blob: e9a4bb5b705e235a148f84d1db661ae178056791 [file] [log] [blame]
[email protected]d4a8ca482013-10-30 21:06:401// Copyright 2013 The Chromium Authors. All rights reserved.
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]c5b88d82012-10-06 17:03:3341#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2842#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2943#include "base/logging.h"
asvitkine30330812016-08-30 04:01:0844#include "base/metrics/histogram_macros.h"
Charlie Reis23c26da2022-01-29 00:57:4745#include "base/numerics/safe_conversions.h"
Chris Hamilton83272dc2021-02-23 00:24:0246#include "base/stl_util.h"
Peter Kastingb53b81912021-04-28 19:23:3047#include "base/strings/string_piece.h"
[email protected]348fbaac2013-06-11 06:31:5148#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0049#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3750#include "base/time/time.h"
Carlos Caballero40b0efd2021-01-26 11:55:0051#include "base/trace_event/optional_trace_event.h"
Carlos Caballeroede6f8c2021-01-28 11:01:5052#include "base/trace_event/trace_conversion_helper.h"
ssid3e765612015-01-28 04:03:4253#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5954#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2855#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1856#include "content/browser/bad_message.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3957#include "content/browser/blob_storage/chrome_blob_storage_context.h"
[email protected]825b1662012-03-12 19:07:3158#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4159#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0460#include "content/browser/dom_storage/session_storage_namespace_impl.h"
danakjc492bf82020-09-09 20:02:4461#include "content/browser/renderer_host/debug_urls.h"
62#include "content/browser/renderer_host/frame_tree.h"
Carlos Caballero40b0efd2021-01-26 11:55:0063#include "content/browser/renderer_host/frame_tree_node.h"
Chris Bookholt27faf8d2022-01-20 01:03:3364#include "content/browser/renderer_host/navigation_controller_delegate.h"
danakjc492bf82020-09-09 20:02:4465#include "content/browser/renderer_host/navigation_entry_impl.h"
Nate Chapin214a86a2021-06-21 20:35:5766#include "content/browser/renderer_host/navigation_entry_restore_context_impl.h"
danakjc492bf82020-09-09 20:02:4467#include "content/browser/renderer_host/navigation_request.h"
68#include "content/browser/renderer_host/navigator.h"
69#include "content/browser/renderer_host/render_frame_host_delegate.h"
Carlos Caballero40b0efd2021-01-26 11:55:0070#include "content/browser/renderer_host/render_view_host_impl.h"
Sharon Yangd70a5392021-10-26 23:06:3271#include "content/browser/site_info.h"
[email protected]b6583592012-01-25 19:52:3372#include "content/browser/site_instance_impl.h"
Kunihiko Sakamoto346a74e2021-03-10 08:57:4873#include "content/browser/web_package/subresource_web_bundle_navigation_info.h"
Tsuyoshi Horo37493af2019-11-21 23:43:1474#include "content/browser/web_package/web_bundle_navigation_info.h"
Camille Lamy5193caa2018-10-12 11:59:4275#include "content/common/content_constants_internal.h"
Nate Chapind1fe3612021-04-16 20:45:5776#include "content/common/navigation_params_utils.h"
Nasko Oskovae49e292020-08-13 02:08:5177#include "content/common/trace_utils.h"
[email protected]ccb797302011-12-15 16:55:1178#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1979#include "content/public/browser/content_browser_client.h"
Fergal Daly1336ac642021-09-14 15:13:1180#include "content/public/browser/disallow_activation_reason.h"
[email protected]d9083482012-01-06 00:38:4681#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0082#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3883#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1684#include "content/public/browser/notification_types.h"
Lei Zhang96031532019-10-10 19:05:4785#include "content/public/browser/render_view_host.h"
[email protected]9677a3c2012-12-22 04:18:5886#include "content/public/browser/render_widget_host.h"
87#include "content/public/browser/render_widget_host_view.h"
Mikel Astizba9cf2fd2017-12-17 10:38:1088#include "content/public/browser/replaced_navigation_entry_data.h"
[email protected]4c3a23582012-08-18 08:54:3489#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1990#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3891#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1092#include "content/public/common/content_features.h"
Lei Zhang96031532019-10-10 19:05:4793#include "content/public/common/url_constants.h"
clamy7fced7b2017-11-16 19:52:4394#include "content/public/common/url_utils.h"
servolkf3955532015-05-16 00:01:5995#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3296#include "net/base/escape.h"
Arthur Sonzogni620cec62018-12-13 13:08:5797#include "net/http/http_status_code.h"
Shivani Sharma93329102019-01-24 19:44:1898#include "services/metrics/public/cpp/ukm_builders.h"
99#include "services/metrics/public/cpp/ukm_recorder.h"
Yue Ru Sun128804932020-09-30 22:19:17100#include "services/metrics/public/cpp/ukm_source_id.h"
Nan Lind91c8152021-10-21 16:22:37101#include "services/network/public/mojom/fetch_api.mojom.h"
[email protected]9677a3c2012-12-22 04:18:58102#include "skia/ext/platform_canvas.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:39103#include "third_party/blink/public/common/blob/blob_utils.h"
Gyuyoung Kim107c2a02021-04-13 01:49:30104#include "third_party/blink/public/common/chrome_debug_urls.h"
Miyoung Shin1c565c912021-03-17 12:11:21105#include "third_party/blink/public/common/history/session_history_constants.h"
Blink Reformata30d4232018-04-07 15:31:06106#include "third_party/blink/public/common/mime_util/mime_util.h"
Minggang Wanga13c796e2021-07-02 05:54:43107#include "third_party/blink/public/common/navigation/navigation_params.h"
Carlos Caballeroede6f8c2021-01-28 11:01:50108#include "third_party/blink/public/common/page_state/page_state_serialization.h"
Minggang Wangb9f3fa92021-07-01 15:30:31109#include "third_party/blink/public/mojom/navigation/navigation_params.mojom.h"
Minggang Wang7ee0c742021-06-16 16:16:51110#include "third_party/blink/public/mojom/navigation/prefetched_signed_exchange_info.mojom.h"
[email protected]cca6f392014-05-28 21:32:26111#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:29112
[email protected]8ff00d72012-10-23 19:12:21113namespace content {
[email protected]e9ba4472008-09-14 15:42:43114namespace {
115
116// Invoked when entries have been pruned, or removed. For example, if the
117// current entries are [google, digg, yahoo], with the current entry google,
118// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:47119void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
Shivani Sharmab9c46de82019-02-08 16:54:50120 int index,
[email protected]c12bf1a12008-09-17 16:28:49121 int count) {
[email protected]8ff00d72012-10-23 19:12:21122 PrunedDetails details;
Shivani Sharmab9c46de82019-02-08 16:54:50123 details.index = index;
[email protected]c12bf1a12008-09-17 16:28:49124 details.count = count;
Sam McNally5c087a32017-08-25 01:46:14125 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:43126}
127
[email protected]e9ba4472008-09-14 15:42:43128// Configure all the NavigationEntries in entries for restore. This resets
129// the transition type to reload and makes sure the content state isn't empty.
130void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57131 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48132 RestoreType type) {
Lei Zhang96031532019-10-10 19:05:47133 for (auto& entry : *entries) {
[email protected]e9ba4472008-09-14 15:42:43134 // Use a transition type of reload so that we don't incorrectly increase
135 // the typed count.
Lei Zhang96031532019-10-10 19:05:47136 entry->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
137 entry->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43138 }
139}
140
[email protected]bf70edce2012-06-20 22:32:22141// Determines whether or not we should be carrying over a user agent override
142// between two NavigationEntries.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57143bool ShouldKeepOverride(NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22144 return last_entry && last_entry->GetIsOverridingUserAgent();
145}
146
Camille Lamy5193caa2018-10-12 11:59:42147// Determines whether to override user agent for a navigation.
148bool ShouldOverrideUserAgent(
149 NavigationController::UserAgentOverrideOption override_user_agent,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57150 NavigationEntry* last_committed_entry) {
Camille Lamy5193caa2018-10-12 11:59:42151 switch (override_user_agent) {
152 case NavigationController::UA_OVERRIDE_INHERIT:
153 return ShouldKeepOverride(last_committed_entry);
154 case NavigationController::UA_OVERRIDE_TRUE:
155 return true;
156 case NavigationController::UA_OVERRIDE_FALSE:
157 return false;
Camille Lamy5193caa2018-10-12 11:59:42158 }
159 NOTREACHED();
160 return false;
161}
162
Rakina Zata Amni312822d72021-06-04 16:13:37163// Returns true if this navigation should be treated as a reload. For e.g.
clamy0a656e42018-02-06 18:18:28164// navigating to the last committed url via the address bar or clicking on a
Rakina Zata Amni312822d72021-06-04 16:13:37165// link which results in a navigation to the last committed URL (but wasn't
166// converted to do a replacement navigation in the renderer), etc.
Fergal Daly766177d2020-07-07 07:54:04167// |node| is the FrameTreeNode which is navigating. |url|, |virtual_url|,
168// |base_url_for_data_url|, |transition_type| correspond to the new navigation
169// (i.e. the pending NavigationEntry). |last_committed_entry| is the last
170// navigation that committed.
171bool ShouldTreatNavigationAsReload(FrameTreeNode* node,
172 const GURL& url,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57173 const GURL& virtual_url,
174 const GURL& base_url_for_data_url,
175 ui::PageTransition transition_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57176 bool is_post,
Rakina Zata Amni312822d72021-06-04 16:13:37177 bool should_replace_current_entry,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57178 NavigationEntryImpl* last_committed_entry) {
Rakina Zata Amni312822d72021-06-04 16:13:37179 // Navigations intended to do a replacement shouldn't be converted to do a
180 // reload.
181 if (should_replace_current_entry)
clamy0a656e42018-02-06 18:18:28182 return false;
clamy0a656e42018-02-06 18:18:28183 // Only convert to reload if at least one navigation committed.
Rakina Zata Amni2322f4f82022-01-24 13:24:24184 if (!last_committed_entry || last_committed_entry->IsInitialEntry())
ananta3bdd8ae2016-12-22 17:11:55185 return false;
186
arthursonzogni7a8243682017-12-14 16:41:42187 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28188 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42189 return false;
190
ananta3bdd8ae2016-12-22 17:11:55191 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
192 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
193 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28194 bool transition_type_can_be_converted = false;
195 if (ui::PageTransitionCoreTypeIs(transition_type,
196 ui::PAGE_TRANSITION_RELOAD) &&
197 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
198 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55199 }
clamy0a656e42018-02-06 18:18:28200 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55201 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28202 transition_type_can_be_converted = true;
203 }
204 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
205 transition_type_can_be_converted = true;
206 if (!transition_type_can_be_converted)
207 return false;
208
209 // This check is required for cases like view-source:, etc. Here the URL of
210 // the navigation entry would contain the url of the page, while the virtual
211 // URL contains the full URL including the view-source prefix.
212 if (virtual_url != last_committed_entry->GetVirtualURL())
213 return false;
214
Fergal Daly766177d2020-07-07 07:54:04215 // Check that the URLs match.
216 FrameNavigationEntry* frame_entry = last_committed_entry->GetFrameEntry(node);
217 // If there's no frame entry then by definition the URLs don't match.
218 if (!frame_entry)
219 return false;
220
221 if (url != frame_entry->url())
clamy0a656e42018-02-06 18:18:28222 return false;
223
224 // This check is required for Android WebView loadDataWithBaseURL. Apps
225 // can pass in anything in the base URL and we need to ensure that these
226 // match before classifying it as a reload.
227 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
228 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
229 return false;
ananta3bdd8ae2016-12-22 17:11:55230 }
231
clamy0a656e42018-02-06 18:18:28232 // Skip entries with SSL errors.
233 if (last_committed_entry->ssl_error())
234 return false;
235
236 // Don't convert to a reload when the last navigation was a POST or the new
237 // navigation is a POST.
Fergal Daly766177d2020-07-07 07:54:04238 if (frame_entry->get_has_post_data() || is_post)
clamy0a656e42018-02-06 18:18:28239 return false;
240
241 return true;
ananta3bdd8ae2016-12-22 17:11:55242}
243
Nasko Oskov03912102019-01-11 00:21:32244bool DoesURLMatchOriginForNavigation(
Wang Hui14cac7a2022-01-28 06:07:47245 const GURL& destination_url,
Anton Bikineevf62d1bf2021-05-15 17:56:07246 const absl::optional<url::Origin>& origin,
Wang Hui14cac7a2022-01-28 06:07:47247 SubresourceWebBundleNavigationInfo* subresource_web_bundle_navigation_info,
248 NavigationEntry* entry,
249 bool is_main_frame) {
Nasko Oskov03912102019-01-11 00:21:32250 // If there is no origin supplied there is nothing to match. This can happen
251 // for navigations to a pending entry and therefore it should be allowed.
252 if (!origin)
253 return true;
254
Wang Hui14cac7a2022-01-28 06:07:47255 // For a history navigation to a document loaded with loadDataWithBaseURL,
256 // compare the origin to the entry's base URL instead of the data: URL used to
257 // commit.
258 const GURL& base_url_for_data_url = entry->GetBaseURLForDataURL();
259 bool check_origin_against_base_url =
260 is_main_frame && !base_url_for_data_url.is_empty();
261
262 const GURL& url_for_origin =
263 check_origin_against_base_url ? base_url_for_data_url : destination_url;
Kunihiko Sakamoto260ee0a2021-10-15 01:44:08264 // Urn: and uuid-in-package: subframe from WebBundle has an opaque origin
265 // derived from the Bundle's origin.
266 // TODO(https://crbug.com/1257045): Remove urn: scheme support.
Wang Hui14cac7a2022-01-28 06:07:47267 if ((url_for_origin.SchemeIs(url::kUrnScheme) ||
268 url_for_origin.SchemeIs(url::kUuidInPackageScheme)) &&
Kunihiko Sakamoto260ee0a2021-10-15 01:44:08269 subresource_web_bundle_navigation_info) {
Kunihiko Sakamoto346a74e2021-03-10 08:57:48270 return origin->CanBeDerivedFrom(
271 subresource_web_bundle_navigation_info->bundle_url());
272 }
273
Wang Hui14cac7a2022-01-28 06:07:47274 return origin->CanBeDerivedFrom(url_for_origin);
Nasko Oskov03912102019-01-11 00:21:32275}
276
Anton Bikineevf62d1bf2021-05-15 17:56:07277absl::optional<url::Origin> GetCommittedOriginForFrameEntry(
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12278 const mojom::DidCommitProvisionalLoadParams& params,
279 NavigationRequest* request) {
Nasko Oskov03912102019-01-11 00:21:32280 // Error pages commit in an opaque origin, yet have the real URL that resulted
281 // in an error as the |params.url|. Since successful reload of an error page
282 // should commit in the correct origin, setting the opaque origin on the
283 // FrameNavigationEntry will be incorrect.
Rakina Zata Amniafd3c6582021-11-30 06:19:17284 if (request && request->DidEncounterError())
Anton Bikineevf62d1bf2021-05-15 17:56:07285 return absl::nullopt;
Nasko Oskov03912102019-01-11 00:21:32286
Anton Bikineevf62d1bf2021-05-15 17:56:07287 return absl::make_optional(params.origin);
Nasko Oskov03912102019-01-11 00:21:32288}
289
Camille Lamy5193caa2018-10-12 11:59:42290bool IsValidURLForNavigation(bool is_main_frame,
291 const GURL& virtual_url,
292 const GURL& dest_url) {
293 // Don't attempt to navigate if the virtual URL is non-empty and invalid.
294 if (is_main_frame && !virtual_url.is_valid() && !virtual_url.is_empty()) {
295 LOG(WARNING) << "Refusing to load for invalid virtual URL: "
296 << virtual_url.possibly_invalid_spec();
297 return false;
298 }
299
300 // Don't attempt to navigate to non-empty invalid URLs.
301 if (!dest_url.is_valid() && !dest_url.is_empty()) {
302 LOG(WARNING) << "Refusing to load invalid URL: "
303 << dest_url.possibly_invalid_spec();
304 return false;
305 }
306
307 // The renderer will reject IPC messages with URLs longer than
308 // this limit, so don't attempt to navigate with a longer URL.
309 if (dest_url.spec().size() > url::kMaxURLChars) {
310 LOG(WARNING) << "Refusing to load URL as it exceeds " << url::kMaxURLChars
311 << " characters.";
312 return false;
313 }
314
Aaron Colwell33109c592020-04-21 21:31:19315 // Reject renderer debug URLs because they should have been handled before
316 // we get to this point. This check handles renderer debug URLs
317 // that are inside a view-source: URL (e.g. view-source:chrome://kill) and
318 // provides defense-in-depth if a renderer debug URL manages to get here via
319 // some other path. We want to reject the navigation here so it doesn't
320 // violate assumptions in downstream code.
Gyuyoung Kim107c2a02021-04-13 01:49:30321 if (blink::IsRendererDebugURL(dest_url)) {
Aaron Colwell33109c592020-04-21 21:31:19322 LOG(WARNING) << "Refusing to load renderer debug URL: "
323 << dest_url.possibly_invalid_spec();
324 return false;
325 }
326
Camille Lamy5193caa2018-10-12 11:59:42327 return true;
328}
329
Mikel Astizba9cf2fd2017-12-17 10:38:10330// See replaced_navigation_entry_data.h for details: this information is meant
331// to ensure |*output_entry| keeps track of its original URL (landing page in
332// case of server redirects) as it gets replaced (e.g. history.replaceState()),
333// without overwriting it later, for main frames.
334void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57335 NavigationEntryImpl* replaced_entry,
Mikel Astizba9cf2fd2017-12-17 10:38:10336 NavigationEntryImpl* output_entry) {
Rakina Zata Amniafd3c6582021-11-30 06:19:17337 if (output_entry->GetReplacedEntryData().has_value() ||
338 replaced_entry->IsInitialEntry()) {
Mikel Astizba9cf2fd2017-12-17 10:38:10339 return;
Rakina Zata Amniafd3c6582021-11-30 06:19:17340 }
Mikel Astizba9cf2fd2017-12-17 10:38:10341
342 ReplacedNavigationEntryData data;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57343 data.first_committed_url = replaced_entry->GetURL();
344 data.first_timestamp = replaced_entry->GetTimestamp();
345 data.first_transition_type = replaced_entry->GetTransitionType();
Charlie Reisb55438f2019-01-08 01:54:29346 output_entry->set_replaced_entry_data(data);
Mikel Astizba9cf2fd2017-12-17 10:38:10347}
348
Minggang Wangb9f3fa92021-07-01 15:30:31349blink::mojom::NavigationType GetNavigationType(
350 const GURL& old_url,
351 const GURL& new_url,
352 ReloadType reload_type,
353 NavigationEntryImpl* entry,
354 const FrameNavigationEntry& frame_entry,
355 bool has_pending_cross_document_commit,
356 bool is_currently_error_page,
357 bool is_same_document_history_load) {
clamyea99ea12018-05-28 13:54:23358 // Reload navigations
359 switch (reload_type) {
360 case ReloadType::NORMAL:
Minggang Wangb9f3fa92021-07-01 15:30:31361 return blink::mojom::NavigationType::RELOAD;
clamyea99ea12018-05-28 13:54:23362 case ReloadType::BYPASSING_CACHE:
Minggang Wangb9f3fa92021-07-01 15:30:31363 return blink::mojom::NavigationType::RELOAD_BYPASSING_CACHE;
clamyea99ea12018-05-28 13:54:23364 case ReloadType::ORIGINAL_REQUEST_URL:
Minggang Wangb9f3fa92021-07-01 15:30:31365 return blink::mojom::NavigationType::RELOAD_ORIGINAL_REQUEST_URL;
clamyea99ea12018-05-28 13:54:23366 case ReloadType::NONE:
367 break; // Fall through to rest of function.
368 }
369
Lukasz Anforowicz6b75c0d2020-12-01 22:56:08370 if (entry->IsRestored()) {
Minggang Wangb9f3fa92021-07-01 15:30:31371 return entry->GetHasPostData()
372 ? blink::mojom::NavigationType::RESTORE_WITH_POST
373 : blink::mojom::NavigationType::RESTORE;
clamyea99ea12018-05-28 13:54:23374 }
375
danakjb952ef12021-01-14 19:58:49376 const bool can_be_same_document =
377 // A pending cross-document commit means this navigation will not occur in
378 // the current document, as that document would end up being replaced in
379 // the meantime.
380 !has_pending_cross_document_commit &&
381 // If the current document is an error page, we should always treat it as
382 // a different-document navigation so that we'll attempt to load the
383 // document we're navigating to (and not stay in the current error page).
384 !is_currently_error_page;
danakjd83d706d2020-11-25 22:11:12385
clamyea99ea12018-05-28 13:54:23386 // History navigations.
387 if (frame_entry.page_state().IsValid()) {
danakjd83d706d2020-11-25 22:11:12388 return can_be_same_document && is_same_document_history_load
Minggang Wangb9f3fa92021-07-01 15:30:31389 ? blink::mojom::NavigationType::HISTORY_SAME_DOCUMENT
390 : blink::mojom::NavigationType::HISTORY_DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23391 }
392 DCHECK(!is_same_document_history_load);
393
394 // A same-document fragment-navigation happens when the only part of the url
395 // that is modified is after the '#' character.
396 //
397 // When modifying this condition, please take a look at:
danakjd83d706d2020-11-25 22:11:12398 // FrameLoader::ShouldPerformFragmentNavigation().
clamyea99ea12018-05-28 13:54:23399 //
400 // Note: this check is only valid for navigations that are not history
401 // navigations. For instance, if the history is: 'A#bar' -> 'B' -> 'A#foo', a
402 // history navigation from 'A#foo' to 'A#bar' is not a same-document
403 // navigation, but a different-document one. This is why history navigation
404 // are classified before this check.
Lei Zhang96031532019-10-10 19:05:47405 bool is_same_doc = new_url.has_ref() && old_url.EqualsIgnoringRef(new_url) &&
406 frame_entry.method() == "GET";
danakjd83d706d2020-11-25 22:11:12407
408 // The one case where we do the wrong thing here and incorrectly choose
409 // SAME_DOCUMENT is if the navigation is browser-initiated but the document in
410 // the renderer is a frameset. All frameset navigations should be
411 // DIFFERENT_DOCUMENT, even if their URLs match. A renderer-initiated
412 // navigation would do the right thing, as it would send it to the browser and
413 // all renderer-initiated navigations are DIFFERENT_DOCUMENT (they don't get
414 // into this method). But since we can't tell that case here for browser-
415 // initiated navigations, we have to get the renderer involved. In that case
416 // the navigation would be restarted due to the renderer spending a reply of
417 // mojom::CommitResult::RestartCrossDocument.
418
419 return can_be_same_document && is_same_doc
Minggang Wangb9f3fa92021-07-01 15:30:31420 ? blink::mojom::NavigationType::SAME_DOCUMENT
421 : blink::mojom::NavigationType::DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23422}
423
Camille Lamy5193caa2018-10-12 11:59:42424// Adjusts the original input URL if needed, to get the URL to actually load and
425// the virtual URL, which may differ.
426void RewriteUrlForNavigation(const GURL& original_url,
427 BrowserContext* browser_context,
428 GURL* url_to_load,
429 GURL* virtual_url,
430 bool* reverse_on_redirect) {
Camille Lamy5193caa2018-10-12 11:59:42431 // Allow the browser URL handler to rewrite the URL. This will, for example,
432 // remove "view-source:" from the beginning of the URL to get the URL that
433 // will actually be loaded. This real URL won't be shown to the user, just
434 // used internally.
Lukasz Anforowicz7b078792020-10-20 17:04:31435 *url_to_load = *virtual_url = original_url;
Camille Lamy5193caa2018-10-12 11:59:42436 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
437 url_to_load, browser_context, reverse_on_redirect);
438}
439
440#if DCHECK_IS_ON()
441// Helper sanity check function used in debug mode.
442void ValidateRequestMatchesEntry(NavigationRequest* request,
443 NavigationEntryImpl* entry) {
444 if (request->frame_tree_node()->IsMainFrame()) {
445 DCHECK_EQ(request->browser_initiated(), !entry->is_renderer_initiated());
446 DCHECK(ui::PageTransitionTypeIncludingQualifiersIs(
Minggang Wangb9f3fa92021-07-01 15:30:31447 ui::PageTransitionFromInt(request->common_params().transition),
448 entry->GetTransitionType()));
Camille Lamy5193caa2018-10-12 11:59:42449 }
Nasko Oskovc36327d2019-01-03 23:23:04450 DCHECK_EQ(request->commit_params().should_clear_history_list,
Camille Lamy5193caa2018-10-12 11:59:42451 entry->should_clear_history_list());
452 DCHECK_EQ(request->common_params().has_user_gesture,
453 entry->has_user_gesture());
454 DCHECK_EQ(request->common_params().base_url_for_data_url,
455 entry->GetBaseURLForDataURL());
Nasko Oskovc36327d2019-01-03 23:23:04456 DCHECK_EQ(request->commit_params().can_load_local_resources,
Camille Lamy5193caa2018-10-12 11:59:42457 entry->GetCanLoadLocalResources());
458 DCHECK_EQ(request->common_params().started_from_context_menu,
459 entry->has_started_from_context_menu());
460
461 FrameNavigationEntry* frame_entry =
462 entry->GetFrameEntry(request->frame_tree_node());
463 if (!frame_entry) {
464 NOTREACHED();
465 return;
466 }
467
Camille Lamy5193caa2018-10-12 11:59:42468 DCHECK_EQ(request->common_params().method, frame_entry->method());
469
Nasko Oskovc36327d2019-01-03 23:23:04470 size_t redirect_size = request->commit_params().redirects.size();
Camille Lamy5193caa2018-10-12 11:59:42471 if (redirect_size == frame_entry->redirect_chain().size()) {
472 for (size_t i = 0; i < redirect_size; ++i) {
Nasko Oskovc36327d2019-01-03 23:23:04473 DCHECK_EQ(request->commit_params().redirects[i],
Camille Lamy5193caa2018-10-12 11:59:42474 frame_entry->redirect_chain()[i]);
475 }
476 } else {
477 NOTREACHED();
478 }
479}
480#endif // DCHECK_IS_ON()
481
Dave Tapuska8bfd84c2019-03-26 20:47:16482// Returns whether the session history NavigationRequests in |navigations|
483// would stay within the subtree of the sandboxed iframe in
484// |sandbox_frame_tree_node_id|.
485bool DoesSandboxNavigationStayWithinSubtree(
486 int sandbox_frame_tree_node_id,
487 const std::vector<std::unique_ptr<NavigationRequest>>& navigations) {
488 for (auto& item : navigations) {
489 bool within_subtree = false;
490 // Check whether this NavigationRequest affects a frame within the
491 // sandboxed frame's subtree by walking up the tree looking for the
492 // sandboxed frame.
493 for (auto* frame = item->frame_tree_node(); frame;
Alexander Timin381e7e182020-04-28 19:04:03494 frame = FrameTreeNode::From(frame->parent())) {
Dave Tapuska8bfd84c2019-03-26 20:47:16495 if (frame->frame_tree_node_id() == sandbox_frame_tree_node_id) {
496 within_subtree = true;
497 break;
498 }
499 }
500 if (!within_subtree)
501 return false;
502 }
503 return true;
504}
505
[email protected]e9ba4472008-09-14 15:42:43506} // namespace
507
arthursonzogni66f711c2019-10-08 14:40:36508// NavigationControllerImpl::PendingEntryRef------------------------------------
509
510NavigationControllerImpl::PendingEntryRef::PendingEntryRef(
511 base::WeakPtr<NavigationControllerImpl> controller)
512 : controller_(controller) {}
513
514NavigationControllerImpl::PendingEntryRef::~PendingEntryRef() {
515 if (!controller_) // Can be null with interstitials.
516 return;
517
518 controller_->PendingEntryRefDeleted(this);
519}
520
[email protected]d202a7c2012-01-04 07:53:47521// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29522
[email protected]23a918b2014-07-15 09:51:36523const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23524
[email protected]765b35502008-08-21 00:51:20525// static
[email protected]d202a7c2012-01-04 07:53:47526size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23527 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20528
[email protected]e6fec472013-05-14 05:29:02529// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20530// when testing.
531static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29532
[email protected]71fde352011-12-29 03:29:56533// static
dcheng9bfa5162016-04-09 01:00:57534std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
535 const GURL& url,
Lukasz Anforowicz641234d52019-11-07 21:07:10536 Referrer referrer,
Anton Bikineevf62d1bf2021-05-15 17:56:07537 absl::optional<url::Origin> initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:10538 ui::PageTransition transition,
539 bool is_renderer_initiated,
540 const std::string& extra_headers,
541 BrowserContext* browser_context,
542 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
543 return NavigationControllerImpl::CreateNavigationEntry(
544 url, referrer, std::move(initiator_origin),
545 nullptr /* source_site_instance */, transition, is_renderer_initiated,
Hayato Ito303654c2021-06-30 09:07:54546 extra_headers, browser_context, std::move(blob_url_loader_factory));
Lukasz Anforowicz641234d52019-11-07 21:07:10547}
548
549// static
550std::unique_ptr<NavigationEntryImpl>
551NavigationControllerImpl::CreateNavigationEntry(
552 const GURL& url,
553 Referrer referrer,
Anton Bikineevf62d1bf2021-05-15 17:56:07554 absl::optional<url::Origin> initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:10555 SiteInstance* source_site_instance,
dcheng9bfa5162016-04-09 01:00:57556 ui::PageTransition transition,
557 bool is_renderer_initiated,
558 const std::string& extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:09559 BrowserContext* browser_context,
Hayato Ito303654c2021-06-30 09:07:54560 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
Camille Lamy5193caa2018-10-12 11:59:42561 GURL url_to_load;
562 GURL virtual_url;
[email protected]71fde352011-12-29 03:29:56563 bool reverse_on_redirect = false;
Camille Lamy5193caa2018-10-12 11:59:42564 RewriteUrlForNavigation(url, browser_context, &url_to_load, &virtual_url,
565 &reverse_on_redirect);
[email protected]71fde352011-12-29 03:29:56566
Lukasz Anforowicz641234d52019-11-07 21:07:10567 // Let the NTP override the navigation params and pretend that this is a
568 // browser-initiated, bookmark-like navigation.
569 GetContentClient()->browser()->OverrideNavigationParams(
Scott Violetcf6ea7e2021-06-09 21:09:21570 source_site_instance, &transition, &is_renderer_initiated, &referrer,
571 &initiator_origin);
Lukasz Anforowicz641234d52019-11-07 21:07:10572
Patrick Monettef507e982019-06-19 20:18:06573 auto entry = std::make_unique<NavigationEntryImpl>(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28574 nullptr, // The site instance for tabs is sent on navigation
575 // (WebContents::GetSiteInstance).
Jan Wilken Dörrieaace0cfef2021-03-11 22:01:58576 url_to_load, referrer, initiator_origin, std::u16string(), transition,
Rakina Zata Amniafd3c6582021-11-30 06:19:17577 is_renderer_initiated, blob_url_loader_factory,
578 /* is_initial_entry = */ false);
Camille Lamy5193caa2018-10-12 11:59:42579 entry->SetVirtualURL(virtual_url);
580 entry->set_user_typed_url(virtual_url);
[email protected]71fde352011-12-29 03:29:56581 entry->set_update_virtual_url_with_url(reverse_on_redirect);
582 entry->set_extra_headers(extra_headers);
Patrick Monettef507e982019-06-19 20:18:06583 return entry;
[email protected]71fde352011-12-29 03:29:56584}
585
[email protected]cdcb1dee2012-01-04 00:46:20586// static
587void NavigationController::DisablePromptOnRepost() {
588 g_check_for_repost = false;
589}
590
[email protected]c5b88d82012-10-06 17:03:33591base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
592 base::Time t) {
593 // If |t| is between the water marks, we're in a run of duplicates
594 // or just getting out of it, so increase the high-water mark to get
595 // a time that probably hasn't been used before and return it.
596 if (low_water_mark_ <= t && t <= high_water_mark_) {
Peter Kastinge5a38ed2021-10-02 03:06:35597 high_water_mark_ += base::Microseconds(1);
[email protected]c5b88d82012-10-06 17:03:33598 return high_water_mark_;
599 }
600
601 // Otherwise, we're clear of the last duplicate run, so reset the
602 // water marks.
603 low_water_mark_ = high_water_mark_ = t;
604 return t;
605}
606
ckitagawa0faa5e42020-06-17 17:30:54607NavigationControllerImpl::ScopedShowRepostDialogForTesting::
608 ScopedShowRepostDialogForTesting()
609 : was_disallowed_(g_check_for_repost) {
610 g_check_for_repost = true;
611}
612
613NavigationControllerImpl::ScopedShowRepostDialogForTesting::
614 ~ScopedShowRepostDialogForTesting() {
615 g_check_for_repost = was_disallowed_;
616}
617
[email protected]d202a7c2012-01-04 07:53:47618NavigationControllerImpl::NavigationControllerImpl(
Carlos Caballero40b0efd2021-01-26 11:55:00619 BrowserContext* browser_context,
620 FrameTree& frame_tree,
621 NavigationControllerDelegate* delegate)
622 : frame_tree_(frame_tree),
623 browser_context_(browser_context),
[email protected]ec6c05f2013-10-23 18:41:57624 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22625 ssl_manager_(this),
Lei Zhang96031532019-10-10 19:05:47626 get_timestamp_callback_(base::BindRepeating(&base::Time::Now)) {
[email protected]3d7474ff2011-07-27 17:47:37627 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29628}
629
[email protected]d202a7c2012-01-04 07:53:47630NavigationControllerImpl::~NavigationControllerImpl() {
arthursonzogni69a6a1b2019-09-17 09:23:00631 // The NavigationControllerImpl might be called inside its delegate
632 // destructor. Calling it is not valid anymore.
633 delegate_ = nullptr;
634 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:29635}
636
Matt Falkenhagen548ed1562021-07-06 01:38:26637WebContents* NavigationControllerImpl::DeprecatedGetWebContents() {
638 return delegate_->DeprecatedGetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32639}
640
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57641BrowserContext* NavigationControllerImpl::GetBrowserContext() {
[email protected]a26023822011-12-29 00:23:55642 return browser_context_;
643}
644
[email protected]d202a7c2012-01-04 07:53:47645void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30646 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36647 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57648 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
Charlie Reis23c26da2022-01-29 00:57:47649 // Note that it's possible for `entries_` to contain multiple entries at this
650 // point, as Restore() might be called on a NavigationController that is
651 // already used (e.g. due to WebView's restoreState() API), not only for fresh
652 // NavigationControllers. These entries are not cleared to preserve legacy
653 // behavior and also because `pending_entry_` might point to one of the
654 // pre-existing entries. An exception for this is when `entries_` contains
655 // only the initial NavigationEntry, which must be removed.
656
657 // Do not proceed if selected_navigation will be out of bounds for the updated
658 // entries_ list, since it will be assigned to last_committed_entry_index_ and
659 // used to index entries_.
660 // TODO(https://crbug.com/1287624): Consider also returning early if entries
661 // is empty, since there should be no work to do (rather than marking the
662 // existing entries as needing reload). Also consider returning early if the
663 // selected index is -1, which represents a no-committed-entry state.
664 if (selected_navigation < -1 ||
665 selected_navigation >=
666 base::checked_cast<int>(entries->size() + entries_.size())) {
667 return;
Rakina Zata Amni2322f4f82022-01-24 13:24:24668 }
Charlie Reis23c26da2022-01-29 00:57:47669
670 if (blink::features::IsInitialNavigationEntryEnabled()) {
671 // In InitialNavigationEntry mode, there will always be at least one entry.
672 if (selected_navigation == -1)
673 selected_navigation = 0;
674
675 if (GetLastCommittedEntry()->IsInitialEntry() && entries->size() > 0) {
676 // If we are on the initial NavigationEntry, it must be the only entry in
677 // the list. Since it's impossible to do a history navigation to the
678 // initial NavigationEntry, `pending_entry_index_` must be -1 (but
679 // `pending_entry` might be set for a new non-history navigation).
680 // Note that we should not clear `entries_` if `entries` is empty (when
681 // InitialNavigationEntry mode is enabled), since that would leave us
682 // without any NavigationEntry.
683 CHECK_EQ(1, GetEntryCount());
684 CHECK_EQ(-1, pending_entry_index_);
685 entries_.clear();
686 }
687 }
[email protected]ce3fa3c2009-04-20 19:55:57688
[email protected]ce3fa3c2009-04-20 19:55:57689 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:44690 needs_reload_type_ = NeedsReloadType::kRestoreSession;
avif16f85a72015-11-13 18:25:03691 entries_.reserve(entries->size());
Charlie Reis23c26da2022-01-29 00:57:47692 for (auto& entry : *entries) {
Rakina Zata Amni996ee412022-02-17 04:51:43693 if (entry->GetURL().is_empty()) {
694 // We're trying to restore an entry with an empty URL (e.g. from
695 // persisting the initial NavigationEntry, which is no longer possible but
696 // some old persisted sessions might still contain it). Trying to restore
697 // and navigate to an entry with an empty URL will result in crashes, so
698 // change the URL to about:blank. See also https://crbug.com/1240138.
699 CHECK_EQ(1u, entries->size());
700 entry->SetURL(GURL(url::kAboutBlankURL));
701 }
dcheng36b6aec92015-12-26 06:16:36702 entries_.push_back(
703 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
Charlie Reis23c26da2022-01-29 00:57:47704 }
avif16f85a72015-11-13 18:25:03705
706 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
707 // cleared out safely.
708 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57709
710 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36711 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57712}
713
toyoshim6142d96f2016-12-19 09:07:25714void NavigationControllerImpl::Reload(ReloadType reload_type,
715 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28716 DCHECK_NE(ReloadType::NONE, reload_type);
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28717 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32718 int current_index = -1;
719
Carlos IL42b416592019-10-07 23:10:36720 if (entry_replaced_by_post_commit_error_) {
721 // If there is an entry that was replaced by a currently active post-commit
722 // error navigation, this can't be the initial navigation.
723 DCHECK(!IsInitialNavigation());
724 // If the current entry is a post commit error, we reload the entry it
725 // replaced instead. We leave the error entry in place until a commit
726 // replaces it, but the pending entry points to the original entry in the
727 // meantime. Note that NavigateToExistingPendingEntry is able to handle the
728 // case that pending_entry_ != entries_[pending_entry_index_].
729 entry = entry_replaced_by_post_commit_error_.get();
730 current_index = GetCurrentEntryIndex();
731 } else if (IsInitialNavigation() && pending_entry_) {
732 // If we are reloading the initial navigation, just use the current
733 // pending entry. Otherwise look up the current entry.
[email protected]59167c22013-06-03 18:07:32734 entry = pending_entry_;
735 // The pending entry might be in entries_ (e.g., after a Clone), so we
736 // should also update the current_index.
737 current_index = pending_entry_index_;
738 } else {
arthursonzogni69a6a1b2019-09-17 09:23:00739 DiscardNonCommittedEntries();
[email protected]59167c22013-06-03 18:07:32740 current_index = GetCurrentEntryIndex();
741 if (current_index != -1) {
creis3da03872015-02-20 21:12:32742 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32743 }
[email protected]979a4bc2013-04-24 01:27:15744 }
[email protected]241db352013-04-22 18:04:05745
[email protected]59167c22013-06-03 18:07:32746 // If we are no where, then we can't reload. TODO(darin): We should add a
747 // CanReload method.
748 if (!entry)
749 return;
750
Rakina Zata Amnif297a802022-01-18 03:53:43751 if (entry->IsInitialEntryNotForSynchronousAboutBlank()) {
752 // We should never navigate to an existing initial NavigationEntry that is
753 // the initial NavigationEntry for the initial empty document that hasn't
754 // been overridden by the synchronous about:blank commit, to preserve
755 // legacy behavior where trying to reload when the main frame is on the
756 // initial empty document won't result in a navigation. See also
757 // https://crbug.com/1277414.
758 return;
759 }
760
Takashi Toyoshimac7df3c22019-06-25 14:18:47761 // Set ReloadType for |entry|.
toyoshima63c2a62016-09-29 09:03:26762 entry->set_reload_type(reload_type);
763
Aran Gilman37d11632019-10-08 23:07:15764 if (g_check_for_repost && check_for_repost && entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30765 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07766 // they really want to do this. If they do, the dialog will call us back
767 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57768 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02769
[email protected]106a0812010-03-18 00:15:12770 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57771 delegate_->ActivateAndShowRepostFormWarningDialog();
Lei Zhang96031532019-10-10 19:05:47772 return;
initial.commit09911bf2008-07-26 23:55:29773 }
Lei Zhang96031532019-10-10 19:05:47774
775 if (!IsInitialNavigation())
776 DiscardNonCommittedEntries();
777
778 pending_entry_ = entry;
779 pending_entry_index_ = current_index;
780 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
781
Nate Chapin45f620582021-09-30 17:45:43782 // location.reload() goes through BeginNavigation, so all reloads triggered
783 // via this codepath are browser initiated.
Lei Zhang96031532019-10-10 19:05:47784 NavigateToExistingPendingEntry(reload_type,
Nate Chapin45f620582021-09-30 17:45:43785 FrameTreeNode::kFrameTreeNodeInvalidId,
786 true /* is_browser_initiated */);
initial.commit09911bf2008-07-26 23:55:29787}
788
[email protected]d202a7c2012-01-04 07:53:47789void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48790 DCHECK(pending_reload_ != ReloadType::NONE);
791 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12792}
793
[email protected]d202a7c2012-01-04 07:53:47794void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48795 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12796 NOTREACHED();
797 } else {
toyoshim6142d96f2016-12-19 09:07:25798 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48799 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12800 }
801}
802
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57803bool NavigationControllerImpl::IsInitialNavigation() {
[email protected]27ba81c2012-08-21 17:04:09804 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11805}
806
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57807bool NavigationControllerImpl::IsInitialBlankNavigation() {
Rakina Zata Amni2322f4f82022-01-24 13:24:24808 if (blink::features::IsInitialNavigationEntryEnabled()) {
809 // Check that we're on the initial NavigationEntry and that this is not a
810 // cloned tab.
811 return IsInitialNavigation() && GetEntryCount() == 1 &&
812 GetLastCommittedEntry()->IsInitialEntry() &&
813 GetLastCommittedEntry()->restore_type() == RestoreType::kNotRestored;
814 } else {
815 return IsInitialNavigation() && GetEntryCount() == 0;
816 }
creis10a4ab72015-10-13 17:22:40817}
818
Aran Gilman37d11632019-10-08 23:07:15819NavigationEntryImpl* NavigationControllerImpl::GetEntryWithUniqueID(
820 int nav_entry_id) const {
avi254eff02015-07-01 08:27:58821 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03822 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58823}
824
Adithya Srinivasan9b0c99c2021-08-10 15:19:45825NavigationEntryImpl*
826NavigationControllerImpl::GetEntryWithUniqueIDIncludingPending(
827 int nav_entry_id) const {
828 NavigationEntryImpl* entry = GetEntryWithUniqueID(nav_entry_id);
829 if (entry)
830 return entry;
831 return pending_entry_ && pending_entry_->GetUniqueID() == nav_entry_id
Keishi Hattori0e45c022021-11-27 09:25:52832 ? pending_entry_.get()
Adithya Srinivasan9b0c99c2021-08-10 15:19:45833 : nullptr;
834}
835
W. James MacLean1c40862c2020-04-27 21:05:57836void NavigationControllerImpl::RegisterExistingOriginToPreventOptInIsolation(
837 const url::Origin& origin) {
838 for (int i = 0; i < GetEntryCount(); i++) {
839 auto* entry = GetEntryAtIndex(i);
840 entry->RegisterExistingOriginToPreventOptInIsolation(origin);
841 }
842 if (entry_replaced_by_post_commit_error_) {
843 // It's possible we could come back to this entry if the error
844 // page/interstitial goes away.
845 entry_replaced_by_post_commit_error_
846 ->RegisterExistingOriginToPreventOptInIsolation(origin);
847 }
848 // TODO(wjmaclean): Register pending commit NavigationRequests rather than
849 // visiting pending_entry_, which lacks a committed origin. This will be done
850 // in https://chromium-review.googlesource.com/c/chromium/src/+/2136703.
851}
852
avi25764702015-06-23 15:43:37853void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57854 std::unique_ptr<NavigationEntryImpl> entry) {
arthursonzogni69a6a1b2019-09-17 09:23:00855 DiscardNonCommittedEntries();
avi25764702015-06-23 15:43:37856 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27857 DCHECK_EQ(-1, pending_entry_index_);
[email protected]765b35502008-08-21 00:51:20858}
859
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57860NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() {
[email protected]cbab76d2008-10-13 22:42:47861 if (pending_entry_)
862 return pending_entry_;
863 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20864}
865
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57866NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() {
[email protected]59167c22013-06-03 18:07:32867 // The pending entry is safe to return for new (non-history), browser-
868 // initiated navigations. Most renderer-initiated navigations should not
869 // show the pending entry, to prevent URL spoof attacks.
870 //
871 // We make an exception for renderer-initiated navigations in new tabs, as
872 // long as no other page has tried to access the initial empty document in
873 // the new tab. If another page modifies this blank page, a URL spoof is
874 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32875 bool safe_to_show_pending =
876 pending_entry_ &&
877 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09878 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32879 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46880 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32881
882 // Also allow showing the pending entry for history navigations in a new tab,
883 // such as Ctrl+Back. In this case, no existing page is visible and no one
884 // can script the new tab before it commits.
Aran Gilman37d11632019-10-08 23:07:15885 if (!safe_to_show_pending && pending_entry_ && pending_entry_index_ != -1 &&
886 IsInitialNavigation() && !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32887 safe_to_show_pending = true;
888
889 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19890 return pending_entry_;
891 return GetLastCommittedEntry();
892}
893
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57894int NavigationControllerImpl::GetCurrentEntryIndex() {
[email protected]765b35502008-08-21 00:51:20895 if (pending_entry_index_ != -1)
896 return pending_entry_index_;
897 return last_committed_entry_index_;
898}
899
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57900NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() {
Rakina Zata Amni2322f4f82022-01-24 13:24:24901 if (last_committed_entry_index_ == -1) {
902 // The last committed entry must always exist when InitialNavigationEntry
903 // is enabled. TODO(https://crbug.com/524208): Remove this case and all
904 // related nullchecks entirely.
905 DCHECK(!blink::features::IsInitialNavigationEntryEnabled());
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28906 return nullptr;
Rakina Zata Amni2322f4f82022-01-24 13:24:24907 }
avif16f85a72015-11-13 18:25:03908 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20909}
910
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57911bool NavigationControllerImpl::CanViewSource() {
Jeremy Roman2d8dfe132021-07-06 20:51:26912 const std::string& mime_type =
913 frame_tree_.root()->current_frame_host()->GetPage().contents_mime_type();
Kinuko Yasuda74702f92017-07-31 03:27:53914 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
915 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27916 NavigationEntry* visible_entry = GetVisibleEntry();
917 return visible_entry && !visible_entry->IsViewSourceMode() &&
Carlos ILd51e7702020-05-07 18:51:39918 is_viewable_mime_type;
[email protected]31682282010-01-15 18:05:16919}
920
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57921int NavigationControllerImpl::GetLastCommittedEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:27922 // The last committed entry index must always be less than the number of
Rakina Zata Amni2322f4f82022-01-24 13:24:24923 // entries. If there are no entries, it must be -1.
arthursonzogni5c4c202d2017-04-25 23:41:27924 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
Rakina Zata Amni2322f4f82022-01-24 13:24:24925 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55926 return last_committed_entry_index_;
927}
928
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57929int NavigationControllerImpl::GetEntryCount() {
Carlos IL4dea8902020-05-26 15:14:29930 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55931 return static_cast<int>(entries_.size());
932}
933
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57934NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(int index) {
avi25764702015-06-23 15:43:37935 if (index < 0 || index >= GetEntryCount())
936 return nullptr;
937
avif16f85a72015-11-13 18:25:03938 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25939}
940
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57941NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(int offset) {
avi057ce1492015-06-29 15:59:47942 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20943}
944
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57945int NavigationControllerImpl::GetIndexForOffset(int offset) {
[email protected]7bc2b032012-12-19 22:45:46946 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03947}
948
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57949bool NavigationControllerImpl::CanGoBack() {
Shivani Sharma298d12852019-01-22 20:04:03950 for (int index = GetIndexForOffset(-1); index >= 0; index--) {
951 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
952 return true;
953 }
954 return false;
[email protected]765b35502008-08-21 00:51:20955}
956
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57957bool NavigationControllerImpl::CanGoForward() {
WangHui74286d52021-03-31 16:17:15958 for (int index = GetIndexForOffset(1); index < GetEntryCount(); index++) {
959 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
960 return true;
961 }
962 return false;
[email protected]765b35502008-08-21 00:51:20963}
964
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57965bool NavigationControllerImpl::CanGoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03966 int index = GetIndexForOffset(offset);
967 return index >= 0 && index < GetEntryCount();
968}
969
Xiaohan Wang7f8052e02022-01-14 18:44:28970#if BUILDFLAG(IS_ANDROID)
WangHui74286d52021-03-31 16:17:15971bool NavigationControllerImpl::CanGoToOffsetWithSkipping(int offset) {
WangHui74286d52021-03-31 16:17:15972 if (offset == 0)
973 return true;
974 int increment = offset > 0 ? 1 : -1;
975 int non_skippable_entries = 0;
976 for (int index = GetIndexForOffset(increment);
977 index >= 0 && index < GetEntryCount(); index += increment) {
978 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
979 non_skippable_entries++;
980
981 if (non_skippable_entries == std::abs(offset))
982 return true;
983 }
984 return false;
985}
986#endif
987
[email protected]d202a7c2012-01-04 07:53:47988void NavigationControllerImpl::GoBack() {
shivanisha55201872018-12-13 04:29:06989 int target_index = GetIndexForOffset(-1);
990
Elly Fong-Jones40ee8112021-06-23 19:10:52991 // Move the target index past the skippable entries.
Shivani Sharma298d12852019-01-22 20:04:03992 bool all_skippable_entries = true;
Elly Fong-Jones40ee8112021-06-23 19:10:52993 while (target_index >= 0) {
994 if (!GetEntryAtIndex(target_index)->should_skip_on_back_forward_ui()) {
Shivani Sharma298d12852019-01-22 20:04:03995 all_skippable_entries = false;
shivanisha55201872018-12-13 04:29:06996 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16997 }
Elly Fong-Jones40ee8112021-06-23 19:10:52998 target_index--;
shivanisha55201872018-12-13 04:29:06999 }
Miyoung Shin1c565c912021-03-17 12:11:211000
Shivani Sharma298d12852019-01-22 20:04:031001 // Do nothing if all entries are skippable. Normally this path would not
1002 // happen as consumers would have already checked it in CanGoBack but a lot of
1003 // tests do not do that.
Elly Fong-Jonesccc6d1f2021-06-14 18:32:421004 if (all_skippable_entries)
Shivani Sharma298d12852019-01-22 20:04:031005 return;
shivanisha55201872018-12-13 04:29:061006
shivanisha55201872018-12-13 04:29:061007 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:201008}
1009
[email protected]d202a7c2012-01-04 07:53:471010void NavigationControllerImpl::GoForward() {
shivanisha55201872018-12-13 04:29:061011 int target_index = GetIndexForOffset(1);
1012
Shivani Sharma2d5b4b6b2019-01-08 16:07:161013 // Note that at least one entry (the last one) will be non-skippable since
1014 // entries are marked skippable only when they add another entry because of
1015 // redirect or pushState.
Elly Fong-Jones40ee8112021-06-23 19:10:521016 while (target_index < static_cast<int>(entries_.size())) {
1017 if (!GetEntryAtIndex(target_index)->should_skip_on_back_forward_ui())
shivanisha55201872018-12-13 04:29:061018 break;
Elly Fong-Jones40ee8112021-06-23 19:10:521019 target_index++;
shivanisha55201872018-12-13 04:29:061020 }
shivanisha55201872018-12-13 04:29:061021 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:201022}
1023
[email protected]d202a7c2012-01-04 07:53:471024void NavigationControllerImpl::GoToIndex(int index) {
Nate Chapin45f620582021-09-30 17:45:431025 GoToIndex(index, FrameTreeNode::kFrameTreeNodeInvalidId,
1026 true /* is_browser_initiated */);
Dave Tapuska8bfd84c2019-03-26 20:47:161027}
1028
1029void NavigationControllerImpl::GoToIndex(int index,
Nate Chapin45f620582021-09-30 17:45:431030 int sandbox_frame_tree_node_id,
1031 bool is_browser_initiated) {
1032 DCHECK(sandbox_frame_tree_node_id == FrameTreeNode::kFrameTreeNodeInvalidId ||
1033 !is_browser_initiated);
sunjian30574a62017-03-21 21:39:441034 TRACE_EVENT0("browser,navigation,benchmark",
1035 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:201036 if (index < 0 || index >= static_cast<int>(entries_.size())) {
1037 NOTREACHED();
1038 return;
1039 }
1040
Rakina Zata Amnif297a802022-01-18 03:53:431041 if (entries_[index]->IsInitialEntryNotForSynchronousAboutBlank()) {
1042 // We should never navigate to an existing initial NavigationEntry that is
1043 // the initial NavigationEntry for the initial empty document that hasn't
1044 // been overridden by the synchronous about:blank commit, to preserve
1045 // legacy behavior where trying to reload when the main frame is on the
1046 // initial empty document won't result in a navigation. See also
1047 // https://crbug.com/1277414.
1048 return;
1049 }
1050
[email protected]cbab76d2008-10-13 22:42:471051 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:201052
arthursonzogni5c4c202d2017-04-25 23:41:271053 DCHECK_EQ(nullptr, pending_entry_);
1054 DCHECK_EQ(-1, pending_entry_index_);
Rakina Zata Amnif297a802022-01-18 03:53:431055
arthursonzogni5c4c202d2017-04-25 23:41:271056 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:201057 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:271058 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
1059 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
Nate Chapin45f620582021-09-30 17:45:431060 NavigateToExistingPendingEntry(ReloadType::NONE, sandbox_frame_tree_node_id,
1061 is_browser_initiated);
[email protected]765b35502008-08-21 00:51:201062}
1063
[email protected]d202a7c2012-01-04 07:53:471064void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:121065 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:031066 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:201067 return;
1068
[email protected]9ba14052012-06-22 23:50:031069 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:201070}
1071
Nate Chapin45f620582021-09-30 17:45:431072void NavigationControllerImpl::GoToOffsetFromRenderer(int offset) {
1073 // Note: This is actually reached in unit tests.
1074 if (!CanGoToOffset(offset))
1075 return;
1076
1077 GoToIndex(GetIndexForOffset(offset), FrameTreeNode::kFrameTreeNodeInvalidId,
1078 false /* is_browser_initiated */);
1079}
1080
Xiaohan Wang7f8052e02022-01-14 18:44:281081#if BUILDFLAG(IS_ANDROID)
WangHui74286d52021-03-31 16:17:151082void NavigationControllerImpl::GoToOffsetWithSkipping(int offset) {
1083 // Note: This is actually reached in unit tests.
1084 if (!CanGoToOffsetWithSkipping(offset))
1085 return;
1086
Elly Fong-Jonesccc6d1f2021-06-14 18:32:421087 if (offset == 0) {
WangHui74286d52021-03-31 16:17:151088 GoToIndex(GetIndexForOffset(offset));
1089 return;
1090 }
1091 int increment = offset > 0 ? 1 : -1;
1092 // Find the offset without counting skippable entries.
1093 int target_index = GetIndexForOffset(increment);
1094 int non_skippable_entries = 0;
1095 for (int index = target_index; index >= 0 && index < GetEntryCount();
1096 index += increment) {
1097 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
1098 non_skippable_entries++;
1099
1100 if (non_skippable_entries == std::abs(offset)) {
1101 target_index = index;
1102 break;
1103 }
1104 }
1105
1106 GoToIndex(target_index);
1107}
1108#endif
1109
[email protected]41374f12013-07-24 02:49:281110bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
Aran Gilman37d11632019-10-08 23:07:151111 if (index == last_committed_entry_index_ || index == pending_entry_index_)
[email protected]41374f12013-07-24 02:49:281112 return false;
[email protected]6a13a6c2011-12-20 21:47:121113
[email protected]43032342011-03-21 14:10:311114 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:281115 return true;
[email protected]cbab76d2008-10-13 22:42:471116}
1117
Michael Thiessen9b14d512019-09-23 21:19:471118void NavigationControllerImpl::PruneForwardEntries() {
1119 DiscardNonCommittedEntries();
1120 int remove_start_index = last_committed_entry_index_ + 1;
Lei Zhang96031532019-10-10 19:05:471121 int num_removed = static_cast<int>(entries_.size()) - remove_start_index;
Michael Thiessen9b14d512019-09-23 21:19:471122 if (num_removed <= 0)
1123 return;
1124 entries_.erase(entries_.begin() + remove_start_index, entries_.end());
1125 NotifyPrunedEntries(this, remove_start_index /* start index */,
1126 num_removed /* count */);
1127}
1128
Aran Gilman37d11632019-10-08 23:07:151129void NavigationControllerImpl::UpdateVirtualURLToURL(NavigationEntryImpl* entry,
1130 const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:321131 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:311132 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:511133 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
1134 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:321135 }
1136}
1137
Harkiran Bolariaba823e42021-05-21 18:30:361138base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURL(
1139 const GURL& url,
1140 const Referrer& referrer,
1141 ui::PageTransition transition,
1142 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:471143 LoadURLParams params(url);
1144 params.referrer = referrer;
1145 params.transition_type = transition;
1146 params.extra_headers = extra_headers;
Harkiran Bolariaba823e42021-05-21 18:30:361147 return LoadURLWithParams(params);
[email protected]cf002332012-08-14 19:17:471148}
1149
Harkiran Bolariaba823e42021-05-21 18:30:361150base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURLWithParams(
1151 const LoadURLParams& params) {
Lukasz Anforowicz435bcb582019-07-12 20:50:061152 if (params.is_renderer_initiated)
1153 DCHECK(params.initiator_origin.has_value());
1154
naskob8744d22014-08-28 17:07:431155 TRACE_EVENT1("browser,navigation",
Aran Gilman37d11632019-10-08 23:07:151156 "NavigationControllerImpl::LoadURLWithParams", "url",
1157 params.url.possibly_invalid_spec());
Ian Vollick9dda0522019-09-11 02:24:291158 bool is_explicit_navigation =
1159 GetContentClient()->browser()->IsExplicitNavigation(
1160 params.transition_type);
1161 if (HandleDebugURL(params.url, params.transition_type,
1162 is_explicit_navigation)) {
[email protected]47752982014-07-29 08:01:431163 // If Telemetry is running, allow the URL load to proceed as if it's
1164 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:491165 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:431166 cc::switches::kEnableGpuBenchmarking))
Harkiran Bolariaba823e42021-05-21 18:30:361167 return nullptr;
[email protected]47752982014-07-29 08:01:431168 }
[email protected]8bf1048012012-02-08 01:22:181169
[email protected]cf002332012-08-14 19:17:471170 // Checks based on params.load_type.
1171 switch (params.load_type) {
1172 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:431173 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:471174 break;
1175 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:261176 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:471177 NOTREACHED() << "Data load must use data scheme.";
Harkiran Bolariaba823e42021-05-21 18:30:361178 return nullptr;
[email protected]cf002332012-08-14 19:17:471179 }
1180 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:461181 }
[email protected]e47ae9472011-10-13 19:48:341182
[email protected]e47ae9472011-10-13 19:48:341183 // The user initiated a load, we don't need to reload anymore.
1184 needs_reload_ = false;
1185
Harkiran Bolariaba823e42021-05-21 18:30:361186 return NavigateWithoutEntry(params);
[email protected]132e281a2012-07-31 18:32:441187}
1188
Mohamed Abdelhalim833de902019-09-16 17:41:451189bool NavigationControllerImpl::PendingEntryMatchesRequest(
1190 NavigationRequest* request) const {
creisb4dc9332016-03-14 21:39:191191 return pending_entry_ &&
Mohamed Abdelhalim833de902019-09-16 17:41:451192 pending_entry_->GetUniqueID() == request->nav_entry_id();
creisb4dc9332016-03-14 21:39:191193}
1194
[email protected]d202a7c2012-01-04 07:53:471195bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:321196 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071197 const mojom::DidCommitProvisionalLoadParams& params,
peary21b0f797b2016-09-28 17:28:331198 LoadCommittedDetails* details,
Eugene But712f03d2018-05-22 16:03:441199 bool is_same_document_navigation,
Nate Chapinc7019dd7d2021-06-25 18:29:251200 bool was_on_initial_empty_document,
Shivani Sharmaffb32b82019-04-09 16:58:471201 bool previous_document_was_activated,
Camille Lamy10aafcd32018-12-05 15:48:131202 NavigationRequest* navigation_request) {
1203 DCHECK(navigation_request);
Chris Bookholt27faf8d2022-01-20 01:03:331204
1205 // Note: validation checks and renderer kills due to invalid commit messages
1206 // must happen before getting here, in
1207 // RenderFrameHostImpl::ValidateDidCommitParams. By the time we get here, some
1208 // effects of the navigation have already occurred.
1209
shivanigithubf405bf0d2021-11-05 17:58:331210 if (ShouldMaintainTrivialSessionHistory(rfh->frame_tree_node()) &&
1211 GetLastCommittedEntry()) {
Takashi Toyoshimaa9f66802021-08-18 02:40:171212 // Ensure that this navigation does not add a navigation entry, since
1213 // ShouldMaintainTrivialSessionHistory() means we should not add an entry
1214 // beyond the last committed one. Therefore, `should_replace_current_entry`
1215 // should be set, which replaces the current entry, or this should be a
1216 // reload, which does not create a new entry.
1217 DCHECK(params.should_replace_current_entry ||
1218 navigation_request->GetReloadType() != ReloadType::NONE);
1219 }
[email protected]cd2e15742013-03-08 04:08:311220 is_initial_navigation_ = false;
1221
[email protected]0e8db942008-09-24 21:21:481222 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:431223 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:481224 if (GetLastCommittedEntry()) {
Carlos IL42b416592019-10-07 23:10:361225 if (entry_replaced_by_post_commit_error_) {
Chris Bookholt27faf8d2022-01-20 01:03:331226 // Same document navigation events with a post-commit error should already
1227 // be blocked by RenderFrameHostImpl::ValidateDidCommitParams() before
1228 // reaching here.
1229 CHECK(!is_same_document_navigation);
1230
Carlos IL42b416592019-10-07 23:10:361231 // Any commit while a post-commit error page is showing should put the
1232 // original entry back, replacing the error page's entry. This includes
1233 // reloads, where the original entry was used as the pending entry and
1234 // should now be at the correct index at commit time.
1235 entries_[last_committed_entry_index_] =
1236 std::move(entry_replaced_by_post_commit_error_);
1237 }
Fergal Daly8e33cf62020-12-12 01:06:071238 details->previous_main_frame_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:551239 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:431240 if (pending_entry_ &&
1241 pending_entry_->GetIsOverridingUserAgent() !=
1242 GetLastCommittedEntry()->GetIsOverridingUserAgent())
1243 overriding_user_agent_changed = true;
Xiaohan Wang7f8052e02022-01-14 18:44:281244#if BUILDFLAG(IS_ANDROID)
Shu Yang5756fa422021-11-05 23:02:541245 // TODO(crbug.com/1266277): Clean up the logic of setting
1246 // |overriding_user_agent_changed| post-launch.
Shu Yang9eabbb902021-11-17 00:45:031247 if (base::FeatureList::IsEnabled(features::kRequestDesktopSiteExceptions)) {
Shu Yang5756fa422021-11-05 23:02:541248 // Must honor user agent overrides in the |navigation_request|, such as
1249 // from things like RequestDesktopSiteWebContentsObserverAndroid. As a
1250 // result, besides comparing |pending_entry_|'s user agent against
1251 // LastCommittedEntry's, also need to compare |navigation_request|'s user
1252 // agent against LastCommittedEntry's.
1253 if (navigation_request->is_overriding_user_agent() !=
1254 GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
1255 overriding_user_agent_changed = true;
1256 }
1257 }
Xiaohan Wang7f8052e02022-01-14 18:44:281258#endif // BUILDFLAG(IS_ANDROID)
[email protected]0e8db942008-09-24 21:21:481259 } else {
Gang Wu325f03f42021-02-25 20:00:461260 // GetLastCommittedEntry() is null, so this is the first entry.
Fergal Daly8e33cf62020-12-12 01:06:071261 details->previous_main_frame_url = GURL();
[email protected]0e8db942008-09-24 21:21:481262 details->previous_entry_index = -1;
Gang Wu325f03f42021-02-25 20:00:461263 if (pending_entry_ && pending_entry_->GetIsOverridingUserAgent()) {
1264 // Default setting is NOT override the user agent, so overriding the user
1265 // agent in first entry should be considered as user agent changed as
1266 // well.
1267 overriding_user_agent_changed = true;
1268 }
Xiaohan Wang7f8052e02022-01-14 18:44:281269#if BUILDFLAG(IS_ANDROID)
Shu Yang5756fa422021-11-05 23:02:541270 // TODO(crbug.com/1266277): Clean up the logic of setting
1271 // |overriding_user_agent_changed| post-launch.
Shu Yang9eabbb902021-11-17 00:45:031272 if (base::FeatureList::IsEnabled(features::kRequestDesktopSiteExceptions)) {
Shu Yang5756fa422021-11-05 23:02:541273 // Must honor user agent overrides in the |navigation_request|, such as
1274 // from things like RequestDesktopSiteWebContentsObserverAndroid. As a
1275 // result, besides checking |pending_entry_|'s user agent, also need to
1276 // check |navigation_request|'s.
1277 if (navigation_request->is_overriding_user_agent()) {
1278 overriding_user_agent_changed = true;
1279 }
1280 }
Xiaohan Wang7f8052e02022-01-14 18:44:281281#endif // BUILDFLAG(IS_ANDROID)
[email protected]0e8db942008-09-24 21:21:481282 }
[email protected]ecd9d8702008-08-28 22:10:171283
Dave Tapuskaa2ab4f252021-07-08 21:31:281284 bool is_main_frame_navigation = !rfh->GetParent();
1285
Alexander Timind2f2e4f22019-04-02 20:04:531286 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1287 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281288 // For primary frame tree navigations, choose an appropriate
1289 // BackForwardCacheMetrics to be associated with the NavigationEntry, by
1290 // either creating a new object or reusing the previous one depending on
1291 // whether it's a main frame navigation or not.
1292 scoped_refptr<BackForwardCacheMetrics> back_forward_cache_metrics;
1293 if (navigation_request->frame_tree_node()->frame_tree()->type() ==
1294 FrameTree::Type::kPrimary) {
1295 back_forward_cache_metrics =
1296 BackForwardCacheMetrics::CreateOrReuseBackForwardCacheMetrics(
1297 GetLastCommittedEntry(), is_main_frame_navigation,
1298 params.document_sequence_number);
1299 }
Alexander Timind2f2e4f22019-04-02 20:04:531300 // Notify the last active entry that we have navigated away.
Dave Tapuskaa2ab4f252021-07-08 21:31:281301 if (is_main_frame_navigation && !is_same_document_navigation) {
Alexander Timind2f2e4f22019-04-02 20:04:531302 if (NavigationEntryImpl* navigation_entry = GetLastCommittedEntry()) {
1303 if (auto* metrics = navigation_entry->back_forward_cache_metrics()) {
Hajime Hoshic7606502021-04-14 02:42:161304 metrics->MainFrameDidNavigateAwayFromDocument(rfh, navigation_request);
Alexander Timind2f2e4f22019-04-02 20:04:531305 }
1306 }
1307 }
1308
fdegans9caf66a2015-07-30 21:10:421309 // If there is a pending entry at this point, it should have a SiteInstance,
1310 // except for restored entries.
jam48cea9082017-02-15 06:13:291311 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:481312 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
Lukasz Anforowicz6b75c0d2020-12-01 22:56:081313 pending_entry_->IsRestored());
1314 if (pending_entry_ && pending_entry_->IsRestored()) {
Lukasz Anforowicz0de0f452020-12-02 19:57:151315 pending_entry_->set_restore_type(RestoreType::kNotRestored);
jam48cea9082017-02-15 06:13:291316 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:481317 }
[email protected]e9ba4472008-09-14 15:42:431318
Nasko Oskovaee2f862018-06-15 00:05:521319 // If this is a navigation to a matching pending_entry_ and the SiteInstance
1320 // has changed, this must be treated as a new navigation with replacement.
1321 // Set the replacement bit here and ClassifyNavigation will identify this
Charlie Reisc0f17d2d2021-01-12 18:52:491322 // case and return NEW_ENTRY.
Nasko Oskovaee2f862018-06-15 00:05:521323 if (!rfh->GetParent() && pending_entry_ &&
Rakina Zata Amnif6950d552020-11-24 03:26:101324 pending_entry_->GetUniqueID() ==
1325 navigation_request->commit_params().nav_entry_id &&
Nasko Oskovaee2f862018-06-15 00:05:521326 pending_entry_->site_instance() &&
1327 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
1328 DCHECK_NE(-1, pending_entry_index_);
1329 // TODO(nasko,creis): Instead of setting this value here, set
1330 // should_replace_current_entry on the parameters we send to the
1331 // renderer process as part of CommitNavigation. The renderer should
1332 // in turn send it back here as part of |params| and it can be just
1333 // enforced and renderer process terminated on mismatch.
1334 details->did_replace_entry = true;
1335 } else {
1336 // The renderer tells us whether the navigation replaces the current entry.
1337 details->did_replace_entry = params.should_replace_current_entry;
1338 }
[email protected]bcd904482012-02-01 01:54:221339
[email protected]e9ba4472008-09-14 15:42:431340 // Do navigation-type specific actions. These will make and commit an entry.
Rakina Zata Amni2322f4f82022-01-24 13:24:241341 details->type = ClassifyNavigation(rfh, params, navigation_request);
1342 if (GetLastCommittedEntry() && GetLastCommittedEntry()->IsInitialEntry()) {
Rakina Zata Amniddf10502022-01-15 02:56:551343 if (rfh->GetParent()) {
Rakina Zata Amni2322f4f82022-01-24 13:24:241344 // This is a subframe navigation on the initial empty document, which used
1345 // to not have a NavigationEntry to attach to. Now it can attach to the
1346 // initial NavigationEntry, and we must ensure that its NavigationEntry
1347 // will keep the "initial NavigationEntry" status and won't append a new
1348 // NavigationEntry (it should always do replacement instead).
1349 // See also https://crbug.com/1277414.
1350 details->should_stay_as_initial_entry = true;
Rakina Zata Amniddf10502022-01-15 02:56:551351 // Subframe navigation on initial NavigationEntry must not append a new
1352 // NavigationEntry (i.e. should not be classified as NEW_SUBFRAME). This
1353 // means every subframe navigation that happens while we're on the initial
1354 // NavigationEntry will always reuse the existing NavigationEntry and
1355 // just update the corresponding FrameNavigationEntry.
1356 DCHECK_EQ(details->type, NAVIGATION_TYPE_AUTO_SUBFRAME);
1357 } else if (details->type == NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY) {
1358 // This is a navigation that modifies the initial NavigationEntry, either
1359 // for a replacement or a reload. The initial NavigationEntry should
1360 // retain its "initial NavigationEntry" status in this case.
1361 details->should_stay_as_initial_entry = true;
Rakina Zata Amni2322f4f82022-01-24 13:24:241362 } else if (navigation_request->is_synchronous_renderer_commit() &&
1363 !navigation_request->IsSameDocument() && !rfh->GetParent() &&
1364 params.should_replace_current_entry) {
1365 // This is a synchronous about:blank navigation on the main frame, which
1366 // used to not create a NavigationEntry when we have no NavigationEntry on
1367 // FrameTree creation. We now have the initial NavigationEntry and are on
1368 // the initial NavigationEntry. To preserve old behavior, we should still
1369 // keep the "initial" status for the new NavigationEntry that we will
1370 // create for this navigation, so that subframe navigations under the
1371 // synchronously committed about:blank document will never append new
1372 // NavigationEntry, and instead will just reuse the initial
1373 // NavigationEntry and modify the corresponding FrameNavigationEntries.
1374 // See also https://crbug.com/1277414.
1375 details->should_stay_as_initial_entry = true;
Rakina Zata Amniddf10502022-01-15 02:56:551376 }
1377 }
1378 DCHECK(!details->should_stay_as_initial_entry ||
1379 GetLastCommittedEntry()->IsInitialEntry());
[email protected]4bf3522c2010-08-19 21:00:201380
eugenebutee08663a2017-04-27 17:43:121381 // is_same_document must be computed before the entry gets committed.
Eugene But712f03d2018-05-22 16:03:441382 details->is_same_document = is_same_document_navigation;
[email protected]b9d4dfdc2013-08-08 00:25:121383
Lucas Furukawa Gadanie3f7e792021-04-22 17:56:071384 details->is_prerender_activation =
1385 navigation_request->IsPrerenderedPageActivation();
1386
Peter Boströmd7592132019-01-30 04:50:311387 // Make sure we do not discard the pending entry for a different ongoing
1388 // navigation when a same document commit comes in unexpectedly from the
1389 // renderer. Limit this to a very narrow set of conditions to avoid risks to
1390 // other navigation types. See https://crbug.com/900036.
1391 // TODO(crbug.com/926009): Handle history.pushState() as well.
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061392 bool keep_pending_entry =
1393 is_same_document_navigation &&
1394 details->type == NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY &&
1395 pending_entry_ && !PendingEntryMatchesRequest(navigation_request);
Peter Boströmd7592132019-01-30 04:50:311396
[email protected]0e8db942008-09-24 21:21:481397 switch (details->type) {
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061398 case NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY:
Charlie Reisc0f17d2d2021-01-12 18:52:491399 RendererDidNavigateToNewEntry(
shivanisha41f04c52018-12-12 15:52:051400 rfh, params, details->is_same_document, details->did_replace_entry,
Rakina Zata Amnia4e27222021-12-22 01:05:001401 previous_document_was_activated, navigation_request, details);
[email protected]e9ba4472008-09-14 15:42:431402 break;
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061403 case NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY:
Charlie Reisc0f17d2d2021-01-12 18:52:491404 RendererDidNavigateToExistingEntry(rfh, params, details->is_same_document,
1405 was_restored, navigation_request,
Rakina Zata Amnia4e27222021-12-22 01:05:001406 keep_pending_entry, details);
[email protected]e9ba4472008-09-14 15:42:431407 break;
[email protected]8ff00d72012-10-23 19:12:211408 case NAVIGATION_TYPE_NEW_SUBFRAME:
Shivani Sharmaffb32b82019-04-09 16:58:471409 RendererDidNavigateNewSubframe(
1410 rfh, params, details->is_same_document, details->did_replace_entry,
Rakina Zata Amnia4e27222021-12-22 01:05:001411 previous_document_was_activated, navigation_request, details);
[email protected]e9ba4472008-09-14 15:42:431412 break;
[email protected]8ff00d72012-10-23 19:12:211413 case NAVIGATION_TYPE_AUTO_SUBFRAME:
Antonio Sartori78a749f2020-11-30 12:03:391414 if (!RendererDidNavigateAutoSubframe(
Nate Chapinc7019dd7d2021-06-25 18:29:251415 rfh, params, details->is_same_document,
Rakina Zata Amnia4e27222021-12-22 01:05:001416 was_on_initial_empty_document, navigation_request, details)) {
creisce0ef3572017-01-26 17:53:081417 // We don't send a notification about auto-subframe PageState during
1418 // UpdateStateForFrame, since it looks like nothing has changed. Send
1419 // it here at commit time instead.
1420 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:431421 return false;
creis59d5a47cb2016-08-24 23:57:191422 }
[email protected]e9ba4472008-09-14 15:42:431423 break;
Rakina Zata Amni2322f4f82022-01-24 13:24:241424 case NAVIGATION_TYPE_NAV_IGNORE:
1425 // If a pending navigation was in progress, this canceled it. We should
1426 // discard it and make sure it is removed from the URL bar. After that,
1427 // there is nothing we can do with this navigation, so we just return to
1428 // the caller that nothing has happened.
1429 if (pending_entry_)
1430 DiscardNonCommittedEntries();
1431 return false;
Aran Gilman37d11632019-10-08 23:07:151432 case NAVIGATION_TYPE_UNKNOWN:
[email protected]e9ba4472008-09-14 15:42:431433 NOTREACHED();
Aran Gilman37d11632019-10-08 23:07:151434 break;
[email protected]765b35502008-08-21 00:51:201435 }
1436
[email protected]688aa65c62012-09-28 04:32:221437 // At this point, we know that the navigation has just completed, so
1438 // record the time.
1439 //
1440 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:261441 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:331442 base::Time timestamp =
1443 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
1444 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
danakjf26536bf2020-09-10 00:46:131445 << timestamp.ToDeltaSinceWindowsEpoch().InMicroseconds();
[email protected]688aa65c62012-09-28 04:32:221446
Peter Boströmd7592132019-01-30 04:50:311447 // If we aren't keeping the pending entry, there shouldn't be one at this
1448 // point. Clear it again in case any error cases above forgot to do so.
1449 // TODO(pbos): Consider a CHECK here that verifies that the pending entry has
1450 // been cleared instead of protecting against it.
1451 if (!keep_pending_entry)
Rakina Zata Amniddf10502022-01-15 02:56:551452 DiscardNonCommittedEntriesWithCommitDetails(details);
[email protected]f233e4232013-02-23 00:55:141453
[email protected]e9ba4472008-09-14 15:42:431454 // All committed entries should have nonempty content state so WebKit doesn't
1455 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:471456 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:321457 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:221458 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:441459 active_entry->SetHttpStatusCode(params.http_status_code);
Alexander Timind2f2e4f22019-04-02 20:04:531460 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1461 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281462 if (back_forward_cache_metrics &&
1463 !active_entry->back_forward_cache_metrics()) {
Alexander Timind2f2e4f22019-04-02 20:04:531464 active_entry->set_back_forward_cache_metrics(
1465 std::move(back_forward_cache_metrics));
1466 }
Dave Tapuskaa2ab4f252021-07-08 21:31:281467
1468 // `back_forward_cache_metrics()` may return null as we do not record
1469 // back-forward cache metrics for navigations in non-primary frame trees.
1470 if (active_entry->back_forward_cache_metrics()) {
1471 active_entry->back_forward_cache_metrics()->DidCommitNavigation(
1472 navigation_request,
1473 back_forward_cache_.IsAllowed(navigation_request->GetURL()));
1474 }
naskoc7533512016-05-06 17:01:121475
Charles Reisc0507202017-09-21 00:40:021476 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
1477 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
1478 // A mismatch can occur if the renderer lies or due to a unique name collision
1479 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:121480 FrameNavigationEntry* frame_entry =
1481 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:021482 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
1483 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:031484 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:081485 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
1486 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:031487 DCHECK(params.page_state == frame_entry->page_state());
Nasko Oskovbbcfc0002019-11-20 20:03:201488
1489 // Remember the bindings the renderer process has at this point, so that
1490 // we do not grant this entry additional bindings if we come back to it.
1491 frame_entry->SetBindings(rfh->GetEnabledBindings());
creis4e2ecb72015-06-20 00:46:301492 }
[email protected]132e281a2012-07-31 18:32:441493
[email protected]97d8f0d2013-10-29 16:49:211494 // Once it is committed, we no longer need to track several pieces of state on
1495 // the entry.
naskoc7533512016-05-06 17:01:121496 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131497
[email protected]49bd30e62011-03-22 20:12:591498 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221499 // TODO(creis): This check won't pass for subframes until we create entries
1500 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001501 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421502 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591503
[email protected]e9ba4472008-09-14 15:42:431504 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001505 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001506 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311507 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531508
arthursonzogni7ddc6542021-04-09 09:16:501509 active_entry->SetIsOverridingUserAgent(
1510 navigation_request->is_overriding_user_agent());
Scott Violetc36f7462020-05-06 23:13:031511
[email protected]93f230e02011-06-01 14:40:001512 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291513
aelias100c9192017-01-13 00:01:431514 if (overriding_user_agent_changed)
1515 delegate_->UpdateOverridingUserAgent();
1516
creis03b48002015-11-04 00:54:561517 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1518 // one knows the latest NavigationEntry it is showing (whether it has
1519 // committed anything in this navigation or not). This allows things like
1520 // state and title updates from RenderFrames to apply to the latest relevant
1521 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381522 int nav_entry_id = active_entry->GetUniqueID();
Carlos Caballero40b0efd2021-01-26 11:55:001523 for (FrameTreeNode* node : frame_tree_.Nodes())
dcheng57e39e22016-01-21 00:25:381524 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
Hayato Ito2c8c08d02021-06-23 03:38:431525
1526 if (navigation_request->IsPrerenderedPageActivation()) {
1527 BroadcastHistoryOffsetAndLength();
1528 // TODO(crbug.com/1222893): Broadcasting happens after the prerendered page
1529 // is activated. As a result, a "prerenderingchange" event listener sees the
1530 // history.length which is not updated yet. We should guarantee that
1531 // history's length and offset should be updated before a
1532 // "prerenderingchange" event listener runs. One possible approach is to use
1533 // the same IPC which "prerenderingchange" uses, and propagate history's
1534 // length and offset together with that.
1535 }
1536
[email protected]e9ba4472008-09-14 15:42:431537 return true;
initial.commit09911bf2008-07-26 23:55:291538}
1539
[email protected]8ff00d72012-10-23 19:12:211540NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321541 RenderFrameHostImpl* rfh,
Rakina Zata Amnif6950d552020-11-24 03:26:101542 const mojom::DidCommitProvisionalLoadParams& params,
Rakina Zata Amni2322f4f82022-01-24 13:24:241543 NavigationRequest* navigation_request) {
Piotr Tworekbad51282020-09-30 19:17:591544 TraceReturnReason<tracing_category::kNavigation> trace_return(
Nasko Oskovae49e292020-08-13 02:08:511545 "ClassifyNavigation");
1546
avi7c6f35e2015-05-08 17:52:381547 if (params.did_create_new_entry) {
Rakina Zata Amni2322f4f82022-01-24 13:24:241548 // A new entry. We may or may not have a corresponding pending entry, and
1549 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001550 if (!rfh->GetParent()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491551 trace_return.set_return_reason("new entry, no parent, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061552 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381553 }
1554
Rakina Zata Amni2322f4f82022-01-24 13:24:241555 // When this is a new subframe navigation, we should have a committed page
1556 // in which it's a subframe. This may not be the case when an iframe is
1557 // navigated on a popup navigated to about:blank (the iframe would be
1558 // written into the popup by script on the main page). For these cases,
1559 // there isn't any navigation stuff we can do, so just ignore it.
1560 if (!GetLastCommittedEntry()) {
1561 trace_return.set_return_reason("new entry, no last committed, ignore");
1562 return NAVIGATION_TYPE_NAV_IGNORE;
1563 }
1564
1565 // Valid subframe navigation.
Nasko Oskovae49e292020-08-13 02:08:511566 trace_return.set_return_reason("new entry, new subframe");
avi7c6f35e2015-05-08 17:52:381567 return NAVIGATION_TYPE_NEW_SUBFRAME;
1568 }
1569
Charlie Reisc0f17d2d2021-01-12 18:52:491570 // We only clear the session history in tests when navigating to a new entry.
avi7c6f35e2015-05-08 17:52:381571 DCHECK(!params.history_list_was_cleared);
1572
avi39c1edd32015-06-04 20:06:001573 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381574 // All manual subframes would be did_create_new_entry and handled above, so
1575 // we know this is auto.
Rakina Zata Amni2322f4f82022-01-24 13:24:241576 if (GetLastCommittedEntry()) {
1577 trace_return.set_return_reason("subframe, last commmited, auto subframe");
1578 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1579 }
1580
1581 // We ignore subframes created in non-committed pages; we'd appreciate if
1582 // people stopped doing that.
1583 trace_return.set_return_reason("subframe, no last commmited, ignore");
1584 return NAVIGATION_TYPE_NAV_IGNORE;
avi7c6f35e2015-05-08 17:52:381585 }
1586
Rakina Zata Amnif6950d552020-11-24 03:26:101587 const int nav_entry_id = navigation_request->commit_params().nav_entry_id;
1588 if (nav_entry_id == 0) {
avi7c6f35e2015-05-08 17:52:381589 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1590 // create a new page.
1591
Rakina Zata Amni2322f4f82022-01-24 13:24:241592 // Just like above in the did_create_new_entry case, it's possible to
1593 // scribble onto an uncommitted page. Again, there isn't any navigation
1594 // stuff that we can do, so ignore it here as well.
1595 NavigationEntry* last_committed = GetLastCommittedEntry();
1596 if (!last_committed) {
1597 trace_return.set_return_reason("nav entry 0, no last committed, ignore");
1598 return NAVIGATION_TYPE_NAV_IGNORE;
1599 }
1600
Hayato Ito2ae49442021-07-02 02:59:251601 // This main frame navigation is not a history navigation (since
1602 // nav_entry_id is 0), but didn't create a new entry. So this must be a
1603 // reload or a replacement navigation, which will modify the existing entry.
1604 //
Nasko Oskov332593c2018-08-16 17:21:341605 // TODO(nasko): With error page isolation, reloading an existing session
1606 // history entry can result in change of SiteInstance. Check for such a case
Charlie Reisc0f17d2d2021-01-12 18:52:491607 // here and classify it as NEW_ENTRY, as such navigations should be treated
Nasko Oskov332593c2018-08-16 17:21:341608 // as new with replacement.
Nasko Oskovae49e292020-08-13 02:08:511609 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491610 "nav entry 0, last committed, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061611 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381612 }
1613
Rakina Zata Amnif6950d552020-11-24 03:26:101614 if (pending_entry_ && pending_entry_->GetUniqueID() == nav_entry_id) {
Nasko Oskovaee2f862018-06-15 00:05:521615 // If the SiteInstance of the |pending_entry_| does not match the
1616 // SiteInstance that got committed, treat this as a new navigation with
1617 // replacement. This can happen if back/forward/reload encounters a server
1618 // redirect to a different site or an isolated error page gets successfully
1619 // reloaded into a different SiteInstance.
1620 if (pending_entry_->site_instance() &&
1621 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491622 trace_return.set_return_reason("pending matching nav entry, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061623 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521624 }
creis77c9aa32015-09-25 19:59:421625
Nasko Oskovaee2f862018-06-15 00:05:521626 if (pending_entry_index_ == -1) {
1627 // In this case, we have a pending entry for a load of a new URL but Blink
1628 // didn't do a new navigation (params.did_create_new_entry). First check
1629 // to make sure Blink didn't treat a new cross-process navigation as
1630 // inert, and thus set params.did_create_new_entry to false. In that case,
Charlie Reis7e2cb6d2021-01-26 01:27:161631 // we must treat it as NEW rather than the converted reload case below,
1632 // since the new SiteInstance doesn't match the last committed entry.
Nasko Oskovaee2f862018-06-15 00:05:521633 if (!GetLastCommittedEntry() ||
1634 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance()) {
Charlie Reis7e2cb6d2021-01-26 01:27:161635 trace_return.set_return_reason("new pending, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061636 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521637 }
1638
1639 // Otherwise, this happens when you press enter in the URL bar to reload.
Charlie Reis7e2cb6d2021-01-26 01:27:161640 // We will create a pending entry, but NavigateWithoutEntry will convert
1641 // it to a reload since it's the same page and not create a new entry for
1642 // it. (The user doesn't want to have a new back/forward entry when they
1643 // do this.) Therefore we want to just ignore the pending entry and go
1644 // back to where we were (the "existing entry").
1645 trace_return.set_return_reason("new pending, existing (same) entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061646 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521647 }
avi7c6f35e2015-05-08 17:52:381648 }
1649
creis26d22632017-04-21 20:23:561650 // Everything below here is assumed to be an existing entry, but if there is
1651 // no last committed entry, we must consider it a new navigation instead.
Nasko Oskovae49e292020-08-13 02:08:511652 if (!GetLastCommittedEntry()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491653 trace_return.set_return_reason("no last committed, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061654 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
Nasko Oskovae49e292020-08-13 02:08:511655 }
creis26d22632017-04-21 20:23:561656
Rakina Zata Amni153d5702021-09-13 22:48:001657 if (navigation_request->commit_params().intended_as_new_entry) {
avi7c6f35e2015-05-08 17:52:381658 // This was intended to be a navigation to a new entry but the pending entry
Charlie Reisc0f17d2d2021-01-12 18:52:491659 // got cleared in the meanwhile. Classify as EXISTING_ENTRY because we may
1660 // or may not have a pending entry.
Charlie Reis7e2cb6d2021-01-26 01:27:161661 trace_return.set_return_reason("intended as new entry, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061662 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381663 }
1664
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121665 if (navigation_request->DidEncounterError() &&
1666 failed_pending_entry_id_ != 0 &&
Rakina Zata Amnif6950d552020-11-24 03:26:101667 nav_entry_id == failed_pending_entry_id_) {
avi7c6f35e2015-05-08 17:52:381668 // If the renderer was going to a new pending entry that got cleared because
1669 // of an error, this is the case of the user trying to retry a failed load
Charlie Reisc0f17d2d2021-01-12 18:52:491670 // by pressing return. Classify as EXISTING_ENTRY because we probably don't
avi7c6f35e2015-05-08 17:52:381671 // have a pending entry.
Nasko Oskovae49e292020-08-13 02:08:511672 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491673 "unreachable, matching pending, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061674 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381675 }
1676
Charlie Reisc0f17d2d2021-01-12 18:52:491677 // Now we know that the notification is for an existing entry; find it.
Rakina Zata Amnif6950d552020-11-24 03:26:101678 int existing_entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
Nasko Oskovae49e292020-08-13 02:08:511679 trace_return.traced_value()->SetInteger("existing_entry_index",
1680 existing_entry_index);
avi7c6f35e2015-05-08 17:52:381681 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441682 // The renderer has committed a navigation to an entry that no longer
1683 // exists. Because the renderer is showing that page, resurrect that entry.
Charlie Reisc0f17d2d2021-01-12 18:52:491684 trace_return.set_return_reason("existing entry -1, new entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061685 return NAVIGATION_TYPE_MAIN_FRAME_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381686 }
1687
avi7c6f35e2015-05-08 17:52:381688 // Since we weeded out "new" navigations above, we know this is an existing
1689 // (back/forward) navigation.
Charlie Reisc0f17d2d2021-01-12 18:52:491690 trace_return.set_return_reason("default return, existing entry");
Yoshisato Yanagisawa2ccba602021-11-17 08:24:061691 return NAVIGATION_TYPE_MAIN_FRAME_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381692}
1693
Rakina Zata Amni3460d382021-10-29 00:43:371694void NavigationControllerImpl::UpdateNavigationEntryDetails(
1695 NavigationEntryImpl* entry,
1696 RenderFrameHostImpl* rfh,
1697 const mojom::DidCommitProvisionalLoadParams& params,
1698 NavigationRequest* request,
1699 NavigationEntryImpl::UpdatePolicy update_policy,
Rakina Zata Amnia4e27222021-12-22 01:05:001700 bool is_new_entry,
1701 LoadCommittedDetails* commit_details) {
Rakina Zata Amni3460d382021-10-29 00:43:371702 // Update the FrameNavigationEntry.
Rakina Zata Amniafd3c6582021-11-30 06:19:171703 std::vector<GURL> redirects;
Rakina Zata Amni3460d382021-10-29 00:43:371704 entry->AddOrUpdateFrameEntry(
1705 rfh->frame_tree_node(), update_policy, params.item_sequence_number,
1706 params.document_sequence_number, params.app_history_key,
1707 rfh->GetSiteInstance(), nullptr, params.url,
1708 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amniafd3c6582021-11-30 06:19:171709 Referrer(*params.referrer),
1710 request ? request->common_params().initiator_origin : params.origin,
1711 request ? request->GetRedirectChain() : redirects, params.page_state,
1712 params.method, params.post_id, nullptr /* blob_url_loader_factory */,
1713 (request && request->web_bundle_navigation_info())
Rakina Zata Amni3460d382021-10-29 00:43:371714 ? request->web_bundle_navigation_info()->Clone()
1715 : nullptr,
Rakina Zata Amniafd3c6582021-11-30 06:19:171716 (request ? request->GetSubresourceWebBundleNavigationInfo() : nullptr),
Rakina Zata Amni3460d382021-10-29 00:43:371717 ComputePolicyContainerPoliciesForFrameEntry(
Rakina Zata Amniafd3c6582021-11-30 06:19:171718 rfh, request && request->IsSameDocument(),
1719 request ? request->common_params().url : params.url));
Rakina Zata Amni3460d382021-10-29 00:43:371720
1721 if (rfh->GetParent()) {
1722 // Only modify the NavigationEntry for main frame navigations.
1723 return;
1724 }
1725 if (entry->update_virtual_url_with_url())
1726 UpdateVirtualURLToURL(entry, params.url);
1727 // Don't use the page type from the pending entry. Some interstitial page
1728 // may have set the type to interstitial. Once we commit, however, the page
1729 // type must always be normal or error.
Rakina Zata Amniafd3c6582021-11-30 06:19:171730 entry->set_page_type((request && request->DidEncounterError())
1731 ? PAGE_TYPE_ERROR
1732 : PAGE_TYPE_NORMAL);
Rakina Zata Amnif297a802022-01-18 03:53:431733 if (commit_details && commit_details->should_stay_as_initial_entry) {
1734 // Retain the "initial NavigationEntry" status.
1735 if (request->IsSameDocument()) {
1736 // If this is for a same-document navigation, the NavigationEntry must be
1737 // reused and should already be marked as the initial NavigationEntry.
1738 DCHECK(entry->IsInitialEntry());
1739 } else {
1740 // If this is for a cross-document navigation, it can be caused by a
1741 // renderer-initiated reload, or the synchronous about:blank commit. Mark
1742 // "for synchronous about:blank" in the latter case, and also when it is
1743 // reloading a "for synchronous about:blank" entry. Otherwise, the entry
1744 // is not for a synchronous about:blank commit.
1745 NavigationEntryImpl::InitialNavigationEntryState new_state =
1746 NavigationEntryImpl::InitialNavigationEntryState::
1747 kInitialNotForSynchronousAboutBlank;
1748 if (entry->IsInitialEntryForSynchronousAboutBlank() ||
1749 request->is_synchronous_renderer_commit()) {
1750 new_state = NavigationEntryImpl::InitialNavigationEntryState::
1751 kInitialForSynchronousAboutBlank;
1752 }
1753 entry->set_initial_navigation_entry_state(new_state);
1754 }
1755 } else if (commit_details && !commit_details->should_stay_as_initial_entry) {
1756 // Remove the "initial NavigationEntry" status.
1757 entry->set_initial_navigation_entry_state(
1758 NavigationEntryImpl::InitialNavigationEntryState::kNonInitial);
Rakina Zata Amnia4e27222021-12-22 01:05:001759 }
Rakina Zata Amniddf10502022-01-15 02:56:551760
Rakina Zata Amni3460d382021-10-29 00:43:371761 if (is_new_entry) {
1762 // Some properties of the NavigationEntry are only set when the entry is
1763 // new (we aren't reusing it).
1764 entry->SetTransitionType(params.transition);
Rakina Zata Amniafd3c6582021-11-30 06:19:171765 entry->SetOriginalRequestURL(request ? request->GetOriginalRequestURL()
1766 : GURL::EmptyGURL());
Rakina Zata Amni3460d382021-10-29 00:43:371767 DCHECK_EQ(rfh->is_overriding_user_agent(), params.is_overriding_user_agent);
1768 entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
1769 } else {
1770 // We are reusing the NavigationEntry. The site instance will normally be
1771 // the same except for a few cases:
1772 // 1) session restore, when no site instance will be assigned or
1773 // 2) redirect, when the site instance is reset.
1774 DCHECK(!entry->site_instance() || !entry->GetRedirectChain().empty() ||
1775 entry->site_instance() == rfh->GetSiteInstance());
1776 }
1777}
1778
Rakina Zata Amniafd3c6582021-11-30 06:19:171779void NavigationControllerImpl::CreateInitialEntry() {
1780 DCHECK_EQ(entries_.size(), 0u);
1781 RenderFrameHostImpl* rfh = frame_tree_.root()->current_frame_host();
1782 auto params = mojom::DidCommitProvisionalLoadParams::New();
1783 // The initial NavigationEntry's URL is the empty URL. This preserves the old
1784 // behavior of WebContent's GetLastCommittedURL() and GetVisibleURL() from
1785 // before we have initial NavigationEntries.
1786 params->url = GURL::EmptyGURL();
1787 params->http_status_code = 0;
1788 params->url_is_unreachable = false;
1789 params->method = "GET";
1790 params->should_replace_current_entry = false;
1791 params->post_id = -1;
1792 params->embedding_token = base::UnguessableToken::Create();
1793 params->navigation_token = base::UnguessableToken::Create();
1794 params->did_create_new_entry = true;
1795 params->origin = rfh->GetLastCommittedOrigin();
1796 params->should_update_history = true;
1797 params->item_sequence_number = 0;
1798 params->document_sequence_number = 0;
1799 bool is_in_fenced_frame_tree = rfh->frame_tree_node()->IsInFencedFrameTree();
1800 params->transition = is_in_fenced_frame_tree
1801 ? ui::PAGE_TRANSITION_AUTO_SUBFRAME
1802 : ui::PAGE_TRANSITION_LINK;
1803 params->referrer = blink::mojom::Referrer::New();
1804
1805 // Create and insert the initial NavigationEntry.
1806 auto new_entry = std::make_unique<NavigationEntryImpl>(
1807 rfh->GetSiteInstance(), params->url, Referrer(*params->referrer),
1808 rfh->GetLastCommittedOrigin(), std::u16string() /* title */,
1809 ui::PAGE_TRANSITION_TYPED, false /* renderer_initiated */,
1810 nullptr /* blob_url_loader_factory */, true /* is_initial_entry */);
1811 UpdateNavigationEntryDetails(
1812 new_entry.get(), rfh, *params, nullptr /* request */,
Rakina Zata Amnia4e27222021-12-22 01:05:001813 NavigationEntryImpl::UpdatePolicy::kUpdate, true /* is_new_entry */,
1814 nullptr /* commit_details */);
Rakina Zata Amniafd3c6582021-11-30 06:19:171815
1816 InsertOrReplaceEntry(std::move(new_entry), false /* replace_entry */,
1817 false /* was_post_commit_error */,
Rakina Zata Amnia4e27222021-12-22 01:05:001818 is_in_fenced_frame_tree, nullptr /* commit_details */);
Rakina Zata Amniafd3c6582021-11-30 06:19:171819}
1820
Charlie Reisc0f17d2d2021-01-12 18:52:491821void NavigationControllerImpl::RendererDidNavigateToNewEntry(
creis3da03872015-02-20 21:12:321822 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071823 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361824 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441825 bool replace_entry,
Shivani Sharmaffb32b82019-04-09 16:58:471826 bool previous_document_was_activated,
Rakina Zata Amnia4e27222021-12-22 01:05:001827 NavigationRequest* request,
1828 LoadCommittedDetails* commit_details) {
dcheng9bfa5162016-04-09 01:00:571829 std::unique_ptr<NavigationEntryImpl> new_entry;
Anton Bikineevf62d1bf2021-05-15 17:56:071830 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:451831 request->common_params().initiator_origin;
Lukasz Anforowicz435bcb582019-07-12 20:50:061832
creisf49dfc92016-07-26 17:05:181833 // First check if this is an in-page navigation. If so, clone the current
1834 // entry instead of looking at the pending entry, because the pending entry
1835 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361836 if (is_same_document && GetLastCommittedEntry()) {
Nate Chapin63db0d12022-01-20 22:03:301837 FrameNavigationEntry* previous_frame_entry =
1838 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
Patrick Monette50e8bd82019-06-13 22:40:451839 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:481840 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:081841 params.document_sequence_number, params.app_history_key,
1842 rfh->GetSiteInstance(), nullptr, params.url,
1843 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:091844 Referrer(*params.referrer), initiator_origin,
1845 request->GetRedirectChain(), params.page_state, params.method,
1846 params.post_id, nullptr /* blob_url_loader_factory */,
Antonio Sartori78a749f2020-11-30 12:03:391847 nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:481848 request->GetSubresourceWebBundleNavigationInfo(),
Antonio Sartori78a749f2020-11-30 12:03:391849 // We will set the document policies later in this function.
Nate Chapin63db0d12022-01-20 22:03:301850 nullptr /* policy_container_policies */,
1851 // Try to preserve protect_url_in_app_history from the previous
1852 // FrameNavigationEntry.
1853 previous_frame_entry &&
1854 previous_frame_entry->protect_url_in_app_history());
Charles Reisf44482022017-10-13 21:15:031855
creisf49dfc92016-07-26 17:05:181856 new_entry = GetLastCommittedEntry()->CloneAndReplace(
Harkiran Bolaria081c5c22021-09-13 08:44:531857 frame_entry, true, request->frame_tree_node(), frame_tree_.root());
Mike West800532c2021-10-14 09:26:521858 if (new_entry->GetURL().DeprecatedGetOriginAsURL() !=
1859 params.url.DeprecatedGetOriginAsURL()) {
jama78746e2017-02-22 17:21:571860 // TODO(jam): we had one report of this with a URL that was redirecting to
1861 // only tildes. Until we understand that better, don't copy the cert in
1862 // this case.
1863 new_entry->GetSSL() = SSLStatus();
jama78746e2017-02-22 17:21:571864 }
creisf49dfc92016-07-26 17:05:181865
Patrick Monette50e8bd82019-06-13 22:40:451866 // It is expected that |frame_entry| is now owned by |new_entry|. This means
1867 // that |frame_entry| should now have a reference count of exactly 2: one
1868 // due to the local variable |frame_entry|, and another due to |new_entry|
1869 // also retaining one. This should never fail, because it's the main frame.
1870 CHECK(!frame_entry->HasOneRef() && frame_entry->HasAtLeastOneRef());
creisf49dfc92016-07-26 17:05:181871 }
1872
Harkiran Bolaria59290d62021-03-17 01:53:011873 // If this is an activation navigation from a prerendered page, transfer the
1874 // new entry from an entry already created and stored in the
1875 // NavigationRequest. |new_entry| will not have been set prior to this as
1876 // |is_same_document| is mutually exclusive with
1877 // |IsPrerenderedPageActivation|.
1878 if (request->IsPrerenderedPageActivation()) {
1879 DCHECK(!is_same_document);
1880 DCHECK(!new_entry);
1881 new_entry = request->TakePrerenderNavigationEntry();
1882 DCHECK(new_entry);
1883 }
1884
Charlie Reisc0f17d2d2021-01-12 18:52:491885 // Only make a copy of the pending entry if it is appropriate for the new
1886 // document that just loaded. Verify this by checking if the entry corresponds
Mohamed Abdelhalim833de902019-09-16 17:41:451887 // to the given NavigationRequest. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041888 // 1. The SiteInstance hasn't been assigned to something else.
1889 // 2. The pending entry was intended as a new entry, rather than being a
1890 // history navigation that was interrupted by an unrelated,
1891 // renderer-initiated navigation.
1892 // TODO(csharrison): Investigate whether we can remove some of the coarser
1893 // checks.
Mohamed Abdelhalim833de902019-09-16 17:41:451894 if (!new_entry && PendingEntryMatchesRequest(request) &&
1895 pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341896 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431897 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351898 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431899
Camille Lamy62b826012019-02-26 09:15:471900 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451901 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
creisf49dfc92016-07-26 17:05:181902 }
1903
Charlie Reisc0f17d2d2021-01-12 18:52:491904 // For cross-document commits with no matching pending entry, create a new
1905 // entry.
creisf49dfc92016-07-26 17:05:181906 if (!new_entry) {
Lukasz Anforowicz435bcb582019-07-12 20:50:061907 new_entry = std::make_unique<NavigationEntryImpl>(
arthursonzogni73fe3212020-11-17 13:24:071908 rfh->GetSiteInstance(), params.url, Referrer(*params.referrer),
1909 initiator_origin,
Jan Wilken Dörrieaace0cfef2021-03-11 22:01:581910 std::u16string(), // title
Mohamed Abdelhalim833de902019-09-16 17:41:451911 params.transition, request->IsRendererInitiated(),
Rakina Zata Amniafd3c6582021-11-30 06:19:171912 nullptr, // blob_url_loader_factory
1913 false); // is_initial_entry
[email protected]f8f93eb2012-09-25 03:06:241914
1915 // Find out whether the new entry needs to update its virtual URL on URL
1916 // change and set up the entry accordingly. This is needed to correctly
1917 // update the virtual URL when replaceState is called after a pushState.
1918 GURL url = params.url;
1919 bool needs_update = false;
Charlie Reisc0f17d2d2021-01-12 18:52:491920 // When navigating to a new entry, give the browser URL handler a chance to
[email protected]f1eb87a2011-05-06 17:49:411921 // update the virtual URL based on the new URL. For example, this is needed
1922 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1923 // the URL.
Rakina Zata Amni3460d382021-10-29 00:43:371924 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1925 &url, browser_context_, &needs_update);
1926 new_entry->set_update_virtual_url_with_url(needs_update);
1927
Camille Lamy62b826012019-02-26 09:15:471928 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451929 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
[email protected]e9ba4472008-09-14 15:42:431930 }
1931
Harkiran Bolaria59290d62021-03-17 01:53:011932 // TODO(crbug.com/1179428) - determine which parts of the entry need to be set
1933 // for prerendered contents, if any. This is because prerendering/activation
1934 // technically won't be creating a new document. Unlike BFCache, prerendering
1935 // creates a new NavigationEntry rather than using an existing one.
1936 if (!request->IsPrerenderedPageActivation()) {
Rakina Zata Amni3460d382021-10-29 00:43:371937 UpdateNavigationEntryDetails(new_entry.get(), rfh, params, request,
1938 NavigationEntryImpl::UpdatePolicy::kUpdate,
Rakina Zata Amnia4e27222021-12-22 01:05:001939 true /* is_new_entry */, commit_details);
creis8b5cd4c2015-06-19 00:11:081940
Harkiran Bolaria59290d62021-03-17 01:53:011941 // history.pushState() is classified as a navigation to a new page, but sets
1942 // is_same_document to true. In this case, we already have the title and
1943 // favicon available, so set them immediately.
1944 if (is_same_document && GetLastCommittedEntry()) {
1945 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
1946 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1947 }
[email protected]3a868f212014-08-09 10:41:191948 }
[email protected]ff64b3e2014-05-31 04:07:331949
[email protected]60d6cca2013-04-30 08:47:131950 DCHECK(!params.history_list_was_cleared || !replace_entry);
1951 // The browser requested to clear the session history when it initiated the
1952 // navigation. Now we know that the renderer has updated its state accordingly
1953 // and it is safe to also clear the browser side history.
1954 if (params.history_list_was_cleared) {
Rakina Zata Amniddf10502022-01-15 02:56:551955 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]60d6cca2013-04-30 08:47:131956 entries_.clear();
1957 last_committed_entry_index_ = -1;
1958 }
1959
Nasko Oskovaee2f862018-06-15 00:05:521960 // If this is a new navigation with replacement and there is a
1961 // pending_entry_ which matches the navigation reported by the renderer
1962 // process, then it should be the one replaced, so update the
1963 // last_committed_entry_index_ to use it.
1964 if (replace_entry && pending_entry_index_ != -1 &&
Rakina Zata Amnif6950d552020-11-24 03:26:101965 pending_entry_->GetUniqueID() == request->commit_params().nav_entry_id) {
Nasko Oskovaee2f862018-06-15 00:05:521966 last_committed_entry_index_ = pending_entry_index_;
1967 }
1968
Alexander Timine3ec4192020-04-20 16:39:401969 SetShouldSkipOnBackForwardUIIfNeeded(
shivanigithube92c33da2020-09-14 13:01:411970 replace_entry, previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:401971 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
shivanisha41f04c52018-12-12 15:52:051972
Carlos IL42b416592019-10-07 23:10:361973 InsertOrReplaceEntry(std::move(new_entry), replace_entry,
Dave Tapuska87696ae2021-11-18 18:48:311974 !request->post_commit_error_page_html().empty(),
Rakina Zata Amnia4e27222021-12-22 01:05:001975 rfh->frame_tree_node()->IsInFencedFrameTree(),
1976 commit_details);
[email protected]e9ba4472008-09-14 15:42:431977}
1978
Charlie Reisc0f17d2d2021-01-12 18:52:491979void NavigationControllerImpl::RendererDidNavigateToExistingEntry(
creis3da03872015-02-20 21:12:321980 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071981 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361982 bool is_same_document,
jam48cea9082017-02-15 06:13:291983 bool was_restored,
Mohamed Abdelhalim833de902019-09-16 17:41:451984 NavigationRequest* request,
Rakina Zata Amnia4e27222021-12-22 01:05:001985 bool keep_pending_entry,
1986 LoadCommittedDetails* commit_details) {
creis26d22632017-04-21 20:23:561987 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1988 << "that a last committed entry exists.";
1989
[email protected]e9ba4472008-09-14 15:42:431990 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001991 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431992
Charlie Reis7e2cb6d2021-01-26 01:27:161993 NavigationEntryImpl* entry = nullptr;
Rakina Zata Amni153d5702021-09-13 22:48:001994 if (request->commit_params().intended_as_new_entry) {
Charlie Reis7e2cb6d2021-01-26 01:27:161995 // We're guaranteed to have a last committed entry if intended_as_new_entry
1996 // is true.
avicbdc4c12015-07-01 16:07:111997 entry = GetLastCommittedEntry();
Charlie Reis7e2cb6d2021-01-26 01:27:161998 DCHECK(entry);
1999
2000 // If the NavigationRequest matches a new pending entry and is classified as
2001 // EXISTING_ENTRY, then it is a navigation to the same URL that was
2002 // converted to a reload, such as a user pressing enter in the omnibox.
2003 if (pending_entry_ && pending_entry_index_ == -1 &&
2004 pending_entry_->GetUniqueID() ==
2005 request->commit_params().nav_entry_id) {
2006 // Note: The pending entry will usually have a real ReloadType here, but
2007 // it can still be ReloadType::NONE in cases that
2008 // ShouldTreatNavigationAsReload returns false (e.g., POST, view-source).
2009
2010 // If we classified this correctly, the SiteInstance should not have
2011 // changed.
2012 CHECK_EQ(entry->site_instance(), rfh->GetSiteInstance());
2013
2014 // For converted reloads, we assign the entry's unique ID to be that of
2015 // the new one. Since this is always the result of a user action, we want
2016 // to dismiss infobars, etc. like a regular user-initiated navigation.
2017 entry->set_unique_id(pending_entry_->GetUniqueID());
2018
2019 // The extra headers may have changed due to reloading with different
2020 // headers.
2021 entry->set_extra_headers(pending_entry_->extra_headers());
2022 }
2023 // Otherwise, this was intended as a new entry but the pending entry was
2024 // lost in the meantime and no new entry was created. We are stuck at the
2025 // last committed entry.
2026
2027 // Even if this is a converted reload from pressing enter in the omnibox,
2028 // the server could redirect, requiring an update to the SSL status. If this
2029 // is a same document navigation, though, there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:452030 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
Charlie Reis7e2cb6d2021-01-26 01:27:162031 if (!is_same_document) {
Camille Lamy62b826012019-02-26 09:15:472032 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452033 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
Charlie Reis7e2cb6d2021-01-26 01:27:162034 }
Rakina Zata Amnif6950d552020-11-24 03:26:102035 } else if (const int nav_entry_id = request->commit_params().nav_entry_id) {
avicbdc4c12015-07-01 16:07:112036 // This is a browser-initiated navigation (back/forward/reload).
Rakina Zata Amnif6950d552020-11-24 03:26:102037 entry = GetEntryWithUniqueID(nav_entry_id);
jamd208b90ce2016-09-01 16:58:162038
eugenebut604866f2017-05-10 21:35:362039 if (is_same_document) {
Mohamed Abdelhalim833de902019-09-16 17:41:452040 // There's no SSLStatus in the NavigationRequest for same document
eugenebut604866f2017-05-10 21:35:362041 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
2042 // this was a restored same document navigation entry, then it won't have
2043 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
2044 // navigated it.
jam48cea9082017-02-15 06:13:292045 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
Mike West800532c2021-10-14 09:26:522046 if (entry->GetURL().DeprecatedGetOriginAsURL() ==
2047 last_entry->GetURL().DeprecatedGetOriginAsURL() &&
jam48cea9082017-02-15 06:13:292048 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
2049 was_restored) {
2050 entry->GetSSL() = last_entry->GetSSL();
2051 }
2052 } else {
Mohamed Abdelhalim833de902019-09-16 17:41:452053 // In rapid back/forward navigations |request| sometimes won't have a cert
2054 // (http://crbug.com/727892). So we use the request's cert if it exists,
John Abd-El-Malek3f247082017-12-07 19:02:192055 // otherwise we only reuse the existing cert if the origins match.
Mohamed Abdelhalim833de902019-09-16 17:41:452056 if (request->GetSSLInfo().has_value() &&
2057 request->GetSSLInfo()->is_valid()) {
2058 entry->GetSSL() = SSLStatus(*(request->GetSSLInfo()));
Mike West800532c2021-10-14 09:26:522059 } else if (entry->GetURL().DeprecatedGetOriginAsURL() !=
2060 request->GetURL().DeprecatedGetOriginAsURL()) {
John Abd-El-Malek3f247082017-12-07 19:02:192061 entry->GetSSL() = SSLStatus();
2062 }
jam48cea9082017-02-15 06:13:292063 }
avicbdc4c12015-07-01 16:07:112064 } else {
2065 // This is renderer-initiated. The only kinds of renderer-initated
Rakina Zata Amni557afb92021-07-17 04:39:572066 // navigations that are EXISTING_ENTRY are same-document navigations that
2067 // result in replacement (e.g. history.replaceState(), location.replace(),
2068 // forced replacements for trivial session history contexts). For these
2069 // cases, we reuse the last committed entry.
avicbdc4c12015-07-01 16:07:112070 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:102071
Mikel Astizba9cf2fd2017-12-17 10:38:102072 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
2073 // to avoid misleading interpretations (e.g. URLs paired with
2074 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
2075 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
2076 // | PAGE_TRANSITION_CLIENT_REDIRECT).
2077
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572078 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(entry, entry);
Mikel Astizba9cf2fd2017-12-17 10:38:102079
eugenebut604866f2017-05-10 21:35:362080 // If this is a same document navigation, then there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:452081 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:362082 if (!is_same_document)
Camille Lamy62b826012019-02-26 09:15:472083 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:452084 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
avicbdc4c12015-07-01 16:07:112085 }
2086 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:432087
Rakina Zata Amni3460d382021-10-29 00:43:372088 UpdateNavigationEntryDetails(entry, rfh, params, request,
2089 NavigationEntryImpl::UpdatePolicy::kUpdate,
Rakina Zata Amnia4e27222021-12-22 01:05:002090 false /* is_new_entry */, commit_details);
creis22a7b4c2016-04-28 07:20:302091
[email protected]5ccd4dc2012-10-24 02:28:142092 // The redirected to page should not inherit the favicon from the previous
2093 // page.
eugenebut604866f2017-05-10 21:35:362094 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:482095 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:142096
Peter Boströmd7592132019-01-30 04:50:312097 // We should also usually discard the pending entry if it corresponds to a
2098 // different navigation, since that one is now likely canceled. In rare
2099 // cases, we leave the pending entry for another navigation in place when we
2100 // know it is still ongoing, to avoid a flicker in the omnibox (see
2101 // https://crbug.com/900036).
[email protected]e9ba4472008-09-14 15:42:432102 //
2103 // Note that we need to use the "internal" version since we don't want to
2104 // actually change any other state, just kill the pointer.
Peter Boströmd7592132019-01-30 04:50:312105 if (!keep_pending_entry)
Rakina Zata Amnia4e27222021-12-22 01:05:002106 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]40bcc302009-03-02 20:50:392107
Carlos IL4dea8902020-05-26 15:14:292108 // Update the last committed index to reflect the committed entry.
avicbdc4c12015-07-01 16:07:112109 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:432110}
2111
[email protected]d202a7c2012-01-04 07:53:472112void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:322113 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072114 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:362115 bool is_same_document,
Shivani Sharmaffb32b82019-04-09 16:58:472116 bool replace_entry,
2117 bool previous_document_was_activated,
Rakina Zata Amnia4e27222021-12-22 01:05:002118 NavigationRequest* request,
2119 LoadCommittedDetails* commit_details) {
avi25f5f9e2015-07-17 20:08:262120 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
2121 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
Rakina Zata Amniddf10502022-01-15 02:56:552122 // The NEW_SUBFRAME path should never result in an initial NavigationEntry.
2123 DCHECK(!commit_details->should_stay_as_initial_entry);
[email protected]09b8f82f2009-06-16 20:22:112124
[email protected]e9ba4472008-09-14 15:42:432125 // Manual subframe navigations just get the current entry cloned so the user
2126 // can go back or forward to it. The actual subframe information will be
2127 // stored in the page state for each of those entries. This happens out of
2128 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:092129 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
2130 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:382131
Mikel Astizba9cf2fd2017-12-17 10:38:102132 // The DCHECK below documents the fact that we don't know of any situation
2133 // where |replace_entry| is true for subframe navigations. This simplifies
2134 // reasoning about the replacement struct for subframes (see
2135 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
2136 DCHECK(!replace_entry);
2137
Patrick Monette50e8bd82019-06-13 22:40:452138 // This FrameNavigationEntry might not end up being used in the
2139 // CloneAndReplace() call below, if a spot can't be found for it in the tree.
Anton Bikineevf62d1bf2021-05-15 17:56:072140 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:452141 request->common_params().initiator_origin;
Nate Chapin63db0d12022-01-20 22:03:302142 std::unique_ptr<PolicyContainerPolicies> policy_container_policies =
2143 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
2144 request->GetURL());
2145 bool protect_url_in_app_history = false;
2146 if (is_same_document) {
2147 FrameNavigationEntry* previous_frame_entry =
2148 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
2149 // Try to preserve protect_url_in_app_history from the previous
2150 // FrameNavigationEntry.
2151 protect_url_in_app_history =
2152 previous_frame_entry &&
2153 previous_frame_entry->protect_url_in_app_history();
2154 } else {
2155 protect_url_in_app_history =
2156 policy_container_policies &&
2157 ShouldProtectUrlInAppHistory(
2158 policy_container_policies->referrer_policy);
2159 }
2160
Patrick Monette50e8bd82019-06-13 22:40:452161 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:482162 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:082163 params.document_sequence_number, params.app_history_key,
2164 rfh->GetSiteInstance(), nullptr, params.url,
2165 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:092166 Referrer(*params.referrer), initiator_origin, request->GetRedirectChain(),
arthursonzogni73fe3212020-11-17 13:24:072167 params.page_state, params.method, params.post_id,
2168 nullptr /* blob_url_loader_factory */,
Tsuyoshi Horo0c605782020-05-27 00:21:032169 request->web_bundle_navigation_info()
2170 ? request->web_bundle_navigation_info()->Clone()
Antonio Sartori78a749f2020-11-30 12:03:392171 : nullptr,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482172 request->GetSubresourceWebBundleNavigationInfo(),
Nate Chapin63db0d12022-01-20 22:03:302173 std::move(policy_container_policies), protect_url_in_app_history);
Charles Reisf44482022017-10-13 21:15:032174
creisce0ef3572017-01-26 17:53:082175 std::unique_ptr<NavigationEntryImpl> new_entry =
2176 GetLastCommittedEntry()->CloneAndReplace(
Patrick Monette50e8bd82019-06-13 22:40:452177 std::move(frame_entry), is_same_document, rfh->frame_tree_node(),
Carlos Caballero40b0efd2021-01-26 11:55:002178 frame_tree_.root());
creise062d542015-08-25 02:01:552179
Alexander Timine3ec4192020-04-20 16:39:402180 SetShouldSkipOnBackForwardUIIfNeeded(
shivanigithube92c33da2020-09-14 13:01:412181 replace_entry, previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:402182 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
Shivani Sharmaffb32b82019-04-09 16:58:472183
creisce0ef3572017-01-26 17:53:082184 // TODO(creis): Update this to add the frame_entry if we can't find the one
Patrick Monette50e8bd82019-06-13 22:40:452185 // to replace, which can happen due to a unique name change. See
2186 // https://crbug.com/607205. For now, the call to CloneAndReplace() will
2187 // delete the |frame_entry| when the function exits if it doesn't get used.
creis96fc55082015-06-13 06:42:382188
Dave Tapuska87696ae2021-11-18 18:48:312189 InsertOrReplaceEntry(std::move(new_entry), replace_entry, false,
Rakina Zata Amnia4e27222021-12-22 01:05:002190 rfh->frame_tree_node()->IsInFencedFrameTree(),
2191 commit_details);
[email protected]e9ba4472008-09-14 15:42:432192}
2193
[email protected]d202a7c2012-01-04 07:53:472194bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:322195 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072196 const mojom::DidCommitProvisionalLoadParams& params,
Antonio Sartori78a749f2020-11-30 12:03:392197 bool is_same_document,
Nate Chapinc7019dd7d2021-06-25 18:29:252198 bool was_on_initial_empty_document,
Rakina Zata Amnia4e27222021-12-22 01:05:002199 NavigationRequest* request,
2200 LoadCommittedDetails* commit_details) {
avi9f07a0c2015-02-18 22:51:292201 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
2202 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
2203
[email protected]e9ba4472008-09-14 15:42:432204 // We're guaranteed to have a previously committed entry, and we now need to
2205 // handle navigation inside of a subframe in it without creating a new entry.
2206 DCHECK(GetLastCommittedEntry());
2207
creis913c63ce2016-07-16 19:52:522208 // For newly created subframes, we don't need to send a commit notification.
2209 // This is only necessary for history navigations in subframes.
2210 bool send_commit_notification = false;
2211
Rakina Zata Amnif6950d552020-11-24 03:26:102212 // If |nav_entry_id| is non-zero and matches an existing entry, this
2213 // is a history navigation. Update the last committed index accordingly. If
2214 // we don't recognize the |nav_entry_id|, it might be a recently
2215 // pruned entry. We'll handle it below.
2216 if (const int nav_entry_id = request->commit_params().nav_entry_id) {
2217 int entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
creis3cdc3b02015-05-29 23:00:472218 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:062219 // Make sure that a subframe commit isn't changing the main frame's
2220 // origin. Otherwise the renderer process may be confused, leading to a
2221 // URL spoof. We can't check the path since that may change
2222 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:572223 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
2224 // about:blank, file, and unique origins are more subtle to get right.
Charlie Reis95fbca442021-05-21 21:38:242225 // We should use checks similar to RenderFrameHostImpl's
2226 // CanCommitUrlAndOrigin on the main frame during subframe commits.
2227 // See https://crbug.com/1209092.
creis37988b92016-06-10 18:03:572228 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
2229 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
2230 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
2231 dest_top_url.SchemeIsHTTPOrHTTPS() &&
Mike West800532c2021-10-14 09:26:522232 current_top_url.DeprecatedGetOriginAsURL() !=
2233 dest_top_url.DeprecatedGetOriginAsURL()) {
Chris Bookholt10f4b7332022-02-14 18:25:442234 bad_message::ReceivedBadMessage(rfh->GetMainFrame()->GetProcess(),
creisfb6eeb62016-05-10 19:01:512235 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:062236 }
creis3cdc3b02015-05-29 23:00:472237
creis913c63ce2016-07-16 19:52:522238 // We only need to discard the pending entry in this history navigation
2239 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:062240 last_committed_entry_index_ = entry_index;
Rakina Zata Amnia4e27222021-12-22 01:05:002241 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
creis913c63ce2016-07-16 19:52:522242
2243 // History navigations should send a commit notification.
2244 send_commit_notification = true;
avi98405c22015-05-21 20:47:062245 }
[email protected]e9ba4472008-09-14 15:42:432246 }
[email protected]f233e4232013-02-23 00:55:142247
creisce0ef3572017-01-26 17:53:082248 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
2249 // it may be a "history auto" case where we update an existing one.
2250 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
Nate Chapin9f169072021-06-09 19:32:372251
2252 // We may want to update |last_committed|'s FrameNavigationEntry (if one
2253 // exists), or we may want to clobber it and create a new one. We update in
2254 // cases where the corresponding FrameNavigationEntry is conceptually similar
2255 // to the document described by the commit params: same-document
2256 // navigations, history traversal to an existing entry, and reloads (including
2257 // a "soft reload" where we navigate to the same url without flagging it as a
2258 // reload). But in the case of a different document that is not logically
2259 // related to the committed FrameNavigationEntry's document (cross-document,
2260 // not same url, not a reload, not a history traversal), we replace rather
2261 // than update.
Nate Chapinc7019dd7d2021-06-25 18:29:252262 //
Nate Chapin9f169072021-06-09 19:32:372263 // In the case where we update, the FrameNavigationEntry will potentially be
2264 // shared across multiple NavigationEntries, and any updates will be reflected
2265 // in all of those NavigationEntries. In the replace case, any existing
2266 // sharing with other NavigationEntries will stop.
Nate Chapinc7019dd7d2021-06-25 18:29:252267 //
2268 // When navigating away from the initial empty document, we also update rather
2269 // than replace. Either update or replace will overwrite the initial empty
2270 // document state for |last_committed|, but if the FrameNavigationEntry for
2271 // the initial empty document is shared across multiple NavigationEntries (due
2272 // to a navigation in another frame), we want to make sure we overwrite the
2273 // initial empty document state everywhere this FrameNavigationEntry is used,
2274 // which is accompished by updating the existing FrameNavigationEntry.
Nate Chapin9f169072021-06-09 19:32:372275 FrameNavigationEntry* last_committed_frame_entry =
2276 last_committed->GetFrameEntry(rfh->frame_tree_node());
2277 NavigationEntryImpl::UpdatePolicy update_policy =
2278 NavigationEntryImpl::UpdatePolicy::kUpdate;
2279 if (request->common_params().navigation_type ==
Minggang Wangb9f3fa92021-07-01 15:30:312280 blink::mojom::NavigationType::DIFFERENT_DOCUMENT &&
Nate Chapin9f169072021-06-09 19:32:372281 last_committed_frame_entry &&
Nate Chapinc7019dd7d2021-06-25 18:29:252282 last_committed_frame_entry->url() != params.url &&
2283 !was_on_initial_empty_document) {
Nate Chapin9f169072021-06-09 19:32:372284 update_policy = NavigationEntryImpl::UpdatePolicy::kReplace;
2285 }
2286
Rakina Zata Amni3460d382021-10-29 00:43:372287 UpdateNavigationEntryDetails(last_committed, rfh, params, request,
Rakina Zata Amnia4e27222021-12-22 01:05:002288 update_policy, false /* is_new_entry */,
2289 commit_details);
creis625a0c7d2015-03-24 23:17:122290
creis913c63ce2016-07-16 19:52:522291 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:432292}
2293
[email protected]d202a7c2012-01-04 07:53:472294int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:232295 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:032296 for (size_t i = 0; i < entries_.size(); ++i) {
2297 if (entries_[i].get() == entry)
2298 return i;
2299 }
2300 return -1;
[email protected]765b35502008-08-21 00:51:202301}
2302
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572303void NavigationControllerImpl::CopyStateFrom(NavigationController* temp,
Francois Dorayeaace782017-06-21 16:37:242304 bool needs_reload) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572305 NavigationControllerImpl* source =
2306 static_cast<NavigationControllerImpl*>(temp);
[email protected]ce3fa3c2009-04-20 19:55:572307 // Verify that we look new.
Rakina Zata Amni2322f4f82022-01-24 13:24:242308 if (blink::features::IsInitialNavigationEntryEnabled()) {
2309 DCHECK_EQ(1, GetEntryCount());
2310 DCHECK(GetLastCommittedEntry()->IsInitialEntry());
2311 } else {
2312 DCHECK_EQ(0, GetEntryCount());
2313 }
Lei Zhang96031532019-10-10 19:05:472314 DCHECK(!GetPendingEntry());
Rakina Zata Amniafd3c6582021-11-30 06:19:172315 entries_.clear();
[email protected]ce3fa3c2009-04-20 19:55:572316
Rakina Zata Amniafd3c6582021-11-30 06:19:172317 if (source->GetEntryCount() == 0) {
Rakina Zata Amniafd3c6582021-11-30 06:19:172318 return;
2319 }
[email protected]ce3fa3c2009-04-20 19:55:572320
Francois Dorayeaace782017-06-21 16:37:242321 needs_reload_ = needs_reload;
Bo Liucdfa4b12018-11-06 00:21:442322 needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572323 InsertEntriesFrom(source, source->GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:572324
Fergal Dalya1d569972021-03-16 03:24:532325 for (auto& it : source->session_storage_namespace_map_) {
[email protected]fdac6ade2013-07-20 01:06:302326 SessionStorageNamespaceImpl* source_namespace =
Fergal Dalya1d569972021-03-16 03:24:532327 static_cast<SessionStorageNamespaceImpl*>(it.second.get());
2328 session_storage_namespace_map_[it.first] = source_namespace->Clone();
[email protected]fdac6ade2013-07-20 01:06:302329 }
[email protected]4e6419c2010-01-15 04:50:342330
Lukasz Anforowicz0de0f452020-12-02 19:57:152331 FinishRestore(source->last_committed_entry_index_, RestoreType::kRestored);
[email protected]ce3fa3c2009-04-20 19:55:572332}
2333
Aran Gilman37d11632019-10-08 23:07:152334void NavigationControllerImpl::CopyStateFromAndPrune(NavigationController* temp,
2335 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:162336 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012337 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:162338
[email protected]d202a7c2012-01-04 07:53:472339 NavigationControllerImpl* source =
2340 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:252341
avi2b177592014-12-10 02:08:022342 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:012343 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:252344
[email protected]474f8512013-05-31 22:31:162345 // We now have one entry, possibly with a new pending entry. Ensure that
2346 // adding the entries from source won't put us over the limit.
2347 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:572348 if (!replace_entry)
Shivani Sharmad8c8d652019-02-13 17:27:572349 source->PruneOldestSkippableEntryIfFull();
[email protected]944822b2012-03-02 20:57:252350
Carlos IL4dea8902020-05-26 15:14:292351 // Insert the entries from source. Ignore any pending entry, since it has not
2352 // committed in source.
[email protected]474f8512013-05-31 22:31:162353 int max_source_index = source->last_committed_entry_index_;
Rakina Zata Amniafd3c6582021-11-30 06:19:172354 DCHECK_NE(max_source_index, -1);
2355 max_source_index++;
[email protected]e78a6852013-12-13 08:08:572356
2357 // Ignore the source's current entry if merging with replacement.
2358 // TODO(davidben): This should preserve entries forward of the current
2359 // too. http://crbug.com/317872
2360 if (replace_entry && max_source_index > 0)
2361 max_source_index--;
2362
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572363 InsertEntriesFrom(source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:252364
2365 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:552366 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:142367
Hayato Ito2c8c08d02021-06-23 03:38:432368 BroadcastHistoryOffsetAndLength();
[email protected]e1cd5452010-08-26 18:03:252369}
2370
[email protected]79368982013-11-13 01:11:012371bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:162372 // If there is no last committed entry, we cannot prune. Even if there is a
2373 // pending entry, it may not commit, leaving this WebContents blank, despite
2374 // possibly giving it new entries via CopyStateFromAndPrune.
2375 if (last_committed_entry_index_ == -1)
2376 return false;
[email protected]9350602e2013-02-26 23:27:442377
[email protected]474f8512013-05-31 22:31:162378 // We cannot prune if there is a pending entry at an existing entry index.
2379 // It may not commit, so we have to keep the last committed entry, and thus
2380 // there is no sensible place to keep the pending entry. It is ok to have
2381 // a new pending entry, which can optionally commit as a new navigation.
2382 if (pending_entry_index_ != -1)
2383 return false;
2384
[email protected]474f8512013-05-31 22:31:162385 return true;
2386}
2387
[email protected]79368982013-11-13 01:11:012388void NavigationControllerImpl::PruneAllButLastCommitted() {
2389 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:162390
avi2b177592014-12-10 02:08:022391 DCHECK_EQ(0, last_committed_entry_index_);
2392 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:442393
Hayato Ito2c8c08d02021-06-23 03:38:432394 BroadcastHistoryOffsetAndLength();
[email protected]9350602e2013-02-26 23:27:442395}
2396
[email protected]79368982013-11-13 01:11:012397void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:162398 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012399 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:262400
[email protected]474f8512013-05-31 22:31:162401 // Erase all entries but the last committed entry. There may still be a
2402 // new pending entry after this.
2403 entries_.erase(entries_.begin(),
2404 entries_.begin() + last_committed_entry_index_);
2405 entries_.erase(entries_.begin() + 1, entries_.end());
2406 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:262407}
2408
Christian Dullweber1af31e62018-02-22 11:49:482409void NavigationControllerImpl::DeleteNavigationEntries(
2410 const DeletionPredicate& deletionPredicate) {
2411 // It is up to callers to check the invariants before calling this.
2412 CHECK(CanPruneAllButLastCommitted());
2413 std::vector<int> delete_indices;
2414 for (size_t i = 0; i < entries_.size(); i++) {
2415 if (i != static_cast<size_t>(last_committed_entry_index_) &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572416 deletionPredicate.Run(entries_[i].get())) {
Christian Dullweber1af31e62018-02-22 11:49:482417 delete_indices.push_back(i);
2418 }
2419 }
2420 if (delete_indices.empty())
2421 return;
2422
2423 if (delete_indices.size() == GetEntryCount() - 1U) {
2424 PruneAllButLastCommitted();
2425 } else {
2426 // Do the deletion in reverse to preserve indices.
2427 for (auto it = delete_indices.rbegin(); it != delete_indices.rend(); ++it) {
2428 RemoveEntryAtIndex(*it);
2429 }
Hayato Ito2c8c08d02021-06-23 03:38:432430 BroadcastHistoryOffsetAndLength();
Christian Dullweber1af31e62018-02-22 11:49:482431 }
2432 delegate()->NotifyNavigationEntriesDeleted();
2433}
2434
Shivani Sharma883f5f32019-02-12 18:20:012435bool NavigationControllerImpl::IsEntryMarkedToBeSkipped(int index) {
2436 auto* entry = GetEntryAtIndex(index);
2437 return entry && entry->should_skip_on_back_forward_ui();
2438}
2439
Carlos Caballero35ce710c2019-09-19 10:59:452440BackForwardCacheImpl& NavigationControllerImpl::GetBackForwardCache() {
2441 return back_forward_cache_;
2442}
2443
clamy987a3752018-05-03 17:36:262444void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
2445 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
2446 // progress, since this will cause a use-after-free. (We only allow this
2447 // when the tab is being destroyed for shutdown, since it won't return to
2448 // NavigateToEntry in that case.) http://crbug.com/347742.
Takashi Toyoshimaea534ef22021-07-21 03:27:592449 CHECK(!in_navigate_to_pending_entry_ || frame_tree_.IsBeingDestroyed());
clamy987a3752018-05-03 17:36:262450
2451 if (was_failure && pending_entry_) {
2452 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
2453 } else {
2454 failed_pending_entry_id_ = 0;
2455 }
2456
2457 if (pending_entry_) {
2458 if (pending_entry_index_ == -1)
2459 delete pending_entry_;
2460 pending_entry_index_ = -1;
2461 pending_entry_ = nullptr;
2462 }
arthursonzogni66f711c2019-10-08 14:40:362463
2464 // Ensure any refs to the current pending entry are ignored if they get
2465 // deleted, by clearing the set of known refs. All future pending entries will
2466 // only be affected by new refs.
2467 pending_entry_refs_.clear();
clamy987a3752018-05-03 17:36:262468}
2469
2470void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
2471 if (pending_entry_)
2472 pending_entry_->set_ssl_error(error);
2473}
2474
Xiaohan Wang7f8052e02022-01-14 18:44:282475#if BUILDFLAG(IS_ANDROID)
Camille Lamy5193caa2018-10-12 11:59:422476// static
2477bool NavigationControllerImpl::ValidateDataURLAsString(
2478 const scoped_refptr<const base::RefCountedString>& data_url_as_string) {
2479 if (!data_url_as_string)
2480 return false;
2481
2482 if (data_url_as_string->size() > kMaxLengthOfDataURLString)
2483 return false;
2484
2485 // The number of characters that is enough for validating a data: URI.
2486 // From the GURL's POV, the only important part here is scheme, it doesn't
2487 // check the actual content. Thus we can take only the prefix of the url, to
2488 // avoid unneeded copying of a potentially long string.
2489 const size_t kDataUriPrefixMaxLen = 64;
2490 GURL data_url(
2491 std::string(data_url_as_string->front_as<char>(),
2492 std::min(data_url_as_string->size(), kDataUriPrefixMaxLen)));
2493 if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
2494 return false;
2495
2496 return true;
2497}
2498#endif
2499
Shivani Sharma194877032019-03-07 17:52:472500void NavigationControllerImpl::NotifyUserActivation() {
2501 // When a user activation occurs, ensure that all adjacent entries for the
2502 // same document clear their skippable bit, so that the history manipulation
2503 // intervention does not apply to them.
2504 auto* last_committed_entry = GetLastCommittedEntry();
2505 if (!last_committed_entry)
2506 return;
Shivani Sharma194877032019-03-07 17:52:472507
shivanigithub99368382021-06-16 18:33:372508 if (base::FeatureList::IsEnabled(
2509 features::kDebugHistoryInterventionNoUserActivation)) {
2510 return;
2511 }
2512
Shivani Sharmac4cc8922019-04-18 03:11:172513 SetSkippableForSameDocumentEntries(GetLastCommittedEntryIndex(), false);
Shivani Sharma194877032019-03-07 17:52:472514}
2515
clamy987a3752018-05-03 17:36:262516bool NavigationControllerImpl::StartHistoryNavigationInNewSubframe(
2517 RenderFrameHostImpl* render_frame_host,
Julie Jeongeun Kimed2e5ba72019-09-12 10:14:172518 mojo::PendingAssociatedRemote<mojom::NavigationClient>* navigation_client) {
clamy987a3752018-05-03 17:36:262519 NavigationEntryImpl* entry =
2520 GetEntryWithUniqueID(render_frame_host->nav_entry_id());
2521 if (!entry)
2522 return false;
2523
2524 FrameNavigationEntry* frame_entry =
2525 entry->GetFrameEntry(render_frame_host->frame_tree_node());
2526 if (!frame_entry)
2527 return false;
2528
Nate Chapin45f620582021-09-30 17:45:432529 // |is_browser_initiated| is false here because a navigation in a new subframe
2530 // always begins with renderer action (i.e., an HTML element being inserted
2531 // into the DOM), so it is always renderer-initiated.
Camille Lamy5193caa2018-10-12 11:59:422532 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572533 render_frame_host->frame_tree_node(), entry, frame_entry,
clamyea99ea12018-05-28 13:54:232534 ReloadType::NONE, false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:432535 true /* is_history_navigation_in_new_child */,
2536 false /* is_browser_initiated */);
clamyea99ea12018-05-28 13:54:232537
2538 if (!request)
2539 return false;
2540
arthursonzognif046d4a2019-12-12 19:08:102541 request->SetNavigationClient(std::move(*navigation_client));
Arthur Hemery06173ce2019-05-29 12:11:412542
Lukasz Anforowicz9ee83c272020-12-01 20:14:052543 render_frame_host->frame_tree_node()->navigator().Navigate(std::move(request),
2544 ReloadType::NONE);
clamyea99ea12018-05-28 13:54:232545
2546 return true;
clamy987a3752018-05-03 17:36:262547}
2548
Tsuyoshi Horo52fd08e2020-07-07 07:03:452549bool NavigationControllerImpl::ReloadFrame(FrameTreeNode* frame_tree_node) {
2550 NavigationEntryImpl* entry = GetEntryAtIndex(GetCurrentEntryIndex());
2551 if (!entry)
2552 return false;
Rakina Zata Amnif297a802022-01-18 03:53:432553
2554 if (entry->IsInitialEntryNotForSynchronousAboutBlank()) {
2555 // We should never navigate to an existing initial NavigationEntry that is
2556 // the initial NavigationEntry for the initial empty document that hasn't
2557 // been overridden by the synchronous about:blank commit, to preserve
2558 // legacy behavior where trying to reload when the main frame is on the
2559 // initial empty document won't result in a navigation. See also
2560 // https://crbug.com/1277414.
2561 return false;
2562 }
Tsuyoshi Horo52fd08e2020-07-07 07:03:452563 FrameNavigationEntry* frame_entry = entry->GetFrameEntry(frame_tree_node);
2564 if (!frame_entry)
2565 return false;
John Abd-El-Malek5b669132020-07-14 01:04:142566 ReloadType reload_type = ReloadType::NORMAL;
2567 entry->set_reload_type(reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452568 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
John Abd-El-Malek5b669132020-07-14 01:04:142569 frame_tree_node, entry, frame_entry, reload_type,
Tsuyoshi Horo52fd08e2020-07-07 07:03:452570 false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:432571 false /* is_history_navigation_in_new_child */,
2572 true /* is_browser_initiated */);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452573 if (!request)
2574 return false;
Lukasz Anforowicz9ee83c272020-12-01 20:14:052575 frame_tree_node->navigator().Navigate(std::move(request), reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452576 return true;
2577}
2578
Dave Tapuska8bfd84c2019-03-26 20:47:162579void NavigationControllerImpl::GoToOffsetInSandboxedFrame(
2580 int offset,
2581 int sandbox_frame_tree_node_id) {
2582 if (!CanGoToOffset(offset))
2583 return;
Nate Chapin45f620582021-09-30 17:45:432584 GoToIndex(GetIndexForOffset(offset), sandbox_frame_tree_node_id,
2585 false /* is_browser_initiated */);
Dave Tapuska8bfd84c2019-03-26 20:47:162586}
2587
clamy987a3752018-05-03 17:36:262588void NavigationControllerImpl::NavigateFromFrameProxy(
2589 RenderFrameHostImpl* render_frame_host,
2590 const GURL& url,
Chris Hamilton83272dc2021-02-23 00:24:022591 const blink::LocalFrameToken* initiator_frame_token,
Antonio Sartori9a82f6f32020-12-14 09:22:452592 int initiator_process_id,
Anton Bikineevf62d1bf2021-05-15 17:56:072593 const absl::optional<url::Origin>& initiator_origin,
clamy987a3752018-05-03 17:36:262594 bool is_renderer_initiated,
2595 SiteInstance* source_site_instance,
2596 const Referrer& referrer,
2597 ui::PageTransition page_transition,
2598 bool should_replace_current_entry,
Yeunjoo Choi3df791a2021-02-17 07:07:252599 blink::NavigationDownloadPolicy download_policy,
clamy987a3752018-05-03 17:36:262600 const std::string& method,
2601 scoped_refptr<network::ResourceRequestBody> post_body,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092602 const std::string& extra_headers,
Antonio Sartori2f763d9d2021-04-21 10:04:142603 network::mojom::SourceLocationPtr source_location,
John Delaney50425f82020-04-07 16:26:212604 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory,
Anton Bikineevf62d1bf2021-05-15 17:56:072605 const absl::optional<blink::Impression>& impression) {
Lukasz Anforowicz63f3b9432019-05-30 05:42:582606 if (is_renderer_initiated)
2607 DCHECK(initiator_origin.has_value());
2608
clamy987a3752018-05-03 17:36:262609 FrameTreeNode* node = render_frame_host->frame_tree_node();
Nasko Oskov18006bc2018-12-06 02:53:582610
Rakina Zata Amni2322f4f82022-01-24 13:24:242611 // Don't allow an entry replacement if there is no entry to replace.
2612 // http://crbug.com/457149
2613 if (GetEntryCount() == 0)
2614 should_replace_current_entry = false;
2615
clamy987a3752018-05-03 17:36:262616 // Create a NavigationEntry for the transfer, without making it the pending
2617 // entry. Subframe transfers should have a clone of the last committed entry
2618 // with a FrameNavigationEntry for the target frame. Main frame transfers
2619 // should have a new NavigationEntry.
2620 // TODO(creis): Make this unnecessary by creating (and validating) the params
2621 // directly, passing them to the destination RenderFrameHost. See
2622 // https://crbug.com/536906.
2623 std::unique_ptr<NavigationEntryImpl> entry;
Harkiran Bolariae1b5158b2021-09-16 19:03:262624 if (!render_frame_host->is_main_frame()) {
clamy987a3752018-05-03 17:36:262625 // Subframe case: create FrameNavigationEntry.
Rakina Zata Amni2322f4f82022-01-24 13:24:242626 if (GetLastCommittedEntry()) {
2627 entry = GetLastCommittedEntry()->Clone();
2628 entry->set_extra_headers(extra_headers);
2629 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2630 // Renderer-initiated navigation that target a remote frame are currently
2631 // classified as browser-initiated when this one has already navigated.
2632 // See https://crbug.com/722251.
2633 } else {
2634 // If there's no last committed entry, create an entry for about:blank
2635 // with a subframe entry for our destination.
2636 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
2637 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2638 GURL(url::kAboutBlankURL), referrer, initiator_origin,
2639 source_site_instance, page_transition, is_renderer_initiated,
2640 extra_headers, browser_context_,
2641 nullptr /* blob_url_loader_factory */));
2642 }
Rakina Zata Amniafd3c6582021-11-30 06:19:172643 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2644 // Renderer-initiated navigation that target a remote frame are currently
2645 // classified as browser-initiated when this one has already navigated.
2646 // See https://crbug.com/722251.
Nate Chapin9f169072021-06-09 19:32:372647 // The UpdatePolicy doesn't matter here. |entry| is only used as a parameter
2648 // to CreateNavigationRequestFromLoadParams(), so while kReplace might
2649 // remove child FrameNavigationEntries (e.g., if this is a cross-process
2650 // same-document navigation), they will still be present in the
2651 // committed NavigationEntry that will be referenced to construct the new
2652 // FrameNavigationEntry tree when this navigation commits.
clamy987a3752018-05-03 17:36:262653 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:082654 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582655 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Anton Bikineevf62d1bf2021-05-15 17:56:072656 absl::nullopt /* commit_origin */, referrer, initiator_origin,
Miyoung Shin5d77f72072020-10-09 15:14:202657 std::vector<GURL>(), blink::PageState(), method, -1,
Antonio Sartori78a749f2020-11-30 12:03:392658 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482659 nullptr /* subresource_web_bundle_navigation_info */,
Antonio Sartori79d549d2021-02-18 12:59:542660 nullptr /* policy_container_policies */);
clamy987a3752018-05-03 17:36:262661 } else {
2662 // Main frame case.
2663 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz641234d52019-11-07 21:07:102664 url, referrer, initiator_origin, source_site_instance, page_transition,
2665 is_renderer_initiated, extra_headers, browser_context_,
Hayato Ito303654c2021-06-30 09:07:542666 blob_url_loader_factory));
clamy987a3752018-05-03 17:36:262667 entry->root_node()->frame_entry->set_source_site_instance(
2668 static_cast<SiteInstanceImpl*>(source_site_instance));
2669 entry->root_node()->frame_entry->set_method(method);
2670 }
clamy987a3752018-05-03 17:36:262671
Camille Lamy5193caa2018-10-12 11:59:422672 bool override_user_agent = false;
clamy987a3752018-05-03 17:36:262673 if (GetLastCommittedEntry() &&
2674 GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
2675 entry->SetIsOverridingUserAgent(true);
Camille Lamy5193caa2018-10-12 11:59:422676 override_user_agent = true;
clamy987a3752018-05-03 17:36:262677 }
2678 // TODO(creis): Set user gesture and intent received timestamp on Android.
2679
2680 // We may not have successfully added the FrameNavigationEntry to |entry|
2681 // above (per https://crbug.com/608402), in which case we create it from
2682 // scratch. This works because we do not depend on |frame_entry| being inside
2683 // |entry| during NavigateToEntry. This will go away when we shortcut this
2684 // further in https://crbug.com/536906.
2685 scoped_refptr<FrameNavigationEntry> frame_entry(entry->GetFrameEntry(node));
2686 if (!frame_entry) {
Patrick Monette50e8bd82019-06-13 22:40:452687 frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Nate Chapinfbfe5af2021-06-10 17:22:082688 node->unique_name(), -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582689 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Anton Bikineevf62d1bf2021-05-15 17:56:072690 absl::nullopt /* origin */, referrer, initiator_origin,
Rakina Zata Amni3a1c0ec2021-04-15 03:35:122691 std::vector<GURL>(), blink::PageState(), method, -1,
2692 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482693 nullptr /* subresource_web_bundle_navigation_info */,
Nate Chapin63db0d12022-01-20 22:03:302694 nullptr /* policy_container_policies */,
2695 false /* protect_url_in_app_history */);
clamy987a3752018-05-03 17:36:262696 }
2697
Camille Lamy5193caa2018-10-12 11:59:422698 LoadURLParams params(url);
Chris Hamilton83272dc2021-02-23 00:24:022699 params.initiator_frame_token = base::OptionalFromPtr(initiator_frame_token);
Antonio Sartori9a82f6f32020-12-14 09:22:452700 params.initiator_process_id = initiator_process_id;
Nasko Oskov93e7c55c2018-12-19 01:59:292701 params.initiator_origin = initiator_origin;
Camille Lamy5193caa2018-10-12 11:59:422702 params.source_site_instance = source_site_instance;
2703 params.load_type = method == "POST" ? LOAD_TYPE_HTTP_POST : LOAD_TYPE_DEFAULT;
2704 params.transition_type = page_transition;
Dominic Farolino226226af2019-06-25 00:58:032705 params.frame_tree_node_id = node->frame_tree_node_id();
Camille Lamy5193caa2018-10-12 11:59:422706 params.referrer = referrer;
2707 /* params.redirect_chain: skip */
2708 params.extra_headers = extra_headers;
2709 params.is_renderer_initiated = is_renderer_initiated;
2710 params.override_user_agent = UA_OVERRIDE_INHERIT;
2711 /* params.base_url_for_data_url: skip */
2712 /* params.virtual_url_for_data_url: skip */
2713 /* params.data_url_as_string: skip */
2714 params.post_data = post_body;
2715 params.can_load_local_resources = false;
Kevin McNeee60e76b2019-11-27 20:01:582716 /* params.should_replace_current_entry: skip */
Camille Lamy5193caa2018-10-12 11:59:422717 /* params.frame_name: skip */
2718 // TODO(clamy): See if user gesture should be propagated to this function.
2719 params.has_user_gesture = false;
2720 params.should_clear_history_list = false;
2721 params.started_from_context_menu = false;
2722 /* params.navigation_ui_data: skip */
2723 /* params.input_start: skip */
Minggang Wangf59db47b2021-06-16 01:56:222724 params.was_activated = blink::mojom::WasActivatedOption::kUnknown;
Robert Ogden011a8082019-01-23 19:04:542725 /* params.reload_type: skip */
John Delaney50425f82020-04-07 16:26:212726 params.impression = impression;
Antonio Sartori6984c742021-08-26 08:03:412727 params.download_policy = std::move(download_policy);
Camille Lamy5193caa2018-10-12 11:59:422728
2729 std::unique_ptr<NavigationRequest> request =
2730 CreateNavigationRequestFromLoadParams(
Dominic Farolino226226af2019-06-25 00:58:032731 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:142732 false /* has_user_gesture */, std::move(source_location),
Antonio Sartori6984c742021-08-26 08:03:412733 ReloadType::NONE, entry.get(), frame_entry.get());
clamyea99ea12018-05-28 13:54:232734
2735 if (!request)
2736 return;
2737
Arthur Hemery948742762019-09-18 10:06:242738 // At this stage we are proceeding with this navigation. If this was renderer
2739 // initiated with user gesture, we need to make sure we clear up potential
2740 // remains of a cancelled browser initiated navigation to avoid URL spoofs.
2741 DiscardNonCommittedEntries();
2742
Lukasz Anforowicz9ee83c272020-12-01 20:14:052743 node->navigator().Navigate(std::move(request), ReloadType::NONE);
clamy987a3752018-05-03 17:36:262744}
2745
[email protected]d1198fd2012-08-13 22:50:192746void NavigationControllerImpl::SetSessionStorageNamespace(
Alex Moshchuk8015afcf2022-01-31 22:59:252747 const StoragePartitionConfig& partition_config,
[email protected]8ff00d72012-10-23 19:12:212748 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:192749 if (!session_storage_namespace)
2750 return;
2751
2752 // We can't overwrite an existing SessionStorage without violating spec.
2753 // Attempts to do so may give a tab access to another tab's session storage
2754 // so die hard on an error.
Aran Gilman37d11632019-10-08 23:07:152755 bool successful_insert =
2756 session_storage_namespace_map_
Alex Moshchuk8015afcf2022-01-31 22:59:252757 .insert(std::make_pair(partition_config,
Aaron Colwellf3b316e2021-03-11 20:17:052758 static_cast<SessionStorageNamespaceImpl*>(
2759 session_storage_namespace)))
[email protected]fdac6ade2013-07-20 01:06:302760 .second;
2761 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:192762}
2763
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572764bool NavigationControllerImpl::IsUnmodifiedBlankTab() {
Rakina Zata Amni2322f4f82022-01-24 13:24:242765 return IsInitialNavigation() &&
2766 (!GetLastCommittedEntry() ||
2767 GetLastCommittedEntry()->IsInitialEntry()) &&
Carlos Caballeroede6f8c2021-01-28 11:01:502768 !frame_tree_.has_accessed_initial_main_document();
[email protected]aa62afd2014-04-22 19:22:462769}
2770
Aran Gilman37d11632019-10-08 23:07:152771SessionStorageNamespace* NavigationControllerImpl::GetSessionStorageNamespace(
Alex Moshchuk8015afcf2022-01-31 22:59:252772 const StoragePartitionConfig& partition_config) {
[email protected]fdac6ade2013-07-20 01:06:302773 StoragePartition* partition =
Lukasz Anforowiczb9a969a2021-04-29 15:26:252774 browser_context_->GetStoragePartition(partition_config);
michaelnbacbcbd2016-02-09 00:32:032775 DOMStorageContextWrapper* context_wrapper =
2776 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
2777
2778 SessionStorageNamespaceMap::const_iterator it =
Alex Moshchuk8015afcf2022-01-31 22:59:252779 session_storage_namespace_map_.find(partition_config);
michaelnbacbcbd2016-02-09 00:32:032780 if (it != session_storage_namespace_map_.end()) {
2781 // Ensure that this namespace actually belongs to this partition.
Aran Gilman37d11632019-10-08 23:07:152782 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())
2783 ->IsFromContext(context_wrapper));
Aaron Colwellb731a0ae2021-03-19 19:14:472784
michaelnbacbcbd2016-02-09 00:32:032785 return it->second.get();
2786 }
2787
2788 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:102789 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
2790 SessionStorageNamespaceImpl::Create(context_wrapper);
2791 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
2792 session_storage_namespace.get();
Alex Moshchuk8015afcf2022-01-31 22:59:252793 session_storage_namespace_map_[partition_config] =
Daniel Murphy31bbb8b12018-02-07 21:44:102794 std::move(session_storage_namespace);
[email protected]fdac6ade2013-07-20 01:06:302795
Daniel Murphy31bbb8b12018-02-07 21:44:102796 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:302797}
2798
2799SessionStorageNamespace*
2800NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
Alex Moshchuk8015afcf2022-01-31 22:59:252801 return GetSessionStorageNamespace(
2802 StoragePartitionConfig::CreateDefault(GetBrowserContext()));
[email protected]fdac6ade2013-07-20 01:06:302803}
2804
2805const SessionStorageNamespaceMap&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572806NavigationControllerImpl::GetSessionStorageNamespaceMap() {
[email protected]fdac6ade2013-07-20 01:06:302807 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:552808}
[email protected]d202a7c2012-01-04 07:53:472809
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572810bool NavigationControllerImpl::NeedsReload() {
[email protected]71fde352011-12-29 03:29:562811 return needs_reload_;
2812}
[email protected]a26023822011-12-29 00:23:552813
[email protected]46bb5e9c2013-10-03 22:16:472814void NavigationControllerImpl::SetNeedsReload() {
Alex Moshchuk7b4f0652019-05-30 18:54:412815 SetNeedsReload(NeedsReloadType::kRequestedByClient);
2816}
2817
2818void NavigationControllerImpl::SetNeedsReload(NeedsReloadType type) {
[email protected]46bb5e9c2013-10-03 22:16:472819 needs_reload_ = true;
Alex Moshchuk7b4f0652019-05-30 18:54:412820 needs_reload_type_ = type;
jaekyunc8cefa82015-01-09 20:14:542821
2822 if (last_committed_entry_index_ != -1) {
2823 entries_[last_committed_entry_index_]->SetTransitionType(
2824 ui::PAGE_TRANSITION_RELOAD);
2825 }
[email protected]46bb5e9c2013-10-03 22:16:472826}
2827
[email protected]d202a7c2012-01-04 07:53:472828void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
Kevin McNee05164772019-09-03 17:24:572829 DCHECK_LT(index, GetEntryCount());
2830 DCHECK_NE(index, last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:312831 DiscardNonCommittedEntries();
2832
2833 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:122834 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:312835 last_committed_entry_index_--;
2836}
2837
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572838NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() {
arthursonzogni5c4c202d2017-04-25 23:41:272839 // If there is no pending_entry_, there should be no pending_entry_index_.
2840 DCHECK(pending_entry_ || pending_entry_index_ == -1);
2841
2842 // If there is a pending_entry_index_, then pending_entry_ must be the entry
Carlos IL42b416592019-10-07 23:10:362843 // at that index. An exception is while a reload of a post commit error page
2844 // is ongoing; in that case pending entry will point to the entry replaced
2845 // by the error.
arthursonzogni5c4c202d2017-04-25 23:41:272846 DCHECK(pending_entry_index_ == -1 ||
Carlos IL42b416592019-10-07 23:10:362847 pending_entry_ == GetEntryAtIndex(pending_entry_index_) ||
2848 pending_entry_ == entry_replaced_by_post_commit_error_.get());
arthursonzogni5c4c202d2017-04-25 23:41:272849
[email protected]022af742011-12-28 18:37:252850 return pending_entry_;
2851}
2852
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572853int NavigationControllerImpl::GetPendingEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:272854 // The pending entry index must always be less than the number of entries.
Rakina Zata Amni2322f4f82022-01-24 13:24:242855 // If there are no entries, it must be exactly -1.
arthursonzogni5c4c202d2017-04-25 23:41:272856 DCHECK_LT(pending_entry_index_, GetEntryCount());
Rakina Zata Amni2322f4f82022-01-24 13:24:242857 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:552858 return pending_entry_index_;
2859}
2860
avi25764702015-06-23 15:43:372861void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:572862 std::unique_ptr<NavigationEntryImpl> entry,
Carlos IL42b416592019-10-07 23:10:362863 bool replace,
Dave Tapuska87696ae2021-11-18 18:48:312864 bool was_post_commit_error,
Rakina Zata Amnia4e27222021-12-22 01:05:002865 bool in_fenced_frame_tree,
2866 LoadCommittedDetails* commit_details) {
Dave Tapuska87696ae2021-11-18 18:48:312867 // Fenced frame trees should always have `ui::PAGE_TRANSITION_AUTO_SUBFRAME`
2868 // set because:
2869 // 1) They don't influence the history of the outer page.
2870 // 2) They are always replace only navigation (there is always only one entry
2871 // in their history stack).
2872 // 3) Are not top level navigations and appear similar to iframes.
2873 // Navigations of the fenced frame might create a new NavigationEntry, which
2874 // will call this function. Non fenced frame navigations will never have
2875 // `ui::PAGE_TRANSITION_AUTO_SUBFRAME` because they won't call
2876 // InsertOrReplaceEntry.
2877 DCHECK_EQ(in_fenced_frame_tree,
2878 ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
2879 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:202880
avi5cad4912015-06-19 05:25:442881 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
2882 // need to keep continuity with the pending entry, so copy the pending entry's
2883 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
2884 // then the renderer navigated on its own, independent of the pending entry,
2885 // so don't copy anything.
2886 if (pending_entry_ && pending_entry_index_ == -1)
2887 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:202888
Rakina Zata Amnia4e27222021-12-22 01:05:002889 DiscardNonCommittedEntriesWithCommitDetails(commit_details);
[email protected]765b35502008-08-21 00:51:202890
creisee17e932015-07-17 17:56:222891 // When replacing, don't prune the forward history.
Carlos IL42b416592019-10-07 23:10:362892 if ((replace || was_post_commit_error) && entries_.size() > 0) {
Mikel Astizba9cf2fd2017-12-17 10:38:102893 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572894 entries_[last_committed_entry_index_].get(), entry.get());
Carlos IL42b416592019-10-07 23:10:362895 // If the new entry is a post-commit error page, we store the current last
2896 // committed entry to the side so that we can put it back when navigating
2897 // away from the error.
2898 if (was_post_commit_error) {
2899 DCHECK(!entry_replaced_by_post_commit_error_);
2900 entry_replaced_by_post_commit_error_ =
2901 std::move(entries_[last_committed_entry_index_]);
2902 }
dcheng36b6aec92015-12-26 06:16:362903 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:222904 return;
2905 }
[email protected]765b35502008-08-21 00:51:202906
creis37979a62015-08-04 19:48:182907 // We shouldn't see replace == true when there's no committed entries.
2908 DCHECK(!replace);
2909
Michael Thiessen9b14d512019-09-23 21:19:472910 PruneForwardEntries();
[email protected]765b35502008-08-21 00:51:202911
Shivani Sharmad8c8d652019-02-13 17:27:572912 PruneOldestSkippableEntryIfFull();
[email protected]765b35502008-08-21 00:51:202913
dcheng36b6aec92015-12-26 06:16:362914 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:202915 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:292916}
2917
Shivani Sharmad8c8d652019-02-13 17:27:572918void NavigationControllerImpl::PruneOldestSkippableEntryIfFull() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:162919 if (entries_.size() < max_entry_count())
2920 return;
2921
2922 DCHECK_EQ(max_entry_count(), entries_.size());
2923 DCHECK_GT(last_committed_entry_index_, 0);
Shivani Sharmad8c8d652019-02-13 17:27:572924 CHECK_EQ(pending_entry_index_, -1);
2925
2926 int index = 0;
Elly Fong-Jonesccc6d1f2021-06-14 18:32:422927 // Retrieve the oldest skippable entry.
2928 for (; index < GetEntryCount(); index++) {
2929 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
2930 break;
Shivani Sharmad8c8d652019-02-13 17:27:572931 }
2932
2933 // If there is no skippable entry or if it is the last committed entry then
2934 // fall back to pruning the oldest entry. It is not safe to prune the last
2935 // committed entry.
2936 if (index == GetEntryCount() || index == last_committed_entry_index_)
2937 index = 0;
2938
2939 bool should_succeed = RemoveEntryAtIndex(index);
2940 DCHECK_EQ(true, should_succeed);
2941
2942 NotifyPrunedEntries(this, index, 1);
[email protected]944822b2012-03-02 20:57:252943}
2944
clamy3cb9bea92018-07-10 12:42:022945void NavigationControllerImpl::NavigateToExistingPendingEntry(
Dave Tapuska8bfd84c2019-03-26 20:47:162946 ReloadType reload_type,
Nate Chapin45f620582021-09-30 17:45:432947 int sandboxed_source_frame_tree_node_id,
2948 bool is_browser_initiated) {
Alexander Timin3a92df72019-09-20 11:59:502949 TRACE_EVENT0("navigation",
2950 "NavigationControllerImpl::NavigateToExistingPendingEntry");
arthursonzogni5c4c202d2017-04-25 23:41:272951 DCHECK(pending_entry_);
clamy3cb9bea92018-07-10 12:42:022952 DCHECK(IsInitialNavigation() || pending_entry_index_ != -1);
Carlos IL42b416592019-10-07 23:10:362953 if (pending_entry_index_ != -1) {
2954 // The pending entry may not be in entries_ if a post-commit error page is
2955 // showing.
2956 DCHECK(pending_entry_ == entries_[pending_entry_index_].get() ||
2957 pending_entry_ == entry_replaced_by_post_commit_error_.get());
2958 }
Gyuyoung Kim107c2a02021-04-13 01:49:302959 DCHECK(!blink::IsRendererDebugURL(pending_entry_->GetURL()));
Alex Moshchuk3a4e77a2020-05-29 21:32:572960 bool is_forced_reload = needs_reload_;
[email protected]72097fd02010-01-21 23:36:012961 needs_reload_ = false;
Carlos Caballero40b0efd2021-01-26 11:55:002962 FrameTreeNode* root = frame_tree_.root();
Arthur Sonzogni620cec62018-12-13 13:08:572963 int nav_entry_id = pending_entry_->GetUniqueID();
2964
[email protected]83c2e232011-10-07 21:36:462965 // If we were navigating to a slow-to-commit page, and the user performs
2966 // a session history navigation to the last committed page, RenderViewHost
2967 // will force the throbber to start, but WebKit will essentially ignore the
2968 // navigation, and won't send a message to stop the throbber. To prevent this
2969 // from happening, we drop the navigation here and stop the slow-to-commit
2970 // page from loading (which would normally happen during the navigation).
clamy3cb9bea92018-07-10 12:42:022971 if (pending_entry_index_ == last_committed_entry_index_ &&
Lukasz Anforowicz6b75c0d2020-12-01 22:56:082972 !pending_entry_->IsRestored() &&
arthursonzogni5c4c202d2017-04-25 23:41:272973 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
Takashi Toyoshimabf549472021-07-01 07:47:202974 frame_tree_.StopLoading();
[email protected]6a13a6c2011-12-20 21:47:122975
[email protected]83c2e232011-10-07 21:36:462976 DiscardNonCommittedEntries();
2977 return;
2978 }
2979
creisce0ef3572017-01-26 17:53:082980 // Compare FrameNavigationEntries to see which frames in the tree need to be
2981 // navigated.
clamy3cb9bea92018-07-10 12:42:022982 std::vector<std::unique_ptr<NavigationRequest>> same_document_loads;
2983 std::vector<std::unique_ptr<NavigationRequest>> different_document_loads;
Nate Chapin45f620582021-09-30 17:45:432984 FindFramesToNavigate(root, reload_type, is_browser_initiated,
2985 &same_document_loads, &different_document_loads);
creis4e2ecb72015-06-20 00:46:302986
2987 if (same_document_loads.empty() && different_document_loads.empty()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:572988 // We were unable to match any frames to navigate. This can happen if a
2989 // history navigation targets a subframe that no longer exists
2990 // (https://crbug.com/705550). In this case, we need to update the current
2991 // history entry to the pending one but keep the main document loaded. We
2992 // also need to ensure that observers are informed about the updated
2993 // current history entry (e.g., for greying out back/forward buttons), and
2994 // that renderer processes update their history offsets. The easiest way
2995 // to do all that is to schedule a "redundant" same-document navigation in
2996 // the main frame.
2997 //
2998 // Note that we don't want to remove this history entry, as it might still
2999 // be valid later, since a frame that it's targeting may be recreated.
3000 //
3001 // TODO(alexmos, creis): This behavior isn't ideal, as the user would
3002 // need to repeat history navigations until finding the one that works.
3003 // Consider changing this behavior to keep looking for the first valid
3004 // history entry that finds frames to navigate.
clamy3cb9bea92018-07-10 12:42:023005 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:423006 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573007 root, pending_entry_, pending_entry_->GetFrameEntry(root),
Alex Moshchuk3a4e77a2020-05-29 21:32:573008 ReloadType::NONE /* reload_type */,
3009 true /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433010 false /* is_history_navigation_in_new_child */,
3011 is_browser_initiated);
clamy3cb9bea92018-07-10 12:42:023012 if (!navigation_request) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573013 // If this navigation cannot start, delete the pending NavigationEntry.
clamy3cb9bea92018-07-10 12:42:023014 DiscardPendingEntry(false);
3015 return;
3016 }
Alex Moshchuk3a4e77a2020-05-29 21:32:573017 same_document_loads.push_back(std::move(navigation_request));
3018
3019 // Sanity check that we never take this branch for any kinds of reloads,
3020 // as those should've queued a different-document load in the main frame.
3021 DCHECK(!is_forced_reload);
3022 DCHECK_EQ(reload_type, ReloadType::NONE);
creis4e2ecb72015-06-20 00:46:303023 }
3024
Dave Tapuska8bfd84c2019-03-26 20:47:163025 // If |sandboxed_source_frame_node_id| is valid, then track whether this
3026 // navigation affects any frame outside the frame's subtree.
3027 if (sandboxed_source_frame_tree_node_id !=
3028 FrameTreeNode::kFrameTreeNodeInvalidId) {
3029 bool navigates_inside_tree =
3030 DoesSandboxNavigationStayWithinSubtree(
3031 sandboxed_source_frame_tree_node_id, same_document_loads) &&
3032 DoesSandboxNavigationStayWithinSubtree(
3033 sandboxed_source_frame_tree_node_id, different_document_loads);
Dave Tapuska716ed3af2019-09-23 18:45:503034 // Count the navigations as web use counters so we can determine
Dave Tapuska8bfd84c2019-03-26 20:47:163035 // the number of pages that trigger this.
3036 FrameTreeNode* sandbox_source_frame_tree_node =
3037 FrameTreeNode::GloballyFindByID(sandboxed_source_frame_tree_node_id);
3038 if (sandbox_source_frame_tree_node) {
3039 GetContentClient()->browser()->LogWebFeatureForCurrentPage(
3040 sandbox_source_frame_tree_node->current_frame_host(),
3041 navigates_inside_tree
3042 ? blink::mojom::WebFeature::kSandboxBackForwardStaysWithinSubtree
3043 : blink::mojom::WebFeature::
3044 kSandboxBackForwardAffectsFramesOutsideSubtree);
3045 }
Dave Tapuska855c1e12019-08-23 20:45:523046
3047 // If the navigation occurred outside the tree discard it because
3048 // the sandboxed frame didn't have permission to navigate outside
3049 // its tree. If it is possible that the navigation is both inside and
3050 // outside the frame tree and we discard it entirely because we don't
3051 // want to end up in a history state that didn't exist before.
Dominic Farolino057440042022-01-19 18:18:143052 if (!navigates_inside_tree) {
Dave Tapuska855c1e12019-08-23 20:45:523053 DiscardPendingEntry(false);
3054 return;
3055 }
Dave Tapuska8bfd84c2019-03-26 20:47:163056 }
3057
Carlos Caballero539a421c2020-07-06 10:25:573058 // BackForwardCache:
3059 // Navigate immediately if the document is in the BackForwardCache.
3060 if (back_forward_cache_.GetEntry(nav_entry_id)) {
3061 TRACE_EVENT0("navigation", "BackForwardCache_CreateNavigationRequest");
3062 DCHECK_EQ(reload_type, ReloadType::NONE);
3063 auto navigation_request = CreateNavigationRequestFromEntry(
3064 root, pending_entry_, pending_entry_->GetFrameEntry(root),
3065 ReloadType::NONE, false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433066 false /* is_history_navigation_in_new_child */, is_browser_initiated);
Lukasz Anforowicz9ee83c272020-12-01 20:14:053067 root->navigator().Navigate(std::move(navigation_request), ReloadType::NONE);
Carlos Caballero539a421c2020-07-06 10:25:573068
3069 return;
3070 }
3071
3072 // History navigation might try to reuse a specific BrowsingInstance, already
3073 // used by a page in the cache. To avoid having two different main frames that
3074 // live in the same BrowsingInstance, evict the all pages with this
3075 // BrowsingInstance from the cache.
3076 //
3077 // For example, take the following scenario:
3078 //
3079 // A1 = Some page on a.com
3080 // A2 = Some other page on a.com
3081 // B3 = An uncacheable page on b.com
3082 //
3083 // Then the following navigations occur:
3084 // A1->A2->B3->A1
3085 // On the navigation from B3 to A1, A2 will remain in the cache (B3 doesn't
3086 // take its place) and A1 will be created in the same BrowsingInstance (and
3087 // SiteInstance), as A2.
3088 //
3089 // If we didn't do anything, both A1 and A2 would remain alive in the same
3090 // BrowsingInstance/SiteInstance, which is unsupported by
3091 // RenderFrameHostManager::CommitPending(). To avoid this conundrum, we evict
3092 // A2 from the cache.
3093 if (pending_entry_->site_instance()) {
3094 back_forward_cache_.EvictFramesInRelatedSiteInstances(
3095 pending_entry_->site_instance());
3096 }
3097
clamy3cb9bea92018-07-10 12:42:023098 // This call does not support re-entrancy. See http://crbug.com/347742.
3099 CHECK(!in_navigate_to_pending_entry_);
3100 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:303101
arthursonzogni66f711c2019-10-08 14:40:363102 // It is not possible to delete the pending NavigationEntry while navigating
3103 // to it. Grab a reference to delay potential deletion until the end of this
3104 // function.
3105 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
3106
creis4e2ecb72015-06-20 00:46:303107 // Send all the same document frame loads before the different document loads.
clamy3cb9bea92018-07-10 12:42:023108 for (auto& item : same_document_loads) {
3109 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:053110 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:303111 }
clamy3cb9bea92018-07-10 12:42:023112 for (auto& item : different_document_loads) {
3113 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:053114 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:303115 }
clamy3cb9bea92018-07-10 12:42:023116
3117 in_navigate_to_pending_entry_ = false;
creis4e2ecb72015-06-20 00:46:303118}
3119
Alex Moshchuk3a4e77a2020-05-29 21:32:573120NavigationControllerImpl::HistoryNavigationAction
3121NavigationControllerImpl::DetermineActionForHistoryNavigation(
creis4e2ecb72015-06-20 00:46:303122 FrameTreeNode* frame,
Alex Moshchuk3a4e77a2020-05-29 21:32:573123 ReloadType reload_type) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:423124 RenderFrameHostImpl* render_frame_host = frame->current_frame_host();
Sreeja Kamishettydb8e2892021-03-10 09:30:583125 // Only active and prerendered documents are allowed to navigate in their
3126 // frame.
Sreeja Kamishetty8eacabb2021-03-09 11:45:423127 if (render_frame_host->lifecycle_state() !=
Sreeja Kamishetty299329ad2021-03-25 14:06:013128 RenderFrameHostImpl::LifecycleStateImpl::kPrerendering) {
Sreeja Kamishettydb8e2892021-03-10 09:30:583129 // - If the document is in pending deletion, the browser already committed
3130 // to destroying this RenderFrameHost. See https://crbug.com/930278.
3131 // - If the document is in back-forward cache, it's not allowed to navigate
3132 // as it should remain frozen. Ignore the request and evict the document
3133 // from back-forward cache.
Sreeja Kamishetty8eacabb2021-03-09 11:45:423134 //
Sreeja Kamishettydb8e2892021-03-10 09:30:583135 // If the document is inactive, there's no need to recurse into subframes,
Sreeja Kamishetty8eacabb2021-03-09 11:45:423136 // which should all be inactive as well.
Fergal Daly1336ac642021-09-14 15:13:113137 if (frame->current_frame_host()->IsInactiveAndDisallowActivation(
3138 DisallowActivationReasonId::kDetermineActionForHistoryNavigation)) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:423139 return HistoryNavigationAction::kStopLooking;
Fergal Daly1336ac642021-09-14 15:13:113140 }
Sreeja Kamishetty8eacabb2021-03-09 11:45:423141 }
arthursonzogni03f76152019-02-12 10:35:203142
Alex Moshchuk3a4e77a2020-05-29 21:32:573143 // If there's no last committed entry, there is no previous history entry to
3144 // compare against, so fall back to a different-document load. Note that we
3145 // should only reach this case for the root frame and not descend further
3146 // into subframes.
3147 if (!GetLastCommittedEntry()) {
3148 DCHECK(frame->IsMainFrame());
3149 return HistoryNavigationAction::kDifferentDocument;
3150 }
3151
3152 // Reloads should result in a different-document load. Note that reloads may
3153 // also happen via the |needs_reload_| mechanism where the reload_type is
3154 // NONE, so detect this by comparing whether we're going to the same
3155 // entry that we're currently on. Similarly to above, only main frames
3156 // should reach this. Note that subframes support reloads, but that's done
3157 // via a different path that doesn't involve FindFramesToNavigate (see
3158 // RenderFrameHost::Reload()).
3159 if (reload_type != ReloadType::NONE ||
3160 pending_entry_index_ == last_committed_entry_index_) {
3161 DCHECK(frame->IsMainFrame());
3162 return HistoryNavigationAction::kDifferentDocument;
3163 }
3164
Alex Moshchuk47d1a4bd2020-06-01 22:15:343165 // If there is no new FrameNavigationEntry for the frame, ignore the
3166 // load. For example, this may happen when going back to an entry before a
3167 // frame was created. Suppose we commit a same-document navigation that also
3168 // results in adding a new subframe somewhere in the tree. If we go back,
3169 // the new subframe will be missing a FrameNavigationEntry in the previous
3170 // NavigationEntry, but we shouldn't delete or change what's loaded in
3171 // it.
3172 //
Alex Moshchuke65c39272020-06-03 17:55:373173 // Note that in this case, there is no need to keep looking for navigations
3174 // in subframes, which would be missing FrameNavigationEntries as well.
3175 //
Alex Moshchuk47d1a4bd2020-06-01 22:15:343176 // It's important to check this before checking |old_item| below, since both
3177 // might be null, and in that case we still shouldn't change what's loaded in
3178 // this frame. Note that scheduling any loads assumes that |new_item| is
3179 // non-null. See https://crbug.com/1088354.
3180 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3181 if (!new_item)
Alex Moshchuke65c39272020-06-03 17:55:373182 return HistoryNavigationAction::kStopLooking;
Alex Moshchuk47d1a4bd2020-06-01 22:15:343183
Alex Moshchuk3a4e77a2020-05-29 21:32:573184 // If there is no old FrameNavigationEntry, schedule a different-document
3185 // load.
3186 //
creis225a7432016-06-03 22:56:273187 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
3188 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:303189 FrameNavigationEntry* old_item =
3190 GetLastCommittedEntry()->GetFrameEntry(frame);
Alex Moshchuk3a4e77a2020-05-29 21:32:573191 if (!old_item)
3192 return HistoryNavigationAction::kDifferentDocument;
3193
Alex Moshchuk3a4e77a2020-05-29 21:32:573194 // If the new item is not in the same SiteInstance, schedule a
3195 // different-document load. Newly restored items may not have a SiteInstance
3196 // yet, in which case it will be assigned on first commit.
3197 if (new_item->site_instance() &&
3198 new_item->site_instance() != old_item->site_instance())
3199 return HistoryNavigationAction::kDifferentDocument;
3200
3201 // Schedule a different-document load if the current RenderFrameHost is not
danakj25c436d2021-04-01 16:35:313202 // live. This case can happen for Ctrl+Back or after a renderer crash. Note
3203 // that we do this even if the history navigation would not be modifying this
3204 // frame were it live.
3205 if (!frame->current_frame_host()->IsRenderFrameLive())
Alex Moshchuk3a4e77a2020-05-29 21:32:573206 return HistoryNavigationAction::kDifferentDocument;
3207
3208 if (new_item->item_sequence_number() != old_item->item_sequence_number()) {
danakj25c436d2021-04-01 16:35:313209 // Starting a navigation after a crash early-promotes the speculative
3210 // RenderFrameHost. Then we have a RenderFrameHost with no document in it
3211 // committed yet, so we can not possibly perform a same-document history
3212 // navigation. The frame would need to be reloaded with a cross-document
3213 // navigation.
3214 if (!frame->current_frame_host()->has_committed_any_navigation())
3215 return HistoryNavigationAction::kDifferentDocument;
3216
creis54131692016-08-12 18:32:253217 // Same document loads happen if the previous item has the same document
danakjb952ef12021-01-14 19:58:493218 // sequence number but different item sequence number.
3219 if (new_item->document_sequence_number() ==
3220 old_item->document_sequence_number()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573221 return HistoryNavigationAction::kSameDocument;
danakjb952ef12021-01-14 19:58:493222 }
avib48cb312016-05-05 21:35:003223
Alex Moshchuk3a4e77a2020-05-29 21:32:573224 // Otherwise, if both item and document sequence numbers differ, this
3225 // should be a different document load.
3226 return HistoryNavigationAction::kDifferentDocument;
3227 }
3228
3229 // If the item sequence numbers match, there is no need to navigate this
Alex Moshchuke65c39272020-06-03 17:55:373230 // frame. Keep looking for navigations in this frame's children.
Alex Moshchuk3a4e77a2020-05-29 21:32:573231 DCHECK_EQ(new_item->document_sequence_number(),
3232 old_item->document_sequence_number());
Alex Moshchuke65c39272020-06-03 17:55:373233 return HistoryNavigationAction::kKeepLooking;
Alex Moshchuk3a4e77a2020-05-29 21:32:573234}
3235
3236void NavigationControllerImpl::FindFramesToNavigate(
3237 FrameTreeNode* frame,
3238 ReloadType reload_type,
Nate Chapin45f620582021-09-30 17:45:433239 bool is_browser_initiated,
Alex Moshchuk3a4e77a2020-05-29 21:32:573240 std::vector<std::unique_ptr<NavigationRequest>>* same_document_loads,
3241 std::vector<std::unique_ptr<NavigationRequest>>* different_document_loads) {
3242 DCHECK(pending_entry_);
3243 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3244
3245 auto action = DetermineActionForHistoryNavigation(frame, reload_type);
3246
3247 if (action == HistoryNavigationAction::kSameDocument) {
3248 std::unique_ptr<NavigationRequest> navigation_request =
3249 CreateNavigationRequestFromEntry(
3250 frame, pending_entry_, new_item, reload_type,
3251 true /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433252 false /* is_history_navigation_in_new_child */,
3253 is_browser_initiated);
Alex Moshchuk3a4e77a2020-05-29 21:32:573254 if (navigation_request) {
3255 // Only add the request if was properly created. It's possible for the
3256 // creation to fail in certain cases, e.g. when the URL is invalid.
3257 same_document_loads->push_back(std::move(navigation_request));
creis4e2ecb72015-06-20 00:46:303258 }
Alex Moshchuk3a4e77a2020-05-29 21:32:573259 } else if (action == HistoryNavigationAction::kDifferentDocument) {
Lei Zhang96031532019-10-10 19:05:473260 std::unique_ptr<NavigationRequest> navigation_request =
3261 CreateNavigationRequestFromEntry(
3262 frame, pending_entry_, new_item, reload_type,
3263 false /* is_same_document_history_load */,
Nate Chapin45f620582021-09-30 17:45:433264 false /* is_history_navigation_in_new_child */,
3265 is_browser_initiated);
Lei Zhang96031532019-10-10 19:05:473266 if (navigation_request) {
3267 // Only add the request if was properly created. It's possible for the
3268 // creation to fail in certain cases, e.g. when the URL is invalid.
3269 different_document_loads->push_back(std::move(navigation_request));
3270 }
3271 // For a different document, the subframes will be destroyed, so there's
3272 // no need to consider them.
3273 return;
Alex Moshchuke65c39272020-06-03 17:55:373274 } else if (action == HistoryNavigationAction::kStopLooking) {
3275 return;
creis4e2ecb72015-06-20 00:46:303276 }
3277
3278 for (size_t i = 0; i < frame->child_count(); i++) {
Nate Chapin45f620582021-09-30 17:45:433279 FindFramesToNavigate(frame->child_at(i), reload_type, is_browser_initiated,
3280 same_document_loads, different_document_loads);
creis4e2ecb72015-06-20 00:46:303281 }
3282}
3283
Harkiran Bolariaba823e42021-05-21 18:30:363284base::WeakPtr<NavigationHandle> NavigationControllerImpl::NavigateWithoutEntry(
clamy21718cc22018-06-13 13:34:243285 const LoadURLParams& params) {
3286 // Find the appropriate FrameTreeNode.
3287 FrameTreeNode* node = nullptr;
3288 if (params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId ||
3289 !params.frame_name.empty()) {
3290 node = params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId
Carlos Caballero40b0efd2021-01-26 11:55:003291 ? frame_tree_.FindByID(params.frame_tree_node_id)
3292 : frame_tree_.FindByName(params.frame_name);
Hayato Ito7a80db42021-07-05 06:18:543293 DCHECK(!node || node->frame_tree() == &frame_tree_);
clamy21718cc22018-06-13 13:34:243294 }
3295
3296 // If no FrameTreeNode was specified, navigate the main frame.
3297 if (!node)
Carlos Caballero40b0efd2021-01-26 11:55:003298 node = frame_tree_.root();
clamy21718cc22018-06-13 13:34:243299
Camille Lamy5193caa2018-10-12 11:59:423300 // Compute overrides to the LoadURLParams for |override_user_agent|,
3301 // |should_replace_current_entry| and |has_user_gesture| that will be used
3302 // both in the creation of the NavigationEntry and the NavigationRequest.
3303 // Ideally, the LoadURLParams themselves would be updated, but since they are
3304 // passed as a const reference, this is not possible.
3305 // TODO(clamy): When we only create a NavigationRequest, move this to
3306 // CreateNavigationRequestFromLoadURLParams.
3307 bool override_user_agent = ShouldOverrideUserAgent(params.override_user_agent,
3308 GetLastCommittedEntry());
3309
3310 // Don't allow an entry replacement if there is no entry to replace.
3311 // http://crbug.com/457149
Hayato Ito7a80db42021-07-05 06:18:543312 //
3313 // If there is an entry, an entry replacement must happen if the current
3314 // browsing context should maintain a trivial session history.
shivanigithubf405bf0d2021-11-05 17:58:333315 bool should_replace_current_entry =
3316 (params.should_replace_current_entry ||
3317 ShouldMaintainTrivialSessionHistory(node)) &&
3318 entries_.size();
Camille Lamy5193caa2018-10-12 11:59:423319
clamy21718cc22018-06-13 13:34:243320 // Javascript URLs should not create NavigationEntries. All other navigations
3321 // do, including navigations to chrome renderer debug URLs.
clamy21718cc22018-06-13 13:34:243322 if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
Scott Violet5ae6c42e2020-10-28 02:47:373323 std::unique_ptr<NavigationEntryImpl> entry =
3324 CreateNavigationEntryFromLoadParams(node, params, override_user_agent,
3325 should_replace_current_entry,
3326 params.has_user_gesture);
clamy21718cc22018-06-13 13:34:243327 DiscardPendingEntry(false);
3328 SetPendingEntry(std::move(entry));
3329 }
3330
3331 // Renderer-debug URLs are sent to the renderer process immediately for
3332 // processing and don't need to create a NavigationRequest.
3333 // Note: this includes navigations to JavaScript URLs, which are considered
3334 // renderer-debug URLs.
3335 // Note: we intentionally leave the pending entry in place for renderer debug
3336 // URLs, unlike the cases below where we clear it if the navigation doesn't
3337 // proceed.
Gyuyoung Kim107c2a02021-04-13 01:49:303338 if (blink::IsRendererDebugURL(params.url)) {
Oleg Davydov2cc0167b2019-02-05 14:32:483339 // Renderer-debug URLs won't go through NavigationThrottlers so we have to
3340 // check them explicitly. See bug 913334.
Aaron Colwelle1908d982020-06-26 22:08:153341 if (GetContentClient()->browser()->ShouldBlockRendererDebugURL(
Oleg Davydov2cc0167b2019-02-05 14:32:483342 params.url, browser_context_)) {
3343 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363344 return nullptr;
Oleg Davydov2cc0167b2019-02-05 14:32:483345 }
3346
clamy21718cc22018-06-13 13:34:243347 HandleRendererDebugURL(node, params.url);
Harkiran Bolariaba823e42021-05-21 18:30:363348 return nullptr;
clamy21718cc22018-06-13 13:34:243349 }
3350
Antonio Sartori78a749f2020-11-30 12:03:393351 DCHECK(pending_entry_);
3352
clamy21718cc22018-06-13 13:34:243353 // Convert navigations to the current URL to a reload.
3354 // TODO(clamy): We should be using FrameTreeNode::IsMainFrame here instead of
3355 // relying on the frame tree node id from LoadURLParams. Unfortunately,
3356 // DevTools sometimes issues navigations to main frames that they do not
3357 // expect to see treated as reload, and it only works because they pass a
3358 // FrameTreeNode id in their LoadURLParams. Change this once they no longer do
3359 // that. See https://crbug.com/850926.
Robert Ogden011a8082019-01-23 19:04:543360 ReloadType reload_type = params.reload_type;
3361 if (reload_type == ReloadType::NONE &&
3362 ShouldTreatNavigationAsReload(
Fergal Daly766177d2020-07-07 07:54:043363 node, params.url, pending_entry_->GetVirtualURL(),
clamy21718cc22018-06-13 13:34:243364 params.base_url_for_data_url, params.transition_type,
clamy21718cc22018-06-13 13:34:243365 params.load_type ==
3366 NavigationController::LOAD_TYPE_HTTP_POST /* is_post */,
Hayato Ito7a80db42021-07-05 06:18:543367 should_replace_current_entry, GetLastCommittedEntry())) {
clamy21718cc22018-06-13 13:34:243368 reload_type = ReloadType::NORMAL;
Alexander Timinb70f67382020-12-10 00:03:473369 pending_entry_->set_reload_type(reload_type);
Antonio Sartori78a749f2020-11-30 12:03:393370
3371 // If this is a reload of an existing FrameNavigationEntry and we had a
3372 // policy container for it, then we should copy it into the pending entry,
3373 // so that it is copied to the navigation request in
3374 // CreateNavigationRequestFromLoadParams later.
3375 if (GetLastCommittedEntry()) {
3376 FrameNavigationEntry* previous_frame_entry =
3377 GetLastCommittedEntry()->GetFrameEntry(node);
Titouan Rigoudy6ec70402021-02-02 15:42:193378 if (previous_frame_entry &&
3379 previous_frame_entry->policy_container_policies()) {
3380 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
Antonio Sartori5d09b30f2021-03-02 09:27:163381 previous_frame_entry->policy_container_policies()->Clone());
Antonio Sartori78a749f2020-11-30 12:03:393382 }
3383 }
3384 }
3385
3386 // If this navigation is an "Enter-in-omnibox" with the initial about:blank
Rakina Zata Amniafd3c6582021-11-30 06:19:173387 // document, then we should copy the document polices from RenderFrameHost's
3388 // PolicyContainerHost. The NavigationRequest will create a new
3389 // PolicyContainerHost with the document policies from the |pending_entry_|,
3390 // and that PolicyContainerHost will be put in the final RenderFrameHost for
3391 // the navigation. This way, we ensure that we keep enforcing the right
3392 // policies on the initial empty document after the reload.
Rakina Zata Amni2322f4f82022-01-24 13:24:243393 if ((!GetLastCommittedEntry() || GetLastCommittedEntry()->IsInitialEntry()) &&
3394 params.url.IsAboutBlank()) {
Antonio Sartori78a749f2020-11-30 12:03:393395 if (node->current_frame_host() &&
3396 node->current_frame_host()->policy_container_host()) {
Titouan Rigoudy6ec70402021-02-02 15:42:193397 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
Antonio Sartori5d09b30f2021-03-02 09:27:163398 node->current_frame_host()
3399 ->policy_container_host()
3400 ->policies()
3401 .Clone());
Antonio Sartori78a749f2020-11-30 12:03:393402 }
clamy21718cc22018-06-13 13:34:243403 }
3404
3405 // navigation_ui_data should only be present for main frame navigations.
3406 DCHECK(node->IsMainFrame() || !params.navigation_ui_data);
3407
Camille Lamy5193caa2018-10-12 11:59:423408 std::unique_ptr<NavigationRequest> request =
3409 CreateNavigationRequestFromLoadParams(
3410 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:143411 params.has_user_gesture, network::mojom::SourceLocation::New(),
Antonio Sartori6984c742021-08-26 08:03:413412 reload_type, pending_entry_, pending_entry_->GetFrameEntry(node));
clamy21718cc22018-06-13 13:34:243413
3414 // If the navigation couldn't start, return immediately and discard the
3415 // pending NavigationEntry.
3416 if (!request) {
3417 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363418 return nullptr;
clamy21718cc22018-06-13 13:34:243419 }
3420
Camille Lamy5193caa2018-10-12 11:59:423421#if DCHECK_IS_ON()
3422 // Safety check that NavigationRequest and NavigationEntry match.
3423 ValidateRequestMatchesEntry(request.get(), pending_entry_);
3424#endif
3425
clamy21718cc22018-06-13 13:34:243426 // This call does not support re-entrancy. See http://crbug.com/347742.
3427 CHECK(!in_navigate_to_pending_entry_);
3428 in_navigate_to_pending_entry_ = true;
3429
arthursonzogni66f711c2019-10-08 14:40:363430 // It is not possible to delete the pending NavigationEntry while navigating
3431 // to it. Grab a reference to delay potential deletion until the end of this
3432 // function.
3433 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
3434
Harkiran Bolariaba823e42021-05-21 18:30:363435 base::WeakPtr<NavigationHandle> created_navigation_handle(
3436 request->GetWeakPtr());
Lukasz Anforowicz9ee83c272020-12-01 20:14:053437 node->navigator().Navigate(std::move(request), reload_type);
clamy21718cc22018-06-13 13:34:243438
3439 in_navigate_to_pending_entry_ = false;
Harkiran Bolariaba823e42021-05-21 18:30:363440 return created_navigation_handle;
clamy21718cc22018-06-13 13:34:243441}
3442
clamyea99ea12018-05-28 13:54:233443void NavigationControllerImpl::HandleRendererDebugURL(
3444 FrameTreeNode* frame_tree_node,
3445 const GURL& url) {
3446 if (!frame_tree_node->current_frame_host()->IsRenderFrameLive()) {
clamy21718cc22018-06-13 13:34:243447 // Any renderer-side debug URLs or javascript: URLs should be ignored if
3448 // the renderer process is not live, unless it is the initial navigation
3449 // of the tab.
clamyea99ea12018-05-28 13:54:233450 if (!IsInitialNavigation()) {
3451 DiscardNonCommittedEntries();
3452 return;
3453 }
Fergal Dalyecd3b0202020-06-25 01:57:373454 // The current frame is always a main frame. If IsInitialNavigation() is
3455 // true then there have been no navigations and any frames of this tab must
3456 // be in the same renderer process. If that has crashed then the only frame
3457 // that can be revived is the main frame.
3458 frame_tree_node->render_manager()
3459 ->InitializeMainRenderFrameForImmediateUse();
clamyea99ea12018-05-28 13:54:233460 }
3461 frame_tree_node->current_frame_host()->HandleRendererDebugURL(url);
3462}
3463
clamy21718cc22018-06-13 13:34:243464std::unique_ptr<NavigationEntryImpl>
3465NavigationControllerImpl::CreateNavigationEntryFromLoadParams(
3466 FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:423467 const LoadURLParams& params,
3468 bool override_user_agent,
3469 bool should_replace_current_entry,
3470 bool has_user_gesture) {
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393471 // Browser initiated navigations might not have a blob_url_loader_factory set
3472 // in params even if the navigation is to a blob URL. If that happens, lookup
3473 // the correct url loader factory to use here.
3474 auto blob_url_loader_factory = params.blob_url_loader_factory;
Kinuko Yasuda7d925ea22019-08-01 10:08:483475 if (!blob_url_loader_factory && params.url.SchemeIsBlob()) {
Marijn Kruisselbrink8ffda442020-09-03 18:29:473476 // Resolve the blob URL in the storage partition associated with the target
3477 // frame. This is the storage partition the URL will be loaded in, and only
3478 // URLs that can be resolved by it should be able to access its data.
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393479 blob_url_loader_factory = ChromeBlobStorageContext::URLLoaderFactoryForUrl(
Marijn Kruisselbrink8ffda442020-09-03 18:29:473480 node->current_frame_host()->GetStoragePartition(), params.url);
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393481 }
3482
clamy21718cc22018-06-13 13:34:243483 std::unique_ptr<NavigationEntryImpl> entry;
Tommy C. Li03eee77a2019-02-05 02:07:443484 // extra_headers in params are \n separated; navigation entries want \r\n.
3485 std::string extra_headers_crlf;
3486 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
clamy21718cc22018-06-13 13:34:243487
3488 // For subframes, create a pending entry with a corresponding frame entry.
3489 if (!node->IsMainFrame()) {
Rakina Zata Amni2322f4f82022-01-24 13:24:243490 if (GetLastCommittedEntry()) {
3491 entry = GetLastCommittedEntry()->Clone();
3492 } else {
3493 // If there's no last committed entry, create an entry for about:blank
3494 // with a subframe entry for our destination.
3495 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
3496 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
3497 GURL(url::kAboutBlankURL), params.referrer, params.initiator_origin,
3498 params.source_site_instance.get(), params.transition_type,
3499 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
3500 blob_url_loader_factory));
3501 }
clamy21718cc22018-06-13 13:34:243502 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:083503 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
clamy21718cc22018-06-13 13:34:243504 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
Anton Bikineevf62d1bf2021-05-15 17:56:073505 params.url, absl::nullopt, params.referrer, params.initiator_origin,
Miyoung Shin5d77f72072020-10-09 15:14:203506 params.redirect_chain, blink::PageState(), "GET", -1,
Antonio Sartori78a749f2020-11-30 12:03:393507 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:483508 nullptr /* subresource_web_bundle_navigation_info */,
Antonio Sartori78a749f2020-11-30 12:03:393509 // If in NavigateWithoutEntry we later determine that this navigation is
Charlie Reis7e2cb6d2021-01-26 01:27:163510 // a conversion of a new navigation into a reload, we will set the right
3511 // document policies there.
Titouan Rigoudy6ec70402021-02-02 15:42:193512 nullptr /* policy_container_policies */);
clamy21718cc22018-06-13 13:34:243513 } else {
3514 // Otherwise, create a pending entry for the main frame.
clamy21718cc22018-06-13 13:34:243515 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz435bcb582019-07-12 20:50:063516 params.url, params.referrer, params.initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:103517 params.source_site_instance.get(), params.transition_type,
3518 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
Hayato Ito303654c2021-06-30 09:07:543519 blob_url_loader_factory));
clamy21718cc22018-06-13 13:34:243520 entry->set_source_site_instance(
3521 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
3522 entry->SetRedirectChain(params.redirect_chain);
3523 }
3524
3525 // Set the FTN ID (only used in non-site-per-process, for tests).
3526 entry->set_frame_tree_node_id(node->frame_tree_node_id());
clamy21718cc22018-06-13 13:34:243527 entry->set_should_clear_history_list(params.should_clear_history_list);
Camille Lamy5193caa2018-10-12 11:59:423528 entry->SetIsOverridingUserAgent(override_user_agent);
3529 entry->set_has_user_gesture(has_user_gesture);
Robert Ogden011a8082019-01-23 19:04:543530 entry->set_reload_type(params.reload_type);
clamy21718cc22018-06-13 13:34:243531
clamy21718cc22018-06-13 13:34:243532 switch (params.load_type) {
3533 case LOAD_TYPE_DEFAULT:
3534 break;
3535 case LOAD_TYPE_HTTP_POST:
3536 entry->SetHasPostData(true);
3537 entry->SetPostData(params.post_data);
3538 break;
3539 case LOAD_TYPE_DATA:
3540 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
3541 entry->SetVirtualURL(params.virtual_url_for_data_url);
Xiaohan Wang7f8052e02022-01-14 18:44:283542#if BUILDFLAG(IS_ANDROID)
clamy21718cc22018-06-13 13:34:243543 entry->SetDataURLAsString(params.data_url_as_string);
3544#endif
3545 entry->SetCanLoadLocalResources(params.can_load_local_resources);
3546 break;
clamy21718cc22018-06-13 13:34:243547 }
3548
3549 // TODO(clamy): NavigationEntry is meant for information that will be kept
3550 // after the navigation ended and therefore is not appropriate for
3551 // started_from_context_menu. Move started_from_context_menu to
3552 // NavigationUIData.
3553 entry->set_started_from_context_menu(params.started_from_context_menu);
3554
3555 return entry;
3556}
3557
clamyea99ea12018-05-28 13:54:233558std::unique_ptr<NavigationRequest>
Camille Lamy5193caa2018-10-12 11:59:423559NavigationControllerImpl::CreateNavigationRequestFromLoadParams(
3560 FrameTreeNode* node,
3561 const LoadURLParams& params,
3562 bool override_user_agent,
3563 bool should_replace_current_entry,
3564 bool has_user_gesture,
Antonio Sartori2f763d9d2021-04-21 10:04:143565 network::mojom::SourceLocationPtr source_location,
Camille Lamy5193caa2018-10-12 11:59:423566 ReloadType reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573567 NavigationEntryImpl* entry,
Scott Violetcf6ea7e2021-06-09 21:09:213568 FrameNavigationEntry* frame_entry) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573569 DCHECK_EQ(-1, GetIndexOfEntry(entry));
Camille Lamyb9ed3c52018-11-19 15:34:283570 DCHECK(frame_entry);
Nasko Oskov3c2f9e252019-01-10 17:45:533571 // All renderer-initiated navigations must have an initiator_origin.
3572 DCHECK(!params.is_renderer_initiated || params.initiator_origin.has_value());
Camille Lamyff7c4822018-11-07 15:42:513573
Camille Lamy5193caa2018-10-12 11:59:423574 GURL url_to_load;
3575 GURL virtual_url;
Anton Bikineevf62d1bf2021-05-15 17:56:073576 absl::optional<url::Origin> origin_to_commit =
3577 frame_entry ? frame_entry->committed_origin() : absl::nullopt;
Nasko Oskov03912102019-01-11 00:21:323578
Camille Lamy2baa8022018-10-19 16:43:173579 // For main frames, rewrite the URL if necessary and compute the virtual URL
3580 // that should be shown in the address bar.
3581 if (node->IsMainFrame()) {
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423582 bool ignored_reverse_on_redirect = false;
Camille Lamy2baa8022018-10-19 16:43:173583 RewriteUrlForNavigation(params.url, browser_context_, &url_to_load,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423584 &virtual_url, &ignored_reverse_on_redirect);
Camille Lamy5193caa2018-10-12 11:59:423585
Camille Lamy2baa8022018-10-19 16:43:173586 // For DATA loads, override the virtual URL.
3587 if (params.load_type == LOAD_TYPE_DATA)
3588 virtual_url = params.virtual_url_for_data_url;
Camille Lamy5193caa2018-10-12 11:59:423589
Camille Lamy2baa8022018-10-19 16:43:173590 if (virtual_url.is_empty())
3591 virtual_url = url_to_load;
3592
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573593 CHECK(virtual_url == entry->GetVirtualURL());
Camille Lamyb9ed3c52018-11-19 15:34:283594
Aran Gilman249eb122019-12-02 23:32:463595 // This is a LOG and not a CHECK/DCHECK as URL rewrite has non-deterministic
3596 // behavior: it is possible for two calls to RewriteUrlForNavigation to
3597 // return different results, leading to a different URL in the
3598 // NavigationRequest and FrameEntry. This will be fixed once we remove the
3599 // pending NavigationEntry, as we'll only make one call to
3600 // RewriteUrlForNavigation.
3601 VLOG_IF(1, (url_to_load != frame_entry->url()))
3602 << "NavigationRequest and FrameEntry have different URLs: "
3603 << url_to_load << " vs " << frame_entry->url();
Camille Lamyb9ed3c52018-11-19 15:34:283604
Camille Lamy2baa8022018-10-19 16:43:173605 // TODO(clamy): In order to remove the pending NavigationEntry,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423606 // |virtual_url| and |ignored_reverse_on_redirect| should be stored in the
Camille Lamy2baa8022018-10-19 16:43:173607 // NavigationRequest.
3608 } else {
3609 url_to_load = params.url;
3610 virtual_url = params.url;
Camille Lamyf664f7622019-01-07 19:28:243611 CHECK(!frame_entry || url_to_load == frame_entry->url());
Camille Lamy2baa8022018-10-19 16:43:173612 }
Camille Lamy5193caa2018-10-12 11:59:423613
Ehsan Karamad44fc72112019-02-26 18:15:473614 if (node->render_manager()->is_attaching_inner_delegate()) {
3615 // Avoid starting any new navigations since this node is now preparing for
3616 // attaching an inner delegate.
3617 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:203618 }
Camille Lamy5193caa2018-10-12 11:59:423619
Camille Lamy5193caa2018-10-12 11:59:423620 if (!IsValidURLForNavigation(node->IsMainFrame(), virtual_url, url_to_load))
3621 return nullptr;
3622
Kunihiko Sakamoto346a74e2021-03-10 08:57:483623 if (!DoesURLMatchOriginForNavigation(
3624 url_to_load, origin_to_commit,
Wang Hui14cac7a2022-01-28 06:07:473625 frame_entry->subresource_web_bundle_navigation_info(), entry,
3626 node->IsMainFrame())) {
Nasko Oskov03912102019-01-11 00:21:323627 DCHECK(false) << " url:" << url_to_load
3628 << " origin:" << origin_to_commit.value();
3629 return nullptr;
3630 }
3631
Camille Lamy5193caa2018-10-12 11:59:423632 // This will be used to set the Navigation Timing API navigationStart
3633 // parameter for browser navigations in new tabs (intents, tabs opened through
3634 // "Open link in new tab"). If the navigation must wait on the current
3635 // RenderFrameHost to execute its BeforeUnload event, the navigation start
3636 // will be updated when the BeforeUnload ack is received.
3637 base::TimeTicks navigation_start = base::TimeTicks::Now();
3638
danakjd83d706d2020-11-25 22:11:123639 // Look for a pending commit that is to another document in this
3640 // FrameTreeNode. If one exists, then the last committed URL will not be the
3641 // current URL by the time this navigation commits.
3642 bool has_pending_cross_document_commit =
3643 node->render_manager()->HasPendingCommitForCrossDocumentNavigation();
Miyoung Shina2dd6a42021-10-07 12:19:213644 bool is_currently_error_page = node->current_frame_host()->IsErrorDocument();
danakjd83d706d2020-11-25 22:11:123645
Minggang Wangb9f3fa92021-07-01 15:30:313646 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjb952ef12021-01-14 19:58:493647 /*old_url=*/node->current_url(),
3648 /*new_url=*/url_to_load, reload_type, entry, *frame_entry,
3649 has_pending_cross_document_commit, is_currently_error_page,
3650 /*is_same_document_history_load=*/false);
Camille Lamy5193caa2018-10-12 11:59:423651
3652 // Create the NavigationParams based on |params|.
3653
Hiroki Nakagawa4ed61282021-06-18 05:37:233654 bool is_view_source_mode = entry->IsViewSourceMode();
3655 DCHECK_EQ(is_view_source_mode, virtual_url.SchemeIs(kViewSourceScheme));
Charlie Harrison8c113a32019-01-07 16:08:293656
Antonio Sartori6984c742021-08-26 08:03:413657 blink::NavigationDownloadPolicy download_policy = params.download_policy;
Hiroki Nakagawa4ed61282021-06-18 05:37:233658 // Update |download_policy| if the virtual URL is view-source.
Charlie Harrison8c113a32019-01-07 16:08:293659 if (is_view_source_mode)
Yeunjoo Choi3df791a2021-02-17 07:07:253660 download_policy.SetDisallowed(blink::NavigationDownloadType::kViewSource);
Charlie Harrison8c113a32019-01-07 16:08:293661
Minggang Wangb9f3fa92021-07-01 15:30:313662 blink::mojom::CommonNavigationParamsPtr common_params =
3663 blink::mojom::CommonNavigationParams::New(
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513664 url_to_load, params.initiator_origin,
3665 blink::mojom::Referrer::New(params.referrer.url,
3666 params.referrer.policy),
Scott Violetcf6ea7e2021-06-09 21:09:213667 params.transition_type, navigation_type, download_policy,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513668 should_replace_current_entry, params.base_url_for_data_url,
Tarun Bansalbcd62c82022-01-18 17:27:383669 navigation_start,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513670 params.load_type == LOAD_TYPE_HTTP_POST ? "POST" : "GET",
Antonio Sartori2f763d9d2021-04-21 10:04:143671 params.post_data, std::move(source_location),
arthursonzogniaf7c62c52020-02-12 10:49:413672 params.started_from_context_menu, has_user_gesture,
Antonio Sartori636adba2021-03-09 12:15:273673 false /* has_text_fragment_token */,
3674 network::mojom::CSPDisposition::CHECK, std::vector<int>(),
3675 params.href_translate,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513676 false /* is_history_navigation_in_new_child_frame */,
Nan Lind91c8152021-10-21 16:22:373677 params.input_start, network::mojom::RequestDestination::kEmpty);
Camille Lamy5193caa2018-10-12 11:59:423678
Minggang Wangb9f3fa92021-07-01 15:30:313679 blink::mojom::CommitNavigationParamsPtr commit_params =
3680 blink::mojom::CommitNavigationParams::New(
Antonio Sartori3e8de6d2021-07-26 10:28:413681 frame_entry->committed_origin(),
3682 // The correct storage key will be computed before committing the
3683 // navigation.
3684 blink::StorageKey(), network::mojom::WebSandboxFlags(),
arthursonzognid5a8d0b2021-03-11 17:36:433685 override_user_agent, params.redirect_chain,
Lucas Furukawa Gadani81e294b2019-08-29 16:26:323686 std::vector<network::mojom::URLResponseHeadPtr>(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:143687 std::vector<net::RedirectInfo>(),
3688 std::string() /* post_content_type */, common_params->url,
3689 common_params->method, params.can_load_local_resources,
Minggang Wangb9f3fa92021-07-01 15:30:313690 frame_entry->page_state().ToEncodedData(), entry->GetUniqueID(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:143691 entry->GetSubframeUniqueNames(node), true /* intended_as_new_entry */,
3692 -1 /* pending_history_list_offset */,
3693 params.should_clear_history_list ? -1 : GetLastCommittedEntryIndex(),
3694 params.should_clear_history_list ? 0 : GetEntryCount(),
3695 false /* was_discarded */, is_view_source_mode,
Minggang Wangb9f3fa92021-07-01 15:30:313696 params.should_clear_history_list,
3697 blink::mojom::NavigationTiming::New(),
Minggang Wangf59db47b2021-06-16 01:56:223698 blink::mojom::WasActivatedOption::kUnknown,
Lucas Furukawa Gadania9c45682019-07-31 22:05:143699 base::UnguessableToken::Create() /* navigation_token */,
Minggang Wang7ee0c742021-06-16 16:16:513700 std::vector<blink::mojom::PrefetchedSignedExchangeInfoPtr>(),
Xiaohan Wang7f8052e02022-01-14 18:44:283701#if BUILDFLAG(IS_ANDROID)
Lucas Furukawa Gadania9c45682019-07-31 22:05:143702 std::string(), /* data_url_as_string */
3703#endif
arthursonzogni14379782020-05-15 09:09:273704 !params.is_renderer_initiated, /* is_browser_initiated */
Tsuyoshi Horoe86d7702019-11-29 01:52:473705 GURL() /* web_bundle_physical_url */,
Charlie Hu5ffc0152019-12-06 15:59:533706 GURL() /* base_url_override_for_web_bundle */,
Yue Ru Sun128804932020-09-30 22:19:173707 ukm::kInvalidSourceId /* document_ukm_source_id */,
Jiewei Qian0406fc02020-03-09 06:02:073708 node->pending_frame_policy(),
Domenic Denicola4778c35392020-06-25 21:25:163709 std::vector<std::string>() /* force_enabled_origin_trials */,
Domenic Denicola55701ee2021-01-14 00:18:333710 false /* origin_agent_cluster */,
Maks Orlovichc66745a2020-06-30 17:40:023711 std::vector<
Shuran Huanga055ce72020-07-23 14:13:213712 network::mojom::WebClientHintsType>() /* enabled_client_hints */,
Nate Chapind1fe3612021-04-16 20:45:573713 false /* is_cross_browsing_instance */, nullptr /* old_page_info */,
3714 -1 /* http_response_code */,
Nate Chapin4e657a472022-02-06 03:38:373715 blink::mojom::AppHistoryEntryArrays::New(),
Matt Menke4e209082021-11-09 04:59:313716 std::vector<GURL>() /* early_hints_preloaded_resources */,
Clark DuVall8ee487a22021-11-10 02:25:583717 absl::nullopt /* ad_auction_components */,
3718 // This timestamp will be populated when the commit IPC is sent.
W. James MacLean81b8d01f2022-01-25 20:50:593719 base::TimeTicks() /* commit_sent */, false /* anonymous */,
3720 std::string() /* srcdoc_value */);
Xiaohan Wang7f8052e02022-01-14 18:44:283721#if BUILDFLAG(IS_ANDROID)
Camille Lamy5193caa2018-10-12 11:59:423722 if (ValidateDataURLAsString(params.data_url_as_string)) {
Lucas Furukawa Gadania9c45682019-07-31 22:05:143723 commit_params->data_url_as_string = params.data_url_as_string->data();
Camille Lamy5193caa2018-10-12 11:59:423724 }
3725#endif
3726
Lucas Furukawa Gadania9c45682019-07-31 22:05:143727 commit_params->was_activated = params.was_activated;
Camille Lamy5193caa2018-10-12 11:59:423728
3729 // A form submission may happen here if the navigation is a renderer-initiated
3730 // form submission that took the OpenURL path.
3731 scoped_refptr<network::ResourceRequestBody> request_body = params.post_data;
3732
3733 // extra_headers in params are \n separated; NavigationRequests want \r\n.
3734 std::string extra_headers_crlf;
3735 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
Yao Xiaodc5ed102019-06-04 19:19:093736
3737 auto navigation_request = NavigationRequest::CreateBrowserInitiated(
Lucas Furukawa Gadania9c45682019-07-31 22:05:143738 node, std::move(common_params), std::move(commit_params),
Takashi Toyoshimae87b7be2021-01-22 11:51:083739 !params.is_renderer_initiated, params.was_opener_suppressed,
Antonio Sartori9a82f6f32020-12-14 09:22:453740 params.initiator_frame_token.has_value()
3741 ? &(params.initiator_frame_token.value())
3742 : nullptr,
3743 params.initiator_process_id, extra_headers_crlf, frame_entry, entry,
3744 request_body,
John Delaney50425f82020-04-07 16:26:213745 params.navigation_ui_data ? params.navigation_ui_data->Clone() : nullptr,
Daniel Hosseinianf0fbfb42021-09-08 02:20:473746 params.impression, params.is_pdf);
Yao Xiaodc5ed102019-06-04 19:19:093747 navigation_request->set_from_download_cross_origin_redirect(
3748 params.from_download_cross_origin_redirect);
3749 return navigation_request;
Camille Lamy5193caa2018-10-12 11:59:423750}
3751
3752std::unique_ptr<NavigationRequest>
3753NavigationControllerImpl::CreateNavigationRequestFromEntry(
clamyea99ea12018-05-28 13:54:233754 FrameTreeNode* frame_tree_node,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573755 NavigationEntryImpl* entry,
clamyea99ea12018-05-28 13:54:233756 FrameNavigationEntry* frame_entry,
3757 ReloadType reload_type,
3758 bool is_same_document_history_load,
Nate Chapin45f620582021-09-30 17:45:433759 bool is_history_navigation_in_new_child_frame,
3760 bool is_browser_initiated) {
Alex Moshchuk47d1a4bd2020-06-01 22:15:343761 DCHECK(frame_entry);
clamyea99ea12018-05-28 13:54:233762 GURL dest_url = frame_entry->url();
Rakina Zata Amnif297a802022-01-18 03:53:433763 // We should never navigate to an existing initial NavigationEntry that is the
3764 // initial NavigationEntry for the initial empty document that hasn't been
3765 // overridden by the synchronous about:blank commit, to preserve previous
3766 // behavior where trying to reload when the main frame is on the initial empty
3767 // document won't result in a navigation.
3768 // See also https://crbug.com/1277414.
3769 DCHECK(!entry->IsInitialEntryNotForSynchronousAboutBlank());
Anton Bikineevf62d1bf2021-05-15 17:56:073770 absl::optional<url::Origin> origin_to_commit =
Nasko Oskov03912102019-01-11 00:21:323771 frame_entry->committed_origin();
3772
clamyea99ea12018-05-28 13:54:233773 Referrer dest_referrer = frame_entry->referrer();
Ryan Sturmc4da1992018-07-17 16:59:013774 if (reload_type == ReloadType::ORIGINAL_REQUEST_URL &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573775 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
clamyea99ea12018-05-28 13:54:233776 // We may have been redirected when navigating to the current URL.
3777 // Use the URL the user originally intended to visit as signaled by the
3778 // ReloadType, if it's valid and if a POST wasn't involved; the latter
Ryan Sturmc4da1992018-07-17 16:59:013779 // case avoids issues with sending data to the wrong page.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573780 dest_url = entry->GetOriginalRequestURL();
clamyea99ea12018-05-28 13:54:233781 dest_referrer = Referrer();
Nasko Oskov03912102019-01-11 00:21:323782 origin_to_commit.reset();
clamyea99ea12018-05-28 13:54:233783 }
3784
Ehsan Karamad44fc72112019-02-26 18:15:473785 if (frame_tree_node->render_manager()->is_attaching_inner_delegate()) {
3786 // Avoid starting any new navigations since this node is now preparing for
3787 // attaching an inner delegate.
3788 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:203789 }
3790
Camille Lamy5193caa2018-10-12 11:59:423791 if (!IsValidURLForNavigation(frame_tree_node->IsMainFrame(),
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573792 entry->GetVirtualURL(), dest_url)) {
clamyea99ea12018-05-28 13:54:233793 return nullptr;
3794 }
3795
Kunihiko Sakamoto346a74e2021-03-10 08:57:483796 if (!DoesURLMatchOriginForNavigation(
3797 dest_url, origin_to_commit,
Wang Hui14cac7a2022-01-28 06:07:473798 frame_entry->subresource_web_bundle_navigation_info(), entry,
3799 frame_tree_node->IsMainFrame())) {
Kunihiko Sakamoto346a74e2021-03-10 08:57:483800 DCHECK(false) << " url:" << dest_url
Wang Hui14cac7a2022-01-28 06:07:473801 << " base_url_for_data_url: " << entry->GetBaseURLForDataURL()
Kunihiko Sakamoto346a74e2021-03-10 08:57:483802 << " origin:" << origin_to_commit.value();
Nasko Oskov03912102019-01-11 00:21:323803 return nullptr;
3804 }
3805
clamyea99ea12018-05-28 13:54:233806 // This will be used to set the Navigation Timing API navigationStart
3807 // parameter for browser navigations in new tabs (intents, tabs opened through
3808 // "Open link in new tab"). If the navigation must wait on the current
3809 // RenderFrameHost to execute its BeforeUnload event, the navigation start
3810 // will be updated when the BeforeUnload ack is received.
3811 base::TimeTicks navigation_start = base::TimeTicks::Now();
clamyea99ea12018-05-28 13:54:233812
danakjd83d706d2020-11-25 22:11:123813 // Look for a pending commit that is to another document in this
3814 // FrameTreeNode. If one exists, then the last committed URL will not be the
3815 // current URL by the time this navigation commits.
3816 bool has_pending_cross_document_commit =
3817 frame_tree_node->render_manager()
3818 ->HasPendingCommitForCrossDocumentNavigation();
danakjb952ef12021-01-14 19:58:493819 bool is_currently_error_page =
Miyoung Shina2dd6a42021-10-07 12:19:213820 frame_tree_node->current_frame_host()->IsErrorDocument();
danakjd83d706d2020-11-25 22:11:123821
Minggang Wangb9f3fa92021-07-01 15:30:313822 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjd83d706d2020-11-25 22:11:123823 /*old_url=*/frame_tree_node->current_url(),
3824 /*new_url=*/dest_url, reload_type, entry, *frame_entry,
danakjb952ef12021-01-14 19:58:493825 has_pending_cross_document_commit, is_currently_error_page,
3826 is_same_document_history_load);
Camille Lamy5193caa2018-10-12 11:59:423827
3828 // A form submission may happen here if the navigation is a
3829 // back/forward/reload navigation that does a form resubmission.
3830 scoped_refptr<network::ResourceRequestBody> request_body;
3831 std::string post_content_type;
3832 if (frame_entry->method() == "POST") {
3833 request_body = frame_entry->GetPostData(&post_content_type);
3834 // Might have a LF at end.
Peter Kastingb53b81912021-04-28 19:23:303835 post_content_type = std::string(
3836 base::TrimWhitespaceASCII(post_content_type, base::TRIM_ALL));
Camille Lamy5193caa2018-10-12 11:59:423837 }
3838
3839 // Create the NavigationParams based on |entry| and |frame_entry|.
Minggang Wangb9f3fa92021-07-01 15:30:313840 blink::mojom::CommonNavigationParamsPtr common_params =
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513841 entry->ConstructCommonNavigationParams(
3842 *frame_entry, request_body, dest_url,
3843 blink::mojom::Referrer::New(dest_referrer.url, dest_referrer.policy),
Tarun Bansalbcd62c82022-01-18 17:27:383844 navigation_type, navigation_start,
Charlie Hu5ffc0152019-12-06 15:59:533845 base::TimeTicks() /* input_start */);
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513846 common_params->is_history_navigation_in_new_child_frame =
Arthur Hemerybee4a752019-05-29 10:50:553847 is_history_navigation_in_new_child_frame;
Camille Lamy5193caa2018-10-12 11:59:423848
3849 // TODO(clamy): |intended_as_new_entry| below should always be false once
3850 // Reload no longer leads to this being called for a pending NavigationEntry
3851 // of index -1.
Minggang Wangb9f3fa92021-07-01 15:30:313852 blink::mojom::CommitNavigationParamsPtr commit_params =
Lucas Furukawa Gadania9c45682019-07-31 22:05:143853 entry->ConstructCommitNavigationParams(
3854 *frame_entry, common_params->url, origin_to_commit,
3855 common_params->method, entry->GetSubframeUniqueNames(frame_tree_node),
3856 GetPendingEntryIndex() == -1 /* intended_as_new_entry */,
Charlie Hu5ffc0152019-12-06 15:59:533857 GetIndexOfEntry(entry), GetLastCommittedEntryIndex(), GetEntryCount(),
3858 frame_tree_node->pending_frame_policy());
Lucas Furukawa Gadania9c45682019-07-31 22:05:143859 commit_params->post_content_type = post_content_type;
Camille Lamy5193caa2018-10-12 11:59:423860
W. James MacLean81b8d01f2022-01-25 20:50:593861 if (common_params->url.IsAboutSrcdoc())
3862 commit_params->srcdoc_value = frame_tree_node->srcdoc_value();
clamyea99ea12018-05-28 13:54:233863 return NavigationRequest::CreateBrowserInitiated(
Lucas Furukawa Gadania9c45682019-07-31 22:05:143864 frame_tree_node, std::move(common_params), std::move(commit_params),
Nate Chapin45f620582021-09-30 17:45:433865 is_browser_initiated, false /* was_opener_suppressed */,
Takashi Toyoshimae87b7be2021-01-22 11:51:083866 nullptr /* initiator_frame_token */,
Antonio Sartori9a82f6f32020-12-14 09:22:453867 ChildProcessHost::kInvalidUniqueID /* initiator_process_id */,
3868 entry->extra_headers(), frame_entry, entry, request_body,
Daniel Hosseinianf0fbfb42021-09-08 02:20:473869 nullptr /* navigation_ui_data */, absl::nullopt /* impression */,
3870 false /* is_pdf */);
clamyea99ea12018-05-28 13:54:233871}
3872
[email protected]d202a7c2012-01-04 07:53:473873void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:213874 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:273875 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:403876
Takashi Toyoshimaea534ef22021-07-21 03:27:593877 // We need to notify the ssl_manager_ before the WebContents so the
[email protected]df1af242009-05-01 00:11:403878 // location bar will have up-to-date information about the security style
3879 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:133880 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:403881
Rakina Zata Amnidaa84f62022-02-17 00:55:313882 bool should_fire_navigation_state_changed = true;
3883#if BUILDFLAG(IS_ANDROID)
3884 if (details && details->should_stay_as_initial_entry) {
3885 // For initial NavigationEntries, only fire NavigationStateChanged() if the
3886 // embedder wants to hear about it.
3887 should_fire_navigation_state_changed =
3888 !GetContentClient()
3889 ->browser()
3890 ->ShouldIgnoreInitialNavigationEntryNavigationStateChangedForLegacySupport();
3891 }
3892#endif
3893 if (should_fire_navigation_state_changed)
3894 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
3895
[email protected]ec6c05f2013-10-23 18:41:573896 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:463897
[email protected]b0f724c2013-09-05 04:21:133898 // TODO(avi): Remove. http://crbug.com/170921
3899 NotificationDetails notification_details =
3900 Details<LoadCommittedDetails>(details);
Aran Gilman37d11632019-10-08 23:07:153901 NotificationService::current()->Notify(NOTIFICATION_NAV_ENTRY_COMMITTED,
3902 Source<NavigationController>(this),
3903 notification_details);
initial.commit09911bf2008-07-26 23:55:293904}
3905
initial.commit09911bf2008-07-26 23:55:293906// static
[email protected]d202a7c2012-01-04 07:53:473907size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:233908 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
Aran Gilman37d11632019-10-08 23:07:153909 return max_entry_count_for_testing_;
Miyoung Shin1c565c912021-03-17 12:11:213910 return blink::kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:233911}
3912
[email protected]d202a7c2012-01-04 07:53:473913void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:223914 if (is_active && needs_reload_)
3915 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:293916}
3917
[email protected]d202a7c2012-01-04 07:53:473918void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:293919 if (!needs_reload_)
3920 return;
3921
Bo Liucdfa4b12018-11-06 00:21:443922 UMA_HISTOGRAM_ENUMERATION("Navigation.LoadIfNecessaryType",
3923 needs_reload_type_);
3924
initial.commit09911bf2008-07-26 23:55:293925 // Calling Reload() results in ignoring state, and not loading.
3926 // Explicitly use NavigateToPendingEntry so that the renderer uses the
3927 // cached state.
avicc872d7242015-08-19 21:26:343928 if (pending_entry_) {
Dave Tapuska8bfd84c2019-03-26 20:47:163929 NavigateToExistingPendingEntry(ReloadType::NONE,
Nate Chapin45f620582021-09-30 17:45:433930 FrameTreeNode::kFrameTreeNodeInvalidId,
3931 true /* is_browser_initiated */);
Rakina Zata Amni2322f4f82022-01-24 13:24:243932 } else if (last_committed_entry_index_ != -1 &&
3933 !GetLastCommittedEntry()
Rakina Zata Amnif297a802022-01-18 03:53:433934 ->IsInitialEntryNotForSynchronousAboutBlank()) {
arthursonzogni5c4c202d2017-04-25 23:41:273935 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:343936 pending_entry_index_ = last_committed_entry_index_;
Dave Tapuska8bfd84c2019-03-26 20:47:163937 NavigateToExistingPendingEntry(ReloadType::NONE,
Nate Chapin45f620582021-09-30 17:45:433938 FrameTreeNode::kFrameTreeNodeInvalidId,
3939 true /* is_browser_initiated */);
avicc872d7242015-08-19 21:26:343940 } else {
Rakina Zata Amnif297a802022-01-18 03:53:433941 // We should never navigate to an existing initial NavigationEntry that is
3942 // the initial NavigationEntry for the initial empty document that hasn't
3943 // been overridden by the synchronous about:blank commit, to preserve
3944 // legacy behavior where trying to reload when the main frame is on the
3945 // initial empty document won't result in a navigation. See also
3946 // https://crbug.com/1277414. If there is something to reload, the
3947 // successful reload will clear the |needs_reload_| flag. Otherwise, just do
3948 // it here.
avicc872d7242015-08-19 21:26:343949 needs_reload_ = false;
3950 }
initial.commit09911bf2008-07-26 23:55:293951}
3952
Kevin McNeeccca6172021-10-19 17:11:143953base::WeakPtr<NavigationHandle>
3954NavigationControllerImpl::LoadPostCommitErrorPage(
Carlos IL42b416592019-10-07 23:10:363955 RenderFrameHost* render_frame_host,
3956 const GURL& url,
3957 const std::string& error_page_html,
3958 net::Error error) {
Rakina Zata Amni919b7922020-12-11 09:03:133959 RenderFrameHostImpl* rfhi =
3960 static_cast<RenderFrameHostImpl*>(render_frame_host);
Sreeja Kamishettydb8e2892021-03-10 09:30:583961
3962 // Only active documents can load post-commit error pages:
3963 // - If the document is in pending deletion, the browser already committed to
3964 // destroying this RenderFrameHost so ignore loading the error page.
3965 // - If the document is in back-forward cache, it's not allowed to navigate as
3966 // it should remain frozen. Ignore the request and evict the document from
3967 // back-forward cache.
3968 // - If the document is prerendering, it can navigate but when loading error
3969 // pages, cancel prerendering.
Fergal Daly1336ac642021-09-14 15:13:113970 if (rfhi->IsInactiveAndDisallowActivation(
3971 DisallowActivationReasonId::kLoadPostCommitErrorPage)) {
Kevin McNeeccca6172021-10-19 17:11:143972 return nullptr;
Fergal Daly1336ac642021-09-14 15:13:113973 }
Sreeja Kamishettydb8e2892021-03-10 09:30:583974
Rakina Zata Amni919b7922020-12-11 09:03:133975 FrameTreeNode* node = rfhi->frame_tree_node();
John Delaney131ad362019-08-08 21:57:413976
Minggang Wangb9f3fa92021-07-01 15:30:313977 blink::mojom::CommonNavigationParamsPtr common_params =
Minggang Wanga13c796e2021-07-02 05:54:433978 blink::CreateCommonNavigationParams();
Rakina Zata Amnid2da1542020-12-23 00:52:593979 // |url| might be empty, such as when LoadPostCommitErrorPage happens before
3980 // the frame actually committed (e.g. iframe with "src" set to a
3981 // slow-responding URL). We should rewrite the URL to about:blank in this
3982 // case, as the renderer will only think a page is an error page if it has a
3983 // non-empty unreachable URL.
Rakina Zata Amni919b7922020-12-11 09:03:133984 common_params->url = url.is_empty() ? GURL("about:blank") : url;
Minggang Wangb9f3fa92021-07-01 15:30:313985 blink::mojom::CommitNavigationParamsPtr commit_params =
Minggang Wanga13c796e2021-07-02 05:54:433986 blink::CreateCommitNavigationParams();
Antonio Sartori58591c892021-04-21 06:54:333987 commit_params->original_url = common_params->url;
John Delaney131ad362019-08-08 21:57:413988
arthursonzogni70ac7302020-05-28 08:49:053989 // Error pages have a fully permissive FramePolicy.
3990 // TODO(arthursonzogni): Consider providing the minimal capabilities to the
3991 // error pages.
3992 commit_params->frame_policy = blink::FramePolicy();
3993
John Delaney131ad362019-08-08 21:57:413994 std::unique_ptr<NavigationRequest> navigation_request =
3995 NavigationRequest::CreateBrowserInitiated(
3996 node, std::move(common_params), std::move(commit_params),
Takashi Toyoshimae87b7be2021-01-22 11:51:083997 true /* browser_initiated */, false /* was_opener_suppressed */,
Lingqi Chi82efa95e2020-12-29 05:31:193998 nullptr /* initiator_frame_token */,
Antonio Sartori9a82f6f32020-12-14 09:22:453999 ChildProcessHost::kInvalidUniqueID /* initiator_process_id */,
John Delaneyf43556d2020-05-04 23:19:064000 "" /* extra_headers */, nullptr /* frame_entry */,
4001 nullptr /* entry */, nullptr /* post_body */,
Daniel Hosseinianf0fbfb42021-09-08 02:20:474002 nullptr /* navigation_ui_data */, absl::nullopt /* impression */,
4003 false /* is_pdf */);
Carlos IL42b416592019-10-07 23:10:364004 navigation_request->set_post_commit_error_page_html(error_page_html);
John Delaney131ad362019-08-08 21:57:414005 navigation_request->set_net_error(error);
4006 node->CreatedNavigationRequest(std::move(navigation_request));
4007 DCHECK(node->navigation_request());
Kevin McNeeccca6172021-10-19 17:11:144008
4009 // Calling BeginNavigation may destroy the NavigationRequest.
4010 base::WeakPtr<NavigationRequest> created_navigation_request(
4011 node->navigation_request()->GetWeakPtr());
John Delaney131ad362019-08-08 21:57:414012 node->navigation_request()->BeginNavigation();
Kevin McNeeccca6172021-10-19 17:11:144013 return created_navigation_request;
John Delaney131ad362019-08-08 21:57:414014}
4015
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574016void NavigationControllerImpl::NotifyEntryChanged(NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:214017 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:094018 det.changed_entry = entry;
Aran Gilman37d11632019-10-08 23:07:154019 det.index = GetIndexOfEntry(NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:144020 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:294021}
4022
[email protected]d202a7c2012-01-04 07:53:474023void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:364024 RestoreType type) {
Charlie Reis23c26da2022-01-29 00:57:474025 // TODO(https://crbug.com/1287624): Don't allow an index of -1, which would
4026 // represent a no-committed-entry state.
4027 DCHECK(selected_index >= -1 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:364028 ConfigureEntriesForRestore(&entries_, type);
Charlie Reis23c26da2022-01-29 00:57:474029 // TODO(https://crbug.com/1287624): This will be pointing to the wrong entry
4030 // if `entries_` contains pre-existing entries from the NavigationController
4031 // before restore, which would not be removed and will be at the front of the
4032 // entries list, causing the index to be off by the amount of pre-existing
4033 // entries in the list. Fix this to point to the correct entry.
initial.commit09911bf2008-07-26 23:55:294034 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:294035}
[email protected]765b35502008-08-21 00:51:204036
arthursonzogni69a6a1b2019-09-17 09:23:004037void NavigationControllerImpl::DiscardNonCommittedEntries() {
Rakina Zata Amnia4e27222021-12-22 01:05:004038 DiscardNonCommittedEntriesWithCommitDetails(nullptr /* commit_details */);
4039}
4040
4041void NavigationControllerImpl::DiscardNonCommittedEntriesWithCommitDetails(
4042 LoadCommittedDetails* commit_details) {
Michael Thiessen9b14d512019-09-23 21:19:474043 // Avoid sending a notification if there is nothing to discard.
Michael Thiessenc5676d22019-09-25 22:32:104044 // TODO(mthiesse): Temporarily checking failed_pending_entry_id_ to help
4045 // diagnose https://bugs.chromium.org/p/chromium/issues/detail?id=1007570.
Carlos IL4dea8902020-05-26 15:14:294046 if (!pending_entry_ && failed_pending_entry_id_ == 0) {
Michael Thiessen9b14d512019-09-23 21:19:474047 return;
Michael Thiessenc5676d22019-09-25 22:32:104048 }
avi45a72532015-04-07 21:01:454049 DiscardPendingEntry(false);
Rakina Zata Amnidaa84f62022-02-17 00:55:314050
4051 if (!delegate_)
4052 return;
4053
4054 bool should_fire_navigation_state_changed = true;
4055#if BUILDFLAG(IS_ANDROID)
4056 if (commit_details && commit_details->should_stay_as_initial_entry) {
4057 // For initial NavigationEntries, only fire NavigationStateChanged() if the
4058 // embedder wants to hear about it.
4059 should_fire_navigation_state_changed =
4060 !GetContentClient()
4061 ->browser()
4062 ->ShouldIgnoreInitialNavigationEntryNavigationStateChangedForLegacySupport();
Rakina Zata Amniddf10502022-01-15 02:56:554063 }
Rakina Zata Amnidaa84f62022-02-17 00:55:314064#endif
4065 if (should_fire_navigation_state_changed)
4066 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]b12eb222013-09-10 00:11:484067}
4068
avi7c6f35e2015-05-08 17:52:384069int NavigationControllerImpl::GetEntryIndexWithUniqueID(
4070 int nav_entry_id) const {
4071 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
4072 if (entries_[i]->GetUniqueID() == nav_entry_id)
4073 return i;
4074 }
4075 return -1;
4076}
4077
[email protected]d202a7c2012-01-04 07:53:474078void NavigationControllerImpl::InsertEntriesFrom(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574079 NavigationControllerImpl* source,
[email protected]e1cd5452010-08-26 18:03:254080 int max_index) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:574081 DCHECK_LE(max_index, source->GetEntryCount());
Nate Chapin214a86a2021-06-21 20:35:574082 std::unique_ptr<NavigationEntryRestoreContextImpl> context =
4083 std::make_unique<NavigationEntryRestoreContextImpl>();
[email protected]e1cd5452010-08-26 18:03:254084 for (int i = 0; i < max_index; i++) {
Nate Chapin9f169072021-06-09 19:32:374085 // Normally, cloning a NavigationEntryImpl results in sharing
4086 // FrameNavigationEntries between the original and the clone. However, when
4087 // cloning from a different NavigationControllerImpl, we want to fork the
4088 // FrameNavigationEntries.
Nate Chapin9f169072021-06-09 19:32:374089 entries_.insert(entries_.begin() + i,
Nate Chapin214a86a2021-06-21 20:35:574090 source->entries_[i]->CloneWithoutSharing(context.get()));
[email protected]e1cd5452010-08-26 18:03:254091 }
arthursonzogni5c4c202d2017-04-25 23:41:274092 DCHECK(pending_entry_index_ == -1 ||
4093 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:254094}
[email protected]c5b88d82012-10-06 17:03:334095
4096void NavigationControllerImpl::SetGetTimestampCallbackForTest(
Makoto Shimazud2aa2202019-10-09 13:57:184097 const base::RepeatingCallback<base::Time()>& get_timestamp_callback) {
[email protected]c5b88d82012-10-06 17:03:334098 get_timestamp_callback_ = get_timestamp_callback;
4099}
[email protected]8ff00d72012-10-23 19:12:214100
Shivani Sharmaffb32b82019-04-09 16:58:474101// History manipulation intervention:
4102void NavigationControllerImpl::SetShouldSkipOnBackForwardUIIfNeeded(
Shivani Sharmaffb32b82019-04-09 16:58:474103 bool replace_entry,
4104 bool previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:404105 bool is_renderer_initiated,
4106 ukm::SourceId previous_page_load_ukm_source_id) {
Shivani Sharma712d5d72019-04-16 21:56:454107 // Note that for a subframe, previous_document_was_activated is true if the
4108 // gesture happened in any subframe (propagated to main frame) or in the main
4109 // frame itself.
Shivani Sharmaffb32b82019-04-09 16:58:474110 if (replace_entry || previous_document_was_activated ||
shivanigithubcceeacf2020-03-06 20:00:274111 !is_renderer_initiated) {
Shivani Sharmaffb32b82019-04-09 16:58:474112 return;
4113 }
4114 if (last_committed_entry_index_ == -1)
4115 return;
4116
Shivani Sharmac4cc8922019-04-18 03:11:174117 SetSkippableForSameDocumentEntries(last_committed_entry_index_, true);
Shivani Sharmaffb32b82019-04-09 16:58:474118
Alexander Timine3ec4192020-04-20 16:39:404119 // Log UKM with the URL we are navigating away from.
4120 ukm::builders::HistoryManipulationIntervention(
4121 previous_page_load_ukm_source_id)
4122 .Record(ukm::UkmRecorder::Get());
Shivani Sharmaffb32b82019-04-09 16:58:474123}
4124
Shivani Sharmac4cc8922019-04-18 03:11:174125void NavigationControllerImpl::SetSkippableForSameDocumentEntries(
4126 int reference_index,
4127 bool skippable) {
4128 auto* reference_entry = GetEntryAtIndex(reference_index);
4129 reference_entry->set_should_skip_on_back_forward_ui(skippable);
4130
4131 int64_t document_sequence_number =
4132 reference_entry->root_node()->frame_entry->document_sequence_number();
4133 for (int index = 0; index < GetEntryCount(); index++) {
4134 auto* entry = GetEntryAtIndex(index);
4135 if (entry->root_node()->frame_entry->document_sequence_number() ==
4136 document_sequence_number) {
4137 entry->set_should_skip_on_back_forward_ui(skippable);
4138 }
4139 }
4140}
4141
arthursonzogni66f711c2019-10-08 14:40:364142std::unique_ptr<NavigationControllerImpl::PendingEntryRef>
4143NavigationControllerImpl::ReferencePendingEntry() {
4144 DCHECK(pending_entry_);
4145 auto pending_entry_ref =
4146 std::make_unique<PendingEntryRef>(weak_factory_.GetWeakPtr());
4147 pending_entry_refs_.insert(pending_entry_ref.get());
4148 return pending_entry_ref;
4149}
4150
4151void NavigationControllerImpl::PendingEntryRefDeleted(PendingEntryRef* ref) {
4152 // Ignore refs that don't correspond to the current pending entry.
4153 auto it = pending_entry_refs_.find(ref);
4154 if (it == pending_entry_refs_.end())
4155 return;
4156 pending_entry_refs_.erase(it);
4157
4158 if (!pending_entry_refs_.empty())
4159 return;
4160
4161 // The pending entry may be deleted before the last PendingEntryRef.
4162 if (!pending_entry_)
4163 return;
4164
4165 // We usually clear the pending entry when the matching NavigationRequest
4166 // fails, so that an arbitrary URL isn't left visible above a committed page.
4167 //
4168 // However, we do preserve the pending entry in some cases, such as on the
4169 // initial navigation of an unmodified blank tab. We also allow the delegate
4170 // to say when it's safe to leave aborted URLs in the omnibox, to let the
4171 // user edit the URL and try again. This may be useful in cases that the
4172 // committed page cannot be attacker-controlled. In these cases, we still
4173 // allow the view to clear the pending entry and typed URL if the user
4174 // requests (e.g., hitting Escape with focus in the address bar).
4175 //
4176 // Do not leave the pending entry visible if it has an invalid URL, since this
4177 // might be formatted in an unexpected or unsafe way.
4178 // TODO(creis): Block navigations to invalid URLs in https://crbug.com/850824.
arthursonzogni66f711c2019-10-08 14:40:364179 bool should_preserve_entry =
4180 (pending_entry_ == GetVisibleEntry()) &&
4181 pending_entry_->GetURL().is_valid() &&
4182 (IsUnmodifiedBlankTab() || delegate_->ShouldPreserveAbortedURLs());
4183 if (should_preserve_entry)
4184 return;
4185
4186 DiscardPendingEntry(true);
4187 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
4188}
4189
Titouan Rigoudy6ec70402021-02-02 15:42:194190std::unique_ptr<PolicyContainerPolicies>
4191NavigationControllerImpl::ComputePolicyContainerPoliciesForFrameEntry(
Antonio Sartori78a749f2020-11-30 12:03:394192 RenderFrameHostImpl* rfh,
4193 bool is_same_document,
Rakina Zata Amniafd3c6582021-11-30 06:19:174194 const GURL& url) {
Antonio Sartori78a749f2020-11-30 12:03:394195 if (is_same_document) {
Rakina Zata Amni2322f4f82022-01-24 13:24:244196 // TODO(https://crbug.com/524208): Remove this nullptr check when we can
4197 // ensure we always have a FrameNavigationEntry here.
4198 if (!GetLastCommittedEntry())
4199 return nullptr;
Charlie Reis73e356242021-04-02 17:10:314200
Antonio Sartori78a749f2020-11-30 12:03:394201 FrameNavigationEntry* previous_frame_entry =
4202 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
4203
4204 // TODO(https://crbug.com/608402): Remove this nullptr check when we can
4205 // ensure we always have a FrameNavigationEntry here.
4206 if (!previous_frame_entry)
4207 return nullptr;
4208
Titouan Rigoudy6ec70402021-02-02 15:42:194209 const PolicyContainerPolicies* previous_policies =
4210 previous_frame_entry->policy_container_policies();
Antonio Sartori78a749f2020-11-30 12:03:394211
Titouan Rigoudy6ec70402021-02-02 15:42:194212 if (!previous_policies)
Antonio Sartori78a749f2020-11-30 12:03:394213 return nullptr;
4214
4215 // Make a copy of the policy container for the new FrameNavigationEntry.
Antonio Sartori5d09b30f2021-03-02 09:27:164216 return previous_policies->Clone();
Antonio Sartori78a749f2020-11-30 12:03:394217 }
4218
Antonio Sartori4f5373792021-05-31 10:56:474219 return rfh->policy_container_host()->policies().Clone();
Antonio Sartori78a749f2020-11-30 12:03:394220}
4221
Hayato Ito2c8c08d02021-06-23 03:38:434222void NavigationControllerImpl::BroadcastHistoryOffsetAndLength() {
Carlos Caballeroede6f8c2021-01-28 11:01:504223 OPTIONAL_TRACE_EVENT2(
Hayato Ito2c8c08d02021-06-23 03:38:434224 "content", "NavigationControllerImpl::BroadcastHistoryOffsetAndLength",
4225 "history_offset", GetLastCommittedEntryIndex(), "history_length",
4226 GetEntryCount());
Carlos Caballeroede6f8c2021-01-28 11:01:504227
4228 auto callback = base::BindRepeating(
4229 [](int history_offset, int history_length, RenderViewHostImpl* rvh) {
4230 if (auto& broadcast = rvh->GetAssociatedPageBroadcast()) {
4231 broadcast->SetHistoryOffsetAndLength(history_offset, history_length);
4232 }
4233 },
Hayato Ito2c8c08d02021-06-23 03:38:434234 GetLastCommittedEntryIndex(), GetEntryCount());
Carlos Caballeroede6f8c2021-01-28 11:01:504235 frame_tree_.root()->render_manager()->ExecutePageBroadcastMethod(callback);
4236}
4237
4238void NavigationControllerImpl::DidAccessInitialMainDocument() {
4239 // We may have left a failed browser-initiated navigation in the address bar
4240 // to let the user edit it and try again. Clear it now that content might
4241 // show up underneath it.
4242 if (!frame_tree_.IsLoading() && GetPendingEntry())
4243 DiscardPendingEntry(false);
4244
4245 // Update the URL display.
4246 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
4247}
4248
4249void NavigationControllerImpl::UpdateStateForFrame(
4250 RenderFrameHostImpl* rfhi,
4251 const blink::PageState& page_state) {
Alexander Timinf785f342021-03-18 00:00:564252 OPTIONAL_TRACE_EVENT1("content",
4253 "NavigationControllerImpl::UpdateStateForFrame",
4254 "render_frame_host", rfhi);
Carlos Caballeroede6f8c2021-01-28 11:01:504255 // The state update affects the last NavigationEntry associated with the given
4256 // |render_frame_host|. This may not be the last committed NavigationEntry (as
4257 // in the case of an UpdateState from a frame being swapped out). We track
4258 // which entry this is in the RenderFrameHost's nav_entry_id.
4259 NavigationEntryImpl* entry = GetEntryWithUniqueID(rfhi->nav_entry_id());
4260 if (!entry)
4261 return;
4262
4263 FrameNavigationEntry* frame_entry =
4264 entry->GetFrameEntry(rfhi->frame_tree_node());
4265 if (!frame_entry)
4266 return;
4267
4268 // The SiteInstance might not match if we do a cross-process navigation with
4269 // replacement (e.g., auto-subframe), in which case the swap out of the old
4270 // RenderFrameHost runs in the background after the old FrameNavigationEntry
4271 // has already been replaced and destroyed.
4272 if (frame_entry->site_instance() != rfhi->GetSiteInstance())
4273 return;
4274
4275 if (page_state == frame_entry->page_state())
4276 return; // Nothing to update.
4277
4278 DCHECK(page_state.IsValid()) << "Shouldn't set an empty PageState.";
4279
4280 // The document_sequence_number and item_sequence_number recorded in the
4281 // FrameNavigationEntry should not differ from the one coming with the update,
4282 // since it must come from the same document. Do not update it if a difference
4283 // is detected, as this indicates that |frame_entry| is not the correct one.
4284 blink::ExplodedPageState exploded_state;
4285 if (!blink::DecodePageState(page_state.ToEncodedData(), &exploded_state))
4286 return;
4287
4288 if (exploded_state.top.document_sequence_number !=
4289 frame_entry->document_sequence_number() ||
4290 exploded_state.top.item_sequence_number !=
4291 frame_entry->item_sequence_number()) {
4292 return;
4293 }
4294
4295 frame_entry->SetPageState(page_state);
4296 NotifyEntryChanged(entry);
4297}
4298
Minggang Wangb9f3fa92021-07-01 15:30:314299std::vector<blink::mojom::AppHistoryEntryPtr>
Nate Chapind1fe3612021-04-16 20:45:574300NavigationControllerImpl::PopulateSingleAppHistoryEntryVector(
4301 Direction direction,
4302 int entry_index,
4303 const url::Origin& pending_origin,
4304 FrameTreeNode* node,
4305 SiteInstance* site_instance,
Nate Chapin63db0d12022-01-20 22:03:304306 int64_t pending_item_sequence_number,
4307 int64_t pending_document_sequence_number) {
Minggang Wangb9f3fa92021-07-01 15:30:314308 std::vector<blink::mojom::AppHistoryEntryPtr> entries;
Rakina Zata Amni2322f4f82022-01-24 13:24:244309 if (GetLastCommittedEntry() && GetLastCommittedEntry()->IsInitialEntry()) {
Rakina Zata Amniafd3c6582021-11-30 06:19:174310 // Don't process the initial entry.
4311 DCHECK_EQ(GetEntryCount(), 1);
4312 return entries;
4313 }
Nate Chapind1fe3612021-04-16 20:45:574314 int offset = direction == Direction::kForward ? 1 : -1;
Nate Chapin63db0d12022-01-20 22:03:304315 int64_t previous_item_sequence_number = pending_item_sequence_number;
Nate Chapind1fe3612021-04-16 20:45:574316 for (int i = entry_index + offset; i >= 0 && i < GetEntryCount();
4317 i += offset) {
4318 FrameNavigationEntry* frame_entry = GetEntryAtIndex(i)->GetFrameEntry(node);
Nate Chapindedfa642022-01-28 23:59:414319 if (!frame_entry)
Nate Chapind1fe3612021-04-16 20:45:574320 break;
Nate Chapindedfa642022-01-28 23:59:414321 // An entry should only appear in appHistory entries if it is for the same
4322 // origin as the document being committed. Check the committed origin, or if
4323 // that is not available (during restore), check against the FNE's url.
4324 url::Origin frame_entry_origin =
4325 frame_entry->committed_origin().value_or(url::Origin::Resolve(
4326 frame_entry->url(),
4327 frame_entry->initiator_origin().value_or(url::Origin())));
4328 if (!pending_origin.IsSameOriginWith(frame_entry_origin))
Nate Chapind1fe3612021-04-16 20:45:574329 break;
4330 if (previous_item_sequence_number == frame_entry->item_sequence_number())
4331 continue;
4332 blink::ExplodedPageState exploded_page_state;
4333 if (blink::DecodePageState(frame_entry->page_state().ToEncodedData(),
4334 &exploded_page_state)) {
4335 blink::ExplodedFrameState frame_state = exploded_page_state.top;
Nate Chapin63db0d12022-01-20 22:03:304336
4337 // If the document represented by this FNE hid its full url from appearing
4338 // in a referrer via a "no-referrer" or "origin" referrer policy, censor
4339 // the url in appHistory as well (unless we're navigating to that
4340 // document).
4341 std::u16string url;
4342 if (pending_document_sequence_number ==
4343 frame_entry->document_sequence_number() ||
4344 !frame_entry->protect_url_in_app_history()) {
4345 url = frame_state.url_string.value_or(std::u16string());
4346 }
4347
Minggang Wangb9f3fa92021-07-01 15:30:314348 blink::mojom::AppHistoryEntryPtr entry =
4349 blink::mojom::AppHistoryEntry::New(
4350 frame_state.app_history_key.value_or(std::u16string()),
Nate Chapin63db0d12022-01-20 22:03:304351 frame_state.app_history_id.value_or(std::u16string()), url,
Nate Chapinab5c3a712021-11-18 22:17:094352 frame_state.item_sequence_number,
4353 frame_state.document_sequence_number,
4354 frame_state.app_history_state.value_or(std::u16string()));
Rakina Zata Amniafd3c6582021-11-30 06:19:174355
Nate Chapin63db0d12022-01-20 22:03:304356 DCHECK(entry->url.empty() ||
4357 pending_origin.CanBeDerivedFrom(GURL(entry->url)));
Nate Chapind1fe3612021-04-16 20:45:574358 entries.push_back(std::move(entry));
4359 previous_item_sequence_number = frame_entry->item_sequence_number();
4360 }
4361 }
4362 // If |entries| was constructed by iterating backwards from
4363 // |entry_index|, it's latest-at-the-front, but the renderer will want it
4364 // earliest-at-the-front. Reverse it.
4365 if (direction == Direction::kBack)
4366 std::reverse(entries.begin(), entries.end());
4367 return entries;
4368}
4369
Nate Chapin4e657a472022-02-06 03:38:374370blink::mojom::AppHistoryEntryArraysPtr
4371NavigationControllerImpl::GetAppHistoryEntryVectors(
Nate Chapin97d2f542022-02-18 01:34:554372 FrameTreeNode* node,
Nate Chapind1fe3612021-04-16 20:45:574373 NavigationRequest* request) {
4374 url::Origin pending_origin =
Nate Chapin97d2f542022-02-18 01:34:554375 request ? request->commit_params().origin_to_commit
4376 ? *request->commit_params().origin_to_commit
4377 : url::Origin::Create(request->common_params().url)
4378 : url::Origin::Create(node->current_url());
Nate Chapind1fe3612021-04-16 20:45:574379
Nate Chapind1fe3612021-04-16 20:45:574380 scoped_refptr<SiteInstance> site_instance =
Nate Chapin97d2f542022-02-18 01:34:554381 node->current_frame_host()->GetSiteInstance();
Nate Chapind1fe3612021-04-16 20:45:574382
4383 // NOTE: |entry_index| is an estimate of the index where this entry will
4384 // commit, but it may be wrong in corner cases (e.g., if we are at the max
4385 // entry limit, the earliest entry will be dropped). This is ok because this
4386 // algorithm only uses |entry_index| to walk the entry list as it stands right
4387 // now, and it isn't saved for anything post-commit.
4388 int entry_index = GetPendingEntryIndex();
4389 bool will_create_new_entry = false;
Nate Chapin97d2f542022-02-18 01:34:554390 if (!request ||
4391 NavigationTypeUtils::IsReload(request->common_params().navigation_type) ||
Nate Chapind1fe3612021-04-16 20:45:574392 request->common_params().should_replace_current_entry) {
4393 entry_index = GetLastCommittedEntryIndex();
4394 } else if (entry_index == -1) {
4395 will_create_new_entry = true;
4396 entry_index = GetLastCommittedEntryIndex() + 1;
4397 }
4398
4399 int64_t pending_item_sequence_number = 0;
Nate Chapin63db0d12022-01-20 22:03:304400 int64_t pending_document_sequence_number = 0;
Nate Chapind1fe3612021-04-16 20:45:574401 if (auto* pending_entry = GetPendingEntry()) {
Nate Chapin63db0d12022-01-20 22:03:304402 if (auto* frame_entry = pending_entry->GetFrameEntry(node)) {
Nate Chapind1fe3612021-04-16 20:45:574403 pending_item_sequence_number = frame_entry->item_sequence_number();
Nate Chapin63db0d12022-01-20 22:03:304404 pending_document_sequence_number =
4405 frame_entry->document_sequence_number();
4406 }
Nate Chapind1fe3612021-04-16 20:45:574407 }
4408
Nate Chapin4e657a472022-02-06 03:38:374409 auto entry_arrays = blink::mojom::AppHistoryEntryArrays::New();
4410 entry_arrays->back_entries = PopulateSingleAppHistoryEntryVector(
Nate Chapind1fe3612021-04-16 20:45:574411 Direction::kBack, entry_index, pending_origin, node, site_instance.get(),
Nate Chapin4e657a472022-02-06 03:38:374412 pending_item_sequence_number, pending_document_sequence_number);
Nate Chapind1fe3612021-04-16 20:45:574413
4414 // Don't populate forward entries if they will be truncated by a new entry.
4415 if (!will_create_new_entry) {
Nate Chapin4e657a472022-02-06 03:38:374416 entry_arrays->forward_entries = PopulateSingleAppHistoryEntryVector(
4417 Direction::kForward, entry_index, pending_origin, node,
4418 site_instance.get(), pending_item_sequence_number,
4419 pending_document_sequence_number);
Nate Chapind1fe3612021-04-16 20:45:574420 }
Nate Chapin4e657a472022-02-06 03:38:374421 return entry_arrays;
Nate Chapind1fe3612021-04-16 20:45:574422}
4423
Nate Chapinfbfe5af2021-06-10 17:22:084424NavigationControllerImpl::HistoryNavigationAction
4425NavigationControllerImpl::ShouldNavigateToEntryForAppHistoryKey(
4426 FrameNavigationEntry* current_entry,
4427 FrameNavigationEntry* target_entry,
4428 const std::string& app_history_key) {
4429 if (!target_entry || !target_entry->committed_origin())
4430 return HistoryNavigationAction::kStopLooking;
4431 if (current_entry->site_instance() != target_entry->site_instance())
4432 return HistoryNavigationAction::kStopLooking;
4433 if (!current_entry->committed_origin()->IsSameOriginWith(
4434 *target_entry->committed_origin())) {
4435 return HistoryNavigationAction::kStopLooking;
4436 }
4437
4438 // NOTE: We don't actually care between kSameDocument and
4439 // kDifferentDocument, so always use kDifferentDocument by convention.
4440 if (target_entry->app_history_key() == app_history_key)
4441 return HistoryNavigationAction::kDifferentDocument;
4442 return HistoryNavigationAction::kKeepLooking;
4443}
4444
4445void NavigationControllerImpl::NavigateToAppHistoryKey(FrameTreeNode* node,
4446 const std::string& key) {
4447 FrameNavigationEntry* current_entry =
4448 GetLastCommittedEntry()->GetFrameEntry(node);
4449 if (!current_entry)
4450 return;
4451
4452 // We want to find the nearest matching entry that is contiguously
4453 // same-instance and same-origin. Check back first, then forward.
4454 // TODO(japhet): Link spec here once it exists.
4455 for (int i = GetCurrentEntryIndex() - 1; i >= 0; i--) {
4456 auto result = ShouldNavigateToEntryForAppHistoryKey(
4457 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4458 if (result == HistoryNavigationAction::kStopLooking)
4459 break;
4460 if (result != HistoryNavigationAction::kKeepLooking) {
Nate Chapin2892b37c2021-10-08 17:33:114461 GoToIndex(i, FrameTreeNode::kFrameTreeNodeInvalidId,
4462 false /* is_browser_initiated*/);
Nate Chapinfbfe5af2021-06-10 17:22:084463 return;
4464 }
4465 }
4466 for (int i = GetCurrentEntryIndex() + 1; i < GetEntryCount(); i++) {
4467 auto result = ShouldNavigateToEntryForAppHistoryKey(
4468 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4469 if (result == HistoryNavigationAction::kStopLooking)
4470 break;
4471 if (result != HistoryNavigationAction::kKeepLooking) {
Nate Chapin2892b37c2021-10-08 17:33:114472 GoToIndex(i, FrameTreeNode::kFrameTreeNodeInvalidId,
4473 false /* is_browser_initiated*/);
Nate Chapinfbfe5af2021-06-10 17:22:084474 return;
4475 }
4476 }
4477}
4478
Nate Chapin63db0d12022-01-20 22:03:304479bool NavigationControllerImpl::ShouldProtectUrlInAppHistory(
4480 network::mojom::ReferrerPolicy referrer_policy) {
4481 return referrer_policy == network::mojom::ReferrerPolicy::kNever ||
4482 referrer_policy == network::mojom::ReferrerPolicy::kOrigin;
4483}
4484
shivanigithubf405bf0d2021-11-05 17:58:334485bool NavigationControllerImpl::ShouldMaintainTrivialSessionHistory(
4486 const FrameTreeNode* frame_tree_node) const {
4487 // TODO(https://crbug.com/1197384): We may have to add portals in addition to
4488 // prerender and fenced frames. This should be kept in sync with
Hayato Ito7a80db42021-07-05 06:18:544489 // LocalFrame version, LocalFrame::ShouldMaintainTrivialSessionHistory.
shivanigithubf405bf0d2021-11-05 17:58:334490 return frame_tree_.is_prerendering() ||
4491 frame_tree_node->IsInFencedFrameTree();
Hayato Ito7a80db42021-07-05 06:18:544492}
4493
[email protected]8ff00d72012-10-23 19:12:214494} // namespace content