blob: e57f8c149bcde6d53acaa738c2c797d9c2ad010f [file] [log] [blame]
Avi Drissman4e1b7bc32022-09-15 14:03:501// Copyright 2013 The Chromium Authors
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
creis4e2ecb72015-06-20 00:46:305/*
6 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
7 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
9 * (http://www.torchmobile.com/)
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
21 * its contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
25 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
danakjc492bf82020-09-09 20:02:4436#include "content/browser/renderer_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:2937
Lei Zhang96031532019-10-10 19:05:4738#include <algorithm>
dcheng36b6aec92015-12-26 06:16:3639#include <utility>
40
[email protected]eabfe1912014-05-12 10:07:2841#include "base/command_line.h"
Ayu Ishii2f825852022-03-08 19:47:3842#include "base/containers/adapters.h"
Rakina Zata Amni627360d2022-02-24 00:53:4043#include "base/debug/dump_without_crashing.h"
Avi Drissmanadac21992023-01-11 23:46:3944#include "base/functional/bind.h"
initial.commit09911bf2008-07-26 23:55:2945#include "base/logging.h"
asvitkine30330812016-08-30 04:01:0846#include "base/metrics/histogram_macros.h"
Charlie Reis23c26da2022-01-29 00:57:4747#include "base/numerics/safe_conversions.h"
Ryan Hamilton7f3bd3d2022-04-23 00:07:3948#include "base/strings/escape.h"
[email protected]348fbaac2013-06-11 06:31:5149#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0050#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3751#include "base/time/time.h"
Carlos Caballero40b0efd2021-01-26 11:55:0052#include "base/trace_event/optional_trace_event.h"
ssid3e765612015-01-28 04:03:4253#include "base/trace_event/trace_event.h"
Daniel Chengabb006862022-09-09 22:39:0854#include "base/types/optional_util.h"
servolkf3955532015-05-16 00:01:5955#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2856#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1857#include "content/browser/bad_message.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3958#include "content/browser/blob_storage/chrome_blob_storage_context.h"
William Liu055a3542023-04-02 17:21:1959#include "content/browser/browser_context_impl.h"
[email protected]825b1662012-03-12 19:07:3160#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4161#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0462#include "content/browser/dom_storage/session_storage_namespace_impl.h"
Nate Chapinc06cf80a2023-11-18 01:12:2563#include "content/browser/preloading/prerender/prerender_host.h"
Sharon Yang242ef822023-05-15 21:07:3264#include "content/browser/process_lock.h"
Mingyu Lei68f34412023-08-21 07:31:3765#include "content/browser/renderer_host/back_forward_cache_impl.h"
danakjc492bf82020-09-09 20:02:4466#include "content/browser/renderer_host/debug_urls.h"
67#include "content/browser/renderer_host/frame_tree.h"
Carlos Caballero40b0efd2021-01-26 11:55:0068#include "content/browser/renderer_host/frame_tree_node.h"
Chris Bookholt27faf8d2022-01-20 01:03:3369#include "content/browser/renderer_host/navigation_controller_delegate.h"
danakjc492bf82020-09-09 20:02:4470#include "content/browser/renderer_host/navigation_entry_impl.h"
Nate Chapin214a86a2021-06-21 20:35:5771#include "content/browser/renderer_host/navigation_entry_restore_context_impl.h"
danakjc492bf82020-09-09 20:02:4472#include "content/browser/renderer_host/navigation_request.h"
William Liu055a3542023-04-02 17:21:1973#include "content/browser/renderer_host/navigation_transitions/navigation_entry_screenshot_cache.h"
74#include "content/browser/renderer_host/navigation_transitions/navigation_entry_screenshot_manager.h"
danakjc492bf82020-09-09 20:02:4475#include "content/browser/renderer_host/navigator.h"
Takashi Toyoshima4dad2c12023-11-13 10:04:4676#include "content/browser/renderer_host/page_delegate.h"
danakjc492bf82020-09-09 20:02:4477#include "content/browser/renderer_host/render_frame_host_delegate.h"
Carlos Caballero40b0efd2021-01-26 11:55:0078#include "content/browser/renderer_host/render_view_host_impl.h"
Mike Jacksone2aa7af2023-05-17 06:45:0779#include "content/browser/renderer_host/system_entropy_utils.h"
Sharon Yangd70a5392021-10-26 23:06:3280#include "content/browser/site_info.h"
[email protected]b6583592012-01-25 19:52:3381#include "content/browser/site_instance_impl.h"
Camille Lamy5193caa2018-10-12 11:59:4282#include "content/common/content_constants_internal.h"
Nate Chapind1fe3612021-04-16 20:45:5783#include "content/common/navigation_params_utils.h"
Nasko Oskovae49e292020-08-13 02:08:5184#include "content/common/trace_utils.h"
[email protected]ccb797302011-12-15 16:55:1185#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1986#include "content/public/browser/content_browser_client.h"
Fergal Daly1336ac642021-09-14 15:13:1187#include "content/public/browser/disallow_activation_reason.h"
[email protected]d9083482012-01-06 00:38:4688#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0089#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3890#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1691#include "content/public/browser/notification_types.h"
Lei Zhang96031532019-10-10 19:05:4792#include "content/public/browser/render_view_host.h"
[email protected]9677a3c2012-12-22 04:18:5893#include "content/public/browser/render_widget_host.h"
94#include "content/public/browser/render_widget_host_view.h"
Mikel Astizba9cf2fd2017-12-17 10:38:1095#include "content/public/browser/replaced_navigation_entry_data.h"
[email protected]4c3a23582012-08-18 08:54:3496#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1997#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3898#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1099#include "content/public/common/content_features.h"
Lei Zhang96031532019-10-10 19:05:47100#include "content/public/common/url_constants.h"
clamy7fced7b2017-11-16 19:52:43101#include "content/public/common/url_utils.h"
servolkf3955532015-05-16 00:01:59102#include "media/base/mime_util.h"
Lei Zhanga4770832023-07-19 18:02:36103#include "net/base/net_errors.h"
Arthur Sonzogni620cec62018-12-13 13:08:57104#include "net/http/http_status_code.h"
Shivani Sharma93329102019-01-24 19:44:18105#include "services/metrics/public/cpp/ukm_builders.h"
106#include "services/metrics/public/cpp/ukm_recorder.h"
Yue Ru Sun128804932020-09-30 22:19:17107#include "services/metrics/public/cpp/ukm_source_id.h"
Nan Lind91c8152021-10-21 16:22:37108#include "services/network/public/mojom/fetch_api.mojom.h"
William Liu2c825472022-10-31 12:01:44109#include "services/network/public/mojom/url_response_head.mojom-shared.h"
[email protected]9677a3c2012-12-22 04:18:58110#include "skia/ext/platform_canvas.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:39111#include "third_party/blink/public/common/blob/blob_utils.h"
Gyuyoung Kim107c2a02021-04-13 01:49:30112#include "third_party/blink/public/common/chrome_debug_urls.h"
Miyoung Shin1c565c912021-03-17 12:11:21113#include "third_party/blink/public/common/history/session_history_constants.h"
Blink Reformata30d4232018-04-07 15:31:06114#include "third_party/blink/public/common/mime_util/mime_util.h"
Minggang Wanga13c796e2021-07-02 05:54:43115#include "third_party/blink/public/common/navigation/navigation_params.h"
Carlos Caballeroede6f8c2021-01-28 11:01:50116#include "third_party/blink/public/common/page_state/page_state_serialization.h"
Minggang Wangb9f3fa92021-07-01 15:30:31117#include "third_party/blink/public/mojom/navigation/navigation_params.mojom.h"
Minggang Wang7ee0c742021-06-16 16:16:51118#include "third_party/blink/public/mojom/navigation/prefetched_signed_exchange_info.mojom.h"
Jiewei Qian87951f52023-10-17 01:33:46119#include "third_party/blink/public/mojom/runtime_feature_state/runtime_feature.mojom.h"
[email protected]cca6f392014-05-28 21:32:26120#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:29121
[email protected]8ff00d72012-10-23 19:12:21122namespace content {
[email protected]e9ba4472008-09-14 15:42:43123namespace {
124
125// Invoked when entries have been pruned, or removed. For example, if the
126// current entries are [google, digg, yahoo], with the current entry google,
127// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:47128void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
Shivani Sharmab9c46de82019-02-08 16:54:50129 int index,
[email protected]c12bf1a12008-09-17 16:28:49130 int count) {
[email protected]8ff00d72012-10-23 19:12:21131 PrunedDetails details;
Shivani Sharmab9c46de82019-02-08 16:54:50132 details.index = index;
[email protected]c12bf1a12008-09-17 16:28:49133 details.count = count;
Sam McNally5c087a32017-08-25 01:46:14134 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:43135}
136
[email protected]e9ba4472008-09-14 15:42:43137// Configure all the NavigationEntries in entries for restore. This resets
138// the transition type to reload and makes sure the content state isn't empty.
139void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57140 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48141 RestoreType type) {
Lei Zhang96031532019-10-10 19:05:47142 for (auto& entry : *entries) {
[email protected]e9ba4472008-09-14 15:42:43143 // Use a transition type of reload so that we don't incorrectly increase
144 // the typed count.
Lei Zhang96031532019-10-10 19:05:47145 entry->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
146 entry->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43147 }
148}
149
[email protected]bf70edce2012-06-20 22:32:22150// Determines whether or not we should be carrying over a user agent override
151// between two NavigationEntries.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57152bool ShouldKeepOverride(NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22153 return last_entry && last_entry->GetIsOverridingUserAgent();
154}
155
Camille Lamy5193caa2018-10-12 11:59:42156// Determines whether to override user agent for a navigation.
157bool ShouldOverrideUserAgent(
158 NavigationController::UserAgentOverrideOption override_user_agent,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57159 NavigationEntry* last_committed_entry) {
Camille Lamy5193caa2018-10-12 11:59:42160 switch (override_user_agent) {
161 case NavigationController::UA_OVERRIDE_INHERIT:
162 return ShouldKeepOverride(last_committed_entry);
163 case NavigationController::UA_OVERRIDE_TRUE:
164 return true;
165 case NavigationController::UA_OVERRIDE_FALSE:
166 return false;
Camille Lamy5193caa2018-10-12 11:59:42167 }
168 NOTREACHED();
169 return false;
170}
171
Rakina Zata Amni312822d72021-06-04 16:13:37172// Returns true if this navigation should be treated as a reload. For e.g.
clamy0a656e42018-02-06 18:18:28173// navigating to the last committed url via the address bar or clicking on a
Rakina Zata Amni312822d72021-06-04 16:13:37174// link which results in a navigation to the last committed URL (but wasn't
175// converted to do a replacement navigation in the renderer), etc.
Fergal Daly766177d2020-07-07 07:54:04176// |node| is the FrameTreeNode which is navigating. |url|, |virtual_url|,
177// |base_url_for_data_url|, |transition_type| correspond to the new navigation
178// (i.e. the pending NavigationEntry). |last_committed_entry| is the last
179// navigation that committed.
180bool ShouldTreatNavigationAsReload(FrameTreeNode* node,
181 const GURL& url,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57182 const GURL& virtual_url,
183 const GURL& base_url_for_data_url,
184 ui::PageTransition transition_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57185 bool is_post,
Rakina Zata Amni312822d72021-06-04 16:13:37186 bool should_replace_current_entry,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57187 NavigationEntryImpl* last_committed_entry) {
Rakina Zata Amni312822d72021-06-04 16:13:37188 // Navigations intended to do a replacement shouldn't be converted to do a
189 // reload.
190 if (should_replace_current_entry)
clamy0a656e42018-02-06 18:18:28191 return false;
clamy0a656e42018-02-06 18:18:28192 // Only convert to reload if at least one navigation committed.
Rakina Zata Amnie2d31312022-11-18 03:38:45193 if (last_committed_entry->IsInitialEntry())
ananta3bdd8ae2016-12-22 17:11:55194 return false;
195
arthursonzogni7a8243682017-12-14 16:41:42196 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28197 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42198 return false;
199
ananta3bdd8ae2016-12-22 17:11:55200 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
201 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
202 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28203 bool transition_type_can_be_converted = false;
204 if (ui::PageTransitionCoreTypeIs(transition_type,
205 ui::PAGE_TRANSITION_RELOAD) &&
206 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
207 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55208 }
clamy0a656e42018-02-06 18:18:28209 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55210 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28211 transition_type_can_be_converted = true;
212 }
213 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
214 transition_type_can_be_converted = true;
215 if (!transition_type_can_be_converted)
216 return false;
217
218 // This check is required for cases like view-source:, etc. Here the URL of
219 // the navigation entry would contain the url of the page, while the virtual
220 // URL contains the full URL including the view-source prefix.
221 if (virtual_url != last_committed_entry->GetVirtualURL())
222 return false;
223
Fergal Daly766177d2020-07-07 07:54:04224 // Check that the URLs match.
225 FrameNavigationEntry* frame_entry = last_committed_entry->GetFrameEntry(node);
226 // If there's no frame entry then by definition the URLs don't match.
227 if (!frame_entry)
228 return false;
229
230 if (url != frame_entry->url())
clamy0a656e42018-02-06 18:18:28231 return false;
232
233 // This check is required for Android WebView loadDataWithBaseURL. Apps
234 // can pass in anything in the base URL and we need to ensure that these
235 // match before classifying it as a reload.
236 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
237 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
238 return false;
ananta3bdd8ae2016-12-22 17:11:55239 }
240
clamy0a656e42018-02-06 18:18:28241 // Skip entries with SSL errors.
242 if (last_committed_entry->ssl_error())
243 return false;
244
245 // Don't convert to a reload when the last navigation was a POST or the new
246 // navigation is a POST.
Fergal Daly766177d2020-07-07 07:54:04247 if (frame_entry->get_has_post_data() || is_post)
clamy0a656e42018-02-06 18:18:28248 return false;
249
250 return true;
ananta3bdd8ae2016-12-22 17:11:55251}
252
Arthur Sonzognic686e8f2024-01-11 08:36:37253std::optional<url::Origin> GetCommittedOriginForFrameEntry(
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12254 const mojom::DidCommitProvisionalLoadParams& params,
255 NavigationRequest* request) {
Nasko Oskov03912102019-01-11 00:21:32256 // Error pages commit in an opaque origin, yet have the real URL that resulted
257 // in an error as the |params.url|. Since successful reload of an error page
258 // should commit in the correct origin, setting the opaque origin on the
259 // FrameNavigationEntry will be incorrect.
Rakina Zata Amniafd3c6582021-11-30 06:19:17260 if (request && request->DidEncounterError())
Arthur Sonzognic686e8f2024-01-11 08:36:37261 return std::nullopt;
Nasko Oskov03912102019-01-11 00:21:32262
Arthur Sonzognic686e8f2024-01-11 08:36:37263 return std::make_optional(params.origin);
Nasko Oskov03912102019-01-11 00:21:32264}
265
Alex Moshchuk99242832023-05-22 17:21:44266bool IsValidURLForNavigation(FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:42267 const GURL& virtual_url,
268 const GURL& dest_url) {
269 // Don't attempt to navigate if the virtual URL is non-empty and invalid.
Alex Moshchuk99242832023-05-22 17:21:44270 if (node->IsOutermostMainFrame() && !virtual_url.is_valid() &&
271 !virtual_url.is_empty()) {
Camille Lamy5193caa2018-10-12 11:59:42272 LOG(WARNING) << "Refusing to load for invalid virtual URL: "
273 << virtual_url.possibly_invalid_spec();
274 return false;
275 }
276
277 // Don't attempt to navigate to non-empty invalid URLs.
278 if (!dest_url.is_valid() && !dest_url.is_empty()) {
279 LOG(WARNING) << "Refusing to load invalid URL: "
280 << dest_url.possibly_invalid_spec();
281 return false;
282 }
283
284 // The renderer will reject IPC messages with URLs longer than
285 // this limit, so don't attempt to navigate with a longer URL.
286 if (dest_url.spec().size() > url::kMaxURLChars) {
287 LOG(WARNING) << "Refusing to load URL as it exceeds " << url::kMaxURLChars
288 << " characters.";
289 return false;
290 }
291
Aaron Colwell33109c592020-04-21 21:31:19292 // Reject renderer debug URLs because they should have been handled before
293 // we get to this point. This check handles renderer debug URLs
294 // that are inside a view-source: URL (e.g. view-source:chrome://kill) and
295 // provides defense-in-depth if a renderer debug URL manages to get here via
296 // some other path. We want to reject the navigation here so it doesn't
297 // violate assumptions in downstream code.
Gyuyoung Kim107c2a02021-04-13 01:49:30298 if (blink::IsRendererDebugURL(dest_url)) {
Aaron Colwell33109c592020-04-21 21:31:19299 LOG(WARNING) << "Refusing to load renderer debug URL: "
300 << dest_url.possibly_invalid_spec();
301 return false;
302 }
303
Alex Moshchuk99242832023-05-22 17:21:44304 // Guests only support navigations to known-safe schemes. This check already
305 // exists in the extensions layer, where it also dispatches proper events to
306 // the guest's embedder (see WebViewGuest::LoadURLWithParams). This check is
307 // for defense-in-depth to ensure that no other places in the codebase
308 // accidentally navigate guests to schemes such as WebUI, which is not
309 // supported. See https://crbug.com/1444221.
310 if (node->current_frame_host()->GetSiteInstance()->IsGuest()) {
311 auto* cpsp = content::ChildProcessSecurityPolicy::GetInstance();
312 if (!cpsp->IsWebSafeScheme(dest_url.scheme()) &&
313 !dest_url.SchemeIs(url::kAboutScheme)) {
314 LOG(WARNING) << "Refusing to load unsafe URL in a guest: "
315 << dest_url.possibly_invalid_spec();
316 return false;
317 }
318 }
319
Camille Lamy5193caa2018-10-12 11:59:42320 return true;
321}
322
Mikel Astizba9cf2fd2017-12-17 10:38:10323// See replaced_navigation_entry_data.h for details: this information is meant
324// to ensure |*output_entry| keeps track of its original URL (landing page in
325// case of server redirects) as it gets replaced (e.g. history.replaceState()),
326// without overwriting it later, for main frames.
327void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57328 NavigationEntryImpl* replaced_entry,
Mikel Astizba9cf2fd2017-12-17 10:38:10329 NavigationEntryImpl* output_entry) {
Rakina Zata Amniafd3c6582021-11-30 06:19:17330 if (output_entry->GetReplacedEntryData().has_value() ||
331 replaced_entry->IsInitialEntry()) {
Mikel Astizba9cf2fd2017-12-17 10:38:10332 return;
Rakina Zata Amniafd3c6582021-11-30 06:19:17333 }
Mikel Astizba9cf2fd2017-12-17 10:38:10334
335 ReplacedNavigationEntryData data;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57336 data.first_committed_url = replaced_entry->GetURL();
337 data.first_timestamp = replaced_entry->GetTimestamp();
338 data.first_transition_type = replaced_entry->GetTransitionType();
Charlie Reisb55438f2019-01-08 01:54:29339 output_entry->set_replaced_entry_data(data);
Mikel Astizba9cf2fd2017-12-17 10:38:10340}
341
Minggang Wangb9f3fa92021-07-01 15:30:31342blink::mojom::NavigationType GetNavigationType(
343 const GURL& old_url,
344 const GURL& new_url,
345 ReloadType reload_type,
346 NavigationEntryImpl* entry,
347 const FrameNavigationEntry& frame_entry,
348 bool has_pending_cross_document_commit,
349 bool is_currently_error_page,
Garrett Tanzer405f3402022-07-21 20:12:49350 bool is_same_document_history_load,
Garrett Tanzer267c2b82022-07-26 16:53:13351 bool is_embedder_initiated_fenced_frame_navigation,
Garrett Tanzer405f3402022-07-21 20:12:49352 bool is_unfenced_top_navigation) {
clamyea99ea12018-05-28 13:54:23353 // Reload navigations
354 switch (reload_type) {
355 case ReloadType::NORMAL:
Minggang Wangb9f3fa92021-07-01 15:30:31356 return blink::mojom::NavigationType::RELOAD;
clamyea99ea12018-05-28 13:54:23357 case ReloadType::BYPASSING_CACHE:
Minggang Wangb9f3fa92021-07-01 15:30:31358 return blink::mojom::NavigationType::RELOAD_BYPASSING_CACHE;
clamyea99ea12018-05-28 13:54:23359 case ReloadType::NONE:
360 break; // Fall through to rest of function.
361 }
362
Lukasz Anforowicz6b75c0d2020-12-01 22:56:08363 if (entry->IsRestored()) {
Minggang Wangb9f3fa92021-07-01 15:30:31364 return entry->GetHasPostData()
365 ? blink::mojom::NavigationType::RESTORE_WITH_POST
366 : blink::mojom::NavigationType::RESTORE;
clamyea99ea12018-05-28 13:54:23367 }
368
danakjb952ef12021-01-14 19:58:49369 const bool can_be_same_document =
370 // A pending cross-document commit means this navigation will not occur in
371 // the current document, as that document would end up being replaced in
372 // the meantime.
373 !has_pending_cross_document_commit &&
374 // If the current document is an error page, we should always treat it as
375 // a different-document navigation so that we'll attempt to load the
376 // document we're navigating to (and not stay in the current error page).
Garrett Tanzer405f3402022-07-21 20:12:49377 !is_currently_error_page &&
Garrett Tanzer267c2b82022-07-26 16:53:13378 // If the navigation is an embedder-initiated navigation of a fenced
379 // frame root (i.e. enters a fenced frame tree from outside),
380 // same-document navigations should be disabled because we don't want to
381 // allow information to be joined across multiple embedder-initiated
382 // fenced frame navigations (which may contain separate cross-site data).
383 !is_embedder_initiated_fenced_frame_navigation &&
Garrett Tanzer405f3402022-07-21 20:12:49384 // If the navigation is to _unfencedTop (i.e. escapes a fenced frame),
385 // same-document navigations should be disabled because we want to force
386 // the creation of a new browsing context group.
387 !is_unfenced_top_navigation;
danakjd83d706d2020-11-25 22:11:12388
clamyea99ea12018-05-28 13:54:23389 // History navigations.
390 if (frame_entry.page_state().IsValid()) {
danakjd83d706d2020-11-25 22:11:12391 return can_be_same_document && is_same_document_history_load
Minggang Wangb9f3fa92021-07-01 15:30:31392 ? blink::mojom::NavigationType::HISTORY_SAME_DOCUMENT
393 : blink::mojom::NavigationType::HISTORY_DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23394 }
395 DCHECK(!is_same_document_history_load);
396
397 // A same-document fragment-navigation happens when the only part of the url
398 // that is modified is after the '#' character.
399 //
400 // When modifying this condition, please take a look at:
danakjd83d706d2020-11-25 22:11:12401 // FrameLoader::ShouldPerformFragmentNavigation().
clamyea99ea12018-05-28 13:54:23402 //
403 // Note: this check is only valid for navigations that are not history
404 // navigations. For instance, if the history is: 'A#bar' -> 'B' -> 'A#foo', a
405 // history navigation from 'A#foo' to 'A#bar' is not a same-document
406 // navigation, but a different-document one. This is why history navigation
407 // are classified before this check.
Lei Zhang96031532019-10-10 19:05:47408 bool is_same_doc = new_url.has_ref() && old_url.EqualsIgnoringRef(new_url) &&
409 frame_entry.method() == "GET";
danakjd83d706d2020-11-25 22:11:12410
411 // The one case where we do the wrong thing here and incorrectly choose
412 // SAME_DOCUMENT is if the navigation is browser-initiated but the document in
413 // the renderer is a frameset. All frameset navigations should be
414 // DIFFERENT_DOCUMENT, even if their URLs match. A renderer-initiated
415 // navigation would do the right thing, as it would send it to the browser and
416 // all renderer-initiated navigations are DIFFERENT_DOCUMENT (they don't get
417 // into this method). But since we can't tell that case here for browser-
418 // initiated navigations, we have to get the renderer involved. In that case
419 // the navigation would be restarted due to the renderer spending a reply of
420 // mojom::CommitResult::RestartCrossDocument.
421
422 return can_be_same_document && is_same_doc
Minggang Wangb9f3fa92021-07-01 15:30:31423 ? blink::mojom::NavigationType::SAME_DOCUMENT
424 : blink::mojom::NavigationType::DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23425}
426
Camille Lamy5193caa2018-10-12 11:59:42427// Adjusts the original input URL if needed, to get the URL to actually load and
428// the virtual URL, which may differ.
429void RewriteUrlForNavigation(const GURL& original_url,
430 BrowserContext* browser_context,
431 GURL* url_to_load,
432 GURL* virtual_url,
433 bool* reverse_on_redirect) {
Camille Lamy5193caa2018-10-12 11:59:42434 // Allow the browser URL handler to rewrite the URL. This will, for example,
435 // remove "view-source:" from the beginning of the URL to get the URL that
436 // will actually be loaded. This real URL won't be shown to the user, just
437 // used internally.
Lukasz Anforowicz7b078792020-10-20 17:04:31438 *url_to_load = *virtual_url = original_url;
Camille Lamy5193caa2018-10-12 11:59:42439 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
440 url_to_load, browser_context, reverse_on_redirect);
441}
442
443#if DCHECK_IS_ON()
444// Helper sanity check function used in debug mode.
445void ValidateRequestMatchesEntry(NavigationRequest* request,
446 NavigationEntryImpl* entry) {
447 if (request->frame_tree_node()->IsMainFrame()) {
448 DCHECK_EQ(request->browser_initiated(), !entry->is_renderer_initiated());
449 DCHECK(ui::PageTransitionTypeIncludingQualifiersIs(
Minggang Wangb9f3fa92021-07-01 15:30:31450 ui::PageTransitionFromInt(request->common_params().transition),
451 entry->GetTransitionType()));
Camille Lamy5193caa2018-10-12 11:59:42452 }
Nasko Oskovc36327d2019-01-03 23:23:04453 DCHECK_EQ(request->commit_params().should_clear_history_list,
Camille Lamy5193caa2018-10-12 11:59:42454 entry->should_clear_history_list());
455 DCHECK_EQ(request->common_params().has_user_gesture,
456 entry->has_user_gesture());
457 DCHECK_EQ(request->common_params().base_url_for_data_url,
458 entry->GetBaseURLForDataURL());
Nasko Oskovc36327d2019-01-03 23:23:04459 DCHECK_EQ(request->commit_params().can_load_local_resources,
Camille Lamy5193caa2018-10-12 11:59:42460 entry->GetCanLoadLocalResources());
461 DCHECK_EQ(request->common_params().started_from_context_menu,
462 entry->has_started_from_context_menu());
463
464 FrameNavigationEntry* frame_entry =
465 entry->GetFrameEntry(request->frame_tree_node());
466 if (!frame_entry) {
467 NOTREACHED();
468 return;
469 }
470
Camille Lamy5193caa2018-10-12 11:59:42471 DCHECK_EQ(request->common_params().method, frame_entry->method());
472
Nasko Oskovc36327d2019-01-03 23:23:04473 size_t redirect_size = request->commit_params().redirects.size();
Camille Lamy5193caa2018-10-12 11:59:42474 if (redirect_size == frame_entry->redirect_chain().size()) {
475 for (size_t i = 0; i < redirect_size; ++i) {
Nasko Oskovc36327d2019-01-03 23:23:04476 DCHECK_EQ(request->commit_params().redirects[i],
Camille Lamy5193caa2018-10-12 11:59:42477 frame_entry->redirect_chain()[i]);
478 }
479 } else {
480 NOTREACHED();
481 }
482}
483#endif // DCHECK_IS_ON()
484
Dave Tapuska8bfd84c2019-03-26 20:47:16485// Returns whether the session history NavigationRequests in |navigations|
Nate Chapinbf682fa32022-09-26 22:41:20486// would stay within the subtree of |sandboxed_initiator_rfh|.
Dave Tapuska8bfd84c2019-03-26 20:47:16487bool DoesSandboxNavigationStayWithinSubtree(
Nate Chapinbf682fa32022-09-26 22:41:20488 RenderFrameHostImpl* sandboxed_initiator_rfh,
Dave Tapuska8bfd84c2019-03-26 20:47:16489 const std::vector<std::unique_ptr<NavigationRequest>>& navigations) {
Nate Chapinbf682fa32022-09-26 22:41:20490 DCHECK(sandboxed_initiator_rfh);
491 DCHECK(sandboxed_initiator_rfh->IsSandboxed(
492 network::mojom::WebSandboxFlags::kTopNavigation));
Dave Tapuska8bfd84c2019-03-26 20:47:16493 for (auto& item : navigations) {
494 bool within_subtree = false;
495 // Check whether this NavigationRequest affects a frame within the
496 // sandboxed frame's subtree by walking up the tree looking for the
497 // sandboxed frame.
498 for (auto* frame = item->frame_tree_node(); frame;
Alexander Timin381e7e182020-04-28 19:04:03499 frame = FrameTreeNode::From(frame->parent())) {
Nate Chapinbf682fa32022-09-26 22:41:20500 if (frame == sandboxed_initiator_rfh->frame_tree_node()) {
Dave Tapuska8bfd84c2019-03-26 20:47:16501 within_subtree = true;
502 break;
503 }
504 }
505 if (!within_subtree)
506 return false;
507 }
508 return true;
509}
510
William Liu122754942024-01-18 22:34:39511// Used for "Navigation.SessionHistoryCount" histogram.
512enum class HistoryNavTypeForHistogram {
513 // A same-doc or cross-doc navigation of the main frame. We can only have one
514 // main frame request per `NavigationController::GoToIndex()`.
515 kMainFrame = 0,
516 // `NavigationController::GoToIndex()` creates one main frame request and
517 // one or more subframe requests.
518 kMainFrameAndSubframe,
519 // `NavigationController::GoToIndex()` creates one or more subframe requests.
520 kSubframe,
521 // Used for histogram boundary.
522 kCount
523};
524
525void CountRequests(
526 const std::vector<std::unique_ptr<NavigationRequest>>& requests,
527 int& mutable_main_frame_cnt,
528 int& mutable_subframe_cnt) {
529 for (const auto& req : requests) {
530 if (req->IsInPrimaryMainFrame()) {
531 // We can only have one main frame navigation at a time.
532 CHECK_EQ(mutable_main_frame_cnt, 0);
533 ++mutable_main_frame_cnt;
534 } else if (req->GetNavigatingFrameType() == FrameType::kSubframe) {
535 ++mutable_subframe_cnt;
536 }
537 }
538}
539
540// Record the number of different types of navigations as histograms. See
541// `HistoryNavTypeForHistogram` for the types.
542void CountBrowserInitiatedMainframeAndSubframeHistoryNavigaions(
543 const std::vector<std::unique_ptr<NavigationRequest>>& cross_doc_requests,
544 const std::vector<std::unique_ptr<NavigationRequest>>& same_doc_requests) {
545 // We must have one request.
546 CHECK(!cross_doc_requests.empty() || !same_doc_requests.empty());
547
548 int main_frame_cnt = 0;
549 int subframe_cnt = 0;
550 CountRequests(cross_doc_requests, main_frame_cnt, subframe_cnt);
551 CountRequests(same_doc_requests, main_frame_cnt, subframe_cnt);
552
553 std::optional<HistoryNavTypeForHistogram> history_nav_type;
554 if (main_frame_cnt > 0) {
555 if (subframe_cnt == 0) {
556 history_nav_type = HistoryNavTypeForHistogram::kMainFrame;
557 } else {
558 history_nav_type = HistoryNavTypeForHistogram::kMainFrameAndSubframe;
559 }
560 } else if (subframe_cnt > 0) {
561 history_nav_type = HistoryNavTypeForHistogram::kSubframe;
562 }
563 if (history_nav_type.has_value()) {
564 UMA_HISTOGRAM_ENUMERATION("Navigation.BrowserInitiatedSessionHistoryCount",
565 history_nav_type.value(),
566 HistoryNavTypeForHistogram::kCount);
567 }
568}
569
[email protected]e9ba4472008-09-14 15:42:43570} // namespace
571
arthursonzogni66f711c2019-10-08 14:40:36572// NavigationControllerImpl::PendingEntryRef------------------------------------
573
574NavigationControllerImpl::PendingEntryRef::PendingEntryRef(
575 base::WeakPtr<NavigationControllerImpl> controller)
576 : controller_(controller) {}
577
578NavigationControllerImpl::PendingEntryRef::~PendingEntryRef() {
579 if (!controller_) // Can be null with interstitials.
580 return;
581
582 controller_->PendingEntryRefDeleted(this);
583}
584
[email protected]d202a7c2012-01-04 07:53:47585// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29586
[email protected]23a918b2014-07-15 09:51:36587const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23588
[email protected]765b35502008-08-21 00:51:20589// static
[email protected]d202a7c2012-01-04 07:53:47590size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23591 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20592
[email protected]e6fec472013-05-14 05:29:02593// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20594// when testing.
595static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29596
[email protected]71fde352011-12-29 03:29:56597// static
dcheng9bfa5162016-04-09 01:00:57598std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
599 const GURL& url,
Lukasz Anforowicz641234d52019-11-07 21:07:10600 Referrer referrer,
Arthur Sonzognic686e8f2024-01-11 08:36:37601 std::optional<url::Origin> initiator_origin,
602 std::optional<GURL> initiator_base_url,
Lukasz Anforowicz641234d52019-11-07 21:07:10603 ui::PageTransition transition,
604 bool is_renderer_initiated,
605 const std::string& extra_headers,
606 BrowserContext* browser_context,
607 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
608 return NavigationControllerImpl::CreateNavigationEntry(
W. James MacLean23e90a12022-12-21 04:38:21609 url, referrer, std::move(initiator_origin), std::move(initiator_base_url),
Arthur Sonzognic686e8f2024-01-11 08:36:37610 std::nullopt /* source_process_site_url */, transition,
Sharon Yang242ef822023-05-15 21:07:32611 is_renderer_initiated, extra_headers, browser_context,
612 std::move(blob_url_loader_factory), true /* rewrite_virtual_urls */);
Lukasz Anforowicz641234d52019-11-07 21:07:10613}
614
615// static
616std::unique_ptr<NavigationEntryImpl>
617NavigationControllerImpl::CreateNavigationEntry(
618 const GURL& url,
619 Referrer referrer,
Arthur Sonzognic686e8f2024-01-11 08:36:37620 std::optional<url::Origin> initiator_origin,
621 std::optional<GURL> initiator_base_url,
622 std::optional<GURL> source_process_site_url,
dcheng9bfa5162016-04-09 01:00:57623 ui::PageTransition transition,
624 bool is_renderer_initiated,
625 const std::string& extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:09626 BrowserContext* browser_context,
Julie Jeongeun Kim5b9aff72022-05-02 02:10:17627 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory,
628 bool rewrite_virtual_urls) {
629 GURL url_to_load = url;
630 GURL virtual_url = url;
[email protected]71fde352011-12-29 03:29:56631 bool reverse_on_redirect = false;
Julie Jeongeun Kim5b9aff72022-05-02 02:10:17632 if (rewrite_virtual_urls) {
633 RewriteUrlForNavigation(url, browser_context, &url_to_load, &virtual_url,
634 &reverse_on_redirect);
635 }
Lukasz Anforowicz641234d52019-11-07 21:07:10636 // Let the NTP override the navigation params and pretend that this is a
637 // browser-initiated, bookmark-like navigation.
638 GetContentClient()->browser()->OverrideNavigationParams(
Sharon Yang242ef822023-05-15 21:07:32639 source_process_site_url, &transition, &is_renderer_initiated, &referrer,
Scott Violetcf6ea7e2021-06-09 21:09:21640 &initiator_origin);
Lukasz Anforowicz641234d52019-11-07 21:07:10641
Patrick Monettef507e982019-06-19 20:18:06642 auto entry = std::make_unique<NavigationEntryImpl>(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28643 nullptr, // The site instance for tabs is sent on navigation
644 // (WebContents::GetSiteInstance).
W. James MacLean23e90a12022-12-21 04:38:21645 url_to_load, referrer, initiator_origin, initiator_base_url,
646 std::u16string(), transition, is_renderer_initiated,
647 blob_url_loader_factory,
Rakina Zata Amniafd3c6582021-11-30 06:19:17648 /* is_initial_entry = */ false);
Camille Lamy5193caa2018-10-12 11:59:42649 entry->SetVirtualURL(virtual_url);
650 entry->set_user_typed_url(virtual_url);
[email protected]71fde352011-12-29 03:29:56651 entry->set_update_virtual_url_with_url(reverse_on_redirect);
652 entry->set_extra_headers(extra_headers);
Patrick Monettef507e982019-06-19 20:18:06653 return entry;
[email protected]71fde352011-12-29 03:29:56654}
655
[email protected]cdcb1dee2012-01-04 00:46:20656// static
657void NavigationController::DisablePromptOnRepost() {
658 g_check_for_repost = false;
659}
660
[email protected]c5b88d82012-10-06 17:03:33661base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
662 base::Time t) {
663 // If |t| is between the water marks, we're in a run of duplicates
664 // or just getting out of it, so increase the high-water mark to get
665 // a time that probably hasn't been used before and return it.
666 if (low_water_mark_ <= t && t <= high_water_mark_) {
Peter Kastinge5a38ed2021-10-02 03:06:35667 high_water_mark_ += base::Microseconds(1);
[email protected]c5b88d82012-10-06 17:03:33668 return high_water_mark_;
669 }
670
671 // Otherwise, we're clear of the last duplicate run, so reset the
672 // water marks.
673 low_water_mark_ = high_water_mark_ = t;
674 return t;
675}
676
ckitagawa0faa5e42020-06-17 17:30:54677NavigationControllerImpl::ScopedShowRepostDialogForTesting::
678 ScopedShowRepostDialogForTesting()
679 : was_disallowed_(g_check_for_repost) {
680 g_check_for_repost = true;
681}
682
683NavigationControllerImpl::ScopedShowRepostDialogForTesting::
684 ~ScopedShowRepostDialogForTesting() {
685 g_check_for_repost = was_disallowed_;
686}
687
Nate Chapin9eb16be72022-09-23 22:54:31688NavigationControllerImpl::RemovedEntriesTracker::RemovedEntriesTracker(
689 base::SafeRef<NavigationControllerImpl> controller)
690 : controller_(controller) {
691 for (FrameTreeNode* frame_tree_node : controller_->frame_tree().Nodes()) {
692 names_to_nodes_.insert({frame_tree_node->unique_name(), frame_tree_node});
693 frame_tree_node_id_to_keys_.insert(
694 {frame_tree_node->frame_tree_node_id(), std::set<std::string>()});
695 if (auto* frame_entry = frame_tree_node->current_frame_host()
696 ->last_committed_frame_entry()) {
697 frame_tree_node_id_to_doc_seq_nos_.insert(
698 {frame_tree_node->frame_tree_node_id(),
699 frame_entry->document_sequence_number()});
700 }
701 }
702 PopulateKeySet(Direction::kBack);
703 PopulateKeySet(Direction::kForward);
704}
705
706void NavigationControllerImpl::RemovedEntriesTracker::PopulateKeySet(
707 Direction direction) {
708 // Keep track of which FrameTreeNodes may still have relevant API keys in
709 // additional FrameNavigationEntries.
710 std::set<FrameTreeNode*> nodes_to_process;
711 for (FrameTreeNode* node : controller_->frame_tree().Nodes()) {
712 nodes_to_process.insert(node);
713 }
714
715 const int offset = direction == Direction::kForward ? 1 : -1;
716 const int start = direction == Direction::kForward
717 ? controller_->GetLastCommittedEntryIndex()
718 : controller_->GetLastCommittedEntryIndex() - 1;
719 for (int i = start;
720 i >= 0 && i < controller_->GetEntryCount() && !nodes_to_process.empty();
721 i += offset) {
722 std::set<FrameTreeNode*> nodes_to_continue_processing;
723
724 NavigationEntryImpl* entry = controller_->GetEntryAtIndex(i);
725 entry->ForEachFrameEntry([this, &nodes_to_process,
726 &nodes_to_continue_processing,
727 &entry](FrameNavigationEntry* frame_entry) {
728 // Find the |node| that matches |frame_entry|, if any.
729 FrameTreeNode* node = nullptr;
730 if (frame_entry == entry->root_node()->frame_entry) {
731 node = controller_->frame_tree().root();
732 } else {
733 auto it = names_to_nodes_.find(frame_entry->frame_unique_name());
734 if (it == names_to_nodes_.end())
735 return;
736 node = it->second;
737 }
738
739 // Skip this node if a previous step determine there are no longer
740 // relevant navigation API keys in this direction.
741 if (nodes_to_process.find(node) == nodes_to_process.end())
742 return;
743
744 // Stop processing |node| if we reach a point where it's cross-origin.
745 // See also PopulateSingleNavigationApiHistoryEntryVector().
746 url::Origin frame_entry_origin =
747 frame_entry->committed_origin().value_or(url::Origin::Resolve(
748 frame_entry->url(),
749 frame_entry->initiator_origin().value_or(url::Origin())));
750 if (!node->current_origin().IsSameOriginWith(frame_entry_origin))
751 return;
752
753 frame_tree_node_id_to_keys_[node->frame_tree_node_id()].insert(
754 frame_entry->navigation_api_key());
755 // Mark |node| as needing more processing for the next entry.
756 nodes_to_continue_processing.insert(node);
757
758 // Check whether |node| went cross-document. If so, its children are
759 // no longer the same conceptual iframe as the current one, and
760 // should no longer be processed. This check is intentionally done
761 // after processing the current |node|, which may still have relevant
762 // discarded API keys.
763 if (frame_entry->document_sequence_number() !=
764 frame_tree_node_id_to_doc_seq_nos_[node->frame_tree_node_id()]) {
Arthur Sonzognif6785ec2022-12-05 10:11:50765 for (auto* descendant : node->frame_tree().SubtreeNodes(node))
Nate Chapin9eb16be72022-09-23 22:54:31766 nodes_to_process.erase(descendant);
767 }
768 });
769
770 nodes_to_process.swap(nodes_to_continue_processing);
771 }
772}
773
774NavigationControllerImpl::RemovedEntriesTracker::~RemovedEntriesTracker() {
775 std::set<std::string> all_keys;
776 // Find all remaining navigation API keys after some entries have been
777 // removed.
778 for (auto& entry : controller_->entries_) {
779 entry->ForEachFrameEntry([&all_keys](FrameNavigationEntry* frame_entry) {
780 all_keys.insert(frame_entry->navigation_api_key());
781 });
782 }
783
784 // Notify each frame in the renderer of any disposed navigation API keys.
785 for (auto& id_to_keys : frame_tree_node_id_to_keys_) {
786 std::vector<std::string> disposed_keys;
787 for (const auto& key : id_to_keys.second) {
788 if (all_keys.find(key) == all_keys.end())
789 disposed_keys.push_back(key);
790 }
791 if (disposed_keys.empty())
792 continue;
793
794 FrameTreeNode* node = controller_->frame_tree().FindByID(id_to_keys.first);
795 auto& frame = node->current_frame_host()->GetAssociatedLocalFrame();
796 frame->NotifyNavigationApiOfDisposedEntries(disposed_keys);
797 }
798}
799
[email protected]d202a7c2012-01-04 07:53:47800NavigationControllerImpl::NavigationControllerImpl(
Carlos Caballero40b0efd2021-01-26 11:55:00801 BrowserContext* browser_context,
802 FrameTree& frame_tree,
803 NavigationControllerDelegate* delegate)
804 : frame_tree_(frame_tree),
805 browser_context_(browser_context),
[email protected]ec6c05f2013-10-23 18:41:57806 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22807 ssl_manager_(this),
Mingyu Lei68f34412023-08-21 07:31:37808 get_timestamp_callback_(base::BindRepeating(&base::Time::Now)),
809 back_forward_cache_(browser_context) {
[email protected]3d7474ff2011-07-27 17:47:37810 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29811}
812
[email protected]d202a7c2012-01-04 07:53:47813NavigationControllerImpl::~NavigationControllerImpl() {
arthursonzogni69a6a1b2019-09-17 09:23:00814 // The NavigationControllerImpl might be called inside its delegate
815 // destructor. Calling it is not valid anymore.
816 delegate_ = nullptr;
817 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:29818}
819
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57820BrowserContext* NavigationControllerImpl::GetBrowserContext() {
[email protected]a26023822011-12-29 00:23:55821 return browser_context_;
822}
823
[email protected]d202a7c2012-01-04 07:53:47824void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30825 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36826 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57827 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
Charlie Reis23c26da2022-01-29 00:57:47828 // Note that it's possible for `entries_` to contain multiple entries at this
829 // point, as Restore() might be called on a NavigationController that is
830 // already used (e.g. due to WebView's restoreState() API), not only for fresh
831 // NavigationControllers. These entries are not cleared to preserve legacy
832 // behavior and also because `pending_entry_` might point to one of the
833 // pre-existing entries. An exception for this is when `entries_` contains
834 // only the initial NavigationEntry, which must be removed.
835
836 // Do not proceed if selected_navigation will be out of bounds for the updated
837 // entries_ list, since it will be assigned to last_committed_entry_index_ and
838 // used to index entries_.
839 // TODO(https://crbug.com/1287624): Consider also returning early if entries
840 // is empty, since there should be no work to do (rather than marking the
841 // existing entries as needing reload). Also consider returning early if the
842 // selected index is -1, which represents a no-committed-entry state.
843 if (selected_navigation < -1 ||
844 selected_navigation >=
845 base::checked_cast<int>(entries->size() + entries_.size())) {
846 return;
Rakina Zata Amni2322f4f82022-01-24 13:24:24847 }
Charlie Reis23c26da2022-01-29 00:57:47848
Rakina Zata Amni46087a12022-11-11 08:28:38849 // There will always be at least one entry (new NavigationControllers will
850 // have the initial NavigationEntry).
851 if (selected_navigation == -1)
852 selected_navigation = 0;
Charlie Reis23c26da2022-01-29 00:57:47853
Rakina Zata Amni46087a12022-11-11 08:28:38854 if (GetLastCommittedEntry()->IsInitialEntry() && entries->size() > 0) {
855 // If we are on the initial NavigationEntry, it must be the only entry in
856 // the list. Since it's impossible to do a history navigation to the
857 // initial NavigationEntry, `pending_entry_index_` must be -1 (but
858 // `pending_entry` might be set for a new non-history navigation).
859 // Note that we should not clear `entries_` if `entries` is empty (when
860 // InitialNavigationEntry mode is enabled), since that would leave us
861 // without any NavigationEntry.
862 CHECK_EQ(1, GetEntryCount());
863 CHECK_EQ(-1, pending_entry_index_);
864 entries_.clear();
Charlie Reis23c26da2022-01-29 00:57:47865 }
[email protected]ce3fa3c2009-04-20 19:55:57866
[email protected]ce3fa3c2009-04-20 19:55:57867 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:44868 needs_reload_type_ = NeedsReloadType::kRestoreSession;
avif16f85a72015-11-13 18:25:03869 entries_.reserve(entries->size());
Charlie Reis23c26da2022-01-29 00:57:47870 for (auto& entry : *entries) {
Rakina Zata Amni996ee412022-02-17 04:51:43871 if (entry->GetURL().is_empty()) {
872 // We're trying to restore an entry with an empty URL (e.g. from
Rakina Zata Amni2729a512022-03-16 05:54:01873 // persisting the initial NavigationEntry [which is no longer possible but
874 // some old persisted sessions might still contain it] or when the
875 // serializer failed to write the URL because it's too long). Trying to
876 // restore and navigate to an entry with an empty URL will result in
877 // crashes, so change the URL to about:blank. See also
878 // https://crbug.com/1240138 and https://crbug.com/1299335.
Rakina Zata Amni996ee412022-02-17 04:51:43879 entry->SetURL(GURL(url::kAboutBlankURL));
880 }
dcheng36b6aec92015-12-26 06:16:36881 entries_.push_back(
882 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
Charlie Reis23c26da2022-01-29 00:57:47883 }
avif16f85a72015-11-13 18:25:03884
885 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
886 // cleared out safely.
887 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57888
889 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36890 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57891}
892
toyoshim6142d96f2016-12-19 09:07:25893void NavigationControllerImpl::Reload(ReloadType reload_type,
894 bool check_for_repost) {
Rakina Zata Amnid605d462022-06-01 10:17:03895 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy_caller1", "Reload_type",
896 (int)reload_type);
897 SCOPED_CRASH_KEY_BOOL("nav_reentrancy_caller1", "Reload_check",
898 check_for_repost);
liaoyuke9168fba2017-03-10 19:20:28899 DCHECK_NE(ReloadType::NONE, reload_type);
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28900 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32901 int current_index = -1;
902
Carlos IL42b416592019-10-07 23:10:36903 if (entry_replaced_by_post_commit_error_) {
904 // If there is an entry that was replaced by a currently active post-commit
905 // error navigation, this can't be the initial navigation.
906 DCHECK(!IsInitialNavigation());
907 // If the current entry is a post commit error, we reload the entry it
908 // replaced instead. We leave the error entry in place until a commit
909 // replaces it, but the pending entry points to the original entry in the
910 // meantime. Note that NavigateToExistingPendingEntry is able to handle the
911 // case that pending_entry_ != entries_[pending_entry_index_].
912 entry = entry_replaced_by_post_commit_error_.get();
913 current_index = GetCurrentEntryIndex();
914 } else if (IsInitialNavigation() && pending_entry_) {
915 // If we are reloading the initial navigation, just use the current
916 // pending entry. Otherwise look up the current entry.
[email protected]59167c22013-06-03 18:07:32917 entry = pending_entry_;
918 // The pending entry might be in entries_ (e.g., after a Clone), so we
919 // should also update the current_index.
920 current_index = pending_entry_index_;
921 } else {
arthursonzogni69a6a1b2019-09-17 09:23:00922 DiscardNonCommittedEntries();
[email protected]59167c22013-06-03 18:07:32923 current_index = GetCurrentEntryIndex();
924 if (current_index != -1) {
creis3da03872015-02-20 21:12:32925 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32926 }
[email protected]979a4bc2013-04-24 01:27:15927 }
[email protected]241db352013-04-22 18:04:05928
[email protected]59167c22013-06-03 18:07:32929 // If we are no where, then we can't reload. TODO(darin): We should add a
930 // CanReload method.
931 if (!entry)
932 return;
933
Rakina Zata Amnif297a802022-01-18 03:53:43934 if (entry->IsInitialEntryNotForSynchronousAboutBlank()) {
935 // We should never navigate to an existing initial NavigationEntry that is
936 // the initial NavigationEntry for the initial empty document that hasn't
937 // been overridden by the synchronous about:blank commit, to preserve
938 // legacy behavior where trying to reload when the main frame is on the
939 // initial empty document won't result in a navigation. See also
940 // https://crbug.com/1277414.
941 return;
942 }
943
Aran Gilman37d11632019-10-08 23:07:15944 if (g_check_for_repost && check_for_repost && entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30945 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07946 // they really want to do this. If they do, the dialog will call us back
947 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57948 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02949
[email protected]106a0812010-03-18 00:15:12950 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57951 delegate_->ActivateAndShowRepostFormWarningDialog();
Lei Zhang96031532019-10-10 19:05:47952 return;
initial.commit09911bf2008-07-26 23:55:29953 }
Lei Zhang96031532019-10-10 19:05:47954
Wang Huia25efabc2022-09-24 17:27:22955 // Set ReloadType for |entry|.
956 entry->set_reload_type(reload_type);
957
Lei Zhang96031532019-10-10 19:05:47958 if (!IsInitialNavigation())
959 DiscardNonCommittedEntries();
960
961 pending_entry_ = entry;
962 pending_entry_index_ = current_index;
963 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
964
Nate Chapin45f620582021-09-30 17:45:43965 // location.reload() goes through BeginNavigation, so all reloads triggered
966 // via this codepath are browser initiated.
Yoav Weiss8c573952022-11-17 17:35:13967 NavigateToExistingPendingEntry(
968 reload_type,
969 /*initiator_rfh=*/nullptr,
Arthur Sonzognic686e8f2024-01-11 08:36:37970 /*soft_navigation_heuristics_task_id=*/std::nullopt,
Yoav Weiss8c573952022-11-17 17:35:13971 /*navigation_api_key=*/nullptr);
initial.commit09911bf2008-07-26 23:55:29972}
973
[email protected]d202a7c2012-01-04 07:53:47974void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48975 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12976}
977
[email protected]d202a7c2012-01-04 07:53:47978void NavigationControllerImpl::ContinuePendingReload() {
Wang Hui96ab1012022-10-11 02:05:49979 // If the pending reload type has been cleared by another navigation
980 // committing, then do not proceed to reload after a form repost dialog.
toyoshim0df1d3a2016-09-09 09:52:48981 if (pending_reload_ == ReloadType::NONE) {
Wang Hui96ab1012022-10-11 02:05:49982 return;
[email protected]106a0812010-03-18 00:15:12983 }
Wang Hui96ab1012022-10-11 02:05:49984 Reload(pending_reload_, false);
985 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12986}
987
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57988bool NavigationControllerImpl::IsInitialNavigation() {
[email protected]27ba81c2012-08-21 17:04:09989 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11990}
991
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57992bool NavigationControllerImpl::IsInitialBlankNavigation() {
Rakina Zata Amni46087a12022-11-11 08:28:38993 // Check that we're on the initial NavigationEntry and that this is not a
994 // cloned tab.
995 return IsInitialNavigation() && GetEntryCount() == 1 &&
996 GetLastCommittedEntry()->IsInitialEntry() &&
997 GetLastCommittedEntry()->restore_type() == RestoreType::kNotRestored;
creis10a4ab72015-10-13 17:22:40998}
999
Aran Gilman37d11632019-10-08 23:07:151000NavigationEntryImpl* NavigationControllerImpl::GetEntryWithUniqueID(
1001 int nav_entry_id) const {
avi254eff02015-07-01 08:27:581002 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:031003 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:581004}
1005
Adithya Srinivasan9b0c99c2021-08-10 15:19:451006NavigationEntryImpl*
1007NavigationControllerImpl::GetEntryWithUniqueIDIncludingPending(
1008 int nav_entry_id) const {
1009 NavigationEntryImpl* entry = GetEntryWithUniqueID(nav_entry_id);
1010 if (entry)
1011 return entry;
1012 return pending_entry_ && pending_entry_->GetUniqueID() == nav_entry_id
Keishi Hattori0e45c022021-11-27 09:25:521013 ? pending_entry_.get()
Adithya Srinivasan9b0c99c2021-08-10 15:19:451014 : nullptr;
1015}
1016
W. James MacLeanc07dc41b2022-07-25 18:52:161017void NavigationControllerImpl::RegisterExistingOriginAsHavingDefaultIsolation(
W. James MacLean1c40862c2020-04-27 21:05:571018 const url::Origin& origin) {
1019 for (int i = 0; i < GetEntryCount(); i++) {
1020 auto* entry = GetEntryAtIndex(i);
W. James MacLeanc07dc41b2022-07-25 18:52:161021 entry->RegisterExistingOriginAsHavingDefaultIsolation(origin);
W. James MacLean1c40862c2020-04-27 21:05:571022 }
1023 if (entry_replaced_by_post_commit_error_) {
1024 // It's possible we could come back to this entry if the error
1025 // page/interstitial goes away.
1026 entry_replaced_by_post_commit_error_
W. James MacLeanc07dc41b2022-07-25 18:52:161027 ->RegisterExistingOriginAsHavingDefaultIsolation(origin);
W. James MacLean1c40862c2020-04-27 21:05:571028 }
W. James MacLean1c40862c2020-04-27 21:05:571029}
1030
avi25764702015-06-23 15:43:371031void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:571032 std::unique_ptr<NavigationEntryImpl> entry) {
arthursonzogni69a6a1b2019-09-17 09:23:001033 DiscardNonCommittedEntries();
avi25764702015-06-23 15:43:371034 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:271035 DCHECK_EQ(-1, pending_entry_index_);
[email protected]765b35502008-08-21 00:51:201036}
1037
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571038NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() {
[email protected]cbab76d2008-10-13 22:42:471039 if (pending_entry_)
1040 return pending_entry_;
1041 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:201042}
1043
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571044NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() {
[email protected]59167c22013-06-03 18:07:321045 // The pending entry is safe to return for new (non-history), browser-
1046 // initiated navigations. Most renderer-initiated navigations should not
1047 // show the pending entry, to prevent URL spoof attacks.
1048 //
1049 // We make an exception for renderer-initiated navigations in new tabs, as
1050 // long as no other page has tried to access the initial empty document in
1051 // the new tab. If another page modifies this blank page, a URL spoof is
1052 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:321053 bool safe_to_show_pending =
1054 pending_entry_ &&
1055 // Require a new navigation.
avi0dca04d2015-01-26 20:21:091056 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:321057 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:461058 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:321059
1060 // Also allow showing the pending entry for history navigations in a new tab,
1061 // such as Ctrl+Back. In this case, no existing page is visible and no one
1062 // can script the new tab before it commits.
Aran Gilman37d11632019-10-08 23:07:151063 if (!safe_to_show_pending && pending_entry_ && pending_entry_index_ != -1 &&
1064 IsInitialNavigation() && !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:321065 safe_to_show_pending = true;
1066
1067 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:191068 return pending_entry_;
1069 return GetLastCommittedEntry();
1070}
1071
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571072int NavigationControllerImpl::GetCurrentEntryIndex() {
[email protected]765b35502008-08-21 00:51:201073 if (pending_entry_index_ != -1)
1074 return pending_entry_index_;
1075 return last_committed_entry_index_;
1076}
1077
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571078NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() {
Rakina Zata Amni46087a12022-11-11 08:28:381079 CHECK_NE(last_committed_entry_index_, -1);
avif16f85a72015-11-13 18:25:031080 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201081}
1082
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571083bool NavigationControllerImpl::CanViewSource() {
Takashi Toyoshima6c58bbd2023-05-19 09:41:351084 const std::string& mime_type = frame_tree_->root()
1085 ->current_frame_host()
1086 ->GetPage()
1087 .GetContentsMimeType();
Kinuko Yasuda74702f92017-07-31 03:27:531088 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
1089 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:271090 NavigationEntry* visible_entry = GetVisibleEntry();
1091 return visible_entry && !visible_entry->IsViewSourceMode() &&
Carlos ILd51e7702020-05-07 18:51:391092 is_viewable_mime_type;
[email protected]31682282010-01-15 18:05:161093}
1094
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571095int NavigationControllerImpl::GetLastCommittedEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:271096 // The last committed entry index must always be less than the number of
Rakina Zata Amnie2d31312022-11-18 03:38:451097 // entries.
arthursonzogni5c4c202d2017-04-25 23:41:271098 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
[email protected]a26023822011-12-29 00:23:551099 return last_committed_entry_index_;
1100}
1101
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571102int NavigationControllerImpl::GetEntryCount() {
Rakina Zata Amnie2d31312022-11-18 03:38:451103 DCHECK_GE(entries_.size(), 1u);
Carlos IL4dea8902020-05-26 15:14:291104 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:551105 return static_cast<int>(entries_.size());
1106}
1107
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571108NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(int index) {
avi25764702015-06-23 15:43:371109 if (index < 0 || index >= GetEntryCount())
1110 return nullptr;
1111
avif16f85a72015-11-13 18:25:031112 return entries_[index].get();
[email protected]022af742011-12-28 18:37:251113}
1114
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571115NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(int offset) {
avi057ce1492015-06-29 15:59:471116 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:201117}
1118
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571119int NavigationControllerImpl::GetIndexForOffset(int offset) {
[email protected]7bc2b032012-12-19 22:45:461120 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:031121}
1122
Arthur Sonzognic686e8f2024-01-11 08:36:371123std::optional<int> NavigationControllerImpl::GetIndexForGoBack() {
Shivani Sharma298d12852019-01-22 20:04:031124 for (int index = GetIndexForOffset(-1); index >= 0; index--) {
Kevin McNee3b3a56192023-03-17 14:40:591125 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
1126 return index;
1127 }
Shivani Sharma298d12852019-01-22 20:04:031128 }
Arthur Sonzognic686e8f2024-01-11 08:36:371129 return std::nullopt;
Kevin McNee3b3a56192023-03-17 14:40:591130}
1131
1132bool NavigationControllerImpl::CanGoBack() {
1133 return GetIndexForGoBack().has_value();
1134}
1135
Arthur Sonzognic686e8f2024-01-11 08:36:371136std::optional<int> NavigationControllerImpl::GetIndexForGoForward() {
Kevin McNee3b3a56192023-03-17 14:40:591137 for (int index = GetIndexForOffset(1); index < GetEntryCount(); index++) {
1138 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
1139 return index;
1140 }
1141 }
Arthur Sonzognic686e8f2024-01-11 08:36:371142 return std::nullopt;
[email protected]765b35502008-08-21 00:51:201143}
1144
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571145bool NavigationControllerImpl::CanGoForward() {
Kevin McNee3b3a56192023-03-17 14:40:591146 return GetIndexForGoForward().has_value();
[email protected]765b35502008-08-21 00:51:201147}
1148
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571149bool NavigationControllerImpl::CanGoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:031150 int index = GetIndexForOffset(offset);
1151 return index >= 0 && index < GetEntryCount();
1152}
1153
Xiaohan Wang7f8052e02022-01-14 18:44:281154#if BUILDFLAG(IS_ANDROID)
WangHui74286d52021-03-31 16:17:151155bool NavigationControllerImpl::CanGoToOffsetWithSkipping(int offset) {
WangHui74286d52021-03-31 16:17:151156 if (offset == 0)
1157 return true;
1158 int increment = offset > 0 ? 1 : -1;
1159 int non_skippable_entries = 0;
1160 for (int index = GetIndexForOffset(increment);
1161 index >= 0 && index < GetEntryCount(); index += increment) {
1162 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
1163 non_skippable_entries++;
1164
1165 if (non_skippable_entries == std::abs(offset))
1166 return true;
1167 }
1168 return false;
1169}
1170#endif
1171
[email protected]d202a7c2012-01-04 07:53:471172void NavigationControllerImpl::GoBack() {
Arthur Sonzognic686e8f2024-01-11 08:36:371173 const std::optional<int> target_index = GetIndexForGoBack();
shivanisha55201872018-12-13 04:29:061174
Kevin McNeeedc481c2023-04-27 22:30:581175 CHECK(target_index.has_value());
Miyoung Shin1c565c912021-03-17 12:11:211176
Kevin McNee3b3a56192023-03-17 14:40:591177 GoToIndex(*target_index);
[email protected]765b35502008-08-21 00:51:201178}
1179
[email protected]d202a7c2012-01-04 07:53:471180void NavigationControllerImpl::GoForward() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:161181 // Note that at least one entry (the last one) will be non-skippable since
1182 // entries are marked skippable only when they add another entry because of
1183 // redirect or pushState.
Arthur Sonzognic686e8f2024-01-11 08:36:371184 const std::optional<int> target_index = GetIndexForGoForward();
Kevin McNee3b3a56192023-03-17 14:40:591185
Kevin McNeeedc481c2023-04-27 22:30:581186 CHECK(target_index.has_value());
Kevin McNee3b3a56192023-03-17 14:40:591187
1188 GoToIndex(*target_index);
[email protected]765b35502008-08-21 00:51:201189}
1190
[email protected]d202a7c2012-01-04 07:53:471191void NavigationControllerImpl::GoToIndex(int index) {
Yoav Weiss8c573952022-11-17 17:35:131192 GoToIndex(index, /*initiator_rfh=*/nullptr,
Arthur Sonzognic686e8f2024-01-11 08:36:371193 /*soft_navigation_heuristics_task_id=*/std::nullopt,
Yoav Weiss8c573952022-11-17 17:35:131194 /*navigation_api_key=*/nullptr);
Dave Tapuska8bfd84c2019-03-26 20:47:161195}
1196
Nate Chapinbf682fa32022-09-26 22:41:201197void NavigationControllerImpl::GoToIndex(
1198 int index,
1199 RenderFrameHostImpl* initiator_rfh,
Arthur Sonzognic686e8f2024-01-11 08:36:371200 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weiss8c573952022-11-17 17:35:131201 soft_navigation_heuristics_task_id,
Nate Chapinbf682fa32022-09-26 22:41:201202 const std::string* navigation_api_key) {
sunjian30574a62017-03-21 21:39:441203 TRACE_EVENT0("browser,navigation,benchmark",
1204 "NavigationControllerImpl::GoToIndex");
Peter Boströmf68fe042023-06-07 18:27:501205 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy_caller1", "GoToIndex_index", index);
1206 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy_caller1", "GoToIndex_size",
1207 entries_.size());
1208 // Indices should have have been validated by the caller.
1209 CHECK_GE(index, 0);
1210 CHECK_LT(static_cast<size_t>(index), entries_.size());
[email protected]765b35502008-08-21 00:51:201211
Rakina Zata Amnif297a802022-01-18 03:53:431212 if (entries_[index]->IsInitialEntryNotForSynchronousAboutBlank()) {
1213 // We should never navigate to an existing initial NavigationEntry that is
1214 // the initial NavigationEntry for the initial empty document that hasn't
1215 // been overridden by the synchronous about:blank commit, to preserve
1216 // legacy behavior where trying to reload when the main frame is on the
1217 // initial empty document won't result in a navigation. See also
1218 // https://crbug.com/1277414.
1219 return;
1220 }
1221
[email protected]cbab76d2008-10-13 22:42:471222 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:201223
arthursonzogni5c4c202d2017-04-25 23:41:271224 DCHECK_EQ(nullptr, pending_entry_);
1225 DCHECK_EQ(-1, pending_entry_index_);
Rakina Zata Amnif297a802022-01-18 03:53:431226
arthursonzogni5c4c202d2017-04-25 23:41:271227 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:201228 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:271229 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
1230 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
Nate Chapinbf682fa32022-09-26 22:41:201231 NavigateToExistingPendingEntry(ReloadType::NONE, initiator_rfh,
Yoav Weiss8c573952022-11-17 17:35:131232 soft_navigation_heuristics_task_id,
Nate Chapinbf682fa32022-09-26 22:41:201233 navigation_api_key);
[email protected]765b35502008-08-21 00:51:201234}
1235
[email protected]d202a7c2012-01-04 07:53:471236void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:121237 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:031238 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:201239 return;
1240
[email protected]9ba14052012-06-22 23:50:031241 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:201242}
1243
Nate Chapinbf682fa32022-09-26 22:41:201244void NavigationControllerImpl::GoToOffsetFromRenderer(
1245 int offset,
Yoav Weiss8c573952022-11-17 17:35:131246 RenderFrameHostImpl* initiator_rfh,
Arthur Sonzognic686e8f2024-01-11 08:36:371247 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weiss8c573952022-11-17 17:35:131248 soft_navigation_heuristics_task_id) {
Nate Chapinbb74c5a52023-07-21 23:13:351249 // Note: This is actually reached in unit tests.
1250 if (!CanGoToOffset(offset))
Nate Chapin45f620582021-09-30 17:45:431251 return;
1252
Nate Chapinbf682fa32022-09-26 22:41:201253 GoToIndex(GetIndexForOffset(offset), initiator_rfh,
Yoav Weiss8c573952022-11-17 17:35:131254 soft_navigation_heuristics_task_id,
1255 /*navigation_api_key=*/nullptr);
Nate Chapin45f620582021-09-30 17:45:431256}
1257
Xiaohan Wang7f8052e02022-01-14 18:44:281258#if BUILDFLAG(IS_ANDROID)
WangHui74286d52021-03-31 16:17:151259void NavigationControllerImpl::GoToOffsetWithSkipping(int offset) {
1260 // Note: This is actually reached in unit tests.
1261 if (!CanGoToOffsetWithSkipping(offset))
1262 return;
1263
Elly Fong-Jonesccc6d1f2021-06-14 18:32:421264 if (offset == 0) {
WangHui74286d52021-03-31 16:17:151265 GoToIndex(GetIndexForOffset(offset));
1266 return;
1267 }
1268 int increment = offset > 0 ? 1 : -1;
1269 // Find the offset without counting skippable entries.
1270 int target_index = GetIndexForOffset(increment);
1271 int non_skippable_entries = 0;
1272 for (int index = target_index; index >= 0 && index < GetEntryCount();
1273 index += increment) {
1274 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
1275 non_skippable_entries++;
1276
1277 if (non_skippable_entries == std::abs(offset)) {
1278 target_index = index;
1279 break;
1280 }
1281 }
1282
1283 GoToIndex(target_index);
1284}
1285#endif
1286
[email protected]41374f12013-07-24 02:49:281287bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
Aran Gilman37d11632019-10-08 23:07:151288 if (index == last_committed_entry_index_ || index == pending_entry_index_)
[email protected]41374f12013-07-24 02:49:281289 return false;
[email protected]6a13a6c2011-12-20 21:47:121290
[email protected]43032342011-03-21 14:10:311291 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:281292 return true;
[email protected]cbab76d2008-10-13 22:42:471293}
1294
Michael Thiessen9b14d512019-09-23 21:19:471295void NavigationControllerImpl::PruneForwardEntries() {
1296 DiscardNonCommittedEntries();
1297 int remove_start_index = last_committed_entry_index_ + 1;
Lei Zhang96031532019-10-10 19:05:471298 int num_removed = static_cast<int>(entries_.size()) - remove_start_index;
Michael Thiessen9b14d512019-09-23 21:19:471299 if (num_removed <= 0)
1300 return;
Nate Chapin9eb16be72022-09-23 22:54:311301 RemovedEntriesTracker tracker(weak_factory_.GetSafeRef());
Michael Thiessen9b14d512019-09-23 21:19:471302 entries_.erase(entries_.begin() + remove_start_index, entries_.end());
1303 NotifyPrunedEntries(this, remove_start_index /* start index */,
1304 num_removed /* count */);
1305}
1306
Aran Gilman37d11632019-10-08 23:07:151307void NavigationControllerImpl::UpdateVirtualURLToURL(NavigationEntryImpl* entry,
1308 const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:321309 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:311310 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:511311 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
1312 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:321313 }
1314}
1315
Harkiran Bolariaba823e42021-05-21 18:30:361316base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURL(
1317 const GURL& url,
1318 const Referrer& referrer,
1319 ui::PageTransition transition,
1320 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:471321 LoadURLParams params(url);
1322 params.referrer = referrer;
1323 params.transition_type = transition;
1324 params.extra_headers = extra_headers;
Harkiran Bolariaba823e42021-05-21 18:30:361325 return LoadURLWithParams(params);
[email protected]cf002332012-08-14 19:17:471326}
1327
Harkiran Bolariaba823e42021-05-21 18:30:361328base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURLWithParams(
1329 const LoadURLParams& params) {
Lukasz Anforowicz435bcb582019-07-12 20:50:061330 if (params.is_renderer_initiated)
1331 DCHECK(params.initiator_origin.has_value());
1332
naskob8744d22014-08-28 17:07:431333 TRACE_EVENT1("browser,navigation",
Aran Gilman37d11632019-10-08 23:07:151334 "NavigationControllerImpl::LoadURLWithParams", "url",
1335 params.url.possibly_invalid_spec());
Ian Vollick9dda0522019-09-11 02:24:291336 bool is_explicit_navigation =
1337 GetContentClient()->browser()->IsExplicitNavigation(
1338 params.transition_type);
1339 if (HandleDebugURL(params.url, params.transition_type,
1340 is_explicit_navigation)) {
[email protected]47752982014-07-29 08:01:431341 // If Telemetry is running, allow the URL load to proceed as if it's
1342 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:491343 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:431344 cc::switches::kEnableGpuBenchmarking))
Harkiran Bolariaba823e42021-05-21 18:30:361345 return nullptr;
[email protected]47752982014-07-29 08:01:431346 }
[email protected]8bf1048012012-02-08 01:22:181347
[email protected]cf002332012-08-14 19:17:471348 // Checks based on params.load_type.
1349 switch (params.load_type) {
1350 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:431351 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:471352 break;
1353 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:261354 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:471355 NOTREACHED() << "Data load must use data scheme.";
Harkiran Bolariaba823e42021-05-21 18:30:361356 return nullptr;
[email protected]cf002332012-08-14 19:17:471357 }
1358 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:461359 }
[email protected]e47ae9472011-10-13 19:48:341360
[email protected]e47ae9472011-10-13 19:48:341361 // The user initiated a load, we don't need to reload anymore.
1362 needs_reload_ = false;
1363
Harkiran Bolariaba823e42021-05-21 18:30:361364 return NavigateWithoutEntry(params);
[email protected]132e281a2012-07-31 18:32:441365}
1366
Charlie Reis4c53a962023-06-21 23:17:531367void NavigationControllerImpl::LoadOriginalRequestURL() {
1368 // If the original request URL is not valid, matches the current URL, or
1369 // involves POST data, then simply reload. The POST check avoids issues with
1370 // sending data to the wrong page.
1371 const GURL& last_committed_url = GetLastCommittedEntry()->GetURL();
1372 const GURL& original_request_url =
1373 GetLastCommittedEntry()->GetOriginalRequestURL();
1374 if (!original_request_url.is_valid() ||
1375 original_request_url == last_committed_url ||
1376 GetLastCommittedEntry()->GetHasPostData()) {
1377 Reload(ReloadType::NORMAL, true);
1378 return;
1379 }
1380
1381 // Otherwise, attempt to load the original request URL without any of the
1382 // other data from the current NavigationEntry, replacing the current entry.
1383 // Loading the original URL is useful in cases such as modifying the user
1384 // agent.
1385 std::unique_ptr<NavigationController::LoadURLParams> load_params =
1386 std::make_unique<NavigationController::LoadURLParams>(
1387 original_request_url);
1388 load_params->should_replace_current_entry = true;
1389 load_params->transition_type = ui::PAGE_TRANSITION_RELOAD;
1390 LoadURLWithParams(*load_params.get());
1391}
1392
Mohamed Abdelhalim833de902019-09-16 17:41:451393bool NavigationControllerImpl::PendingEntryMatchesRequest(
1394 NavigationRequest* request) const {
creisb4dc9332016-03-14 21:39:191395 return pending_entry_ &&
Mohamed Abdelhalim833de902019-09-16 17:41:451396 pending_entry_->GetUniqueID() == request->nav_entry_id();
creisb4dc9332016-03-14 21:39:191397}
1398
[email protected]d202a7c2012-01-04 07:53:471399bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:321400 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071401 const mojom::DidCommitProvisionalLoadParams& params,
peary21b0f797b2016-09-28 17:28:331402 LoadCommittedDetails* details,
Eugene But712f03d2018-05-22 16:03:441403 bool is_same_document_navigation,
Nate Chapinc7019dd7d2021-06-25 18:29:251404 bool was_on_initial_empty_document,
Shivani Sharmaeef521b2024-01-18 13:03:561405 bool previous_document_had_history_intervention_activation,
Camille Lamy10aafcd32018-12-05 15:48:131406 NavigationRequest* navigation_request) {
1407 DCHECK(navigation_request);
Chris Bookholt27faf8d2022-01-20 01:03:331408
1409 // Note: validation checks and renderer kills due to invalid commit messages
1410 // must happen before getting here, in
1411 // RenderFrameHostImpl::ValidateDidCommitParams. By the time we get here, some
1412 // effects of the navigation have already occurred.
1413
[email protected]cd2e15742013-03-08 04:08:311414 is_initial_navigation_ = false;
1415
Wang Hui96ab1012022-10-11 02:05:491416 // Any pending request to repost a form submission is no longer valid, since a
1417 // different NavigationEntry is committing.
1418 pending_reload_ = ReloadType::NONE;
1419
[email protected]0e8db942008-09-24 21:21:481420 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:431421 bool overriding_user_agent_changed = false;
Rakina Zata Amnie2d31312022-11-18 03:38:451422 if (entry_replaced_by_post_commit_error_) {
1423 // Same document navigation events with a post-commit error should already
1424 // be blocked by RenderFrameHostImpl::ValidateDidCommitParams() before
1425 // reaching here.
1426 CHECK(!is_same_document_navigation);
Chris Bookholt27faf8d2022-01-20 01:03:331427
Rakina Zata Amnie2d31312022-11-18 03:38:451428 // Any commit while a post-commit error page is showing should put the
1429 // original entry back, replacing the error page's entry. This includes
1430 // reloads, where the original entry was used as the pending entry and
1431 // should now be at the correct index at commit time.
1432 entries_[last_committed_entry_index_] =
1433 std::move(entry_replaced_by_post_commit_error_);
[email protected]0e8db942008-09-24 21:21:481434 }
Rakina Zata Amnie2d31312022-11-18 03:38:451435 details->previous_main_frame_url = GetLastCommittedEntry()->GetURL();
1436 details->previous_entry_index = GetLastCommittedEntryIndex();
Shu Yang7a3ec532023-06-21 17:49:001437 // Must honor user agent overrides in the |navigation_request|, such as
1438 // from things like RequestDesktopSiteWebContentsObserverAndroid. As a
1439 // result, besides comparing |pending_entry_|'s user agent against
1440 // LastCommittedEntry's, also need to compare |navigation_request|'s user
1441 // agent against LastCommittedEntry's.
1442 if (navigation_request->is_overriding_user_agent() !=
Shu Yang127e41a2023-12-19 01:26:541443 GetLastCommittedEntry()->GetIsOverridingUserAgent() ||
1444 (PendingEntryMatchesRequest(navigation_request) &&
1445 pending_entry_->GetIsOverridingUserAgent() !=
1446 GetLastCommittedEntry()->GetIsOverridingUserAgent())) {
Shu Yang7a3ec532023-06-21 17:49:001447 overriding_user_agent_changed = true;
Rakina Zata Amnie2d31312022-11-18 03:38:451448 }
[email protected]ecd9d8702008-08-28 22:10:171449
Dave Tapuskaa2ab4f252021-07-08 21:31:281450 bool is_main_frame_navigation = !rfh->GetParent();
1451
Alexander Timind2f2e4f22019-04-02 20:04:531452 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1453 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281454 // For primary frame tree navigations, choose an appropriate
Rakina Zata Amni63b5e8092022-05-20 11:25:141455 // BackForwardCacheMetrics to be associated with the new navigation's
1456 // NavigationEntry, by either creating a new object or reusing the previous
1457 // entry's one.
Dave Tapuskaa2ab4f252021-07-08 21:31:281458 scoped_refptr<BackForwardCacheMetrics> back_forward_cache_metrics;
Takashi Toyoshima7c041d82023-09-26 16:09:211459 if (navigation_request->frame_tree_node()->frame_tree().is_primary()) {
Rakina Zata Amni63b5e8092022-05-20 11:25:141460 back_forward_cache_metrics = BackForwardCacheMetrics::
1461 CreateOrReuseBackForwardCacheMetricsForNavigation(
Dave Tapuskaa2ab4f252021-07-08 21:31:281462 GetLastCommittedEntry(), is_main_frame_navigation,
1463 params.document_sequence_number);
1464 }
Yuzu Saijo29f96ca92022-12-08 04:54:121465
Alexander Timind2f2e4f22019-04-02 20:04:531466 // Notify the last active entry that we have navigated away.
Dave Tapuskaa2ab4f252021-07-08 21:31:281467 if (is_main_frame_navigation && !is_same_document_navigation) {
Rakina Zata Amnie2d31312022-11-18 03:38:451468 if (auto* metrics = GetLastCommittedEntry()->back_forward_cache_metrics()) {
1469 metrics->MainFrameDidNavigateAwayFromDocument();
Alexander Timind2f2e4f22019-04-02 20:04:531470 }
1471 }
1472
Rakina Zata Amnifd8370b2022-11-14 13:32:251473 // Use CommonNavigationParam's `should_replace_current_entry` to determine
1474 // whether the current NavigationEntry should be replaced.
Charlie Reisf8cde712022-10-20 16:25:091475 // (See below for a case where we might override that.)
Rakina Zata Amnifd8370b2022-11-14 13:32:251476 details->did_replace_entry =
1477 navigation_request->common_params().should_replace_current_entry;
Charlie Reisf8cde712022-10-20 16:25:091478
fdegans9caf66a2015-07-30 21:10:421479 // If there is a pending entry at this point, it should have a SiteInstance,
Charlie Reisc4155af2022-10-19 15:33:111480 // except for restored entries. This should be true even if the current commit
1481 // is not related to the pending entry.
jam48cea9082017-02-15 06:13:291482 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:481483 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
Lukasz Anforowicz6b75c0d2020-12-01 22:56:081484 pending_entry_->IsRestored());
Charlie Reisc4155af2022-10-19 15:33:111485
1486 // Only make changes based on the pending entry if the NavigationRequest
1487 // matches it. Otherwise, the pending entry may be for a different request
1488 // (e.g., if a slow history navigation is pending while an auto-subframe
1489 // commit occurs).
1490 if (PendingEntryMatchesRequest(navigation_request)) {
1491 // It is no longer necessary to consider the pending entry as restored.
1492 if (pending_entry_->IsRestored()) {
1493 pending_entry_->set_restore_type(RestoreType::kNotRestored);
1494 was_restored = true;
1495 }
[email protected]e9ba4472008-09-14 15:42:431496
Charlie Reisf8cde712022-10-20 16:25:091497 // If the SiteInstance has changed from the matching pending entry, this
1498 // must be treated as a new navigation with replacement. Set the replacement
1499 // bit here and ClassifyNavigation will identify this case and return
1500 // NEW_ENTRY.
1501 if (!rfh->GetParent() && pending_entry_->site_instance() &&
1502 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
1503 DCHECK_NE(-1, pending_entry_index_);
Rakina Zata Amnifd8370b2022-11-14 13:32:251504 // TODO(nasko,creis,rakina): Move this to happen before committing the
1505 // navigation. This is a bit complicated because we don't currently
1506 // set `should_replace_current_entry` for reload/history navigations.
Charlie Reisf8cde712022-10-20 16:25:091507 details->did_replace_entry = true;
1508 }
Nasko Oskovaee2f862018-06-15 00:05:521509 }
[email protected]bcd904482012-02-01 01:54:221510
[email protected]e9ba4472008-09-14 15:42:431511 // Do navigation-type specific actions. These will make and commit an entry.
Miyoung Shin3299cbf2022-11-22 01:41:101512 NavigationType navigation_type =
1513 ClassifyNavigation(rfh, params, navigation_request);
1514 navigation_request->set_navigation_type(navigation_type);
shivanigithub189833f2022-04-27 18:08:451515
Rakina Zata Amnie2d31312022-11-18 03:38:451516 if (ShouldMaintainTrivialSessionHistory(rfh->frame_tree_node())) {
shivanigithub189833f2022-04-27 18:08:451517 // Ensure that this navigation does not add a navigation entry, since
1518 // ShouldMaintainTrivialSessionHistory() means we should not add an entry
1519 // beyond the last committed one. Therefore, `should_replace_current_entry`
1520 // should be set, which replaces the current entry, or this should be a
1521 // reload, which does not create a new entry.
Rakina Zata Amnifd8370b2022-11-14 13:32:251522 DCHECK(navigation_request->common_params().should_replace_current_entry ||
Dominic Farolinoe0f8d7c2023-08-16 15:38:331523 navigation_request->GetReloadType() != ReloadType::NONE);
shivanigithub189833f2022-04-27 18:08:451524 }
1525
Rakina Zata Amnie2d31312022-11-18 03:38:451526 if (GetLastCommittedEntry()->IsInitialEntry()) {
Rakina Zata Amniddf10502022-01-15 02:56:551527 if (rfh->GetParent()) {
Rakina Zata Amni2322f4f82022-01-24 13:24:241528 // This is a subframe navigation on the initial empty document, which used
1529 // to not have a NavigationEntry to attach to. Now it can attach to the
1530 // initial NavigationEntry, and we must ensure that its NavigationEntry
1531 // will keep the "initial NavigationEntry" status and won't append a new
1532 // NavigationEntry (it should always do replacement instead).
1533 // See also https://crbug.com/1277414.
1534 details->should_stay_as_initial_entry = true;
Rakina Zata Amniddf10502022-01-15 02:56:551535 // Subframe navigation on initial NavigationEntry must not append a new
1536 // NavigationEntry (i.e. should not be classified as NEW_SUBFRAME). This
1537 // means every subframe navigation that happens while we're on the initial
1538 // NavigationEntry will always reuse the existing NavigationEntry and
1539 // just update the corresponding FrameNavigationEntry.
Miyoung Shin3299cbf2022-11-22 01:41:101540 DCHECK_EQ(navigation_type, NAVIGATION_TYPE_AUTO_SUBFRAME);
1541 } else if (navigation_type == NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY) {
Rakina Zata Amniddf10502022-01-15 02:56:551542 // This is a navigation that modifies the initial NavigationEntry, either
1543 // for a replacement or a reload. The initial NavigationEntry should
1544 // retain its "initial NavigationEntry" status in this case.
1545 details->should_stay_as_initial_entry = true;
Rakina Zata Amni2322f4f82022-01-24 13:24:241546 } else if (navigation_request->is_synchronous_renderer_commit() &&
Rakina Zata Amnifd8370b2022-11-14 13:32:251547 !navigation_request->IsSameDocument() && !rfh->GetParent()) {
1548 DCHECK(navigation_request->common_params().should_replace_current_entry);
Rakina Zata Amni2322f4f82022-01-24 13:24:241549 // This is a synchronous about:blank navigation on the main frame, which
1550 // used to not create a NavigationEntry when we have no NavigationEntry on
1551 // FrameTree creation. We now have the initial NavigationEntry and are on
1552 // the initial NavigationEntry. To preserve old behavior, we should still
1553 // keep the "initial" status for the new NavigationEntry that we will
1554 // create for this navigation, so that subframe navigations under the
1555 // synchronously committed about:blank document will never append new
1556 // NavigationEntry, and instead will just reuse the initial
1557 // NavigationEntry and modify the corresponding FrameNavigationEntries.
1558 // See also https://crbug.com/1277414.
1559 details->should_stay_as_initial_entry = true;
Rakina Zata Amniddf10502022-01-15 02:56:551560 }
1561 }
1562 DCHECK(!details->should_stay_as_initial_entry ||
1563 GetLastCommittedEntry()->IsInitialEntry());
[email protected]4bf3522c2010-08-19 21:00:201564
eugenebutee08663a2017-04-27 17:43:121565 // is_same_document must be computed before the entry gets committed.
Eugene But712f03d2018-05-22 16:03:441566 details->is_same_document = is_same_document_navigation;
[email protected]b9d4dfdc2013-08-08 00:25:121567
Lucas Furukawa Gadanie3f7e792021-04-22 17:56:071568 details->is_prerender_activation =
1569 navigation_request->IsPrerenderedPageActivation();
Robert Lin540dbd12022-04-28 22:07:241570 details->is_in_active_page = navigation_request->GetRenderFrameHost()
1571 ->GetOutermostMainFrame()
1572 ->IsInPrimaryMainFrame();
Lucas Furukawa Gadanie3f7e792021-04-22 17:56:071573
Peter Boströmd7592132019-01-30 04:50:311574 // Make sure we do not discard the pending entry for a different ongoing
1575 // navigation when a same document commit comes in unexpectedly from the
1576 // renderer. Limit this to a very narrow set of conditions to avoid risks to
1577 // other navigation types. See https://crbug.com/900036.
1578 // TODO(crbug.com/926009): Handle history.pushState() as well.
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061579 bool keep_pending_entry =
1580 is_same_document_navigation &&
Miyoung Shin3299cbf2022-11-22 01:41:101581 navigation_type == NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY &&
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061582 pending_entry_ && !PendingEntryMatchesRequest(navigation_request);
Peter Boströmd7592132019-01-30 04:50:311583
Miyoung Shin3299cbf2022-11-22 01:41:101584 switch (navigation_type) {
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061585 case NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY:
Charlie Reisc0f17d2d2021-01-12 18:52:491586 RendererDidNavigateToNewEntry(
shivanisha41f04c52018-12-12 15:52:051587 rfh, params, details->is_same_document, details->did_replace_entry,
Shivani Sharmaeef521b2024-01-18 13:03:561588 previous_document_had_history_intervention_activation,
1589 navigation_request, details);
[email protected]e9ba4472008-09-14 15:42:431590 break;
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061591 case NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY:
Charlie Reisc0f17d2d2021-01-12 18:52:491592 RendererDidNavigateToExistingEntry(rfh, params, details->is_same_document,
1593 was_restored, navigation_request,
Rakina Zata Amnia4e27222021-12-22 01:05:001594 keep_pending_entry, details);
[email protected]e9ba4472008-09-14 15:42:431595 break;
[email protected]8ff00d72012-10-23 19:12:211596 case NAVIGATION_TYPE_NEW_SUBFRAME:
Shivani Sharmaffb32b82019-04-09 16:58:471597 RendererDidNavigateNewSubframe(
1598 rfh, params, details->is_same_document, details->did_replace_entry,
Shivani Sharmaeef521b2024-01-18 13:03:561599 previous_document_had_history_intervention_activation,
1600 navigation_request, details);
[email protected]e9ba4472008-09-14 15:42:431601 break;
[email protected]8ff00d72012-10-23 19:12:211602 case NAVIGATION_TYPE_AUTO_SUBFRAME:
Antonio Sartori78a749f2020-11-30 12:03:391603 if (!RendererDidNavigateAutoSubframe(
Nate Chapinc7019dd7d2021-06-25 18:29:251604 rfh, params, details->is_same_document,
Rakina Zata Amnia4e27222021-12-22 01:05:001605 was_on_initial_empty_document, navigation_request, details)) {
creisce0ef3572017-01-26 17:53:081606 // We don't send a notification about auto-subframe PageState during
1607 // UpdateStateForFrame, since it looks like nothing has changed. Send
1608 // it here at commit time instead.
1609 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:431610 return false;
creis59d5a47cb2016-08-24 23:57:191611 }
[email protected]e9ba4472008-09-14 15:42:431612 break;
Aran Gilman37d11632019-10-08 23:07:151613 case NAVIGATION_TYPE_UNKNOWN:
[email protected]e9ba4472008-09-14 15:42:431614 NOTREACHED();
Aran Gilman37d11632019-10-08 23:07:151615 break;
[email protected]765b35502008-08-21 00:51:201616 }
1617
[email protected]688aa65c62012-09-28 04:32:221618 // At this point, we know that the navigation has just completed, so
1619 // record the time.
1620 //
1621 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:261622 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:331623 base::Time timestamp =
1624 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
1625 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
danakjf26536bf2020-09-10 00:46:131626 << timestamp.ToDeltaSinceWindowsEpoch().InMicroseconds();
[email protected]688aa65c62012-09-28 04:32:221627
Peter Boströmd7592132019-01-30 04:50:311628 // If we aren't keeping the pending entry, there shouldn't be one at this
1629 // point. Clear it again in case any error cases above forgot to do so.
1630 // TODO(pbos): Consider a CHECK here that verifies that the pending entry has
1631 // been cleared instead of protecting against it.
1632 if (!keep_pending_entry)
Rakina Zata Amniddf10502022-01-15 02:56:551633 DiscardNonCommittedEntriesWithCommitDetails(details);
[email protected]f233e4232013-02-23 00:55:141634
[email protected]e9ba4472008-09-14 15:42:431635 // All committed entries should have nonempty content state so WebKit doesn't
1636 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:471637 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:321638 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:221639 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:441640 active_entry->SetHttpStatusCode(params.http_status_code);
Fergal Daly0686c0e2022-06-28 02:08:141641
Alexander Timind2f2e4f22019-04-02 20:04:531642 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1643 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281644 if (back_forward_cache_metrics &&
1645 !active_entry->back_forward_cache_metrics()) {
Alexander Timind2f2e4f22019-04-02 20:04:531646 active_entry->set_back_forward_cache_metrics(
1647 std::move(back_forward_cache_metrics));
1648 }
Dave Tapuskaa2ab4f252021-07-08 21:31:281649
1650 // `back_forward_cache_metrics()` may return null as we do not record
1651 // back-forward cache metrics for navigations in non-primary frame trees.
1652 if (active_entry->back_forward_cache_metrics()) {
Fergal Daly0686c0e2022-06-28 02:08:141653 // TODO(https://crbug.com/1338089): Remove this.
1654 // These are both only available from details at this point, so we capture
1655 // them here.
1656 SCOPED_CRASH_KEY_NUMBER("BFCacheMismatch", "navigation_type",
Miyoung Shin3299cbf2022-11-22 01:41:101657 navigation_type);
Fergal Daly0686c0e2022-06-28 02:08:141658 SCOPED_CRASH_KEY_BOOL("BFCacheMismatch", "did_replace",
1659 details->did_replace_entry);
Dave Tapuskaa2ab4f252021-07-08 21:31:281660 active_entry->back_forward_cache_metrics()->DidCommitNavigation(
1661 navigation_request,
1662 back_forward_cache_.IsAllowed(navigation_request->GetURL()));
1663 }
naskoc7533512016-05-06 17:01:121664
Charles Reisc0507202017-09-21 00:40:021665 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
1666 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
1667 // A mismatch can occur if the renderer lies or due to a unique name collision
1668 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:121669 FrameNavigationEntry* frame_entry =
1670 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:021671 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
1672 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:031673 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:081674 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
1675 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:031676 DCHECK(params.page_state == frame_entry->page_state());
Nasko Oskovbbcfc0002019-11-20 20:03:201677
1678 // Remember the bindings the renderer process has at this point, so that
1679 // we do not grant this entry additional bindings if we come back to it.
1680 frame_entry->SetBindings(rfh->GetEnabledBindings());
creis4e2ecb72015-06-20 00:46:301681 }
[email protected]132e281a2012-07-31 18:32:441682
[email protected]97d8f0d2013-10-29 16:49:211683 // Once it is committed, we no longer need to track several pieces of state on
1684 // the entry.
naskoc7533512016-05-06 17:01:121685 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131686
[email protected]49bd30e62011-03-22 20:12:591687 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221688 // TODO(creis): This check won't pass for subframes until we create entries
1689 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001690 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421691 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591692
[email protected]e9ba4472008-09-14 15:42:431693 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001694 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001695 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311696 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531697
arthursonzogni7ddc6542021-04-09 09:16:501698 active_entry->SetIsOverridingUserAgent(
1699 navigation_request->is_overriding_user_agent());
Scott Violetc36f7462020-05-06 23:13:031700
[email protected]93f230e02011-06-01 14:40:001701 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291702
aelias100c9192017-01-13 00:01:431703 if (overriding_user_agent_changed)
1704 delegate_->UpdateOverridingUserAgent();
1705
creis03b48002015-11-04 00:54:561706 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1707 // one knows the latest NavigationEntry it is showing (whether it has
1708 // committed anything in this navigation or not). This allows things like
1709 // state and title updates from RenderFrames to apply to the latest relevant
1710 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381711 int nav_entry_id = active_entry->GetUniqueID();
Ali Hijazid87307d2022-11-07 20:15:031712 for (FrameTreeNode* node : frame_tree_->Nodes())
dcheng57e39e22016-01-21 00:25:381713 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
Hayato Ito2c8c08d02021-06-23 03:38:431714
1715 if (navigation_request->IsPrerenderedPageActivation()) {
1716 BroadcastHistoryOffsetAndLength();
1717 // TODO(crbug.com/1222893): Broadcasting happens after the prerendered page
1718 // is activated. As a result, a "prerenderingchange" event listener sees the
1719 // history.length which is not updated yet. We should guarantee that
1720 // history's length and offset should be updated before a
1721 // "prerenderingchange" event listener runs. One possible approach is to use
1722 // the same IPC which "prerenderingchange" uses, and propagate history's
1723 // length and offset together with that.
1724 }
1725
[email protected]e9ba4472008-09-14 15:42:431726 return true;
initial.commit09911bf2008-07-26 23:55:291727}
1728
[email protected]8ff00d72012-10-23 19:12:211729NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321730 RenderFrameHostImpl* rfh,
Rakina Zata Amnif6950d552020-11-24 03:26:101731 const mojom::DidCommitProvisionalLoadParams& params,
Rakina Zata Amni2322f4f82022-01-24 13:24:241732 NavigationRequest* navigation_request) {
Piotr Tworekbad51282020-09-30 19:17:591733 TraceReturnReason<tracing_category::kNavigation> trace_return(
Nasko Oskovae49e292020-08-13 02:08:511734 "ClassifyNavigation");
1735
avi7c6f35e2015-05-08 17:52:381736 if (params.did_create_new_entry) {
Rakina Zata Amni2322f4f82022-01-24 13:24:241737 // A new entry. We may or may not have a corresponding pending entry, and
1738 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001739 if (!rfh->GetParent()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491740 trace_return.set_return_reason("new entry, no parent, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061741 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381742 }
Rakina Zata Amni2322f4f82022-01-24 13:24:241743 // Valid subframe navigation.
Nasko Oskovae49e292020-08-13 02:08:511744 trace_return.set_return_reason("new entry, new subframe");
avi7c6f35e2015-05-08 17:52:381745 return NAVIGATION_TYPE_NEW_SUBFRAME;
1746 }
1747
Charlie Reisc0f17d2d2021-01-12 18:52:491748 // We only clear the session history in tests when navigating to a new entry.
avi7c6f35e2015-05-08 17:52:381749 DCHECK(!params.history_list_was_cleared);
1750
avi39c1edd32015-06-04 20:06:001751 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381752 // All manual subframes would be did_create_new_entry and handled above, so
1753 // we know this is auto.
Rakina Zata Amniacd4df662022-11-15 06:49:081754 trace_return.set_return_reason("subframe, last commmited, auto subframe");
1755 return NAVIGATION_TYPE_AUTO_SUBFRAME;
avi7c6f35e2015-05-08 17:52:381756 }
1757
Rakina Zata Amnif6950d552020-11-24 03:26:101758 const int nav_entry_id = navigation_request->commit_params().nav_entry_id;
1759 if (nav_entry_id == 0) {
avi7c6f35e2015-05-08 17:52:381760 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1761 // create a new page.
1762
Hayato Ito2ae49442021-07-02 02:59:251763 // This main frame navigation is not a history navigation (since
1764 // nav_entry_id is 0), but didn't create a new entry. So this must be a
1765 // reload or a replacement navigation, which will modify the existing entry.
1766 //
Nasko Oskov332593c2018-08-16 17:21:341767 // TODO(nasko): With error page isolation, reloading an existing session
1768 // history entry can result in change of SiteInstance. Check for such a case
Charlie Reisc0f17d2d2021-01-12 18:52:491769 // here and classify it as NEW_ENTRY, as such navigations should be treated
Nasko Oskov332593c2018-08-16 17:21:341770 // as new with replacement.
Nasko Oskovae49e292020-08-13 02:08:511771 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491772 "nav entry 0, last committed, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061773 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381774 }
1775
Charlie Reisf8cde712022-10-20 16:25:091776 if (PendingEntryMatchesRequest(navigation_request)) {
Nasko Oskovaee2f862018-06-15 00:05:521777 // If the SiteInstance of the |pending_entry_| does not match the
1778 // SiteInstance that got committed, treat this as a new navigation with
1779 // replacement. This can happen if back/forward/reload encounters a server
1780 // redirect to a different site or an isolated error page gets successfully
1781 // reloaded into a different SiteInstance.
1782 if (pending_entry_->site_instance() &&
1783 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491784 trace_return.set_return_reason("pending matching nav entry, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061785 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521786 }
creis77c9aa32015-09-25 19:59:421787
Nasko Oskovaee2f862018-06-15 00:05:521788 if (pending_entry_index_ == -1) {
1789 // In this case, we have a pending entry for a load of a new URL but Blink
1790 // didn't do a new navigation (params.did_create_new_entry). First check
1791 // to make sure Blink didn't treat a new cross-process navigation as
1792 // inert, and thus set params.did_create_new_entry to false. In that case,
Charlie Reis7e2cb6d2021-01-26 01:27:161793 // we must treat it as NEW rather than the converted reload case below,
1794 // since the new SiteInstance doesn't match the last committed entry.
Rakina Zata Amnie2d31312022-11-18 03:38:451795 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance()) {
Charlie Reis7e2cb6d2021-01-26 01:27:161796 trace_return.set_return_reason("new pending, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061797 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521798 }
1799
1800 // Otherwise, this happens when you press enter in the URL bar to reload.
Charlie Reis7e2cb6d2021-01-26 01:27:161801 // We will create a pending entry, but NavigateWithoutEntry will convert
1802 // it to a reload since it's the same page and not create a new entry for
1803 // it. (The user doesn't want to have a new back/forward entry when they
1804 // do this.) Therefore we want to just ignore the pending entry and go
1805 // back to where we were (the "existing entry").
1806 trace_return.set_return_reason("new pending, existing (same) entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061807 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521808 }
avi7c6f35e2015-05-08 17:52:381809 }
1810
Rakina Zata Amni153d5702021-09-13 22:48:001811 if (navigation_request->commit_params().intended_as_new_entry) {
avi7c6f35e2015-05-08 17:52:381812 // This was intended to be a navigation to a new entry but the pending entry
Charlie Reisc0f17d2d2021-01-12 18:52:491813 // got cleared in the meanwhile. Classify as EXISTING_ENTRY because we may
1814 // or may not have a pending entry.
Charlie Reis7e2cb6d2021-01-26 01:27:161815 trace_return.set_return_reason("intended as new entry, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061816 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381817 }
1818
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121819 if (navigation_request->DidEncounterError() &&
1820 failed_pending_entry_id_ != 0 &&
Rakina Zata Amnif6950d552020-11-24 03:26:101821 nav_entry_id == failed_pending_entry_id_) {
avi7c6f35e2015-05-08 17:52:381822 // If the renderer was going to a new pending entry that got cleared because
1823 // of an error, this is the case of the user trying to retry a failed load
Charlie Reisc0f17d2d2021-01-12 18:52:491824 // by pressing return. Classify as EXISTING_ENTRY because we probably don't
avi7c6f35e2015-05-08 17:52:381825 // have a pending entry.
Nasko Oskovae49e292020-08-13 02:08:511826 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491827 "unreachable, matching pending, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061828 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381829 }
1830
Charlie Reisc0f17d2d2021-01-12 18:52:491831 // Now we know that the notification is for an existing entry; find it.
Rakina Zata Amnif6950d552020-11-24 03:26:101832 int existing_entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
Nasko Oskovae49e292020-08-13 02:08:511833 trace_return.traced_value()->SetInteger("existing_entry_index",
1834 existing_entry_index);
avi7c6f35e2015-05-08 17:52:381835 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441836 // The renderer has committed a navigation to an entry that no longer
1837 // exists. Because the renderer is showing that page, resurrect that entry.
Charlie Reisc0f17d2d2021-01-12 18:52:491838 trace_return.set_return_reason("existing entry -1, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061839 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381840 }
1841
avi7c6f35e2015-05-08 17:52:381842 // Since we weeded out "new" navigations above, we know this is an existing
1843 // (back/forward) navigation.
Charlie Reisc0f17d2d2021-01-12 18:52:491844 trace_return.set_return_reason("default return, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061845 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381846}
1847
Rakina Zata Amni3460d382021-10-29 00:43:371848void NavigationControllerImpl::UpdateNavigationEntryDetails(
1849 NavigationEntryImpl* entry,
1850 RenderFrameHostImpl* rfh,
1851 const mojom::DidCommitProvisionalLoadParams& params,
1852 NavigationRequest* request,
1853 NavigationEntryImpl::UpdatePolicy update_policy,
Rakina Zata Amnia4e27222021-12-22 01:05:001854 bool is_new_entry,
1855 LoadCommittedDetails* commit_details) {
Rakina Zata Amni3460d382021-10-29 00:43:371856 // Update the FrameNavigationEntry.
Rakina Zata Amniafd3c6582021-11-30 06:19:171857 std::vector<GURL> redirects;
Rakina Zata Amni3460d382021-10-29 00:43:371858 entry->AddOrUpdateFrameEntry(
1859 rfh->frame_tree_node(), update_policy, params.item_sequence_number,
Domenic Denicolacc094fb2022-03-16 23:40:571860 params.document_sequence_number, params.navigation_api_key,
Rakina Zata Amni3460d382021-10-29 00:43:371861 rfh->GetSiteInstance(), nullptr, params.url,
1862 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amniafd3c6582021-11-30 06:19:171863 Referrer(*params.referrer),
1864 request ? request->common_params().initiator_origin : params.origin,
Arthur Sonzognic686e8f2024-01-11 08:36:371865 request ? request->common_params().initiator_base_url : std::nullopt,
Rakina Zata Amniafd3c6582021-11-30 06:19:171866 request ? request->GetRedirectChain() : redirects, params.page_state,
1867 params.method, params.post_id, nullptr /* blob_url_loader_factory */,
Rakina Zata Amni3460d382021-10-29 00:43:371868 ComputePolicyContainerPoliciesForFrameEntry(
Rakina Zata Amniafd3c6582021-11-30 06:19:171869 rfh, request && request->IsSameDocument(),
1870 request ? request->common_params().url : params.url));
Rakina Zata Amni3460d382021-10-29 00:43:371871
1872 if (rfh->GetParent()) {
1873 // Only modify the NavigationEntry for main frame navigations.
1874 return;
1875 }
1876 if (entry->update_virtual_url_with_url())
1877 UpdateVirtualURLToURL(entry, params.url);
1878 // Don't use the page type from the pending entry. Some interstitial page
1879 // may have set the type to interstitial. Once we commit, however, the page
1880 // type must always be normal or error.
Rakina Zata Amniafd3c6582021-11-30 06:19:171881 entry->set_page_type((request && request->DidEncounterError())
1882 ? PAGE_TYPE_ERROR
1883 : PAGE_TYPE_NORMAL);
Rakina Zata Amnif297a802022-01-18 03:53:431884 if (commit_details && commit_details->should_stay_as_initial_entry) {
1885 // Retain the "initial NavigationEntry" status.
1886 if (request->IsSameDocument()) {
1887 // If this is for a same-document navigation, the NavigationEntry must be
1888 // reused and should already be marked as the initial NavigationEntry.
1889 DCHECK(entry->IsInitialEntry());
1890 } else {
1891 // If this is for a cross-document navigation, it can be caused by a
1892 // renderer-initiated reload, or the synchronous about:blank commit. Mark
1893 // "for synchronous about:blank" in the latter case, and also when it is
1894 // reloading a "for synchronous about:blank" entry. Otherwise, the entry
1895 // is not for a synchronous about:blank commit.
1896 NavigationEntryImpl::InitialNavigationEntryState new_state =
1897 NavigationEntryImpl::InitialNavigationEntryState::
1898 kInitialNotForSynchronousAboutBlank;
1899 if (entry->IsInitialEntryForSynchronousAboutBlank() ||
1900 request->is_synchronous_renderer_commit()) {
1901 new_state = NavigationEntryImpl::InitialNavigationEntryState::
1902 kInitialForSynchronousAboutBlank;
1903 }
1904 entry->set_initial_navigation_entry_state(new_state);
1905 }
1906 } else if (commit_details && !commit_details->should_stay_as_initial_entry) {
1907 // Remove the "initial NavigationEntry" status.
1908 entry->set_initial_navigation_entry_state(
1909 NavigationEntryImpl::InitialNavigationEntryState::kNonInitial);
Rakina Zata Amnia4e27222021-12-22 01:05:001910 }
Rakina Zata Amniddf10502022-01-15 02:56:551911
Rakina Zata Amni3460d382021-10-29 00:43:371912 if (is_new_entry) {
1913 // Some properties of the NavigationEntry are only set when the entry is
1914 // new (we aren't reusing it).
1915 entry->SetTransitionType(params.transition);
Rakina Zata Amniafd3c6582021-11-30 06:19:171916 entry->SetOriginalRequestURL(request ? request->GetOriginalRequestURL()
Peter Kasting8104ba82024-01-31 15:23:401917 : GURL());
Adithya Srinivasan72b07352023-12-21 15:56:011918 DCHECK_EQ(rfh->GetPage().is_overriding_user_agent(),
1919 params.is_overriding_user_agent);
Rakina Zata Amni3460d382021-10-29 00:43:371920 entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
1921 } else {
1922 // We are reusing the NavigationEntry. The site instance will normally be
1923 // the same except for a few cases:
1924 // 1) session restore, when no site instance will be assigned or
1925 // 2) redirect, when the site instance is reset.
1926 DCHECK(!entry->site_instance() || !entry->GetRedirectChain().empty() ||
1927 entry->site_instance() == rfh->GetSiteInstance());
1928 }
1929}
1930
Rakina Zata Amniafd3c6582021-11-30 06:19:171931void NavigationControllerImpl::CreateInitialEntry() {
1932 DCHECK_EQ(entries_.size(), 0u);
Ali Hijazid87307d2022-11-07 20:15:031933 RenderFrameHostImpl* rfh = frame_tree_->root()->current_frame_host();
Rakina Zata Amniafd3c6582021-11-30 06:19:171934 auto params = mojom::DidCommitProvisionalLoadParams::New();
1935 // The initial NavigationEntry's URL is the empty URL. This preserves the old
1936 // behavior of WebContent's GetLastCommittedURL() and GetVisibleURL() from
1937 // before we have initial NavigationEntries.
Peter Kasting8104ba82024-01-31 15:23:401938 params->url = GURL();
Rakina Zata Amniafd3c6582021-11-30 06:19:171939 params->http_status_code = 0;
1940 params->url_is_unreachable = false;
1941 params->method = "GET";
Rakina Zata Amniafd3c6582021-11-30 06:19:171942 params->post_id = -1;
1943 params->embedding_token = base::UnguessableToken::Create();
1944 params->navigation_token = base::UnguessableToken::Create();
1945 params->did_create_new_entry = true;
1946 params->origin = rfh->GetLastCommittedOrigin();
1947 params->should_update_history = true;
1948 params->item_sequence_number = 0;
1949 params->document_sequence_number = 0;
Abhijeet Kandalkare26014a92022-10-13 04:21:151950 bool is_in_fenced_frame_tree = rfh->IsNestedWithinFencedFrame();
Rakina Zata Amniafd3c6582021-11-30 06:19:171951 params->transition = is_in_fenced_frame_tree
1952 ? ui::PAGE_TRANSITION_AUTO_SUBFRAME
1953 : ui::PAGE_TRANSITION_LINK;
1954 params->referrer = blink::mojom::Referrer::New();
1955
Rakina Zata Amniafd3c6582021-11-30 06:19:171956 auto new_entry = std::make_unique<NavigationEntryImpl>(
1957 rfh->GetSiteInstance(), params->url, Referrer(*params->referrer),
W. James MacLean78e2f872023-01-24 17:59:381958 rfh->GetLastCommittedOrigin(), rfh->GetInheritedBaseUrl(),
W. James MacLean23e90a12022-12-21 04:38:211959 std::u16string() /* title */, ui::PAGE_TRANSITION_TYPED,
1960 false /* renderer_initiated */, nullptr /* blob_url_loader_factory */,
1961 true /* is_initial_entry */);
Rakina Zata Amniafd3c6582021-11-30 06:19:171962 UpdateNavigationEntryDetails(
1963 new_entry.get(), rfh, *params, nullptr /* request */,
Rakina Zata Amnia4e27222021-12-22 01:05:001964 NavigationEntryImpl::UpdatePolicy::kUpdate, true /* is_new_entry */,
1965 nullptr /* commit_details */);
Rakina Zata Amniafd3c6582021-11-30 06:19:171966
1967 InsertOrReplaceEntry(std::move(new_entry), false /* replace_entry */,
1968 false /* was_post_commit_error */,
Rakina Zata Amnia4e27222021-12-22 01:05:001969 is_in_fenced_frame_tree, nullptr /* commit_details */);
Rakina Zata Amniafd3c6582021-11-30 06:19:171970}
1971
Charlie Reisc0f17d2d2021-01-12 18:52:491972void NavigationControllerImpl::RendererDidNavigateToNewEntry(
creis3da03872015-02-20 21:12:321973 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071974 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361975 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441976 bool replace_entry,
Shivani Sharmaeef521b2024-01-18 13:03:561977 bool previous_document_had_history_intervention_activation,
Rakina Zata Amnia4e27222021-12-22 01:05:001978 NavigationRequest* request,
1979 LoadCommittedDetails* commit_details) {
dcheng9bfa5162016-04-09 01:00:571980 std::unique_ptr<NavigationEntryImpl> new_entry;
Arthur Sonzognic686e8f2024-01-11 08:36:371981 const std::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:451982 request->common_params().initiator_origin;
Arthur Sonzognic686e8f2024-01-11 08:36:371983 std::optional<GURL> initiator_base_url;
W. James MacLean8be423a2023-03-31 21:35:521984 if (params.url.IsAboutBlank() || params.url.IsAboutSrcdoc()) {
1985 initiator_base_url = request->common_params().initiator_base_url;
1986 }
Lukasz Anforowicz435bcb582019-07-12 20:50:061987
creisf49dfc92016-07-26 17:05:181988 // First check if this is an in-page navigation. If so, clone the current
1989 // entry instead of looking at the pending entry, because the pending entry
1990 // does not have any subframe history items.
Rakina Zata Amnie2d31312022-11-18 03:38:451991 if (is_same_document) {
Nate Chapin63db0d12022-01-20 22:03:301992 FrameNavigationEntry* previous_frame_entry =
1993 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
Patrick Monette50e8bd82019-06-13 22:40:451994 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:481995 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Domenic Denicolacc094fb2022-03-16 23:40:571996 params.document_sequence_number, params.navigation_api_key,
Nate Chapinfbfe5af2021-06-10 17:22:081997 rfh->GetSiteInstance(), nullptr, params.url,
1998 GetCommittedOriginForFrameEntry(params, request),
W. James MacLean23e90a12022-12-21 04:38:211999 Referrer(*params.referrer), initiator_origin, initiator_base_url,
Rakina Zata Amni82fafba2021-03-11 07:07:092000 request->GetRedirectChain(), params.page_state, params.method,
2001 params.post_id, nullptr /* blob_url_loader_factory */,
Antonio Sartori78a749f2020-11-30 12:03:392002 // We will set the document policies later in this function.
Nate Chapin63db0d12022-01-20 22:03:302003 nullptr /* policy_container_policies */,
Domenic Denicolacc094fb2022-03-16 23:40:572004 // Try to preserve protect_url_in_navigation_api from the previous
Nate Chapin63db0d12022-01-20 22:03:302005 // FrameNavigationEntry.
2006 previous_frame_entry &&
Domenic Denicolacc094fb2022-03-16 23:40:572007 previous_frame_entry->protect_url_in_navigation_api());
Charles Reisf44482022017-10-13 21:15:032008
creisf49dfc92016-07-26 17:05:182009 new_entry = GetLastCommittedEntry()->CloneAndReplace(
Ali Hijazid87307d2022-11-07 20:15:032010 frame_entry, true, request->frame_tree_node(), frame_tree_->root());
Mike West800532c2021-10-14 09:26:522011 if (new_entry->GetURL().DeprecatedGetOriginAsURL() !=
2012 params.url.DeprecatedGetOriginAsURL()) {
jama78746e2017-02-22 17:21:572013 // TODO(jam): we had one report of this with a URL that was redirecting to
2014 // only tildes. Until we understand that better, don't copy the cert in
2015 // this case.
2016 new_entry->GetSSL() = SSLStatus();
2017 }
creisf49dfc92016-07-26 17:05:182018
Patrick Monette50e8bd82019-06-13 22:40:452019 // It is expected that |frame_entry| is now owned by |new_entry|. This means
2020 // that |frame_entry| should now have a reference count of exactly 2: one
2021 // due to the local variable |frame_entry|, and another due to |new_entry|
2022 // also retaining one. This should never fail, because it's the main frame.
2023 CHECK(!frame_entry->HasOneRef() && frame_entry->HasAtLeastOneRef());
creisf49dfc92016-07-26 17:05:182024 }
2025
Harkiran Bolaria59290d62021-03-17 01:53:012026 // If this is an activation navigation from a prerendered page, transfer the
2027 // new entry from an entry already created and stored in the
2028 // NavigationRequest. |new_entry| will not have been set prior to this as
2029 // |is_same_document| is mutually exclusive with
2030 // |IsPrerenderedPageActivation|.
2031 if (request->IsPrerenderedPageActivation()) {
2032 DCHECK(!is_same_document);
2033 DCHECK(!new_entry);
2034 new_entry = request->TakePrerenderNavigationEntry();
2035 DCHECK(new_entry);
2036 }
2037
Charlie Reisc0f17d2d2021-01-12 18:52:492038 // Only make a copy of the pending entry if it is appropriate for the new
2039 // document that just loaded. Verify this by checking if the entry corresponds
Mohamed Abdelhalim833de902019-09-16 17:41:452040 // to the given NavigationRequest. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:042041 // 1. The SiteInstance hasn't been assigned to something else.
2042 // 2. The pending entry was intended as a new entry, rather than being a
2043 // history navigation that was interrupted by an unrelated,
2044 // renderer-initiated navigation.
2045 // TODO(csharrison): Investigate whether we can remove some of the coarser
2046 // checks.
Mohamed Abdelhalim833de902019-09-16 17:41:452047 if (!new_entry && PendingEntryMatchesRequest(request) &&
2048 pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:342049 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:432050 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:352051 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:432052
Camille Lamy62b826012019-02-26 09:15:472053 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452054 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
creisf49dfc92016-07-26 17:05:182055 }
2056
Charlie Reisc0f17d2d2021-01-12 18:52:492057 // For cross-document commits with no matching pending entry, create a new
2058 // entry.
creisf49dfc92016-07-26 17:05:182059 if (!new_entry) {
Lukasz Anforowicz435bcb582019-07-12 20:50:062060 new_entry = std::make_unique<NavigationEntryImpl>(
arthursonzogni73fe3212020-11-17 13:24:072061 rfh->GetSiteInstance(), params.url, Referrer(*params.referrer),
W. James MacLean23e90a12022-12-21 04:38:212062 initiator_origin, initiator_base_url,
Jan Wilken Dörrieaace0cfef2021-03-11 22:01:582063 std::u16string(), // title
Mohamed Abdelhalim833de902019-09-16 17:41:452064 params.transition, request->IsRendererInitiated(),
Rakina Zata Amniafd3c6582021-11-30 06:19:172065 nullptr, // blob_url_loader_factory
2066 false); // is_initial_entry
[email protected]f8f93eb2012-09-25 03:06:242067
2068 // Find out whether the new entry needs to update its virtual URL on URL
2069 // change and set up the entry accordingly. This is needed to correctly
2070 // update the virtual URL when replaceState is called after a pushState.
2071 GURL url = params.url;
2072 bool needs_update = false;
Charlie Reisc0f17d2d2021-01-12 18:52:492073 // When navigating to a new entry, give the browser URL handler a chance to
[email protected]f1eb87a2011-05-06 17:49:412074 // update the virtual URL based on the new URL. For example, this is needed
2075 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
2076 // the URL.
Rakina Zata Amni3460d382021-10-29 00:43:372077 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
2078 &url, browser_context_, &needs_update);
2079 new_entry->set_update_virtual_url_with_url(needs_update);
2080
Camille Lamy62b826012019-02-26 09:15:472081 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452082 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
[email protected]e9ba4472008-09-14 15:42:432083 }
2084
Harkiran Bolaria59290d62021-03-17 01:53:012085 // TODO(crbug.com/1179428) - determine which parts of the entry need to be set
2086 // for prerendered contents, if any. This is because prerendering/activation
2087 // technically won't be creating a new document. Unlike BFCache, prerendering
2088 // creates a new NavigationEntry rather than using an existing one.
2089 if (!request->IsPrerenderedPageActivation()) {
Rakina Zata Amni3460d382021-10-29 00:43:372090 UpdateNavigationEntryDetails(new_entry.get(), rfh, params, request,
2091 NavigationEntryImpl::UpdatePolicy::kUpdate,
Rakina Zata Amnia4e27222021-12-22 01:05:002092 true /* is_new_entry */, commit_details);
creis8b5cd4c2015-06-19 00:11:082093
Harkiran Bolaria59290d62021-03-17 01:53:012094 // history.pushState() is classified as a navigation to a new page, but sets
2095 // is_same_document to true. In this case, we already have the title and
2096 // favicon available, so set them immediately.
Rakina Zata Amnie2d31312022-11-18 03:38:452097 if (is_same_document) {
Harkiran Bolaria59290d62021-03-17 01:53:012098 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
2099 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
2100 }
[email protected]3a868f212014-08-09 10:41:192101 }
[email protected]ff64b3e2014-05-31 04:07:332102
[email protected]60d6cca2013-04-30 08:47:132103 DCHECK(!params.history_list_was_cleared || !replace_entry);
2104 // The browser requested to clear the session history when it initiated the
2105 // navigation. Now we know that the renderer has updated its state accordingly
2106 // and it is safe to also clear the browser side history.
2107 if (params.history_list_was_cleared) {
Rakina Zata Amniddf10502022-01-15 02:56:552108 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]60d6cca2013-04-30 08:47:132109 entries_.clear();
2110 last_committed_entry_index_ = -1;
2111 }
2112
Nasko Oskovaee2f862018-06-15 00:05:522113 // If this is a new navigation with replacement and there is a
2114 // pending_entry_ which matches the navigation reported by the renderer
2115 // process, then it should be the one replaced, so update the
2116 // last_committed_entry_index_ to use it.
2117 if (replace_entry && pending_entry_index_ != -1 &&
Charlie Reisf8cde712022-10-20 16:25:092118 PendingEntryMatchesRequest(request)) {
Nasko Oskovaee2f862018-06-15 00:05:522119 last_committed_entry_index_ = pending_entry_index_;
2120 }
2121
Alexander Timine3ec4192020-04-20 16:39:402122 SetShouldSkipOnBackForwardUIIfNeeded(
Shivani Sharmaeef521b2024-01-18 13:03:562123 replace_entry, previous_document_had_history_intervention_activation,
Alexander Timine3ec4192020-04-20 16:39:402124 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
shivanisha41f04c52018-12-12 15:52:052125
Yuzu Saijoa725585f2022-11-28 04:14:032126 // If this is a history navigation and the old entry has an existing
2127 // back/forward cache metrics object, keep using the old one so that the
2128 // reasons logged from the last time the page navigated gets preserved.
2129 if (BackForwardCacheMetrics::IsCrossDocumentMainFrameHistoryNavigation(
2130 request)) {
2131 // Use |request->GetNavigationEntry()| instead of |pending_entry_| here
2132 // because some tests do not have a pending entry.
2133 NavigationEntryImpl* entry =
2134 static_cast<NavigationEntryImpl*>(request->GetNavigationEntry());
2135 if (entry && entry->back_forward_cache_metrics()) {
2136 scoped_refptr<BackForwardCacheMetrics> metrics =
2137 entry->TakeBackForwardCacheMetrics();
2138 new_entry->set_back_forward_cache_metrics(std::move(metrics));
2139 }
2140 }
2141
Carlos IL42b416592019-10-07 23:10:362142 InsertOrReplaceEntry(std::move(new_entry), replace_entry,
Dave Tapuska87696ae2021-11-18 18:48:312143 !request->post_commit_error_page_html().empty(),
Abhijeet Kandalkare26014a92022-10-13 04:21:152144 rfh->IsNestedWithinFencedFrame(), commit_details);
[email protected]e9ba4472008-09-14 15:42:432145}
2146
Charlie Reisc0f17d2d2021-01-12 18:52:492147void NavigationControllerImpl::RendererDidNavigateToExistingEntry(
creis3da03872015-02-20 21:12:322148 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072149 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:362150 bool is_same_document,
jam48cea9082017-02-15 06:13:292151 bool was_restored,
Mohamed Abdelhalim833de902019-09-16 17:41:452152 NavigationRequest* request,
Rakina Zata Amnia4e27222021-12-22 01:05:002153 bool keep_pending_entry,
2154 LoadCommittedDetails* commit_details) {
creis26d22632017-04-21 20:23:562155 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
2156 << "that a last committed entry exists.";
2157
[email protected]e9ba4472008-09-14 15:42:432158 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:002159 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:432160
Charlie Reis7e2cb6d2021-01-26 01:27:162161 NavigationEntryImpl* entry = nullptr;
Rakina Zata Amni153d5702021-09-13 22:48:002162 if (request->commit_params().intended_as_new_entry) {
Charlie Reis7e2cb6d2021-01-26 01:27:162163 // We're guaranteed to have a last committed entry if intended_as_new_entry
2164 // is true.
avicbdc4c12015-07-01 16:07:112165 entry = GetLastCommittedEntry();
Charlie Reis7e2cb6d2021-01-26 01:27:162166
2167 // If the NavigationRequest matches a new pending entry and is classified as
2168 // EXISTING_ENTRY, then it is a navigation to the same URL that was
2169 // converted to a reload, such as a user pressing enter in the omnibox.
Charlie Reisf8cde712022-10-20 16:25:092170 if (pending_entry_index_ == -1 && PendingEntryMatchesRequest(request)) {
Charlie Reis7e2cb6d2021-01-26 01:27:162171 // Note: The pending entry will usually have a real ReloadType here, but
2172 // it can still be ReloadType::NONE in cases that
2173 // ShouldTreatNavigationAsReload returns false (e.g., POST, view-source).
2174
2175 // If we classified this correctly, the SiteInstance should not have
2176 // changed.
2177 CHECK_EQ(entry->site_instance(), rfh->GetSiteInstance());
2178
2179 // For converted reloads, we assign the entry's unique ID to be that of
2180 // the new one. Since this is always the result of a user action, we want
2181 // to dismiss infobars, etc. like a regular user-initiated navigation.
2182 entry->set_unique_id(pending_entry_->GetUniqueID());
2183
2184 // The extra headers may have changed due to reloading with different
2185 // headers.
2186 entry->set_extra_headers(pending_entry_->extra_headers());
2187 }
2188 // Otherwise, this was intended as a new entry but the pending entry was
2189 // lost in the meantime and no new entry was created. We are stuck at the
2190 // last committed entry.
2191
2192 // Even if this is a converted reload from pressing enter in the omnibox,
2193 // the server could redirect, requiring an update to the SSL status. If this
2194 // is a same document navigation, though, there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:452195 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
Charlie Reis7e2cb6d2021-01-26 01:27:162196 if (!is_same_document) {
Camille Lamy62b826012019-02-26 09:15:472197 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452198 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
Charlie Reis7e2cb6d2021-01-26 01:27:162199 }
Rakina Zata Amnif6950d552020-11-24 03:26:102200 } else if (const int nav_entry_id = request->commit_params().nav_entry_id) {
avicbdc4c12015-07-01 16:07:112201 // This is a browser-initiated navigation (back/forward/reload).
Rakina Zata Amnif6950d552020-11-24 03:26:102202 entry = GetEntryWithUniqueID(nav_entry_id);
jamd208b90ce2016-09-01 16:58:162203
eugenebut604866f2017-05-10 21:35:362204 if (is_same_document) {
Mohamed Abdelhalim833de902019-09-16 17:41:452205 // There's no SSLStatus in the NavigationRequest for same document
eugenebut604866f2017-05-10 21:35:362206 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
2207 // this was a restored same document navigation entry, then it won't have
2208 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
2209 // navigated it.
jam48cea9082017-02-15 06:13:292210 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
Mike West800532c2021-10-14 09:26:522211 if (entry->GetURL().DeprecatedGetOriginAsURL() ==
2212 last_entry->GetURL().DeprecatedGetOriginAsURL() &&
jam48cea9082017-02-15 06:13:292213 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
2214 was_restored) {
2215 entry->GetSSL() = last_entry->GetSSL();
2216 }
2217 } else {
Mohamed Abdelhalim833de902019-09-16 17:41:452218 // In rapid back/forward navigations |request| sometimes won't have a cert
2219 // (http://crbug.com/727892). So we use the request's cert if it exists,
John Abd-El-Malek3f247082017-12-07 19:02:192220 // otherwise we only reuse the existing cert if the origins match.
Mohamed Abdelhalim833de902019-09-16 17:41:452221 if (request->GetSSLInfo().has_value() &&
2222 request->GetSSLInfo()->is_valid()) {
2223 entry->GetSSL() = SSLStatus(*(request->GetSSLInfo()));
Mike West800532c2021-10-14 09:26:522224 } else if (entry->GetURL().DeprecatedGetOriginAsURL() !=
2225 request->GetURL().DeprecatedGetOriginAsURL()) {
John Abd-El-Malek3f247082017-12-07 19:02:192226 entry->GetSSL() = SSLStatus();
2227 }
jam48cea9082017-02-15 06:13:292228 }
avicbdc4c12015-07-01 16:07:112229 } else {
Feifei Wang2ab8ba6c2022-04-13 22:19:272230 // This is renderer-initiated. The only kinds of renderer-initiated
Rakina Zata Amni557afb92021-07-17 04:39:572231 // navigations that are EXISTING_ENTRY are same-document navigations that
2232 // result in replacement (e.g. history.replaceState(), location.replace(),
2233 // forced replacements for trivial session history contexts). For these
2234 // cases, we reuse the last committed entry.
avicbdc4c12015-07-01 16:07:112235 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:102236
Mikel Astizba9cf2fd2017-12-17 10:38:102237 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
2238 // to avoid misleading interpretations (e.g. URLs paired with
2239 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
2240 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
2241 // | PAGE_TRANSITION_CLIENT_REDIRECT).
2242
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572243 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(entry, entry);
Mikel Astizba9cf2fd2017-12-17 10:38:102244
eugenebut604866f2017-05-10 21:35:362245 // If this is a same document navigation, then there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:452246 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:362247 if (!is_same_document)
Camille Lamy62b826012019-02-26 09:15:472248 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452249 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
avicbdc4c12015-07-01 16:07:112250 }
2251 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:432252
Rakina Zata Amni3460d382021-10-29 00:43:372253 UpdateNavigationEntryDetails(entry, rfh, params, request,
2254 NavigationEntryImpl::UpdatePolicy::kUpdate,
Rakina Zata Amnia4e27222021-12-22 01:05:002255 false /* is_new_entry */, commit_details);
creis22a7b4c2016-04-28 07:20:302256
[email protected]5ccd4dc2012-10-24 02:28:142257 // The redirected to page should not inherit the favicon from the previous
2258 // page.
eugenebut604866f2017-05-10 21:35:362259 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:482260 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:142261
Charlie Reis951f43372023-05-05 00:30:072262 // Update the last committed index to reflect the committed entry. Do this
2263 // before calling DiscardNonCommittedEntriesWithCommitDetails, so that the
2264 // delegate sees the correct committed index when notified of navigation
2265 // state changes. (Otherwise CanGoBack may incorrectly return true, as in
2266 // https://crbug.com/1439948.)
Charlie Reisfbe5f1022023-10-03 15:21:212267 last_committed_entry_index_ = GetIndexOfEntry(entry);
Charlie Reis951f43372023-05-05 00:30:072268
Peter Boströmd7592132019-01-30 04:50:312269 // We should also usually discard the pending entry if it corresponds to a
2270 // different navigation, since that one is now likely canceled. In rare
2271 // cases, we leave the pending entry for another navigation in place when we
2272 // know it is still ongoing, to avoid a flicker in the omnibox (see
2273 // https://crbug.com/900036).
[email protected]e9ba4472008-09-14 15:42:432274 //
2275 // Note that we need to use the "internal" version since we don't want to
2276 // actually change any other state, just kill the pointer.
Peter Boströmd7592132019-01-30 04:50:312277 if (!keep_pending_entry)
Rakina Zata Amnia4e27222021-12-22 01:05:002278 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]e9ba4472008-09-14 15:42:432279}
2280
[email protected]d202a7c2012-01-04 07:53:472281void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:322282 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072283 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:362284 bool is_same_document,
Shivani Sharmaffb32b82019-04-09 16:58:472285 bool replace_entry,
Shivani Sharmaeef521b2024-01-18 13:03:562286 bool previous_document_had_history_intervention_activation,
Rakina Zata Amnia4e27222021-12-22 01:05:002287 NavigationRequest* request,
2288 LoadCommittedDetails* commit_details) {
avi25f5f9e2015-07-17 20:08:262289 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
2290 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
Rakina Zata Amniddf10502022-01-15 02:56:552291 // The NEW_SUBFRAME path should never result in an initial NavigationEntry.
2292 DCHECK(!commit_details->should_stay_as_initial_entry);
[email protected]09b8f82f2009-06-16 20:22:112293
[email protected]e9ba4472008-09-14 15:42:432294 // Manual subframe navigations just get the current entry cloned so the user
2295 // can go back or forward to it. The actual subframe information will be
2296 // stored in the page state for each of those entries. This happens out of
2297 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:092298 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
2299 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:382300
Mikel Astizba9cf2fd2017-12-17 10:38:102301 // The DCHECK below documents the fact that we don't know of any situation
2302 // where |replace_entry| is true for subframe navigations. This simplifies
2303 // reasoning about the replacement struct for subframes (see
2304 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
2305 DCHECK(!replace_entry);
2306
Patrick Monette50e8bd82019-06-13 22:40:452307 // This FrameNavigationEntry might not end up being used in the
2308 // CloneAndReplace() call below, if a spot can't be found for it in the tree.
Arthur Sonzognic686e8f2024-01-11 08:36:372309 const std::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:452310 request->common_params().initiator_origin;
Arthur Sonzognic686e8f2024-01-11 08:36:372311 std::optional<GURL> initiator_base_url;
W. James MacLean8be423a2023-03-31 21:35:522312 if (params.url.IsAboutBlank() || params.url.IsAboutSrcdoc()) {
2313 initiator_base_url = request->common_params().initiator_base_url;
2314 }
Nate Chapin63db0d12022-01-20 22:03:302315 std::unique_ptr<PolicyContainerPolicies> policy_container_policies =
2316 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
2317 request->GetURL());
Domenic Denicolacc094fb2022-03-16 23:40:572318 bool protect_url_in_navigation_api = false;
Nate Chapin63db0d12022-01-20 22:03:302319 if (is_same_document) {
2320 FrameNavigationEntry* previous_frame_entry =
2321 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
Domenic Denicolacc094fb2022-03-16 23:40:572322 // Try to preserve protect_url_in_navigation_api from the previous
Nate Chapin63db0d12022-01-20 22:03:302323 // FrameNavigationEntry.
Domenic Denicolacc094fb2022-03-16 23:40:572324 protect_url_in_navigation_api =
Nate Chapin63db0d12022-01-20 22:03:302325 previous_frame_entry &&
Domenic Denicolacc094fb2022-03-16 23:40:572326 previous_frame_entry->protect_url_in_navigation_api();
Nate Chapin63db0d12022-01-20 22:03:302327 } else {
Domenic Denicolacc094fb2022-03-16 23:40:572328 protect_url_in_navigation_api =
Nate Chapin63db0d12022-01-20 22:03:302329 policy_container_policies &&
Domenic Denicolacc094fb2022-03-16 23:40:572330 ShouldProtectUrlInNavigationApi(
Nate Chapin63db0d12022-01-20 22:03:302331 policy_container_policies->referrer_policy);
2332 }
2333
Patrick Monette50e8bd82019-06-13 22:40:452334 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:482335 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Domenic Denicolacc094fb2022-03-16 23:40:572336 params.document_sequence_number, params.navigation_api_key,
Nate Chapinfbfe5af2021-06-10 17:22:082337 rfh->GetSiteInstance(), nullptr, params.url,
2338 GetCommittedOriginForFrameEntry(params, request),
W. James MacLean23e90a12022-12-21 04:38:212339 Referrer(*params.referrer), initiator_origin, initiator_base_url,
2340 request->GetRedirectChain(), params.page_state, params.method,
2341 params.post_id, nullptr /* blob_url_loader_factory */,
Domenic Denicolacc094fb2022-03-16 23:40:572342 std::move(policy_container_policies), protect_url_in_navigation_api);
Charles Reisf44482022017-10-13 21:15:032343
creisce0ef3572017-01-26 17:53:082344 std::unique_ptr<NavigationEntryImpl> new_entry =
2345 GetLastCommittedEntry()->CloneAndReplace(
Patrick Monette50e8bd82019-06-13 22:40:452346 std::move(frame_entry), is_same_document, rfh->frame_tree_node(),
Ali Hijazid87307d2022-11-07 20:15:032347 frame_tree_->root());
creise062d542015-08-25 02:01:552348
Alexander Timine3ec4192020-04-20 16:39:402349 SetShouldSkipOnBackForwardUIIfNeeded(
Shivani Sharmaeef521b2024-01-18 13:03:562350 replace_entry, previous_document_had_history_intervention_activation,
Alexander Timine3ec4192020-04-20 16:39:402351 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
Shivani Sharmaffb32b82019-04-09 16:58:472352
creisce0ef3572017-01-26 17:53:082353 // TODO(creis): Update this to add the frame_entry if we can't find the one
Patrick Monette50e8bd82019-06-13 22:40:452354 // to replace, which can happen due to a unique name change. See
2355 // https://crbug.com/607205. For now, the call to CloneAndReplace() will
2356 // delete the |frame_entry| when the function exits if it doesn't get used.
creis96fc55082015-06-13 06:42:382357
Dave Tapuska87696ae2021-11-18 18:48:312358 InsertOrReplaceEntry(std::move(new_entry), replace_entry, false,
Abhijeet Kandalkare26014a92022-10-13 04:21:152359 rfh->IsNestedWithinFencedFrame(), commit_details);
[email protected]e9ba4472008-09-14 15:42:432360}
2361
[email protected]d202a7c2012-01-04 07:53:472362bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:322363 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072364 const mojom::DidCommitProvisionalLoadParams& params,
Antonio Sartori78a749f2020-11-30 12:03:392365 bool is_same_document,
Nate Chapinc7019dd7d2021-06-25 18:29:252366 bool was_on_initial_empty_document,
Rakina Zata Amnia4e27222021-12-22 01:05:002367 NavigationRequest* request,
2368 LoadCommittedDetails* commit_details) {
avi9f07a0c2015-02-18 22:51:292369 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
2370 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
2371
[email protected]e9ba4472008-09-14 15:42:432372 // We're guaranteed to have a previously committed entry, and we now need to
2373 // handle navigation inside of a subframe in it without creating a new entry.
2374 DCHECK(GetLastCommittedEntry());
2375
creis913c63ce2016-07-16 19:52:522376 // For newly created subframes, we don't need to send a commit notification.
2377 // This is only necessary for history navigations in subframes.
2378 bool send_commit_notification = false;
2379
Rakina Zata Amnif6950d552020-11-24 03:26:102380 // If |nav_entry_id| is non-zero and matches an existing entry, this
2381 // is a history navigation. Update the last committed index accordingly. If
2382 // we don't recognize the |nav_entry_id|, it might be a recently
2383 // pruned entry. We'll handle it below.
2384 if (const int nav_entry_id = request->commit_params().nav_entry_id) {
2385 int entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
creis3cdc3b02015-05-29 23:00:472386 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:062387 // Make sure that a subframe commit isn't changing the main frame's
2388 // origin. Otherwise the renderer process may be confused, leading to a
2389 // URL spoof. We can't check the path since that may change
2390 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:572391 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
2392 // about:blank, file, and unique origins are more subtle to get right.
Charlie Reis95fbca442021-05-21 21:38:242393 // We should use checks similar to RenderFrameHostImpl's
2394 // CanCommitUrlAndOrigin on the main frame during subframe commits.
2395 // See https://crbug.com/1209092.
creis37988b92016-06-10 18:03:572396 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
2397 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
2398 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
2399 dest_top_url.SchemeIsHTTPOrHTTPS() &&
Mike West800532c2021-10-14 09:26:522400 current_top_url.DeprecatedGetOriginAsURL() !=
2401 dest_top_url.DeprecatedGetOriginAsURL()) {
Chris Bookholt10f4b7332022-02-14 18:25:442402 bad_message::ReceivedBadMessage(rfh->GetMainFrame()->GetProcess(),
creisfb6eeb62016-05-10 19:01:512403 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:062404 }
creis3cdc3b02015-05-29 23:00:472405
creis913c63ce2016-07-16 19:52:522406 // We only need to discard the pending entry in this history navigation
2407 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:062408 last_committed_entry_index_ = entry_index;
Rakina Zata Amnia4e27222021-12-22 01:05:002409 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
creis913c63ce2016-07-16 19:52:522410
2411 // History navigations should send a commit notification.
2412 send_commit_notification = true;
avi98405c22015-05-21 20:47:062413 }
[email protected]e9ba4472008-09-14 15:42:432414 }
[email protected]f233e4232013-02-23 00:55:142415
creisce0ef3572017-01-26 17:53:082416 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
2417 // it may be a "history auto" case where we update an existing one.
Nate Chapin9f169072021-06-09 19:32:372418 // We may want to update |last_committed|'s FrameNavigationEntry (if one
2419 // exists), or we may want to clobber it and create a new one. We update in
2420 // cases where the corresponding FrameNavigationEntry is conceptually similar
2421 // to the document described by the commit params: same-document
2422 // navigations, history traversal to an existing entry, and reloads (including
2423 // a "soft reload" where we navigate to the same url without flagging it as a
2424 // reload). But in the case of a different document that is not logically
2425 // related to the committed FrameNavigationEntry's document (cross-document,
2426 // not same url, not a reload, not a history traversal), we replace rather
2427 // than update.
Nate Chapinc7019dd7d2021-06-25 18:29:252428 //
Nate Chapin9f169072021-06-09 19:32:372429 // In the case where we update, the FrameNavigationEntry will potentially be
2430 // shared across multiple NavigationEntries, and any updates will be reflected
2431 // in all of those NavigationEntries. In the replace case, any existing
2432 // sharing with other NavigationEntries will stop.
Nate Chapinc7019dd7d2021-06-25 18:29:252433 //
2434 // When navigating away from the initial empty document, we also update rather
2435 // than replace. Either update or replace will overwrite the initial empty
2436 // document state for |last_committed|, but if the FrameNavigationEntry for
2437 // the initial empty document is shared across multiple NavigationEntries (due
2438 // to a navigation in another frame), we want to make sure we overwrite the
2439 // initial empty document state everywhere this FrameNavigationEntry is used,
2440 // which is accompished by updating the existing FrameNavigationEntry.
Rakina Zata Amnie2d31312022-11-18 03:38:452441 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
Nate Chapin9f169072021-06-09 19:32:372442 FrameNavigationEntry* last_committed_frame_entry =
2443 last_committed->GetFrameEntry(rfh->frame_tree_node());
2444 NavigationEntryImpl::UpdatePolicy update_policy =
2445 NavigationEntryImpl::UpdatePolicy::kUpdate;
2446 if (request->common_params().navigation_type ==
Minggang Wangb9f3fa92021-07-01 15:30:312447 blink::mojom::NavigationType::DIFFERENT_DOCUMENT &&
Nate Chapin9f169072021-06-09 19:32:372448 last_committed_frame_entry &&
Nate Chapinc7019dd7d2021-06-25 18:29:252449 last_committed_frame_entry->url() != params.url &&
2450 !was_on_initial_empty_document) {
Nate Chapin9f169072021-06-09 19:32:372451 update_policy = NavigationEntryImpl::UpdatePolicy::kReplace;
2452 }
2453
Rakina Zata Amni3460d382021-10-29 00:43:372454 UpdateNavigationEntryDetails(last_committed, rfh, params, request,
Rakina Zata Amnia4e27222021-12-22 01:05:002455 update_policy, false /* is_new_entry */,
2456 commit_details);
creis625a0c7d2015-03-24 23:17:122457
creis913c63ce2016-07-16 19:52:522458 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:432459}
2460
[email protected]d202a7c2012-01-04 07:53:472461int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:232462 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:032463 for (size_t i = 0; i < entries_.size(); ++i) {
2464 if (entries_[i].get() == entry)
2465 return i;
2466 }
2467 return -1;
[email protected]765b35502008-08-21 00:51:202468}
2469
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572470void NavigationControllerImpl::CopyStateFrom(NavigationController* temp,
Francois Dorayeaace782017-06-21 16:37:242471 bool needs_reload) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572472 NavigationControllerImpl* source =
2473 static_cast<NavigationControllerImpl*>(temp);
[email protected]ce3fa3c2009-04-20 19:55:572474 // Verify that we look new.
Rakina Zata Amni46087a12022-11-11 08:28:382475 DCHECK_EQ(1, GetEntryCount());
2476 DCHECK(GetLastCommittedEntry()->IsInitialEntry());
Lei Zhang96031532019-10-10 19:05:472477 DCHECK(!GetPendingEntry());
Rakina Zata Amniafd3c6582021-11-30 06:19:172478 entries_.clear();
[email protected]ce3fa3c2009-04-20 19:55:572479
Francois Dorayeaace782017-06-21 16:37:242480 needs_reload_ = needs_reload;
Bo Liucdfa4b12018-11-06 00:21:442481 needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572482 InsertEntriesFrom(source, source->GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:572483
Fergal Dalya1d569972021-03-16 03:24:532484 for (auto& it : source->session_storage_namespace_map_) {
[email protected]fdac6ade2013-07-20 01:06:302485 SessionStorageNamespaceImpl* source_namespace =
Fergal Dalya1d569972021-03-16 03:24:532486 static_cast<SessionStorageNamespaceImpl*>(it.second.get());
2487 session_storage_namespace_map_[it.first] = source_namespace->Clone();
[email protected]fdac6ade2013-07-20 01:06:302488 }
[email protected]4e6419c2010-01-15 04:50:342489
Lukasz Anforowicz0de0f452020-12-02 19:57:152490 FinishRestore(source->last_committed_entry_index_, RestoreType::kRestored);
[email protected]ce3fa3c2009-04-20 19:55:572491}
2492
Aran Gilman37d11632019-10-08 23:07:152493void NavigationControllerImpl::CopyStateFromAndPrune(NavigationController* temp,
2494 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:162495 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012496 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:162497
[email protected]d202a7c2012-01-04 07:53:472498 NavigationControllerImpl* source =
2499 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:252500
avi2b177592014-12-10 02:08:022501 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:012502 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:252503
[email protected]474f8512013-05-31 22:31:162504 // We now have one entry, possibly with a new pending entry. Ensure that
2505 // adding the entries from source won't put us over the limit.
2506 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:572507 if (!replace_entry)
Shivani Sharmad8c8d652019-02-13 17:27:572508 source->PruneOldestSkippableEntryIfFull();
[email protected]944822b2012-03-02 20:57:252509
Carlos IL4dea8902020-05-26 15:14:292510 // Insert the entries from source. Ignore any pending entry, since it has not
2511 // committed in source.
[email protected]474f8512013-05-31 22:31:162512 int max_source_index = source->last_committed_entry_index_;
Rakina Zata Amniafd3c6582021-11-30 06:19:172513 DCHECK_NE(max_source_index, -1);
2514 max_source_index++;
[email protected]e78a6852013-12-13 08:08:572515
2516 // Ignore the source's current entry if merging with replacement.
2517 // TODO(davidben): This should preserve entries forward of the current
2518 // too. http://crbug.com/317872
2519 if (replace_entry && max_source_index > 0)
2520 max_source_index--;
2521
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572522 InsertEntriesFrom(source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:252523
2524 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:552525 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:142526
Hayato Ito2c8c08d02021-06-23 03:38:432527 BroadcastHistoryOffsetAndLength();
[email protected]e1cd5452010-08-26 18:03:252528}
2529
[email protected]79368982013-11-13 01:11:012530bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:162531 // If there is no last committed entry, we cannot prune. Even if there is a
2532 // pending entry, it may not commit, leaving this WebContents blank, despite
2533 // possibly giving it new entries via CopyStateFromAndPrune.
2534 if (last_committed_entry_index_ == -1)
2535 return false;
[email protected]9350602e2013-02-26 23:27:442536
[email protected]474f8512013-05-31 22:31:162537 // We cannot prune if there is a pending entry at an existing entry index.
2538 // It may not commit, so we have to keep the last committed entry, and thus
2539 // there is no sensible place to keep the pending entry. It is ok to have
2540 // a new pending entry, which can optionally commit as a new navigation.
2541 if (pending_entry_index_ != -1)
2542 return false;
2543
[email protected]474f8512013-05-31 22:31:162544 return true;
2545}
2546
[email protected]79368982013-11-13 01:11:012547void NavigationControllerImpl::PruneAllButLastCommitted() {
2548 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:162549
avi2b177592014-12-10 02:08:022550 DCHECK_EQ(0, last_committed_entry_index_);
2551 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:442552
Hayato Ito2c8c08d02021-06-23 03:38:432553 BroadcastHistoryOffsetAndLength();
[email protected]9350602e2013-02-26 23:27:442554}
2555
[email protected]79368982013-11-13 01:11:012556void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:162557 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012558 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:262559
Nate Chapin9eb16be72022-09-23 22:54:312560 RemovedEntriesTracker tracker(weak_factory_.GetSafeRef());
2561
[email protected]474f8512013-05-31 22:31:162562 // Erase all entries but the last committed entry. There may still be a
2563 // new pending entry after this.
2564 entries_.erase(entries_.begin(),
2565 entries_.begin() + last_committed_entry_index_);
2566 entries_.erase(entries_.begin() + 1, entries_.end());
2567 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:262568}
2569
Christian Dullweber1af31e62018-02-22 11:49:482570void NavigationControllerImpl::DeleteNavigationEntries(
2571 const DeletionPredicate& deletionPredicate) {
2572 // It is up to callers to check the invariants before calling this.
2573 CHECK(CanPruneAllButLastCommitted());
2574 std::vector<int> delete_indices;
2575 for (size_t i = 0; i < entries_.size(); i++) {
2576 if (i != static_cast<size_t>(last_committed_entry_index_) &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572577 deletionPredicate.Run(entries_[i].get())) {
Christian Dullweber1af31e62018-02-22 11:49:482578 delete_indices.push_back(i);
2579 }
2580 }
2581 if (delete_indices.empty())
2582 return;
2583
2584 if (delete_indices.size() == GetEntryCount() - 1U) {
2585 PruneAllButLastCommitted();
2586 } else {
2587 // Do the deletion in reverse to preserve indices.
Ayu Ishii2f825852022-03-08 19:47:382588 for (const auto& index : base::Reversed(delete_indices)) {
2589 RemoveEntryAtIndex(index);
Christian Dullweber1af31e62018-02-22 11:49:482590 }
Hayato Ito2c8c08d02021-06-23 03:38:432591 BroadcastHistoryOffsetAndLength();
Christian Dullweber1af31e62018-02-22 11:49:482592 }
2593 delegate()->NotifyNavigationEntriesDeleted();
2594}
2595
Carlos Caballero35ce710c2019-09-19 10:59:452596BackForwardCacheImpl& NavigationControllerImpl::GetBackForwardCache() {
2597 return back_forward_cache_;
2598}
2599
William Liu055a3542023-04-02 17:21:192600NavigationEntryScreenshotCache*
2601NavigationControllerImpl::GetNavigationEntryScreenshotCache() {
Takashi Toyoshima7c041d82023-09-26 16:09:212602 CHECK(frame_tree_->is_primary());
William Liu055a3542023-04-02 17:21:192603 if (!nav_entry_screenshot_cache_ && AreBackForwardTransitionsEnabled()) {
2604 nav_entry_screenshot_cache_ =
2605 std::make_unique<NavigationEntryScreenshotCache>(
2606 BrowserContextImpl::From(browser_context_)
2607 ->GetNavigationEntryScreenshotManager()
2608 ->GetSafeRef(),
2609 this);
2610 }
2611 return nav_entry_screenshot_cache_.get();
2612}
2613
clamy987a3752018-05-03 17:36:262614void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
2615 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
2616 // progress, since this will cause a use-after-free. (We only allow this
2617 // when the tab is being destroyed for shutdown, since it won't return to
2618 // NavigateToEntry in that case.) http://crbug.com/347742.
Ali Hijazid87307d2022-11-07 20:15:032619 CHECK(!in_navigate_to_pending_entry_ || frame_tree_->IsBeingDestroyed());
clamy987a3752018-05-03 17:36:262620
2621 if (was_failure && pending_entry_) {
2622 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
2623 } else {
2624 failed_pending_entry_id_ = 0;
2625 }
2626
2627 if (pending_entry_) {
2628 if (pending_entry_index_ == -1)
Paul Semel7e51469e2022-07-12 12:16:332629 pending_entry_.ClearAndDelete();
clamy987a3752018-05-03 17:36:262630 pending_entry_index_ = -1;
2631 pending_entry_ = nullptr;
2632 }
arthursonzogni66f711c2019-10-08 14:40:362633
2634 // Ensure any refs to the current pending entry are ignored if they get
2635 // deleted, by clearing the set of known refs. All future pending entries will
2636 // only be affected by new refs.
2637 pending_entry_refs_.clear();
clamy987a3752018-05-03 17:36:262638}
2639
2640void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
2641 if (pending_entry_)
2642 pending_entry_->set_ssl_error(error);
2643}
2644
Xiaohan Wang7f8052e02022-01-14 18:44:282645#if BUILDFLAG(IS_ANDROID)
Camille Lamy5193caa2018-10-12 11:59:422646// static
2647bool NavigationControllerImpl::ValidateDataURLAsString(
2648 const scoped_refptr<const base::RefCountedString>& data_url_as_string) {
2649 if (!data_url_as_string)
2650 return false;
2651
2652 if (data_url_as_string->size() > kMaxLengthOfDataURLString)
2653 return false;
2654
2655 // The number of characters that is enough for validating a data: URI.
2656 // From the GURL's POV, the only important part here is scheme, it doesn't
2657 // check the actual content. Thus we can take only the prefix of the url, to
2658 // avoid unneeded copying of a potentially long string.
danakj529a3eba2024-04-18 20:14:562659 constexpr size_t kDataUriPrefixMaxLen = 64;
2660 const size_t len = std::min(data_url_as_string->size(), kDataUriPrefixMaxLen);
2661 GURL data_url(base::as_string_view(*data_url_as_string).substr(0u, len));
Camille Lamy5193caa2018-10-12 11:59:422662 if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
2663 return false;
2664
2665 return true;
2666}
2667#endif
2668
Shivani Sharma194877032019-03-07 17:52:472669void NavigationControllerImpl::NotifyUserActivation() {
2670 // When a user activation occurs, ensure that all adjacent entries for the
2671 // same document clear their skippable bit, so that the history manipulation
2672 // intervention does not apply to them.
Lijin Shen9c475d32023-09-02 00:15:012673 const bool can_go_back = CanGoBack();
Shivani Sharmac4cc8922019-04-18 03:11:172674 SetSkippableForSameDocumentEntries(GetLastCommittedEntryIndex(), false);
Lijin Shen9c475d32023-09-02 00:15:012675 // If the value of CanGoBack changes as a result of making some entries
2676 // non-skippable, then we must let the delegate know to update its UI state.
2677 // See https://crbug.com/1477784.
2678 if (!can_go_back && CanGoBack()) {
2679 delegate_->NotifyNavigationStateChangedFromController(INVALIDATE_TYPE_ALL);
2680 }
Shivani Sharma194877032019-03-07 17:52:472681}
2682
clamy987a3752018-05-03 17:36:262683bool NavigationControllerImpl::StartHistoryNavigationInNewSubframe(
2684 RenderFrameHostImpl* render_frame_host,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:332685 mojo::PendingAssociatedRemote<mojom::NavigationClient>* navigation_client,
2686 blink::LocalFrameToken initiator_frame_token,
2687 int initiator_process_id) {
clamy987a3752018-05-03 17:36:262688 NavigationEntryImpl* entry =
2689 GetEntryWithUniqueID(render_frame_host->nav_entry_id());
2690 if (!entry)
2691 return false;
2692
2693 FrameNavigationEntry* frame_entry =
2694 entry->GetFrameEntry(render_frame_host->frame_tree_node());
2695 if (!frame_entry)
2696 return false;
2697
Camille Lamy5193caa2018-10-12 11:59:422698 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572699 render_frame_host->frame_tree_node(), entry, frame_entry,
clamyea99ea12018-05-28 13:54:232700 ReloadType::NONE, false /* is_same_document_history_load */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:332701 true /* is_history_navigation_in_new_child */, initiator_frame_token,
2702 initiator_process_id);
clamyea99ea12018-05-28 13:54:232703
2704 if (!request)
2705 return false;
2706
arthursonzognif046d4a2019-12-12 19:08:102707 request->SetNavigationClient(std::move(*navigation_client));
Arthur Hemery06173ce2019-05-29 12:11:412708
Rakina Zata Amni1c83b082023-02-08 01:09:002709 SCOPED_CRASH_KEY_STRING256(
2710 "Bug1400009", "req_url",
2711 request->GetURL().GetWithEmptyPath().possibly_invalid_spec());
2712 SCOPED_CRASH_KEY_NUMBER(
2713 "Bug1400009", "nav_entry_si",
2714 entry->site_instance() ? ((int)entry->site_instance()->GetId()) : -1);
2715 SCOPED_CRASH_KEY_NUMBER("Bug1400009", "fne_si",
2716 frame_entry->site_instance()
2717 ? ((int)frame_entry->site_instance()->GetId())
2718 : -1);
2719 bool has_sig =
2720 (frame_entry->site_instance() && frame_entry->site_instance()->group());
2721 SCOPED_CRASH_KEY_BOOL("Bug1400009", "fne_sig_exists", has_sig);
2722 SCOPED_CRASH_KEY_BOOL("Bug1400009", "fne_sig_has_rvh",
2723 has_sig ? (!!frame_tree_->GetRenderViewHost(
2724 frame_entry->site_instance()->group()))
2725 : false);
Lukasz Anforowicz9ee83c272020-12-01 20:14:052726 render_frame_host->frame_tree_node()->navigator().Navigate(std::move(request),
2727 ReloadType::NONE);
clamyea99ea12018-05-28 13:54:232728
2729 return true;
clamy987a3752018-05-03 17:36:262730}
2731
Tsuyoshi Horo52fd08e2020-07-07 07:03:452732bool NavigationControllerImpl::ReloadFrame(FrameTreeNode* frame_tree_node) {
2733 NavigationEntryImpl* entry = GetEntryAtIndex(GetCurrentEntryIndex());
2734 if (!entry)
2735 return false;
Rakina Zata Amnif297a802022-01-18 03:53:432736
2737 if (entry->IsInitialEntryNotForSynchronousAboutBlank()) {
2738 // We should never navigate to an existing initial NavigationEntry that is
2739 // the initial NavigationEntry for the initial empty document that hasn't
2740 // been overridden by the synchronous about:blank commit, to preserve
2741 // legacy behavior where trying to reload when the main frame is on the
2742 // initial empty document won't result in a navigation. See also
2743 // https://crbug.com/1277414.
2744 return false;
2745 }
Tsuyoshi Horo52fd08e2020-07-07 07:03:452746 FrameNavigationEntry* frame_entry = entry->GetFrameEntry(frame_tree_node);
2747 if (!frame_entry)
2748 return false;
John Abd-El-Malek5b669132020-07-14 01:04:142749 ReloadType reload_type = ReloadType::NORMAL;
2750 entry->set_reload_type(reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452751 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
John Abd-El-Malek5b669132020-07-14 01:04:142752 frame_tree_node, entry, frame_entry, reload_type,
Tsuyoshi Horo52fd08e2020-07-07 07:03:452753 false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:432754 false /* is_history_navigation_in_new_child */,
Arthur Sonzognic686e8f2024-01-11 08:36:372755 std::nullopt /* initiator_frame_token */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:332756 ChildProcessHost::kInvalidUniqueID /* initiator_process_id */);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452757 if (!request)
2758 return false;
Lukasz Anforowicz9ee83c272020-12-01 20:14:052759 frame_tree_node->navigator().Navigate(std::move(request), reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452760 return true;
2761}
2762
clamy987a3752018-05-03 17:36:262763void NavigationControllerImpl::NavigateFromFrameProxy(
2764 RenderFrameHostImpl* render_frame_host,
2765 const GURL& url,
Chris Hamilton83272dc2021-02-23 00:24:022766 const blink::LocalFrameToken* initiator_frame_token,
Antonio Sartori9a82f6f32020-12-14 09:22:452767 int initiator_process_id,
Arthur Sonzognic686e8f2024-01-11 08:36:372768 const std::optional<url::Origin>& initiator_origin,
2769 const std::optional<GURL>& initiator_base_url,
clamy987a3752018-05-03 17:36:262770 bool is_renderer_initiated,
2771 SiteInstance* source_site_instance,
2772 const Referrer& referrer,
2773 ui::PageTransition page_transition,
2774 bool should_replace_current_entry,
Yeunjoo Choi3df791a2021-02-17 07:07:252775 blink::NavigationDownloadPolicy download_policy,
clamy987a3752018-05-03 17:36:262776 const std::string& method,
2777 scoped_refptr<network::ResourceRequestBody> post_body,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092778 const std::string& extra_headers,
Antonio Sartori2f763d9d2021-04-21 10:04:142779 network::mojom::SourceLocationPtr source_location,
John Delaney50425f82020-04-07 16:26:212780 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory,
jongdeok.kim5de823b32022-06-14 04:37:502781 bool is_form_submission,
Arthur Sonzognic686e8f2024-01-11 08:36:372782 const std::optional<blink::Impression>& impression,
Yao Xiao720ef9d62022-12-09 05:18:292783 blink::mojom::NavigationInitiatorActivationAndAdStatus
2784 initiator_activation_and_ad_status,
Nan Lin944e9b4e2022-04-12 13:51:222785 base::TimeTicks navigation_start_time,
Garrett Tanzer405f3402022-07-21 20:12:492786 bool is_embedder_initiated_fenced_frame_navigation,
Garrett Tanzerbb8db412022-09-27 21:59:462787 bool is_unfenced_top_navigation,
Sergey Poromovdd557c12023-03-01 11:28:452788 bool force_new_browsing_instance,
Camillia Smith Barnes6a643962023-03-03 00:28:582789 bool is_container_initiated,
Arthur Sonzognic686e8f2024-01-11 08:36:372790 std::optional<std::u16string> embedder_shared_storage_context) {
Lukasz Anforowicz63f3b9432019-05-30 05:42:582791 if (is_renderer_initiated)
2792 DCHECK(initiator_origin.has_value());
2793
clamy987a3752018-05-03 17:36:262794 FrameTreeNode* node = render_frame_host->frame_tree_node();
Nasko Oskov18006bc2018-12-06 02:53:582795
Rakina Zata Amni2322f4f82022-01-24 13:24:242796 // Don't allow an entry replacement if there is no entry to replace.
2797 // http://crbug.com/457149
2798 if (GetEntryCount() == 0)
2799 should_replace_current_entry = false;
2800
clamy987a3752018-05-03 17:36:262801 // Create a NavigationEntry for the transfer, without making it the pending
2802 // entry. Subframe transfers should have a clone of the last committed entry
2803 // with a FrameNavigationEntry for the target frame. Main frame transfers
2804 // should have a new NavigationEntry.
2805 // TODO(creis): Make this unnecessary by creating (and validating) the params
2806 // directly, passing them to the destination RenderFrameHost. See
2807 // https://crbug.com/536906.
2808 std::unique_ptr<NavigationEntryImpl> entry;
Harkiran Bolariae1b5158b2021-09-16 19:03:262809 if (!render_frame_host->is_main_frame()) {
clamy987a3752018-05-03 17:36:262810 // Subframe case: create FrameNavigationEntry.
Rakina Zata Amnie2d31312022-11-18 03:38:452811 DCHECK(GetLastCommittedEntry());
2812 entry = GetLastCommittedEntry()->Clone();
2813 entry->set_extra_headers(extra_headers);
Rakina Zata Amniafd3c6582021-11-30 06:19:172814 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2815 // Renderer-initiated navigation that target a remote frame are currently
2816 // classified as browser-initiated when this one has already navigated.
2817 // See https://crbug.com/722251.
Nate Chapin9f169072021-06-09 19:32:372818 // The UpdatePolicy doesn't matter here. |entry| is only used as a parameter
2819 // to CreateNavigationRequestFromLoadParams(), so while kReplace might
2820 // remove child FrameNavigationEntries (e.g., if this is a cross-process
2821 // same-document navigation), they will still be present in the
2822 // committed NavigationEntry that will be referenced to construct the new
2823 // FrameNavigationEntry tree when this navigation commits.
clamy987a3752018-05-03 17:36:262824 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:082825 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582826 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Arthur Sonzognic686e8f2024-01-11 08:36:372827 std::nullopt /* commit_origin */, referrer, initiator_origin,
W. James MacLean23e90a12022-12-21 04:38:212828 initiator_base_url, std::vector<GURL>(), blink::PageState(), method, -1,
Kunihiko Sakamoto2ae79e62023-05-26 00:34:152829 blob_url_loader_factory, nullptr /* policy_container_policies */);
clamy987a3752018-05-03 17:36:262830 } else {
2831 // Main frame case.
Julie Jeongeun Kim5b9aff72022-05-02 02:10:172832 // If `node` is the outermost main frame, it rewrites a virtual url in order
2833 // to adjust the original input url if needed. For inner frames such as
2834 // fenced frames or subframes, they don't rewrite urls as the urls are not
2835 // input urls by users.
2836 bool rewrite_virtual_urls = node->IsOutermostMainFrame();
Arthur Sonzognic686e8f2024-01-11 08:36:372837 std::optional<GURL> source_process_site_url = std::nullopt;
Sharon Yang242ef822023-05-15 21:07:322838 if (source_site_instance && source_site_instance->HasProcess()) {
2839 source_process_site_url =
2840 source_site_instance->GetProcess()->GetProcessLock().site_url();
2841 }
clamy987a3752018-05-03 17:36:262842 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
W. James MacLean23e90a12022-12-21 04:38:212843 url, referrer, initiator_origin, initiator_base_url,
Sharon Yang242ef822023-05-15 21:07:322844 source_process_site_url, page_transition, is_renderer_initiated,
W. James MacLean23e90a12022-12-21 04:38:212845 extra_headers, browser_context_, blob_url_loader_factory,
2846 rewrite_virtual_urls));
clamy987a3752018-05-03 17:36:262847 entry->root_node()->frame_entry->set_source_site_instance(
2848 static_cast<SiteInstanceImpl*>(source_site_instance));
2849 entry->root_node()->frame_entry->set_method(method);
2850 }
clamy987a3752018-05-03 17:36:262851
Camille Lamy5193caa2018-10-12 11:59:422852 bool override_user_agent = false;
Rakina Zata Amnie2d31312022-11-18 03:38:452853 if (GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
clamy987a3752018-05-03 17:36:262854 entry->SetIsOverridingUserAgent(true);
Camille Lamy5193caa2018-10-12 11:59:422855 override_user_agent = true;
clamy987a3752018-05-03 17:36:262856 }
2857 // TODO(creis): Set user gesture and intent received timestamp on Android.
2858
2859 // We may not have successfully added the FrameNavigationEntry to |entry|
2860 // above (per https://crbug.com/608402), in which case we create it from
2861 // scratch. This works because we do not depend on |frame_entry| being inside
2862 // |entry| during NavigateToEntry. This will go away when we shortcut this
2863 // further in https://crbug.com/536906.
2864 scoped_refptr<FrameNavigationEntry> frame_entry(entry->GetFrameEntry(node));
2865 if (!frame_entry) {
Patrick Monette50e8bd82019-06-13 22:40:452866 frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Nate Chapinfbfe5af2021-06-10 17:22:082867 node->unique_name(), -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582868 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Arthur Sonzognic686e8f2024-01-11 08:36:372869 std::nullopt /* origin */, referrer, initiator_origin,
W. James MacLean23e90a12022-12-21 04:38:212870 initiator_base_url, std::vector<GURL>(), blink::PageState(), method, -1,
Kunihiko Sakamoto2ae79e62023-05-26 00:34:152871 blob_url_loader_factory, nullptr /* policy_container_policies */,
Domenic Denicolacc094fb2022-03-16 23:40:572872 false /* protect_url_in_navigation_api */);
clamy987a3752018-05-03 17:36:262873 }
2874
Camille Lamy5193caa2018-10-12 11:59:422875 LoadURLParams params(url);
Chris Hamilton83272dc2021-02-23 00:24:022876 params.initiator_frame_token = base::OptionalFromPtr(initiator_frame_token);
Antonio Sartori9a82f6f32020-12-14 09:22:452877 params.initiator_process_id = initiator_process_id;
Nasko Oskov93e7c55c2018-12-19 01:59:292878 params.initiator_origin = initiator_origin;
W. James MacLean23e90a12022-12-21 04:38:212879 params.initiator_base_url = initiator_base_url;
Camille Lamy5193caa2018-10-12 11:59:422880 params.source_site_instance = source_site_instance;
2881 params.load_type = method == "POST" ? LOAD_TYPE_HTTP_POST : LOAD_TYPE_DEFAULT;
2882 params.transition_type = page_transition;
Dominic Farolino226226af2019-06-25 00:58:032883 params.frame_tree_node_id = node->frame_tree_node_id();
Camille Lamy5193caa2018-10-12 11:59:422884 params.referrer = referrer;
2885 /* params.redirect_chain: skip */
2886 params.extra_headers = extra_headers;
2887 params.is_renderer_initiated = is_renderer_initiated;
2888 params.override_user_agent = UA_OVERRIDE_INHERIT;
2889 /* params.base_url_for_data_url: skip */
2890 /* params.virtual_url_for_data_url: skip */
2891 /* params.data_url_as_string: skip */
2892 params.post_data = post_body;
2893 params.can_load_local_resources = false;
Kevin McNeee60e76b2019-11-27 20:01:582894 /* params.should_replace_current_entry: skip */
Camille Lamy5193caa2018-10-12 11:59:422895 /* params.frame_name: skip */
2896 // TODO(clamy): See if user gesture should be propagated to this function.
2897 params.has_user_gesture = false;
2898 params.should_clear_history_list = false;
2899 params.started_from_context_menu = false;
2900 /* params.navigation_ui_data: skip */
2901 /* params.input_start: skip */
Minggang Wangf59db47b2021-06-16 01:56:222902 params.was_activated = blink::mojom::WasActivatedOption::kUnknown;
Robert Ogden011a8082019-01-23 19:04:542903 /* params.reload_type: skip */
John Delaney50425f82020-04-07 16:26:212904 params.impression = impression;
Antonio Sartori6984c742021-08-26 08:03:412905 params.download_policy = std::move(download_policy);
jongdeok.kim5de823b32022-06-14 04:37:502906 params.is_form_submission = is_form_submission;
Yao Xiao720ef9d62022-12-09 05:18:292907 params.initiator_activation_and_ad_status =
2908 initiator_activation_and_ad_status;
Camille Lamy5193caa2018-10-12 11:59:422909
2910 std::unique_ptr<NavigationRequest> request =
2911 CreateNavigationRequestFromLoadParams(
Dominic Farolino226226af2019-06-25 00:58:032912 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:142913 false /* has_user_gesture */, std::move(source_location),
Tsuyoshi Horo167ca6432022-03-09 05:16:392914 ReloadType::NONE, entry.get(), frame_entry.get(),
Garrett Tanzer405f3402022-07-21 20:12:492915 navigation_start_time, is_embedder_initiated_fenced_frame_navigation,
Camillia Smith Barnes6a643962023-03-03 00:28:582916 is_unfenced_top_navigation, is_container_initiated,
2917 embedder_shared_storage_context);
clamyea99ea12018-05-28 13:54:232918
2919 if (!request)
2920 return;
2921
Garrett Tanzerbb8db412022-09-27 21:59:462922 // Force the navigation to take place in a new browsing instance.
2923 // This is used by _unfencedTop in fenced frames to ensure that navigations
2924 // leaving the fenced context create a new browsing instance.
2925 if (force_new_browsing_instance) {
2926 request->coop_status().ForceBrowsingInstanceSwap();
2927 }
2928
Arthur Hemery948742762019-09-18 10:06:242929 // At this stage we are proceeding with this navigation. If this was renderer
2930 // initiated with user gesture, we need to make sure we clear up potential
2931 // remains of a cancelled browser initiated navigation to avoid URL spoofs.
2932 DiscardNonCommittedEntries();
2933
Lukasz Anforowicz9ee83c272020-12-01 20:14:052934 node->navigator().Navigate(std::move(request), ReloadType::NONE);
clamy987a3752018-05-03 17:36:262935}
2936
[email protected]d1198fd2012-08-13 22:50:192937void NavigationControllerImpl::SetSessionStorageNamespace(
Alex Moshchuk8015afcf2022-01-31 22:59:252938 const StoragePartitionConfig& partition_config,
[email protected]8ff00d72012-10-23 19:12:212939 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:192940 if (!session_storage_namespace)
2941 return;
2942
2943 // We can't overwrite an existing SessionStorage without violating spec.
2944 // Attempts to do so may give a tab access to another tab's session storage
2945 // so die hard on an error.
Aran Gilman37d11632019-10-08 23:07:152946 bool successful_insert =
2947 session_storage_namespace_map_
Alex Moshchuk8015afcf2022-01-31 22:59:252948 .insert(std::make_pair(partition_config,
Aaron Colwellf3b316e2021-03-11 20:17:052949 static_cast<SessionStorageNamespaceImpl*>(
2950 session_storage_namespace)))
[email protected]fdac6ade2013-07-20 01:06:302951 .second;
2952 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:192953}
2954
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572955bool NavigationControllerImpl::IsUnmodifiedBlankTab() {
Rakina Zata Amnie2d31312022-11-18 03:38:452956 return IsInitialNavigation() && GetLastCommittedEntry()->IsInitialEntry() &&
Ali Hijazid87307d2022-11-07 20:15:032957 !frame_tree_->has_accessed_initial_main_document();
[email protected]aa62afd2014-04-22 19:22:462958}
2959
Aran Gilman37d11632019-10-08 23:07:152960SessionStorageNamespace* NavigationControllerImpl::GetSessionStorageNamespace(
Alex Moshchuk8015afcf2022-01-31 22:59:252961 const StoragePartitionConfig& partition_config) {
[email protected]fdac6ade2013-07-20 01:06:302962 StoragePartition* partition =
Lukasz Anforowiczb9a969a2021-04-29 15:26:252963 browser_context_->GetStoragePartition(partition_config);
michaelnbacbcbd2016-02-09 00:32:032964 DOMStorageContextWrapper* context_wrapper =
2965 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
2966
2967 SessionStorageNamespaceMap::const_iterator it =
Alex Moshchuk8015afcf2022-01-31 22:59:252968 session_storage_namespace_map_.find(partition_config);
michaelnbacbcbd2016-02-09 00:32:032969 if (it != session_storage_namespace_map_.end()) {
2970 // Ensure that this namespace actually belongs to this partition.
Aran Gilman37d11632019-10-08 23:07:152971 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())
2972 ->IsFromContext(context_wrapper));
Aaron Colwellb731a0ae2021-03-19 19:14:472973
michaelnbacbcbd2016-02-09 00:32:032974 return it->second.get();
2975 }
2976
2977 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:102978 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
2979 SessionStorageNamespaceImpl::Create(context_wrapper);
2980 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
2981 session_storage_namespace.get();
Alex Moshchuk8015afcf2022-01-31 22:59:252982 session_storage_namespace_map_[partition_config] =
Daniel Murphy31bbb8b12018-02-07 21:44:102983 std::move(session_storage_namespace);
[email protected]fdac6ade2013-07-20 01:06:302984
Daniel Murphy31bbb8b12018-02-07 21:44:102985 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:302986}
2987
2988SessionStorageNamespace*
2989NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
Alex Moshchuk8015afcf2022-01-31 22:59:252990 return GetSessionStorageNamespace(
2991 StoragePartitionConfig::CreateDefault(GetBrowserContext()));
[email protected]fdac6ade2013-07-20 01:06:302992}
2993
2994const SessionStorageNamespaceMap&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572995NavigationControllerImpl::GetSessionStorageNamespaceMap() {
[email protected]fdac6ade2013-07-20 01:06:302996 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:552997}
[email protected]d202a7c2012-01-04 07:53:472998
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572999bool NavigationControllerImpl::NeedsReload() {
[email protected]71fde352011-12-29 03:29:563000 return needs_reload_;
3001}
[email protected]a26023822011-12-29 00:23:553002
[email protected]46bb5e9c2013-10-03 22:16:473003void NavigationControllerImpl::SetNeedsReload() {
Alex Moshchuk7b4f0652019-05-30 18:54:413004 SetNeedsReload(NeedsReloadType::kRequestedByClient);
3005}
3006
3007void NavigationControllerImpl::SetNeedsReload(NeedsReloadType type) {
[email protected]46bb5e9c2013-10-03 22:16:473008 needs_reload_ = true;
Alex Moshchuk7b4f0652019-05-30 18:54:413009 needs_reload_type_ = type;
jaekyunc8cefa82015-01-09 20:14:543010
3011 if (last_committed_entry_index_ != -1) {
3012 entries_[last_committed_entry_index_]->SetTransitionType(
3013 ui::PAGE_TRANSITION_RELOAD);
3014 }
[email protected]46bb5e9c2013-10-03 22:16:473015}
3016
[email protected]d202a7c2012-01-04 07:53:473017void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
Kevin McNee05164772019-09-03 17:24:573018 DCHECK_LT(index, GetEntryCount());
3019 DCHECK_NE(index, last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:313020 DiscardNonCommittedEntries();
3021
Nate Chapin9eb16be72022-09-23 22:54:313022 RemovedEntriesTracker tracker(weak_factory_.GetSafeRef());
[email protected]43032342011-03-21 14:10:313023 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:123024 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:313025 last_committed_entry_index_--;
3026}
3027
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573028NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() {
arthursonzogni5c4c202d2017-04-25 23:41:273029 // If there is no pending_entry_, there should be no pending_entry_index_.
3030 DCHECK(pending_entry_ || pending_entry_index_ == -1);
3031
3032 // If there is a pending_entry_index_, then pending_entry_ must be the entry
Carlos IL42b416592019-10-07 23:10:363033 // at that index. An exception is while a reload of a post commit error page
3034 // is ongoing; in that case pending entry will point to the entry replaced
3035 // by the error.
arthursonzogni5c4c202d2017-04-25 23:41:273036 DCHECK(pending_entry_index_ == -1 ||
Carlos IL42b416592019-10-07 23:10:363037 pending_entry_ == GetEntryAtIndex(pending_entry_index_) ||
3038 pending_entry_ == entry_replaced_by_post_commit_error_.get());
arthursonzogni5c4c202d2017-04-25 23:41:273039
[email protected]022af742011-12-28 18:37:253040 return pending_entry_;
3041}
3042
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573043int NavigationControllerImpl::GetPendingEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:273044 // The pending entry index must always be less than the number of entries.
arthursonzogni5c4c202d2017-04-25 23:41:273045 DCHECK_LT(pending_entry_index_, GetEntryCount());
[email protected]a26023822011-12-29 00:23:553046 return pending_entry_index_;
3047}
3048
avi25764702015-06-23 15:43:373049void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:573050 std::unique_ptr<NavigationEntryImpl> entry,
Carlos IL42b416592019-10-07 23:10:363051 bool replace,
Dave Tapuska87696ae2021-11-18 18:48:313052 bool was_post_commit_error,
Rakina Zata Amnia4e27222021-12-22 01:05:003053 bool in_fenced_frame_tree,
3054 LoadCommittedDetails* commit_details) {
Dave Tapuska87696ae2021-11-18 18:48:313055 // Fenced frame trees should always have `ui::PAGE_TRANSITION_AUTO_SUBFRAME`
3056 // set because:
3057 // 1) They don't influence the history of the outer page.
3058 // 2) They are always replace only navigation (there is always only one entry
3059 // in their history stack).
3060 // 3) Are not top level navigations and appear similar to iframes.
3061 // Navigations of the fenced frame might create a new NavigationEntry, which
3062 // will call this function. Non fenced frame navigations will never have
3063 // `ui::PAGE_TRANSITION_AUTO_SUBFRAME` because they won't call
3064 // InsertOrReplaceEntry.
3065 DCHECK_EQ(in_fenced_frame_tree,
3066 ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
3067 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:203068
avi5cad4912015-06-19 05:25:443069 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
3070 // need to keep continuity with the pending entry, so copy the pending entry's
3071 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
3072 // then the renderer navigated on its own, independent of the pending entry,
3073 // so don't copy anything.
3074 if (pending_entry_ && pending_entry_index_ == -1)
3075 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:203076
Rakina Zata Amnia4e27222021-12-22 01:05:003077 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]765b35502008-08-21 00:51:203078
creisee17e932015-07-17 17:56:223079 // When replacing, don't prune the forward history.
Rakina Zata Amnie2d31312022-11-18 03:38:453080 if (replace || was_post_commit_error) {
Mikel Astizba9cf2fd2017-12-17 10:38:103081 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573082 entries_[last_committed_entry_index_].get(), entry.get());
Carlos IL42b416592019-10-07 23:10:363083 // If the new entry is a post-commit error page, we store the current last
3084 // committed entry to the side so that we can put it back when navigating
3085 // away from the error.
3086 if (was_post_commit_error) {
3087 DCHECK(!entry_replaced_by_post_commit_error_);
3088 entry_replaced_by_post_commit_error_ =
3089 std::move(entries_[last_committed_entry_index_]);
3090 }
dcheng36b6aec92015-12-26 06:16:363091 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:223092 return;
3093 }
[email protected]765b35502008-08-21 00:51:203094
creis37979a62015-08-04 19:48:183095 // We shouldn't see replace == true when there's no committed entries.
3096 DCHECK(!replace);
3097
Michael Thiessen9b14d512019-09-23 21:19:473098 PruneForwardEntries();
[email protected]765b35502008-08-21 00:51:203099
Shivani Sharmad8c8d652019-02-13 17:27:573100 PruneOldestSkippableEntryIfFull();
[email protected]765b35502008-08-21 00:51:203101
dcheng36b6aec92015-12-26 06:16:363102 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:203103 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:293104}
3105
Shivani Sharmad8c8d652019-02-13 17:27:573106void NavigationControllerImpl::PruneOldestSkippableEntryIfFull() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:163107 if (entries_.size() < max_entry_count())
3108 return;
3109
3110 DCHECK_EQ(max_entry_count(), entries_.size());
3111 DCHECK_GT(last_committed_entry_index_, 0);
Shivani Sharmad8c8d652019-02-13 17:27:573112 CHECK_EQ(pending_entry_index_, -1);
3113
3114 int index = 0;
Elly Fong-Jonesccc6d1f2021-06-14 18:32:423115 // Retrieve the oldest skippable entry.
3116 for (; index < GetEntryCount(); index++) {
3117 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
3118 break;
Shivani Sharmad8c8d652019-02-13 17:27:573119 }
3120
3121 // If there is no skippable entry or if it is the last committed entry then
3122 // fall back to pruning the oldest entry. It is not safe to prune the last
3123 // committed entry.
3124 if (index == GetEntryCount() || index == last_committed_entry_index_)
3125 index = 0;
3126
3127 bool should_succeed = RemoveEntryAtIndex(index);
3128 DCHECK_EQ(true, should_succeed);
3129
3130 NotifyPrunedEntries(this, index, 1);
[email protected]944822b2012-03-02 20:57:253131}
3132
clamy3cb9bea92018-07-10 12:42:023133void NavigationControllerImpl::NavigateToExistingPendingEntry(
Dave Tapuska8bfd84c2019-03-26 20:47:163134 ReloadType reload_type,
Nate Chapinbf682fa32022-09-26 22:41:203135 RenderFrameHostImpl* initiator_rfh,
Arthur Sonzognic686e8f2024-01-11 08:36:373136 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weiss8c573952022-11-17 17:35:133137 soft_navigation_heuristics_task_id,
Nate Chapinbf682fa32022-09-26 22:41:203138 const std::string* navigation_api_key) {
Alexander Timin3a92df72019-09-20 11:59:503139 TRACE_EVENT0("navigation",
3140 "NavigationControllerImpl::NavigateToExistingPendingEntry");
arthursonzogni5c4c202d2017-04-25 23:41:273141 DCHECK(pending_entry_);
clamy3cb9bea92018-07-10 12:42:023142 DCHECK(IsInitialNavigation() || pending_entry_index_ != -1);
Carlos IL42b416592019-10-07 23:10:363143 if (pending_entry_index_ != -1) {
3144 // The pending entry may not be in entries_ if a post-commit error page is
3145 // showing.
3146 DCHECK(pending_entry_ == entries_[pending_entry_index_].get() ||
3147 pending_entry_ == entry_replaced_by_post_commit_error_.get());
3148 }
Gyuyoung Kim107c2a02021-04-13 01:49:303149 DCHECK(!blink::IsRendererDebugURL(pending_entry_->GetURL()));
Alex Moshchuk3a4e77a2020-05-29 21:32:573150 bool is_forced_reload = needs_reload_;
[email protected]72097fd02010-01-21 23:36:013151 needs_reload_ = false;
Ali Hijazid87307d2022-11-07 20:15:033152 FrameTreeNode* root = frame_tree_->root();
Arthur Sonzogni620cec62018-12-13 13:08:573153 int nav_entry_id = pending_entry_->GetUniqueID();
Yoav Weiss8c573952022-11-17 17:35:133154 // Only pass down the soft_navigation_heuristics_task_id when the initiator is
3155 // the same as the top level frame being navigated.
3156 if (root->current_frame_host() != initiator_rfh) {
Arthur Sonzognic686e8f2024-01-11 08:36:373157 soft_navigation_heuristics_task_id = std::nullopt;
Yoav Weiss8c573952022-11-17 17:35:133158 }
Arthur Sonzogni620cec62018-12-13 13:08:573159
[email protected]83c2e232011-10-07 21:36:463160 // If we were navigating to a slow-to-commit page, and the user performs
3161 // a session history navigation to the last committed page, RenderViewHost
3162 // will force the throbber to start, but WebKit will essentially ignore the
3163 // navigation, and won't send a message to stop the throbber. To prevent this
3164 // from happening, we drop the navigation here and stop the slow-to-commit
3165 // page from loading (which would normally happen during the navigation).
clamy3cb9bea92018-07-10 12:42:023166 if (pending_entry_index_ == last_committed_entry_index_ &&
Lukasz Anforowicz6b75c0d2020-12-01 22:56:083167 !pending_entry_->IsRestored() &&
arthursonzogni5c4c202d2017-04-25 23:41:273168 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
Ali Hijazid87307d2022-11-07 20:15:033169 frame_tree_->StopLoading();
[email protected]6a13a6c2011-12-20 21:47:123170
[email protected]83c2e232011-10-07 21:36:463171 DiscardNonCommittedEntries();
3172 return;
3173 }
3174
Arthur Sonzognic686e8f2024-01-11 08:36:373175 std::optional<blink::LocalFrameToken> initiator_frame_token;
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333176 int initiator_process_id = ChildProcessHost::kInvalidUniqueID;
3177 if (initiator_rfh) {
3178 initiator_frame_token = initiator_rfh->GetFrameToken();
3179 initiator_process_id = initiator_rfh->GetProcess()->GetID();
3180 DCHECK(initiator_frame_token);
3181 }
3182
creisce0ef3572017-01-26 17:53:083183 // Compare FrameNavigationEntries to see which frames in the tree need to be
3184 // navigated.
clamy3cb9bea92018-07-10 12:42:023185 std::vector<std::unique_ptr<NavigationRequest>> same_document_loads;
3186 std::vector<std::unique_ptr<NavigationRequest>> different_document_loads;
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333187 FindFramesToNavigate(root, reload_type, initiator_frame_token,
3188 initiator_process_id, soft_navigation_heuristics_task_id,
3189 &same_document_loads, &different_document_loads);
creis4e2ecb72015-06-20 00:46:303190
3191 if (same_document_loads.empty() && different_document_loads.empty()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573192 // We were unable to match any frames to navigate. This can happen if a
3193 // history navigation targets a subframe that no longer exists
3194 // (https://crbug.com/705550). In this case, we need to update the current
3195 // history entry to the pending one but keep the main document loaded. We
3196 // also need to ensure that observers are informed about the updated
3197 // current history entry (e.g., for greying out back/forward buttons), and
3198 // that renderer processes update their history offsets. The easiest way
3199 // to do all that is to schedule a "redundant" same-document navigation in
3200 // the main frame.
3201 //
3202 // Note that we don't want to remove this history entry, as it might still
3203 // be valid later, since a frame that it's targeting may be recreated.
3204 //
3205 // TODO(alexmos, creis): This behavior isn't ideal, as the user would
3206 // need to repeat history navigations until finding the one that works.
3207 // Consider changing this behavior to keep looking for the first valid
3208 // history entry that finds frames to navigate.
clamy3cb9bea92018-07-10 12:42:023209 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:423210 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573211 root, pending_entry_, pending_entry_->GetFrameEntry(root),
Alex Moshchuk3a4e77a2020-05-29 21:32:573212 ReloadType::NONE /* reload_type */,
3213 true /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433214 false /* is_history_navigation_in_new_child */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333215 initiator_frame_token, initiator_process_id);
clamy3cb9bea92018-07-10 12:42:023216 if (!navigation_request) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573217 // If this navigation cannot start, delete the pending NavigationEntry.
clamy3cb9bea92018-07-10 12:42:023218 DiscardPendingEntry(false);
3219 return;
3220 }
Alex Moshchuk3a4e77a2020-05-29 21:32:573221 same_document_loads.push_back(std::move(navigation_request));
3222
3223 // Sanity check that we never take this branch for any kinds of reloads,
3224 // as those should've queued a different-document load in the main frame.
3225 DCHECK(!is_forced_reload);
3226 DCHECK_EQ(reload_type, ReloadType::NONE);
creis4e2ecb72015-06-20 00:46:303227 }
3228
Nate Chapinbf682fa32022-09-26 22:41:203229 // If the initiator is top-navigation sandboxed, then track whether this
Dave Tapuska8bfd84c2019-03-26 20:47:163230 // navigation affects any frame outside the frame's subtree.
Nate Chapinbf682fa32022-09-26 22:41:203231 if (initiator_rfh && initiator_rfh->IsSandboxed(
3232 network::mojom::WebSandboxFlags::kTopNavigation)) {
3233 bool navigates_inside_tree = DoesSandboxNavigationStayWithinSubtree(
3234 initiator_rfh, same_document_loads) &&
3235 DoesSandboxNavigationStayWithinSubtree(
3236 initiator_rfh, different_document_loads);
Dave Tapuska716ed3af2019-09-23 18:45:503237 // Count the navigations as web use counters so we can determine
Dave Tapuska8bfd84c2019-03-26 20:47:163238 // the number of pages that trigger this.
Nate Chapinbf682fa32022-09-26 22:41:203239 GetContentClient()->browser()->LogWebFeatureForCurrentPage(
3240 initiator_rfh,
3241 navigates_inside_tree
3242 ? blink::mojom::WebFeature::kSandboxBackForwardStaysWithinSubtree
3243 : blink::mojom::WebFeature::
3244 kSandboxBackForwardAffectsFramesOutsideSubtree);
Dave Tapuska855c1e12019-08-23 20:45:523245
3246 // If the navigation occurred outside the tree discard it because
3247 // the sandboxed frame didn't have permission to navigate outside
3248 // its tree. If it is possible that the navigation is both inside and
3249 // outside the frame tree and we discard it entirely because we don't
3250 // want to end up in a history state that didn't exist before.
Dominic Farolino057440042022-01-19 18:18:143251 if (!navigates_inside_tree) {
Nate Chapinbf682fa32022-09-26 22:41:203252 // If a |navigation_api_key| was provided, this navigation originated from
3253 // the navigation API. Notify the renderer that the navigation was
3254 // cancelled so the navigation API can fire an error event and reject the
3255 // relevant promise.
3256 if (navigation_api_key) {
3257 initiator_rfh->GetAssociatedLocalFrame()->TraverseCancelled(
3258 *navigation_api_key,
3259 blink::mojom::TraverseCancelledReason::kSandboxViolation);
3260 }
Dave Tapuska855c1e12019-08-23 20:45:523261 DiscardPendingEntry(false);
3262 return;
3263 }
Dave Tapuska8bfd84c2019-03-26 20:47:163264 }
3265
Nate Chapin6c43c022023-02-13 23:32:423266 // If it is possible that this traverse may involve a same-document navigation
3267 // in the initiator and there is a Navigation API key involved, then we may
3268 // need to notify the initiator if it fails. (The early returns above either
3269 // do not involve these cases or already notify the initiator.)
3270 // The event only needs to fire for the initiator, and only if the initiator
3271 // itself is performing a same-document navigation (because the event will not
3272 // fire if it navigates cross-document).
3273 if (navigation_api_key) {
3274 for (auto& item : same_document_loads) {
3275 if (item->frame_tree_node() == initiator_rfh->frame_tree_node()) {
3276 item->set_pending_navigation_api_key(*navigation_api_key);
3277 break;
3278 }
3279 }
3280 }
3281
Carlos Caballero539a421c2020-07-06 10:25:573282 // BackForwardCache:
3283 // Navigate immediately if the document is in the BackForwardCache.
Mingyu Lei7584b6b2023-04-13 03:02:563284 if (back_forward_cache_.GetOrEvictEntry(nav_entry_id).has_value()) {
Carlos Caballero539a421c2020-07-06 10:25:573285 TRACE_EVENT0("navigation", "BackForwardCache_CreateNavigationRequest");
3286 DCHECK_EQ(reload_type, ReloadType::NONE);
3287 auto navigation_request = CreateNavigationRequestFromEntry(
3288 root, pending_entry_, pending_entry_->GetFrameEntry(root),
3289 ReloadType::NONE, false /* is_same_document_history_load */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333290 false /* is_history_navigation_in_new_child */, initiator_frame_token,
3291 initiator_process_id);
Lukasz Anforowicz9ee83c272020-12-01 20:14:053292 root->navigator().Navigate(std::move(navigation_request), ReloadType::NONE);
Carlos Caballero539a421c2020-07-06 10:25:573293
3294 return;
3295 }
3296
3297 // History navigation might try to reuse a specific BrowsingInstance, already
3298 // used by a page in the cache. To avoid having two different main frames that
3299 // live in the same BrowsingInstance, evict the all pages with this
3300 // BrowsingInstance from the cache.
3301 //
3302 // For example, take the following scenario:
3303 //
3304 // A1 = Some page on a.com
3305 // A2 = Some other page on a.com
3306 // B3 = An uncacheable page on b.com
3307 //
3308 // Then the following navigations occur:
3309 // A1->A2->B3->A1
3310 // On the navigation from B3 to A1, A2 will remain in the cache (B3 doesn't
3311 // take its place) and A1 will be created in the same BrowsingInstance (and
3312 // SiteInstance), as A2.
3313 //
3314 // If we didn't do anything, both A1 and A2 would remain alive in the same
3315 // BrowsingInstance/SiteInstance, which is unsupported by
3316 // RenderFrameHostManager::CommitPending(). To avoid this conundrum, we evict
3317 // A2 from the cache.
3318 if (pending_entry_->site_instance()) {
3319 back_forward_cache_.EvictFramesInRelatedSiteInstances(
3320 pending_entry_->site_instance());
3321 }
3322
Rakina Zata Amnid605d462022-06-01 10:17:033323 SCOPED_CRASH_KEY_BOOL("nav_reentrancy", "pending_entry_restored",
3324 pending_entry_ && pending_entry_->IsRestored());
3325 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "pending_entry_id",
3326 pending_entry_ ? pending_entry_->GetUniqueID() : -1);
3327 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "pending_entry_index",
3328 pending_entry_index_);
3329 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "last_committed_index",
3330 last_committed_entry_index_);
3331 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "entries_size", entries_.size());
3332 SCOPED_CRASH_KEY_BOOL("nav_reentrancy", "pending_entry_initial",
3333 pending_entry_ && pending_entry_->IsInitialEntry());
3334 SCOPED_CRASH_KEY_BOOL(
3335 "nav_reentrancy", "pending_entry_initial2",
3336 pending_entry_ &&
3337 pending_entry_->IsInitialEntryNotForSynchronousAboutBlank());
3338 SCOPED_CRASH_KEY_BOOL("nav_reentrancy", "is_initial_nav",
3339 IsInitialNavigation());
3340 SCOPED_CRASH_KEY_BOOL("nav_reentrancy", "is_initial_blank_nav",
3341 IsInitialBlankNavigation());
3342 SCOPED_CRASH_KEY_BOOL("nav_reentrancy", "is_forced_reload", is_forced_reload);
3343 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "pending_reload_type",
3344 (int)pending_reload_);
3345
clamy3cb9bea92018-07-10 12:42:023346 // This call does not support re-entrancy. See http://crbug.com/347742.
3347 CHECK(!in_navigate_to_pending_entry_);
3348 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:303349
Rakina Zata Amnid605d462022-06-01 10:17:033350 // If the navigation-reentrancy is caused by calling
3351 // NavigateToExistingPendingEntry twice, this will note the previous call's
3352 // pending entry's ID.
3353 SCOPED_CRASH_KEY_NUMBER("nav_reentrancy", "prev_pending_entry_id",
3354 pending_entry_ ? pending_entry_->GetUniqueID() : -1);
3355
arthursonzogni66f711c2019-10-08 14:40:363356 // It is not possible to delete the pending NavigationEntry while navigating
3357 // to it. Grab a reference to delay potential deletion until the end of this
3358 // function.
3359 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
3360
Nate Chapin154b14b2023-02-17 18:28:163361 // If there is a main-frame same-document history navigation, we may defer
3362 // the subframe history navigations in order to give JS in the main frame the
3363 // opportunity to cancel the entire traverse via the navigate event. In that
3364 // case, we need to stash the main frame request's navigation token on the
3365 // subframes, so they can look up the main frame request and defer themselves
3366 // until it completes.
3367 if (!same_document_loads.empty() &&
3368 same_document_loads.at(0)->frame_tree_node()->IsMainFrame()) {
3369 NavigationRequest* main_frame_request = same_document_loads.at(0).get();
3370 // The token will only be returned in cases where deferring the navigation
3371 // is necessary.
3372 if (auto main_frame_same_document_token =
3373 main_frame_request->GetNavigationTokenForDeferringSubframes()) {
3374 for (auto& item : same_document_loads) {
3375 if (item.get() != main_frame_request) {
3376 item->set_main_frame_same_document_history_token(
3377 main_frame_same_document_token);
3378 }
3379 }
3380 for (auto& item : different_document_loads) {
3381 item->set_main_frame_same_document_history_token(
3382 main_frame_same_document_token);
3383 }
3384 }
3385 }
3386
William Liu122754942024-01-18 22:34:393387 if (!initiator_rfh) {
3388 // A browser-initiated navigation won't have a `initiator_rfh`.
3389 CountBrowserInitiatedMainframeAndSubframeHistoryNavigaions(
3390 different_document_loads, same_document_loads);
3391 }
3392
creis4e2ecb72015-06-20 00:46:303393 // Send all the same document frame loads before the different document loads.
clamy3cb9bea92018-07-10 12:42:023394 for (auto& item : same_document_loads) {
3395 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:053396 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:303397 }
clamy3cb9bea92018-07-10 12:42:023398 for (auto& item : different_document_loads) {
3399 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:053400 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:303401 }
clamy3cb9bea92018-07-10 12:42:023402
3403 in_navigate_to_pending_entry_ = false;
creis4e2ecb72015-06-20 00:46:303404}
3405
Alex Moshchuk3a4e77a2020-05-29 21:32:573406NavigationControllerImpl::HistoryNavigationAction
3407NavigationControllerImpl::DetermineActionForHistoryNavigation(
creis4e2ecb72015-06-20 00:46:303408 FrameTreeNode* frame,
Alex Moshchuk3a4e77a2020-05-29 21:32:573409 ReloadType reload_type) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:423410 RenderFrameHostImpl* render_frame_host = frame->current_frame_host();
Sreeja Kamishettydb8e2892021-03-10 09:30:583411 // Only active and prerendered documents are allowed to navigate in their
3412 // frame.
Sreeja Kamishetty8eacabb2021-03-09 11:45:423413 if (render_frame_host->lifecycle_state() !=
Sreeja Kamishetty299329ad2021-03-25 14:06:013414 RenderFrameHostImpl::LifecycleStateImpl::kPrerendering) {
Sreeja Kamishettydb8e2892021-03-10 09:30:583415 // - If the document is in pending deletion, the browser already committed
3416 // to destroying this RenderFrameHost. See https://crbug.com/930278.
3417 // - If the document is in back-forward cache, it's not allowed to navigate
3418 // as it should remain frozen. Ignore the request and evict the document
3419 // from back-forward cache.
Sreeja Kamishetty8eacabb2021-03-09 11:45:423420 //
Sreeja Kamishettydb8e2892021-03-10 09:30:583421 // If the document is inactive, there's no need to recurse into subframes,
Sreeja Kamishetty8eacabb2021-03-09 11:45:423422 // which should all be inactive as well.
Fergal Daly1336ac642021-09-14 15:13:113423 if (frame->current_frame_host()->IsInactiveAndDisallowActivation(
3424 DisallowActivationReasonId::kDetermineActionForHistoryNavigation)) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:423425 return HistoryNavigationAction::kStopLooking;
Fergal Daly1336ac642021-09-14 15:13:113426 }
Sreeja Kamishetty8eacabb2021-03-09 11:45:423427 }
arthursonzogni03f76152019-02-12 10:35:203428
Alex Moshchuk3a4e77a2020-05-29 21:32:573429 // Reloads should result in a different-document load. Note that reloads may
3430 // also happen via the |needs_reload_| mechanism where the reload_type is
3431 // NONE, so detect this by comparing whether we're going to the same
3432 // entry that we're currently on. Similarly to above, only main frames
3433 // should reach this. Note that subframes support reloads, but that's done
3434 // via a different path that doesn't involve FindFramesToNavigate (see
3435 // RenderFrameHost::Reload()).
3436 if (reload_type != ReloadType::NONE ||
3437 pending_entry_index_ == last_committed_entry_index_) {
3438 DCHECK(frame->IsMainFrame());
3439 return HistoryNavigationAction::kDifferentDocument;
3440 }
3441
Alex Moshchuk47d1a4bd2020-06-01 22:15:343442 // If there is no new FrameNavigationEntry for the frame, ignore the
3443 // load. For example, this may happen when going back to an entry before a
3444 // frame was created. Suppose we commit a same-document navigation that also
3445 // results in adding a new subframe somewhere in the tree. If we go back,
3446 // the new subframe will be missing a FrameNavigationEntry in the previous
3447 // NavigationEntry, but we shouldn't delete or change what's loaded in
3448 // it.
3449 //
Alex Moshchuke65c39272020-06-03 17:55:373450 // Note that in this case, there is no need to keep looking for navigations
3451 // in subframes, which would be missing FrameNavigationEntries as well.
3452 //
Alex Moshchuk47d1a4bd2020-06-01 22:15:343453 // It's important to check this before checking |old_item| below, since both
3454 // might be null, and in that case we still shouldn't change what's loaded in
3455 // this frame. Note that scheduling any loads assumes that |new_item| is
3456 // non-null. See https://crbug.com/1088354.
3457 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3458 if (!new_item)
Alex Moshchuke65c39272020-06-03 17:55:373459 return HistoryNavigationAction::kStopLooking;
Alex Moshchuk47d1a4bd2020-06-01 22:15:343460
Charlie Reisa474fb62022-03-17 02:31:363461 // Use the RenderFrameHost's last committed FrameNavigationEntry to identify
3462 // which history item it is currently on, since this may be different than the
3463 // FrameNavigationEntry for the frame in the last committed NavigationEntry
3464 // (e.g., if a history navigation is targeting multiple frames and only some
3465 // have committed so far).
creis4e2ecb72015-06-20 00:46:303466 FrameNavigationEntry* old_item =
Charlie Reisa474fb62022-03-17 02:31:363467 frame->current_frame_host()->last_committed_frame_entry();
3468 if (!old_item) {
3469 // In cases where the RenderFrameHost does not have a FrameNavigationEntry,
3470 // fall back to the last committed NavigationEntry's record for this frame.
3471 // This may happen in cases like the initial state of the RenderFrameHost.
3472 // TODO(https://crbug.com/1304466): Ensure the RenderFrameHost always has an
3473 // accurate FrameNavigationEntry and eliminate this case.
3474 old_item = GetLastCommittedEntry()->GetFrameEntry(frame);
3475 }
3476 // If neither approach finds a FrameNavigationEntry, schedule a
3477 // different-document load.
3478 // TODO(https://crbug.com/608402): Remove this case.
Alex Moshchuk3a4e77a2020-05-29 21:32:573479 if (!old_item)
3480 return HistoryNavigationAction::kDifferentDocument;
3481
Alex Moshchuk3a4e77a2020-05-29 21:32:573482 // If the new item is not in the same SiteInstance, schedule a
3483 // different-document load. Newly restored items may not have a SiteInstance
3484 // yet, in which case it will be assigned on first commit.
3485 if (new_item->site_instance() &&
3486 new_item->site_instance() != old_item->site_instance())
3487 return HistoryNavigationAction::kDifferentDocument;
3488
3489 // Schedule a different-document load if the current RenderFrameHost is not
danakj25c436d2021-04-01 16:35:313490 // live. This case can happen for Ctrl+Back or after a renderer crash. Note
3491 // that we do this even if the history navigation would not be modifying this
3492 // frame were it live.
3493 if (!frame->current_frame_host()->IsRenderFrameLive())
Alex Moshchuk3a4e77a2020-05-29 21:32:573494 return HistoryNavigationAction::kDifferentDocument;
3495
3496 if (new_item->item_sequence_number() != old_item->item_sequence_number()) {
danakj25c436d2021-04-01 16:35:313497 // Starting a navigation after a crash early-promotes the speculative
3498 // RenderFrameHost. Then we have a RenderFrameHost with no document in it
3499 // committed yet, so we can not possibly perform a same-document history
3500 // navigation. The frame would need to be reloaded with a cross-document
3501 // navigation.
3502 if (!frame->current_frame_host()->has_committed_any_navigation())
3503 return HistoryNavigationAction::kDifferentDocument;
3504
creis54131692016-08-12 18:32:253505 // Same document loads happen if the previous item has the same document
danakjb952ef12021-01-14 19:58:493506 // sequence number but different item sequence number.
3507 if (new_item->document_sequence_number() ==
3508 old_item->document_sequence_number()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573509 return HistoryNavigationAction::kSameDocument;
danakjb952ef12021-01-14 19:58:493510 }
avib48cb312016-05-05 21:35:003511
Alex Moshchuk3a4e77a2020-05-29 21:32:573512 // Otherwise, if both item and document sequence numbers differ, this
3513 // should be a different document load.
3514 return HistoryNavigationAction::kDifferentDocument;
3515 }
3516
3517 // If the item sequence numbers match, there is no need to navigate this
Alex Moshchuke65c39272020-06-03 17:55:373518 // frame. Keep looking for navigations in this frame's children.
Alex Moshchuk3a4e77a2020-05-29 21:32:573519 DCHECK_EQ(new_item->document_sequence_number(),
3520 old_item->document_sequence_number());
Alex Moshchuke65c39272020-06-03 17:55:373521 return HistoryNavigationAction::kKeepLooking;
Alex Moshchuk3a4e77a2020-05-29 21:32:573522}
3523
3524void NavigationControllerImpl::FindFramesToNavigate(
3525 FrameTreeNode* frame,
3526 ReloadType reload_type,
Arthur Sonzognic686e8f2024-01-11 08:36:373527 const std::optional<blink::LocalFrameToken>& initiator_frame_token,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333528 int initiator_process_id,
Arthur Sonzognic686e8f2024-01-11 08:36:373529 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weiss8c573952022-11-17 17:35:133530 soft_navigation_heuristics_task_id,
Alex Moshchuk3a4e77a2020-05-29 21:32:573531 std::vector<std::unique_ptr<NavigationRequest>>* same_document_loads,
3532 std::vector<std::unique_ptr<NavigationRequest>>* different_document_loads) {
3533 DCHECK(pending_entry_);
3534 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3535
3536 auto action = DetermineActionForHistoryNavigation(frame, reload_type);
3537
3538 if (action == HistoryNavigationAction::kSameDocument) {
3539 std::unique_ptr<NavigationRequest> navigation_request =
3540 CreateNavigationRequestFromEntry(
3541 frame, pending_entry_, new_item, reload_type,
Yoav Weiss8c573952022-11-17 17:35:133542 /*is_same_document_history_load=*/true,
3543 /*is_history_navigation_in_new_child_frame=*/false,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333544 initiator_frame_token, initiator_process_id,
3545 soft_navigation_heuristics_task_id);
Alex Moshchuk3a4e77a2020-05-29 21:32:573546 if (navigation_request) {
3547 // Only add the request if was properly created. It's possible for the
3548 // creation to fail in certain cases, e.g. when the URL is invalid.
3549 same_document_loads->push_back(std::move(navigation_request));
creis4e2ecb72015-06-20 00:46:303550 }
Alex Moshchuk3a4e77a2020-05-29 21:32:573551 } else if (action == HistoryNavigationAction::kDifferentDocument) {
Lei Zhang96031532019-10-10 19:05:473552 std::unique_ptr<NavigationRequest> navigation_request =
3553 CreateNavigationRequestFromEntry(
3554 frame, pending_entry_, new_item, reload_type,
3555 false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433556 false /* is_history_navigation_in_new_child */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333557 initiator_frame_token, initiator_process_id);
Lei Zhang96031532019-10-10 19:05:473558 if (navigation_request) {
3559 // Only add the request if was properly created. It's possible for the
3560 // creation to fail in certain cases, e.g. when the URL is invalid.
3561 different_document_loads->push_back(std::move(navigation_request));
3562 }
3563 // For a different document, the subframes will be destroyed, so there's
3564 // no need to consider them.
3565 return;
Alex Moshchuke65c39272020-06-03 17:55:373566 } else if (action == HistoryNavigationAction::kStopLooking) {
3567 return;
creis4e2ecb72015-06-20 00:46:303568 }
3569
Yoav Weiss8c573952022-11-17 17:35:133570 // Do not pass down the soft_navigation_heuristics_task_id to child frames, as
3571 // we currently only support soft navigation heuristics for the top level
3572 // frame.
creis4e2ecb72015-06-20 00:46:303573 for (size_t i = 0; i < frame->child_count(); i++) {
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:333574 FindFramesToNavigate(frame->child_at(i), reload_type, initiator_frame_token,
3575 initiator_process_id,
Arthur Sonzognic686e8f2024-01-11 08:36:373576 /*soft_navigation_heuristics_task_id=*/std::nullopt,
Nate Chapin45f620582021-09-30 17:45:433577 same_document_loads, different_document_loads);
creis4e2ecb72015-06-20 00:46:303578 }
3579}
3580
Harkiran Bolariaba823e42021-05-21 18:30:363581base::WeakPtr<NavigationHandle> NavigationControllerImpl::NavigateWithoutEntry(
clamy21718cc22018-06-13 13:34:243582 const LoadURLParams& params) {
3583 // Find the appropriate FrameTreeNode.
3584 FrameTreeNode* node = nullptr;
3585 if (params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId ||
3586 !params.frame_name.empty()) {
3587 node = params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId
Ali Hijazid87307d2022-11-07 20:15:033588 ? frame_tree_->FindByID(params.frame_tree_node_id)
3589 : frame_tree_->FindByName(params.frame_name);
Arthur Sonzognif6785ec2022-12-05 10:11:503590 DCHECK(!node || &node->frame_tree() == &frame_tree());
clamy21718cc22018-06-13 13:34:243591 }
3592
3593 // If no FrameTreeNode was specified, navigate the main frame.
3594 if (!node)
Ali Hijazid87307d2022-11-07 20:15:033595 node = frame_tree_->root();
clamy21718cc22018-06-13 13:34:243596
Camille Lamy5193caa2018-10-12 11:59:423597 // Compute overrides to the LoadURLParams for |override_user_agent|,
3598 // |should_replace_current_entry| and |has_user_gesture| that will be used
3599 // both in the creation of the NavigationEntry and the NavigationRequest.
3600 // Ideally, the LoadURLParams themselves would be updated, but since they are
3601 // passed as a const reference, this is not possible.
3602 // TODO(clamy): When we only create a NavigationRequest, move this to
3603 // CreateNavigationRequestFromLoadURLParams.
3604 bool override_user_agent = ShouldOverrideUserAgent(params.override_user_agent,
3605 GetLastCommittedEntry());
3606
Rakina Zata Amnie2d31312022-11-18 03:38:453607 // An entry replacement must happen if the current browsing context should
3608 // maintain a trivial session history.
shivanigithubf405bf0d2021-11-05 17:58:333609 bool should_replace_current_entry =
3610 (params.should_replace_current_entry ||
Rakina Zata Amnie2d31312022-11-18 03:38:453611 ShouldMaintainTrivialSessionHistory(node));
Camille Lamy5193caa2018-10-12 11:59:423612
clamy21718cc22018-06-13 13:34:243613 // Javascript URLs should not create NavigationEntries. All other navigations
3614 // do, including navigations to chrome renderer debug URLs.
clamy21718cc22018-06-13 13:34:243615 if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
Scott Violet5ae6c42e2020-10-28 02:47:373616 std::unique_ptr<NavigationEntryImpl> entry =
3617 CreateNavigationEntryFromLoadParams(node, params, override_user_agent,
3618 should_replace_current_entry,
3619 params.has_user_gesture);
clamy21718cc22018-06-13 13:34:243620 DiscardPendingEntry(false);
3621 SetPendingEntry(std::move(entry));
3622 }
3623
Tim Judkins59548192023-05-17 17:51:203624 // Renderer-debug URLs are sent to the current renderer process immediately
3625 // for processing and don't need to create a NavigationRequest. Note: this
3626 // includes navigations to JavaScript URLs, which are considered
clamy21718cc22018-06-13 13:34:243627 // renderer-debug URLs.
3628 // Note: we intentionally leave the pending entry in place for renderer debug
3629 // URLs, unlike the cases below where we clear it if the navigation doesn't
3630 // proceed.
Gyuyoung Kim107c2a02021-04-13 01:49:303631 if (blink::IsRendererDebugURL(params.url)) {
Oleg Davydov2cc0167b2019-02-05 14:32:483632 // Renderer-debug URLs won't go through NavigationThrottlers so we have to
3633 // check them explicitly. See bug 913334.
Aaron Colwelle1908d982020-06-26 22:08:153634 if (GetContentClient()->browser()->ShouldBlockRendererDebugURL(
Tim Judkins59548192023-05-17 17:51:203635 params.url, browser_context_, node->current_frame_host())) {
Oleg Davydov2cc0167b2019-02-05 14:32:483636 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363637 return nullptr;
Oleg Davydov2cc0167b2019-02-05 14:32:483638 }
3639
clamy21718cc22018-06-13 13:34:243640 HandleRendererDebugURL(node, params.url);
Harkiran Bolariaba823e42021-05-21 18:30:363641 return nullptr;
clamy21718cc22018-06-13 13:34:243642 }
3643
Antonio Sartori78a749f2020-11-30 12:03:393644 DCHECK(pending_entry_);
3645
clamy21718cc22018-06-13 13:34:243646 // Convert navigations to the current URL to a reload.
3647 // TODO(clamy): We should be using FrameTreeNode::IsMainFrame here instead of
3648 // relying on the frame tree node id from LoadURLParams. Unfortunately,
3649 // DevTools sometimes issues navigations to main frames that they do not
3650 // expect to see treated as reload, and it only works because they pass a
3651 // FrameTreeNode id in their LoadURLParams. Change this once they no longer do
3652 // that. See https://crbug.com/850926.
Robert Ogden011a8082019-01-23 19:04:543653 ReloadType reload_type = params.reload_type;
3654 if (reload_type == ReloadType::NONE &&
3655 ShouldTreatNavigationAsReload(
Fergal Daly766177d2020-07-07 07:54:043656 node, params.url, pending_entry_->GetVirtualURL(),
clamy21718cc22018-06-13 13:34:243657 params.base_url_for_data_url, params.transition_type,
clamy21718cc22018-06-13 13:34:243658 params.load_type ==
3659 NavigationController::LOAD_TYPE_HTTP_POST /* is_post */,
Hayato Ito7a80db42021-07-05 06:18:543660 should_replace_current_entry, GetLastCommittedEntry())) {
clamy21718cc22018-06-13 13:34:243661 reload_type = ReloadType::NORMAL;
Alexander Timinb70f67382020-12-10 00:03:473662 pending_entry_->set_reload_type(reload_type);
Antonio Sartori78a749f2020-11-30 12:03:393663
3664 // If this is a reload of an existing FrameNavigationEntry and we had a
3665 // policy container for it, then we should copy it into the pending entry,
3666 // so that it is copied to the navigation request in
3667 // CreateNavigationRequestFromLoadParams later.
Rakina Zata Amnie2d31312022-11-18 03:38:453668 FrameNavigationEntry* previous_frame_entry =
3669 GetLastCommittedEntry()->GetFrameEntry(node);
3670 if (previous_frame_entry &&
3671 previous_frame_entry->policy_container_policies()) {
3672 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
3673 previous_frame_entry->policy_container_policies()->ClonePtr());
Antonio Sartori78a749f2020-11-30 12:03:393674 }
3675 }
3676
3677 // If this navigation is an "Enter-in-omnibox" with the initial about:blank
Rakina Zata Amniafd3c6582021-11-30 06:19:173678 // document, then we should copy the document polices from RenderFrameHost's
3679 // PolicyContainerHost. The NavigationRequest will create a new
3680 // PolicyContainerHost with the document policies from the |pending_entry_|,
3681 // and that PolicyContainerHost will be put in the final RenderFrameHost for
3682 // the navigation. This way, we ensure that we keep enforcing the right
3683 // policies on the initial empty document after the reload.
Rakina Zata Amnie2d31312022-11-18 03:38:453684 if (GetLastCommittedEntry()->IsInitialEntry() && params.url.IsAboutBlank()) {
Antonio Sartori78a749f2020-11-30 12:03:393685 if (node->current_frame_host() &&
3686 node->current_frame_host()->policy_container_host()) {
Titouan Rigoudy6ec70402021-02-02 15:42:193687 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
Antonio Sartori5d09b30f2021-03-02 09:27:163688 node->current_frame_host()
3689 ->policy_container_host()
3690 ->policies()
Titouan Rigoudy72f892d2022-05-02 18:21:233691 .ClonePtr());
Antonio Sartori78a749f2020-11-30 12:03:393692 }
clamy21718cc22018-06-13 13:34:243693 }
3694
3695 // navigation_ui_data should only be present for main frame navigations.
Ian Vollick1c6dd3e2022-04-13 02:06:263696 DCHECK(node->IsOutermostMainFrame() || !params.navigation_ui_data);
clamy21718cc22018-06-13 13:34:243697
Tsuyoshi Horo167ca6432022-03-09 05:16:393698 // This will be used to set the Navigation Timing API navigationStart
3699 // parameter for browser navigations in new tabs (intents, tabs opened through
3700 // "Open link in new tab"). If the navigation must wait on the current
3701 // RenderFrameHost to execute its BeforeUnload event, the navigation start
3702 // will be updated when the BeforeUnload ack is received.
3703 const auto navigation_start_time = base::TimeTicks::Now();
3704
Camille Lamy5193caa2018-10-12 11:59:423705 std::unique_ptr<NavigationRequest> request =
3706 CreateNavigationRequestFromLoadParams(
3707 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:143708 params.has_user_gesture, network::mojom::SourceLocation::New(),
Tsuyoshi Horo167ca6432022-03-09 05:16:393709 reload_type, pending_entry_, pending_entry_->GetFrameEntry(node),
3710 navigation_start_time);
clamy21718cc22018-06-13 13:34:243711
3712 // If the navigation couldn't start, return immediately and discard the
3713 // pending NavigationEntry.
3714 if (!request) {
3715 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363716 return nullptr;
clamy21718cc22018-06-13 13:34:243717 }
3718
Camille Lamy5193caa2018-10-12 11:59:423719#if DCHECK_IS_ON()
3720 // Safety check that NavigationRequest and NavigationEntry match.
3721 ValidateRequestMatchesEntry(request.get(), pending_entry_);
3722#endif
3723
clamy21718cc22018-06-13 13:34:243724 // This call does not support re-entrancy. See http://crbug.com/347742.
3725 CHECK(!in_navigate_to_pending_entry_);
3726 in_navigate_to_pending_entry_ = true;
3727
arthursonzogni66f711c2019-10-08 14:40:363728 // It is not possible to delete the pending NavigationEntry while navigating
3729 // to it. Grab a reference to delay potential deletion until the end of this
3730 // function.
3731 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
3732
Harkiran Bolariaba823e42021-05-21 18:30:363733 base::WeakPtr<NavigationHandle> created_navigation_handle(
3734 request->GetWeakPtr());
Lukasz Anforowicz9ee83c272020-12-01 20:14:053735 node->navigator().Navigate(std::move(request), reload_type);
clamy21718cc22018-06-13 13:34:243736
3737 in_navigate_to_pending_entry_ = false;
Harkiran Bolariaba823e42021-05-21 18:30:363738 return created_navigation_handle;
clamy21718cc22018-06-13 13:34:243739}
3740
clamyea99ea12018-05-28 13:54:233741void NavigationControllerImpl::HandleRendererDebugURL(
3742 FrameTreeNode* frame_tree_node,
3743 const GURL& url) {
3744 if (!frame_tree_node->current_frame_host()->IsRenderFrameLive()) {
clamy21718cc22018-06-13 13:34:243745 // Any renderer-side debug URLs or javascript: URLs should be ignored if
3746 // the renderer process is not live, unless it is the initial navigation
3747 // of the tab.
clamyea99ea12018-05-28 13:54:233748 if (!IsInitialNavigation()) {
3749 DiscardNonCommittedEntries();
3750 return;
3751 }
Fergal Dalyecd3b0202020-06-25 01:57:373752 // The current frame is always a main frame. If IsInitialNavigation() is
3753 // true then there have been no navigations and any frames of this tab must
3754 // be in the same renderer process. If that has crashed then the only frame
3755 // that can be revived is the main frame.
3756 frame_tree_node->render_manager()
3757 ->InitializeMainRenderFrameForImmediateUse();
clamyea99ea12018-05-28 13:54:233758 }
Julie Jeongeun Kim50d124c2022-10-21 13:51:223759
3760 // Several tests expect a load of Chrome Debug URLs to send a DidStopLoading
3761 // notification, so set is loading to true here to properly surface it when
3762 // the renderer process is done handling the URL.
3763 // TODO(crbug.com/1254130): Remove the test dependency on this behavior.
3764 if (!url.SchemeIs(url::kJavaScriptScheme)) {
Julie Jeongeun Kim50d124c2022-10-21 13:51:223765 frame_tree_node->current_frame_host()->SetIsLoadingForRendererDebugURL();
Julie Jeongeun Kim50d124c2022-10-21 13:51:223766 }
clamyea99ea12018-05-28 13:54:233767 frame_tree_node->current_frame_host()->HandleRendererDebugURL(url);
3768}
3769
clamy21718cc22018-06-13 13:34:243770std::unique_ptr<NavigationEntryImpl>
3771NavigationControllerImpl::CreateNavigationEntryFromLoadParams(
3772 FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:423773 const LoadURLParams& params,
3774 bool override_user_agent,
3775 bool should_replace_current_entry,
3776 bool has_user_gesture) {
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393777 // Browser initiated navigations might not have a blob_url_loader_factory set
3778 // in params even if the navigation is to a blob URL. If that happens, lookup
3779 // the correct url loader factory to use here.
3780 auto blob_url_loader_factory = params.blob_url_loader_factory;
Kinuko Yasuda7d925ea22019-08-01 10:08:483781 if (!blob_url_loader_factory && params.url.SchemeIsBlob()) {
Marijn Kruisselbrink8ffda442020-09-03 18:29:473782 // Resolve the blob URL in the storage partition associated with the target
3783 // frame. This is the storage partition the URL will be loaded in, and only
3784 // URLs that can be resolved by it should be able to access its data.
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393785 blob_url_loader_factory = ChromeBlobStorageContext::URLLoaderFactoryForUrl(
Marijn Kruisselbrink8ffda442020-09-03 18:29:473786 node->current_frame_host()->GetStoragePartition(), params.url);
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393787 }
3788
clamy21718cc22018-06-13 13:34:243789 std::unique_ptr<NavigationEntryImpl> entry;
Tommy C. Li03eee77a2019-02-05 02:07:443790 // extra_headers in params are \n separated; navigation entries want \r\n.
3791 std::string extra_headers_crlf;
3792 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
clamy21718cc22018-06-13 13:34:243793
3794 // For subframes, create a pending entry with a corresponding frame entry.
3795 if (!node->IsMainFrame()) {
Rakina Zata Amnie2d31312022-11-18 03:38:453796 entry = GetLastCommittedEntry()->Clone();
clamy21718cc22018-06-13 13:34:243797 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:083798 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
clamy21718cc22018-06-13 13:34:243799 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
Arthur Sonzognic686e8f2024-01-11 08:36:373800 params.url, std::nullopt, params.referrer, params.initiator_origin,
W. James MacLean23e90a12022-12-21 04:38:213801 params.initiator_base_url, params.redirect_chain, blink::PageState(),
3802 "GET", -1, blob_url_loader_factory,
Antonio Sartori78a749f2020-11-30 12:03:393803 // If in NavigateWithoutEntry we later determine that this navigation is
Charlie Reis7e2cb6d2021-01-26 01:27:163804 // a conversion of a new navigation into a reload, we will set the right
3805 // document policies there.
Titouan Rigoudy6ec70402021-02-02 15:42:193806 nullptr /* policy_container_policies */);
clamy21718cc22018-06-13 13:34:243807 } else {
3808 // Otherwise, create a pending entry for the main frame.
Julie Jeongeun Kim5b9aff72022-05-02 02:10:173809 // If `node` is the outermost main frame, it rewrites a virtual url in order
3810 // to adjust the original input url if needed. For inner frames such as
3811 // fenced frames or subframes, they don't rewrite urls as the urls are not
3812 // input urls by users.
3813 bool rewrite_virtual_urls = node->IsOutermostMainFrame();
Sharon Yang242ef822023-05-15 21:07:323814 scoped_refptr<SiteInstance> source_site_instance =
3815 params.source_site_instance;
Arthur Sonzognic686e8f2024-01-11 08:36:373816 std::optional<GURL> source_process_site_url = std::nullopt;
Sharon Yang242ef822023-05-15 21:07:323817 if (source_site_instance && source_site_instance->HasProcess()) {
3818 source_process_site_url =
3819 source_site_instance->GetProcess()->GetProcessLock().site_url();
3820 }
clamy21718cc22018-06-13 13:34:243821 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz435bcb582019-07-12 20:50:063822 params.url, params.referrer, params.initiator_origin,
Sharon Yang242ef822023-05-15 21:07:323823 params.initiator_base_url, source_process_site_url,
W. James MacLean23e90a12022-12-21 04:38:213824 params.transition_type, params.is_renderer_initiated,
3825 extra_headers_crlf, browser_context_, blob_url_loader_factory,
3826 rewrite_virtual_urls));
clamy21718cc22018-06-13 13:34:243827 entry->set_source_site_instance(
3828 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
3829 entry->SetRedirectChain(params.redirect_chain);
3830 }
3831
3832 // Set the FTN ID (only used in non-site-per-process, for tests).
3833 entry->set_frame_tree_node_id(node->frame_tree_node_id());
clamy21718cc22018-06-13 13:34:243834 entry->set_should_clear_history_list(params.should_clear_history_list);
Camille Lamy5193caa2018-10-12 11:59:423835 entry->SetIsOverridingUserAgent(override_user_agent);
3836 entry->set_has_user_gesture(has_user_gesture);
Robert Ogden011a8082019-01-23 19:04:543837 entry->set_reload_type(params.reload_type);
clamy21718cc22018-06-13 13:34:243838
clamy21718cc22018-06-13 13:34:243839 switch (params.load_type) {
3840 case LOAD_TYPE_DEFAULT:
3841 break;
3842 case LOAD_TYPE_HTTP_POST:
3843 entry->SetHasPostData(true);
3844 entry->SetPostData(params.post_data);
3845 break;
3846 case LOAD_TYPE_DATA:
3847 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
3848 entry->SetVirtualURL(params.virtual_url_for_data_url);
Xiaohan Wang7f8052e02022-01-14 18:44:283849#if BUILDFLAG(IS_ANDROID)
clamy21718cc22018-06-13 13:34:243850 entry->SetDataURLAsString(params.data_url_as_string);
3851#endif
3852 entry->SetCanLoadLocalResources(params.can_load_local_resources);
3853 break;
clamy21718cc22018-06-13 13:34:243854 }
3855
3856 // TODO(clamy): NavigationEntry is meant for information that will be kept
3857 // after the navigation ended and therefore is not appropriate for
3858 // started_from_context_menu. Move started_from_context_menu to
3859 // NavigationUIData.
3860 entry->set_started_from_context_menu(params.started_from_context_menu);
3861
3862 return entry;
3863}
3864
clamyea99ea12018-05-28 13:54:233865std::unique_ptr<NavigationRequest>
Camille Lamy5193caa2018-10-12 11:59:423866NavigationControllerImpl::CreateNavigationRequestFromLoadParams(
3867 FrameTreeNode* node,
3868 const LoadURLParams& params,
3869 bool override_user_agent,
3870 bool should_replace_current_entry,
3871 bool has_user_gesture,
Antonio Sartori2f763d9d2021-04-21 10:04:143872 network::mojom::SourceLocationPtr source_location,
Camille Lamy5193caa2018-10-12 11:59:423873 ReloadType reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573874 NavigationEntryImpl* entry,
Tsuyoshi Horo167ca6432022-03-09 05:16:393875 FrameNavigationEntry* frame_entry,
Nan Lin944e9b4e2022-04-12 13:51:223876 base::TimeTicks navigation_start_time,
Garrett Tanzer405f3402022-07-21 20:12:493877 bool is_embedder_initiated_fenced_frame_navigation,
Sergey Poromovdd557c12023-03-01 11:28:453878 bool is_unfenced_top_navigation,
Camillia Smith Barnes6a643962023-03-03 00:28:583879 bool is_container_initiated,
Arthur Sonzognic686e8f2024-01-11 08:36:373880 std::optional<std::u16string> embedder_shared_storage_context) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573881 DCHECK_EQ(-1, GetIndexOfEntry(entry));
Camille Lamyb9ed3c52018-11-19 15:34:283882 DCHECK(frame_entry);
Nasko Oskov3c2f9e252019-01-10 17:45:533883 // All renderer-initiated navigations must have an initiator_origin.
3884 DCHECK(!params.is_renderer_initiated || params.initiator_origin.has_value());
Camille Lamyff7c4822018-11-07 15:42:513885
Camille Lamy5193caa2018-10-12 11:59:423886 GURL url_to_load;
3887 GURL virtual_url;
Nasko Oskov03912102019-01-11 00:21:323888
Camille Lamy2baa8022018-10-19 16:43:173889 // For main frames, rewrite the URL if necessary and compute the virtual URL
3890 // that should be shown in the address bar.
Ian Vollick1c6dd3e2022-04-13 02:06:263891 if (node->IsOutermostMainFrame()) {
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423892 bool ignored_reverse_on_redirect = false;
Camille Lamy2baa8022018-10-19 16:43:173893 RewriteUrlForNavigation(params.url, browser_context_, &url_to_load,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423894 &virtual_url, &ignored_reverse_on_redirect);
Camille Lamy5193caa2018-10-12 11:59:423895
Camille Lamy2baa8022018-10-19 16:43:173896 // For DATA loads, override the virtual URL.
3897 if (params.load_type == LOAD_TYPE_DATA)
3898 virtual_url = params.virtual_url_for_data_url;
Camille Lamy5193caa2018-10-12 11:59:423899
Camille Lamy2baa8022018-10-19 16:43:173900 if (virtual_url.is_empty())
3901 virtual_url = url_to_load;
3902
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573903 CHECK(virtual_url == entry->GetVirtualURL());
Camille Lamyb9ed3c52018-11-19 15:34:283904
Aran Gilman249eb122019-12-02 23:32:463905 // This is a LOG and not a CHECK/DCHECK as URL rewrite has non-deterministic
3906 // behavior: it is possible for two calls to RewriteUrlForNavigation to
3907 // return different results, leading to a different URL in the
3908 // NavigationRequest and FrameEntry. This will be fixed once we remove the
3909 // pending NavigationEntry, as we'll only make one call to
3910 // RewriteUrlForNavigation.
3911 VLOG_IF(1, (url_to_load != frame_entry->url()))
3912 << "NavigationRequest and FrameEntry have different URLs: "
3913 << url_to_load << " vs " << frame_entry->url();
Camille Lamyb9ed3c52018-11-19 15:34:283914
Camille Lamy2baa8022018-10-19 16:43:173915 // TODO(clamy): In order to remove the pending NavigationEntry,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423916 // |virtual_url| and |ignored_reverse_on_redirect| should be stored in the
Camille Lamy2baa8022018-10-19 16:43:173917 // NavigationRequest.
3918 } else {
3919 url_to_load = params.url;
3920 virtual_url = params.url;
Camille Lamyf664f7622019-01-07 19:28:243921 CHECK(!frame_entry || url_to_load == frame_entry->url());
Camille Lamy2baa8022018-10-19 16:43:173922 }
Camille Lamy5193caa2018-10-12 11:59:423923
Ehsan Karamad44fc72112019-02-26 18:15:473924 if (node->render_manager()->is_attaching_inner_delegate()) {
3925 // Avoid starting any new navigations since this node is now preparing for
3926 // attaching an inner delegate.
3927 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:203928 }
Camille Lamy5193caa2018-10-12 11:59:423929
Alex Moshchuk99242832023-05-22 17:21:443930 if (!IsValidURLForNavigation(node, virtual_url, url_to_load)) {
Camille Lamy5193caa2018-10-12 11:59:423931 return nullptr;
Alex Moshchuk99242832023-05-22 17:21:443932 }
Camille Lamy5193caa2018-10-12 11:59:423933
danakjd83d706d2020-11-25 22:11:123934 // Look for a pending commit that is to another document in this
3935 // FrameTreeNode. If one exists, then the last committed URL will not be the
3936 // current URL by the time this navigation commits.
3937 bool has_pending_cross_document_commit =
3938 node->render_manager()->HasPendingCommitForCrossDocumentNavigation();
Miyoung Shina2dd6a42021-10-07 12:19:213939 bool is_currently_error_page = node->current_frame_host()->IsErrorDocument();
danakjd83d706d2020-11-25 22:11:123940
Minggang Wangb9f3fa92021-07-01 15:30:313941 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjb952ef12021-01-14 19:58:493942 /*old_url=*/node->current_url(),
3943 /*new_url=*/url_to_load, reload_type, entry, *frame_entry,
3944 has_pending_cross_document_commit, is_currently_error_page,
Garrett Tanzer267c2b82022-07-26 16:53:133945 /*is_same_document_history_load=*/false,
3946 is_embedder_initiated_fenced_frame_navigation,
3947 is_unfenced_top_navigation);
Camille Lamy5193caa2018-10-12 11:59:423948
3949 // Create the NavigationParams based on |params|.
3950
Hiroki Nakagawa4ed61282021-06-18 05:37:233951 bool is_view_source_mode = entry->IsViewSourceMode();
3952 DCHECK_EQ(is_view_source_mode, virtual_url.SchemeIs(kViewSourceScheme));
Charlie Harrison8c113a32019-01-07 16:08:293953
Antonio Sartori6984c742021-08-26 08:03:413954 blink::NavigationDownloadPolicy download_policy = params.download_policy;
Yao Xiao720ef9d62022-12-09 05:18:293955
Hiroki Nakagawa4ed61282021-06-18 05:37:233956 // Update |download_policy| if the virtual URL is view-source.
Charlie Harrison8c113a32019-01-07 16:08:293957 if (is_view_source_mode)
Yeunjoo Choi3df791a2021-02-17 07:07:253958 download_policy.SetDisallowed(blink::NavigationDownloadType::kViewSource);
Charlie Harrison8c113a32019-01-07 16:08:293959
Minggang Wangb9f3fa92021-07-01 15:30:313960 blink::mojom::CommonNavigationParamsPtr common_params =
3961 blink::mojom::CommonNavigationParams::New(
W. James MacLean23e90a12022-12-21 04:38:213962 url_to_load, params.initiator_origin, params.initiator_base_url,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513963 blink::mojom::Referrer::New(params.referrer.url,
3964 params.referrer.policy),
Scott Violetcf6ea7e2021-06-09 21:09:213965 params.transition_type, navigation_type, download_policy,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513966 should_replace_current_entry, params.base_url_for_data_url,
Tsuyoshi Horo167ca6432022-03-09 05:16:393967 navigation_start_time,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513968 params.load_type == LOAD_TYPE_HTTP_POST ? "POST" : "GET",
Antonio Sartori2f763d9d2021-04-21 10:04:143969 params.post_data, std::move(source_location),
arthursonzogniaf7c62c52020-02-12 10:49:413970 params.started_from_context_menu, has_user_gesture,
Antonio Sartori636adba2021-03-09 12:15:273971 false /* has_text_fragment_token */,
3972 network::mojom::CSPDisposition::CHECK, std::vector<int>(),
3973 params.href_translate,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513974 false /* is_history_navigation_in_new_child_frame */,
Chris Fredricksonb52bcd02023-03-28 14:48:053975 params.input_start, network::mojom::RequestDestination::kEmpty);
Camille Lamy5193caa2018-10-12 11:59:423976
Minggang Wangb9f3fa92021-07-01 15:30:313977 blink::mojom::CommitNavigationParamsPtr commit_params =
3978 blink::mojom::CommitNavigationParams::New(
Arthur Sonzognic686e8f2024-01-11 08:36:373979 std::nullopt,
Ari Chivukula43d2cf82023-01-24 03:16:073980 // The correct storage key and session storage key will be computed
3981 // before committing the navigation.
3982 blink::StorageKey(), blink::StorageKey(), override_user_agent,
3983 params.redirect_chain,
Lucas Furukawa Gadani81e294b2019-08-29 16:26:323984 std::vector<network::mojom::URLResponseHeadPtr>(),
jongdeok.kim5de823b32022-06-14 04:37:503985 std::vector<net::RedirectInfo>(), params.post_content_type,
3986 common_params->url, common_params->method,
3987 params.can_load_local_resources,
Minggang Wangb9f3fa92021-07-01 15:30:313988 frame_entry->page_state().ToEncodedData(), entry->GetUniqueID(),
Yoav Weiss8c573952022-11-17 17:35:133989 entry->GetSubframeUniqueNames(node),
3990 /*intended_as_new_entry=*/true,
3991 /*pending_history_list_offset=*/-1,
Lucas Furukawa Gadania9c45682019-07-31 22:05:143992 params.should_clear_history_list ? -1 : GetLastCommittedEntryIndex(),
3993 params.should_clear_history_list ? 0 : GetEntryCount(),
Yoav Weiss8c573952022-11-17 17:35:133994 /*was_discarded=*/false, is_view_source_mode,
Minggang Wangb9f3fa92021-07-01 15:30:313995 params.should_clear_history_list,
3996 blink::mojom::NavigationTiming::New(),
Minggang Wangf59db47b2021-06-16 01:56:223997 blink::mojom::WasActivatedOption::kUnknown,
Yoav Weiss8c573952022-11-17 17:35:133998 /*navigation_token=*/base::UnguessableToken::Create(),
Minggang Wang7ee0c742021-06-16 16:16:513999 std::vector<blink::mojom::PrefetchedSignedExchangeInfoPtr>(),
Xiaohan Wang7f8052e02022-01-14 18:44:284000#if BUILDFLAG(IS_ANDROID)
Yoav Weiss8c573952022-11-17 17:35:134001 /*data_url_as_string=*/std::string(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:144002#endif
Yoav Weiss8c573952022-11-17 17:35:134003 /*is_browser_initiated=*/!params.is_renderer_initiated,
Yoav Weiss8c573952022-11-17 17:35:134004 /*document_ukm_source_id=*/ukm::kInvalidSourceId,
Jiewei Qian0406fc02020-03-09 06:02:074005 node->pending_frame_policy(),
Yoav Weiss8c573952022-11-17 17:35:134006 /*force_enabled_origin_trials=*/std::vector<std::string>(),
4007 /*origin_agent_cluster=*/false,
4008 /*origin_agent_cluster_left_as_default=*/true,
4009 /*enabled_client_hints=*/
4010 std::vector<network::mojom::WebClientHintsType>(),
Liam Brady38b84562024-03-07 22:11:264011 /*is_cross_site_cross_browsing_context_group=*/false,
4012 /*should_have_sticky_user_activation=*/false,
4013 /*old_page_info=*/nullptr,
Yoav Weiss8c573952022-11-17 17:35:134014 /*http_response_code=*/-1,
Domenic Denicolacd30f5f82022-03-16 21:48:014015 blink::mojom::NavigationApiHistoryEntryArrays::New(),
Yoav Weiss8c573952022-11-17 17:35:134016 /*early_hints_preloaded_resources=*/std::vector<GURL>(),
Clark DuVall8ee487a22021-11-10 02:25:584017 // This timestamp will be populated when the commit IPC is sent.
Yoav Weiss8c573952022-11-17 17:35:134018 /*commit_sent=*/base::TimeTicks(), /*srcdoc_value=*/std::string(),
Yoav Weiss8c573952022-11-17 17:35:134019 /*should_load_data_url=*/false,
Victor Tan10d93aca2022-08-12 16:46:284020 /*ancestor_or_self_has_cspee=*/node->AncestorOrSelfHasCSPEE(),
Yoav Weiss8c573952022-11-17 17:35:134021 /*reduced_accept_language=*/std::string(),
William Liu2c825472022-10-31 12:01:444022 /*navigation_delivery_type=*/
Khushal Sagar7b26135c62022-11-08 20:25:424023 network::mojom::NavigationDeliveryType::kDefault,
Arthur Sonzognic686e8f2024-01-11 08:36:374024 /*view_transition_state=*/std::nullopt,
4025 /*soft_navigation_heuristics_task_id=*/std::nullopt,
sbinglera07ae732022-12-02 20:49:054026 /*modified_runtime_features=*/
Jiewei Qian87951f52023-10-17 01:33:464027 base::flat_map<::blink::mojom::RuntimeFeature, bool>(),
Arthur Sonzognic686e8f2024-01-11 08:36:374028 /*fenced_frame_properties=*/std::nullopt,
Chris Fredricksonb52bcd02023-03-28 14:48:054029 /*not_restored_reasons=*/nullptr,
Arthur Hemeryd51484b2023-06-02 15:50:004030 /*load_with_storage_access=*/false,
Arthur Sonzognic686e8f2024-01-11 08:36:374031 /*browsing_context_group_info=*/std::nullopt,
Nan Linda394ba2023-11-03 21:17:374032 /*lcpp_hint=*/nullptr, blink::CreateDefaultRendererContentSettings(),
Kyra800d1d012024-03-27 17:05:484033 /*cookie_deprecation_label=*/std::nullopt,
4034 /*visited_link_salt=*/std::nullopt);
Xiaohan Wang7f8052e02022-01-14 18:44:284035#if BUILDFLAG(IS_ANDROID)
Camille Lamy5193caa2018-10-12 11:59:424036 if (ValidateDataURLAsString(params.data_url_as_string)) {
danakj529a3eba2024-04-18 20:14:564037 commit_params->data_url_as_string = params.data_url_as_string->as_string();
Camille Lamy5193caa2018-10-12 11:59:424038 }
4039#endif
4040
Lucas Furukawa Gadania9c45682019-07-31 22:05:144041 commit_params->was_activated = params.was_activated;
Mike Jacksone2aa7af2023-05-17 06:45:074042 commit_params->navigation_timing->system_entropy_at_navigation_start =
4043 SystemEntropyUtils::ComputeSystemEntropyForFrameTreeNode(
4044 node, params.suggested_system_entropy);
Camille Lamy5193caa2018-10-12 11:59:424045
Camille Lamy5193caa2018-10-12 11:59:424046 // extra_headers in params are \n separated; NavigationRequests want \r\n.
4047 std::string extra_headers_crlf;
4048 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
Yao Xiaodc5ed102019-06-04 19:19:094049
Alex Moshchuk9321e6a2022-12-07 21:58:314050 auto navigation_request = NavigationRequest::Create(
Lucas Furukawa Gadania9c45682019-07-31 22:05:144051 node, std::move(common_params), std::move(commit_params),
Takashi Toyoshimae87b7be2021-01-22 11:51:084052 !params.is_renderer_initiated, params.was_opener_suppressed,
Hiroshige Hayashizakif07ad7812023-05-10 02:26:094053 params.initiator_frame_token, params.initiator_process_id,
4054 extra_headers_crlf, frame_entry, entry, params.is_form_submission,
John Delaney50425f82020-04-07 16:26:214055 params.navigation_ui_data ? params.navigation_ui_data->Clone() : nullptr,
Yao Xiao720ef9d62022-12-09 05:18:294056 params.impression, params.initiator_activation_and_ad_status,
Sergey Poromovdd557c12023-03-01 11:28:454057 params.is_pdf, is_embedder_initiated_fenced_frame_navigation,
Camillia Smith Barnes6a643962023-03-03 00:28:584058 is_container_initiated, embedder_shared_storage_context);
Yao Xiaodc5ed102019-06-04 19:19:094059 navigation_request->set_from_download_cross_origin_redirect(
4060 params.from_download_cross_origin_redirect);
W. James MacLean00568d72022-02-24 19:36:554061 navigation_request->set_force_new_browsing_instance(
4062 params.force_new_browsing_instance);
Yao Xiaodc5ed102019-06-04 19:19:094063 return navigation_request;
Camille Lamy5193caa2018-10-12 11:59:424064}
4065
4066std::unique_ptr<NavigationRequest>
4067NavigationControllerImpl::CreateNavigationRequestFromEntry(
clamyea99ea12018-05-28 13:54:234068 FrameTreeNode* frame_tree_node,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574069 NavigationEntryImpl* entry,
clamyea99ea12018-05-28 13:54:234070 FrameNavigationEntry* frame_entry,
4071 ReloadType reload_type,
4072 bool is_same_document_history_load,
Nate Chapin45f620582021-09-30 17:45:434073 bool is_history_navigation_in_new_child_frame,
Arthur Sonzognic686e8f2024-01-11 08:36:374074 const std::optional<blink::LocalFrameToken>& initiator_frame_token,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:334075 int initiator_process_id,
Arthur Sonzognic686e8f2024-01-11 08:36:374076 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weiss8c573952022-11-17 17:35:134077 soft_navigation_heuristics_task_id) {
Alex Moshchuk47d1a4bd2020-06-01 22:15:344078 DCHECK(frame_entry);
clamyea99ea12018-05-28 13:54:234079 GURL dest_url = frame_entry->url();
Rakina Zata Amnif297a802022-01-18 03:53:434080 // We should never navigate to an existing initial NavigationEntry that is the
4081 // initial NavigationEntry for the initial empty document that hasn't been
4082 // overridden by the synchronous about:blank commit, to preserve previous
4083 // behavior where trying to reload when the main frame is on the initial empty
4084 // document won't result in a navigation.
4085 // See also https://crbug.com/1277414.
4086 DCHECK(!entry->IsInitialEntryNotForSynchronousAboutBlank());
Nasko Oskov03912102019-01-11 00:21:324087
clamyea99ea12018-05-28 13:54:234088 Referrer dest_referrer = frame_entry->referrer();
clamyea99ea12018-05-28 13:54:234089
Ehsan Karamad44fc72112019-02-26 18:15:474090 if (frame_tree_node->render_manager()->is_attaching_inner_delegate()) {
4091 // Avoid starting any new navigations since this node is now preparing for
4092 // attaching an inner delegate.
4093 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:204094 }
4095
Alex Moshchuk99242832023-05-22 17:21:444096 if (!IsValidURLForNavigation(frame_tree_node, entry->GetVirtualURL(),
4097 dest_url)) {
clamyea99ea12018-05-28 13:54:234098 return nullptr;
4099 }
4100
clamyea99ea12018-05-28 13:54:234101 // This will be used to set the Navigation Timing API navigationStart
4102 // parameter for browser navigations in new tabs (intents, tabs opened through
4103 // "Open link in new tab"). If the navigation must wait on the current
4104 // RenderFrameHost to execute its BeforeUnload event, the navigation start
4105 // will be updated when the BeforeUnload ack is received.
Mike Jacksone2aa7af2023-05-17 06:45:074106
clamyea99ea12018-05-28 13:54:234107 base::TimeTicks navigation_start = base::TimeTicks::Now();
Mike Jacksone2aa7af2023-05-17 06:45:074108 const auto navigation_start_system_entropy =
4109 SystemEntropyUtils::ComputeSystemEntropyForFrameTreeNode(
4110 frame_tree_node, blink::mojom::SystemEntropy::kNormal);
clamyea99ea12018-05-28 13:54:234111
danakjd83d706d2020-11-25 22:11:124112 // Look for a pending commit that is to another document in this
4113 // FrameTreeNode. If one exists, then the last committed URL will not be the
4114 // current URL by the time this navigation commits.
4115 bool has_pending_cross_document_commit =
4116 frame_tree_node->render_manager()
4117 ->HasPendingCommitForCrossDocumentNavigation();
danakjb952ef12021-01-14 19:58:494118 bool is_currently_error_page =
Miyoung Shina2dd6a42021-10-07 12:19:214119 frame_tree_node->current_frame_host()->IsErrorDocument();
danakjd83d706d2020-11-25 22:11:124120
Minggang Wangb9f3fa92021-07-01 15:30:314121 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjd83d706d2020-11-25 22:11:124122 /*old_url=*/frame_tree_node->current_url(),
4123 /*new_url=*/dest_url, reload_type, entry, *frame_entry,
danakjb952ef12021-01-14 19:58:494124 has_pending_cross_document_commit, is_currently_error_page,
Garrett Tanzer405f3402022-07-21 20:12:494125 is_same_document_history_load,
Garrett Tanzer267c2b82022-07-26 16:53:134126 /*is_embedder_initiated_fenced_frame_navigation=*/false,
Garrett Tanzer405f3402022-07-21 20:12:494127 /*is_unfenced_top_navigation=*/false);
Camille Lamy5193caa2018-10-12 11:59:424128
4129 // A form submission may happen here if the navigation is a
4130 // back/forward/reload navigation that does a form resubmission.
4131 scoped_refptr<network::ResourceRequestBody> request_body;
4132 std::string post_content_type;
jongdeok.kim5de823b32022-06-14 04:37:504133 // TODO(https://crbug.com/931209) Store |is_form_submission| in the history
4134 // entry. This way, it could be directly retrieved here. Right now, it is only
4135 // partially recovered when request.method == "POST" and request.body exists.
4136 bool is_form_submission = false;
Camille Lamy5193caa2018-10-12 11:59:424137 if (frame_entry->method() == "POST") {
4138 request_body = frame_entry->GetPostData(&post_content_type);
4139 // Might have a LF at end.
Peter Kastingb53b81912021-04-28 19:23:304140 post_content_type = std::string(
4141 base::TrimWhitespaceASCII(post_content_type, base::TRIM_ALL));
jongdeok.kim5de823b32022-06-14 04:37:504142 is_form_submission = !!request_body;
Camille Lamy5193caa2018-10-12 11:59:424143 }
4144
4145 // Create the NavigationParams based on |entry| and |frame_entry|.
Minggang Wangb9f3fa92021-07-01 15:30:314146 blink::mojom::CommonNavigationParamsPtr common_params =
Lucas Furukawa Gadanief8290a2019-07-29 20:27:514147 entry->ConstructCommonNavigationParams(
4148 *frame_entry, request_body, dest_url,
4149 blink::mojom::Referrer::New(dest_referrer.url, dest_referrer.policy),
Tarun Bansalbcd62c82022-01-18 17:27:384150 navigation_type, navigation_start,
Charlie Hu5ffc0152019-12-06 15:59:534151 base::TimeTicks() /* input_start */);
Lucas Furukawa Gadanief8290a2019-07-29 20:27:514152 common_params->is_history_navigation_in_new_child_frame =
Arthur Hemerybee4a752019-05-29 10:50:554153 is_history_navigation_in_new_child_frame;
Camille Lamy5193caa2018-10-12 11:59:424154
4155 // TODO(clamy): |intended_as_new_entry| below should always be false once
4156 // Reload no longer leads to this being called for a pending NavigationEntry
4157 // of index -1.
Minggang Wangb9f3fa92021-07-01 15:30:314158 blink::mojom::CommitNavigationParamsPtr commit_params =
Lucas Furukawa Gadania9c45682019-07-31 22:05:144159 entry->ConstructCommitNavigationParams(
Rakina Zata Amnic7367852022-11-07 17:10:404160 *frame_entry, common_params->url, common_params->method,
4161 entry->GetSubframeUniqueNames(frame_tree_node),
Lucas Furukawa Gadania9c45682019-07-31 22:05:144162 GetPendingEntryIndex() == -1 /* intended_as_new_entry */,
Charlie Hu5ffc0152019-12-06 15:59:534163 GetIndexOfEntry(entry), GetLastCommittedEntryIndex(), GetEntryCount(),
Liam Bradyd2a41e152022-07-19 13:58:484164 frame_tree_node->pending_frame_policy(),
Yoav Weiss8c573952022-11-17 17:35:134165 frame_tree_node->AncestorOrSelfHasCSPEE(),
Mike Jacksone2aa7af2023-05-17 06:45:074166 navigation_start_system_entropy, soft_navigation_heuristics_task_id);
Lucas Furukawa Gadania9c45682019-07-31 22:05:144167 commit_params->post_content_type = post_content_type;
Mike Jacksone2aa7af2023-05-17 06:45:074168 commit_params->navigation_timing->system_entropy_at_navigation_start =
4169 SystemEntropyUtils::ComputeSystemEntropyForFrameTreeNode(
4170 frame_tree_node, blink::mojom::SystemEntropy::kNormal);
Camille Lamy5193caa2018-10-12 11:59:424171
W. James MacLeanb7d6092682022-10-05 15:23:264172 if (common_params->url.IsAboutSrcdoc()) {
4173 // TODO(wjmaclean): initialize this in NavigationRequest's constructor
4174 // instead.
W. James MacLean81b8d01f2022-01-25 20:50:594175 commit_params->srcdoc_value = frame_tree_node->srcdoc_value();
W. James MacLeanb7d6092682022-10-05 15:23:264176 }
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:334177 const bool is_browser_initiated = !initiator_frame_token;
Alex Moshchuk9321e6a2022-12-07 21:58:314178 return NavigationRequest::Create(
Lucas Furukawa Gadania9c45682019-07-31 22:05:144179 frame_tree_node, std::move(common_params), std::move(commit_params),
Nate Chapin45f620582021-09-30 17:45:434180 is_browser_initiated, false /* was_opener_suppressed */,
Hiroshige Hayashizaki5466bfe82023-05-17 00:34:334181 initiator_frame_token, initiator_process_id, entry->extra_headers(),
4182 frame_entry, entry, is_form_submission, nullptr /* navigation_ui_data */,
Arthur Sonzognic686e8f2024-01-11 08:36:374183 std::nullopt /* impression */,
Yao Xiao720ef9d62022-12-09 05:18:294184 blink::mojom::NavigationInitiatorActivationAndAdStatus::
4185 kDidNotStartWithTransientActivation,
Daniel Hosseinianf0fbfb42021-09-08 02:20:474186 false /* is_pdf */);
clamyea99ea12018-05-28 13:54:234187}
4188
[email protected]d202a7c2012-01-04 07:53:474189void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:214190 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:274191 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:404192
Takashi Toyoshimaea534ef22021-07-21 03:27:594193 // We need to notify the ssl_manager_ before the WebContents so the
[email protected]df1af242009-05-01 00:11:404194 // location bar will have up-to-date information about the security style
4195 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:134196 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:404197
Abhijeet Kandalkar3dc6e602022-11-09 05:08:374198 delegate_->NotifyNavigationStateChangedFromController(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:574199 delegate_->NotifyNavigationEntryCommitted(*details);
initial.commit09911bf2008-07-26 23:55:294200}
4201
initial.commit09911bf2008-07-26 23:55:294202// static
[email protected]d202a7c2012-01-04 07:53:474203size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:234204 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
Aran Gilman37d11632019-10-08 23:07:154205 return max_entry_count_for_testing_;
Miyoung Shin1c565c912021-03-17 12:11:214206 return blink::kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:234207}
4208
[email protected]d202a7c2012-01-04 07:53:474209void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:224210 if (is_active && needs_reload_)
4211 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:294212}
4213
[email protected]d202a7c2012-01-04 07:53:474214void NavigationControllerImpl::LoadIfNecessary() {
Rakina Zata Amnid605d462022-06-01 10:17:034215 SCOPED_CRASH_KEY_BOOL("nav_reentrancy_caller1", "LoadIf_pending",
4216 !!pending_entry_);
initial.commit09911bf2008-07-26 23:55:294217 if (!needs_reload_)
4218 return;
4219
Bo Liucdfa4b12018-11-06 00:21:444220 UMA_HISTOGRAM_ENUMERATION("Navigation.LoadIfNecessaryType",
4221 needs_reload_type_);
4222
initial.commit09911bf2008-07-26 23:55:294223 // Calling Reload() results in ignoring state, and not loading.
4224 // Explicitly use NavigateToPendingEntry so that the renderer uses the
4225 // cached state.
avicc872d7242015-08-19 21:26:344226 if (pending_entry_) {
Yoav Weiss8c573952022-11-17 17:35:134227 NavigateToExistingPendingEntry(
4228 ReloadType::NONE,
4229 /*initiator_rfh=*/nullptr,
Arthur Sonzognic686e8f2024-01-11 08:36:374230 /*soft_navigation_heuristics_task_id=*/std::nullopt,
Yoav Weiss8c573952022-11-17 17:35:134231 /*navigation_api_key=*/nullptr);
Rakina Zata Amnie2d31312022-11-18 03:38:454232 } else if (!GetLastCommittedEntry()
Rakina Zata Amnif297a802022-01-18 03:53:434233 ->IsInitialEntryNotForSynchronousAboutBlank()) {
arthursonzogni5c4c202d2017-04-25 23:41:274234 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:344235 pending_entry_index_ = last_committed_entry_index_;
Yoav Weiss8c573952022-11-17 17:35:134236 NavigateToExistingPendingEntry(
4237 ReloadType::NONE,
4238 /*initiator_rfh=*/nullptr,
Arthur Sonzognic686e8f2024-01-11 08:36:374239 /*soft_navigation_heuristics_task_id=*/std::nullopt,
Yoav Weiss8c573952022-11-17 17:35:134240 /*navigation_api_key=*/nullptr);
avicc872d7242015-08-19 21:26:344241 } else {
Rakina Zata Amnif297a802022-01-18 03:53:434242 // We should never navigate to an existing initial NavigationEntry that is
4243 // the initial NavigationEntry for the initial empty document that hasn't
4244 // been overridden by the synchronous about:blank commit, to preserve
4245 // legacy behavior where trying to reload when the main frame is on the
4246 // initial empty document won't result in a navigation. See also
4247 // https://crbug.com/1277414. If there is something to reload, the
4248 // successful reload will clear the |needs_reload_| flag. Otherwise, just do
4249 // it here.
avicc872d7242015-08-19 21:26:344250 needs_reload_ = false;
4251 }
initial.commit09911bf2008-07-26 23:55:294252}
4253
Kevin McNeeccca6172021-10-19 17:11:144254base::WeakPtr<NavigationHandle>
4255NavigationControllerImpl::LoadPostCommitErrorPage(
Carlos IL42b416592019-10-07 23:10:364256 RenderFrameHost* render_frame_host,
4257 const GURL& url,
Lei Zhanga4770832023-07-19 18:02:364258 const std::string& error_page_html) {
Rakina Zata Amni919b7922020-12-11 09:03:134259 RenderFrameHostImpl* rfhi =
4260 static_cast<RenderFrameHostImpl*>(render_frame_host);
Sreeja Kamishettydb8e2892021-03-10 09:30:584261
4262 // Only active documents can load post-commit error pages:
4263 // - If the document is in pending deletion, the browser already committed to
4264 // destroying this RenderFrameHost so ignore loading the error page.
4265 // - If the document is in back-forward cache, it's not allowed to navigate as
4266 // it should remain frozen. Ignore the request and evict the document from
4267 // back-forward cache.
4268 // - If the document is prerendering, it can navigate but when loading error
4269 // pages, cancel prerendering.
Fergal Daly1336ac642021-09-14 15:13:114270 if (rfhi->IsInactiveAndDisallowActivation(
4271 DisallowActivationReasonId::kLoadPostCommitErrorPage)) {
Kevin McNeeccca6172021-10-19 17:11:144272 return nullptr;
Fergal Daly1336ac642021-09-14 15:13:114273 }
Sreeja Kamishettydb8e2892021-03-10 09:30:584274
Rakina Zata Amni919b7922020-12-11 09:03:134275 FrameTreeNode* node = rfhi->frame_tree_node();
John Delaney131ad362019-08-08 21:57:414276
Minggang Wangb9f3fa92021-07-01 15:30:314277 blink::mojom::CommonNavigationParamsPtr common_params =
Minggang Wanga13c796e2021-07-02 05:54:434278 blink::CreateCommonNavigationParams();
Rakina Zata Amnid2da1542020-12-23 00:52:594279 // |url| might be empty, such as when LoadPostCommitErrorPage happens before
4280 // the frame actually committed (e.g. iframe with "src" set to a
4281 // slow-responding URL). We should rewrite the URL to about:blank in this
4282 // case, as the renderer will only think a page is an error page if it has a
4283 // non-empty unreachable URL.
Rakina Zata Amni919b7922020-12-11 09:03:134284 common_params->url = url.is_empty() ? GURL("about:blank") : url;
Minggang Wangb9f3fa92021-07-01 15:30:314285 blink::mojom::CommitNavigationParamsPtr commit_params =
Minggang Wanga13c796e2021-07-02 05:54:434286 blink::CreateCommitNavigationParams();
Antonio Sartori58591c892021-04-21 06:54:334287 commit_params->original_url = common_params->url;
John Delaney131ad362019-08-08 21:57:414288
Mike Jacksone2aa7af2023-05-17 06:45:074289 commit_params->navigation_timing->system_entropy_at_navigation_start =
4290 SystemEntropyUtils::ComputeSystemEntropyForFrameTreeNode(
4291 node, blink::mojom::SystemEntropy::kNormal);
4292
arthursonzogni70ac7302020-05-28 08:49:054293 // TODO(arthursonzogni): Consider providing the minimal capabilities to the
4294 // error pages.
Liam Brady34639ec92023-10-13 19:50:454295 commit_params->frame_policy = node->pending_frame_policy();
arthursonzogni70ac7302020-05-28 08:49:054296
John Delaney131ad362019-08-08 21:57:414297 std::unique_ptr<NavigationRequest> navigation_request =
4298 NavigationRequest::CreateBrowserInitiated(
4299 node, std::move(common_params), std::move(commit_params),
Hiroshige Hayashizakif07ad7812023-05-10 02:26:094300 false /* was_opener_suppressed */, "" /* extra_headers */,
4301 nullptr /* frame_entry */, nullptr /* entry */,
4302 false /* is_form_submission */, nullptr /* navigation_ui_data */,
Arthur Sonzognic686e8f2024-01-11 08:36:374303 std::nullopt /* impression */, false /* is_pdf */);
Carlos IL42b416592019-10-07 23:10:364304 navigation_request->set_post_commit_error_page_html(error_page_html);
Lei Zhanga4770832023-07-19 18:02:364305 navigation_request->set_net_error(net::ERR_BLOCKED_BY_CLIENT);
Charlie Reis09952ee2022-12-08 16:35:074306 node->TakeNavigationRequest(std::move(navigation_request));
John Delaney131ad362019-08-08 21:57:414307 DCHECK(node->navigation_request());
Kevin McNeeccca6172021-10-19 17:11:144308
4309 // Calling BeginNavigation may destroy the NavigationRequest.
4310 base::WeakPtr<NavigationRequest> created_navigation_request(
4311 node->navigation_request()->GetWeakPtr());
John Delaney131ad362019-08-08 21:57:414312 node->navigation_request()->BeginNavigation();
Kevin McNeeccca6172021-10-19 17:11:144313 return created_navigation_request;
John Delaney131ad362019-08-08 21:57:414314}
4315
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574316void NavigationControllerImpl::NotifyEntryChanged(NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:214317 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:094318 det.changed_entry = entry;
Aran Gilman37d11632019-10-08 23:07:154319 det.index = GetIndexOfEntry(NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:144320 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:294321}
4322
[email protected]d202a7c2012-01-04 07:53:474323void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:364324 RestoreType type) {
Charlie Reis23c26da2022-01-29 00:57:474325 // TODO(https://crbug.com/1287624): Don't allow an index of -1, which would
4326 // represent a no-committed-entry state.
4327 DCHECK(selected_index >= -1 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:364328 ConfigureEntriesForRestore(&entries_, type);
Charlie Reis23c26da2022-01-29 00:57:474329 // TODO(https://crbug.com/1287624): This will be pointing to the wrong entry
4330 // if `entries_` contains pre-existing entries from the NavigationController
4331 // before restore, which would not be removed and will be at the front of the
4332 // entries list, causing the index to be off by the amount of pre-existing
4333 // entries in the list. Fix this to point to the correct entry.
initial.commit09911bf2008-07-26 23:55:294334 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:294335}
[email protected]765b35502008-08-21 00:51:204336
arthursonzogni69a6a1b2019-09-17 09:23:004337void NavigationControllerImpl::DiscardNonCommittedEntries() {
Rakina Zata Amnia4e27222021-12-22 01:05:004338 DiscardNonCommittedEntriesWithCommitDetails(nullptr /* commit_details */);
4339}
4340
4341void NavigationControllerImpl::DiscardNonCommittedEntriesWithCommitDetails(
4342 LoadCommittedDetails* commit_details) {
Michael Thiessen9b14d512019-09-23 21:19:474343 // Avoid sending a notification if there is nothing to discard.
Michael Thiessenc5676d22019-09-25 22:32:104344 // TODO(mthiesse): Temporarily checking failed_pending_entry_id_ to help
4345 // diagnose https://bugs.chromium.org/p/chromium/issues/detail?id=1007570.
Carlos IL4dea8902020-05-26 15:14:294346 if (!pending_entry_ && failed_pending_entry_id_ == 0) {
Michael Thiessen9b14d512019-09-23 21:19:474347 return;
Michael Thiessenc5676d22019-09-25 22:32:104348 }
avi45a72532015-04-07 21:01:454349 DiscardPendingEntry(false);
Rakina Zata Amnidaa84f62022-02-17 00:55:314350
4351 if (!delegate_)
4352 return;
Abhijeet Kandalkar3dc6e602022-11-09 05:08:374353 delegate_->NotifyNavigationStateChangedFromController(INVALIDATE_TYPE_ALL);
[email protected]b12eb222013-09-10 00:11:484354}
4355
avi7c6f35e2015-05-08 17:52:384356int NavigationControllerImpl::GetEntryIndexWithUniqueID(
4357 int nav_entry_id) const {
4358 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
4359 if (entries_[i]->GetUniqueID() == nav_entry_id)
4360 return i;
4361 }
4362 return -1;
4363}
4364
[email protected]d202a7c2012-01-04 07:53:474365void NavigationControllerImpl::InsertEntriesFrom(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574366 NavigationControllerImpl* source,
[email protected]e1cd5452010-08-26 18:03:254367 int max_index) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574368 DCHECK_LE(max_index, source->GetEntryCount());
Kevin McNee433daf242023-10-31 20:15:594369 NavigationEntryRestoreContextImpl context;
[email protected]e1cd5452010-08-26 18:03:254370 for (int i = 0; i < max_index; i++) {
Nate Chapin9f169072021-06-09 19:32:374371 // Normally, cloning a NavigationEntryImpl results in sharing
4372 // FrameNavigationEntries between the original and the clone. However, when
4373 // cloning from a different NavigationControllerImpl, we want to fork the
4374 // FrameNavigationEntries.
Nate Chapin9f169072021-06-09 19:32:374375 entries_.insert(entries_.begin() + i,
Kevin McNee433daf242023-10-31 20:15:594376 source->entries_[i]->CloneWithoutSharing(&context));
[email protected]e1cd5452010-08-26 18:03:254377 }
Rakina Zata Amnie2d31312022-11-18 03:38:454378 DCHECK_GE(entries_.size(), 1u);
arthursonzogni5c4c202d2017-04-25 23:41:274379 DCHECK(pending_entry_index_ == -1 ||
4380 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:254381}
[email protected]c5b88d82012-10-06 17:03:334382
4383void NavigationControllerImpl::SetGetTimestampCallbackForTest(
Makoto Shimazud2aa2202019-10-09 13:57:184384 const base::RepeatingCallback<base::Time()>& get_timestamp_callback) {
[email protected]c5b88d82012-10-06 17:03:334385 get_timestamp_callback_ = get_timestamp_callback;
4386}
[email protected]8ff00d72012-10-23 19:12:214387
Shivani Sharmaffb32b82019-04-09 16:58:474388// History manipulation intervention:
4389void NavigationControllerImpl::SetShouldSkipOnBackForwardUIIfNeeded(
Shivani Sharmaffb32b82019-04-09 16:58:474390 bool replace_entry,
Shivani Sharmaeef521b2024-01-18 13:03:564391 bool previous_document_had_history_intervention_activation,
Alexander Timine3ec4192020-04-20 16:39:404392 bool is_renderer_initiated,
4393 ukm::SourceId previous_page_load_ukm_source_id) {
Shivani Sharmaeef521b2024-01-18 13:03:564394 // Note that for a subframe,
4395 // previous_document_had_history_intervention_activation is true if the
Shivani Sharma712d5d72019-04-16 21:56:454396 // gesture happened in any subframe (propagated to main frame) or in the main
4397 // frame itself.
Shivani Sharmaeef521b2024-01-18 13:03:564398 if (replace_entry || previous_document_had_history_intervention_activation ||
shivanigithubcceeacf2020-03-06 20:00:274399 !is_renderer_initiated) {
Shivani Sharmaffb32b82019-04-09 16:58:474400 return;
4401 }
4402 if (last_committed_entry_index_ == -1)
4403 return;
4404
Shivani Sharmac4cc8922019-04-18 03:11:174405 SetSkippableForSameDocumentEntries(last_committed_entry_index_, true);
Shivani Sharmaffb32b82019-04-09 16:58:474406
Alexander Timine3ec4192020-04-20 16:39:404407 // Log UKM with the URL we are navigating away from.
4408 ukm::builders::HistoryManipulationIntervention(
4409 previous_page_load_ukm_source_id)
4410 .Record(ukm::UkmRecorder::Get());
Shivani Sharmaffb32b82019-04-09 16:58:474411}
4412
Shivani Sharmac4cc8922019-04-18 03:11:174413void NavigationControllerImpl::SetSkippableForSameDocumentEntries(
4414 int reference_index,
4415 bool skippable) {
4416 auto* reference_entry = GetEntryAtIndex(reference_index);
4417 reference_entry->set_should_skip_on_back_forward_ui(skippable);
4418
4419 int64_t document_sequence_number =
4420 reference_entry->root_node()->frame_entry->document_sequence_number();
4421 for (int index = 0; index < GetEntryCount(); index++) {
4422 auto* entry = GetEntryAtIndex(index);
4423 if (entry->root_node()->frame_entry->document_sequence_number() ==
4424 document_sequence_number) {
4425 entry->set_should_skip_on_back_forward_ui(skippable);
4426 }
4427 }
4428}
4429
arthursonzogni66f711c2019-10-08 14:40:364430std::unique_ptr<NavigationControllerImpl::PendingEntryRef>
4431NavigationControllerImpl::ReferencePendingEntry() {
4432 DCHECK(pending_entry_);
4433 auto pending_entry_ref =
4434 std::make_unique<PendingEntryRef>(weak_factory_.GetWeakPtr());
4435 pending_entry_refs_.insert(pending_entry_ref.get());
4436 return pending_entry_ref;
4437}
4438
4439void NavigationControllerImpl::PendingEntryRefDeleted(PendingEntryRef* ref) {
4440 // Ignore refs that don't correspond to the current pending entry.
4441 auto it = pending_entry_refs_.find(ref);
4442 if (it == pending_entry_refs_.end())
4443 return;
4444 pending_entry_refs_.erase(it);
4445
4446 if (!pending_entry_refs_.empty())
4447 return;
4448
4449 // The pending entry may be deleted before the last PendingEntryRef.
4450 if (!pending_entry_)
4451 return;
4452
4453 // We usually clear the pending entry when the matching NavigationRequest
4454 // fails, so that an arbitrary URL isn't left visible above a committed page.
4455 //
4456 // However, we do preserve the pending entry in some cases, such as on the
4457 // initial navigation of an unmodified blank tab. We also allow the delegate
4458 // to say when it's safe to leave aborted URLs in the omnibox, to let the
4459 // user edit the URL and try again. This may be useful in cases that the
4460 // committed page cannot be attacker-controlled. In these cases, we still
4461 // allow the view to clear the pending entry and typed URL if the user
4462 // requests (e.g., hitting Escape with focus in the address bar).
4463 //
4464 // Do not leave the pending entry visible if it has an invalid URL, since this
4465 // might be formatted in an unexpected or unsafe way.
4466 // TODO(creis): Block navigations to invalid URLs in https://crbug.com/850824.
arthursonzogni66f711c2019-10-08 14:40:364467 bool should_preserve_entry =
4468 (pending_entry_ == GetVisibleEntry()) &&
4469 pending_entry_->GetURL().is_valid() &&
4470 (IsUnmodifiedBlankTab() || delegate_->ShouldPreserveAbortedURLs());
4471 if (should_preserve_entry)
4472 return;
4473
4474 DiscardPendingEntry(true);
Abhijeet Kandalkar3dc6e602022-11-09 05:08:374475 delegate_->NotifyNavigationStateChangedFromController(INVALIDATE_TYPE_URL);
arthursonzogni66f711c2019-10-08 14:40:364476}
4477
Titouan Rigoudy6ec70402021-02-02 15:42:194478std::unique_ptr<PolicyContainerPolicies>
4479NavigationControllerImpl::ComputePolicyContainerPoliciesForFrameEntry(
Antonio Sartori78a749f2020-11-30 12:03:394480 RenderFrameHostImpl* rfh,
4481 bool is_same_document,
Rakina Zata Amniafd3c6582021-11-30 06:19:174482 const GURL& url) {
Antonio Sartori78a749f2020-11-30 12:03:394483 if (is_same_document) {
Rakina Zata Amnie2d31312022-11-18 03:38:454484 DCHECK(GetLastCommittedEntry());
Antonio Sartori78a749f2020-11-30 12:03:394485 FrameNavigationEntry* previous_frame_entry =
4486 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
4487
4488 // TODO(https://crbug.com/608402): Remove this nullptr check when we can
4489 // ensure we always have a FrameNavigationEntry here.
4490 if (!previous_frame_entry)
4491 return nullptr;
4492
Titouan Rigoudy6ec70402021-02-02 15:42:194493 const PolicyContainerPolicies* previous_policies =
4494 previous_frame_entry->policy_container_policies();
Antonio Sartori78a749f2020-11-30 12:03:394495
Titouan Rigoudy6ec70402021-02-02 15:42:194496 if (!previous_policies)
Antonio Sartori78a749f2020-11-30 12:03:394497 return nullptr;
4498
4499 // Make a copy of the policy container for the new FrameNavigationEntry.
Titouan Rigoudy72f892d2022-05-02 18:21:234500 return previous_policies->ClonePtr();
Antonio Sartori78a749f2020-11-30 12:03:394501 }
4502
Titouan Rigoudy72f892d2022-05-02 18:21:234503 return rfh->policy_container_host()->policies().ClonePtr();
Antonio Sartori78a749f2020-11-30 12:03:394504}
4505
Hayato Ito2c8c08d02021-06-23 03:38:434506void NavigationControllerImpl::BroadcastHistoryOffsetAndLength() {
Carlos Caballeroede6f8c2021-01-28 11:01:504507 OPTIONAL_TRACE_EVENT2(
Hayato Ito2c8c08d02021-06-23 03:38:434508 "content", "NavigationControllerImpl::BroadcastHistoryOffsetAndLength",
4509 "history_offset", GetLastCommittedEntryIndex(), "history_length",
4510 GetEntryCount());
Carlos Caballeroede6f8c2021-01-28 11:01:504511
4512 auto callback = base::BindRepeating(
4513 [](int history_offset, int history_length, RenderViewHostImpl* rvh) {
4514 if (auto& broadcast = rvh->GetAssociatedPageBroadcast()) {
4515 broadcast->SetHistoryOffsetAndLength(history_offset, history_length);
4516 }
4517 },
Hayato Ito2c8c08d02021-06-23 03:38:434518 GetLastCommittedEntryIndex(), GetEntryCount());
Ali Hijazid87307d2022-11-07 20:15:034519 frame_tree_->root()->render_manager()->ExecutePageBroadcastMethod(callback);
Carlos Caballeroede6f8c2021-01-28 11:01:504520}
4521
4522void NavigationControllerImpl::DidAccessInitialMainDocument() {
4523 // We may have left a failed browser-initiated navigation in the address bar
4524 // to let the user edit it and try again. Clear it now that content might
4525 // show up underneath it.
Ali Hijazid87307d2022-11-07 20:15:034526 if (!frame_tree_->IsLoadingIncludingInnerFrameTrees() && GetPendingEntry())
Carlos Caballeroede6f8c2021-01-28 11:01:504527 DiscardPendingEntry(false);
4528
4529 // Update the URL display.
Abhijeet Kandalkar3dc6e602022-11-09 05:08:374530 delegate_->NotifyNavigationStateChangedFromController(INVALIDATE_TYPE_URL);
Carlos Caballeroede6f8c2021-01-28 11:01:504531}
4532
4533void NavigationControllerImpl::UpdateStateForFrame(
4534 RenderFrameHostImpl* rfhi,
4535 const blink::PageState& page_state) {
Alexander Timinf785f342021-03-18 00:00:564536 OPTIONAL_TRACE_EVENT1("content",
4537 "NavigationControllerImpl::UpdateStateForFrame",
4538 "render_frame_host", rfhi);
Carlos Caballeroede6f8c2021-01-28 11:01:504539 // The state update affects the last NavigationEntry associated with the given
4540 // |render_frame_host|. This may not be the last committed NavigationEntry (as
4541 // in the case of an UpdateState from a frame being swapped out). We track
4542 // which entry this is in the RenderFrameHost's nav_entry_id.
4543 NavigationEntryImpl* entry = GetEntryWithUniqueID(rfhi->nav_entry_id());
4544 if (!entry)
4545 return;
4546
4547 FrameNavigationEntry* frame_entry =
4548 entry->GetFrameEntry(rfhi->frame_tree_node());
4549 if (!frame_entry)
4550 return;
4551
4552 // The SiteInstance might not match if we do a cross-process navigation with
4553 // replacement (e.g., auto-subframe), in which case the swap out of the old
4554 // RenderFrameHost runs in the background after the old FrameNavigationEntry
4555 // has already been replaced and destroyed.
4556 if (frame_entry->site_instance() != rfhi->GetSiteInstance())
4557 return;
4558
4559 if (page_state == frame_entry->page_state())
4560 return; // Nothing to update.
4561
4562 DCHECK(page_state.IsValid()) << "Shouldn't set an empty PageState.";
4563
4564 // The document_sequence_number and item_sequence_number recorded in the
4565 // FrameNavigationEntry should not differ from the one coming with the update,
4566 // since it must come from the same document. Do not update it if a difference
4567 // is detected, as this indicates that |frame_entry| is not the correct one.
4568 blink::ExplodedPageState exploded_state;
4569 if (!blink::DecodePageState(page_state.ToEncodedData(), &exploded_state))
4570 return;
4571
4572 if (exploded_state.top.document_sequence_number !=
4573 frame_entry->document_sequence_number() ||
4574 exploded_state.top.item_sequence_number !=
4575 frame_entry->item_sequence_number()) {
4576 return;
4577 }
4578
4579 frame_entry->SetPageState(page_state);
4580 NotifyEntryChanged(entry);
4581}
4582
Nate Chapina2c881f52023-11-07 17:02:094583namespace {
4584
4585// The caller is responsible for ensuring the entry is same-origin to the
4586// origin to be committed.
4587blink::mojom::NavigationApiHistoryEntryPtr ToNavigationApiHistoryEntry(
4588 FrameNavigationEntry* frame_entry,
4589 int64_t pending_document_sequence_number) {
4590 blink::ExplodedPageState exploded_state;
4591 if (!blink::DecodePageState(frame_entry->page_state().ToEncodedData(),
4592 &exploded_state)) {
4593 return nullptr;
4594 }
4595 blink::ExplodedFrameState frame_state = exploded_state.top;
4596
4597 // If the document represented by this FNE hid its full url from appearing in
4598 // a referrer via a "no-referrer" or "origin" referrer policy, censor the url
4599 // in the navigation API as well (unless we're navigating to that document).
4600 std::u16string url;
4601 if (pending_document_sequence_number ==
4602 frame_entry->document_sequence_number() ||
4603 !frame_entry->protect_url_in_navigation_api()) {
4604 url = frame_state.url_string.value_or(std::u16string());
4605 }
4606
4607 return blink::mojom::NavigationApiHistoryEntry::New(
4608 frame_state.navigation_api_key.value_or(std::u16string()),
4609 frame_state.navigation_api_id.value_or(std::u16string()), url,
4610 frame_state.item_sequence_number, frame_state.document_sequence_number,
4611 frame_state.navigation_api_state);
4612}
4613
4614} // namespace
4615
Domenic Denicolacd30f5f82022-03-16 21:48:014616std::vector<blink::mojom::NavigationApiHistoryEntryPtr>
4617NavigationControllerImpl::PopulateSingleNavigationApiHistoryEntryVector(
Nate Chapind1fe3612021-04-16 20:45:574618 Direction direction,
4619 int entry_index,
4620 const url::Origin& pending_origin,
4621 FrameTreeNode* node,
4622 SiteInstance* site_instance,
Nate Chapin63db0d12022-01-20 22:03:304623 int64_t pending_item_sequence_number,
Nate Chapina2c881f52023-11-07 17:02:094624 int64_t pending_document_sequence_number,
4625 int& last_index_checked) {
Domenic Denicolacd30f5f82022-03-16 21:48:014626 std::vector<blink::mojom::NavigationApiHistoryEntryPtr> entries;
Rakina Zata Amnie2d31312022-11-18 03:38:454627 if (GetLastCommittedEntry()->IsInitialEntry()) {
Rakina Zata Amniafd3c6582021-11-30 06:19:174628 // Don't process the initial entry.
4629 DCHECK_EQ(GetEntryCount(), 1);
4630 return entries;
4631 }
Nate Chapind1fe3612021-04-16 20:45:574632 int offset = direction == Direction::kForward ? 1 : -1;
Nate Chapin63db0d12022-01-20 22:03:304633 int64_t previous_item_sequence_number = pending_item_sequence_number;
Nate Chapind1fe3612021-04-16 20:45:574634 for (int i = entry_index + offset; i >= 0 && i < GetEntryCount();
4635 i += offset) {
Nate Chapina2c881f52023-11-07 17:02:094636 last_index_checked = i;
Nate Chapind1fe3612021-04-16 20:45:574637 FrameNavigationEntry* frame_entry = GetEntryAtIndex(i)->GetFrameEntry(node);
Nate Chapindedfa642022-01-28 23:59:414638 if (!frame_entry)
Nate Chapind1fe3612021-04-16 20:45:574639 break;
Domenic Denicolacd30f5f82022-03-16 21:48:014640 // An entry should only appear in the navigation API entries if it is for
4641 // the same origin as the document being committed. Check the committed
4642 // origin, or if that is not available (during restore), check against the
4643 // FNE's url.
Nate Chapina2c881f52023-11-07 17:02:094644 // TODO(crbug.com/1209092): Move this into ToNavigationApiHistoryEntry()
4645 // once we can be sure that entries with the same ISN will never be
4646 // cross-origin.
Nate Chapindedfa642022-01-28 23:59:414647 url::Origin frame_entry_origin =
4648 frame_entry->committed_origin().value_or(url::Origin::Resolve(
4649 frame_entry->url(),
4650 frame_entry->initiator_origin().value_or(url::Origin())));
4651 if (!pending_origin.IsSameOriginWith(frame_entry_origin))
Nate Chapind1fe3612021-04-16 20:45:574652 break;
4653 if (previous_item_sequence_number == frame_entry->item_sequence_number())
4654 continue;
Nate Chapina2c881f52023-11-07 17:02:094655 if (blink::mojom::NavigationApiHistoryEntryPtr entry =
4656 ToNavigationApiHistoryEntry(frame_entry,
4657 pending_document_sequence_number)) {
Nate Chapin63db0d12022-01-20 22:03:304658 DCHECK(entry->url.empty() ||
4659 pending_origin.CanBeDerivedFrom(GURL(entry->url)));
Nate Chapind1fe3612021-04-16 20:45:574660 entries.push_back(std::move(entry));
4661 previous_item_sequence_number = frame_entry->item_sequence_number();
4662 }
4663 }
4664 // If |entries| was constructed by iterating backwards from
4665 // |entry_index|, it's latest-at-the-front, but the renderer will want it
4666 // earliest-at-the-front. Reverse it.
4667 if (direction == Direction::kBack)
4668 std::reverse(entries.begin(), entries.end());
4669 return entries;
4670}
4671
Domenic Denicolacd30f5f82022-03-16 21:48:014672blink::mojom::NavigationApiHistoryEntryArraysPtr
4673NavigationControllerImpl::GetNavigationApiHistoryEntryVectors(
Nate Chapin97d2f542022-02-18 01:34:554674 FrameTreeNode* node,
Nate Chapind1fe3612021-04-16 20:45:574675 NavigationRequest* request) {
Rakina Zata Amnic7367852022-11-07 17:10:404676 url::Origin pending_origin = request
Lukasz Anforowicz435e68d2022-11-09 21:47:444677 ? request->GetOriginToCommit().value()
Rakina Zata Amnic7367852022-11-07 17:10:404678 : url::Origin::Create(node->current_url());
Nate Chapind1fe3612021-04-16 20:45:574679
Nate Chapind1fe3612021-04-16 20:45:574680 scoped_refptr<SiteInstance> site_instance =
Nate Chapin97d2f542022-02-18 01:34:554681 node->current_frame_host()->GetSiteInstance();
Nate Chapind1fe3612021-04-16 20:45:574682
Nate Chapine82339d02022-05-03 23:48:254683 // NOTE: |entry_index| is the index where this entry will commit if no
4684 // modifications are made between now and DidCommitNavigation. This is used to
4685 // walk |entries_| and determine which entries should be exposed by the
4686 // navigation API. It is important to calculate this correctly, because blink
4687 // will cancel a same-document history commit if it's not present in the
4688 // entries blink knows about.
4689 int entry_index = GetLastCommittedEntryIndex();
Nate Chapind1fe3612021-04-16 20:45:574690 int64_t pending_item_sequence_number = 0;
Nate Chapin63db0d12022-01-20 22:03:304691 int64_t pending_document_sequence_number = 0;
Nate Chapine82339d02022-05-03 23:48:254692 bool will_create_new_entry = false;
4693 if (GetPendingEntryIndex() != -1) {
4694 entry_index = GetPendingEntryIndex();
4695 if (auto* frame_entry = GetPendingEntry()->GetFrameEntry(node)) {
4696 pending_item_sequence_number = frame_entry->item_sequence_number();
4697 pending_document_sequence_number =
4698 frame_entry->document_sequence_number();
4699 }
4700 } else if (request &&
4701 !NavigationTypeUtils::IsReload(
4702 request->common_params().navigation_type) &&
4703 !NavigationTypeUtils::IsHistory(
4704 request->common_params().navigation_type) &&
4705 !request->common_params().should_replace_current_entry &&
4706 !request->common_params()
4707 .is_history_navigation_in_new_child_frame) {
4708 will_create_new_entry = true;
4709 entry_index = GetLastCommittedEntryIndex() + 1;
4710 // Don't set pending_item_sequence_number or
4711 // pending_document_sequence_number in this case - a new unique isn/dsn will
4712 // be calculated in the renderer later.
4713 } else if (GetLastCommittedEntryIndex() != -1) {
4714 entry_index = GetLastCommittedEntryIndex();
4715 if (auto* frame_entry = GetLastCommittedEntry()->GetFrameEntry(node)) {
Nate Chapind1fe3612021-04-16 20:45:574716 pending_item_sequence_number = frame_entry->item_sequence_number();
Nate Chapin63db0d12022-01-20 22:03:304717 pending_document_sequence_number =
4718 frame_entry->document_sequence_number();
4719 }
Nate Chapind1fe3612021-04-16 20:45:574720 }
4721
Domenic Denicolacd30f5f82022-03-16 21:48:014722 auto entry_arrays = blink::mojom::NavigationApiHistoryEntryArrays::New();
Nate Chapine82339d02022-05-03 23:48:254723 if (entry_index == -1) {
4724 // TODO(rakina): Exit early when there is no last committed entry.
4725 // Remove when InitialNavigationEntry ships.
4726 return entry_arrays;
4727 }
4728
Nate Chapina2c881f52023-11-07 17:02:094729 int backmost_index = entry_index;
Domenic Denicolacd30f5f82022-03-16 21:48:014730 entry_arrays->back_entries = PopulateSingleNavigationApiHistoryEntryVector(
Nate Chapind1fe3612021-04-16 20:45:574731 Direction::kBack, entry_index, pending_origin, node, site_instance.get(),
Nate Chapina2c881f52023-11-07 17:02:094732 pending_item_sequence_number, pending_document_sequence_number,
4733 backmost_index);
Nate Chapind1fe3612021-04-16 20:45:574734
4735 // Don't populate forward entries if they will be truncated by a new entry.
Nate Chapina2c881f52023-11-07 17:02:094736 int forwardmost_index = entry_index;
Nate Chapind1fe3612021-04-16 20:45:574737 if (!will_create_new_entry) {
Domenic Denicolacd30f5f82022-03-16 21:48:014738 entry_arrays->forward_entries =
4739 PopulateSingleNavigationApiHistoryEntryVector(
4740 Direction::kForward, entry_index, pending_origin, node,
4741 site_instance.get(), pending_item_sequence_number,
Nate Chapina2c881f52023-11-07 17:02:094742 pending_document_sequence_number, forwardmost_index);
4743 }
4744
4745 // If the previous entry is within the block of contiguous entries being
4746 // provided, then report it as the `previous_entry`.
Nate Chapinc06cf80a2023-11-18 01:12:254747 FrameNavigationEntry* previous_entry = nullptr;
4748 if (frame_tree_->is_prerendering()) {
4749 int initiator_id = PrerenderHost::GetFromFrameTreeNode(*node)
4750 .initiator_frame_tree_node_id();
4751 if (initiator_id != RenderFrameHost::kNoFrameTreeNodeId) {
4752 auto* initiator_node = FrameTreeNode::GloballyFindByID(initiator_id);
4753 previous_entry = initiator_node->frame_tree()
4754 .controller()
4755 .GetLastCommittedEntry()
4756 ->GetFrameEntry(initiator_node);
4757 }
4758 } else if (GetLastCommittedEntryIndex() != -1 &&
4759 GetLastCommittedEntryIndex() >= backmost_index &&
4760 GetLastCommittedEntryIndex() <= forwardmost_index) {
4761 previous_entry = GetLastCommittedEntry()->GetFrameEntry(node);
4762 }
4763 if (previous_entry) {
4764 url::Origin previous_entry_origin =
4765 previous_entry->committed_origin().value_or(url::Origin::Resolve(
4766 previous_entry->url(),
4767 previous_entry->initiator_origin().value_or(url::Origin())));
4768 // TODO(crbug.com/1209092): Move this into ToNavigationApiHistoryEntry()
4769 // once we can be sure that entries with the same ISN will never be
4770 // cross-origin.
4771 if (pending_origin.IsSameOriginWith(previous_entry_origin)) {
4772 entry_arrays->previous_entry = ToNavigationApiHistoryEntry(
4773 previous_entry, pending_document_sequence_number);
Nate Chapina2c881f52023-11-07 17:02:094774 }
Nate Chapind1fe3612021-04-16 20:45:574775 }
Nate Chapinc06cf80a2023-11-18 01:12:254776
Nate Chapin4e657a472022-02-06 03:38:374777 return entry_arrays;
Nate Chapind1fe3612021-04-16 20:45:574778}
4779
Nate Chapinfbfe5af2021-06-10 17:22:084780NavigationControllerImpl::HistoryNavigationAction
Domenic Denicolacc094fb2022-03-16 23:40:574781NavigationControllerImpl::ShouldNavigateToEntryForNavigationApiKey(
Nate Chapinfbfe5af2021-06-10 17:22:084782 FrameNavigationEntry* current_entry,
4783 FrameNavigationEntry* target_entry,
Domenic Denicolacc094fb2022-03-16 23:40:574784 const std::string& navigation_api_key) {
Nate Chapinfbfe5af2021-06-10 17:22:084785 if (!target_entry || !target_entry->committed_origin())
4786 return HistoryNavigationAction::kStopLooking;
Nate Chapinfbfe5af2021-06-10 17:22:084787 if (!current_entry->committed_origin()->IsSameOriginWith(
4788 *target_entry->committed_origin())) {
4789 return HistoryNavigationAction::kStopLooking;
4790 }
4791
4792 // NOTE: We don't actually care between kSameDocument and
4793 // kDifferentDocument, so always use kDifferentDocument by convention.
Domenic Denicolacc094fb2022-03-16 23:40:574794 if (target_entry->navigation_api_key() == navigation_api_key)
Nate Chapinfbfe5af2021-06-10 17:22:084795 return HistoryNavigationAction::kDifferentDocument;
4796 return HistoryNavigationAction::kKeepLooking;
4797}
4798
Domenic Denicolacc094fb2022-03-16 23:40:574799void NavigationControllerImpl::NavigateToNavigationApiKey(
Nate Chapinbf682fa32022-09-26 22:41:204800 RenderFrameHostImpl* initiator_rfh,
Arthur Sonzognic686e8f2024-01-11 08:36:374801 std::optional<blink::scheduler::TaskAttributionId>
Yoav Weissa7449c3b2022-11-22 15:15:144802 soft_navigation_heuristics_task_id,
Domenic Denicolacc094fb2022-03-16 23:40:574803 const std::string& key) {
Nate Chapinbf682fa32022-09-26 22:41:204804 FrameTreeNode* node = initiator_rfh->frame_tree_node();
Nate Chapinfbfe5af2021-06-10 17:22:084805 FrameNavigationEntry* current_entry =
4806 GetLastCommittedEntry()->GetFrameEntry(node);
4807 if (!current_entry)
4808 return;
4809
Yoav Weiss8c573952022-11-17 17:35:134810 // TODO(https://crbug.com/1383704): Make sure that the right task ID is passed
4811 // when `navigation.traverseTo()` is called.
4812
Nate Chapinfbfe5af2021-06-10 17:22:084813 // We want to find the nearest matching entry that is contiguously
4814 // same-instance and same-origin. Check back first, then forward.
4815 // TODO(japhet): Link spec here once it exists.
4816 for (int i = GetCurrentEntryIndex() - 1; i >= 0; i--) {
Domenic Denicolacc094fb2022-03-16 23:40:574817 auto result = ShouldNavigateToEntryForNavigationApiKey(
Nate Chapinfbfe5af2021-06-10 17:22:084818 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4819 if (result == HistoryNavigationAction::kStopLooking)
4820 break;
4821 if (result != HistoryNavigationAction::kKeepLooking) {
Yoav Weissa7449c3b2022-11-22 15:15:144822 GoToIndex(i, initiator_rfh, soft_navigation_heuristics_task_id, &key);
Nate Chapinfbfe5af2021-06-10 17:22:084823 return;
4824 }
4825 }
4826 for (int i = GetCurrentEntryIndex() + 1; i < GetEntryCount(); i++) {
Domenic Denicolacc094fb2022-03-16 23:40:574827 auto result = ShouldNavigateToEntryForNavigationApiKey(
Nate Chapinfbfe5af2021-06-10 17:22:084828 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4829 if (result == HistoryNavigationAction::kStopLooking)
4830 break;
4831 if (result != HistoryNavigationAction::kKeepLooking) {
Yoav Weissa7449c3b2022-11-22 15:15:144832 GoToIndex(i, initiator_rfh, soft_navigation_heuristics_task_id, &key);
Nate Chapinfbfe5af2021-06-10 17:22:084833 return;
4834 }
4835 }
Nate Chapinbf682fa32022-09-26 22:41:204836
4837 // If we fall through to here, a matching NavigationEntry couldn't be found.
4838 // Notify the renderer that the navigation was cancelled.
4839 initiator_rfh->GetAssociatedLocalFrame()->TraverseCancelled(
4840 key, blink::mojom::TraverseCancelledReason::kNotFound);
Nate Chapinfbfe5af2021-06-10 17:22:084841}
4842
Domenic Denicolacc094fb2022-03-16 23:40:574843bool NavigationControllerImpl::ShouldProtectUrlInNavigationApi(
Nate Chapin63db0d12022-01-20 22:03:304844 network::mojom::ReferrerPolicy referrer_policy) {
4845 return referrer_policy == network::mojom::ReferrerPolicy::kNever ||
4846 referrer_policy == network::mojom::ReferrerPolicy::kOrigin;
4847}
4848
shivanigithubf405bf0d2021-11-05 17:58:334849bool NavigationControllerImpl::ShouldMaintainTrivialSessionHistory(
4850 const FrameTreeNode* frame_tree_node) const {
4851 // TODO(https://crbug.com/1197384): We may have to add portals in addition to
4852 // prerender and fenced frames. This should be kept in sync with
Hayato Ito7a80db42021-07-05 06:18:544853 // LocalFrame version, LocalFrame::ShouldMaintainTrivialSessionHistory.
Takashi Toyoshima4dad2c12023-11-13 10:04:464854 // The preview mode appears as prerendered page in renderers, and
4855 // GetDocument()->IsPrerendering() covers the case together.
Ali Hijazid87307d2022-11-07 20:15:034856 return frame_tree_->is_prerendering() ||
Takashi Toyoshima8dfc05c2024-01-29 21:03:514857 frame_tree_->page_delegate()->IsPageInPreviewMode() ||
shivanigithubf405bf0d2021-11-05 17:58:334858 frame_tree_node->IsInFencedFrameTree();
Hayato Ito7a80db42021-07-05 06:18:544859}
4860
Julie Jeongeun Kim0e242242022-11-30 10:45:094861void NavigationControllerImpl::DidChangeReferrerPolicy(
4862 FrameTreeNode* node,
4863 network::mojom::ReferrerPolicy referrer_policy) {
4864 FrameNavigationEntry* entry = GetLastCommittedEntry()->GetFrameEntry(node);
4865 if (!entry)
4866 return;
4867
4868 // The FrameNavigationEntry may want to change whether to protect its url
4869 // in the navigation API when the referrer policy changes.
4870 entry->set_protect_url_in_navigation_api(
4871 ShouldProtectUrlInNavigationApi(referrer_policy));
4872}
4873
[email protected]8ff00d72012-10-23 19:12:214874} // namespace content