blob: b7d55af8308067a5149207e3d2d4ec6cfdafcbc3 [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"
Chris Hamilton83272dc2021-02-23 00:24:0245#include "base/stl_util.h"
Peter Kastingb53b81912021-04-28 19:23:3046#include "base/strings/string_piece.h"
[email protected]348fbaac2013-06-11 06:31:5147#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0048#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3749#include "base/time/time.h"
Carlos Caballero40b0efd2021-01-26 11:55:0050#include "base/trace_event/optional_trace_event.h"
Carlos Caballeroede6f8c2021-01-28 11:01:5051#include "base/trace_event/trace_conversion_helper.h"
ssid3e765612015-01-28 04:03:4252#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5953#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2854#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1855#include "content/browser/bad_message.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3956#include "content/browser/blob_storage/chrome_blob_storage_context.h"
[email protected]825b1662012-03-12 19:07:3157#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4158#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0459#include "content/browser/dom_storage/session_storage_namespace_impl.h"
danakjc492bf82020-09-09 20:02:4460#include "content/browser/renderer_host/debug_urls.h"
61#include "content/browser/renderer_host/frame_tree.h"
Carlos Caballero40b0efd2021-01-26 11:55:0062#include "content/browser/renderer_host/frame_tree_node.h"
danakjc492bf82020-09-09 20:02:4463#include "content/browser/renderer_host/navigation_entry_impl.h"
Nate Chapin214a86a2021-06-21 20:35:5764#include "content/browser/renderer_host/navigation_entry_restore_context_impl.h"
danakjc492bf82020-09-09 20:02:4465#include "content/browser/renderer_host/navigation_request.h"
66#include "content/browser/renderer_host/navigator.h"
67#include "content/browser/renderer_host/render_frame_host_delegate.h"
Carlos Caballero40b0efd2021-01-26 11:55:0068#include "content/browser/renderer_host/render_view_host_impl.h"
[email protected]b6583592012-01-25 19:52:3369#include "content/browser/site_instance_impl.h"
Kunihiko Sakamoto346a74e2021-03-10 08:57:4870#include "content/browser/web_package/subresource_web_bundle_navigation_info.h"
Tsuyoshi Horo37493af2019-11-21 23:43:1471#include "content/browser/web_package/web_bundle_navigation_info.h"
Camille Lamy5193caa2018-10-12 11:59:4272#include "content/common/content_constants_internal.h"
Nate Chapind1fe3612021-04-16 20:45:5773#include "content/common/navigation_params_utils.h"
Nasko Oskovae49e292020-08-13 02:08:5174#include "content/common/trace_utils.h"
[email protected]ccb797302011-12-15 16:55:1175#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1976#include "content/public/browser/content_browser_client.h"
Fergal Daly1336ac642021-09-14 15:13:1177#include "content/public/browser/disallow_activation_reason.h"
[email protected]d9083482012-01-06 00:38:4678#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0079#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3880#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1681#include "content/public/browser/notification_types.h"
Lei Zhang96031532019-10-10 19:05:4782#include "content/public/browser/render_view_host.h"
[email protected]9677a3c2012-12-22 04:18:5883#include "content/public/browser/render_widget_host.h"
84#include "content/public/browser/render_widget_host_view.h"
Mikel Astizba9cf2fd2017-12-17 10:38:1085#include "content/public/browser/replaced_navigation_entry_data.h"
[email protected]4c3a23582012-08-18 08:54:3486#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1987#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3888#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1089#include "content/public/common/content_features.h"
Lei Zhang96031532019-10-10 19:05:4790#include "content/public/common/url_constants.h"
clamy7fced7b2017-11-16 19:52:4391#include "content/public/common/url_utils.h"
servolkf3955532015-05-16 00:01:5992#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3293#include "net/base/escape.h"
Arthur Sonzogni620cec62018-12-13 13:08:5794#include "net/http/http_status_code.h"
Shivani Sharma93329102019-01-24 19:44:1895#include "services/metrics/public/cpp/ukm_builders.h"
96#include "services/metrics/public/cpp/ukm_recorder.h"
Yue Ru Sun128804932020-09-30 22:19:1797#include "services/metrics/public/cpp/ukm_source_id.h"
[email protected]9677a3c2012-12-22 04:18:5898#include "skia/ext/platform_canvas.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3999#include "third_party/blink/public/common/blob/blob_utils.h"
Gyuyoung Kim107c2a02021-04-13 01:49:30100#include "third_party/blink/public/common/chrome_debug_urls.h"
Miyoung Shin1c565c912021-03-17 12:11:21101#include "third_party/blink/public/common/history/session_history_constants.h"
Blink Reformata30d4232018-04-07 15:31:06102#include "third_party/blink/public/common/mime_util/mime_util.h"
Minggang Wanga13c796e2021-07-02 05:54:43103#include "third_party/blink/public/common/navigation/navigation_params.h"
Carlos Caballeroede6f8c2021-01-28 11:01:50104#include "third_party/blink/public/common/page_state/page_state_serialization.h"
Minggang Wangb9f3fa92021-07-01 15:30:31105#include "third_party/blink/public/mojom/navigation/navigation_params.mojom.h"
Minggang Wang7ee0c742021-06-16 16:16:51106#include "third_party/blink/public/mojom/navigation/prefetched_signed_exchange_info.mojom.h"
[email protected]cca6f392014-05-28 21:32:26107#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:29108
[email protected]8ff00d72012-10-23 19:12:21109namespace content {
[email protected]e9ba4472008-09-14 15:42:43110namespace {
111
112// Invoked when entries have been pruned, or removed. For example, if the
113// current entries are [google, digg, yahoo], with the current entry google,
114// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:47115void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
Shivani Sharmab9c46de82019-02-08 16:54:50116 int index,
[email protected]c12bf1a12008-09-17 16:28:49117 int count) {
[email protected]8ff00d72012-10-23 19:12:21118 PrunedDetails details;
Shivani Sharmab9c46de82019-02-08 16:54:50119 details.index = index;
[email protected]c12bf1a12008-09-17 16:28:49120 details.count = count;
Sam McNally5c087a32017-08-25 01:46:14121 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:43122}
123
[email protected]e9ba4472008-09-14 15:42:43124// Configure all the NavigationEntries in entries for restore. This resets
125// the transition type to reload and makes sure the content state isn't empty.
126void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57127 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48128 RestoreType type) {
Lei Zhang96031532019-10-10 19:05:47129 for (auto& entry : *entries) {
[email protected]e9ba4472008-09-14 15:42:43130 // Use a transition type of reload so that we don't incorrectly increase
131 // the typed count.
Lei Zhang96031532019-10-10 19:05:47132 entry->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
133 entry->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43134 }
135}
136
[email protected]bf70edce2012-06-20 22:32:22137// Determines whether or not we should be carrying over a user agent override
138// between two NavigationEntries.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57139bool ShouldKeepOverride(NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22140 return last_entry && last_entry->GetIsOverridingUserAgent();
141}
142
Camille Lamy5193caa2018-10-12 11:59:42143// Determines whether to override user agent for a navigation.
144bool ShouldOverrideUserAgent(
145 NavigationController::UserAgentOverrideOption override_user_agent,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57146 NavigationEntry* last_committed_entry) {
Camille Lamy5193caa2018-10-12 11:59:42147 switch (override_user_agent) {
148 case NavigationController::UA_OVERRIDE_INHERIT:
149 return ShouldKeepOverride(last_committed_entry);
150 case NavigationController::UA_OVERRIDE_TRUE:
151 return true;
152 case NavigationController::UA_OVERRIDE_FALSE:
153 return false;
Camille Lamy5193caa2018-10-12 11:59:42154 }
155 NOTREACHED();
156 return false;
157}
158
Rakina Zata Amni312822d72021-06-04 16:13:37159// Returns true if this navigation should be treated as a reload. For e.g.
clamy0a656e42018-02-06 18:18:28160// navigating to the last committed url via the address bar or clicking on a
Rakina Zata Amni312822d72021-06-04 16:13:37161// link which results in a navigation to the last committed URL (but wasn't
162// converted to do a replacement navigation in the renderer), etc.
Fergal Daly766177d2020-07-07 07:54:04163// |node| is the FrameTreeNode which is navigating. |url|, |virtual_url|,
164// |base_url_for_data_url|, |transition_type| correspond to the new navigation
165// (i.e. the pending NavigationEntry). |last_committed_entry| is the last
166// navigation that committed.
167bool ShouldTreatNavigationAsReload(FrameTreeNode* node,
168 const GURL& url,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57169 const GURL& virtual_url,
170 const GURL& base_url_for_data_url,
171 ui::PageTransition transition_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57172 bool is_post,
Rakina Zata Amni312822d72021-06-04 16:13:37173 bool should_replace_current_entry,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57174 NavigationEntryImpl* last_committed_entry) {
Rakina Zata Amni312822d72021-06-04 16:13:37175 // Navigations intended to do a replacement shouldn't be converted to do a
176 // reload.
177 if (should_replace_current_entry)
clamy0a656e42018-02-06 18:18:28178 return false;
clamy0a656e42018-02-06 18:18:28179 // Only convert to reload if at least one navigation committed.
180 if (!last_committed_entry)
ananta3bdd8ae2016-12-22 17:11:55181 return false;
182
arthursonzogni7a8243682017-12-14 16:41:42183 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28184 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42185 return false;
186
ananta3bdd8ae2016-12-22 17:11:55187 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
188 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
189 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28190 bool transition_type_can_be_converted = false;
191 if (ui::PageTransitionCoreTypeIs(transition_type,
192 ui::PAGE_TRANSITION_RELOAD) &&
193 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
194 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55195 }
clamy0a656e42018-02-06 18:18:28196 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55197 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28198 transition_type_can_be_converted = true;
199 }
200 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
201 transition_type_can_be_converted = true;
202 if (!transition_type_can_be_converted)
203 return false;
204
205 // This check is required for cases like view-source:, etc. Here the URL of
206 // the navigation entry would contain the url of the page, while the virtual
207 // URL contains the full URL including the view-source prefix.
208 if (virtual_url != last_committed_entry->GetVirtualURL())
209 return false;
210
Fergal Daly766177d2020-07-07 07:54:04211 // Check that the URLs match.
212 FrameNavigationEntry* frame_entry = last_committed_entry->GetFrameEntry(node);
213 // If there's no frame entry then by definition the URLs don't match.
214 if (!frame_entry)
215 return false;
216
217 if (url != frame_entry->url())
clamy0a656e42018-02-06 18:18:28218 return false;
219
220 // This check is required for Android WebView loadDataWithBaseURL. Apps
221 // can pass in anything in the base URL and we need to ensure that these
222 // match before classifying it as a reload.
223 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
224 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
225 return false;
ananta3bdd8ae2016-12-22 17:11:55226 }
227
clamy0a656e42018-02-06 18:18:28228 // Skip entries with SSL errors.
229 if (last_committed_entry->ssl_error())
230 return false;
231
232 // Don't convert to a reload when the last navigation was a POST or the new
233 // navigation is a POST.
Fergal Daly766177d2020-07-07 07:54:04234 if (frame_entry->get_has_post_data() || is_post)
clamy0a656e42018-02-06 18:18:28235 return false;
236
237 return true;
ananta3bdd8ae2016-12-22 17:11:55238}
239
Nasko Oskov03912102019-01-11 00:21:32240bool DoesURLMatchOriginForNavigation(
241 const GURL& url,
Anton Bikineevf62d1bf2021-05-15 17:56:07242 const absl::optional<url::Origin>& origin,
Kunihiko Sakamoto346a74e2021-03-10 08:57:48243 SubresourceWebBundleNavigationInfo*
244 subresource_web_bundle_navigation_info) {
Nasko Oskov03912102019-01-11 00:21:32245 // If there is no origin supplied there is nothing to match. This can happen
246 // for navigations to a pending entry and therefore it should be allowed.
247 if (!origin)
248 return true;
249
Kunihiko Sakamoto346a74e2021-03-10 08:57:48250 if (url.SchemeIs(url::kUrnScheme) && subresource_web_bundle_navigation_info) {
251 // Urn: subframe from WebBundle has an opaque origin derived from the
252 // Bundle's origin.
253 return origin->CanBeDerivedFrom(
254 subresource_web_bundle_navigation_info->bundle_url());
255 }
256
Nasko Oskov03912102019-01-11 00:21:32257 return origin->CanBeDerivedFrom(url);
258}
259
Anton Bikineevf62d1bf2021-05-15 17:56:07260absl::optional<url::Origin> GetCommittedOriginForFrameEntry(
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12261 const mojom::DidCommitProvisionalLoadParams& params,
262 NavigationRequest* request) {
Nasko Oskov03912102019-01-11 00:21:32263 // Error pages commit in an opaque origin, yet have the real URL that resulted
264 // in an error as the |params.url|. Since successful reload of an error page
265 // should commit in the correct origin, setting the opaque origin on the
266 // FrameNavigationEntry will be incorrect.
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12267 if (request->DidEncounterError())
Anton Bikineevf62d1bf2021-05-15 17:56:07268 return absl::nullopt;
Nasko Oskov03912102019-01-11 00:21:32269
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12270 // We also currently don't save committed origins for loadDataWithBaseURL
271 // navigations (probably accidentally). Without this check, navigations to
272 // the FrameNavigationEntry might fail the DoesURLMatchOriginForNavigation()
273 // check since the origin will be based on the base URL instead of the data:
274 // URL used for the navigation.
275 // TODO(https://crbug.com/1198406): Save committed origin in
276 // FrameNavigationEntry for this case too.
Rakina Zata Amni5d2ef8aa2021-06-25 01:34:23277 if (request->IsLoadDataWithBaseURLAndHasUnreachableURL())
Anton Bikineevf62d1bf2021-05-15 17:56:07278 return absl::nullopt;
Rakina Zata Amni3a1c0ec2021-04-15 03:35:12279
Anton Bikineevf62d1bf2021-05-15 17:56:07280 return absl::make_optional(params.origin);
Nasko Oskov03912102019-01-11 00:21:32281}
282
Camille Lamy5193caa2018-10-12 11:59:42283bool IsValidURLForNavigation(bool is_main_frame,
284 const GURL& virtual_url,
285 const GURL& dest_url) {
286 // Don't attempt to navigate if the virtual URL is non-empty and invalid.
287 if (is_main_frame && !virtual_url.is_valid() && !virtual_url.is_empty()) {
288 LOG(WARNING) << "Refusing to load for invalid virtual URL: "
289 << virtual_url.possibly_invalid_spec();
290 return false;
291 }
292
293 // Don't attempt to navigate to non-empty invalid URLs.
294 if (!dest_url.is_valid() && !dest_url.is_empty()) {
295 LOG(WARNING) << "Refusing to load invalid URL: "
296 << dest_url.possibly_invalid_spec();
297 return false;
298 }
299
300 // The renderer will reject IPC messages with URLs longer than
301 // this limit, so don't attempt to navigate with a longer URL.
302 if (dest_url.spec().size() > url::kMaxURLChars) {
303 LOG(WARNING) << "Refusing to load URL as it exceeds " << url::kMaxURLChars
304 << " characters.";
305 return false;
306 }
307
Aaron Colwell33109c592020-04-21 21:31:19308 // Reject renderer debug URLs because they should have been handled before
309 // we get to this point. This check handles renderer debug URLs
310 // that are inside a view-source: URL (e.g. view-source:chrome://kill) and
311 // provides defense-in-depth if a renderer debug URL manages to get here via
312 // some other path. We want to reject the navigation here so it doesn't
313 // violate assumptions in downstream code.
Gyuyoung Kim107c2a02021-04-13 01:49:30314 if (blink::IsRendererDebugURL(dest_url)) {
Aaron Colwell33109c592020-04-21 21:31:19315 LOG(WARNING) << "Refusing to load renderer debug URL: "
316 << dest_url.possibly_invalid_spec();
317 return false;
318 }
319
Camille Lamy5193caa2018-10-12 11:59:42320 return true;
321}
322
Mikel Astizba9cf2fd2017-12-17 10:38:10323// See replaced_navigation_entry_data.h for details: this information is meant
324// to ensure |*output_entry| keeps track of its original URL (landing page in
325// case of server redirects) as it gets replaced (e.g. history.replaceState()),
326// without overwriting it later, for main frames.
327void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57328 NavigationEntryImpl* replaced_entry,
Mikel Astizba9cf2fd2017-12-17 10:38:10329 NavigationEntryImpl* output_entry) {
330 if (output_entry->GetReplacedEntryData().has_value())
331 return;
332
333 ReplacedNavigationEntryData data;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57334 data.first_committed_url = replaced_entry->GetURL();
335 data.first_timestamp = replaced_entry->GetTimestamp();
336 data.first_transition_type = replaced_entry->GetTransitionType();
Charlie Reisb55438f2019-01-08 01:54:29337 output_entry->set_replaced_entry_data(data);
Mikel Astizba9cf2fd2017-12-17 10:38:10338}
339
Minggang Wangb9f3fa92021-07-01 15:30:31340blink::mojom::NavigationType GetNavigationType(
341 const GURL& old_url,
342 const GURL& new_url,
343 ReloadType reload_type,
344 NavigationEntryImpl* entry,
345 const FrameNavigationEntry& frame_entry,
346 bool has_pending_cross_document_commit,
347 bool is_currently_error_page,
348 bool is_same_document_history_load) {
clamyea99ea12018-05-28 13:54:23349 // Reload navigations
350 switch (reload_type) {
351 case ReloadType::NORMAL:
Minggang Wangb9f3fa92021-07-01 15:30:31352 return blink::mojom::NavigationType::RELOAD;
clamyea99ea12018-05-28 13:54:23353 case ReloadType::BYPASSING_CACHE:
Minggang Wangb9f3fa92021-07-01 15:30:31354 return blink::mojom::NavigationType::RELOAD_BYPASSING_CACHE;
clamyea99ea12018-05-28 13:54:23355 case ReloadType::ORIGINAL_REQUEST_URL:
Minggang Wangb9f3fa92021-07-01 15:30:31356 return blink::mojom::NavigationType::RELOAD_ORIGINAL_REQUEST_URL;
clamyea99ea12018-05-28 13:54:23357 case ReloadType::NONE:
358 break; // Fall through to rest of function.
359 }
360
Lukasz Anforowicz6b75c0d2020-12-01 22:56:08361 if (entry->IsRestored()) {
Minggang Wangb9f3fa92021-07-01 15:30:31362 return entry->GetHasPostData()
363 ? blink::mojom::NavigationType::RESTORE_WITH_POST
364 : blink::mojom::NavigationType::RESTORE;
clamyea99ea12018-05-28 13:54:23365 }
366
danakjb952ef12021-01-14 19:58:49367 const bool can_be_same_document =
368 // A pending cross-document commit means this navigation will not occur in
369 // the current document, as that document would end up being replaced in
370 // the meantime.
371 !has_pending_cross_document_commit &&
372 // If the current document is an error page, we should always treat it as
373 // a different-document navigation so that we'll attempt to load the
374 // document we're navigating to (and not stay in the current error page).
375 !is_currently_error_page;
danakjd83d706d2020-11-25 22:11:12376
clamyea99ea12018-05-28 13:54:23377 // History navigations.
378 if (frame_entry.page_state().IsValid()) {
danakjd83d706d2020-11-25 22:11:12379 return can_be_same_document && is_same_document_history_load
Minggang Wangb9f3fa92021-07-01 15:30:31380 ? blink::mojom::NavigationType::HISTORY_SAME_DOCUMENT
381 : blink::mojom::NavigationType::HISTORY_DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23382 }
383 DCHECK(!is_same_document_history_load);
384
385 // A same-document fragment-navigation happens when the only part of the url
386 // that is modified is after the '#' character.
387 //
388 // When modifying this condition, please take a look at:
danakjd83d706d2020-11-25 22:11:12389 // FrameLoader::ShouldPerformFragmentNavigation().
clamyea99ea12018-05-28 13:54:23390 //
391 // Note: this check is only valid for navigations that are not history
392 // navigations. For instance, if the history is: 'A#bar' -> 'B' -> 'A#foo', a
393 // history navigation from 'A#foo' to 'A#bar' is not a same-document
394 // navigation, but a different-document one. This is why history navigation
395 // are classified before this check.
Lei Zhang96031532019-10-10 19:05:47396 bool is_same_doc = new_url.has_ref() && old_url.EqualsIgnoringRef(new_url) &&
397 frame_entry.method() == "GET";
danakjd83d706d2020-11-25 22:11:12398
399 // The one case where we do the wrong thing here and incorrectly choose
400 // SAME_DOCUMENT is if the navigation is browser-initiated but the document in
401 // the renderer is a frameset. All frameset navigations should be
402 // DIFFERENT_DOCUMENT, even if their URLs match. A renderer-initiated
403 // navigation would do the right thing, as it would send it to the browser and
404 // all renderer-initiated navigations are DIFFERENT_DOCUMENT (they don't get
405 // into this method). But since we can't tell that case here for browser-
406 // initiated navigations, we have to get the renderer involved. In that case
407 // the navigation would be restarted due to the renderer spending a reply of
408 // mojom::CommitResult::RestartCrossDocument.
409
410 return can_be_same_document && is_same_doc
Minggang Wangb9f3fa92021-07-01 15:30:31411 ? blink::mojom::NavigationType::SAME_DOCUMENT
412 : blink::mojom::NavigationType::DIFFERENT_DOCUMENT;
clamyea99ea12018-05-28 13:54:23413}
414
Camille Lamy5193caa2018-10-12 11:59:42415// Adjusts the original input URL if needed, to get the URL to actually load and
416// the virtual URL, which may differ.
417void RewriteUrlForNavigation(const GURL& original_url,
418 BrowserContext* browser_context,
419 GURL* url_to_load,
420 GURL* virtual_url,
421 bool* reverse_on_redirect) {
Camille Lamy5193caa2018-10-12 11:59:42422 // Allow the browser URL handler to rewrite the URL. This will, for example,
423 // remove "view-source:" from the beginning of the URL to get the URL that
424 // will actually be loaded. This real URL won't be shown to the user, just
425 // used internally.
Lukasz Anforowicz7b078792020-10-20 17:04:31426 *url_to_load = *virtual_url = original_url;
Camille Lamy5193caa2018-10-12 11:59:42427 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
428 url_to_load, browser_context, reverse_on_redirect);
429}
430
431#if DCHECK_IS_ON()
432// Helper sanity check function used in debug mode.
433void ValidateRequestMatchesEntry(NavigationRequest* request,
434 NavigationEntryImpl* entry) {
435 if (request->frame_tree_node()->IsMainFrame()) {
436 DCHECK_EQ(request->browser_initiated(), !entry->is_renderer_initiated());
437 DCHECK(ui::PageTransitionTypeIncludingQualifiersIs(
Minggang Wangb9f3fa92021-07-01 15:30:31438 ui::PageTransitionFromInt(request->common_params().transition),
439 entry->GetTransitionType()));
Camille Lamy5193caa2018-10-12 11:59:42440 }
Nasko Oskovc36327d2019-01-03 23:23:04441 DCHECK_EQ(request->commit_params().should_clear_history_list,
Camille Lamy5193caa2018-10-12 11:59:42442 entry->should_clear_history_list());
443 DCHECK_EQ(request->common_params().has_user_gesture,
444 entry->has_user_gesture());
445 DCHECK_EQ(request->common_params().base_url_for_data_url,
446 entry->GetBaseURLForDataURL());
Nasko Oskovc36327d2019-01-03 23:23:04447 DCHECK_EQ(request->commit_params().can_load_local_resources,
Camille Lamy5193caa2018-10-12 11:59:42448 entry->GetCanLoadLocalResources());
449 DCHECK_EQ(request->common_params().started_from_context_menu,
450 entry->has_started_from_context_menu());
451
452 FrameNavigationEntry* frame_entry =
453 entry->GetFrameEntry(request->frame_tree_node());
454 if (!frame_entry) {
455 NOTREACHED();
456 return;
457 }
458
Camille Lamy5193caa2018-10-12 11:59:42459 DCHECK_EQ(request->common_params().method, frame_entry->method());
460
Nasko Oskovc36327d2019-01-03 23:23:04461 size_t redirect_size = request->commit_params().redirects.size();
Camille Lamy5193caa2018-10-12 11:59:42462 if (redirect_size == frame_entry->redirect_chain().size()) {
463 for (size_t i = 0; i < redirect_size; ++i) {
Nasko Oskovc36327d2019-01-03 23:23:04464 DCHECK_EQ(request->commit_params().redirects[i],
Camille Lamy5193caa2018-10-12 11:59:42465 frame_entry->redirect_chain()[i]);
466 }
467 } else {
468 NOTREACHED();
469 }
470}
471#endif // DCHECK_IS_ON()
472
Dave Tapuska8bfd84c2019-03-26 20:47:16473// Returns whether the session history NavigationRequests in |navigations|
474// would stay within the subtree of the sandboxed iframe in
475// |sandbox_frame_tree_node_id|.
476bool DoesSandboxNavigationStayWithinSubtree(
477 int sandbox_frame_tree_node_id,
478 const std::vector<std::unique_ptr<NavigationRequest>>& navigations) {
479 for (auto& item : navigations) {
480 bool within_subtree = false;
481 // Check whether this NavigationRequest affects a frame within the
482 // sandboxed frame's subtree by walking up the tree looking for the
483 // sandboxed frame.
484 for (auto* frame = item->frame_tree_node(); frame;
Alexander Timin381e7e182020-04-28 19:04:03485 frame = FrameTreeNode::From(frame->parent())) {
Dave Tapuska8bfd84c2019-03-26 20:47:16486 if (frame->frame_tree_node_id() == sandbox_frame_tree_node_id) {
487 within_subtree = true;
488 break;
489 }
490 }
491 if (!within_subtree)
492 return false;
493 }
494 return true;
495}
496
Titouan Rigoudy6ec70402021-02-02 15:42:19497bool ShouldStorePolicyContainerPoliciesInFrameNavigationEntry(
Antonio Sartori78a749f2020-11-30 12:03:39498 const NavigationRequest* request) {
499 // For local schemes we need to store the policy container in the
500 // FrameNavigationEntry, so that we can reload it in case of history
501 // navigation.
502 //
503 // TODO(https://crbug.com/1146361 and https://crbug.com/1146362): blob: and
504 // filesystem: should be removed from this list when we have properly
505 // implemented storing their policy container in the respective store.
506 return (request->common_params().url.SchemeIs(url::kAboutScheme) ||
507 request->common_params().url.SchemeIs(url::kDataScheme) ||
508 request->common_params().url.SchemeIsBlob() ||
509 request->common_params().url.SchemeIsFileSystem());
510}
511
[email protected]e9ba4472008-09-14 15:42:43512} // namespace
513
arthursonzogni66f711c2019-10-08 14:40:36514// NavigationControllerImpl::PendingEntryRef------------------------------------
515
516NavigationControllerImpl::PendingEntryRef::PendingEntryRef(
517 base::WeakPtr<NavigationControllerImpl> controller)
518 : controller_(controller) {}
519
520NavigationControllerImpl::PendingEntryRef::~PendingEntryRef() {
521 if (!controller_) // Can be null with interstitials.
522 return;
523
524 controller_->PendingEntryRefDeleted(this);
525}
526
[email protected]d202a7c2012-01-04 07:53:47527// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29528
[email protected]23a918b2014-07-15 09:51:36529const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23530
[email protected]765b35502008-08-21 00:51:20531// static
[email protected]d202a7c2012-01-04 07:53:47532size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23533 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20534
[email protected]e6fec472013-05-14 05:29:02535// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20536// when testing.
537static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29538
[email protected]71fde352011-12-29 03:29:56539// static
dcheng9bfa5162016-04-09 01:00:57540std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
541 const GURL& url,
Lukasz Anforowicz641234d52019-11-07 21:07:10542 Referrer referrer,
Anton Bikineevf62d1bf2021-05-15 17:56:07543 absl::optional<url::Origin> initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:10544 ui::PageTransition transition,
545 bool is_renderer_initiated,
546 const std::string& extra_headers,
547 BrowserContext* browser_context,
548 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
549 return NavigationControllerImpl::CreateNavigationEntry(
550 url, referrer, std::move(initiator_origin),
551 nullptr /* source_site_instance */, transition, is_renderer_initiated,
Hayato Ito303654c2021-06-30 09:07:54552 extra_headers, browser_context, std::move(blob_url_loader_factory));
Lukasz Anforowicz641234d52019-11-07 21:07:10553}
554
555// static
556std::unique_ptr<NavigationEntryImpl>
557NavigationControllerImpl::CreateNavigationEntry(
558 const GURL& url,
559 Referrer referrer,
Anton Bikineevf62d1bf2021-05-15 17:56:07560 absl::optional<url::Origin> initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:10561 SiteInstance* source_site_instance,
dcheng9bfa5162016-04-09 01:00:57562 ui::PageTransition transition,
563 bool is_renderer_initiated,
564 const std::string& extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:09565 BrowserContext* browser_context,
Hayato Ito303654c2021-06-30 09:07:54566 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
Camille Lamy5193caa2018-10-12 11:59:42567 GURL url_to_load;
568 GURL virtual_url;
[email protected]71fde352011-12-29 03:29:56569 bool reverse_on_redirect = false;
Camille Lamy5193caa2018-10-12 11:59:42570 RewriteUrlForNavigation(url, browser_context, &url_to_load, &virtual_url,
571 &reverse_on_redirect);
[email protected]71fde352011-12-29 03:29:56572
Lukasz Anforowicz641234d52019-11-07 21:07:10573 // Let the NTP override the navigation params and pretend that this is a
574 // browser-initiated, bookmark-like navigation.
575 GetContentClient()->browser()->OverrideNavigationParams(
Scott Violetcf6ea7e2021-06-09 21:09:21576 source_site_instance, &transition, &is_renderer_initiated, &referrer,
577 &initiator_origin);
Lukasz Anforowicz641234d52019-11-07 21:07:10578
Patrick Monettef507e982019-06-19 20:18:06579 auto entry = std::make_unique<NavigationEntryImpl>(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28580 nullptr, // The site instance for tabs is sent on navigation
581 // (WebContents::GetSiteInstance).
Jan Wilken Dörrieaace0cfef2021-03-11 22:01:58582 url_to_load, referrer, initiator_origin, std::u16string(), transition,
Camille Lamy5193caa2018-10-12 11:59:42583 is_renderer_initiated, blob_url_loader_factory);
584 entry->SetVirtualURL(virtual_url);
585 entry->set_user_typed_url(virtual_url);
[email protected]71fde352011-12-29 03:29:56586 entry->set_update_virtual_url_with_url(reverse_on_redirect);
587 entry->set_extra_headers(extra_headers);
Patrick Monettef507e982019-06-19 20:18:06588 return entry;
[email protected]71fde352011-12-29 03:29:56589}
590
[email protected]cdcb1dee2012-01-04 00:46:20591// static
592void NavigationController::DisablePromptOnRepost() {
593 g_check_for_repost = false;
594}
595
[email protected]c5b88d82012-10-06 17:03:33596base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
597 base::Time t) {
598 // If |t| is between the water marks, we're in a run of duplicates
599 // or just getting out of it, so increase the high-water mark to get
600 // a time that probably hasn't been used before and return it.
601 if (low_water_mark_ <= t && t <= high_water_mark_) {
602 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
603 return high_water_mark_;
604 }
605
606 // Otherwise, we're clear of the last duplicate run, so reset the
607 // water marks.
608 low_water_mark_ = high_water_mark_ = t;
609 return t;
610}
611
ckitagawa0faa5e42020-06-17 17:30:54612NavigationControllerImpl::ScopedShowRepostDialogForTesting::
613 ScopedShowRepostDialogForTesting()
614 : was_disallowed_(g_check_for_repost) {
615 g_check_for_repost = true;
616}
617
618NavigationControllerImpl::ScopedShowRepostDialogForTesting::
619 ~ScopedShowRepostDialogForTesting() {
620 g_check_for_repost = was_disallowed_;
621}
622
[email protected]d202a7c2012-01-04 07:53:47623NavigationControllerImpl::NavigationControllerImpl(
Carlos Caballero40b0efd2021-01-26 11:55:00624 BrowserContext* browser_context,
625 FrameTree& frame_tree,
626 NavigationControllerDelegate* delegate)
627 : frame_tree_(frame_tree),
628 browser_context_(browser_context),
[email protected]ec6c05f2013-10-23 18:41:57629 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22630 ssl_manager_(this),
Lei Zhang96031532019-10-10 19:05:47631 get_timestamp_callback_(base::BindRepeating(&base::Time::Now)) {
[email protected]3d7474ff2011-07-27 17:47:37632 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29633}
634
[email protected]d202a7c2012-01-04 07:53:47635NavigationControllerImpl::~NavigationControllerImpl() {
arthursonzogni69a6a1b2019-09-17 09:23:00636 // The NavigationControllerImpl might be called inside its delegate
637 // destructor. Calling it is not valid anymore.
638 delegate_ = nullptr;
639 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:29640}
641
Matt Falkenhagen548ed1562021-07-06 01:38:26642WebContents* NavigationControllerImpl::DeprecatedGetWebContents() {
643 return delegate_->DeprecatedGetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32644}
645
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57646BrowserContext* NavigationControllerImpl::GetBrowserContext() {
[email protected]a26023822011-12-29 00:23:55647 return browser_context_;
648}
649
[email protected]d202a7c2012-01-04 07:53:47650void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30651 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36652 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57653 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57654 // Verify that this controller is unused and that the input is valid.
Lei Zhang96031532019-10-10 19:05:47655 DCHECK_EQ(0, GetEntryCount());
656 DCHECK(!GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57657 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14658 selected_navigation < static_cast<int>(entries->size()));
arthursonzogni5c4c202d2017-04-25 23:41:27659 DCHECK_EQ(-1, pending_entry_index_);
[email protected]ce3fa3c2009-04-20 19:55:57660
[email protected]ce3fa3c2009-04-20 19:55:57661 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:44662 needs_reload_type_ = NeedsReloadType::kRestoreSession;
avif16f85a72015-11-13 18:25:03663 entries_.reserve(entries->size());
664 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36665 entries_.push_back(
666 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03667
668 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
669 // cleared out safely.
670 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57671
672 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36673 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57674}
675
toyoshim6142d96f2016-12-19 09:07:25676void NavigationControllerImpl::Reload(ReloadType reload_type,
677 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28678 DCHECK_NE(ReloadType::NONE, reload_type);
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28679 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32680 int current_index = -1;
681
Carlos IL42b416592019-10-07 23:10:36682 if (entry_replaced_by_post_commit_error_) {
683 // If there is an entry that was replaced by a currently active post-commit
684 // error navigation, this can't be the initial navigation.
685 DCHECK(!IsInitialNavigation());
686 // If the current entry is a post commit error, we reload the entry it
687 // replaced instead. We leave the error entry in place until a commit
688 // replaces it, but the pending entry points to the original entry in the
689 // meantime. Note that NavigateToExistingPendingEntry is able to handle the
690 // case that pending_entry_ != entries_[pending_entry_index_].
691 entry = entry_replaced_by_post_commit_error_.get();
692 current_index = GetCurrentEntryIndex();
693 } else if (IsInitialNavigation() && pending_entry_) {
694 // If we are reloading the initial navigation, just use the current
695 // pending entry. Otherwise look up the current entry.
[email protected]59167c22013-06-03 18:07:32696 entry = pending_entry_;
697 // The pending entry might be in entries_ (e.g., after a Clone), so we
698 // should also update the current_index.
699 current_index = pending_entry_index_;
700 } else {
arthursonzogni69a6a1b2019-09-17 09:23:00701 DiscardNonCommittedEntries();
[email protected]59167c22013-06-03 18:07:32702 current_index = GetCurrentEntryIndex();
703 if (current_index != -1) {
creis3da03872015-02-20 21:12:32704 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32705 }
[email protected]979a4bc2013-04-24 01:27:15706 }
[email protected]241db352013-04-22 18:04:05707
[email protected]59167c22013-06-03 18:07:32708 // If we are no where, then we can't reload. TODO(darin): We should add a
709 // CanReload method.
710 if (!entry)
711 return;
712
Takashi Toyoshimac7df3c22019-06-25 14:18:47713 // Set ReloadType for |entry|.
toyoshima63c2a62016-09-29 09:03:26714 entry->set_reload_type(reload_type);
715
Aran Gilman37d11632019-10-08 23:07:15716 if (g_check_for_repost && check_for_repost && entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30717 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07718 // they really want to do this. If they do, the dialog will call us back
719 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57720 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02721
[email protected]106a0812010-03-18 00:15:12722 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57723 delegate_->ActivateAndShowRepostFormWarningDialog();
Lei Zhang96031532019-10-10 19:05:47724 return;
initial.commit09911bf2008-07-26 23:55:29725 }
Lei Zhang96031532019-10-10 19:05:47726
727 if (!IsInitialNavigation())
728 DiscardNonCommittedEntries();
729
730 pending_entry_ = entry;
731 pending_entry_index_ = current_index;
732 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
733
734 NavigateToExistingPendingEntry(reload_type,
Kush Sinhaa8856ecb2021-09-01 14:28:31735 FrameTreeNode::kFrameTreeNodeInvalidId);
initial.commit09911bf2008-07-26 23:55:29736}
737
[email protected]d202a7c2012-01-04 07:53:47738void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48739 DCHECK(pending_reload_ != ReloadType::NONE);
740 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12741}
742
[email protected]d202a7c2012-01-04 07:53:47743void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48744 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12745 NOTREACHED();
746 } else {
toyoshim6142d96f2016-12-19 09:07:25747 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48748 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12749 }
750}
751
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57752bool NavigationControllerImpl::IsInitialNavigation() {
[email protected]27ba81c2012-08-21 17:04:09753 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11754}
755
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57756bool NavigationControllerImpl::IsInitialBlankNavigation() {
creis10a4ab72015-10-13 17:22:40757 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48758 // we'll need to check for entry count 1 and restore_type NONE (to exclude
759 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40760 return IsInitialNavigation() && GetEntryCount() == 0;
761}
762
Aran Gilman37d11632019-10-08 23:07:15763NavigationEntryImpl* NavigationControllerImpl::GetEntryWithUniqueID(
764 int nav_entry_id) const {
avi254eff02015-07-01 08:27:58765 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03766 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58767}
768
Adithya Srinivasan9b0c99c2021-08-10 15:19:45769NavigationEntryImpl*
770NavigationControllerImpl::GetEntryWithUniqueIDIncludingPending(
771 int nav_entry_id) const {
772 NavigationEntryImpl* entry = GetEntryWithUniqueID(nav_entry_id);
773 if (entry)
774 return entry;
775 return pending_entry_ && pending_entry_->GetUniqueID() == nav_entry_id
776 ? pending_entry_
777 : nullptr;
778}
779
W. James MacLean1c40862c2020-04-27 21:05:57780void NavigationControllerImpl::RegisterExistingOriginToPreventOptInIsolation(
781 const url::Origin& origin) {
782 for (int i = 0; i < GetEntryCount(); i++) {
783 auto* entry = GetEntryAtIndex(i);
784 entry->RegisterExistingOriginToPreventOptInIsolation(origin);
785 }
786 if (entry_replaced_by_post_commit_error_) {
787 // It's possible we could come back to this entry if the error
788 // page/interstitial goes away.
789 entry_replaced_by_post_commit_error_
790 ->RegisterExistingOriginToPreventOptInIsolation(origin);
791 }
792 // TODO(wjmaclean): Register pending commit NavigationRequests rather than
793 // visiting pending_entry_, which lacks a committed origin. This will be done
794 // in https://chromium-review.googlesource.com/c/chromium/src/+/2136703.
795}
796
avi25764702015-06-23 15:43:37797void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57798 std::unique_ptr<NavigationEntryImpl> entry) {
arthursonzogni69a6a1b2019-09-17 09:23:00799 DiscardNonCommittedEntries();
avi25764702015-06-23 15:43:37800 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27801 DCHECK_EQ(-1, pending_entry_index_);
[email protected]8ff00d72012-10-23 19:12:21802 NotificationService::current()->Notify(
Aran Gilman37d11632019-10-08 23:07:15803 NOTIFICATION_NAV_ENTRY_PENDING, Source<NavigationController>(this),
avi25764702015-06-23 15:43:37804 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20805}
806
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57807NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() {
[email protected]cbab76d2008-10-13 22:42:47808 if (pending_entry_)
809 return pending_entry_;
810 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20811}
812
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57813NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() {
[email protected]59167c22013-06-03 18:07:32814 // The pending entry is safe to return for new (non-history), browser-
815 // initiated navigations. Most renderer-initiated navigations should not
816 // show the pending entry, to prevent URL spoof attacks.
817 //
818 // We make an exception for renderer-initiated navigations in new tabs, as
819 // long as no other page has tried to access the initial empty document in
820 // the new tab. If another page modifies this blank page, a URL spoof is
821 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32822 bool safe_to_show_pending =
823 pending_entry_ &&
824 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09825 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32826 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46827 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32828
829 // Also allow showing the pending entry for history navigations in a new tab,
830 // such as Ctrl+Back. In this case, no existing page is visible and no one
831 // can script the new tab before it commits.
Aran Gilman37d11632019-10-08 23:07:15832 if (!safe_to_show_pending && pending_entry_ && pending_entry_index_ != -1 &&
833 IsInitialNavigation() && !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32834 safe_to_show_pending = true;
835
836 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19837 return pending_entry_;
838 return GetLastCommittedEntry();
839}
840
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57841int NavigationControllerImpl::GetCurrentEntryIndex() {
[email protected]765b35502008-08-21 00:51:20842 if (pending_entry_index_ != -1)
843 return pending_entry_index_;
844 return last_committed_entry_index_;
845}
846
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57847NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() {
[email protected]765b35502008-08-21 00:51:20848 if (last_committed_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28849 return nullptr;
avif16f85a72015-11-13 18:25:03850 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20851}
852
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57853bool NavigationControllerImpl::CanViewSource() {
Jeremy Roman2d8dfe132021-07-06 20:51:26854 const std::string& mime_type =
855 frame_tree_.root()->current_frame_host()->GetPage().contents_mime_type();
Kinuko Yasuda74702f92017-07-31 03:27:53856 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
857 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27858 NavigationEntry* visible_entry = GetVisibleEntry();
859 return visible_entry && !visible_entry->IsViewSourceMode() &&
Carlos ILd51e7702020-05-07 18:51:39860 is_viewable_mime_type;
[email protected]31682282010-01-15 18:05:16861}
862
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57863int NavigationControllerImpl::GetLastCommittedEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:27864 // The last committed entry index must always be less than the number of
Carlos IL4dea8902020-05-26 15:14:29865 // entries. If there are no entries, it must be -1.
arthursonzogni5c4c202d2017-04-25 23:41:27866 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
867 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55868 return last_committed_entry_index_;
869}
870
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57871int NavigationControllerImpl::GetEntryCount() {
Carlos IL4dea8902020-05-26 15:14:29872 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55873 return static_cast<int>(entries_.size());
874}
875
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57876NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(int index) {
avi25764702015-06-23 15:43:37877 if (index < 0 || index >= GetEntryCount())
878 return nullptr;
879
avif16f85a72015-11-13 18:25:03880 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25881}
882
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57883NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(int offset) {
avi057ce1492015-06-29 15:59:47884 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20885}
886
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57887int NavigationControllerImpl::GetIndexForOffset(int offset) {
[email protected]7bc2b032012-12-19 22:45:46888 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03889}
890
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57891bool NavigationControllerImpl::CanGoBack() {
Shivani Sharma298d12852019-01-22 20:04:03892 for (int index = GetIndexForOffset(-1); index >= 0; index--) {
893 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
894 return true;
895 }
896 return false;
[email protected]765b35502008-08-21 00:51:20897}
898
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57899bool NavigationControllerImpl::CanGoForward() {
WangHui74286d52021-03-31 16:17:15900 for (int index = GetIndexForOffset(1); index < GetEntryCount(); index++) {
901 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
902 return true;
903 }
904 return false;
[email protected]765b35502008-08-21 00:51:20905}
906
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57907bool NavigationControllerImpl::CanGoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03908 int index = GetIndexForOffset(offset);
909 return index >= 0 && index < GetEntryCount();
910}
911
WangHui74286d52021-03-31 16:17:15912#if defined(OS_ANDROID)
913bool NavigationControllerImpl::CanGoToOffsetWithSkipping(int offset) {
WangHui74286d52021-03-31 16:17:15914 if (offset == 0)
915 return true;
916 int increment = offset > 0 ? 1 : -1;
917 int non_skippable_entries = 0;
918 for (int index = GetIndexForOffset(increment);
919 index >= 0 && index < GetEntryCount(); index += increment) {
920 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
921 non_skippable_entries++;
922
923 if (non_skippable_entries == std::abs(offset))
924 return true;
925 }
926 return false;
927}
928#endif
929
[email protected]d202a7c2012-01-04 07:53:47930void NavigationControllerImpl::GoBack() {
shivanisha55201872018-12-13 04:29:06931 int target_index = GetIndexForOffset(-1);
932
Elly Fong-Jones40ee8112021-06-23 19:10:52933 // Move the target index past the skippable entries.
Shivani Sharma298d12852019-01-22 20:04:03934 bool all_skippable_entries = true;
Elly Fong-Jones40ee8112021-06-23 19:10:52935 while (target_index >= 0) {
936 if (!GetEntryAtIndex(target_index)->should_skip_on_back_forward_ui()) {
Shivani Sharma298d12852019-01-22 20:04:03937 all_skippable_entries = false;
shivanisha55201872018-12-13 04:29:06938 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16939 }
Elly Fong-Jones40ee8112021-06-23 19:10:52940 target_index--;
shivanisha55201872018-12-13 04:29:06941 }
Miyoung Shin1c565c912021-03-17 12:11:21942
Shivani Sharma298d12852019-01-22 20:04:03943 // Do nothing if all entries are skippable. Normally this path would not
944 // happen as consumers would have already checked it in CanGoBack but a lot of
945 // tests do not do that.
Elly Fong-Jonesccc6d1f2021-06-14 18:32:42946 if (all_skippable_entries)
Shivani Sharma298d12852019-01-22 20:04:03947 return;
shivanisha55201872018-12-13 04:29:06948
shivanisha55201872018-12-13 04:29:06949 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20950}
951
[email protected]d202a7c2012-01-04 07:53:47952void NavigationControllerImpl::GoForward() {
shivanisha55201872018-12-13 04:29:06953 int target_index = GetIndexForOffset(1);
954
Shivani Sharma2d5b4b6b2019-01-08 16:07:16955 // Note that at least one entry (the last one) will be non-skippable since
956 // entries are marked skippable only when they add another entry because of
957 // redirect or pushState.
Elly Fong-Jones40ee8112021-06-23 19:10:52958 while (target_index < static_cast<int>(entries_.size())) {
959 if (!GetEntryAtIndex(target_index)->should_skip_on_back_forward_ui())
shivanisha55201872018-12-13 04:29:06960 break;
Elly Fong-Jones40ee8112021-06-23 19:10:52961 target_index++;
shivanisha55201872018-12-13 04:29:06962 }
shivanisha55201872018-12-13 04:29:06963 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20964}
965
[email protected]d202a7c2012-01-04 07:53:47966void NavigationControllerImpl::GoToIndex(int index) {
Kush Sinhaa8856ecb2021-09-01 14:28:31967 GoToIndex(index, FrameTreeNode::kFrameTreeNodeInvalidId);
Dave Tapuska8bfd84c2019-03-26 20:47:16968}
969
970void NavigationControllerImpl::GoToIndex(int index,
Kush Sinhaa8856ecb2021-09-01 14:28:31971 int sandbox_frame_tree_node_id) {
sunjian30574a62017-03-21 21:39:44972 TRACE_EVENT0("browser,navigation,benchmark",
973 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:20974 if (index < 0 || index >= static_cast<int>(entries_.size())) {
975 NOTREACHED();
976 return;
977 }
978
[email protected]cbab76d2008-10-13 22:42:47979 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20980
arthursonzogni5c4c202d2017-04-25 23:41:27981 DCHECK_EQ(nullptr, pending_entry_);
982 DCHECK_EQ(-1, pending_entry_index_);
983 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:20984 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:27985 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
986 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
Kush Sinhaa8856ecb2021-09-01 14:28:31987 NavigateToExistingPendingEntry(ReloadType::NONE, sandbox_frame_tree_node_id);
[email protected]765b35502008-08-21 00:51:20988}
989
[email protected]d202a7c2012-01-04 07:53:47990void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12991 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03992 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20993 return;
994
[email protected]9ba14052012-06-22 23:50:03995 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20996}
997
WangHui74286d52021-03-31 16:17:15998#if defined(OS_ANDROID)
999void NavigationControllerImpl::GoToOffsetWithSkipping(int offset) {
1000 // Note: This is actually reached in unit tests.
1001 if (!CanGoToOffsetWithSkipping(offset))
1002 return;
1003
Elly Fong-Jonesccc6d1f2021-06-14 18:32:421004 if (offset == 0) {
WangHui74286d52021-03-31 16:17:151005 GoToIndex(GetIndexForOffset(offset));
1006 return;
1007 }
1008 int increment = offset > 0 ? 1 : -1;
1009 // Find the offset without counting skippable entries.
1010 int target_index = GetIndexForOffset(increment);
1011 int non_skippable_entries = 0;
1012 for (int index = target_index; index >= 0 && index < GetEntryCount();
1013 index += increment) {
1014 if (!GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
1015 non_skippable_entries++;
1016
1017 if (non_skippable_entries == std::abs(offset)) {
1018 target_index = index;
1019 break;
1020 }
1021 }
1022
1023 GoToIndex(target_index);
1024}
1025#endif
1026
[email protected]41374f12013-07-24 02:49:281027bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
Aran Gilman37d11632019-10-08 23:07:151028 if (index == last_committed_entry_index_ || index == pending_entry_index_)
[email protected]41374f12013-07-24 02:49:281029 return false;
[email protected]6a13a6c2011-12-20 21:47:121030
[email protected]43032342011-03-21 14:10:311031 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:281032 return true;
[email protected]cbab76d2008-10-13 22:42:471033}
1034
Michael Thiessen9b14d512019-09-23 21:19:471035void NavigationControllerImpl::PruneForwardEntries() {
1036 DiscardNonCommittedEntries();
1037 int remove_start_index = last_committed_entry_index_ + 1;
Lei Zhang96031532019-10-10 19:05:471038 int num_removed = static_cast<int>(entries_.size()) - remove_start_index;
Michael Thiessen9b14d512019-09-23 21:19:471039 if (num_removed <= 0)
1040 return;
1041 entries_.erase(entries_.begin() + remove_start_index, entries_.end());
1042 NotifyPrunedEntries(this, remove_start_index /* start index */,
1043 num_removed /* count */);
1044}
1045
Aran Gilman37d11632019-10-08 23:07:151046void NavigationControllerImpl::UpdateVirtualURLToURL(NavigationEntryImpl* entry,
1047 const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:321048 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:311049 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:511050 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
1051 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:321052 }
1053}
1054
Harkiran Bolariaba823e42021-05-21 18:30:361055base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURL(
1056 const GURL& url,
1057 const Referrer& referrer,
1058 ui::PageTransition transition,
1059 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:471060 LoadURLParams params(url);
1061 params.referrer = referrer;
1062 params.transition_type = transition;
1063 params.extra_headers = extra_headers;
Harkiran Bolariaba823e42021-05-21 18:30:361064 return LoadURLWithParams(params);
[email protected]cf002332012-08-14 19:17:471065}
1066
Harkiran Bolariaba823e42021-05-21 18:30:361067base::WeakPtr<NavigationHandle> NavigationControllerImpl::LoadURLWithParams(
1068 const LoadURLParams& params) {
Lukasz Anforowicz435bcb582019-07-12 20:50:061069 if (params.is_renderer_initiated)
1070 DCHECK(params.initiator_origin.has_value());
1071
naskob8744d22014-08-28 17:07:431072 TRACE_EVENT1("browser,navigation",
Aran Gilman37d11632019-10-08 23:07:151073 "NavigationControllerImpl::LoadURLWithParams", "url",
1074 params.url.possibly_invalid_spec());
Ian Vollick9dda0522019-09-11 02:24:291075 bool is_explicit_navigation =
1076 GetContentClient()->browser()->IsExplicitNavigation(
1077 params.transition_type);
1078 if (HandleDebugURL(params.url, params.transition_type,
1079 is_explicit_navigation)) {
[email protected]47752982014-07-29 08:01:431080 // If Telemetry is running, allow the URL load to proceed as if it's
1081 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:491082 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:431083 cc::switches::kEnableGpuBenchmarking))
Harkiran Bolariaba823e42021-05-21 18:30:361084 return nullptr;
[email protected]47752982014-07-29 08:01:431085 }
[email protected]8bf1048012012-02-08 01:22:181086
[email protected]cf002332012-08-14 19:17:471087 // Checks based on params.load_type.
1088 switch (params.load_type) {
1089 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:431090 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:471091 break;
1092 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:261093 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:471094 NOTREACHED() << "Data load must use data scheme.";
Harkiran Bolariaba823e42021-05-21 18:30:361095 return nullptr;
[email protected]cf002332012-08-14 19:17:471096 }
1097 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:461098 }
[email protected]e47ae9472011-10-13 19:48:341099
[email protected]e47ae9472011-10-13 19:48:341100 // The user initiated a load, we don't need to reload anymore.
1101 needs_reload_ = false;
1102
Harkiran Bolariaba823e42021-05-21 18:30:361103 return NavigateWithoutEntry(params);
[email protected]132e281a2012-07-31 18:32:441104}
1105
Mohamed Abdelhalim833de902019-09-16 17:41:451106bool NavigationControllerImpl::PendingEntryMatchesRequest(
1107 NavigationRequest* request) const {
creisb4dc9332016-03-14 21:39:191108 return pending_entry_ &&
Mohamed Abdelhalim833de902019-09-16 17:41:451109 pending_entry_->GetUniqueID() == request->nav_entry_id();
creisb4dc9332016-03-14 21:39:191110}
1111
[email protected]d202a7c2012-01-04 07:53:471112bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:321113 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071114 const mojom::DidCommitProvisionalLoadParams& params,
peary21b0f797b2016-09-28 17:28:331115 LoadCommittedDetails* details,
Eugene But712f03d2018-05-22 16:03:441116 bool is_same_document_navigation,
Nate Chapinc7019dd7d2021-06-25 18:29:251117 bool was_on_initial_empty_document,
Shivani Sharmaffb32b82019-04-09 16:58:471118 bool previous_document_was_activated,
Camille Lamy10aafcd32018-12-05 15:48:131119 NavigationRequest* navigation_request) {
1120 DCHECK(navigation_request);
Takashi Toyoshimaa9f66802021-08-18 02:40:171121 if (ShouldMaintainTrivialSessionHistory() && GetLastCommittedEntry()) {
1122 // Ensure that this navigation does not add a navigation entry, since
1123 // ShouldMaintainTrivialSessionHistory() means we should not add an entry
1124 // beyond the last committed one. Therefore, `should_replace_current_entry`
1125 // should be set, which replaces the current entry, or this should be a
1126 // reload, which does not create a new entry.
1127 DCHECK(params.should_replace_current_entry ||
1128 navigation_request->GetReloadType() != ReloadType::NONE);
1129 }
[email protected]cd2e15742013-03-08 04:08:311130 is_initial_navigation_ = false;
1131
[email protected]0e8db942008-09-24 21:21:481132 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:431133 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:481134 if (GetLastCommittedEntry()) {
Carlos IL42b416592019-10-07 23:10:361135 if (entry_replaced_by_post_commit_error_) {
1136 if (is_same_document_navigation) {
1137 // Same document navigations should not be possible on error pages and
1138 // would leave the controller in a weird state. Kill the renderer if
1139 // that happens.
1140 bad_message::ReceivedBadMessage(
1141 rfh->GetProcess(), bad_message::NC_SAME_DOCUMENT_POST_COMMIT_ERROR);
1142 }
1143 // Any commit while a post-commit error page is showing should put the
1144 // original entry back, replacing the error page's entry. This includes
1145 // reloads, where the original entry was used as the pending entry and
1146 // should now be at the correct index at commit time.
1147 entries_[last_committed_entry_index_] =
1148 std::move(entry_replaced_by_post_commit_error_);
1149 }
Fergal Daly8e33cf62020-12-12 01:06:071150 details->previous_main_frame_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:551151 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:431152 if (pending_entry_ &&
1153 pending_entry_->GetIsOverridingUserAgent() !=
1154 GetLastCommittedEntry()->GetIsOverridingUserAgent())
1155 overriding_user_agent_changed = true;
[email protected]0e8db942008-09-24 21:21:481156 } else {
Gang Wu325f03f42021-02-25 20:00:461157 // GetLastCommittedEntry() is null, so this is the first entry.
Fergal Daly8e33cf62020-12-12 01:06:071158 details->previous_main_frame_url = GURL();
[email protected]0e8db942008-09-24 21:21:481159 details->previous_entry_index = -1;
Gang Wu325f03f42021-02-25 20:00:461160 if (pending_entry_ && pending_entry_->GetIsOverridingUserAgent()) {
1161 // Default setting is NOT override the user agent, so overriding the user
1162 // agent in first entry should be considered as user agent changed as
1163 // well.
1164 overriding_user_agent_changed = true;
1165 }
[email protected]0e8db942008-09-24 21:21:481166 }
[email protected]ecd9d8702008-08-28 22:10:171167
Dave Tapuskaa2ab4f252021-07-08 21:31:281168 bool is_main_frame_navigation = !rfh->GetParent();
1169
Alexander Timind2f2e4f22019-04-02 20:04:531170 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1171 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281172 // For primary frame tree navigations, choose an appropriate
1173 // BackForwardCacheMetrics to be associated with the NavigationEntry, by
1174 // either creating a new object or reusing the previous one depending on
1175 // whether it's a main frame navigation or not.
1176 scoped_refptr<BackForwardCacheMetrics> back_forward_cache_metrics;
1177 if (navigation_request->frame_tree_node()->frame_tree()->type() ==
1178 FrameTree::Type::kPrimary) {
1179 back_forward_cache_metrics =
1180 BackForwardCacheMetrics::CreateOrReuseBackForwardCacheMetrics(
1181 GetLastCommittedEntry(), is_main_frame_navigation,
1182 params.document_sequence_number);
1183 }
Alexander Timind2f2e4f22019-04-02 20:04:531184 // Notify the last active entry that we have navigated away.
Dave Tapuskaa2ab4f252021-07-08 21:31:281185 if (is_main_frame_navigation && !is_same_document_navigation) {
Alexander Timind2f2e4f22019-04-02 20:04:531186 if (NavigationEntryImpl* navigation_entry = GetLastCommittedEntry()) {
1187 if (auto* metrics = navigation_entry->back_forward_cache_metrics()) {
Hajime Hoshic7606502021-04-14 02:42:161188 metrics->MainFrameDidNavigateAwayFromDocument(rfh, navigation_request);
Alexander Timind2f2e4f22019-04-02 20:04:531189 }
1190 }
1191 }
1192
fdegans9caf66a2015-07-30 21:10:421193 // If there is a pending entry at this point, it should have a SiteInstance,
1194 // except for restored entries.
jam48cea9082017-02-15 06:13:291195 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:481196 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
Lukasz Anforowicz6b75c0d2020-12-01 22:56:081197 pending_entry_->IsRestored());
1198 if (pending_entry_ && pending_entry_->IsRestored()) {
Lukasz Anforowicz0de0f452020-12-02 19:57:151199 pending_entry_->set_restore_type(RestoreType::kNotRestored);
jam48cea9082017-02-15 06:13:291200 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:481201 }
[email protected]e9ba4472008-09-14 15:42:431202
Nasko Oskovaee2f862018-06-15 00:05:521203 // If this is a navigation to a matching pending_entry_ and the SiteInstance
1204 // has changed, this must be treated as a new navigation with replacement.
1205 // Set the replacement bit here and ClassifyNavigation will identify this
Charlie Reisc0f17d2d2021-01-12 18:52:491206 // case and return NEW_ENTRY.
Nasko Oskovaee2f862018-06-15 00:05:521207 if (!rfh->GetParent() && pending_entry_ &&
Rakina Zata Amnif6950d552020-11-24 03:26:101208 pending_entry_->GetUniqueID() ==
1209 navigation_request->commit_params().nav_entry_id &&
Nasko Oskovaee2f862018-06-15 00:05:521210 pending_entry_->site_instance() &&
1211 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
1212 DCHECK_NE(-1, pending_entry_index_);
1213 // TODO(nasko,creis): Instead of setting this value here, set
1214 // should_replace_current_entry on the parameters we send to the
1215 // renderer process as part of CommitNavigation. The renderer should
1216 // in turn send it back here as part of |params| and it can be just
1217 // enforced and renderer process terminated on mismatch.
1218 details->did_replace_entry = true;
1219 } else {
1220 // The renderer tells us whether the navigation replaces the current entry.
1221 details->did_replace_entry = params.should_replace_current_entry;
1222 }
[email protected]bcd904482012-02-01 01:54:221223
[email protected]e9ba4472008-09-14 15:42:431224 // Do navigation-type specific actions. These will make and commit an entry.
Rakina Zata Amnif6950d552020-11-24 03:26:101225 details->type = ClassifyNavigation(rfh, params, navigation_request);
[email protected]4bf3522c2010-08-19 21:00:201226
eugenebutee08663a2017-04-27 17:43:121227 // is_same_document must be computed before the entry gets committed.
Eugene But712f03d2018-05-22 16:03:441228 details->is_same_document = is_same_document_navigation;
[email protected]b9d4dfdc2013-08-08 00:25:121229
Lucas Furukawa Gadanie3f7e792021-04-22 17:56:071230 details->is_prerender_activation =
1231 navigation_request->IsPrerenderedPageActivation();
1232
Peter Boströmd7592132019-01-30 04:50:311233 // Make sure we do not discard the pending entry for a different ongoing
1234 // navigation when a same document commit comes in unexpectedly from the
1235 // renderer. Limit this to a very narrow set of conditions to avoid risks to
1236 // other navigation types. See https://crbug.com/900036.
1237 // TODO(crbug.com/926009): Handle history.pushState() as well.
1238 bool keep_pending_entry = is_same_document_navigation &&
Charlie Reisc0f17d2d2021-01-12 18:52:491239 details->type == NAVIGATION_TYPE_EXISTING_ENTRY &&
Peter Boströmd7592132019-01-30 04:50:311240 pending_entry_ &&
Mohamed Abdelhalim833de902019-09-16 17:41:451241 !PendingEntryMatchesRequest(navigation_request);
Peter Boströmd7592132019-01-30 04:50:311242
[email protected]0e8db942008-09-24 21:21:481243 switch (details->type) {
Charlie Reisc0f17d2d2021-01-12 18:52:491244 case NAVIGATION_TYPE_NEW_ENTRY:
1245 RendererDidNavigateToNewEntry(
shivanisha41f04c52018-12-12 15:52:051246 rfh, params, details->is_same_document, details->did_replace_entry,
Mohamed Abdelhalim833de902019-09-16 17:41:451247 previous_document_was_activated, navigation_request);
[email protected]e9ba4472008-09-14 15:42:431248 break;
Charlie Reisc0f17d2d2021-01-12 18:52:491249 case NAVIGATION_TYPE_EXISTING_ENTRY:
1250 RendererDidNavigateToExistingEntry(rfh, params, details->is_same_document,
1251 was_restored, navigation_request,
1252 keep_pending_entry);
[email protected]e9ba4472008-09-14 15:42:431253 break;
[email protected]8ff00d72012-10-23 19:12:211254 case NAVIGATION_TYPE_NEW_SUBFRAME:
Shivani Sharmaffb32b82019-04-09 16:58:471255 RendererDidNavigateNewSubframe(
1256 rfh, params, details->is_same_document, details->did_replace_entry,
Mohamed Abdelhalim833de902019-09-16 17:41:451257 previous_document_was_activated, navigation_request);
[email protected]e9ba4472008-09-14 15:42:431258 break;
[email protected]8ff00d72012-10-23 19:12:211259 case NAVIGATION_TYPE_AUTO_SUBFRAME:
Antonio Sartori78a749f2020-11-30 12:03:391260 if (!RendererDidNavigateAutoSubframe(
Nate Chapinc7019dd7d2021-06-25 18:29:251261 rfh, params, details->is_same_document,
1262 was_on_initial_empty_document, navigation_request)) {
creisce0ef3572017-01-26 17:53:081263 // We don't send a notification about auto-subframe PageState during
1264 // UpdateStateForFrame, since it looks like nothing has changed. Send
1265 // it here at commit time instead.
1266 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:431267 return false;
creis59d5a47cb2016-08-24 23:57:191268 }
[email protected]e9ba4472008-09-14 15:42:431269 break;
[email protected]8ff00d72012-10-23 19:12:211270 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:491271 // If a pending navigation was in progress, this canceled it. We should
1272 // discard it and make sure it is removed from the URL bar. After that,
1273 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:431274 // the caller that nothing has happened.
arthursonzogni69a6a1b2019-09-17 09:23:001275 if (pending_entry_)
[email protected]20d1c992011-04-12 21:17:491276 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431277 return false;
Aran Gilman37d11632019-10-08 23:07:151278 case NAVIGATION_TYPE_UNKNOWN:
[email protected]e9ba4472008-09-14 15:42:431279 NOTREACHED();
Aran Gilman37d11632019-10-08 23:07:151280 break;
[email protected]765b35502008-08-21 00:51:201281 }
1282
[email protected]688aa65c62012-09-28 04:32:221283 // At this point, we know that the navigation has just completed, so
1284 // record the time.
1285 //
1286 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:261287 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:331288 base::Time timestamp =
1289 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
1290 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
danakjf26536bf2020-09-10 00:46:131291 << timestamp.ToDeltaSinceWindowsEpoch().InMicroseconds();
[email protected]688aa65c62012-09-28 04:32:221292
Peter Boströmd7592132019-01-30 04:50:311293 // If we aren't keeping the pending entry, there shouldn't be one at this
1294 // point. Clear it again in case any error cases above forgot to do so.
1295 // TODO(pbos): Consider a CHECK here that verifies that the pending entry has
1296 // been cleared instead of protecting against it.
1297 if (!keep_pending_entry)
arthursonzogni69a6a1b2019-09-17 09:23:001298 DiscardNonCommittedEntries();
[email protected]f233e4232013-02-23 00:55:141299
[email protected]e9ba4472008-09-14 15:42:431300 // All committed entries should have nonempty content state so WebKit doesn't
1301 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:471302 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:321303 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:221304 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:441305 active_entry->SetHttpStatusCode(params.http_status_code);
Alexander Timind2f2e4f22019-04-02 20:04:531306 // TODO(altimin, crbug.com/933147): Remove this logic after we are done with
1307 // implementing back-forward cache.
Dave Tapuskaa2ab4f252021-07-08 21:31:281308 if (back_forward_cache_metrics &&
1309 !active_entry->back_forward_cache_metrics()) {
Alexander Timind2f2e4f22019-04-02 20:04:531310 active_entry->set_back_forward_cache_metrics(
1311 std::move(back_forward_cache_metrics));
1312 }
Dave Tapuskaa2ab4f252021-07-08 21:31:281313
1314 // `back_forward_cache_metrics()` may return null as we do not record
1315 // back-forward cache metrics for navigations in non-primary frame trees.
1316 if (active_entry->back_forward_cache_metrics()) {
1317 active_entry->back_forward_cache_metrics()->DidCommitNavigation(
1318 navigation_request,
1319 back_forward_cache_.IsAllowed(navigation_request->GetURL()));
1320 }
naskoc7533512016-05-06 17:01:121321
Charles Reisc0507202017-09-21 00:40:021322 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
1323 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
1324 // A mismatch can occur if the renderer lies or due to a unique name collision
1325 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:121326 FrameNavigationEntry* frame_entry =
1327 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:021328 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
1329 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:031330 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:081331 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
1332 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:031333 DCHECK(params.page_state == frame_entry->page_state());
Nasko Oskovbbcfc0002019-11-20 20:03:201334
1335 // Remember the bindings the renderer process has at this point, so that
1336 // we do not grant this entry additional bindings if we come back to it.
1337 frame_entry->SetBindings(rfh->GetEnabledBindings());
creis4e2ecb72015-06-20 00:46:301338 }
[email protected]132e281a2012-07-31 18:32:441339
[email protected]97d8f0d2013-10-29 16:49:211340 // Once it is committed, we no longer need to track several pieces of state on
1341 // the entry.
naskoc7533512016-05-06 17:01:121342 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131343
[email protected]49bd30e62011-03-22 20:12:591344 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221345 // TODO(creis): This check won't pass for subframes until we create entries
1346 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001347 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421348 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591349
[email protected]e9ba4472008-09-14 15:42:431350 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001351 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001352 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311353 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531354
arthursonzogni7ddc6542021-04-09 09:16:501355 active_entry->SetIsOverridingUserAgent(
1356 navigation_request->is_overriding_user_agent());
Scott Violetc36f7462020-05-06 23:13:031357
[email protected]93f230e02011-06-01 14:40:001358 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291359
John Abd-El-Malek380d3c5922017-09-08 00:20:311360 if (active_entry->GetURL().SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121361 !navigation_request->DidEncounterError()) {
John Abd-El-Malek969cdd94e2017-07-10 22:18:161362 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus",
1363 !!active_entry->GetSSL().certificate);
1364 }
1365
aelias100c9192017-01-13 00:01:431366 if (overriding_user_agent_changed)
1367 delegate_->UpdateOverridingUserAgent();
1368
creis03b48002015-11-04 00:54:561369 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1370 // one knows the latest NavigationEntry it is showing (whether it has
1371 // committed anything in this navigation or not). This allows things like
1372 // state and title updates from RenderFrames to apply to the latest relevant
1373 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381374 int nav_entry_id = active_entry->GetUniqueID();
Carlos Caballero40b0efd2021-01-26 11:55:001375 for (FrameTreeNode* node : frame_tree_.Nodes())
dcheng57e39e22016-01-21 00:25:381376 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
Hayato Ito2c8c08d02021-06-23 03:38:431377
1378 if (navigation_request->IsPrerenderedPageActivation()) {
1379 BroadcastHistoryOffsetAndLength();
1380 // TODO(crbug.com/1222893): Broadcasting happens after the prerendered page
1381 // is activated. As a result, a "prerenderingchange" event listener sees the
1382 // history.length which is not updated yet. We should guarantee that
1383 // history's length and offset should be updated before a
1384 // "prerenderingchange" event listener runs. One possible approach is to use
1385 // the same IPC which "prerenderingchange" uses, and propagate history's
1386 // length and offset together with that.
1387 }
1388
[email protected]e9ba4472008-09-14 15:42:431389 return true;
initial.commit09911bf2008-07-26 23:55:291390}
1391
[email protected]8ff00d72012-10-23 19:12:211392NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321393 RenderFrameHostImpl* rfh,
Rakina Zata Amnif6950d552020-11-24 03:26:101394 const mojom::DidCommitProvisionalLoadParams& params,
1395 NavigationRequest* navigation_request) {
Piotr Tworekbad51282020-09-30 19:17:591396 TraceReturnReason<tracing_category::kNavigation> trace_return(
Nasko Oskovae49e292020-08-13 02:08:511397 "ClassifyNavigation");
1398
avi7c6f35e2015-05-08 17:52:381399 if (params.did_create_new_entry) {
Charlie Reisc0f17d2d2021-01-12 18:52:491400 // A new entry. We may or may not have a corresponding pending entry, and
avi7c6f35e2015-05-08 17:52:381401 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001402 if (!rfh->GetParent()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491403 trace_return.set_return_reason("new entry, no parent, new entry");
1404 return NAVIGATION_TYPE_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381405 }
1406
1407 // When this is a new subframe navigation, we should have a committed page
1408 // in which it's a subframe. This may not be the case when an iframe is
1409 // navigated on a popup navigated to about:blank (the iframe would be
1410 // written into the popup by script on the main page). For these cases,
1411 // there isn't any navigation stuff we can do, so just ignore it.
Nasko Oskovae49e292020-08-13 02:08:511412 if (!GetLastCommittedEntry()) {
1413 trace_return.set_return_reason("new entry, no last committed, ignore");
avi7c6f35e2015-05-08 17:52:381414 return NAVIGATION_TYPE_NAV_IGNORE;
Nasko Oskovae49e292020-08-13 02:08:511415 }
avi7c6f35e2015-05-08 17:52:381416
1417 // Valid subframe navigation.
Nasko Oskovae49e292020-08-13 02:08:511418 trace_return.set_return_reason("new entry, new subframe");
avi7c6f35e2015-05-08 17:52:381419 return NAVIGATION_TYPE_NEW_SUBFRAME;
1420 }
1421
Charlie Reisc0f17d2d2021-01-12 18:52:491422 // We only clear the session history in tests when navigating to a new entry.
avi7c6f35e2015-05-08 17:52:381423 DCHECK(!params.history_list_was_cleared);
1424
avi39c1edd32015-06-04 20:06:001425 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381426 // All manual subframes would be did_create_new_entry and handled above, so
1427 // we know this is auto.
Nasko Oskovae49e292020-08-13 02:08:511428 if (GetLastCommittedEntry()) {
1429 trace_return.set_return_reason("subframe, last commmited, auto subframe");
avi7c6f35e2015-05-08 17:52:381430 return NAVIGATION_TYPE_AUTO_SUBFRAME;
Nasko Oskovae49e292020-08-13 02:08:511431 }
Lei Zhang96031532019-10-10 19:05:471432
1433 // We ignore subframes created in non-committed pages; we'd appreciate if
1434 // people stopped doing that.
Nasko Oskovae49e292020-08-13 02:08:511435 trace_return.set_return_reason("subframe, no last commmited, ignore");
Lei Zhang96031532019-10-10 19:05:471436 return NAVIGATION_TYPE_NAV_IGNORE;
avi7c6f35e2015-05-08 17:52:381437 }
1438
Rakina Zata Amnif6950d552020-11-24 03:26:101439 const int nav_entry_id = navigation_request->commit_params().nav_entry_id;
1440 if (nav_entry_id == 0) {
avi7c6f35e2015-05-08 17:52:381441 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1442 // create a new page.
1443
1444 // Just like above in the did_create_new_entry case, it's possible to
1445 // scribble onto an uncommitted page. Again, there isn't any navigation
1446 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231447 NavigationEntry* last_committed = GetLastCommittedEntry();
Nasko Oskovae49e292020-08-13 02:08:511448 if (!last_committed) {
1449 trace_return.set_return_reason("nav entry 0, no last committed, ignore");
avi7c6f35e2015-05-08 17:52:381450 return NAVIGATION_TYPE_NAV_IGNORE;
Nasko Oskovae49e292020-08-13 02:08:511451 }
avi7c6f35e2015-05-08 17:52:381452
Hayato Ito2ae49442021-07-02 02:59:251453 // This main frame navigation is not a history navigation (since
1454 // nav_entry_id is 0), but didn't create a new entry. So this must be a
1455 // reload or a replacement navigation, which will modify the existing entry.
1456 //
Nasko Oskov332593c2018-08-16 17:21:341457 // TODO(nasko): With error page isolation, reloading an existing session
1458 // history entry can result in change of SiteInstance. Check for such a case
Charlie Reisc0f17d2d2021-01-12 18:52:491459 // here and classify it as NEW_ENTRY, as such navigations should be treated
Nasko Oskov332593c2018-08-16 17:21:341460 // as new with replacement.
Nasko Oskovae49e292020-08-13 02:08:511461 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491462 "nav entry 0, last committed, existing entry");
1463 return NAVIGATION_TYPE_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381464 }
1465
Rakina Zata Amnif6950d552020-11-24 03:26:101466 if (pending_entry_ && pending_entry_->GetUniqueID() == nav_entry_id) {
Nasko Oskovaee2f862018-06-15 00:05:521467 // If the SiteInstance of the |pending_entry_| does not match the
1468 // SiteInstance that got committed, treat this as a new navigation with
1469 // replacement. This can happen if back/forward/reload encounters a server
1470 // redirect to a different site or an isolated error page gets successfully
1471 // reloaded into a different SiteInstance.
1472 if (pending_entry_->site_instance() &&
1473 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491474 trace_return.set_return_reason("pending matching nav entry, new entry");
1475 return NAVIGATION_TYPE_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521476 }
creis77c9aa32015-09-25 19:59:421477
Nasko Oskovaee2f862018-06-15 00:05:521478 if (pending_entry_index_ == -1) {
1479 // In this case, we have a pending entry for a load of a new URL but Blink
1480 // didn't do a new navigation (params.did_create_new_entry). First check
1481 // to make sure Blink didn't treat a new cross-process navigation as
1482 // inert, and thus set params.did_create_new_entry to false. In that case,
Charlie Reis7e2cb6d2021-01-26 01:27:161483 // we must treat it as NEW rather than the converted reload case below,
1484 // since the new SiteInstance doesn't match the last committed entry.
Nasko Oskovaee2f862018-06-15 00:05:521485 if (!GetLastCommittedEntry() ||
1486 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance()) {
Charlie Reis7e2cb6d2021-01-26 01:27:161487 trace_return.set_return_reason("new pending, new entry");
Charlie Reisc0f17d2d2021-01-12 18:52:491488 return NAVIGATION_TYPE_NEW_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521489 }
1490
1491 // Otherwise, this happens when you press enter in the URL bar to reload.
Charlie Reis7e2cb6d2021-01-26 01:27:161492 // We will create a pending entry, but NavigateWithoutEntry will convert
1493 // it to a reload since it's the same page and not create a new entry for
1494 // it. (The user doesn't want to have a new back/forward entry when they
1495 // do this.) Therefore we want to just ignore the pending entry and go
1496 // back to where we were (the "existing entry").
1497 trace_return.set_return_reason("new pending, existing (same) entry");
1498 return NAVIGATION_TYPE_EXISTING_ENTRY;
Nasko Oskovaee2f862018-06-15 00:05:521499 }
avi7c6f35e2015-05-08 17:52:381500 }
1501
creis26d22632017-04-21 20:23:561502 // Everything below here is assumed to be an existing entry, but if there is
1503 // no last committed entry, we must consider it a new navigation instead.
Nasko Oskovae49e292020-08-13 02:08:511504 if (!GetLastCommittedEntry()) {
Charlie Reisc0f17d2d2021-01-12 18:52:491505 trace_return.set_return_reason("no last committed, new entry");
1506 return NAVIGATION_TYPE_NEW_ENTRY;
Nasko Oskovae49e292020-08-13 02:08:511507 }
creis26d22632017-04-21 20:23:561508
Rakina Zata Amni153d5702021-09-13 22:48:001509 if (navigation_request->commit_params().intended_as_new_entry) {
avi7c6f35e2015-05-08 17:52:381510 // This was intended to be a navigation to a new entry but the pending entry
Charlie Reisc0f17d2d2021-01-12 18:52:491511 // got cleared in the meanwhile. Classify as EXISTING_ENTRY because we may
1512 // or may not have a pending entry.
Charlie Reis7e2cb6d2021-01-26 01:27:161513 trace_return.set_return_reason("intended as new entry, existing entry");
Charlie Reisc0f17d2d2021-01-12 18:52:491514 return NAVIGATION_TYPE_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381515 }
1516
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121517 if (navigation_request->DidEncounterError() &&
1518 failed_pending_entry_id_ != 0 &&
Rakina Zata Amnif6950d552020-11-24 03:26:101519 nav_entry_id == failed_pending_entry_id_) {
avi7c6f35e2015-05-08 17:52:381520 // If the renderer was going to a new pending entry that got cleared because
1521 // of an error, this is the case of the user trying to retry a failed load
Charlie Reisc0f17d2d2021-01-12 18:52:491522 // by pressing return. Classify as EXISTING_ENTRY because we probably don't
avi7c6f35e2015-05-08 17:52:381523 // have a pending entry.
Nasko Oskovae49e292020-08-13 02:08:511524 trace_return.set_return_reason(
Charlie Reisc0f17d2d2021-01-12 18:52:491525 "unreachable, matching pending, existing entry");
1526 return NAVIGATION_TYPE_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381527 }
1528
Charlie Reisc0f17d2d2021-01-12 18:52:491529 // Now we know that the notification is for an existing entry; find it.
Rakina Zata Amnif6950d552020-11-24 03:26:101530 int existing_entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
Nasko Oskovae49e292020-08-13 02:08:511531 trace_return.traced_value()->SetInteger("existing_entry_index",
1532 existing_entry_index);
avi7c6f35e2015-05-08 17:52:381533 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441534 // The renderer has committed a navigation to an entry that no longer
1535 // exists. Because the renderer is showing that page, resurrect that entry.
Charlie Reisc0f17d2d2021-01-12 18:52:491536 trace_return.set_return_reason("existing entry -1, new entry");
1537 return NAVIGATION_TYPE_NEW_ENTRY;
avi7c6f35e2015-05-08 17:52:381538 }
1539
avi7c6f35e2015-05-08 17:52:381540 // Since we weeded out "new" navigations above, we know this is an existing
1541 // (back/forward) navigation.
Charlie Reisc0f17d2d2021-01-12 18:52:491542 trace_return.set_return_reason("default return, existing entry");
1543 return NAVIGATION_TYPE_EXISTING_ENTRY;
avi7c6f35e2015-05-08 17:52:381544}
1545
Charlie Reisc0f17d2d2021-01-12 18:52:491546void NavigationControllerImpl::RendererDidNavigateToNewEntry(
creis3da03872015-02-20 21:12:321547 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071548 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361549 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441550 bool replace_entry,
Shivani Sharmaffb32b82019-04-09 16:58:471551 bool previous_document_was_activated,
Mohamed Abdelhalim833de902019-09-16 17:41:451552 NavigationRequest* request) {
dcheng9bfa5162016-04-09 01:00:571553 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181554 bool update_virtual_url = false;
1555
Anton Bikineevf62d1bf2021-05-15 17:56:071556 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:451557 request->common_params().initiator_origin;
Lukasz Anforowicz435bcb582019-07-12 20:50:061558
creisf49dfc92016-07-26 17:05:181559 // First check if this is an in-page navigation. If so, clone the current
1560 // entry instead of looking at the pending entry, because the pending entry
1561 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361562 if (is_same_document && GetLastCommittedEntry()) {
Patrick Monette50e8bd82019-06-13 22:40:451563 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:481564 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:081565 params.document_sequence_number, params.app_history_key,
1566 rfh->GetSiteInstance(), nullptr, params.url,
1567 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:091568 Referrer(*params.referrer), initiator_origin,
1569 request->GetRedirectChain(), params.page_state, params.method,
1570 params.post_id, nullptr /* blob_url_loader_factory */,
Antonio Sartori78a749f2020-11-30 12:03:391571 nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:481572 request->GetSubresourceWebBundleNavigationInfo(),
Antonio Sartori78a749f2020-11-30 12:03:391573 // We will set the document policies later in this function.
Titouan Rigoudy6ec70402021-02-02 15:42:191574 nullptr /* policy_container_policies */);
Charles Reisf44482022017-10-13 21:15:031575
creisf49dfc92016-07-26 17:05:181576 new_entry = GetLastCommittedEntry()->CloneAndReplace(
Harkiran Bolaria081c5c22021-09-13 08:44:531577 frame_entry, true, request->frame_tree_node(), frame_tree_.root());
jama78746e2017-02-22 17:21:571578 if (new_entry->GetURL().GetOrigin() != params.url.GetOrigin()) {
1579 // TODO(jam): we had one report of this with a URL that was redirecting to
1580 // only tildes. Until we understand that better, don't copy the cert in
1581 // this case.
1582 new_entry->GetSSL() = SSLStatus();
John Abd-El-Malek9cd697e2017-07-12 21:53:141583
John Abd-El-Malek380d3c5922017-09-08 00:20:311584 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121585 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141586 UMA_HISTOGRAM_BOOLEAN(
1587 "Navigation.SecureSchemeHasSSLStatus.NewPageInPageOriginMismatch",
1588 !!new_entry->GetSSL().certificate);
1589 }
jama78746e2017-02-22 17:21:571590 }
creisf49dfc92016-07-26 17:05:181591
Patrick Monette50e8bd82019-06-13 22:40:451592 // It is expected that |frame_entry| is now owned by |new_entry|. This means
1593 // that |frame_entry| should now have a reference count of exactly 2: one
1594 // due to the local variable |frame_entry|, and another due to |new_entry|
1595 // also retaining one. This should never fail, because it's the main frame.
1596 CHECK(!frame_entry->HasOneRef() && frame_entry->HasAtLeastOneRef());
creisf49dfc92016-07-26 17:05:181597
1598 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malek9cd697e2017-07-12 21:53:141599
John Abd-El-Malek380d3c5922017-09-08 00:20:311600 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121601 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141602 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.NewPageInPage",
1603 !!new_entry->GetSSL().certificate);
1604 }
creisf49dfc92016-07-26 17:05:181605 }
1606
Harkiran Bolaria59290d62021-03-17 01:53:011607 // If this is an activation navigation from a prerendered page, transfer the
1608 // new entry from an entry already created and stored in the
1609 // NavigationRequest. |new_entry| will not have been set prior to this as
1610 // |is_same_document| is mutually exclusive with
1611 // |IsPrerenderedPageActivation|.
1612 if (request->IsPrerenderedPageActivation()) {
1613 DCHECK(!is_same_document);
1614 DCHECK(!new_entry);
1615 new_entry = request->TakePrerenderNavigationEntry();
1616 DCHECK(new_entry);
1617 }
1618
Charlie Reisc0f17d2d2021-01-12 18:52:491619 // Only make a copy of the pending entry if it is appropriate for the new
1620 // document that just loaded. Verify this by checking if the entry corresponds
Mohamed Abdelhalim833de902019-09-16 17:41:451621 // to the given NavigationRequest. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041622 // 1. The SiteInstance hasn't been assigned to something else.
1623 // 2. The pending entry was intended as a new entry, rather than being a
1624 // history navigation that was interrupted by an unrelated,
1625 // renderer-initiated navigation.
1626 // TODO(csharrison): Investigate whether we can remove some of the coarser
1627 // checks.
Mohamed Abdelhalim833de902019-09-16 17:41:451628 if (!new_entry && PendingEntryMatchesRequest(request) &&
1629 pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341630 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431631 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351632 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431633
[email protected]f1eb87a2011-05-06 17:49:411634 update_virtual_url = new_entry->update_virtual_url_with_url();
Camille Lamy62b826012019-02-26 09:15:471635 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451636 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
John Abd-El-Malek9cd697e2017-07-12 21:53:141637
John Abd-El-Malek380d3c5922017-09-08 00:20:311638 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121639 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141640 UMA_HISTOGRAM_BOOLEAN(
1641 "Navigation.SecureSchemeHasSSLStatus.NewPagePendingEntryMatches",
1642 !!new_entry->GetSSL().certificate);
1643 }
creisf49dfc92016-07-26 17:05:181644 }
1645
Charlie Reisc0f17d2d2021-01-12 18:52:491646 // For cross-document commits with no matching pending entry, create a new
1647 // entry.
creisf49dfc92016-07-26 17:05:181648 if (!new_entry) {
Lukasz Anforowicz435bcb582019-07-12 20:50:061649 new_entry = std::make_unique<NavigationEntryImpl>(
arthursonzogni73fe3212020-11-17 13:24:071650 rfh->GetSiteInstance(), params.url, Referrer(*params.referrer),
1651 initiator_origin,
Jan Wilken Dörrieaace0cfef2021-03-11 22:01:581652 std::u16string(), // title
Mohamed Abdelhalim833de902019-09-16 17:41:451653 params.transition, request->IsRendererInitiated(),
Lukasz Anforowicz435bcb582019-07-12 20:50:061654 nullptr); // blob_url_loader_factory
[email protected]f8f93eb2012-09-25 03:06:241655
1656 // Find out whether the new entry needs to update its virtual URL on URL
1657 // change and set up the entry accordingly. This is needed to correctly
1658 // update the virtual URL when replaceState is called after a pushState.
1659 GURL url = params.url;
1660 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431661 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1662 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241663 new_entry->set_update_virtual_url_with_url(needs_update);
1664
Charlie Reisc0f17d2d2021-01-12 18:52:491665 // When navigating to a new entry, give the browser URL handler a chance to
[email protected]f1eb87a2011-05-06 17:49:411666 // update the virtual URL based on the new URL. For example, this is needed
1667 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1668 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241669 update_virtual_url = needs_update;
Camille Lamy62b826012019-02-26 09:15:471670 new_entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451671 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
John Abd-El-Malek9cd697e2017-07-12 21:53:141672
John Abd-El-Malek380d3c5922017-09-08 00:20:311673 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121674 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141675 UMA_HISTOGRAM_BOOLEAN(
1676 "Navigation.SecureSchemeHasSSLStatus.NewPageNoMatchingEntry",
1677 !!new_entry->GetSSL().certificate);
1678 }
[email protected]e9ba4472008-09-14 15:42:431679 }
1680
Harkiran Bolaria59290d62021-03-17 01:53:011681 // TODO(crbug.com/1179428) - determine which parts of the entry need to be set
1682 // for prerendered contents, if any. This is because prerendering/activation
1683 // technically won't be creating a new document. Unlike BFCache, prerendering
1684 // creates a new NavigationEntry rather than using an existing one.
1685 if (!request->IsPrerenderedPageActivation()) {
1686 // Don't use the page type from the pending entry. Some interstitial page
1687 // may have set the type to interstitial. Once we commit, however, the page
1688 // type must always be normal or error.
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121689 new_entry->set_page_type(request->DidEncounterError() ? PAGE_TYPE_ERROR
1690 : PAGE_TYPE_NORMAL);
Harkiran Bolaria59290d62021-03-17 01:53:011691 new_entry->SetURL(params.url);
1692 if (update_virtual_url)
1693 UpdateVirtualURLToURL(new_entry.get(), params.url);
1694 new_entry->SetReferrer(Referrer(*params.referrer));
1695 new_entry->SetTransitionType(params.transition);
1696 new_entry->set_site_instance(
1697 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
1698 new_entry->SetOriginalRequestURL(request->GetOriginalRequestURL());
Rakina Zata Amnib597d632020-12-01 00:56:001699
Antonio Sartori4f5373792021-05-31 10:56:471700 DCHECK_EQ(rfh->is_overriding_user_agent(), params.is_overriding_user_agent);
Harkiran Bolaria59290d62021-03-17 01:53:011701 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431702
Harkiran Bolaria59290d62021-03-17 01:53:011703 // Update the FrameNavigationEntry for new main frame commits.
1704 FrameNavigationEntry* frame_entry =
1705 new_entry->GetFrameEntry(rfh->frame_tree_node());
1706 frame_entry->set_frame_unique_name(rfh->frame_tree_node()->unique_name());
1707 frame_entry->set_item_sequence_number(params.item_sequence_number);
1708 frame_entry->set_document_sequence_number(params.document_sequence_number);
Nate Chapinfbfe5af2021-06-10 17:22:081709 frame_entry->set_app_history_key(params.app_history_key);
Harkiran Bolaria59290d62021-03-17 01:53:011710 frame_entry->set_redirect_chain(request->GetRedirectChain());
1711 frame_entry->SetPageState(params.page_state);
1712 frame_entry->set_method(params.method);
1713 frame_entry->set_post_id(params.post_id);
1714 frame_entry->set_policy_container_policies(
1715 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
1716 request));
Antonio Sartori78a749f2020-11-30 12:03:391717
Anton Bikineevf62d1bf2021-05-15 17:56:071718 if (absl::optional<url::Origin> committed_origin =
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121719 GetCommittedOriginForFrameEntry(params, request)) {
1720 if (committed_origin.has_value())
1721 frame_entry->set_committed_origin(committed_origin.value());
1722 }
Harkiran Bolaria59290d62021-03-17 01:53:011723 if (request->web_bundle_navigation_info()) {
1724 frame_entry->set_web_bundle_navigation_info(
1725 request->web_bundle_navigation_info()->Clone());
1726 }
creis8b5cd4c2015-06-19 00:11:081727
Harkiran Bolaria59290d62021-03-17 01:53:011728 // history.pushState() is classified as a navigation to a new page, but sets
1729 // is_same_document to true. In this case, we already have the title and
1730 // favicon available, so set them immediately.
1731 if (is_same_document && GetLastCommittedEntry()) {
1732 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
1733 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1734 }
[email protected]3a868f212014-08-09 10:41:191735 }
[email protected]ff64b3e2014-05-31 04:07:331736
[email protected]60d6cca2013-04-30 08:47:131737 DCHECK(!params.history_list_was_cleared || !replace_entry);
1738 // The browser requested to clear the session history when it initiated the
1739 // navigation. Now we know that the renderer has updated its state accordingly
1740 // and it is safe to also clear the browser side history.
1741 if (params.history_list_was_cleared) {
arthursonzogni69a6a1b2019-09-17 09:23:001742 DiscardNonCommittedEntries();
[email protected]60d6cca2013-04-30 08:47:131743 entries_.clear();
1744 last_committed_entry_index_ = -1;
1745 }
1746
Nasko Oskovaee2f862018-06-15 00:05:521747 // If this is a new navigation with replacement and there is a
1748 // pending_entry_ which matches the navigation reported by the renderer
1749 // process, then it should be the one replaced, so update the
1750 // last_committed_entry_index_ to use it.
1751 if (replace_entry && pending_entry_index_ != -1 &&
Rakina Zata Amnif6950d552020-11-24 03:26:101752 pending_entry_->GetUniqueID() == request->commit_params().nav_entry_id) {
Nasko Oskovaee2f862018-06-15 00:05:521753 last_committed_entry_index_ = pending_entry_index_;
1754 }
1755
Alexander Timine3ec4192020-04-20 16:39:401756 SetShouldSkipOnBackForwardUIIfNeeded(
shivanigithube92c33da2020-09-14 13:01:411757 replace_entry, previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:401758 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
shivanisha41f04c52018-12-12 15:52:051759
Carlos IL42b416592019-10-07 23:10:361760 InsertOrReplaceEntry(std::move(new_entry), replace_entry,
1761 !request->post_commit_error_page_html().empty());
[email protected]e9ba4472008-09-14 15:42:431762}
1763
Charlie Reisc0f17d2d2021-01-12 18:52:491764void NavigationControllerImpl::RendererDidNavigateToExistingEntry(
creis3da03872015-02-20 21:12:321765 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071766 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361767 bool is_same_document,
jam48cea9082017-02-15 06:13:291768 bool was_restored,
Mohamed Abdelhalim833de902019-09-16 17:41:451769 NavigationRequest* request,
Peter Boströmd7592132019-01-30 04:50:311770 bool keep_pending_entry) {
creis26d22632017-04-21 20:23:561771 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1772 << "that a last committed entry exists.";
1773
[email protected]e9ba4472008-09-14 15:42:431774 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001775 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431776
Charlie Reis7e2cb6d2021-01-26 01:27:161777 NavigationEntryImpl* entry = nullptr;
Rakina Zata Amni153d5702021-09-13 22:48:001778 if (request->commit_params().intended_as_new_entry) {
Charlie Reis7e2cb6d2021-01-26 01:27:161779 // We're guaranteed to have a last committed entry if intended_as_new_entry
1780 // is true.
avicbdc4c12015-07-01 16:07:111781 entry = GetLastCommittedEntry();
Charlie Reis7e2cb6d2021-01-26 01:27:161782 DCHECK(entry);
1783
1784 // If the NavigationRequest matches a new pending entry and is classified as
1785 // EXISTING_ENTRY, then it is a navigation to the same URL that was
1786 // converted to a reload, such as a user pressing enter in the omnibox.
1787 if (pending_entry_ && pending_entry_index_ == -1 &&
1788 pending_entry_->GetUniqueID() ==
1789 request->commit_params().nav_entry_id) {
1790 // Note: The pending entry will usually have a real ReloadType here, but
1791 // it can still be ReloadType::NONE in cases that
1792 // ShouldTreatNavigationAsReload returns false (e.g., POST, view-source).
1793
1794 // If we classified this correctly, the SiteInstance should not have
1795 // changed.
1796 CHECK_EQ(entry->site_instance(), rfh->GetSiteInstance());
1797
1798 // For converted reloads, we assign the entry's unique ID to be that of
1799 // the new one. Since this is always the result of a user action, we want
1800 // to dismiss infobars, etc. like a regular user-initiated navigation.
1801 entry->set_unique_id(pending_entry_->GetUniqueID());
1802
1803 // The extra headers may have changed due to reloading with different
1804 // headers.
1805 entry->set_extra_headers(pending_entry_->extra_headers());
1806 }
1807 // Otherwise, this was intended as a new entry but the pending entry was
1808 // lost in the meantime and no new entry was created. We are stuck at the
1809 // last committed entry.
1810
1811 // Even if this is a converted reload from pressing enter in the omnibox,
1812 // the server could redirect, requiring an update to the SSL status. If this
1813 // is a same document navigation, though, there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:451814 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
Charlie Reis7e2cb6d2021-01-26 01:27:161815 if (!is_same_document) {
Camille Lamy62b826012019-02-26 09:15:471816 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451817 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
Charlie Reis7e2cb6d2021-01-26 01:27:161818 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141819
Charlie Reis7e2cb6d2021-01-26 01:27:161820 if (params.url.SchemeIs(url::kHttpsScheme) &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121821 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141822 bool has_cert = !!entry->GetSSL().certificate;
1823 if (is_same_document) {
1824 UMA_HISTOGRAM_BOOLEAN(
1825 "Navigation.SecureSchemeHasSSLStatus."
1826 "ExistingPageSameDocumentIntendedAsNew",
1827 has_cert);
1828 } else {
1829 UMA_HISTOGRAM_BOOLEAN(
1830 "Navigation.SecureSchemeHasSSLStatus."
1831 "ExistingPageDifferentDocumentIntendedAsNew",
1832 has_cert);
1833 }
1834 }
Rakina Zata Amnif6950d552020-11-24 03:26:101835 } else if (const int nav_entry_id = request->commit_params().nav_entry_id) {
avicbdc4c12015-07-01 16:07:111836 // This is a browser-initiated navigation (back/forward/reload).
Rakina Zata Amnif6950d552020-11-24 03:26:101837 entry = GetEntryWithUniqueID(nav_entry_id);
jamd208b902016-09-01 16:58:161838
eugenebut604866f2017-05-10 21:35:361839 if (is_same_document) {
Mohamed Abdelhalim833de902019-09-16 17:41:451840 // There's no SSLStatus in the NavigationRequest for same document
eugenebut604866f2017-05-10 21:35:361841 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
1842 // this was a restored same document navigation entry, then it won't have
1843 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
1844 // navigated it.
jam48cea9082017-02-15 06:13:291845 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
1846 if (entry->GetURL().GetOrigin() == last_entry->GetURL().GetOrigin() &&
1847 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
1848 was_restored) {
1849 entry->GetSSL() = last_entry->GetSSL();
1850 }
1851 } else {
Mohamed Abdelhalim833de902019-09-16 17:41:451852 // In rapid back/forward navigations |request| sometimes won't have a cert
1853 // (http://crbug.com/727892). So we use the request's cert if it exists,
John Abd-El-Malek3f247082017-12-07 19:02:191854 // otherwise we only reuse the existing cert if the origins match.
Mohamed Abdelhalim833de902019-09-16 17:41:451855 if (request->GetSSLInfo().has_value() &&
1856 request->GetSSLInfo()->is_valid()) {
1857 entry->GetSSL() = SSLStatus(*(request->GetSSLInfo()));
1858 } else if (entry->GetURL().GetOrigin() != request->GetURL().GetOrigin()) {
John Abd-El-Malek3f247082017-12-07 19:02:191859 entry->GetSSL() = SSLStatus();
1860 }
jam48cea9082017-02-15 06:13:291861 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141862
John Abd-El-Malek380d3c5922017-09-08 00:20:311863 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121864 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141865 bool has_cert = !!entry->GetSSL().certificate;
1866 if (is_same_document && was_restored) {
1867 UMA_HISTOGRAM_BOOLEAN(
1868 "Navigation.SecureSchemeHasSSLStatus."
1869 "ExistingPageSameDocumentRestoredBrowserInitiated",
1870 has_cert);
1871 } else if (is_same_document && !was_restored) {
1872 UMA_HISTOGRAM_BOOLEAN(
1873 "Navigation.SecureSchemeHasSSLStatus."
1874 "ExistingPageSameDocumentBrowserInitiated",
1875 has_cert);
1876 } else if (!is_same_document && was_restored) {
1877 UMA_HISTOGRAM_BOOLEAN(
1878 "Navigation.SecureSchemeHasSSLStatus."
1879 "ExistingPageRestoredBrowserInitiated",
1880 has_cert);
1881 } else {
1882 UMA_HISTOGRAM_BOOLEAN(
1883 "Navigation.SecureSchemeHasSSLStatus.ExistingPageBrowserInitiated",
1884 has_cert);
1885 }
1886 }
avicbdc4c12015-07-01 16:07:111887 } else {
1888 // This is renderer-initiated. The only kinds of renderer-initated
Rakina Zata Amni557afb92021-07-17 04:39:571889 // navigations that are EXISTING_ENTRY are same-document navigations that
1890 // result in replacement (e.g. history.replaceState(), location.replace(),
1891 // forced replacements for trivial session history contexts). For these
1892 // cases, we reuse the last committed entry.
avicbdc4c12015-07-01 16:07:111893 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101894
Mikel Astizba9cf2fd2017-12-17 10:38:101895 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
1896 // to avoid misleading interpretations (e.g. URLs paired with
1897 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
1898 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
1899 // | PAGE_TRANSITION_CLIENT_REDIRECT).
1900
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571901 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(entry, entry);
Mikel Astizba9cf2fd2017-12-17 10:38:101902
eugenebut604866f2017-05-10 21:35:361903 // If this is a same document navigation, then there's no SSLStatus in the
Mohamed Abdelhalim833de902019-09-16 17:41:451904 // NavigationRequest so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361905 if (!is_same_document)
Camille Lamy62b826012019-02-26 09:15:471906 entry->GetSSL() =
Mohamed Abdelhalim833de902019-09-16 17:41:451907 SSLStatus(request->GetSSLInfo().value_or(net::SSLInfo()));
John Abd-El-Malek9cd697e2017-07-12 21:53:141908
John Abd-El-Malek380d3c5922017-09-08 00:20:311909 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121910 !request->DidEncounterError()) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141911 bool has_cert = !!entry->GetSSL().certificate;
1912 if (is_same_document) {
1913 UMA_HISTOGRAM_BOOLEAN(
1914 "Navigation.SecureSchemeHasSSLStatus."
1915 "ExistingPageSameDocumentRendererInitiated",
1916 has_cert);
1917 } else {
1918 UMA_HISTOGRAM_BOOLEAN(
1919 "Navigation.SecureSchemeHasSSLStatus."
1920 "ExistingPageDifferentDocumentRendererInitiated",
1921 has_cert);
1922 }
1923 }
avicbdc4c12015-07-01 16:07:111924 }
1925 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431926
[email protected]5ccd4dc2012-10-24 02:28:141927 // The URL may have changed due to redirects.
Rakina Zata Amni3a1c0ec2021-04-15 03:35:121928 entry->set_page_type(request->DidEncounterError() ? PAGE_TYPE_ERROR
1929 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041930 entry->SetURL(params.url);
arthursonzogni73fe3212020-11-17 13:24:071931 entry->SetReferrer(Referrer(*params.referrer));
[email protected]38178a42009-12-17 18:58:321932 if (entry->update_virtual_url_with_url())
1933 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141934
jam015ba062017-01-06 21:17:001935 // The site instance will normally be the same except
1936 // 1) session restore, when no site instance will be assigned or
1937 // 2) redirect, when the site instance is reset.
Lei Zhang96031532019-10-10 19:05:471938 DCHECK(!entry->site_instance() || !entry->GetRedirectChain().empty() ||
naskoaf182192016-08-11 02:12:011939 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431940
naskoaf182192016-08-11 02:12:011941 // Update the existing FrameNavigationEntry to ensure all of its members
1942 // reflect the parameters coming from the renderer process.
Anton Bikineevf62d1bf2021-05-15 17:56:071943 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:451944 request->common_params().initiator_origin;
naskoaf182192016-08-11 02:12:011945 entry->AddOrUpdateFrameEntry(
Nate Chapin9f169072021-06-09 19:32:371946 rfh->frame_tree_node(), NavigationEntryImpl::UpdatePolicy::kUpdate,
1947 params.item_sequence_number, params.document_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:081948 params.app_history_key, rfh->GetSiteInstance(), nullptr, params.url,
Nate Chapin9f169072021-06-09 19:32:371949 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:091950 Referrer(*params.referrer), initiator_origin, request->GetRedirectChain(),
arthursonzogni73fe3212020-11-17 13:24:071951 params.page_state, params.method, params.post_id,
1952 nullptr /* blob_url_loader_factory */,
Tsuyoshi Horo0c605782020-05-27 00:21:031953 request->web_bundle_navigation_info()
1954 ? request->web_bundle_navigation_info()->Clone()
Antonio Sartori78a749f2020-11-30 12:03:391955 : nullptr,
Kunihiko Sakamoto346a74e2021-03-10 08:57:481956 request->GetSubresourceWebBundleNavigationInfo(),
Titouan Rigoudy6ec70402021-02-02 15:42:191957 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
1958 request));
creis22a7b4c2016-04-28 07:20:301959
[email protected]5ccd4dc2012-10-24 02:28:141960 // The redirected to page should not inherit the favicon from the previous
1961 // page.
eugenebut604866f2017-05-10 21:35:361962 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:481963 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141964
Peter Boströmd7592132019-01-30 04:50:311965 // We should also usually discard the pending entry if it corresponds to a
1966 // different navigation, since that one is now likely canceled. In rare
1967 // cases, we leave the pending entry for another navigation in place when we
1968 // know it is still ongoing, to avoid a flicker in the omnibox (see
1969 // https://crbug.com/900036).
[email protected]e9ba4472008-09-14 15:42:431970 //
1971 // Note that we need to use the "internal" version since we don't want to
1972 // actually change any other state, just kill the pointer.
Peter Boströmd7592132019-01-30 04:50:311973 if (!keep_pending_entry)
arthursonzogni69a6a1b2019-09-17 09:23:001974 DiscardNonCommittedEntries();
[email protected]40bcc302009-03-02 20:50:391975
Carlos IL4dea8902020-05-26 15:14:291976 // Update the last committed index to reflect the committed entry.
avicbdc4c12015-07-01 16:07:111977 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431978}
1979
[email protected]d202a7c2012-01-04 07:53:471980void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321981 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:071982 const mojom::DidCommitProvisionalLoadParams& params,
eugenebut604866f2017-05-10 21:35:361983 bool is_same_document,
Shivani Sharmaffb32b82019-04-09 16:58:471984 bool replace_entry,
1985 bool previous_document_was_activated,
Mohamed Abdelhalim833de902019-09-16 17:41:451986 NavigationRequest* request) {
avi25f5f9e2015-07-17 20:08:261987 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1988 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111989
[email protected]e9ba4472008-09-14 15:42:431990 // Manual subframe navigations just get the current entry cloned so the user
1991 // can go back or forward to it. The actual subframe information will be
1992 // stored in the page state for each of those entries. This happens out of
1993 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091994 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1995 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381996
Mikel Astizba9cf2fd2017-12-17 10:38:101997 // The DCHECK below documents the fact that we don't know of any situation
1998 // where |replace_entry| is true for subframe navigations. This simplifies
1999 // reasoning about the replacement struct for subframes (see
2000 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
2001 DCHECK(!replace_entry);
2002
Patrick Monette50e8bd82019-06-13 22:40:452003 // This FrameNavigationEntry might not end up being used in the
2004 // CloneAndReplace() call below, if a spot can't be found for it in the tree.
Anton Bikineevf62d1bf2021-05-15 17:56:072005 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:452006 request->common_params().initiator_origin;
Patrick Monette50e8bd82019-06-13 22:40:452007 auto frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Charles Reisd2a509f2017-09-27 23:47:482008 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:082009 params.document_sequence_number, params.app_history_key,
2010 rfh->GetSiteInstance(), nullptr, params.url,
2011 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:092012 Referrer(*params.referrer), initiator_origin, request->GetRedirectChain(),
arthursonzogni73fe3212020-11-17 13:24:072013 params.page_state, params.method, params.post_id,
2014 nullptr /* blob_url_loader_factory */,
Tsuyoshi Horo0c605782020-05-27 00:21:032015 request->web_bundle_navigation_info()
2016 ? request->web_bundle_navigation_info()->Clone()
Antonio Sartori78a749f2020-11-30 12:03:392017 : nullptr,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482018 request->GetSubresourceWebBundleNavigationInfo(),
Titouan Rigoudy6ec70402021-02-02 15:42:192019 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
2020 request));
Charles Reisf44482022017-10-13 21:15:032021
creisce0ef3572017-01-26 17:53:082022 std::unique_ptr<NavigationEntryImpl> new_entry =
2023 GetLastCommittedEntry()->CloneAndReplace(
Patrick Monette50e8bd82019-06-13 22:40:452024 std::move(frame_entry), is_same_document, rfh->frame_tree_node(),
Carlos Caballero40b0efd2021-01-26 11:55:002025 frame_tree_.root());
creise062d542015-08-25 02:01:552026
Alexander Timine3ec4192020-04-20 16:39:402027 SetShouldSkipOnBackForwardUIIfNeeded(
shivanigithube92c33da2020-09-14 13:01:412028 replace_entry, previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:402029 request->IsRendererInitiated(), request->GetPreviousPageUkmSourceId());
Shivani Sharmaffb32b82019-04-09 16:58:472030
creisce0ef3572017-01-26 17:53:082031 // TODO(creis): Update this to add the frame_entry if we can't find the one
Patrick Monette50e8bd82019-06-13 22:40:452032 // to replace, which can happen due to a unique name change. See
2033 // https://crbug.com/607205. For now, the call to CloneAndReplace() will
2034 // delete the |frame_entry| when the function exits if it doesn't get used.
creis96fc55082015-06-13 06:42:382035
Carlos IL42b416592019-10-07 23:10:362036 InsertOrReplaceEntry(std::move(new_entry), replace_entry, false);
[email protected]e9ba4472008-09-14 15:42:432037}
2038
[email protected]d202a7c2012-01-04 07:53:472039bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:322040 RenderFrameHostImpl* rfh,
arthursonzogni73fe3212020-11-17 13:24:072041 const mojom::DidCommitProvisionalLoadParams& params,
Antonio Sartori78a749f2020-11-30 12:03:392042 bool is_same_document,
Nate Chapinc7019dd7d2021-06-25 18:29:252043 bool was_on_initial_empty_document,
Mohamed Abdelhalim833de902019-09-16 17:41:452044 NavigationRequest* request) {
avi9f07a0c2015-02-18 22:51:292045 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
2046 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
2047
[email protected]e9ba4472008-09-14 15:42:432048 // We're guaranteed to have a previously committed entry, and we now need to
2049 // handle navigation inside of a subframe in it without creating a new entry.
2050 DCHECK(GetLastCommittedEntry());
2051
creis913c63ce2016-07-16 19:52:522052 // For newly created subframes, we don't need to send a commit notification.
2053 // This is only necessary for history navigations in subframes.
2054 bool send_commit_notification = false;
2055
Rakina Zata Amnif6950d552020-11-24 03:26:102056 // If |nav_entry_id| is non-zero and matches an existing entry, this
2057 // is a history navigation. Update the last committed index accordingly. If
2058 // we don't recognize the |nav_entry_id|, it might be a recently
2059 // pruned entry. We'll handle it below.
2060 if (const int nav_entry_id = request->commit_params().nav_entry_id) {
2061 int entry_index = GetEntryIndexWithUniqueID(nav_entry_id);
creis3cdc3b02015-05-29 23:00:472062 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:062063 // Make sure that a subframe commit isn't changing the main frame's
2064 // origin. Otherwise the renderer process may be confused, leading to a
2065 // URL spoof. We can't check the path since that may change
2066 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:572067 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
2068 // about:blank, file, and unique origins are more subtle to get right.
Charlie Reis95fbca442021-05-21 21:38:242069 // We should use checks similar to RenderFrameHostImpl's
2070 // CanCommitUrlAndOrigin on the main frame during subframe commits.
2071 // See https://crbug.com/1209092.
creis37988b92016-06-10 18:03:572072 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
2073 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
2074 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
2075 dest_top_url.SchemeIsHTTPOrHTTPS() &&
2076 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:512077 bad_message::ReceivedBadMessage(rfh->GetProcess(),
2078 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:062079 }
creis3cdc3b02015-05-29 23:00:472080
creis913c63ce2016-07-16 19:52:522081 // We only need to discard the pending entry in this history navigation
2082 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:062083 last_committed_entry_index_ = entry_index;
arthursonzogni69a6a1b2019-09-17 09:23:002084 DiscardNonCommittedEntries();
creis913c63ce2016-07-16 19:52:522085
2086 // History navigations should send a commit notification.
2087 send_commit_notification = true;
avi98405c22015-05-21 20:47:062088 }
[email protected]e9ba4472008-09-14 15:42:432089 }
[email protected]f233e4232013-02-23 00:55:142090
creisce0ef3572017-01-26 17:53:082091 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
2092 // it may be a "history auto" case where we update an existing one.
2093 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
Nate Chapin9f169072021-06-09 19:32:372094
2095 // We may want to update |last_committed|'s FrameNavigationEntry (if one
2096 // exists), or we may want to clobber it and create a new one. We update in
2097 // cases where the corresponding FrameNavigationEntry is conceptually similar
2098 // to the document described by the commit params: same-document
2099 // navigations, history traversal to an existing entry, and reloads (including
2100 // a "soft reload" where we navigate to the same url without flagging it as a
2101 // reload). But in the case of a different document that is not logically
2102 // related to the committed FrameNavigationEntry's document (cross-document,
2103 // not same url, not a reload, not a history traversal), we replace rather
2104 // than update.
Nate Chapinc7019dd7d2021-06-25 18:29:252105 //
Nate Chapin9f169072021-06-09 19:32:372106 // In the case where we update, the FrameNavigationEntry will potentially be
2107 // shared across multiple NavigationEntries, and any updates will be reflected
2108 // in all of those NavigationEntries. In the replace case, any existing
2109 // sharing with other NavigationEntries will stop.
Nate Chapinc7019dd7d2021-06-25 18:29:252110 //
2111 // When navigating away from the initial empty document, we also update rather
2112 // than replace. Either update or replace will overwrite the initial empty
2113 // document state for |last_committed|, but if the FrameNavigationEntry for
2114 // the initial empty document is shared across multiple NavigationEntries (due
2115 // to a navigation in another frame), we want to make sure we overwrite the
2116 // initial empty document state everywhere this FrameNavigationEntry is used,
2117 // which is accompished by updating the existing FrameNavigationEntry.
Nate Chapin9f169072021-06-09 19:32:372118 FrameNavigationEntry* last_committed_frame_entry =
2119 last_committed->GetFrameEntry(rfh->frame_tree_node());
2120 NavigationEntryImpl::UpdatePolicy update_policy =
2121 NavigationEntryImpl::UpdatePolicy::kUpdate;
2122 if (request->common_params().navigation_type ==
Minggang Wangb9f3fa92021-07-01 15:30:312123 blink::mojom::NavigationType::DIFFERENT_DOCUMENT &&
Nate Chapin9f169072021-06-09 19:32:372124 last_committed_frame_entry &&
Nate Chapinc7019dd7d2021-06-25 18:29:252125 last_committed_frame_entry->url() != params.url &&
2126 !was_on_initial_empty_document) {
Nate Chapin9f169072021-06-09 19:32:372127 update_policy = NavigationEntryImpl::UpdatePolicy::kReplace;
2128 }
2129
Anton Bikineevf62d1bf2021-05-15 17:56:072130 const absl::optional<url::Origin>& initiator_origin =
Mohamed Abdelhalim833de902019-09-16 17:41:452131 request->common_params().initiator_origin;
creisce0ef3572017-01-26 17:53:082132 last_committed->AddOrUpdateFrameEntry(
Nate Chapin9f169072021-06-09 19:32:372133 rfh->frame_tree_node(), update_policy, params.item_sequence_number,
Nate Chapinfbfe5af2021-06-10 17:22:082134 params.document_sequence_number, params.app_history_key,
2135 rfh->GetSiteInstance(), nullptr, params.url,
2136 GetCommittedOriginForFrameEntry(params, request),
Rakina Zata Amni82fafba2021-03-11 07:07:092137 Referrer(*params.referrer), initiator_origin, request->GetRedirectChain(),
arthursonzogni73fe3212020-11-17 13:24:072138 params.page_state, params.method, params.post_id,
2139 nullptr /* blob_url_loader_factory */,
Tsuyoshi Horo0c605782020-05-27 00:21:032140 request->web_bundle_navigation_info()
2141 ? request->web_bundle_navigation_info()->Clone()
Antonio Sartori78a749f2020-11-30 12:03:392142 : nullptr,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482143 request->GetSubresourceWebBundleNavigationInfo(),
Titouan Rigoudy6ec70402021-02-02 15:42:192144 ComputePolicyContainerPoliciesForFrameEntry(rfh, is_same_document,
2145 request));
creis625a0c7d2015-03-24 23:17:122146
creis913c63ce2016-07-16 19:52:522147 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:432148}
2149
[email protected]d202a7c2012-01-04 07:53:472150int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:232151 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:032152 for (size_t i = 0; i < entries_.size(); ++i) {
2153 if (entries_[i].get() == entry)
2154 return i;
2155 }
2156 return -1;
[email protected]765b35502008-08-21 00:51:202157}
2158
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572159void NavigationControllerImpl::CopyStateFrom(NavigationController* temp,
Francois Dorayeaace782017-06-21 16:37:242160 bool needs_reload) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572161 NavigationControllerImpl* source =
2162 static_cast<NavigationControllerImpl*>(temp);
[email protected]ce3fa3c2009-04-20 19:55:572163 // Verify that we look new.
Lei Zhang96031532019-10-10 19:05:472164 DCHECK_EQ(0, GetEntryCount());
2165 DCHECK(!GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:572166
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572167 if (source->GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:572168 return; // Nothing new to do.
2169
Francois Dorayeaace782017-06-21 16:37:242170 needs_reload_ = needs_reload;
Bo Liucdfa4b12018-11-06 00:21:442171 needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572172 InsertEntriesFrom(source, source->GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:572173
Fergal Dalya1d569972021-03-16 03:24:532174 for (auto& it : source->session_storage_namespace_map_) {
[email protected]fdac6ade2013-07-20 01:06:302175 SessionStorageNamespaceImpl* source_namespace =
Fergal Dalya1d569972021-03-16 03:24:532176 static_cast<SessionStorageNamespaceImpl*>(it.second.get());
2177 session_storage_namespace_map_[it.first] = source_namespace->Clone();
Aaron Colwellb731a0ae2021-03-19 19:14:472178 OnStoragePartitionIdAdded(it.first);
[email protected]fdac6ade2013-07-20 01:06:302179 }
[email protected]4e6419c2010-01-15 04:50:342180
Lukasz Anforowicz0de0f452020-12-02 19:57:152181 FinishRestore(source->last_committed_entry_index_, RestoreType::kRestored);
[email protected]ce3fa3c2009-04-20 19:55:572182}
2183
Aran Gilman37d11632019-10-08 23:07:152184void NavigationControllerImpl::CopyStateFromAndPrune(NavigationController* temp,
2185 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:162186 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012187 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:162188
[email protected]d202a7c2012-01-04 07:53:472189 NavigationControllerImpl* source =
2190 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:252191
avi2b177592014-12-10 02:08:022192 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:012193 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:252194
[email protected]474f8512013-05-31 22:31:162195 // We now have one entry, possibly with a new pending entry. Ensure that
2196 // adding the entries from source won't put us over the limit.
2197 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:572198 if (!replace_entry)
Shivani Sharmad8c8d652019-02-13 17:27:572199 source->PruneOldestSkippableEntryIfFull();
[email protected]944822b2012-03-02 20:57:252200
Carlos IL4dea8902020-05-26 15:14:292201 // Insert the entries from source. Ignore any pending entry, since it has not
2202 // committed in source.
[email protected]474f8512013-05-31 22:31:162203 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:252204 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:552205 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:252206 else
2207 max_source_index++;
[email protected]e78a6852013-12-13 08:08:572208
2209 // Ignore the source's current entry if merging with replacement.
2210 // TODO(davidben): This should preserve entries forward of the current
2211 // too. http://crbug.com/317872
2212 if (replace_entry && max_source_index > 0)
2213 max_source_index--;
2214
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572215 InsertEntriesFrom(source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:252216
2217 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:552218 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:142219
Hayato Ito2c8c08d02021-06-23 03:38:432220 BroadcastHistoryOffsetAndLength();
[email protected]e1cd5452010-08-26 18:03:252221}
2222
[email protected]79368982013-11-13 01:11:012223bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:162224 // If there is no last committed entry, we cannot prune. Even if there is a
2225 // pending entry, it may not commit, leaving this WebContents blank, despite
2226 // possibly giving it new entries via CopyStateFromAndPrune.
2227 if (last_committed_entry_index_ == -1)
2228 return false;
[email protected]9350602e2013-02-26 23:27:442229
[email protected]474f8512013-05-31 22:31:162230 // We cannot prune if there is a pending entry at an existing entry index.
2231 // It may not commit, so we have to keep the last committed entry, and thus
2232 // there is no sensible place to keep the pending entry. It is ok to have
2233 // a new pending entry, which can optionally commit as a new navigation.
2234 if (pending_entry_index_ != -1)
2235 return false;
2236
[email protected]474f8512013-05-31 22:31:162237 return true;
2238}
2239
[email protected]79368982013-11-13 01:11:012240void NavigationControllerImpl::PruneAllButLastCommitted() {
2241 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:162242
avi2b177592014-12-10 02:08:022243 DCHECK_EQ(0, last_committed_entry_index_);
2244 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:442245
Hayato Ito2c8c08d02021-06-23 03:38:432246 BroadcastHistoryOffsetAndLength();
[email protected]9350602e2013-02-26 23:27:442247}
2248
[email protected]79368982013-11-13 01:11:012249void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:162250 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:012251 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:262252
[email protected]474f8512013-05-31 22:31:162253 // Erase all entries but the last committed entry. There may still be a
2254 // new pending entry after this.
2255 entries_.erase(entries_.begin(),
2256 entries_.begin() + last_committed_entry_index_);
2257 entries_.erase(entries_.begin() + 1, entries_.end());
2258 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:262259}
2260
Christian Dullweber1af31e62018-02-22 11:49:482261void NavigationControllerImpl::DeleteNavigationEntries(
2262 const DeletionPredicate& deletionPredicate) {
2263 // It is up to callers to check the invariants before calling this.
2264 CHECK(CanPruneAllButLastCommitted());
2265 std::vector<int> delete_indices;
2266 for (size_t i = 0; i < entries_.size(); i++) {
2267 if (i != static_cast<size_t>(last_committed_entry_index_) &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572268 deletionPredicate.Run(entries_[i].get())) {
Christian Dullweber1af31e62018-02-22 11:49:482269 delete_indices.push_back(i);
2270 }
2271 }
2272 if (delete_indices.empty())
2273 return;
2274
2275 if (delete_indices.size() == GetEntryCount() - 1U) {
2276 PruneAllButLastCommitted();
2277 } else {
2278 // Do the deletion in reverse to preserve indices.
2279 for (auto it = delete_indices.rbegin(); it != delete_indices.rend(); ++it) {
2280 RemoveEntryAtIndex(*it);
2281 }
Hayato Ito2c8c08d02021-06-23 03:38:432282 BroadcastHistoryOffsetAndLength();
Christian Dullweber1af31e62018-02-22 11:49:482283 }
2284 delegate()->NotifyNavigationEntriesDeleted();
2285}
2286
Shivani Sharma883f5f32019-02-12 18:20:012287bool NavigationControllerImpl::IsEntryMarkedToBeSkipped(int index) {
2288 auto* entry = GetEntryAtIndex(index);
2289 return entry && entry->should_skip_on_back_forward_ui();
2290}
2291
Carlos Caballero35ce710c2019-09-19 10:59:452292BackForwardCacheImpl& NavigationControllerImpl::GetBackForwardCache() {
2293 return back_forward_cache_;
2294}
2295
clamy987a3752018-05-03 17:36:262296void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
2297 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
2298 // progress, since this will cause a use-after-free. (We only allow this
2299 // when the tab is being destroyed for shutdown, since it won't return to
2300 // NavigateToEntry in that case.) http://crbug.com/347742.
Takashi Toyoshimaea534ef22021-07-21 03:27:592301 CHECK(!in_navigate_to_pending_entry_ || frame_tree_.IsBeingDestroyed());
clamy987a3752018-05-03 17:36:262302
2303 if (was_failure && pending_entry_) {
2304 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
2305 } else {
2306 failed_pending_entry_id_ = 0;
2307 }
2308
2309 if (pending_entry_) {
2310 if (pending_entry_index_ == -1)
2311 delete pending_entry_;
2312 pending_entry_index_ = -1;
2313 pending_entry_ = nullptr;
2314 }
arthursonzogni66f711c2019-10-08 14:40:362315
2316 // Ensure any refs to the current pending entry are ignored if they get
2317 // deleted, by clearing the set of known refs. All future pending entries will
2318 // only be affected by new refs.
2319 pending_entry_refs_.clear();
clamy987a3752018-05-03 17:36:262320}
2321
2322void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
2323 if (pending_entry_)
2324 pending_entry_->set_ssl_error(error);
2325}
2326
Camille Lamy5193caa2018-10-12 11:59:422327#if defined(OS_ANDROID)
2328// static
2329bool NavigationControllerImpl::ValidateDataURLAsString(
2330 const scoped_refptr<const base::RefCountedString>& data_url_as_string) {
2331 if (!data_url_as_string)
2332 return false;
2333
2334 if (data_url_as_string->size() > kMaxLengthOfDataURLString)
2335 return false;
2336
2337 // The number of characters that is enough for validating a data: URI.
2338 // From the GURL's POV, the only important part here is scheme, it doesn't
2339 // check the actual content. Thus we can take only the prefix of the url, to
2340 // avoid unneeded copying of a potentially long string.
2341 const size_t kDataUriPrefixMaxLen = 64;
2342 GURL data_url(
2343 std::string(data_url_as_string->front_as<char>(),
2344 std::min(data_url_as_string->size(), kDataUriPrefixMaxLen)));
2345 if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
2346 return false;
2347
2348 return true;
2349}
2350#endif
2351
Shivani Sharma194877032019-03-07 17:52:472352void NavigationControllerImpl::NotifyUserActivation() {
2353 // When a user activation occurs, ensure that all adjacent entries for the
2354 // same document clear their skippable bit, so that the history manipulation
2355 // intervention does not apply to them.
2356 auto* last_committed_entry = GetLastCommittedEntry();
2357 if (!last_committed_entry)
2358 return;
Shivani Sharma194877032019-03-07 17:52:472359
shivanigithub99368382021-06-16 18:33:372360 if (base::FeatureList::IsEnabled(
2361 features::kDebugHistoryInterventionNoUserActivation)) {
2362 return;
2363 }
2364
Shivani Sharmac4cc8922019-04-18 03:11:172365 SetSkippableForSameDocumentEntries(GetLastCommittedEntryIndex(), false);
Shivani Sharma194877032019-03-07 17:52:472366}
2367
clamy987a3752018-05-03 17:36:262368bool NavigationControllerImpl::StartHistoryNavigationInNewSubframe(
2369 RenderFrameHostImpl* render_frame_host,
Julie Jeongeun Kimed2e5ba72019-09-12 10:14:172370 mojo::PendingAssociatedRemote<mojom::NavigationClient>* navigation_client) {
clamy987a3752018-05-03 17:36:262371 NavigationEntryImpl* entry =
2372 GetEntryWithUniqueID(render_frame_host->nav_entry_id());
2373 if (!entry)
2374 return false;
2375
2376 FrameNavigationEntry* frame_entry =
2377 entry->GetFrameEntry(render_frame_host->frame_tree_node());
2378 if (!frame_entry)
2379 return false;
2380
Camille Lamy5193caa2018-10-12 11:59:422381 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572382 render_frame_host->frame_tree_node(), entry, frame_entry,
clamyea99ea12018-05-28 13:54:232383 ReloadType::NONE, false /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:312384 true /* is_history_navigation_in_new_child */);
clamyea99ea12018-05-28 13:54:232385
2386 if (!request)
2387 return false;
2388
arthursonzognif046d4a2019-12-12 19:08:102389 request->SetNavigationClient(std::move(*navigation_client));
Arthur Hemery06173ce2019-05-29 12:11:412390
Lukasz Anforowicz9ee83c272020-12-01 20:14:052391 render_frame_host->frame_tree_node()->navigator().Navigate(std::move(request),
2392 ReloadType::NONE);
clamyea99ea12018-05-28 13:54:232393
2394 return true;
clamy987a3752018-05-03 17:36:262395}
2396
Tsuyoshi Horo52fd08e2020-07-07 07:03:452397bool NavigationControllerImpl::ReloadFrame(FrameTreeNode* frame_tree_node) {
2398 NavigationEntryImpl* entry = GetEntryAtIndex(GetCurrentEntryIndex());
2399 if (!entry)
2400 return false;
2401 FrameNavigationEntry* frame_entry = entry->GetFrameEntry(frame_tree_node);
2402 if (!frame_entry)
2403 return false;
John Abd-El-Malek5b669132020-07-14 01:04:142404 ReloadType reload_type = ReloadType::NORMAL;
2405 entry->set_reload_type(reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452406 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
John Abd-El-Malek5b669132020-07-14 01:04:142407 frame_tree_node, entry, frame_entry, reload_type,
Tsuyoshi Horo52fd08e2020-07-07 07:03:452408 false /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:312409 false /* is_history_navigation_in_new_child */);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452410 if (!request)
2411 return false;
Lukasz Anforowicz9ee83c272020-12-01 20:14:052412 frame_tree_node->navigator().Navigate(std::move(request), reload_type);
Tsuyoshi Horo52fd08e2020-07-07 07:03:452413 return true;
2414}
2415
Dave Tapuska8bfd84c2019-03-26 20:47:162416void NavigationControllerImpl::GoToOffsetInSandboxedFrame(
2417 int offset,
2418 int sandbox_frame_tree_node_id) {
2419 if (!CanGoToOffset(offset))
2420 return;
Kush Sinhaa8856ecb2021-09-01 14:28:312421 GoToIndex(GetIndexForOffset(offset), sandbox_frame_tree_node_id);
Dave Tapuska8bfd84c2019-03-26 20:47:162422}
2423
clamy987a3752018-05-03 17:36:262424void NavigationControllerImpl::NavigateFromFrameProxy(
2425 RenderFrameHostImpl* render_frame_host,
2426 const GURL& url,
Chris Hamilton83272dc2021-02-23 00:24:022427 const blink::LocalFrameToken* initiator_frame_token,
Antonio Sartori9a82f6f32020-12-14 09:22:452428 int initiator_process_id,
Anton Bikineevf62d1bf2021-05-15 17:56:072429 const absl::optional<url::Origin>& initiator_origin,
clamy987a3752018-05-03 17:36:262430 bool is_renderer_initiated,
2431 SiteInstance* source_site_instance,
2432 const Referrer& referrer,
2433 ui::PageTransition page_transition,
2434 bool should_replace_current_entry,
Yeunjoo Choi3df791a2021-02-17 07:07:252435 blink::NavigationDownloadPolicy download_policy,
clamy987a3752018-05-03 17:36:262436 const std::string& method,
2437 scoped_refptr<network::ResourceRequestBody> post_body,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092438 const std::string& extra_headers,
Antonio Sartori2f763d9d2021-04-21 10:04:142439 network::mojom::SourceLocationPtr source_location,
John Delaney50425f82020-04-07 16:26:212440 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory,
Anton Bikineevf62d1bf2021-05-15 17:56:072441 const absl::optional<blink::Impression>& impression) {
Lukasz Anforowicz63f3b9432019-05-30 05:42:582442 if (is_renderer_initiated)
2443 DCHECK(initiator_origin.has_value());
2444
clamy987a3752018-05-03 17:36:262445 FrameTreeNode* node = render_frame_host->frame_tree_node();
Nasko Oskov18006bc2018-12-06 02:53:582446
Rakina Zata Amni66992a82020-06-24 03:57:522447 // Don't allow an entry replacement if there is no entry to replace.
2448 // http://crbug.com/457149
2449 if (GetEntryCount() == 0)
2450 should_replace_current_entry = false;
2451
clamy987a3752018-05-03 17:36:262452 // Create a NavigationEntry for the transfer, without making it the pending
2453 // entry. Subframe transfers should have a clone of the last committed entry
2454 // with a FrameNavigationEntry for the target frame. Main frame transfers
2455 // should have a new NavigationEntry.
2456 // TODO(creis): Make this unnecessary by creating (and validating) the params
2457 // directly, passing them to the destination RenderFrameHost. See
2458 // https://crbug.com/536906.
2459 std::unique_ptr<NavigationEntryImpl> entry;
2460 if (!node->IsMainFrame()) {
2461 // Subframe case: create FrameNavigationEntry.
2462 if (GetLastCommittedEntry()) {
2463 entry = GetLastCommittedEntry()->Clone();
2464 entry->set_extra_headers(extra_headers);
2465 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2466 // Renderer-initiated navigation that target a remote frame are currently
2467 // classified as browser-initiated when this one has already navigated.
2468 // See https://crbug.com/722251.
2469 } else {
2470 // If there's no last committed entry, create an entry for about:blank
2471 // with a subframe entry for our destination.
2472 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
2473 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz435bcb582019-07-12 20:50:062474 GURL(url::kAboutBlankURL), referrer, initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:102475 source_site_instance, page_transition, is_renderer_initiated,
2476 extra_headers, browser_context_,
Hayato Ito303654c2021-06-30 09:07:542477 nullptr /* blob_url_loader_factory */));
clamy987a3752018-05-03 17:36:262478 }
Nate Chapin9f169072021-06-09 19:32:372479 // The UpdatePolicy doesn't matter here. |entry| is only used as a parameter
2480 // to CreateNavigationRequestFromLoadParams(), so while kReplace might
2481 // remove child FrameNavigationEntries (e.g., if this is a cross-process
2482 // same-document navigation), they will still be present in the
2483 // committed NavigationEntry that will be referenced to construct the new
2484 // FrameNavigationEntry tree when this navigation commits.
clamy987a3752018-05-03 17:36:262485 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:082486 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582487 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Anton Bikineevf62d1bf2021-05-15 17:56:072488 absl::nullopt /* commit_origin */, referrer, initiator_origin,
Miyoung Shin5d77f72072020-10-09 15:14:202489 std::vector<GURL>(), blink::PageState(), method, -1,
Antonio Sartori78a749f2020-11-30 12:03:392490 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482491 nullptr /* subresource_web_bundle_navigation_info */,
Antonio Sartori79d549d2021-02-18 12:59:542492 nullptr /* policy_container_policies */);
clamy987a3752018-05-03 17:36:262493 } else {
2494 // Main frame case.
2495 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz641234d52019-11-07 21:07:102496 url, referrer, initiator_origin, source_site_instance, page_transition,
2497 is_renderer_initiated, extra_headers, browser_context_,
Hayato Ito303654c2021-06-30 09:07:542498 blob_url_loader_factory));
clamy987a3752018-05-03 17:36:262499 entry->root_node()->frame_entry->set_source_site_instance(
2500 static_cast<SiteInstanceImpl*>(source_site_instance));
2501 entry->root_node()->frame_entry->set_method(method);
2502 }
clamy987a3752018-05-03 17:36:262503
Camille Lamy5193caa2018-10-12 11:59:422504 bool override_user_agent = false;
clamy987a3752018-05-03 17:36:262505 if (GetLastCommittedEntry() &&
2506 GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
2507 entry->SetIsOverridingUserAgent(true);
Camille Lamy5193caa2018-10-12 11:59:422508 override_user_agent = true;
clamy987a3752018-05-03 17:36:262509 }
2510 // TODO(creis): Set user gesture and intent received timestamp on Android.
2511
2512 // We may not have successfully added the FrameNavigationEntry to |entry|
2513 // above (per https://crbug.com/608402), in which case we create it from
2514 // scratch. This works because we do not depend on |frame_entry| being inside
2515 // |entry| during NavigateToEntry. This will go away when we shortcut this
2516 // further in https://crbug.com/536906.
2517 scoped_refptr<FrameNavigationEntry> frame_entry(entry->GetFrameEntry(node));
2518 if (!frame_entry) {
Patrick Monette50e8bd82019-06-13 22:40:452519 frame_entry = base::MakeRefCounted<FrameNavigationEntry>(
Nate Chapinfbfe5af2021-06-10 17:22:082520 node->unique_name(), -1, -1, "", nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582521 static_cast<SiteInstanceImpl*>(source_site_instance), url,
Anton Bikineevf62d1bf2021-05-15 17:56:072522 absl::nullopt /* origin */, referrer, initiator_origin,
Rakina Zata Amni3a1c0ec2021-04-15 03:35:122523 std::vector<GURL>(), blink::PageState(), method, -1,
2524 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:482525 nullptr /* subresource_web_bundle_navigation_info */,
Titouan Rigoudy6ec70402021-02-02 15:42:192526 nullptr /* policy_container_policies */);
clamy987a3752018-05-03 17:36:262527 }
2528
Camille Lamy5193caa2018-10-12 11:59:422529 LoadURLParams params(url);
Chris Hamilton83272dc2021-02-23 00:24:022530 params.initiator_frame_token = base::OptionalFromPtr(initiator_frame_token);
Antonio Sartori9a82f6f32020-12-14 09:22:452531 params.initiator_process_id = initiator_process_id;
Nasko Oskov93e7c55c2018-12-19 01:59:292532 params.initiator_origin = initiator_origin;
Camille Lamy5193caa2018-10-12 11:59:422533 params.source_site_instance = source_site_instance;
2534 params.load_type = method == "POST" ? LOAD_TYPE_HTTP_POST : LOAD_TYPE_DEFAULT;
2535 params.transition_type = page_transition;
Dominic Farolino226226af2019-06-25 00:58:032536 params.frame_tree_node_id = node->frame_tree_node_id();
Camille Lamy5193caa2018-10-12 11:59:422537 params.referrer = referrer;
2538 /* params.redirect_chain: skip */
2539 params.extra_headers = extra_headers;
2540 params.is_renderer_initiated = is_renderer_initiated;
2541 params.override_user_agent = UA_OVERRIDE_INHERIT;
2542 /* params.base_url_for_data_url: skip */
2543 /* params.virtual_url_for_data_url: skip */
2544 /* params.data_url_as_string: skip */
2545 params.post_data = post_body;
2546 params.can_load_local_resources = false;
Kevin McNeee60e76b2019-11-27 20:01:582547 /* params.should_replace_current_entry: skip */
Camille Lamy5193caa2018-10-12 11:59:422548 /* params.frame_name: skip */
2549 // TODO(clamy): See if user gesture should be propagated to this function.
2550 params.has_user_gesture = false;
2551 params.should_clear_history_list = false;
2552 params.started_from_context_menu = false;
2553 /* params.navigation_ui_data: skip */
2554 /* params.input_start: skip */
Minggang Wangf59db47b2021-06-16 01:56:222555 params.was_activated = blink::mojom::WasActivatedOption::kUnknown;
Robert Ogden011a8082019-01-23 19:04:542556 /* params.reload_type: skip */
John Delaney50425f82020-04-07 16:26:212557 params.impression = impression;
Antonio Sartori6984c742021-08-26 08:03:412558 params.download_policy = std::move(download_policy);
Camille Lamy5193caa2018-10-12 11:59:422559
2560 std::unique_ptr<NavigationRequest> request =
2561 CreateNavigationRequestFromLoadParams(
Dominic Farolino226226af2019-06-25 00:58:032562 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:142563 false /* has_user_gesture */, std::move(source_location),
Antonio Sartori6984c742021-08-26 08:03:412564 ReloadType::NONE, entry.get(), frame_entry.get());
clamyea99ea12018-05-28 13:54:232565
2566 if (!request)
2567 return;
2568
Arthur Hemery948742762019-09-18 10:06:242569 // At this stage we are proceeding with this navigation. If this was renderer
2570 // initiated with user gesture, we need to make sure we clear up potential
2571 // remains of a cancelled browser initiated navigation to avoid URL spoofs.
2572 DiscardNonCommittedEntries();
2573
Lukasz Anforowicz9ee83c272020-12-01 20:14:052574 node->navigator().Navigate(std::move(request), ReloadType::NONE);
clamy987a3752018-05-03 17:36:262575}
2576
[email protected]d1198fd2012-08-13 22:50:192577void NavigationControllerImpl::SetSessionStorageNamespace(
Aaron Colwellf3b316e2021-03-11 20:17:052578 const StoragePartitionId& partition_id,
[email protected]8ff00d72012-10-23 19:12:212579 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:192580 if (!session_storage_namespace)
2581 return;
2582
2583 // We can't overwrite an existing SessionStorage without violating spec.
2584 // Attempts to do so may give a tab access to another tab's session storage
2585 // so die hard on an error.
Aran Gilman37d11632019-10-08 23:07:152586 bool successful_insert =
2587 session_storage_namespace_map_
Aaron Colwellf3b316e2021-03-11 20:17:052588 .insert(std::make_pair(partition_id,
2589 static_cast<SessionStorageNamespaceImpl*>(
2590 session_storage_namespace)))
[email protected]fdac6ade2013-07-20 01:06:302591 .second;
2592 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
Aaron Colwellb731a0ae2021-03-19 19:14:472593 OnStoragePartitionIdAdded(partition_id);
[email protected]d1198fd2012-08-13 22:50:192594}
2595
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572596bool NavigationControllerImpl::IsUnmodifiedBlankTab() {
Aran Gilman37d11632019-10-08 23:07:152597 return IsInitialNavigation() && !GetLastCommittedEntry() &&
Carlos Caballeroede6f8c2021-01-28 11:01:502598 !frame_tree_.has_accessed_initial_main_document();
[email protected]aa62afd2014-04-22 19:22:462599}
2600
Aran Gilman37d11632019-10-08 23:07:152601SessionStorageNamespace* NavigationControllerImpl::GetSessionStorageNamespace(
Aaron Colwell78b4bde2021-03-16 16:16:092602 const SiteInfo& site_info) {
2603 // TODO(acolwell): Remove partition_id logic once we have successfully
2604 // migrated the implementation to be a StoragePartitionConfig. At that point
2605 // |site_info| can be replaced with a StoragePartitionConfig.
2606 const StoragePartitionId partition_id =
2607 site_info.GetStoragePartitionId(browser_context_);
2608 const StoragePartitionConfig partition_config =
Robbie McElrath7d4bd852021-07-24 04:02:192609 site_info.storage_partition_config();
[email protected]d1198fd2012-08-13 22:50:192610
[email protected]fdac6ade2013-07-20 01:06:302611 StoragePartition* partition =
Lukasz Anforowiczb9a969a2021-04-29 15:26:252612 browser_context_->GetStoragePartition(partition_config);
michaelnbacbcbd2016-02-09 00:32:032613 DOMStorageContextWrapper* context_wrapper =
2614 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
2615
2616 SessionStorageNamespaceMap::const_iterator it =
2617 session_storage_namespace_map_.find(partition_id);
2618 if (it != session_storage_namespace_map_.end()) {
2619 // Ensure that this namespace actually belongs to this partition.
Aran Gilman37d11632019-10-08 23:07:152620 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())
2621 ->IsFromContext(context_wrapper));
Aaron Colwellb731a0ae2021-03-19 19:14:472622
2623 // Verify that the config we generated now matches the one that
2624 // was generated when the namespace was added to the map.
Aaron Colwellb731a0ae2021-03-19 19:14:472625 if (partition_config != it->first.config()) {
2626 LogStoragePartitionIdCrashKeys(it->first, partition_id);
2627 }
Sharon Yangd4f48792021-06-30 17:02:532628 CHECK_EQ(partition_config, it->first.config());
Aaron Colwellb731a0ae2021-03-19 19:14:472629
michaelnbacbcbd2016-02-09 00:32:032630 return it->second.get();
2631 }
2632
2633 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:102634 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
2635 SessionStorageNamespaceImpl::Create(context_wrapper);
2636 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
2637 session_storage_namespace.get();
2638 session_storage_namespace_map_[partition_id] =
2639 std::move(session_storage_namespace);
Aaron Colwellb731a0ae2021-03-19 19:14:472640 OnStoragePartitionIdAdded(partition_id);
[email protected]fdac6ade2013-07-20 01:06:302641
Daniel Murphy31bbb8b12018-02-07 21:44:102642 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:302643}
2644
2645SessionStorageNamespace*
2646NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
Robbie McElrath7d4bd852021-07-24 04:02:192647 return GetSessionStorageNamespace(SiteInfo(GetBrowserContext()));
[email protected]fdac6ade2013-07-20 01:06:302648}
2649
2650const SessionStorageNamespaceMap&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572651NavigationControllerImpl::GetSessionStorageNamespaceMap() {
[email protected]fdac6ade2013-07-20 01:06:302652 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:552653}
[email protected]d202a7c2012-01-04 07:53:472654
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572655bool NavigationControllerImpl::NeedsReload() {
[email protected]71fde352011-12-29 03:29:562656 return needs_reload_;
2657}
[email protected]a26023822011-12-29 00:23:552658
[email protected]46bb5e9c2013-10-03 22:16:472659void NavigationControllerImpl::SetNeedsReload() {
Alex Moshchuk7b4f0652019-05-30 18:54:412660 SetNeedsReload(NeedsReloadType::kRequestedByClient);
2661}
2662
2663void NavigationControllerImpl::SetNeedsReload(NeedsReloadType type) {
[email protected]46bb5e9c2013-10-03 22:16:472664 needs_reload_ = true;
Alex Moshchuk7b4f0652019-05-30 18:54:412665 needs_reload_type_ = type;
jaekyunc8cefa82015-01-09 20:14:542666
2667 if (last_committed_entry_index_ != -1) {
2668 entries_[last_committed_entry_index_]->SetTransitionType(
2669 ui::PAGE_TRANSITION_RELOAD);
2670 }
[email protected]46bb5e9c2013-10-03 22:16:472671}
2672
[email protected]d202a7c2012-01-04 07:53:472673void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
Kevin McNee05164772019-09-03 17:24:572674 DCHECK_LT(index, GetEntryCount());
2675 DCHECK_NE(index, last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:312676 DiscardNonCommittedEntries();
2677
2678 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:122679 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:312680 last_committed_entry_index_--;
2681}
2682
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572683NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() {
arthursonzogni5c4c202d2017-04-25 23:41:272684 // If there is no pending_entry_, there should be no pending_entry_index_.
2685 DCHECK(pending_entry_ || pending_entry_index_ == -1);
2686
2687 // If there is a pending_entry_index_, then pending_entry_ must be the entry
Carlos IL42b416592019-10-07 23:10:362688 // at that index. An exception is while a reload of a post commit error page
2689 // is ongoing; in that case pending entry will point to the entry replaced
2690 // by the error.
arthursonzogni5c4c202d2017-04-25 23:41:272691 DCHECK(pending_entry_index_ == -1 ||
Carlos IL42b416592019-10-07 23:10:362692 pending_entry_ == GetEntryAtIndex(pending_entry_index_) ||
2693 pending_entry_ == entry_replaced_by_post_commit_error_.get());
arthursonzogni5c4c202d2017-04-25 23:41:272694
[email protected]022af742011-12-28 18:37:252695 return pending_entry_;
2696}
2697
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572698int NavigationControllerImpl::GetPendingEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:272699 // The pending entry index must always be less than the number of entries.
2700 // If there are no entries, it must be exactly -1.
2701 DCHECK_LT(pending_entry_index_, GetEntryCount());
2702 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:552703 return pending_entry_index_;
2704}
2705
avi25764702015-06-23 15:43:372706void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:572707 std::unique_ptr<NavigationEntryImpl> entry,
Carlos IL42b416592019-10-07 23:10:362708 bool replace,
2709 bool was_post_commit_error) {
mastiz7eddb5f72016-06-23 09:52:452710 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
2711 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:202712
avi5cad4912015-06-19 05:25:442713 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
2714 // need to keep continuity with the pending entry, so copy the pending entry's
2715 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
2716 // then the renderer navigated on its own, independent of the pending entry,
2717 // so don't copy anything.
2718 if (pending_entry_ && pending_entry_index_ == -1)
2719 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:202720
arthursonzogni69a6a1b2019-09-17 09:23:002721 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:202722
creisee17e932015-07-17 17:56:222723 // When replacing, don't prune the forward history.
Carlos IL42b416592019-10-07 23:10:362724 if ((replace || was_post_commit_error) && entries_.size() > 0) {
Mikel Astizba9cf2fd2017-12-17 10:38:102725 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572726 entries_[last_committed_entry_index_].get(), entry.get());
Carlos IL42b416592019-10-07 23:10:362727 // If the new entry is a post-commit error page, we store the current last
2728 // committed entry to the side so that we can put it back when navigating
2729 // away from the error.
2730 if (was_post_commit_error) {
2731 DCHECK(!entry_replaced_by_post_commit_error_);
2732 entry_replaced_by_post_commit_error_ =
2733 std::move(entries_[last_committed_entry_index_]);
2734 }
dcheng36b6aec92015-12-26 06:16:362735 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:222736 return;
2737 }
[email protected]765b35502008-08-21 00:51:202738
creis37979a62015-08-04 19:48:182739 // We shouldn't see replace == true when there's no committed entries.
2740 DCHECK(!replace);
2741
Michael Thiessen9b14d512019-09-23 21:19:472742 PruneForwardEntries();
[email protected]765b35502008-08-21 00:51:202743
Shivani Sharmad8c8d652019-02-13 17:27:572744 PruneOldestSkippableEntryIfFull();
[email protected]765b35502008-08-21 00:51:202745
dcheng36b6aec92015-12-26 06:16:362746 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:202747 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:292748}
2749
Shivani Sharmad8c8d652019-02-13 17:27:572750void NavigationControllerImpl::PruneOldestSkippableEntryIfFull() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:162751 if (entries_.size() < max_entry_count())
2752 return;
2753
2754 DCHECK_EQ(max_entry_count(), entries_.size());
2755 DCHECK_GT(last_committed_entry_index_, 0);
Shivani Sharmad8c8d652019-02-13 17:27:572756 CHECK_EQ(pending_entry_index_, -1);
2757
2758 int index = 0;
Elly Fong-Jonesccc6d1f2021-06-14 18:32:422759 // Retrieve the oldest skippable entry.
2760 for (; index < GetEntryCount(); index++) {
2761 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui())
2762 break;
Shivani Sharmad8c8d652019-02-13 17:27:572763 }
2764
2765 // If there is no skippable entry or if it is the last committed entry then
2766 // fall back to pruning the oldest entry. It is not safe to prune the last
2767 // committed entry.
2768 if (index == GetEntryCount() || index == last_committed_entry_index_)
2769 index = 0;
2770
2771 bool should_succeed = RemoveEntryAtIndex(index);
2772 DCHECK_EQ(true, should_succeed);
2773
2774 NotifyPrunedEntries(this, index, 1);
[email protected]944822b2012-03-02 20:57:252775}
2776
clamy3cb9bea92018-07-10 12:42:022777void NavigationControllerImpl::NavigateToExistingPendingEntry(
Dave Tapuska8bfd84c2019-03-26 20:47:162778 ReloadType reload_type,
Kush Sinhaa8856ecb2021-09-01 14:28:312779 int sandboxed_source_frame_tree_node_id) {
Alexander Timin3a92df72019-09-20 11:59:502780 TRACE_EVENT0("navigation",
2781 "NavigationControllerImpl::NavigateToExistingPendingEntry");
arthursonzogni5c4c202d2017-04-25 23:41:272782 DCHECK(pending_entry_);
clamy3cb9bea92018-07-10 12:42:022783 DCHECK(IsInitialNavigation() || pending_entry_index_ != -1);
Carlos IL42b416592019-10-07 23:10:362784 if (pending_entry_index_ != -1) {
2785 // The pending entry may not be in entries_ if a post-commit error page is
2786 // showing.
2787 DCHECK(pending_entry_ == entries_[pending_entry_index_].get() ||
2788 pending_entry_ == entry_replaced_by_post_commit_error_.get());
2789 }
Gyuyoung Kim107c2a02021-04-13 01:49:302790 DCHECK(!blink::IsRendererDebugURL(pending_entry_->GetURL()));
Alex Moshchuk3a4e77a2020-05-29 21:32:572791 bool is_forced_reload = needs_reload_;
[email protected]72097fd02010-01-21 23:36:012792 needs_reload_ = false;
Carlos Caballero40b0efd2021-01-26 11:55:002793 FrameTreeNode* root = frame_tree_.root();
Arthur Sonzogni620cec62018-12-13 13:08:572794 int nav_entry_id = pending_entry_->GetUniqueID();
2795
[email protected]83c2e232011-10-07 21:36:462796 // If we were navigating to a slow-to-commit page, and the user performs
2797 // a session history navigation to the last committed page, RenderViewHost
2798 // will force the throbber to start, but WebKit will essentially ignore the
2799 // navigation, and won't send a message to stop the throbber. To prevent this
2800 // from happening, we drop the navigation here and stop the slow-to-commit
2801 // page from loading (which would normally happen during the navigation).
clamy3cb9bea92018-07-10 12:42:022802 if (pending_entry_index_ == last_committed_entry_index_ &&
Lukasz Anforowicz6b75c0d2020-12-01 22:56:082803 !pending_entry_->IsRestored() &&
arthursonzogni5c4c202d2017-04-25 23:41:272804 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
Takashi Toyoshimabf549472021-07-01 07:47:202805 frame_tree_.StopLoading();
[email protected]6a13a6c2011-12-20 21:47:122806
[email protected]83c2e232011-10-07 21:36:462807 DiscardNonCommittedEntries();
2808 return;
2809 }
2810
creisce0ef3572017-01-26 17:53:082811 // Compare FrameNavigationEntries to see which frames in the tree need to be
2812 // navigated.
clamy3cb9bea92018-07-10 12:42:022813 std::vector<std::unique_ptr<NavigationRequest>> same_document_loads;
2814 std::vector<std::unique_ptr<NavigationRequest>> different_document_loads;
Kush Sinhaa8856ecb2021-09-01 14:28:312815 FindFramesToNavigate(root, reload_type, &same_document_loads,
2816 &different_document_loads);
creis4e2ecb72015-06-20 00:46:302817
2818 if (same_document_loads.empty() && different_document_loads.empty()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:572819 // We were unable to match any frames to navigate. This can happen if a
2820 // history navigation targets a subframe that no longer exists
2821 // (https://crbug.com/705550). In this case, we need to update the current
2822 // history entry to the pending one but keep the main document loaded. We
2823 // also need to ensure that observers are informed about the updated
2824 // current history entry (e.g., for greying out back/forward buttons), and
2825 // that renderer processes update their history offsets. The easiest way
2826 // to do all that is to schedule a "redundant" same-document navigation in
2827 // the main frame.
2828 //
2829 // Note that we don't want to remove this history entry, as it might still
2830 // be valid later, since a frame that it's targeting may be recreated.
2831 //
2832 // TODO(alexmos, creis): This behavior isn't ideal, as the user would
2833 // need to repeat history navigations until finding the one that works.
2834 // Consider changing this behavior to keep looking for the first valid
2835 // history entry that finds frames to navigate.
clamy3cb9bea92018-07-10 12:42:022836 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422837 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572838 root, pending_entry_, pending_entry_->GetFrameEntry(root),
Alex Moshchuk3a4e77a2020-05-29 21:32:572839 ReloadType::NONE /* reload_type */,
2840 true /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:312841 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022842 if (!navigation_request) {
Alex Moshchuk3a4e77a2020-05-29 21:32:572843 // If this navigation cannot start, delete the pending NavigationEntry.
clamy3cb9bea92018-07-10 12:42:022844 DiscardPendingEntry(false);
2845 return;
2846 }
Alex Moshchuk3a4e77a2020-05-29 21:32:572847 same_document_loads.push_back(std::move(navigation_request));
2848
2849 // Sanity check that we never take this branch for any kinds of reloads,
2850 // as those should've queued a different-document load in the main frame.
2851 DCHECK(!is_forced_reload);
2852 DCHECK_EQ(reload_type, ReloadType::NONE);
creis4e2ecb72015-06-20 00:46:302853 }
2854
Dave Tapuska8bfd84c2019-03-26 20:47:162855 // If |sandboxed_source_frame_node_id| is valid, then track whether this
2856 // navigation affects any frame outside the frame's subtree.
2857 if (sandboxed_source_frame_tree_node_id !=
2858 FrameTreeNode::kFrameTreeNodeInvalidId) {
2859 bool navigates_inside_tree =
2860 DoesSandboxNavigationStayWithinSubtree(
2861 sandboxed_source_frame_tree_node_id, same_document_loads) &&
2862 DoesSandboxNavigationStayWithinSubtree(
2863 sandboxed_source_frame_tree_node_id, different_document_loads);
Dave Tapuska716ed3af2019-09-23 18:45:502864 // Count the navigations as web use counters so we can determine
Dave Tapuska8bfd84c2019-03-26 20:47:162865 // the number of pages that trigger this.
2866 FrameTreeNode* sandbox_source_frame_tree_node =
2867 FrameTreeNode::GloballyFindByID(sandboxed_source_frame_tree_node_id);
2868 if (sandbox_source_frame_tree_node) {
2869 GetContentClient()->browser()->LogWebFeatureForCurrentPage(
2870 sandbox_source_frame_tree_node->current_frame_host(),
2871 navigates_inside_tree
2872 ? blink::mojom::WebFeature::kSandboxBackForwardStaysWithinSubtree
2873 : blink::mojom::WebFeature::
2874 kSandboxBackForwardAffectsFramesOutsideSubtree);
2875 }
Dave Tapuska855c1e12019-08-23 20:45:522876
2877 // If the navigation occurred outside the tree discard it because
2878 // the sandboxed frame didn't have permission to navigate outside
2879 // its tree. If it is possible that the navigation is both inside and
2880 // outside the frame tree and we discard it entirely because we don't
2881 // want to end up in a history state that didn't exist before.
2882 if (base::FeatureList::IsEnabled(
2883 features::kHistoryPreventSandboxedNavigation) &&
2884 !navigates_inside_tree) {
2885 DiscardPendingEntry(false);
2886 return;
2887 }
Dave Tapuska8bfd84c2019-03-26 20:47:162888 }
2889
Carlos Caballero539a421c2020-07-06 10:25:572890 // BackForwardCache:
2891 // Navigate immediately if the document is in the BackForwardCache.
2892 if (back_forward_cache_.GetEntry(nav_entry_id)) {
2893 TRACE_EVENT0("navigation", "BackForwardCache_CreateNavigationRequest");
2894 DCHECK_EQ(reload_type, ReloadType::NONE);
2895 auto navigation_request = CreateNavigationRequestFromEntry(
2896 root, pending_entry_, pending_entry_->GetFrameEntry(root),
2897 ReloadType::NONE, false /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:312898 false /* is_history_navigation_in_new_child */);
Lukasz Anforowicz9ee83c272020-12-01 20:14:052899 root->navigator().Navigate(std::move(navigation_request), ReloadType::NONE);
Carlos Caballero539a421c2020-07-06 10:25:572900
2901 return;
2902 }
2903
2904 // History navigation might try to reuse a specific BrowsingInstance, already
2905 // used by a page in the cache. To avoid having two different main frames that
2906 // live in the same BrowsingInstance, evict the all pages with this
2907 // BrowsingInstance from the cache.
2908 //
2909 // For example, take the following scenario:
2910 //
2911 // A1 = Some page on a.com
2912 // A2 = Some other page on a.com
2913 // B3 = An uncacheable page on b.com
2914 //
2915 // Then the following navigations occur:
2916 // A1->A2->B3->A1
2917 // On the navigation from B3 to A1, A2 will remain in the cache (B3 doesn't
2918 // take its place) and A1 will be created in the same BrowsingInstance (and
2919 // SiteInstance), as A2.
2920 //
2921 // If we didn't do anything, both A1 and A2 would remain alive in the same
2922 // BrowsingInstance/SiteInstance, which is unsupported by
2923 // RenderFrameHostManager::CommitPending(). To avoid this conundrum, we evict
2924 // A2 from the cache.
2925 if (pending_entry_->site_instance()) {
2926 back_forward_cache_.EvictFramesInRelatedSiteInstances(
2927 pending_entry_->site_instance());
2928 }
2929
clamy3cb9bea92018-07-10 12:42:022930 // This call does not support re-entrancy. See http://crbug.com/347742.
2931 CHECK(!in_navigate_to_pending_entry_);
2932 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:302933
arthursonzogni66f711c2019-10-08 14:40:362934 // It is not possible to delete the pending NavigationEntry while navigating
2935 // to it. Grab a reference to delay potential deletion until the end of this
2936 // function.
2937 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
2938
creis4e2ecb72015-06-20 00:46:302939 // Send all the same document frame loads before the different document loads.
clamy3cb9bea92018-07-10 12:42:022940 for (auto& item : same_document_loads) {
2941 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:052942 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:302943 }
clamy3cb9bea92018-07-10 12:42:022944 for (auto& item : different_document_loads) {
2945 FrameTreeNode* frame = item->frame_tree_node();
Lukasz Anforowicz9ee83c272020-12-01 20:14:052946 frame->navigator().Navigate(std::move(item), reload_type);
creis4e2ecb72015-06-20 00:46:302947 }
clamy3cb9bea92018-07-10 12:42:022948
2949 in_navigate_to_pending_entry_ = false;
creis4e2ecb72015-06-20 00:46:302950}
2951
Alex Moshchuk3a4e77a2020-05-29 21:32:572952NavigationControllerImpl::HistoryNavigationAction
2953NavigationControllerImpl::DetermineActionForHistoryNavigation(
creis4e2ecb72015-06-20 00:46:302954 FrameTreeNode* frame,
Alex Moshchuk3a4e77a2020-05-29 21:32:572955 ReloadType reload_type) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:422956 RenderFrameHostImpl* render_frame_host = frame->current_frame_host();
Sreeja Kamishettydb8e2892021-03-10 09:30:582957 // Only active and prerendered documents are allowed to navigate in their
2958 // frame.
Sreeja Kamishetty8eacabb2021-03-09 11:45:422959 if (render_frame_host->lifecycle_state() !=
Sreeja Kamishetty299329ad2021-03-25 14:06:012960 RenderFrameHostImpl::LifecycleStateImpl::kPrerendering) {
Sreeja Kamishettydb8e2892021-03-10 09:30:582961 // - If the document is in pending deletion, the browser already committed
2962 // to destroying this RenderFrameHost. See https://crbug.com/930278.
2963 // - If the document is in back-forward cache, it's not allowed to navigate
2964 // as it should remain frozen. Ignore the request and evict the document
2965 // from back-forward cache.
Sreeja Kamishetty8eacabb2021-03-09 11:45:422966 //
Sreeja Kamishettydb8e2892021-03-10 09:30:582967 // If the document is inactive, there's no need to recurse into subframes,
Sreeja Kamishetty8eacabb2021-03-09 11:45:422968 // which should all be inactive as well.
Fergal Daly1336ac642021-09-14 15:13:112969 if (frame->current_frame_host()->IsInactiveAndDisallowActivation(
2970 DisallowActivationReasonId::kDetermineActionForHistoryNavigation)) {
Sreeja Kamishetty8eacabb2021-03-09 11:45:422971 return HistoryNavigationAction::kStopLooking;
Fergal Daly1336ac642021-09-14 15:13:112972 }
Sreeja Kamishetty8eacabb2021-03-09 11:45:422973 }
arthursonzogni03f76152019-02-12 10:35:202974
Alex Moshchuk3a4e77a2020-05-29 21:32:572975 // If there's no last committed entry, there is no previous history entry to
2976 // compare against, so fall back to a different-document load. Note that we
2977 // should only reach this case for the root frame and not descend further
2978 // into subframes.
2979 if (!GetLastCommittedEntry()) {
2980 DCHECK(frame->IsMainFrame());
2981 return HistoryNavigationAction::kDifferentDocument;
2982 }
2983
2984 // Reloads should result in a different-document load. Note that reloads may
2985 // also happen via the |needs_reload_| mechanism where the reload_type is
2986 // NONE, so detect this by comparing whether we're going to the same
2987 // entry that we're currently on. Similarly to above, only main frames
2988 // should reach this. Note that subframes support reloads, but that's done
2989 // via a different path that doesn't involve FindFramesToNavigate (see
2990 // RenderFrameHost::Reload()).
2991 if (reload_type != ReloadType::NONE ||
2992 pending_entry_index_ == last_committed_entry_index_) {
2993 DCHECK(frame->IsMainFrame());
2994 return HistoryNavigationAction::kDifferentDocument;
2995 }
2996
Alex Moshchuk47d1a4bd2020-06-01 22:15:342997 // If there is no new FrameNavigationEntry for the frame, ignore the
2998 // load. For example, this may happen when going back to an entry before a
2999 // frame was created. Suppose we commit a same-document navigation that also
3000 // results in adding a new subframe somewhere in the tree. If we go back,
3001 // the new subframe will be missing a FrameNavigationEntry in the previous
3002 // NavigationEntry, but we shouldn't delete or change what's loaded in
3003 // it.
3004 //
Alex Moshchuke65c39272020-06-03 17:55:373005 // Note that in this case, there is no need to keep looking for navigations
3006 // in subframes, which would be missing FrameNavigationEntries as well.
3007 //
Alex Moshchuk47d1a4bd2020-06-01 22:15:343008 // It's important to check this before checking |old_item| below, since both
3009 // might be null, and in that case we still shouldn't change what's loaded in
3010 // this frame. Note that scheduling any loads assumes that |new_item| is
3011 // non-null. See https://crbug.com/1088354.
3012 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3013 if (!new_item)
Alex Moshchuke65c39272020-06-03 17:55:373014 return HistoryNavigationAction::kStopLooking;
Alex Moshchuk47d1a4bd2020-06-01 22:15:343015
Alex Moshchuk3a4e77a2020-05-29 21:32:573016 // If there is no old FrameNavigationEntry, schedule a different-document
3017 // load.
3018 //
creis225a7432016-06-03 22:56:273019 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
3020 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:303021 FrameNavigationEntry* old_item =
3022 GetLastCommittedEntry()->GetFrameEntry(frame);
Alex Moshchuk3a4e77a2020-05-29 21:32:573023 if (!old_item)
3024 return HistoryNavigationAction::kDifferentDocument;
3025
Alex Moshchuk3a4e77a2020-05-29 21:32:573026 // If the new item is not in the same SiteInstance, schedule a
3027 // different-document load. Newly restored items may not have a SiteInstance
3028 // yet, in which case it will be assigned on first commit.
3029 if (new_item->site_instance() &&
3030 new_item->site_instance() != old_item->site_instance())
3031 return HistoryNavigationAction::kDifferentDocument;
3032
3033 // Schedule a different-document load if the current RenderFrameHost is not
danakj25c436d2021-04-01 16:35:313034 // live. This case can happen for Ctrl+Back or after a renderer crash. Note
3035 // that we do this even if the history navigation would not be modifying this
3036 // frame were it live.
3037 if (!frame->current_frame_host()->IsRenderFrameLive())
Alex Moshchuk3a4e77a2020-05-29 21:32:573038 return HistoryNavigationAction::kDifferentDocument;
3039
3040 if (new_item->item_sequence_number() != old_item->item_sequence_number()) {
danakj25c436d2021-04-01 16:35:313041 // Starting a navigation after a crash early-promotes the speculative
3042 // RenderFrameHost. Then we have a RenderFrameHost with no document in it
3043 // committed yet, so we can not possibly perform a same-document history
3044 // navigation. The frame would need to be reloaded with a cross-document
3045 // navigation.
3046 if (!frame->current_frame_host()->has_committed_any_navigation())
3047 return HistoryNavigationAction::kDifferentDocument;
3048
creis54131692016-08-12 18:32:253049 // Same document loads happen if the previous item has the same document
danakjb952ef12021-01-14 19:58:493050 // sequence number but different item sequence number.
3051 if (new_item->document_sequence_number() ==
3052 old_item->document_sequence_number()) {
Alex Moshchuk3a4e77a2020-05-29 21:32:573053 return HistoryNavigationAction::kSameDocument;
danakjb952ef12021-01-14 19:58:493054 }
avib48cb312016-05-05 21:35:003055
Alex Moshchuk3a4e77a2020-05-29 21:32:573056 // Otherwise, if both item and document sequence numbers differ, this
3057 // should be a different document load.
3058 return HistoryNavigationAction::kDifferentDocument;
3059 }
3060
3061 // If the item sequence numbers match, there is no need to navigate this
Alex Moshchuke65c39272020-06-03 17:55:373062 // frame. Keep looking for navigations in this frame's children.
Alex Moshchuk3a4e77a2020-05-29 21:32:573063 DCHECK_EQ(new_item->document_sequence_number(),
3064 old_item->document_sequence_number());
Alex Moshchuke65c39272020-06-03 17:55:373065 return HistoryNavigationAction::kKeepLooking;
Alex Moshchuk3a4e77a2020-05-29 21:32:573066}
3067
3068void NavigationControllerImpl::FindFramesToNavigate(
3069 FrameTreeNode* frame,
3070 ReloadType reload_type,
3071 std::vector<std::unique_ptr<NavigationRequest>>* same_document_loads,
3072 std::vector<std::unique_ptr<NavigationRequest>>* different_document_loads) {
3073 DCHECK(pending_entry_);
3074 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
3075
3076 auto action = DetermineActionForHistoryNavigation(frame, reload_type);
3077
3078 if (action == HistoryNavigationAction::kSameDocument) {
3079 std::unique_ptr<NavigationRequest> navigation_request =
3080 CreateNavigationRequestFromEntry(
3081 frame, pending_entry_, new_item, reload_type,
3082 true /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:313083 false /* is_history_navigation_in_new_child */);
Alex Moshchuk3a4e77a2020-05-29 21:32:573084 if (navigation_request) {
3085 // Only add the request if was properly created. It's possible for the
3086 // creation to fail in certain cases, e.g. when the URL is invalid.
3087 same_document_loads->push_back(std::move(navigation_request));
creis4e2ecb72015-06-20 00:46:303088 }
Alex Moshchuk3a4e77a2020-05-29 21:32:573089 } else if (action == HistoryNavigationAction::kDifferentDocument) {
Lei Zhang96031532019-10-10 19:05:473090 std::unique_ptr<NavigationRequest> navigation_request =
3091 CreateNavigationRequestFromEntry(
3092 frame, pending_entry_, new_item, reload_type,
3093 false /* is_same_document_history_load */,
Kush Sinhaa8856ecb2021-09-01 14:28:313094 false /* is_history_navigation_in_new_child */);
Lei Zhang96031532019-10-10 19:05:473095 if (navigation_request) {
3096 // Only add the request if was properly created. It's possible for the
3097 // creation to fail in certain cases, e.g. when the URL is invalid.
3098 different_document_loads->push_back(std::move(navigation_request));
3099 }
3100 // For a different document, the subframes will be destroyed, so there's
3101 // no need to consider them.
3102 return;
Alex Moshchuke65c39272020-06-03 17:55:373103 } else if (action == HistoryNavigationAction::kStopLooking) {
3104 return;
creis4e2ecb72015-06-20 00:46:303105 }
3106
3107 for (size_t i = 0; i < frame->child_count(); i++) {
Kush Sinhaa8856ecb2021-09-01 14:28:313108 FindFramesToNavigate(frame->child_at(i), reload_type, same_document_loads,
3109 different_document_loads);
creis4e2ecb72015-06-20 00:46:303110 }
3111}
3112
Harkiran Bolariaba823e42021-05-21 18:30:363113base::WeakPtr<NavigationHandle> NavigationControllerImpl::NavigateWithoutEntry(
clamy21718cc22018-06-13 13:34:243114 const LoadURLParams& params) {
3115 // Find the appropriate FrameTreeNode.
3116 FrameTreeNode* node = nullptr;
3117 if (params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId ||
3118 !params.frame_name.empty()) {
3119 node = params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId
Carlos Caballero40b0efd2021-01-26 11:55:003120 ? frame_tree_.FindByID(params.frame_tree_node_id)
3121 : frame_tree_.FindByName(params.frame_name);
Hayato Ito7a80db42021-07-05 06:18:543122 DCHECK(!node || node->frame_tree() == &frame_tree_);
clamy21718cc22018-06-13 13:34:243123 }
3124
3125 // If no FrameTreeNode was specified, navigate the main frame.
3126 if (!node)
Carlos Caballero40b0efd2021-01-26 11:55:003127 node = frame_tree_.root();
clamy21718cc22018-06-13 13:34:243128
Camille Lamy5193caa2018-10-12 11:59:423129 // Compute overrides to the LoadURLParams for |override_user_agent|,
3130 // |should_replace_current_entry| and |has_user_gesture| that will be used
3131 // both in the creation of the NavigationEntry and the NavigationRequest.
3132 // Ideally, the LoadURLParams themselves would be updated, but since they are
3133 // passed as a const reference, this is not possible.
3134 // TODO(clamy): When we only create a NavigationRequest, move this to
3135 // CreateNavigationRequestFromLoadURLParams.
3136 bool override_user_agent = ShouldOverrideUserAgent(params.override_user_agent,
3137 GetLastCommittedEntry());
3138
3139 // Don't allow an entry replacement if there is no entry to replace.
3140 // http://crbug.com/457149
Hayato Ito7a80db42021-07-05 06:18:543141 //
3142 // If there is an entry, an entry replacement must happen if the current
3143 // browsing context should maintain a trivial session history.
3144 bool should_replace_current_entry = (params.should_replace_current_entry ||
3145 ShouldMaintainTrivialSessionHistory()) &&
3146 entries_.size();
Camille Lamy5193caa2018-10-12 11:59:423147
clamy21718cc22018-06-13 13:34:243148 // Javascript URLs should not create NavigationEntries. All other navigations
3149 // do, including navigations to chrome renderer debug URLs.
clamy21718cc22018-06-13 13:34:243150 if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
Scott Violet5ae6c42e2020-10-28 02:47:373151 std::unique_ptr<NavigationEntryImpl> entry =
3152 CreateNavigationEntryFromLoadParams(node, params, override_user_agent,
3153 should_replace_current_entry,
3154 params.has_user_gesture);
clamy21718cc22018-06-13 13:34:243155 DiscardPendingEntry(false);
3156 SetPendingEntry(std::move(entry));
3157 }
3158
3159 // Renderer-debug URLs are sent to the renderer process immediately for
3160 // processing and don't need to create a NavigationRequest.
3161 // Note: this includes navigations to JavaScript URLs, which are considered
3162 // renderer-debug URLs.
3163 // Note: we intentionally leave the pending entry in place for renderer debug
3164 // URLs, unlike the cases below where we clear it if the navigation doesn't
3165 // proceed.
Gyuyoung Kim107c2a02021-04-13 01:49:303166 if (blink::IsRendererDebugURL(params.url)) {
Oleg Davydov2cc0167b2019-02-05 14:32:483167 // Renderer-debug URLs won't go through NavigationThrottlers so we have to
3168 // check them explicitly. See bug 913334.
Aaron Colwelle1908d982020-06-26 22:08:153169 if (GetContentClient()->browser()->ShouldBlockRendererDebugURL(
Oleg Davydov2cc0167b2019-02-05 14:32:483170 params.url, browser_context_)) {
3171 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363172 return nullptr;
Oleg Davydov2cc0167b2019-02-05 14:32:483173 }
3174
clamy21718cc22018-06-13 13:34:243175 HandleRendererDebugURL(node, params.url);
Harkiran Bolariaba823e42021-05-21 18:30:363176 return nullptr;
clamy21718cc22018-06-13 13:34:243177 }
3178
Antonio Sartori78a749f2020-11-30 12:03:393179 DCHECK(pending_entry_);
3180
clamy21718cc22018-06-13 13:34:243181 // Convert navigations to the current URL to a reload.
3182 // TODO(clamy): We should be using FrameTreeNode::IsMainFrame here instead of
3183 // relying on the frame tree node id from LoadURLParams. Unfortunately,
3184 // DevTools sometimes issues navigations to main frames that they do not
3185 // expect to see treated as reload, and it only works because they pass a
3186 // FrameTreeNode id in their LoadURLParams. Change this once they no longer do
3187 // that. See https://crbug.com/850926.
Robert Ogden011a8082019-01-23 19:04:543188 ReloadType reload_type = params.reload_type;
3189 if (reload_type == ReloadType::NONE &&
3190 ShouldTreatNavigationAsReload(
Fergal Daly766177d2020-07-07 07:54:043191 node, params.url, pending_entry_->GetVirtualURL(),
clamy21718cc22018-06-13 13:34:243192 params.base_url_for_data_url, params.transition_type,
clamy21718cc22018-06-13 13:34:243193 params.load_type ==
3194 NavigationController::LOAD_TYPE_HTTP_POST /* is_post */,
Hayato Ito7a80db42021-07-05 06:18:543195 should_replace_current_entry, GetLastCommittedEntry())) {
clamy21718cc22018-06-13 13:34:243196 reload_type = ReloadType::NORMAL;
Alexander Timinb70f67382020-12-10 00:03:473197 pending_entry_->set_reload_type(reload_type);
Antonio Sartori78a749f2020-11-30 12:03:393198
3199 // If this is a reload of an existing FrameNavigationEntry and we had a
3200 // policy container for it, then we should copy it into the pending entry,
3201 // so that it is copied to the navigation request in
3202 // CreateNavigationRequestFromLoadParams later.
3203 if (GetLastCommittedEntry()) {
3204 FrameNavigationEntry* previous_frame_entry =
3205 GetLastCommittedEntry()->GetFrameEntry(node);
Titouan Rigoudy6ec70402021-02-02 15:42:193206 if (previous_frame_entry &&
3207 previous_frame_entry->policy_container_policies()) {
3208 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
Antonio Sartori5d09b30f2021-03-02 09:27:163209 previous_frame_entry->policy_container_policies()->Clone());
Antonio Sartori78a749f2020-11-30 12:03:393210 }
3211 }
3212 }
3213
3214 // If this navigation is an "Enter-in-omnibox" with the initial about:blank
3215 // document (so no last commit), then we should copy the document polices from
3216 // RenderFrameHost's PolicyContainerHost. The NavigationRequest will create a
3217 // new PolicyContainerHost with the document policies from the
3218 // |pending_entry_|, and that PolicyContainerHost will be put in the final
3219 // RenderFrameHost for the navigation. This way, we ensure that we keep
3220 // enforcing the right policies on the initial empty document after the
3221 // reload.
3222 if (!GetLastCommittedEntry() && params.url.IsAboutBlank()) {
3223 if (node->current_frame_host() &&
3224 node->current_frame_host()->policy_container_host()) {
Titouan Rigoudy6ec70402021-02-02 15:42:193225 pending_entry_->GetFrameEntry(node)->set_policy_container_policies(
Antonio Sartori5d09b30f2021-03-02 09:27:163226 node->current_frame_host()
3227 ->policy_container_host()
3228 ->policies()
3229 .Clone());
Antonio Sartori78a749f2020-11-30 12:03:393230 }
clamy21718cc22018-06-13 13:34:243231 }
3232
3233 // navigation_ui_data should only be present for main frame navigations.
3234 DCHECK(node->IsMainFrame() || !params.navigation_ui_data);
3235
Camille Lamy5193caa2018-10-12 11:59:423236 std::unique_ptr<NavigationRequest> request =
3237 CreateNavigationRequestFromLoadParams(
3238 node, params, override_user_agent, should_replace_current_entry,
Antonio Sartori2f763d9d2021-04-21 10:04:143239 params.has_user_gesture, network::mojom::SourceLocation::New(),
Antonio Sartori6984c742021-08-26 08:03:413240 reload_type, pending_entry_, pending_entry_->GetFrameEntry(node));
clamy21718cc22018-06-13 13:34:243241
3242 // If the navigation couldn't start, return immediately and discard the
3243 // pending NavigationEntry.
3244 if (!request) {
3245 DiscardPendingEntry(false);
Harkiran Bolariaba823e42021-05-21 18:30:363246 return nullptr;
clamy21718cc22018-06-13 13:34:243247 }
3248
Camille Lamy5193caa2018-10-12 11:59:423249#if DCHECK_IS_ON()
3250 // Safety check that NavigationRequest and NavigationEntry match.
3251 ValidateRequestMatchesEntry(request.get(), pending_entry_);
3252#endif
3253
clamy21718cc22018-06-13 13:34:243254 // This call does not support re-entrancy. See http://crbug.com/347742.
3255 CHECK(!in_navigate_to_pending_entry_);
3256 in_navigate_to_pending_entry_ = true;
3257
arthursonzogni66f711c2019-10-08 14:40:363258 // It is not possible to delete the pending NavigationEntry while navigating
3259 // to it. Grab a reference to delay potential deletion until the end of this
3260 // function.
3261 std::unique_ptr<PendingEntryRef> pending_entry_ref = ReferencePendingEntry();
3262
Harkiran Bolariaba823e42021-05-21 18:30:363263 base::WeakPtr<NavigationHandle> created_navigation_handle(
3264 request->GetWeakPtr());
Lukasz Anforowicz9ee83c272020-12-01 20:14:053265 node->navigator().Navigate(std::move(request), reload_type);
clamy21718cc22018-06-13 13:34:243266
3267 in_navigate_to_pending_entry_ = false;
Harkiran Bolariaba823e42021-05-21 18:30:363268 return created_navigation_handle;
clamy21718cc22018-06-13 13:34:243269}
3270
clamyea99ea12018-05-28 13:54:233271void NavigationControllerImpl::HandleRendererDebugURL(
3272 FrameTreeNode* frame_tree_node,
3273 const GURL& url) {
3274 if (!frame_tree_node->current_frame_host()->IsRenderFrameLive()) {
clamy21718cc22018-06-13 13:34:243275 // Any renderer-side debug URLs or javascript: URLs should be ignored if
3276 // the renderer process is not live, unless it is the initial navigation
3277 // of the tab.
clamyea99ea12018-05-28 13:54:233278 if (!IsInitialNavigation()) {
3279 DiscardNonCommittedEntries();
3280 return;
3281 }
Fergal Dalyecd3b0202020-06-25 01:57:373282 // The current frame is always a main frame. If IsInitialNavigation() is
3283 // true then there have been no navigations and any frames of this tab must
3284 // be in the same renderer process. If that has crashed then the only frame
3285 // that can be revived is the main frame.
3286 frame_tree_node->render_manager()
3287 ->InitializeMainRenderFrameForImmediateUse();
clamyea99ea12018-05-28 13:54:233288 }
3289 frame_tree_node->current_frame_host()->HandleRendererDebugURL(url);
3290}
3291
clamy21718cc22018-06-13 13:34:243292std::unique_ptr<NavigationEntryImpl>
3293NavigationControllerImpl::CreateNavigationEntryFromLoadParams(
3294 FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:423295 const LoadURLParams& params,
3296 bool override_user_agent,
3297 bool should_replace_current_entry,
3298 bool has_user_gesture) {
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393299 // Browser initiated navigations might not have a blob_url_loader_factory set
3300 // in params even if the navigation is to a blob URL. If that happens, lookup
3301 // the correct url loader factory to use here.
3302 auto blob_url_loader_factory = params.blob_url_loader_factory;
Kinuko Yasuda7d925ea22019-08-01 10:08:483303 if (!blob_url_loader_factory && params.url.SchemeIsBlob()) {
Marijn Kruisselbrink8ffda442020-09-03 18:29:473304 // Resolve the blob URL in the storage partition associated with the target
3305 // frame. This is the storage partition the URL will be loaded in, and only
3306 // URLs that can be resolved by it should be able to access its data.
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393307 blob_url_loader_factory = ChromeBlobStorageContext::URLLoaderFactoryForUrl(
Marijn Kruisselbrink8ffda442020-09-03 18:29:473308 node->current_frame_host()->GetStoragePartition(), params.url);
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:393309 }
3310
clamy21718cc22018-06-13 13:34:243311 std::unique_ptr<NavigationEntryImpl> entry;
Tommy C. Li03eee77a2019-02-05 02:07:443312 // extra_headers in params are \n separated; navigation entries want \r\n.
3313 std::string extra_headers_crlf;
3314 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
clamy21718cc22018-06-13 13:34:243315
3316 // For subframes, create a pending entry with a corresponding frame entry.
3317 if (!node->IsMainFrame()) {
Tommy C. Li03eee77a2019-02-05 02:07:443318 if (GetLastCommittedEntry()) {
Tommy C. Li03eee77a2019-02-05 02:07:443319 entry = GetLastCommittedEntry()->Clone();
3320 } else {
3321 // If there's no last committed entry, create an entry for about:blank
3322 // with a subframe entry for our destination.
3323 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
3324 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz435bcb582019-07-12 20:50:063325 GURL(url::kAboutBlankURL), params.referrer, params.initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:103326 params.source_site_instance.get(), params.transition_type,
3327 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
Hayato Ito303654c2021-06-30 09:07:543328 blob_url_loader_factory));
Tommy C. Li03eee77a2019-02-05 02:07:443329 }
Nasko Oskov18006bc2018-12-06 02:53:583330
clamy21718cc22018-06-13 13:34:243331 entry->AddOrUpdateFrameEntry(
Nate Chapinfbfe5af2021-06-10 17:22:083332 node, NavigationEntryImpl::UpdatePolicy::kReplace, -1, -1, "", nullptr,
clamy21718cc22018-06-13 13:34:243333 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
Anton Bikineevf62d1bf2021-05-15 17:56:073334 params.url, absl::nullopt, params.referrer, params.initiator_origin,
Miyoung Shin5d77f72072020-10-09 15:14:203335 params.redirect_chain, blink::PageState(), "GET", -1,
Antonio Sartori78a749f2020-11-30 12:03:393336 blob_url_loader_factory, nullptr /* web_bundle_navigation_info */,
Kunihiko Sakamoto346a74e2021-03-10 08:57:483337 nullptr /* subresource_web_bundle_navigation_info */,
Antonio Sartori78a749f2020-11-30 12:03:393338 // If in NavigateWithoutEntry we later determine that this navigation is
Charlie Reis7e2cb6d2021-01-26 01:27:163339 // a conversion of a new navigation into a reload, we will set the right
3340 // document policies there.
Titouan Rigoudy6ec70402021-02-02 15:42:193341 nullptr /* policy_container_policies */);
clamy21718cc22018-06-13 13:34:243342 } else {
3343 // Otherwise, create a pending entry for the main frame.
clamy21718cc22018-06-13 13:34:243344 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
Lukasz Anforowicz435bcb582019-07-12 20:50:063345 params.url, params.referrer, params.initiator_origin,
Lukasz Anforowicz641234d52019-11-07 21:07:103346 params.source_site_instance.get(), params.transition_type,
3347 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
Hayato Ito303654c2021-06-30 09:07:543348 blob_url_loader_factory));
clamy21718cc22018-06-13 13:34:243349 entry->set_source_site_instance(
3350 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
3351 entry->SetRedirectChain(params.redirect_chain);
3352 }
3353
3354 // Set the FTN ID (only used in non-site-per-process, for tests).
3355 entry->set_frame_tree_node_id(node->frame_tree_node_id());
clamy21718cc22018-06-13 13:34:243356 entry->set_should_clear_history_list(params.should_clear_history_list);
Camille Lamy5193caa2018-10-12 11:59:423357 entry->SetIsOverridingUserAgent(override_user_agent);
3358 entry->set_has_user_gesture(has_user_gesture);
Robert Ogden011a8082019-01-23 19:04:543359 entry->set_reload_type(params.reload_type);
clamy21718cc22018-06-13 13:34:243360
clamy21718cc22018-06-13 13:34:243361 switch (params.load_type) {
3362 case LOAD_TYPE_DEFAULT:
3363 break;
3364 case LOAD_TYPE_HTTP_POST:
3365 entry->SetHasPostData(true);
3366 entry->SetPostData(params.post_data);
3367 break;
3368 case LOAD_TYPE_DATA:
3369 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
3370 entry->SetVirtualURL(params.virtual_url_for_data_url);
3371#if defined(OS_ANDROID)
3372 entry->SetDataURLAsString(params.data_url_as_string);
3373#endif
3374 entry->SetCanLoadLocalResources(params.can_load_local_resources);
3375 break;
clamy21718cc22018-06-13 13:34:243376 }
3377
3378 // TODO(clamy): NavigationEntry is meant for information that will be kept
3379 // after the navigation ended and therefore is not appropriate for
3380 // started_from_context_menu. Move started_from_context_menu to
3381 // NavigationUIData.
3382 entry->set_started_from_context_menu(params.started_from_context_menu);
3383
3384 return entry;
3385}
3386
clamyea99ea12018-05-28 13:54:233387std::unique_ptr<NavigationRequest>
Camille Lamy5193caa2018-10-12 11:59:423388NavigationControllerImpl::CreateNavigationRequestFromLoadParams(
3389 FrameTreeNode* node,
3390 const LoadURLParams& params,
3391 bool override_user_agent,
3392 bool should_replace_current_entry,
3393 bool has_user_gesture,
Antonio Sartori2f763d9d2021-04-21 10:04:143394 network::mojom::SourceLocationPtr source_location,
Camille Lamy5193caa2018-10-12 11:59:423395 ReloadType reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573396 NavigationEntryImpl* entry,
Scott Violetcf6ea7e2021-06-09 21:09:213397 FrameNavigationEntry* frame_entry) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573398 DCHECK_EQ(-1, GetIndexOfEntry(entry));
Camille Lamyb9ed3c52018-11-19 15:34:283399 DCHECK(frame_entry);
Nasko Oskov3c2f9e252019-01-10 17:45:533400 // All renderer-initiated navigations must have an initiator_origin.
3401 DCHECK(!params.is_renderer_initiated || params.initiator_origin.has_value());
Camille Lamyff7c4822018-11-07 15:42:513402
Camille Lamy5193caa2018-10-12 11:59:423403 GURL url_to_load;
3404 GURL virtual_url;
Anton Bikineevf62d1bf2021-05-15 17:56:073405 absl::optional<url::Origin> origin_to_commit =
3406 frame_entry ? frame_entry->committed_origin() : absl::nullopt;
Nasko Oskov03912102019-01-11 00:21:323407
Camille Lamy2baa8022018-10-19 16:43:173408 // For main frames, rewrite the URL if necessary and compute the virtual URL
3409 // that should be shown in the address bar.
3410 if (node->IsMainFrame()) {
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423411 bool ignored_reverse_on_redirect = false;
Camille Lamy2baa8022018-10-19 16:43:173412 RewriteUrlForNavigation(params.url, browser_context_, &url_to_load,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423413 &virtual_url, &ignored_reverse_on_redirect);
Camille Lamy5193caa2018-10-12 11:59:423414
Camille Lamy2baa8022018-10-19 16:43:173415 // For DATA loads, override the virtual URL.
3416 if (params.load_type == LOAD_TYPE_DATA)
3417 virtual_url = params.virtual_url_for_data_url;
Camille Lamy5193caa2018-10-12 11:59:423418
Camille Lamy2baa8022018-10-19 16:43:173419 if (virtual_url.is_empty())
3420 virtual_url = url_to_load;
3421
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573422 CHECK(virtual_url == entry->GetVirtualURL());
Camille Lamyb9ed3c52018-11-19 15:34:283423
Aran Gilman249eb122019-12-02 23:32:463424 // This is a LOG and not a CHECK/DCHECK as URL rewrite has non-deterministic
3425 // behavior: it is possible for two calls to RewriteUrlForNavigation to
3426 // return different results, leading to a different URL in the
3427 // NavigationRequest and FrameEntry. This will be fixed once we remove the
3428 // pending NavigationEntry, as we'll only make one call to
3429 // RewriteUrlForNavigation.
3430 VLOG_IF(1, (url_to_load != frame_entry->url()))
3431 << "NavigationRequest and FrameEntry have different URLs: "
3432 << url_to_load << " vs " << frame_entry->url();
Camille Lamyb9ed3c52018-11-19 15:34:283433
Camille Lamy2baa8022018-10-19 16:43:173434 // TODO(clamy): In order to remove the pending NavigationEntry,
Lukasz Anforowiczb2eb19b12020-01-25 00:40:423435 // |virtual_url| and |ignored_reverse_on_redirect| should be stored in the
Camille Lamy2baa8022018-10-19 16:43:173436 // NavigationRequest.
3437 } else {
3438 url_to_load = params.url;
3439 virtual_url = params.url;
Camille Lamyf664f7622019-01-07 19:28:243440 CHECK(!frame_entry || url_to_load == frame_entry->url());
Camille Lamy2baa8022018-10-19 16:43:173441 }
Camille Lamy5193caa2018-10-12 11:59:423442
Ehsan Karamad44fc72112019-02-26 18:15:473443 if (node->render_manager()->is_attaching_inner_delegate()) {
3444 // Avoid starting any new navigations since this node is now preparing for
3445 // attaching an inner delegate.
3446 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:203447 }
Camille Lamy5193caa2018-10-12 11:59:423448
Camille Lamy5193caa2018-10-12 11:59:423449 if (!IsValidURLForNavigation(node->IsMainFrame(), virtual_url, url_to_load))
3450 return nullptr;
3451
Kunihiko Sakamoto346a74e2021-03-10 08:57:483452 if (!DoesURLMatchOriginForNavigation(
3453 url_to_load, origin_to_commit,
3454 frame_entry->subresource_web_bundle_navigation_info())) {
Nasko Oskov03912102019-01-11 00:21:323455 DCHECK(false) << " url:" << url_to_load
3456 << " origin:" << origin_to_commit.value();
3457 return nullptr;
3458 }
3459
Camille Lamy5193caa2018-10-12 11:59:423460 // Determine if Previews should be used for the navigation.
Hiroki Nakagawa41366152020-07-27 18:31:403461 blink::PreviewsState previews_state =
3462 blink::PreviewsTypes::PREVIEWS_UNSPECIFIED;
Camille Lamy5193caa2018-10-12 11:59:423463 if (!node->IsMainFrame()) {
3464 // For subframes, use the state of the top-level frame.
3465 previews_state = node->frame_tree()
3466 ->root()
3467 ->current_frame_host()
3468 ->last_navigation_previews_state();
3469 }
3470
Camille Lamy5193caa2018-10-12 11:59:423471 // This will be used to set the Navigation Timing API navigationStart
3472 // parameter for browser navigations in new tabs (intents, tabs opened through
3473 // "Open link in new tab"). If the navigation must wait on the current
3474 // RenderFrameHost to execute its BeforeUnload event, the navigation start
3475 // will be updated when the BeforeUnload ack is received.
3476 base::TimeTicks navigation_start = base::TimeTicks::Now();
3477
danakjd83d706d2020-11-25 22:11:123478 // Look for a pending commit that is to another document in this
3479 // FrameTreeNode. If one exists, then the last committed URL will not be the
3480 // current URL by the time this navigation commits.
3481 bool has_pending_cross_document_commit =
3482 node->render_manager()->HasPendingCommitForCrossDocumentNavigation();
danakjb952ef12021-01-14 19:58:493483 bool is_currently_error_page = node->current_frame_host()->is_error_page();
danakjd83d706d2020-11-25 22:11:123484
Minggang Wangb9f3fa92021-07-01 15:30:313485 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjb952ef12021-01-14 19:58:493486 /*old_url=*/node->current_url(),
3487 /*new_url=*/url_to_load, reload_type, entry, *frame_entry,
3488 has_pending_cross_document_commit, is_currently_error_page,
3489 /*is_same_document_history_load=*/false);
Camille Lamy5193caa2018-10-12 11:59:423490
3491 // Create the NavigationParams based on |params|.
3492
Hiroki Nakagawa4ed61282021-06-18 05:37:233493 bool is_view_source_mode = entry->IsViewSourceMode();
3494 DCHECK_EQ(is_view_source_mode, virtual_url.SchemeIs(kViewSourceScheme));
Charlie Harrison8c113a32019-01-07 16:08:293495
Antonio Sartori6984c742021-08-26 08:03:413496 blink::NavigationDownloadPolicy download_policy = params.download_policy;
Hiroki Nakagawa4ed61282021-06-18 05:37:233497 // Update |download_policy| if the virtual URL is view-source.
Charlie Harrison8c113a32019-01-07 16:08:293498 if (is_view_source_mode)
Yeunjoo Choi3df791a2021-02-17 07:07:253499 download_policy.SetDisallowed(blink::NavigationDownloadType::kViewSource);
Charlie Harrison8c113a32019-01-07 16:08:293500
Camille Lamy5193caa2018-10-12 11:59:423501 const GURL& history_url_for_data_url =
3502 params.base_url_for_data_url.is_empty() ? GURL() : virtual_url;
Minggang Wangb9f3fa92021-07-01 15:30:313503 blink::mojom::CommonNavigationParamsPtr common_params =
3504 blink::mojom::CommonNavigationParams::New(
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513505 url_to_load, params.initiator_origin,
3506 blink::mojom::Referrer::New(params.referrer.url,
3507 params.referrer.policy),
Scott Violetcf6ea7e2021-06-09 21:09:213508 params.transition_type, navigation_type, download_policy,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513509 should_replace_current_entry, params.base_url_for_data_url,
3510 history_url_for_data_url, previews_state, navigation_start,
3511 params.load_type == LOAD_TYPE_HTTP_POST ? "POST" : "GET",
Antonio Sartori2f763d9d2021-04-21 10:04:143512 params.post_data, std::move(source_location),
arthursonzogniaf7c62c52020-02-12 10:49:413513 params.started_from_context_menu, has_user_gesture,
Antonio Sartori636adba2021-03-09 12:15:273514 false /* has_text_fragment_token */,
3515 network::mojom::CSPDisposition::CHECK, std::vector<int>(),
3516 params.href_translate,
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513517 false /* is_history_navigation_in_new_child_frame */,
Charlie Hu5ffc0152019-12-06 15:59:533518 params.input_start);
Camille Lamy5193caa2018-10-12 11:59:423519
Minggang Wangb9f3fa92021-07-01 15:30:313520 blink::mojom::CommitNavigationParamsPtr commit_params =
3521 blink::mojom::CommitNavigationParams::New(
Antonio Sartori3e8de6d2021-07-26 10:28:413522 frame_entry->committed_origin(),
3523 // The correct storage key will be computed before committing the
3524 // navigation.
3525 blink::StorageKey(), network::mojom::WebSandboxFlags(),
arthursonzognid5a8d0b2021-03-11 17:36:433526 override_user_agent, params.redirect_chain,
Lucas Furukawa Gadani81e294b2019-08-29 16:26:323527 std::vector<network::mojom::URLResponseHeadPtr>(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:143528 std::vector<net::RedirectInfo>(),
3529 std::string() /* post_content_type */, common_params->url,
3530 common_params->method, params.can_load_local_resources,
Minggang Wangb9f3fa92021-07-01 15:30:313531 frame_entry->page_state().ToEncodedData(), entry->GetUniqueID(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:143532 entry->GetSubframeUniqueNames(node), true /* intended_as_new_entry */,
3533 -1 /* pending_history_list_offset */,
3534 params.should_clear_history_list ? -1 : GetLastCommittedEntryIndex(),
3535 params.should_clear_history_list ? 0 : GetEntryCount(),
3536 false /* was_discarded */, is_view_source_mode,
Minggang Wangb9f3fa92021-07-01 15:30:313537 params.should_clear_history_list,
3538 blink::mojom::NavigationTiming::New(),
Anton Bikineevf62d1bf2021-05-15 17:56:073539 absl::nullopt /* appcache_host_id */,
Minggang Wangf59db47b2021-06-16 01:56:223540 blink::mojom::WasActivatedOption::kUnknown,
Lucas Furukawa Gadania9c45682019-07-31 22:05:143541 base::UnguessableToken::Create() /* navigation_token */,
Minggang Wang7ee0c742021-06-16 16:16:513542 std::vector<blink::mojom::PrefetchedSignedExchangeInfoPtr>(),
Lucas Furukawa Gadania9c45682019-07-31 22:05:143543#if defined(OS_ANDROID)
3544 std::string(), /* data_url_as_string */
3545#endif
arthursonzogni14379782020-05-15 09:09:273546 !params.is_renderer_initiated, /* is_browser_initiated */
Tsuyoshi Horoe86d7702019-11-29 01:52:473547 GURL() /* web_bundle_physical_url */,
Charlie Hu5ffc0152019-12-06 15:59:533548 GURL() /* base_url_override_for_web_bundle */,
Yue Ru Sun128804932020-09-30 22:19:173549 ukm::kInvalidSourceId /* document_ukm_source_id */,
Jiewei Qian0406fc02020-03-09 06:02:073550 node->pending_frame_policy(),
Domenic Denicola4778c35392020-06-25 21:25:163551 std::vector<std::string>() /* force_enabled_origin_trials */,
Domenic Denicola55701ee2021-01-14 00:18:333552 false /* origin_agent_cluster */,
Maks Orlovichc66745a2020-06-30 17:40:023553 std::vector<
Shuran Huanga055ce72020-07-23 14:13:213554 network::mojom::WebClientHintsType>() /* enabled_client_hints */,
Nate Chapind1fe3612021-04-16 20:45:573555 false /* is_cross_browsing_instance */, nullptr /* old_page_info */,
3556 -1 /* http_response_code */,
Minggang Wangb9f3fa92021-07-01 15:30:313557 std::vector<blink::mojom::
3558 AppHistoryEntryPtr>() /* app_history_back_entries */,
Nate Chapind1fe3612021-04-16 20:45:573559 std::vector<
Minggang Wangb9f3fa92021-07-01 15:30:313560 blink::mojom::
3561 AppHistoryEntryPtr>() /* app_history_forward_entries */,
Kenichi Ishibashi17ecfb62021-06-21 03:31:153562 std::vector<GURL>() /* early_hints_preloaded_resources */);
Camille Lamy5193caa2018-10-12 11:59:423563#if defined(OS_ANDROID)
3564 if (ValidateDataURLAsString(params.data_url_as_string)) {
Lucas Furukawa Gadania9c45682019-07-31 22:05:143565 commit_params->data_url_as_string = params.data_url_as_string->data();
Camille Lamy5193caa2018-10-12 11:59:423566 }
3567#endif
3568
Lucas Furukawa Gadania9c45682019-07-31 22:05:143569 commit_params->was_activated = params.was_activated;
Camille Lamy5193caa2018-10-12 11:59:423570
3571 // A form submission may happen here if the navigation is a renderer-initiated
3572 // form submission that took the OpenURL path.
3573 scoped_refptr<network::ResourceRequestBody> request_body = params.post_data;
3574
3575 // extra_headers in params are \n separated; NavigationRequests want \r\n.
3576 std::string extra_headers_crlf;
3577 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
Yao Xiaodc5ed102019-06-04 19:19:093578
3579 auto navigation_request = NavigationRequest::CreateBrowserInitiated(
Lucas Furukawa Gadania9c45682019-07-31 22:05:143580 node, std::move(common_params), std::move(commit_params),
Takashi Toyoshimae87b7be2021-01-22 11:51:083581 !params.is_renderer_initiated, params.was_opener_suppressed,
Antonio Sartori9a82f6f32020-12-14 09:22:453582 params.initiator_frame_token.has_value()
3583 ? &(params.initiator_frame_token.value())
3584 : nullptr,
3585 params.initiator_process_id, extra_headers_crlf, frame_entry, entry,
3586 request_body,
John Delaney50425f82020-04-07 16:26:213587 params.navigation_ui_data ? params.navigation_ui_data->Clone() : nullptr,
Daniel Hosseinianf0fbfb42021-09-08 02:20:473588 params.impression, params.is_pdf);
Yao Xiaodc5ed102019-06-04 19:19:093589 navigation_request->set_from_download_cross_origin_redirect(
3590 params.from_download_cross_origin_redirect);
3591 return navigation_request;
Camille Lamy5193caa2018-10-12 11:59:423592}
3593
3594std::unique_ptr<NavigationRequest>
3595NavigationControllerImpl::CreateNavigationRequestFromEntry(
clamyea99ea12018-05-28 13:54:233596 FrameTreeNode* frame_tree_node,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573597 NavigationEntryImpl* entry,
clamyea99ea12018-05-28 13:54:233598 FrameNavigationEntry* frame_entry,
3599 ReloadType reload_type,
3600 bool is_same_document_history_load,
Kush Sinhaa8856ecb2021-09-01 14:28:313601 bool is_history_navigation_in_new_child_frame) {
Alex Moshchuk47d1a4bd2020-06-01 22:15:343602 DCHECK(frame_entry);
clamyea99ea12018-05-28 13:54:233603 GURL dest_url = frame_entry->url();
Anton Bikineevf62d1bf2021-05-15 17:56:073604 absl::optional<url::Origin> origin_to_commit =
Nasko Oskov03912102019-01-11 00:21:323605 frame_entry->committed_origin();
3606
clamyea99ea12018-05-28 13:54:233607 Referrer dest_referrer = frame_entry->referrer();
Ryan Sturmc4da1992018-07-17 16:59:013608 if (reload_type == ReloadType::ORIGINAL_REQUEST_URL &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573609 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
clamyea99ea12018-05-28 13:54:233610 // We may have been redirected when navigating to the current URL.
3611 // Use the URL the user originally intended to visit as signaled by the
3612 // ReloadType, if it's valid and if a POST wasn't involved; the latter
Ryan Sturmc4da1992018-07-17 16:59:013613 // case avoids issues with sending data to the wrong page.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573614 dest_url = entry->GetOriginalRequestURL();
clamyea99ea12018-05-28 13:54:233615 dest_referrer = Referrer();
Nasko Oskov03912102019-01-11 00:21:323616 origin_to_commit.reset();
clamyea99ea12018-05-28 13:54:233617 }
3618
Ehsan Karamad44fc72112019-02-26 18:15:473619 if (frame_tree_node->render_manager()->is_attaching_inner_delegate()) {
3620 // Avoid starting any new navigations since this node is now preparing for
3621 // attaching an inner delegate.
3622 return nullptr;
Ehsan Karamaddd9a4142018-12-04 20:38:203623 }
3624
Camille Lamy5193caa2018-10-12 11:59:423625 if (!IsValidURLForNavigation(frame_tree_node->IsMainFrame(),
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573626 entry->GetVirtualURL(), dest_url)) {
clamyea99ea12018-05-28 13:54:233627 return nullptr;
3628 }
3629
Kunihiko Sakamoto346a74e2021-03-10 08:57:483630 if (!DoesURLMatchOriginForNavigation(
3631 dest_url, origin_to_commit,
3632 frame_entry->subresource_web_bundle_navigation_info())) {
3633 DCHECK(false) << " url:" << dest_url
3634 << " origin:" << origin_to_commit.value();
Nasko Oskov03912102019-01-11 00:21:323635 return nullptr;
3636 }
3637
clamyea99ea12018-05-28 13:54:233638 // Determine if Previews should be used for the navigation.
Hiroki Nakagawa41366152020-07-27 18:31:403639 blink::PreviewsState previews_state =
3640 blink::PreviewsTypes::PREVIEWS_UNSPECIFIED;
clamyea99ea12018-05-28 13:54:233641 if (!frame_tree_node->IsMainFrame()) {
3642 // For subframes, use the state of the top-level frame.
3643 previews_state = frame_tree_node->frame_tree()
3644 ->root()
3645 ->current_frame_host()
3646 ->last_navigation_previews_state();
clamyea99ea12018-05-28 13:54:233647 }
3648
clamyea99ea12018-05-28 13:54:233649 // This will be used to set the Navigation Timing API navigationStart
3650 // parameter for browser navigations in new tabs (intents, tabs opened through
3651 // "Open link in new tab"). If the navigation must wait on the current
3652 // RenderFrameHost to execute its BeforeUnload event, the navigation start
3653 // will be updated when the BeforeUnload ack is received.
3654 base::TimeTicks navigation_start = base::TimeTicks::Now();
clamyea99ea12018-05-28 13:54:233655
danakjd83d706d2020-11-25 22:11:123656 // Look for a pending commit that is to another document in this
3657 // FrameTreeNode. If one exists, then the last committed URL will not be the
3658 // current URL by the time this navigation commits.
3659 bool has_pending_cross_document_commit =
3660 frame_tree_node->render_manager()
3661 ->HasPendingCommitForCrossDocumentNavigation();
danakjb952ef12021-01-14 19:58:493662 bool is_currently_error_page =
3663 frame_tree_node->current_frame_host()->is_error_page();
danakjd83d706d2020-11-25 22:11:123664
Minggang Wangb9f3fa92021-07-01 15:30:313665 blink::mojom::NavigationType navigation_type = GetNavigationType(
danakjd83d706d2020-11-25 22:11:123666 /*old_url=*/frame_tree_node->current_url(),
3667 /*new_url=*/dest_url, reload_type, entry, *frame_entry,
danakjb952ef12021-01-14 19:58:493668 has_pending_cross_document_commit, is_currently_error_page,
3669 is_same_document_history_load);
Camille Lamy5193caa2018-10-12 11:59:423670
3671 // A form submission may happen here if the navigation is a
3672 // back/forward/reload navigation that does a form resubmission.
3673 scoped_refptr<network::ResourceRequestBody> request_body;
3674 std::string post_content_type;
3675 if (frame_entry->method() == "POST") {
3676 request_body = frame_entry->GetPostData(&post_content_type);
3677 // Might have a LF at end.
Peter Kastingb53b81912021-04-28 19:23:303678 post_content_type = std::string(
3679 base::TrimWhitespaceASCII(post_content_type, base::TRIM_ALL));
Camille Lamy5193caa2018-10-12 11:59:423680 }
3681
3682 // Create the NavigationParams based on |entry| and |frame_entry|.
Minggang Wangb9f3fa92021-07-01 15:30:313683 blink::mojom::CommonNavigationParamsPtr common_params =
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513684 entry->ConstructCommonNavigationParams(
3685 *frame_entry, request_body, dest_url,
3686 blink::mojom::Referrer::New(dest_referrer.url, dest_referrer.policy),
3687 navigation_type, previews_state, navigation_start,
Charlie Hu5ffc0152019-12-06 15:59:533688 base::TimeTicks() /* input_start */);
Lucas Furukawa Gadanief8290a2019-07-29 20:27:513689 common_params->is_history_navigation_in_new_child_frame =
Arthur Hemerybee4a752019-05-29 10:50:553690 is_history_navigation_in_new_child_frame;
Camille Lamy5193caa2018-10-12 11:59:423691
3692 // TODO(clamy): |intended_as_new_entry| below should always be false once
3693 // Reload no longer leads to this being called for a pending NavigationEntry
3694 // of index -1.
Minggang Wangb9f3fa92021-07-01 15:30:313695 blink::mojom::CommitNavigationParamsPtr commit_params =
Lucas Furukawa Gadania9c45682019-07-31 22:05:143696 entry->ConstructCommitNavigationParams(
3697 *frame_entry, common_params->url, origin_to_commit,
3698 common_params->method, entry->GetSubframeUniqueNames(frame_tree_node),
3699 GetPendingEntryIndex() == -1 /* intended_as_new_entry */,
Charlie Hu5ffc0152019-12-06 15:59:533700 GetIndexOfEntry(entry), GetLastCommittedEntryIndex(), GetEntryCount(),
3701 frame_tree_node->pending_frame_policy());
Lucas Furukawa Gadania9c45682019-07-31 22:05:143702 commit_params->post_content_type = post_content_type;
Camille Lamy5193caa2018-10-12 11:59:423703
clamyea99ea12018-05-28 13:54:233704 return NavigationRequest::CreateBrowserInitiated(
Lucas Furukawa Gadania9c45682019-07-31 22:05:143705 frame_tree_node, std::move(common_params), std::move(commit_params),
Kush Sinhaa8856ecb2021-09-01 14:28:313706 !entry->is_renderer_initiated(), false /* was_opener_suppressed */,
Takashi Toyoshimae87b7be2021-01-22 11:51:083707 nullptr /* initiator_frame_token */,
Antonio Sartori9a82f6f32020-12-14 09:22:453708 ChildProcessHost::kInvalidUniqueID /* initiator_process_id */,
3709 entry->extra_headers(), frame_entry, entry, request_body,
Daniel Hosseinianf0fbfb42021-09-08 02:20:473710 nullptr /* navigation_ui_data */, absl::nullopt /* impression */,
3711 false /* is_pdf */);
clamyea99ea12018-05-28 13:54:233712}
3713
[email protected]d202a7c2012-01-04 07:53:473714void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:213715 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:273716 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:403717
Takashi Toyoshimaea534ef22021-07-21 03:27:593718 // We need to notify the ssl_manager_ before the WebContents so the
[email protected]df1af242009-05-01 00:11:403719 // location bar will have up-to-date information about the security style
3720 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:133721 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:403722
[email protected]7f924832014-08-09 05:57:223723 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:573724 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:463725
[email protected]b0f724c2013-09-05 04:21:133726 // TODO(avi): Remove. http://crbug.com/170921
3727 NotificationDetails notification_details =
3728 Details<LoadCommittedDetails>(details);
Aran Gilman37d11632019-10-08 23:07:153729 NotificationService::current()->Notify(NOTIFICATION_NAV_ENTRY_COMMITTED,
3730 Source<NavigationController>(this),
3731 notification_details);
initial.commit09911bf2008-07-26 23:55:293732}
3733
initial.commit09911bf2008-07-26 23:55:293734// static
[email protected]d202a7c2012-01-04 07:53:473735size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:233736 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
Aran Gilman37d11632019-10-08 23:07:153737 return max_entry_count_for_testing_;
Miyoung Shin1c565c912021-03-17 12:11:213738 return blink::kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:233739}
3740
[email protected]d202a7c2012-01-04 07:53:473741void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:223742 if (is_active && needs_reload_)
3743 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:293744}
3745
[email protected]d202a7c2012-01-04 07:53:473746void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:293747 if (!needs_reload_)
3748 return;
3749
Bo Liucdfa4b12018-11-06 00:21:443750 UMA_HISTOGRAM_ENUMERATION("Navigation.LoadIfNecessaryType",
3751 needs_reload_type_);
3752
initial.commit09911bf2008-07-26 23:55:293753 // Calling Reload() results in ignoring state, and not loading.
3754 // Explicitly use NavigateToPendingEntry so that the renderer uses the
3755 // cached state.
avicc872d7242015-08-19 21:26:343756 if (pending_entry_) {
Dave Tapuska8bfd84c2019-03-26 20:47:163757 NavigateToExistingPendingEntry(ReloadType::NONE,
Kush Sinhaa8856ecb2021-09-01 14:28:313758 FrameTreeNode::kFrameTreeNodeInvalidId);
avicc872d7242015-08-19 21:26:343759 } else if (last_committed_entry_index_ != -1) {
arthursonzogni5c4c202d2017-04-25 23:41:273760 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:343761 pending_entry_index_ = last_committed_entry_index_;
Dave Tapuska8bfd84c2019-03-26 20:47:163762 NavigateToExistingPendingEntry(ReloadType::NONE,
Kush Sinhaa8856ecb2021-09-01 14:28:313763 FrameTreeNode::kFrameTreeNodeInvalidId);
avicc872d7242015-08-19 21:26:343764 } else {
3765 // If there is something to reload, the successful reload will clear the
3766 // |needs_reload_| flag. Otherwise, just do it here.
3767 needs_reload_ = false;
3768 }
initial.commit09911bf2008-07-26 23:55:293769}
3770
Carlos IL42b416592019-10-07 23:10:363771void NavigationControllerImpl::LoadPostCommitErrorPage(
3772 RenderFrameHost* render_frame_host,
3773 const GURL& url,
3774 const std::string& error_page_html,
3775 net::Error error) {
Rakina Zata Amni919b7922020-12-11 09:03:133776 RenderFrameHostImpl* rfhi =
3777 static_cast<RenderFrameHostImpl*>(render_frame_host);
Sreeja Kamishettydb8e2892021-03-10 09:30:583778
3779 // Only active documents can load post-commit error pages:
3780 // - If the document is in pending deletion, the browser already committed to
3781 // destroying this RenderFrameHost so ignore loading the error page.
3782 // - If the document is in back-forward cache, it's not allowed to navigate as
3783 // it should remain frozen. Ignore the request and evict the document from
3784 // back-forward cache.
3785 // - If the document is prerendering, it can navigate but when loading error
3786 // pages, cancel prerendering.
Fergal Daly1336ac642021-09-14 15:13:113787 if (rfhi->IsInactiveAndDisallowActivation(
3788 DisallowActivationReasonId::kLoadPostCommitErrorPage)) {
Sreeja Kamishettydb8e2892021-03-10 09:30:583789 return;
Fergal Daly1336ac642021-09-14 15:13:113790 }
Sreeja Kamishettydb8e2892021-03-10 09:30:583791
Rakina Zata Amni919b7922020-12-11 09:03:133792 FrameTreeNode* node = rfhi->frame_tree_node();
John Delaney131ad362019-08-08 21:57:413793
Minggang Wangb9f3fa92021-07-01 15:30:313794 blink::mojom::CommonNavigationParamsPtr common_params =
Minggang Wanga13c796e2021-07-02 05:54:433795 blink::CreateCommonNavigationParams();
Rakina Zata Amnid2da1542020-12-23 00:52:593796 // |url| might be empty, such as when LoadPostCommitErrorPage happens before
3797 // the frame actually committed (e.g. iframe with "src" set to a
3798 // slow-responding URL). We should rewrite the URL to about:blank in this
3799 // case, as the renderer will only think a page is an error page if it has a
3800 // non-empty unreachable URL.
Rakina Zata Amni919b7922020-12-11 09:03:133801 common_params->url = url.is_empty() ? GURL("about:blank") : url;
Minggang Wangb9f3fa92021-07-01 15:30:313802 blink::mojom::CommitNavigationParamsPtr commit_params =
Minggang Wanga13c796e2021-07-02 05:54:433803 blink::CreateCommitNavigationParams();
Antonio Sartori58591c892021-04-21 06:54:333804 commit_params->original_url = common_params->url;
John Delaney131ad362019-08-08 21:57:413805
arthursonzogni70ac7302020-05-28 08:49:053806 // Error pages have a fully permissive FramePolicy.
3807 // TODO(arthursonzogni): Consider providing the minimal capabilities to the
3808 // error pages.
3809 commit_params->frame_policy = blink::FramePolicy();
3810
John Delaney131ad362019-08-08 21:57:413811 std::unique_ptr<NavigationRequest> navigation_request =
3812 NavigationRequest::CreateBrowserInitiated(
3813 node, std::move(common_params), std::move(commit_params),
Takashi Toyoshimae87b7be2021-01-22 11:51:083814 true /* browser_initiated */, false /* was_opener_suppressed */,
Lingqi Chi82efa95e2020-12-29 05:31:193815 nullptr /* initiator_frame_token */,
Antonio Sartori9a82f6f32020-12-14 09:22:453816 ChildProcessHost::kInvalidUniqueID /* initiator_process_id */,
John Delaneyf43556d2020-05-04 23:19:063817 "" /* extra_headers */, nullptr /* frame_entry */,
3818 nullptr /* entry */, nullptr /* post_body */,
Daniel Hosseinianf0fbfb42021-09-08 02:20:473819 nullptr /* navigation_ui_data */, absl::nullopt /* impression */,
3820 false /* is_pdf */);
Carlos IL42b416592019-10-07 23:10:363821 navigation_request->set_post_commit_error_page_html(error_page_html);
John Delaney131ad362019-08-08 21:57:413822 navigation_request->set_net_error(error);
3823 node->CreatedNavigationRequest(std::move(navigation_request));
3824 DCHECK(node->navigation_request());
3825 node->navigation_request()->BeginNavigation();
3826}
3827
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573828void NavigationControllerImpl::NotifyEntryChanged(NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:213829 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:093830 det.changed_entry = entry;
Aran Gilman37d11632019-10-08 23:07:153831 det.index = GetIndexOfEntry(NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:143832 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:293833}
3834
[email protected]d202a7c2012-01-04 07:53:473835void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:363836 RestoreType type) {
[email protected]a26023822011-12-29 00:23:553837 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:363838 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:293839
initial.commit09911bf2008-07-26 23:55:293840 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:293841}
[email protected]765b35502008-08-21 00:51:203842
arthursonzogni69a6a1b2019-09-17 09:23:003843void NavigationControllerImpl::DiscardNonCommittedEntries() {
Michael Thiessen9b14d512019-09-23 21:19:473844 // Avoid sending a notification if there is nothing to discard.
Michael Thiessenc5676d22019-09-25 22:32:103845 // TODO(mthiesse): Temporarily checking failed_pending_entry_id_ to help
3846 // diagnose https://bugs.chromium.org/p/chromium/issues/detail?id=1007570.
Carlos IL4dea8902020-05-26 15:14:293847 if (!pending_entry_ && failed_pending_entry_id_ == 0) {
Michael Thiessen9b14d512019-09-23 21:19:473848 return;
Michael Thiessenc5676d22019-09-25 22:32:103849 }
avi45a72532015-04-07 21:01:453850 DiscardPendingEntry(false);
arthursonzogni69a6a1b2019-09-17 09:23:003851 if (delegate_)
3852 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]b12eb222013-09-10 00:11:483853}
3854
avi7c6f35e2015-05-08 17:52:383855int NavigationControllerImpl::GetEntryIndexWithUniqueID(
3856 int nav_entry_id) const {
3857 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
3858 if (entries_[i]->GetUniqueID() == nav_entry_id)
3859 return i;
3860 }
3861 return -1;
3862}
3863
[email protected]d202a7c2012-01-04 07:53:473864void NavigationControllerImpl::InsertEntriesFrom(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573865 NavigationControllerImpl* source,
[email protected]e1cd5452010-08-26 18:03:253866 int max_index) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573867 DCHECK_LE(max_index, source->GetEntryCount());
Nate Chapin214a86a2021-06-21 20:35:573868 std::unique_ptr<NavigationEntryRestoreContextImpl> context =
3869 std::make_unique<NavigationEntryRestoreContextImpl>();
[email protected]e1cd5452010-08-26 18:03:253870 for (int i = 0; i < max_index; i++) {
Nate Chapin9f169072021-06-09 19:32:373871 // Normally, cloning a NavigationEntryImpl results in sharing
3872 // FrameNavigationEntries between the original and the clone. However, when
3873 // cloning from a different NavigationControllerImpl, we want to fork the
3874 // FrameNavigationEntries.
Nate Chapin9f169072021-06-09 19:32:373875 entries_.insert(entries_.begin() + i,
Nate Chapin214a86a2021-06-21 20:35:573876 source->entries_[i]->CloneWithoutSharing(context.get()));
[email protected]e1cd5452010-08-26 18:03:253877 }
arthursonzogni5c4c202d2017-04-25 23:41:273878 DCHECK(pending_entry_index_ == -1 ||
3879 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:253880}
[email protected]c5b88d82012-10-06 17:03:333881
3882void NavigationControllerImpl::SetGetTimestampCallbackForTest(
Makoto Shimazud2aa2202019-10-09 13:57:183883 const base::RepeatingCallback<base::Time()>& get_timestamp_callback) {
[email protected]c5b88d82012-10-06 17:03:333884 get_timestamp_callback_ = get_timestamp_callback;
3885}
[email protected]8ff00d72012-10-23 19:12:213886
Shivani Sharmaffb32b82019-04-09 16:58:473887// History manipulation intervention:
3888void NavigationControllerImpl::SetShouldSkipOnBackForwardUIIfNeeded(
Shivani Sharmaffb32b82019-04-09 16:58:473889 bool replace_entry,
3890 bool previous_document_was_activated,
Alexander Timine3ec4192020-04-20 16:39:403891 bool is_renderer_initiated,
3892 ukm::SourceId previous_page_load_ukm_source_id) {
Shivani Sharma712d5d72019-04-16 21:56:453893 // Note that for a subframe, previous_document_was_activated is true if the
3894 // gesture happened in any subframe (propagated to main frame) or in the main
3895 // frame itself.
Shivani Sharmaffb32b82019-04-09 16:58:473896 if (replace_entry || previous_document_was_activated ||
shivanigithubcceeacf2020-03-06 20:00:273897 !is_renderer_initiated) {
Shivani Sharmaffb32b82019-04-09 16:58:473898 return;
3899 }
3900 if (last_committed_entry_index_ == -1)
3901 return;
3902
Shivani Sharmac4cc8922019-04-18 03:11:173903 SetSkippableForSameDocumentEntries(last_committed_entry_index_, true);
Shivani Sharmaffb32b82019-04-09 16:58:473904
Alexander Timine3ec4192020-04-20 16:39:403905 // Log UKM with the URL we are navigating away from.
3906 ukm::builders::HistoryManipulationIntervention(
3907 previous_page_load_ukm_source_id)
3908 .Record(ukm::UkmRecorder::Get());
Shivani Sharmaffb32b82019-04-09 16:58:473909}
3910
Shivani Sharmac4cc8922019-04-18 03:11:173911void NavigationControllerImpl::SetSkippableForSameDocumentEntries(
3912 int reference_index,
3913 bool skippable) {
3914 auto* reference_entry = GetEntryAtIndex(reference_index);
3915 reference_entry->set_should_skip_on_back_forward_ui(skippable);
3916
3917 int64_t document_sequence_number =
3918 reference_entry->root_node()->frame_entry->document_sequence_number();
3919 for (int index = 0; index < GetEntryCount(); index++) {
3920 auto* entry = GetEntryAtIndex(index);
3921 if (entry->root_node()->frame_entry->document_sequence_number() ==
3922 document_sequence_number) {
3923 entry->set_should_skip_on_back_forward_ui(skippable);
3924 }
3925 }
3926}
3927
arthursonzogni66f711c2019-10-08 14:40:363928std::unique_ptr<NavigationControllerImpl::PendingEntryRef>
3929NavigationControllerImpl::ReferencePendingEntry() {
3930 DCHECK(pending_entry_);
3931 auto pending_entry_ref =
3932 std::make_unique<PendingEntryRef>(weak_factory_.GetWeakPtr());
3933 pending_entry_refs_.insert(pending_entry_ref.get());
3934 return pending_entry_ref;
3935}
3936
3937void NavigationControllerImpl::PendingEntryRefDeleted(PendingEntryRef* ref) {
3938 // Ignore refs that don't correspond to the current pending entry.
3939 auto it = pending_entry_refs_.find(ref);
3940 if (it == pending_entry_refs_.end())
3941 return;
3942 pending_entry_refs_.erase(it);
3943
3944 if (!pending_entry_refs_.empty())
3945 return;
3946
3947 // The pending entry may be deleted before the last PendingEntryRef.
3948 if (!pending_entry_)
3949 return;
3950
3951 // We usually clear the pending entry when the matching NavigationRequest
3952 // fails, so that an arbitrary URL isn't left visible above a committed page.
3953 //
3954 // However, we do preserve the pending entry in some cases, such as on the
3955 // initial navigation of an unmodified blank tab. We also allow the delegate
3956 // to say when it's safe to leave aborted URLs in the omnibox, to let the
3957 // user edit the URL and try again. This may be useful in cases that the
3958 // committed page cannot be attacker-controlled. In these cases, we still
3959 // allow the view to clear the pending entry and typed URL if the user
3960 // requests (e.g., hitting Escape with focus in the address bar).
3961 //
3962 // Do not leave the pending entry visible if it has an invalid URL, since this
3963 // might be formatted in an unexpected or unsafe way.
3964 // TODO(creis): Block navigations to invalid URLs in https://crbug.com/850824.
arthursonzogni66f711c2019-10-08 14:40:363965 bool should_preserve_entry =
3966 (pending_entry_ == GetVisibleEntry()) &&
3967 pending_entry_->GetURL().is_valid() &&
3968 (IsUnmodifiedBlankTab() || delegate_->ShouldPreserveAbortedURLs());
3969 if (should_preserve_entry)
3970 return;
3971
3972 DiscardPendingEntry(true);
3973 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
3974}
3975
Titouan Rigoudy6ec70402021-02-02 15:42:193976std::unique_ptr<PolicyContainerPolicies>
3977NavigationControllerImpl::ComputePolicyContainerPoliciesForFrameEntry(
Antonio Sartori78a749f2020-11-30 12:03:393978 RenderFrameHostImpl* rfh,
3979 bool is_same_document,
3980 NavigationRequest* request) {
Titouan Rigoudy6ec70402021-02-02 15:42:193981 if (!ShouldStorePolicyContainerPoliciesInFrameNavigationEntry(request))
Antonio Sartori78a749f2020-11-30 12:03:393982 return nullptr;
3983
3984 if (is_same_document) {
Charlie Reis73e356242021-04-02 17:10:313985 // TODO(https://crbug.com/524208): Remove this nullptr check when we can
3986 // ensure we always have a FrameNavigationEntry here.
3987 if (!GetLastCommittedEntry())
3988 return nullptr;
3989
Antonio Sartori78a749f2020-11-30 12:03:393990 FrameNavigationEntry* previous_frame_entry =
3991 GetLastCommittedEntry()->GetFrameEntry(rfh->frame_tree_node());
3992
3993 // TODO(https://crbug.com/608402): Remove this nullptr check when we can
3994 // ensure we always have a FrameNavigationEntry here.
3995 if (!previous_frame_entry)
3996 return nullptr;
3997
Titouan Rigoudy6ec70402021-02-02 15:42:193998 const PolicyContainerPolicies* previous_policies =
3999 previous_frame_entry->policy_container_policies();
Antonio Sartori78a749f2020-11-30 12:03:394000
Titouan Rigoudy6ec70402021-02-02 15:42:194001 if (!previous_policies)
Antonio Sartori78a749f2020-11-30 12:03:394002 return nullptr;
4003
4004 // Make a copy of the policy container for the new FrameNavigationEntry.
Antonio Sartori5d09b30f2021-03-02 09:27:164005 return previous_policies->Clone();
Antonio Sartori78a749f2020-11-30 12:03:394006 }
4007
Antonio Sartori4f5373792021-05-31 10:56:474008 return rfh->policy_container_host()->policies().Clone();
Antonio Sartori78a749f2020-11-30 12:03:394009}
4010
Hayato Ito2c8c08d02021-06-23 03:38:434011void NavigationControllerImpl::BroadcastHistoryOffsetAndLength() {
Carlos Caballeroede6f8c2021-01-28 11:01:504012 OPTIONAL_TRACE_EVENT2(
Hayato Ito2c8c08d02021-06-23 03:38:434013 "content", "NavigationControllerImpl::BroadcastHistoryOffsetAndLength",
4014 "history_offset", GetLastCommittedEntryIndex(), "history_length",
4015 GetEntryCount());
Carlos Caballeroede6f8c2021-01-28 11:01:504016
4017 auto callback = base::BindRepeating(
4018 [](int history_offset, int history_length, RenderViewHostImpl* rvh) {
4019 if (auto& broadcast = rvh->GetAssociatedPageBroadcast()) {
4020 broadcast->SetHistoryOffsetAndLength(history_offset, history_length);
4021 }
4022 },
Hayato Ito2c8c08d02021-06-23 03:38:434023 GetLastCommittedEntryIndex(), GetEntryCount());
Carlos Caballeroede6f8c2021-01-28 11:01:504024 frame_tree_.root()->render_manager()->ExecutePageBroadcastMethod(callback);
4025}
4026
4027void NavigationControllerImpl::DidAccessInitialMainDocument() {
4028 // We may have left a failed browser-initiated navigation in the address bar
4029 // to let the user edit it and try again. Clear it now that content might
4030 // show up underneath it.
4031 if (!frame_tree_.IsLoading() && GetPendingEntry())
4032 DiscardPendingEntry(false);
4033
4034 // Update the URL display.
4035 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
4036}
4037
4038void NavigationControllerImpl::UpdateStateForFrame(
4039 RenderFrameHostImpl* rfhi,
4040 const blink::PageState& page_state) {
Alexander Timinf785f342021-03-18 00:00:564041 OPTIONAL_TRACE_EVENT1("content",
4042 "NavigationControllerImpl::UpdateStateForFrame",
4043 "render_frame_host", rfhi);
Carlos Caballeroede6f8c2021-01-28 11:01:504044 // The state update affects the last NavigationEntry associated with the given
4045 // |render_frame_host|. This may not be the last committed NavigationEntry (as
4046 // in the case of an UpdateState from a frame being swapped out). We track
4047 // which entry this is in the RenderFrameHost's nav_entry_id.
4048 NavigationEntryImpl* entry = GetEntryWithUniqueID(rfhi->nav_entry_id());
4049 if (!entry)
4050 return;
4051
4052 FrameNavigationEntry* frame_entry =
4053 entry->GetFrameEntry(rfhi->frame_tree_node());
4054 if (!frame_entry)
4055 return;
4056
4057 // The SiteInstance might not match if we do a cross-process navigation with
4058 // replacement (e.g., auto-subframe), in which case the swap out of the old
4059 // RenderFrameHost runs in the background after the old FrameNavigationEntry
4060 // has already been replaced and destroyed.
4061 if (frame_entry->site_instance() != rfhi->GetSiteInstance())
4062 return;
4063
4064 if (page_state == frame_entry->page_state())
4065 return; // Nothing to update.
4066
4067 DCHECK(page_state.IsValid()) << "Shouldn't set an empty PageState.";
4068
4069 // The document_sequence_number and item_sequence_number recorded in the
4070 // FrameNavigationEntry should not differ from the one coming with the update,
4071 // since it must come from the same document. Do not update it if a difference
4072 // is detected, as this indicates that |frame_entry| is not the correct one.
4073 blink::ExplodedPageState exploded_state;
4074 if (!blink::DecodePageState(page_state.ToEncodedData(), &exploded_state))
4075 return;
4076
4077 if (exploded_state.top.document_sequence_number !=
4078 frame_entry->document_sequence_number() ||
4079 exploded_state.top.item_sequence_number !=
4080 frame_entry->item_sequence_number()) {
4081 return;
4082 }
4083
4084 frame_entry->SetPageState(page_state);
4085 NotifyEntryChanged(entry);
4086}
4087
Aaron Colwellb731a0ae2021-03-19 19:14:474088void NavigationControllerImpl::OnStoragePartitionIdAdded(
4089 const StoragePartitionId& partition_id) {
4090 auto it = partition_config_to_id_map_.insert(
4091 std::make_pair(partition_id.config(), partition_id));
4092 bool successful_insert = it.second;
Aaron Colwellb731a0ae2021-03-19 19:14:474093 if (!successful_insert) {
4094 LogStoragePartitionIdCrashKeys(it.first->second, partition_id);
4095 }
Sharon Yangd4f48792021-06-30 17:02:534096 CHECK(successful_insert);
Aaron Colwellb731a0ae2021-03-19 19:14:474097}
4098
4099void NavigationControllerImpl::LogStoragePartitionIdCrashKeys(
4100 const StoragePartitionId& original_partition_id,
4101 const StoragePartitionId& new_partition_id) {
4102 base::debug::SetCrashKeyString(
4103 base::debug::AllocateCrashKeyString("original_partition_id",
4104 base::debug::CrashKeySize::Size256),
4105 original_partition_id.ToString());
4106
4107 base::debug::SetCrashKeyString(
4108 base::debug::AllocateCrashKeyString("new_partition_id",
4109 base::debug::CrashKeySize::Size256),
4110 new_partition_id.ToString());
Aaron Colwellb731a0ae2021-03-19 19:14:474111}
4112
Minggang Wangb9f3fa92021-07-01 15:30:314113std::vector<blink::mojom::AppHistoryEntryPtr>
Nate Chapind1fe3612021-04-16 20:45:574114NavigationControllerImpl::PopulateSingleAppHistoryEntryVector(
4115 Direction direction,
4116 int entry_index,
4117 const url::Origin& pending_origin,
4118 FrameTreeNode* node,
4119 SiteInstance* site_instance,
4120 int64_t previous_item_sequence_number) {
Minggang Wangb9f3fa92021-07-01 15:30:314121 std::vector<blink::mojom::AppHistoryEntryPtr> entries;
Nate Chapind1fe3612021-04-16 20:45:574122 int offset = direction == Direction::kForward ? 1 : -1;
4123 for (int i = entry_index + offset; i >= 0 && i < GetEntryCount();
4124 i += offset) {
4125 FrameNavigationEntry* frame_entry = GetEntryAtIndex(i)->GetFrameEntry(node);
4126 if (!frame_entry || !frame_entry->committed_origin())
4127 break;
4128 if (site_instance != frame_entry->site_instance())
4129 break;
4130 if (!pending_origin.IsSameOriginWith(*frame_entry->committed_origin()))
4131 break;
4132 if (previous_item_sequence_number == frame_entry->item_sequence_number())
4133 continue;
4134 blink::ExplodedPageState exploded_page_state;
4135 if (blink::DecodePageState(frame_entry->page_state().ToEncodedData(),
4136 &exploded_page_state)) {
4137 blink::ExplodedFrameState frame_state = exploded_page_state.top;
Minggang Wangb9f3fa92021-07-01 15:30:314138 blink::mojom::AppHistoryEntryPtr entry =
4139 blink::mojom::AppHistoryEntry::New(
4140 frame_state.app_history_key.value_or(std::u16string()),
4141 frame_state.app_history_id.value_or(std::u16string()),
4142 frame_state.url_string.value_or(std::u16string()));
Nate Chapind1fe3612021-04-16 20:45:574143 DCHECK(pending_origin.CanBeDerivedFrom(GURL(entry->url)));
4144 entries.push_back(std::move(entry));
4145 previous_item_sequence_number = frame_entry->item_sequence_number();
4146 }
4147 }
4148 // If |entries| was constructed by iterating backwards from
4149 // |entry_index|, it's latest-at-the-front, but the renderer will want it
4150 // earliest-at-the-front. Reverse it.
4151 if (direction == Direction::kBack)
4152 std::reverse(entries.begin(), entries.end());
4153 return entries;
4154}
4155
4156void NavigationControllerImpl::PopulateAppHistoryEntryVectors(
4157 NavigationRequest* request) {
4158 url::Origin pending_origin =
4159 request->commit_params().origin_to_commit
4160 ? *request->commit_params().origin_to_commit
4161 : url::Origin::Create(request->common_params().url);
4162
4163 FrameTreeNode* node = request->frame_tree_node();
4164 scoped_refptr<SiteInstance> site_instance =
4165 request->GetRenderFrameHost()->GetSiteInstance();
4166
4167 // NOTE: |entry_index| is an estimate of the index where this entry will
4168 // commit, but it may be wrong in corner cases (e.g., if we are at the max
4169 // entry limit, the earliest entry will be dropped). This is ok because this
4170 // algorithm only uses |entry_index| to walk the entry list as it stands right
4171 // now, and it isn't saved for anything post-commit.
4172 int entry_index = GetPendingEntryIndex();
4173 bool will_create_new_entry = false;
4174 if (NavigationTypeUtils::IsReload(request->common_params().navigation_type) ||
4175 request->common_params().should_replace_current_entry) {
4176 entry_index = GetLastCommittedEntryIndex();
4177 } else if (entry_index == -1) {
4178 will_create_new_entry = true;
4179 entry_index = GetLastCommittedEntryIndex() + 1;
4180 }
4181
4182 int64_t pending_item_sequence_number = 0;
4183 if (auto* pending_entry = GetPendingEntry()) {
4184 if (auto* frame_entry = pending_entry->GetFrameEntry(node))
4185 pending_item_sequence_number = frame_entry->item_sequence_number();
4186 }
4187
4188 request->set_app_history_back_entries(PopulateSingleAppHistoryEntryVector(
4189 Direction::kBack, entry_index, pending_origin, node, site_instance.get(),
4190 pending_item_sequence_number));
4191
4192 // Don't populate forward entries if they will be truncated by a new entry.
4193 if (!will_create_new_entry) {
4194 request->set_app_history_forward_entries(
4195 PopulateSingleAppHistoryEntryVector(
4196 Direction::kForward, entry_index, pending_origin, node,
4197 site_instance.get(), pending_item_sequence_number));
4198 }
4199}
4200
Nate Chapinfbfe5af2021-06-10 17:22:084201NavigationControllerImpl::HistoryNavigationAction
4202NavigationControllerImpl::ShouldNavigateToEntryForAppHistoryKey(
4203 FrameNavigationEntry* current_entry,
4204 FrameNavigationEntry* target_entry,
4205 const std::string& app_history_key) {
4206 if (!target_entry || !target_entry->committed_origin())
4207 return HistoryNavigationAction::kStopLooking;
4208 if (current_entry->site_instance() != target_entry->site_instance())
4209 return HistoryNavigationAction::kStopLooking;
4210 if (!current_entry->committed_origin()->IsSameOriginWith(
4211 *target_entry->committed_origin())) {
4212 return HistoryNavigationAction::kStopLooking;
4213 }
4214
4215 // NOTE: We don't actually care between kSameDocument and
4216 // kDifferentDocument, so always use kDifferentDocument by convention.
4217 if (target_entry->app_history_key() == app_history_key)
4218 return HistoryNavigationAction::kDifferentDocument;
4219 return HistoryNavigationAction::kKeepLooking;
4220}
4221
4222void NavigationControllerImpl::NavigateToAppHistoryKey(FrameTreeNode* node,
4223 const std::string& key) {
4224 FrameNavigationEntry* current_entry =
4225 GetLastCommittedEntry()->GetFrameEntry(node);
4226 if (!current_entry)
4227 return;
4228
4229 // We want to find the nearest matching entry that is contiguously
4230 // same-instance and same-origin. Check back first, then forward.
4231 // TODO(japhet): Link spec here once it exists.
4232 for (int i = GetCurrentEntryIndex() - 1; i >= 0; i--) {
4233 auto result = ShouldNavigateToEntryForAppHistoryKey(
4234 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4235 if (result == HistoryNavigationAction::kStopLooking)
4236 break;
4237 if (result != HistoryNavigationAction::kKeepLooking) {
4238 GoToIndex(i);
4239 return;
4240 }
4241 }
4242 for (int i = GetCurrentEntryIndex() + 1; i < GetEntryCount(); i++) {
4243 auto result = ShouldNavigateToEntryForAppHistoryKey(
4244 current_entry, GetEntryAtIndex(i)->GetFrameEntry(node), key);
4245 if (result == HistoryNavigationAction::kStopLooking)
4246 break;
4247 if (result != HistoryNavigationAction::kKeepLooking) {
4248 GoToIndex(i);
4249 return;
4250 }
4251 }
4252}
4253
Hayato Ito7a80db42021-07-05 06:18:544254bool NavigationControllerImpl::ShouldMaintainTrivialSessionHistory() const {
4255 // TODO(https://crbug.com/1197384): We may have to add portals and fenced
4256 // frames in addition to prerender. This should be kept in sync with
4257 // LocalFrame version, LocalFrame::ShouldMaintainTrivialSessionHistory.
4258 return frame_tree_.is_prerendering();
4259}
4260
[email protected]8ff00d72012-10-23 19:12:214261} // namespace content