blob: 4dee64a23d43bbf34f3e0ed84ee7dc76052cdb8e [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
[email protected]d4a8ca482013-10-30 21:06:4036#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:2937
dcheng36b6aec92015-12-26 06:16:3638#include <utility>
39
[email protected]c5b88d82012-10-06 17:03:3340#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2841#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2942#include "base/logging.h"
dcheng9bfa5162016-04-09 01:00:5743#include "base/memory/ptr_util.h"
asvitkine30330812016-08-30 04:01:0844#include "base/metrics/histogram_macros.h"
[email protected]348fbaac2013-06-11 06:31:5145#include "base/strings/string_number_conversions.h" // Temporary
46#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0047#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3748#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4249#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5950#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2851#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1852#include "content/browser/bad_message.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3953#include "content/browser/blob_storage/chrome_blob_storage_context.h"
[email protected]825b1662012-03-12 19:07:3154#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4155#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0456#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4057#include "content/browser/frame_host/debug_urls.h"
58#include "content/browser/frame_host/interstitial_page_impl.h"
59#include "content/browser/frame_host/navigation_entry_impl.h"
csharrison9a9142bc42016-03-01 17:24:0460#include "content/browser/frame_host/navigation_handle_impl.h"
creis4e2ecb72015-06-20 00:46:3061#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3262#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3363#include "content/browser/site_instance_impl.h"
Camille Lamy5193caa2018-10-12 11:59:4264#include "content/common/content_constants_internal.h"
[email protected]37567b432014-02-12 01:12:2265#include "content/common/frame_messages.h"
[email protected]0aed2f52011-03-23 18:06:3666#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1167#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1968#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4669#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0070#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3871#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1672#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5873#include "content/public/browser/render_widget_host.h"
74#include "content/public/browser/render_widget_host_view.h"
Mikel Astizba9cf2fd2017-12-17 10:38:1075#include "content/public/browser/replaced_navigation_entry_data.h"
[email protected]4c3a23582012-08-18 08:54:3476#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1977#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3878#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1079#include "content/public/common/content_features.h"
clamy7fced7b2017-11-16 19:52:4380#include "content/public/common/url_utils.h"
servolkf3955532015-05-16 00:01:5981#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3282#include "net/base/escape.h"
Arthur Sonzogni620cec62018-12-13 13:08:5783#include "net/http/http_status_code.h"
[email protected]9677a3c2012-12-22 04:18:5884#include "skia/ext/platform_canvas.h"
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:3985#include "third_party/blink/public/common/blob/blob_utils.h"
Blink Reformata30d4232018-04-07 15:31:0686#include "third_party/blink/public/common/mime_util/mime_util.h"
[email protected]cca6f392014-05-28 21:32:2687#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2988
[email protected]8ff00d72012-10-23 19:12:2189namespace content {
[email protected]e9ba4472008-09-14 15:42:4390namespace {
91
92// Invoked when entries have been pruned, or removed. For example, if the
93// current entries are [google, digg, yahoo], with the current entry google,
94// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4795void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4996 bool from_front,
97 int count) {
[email protected]8ff00d72012-10-23 19:12:2198 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4999 details.from_front = from_front;
100 details.count = count;
Sam McNally5c087a32017-08-25 01:46:14101 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:43102}
103
104// Ensure the given NavigationEntry has a valid state, so that WebKit does not
105// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39106//
[email protected]e9ba4472008-09-14 15:42:43107// An empty state is treated as a new navigation by WebKit, which would mean
108// losing the navigation entries and generating a new navigation entry after
109// this one. We don't want that. To avoid this we create a valid state which
110// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04111void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
112 if (!entry->GetPageState().IsValid())
113 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43114}
115
116// Configure all the NavigationEntries in entries for restore. This resets
117// the transition type to reload and makes sure the content state isn't empty.
118void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57119 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48120 RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43121 for (size_t i = 0; i < entries->size(); ++i) {
122 // Use a transition type of reload so that we don't incorrectly increase
123 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35124 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
toyoshim0df1d3a2016-09-09 09:52:48125 (*entries)[i]->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43126 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03127 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43128 }
129}
130
[email protected]bf70edce2012-06-20 22:32:22131// Determines whether or not we should be carrying over a user agent override
132// between two NavigationEntries.
Xida Chenf860d0c2019-01-07 18:43:52133bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22134 return last_entry && last_entry->GetIsOverridingUserAgent();
135}
136
Camille Lamy5193caa2018-10-12 11:59:42137// Determines whether to override user agent for a navigation.
138bool ShouldOverrideUserAgent(
139 NavigationController::UserAgentOverrideOption override_user_agent,
Xida Chenf860d0c2019-01-07 18:43:52140 const NavigationEntry* last_committed_entry) {
Camille Lamy5193caa2018-10-12 11:59:42141 switch (override_user_agent) {
142 case NavigationController::UA_OVERRIDE_INHERIT:
143 return ShouldKeepOverride(last_committed_entry);
144 case NavigationController::UA_OVERRIDE_TRUE:
145 return true;
146 case NavigationController::UA_OVERRIDE_FALSE:
147 return false;
148 default:
149 break;
150 }
151 NOTREACHED();
152 return false;
153}
154
clamy0a656e42018-02-06 18:18:28155// Returns true this navigation should be treated as a reload. For e.g.
156// navigating to the last committed url via the address bar or clicking on a
157// link which results in a navigation to the last committed or pending
158// navigation, etc.
159// |url|, |virtual_url|, |base_url_for_data_url|, |transition_type| correspond
160// to the new navigation (i.e. the pending NavigationEntry).
161// |last_committed_entry| is the last navigation that committed.
Xida Chenf860d0c2019-01-07 18:43:52162bool ShouldTreatNavigationAsReload(
163 const GURL& url,
164 const GURL& virtual_url,
165 const GURL& base_url_for_data_url,
166 ui::PageTransition transition_type,
167 bool is_main_frame,
168 bool is_post,
169 bool is_reload,
170 bool is_navigation_to_existing_entry,
171 bool has_interstitial,
172 const NavigationEntryImpl* last_committed_entry) {
clamy0a656e42018-02-06 18:18:28173 // Don't convert when an interstitial is showing.
174 if (has_interstitial)
175 return false;
176
177 // Only convert main frame navigations to a new entry.
178 if (!is_main_frame || is_reload || is_navigation_to_existing_entry)
179 return false;
180
181 // Only convert to reload if at least one navigation committed.
182 if (!last_committed_entry)
ananta3bdd8ae2016-12-22 17:11:55183 return false;
184
arthursonzogni7a8243682017-12-14 16:41:42185 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28186 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42187 return false;
188
ananta3bdd8ae2016-12-22 17:11:55189 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
190 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
191 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28192 bool transition_type_can_be_converted = false;
193 if (ui::PageTransitionCoreTypeIs(transition_type,
194 ui::PAGE_TRANSITION_RELOAD) &&
195 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
196 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55197 }
clamy0a656e42018-02-06 18:18:28198 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55199 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28200 transition_type_can_be_converted = true;
201 }
202 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
203 transition_type_can_be_converted = true;
204 if (!transition_type_can_be_converted)
205 return false;
206
207 // This check is required for cases like view-source:, etc. Here the URL of
208 // the navigation entry would contain the url of the page, while the virtual
209 // URL contains the full URL including the view-source prefix.
210 if (virtual_url != last_committed_entry->GetVirtualURL())
211 return false;
212
213 // Check that the URL match.
214 if (url != last_committed_entry->GetURL())
215 return false;
216
217 // This check is required for Android WebView loadDataWithBaseURL. Apps
218 // can pass in anything in the base URL and we need to ensure that these
219 // match before classifying it as a reload.
220 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
221 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
222 return false;
ananta3bdd8ae2016-12-22 17:11:55223 }
224
clamy0a656e42018-02-06 18:18:28225 // Skip entries with SSL errors.
226 if (last_committed_entry->ssl_error())
227 return false;
228
229 // Don't convert to a reload when the last navigation was a POST or the new
230 // navigation is a POST.
231 if (last_committed_entry->GetHasPostData() || is_post)
232 return false;
233
234 return true;
ananta3bdd8ae2016-12-22 17:11:55235}
236
Camille Lamy5193caa2018-10-12 11:59:42237bool IsValidURLForNavigation(bool is_main_frame,
238 const GURL& virtual_url,
239 const GURL& dest_url) {
240 // Don't attempt to navigate if the virtual URL is non-empty and invalid.
241 if (is_main_frame && !virtual_url.is_valid() && !virtual_url.is_empty()) {
242 LOG(WARNING) << "Refusing to load for invalid virtual URL: "
243 << virtual_url.possibly_invalid_spec();
244 return false;
245 }
246
247 // Don't attempt to navigate to non-empty invalid URLs.
248 if (!dest_url.is_valid() && !dest_url.is_empty()) {
249 LOG(WARNING) << "Refusing to load invalid URL: "
250 << dest_url.possibly_invalid_spec();
251 return false;
252 }
253
254 // The renderer will reject IPC messages with URLs longer than
255 // this limit, so don't attempt to navigate with a longer URL.
256 if (dest_url.spec().size() > url::kMaxURLChars) {
257 LOG(WARNING) << "Refusing to load URL as it exceeds " << url::kMaxURLChars
258 << " characters.";
259 return false;
260 }
261
262 return true;
263}
264
Mikel Astizba9cf2fd2017-12-17 10:38:10265// See replaced_navigation_entry_data.h for details: this information is meant
266// to ensure |*output_entry| keeps track of its original URL (landing page in
267// case of server redirects) as it gets replaced (e.g. history.replaceState()),
268// without overwriting it later, for main frames.
269void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Xida Chenf860d0c2019-01-07 18:43:52270 const NavigationEntryImpl& replaced_entry,
Mikel Astizba9cf2fd2017-12-17 10:38:10271 NavigationEntryImpl* output_entry) {
272 if (output_entry->GetReplacedEntryData().has_value())
273 return;
274
275 ReplacedNavigationEntryData data;
Xida Chenf860d0c2019-01-07 18:43:52276 data.first_committed_url = replaced_entry.GetURL();
277 data.first_timestamp = replaced_entry.GetTimestamp();
278 data.first_transition_type = replaced_entry.GetTransitionType();
Charlie Reisb55438f2019-01-08 01:54:29279 output_entry->set_replaced_entry_data(data);
Mikel Astizba9cf2fd2017-12-17 10:38:10280}
281
clamyea99ea12018-05-28 13:54:23282FrameMsg_Navigate_Type::Value GetNavigationType(
283 const GURL& old_url,
284 const GURL& new_url,
285 ReloadType reload_type,
Xida Chenf860d0c2019-01-07 18:43:52286 const NavigationEntryImpl& entry,
clamyea99ea12018-05-28 13:54:23287 const FrameNavigationEntry& frame_entry,
288 bool is_same_document_history_load) {
289 // Reload navigations
290 switch (reload_type) {
291 case ReloadType::NORMAL:
292 return FrameMsg_Navigate_Type::RELOAD;
293 case ReloadType::BYPASSING_CACHE:
clamyea99ea12018-05-28 13:54:23294 return FrameMsg_Navigate_Type::RELOAD_BYPASSING_CACHE;
295 case ReloadType::ORIGINAL_REQUEST_URL:
296 return FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL;
297 case ReloadType::NONE:
298 break; // Fall through to rest of function.
299 }
300
Xida Chenf860d0c2019-01-07 18:43:52301 if (entry.restore_type() == RestoreType::LAST_SESSION_EXITED_CLEANLY) {
302 if (entry.GetHasPostData())
clamyea99ea12018-05-28 13:54:23303 return FrameMsg_Navigate_Type::RESTORE_WITH_POST;
304 else
305 return FrameMsg_Navigate_Type::RESTORE;
306 }
307
308 // History navigations.
309 if (frame_entry.page_state().IsValid()) {
310 if (is_same_document_history_load)
311 return FrameMsg_Navigate_Type::HISTORY_SAME_DOCUMENT;
312 else
313 return FrameMsg_Navigate_Type::HISTORY_DIFFERENT_DOCUMENT;
314 }
315 DCHECK(!is_same_document_history_load);
316
317 // A same-document fragment-navigation happens when the only part of the url
318 // that is modified is after the '#' character.
319 //
320 // When modifying this condition, please take a look at:
321 // FrameLoader::shouldPerformFragmentNavigation.
322 //
323 // Note: this check is only valid for navigations that are not history
324 // navigations. For instance, if the history is: 'A#bar' -> 'B' -> 'A#foo', a
325 // history navigation from 'A#foo' to 'A#bar' is not a same-document
326 // navigation, but a different-document one. This is why history navigation
327 // are classified before this check.
328 if (new_url.has_ref() && old_url.EqualsIgnoringRef(new_url) &&
329 frame_entry.method() == "GET") {
330 return FrameMsg_Navigate_Type::SAME_DOCUMENT;
331 } else {
332 return FrameMsg_Navigate_Type::DIFFERENT_DOCUMENT;
333 }
334}
335
Camille Lamy5193caa2018-10-12 11:59:42336// Adjusts the original input URL if needed, to get the URL to actually load and
337// the virtual URL, which may differ.
338void RewriteUrlForNavigation(const GURL& original_url,
339 BrowserContext* browser_context,
340 GURL* url_to_load,
341 GURL* virtual_url,
342 bool* reverse_on_redirect) {
343 // Fix up the given URL before letting it be rewritten, so that any minor
344 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
345 *virtual_url = original_url;
346 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(virtual_url,
347 browser_context);
348
349 // Allow the browser URL handler to rewrite the URL. This will, for example,
350 // remove "view-source:" from the beginning of the URL to get the URL that
351 // will actually be loaded. This real URL won't be shown to the user, just
352 // used internally.
353 *url_to_load = *virtual_url;
354 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
355 url_to_load, browser_context, reverse_on_redirect);
356}
357
358#if DCHECK_IS_ON()
359// Helper sanity check function used in debug mode.
360void ValidateRequestMatchesEntry(NavigationRequest* request,
361 NavigationEntryImpl* entry) {
362 if (request->frame_tree_node()->IsMainFrame()) {
363 DCHECK_EQ(request->browser_initiated(), !entry->is_renderer_initiated());
364 DCHECK(ui::PageTransitionTypeIncludingQualifiersIs(
365 request->common_params().transition, entry->GetTransitionType()));
366 }
367 DCHECK_EQ(request->common_params().should_replace_current_entry,
368 entry->should_replace_entry());
Nasko Oskovc36327d2019-01-03 23:23:04369 DCHECK_EQ(request->commit_params().should_clear_history_list,
Camille Lamy5193caa2018-10-12 11:59:42370 entry->should_clear_history_list());
371 DCHECK_EQ(request->common_params().has_user_gesture,
372 entry->has_user_gesture());
373 DCHECK_EQ(request->common_params().base_url_for_data_url,
374 entry->GetBaseURLForDataURL());
Nasko Oskovc36327d2019-01-03 23:23:04375 DCHECK_EQ(request->commit_params().can_load_local_resources,
Camille Lamy5193caa2018-10-12 11:59:42376 entry->GetCanLoadLocalResources());
377 DCHECK_EQ(request->common_params().started_from_context_menu,
378 entry->has_started_from_context_menu());
379
380 FrameNavigationEntry* frame_entry =
381 entry->GetFrameEntry(request->frame_tree_node());
382 if (!frame_entry) {
383 NOTREACHED();
384 return;
385 }
386
387 DCHECK_EQ(request->common_params().url, frame_entry->url());
388 DCHECK_EQ(request->common_params().method, frame_entry->method());
389
Nasko Oskovc36327d2019-01-03 23:23:04390 size_t redirect_size = request->commit_params().redirects.size();
Camille Lamy5193caa2018-10-12 11:59:42391 if (redirect_size == frame_entry->redirect_chain().size()) {
392 for (size_t i = 0; i < redirect_size; ++i) {
Nasko Oskovc36327d2019-01-03 23:23:04393 DCHECK_EQ(request->commit_params().redirects[i],
Camille Lamy5193caa2018-10-12 11:59:42394 frame_entry->redirect_chain()[i]);
395 }
396 } else {
397 NOTREACHED();
398 }
399}
400#endif // DCHECK_IS_ON()
401
[email protected]e9ba4472008-09-14 15:42:43402} // namespace
403
[email protected]d202a7c2012-01-04 07:53:47404// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29405
[email protected]23a918b2014-07-15 09:51:36406const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23407
[email protected]765b35502008-08-21 00:51:20408// static
[email protected]d202a7c2012-01-04 07:53:47409size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23410 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20411
[email protected]e6fec472013-05-14 05:29:02412// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20413// when testing.
414static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29415
[email protected]71fde352011-12-29 03:29:56416// static
dcheng9bfa5162016-04-09 01:00:57417std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
418 const GURL& url,
419 const Referrer& referrer,
420 ui::PageTransition transition,
421 bool is_renderer_initiated,
422 const std::string& extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:09423 BrowserContext* browser_context,
424 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
Camille Lamy5193caa2018-10-12 11:59:42425 GURL url_to_load;
426 GURL virtual_url;
[email protected]71fde352011-12-29 03:29:56427 bool reverse_on_redirect = false;
Camille Lamy5193caa2018-10-12 11:59:42428 RewriteUrlForNavigation(url, browser_context, &url_to_load, &virtual_url,
429 &reverse_on_redirect);
[email protected]71fde352011-12-29 03:29:56430
431 NavigationEntryImpl* entry = new NavigationEntryImpl(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28432 nullptr, // The site instance for tabs is sent on navigation
433 // (WebContents::GetSiteInstance).
Camille Lamy5193caa2018-10-12 11:59:42434 url_to_load, referrer, base::string16(), transition,
435 is_renderer_initiated, blob_url_loader_factory);
436 entry->SetVirtualURL(virtual_url);
437 entry->set_user_typed_url(virtual_url);
[email protected]71fde352011-12-29 03:29:56438 entry->set_update_virtual_url_with_url(reverse_on_redirect);
439 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57440 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56441}
442
[email protected]cdcb1dee2012-01-04 00:46:20443// static
444void NavigationController::DisablePromptOnRepost() {
445 g_check_for_repost = false;
446}
447
[email protected]c5b88d82012-10-06 17:03:33448base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
449 base::Time t) {
450 // If |t| is between the water marks, we're in a run of duplicates
451 // or just getting out of it, so increase the high-water mark to get
452 // a time that probably hasn't been used before and return it.
453 if (low_water_mark_ <= t && t <= high_water_mark_) {
454 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
455 return high_water_mark_;
456 }
457
458 // Otherwise, we're clear of the last duplicate run, so reset the
459 // water marks.
460 low_water_mark_ = high_water_mark_ = t;
461 return t;
462}
463
[email protected]d202a7c2012-01-04 07:53:47464NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57465 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19466 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37467 : browser_context_(browser_context),
ananta3bdd8ae2016-12-22 17:11:55468 pending_entry_(nullptr),
avi45a72532015-04-07 21:01:45469 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20470 last_committed_entry_index_(-1),
471 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47472 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57473 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22474 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57475 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09476 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28477 in_navigate_to_pending_entry_(false),
toyoshim0df1d3a2016-09-09 09:52:48478 pending_reload_(ReloadType::NONE),
[email protected]8cea7892013-02-06 06:49:31479 get_timestamp_callback_(base::Bind(&base::Time::Now)),
toyoshima63c2a62016-09-29 09:03:26480 last_committed_reload_type_(ReloadType::NONE) {
[email protected]3d7474ff2011-07-27 17:47:37481 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29482}
483
[email protected]d202a7c2012-01-04 07:53:47484NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47485 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29486}
487
Xida Chenf860d0c2019-01-07 18:43:52488WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57489 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32490}
491
Xida Chenf860d0c2019-01-07 18:43:52492BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55493 return browser_context_;
494}
495
[email protected]d202a7c2012-01-04 07:53:47496void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30497 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36498 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57499 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57500 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55501 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57502 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14503 selected_navigation < static_cast<int>(entries->size()));
arthursonzogni5c4c202d2017-04-25 23:41:27504 DCHECK_EQ(-1, pending_entry_index_);
[email protected]ce3fa3c2009-04-20 19:55:57505
[email protected]ce3fa3c2009-04-20 19:55:57506 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:44507 needs_reload_type_ = NeedsReloadType::kRestoreSession;
avif16f85a72015-11-13 18:25:03508 entries_.reserve(entries->size());
509 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36510 entries_.push_back(
511 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03512
513 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
514 // cleared out safely.
515 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57516
517 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36518 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57519}
520
toyoshim6142d96f2016-12-19 09:07:25521void NavigationControllerImpl::Reload(ReloadType reload_type,
522 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28523 DCHECK_NE(ReloadType::NONE, reload_type);
524
[email protected]669e0ba2012-08-30 23:57:36525 if (transient_entry_index_ != -1) {
526 // If an interstitial is showing, treat a reload as a navigation to the
527 // transient entry's URL.
creis3da03872015-02-20 21:12:32528 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27529 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36530 return;
[email protected]6286a3792013-10-09 04:03:27531 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21532 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35533 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27534 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47535 return;
[email protected]669e0ba2012-08-30 23:57:36536 }
[email protected]cbab76d2008-10-13 22:42:47537
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28538 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32539 int current_index = -1;
540
541 // If we are reloading the initial navigation, just use the current
542 // pending entry. Otherwise look up the current entry.
543 if (IsInitialNavigation() && pending_entry_) {
544 entry = pending_entry_;
545 // The pending entry might be in entries_ (e.g., after a Clone), so we
546 // should also update the current_index.
547 current_index = pending_entry_index_;
548 } else {
549 DiscardNonCommittedEntriesInternal();
550 current_index = GetCurrentEntryIndex();
551 if (current_index != -1) {
creis3da03872015-02-20 21:12:32552 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32553 }
[email protected]979a4bc2013-04-24 01:27:15554 }
[email protected]241db352013-04-22 18:04:05555
[email protected]59167c22013-06-03 18:07:32556 // If we are no where, then we can't reload. TODO(darin): We should add a
557 // CanReload method.
558 if (!entry)
559 return;
560
toyoshima63c2a62016-09-29 09:03:26561 // Check if previous navigation was a reload to track consecutive reload
562 // operations.
563 if (last_committed_reload_type_ != ReloadType::NONE) {
564 DCHECK(!last_committed_reload_time_.is_null());
565 base::Time now =
566 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
567 DCHECK_GT(now, last_committed_reload_time_);
568 if (!last_committed_reload_time_.is_null() &&
569 now > last_committed_reload_time_) {
570 base::TimeDelta delta = now - last_committed_reload_time_;
571 UMA_HISTOGRAM_MEDIUM_TIMES("Navigation.Reload.ReloadToReloadDuration",
572 delta);
toyoshimb0d4eed32016-12-09 06:03:04573 if (last_committed_reload_type_ == ReloadType::NORMAL) {
toyoshima63c2a62016-09-29 09:03:26574 UMA_HISTOGRAM_MEDIUM_TIMES(
575 "Navigation.Reload.ReloadMainResourceToReloadDuration", delta);
576 }
577 }
578 }
579
580 // Set ReloadType for |entry| in order to check it at commit time.
581 entry->set_reload_type(reload_type);
582
[email protected]cdcb1dee2012-01-04 00:46:20583 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32584 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30585 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07586 // they really want to do this. If they do, the dialog will call us back
587 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57588 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02589
[email protected]106a0812010-03-18 00:15:12590 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57591 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29592 } else {
[email protected]59167c22013-06-03 18:07:32593 if (!IsInitialNavigation())
594 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26595
Nasko Oskovaee2f862018-06-15 00:05:52596 pending_entry_ = entry;
597 pending_entry_index_ = current_index;
598 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22599
clamy3cb9bea92018-07-10 12:42:02600 NavigateToExistingPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29601 }
602}
603
[email protected]d202a7c2012-01-04 07:53:47604void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48605 DCHECK(pending_reload_ != ReloadType::NONE);
606 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12607}
608
[email protected]d202a7c2012-01-04 07:53:47609void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48610 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12611 NOTREACHED();
612 } else {
toyoshim6142d96f2016-12-19 09:07:25613 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48614 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12615 }
616}
617
Xida Chenf860d0c2019-01-07 18:43:52618bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09619 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11620}
621
Xida Chenf860d0c2019-01-07 18:43:52622bool NavigationControllerImpl::IsInitialBlankNavigation() const {
creis10a4ab72015-10-13 17:22:40623 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48624 // we'll need to check for entry count 1 and restore_type NONE (to exclude
625 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40626 return IsInitialNavigation() && GetEntryCount() == 0;
627}
628
avi254eff02015-07-01 08:27:58629NavigationEntryImpl*
630NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
631 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03632 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58633}
634
avi25764702015-06-23 15:43:37635void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57636 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47637 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37638 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27639 DCHECK_EQ(-1, pending_entry_index_);
[email protected]8ff00d72012-10-23 19:12:21640 NotificationService::current()->Notify(
641 NOTIFICATION_NAV_ENTRY_PENDING,
642 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37643 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20644}
645
Xida Chenf860d0c2019-01-07 18:43:52646NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47647 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03648 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47649 if (pending_entry_)
650 return pending_entry_;
651 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20652}
653
Xida Chenf860d0c2019-01-07 18:43:52654NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19655 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03656 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32657 // The pending entry is safe to return for new (non-history), browser-
658 // initiated navigations. Most renderer-initiated navigations should not
659 // show the pending entry, to prevent URL spoof attacks.
660 //
661 // We make an exception for renderer-initiated navigations in new tabs, as
662 // long as no other page has tried to access the initial empty document in
663 // the new tab. If another page modifies this blank page, a URL spoof is
664 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32665 bool safe_to_show_pending =
666 pending_entry_ &&
667 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09668 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32669 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46670 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32671
672 // Also allow showing the pending entry for history navigations in a new tab,
673 // such as Ctrl+Back. In this case, no existing page is visible and no one
674 // can script the new tab before it commits.
675 if (!safe_to_show_pending &&
676 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09677 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32678 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34679 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32680 safe_to_show_pending = true;
681
682 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19683 return pending_entry_;
684 return GetLastCommittedEntry();
685}
686
Xida Chenf860d0c2019-01-07 18:43:52687int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47688 if (transient_entry_index_ != -1)
689 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20690 if (pending_entry_index_ != -1)
691 return pending_entry_index_;
692 return last_committed_entry_index_;
693}
694
Xida Chenf860d0c2019-01-07 18:43:52695NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20696 if (last_committed_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28697 return nullptr;
avif16f85a72015-11-13 18:25:03698 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20699}
700
Xida Chenf860d0c2019-01-07 18:43:52701bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57702 const std::string& mime_type = delegate_->GetContentsMimeType();
Kinuko Yasuda74702f92017-07-31 03:27:53703 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
704 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27705 NavigationEntry* visible_entry = GetVisibleEntry();
706 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57707 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16708}
709
Xida Chenf860d0c2019-01-07 18:43:52710int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:27711 // The last committed entry index must always be less than the number of
712 // entries. If there are no entries, it must be -1. However, there may be a
713 // transient entry while the last committed entry index is still -1.
714 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
715 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55716 return last_committed_entry_index_;
717}
718
Xida Chenf860d0c2019-01-07 18:43:52719int NavigationControllerImpl::GetEntryCount() const {
arthursonzogni5c4c202d2017-04-25 23:41:27720 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55721 return static_cast<int>(entries_.size());
722}
723
Xida Chenf860d0c2019-01-07 18:43:52724NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
725 int index) const {
avi25764702015-06-23 15:43:37726 if (index < 0 || index >= GetEntryCount())
727 return nullptr;
728
avif16f85a72015-11-13 18:25:03729 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25730}
731
Xida Chenf860d0c2019-01-07 18:43:52732NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
733 int offset) const {
avi057ce1492015-06-29 15:59:47734 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20735}
736
Xida Chenf860d0c2019-01-07 18:43:52737int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46738 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03739}
740
Xida Chenf860d0c2019-01-07 18:43:52741bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22742 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20743}
744
Xida Chenf860d0c2019-01-07 18:43:52745bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22746 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20747}
748
Xida Chenf860d0c2019-01-07 18:43:52749bool NavigationControllerImpl::CanGoToOffset(int offset) const {
[email protected]9ba14052012-06-22 23:50:03750 int index = GetIndexForOffset(offset);
751 return index >= 0 && index < GetEntryCount();
752}
753
[email protected]d202a7c2012-01-04 07:53:47754void NavigationControllerImpl::GoBack() {
shivanisha55201872018-12-13 04:29:06755 int target_index = GetIndexForOffset(-1);
756
757 // Log metrics for the number of entries that are eligible for skipping on
Shivani Sharma2d5b4b6b2019-01-08 16:07:16758 // back button and move the target index past the skippable entries, if
759 // history intervention is enabled.
760 // TODO(crbug.com/907167): Implement the case when all entries are
761 // skippable.
shivanisha55201872018-12-13 04:29:06762 int count_entries_skipped = 0;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16763 bool history_intervention_enabled = base::FeatureList::IsEnabled(
764 features::kHistoryManipulationIntervention);
shivanisha55201872018-12-13 04:29:06765 for (int index = target_index; index >= 0; index--) {
Shivani Sharma2d5b4b6b2019-01-08 16:07:16766 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
shivanisha55201872018-12-13 04:29:06767 count_entries_skipped++;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16768 } else {
769 if (history_intervention_enabled)
770 target_index = index;
shivanisha55201872018-12-13 04:29:06771 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16772 }
shivanisha55201872018-12-13 04:29:06773 }
774 UMA_HISTOGRAM_ENUMERATION("Navigation.BackForward.BackTargetSkipped",
775 count_entries_skipped, kMaxSessionHistoryEntries);
776
shivanisha55201872018-12-13 04:29:06777 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20778}
779
[email protected]d202a7c2012-01-04 07:53:47780void NavigationControllerImpl::GoForward() {
shivanisha55201872018-12-13 04:29:06781 int target_index = GetIndexForOffset(1);
782
783 // Log metrics for the number of entries that are eligible for skipping on
Shivani Sharma2d5b4b6b2019-01-08 16:07:16784 // forward button and move the target index past the skippable entries, if
785 // history intervention is enabled.
786 // Note that at least one entry (the last one) will be non-skippable since
787 // entries are marked skippable only when they add another entry because of
788 // redirect or pushState.
shivanisha55201872018-12-13 04:29:06789 int count_entries_skipped = 0;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16790 bool history_intervention_enabled = base::FeatureList::IsEnabled(
791 features::kHistoryManipulationIntervention);
shivanisha55201872018-12-13 04:29:06792 for (size_t index = target_index; index < entries_.size(); index++) {
Shivani Sharma2d5b4b6b2019-01-08 16:07:16793 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
shivanisha55201872018-12-13 04:29:06794 count_entries_skipped++;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16795 } else {
796 if (history_intervention_enabled)
797 target_index = index;
shivanisha55201872018-12-13 04:29:06798 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16799 }
shivanisha55201872018-12-13 04:29:06800 }
801 UMA_HISTOGRAM_ENUMERATION("Navigation.BackForward.ForwardTargetSkipped",
802 count_entries_skipped, kMaxSessionHistoryEntries);
803
shivanisha55201872018-12-13 04:29:06804 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20805}
806
[email protected]d202a7c2012-01-04 07:53:47807void NavigationControllerImpl::GoToIndex(int index) {
sunjian30574a62017-03-21 21:39:44808 TRACE_EVENT0("browser,navigation,benchmark",
809 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:20810 if (index < 0 || index >= static_cast<int>(entries_.size())) {
811 NOTREACHED();
812 return;
813 }
814
[email protected]cbab76d2008-10-13 22:42:47815 if (transient_entry_index_ != -1) {
816 if (index == transient_entry_index_) {
817 // Nothing to do when navigating to the transient.
818 return;
819 }
820 if (index > transient_entry_index_) {
821 // Removing the transient is goint to shift all entries by 1.
822 index--;
823 }
824 }
825
826 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20827
arthursonzogni5c4c202d2017-04-25 23:41:27828 DCHECK_EQ(nullptr, pending_entry_);
829 DCHECK_EQ(-1, pending_entry_index_);
830 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:20831 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:27832 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
833 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
clamy3cb9bea92018-07-10 12:42:02834 NavigateToExistingPendingEntry(ReloadType::NONE);
[email protected]765b35502008-08-21 00:51:20835}
836
[email protected]d202a7c2012-01-04 07:53:47837void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12838 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03839 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20840 return;
841
[email protected]9ba14052012-06-22 23:50:03842 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20843}
844
[email protected]41374f12013-07-24 02:49:28845bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
846 if (index == last_committed_entry_index_ ||
847 index == pending_entry_index_)
848 return false;
[email protected]6a13a6c2011-12-20 21:47:12849
[email protected]43032342011-03-21 14:10:31850 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28851 return true;
[email protected]cbab76d2008-10-13 22:42:47852}
853
[email protected]d202a7c2012-01-04 07:53:47854void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23855 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32856 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31857 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51858 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
859 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32860 }
861}
862
[email protected]d202a7c2012-01-04 07:53:47863void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47864 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21865 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35866 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47867 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47868 LoadURLParams params(url);
869 params.referrer = referrer;
870 params.transition_type = transition;
871 params.extra_headers = extra_headers;
872 LoadURLWithParams(params);
873}
874
875void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43876 TRACE_EVENT1("browser,navigation",
877 "NavigationControllerImpl::LoadURLWithParams",
878 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43879 if (HandleDebugURL(params.url, params.transition_type)) {
880 // If Telemetry is running, allow the URL load to proceed as if it's
881 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49882 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43883 cc::switches::kEnableGpuBenchmarking))
884 return;
885 }
[email protected]8bf1048012012-02-08 01:22:18886
[email protected]cf002332012-08-14 19:17:47887 // Checks based on params.load_type.
888 switch (params.load_type) {
889 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:43890 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47891 break;
892 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26893 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47894 NOTREACHED() << "Data load must use data scheme.";
895 return;
896 }
897 break;
898 default:
899 NOTREACHED();
900 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:46901 }
[email protected]e47ae9472011-10-13 19:48:34902
[email protected]e47ae9472011-10-13 19:48:34903 // The user initiated a load, we don't need to reload anymore.
904 needs_reload_ = false;
905
clamy21718cc22018-06-13 13:34:24906 NavigateWithoutEntry(params);
[email protected]132e281a2012-07-31 18:32:44907}
908
creisb4dc9332016-03-14 21:39:19909bool NavigationControllerImpl::PendingEntryMatchesHandle(
910 NavigationHandleImpl* handle) const {
911 return pending_entry_ &&
912 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
913}
914
[email protected]d202a7c2012-01-04 07:53:47915bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32916 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22917 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
peary21b0f797b2016-09-28 17:28:33918 LoadCommittedDetails* details,
Eugene But712f03d2018-05-22 16:03:44919 bool is_same_document_navigation,
shivanisha41f04c52018-12-12 15:52:05920 bool previous_page_was_activated,
Camille Lamy10aafcd32018-12-05 15:48:13921 NavigationRequest* navigation_request) {
922 DCHECK(navigation_request);
[email protected]cd2e15742013-03-08 04:08:31923 is_initial_navigation_ = false;
924
[email protected]0e8db942008-09-24 21:21:48925 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:43926 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:48927 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51928 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55929 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:43930 if (pending_entry_ &&
931 pending_entry_->GetIsOverridingUserAgent() !=
932 GetLastCommittedEntry()->GetIsOverridingUserAgent())
933 overriding_user_agent_changed = true;
[email protected]0e8db942008-09-24 21:21:48934 } else {
935 details->previous_url = GURL();
936 details->previous_entry_index = -1;
937 }
[email protected]ecd9d8702008-08-28 22:10:17938
fdegans9caf66a2015-07-30 21:10:42939 // If there is a pending entry at this point, it should have a SiteInstance,
940 // except for restored entries.
jam48cea9082017-02-15 06:13:29941 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:48942 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
943 pending_entry_->restore_type() != RestoreType::NONE);
944 if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
945 pending_entry_->set_restore_type(RestoreType::NONE);
jam48cea9082017-02-15 06:13:29946 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:48947 }
[email protected]e9ba4472008-09-14 15:42:43948
Nasko Oskovaee2f862018-06-15 00:05:52949 // If this is a navigation to a matching pending_entry_ and the SiteInstance
950 // has changed, this must be treated as a new navigation with replacement.
951 // Set the replacement bit here and ClassifyNavigation will identify this
952 // case and return NEW_PAGE.
953 if (!rfh->GetParent() && pending_entry_ &&
954 pending_entry_->GetUniqueID() == params.nav_entry_id &&
955 pending_entry_->site_instance() &&
956 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
957 DCHECK_NE(-1, pending_entry_index_);
958 // TODO(nasko,creis): Instead of setting this value here, set
959 // should_replace_current_entry on the parameters we send to the
960 // renderer process as part of CommitNavigation. The renderer should
961 // in turn send it back here as part of |params| and it can be just
962 // enforced and renderer process terminated on mismatch.
963 details->did_replace_entry = true;
964 } else {
965 // The renderer tells us whether the navigation replaces the current entry.
966 details->did_replace_entry = params.should_replace_current_entry;
967 }
[email protected]bcd904482012-02-01 01:54:22968
[email protected]e9ba4472008-09-14 15:42:43969 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43970 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20971
eugenebutee08663a2017-04-27 17:43:12972 // is_same_document must be computed before the entry gets committed.
Eugene But712f03d2018-05-22 16:03:44973 details->is_same_document = is_same_document_navigation;
[email protected]b9d4dfdc2013-08-08 00:25:12974
toyoshima63c2a62016-09-29 09:03:26975 // Save reload type and timestamp for a reload navigation to detect
976 // consecutive reloads when the next reload is requested.
Camille Lamy10aafcd32018-12-05 15:48:13977 NavigationHandleImpl* navigation_handle =
978 navigation_request->navigation_handle();
979 DCHECK(navigation_handle);
clamy3bf35e3c2016-11-10 15:59:44980 if (PendingEntryMatchesHandle(navigation_handle)) {
toyoshima63c2a62016-09-29 09:03:26981 if (pending_entry_->reload_type() != ReloadType::NONE) {
982 last_committed_reload_type_ = pending_entry_->reload_type();
983 last_committed_reload_time_ =
984 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
985 } else if (!pending_entry_->is_renderer_initiated() ||
986 params.gesture == NavigationGestureUser) {
987 last_committed_reload_type_ = ReloadType::NONE;
988 last_committed_reload_time_ = base::Time();
989 }
990 }
991
[email protected]0e8db942008-09-24 21:21:48992 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21993 case NAVIGATION_TYPE_NEW_PAGE:
shivanisha41f04c52018-12-12 15:52:05994 RendererDidNavigateToNewPage(
995 rfh, params, details->is_same_document, details->did_replace_entry,
996 previous_page_was_activated, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43997 break;
[email protected]8ff00d72012-10-23 19:12:21998 case NAVIGATION_TYPE_EXISTING_PAGE:
eugenebutee08663a2017-04-27 17:43:12999 RendererDidNavigateToExistingPage(rfh, params, details->is_same_document,
jam48cea9082017-02-15 06:13:291000 was_restored, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:431001 break;
[email protected]8ff00d72012-10-23 19:12:211002 case NAVIGATION_TYPE_SAME_PAGE:
Joe DeBlasio531e3d92018-11-06 06:26:121003 RendererDidNavigateToSamePage(rfh, params, details->is_same_document,
1004 navigation_handle);
[email protected]e9ba4472008-09-14 15:42:431005 break;
[email protected]8ff00d72012-10-23 19:12:211006 case NAVIGATION_TYPE_NEW_SUBFRAME:
eugenebutee08663a2017-04-27 17:43:121007 RendererDidNavigateNewSubframe(rfh, params, details->is_same_document,
creisf49dfc92016-07-26 17:05:181008 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:431009 break;
[email protected]8ff00d72012-10-23 19:12:211010 case NAVIGATION_TYPE_AUTO_SUBFRAME:
creis59d5a47cb2016-08-24 23:57:191011 if (!RendererDidNavigateAutoSubframe(rfh, params)) {
creisce0ef3572017-01-26 17:53:081012 // We don't send a notification about auto-subframe PageState during
1013 // UpdateStateForFrame, since it looks like nothing has changed. Send
1014 // it here at commit time instead.
1015 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:431016 return false;
creis59d5a47cb2016-08-24 23:57:191017 }
[email protected]e9ba4472008-09-14 15:42:431018 break;
[email protected]8ff00d72012-10-23 19:12:211019 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:491020 // If a pending navigation was in progress, this canceled it. We should
1021 // discard it and make sure it is removed from the URL bar. After that,
1022 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:431023 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:491024 if (pending_entry_) {
1025 DiscardNonCommittedEntries();
pdr15f5b5b2017-06-20 00:58:001026 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:491027 }
[email protected]e9ba4472008-09-14 15:42:431028 return false;
1029 default:
1030 NOTREACHED();
[email protected]765b35502008-08-21 00:51:201031 }
1032
[email protected]688aa65c62012-09-28 04:32:221033 // At this point, we know that the navigation has just completed, so
1034 // record the time.
1035 //
1036 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:261037 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:331038 base::Time timestamp =
1039 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
1040 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:221041 << timestamp.ToInternalValue();
1042
[email protected]f233e4232013-02-23 00:55:141043 // We should not have a pending entry anymore. Clear it again in case any
1044 // error cases above forgot to do so.
1045 DiscardNonCommittedEntriesInternal();
1046
[email protected]e9ba4472008-09-14 15:42:431047 // All committed entries should have nonempty content state so WebKit doesn't
1048 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:471049 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:321050 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:221051 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:441052 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:121053
Charles Reisc0507202017-09-21 00:40:021054 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
1055 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
1056 // A mismatch can occur if the renderer lies or due to a unique name collision
1057 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:121058 FrameNavigationEntry* frame_entry =
1059 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:021060 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
1061 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:031062 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:081063 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
1064 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:031065 DCHECK(params.page_state == frame_entry->page_state());
creis4e2ecb72015-06-20 00:46:301066 }
[email protected]132e281a2012-07-31 18:32:441067
[email protected]d6def3d2014-05-19 18:55:321068 // Use histogram to track memory impact of redirect chain because it's now
1069 // not cleared for committed entries.
1070 size_t redirect_chain_size = 0;
1071 for (size_t i = 0; i < params.redirects.size(); ++i) {
1072 redirect_chain_size += params.redirects[i].spec().length();
1073 }
Steven Holte95922222018-09-14 20:06:231074 UMA_HISTOGRAM_COUNTS_1M("Navigation.RedirectChainSize", redirect_chain_size);
[email protected]d6def3d2014-05-19 18:55:321075
[email protected]97d8f0d2013-10-29 16:49:211076 // Once it is committed, we no longer need to track several pieces of state on
1077 // the entry.
naskoc7533512016-05-06 17:01:121078 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131079
shivanisha41f04c52018-12-12 15:52:051080 // It is possible that we are re-using this entry and it was marked to be
1081 // skipped on back/forward UI in its previous navigation. Reset it here so
1082 // that it is set afresh, if applicable, for this navigation.
1083 active_entry->set_should_skip_on_back_forward_ui(false);
1084
[email protected]49bd30e62011-03-22 20:12:591085 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221086 // TODO(creis): This check won't pass for subframes until we create entries
1087 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001088 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421089 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591090
[email protected]b26de072013-02-23 02:33:441091 // Remember the bindings the renderer process has at this point, so that
1092 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:321093 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:441094
[email protected]e9ba4472008-09-14 15:42:431095 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001096 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001097 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311098 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531099
[email protected]93f230e02011-06-01 14:40:001100 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291101
John Abd-El-Malek380d3c5922017-09-08 00:20:311102 if (active_entry->GetURL().SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1103 navigation_handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek969cdd94e2017-07-10 22:18:161104 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus",
1105 !!active_entry->GetSSL().certificate);
1106 }
1107
aelias100c9192017-01-13 00:01:431108 if (overriding_user_agent_changed)
1109 delegate_->UpdateOverridingUserAgent();
1110
creis03b48002015-11-04 00:54:561111 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1112 // one knows the latest NavigationEntry it is showing (whether it has
1113 // committed anything in this navigation or not). This allows things like
1114 // state and title updates from RenderFrames to apply to the latest relevant
1115 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381116 int nav_entry_id = active_entry->GetUniqueID();
1117 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
1118 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:431119 return true;
initial.commit09911bf2008-07-26 23:55:291120}
1121
[email protected]8ff00d72012-10-23 19:12:211122NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321123 RenderFrameHostImpl* rfh,
Xida Chenf860d0c2019-01-07 18:43:521124 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:381125 if (params.did_create_new_entry) {
1126 // A new entry. We may or may not have a pending entry for the page, and
1127 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001128 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381129 return NAVIGATION_TYPE_NEW_PAGE;
1130 }
1131
1132 // When this is a new subframe navigation, we should have a committed page
1133 // in which it's a subframe. This may not be the case when an iframe is
1134 // navigated on a popup navigated to about:blank (the iframe would be
1135 // written into the popup by script on the main page). For these cases,
1136 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:231137 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381138 return NAVIGATION_TYPE_NAV_IGNORE;
1139
1140 // Valid subframe navigation.
1141 return NAVIGATION_TYPE_NEW_SUBFRAME;
1142 }
1143
1144 // We only clear the session history when navigating to a new page.
1145 DCHECK(!params.history_list_was_cleared);
1146
avi39c1edd32015-06-04 20:06:001147 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381148 // All manual subframes would be did_create_new_entry and handled above, so
1149 // we know this is auto.
1150 if (GetLastCommittedEntry()) {
1151 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1152 } else {
1153 // We ignore subframes created in non-committed pages; we'd appreciate if
1154 // people stopped doing that.
1155 return NAVIGATION_TYPE_NAV_IGNORE;
1156 }
1157 }
1158
1159 if (params.nav_entry_id == 0) {
1160 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1161 // create a new page.
1162
1163 // Just like above in the did_create_new_entry case, it's possible to
1164 // scribble onto an uncommitted page. Again, there isn't any navigation
1165 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231166 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231167 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381168 return NAVIGATION_TYPE_NAV_IGNORE;
1169
Charles Reis1378111f2017-11-08 21:44:061170 // This is history.replaceState() or history.reload().
Nasko Oskov332593c2018-08-16 17:21:341171 // TODO(nasko): With error page isolation, reloading an existing session
1172 // history entry can result in change of SiteInstance. Check for such a case
1173 // here and classify it as NEW_PAGE, as such navigations should be treated
1174 // as new with replacement.
avi259dc792015-07-07 04:42:361175 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381176 }
1177
Nasko Oskovaee2f862018-06-15 00:05:521178 if (pending_entry_ && pending_entry_->GetUniqueID() == params.nav_entry_id) {
1179 // If the SiteInstance of the |pending_entry_| does not match the
1180 // SiteInstance that got committed, treat this as a new navigation with
1181 // replacement. This can happen if back/forward/reload encounters a server
1182 // redirect to a different site or an isolated error page gets successfully
1183 // reloaded into a different SiteInstance.
1184 if (pending_entry_->site_instance() &&
1185 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
creis77c9aa32015-09-25 19:59:421186 return NAVIGATION_TYPE_NEW_PAGE;
Nasko Oskovaee2f862018-06-15 00:05:521187 }
creis77c9aa32015-09-25 19:59:421188
Nasko Oskovaee2f862018-06-15 00:05:521189 if (pending_entry_index_ == -1) {
1190 // In this case, we have a pending entry for a load of a new URL but Blink
1191 // didn't do a new navigation (params.did_create_new_entry). First check
1192 // to make sure Blink didn't treat a new cross-process navigation as
1193 // inert, and thus set params.did_create_new_entry to false. In that case,
1194 // we must treat it as NEW since the SiteInstance doesn't match the entry.
1195 if (!GetLastCommittedEntry() ||
1196 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance()) {
1197 return NAVIGATION_TYPE_NEW_PAGE;
1198 }
1199
1200 // Otherwise, this happens when you press enter in the URL bar to reload.
1201 // We will create a pending entry, but Blink will convert it to a reload
1202 // since it's the same page and not create a new entry for it (the user
1203 // doesn't want to have a new back/forward entry when they do this).
1204 // Therefore we want to just ignore the pending entry and go back to where
1205 // we were (the "existing entry").
1206 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
1207 return NAVIGATION_TYPE_SAME_PAGE;
1208 }
avi7c6f35e2015-05-08 17:52:381209 }
1210
creis26d22632017-04-21 20:23:561211 // Everything below here is assumed to be an existing entry, but if there is
1212 // no last committed entry, we must consider it a new navigation instead.
1213 if (!GetLastCommittedEntry())
1214 return NAVIGATION_TYPE_NEW_PAGE;
1215
avi7c6f35e2015-05-08 17:52:381216 if (params.intended_as_new_entry) {
1217 // This was intended to be a navigation to a new entry but the pending entry
1218 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1219 // may not have a pending entry.
1220 return NAVIGATION_TYPE_EXISTING_PAGE;
1221 }
1222
1223 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1224 params.nav_entry_id == failed_pending_entry_id_) {
1225 // If the renderer was going to a new pending entry that got cleared because
1226 // of an error, this is the case of the user trying to retry a failed load
1227 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1228 // have a pending entry.
1229 return NAVIGATION_TYPE_EXISTING_PAGE;
1230 }
1231
1232 // Now we know that the notification is for an existing page. Find that entry.
1233 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1234 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441235 // The renderer has committed a navigation to an entry that no longer
1236 // exists. Because the renderer is showing that page, resurrect that entry.
1237 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381238 }
1239
avi7c6f35e2015-05-08 17:52:381240 // Since we weeded out "new" navigations above, we know this is an existing
1241 // (back/forward) navigation.
1242 return NAVIGATION_TYPE_EXISTING_PAGE;
1243}
1244
[email protected]d202a7c2012-01-04 07:53:471245void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321246 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221247 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361248 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441249 bool replace_entry,
shivanisha41f04c52018-12-12 15:52:051250 bool previous_page_was_activated,
clamy3bf35e3c2016-11-10 15:59:441251 NavigationHandleImpl* handle) {
dcheng9bfa5162016-04-09 01:00:571252 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181253 bool update_virtual_url = false;
1254
1255 // First check if this is an in-page navigation. If so, clone the current
1256 // entry instead of looking at the pending entry, because the pending entry
1257 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361258 if (is_same_document && GetLastCommittedEntry()) {
creisf49dfc92016-07-26 17:05:181259 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481260 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisf49dfc92016-07-26 17:05:181261 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581262 params.url, &params.origin, params.referrer, params.redirects,
1263 params.page_state, params.method, params.post_id,
1264 nullptr /* blob_url_loader_factory */);
Charles Reisf44482022017-10-13 21:15:031265
creisf49dfc92016-07-26 17:05:181266 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1267 frame_entry, true, rfh->frame_tree_node(),
1268 delegate_->GetFrameTree()->root());
jama78746e2017-02-22 17:21:571269 if (new_entry->GetURL().GetOrigin() != params.url.GetOrigin()) {
1270 // TODO(jam): we had one report of this with a URL that was redirecting to
1271 // only tildes. Until we understand that better, don't copy the cert in
1272 // this case.
1273 new_entry->GetSSL() = SSLStatus();
John Abd-El-Malek9cd697e2017-07-12 21:53:141274
John Abd-El-Malek380d3c5922017-09-08 00:20:311275 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1276 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141277 UMA_HISTOGRAM_BOOLEAN(
1278 "Navigation.SecureSchemeHasSSLStatus.NewPageInPageOriginMismatch",
1279 !!new_entry->GetSSL().certificate);
1280 }
jama78746e2017-02-22 17:21:571281 }
creisf49dfc92016-07-26 17:05:181282
1283 // We expect |frame_entry| to be owned by |new_entry|. This should never
1284 // fail, because it's the main frame.
1285 CHECK(frame_entry->HasOneRef());
1286
1287 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malek9cd697e2017-07-12 21:53:141288
John Abd-El-Malek380d3c5922017-09-08 00:20:311289 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1290 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141291 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.NewPageInPage",
1292 !!new_entry->GetSSL().certificate);
1293 }
creisf49dfc92016-07-26 17:05:181294 }
1295
[email protected]6dd86ab2013-02-27 00:30:341296 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041297 // that was just loaded. Verify this by checking if the entry corresponds
clamy3bf35e3c2016-11-10 15:59:441298 // to the given navigation handle. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041299 // 1. The SiteInstance hasn't been assigned to something else.
1300 // 2. The pending entry was intended as a new entry, rather than being a
1301 // history navigation that was interrupted by an unrelated,
1302 // renderer-initiated navigation.
1303 // TODO(csharrison): Investigate whether we can remove some of the coarser
1304 // checks.
creisf49dfc92016-07-26 17:05:181305 if (!new_entry &&
1306 PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341307 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431308 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351309 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431310
[email protected]f1eb87a2011-05-06 17:49:411311 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malekf36e05f2017-11-30 16:17:521312 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141313
John Abd-El-Malek380d3c5922017-09-08 00:20:311314 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1315 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141316 UMA_HISTOGRAM_BOOLEAN(
1317 "Navigation.SecureSchemeHasSSLStatus.NewPagePendingEntryMatches",
1318 !!new_entry->GetSSL().certificate);
1319 }
creisf49dfc92016-07-26 17:05:181320 }
1321
1322 // For non-in-page commits with no matching pending entry, create a new entry.
1323 if (!new_entry) {
dcheng9bfa5162016-04-09 01:00:571324 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241325
1326 // Find out whether the new entry needs to update its virtual URL on URL
1327 // change and set up the entry accordingly. This is needed to correctly
1328 // update the virtual URL when replaceState is called after a pushState.
1329 GURL url = params.url;
1330 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431331 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1332 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241333 new_entry->set_update_virtual_url_with_url(needs_update);
1334
[email protected]f1eb87a2011-05-06 17:49:411335 // When navigating to a new page, give the browser URL handler a chance to
1336 // update the virtual URL based on the new URL. For example, this is needed
1337 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1338 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241339 update_virtual_url = needs_update;
John Abd-El-Malekf36e05f2017-11-30 16:17:521340 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141341
John Abd-El-Malek380d3c5922017-09-08 00:20:311342 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1343 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141344 UMA_HISTOGRAM_BOOLEAN(
1345 "Navigation.SecureSchemeHasSSLStatus.NewPageNoMatchingEntry",
1346 !!new_entry->GetSSL().certificate);
1347 }
[email protected]e9ba4472008-09-14 15:42:431348 }
1349
wjmaclean7431bb22015-02-19 14:53:431350 // Don't use the page type from the pending entry. Some interstitial page
1351 // may have set the type to interstitial. Once we commit, however, the page
1352 // type must always be normal or error.
1353 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1354 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041355 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411356 if (update_virtual_url)
avi25764702015-06-23 15:43:371357 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251358 new_entry->SetReferrer(params.referrer);
[email protected]022af742011-12-28 18:37:251359 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331360 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431361 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231362 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221363 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431364
creis8b5cd4c2015-06-19 00:11:081365 // Update the FrameNavigationEntry for new main frame commits.
1366 FrameNavigationEntry* frame_entry =
1367 new_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisd2a509f2017-09-27 23:47:481368 frame_entry->set_frame_unique_name(rfh->frame_tree_node()->unique_name());
creis8b5cd4c2015-06-19 00:11:081369 frame_entry->set_item_sequence_number(params.item_sequence_number);
1370 frame_entry->set_document_sequence_number(params.document_sequence_number);
Charles Reisf44482022017-10-13 21:15:031371 frame_entry->set_redirect_chain(params.redirects);
1372 frame_entry->SetPageState(params.page_state);
clamy432acb22016-04-15 19:41:431373 frame_entry->set_method(params.method);
1374 frame_entry->set_post_id(params.post_id);
Nasko Oskov18006bc2018-12-06 02:53:581375 frame_entry->set_origin(params.origin);
creis8b5cd4c2015-06-19 00:11:081376
eugenebut604866f2017-05-10 21:35:361377 // history.pushState() is classified as a navigation to a new page, but sets
1378 // is_same_document to true. In this case, we already have the title and
creisf49dfc92016-07-26 17:05:181379 // favicon available, so set them immediately.
eugenebut604866f2017-05-10 21:35:361380 if (is_same_document && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331381 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191382 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1383 }
[email protected]ff64b3e2014-05-31 04:07:331384
[email protected]60d6cca2013-04-30 08:47:131385 DCHECK(!params.history_list_was_cleared || !replace_entry);
1386 // The browser requested to clear the session history when it initiated the
1387 // navigation. Now we know that the renderer has updated its state accordingly
1388 // and it is safe to also clear the browser side history.
1389 if (params.history_list_was_cleared) {
1390 DiscardNonCommittedEntriesInternal();
1391 entries_.clear();
1392 last_committed_entry_index_ = -1;
1393 }
1394
Nasko Oskovaee2f862018-06-15 00:05:521395 // If this is a new navigation with replacement and there is a
1396 // pending_entry_ which matches the navigation reported by the renderer
1397 // process, then it should be the one replaced, so update the
1398 // last_committed_entry_index_ to use it.
1399 if (replace_entry && pending_entry_index_ != -1 &&
1400 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1401 last_committed_entry_index_ = pending_entry_index_;
1402 }
1403
shivanisha41f04c52018-12-12 15:52:051404 // The previous page that started this navigation needs to be skipped in
1405 // subsequent back/forward UI navigations if it never received any user
1406 // gesture. This is to intervene against pages that manipulate the history
1407 // such that the user is not able to go back to the last site they interacted
1408 // with (crbug.com/907167).
1409 if (!replace_entry && !previous_page_was_activated &&
1410 last_committed_entry_index_ != -1 && handle->IsRendererInitiated()) {
1411 GetLastCommittedEntry()->set_should_skip_on_back_forward_ui(true);
shivanisha55201872018-12-13 04:29:061412 UMA_HISTOGRAM_BOOLEAN("Navigation.BackForward.SetShouldSkipOnBackForwardUI",
1413 true);
1414 } else if (last_committed_entry_index_ != -1) {
1415 UMA_HISTOGRAM_BOOLEAN("Navigation.BackForward.SetShouldSkipOnBackForwardUI",
1416 false);
shivanisha41f04c52018-12-12 15:52:051417 }
1418
dcheng36b6aec92015-12-26 06:16:361419 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431420}
1421
[email protected]d202a7c2012-01-04 07:53:471422void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321423 RenderFrameHostImpl* rfh,
jam0576b132016-09-07 05:13:101424 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361425 bool is_same_document,
jam48cea9082017-02-15 06:13:291426 bool was_restored,
clamy3bf35e3c2016-11-10 15:59:441427 NavigationHandleImpl* handle) {
creis26d22632017-04-21 20:23:561428 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1429 << "that a last committed entry exists.";
1430
[email protected]e9ba4472008-09-14 15:42:431431 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001432 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431433
avicbdc4c12015-07-01 16:07:111434 NavigationEntryImpl* entry;
1435 if (params.intended_as_new_entry) {
1436 // This was intended as a new entry but the pending entry was lost in the
1437 // meanwhile and no new page was created. We are stuck at the last committed
1438 // entry.
1439 entry = GetLastCommittedEntry();
eugenebut604866f2017-05-10 21:35:361440 // If this is a same document navigation, then there's no SSLStatus in the
jam1325c822017-03-17 18:20:541441 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361442 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521443 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141444
John Abd-El-Malek380d3c5922017-09-08 00:20:311445 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1446 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141447 bool has_cert = !!entry->GetSSL().certificate;
1448 if (is_same_document) {
1449 UMA_HISTOGRAM_BOOLEAN(
1450 "Navigation.SecureSchemeHasSSLStatus."
1451 "ExistingPageSameDocumentIntendedAsNew",
1452 has_cert);
1453 } else {
1454 UMA_HISTOGRAM_BOOLEAN(
1455 "Navigation.SecureSchemeHasSSLStatus."
1456 "ExistingPageDifferentDocumentIntendedAsNew",
1457 has_cert);
1458 }
1459 }
avicbdc4c12015-07-01 16:07:111460 } else if (params.nav_entry_id) {
1461 // This is a browser-initiated navigation (back/forward/reload).
1462 entry = GetEntryWithUniqueID(params.nav_entry_id);
jamd208b90ce2016-09-01 16:58:161463
eugenebut604866f2017-05-10 21:35:361464 if (is_same_document) {
1465 // There's no SSLStatus in the NavigationHandle for same document
1466 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
1467 // this was a restored same document navigation entry, then it won't have
1468 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
1469 // navigated it.
jam48cea9082017-02-15 06:13:291470 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
1471 if (entry->GetURL().GetOrigin() == last_entry->GetURL().GetOrigin() &&
1472 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
1473 was_restored) {
1474 entry->GetSSL() = last_entry->GetSSL();
1475 }
1476 } else {
John Abd-El-Malek3f247082017-12-07 19:02:191477 // In rapid back/forward navigations |handle| sometimes won't have a cert
1478 // (http://crbug.com/727892). So we use the handle's cert if it exists,
1479 // otherwise we only reuse the existing cert if the origins match.
1480 if (handle->GetSSLInfo().is_valid()) {
John Abd-El-Malekf36e05f2017-11-30 16:17:521481 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek3f247082017-12-07 19:02:191482 } else if (entry->GetURL().GetOrigin() != handle->GetURL().GetOrigin()) {
1483 entry->GetSSL() = SSLStatus();
1484 }
jam48cea9082017-02-15 06:13:291485 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141486
John Abd-El-Malek380d3c5922017-09-08 00:20:311487 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1488 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141489 bool has_cert = !!entry->GetSSL().certificate;
1490 if (is_same_document && was_restored) {
1491 UMA_HISTOGRAM_BOOLEAN(
1492 "Navigation.SecureSchemeHasSSLStatus."
1493 "ExistingPageSameDocumentRestoredBrowserInitiated",
1494 has_cert);
1495 } else if (is_same_document && !was_restored) {
1496 UMA_HISTOGRAM_BOOLEAN(
1497 "Navigation.SecureSchemeHasSSLStatus."
1498 "ExistingPageSameDocumentBrowserInitiated",
1499 has_cert);
1500 } else if (!is_same_document && was_restored) {
1501 UMA_HISTOGRAM_BOOLEAN(
1502 "Navigation.SecureSchemeHasSSLStatus."
1503 "ExistingPageRestoredBrowserInitiated",
1504 has_cert);
1505 } else {
1506 UMA_HISTOGRAM_BOOLEAN(
1507 "Navigation.SecureSchemeHasSSLStatus.ExistingPageBrowserInitiated",
1508 has_cert);
1509 }
1510 }
avicbdc4c12015-07-01 16:07:111511 } else {
1512 // This is renderer-initiated. The only kinds of renderer-initated
Charles Reis1378111f2017-11-08 21:44:061513 // navigations that are EXISTING_PAGE are reloads and history.replaceState,
avicbdc4c12015-07-01 16:07:111514 // which land us at the last committed entry.
1515 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101516
Mikel Astizba9cf2fd2017-12-17 10:38:101517 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
1518 // to avoid misleading interpretations (e.g. URLs paired with
1519 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
1520 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
1521 // | PAGE_TRANSITION_CLIENT_REDIRECT).
1522
Xida Chenf860d0c2019-01-07 18:43:521523 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(*entry, entry);
Mikel Astizba9cf2fd2017-12-17 10:38:101524
eugenebut604866f2017-05-10 21:35:361525 // If this is a same document navigation, then there's no SSLStatus in the
jam0576b132016-09-07 05:13:101526 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361527 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521528 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141529
John Abd-El-Malek380d3c5922017-09-08 00:20:311530 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1531 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141532 bool has_cert = !!entry->GetSSL().certificate;
1533 if (is_same_document) {
1534 UMA_HISTOGRAM_BOOLEAN(
1535 "Navigation.SecureSchemeHasSSLStatus."
1536 "ExistingPageSameDocumentRendererInitiated",
1537 has_cert);
1538 } else {
1539 UMA_HISTOGRAM_BOOLEAN(
1540 "Navigation.SecureSchemeHasSSLStatus."
1541 "ExistingPageDifferentDocumentRendererInitiated",
1542 has_cert);
1543 }
1544 }
avicbdc4c12015-07-01 16:07:111545 }
1546 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431547
[email protected]5ccd4dc2012-10-24 02:28:141548 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431549 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1550 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041551 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201552 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321553 if (entry->update_virtual_url_with_url())
1554 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141555
jam015ba062017-01-06 21:17:001556 // The site instance will normally be the same except
1557 // 1) session restore, when no site instance will be assigned or
1558 // 2) redirect, when the site instance is reset.
naskoaf182192016-08-11 02:12:011559 DCHECK(entry->site_instance() == nullptr ||
jam015ba062017-01-06 21:17:001560 !entry->GetRedirectChain().empty() ||
naskoaf182192016-08-11 02:12:011561 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431562
naskoaf182192016-08-11 02:12:011563 // Update the existing FrameNavigationEntry to ensure all of its members
1564 // reflect the parameters coming from the renderer process.
1565 entry->AddOrUpdateFrameEntry(
1566 rfh->frame_tree_node(), params.item_sequence_number,
1567 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581568 params.url, params.origin, params.referrer, params.redirects,
1569 params.page_state, params.method, params.post_id,
1570 nullptr /* blob_url_loader_factory */);
creis22a7b4c2016-04-28 07:20:301571
[email protected]5ccd4dc2012-10-24 02:28:141572 // The redirected to page should not inherit the favicon from the previous
1573 // page.
eugenebut604866f2017-05-10 21:35:361574 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:481575 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141576
[email protected]e9ba4472008-09-14 15:42:431577 // The entry we found in the list might be pending if the user hit
1578 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591579 // list, we can just discard the pending pointer). We should also discard the
1580 // pending entry if it corresponds to a different navigation, since that one
1581 // is now likely canceled. If it is not canceled, we will treat it as a new
1582 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431583 //
1584 // Note that we need to use the "internal" version since we don't want to
1585 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491586 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391587
[email protected]80858db52009-10-15 00:35:181588 // If a transient entry was removed, the indices might have changed, so we
1589 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111590 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431591}
1592
[email protected]d202a7c2012-01-04 07:53:471593void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321594 RenderFrameHostImpl* rfh,
clamy3bf35e3c2016-11-10 15:59:441595 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
Joe DeBlasio531e3d92018-11-06 06:26:121596 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441597 NavigationHandleImpl* handle) {
aviaf5660962015-06-30 15:12:291598 // This classification says that we have a pending entry that's the same as
1599 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091600 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291601 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431602
creis77c9aa32015-09-25 19:59:421603 // If we classified this correctly, the SiteInstance should not have changed.
1604 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1605
[email protected]e9ba4472008-09-14 15:42:431606 // We assign the entry's unique ID to be that of the new one. Since this is
1607 // always the result of a user action, we want to dismiss infobars, etc. like
1608 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421609 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511610 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431611
[email protected]a0e69262009-06-03 19:08:481612 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431613 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1614 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321615 if (existing_entry->update_virtual_url_with_url())
1616 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041617 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481618
jamd208b90ce2016-09-01 16:58:161619 // If a user presses enter in the omnibox and the server redirects, the URL
Joe DeBlasio531e3d92018-11-06 06:26:121620 // might change (but it's still considered a SAME_PAGE navigation), so we must
1621 // update the SSL status if we perform a network request (e.g. a
1622 // non-same-document navigation). Requests that don't result in a network
1623 // request do not have a valid SSL status, but since the document didn't
1624 // change, the previous SSLStatus is still valid.
1625 if (!is_same_document)
1626 existing_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
jamd208b90ce2016-09-01 16:58:161627
John Abd-El-Malek509dfd62017-09-05 21:34:491628 if (existing_entry->GetURL().SchemeIs(url::kHttpsScheme) &&
John Abd-El-Malek380d3c5922017-09-08 00:20:311629 !rfh->GetParent() && handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141630 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.SamePage",
1631 !!existing_entry->GetSSL().certificate);
1632 }
1633
jianlid26f6c92016-10-12 21:03:171634 // The extra headers may have changed due to reloading with different headers.
1635 existing_entry->set_extra_headers(pending_entry_->extra_headers());
1636
naskoaf182192016-08-11 02:12:011637 // Update the existing FrameNavigationEntry to ensure all of its members
1638 // reflect the parameters coming from the renderer process.
1639 existing_entry->AddOrUpdateFrameEntry(
1640 rfh->frame_tree_node(), params.item_sequence_number,
1641 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581642 params.url, params.origin, params.referrer, params.redirects,
1643 params.page_state, params.method, params.post_id,
1644 nullptr /* blob_url_loader_factory */);
[email protected]b77686522013-12-11 20:34:191645
[email protected]cbab76d2008-10-13 22:42:471646 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431647}
1648
[email protected]d202a7c2012-01-04 07:53:471649void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321650 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521651 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361652 bool is_same_document,
creis1857908a2016-02-25 20:31:521653 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261654 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1655 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111656
[email protected]e9ba4472008-09-14 15:42:431657 // Manual subframe navigations just get the current entry cloned so the user
1658 // can go back or forward to it. The actual subframe information will be
1659 // stored in the page state for each of those entries. This happens out of
1660 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091661 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1662 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381663
Mikel Astizba9cf2fd2017-12-17 10:38:101664 // The DCHECK below documents the fact that we don't know of any situation
1665 // where |replace_entry| is true for subframe navigations. This simplifies
1666 // reasoning about the replacement struct for subframes (see
1667 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
1668 DCHECK(!replace_entry);
1669
creisce0ef3572017-01-26 17:53:081670 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1671 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481672 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisce0ef3572017-01-26 17:53:081673 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581674 params.url, &params.origin, params.referrer, params.redirects,
1675 params.page_state, params.method, params.post_id,
1676 nullptr /* blob_url_loader_factory */));
Charles Reisf44482022017-10-13 21:15:031677
creisce0ef3572017-01-26 17:53:081678 std::unique_ptr<NavigationEntryImpl> new_entry =
1679 GetLastCommittedEntry()->CloneAndReplace(
eugenebut604866f2017-05-10 21:35:361680 frame_entry.get(), is_same_document, rfh->frame_tree_node(),
creisce0ef3572017-01-26 17:53:081681 delegate_->GetFrameTree()->root());
creise062d542015-08-25 02:01:551682
creisce0ef3572017-01-26 17:53:081683 // TODO(creis): Update this to add the frame_entry if we can't find the one
1684 // to replace, which can happen due to a unique name change. See
1685 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1686 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381687
creis1857908a2016-02-25 20:31:521688 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431689}
1690
[email protected]d202a7c2012-01-04 07:53:471691bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321692 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221693 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291694 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1695 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1696
[email protected]e9ba4472008-09-14 15:42:431697 // We're guaranteed to have a previously committed entry, and we now need to
1698 // handle navigation inside of a subframe in it without creating a new entry.
1699 DCHECK(GetLastCommittedEntry());
1700
creis913c63ce2016-07-16 19:52:521701 // For newly created subframes, we don't need to send a commit notification.
1702 // This is only necessary for history navigations in subframes.
1703 bool send_commit_notification = false;
1704
1705 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1706 // a history navigation. Update the last committed index accordingly.
1707 // If we don't recognize the |nav_entry_id|, it might be a recently pruned
1708 // entry. We'll handle it below.
avi98405c22015-05-21 20:47:061709 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511710 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
creis3cdc3b02015-05-29 23:00:471711 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061712 // Make sure that a subframe commit isn't changing the main frame's
1713 // origin. Otherwise the renderer process may be confused, leading to a
1714 // URL spoof. We can't check the path since that may change
1715 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:571716 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
1717 // about:blank, file, and unique origins are more subtle to get right.
Eugene But9fb98d12018-05-22 18:28:331718 // We'll abstract out the relevant checks from IsURLSameDocumentNavigation
1719 // and share them here. See https://crbug.com/618104.
creis37988b92016-06-10 18:03:571720 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
1721 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
1722 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
1723 dest_top_url.SchemeIsHTTPOrHTTPS() &&
1724 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511725 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1726 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061727 }
creis3cdc3b02015-05-29 23:00:471728
creis913c63ce2016-07-16 19:52:521729 // We only need to discard the pending entry in this history navigation
1730 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:061731 last_committed_entry_index_ = entry_index;
1732 DiscardNonCommittedEntriesInternal();
creis913c63ce2016-07-16 19:52:521733
1734 // History navigations should send a commit notification.
1735 send_commit_notification = true;
avi98405c22015-05-21 20:47:061736 }
[email protected]e9ba4472008-09-14 15:42:431737 }
[email protected]f233e4232013-02-23 00:55:141738
creisce0ef3572017-01-26 17:53:081739 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1740 // it may be a "history auto" case where we update an existing one.
1741 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
1742 last_committed->AddOrUpdateFrameEntry(
1743 rfh->frame_tree_node(), params.item_sequence_number,
1744 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581745 params.url, params.origin, params.referrer, params.redirects,
1746 params.page_state, params.method, params.post_id,
1747 nullptr /* blob_url_loader_factory */);
creis625a0c7d2015-03-24 23:17:121748
creis913c63ce2016-07-16 19:52:521749 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:431750}
1751
[email protected]d202a7c2012-01-04 07:53:471752int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231753 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031754 for (size_t i = 0; i < entries_.size(); ++i) {
1755 if (entries_[i].get() == entry)
1756 return i;
1757 }
1758 return -1;
[email protected]765b35502008-08-21 00:51:201759}
1760
Eugene But7cc259d2017-10-09 23:52:491761// There are two general cases where a navigation is "same-document":
avidb7d1d22015-06-08 21:21:501762// 1. A fragment navigation, in which the url is kept the same except for the
1763// reference fragment.
1764// 2. A history API navigation (pushState and replaceState). This case is
Eugene But7cc259d2017-10-09 23:52:491765// always same-document, but the urls are not guaranteed to match excluding
1766// the fragment. The relevant spec allows pushState/replaceState to any URL
1767// on the same origin.
avidb7d1d22015-06-08 21:21:501768// However, due to reloads, even identical urls are *not* guaranteed to be
Eugene But7cc259d2017-10-09 23:52:491769// same-document navigations, we have to trust the renderer almost entirely.
avidb7d1d22015-06-08 21:21:501770// The one thing we do know is that cross-origin navigations will *never* be
Eugene But7cc259d2017-10-09 23:52:491771// same-document. Therefore, trust the renderer if the URLs are on the same
1772// origin, and assume the renderer is malicious if a cross-origin navigation
1773// claims to be same-document.
creisf164daa2016-06-07 00:17:051774//
1775// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1776// which are likely redundant with each other. Be careful about data URLs vs
1777// about:blank, both of which are unique origins and thus not considered equal.
Eugene But7cc259d2017-10-09 23:52:491778bool NavigationControllerImpl::IsURLSameDocumentNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121779 const GURL& url,
creisf164daa2016-06-07 00:17:051780 const url::Origin& origin,
Eugene But7cc259d2017-10-09 23:52:491781 bool renderer_says_same_document,
Xida Chenf860d0c2019-01-07 18:43:521782 RenderFrameHost* rfh) const {
creis225a7432016-06-03 22:56:271783 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501784 GURL last_committed_url;
1785 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271786 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1787 // which might be empty in a new RenderFrameHost after a process swap.
1788 // Here, we care about the last committed URL in the FrameTreeNode,
1789 // regardless of which process it is in.
1790 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501791 } else {
1792 NavigationEntry* last_committed = GetLastCommittedEntry();
1793 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1794 // might Blink say that a navigation is in-page yet there be no last-
1795 // committed entry?
1796 if (!last_committed)
1797 return false;
1798 last_committed_url = last_committed->GetURL();
1799 }
1800
1801 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271802 const url::Origin& committed_origin =
1803 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501804 bool is_same_origin = last_committed_url.is_empty() ||
1805 // TODO(japhet): We should only permit navigations
1806 // originating from about:blank to be in-page if the
1807 // about:blank is the first document that frame loaded.
1808 // We don't have sufficient information to identify
1809 // that case at the moment, so always allow about:blank
1810 // for now.
csharrisona3bd0b32016-10-19 18:40:481811 last_committed_url == url::kAboutBlankURL ||
avidb7d1d22015-06-08 21:21:501812 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051813 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501814 !prefs.web_security_enabled ||
1815 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471816 committed_origin.scheme() == url::kFileScheme);
Eugene But7cc259d2017-10-09 23:52:491817 if (!is_same_origin && renderer_says_same_document) {
avidb7d1d22015-06-08 21:21:501818 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1819 bad_message::NC_IN_PAGE_NAVIGATION);
1820 }
Eugene But7cc259d2017-10-09 23:52:491821 return is_same_origin && renderer_says_same_document;
[email protected]e9ba4472008-09-14 15:42:431822}
1823
Xida Chenf860d0c2019-01-07 18:43:521824void NavigationControllerImpl::CopyStateFrom(const NavigationController& temp,
Francois Dorayeaace782017-06-21 16:37:241825 bool needs_reload) {
Xida Chenf860d0c2019-01-07 18:43:521826 const NavigationControllerImpl& source =
1827 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571828 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551829 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571830
Xida Chenf860d0c2019-01-07 18:43:521831 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571832 return; // Nothing new to do.
1833
Francois Dorayeaace782017-06-21 16:37:241834 needs_reload_ = needs_reload;
Bo Liucdfa4b12018-11-06 00:21:441835 needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
Xida Chenf860d0c2019-01-07 18:43:521836 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571837
Xida Chenf860d0c2019-01-07 18:43:521838 for (auto it = source.session_storage_namespace_map_.begin();
1839 it != source.session_storage_namespace_map_.end(); ++it) {
[email protected]fdac6ade2013-07-20 01:06:301840 SessionStorageNamespaceImpl* source_namespace =
1841 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1842 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1843 }
[email protected]4e6419c2010-01-15 04:50:341844
Xida Chenf860d0c2019-01-07 18:43:521845 FinishRestore(source.last_committed_entry_index_,
toyoshim0df1d3a2016-09-09 09:52:481846 RestoreType::CURRENT_SESSION);
[email protected]ce3fa3c2009-04-20 19:55:571847}
1848
[email protected]d202a7c2012-01-04 07:53:471849void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571850 NavigationController* temp,
1851 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161852 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011853 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161854
[email protected]d202a7c2012-01-04 07:53:471855 NavigationControllerImpl* source =
1856 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251857
avi2b177592014-12-10 02:08:021858 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011859 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251860
[email protected]474f8512013-05-31 22:31:161861 // We now have one entry, possibly with a new pending entry. Ensure that
1862 // adding the entries from source won't put us over the limit.
1863 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571864 if (!replace_entry)
1865 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251866
[email protected]47e020a2010-10-15 14:43:371867 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021868 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161869 // since it has not committed in source.
1870 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251871 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551872 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251873 else
1874 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571875
1876 // Ignore the source's current entry if merging with replacement.
1877 // TODO(davidben): This should preserve entries forward of the current
1878 // too. http://crbug.com/317872
1879 if (replace_entry && max_source_index > 0)
1880 max_source_index--;
1881
Xida Chenf860d0c2019-01-07 18:43:521882 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251883
1884 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551885 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141886
avi2b177592014-12-10 02:08:021887 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1888 GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251889}
1890
[email protected]79368982013-11-13 01:11:011891bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161892 // If there is no last committed entry, we cannot prune. Even if there is a
1893 // pending entry, it may not commit, leaving this WebContents blank, despite
1894 // possibly giving it new entries via CopyStateFromAndPrune.
1895 if (last_committed_entry_index_ == -1)
1896 return false;
[email protected]9350602e2013-02-26 23:27:441897
[email protected]474f8512013-05-31 22:31:161898 // We cannot prune if there is a pending entry at an existing entry index.
1899 // It may not commit, so we have to keep the last committed entry, and thus
1900 // there is no sensible place to keep the pending entry. It is ok to have
1901 // a new pending entry, which can optionally commit as a new navigation.
1902 if (pending_entry_index_ != -1)
1903 return false;
1904
1905 // We should not prune if we are currently showing a transient entry.
1906 if (transient_entry_index_ != -1)
1907 return false;
1908
1909 return true;
1910}
1911
[email protected]79368982013-11-13 01:11:011912void NavigationControllerImpl::PruneAllButLastCommitted() {
1913 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161914
avi2b177592014-12-10 02:08:021915 DCHECK_EQ(0, last_committed_entry_index_);
1916 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441917
avi2b177592014-12-10 02:08:021918 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1919 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441920}
1921
[email protected]79368982013-11-13 01:11:011922void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161923 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011924 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261925
[email protected]474f8512013-05-31 22:31:161926 // Erase all entries but the last committed entry. There may still be a
1927 // new pending entry after this.
1928 entries_.erase(entries_.begin(),
1929 entries_.begin() + last_committed_entry_index_);
1930 entries_.erase(entries_.begin() + 1, entries_.end());
1931 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261932}
1933
Christian Dullweber1af31e62018-02-22 11:49:481934void NavigationControllerImpl::DeleteNavigationEntries(
1935 const DeletionPredicate& deletionPredicate) {
1936 // It is up to callers to check the invariants before calling this.
1937 CHECK(CanPruneAllButLastCommitted());
1938 std::vector<int> delete_indices;
1939 for (size_t i = 0; i < entries_.size(); i++) {
1940 if (i != static_cast<size_t>(last_committed_entry_index_) &&
Xida Chenf860d0c2019-01-07 18:43:521941 deletionPredicate.Run(*entries_[i])) {
Christian Dullweber1af31e62018-02-22 11:49:481942 delete_indices.push_back(i);
1943 }
1944 }
1945 if (delete_indices.empty())
1946 return;
1947
1948 if (delete_indices.size() == GetEntryCount() - 1U) {
1949 PruneAllButLastCommitted();
1950 } else {
1951 // Do the deletion in reverse to preserve indices.
1952 for (auto it = delete_indices.rbegin(); it != delete_indices.rend(); ++it) {
1953 RemoveEntryAtIndex(*it);
1954 }
1955 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1956 GetEntryCount());
1957 }
1958 delegate()->NotifyNavigationEntriesDeleted();
1959}
1960
clamy987a3752018-05-03 17:36:261961void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
1962 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
1963 // progress, since this will cause a use-after-free. (We only allow this
1964 // when the tab is being destroyed for shutdown, since it won't return to
1965 // NavigateToEntry in that case.) http://crbug.com/347742.
1966 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
1967
1968 if (was_failure && pending_entry_) {
1969 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1970 } else {
1971 failed_pending_entry_id_ = 0;
1972 }
1973
1974 if (pending_entry_) {
1975 if (pending_entry_index_ == -1)
1976 delete pending_entry_;
1977 pending_entry_index_ = -1;
1978 pending_entry_ = nullptr;
1979 }
1980}
1981
1982void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
1983 if (pending_entry_)
1984 pending_entry_->set_ssl_error(error);
1985}
1986
Camille Lamy5193caa2018-10-12 11:59:421987#if defined(OS_ANDROID)
1988// static
1989bool NavigationControllerImpl::ValidateDataURLAsString(
1990 const scoped_refptr<const base::RefCountedString>& data_url_as_string) {
1991 if (!data_url_as_string)
1992 return false;
1993
1994 if (data_url_as_string->size() > kMaxLengthOfDataURLString)
1995 return false;
1996
1997 // The number of characters that is enough for validating a data: URI.
1998 // From the GURL's POV, the only important part here is scheme, it doesn't
1999 // check the actual content. Thus we can take only the prefix of the url, to
2000 // avoid unneeded copying of a potentially long string.
2001 const size_t kDataUriPrefixMaxLen = 64;
2002 GURL data_url(
2003 std::string(data_url_as_string->front_as<char>(),
2004 std::min(data_url_as_string->size(), kDataUriPrefixMaxLen)));
2005 if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
2006 return false;
2007
2008 return true;
2009}
2010#endif
2011
clamy987a3752018-05-03 17:36:262012bool NavigationControllerImpl::StartHistoryNavigationInNewSubframe(
2013 RenderFrameHostImpl* render_frame_host,
2014 const GURL& default_url) {
2015 NavigationEntryImpl* entry =
2016 GetEntryWithUniqueID(render_frame_host->nav_entry_id());
2017 if (!entry)
2018 return false;
2019
2020 FrameNavigationEntry* frame_entry =
2021 entry->GetFrameEntry(render_frame_host->frame_tree_node());
2022 if (!frame_entry)
2023 return false;
2024
2025 // Track how often history navigations load a different URL into a subframe
2026 // than the frame's default URL.
2027 bool restoring_different_url = frame_entry->url() != default_url;
2028 UMA_HISTOGRAM_BOOLEAN("SessionRestore.RestoredSubframeURL",
2029 restoring_different_url);
2030 // If this frame's unique name uses a frame path, record the name length.
2031 // If these names are long in practice, then a proposed plan to truncate
2032 // unique names might affect restore behavior, since it is complex to deal
2033 // with truncated names inside frame paths.
2034 if (restoring_different_url) {
2035 const std::string& unique_name =
2036 render_frame_host->frame_tree_node()->unique_name();
2037 const char kFramePathPrefix[] = "<!--framePath ";
2038 if (base::StartsWith(unique_name, kFramePathPrefix,
2039 base::CompareCase::SENSITIVE)) {
Steven Holte95922222018-09-14 20:06:232040 UMA_HISTOGRAM_COUNTS_1M("SessionRestore.RestoreSubframeFramePathLength",
2041 unique_name.size());
clamy987a3752018-05-03 17:36:262042 }
2043 }
2044
Camille Lamy5193caa2018-10-12 11:59:422045 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
Xida Chenf860d0c2019-01-07 18:43:522046 render_frame_host->frame_tree_node(), *entry, frame_entry,
clamyea99ea12018-05-28 13:54:232047 ReloadType::NONE, false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422048 true /* is_history_navigation_in_new_child */);
clamyea99ea12018-05-28 13:54:232049
2050 if (!request)
2051 return false;
2052
2053 render_frame_host->frame_tree_node()->navigator()->Navigate(
2054 std::move(request), ReloadType::NONE, RestoreType::NONE);
2055
2056 return true;
clamy987a3752018-05-03 17:36:262057}
2058
2059void NavigationControllerImpl::NavigateFromFrameProxy(
2060 RenderFrameHostImpl* render_frame_host,
2061 const GURL& url,
Nasko Oskov93e7c55c2018-12-19 01:59:292062 const url::Origin& initiator_origin,
clamy987a3752018-05-03 17:36:262063 bool is_renderer_initiated,
2064 SiteInstance* source_site_instance,
2065 const Referrer& referrer,
2066 ui::PageTransition page_transition,
2067 bool should_replace_current_entry,
Charlie Harrison8c113a32019-01-07 16:08:292068 NavigationDownloadPolicy download_policy,
clamy987a3752018-05-03 17:36:262069 const std::string& method,
2070 scoped_refptr<network::ResourceRequestBody> post_body,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092071 const std::string& extra_headers,
2072 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
clamy987a3752018-05-03 17:36:262073 FrameTreeNode* node = render_frame_host->frame_tree_node();
Nasko Oskov18006bc2018-12-06 02:53:582074
2075 // TODO(nasko): Plumb through the real initiator origin and use it to
2076 // compute the origin to use.
2077 url::Origin origin_to_use;
2078
clamy987a3752018-05-03 17:36:262079 // Create a NavigationEntry for the transfer, without making it the pending
2080 // entry. Subframe transfers should have a clone of the last committed entry
2081 // with a FrameNavigationEntry for the target frame. Main frame transfers
2082 // should have a new NavigationEntry.
2083 // TODO(creis): Make this unnecessary by creating (and validating) the params
2084 // directly, passing them to the destination RenderFrameHost. See
2085 // https://crbug.com/536906.
2086 std::unique_ptr<NavigationEntryImpl> entry;
2087 if (!node->IsMainFrame()) {
2088 // Subframe case: create FrameNavigationEntry.
2089 if (GetLastCommittedEntry()) {
2090 entry = GetLastCommittedEntry()->Clone();
2091 entry->set_extra_headers(extra_headers);
2092 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2093 // Renderer-initiated navigation that target a remote frame are currently
2094 // classified as browser-initiated when this one has already navigated.
2095 // See https://crbug.com/722251.
2096 } else {
2097 // If there's no last committed entry, create an entry for about:blank
2098 // with a subframe entry for our destination.
2099 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
2100 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2101 GURL(url::kAboutBlankURL), referrer, page_transition,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092102 is_renderer_initiated, extra_headers, browser_context_,
2103 nullptr /* blob_url_loader_factory */));
clamy987a3752018-05-03 17:36:262104 }
2105 entry->AddOrUpdateFrameEntry(
2106 node, -1, -1, nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582107 static_cast<SiteInstanceImpl*>(source_site_instance), url,
2108 origin_to_use, referrer, std::vector<GURL>(), PageState(), method, -1,
2109 blob_url_loader_factory);
clamy987a3752018-05-03 17:36:262110 } else {
2111 // Main frame case.
2112 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2113 url, referrer, page_transition, is_renderer_initiated, extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092114 browser_context_, blob_url_loader_factory));
clamy987a3752018-05-03 17:36:262115 entry->root_node()->frame_entry->set_source_site_instance(
2116 static_cast<SiteInstanceImpl*>(source_site_instance));
2117 entry->root_node()->frame_entry->set_method(method);
2118 }
clamy987a3752018-05-03 17:36:262119
2120 // Don't allow an entry replacement if there is no entry to replace.
2121 // http://crbug.com/457149
2122 if (should_replace_current_entry && GetEntryCount() > 0)
2123 entry->set_should_replace_entry(true);
Camille Lamy5193caa2018-10-12 11:59:422124
2125 bool override_user_agent = false;
clamy987a3752018-05-03 17:36:262126 if (GetLastCommittedEntry() &&
2127 GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
2128 entry->SetIsOverridingUserAgent(true);
Camille Lamy5193caa2018-10-12 11:59:422129 override_user_agent = true;
clamy987a3752018-05-03 17:36:262130 }
2131 // TODO(creis): Set user gesture and intent received timestamp on Android.
2132
2133 // We may not have successfully added the FrameNavigationEntry to |entry|
2134 // above (per https://crbug.com/608402), in which case we create it from
2135 // scratch. This works because we do not depend on |frame_entry| being inside
2136 // |entry| during NavigateToEntry. This will go away when we shortcut this
2137 // further in https://crbug.com/536906.
2138 scoped_refptr<FrameNavigationEntry> frame_entry(entry->GetFrameEntry(node));
2139 if (!frame_entry) {
2140 frame_entry = new FrameNavigationEntry(
2141 node->unique_name(), -1, -1, nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582142 static_cast<SiteInstanceImpl*>(source_site_instance), url,
2143 &origin_to_use, referrer, std::vector<GURL>(), PageState(), method, -1,
2144 blob_url_loader_factory);
clamy987a3752018-05-03 17:36:262145 }
2146
Camille Lamy5193caa2018-10-12 11:59:422147 LoadURLParams params(url);
Nasko Oskov93e7c55c2018-12-19 01:59:292148 params.initiator_origin = initiator_origin;
Camille Lamy5193caa2018-10-12 11:59:422149 params.source_site_instance = source_site_instance;
2150 params.load_type = method == "POST" ? LOAD_TYPE_HTTP_POST : LOAD_TYPE_DEFAULT;
2151 params.transition_type = page_transition;
2152 params.frame_tree_node_id =
2153 render_frame_host->frame_tree_node()->frame_tree_node_id();
2154 params.referrer = referrer;
2155 /* params.redirect_chain: skip */
2156 params.extra_headers = extra_headers;
2157 params.is_renderer_initiated = is_renderer_initiated;
2158 params.override_user_agent = UA_OVERRIDE_INHERIT;
2159 /* params.base_url_for_data_url: skip */
2160 /* params.virtual_url_for_data_url: skip */
2161 /* params.data_url_as_string: skip */
2162 params.post_data = post_body;
2163 params.can_load_local_resources = false;
2164 params.should_replace_current_entry = false;
2165 /* params.frame_name: skip */
2166 // TODO(clamy): See if user gesture should be propagated to this function.
2167 params.has_user_gesture = false;
2168 params.should_clear_history_list = false;
2169 params.started_from_context_menu = false;
2170 /* params.navigation_ui_data: skip */
2171 /* params.input_start: skip */
2172 params.was_activated = WasActivatedOption::kUnknown;
2173
2174 std::unique_ptr<NavigationRequest> request =
2175 CreateNavigationRequestFromLoadParams(
2176 render_frame_host->frame_tree_node(), params, override_user_agent,
2177 should_replace_current_entry, false /* has_user_gesture */,
Xida Chenf860d0c2019-01-07 18:43:522178 download_policy, ReloadType::NONE, *entry, frame_entry.get());
clamyea99ea12018-05-28 13:54:232179
2180 if (!request)
2181 return;
2182
2183 render_frame_host->frame_tree_node()->navigator()->Navigate(
2184 std::move(request), ReloadType::NONE, RestoreType::NONE);
clamy987a3752018-05-03 17:36:262185}
2186
[email protected]d1198fd2012-08-13 22:50:192187void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:302188 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:212189 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:192190 if (!session_storage_namespace)
2191 return;
2192
2193 // We can't overwrite an existing SessionStorage without violating spec.
2194 // Attempts to do so may give a tab access to another tab's session storage
2195 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:302196 bool successful_insert = session_storage_namespace_map_.insert(
2197 make_pair(partition_id,
2198 static_cast<SessionStorageNamespaceImpl*>(
2199 session_storage_namespace)))
2200 .second;
2201 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:192202}
2203
Xida Chenf860d0c2019-01-07 18:43:522204bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:462205 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:102206 !GetLastCommittedEntry() &&
2207 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:462208}
2209
[email protected]a26023822011-12-29 00:23:552210SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:302211NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
2212 std::string partition_id;
2213 if (instance) {
2214 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
2215 // this if statement so |instance| must not be NULL.
2216 partition_id =
2217 GetContentClient()->browser()->GetStoragePartitionIdForSite(
2218 browser_context_, instance->GetSiteURL());
2219 }
[email protected]d1198fd2012-08-13 22:50:192220
[email protected]fdac6ade2013-07-20 01:06:302221 // TODO(ajwong): Should this use the |partition_id| directly rather than
2222 // re-lookup via |instance|? http://crbug.com/142685
2223 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:032224 BrowserContext::GetStoragePartition(browser_context_, instance);
2225 DOMStorageContextWrapper* context_wrapper =
2226 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
2227
2228 SessionStorageNamespaceMap::const_iterator it =
2229 session_storage_namespace_map_.find(partition_id);
2230 if (it != session_storage_namespace_map_.end()) {
2231 // Ensure that this namespace actually belongs to this partition.
2232 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
2233 IsFromContext(context_wrapper));
2234 return it->second.get();
2235 }
2236
2237 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:102238 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
2239 SessionStorageNamespaceImpl::Create(context_wrapper);
2240 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
2241 session_storage_namespace.get();
2242 session_storage_namespace_map_[partition_id] =
2243 std::move(session_storage_namespace);
[email protected]fdac6ade2013-07-20 01:06:302244
Daniel Murphy31bbb8b12018-02-07 21:44:102245 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:302246}
2247
2248SessionStorageNamespace*
2249NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
2250 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
Ivan Kotenkov2c0d2bb32017-11-01 15:41:282251 return GetSessionStorageNamespace(nullptr);
[email protected]fdac6ade2013-07-20 01:06:302252}
2253
2254const SessionStorageNamespaceMap&
Xida Chenf860d0c2019-01-07 18:43:522255NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
[email protected]fdac6ade2013-07-20 01:06:302256 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:552257}
[email protected]d202a7c2012-01-04 07:53:472258
Xida Chenf860d0c2019-01-07 18:43:522259bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:562260 return needs_reload_;
2261}
[email protected]a26023822011-12-29 00:23:552262
[email protected]46bb5e9c2013-10-03 22:16:472263void NavigationControllerImpl::SetNeedsReload() {
2264 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:442265 needs_reload_type_ = NeedsReloadType::kRequestedByClient;
jaekyunc8cefa82015-01-09 20:14:542266
2267 if (last_committed_entry_index_ != -1) {
2268 entries_[last_committed_entry_index_]->SetTransitionType(
2269 ui::PAGE_TRANSITION_RELOAD);
2270 }
[email protected]46bb5e9c2013-10-03 22:16:472271}
2272
[email protected]d202a7c2012-01-04 07:53:472273void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:552274 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:122275 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:312276
2277 DiscardNonCommittedEntries();
2278
2279 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:122280 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:312281 last_committed_entry_index_--;
2282}
2283
[email protected]d202a7c2012-01-04 07:53:472284void NavigationControllerImpl::DiscardNonCommittedEntries() {
pdr15f5b5b2017-06-20 00:58:002285 bool transient = transient_entry_index_ != -1;
[email protected]cbab76d2008-10-13 22:42:472286 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:292287
pdr15f5b5b2017-06-20 00:58:002288 // If there was a transient entry, invalidate everything so the new active
2289 // entry state is shown.
2290 if (transient) {
2291 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:472292 }
initial.commit09911bf2008-07-26 23:55:292293}
2294
Xida Chenf860d0c2019-01-07 18:43:522295NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
arthursonzogni5c4c202d2017-04-25 23:41:272296 // If there is no pending_entry_, there should be no pending_entry_index_.
2297 DCHECK(pending_entry_ || pending_entry_index_ == -1);
2298
2299 // If there is a pending_entry_index_, then pending_entry_ must be the entry
2300 // at that index.
2301 DCHECK(pending_entry_index_ == -1 ||
2302 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
2303
[email protected]022af742011-12-28 18:37:252304 return pending_entry_;
2305}
2306
Xida Chenf860d0c2019-01-07 18:43:522307int NavigationControllerImpl::GetPendingEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:272308 // The pending entry index must always be less than the number of entries.
2309 // If there are no entries, it must be exactly -1.
2310 DCHECK_LT(pending_entry_index_, GetEntryCount());
2311 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:552312 return pending_entry_index_;
2313}
2314
avi25764702015-06-23 15:43:372315void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:572316 std::unique_ptr<NavigationEntryImpl> entry,
2317 bool replace) {
mastiz7eddb5f72016-06-23 09:52:452318 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
2319 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:202320
avi5cad4912015-06-19 05:25:442321 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
2322 // need to keep continuity with the pending entry, so copy the pending entry's
2323 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
2324 // then the renderer navigated on its own, independent of the pending entry,
2325 // so don't copy anything.
2326 if (pending_entry_ && pending_entry_index_ == -1)
2327 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:202328
[email protected]cbab76d2008-10-13 22:42:472329 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:202330
2331 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:222332
2333 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:182334 if (replace && current_size > 0) {
Mikel Astizba9cf2fd2017-12-17 10:38:102335 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Xida Chenf860d0c2019-01-07 18:43:522336 *entries_[last_committed_entry_index_], entry.get());
dcheng36b6aec92015-12-26 06:16:362337 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:222338 return;
2339 }
[email protected]765b35502008-08-21 00:51:202340
creis37979a62015-08-04 19:48:182341 // We shouldn't see replace == true when there's no committed entries.
2342 DCHECK(!replace);
2343
[email protected]765b35502008-08-21 00:51:202344 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:452345 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:312346 // last_committed_entry_index_ must be updated here since calls to
2347 // NotifyPrunedEntries() below may re-enter and we must make sure
2348 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:492349 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:312350 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:492351 num_pruned++;
[email protected]765b35502008-08-21 00:51:202352 entries_.pop_back();
2353 current_size--;
2354 }
[email protected]c12bf1a12008-09-17 16:28:492355 if (num_pruned > 0) // Only notify if we did prune something.
2356 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:202357 }
2358
[email protected]944822b2012-03-02 20:57:252359 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:202360
dcheng36b6aec92015-12-26 06:16:362361 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:202362 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:292363}
2364
[email protected]944822b2012-03-02 20:57:252365void NavigationControllerImpl::PruneOldestEntryIfFull() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:162366 if (entries_.size() < max_entry_count())
2367 return;
2368
2369 DCHECK_EQ(max_entry_count(), entries_.size());
2370 DCHECK_GT(last_committed_entry_index_, 0);
2371 RemoveEntryAtIndex(0);
2372 NotifyPrunedEntries(this, true, 1);
2373 // TODO(crbug.com/907167): Consider removing the earliest skippable entry
2374 // instead of the first entry.
[email protected]944822b2012-03-02 20:57:252375}
2376
clamy3cb9bea92018-07-10 12:42:022377void NavigationControllerImpl::NavigateToExistingPendingEntry(
2378 ReloadType reload_type) {
arthursonzogni5c4c202d2017-04-25 23:41:272379 DCHECK(pending_entry_);
clamy3cb9bea92018-07-10 12:42:022380 DCHECK(IsInitialNavigation() || pending_entry_index_ != -1);
2381 DCHECK(!IsRendererDebugURL(pending_entry_->GetURL()));
[email protected]72097fd02010-01-21 23:36:012382 needs_reload_ = false;
Arthur Sonzogni620cec62018-12-13 13:08:572383 FrameTreeNode* root = delegate_->GetFrameTree()->root();
2384 int nav_entry_id = pending_entry_->GetUniqueID();
2385
2386 // BackForwardCache:
2387 // Try to restore a document from the BackForwardCache.
2388 if (auto rfh = back_forward_cache_.RestoreDocument(nav_entry_id)) {
2389 root->render_manager()->RestoreFromBackForwardCache(std::move(rfh));
2390 CommitRestoreFromBackForwardCache();
2391 return;
2392 }
[email protected]72097fd02010-01-21 23:36:012393
[email protected]83c2e232011-10-07 21:36:462394 // If we were navigating to a slow-to-commit page, and the user performs
2395 // a session history navigation to the last committed page, RenderViewHost
2396 // will force the throbber to start, but WebKit will essentially ignore the
2397 // navigation, and won't send a message to stop the throbber. To prevent this
2398 // from happening, we drop the navigation here and stop the slow-to-commit
2399 // page from loading (which would normally happen during the navigation).
clamy3cb9bea92018-07-10 12:42:022400 if (pending_entry_index_ == last_committed_entry_index_ &&
arthursonzogni5c4c202d2017-04-25 23:41:272401 pending_entry_->restore_type() == RestoreType::NONE &&
2402 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
[email protected]ec6c05f2013-10-23 18:41:572403 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:122404
avi668f5232017-06-22 22:52:172405 // If an interstitial page is showing, we want to close it to get back to
2406 // what was showing before.
2407 //
2408 // There are two ways to get the interstitial page given a WebContents.
2409 // Because WebContents::GetInterstitialPage() returns null between the
2410 // interstitial's Show() method being called and the interstitial becoming
2411 // visible, while InterstitialPage::GetInterstitialPage() returns the
2412 // interstitial during that time, use the latter.
2413 InterstitialPage* interstitial =
2414 InterstitialPage::GetInterstitialPage(GetWebContents());
2415 if (interstitial)
2416 interstitial->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:122417
[email protected]83c2e232011-10-07 21:36:462418 DiscardNonCommittedEntries();
2419 return;
2420 }
2421
creisce0ef3572017-01-26 17:53:082422 // Compare FrameNavigationEntries to see which frames in the tree need to be
2423 // navigated.
clamy3cb9bea92018-07-10 12:42:022424 std::vector<std::unique_ptr<NavigationRequest>> same_document_loads;
2425 std::vector<std::unique_ptr<NavigationRequest>> different_document_loads;
creis4e2ecb72015-06-20 00:46:302426 if (GetLastCommittedEntry()) {
clamy3cb9bea92018-07-10 12:42:022427 FindFramesToNavigate(root, reload_type, &same_document_loads,
2428 &different_document_loads);
creis4e2ecb72015-06-20 00:46:302429 }
2430
2431 if (same_document_loads.empty() && different_document_loads.empty()) {
2432 // If we don't have any frames to navigate at this point, either
2433 // (1) there is no previous history entry to compare against, or
2434 // (2) we were unable to match any frames by name. In the first case,
2435 // doing a different document navigation to the root item is the only valid
2436 // thing to do. In the second case, we should have been able to find a
2437 // frame to navigate based on names if this were a same document
2438 // navigation, so we can safely assume this is the different document case.
clamy3cb9bea92018-07-10 12:42:022439 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422440 CreateNavigationRequestFromEntry(
Xida Chenf860d0c2019-01-07 18:43:522441 root, *pending_entry_, pending_entry_->GetFrameEntry(root),
clamy3cb9bea92018-07-10 12:42:022442 reload_type, false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422443 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022444 if (!navigation_request) {
2445 // This navigation cannot start (e.g. the URL is invalid), delete the
2446 // pending NavigationEntry.
2447 DiscardPendingEntry(false);
2448 return;
2449 }
2450 different_document_loads.push_back(std::move(navigation_request));
creis4e2ecb72015-06-20 00:46:302451 }
2452
clamy3cb9bea92018-07-10 12:42:022453 // If an interstitial page is showing, the previous renderer is blocked and
2454 // cannot make new requests. Unblock (and disable) it to allow this
2455 // navigation to succeed. The interstitial will stay visible until the
2456 // resulting DidNavigate.
2457 // TODO(clamy): See if this can be removed now that PlzNavigate has shipped.
2458 // See https://crbug.com/849250
2459 if (delegate_->GetInterstitialPage()) {
2460 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
2461 ->CancelForNavigation();
2462 }
2463
2464 // This call does not support re-entrancy. See http://crbug.com/347742.
2465 CHECK(!in_navigate_to_pending_entry_);
2466 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:302467
2468 // Send all the same document frame loads before the different document loads.
clamy3cb9bea92018-07-10 12:42:022469 for (auto& item : same_document_loads) {
2470 FrameTreeNode* frame = item->frame_tree_node();
2471 frame->navigator()->Navigate(std::move(item), reload_type,
2472 pending_entry_->restore_type());
creis4e2ecb72015-06-20 00:46:302473 }
clamy3cb9bea92018-07-10 12:42:022474 for (auto& item : different_document_loads) {
2475 FrameTreeNode* frame = item->frame_tree_node();
2476 frame->navigator()->Navigate(std::move(item), reload_type,
2477 pending_entry_->restore_type());
creis4e2ecb72015-06-20 00:46:302478 }
clamy3cb9bea92018-07-10 12:42:022479
2480 in_navigate_to_pending_entry_ = false;
creis4e2ecb72015-06-20 00:46:302481}
2482
2483void NavigationControllerImpl::FindFramesToNavigate(
2484 FrameTreeNode* frame,
clamy3cb9bea92018-07-10 12:42:022485 ReloadType reload_type,
2486 std::vector<std::unique_ptr<NavigationRequest>>* same_document_loads,
2487 std::vector<std::unique_ptr<NavigationRequest>>* different_document_loads) {
creis4e2ecb72015-06-20 00:46:302488 DCHECK(pending_entry_);
2489 DCHECK_GE(last_committed_entry_index_, 0);
2490 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:272491 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
2492 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:302493 FrameNavigationEntry* old_item =
2494 GetLastCommittedEntry()->GetFrameEntry(frame);
2495 if (!new_item)
2496 return;
2497
2498 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:562499 // sequence number in the same SiteInstance. Newly restored items may not have
2500 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:302501 if (!old_item ||
2502 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:562503 (new_item->site_instance() != nullptr &&
2504 new_item->site_instance() != old_item->site_instance())) {
creis54131692016-08-12 18:32:252505 // Same document loads happen if the previous item has the same document
2506 // sequence number. Note that we should treat them as different document if
2507 // the destination RenderFrameHost (which is necessarily the current
2508 // RenderFrameHost for same document navigations) doesn't have a last
2509 // committed page. This case can happen for Ctrl+Back or after a renderer
2510 // crash.
creis4e2ecb72015-06-20 00:46:302511 if (old_item &&
2512 new_item->document_sequence_number() ==
creis54131692016-08-12 18:32:252513 old_item->document_sequence_number() &&
Avi Drissman2eb7a482017-11-30 04:36:312514 !frame->current_frame_host()->GetLastCommittedURL().is_empty()) {
clamy3cb9bea92018-07-10 12:42:022515 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422516 CreateNavigationRequestFromEntry(
Xida Chenf860d0c2019-01-07 18:43:522517 frame, *pending_entry_, new_item, reload_type,
clamy3cb9bea92018-07-10 12:42:022518 true /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422519 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022520 if (navigation_request) {
2521 // Only add the request if was properly created. It's possible for the
2522 // creation to fail in certain cases, e.g. when the URL is invalid.
2523 same_document_loads->push_back(std::move(navigation_request));
2524 }
avib48cb312016-05-05 21:35:002525
2526 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
2527 // should continue on and navigate all child frames which have also
2528 // changed. This bug is the cause of <https://crbug.com/542299>, which is
2529 // a NC_IN_PAGE_NAVIGATION renderer kill.
2530 //
2531 // However, this bug is a bandaid over a deeper and worse problem. Doing a
2532 // pushState immediately after loading a subframe is a race, one that no
2533 // web page author expects. If we fix this bug, many large websites break.
2534 // For example, see <https://crbug.com/598043> and the spec discussion at
2535 // <https://github.com/whatwg/html/issues/1191>.
2536 //
2537 // For now, we accept this bug, and hope to resolve the race in a
2538 // different way that will one day allow us to fix this.
2539 return;
creis4e2ecb72015-06-20 00:46:302540 } else {
clamy3cb9bea92018-07-10 12:42:022541 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422542 CreateNavigationRequestFromEntry(
Xida Chenf860d0c2019-01-07 18:43:522543 frame, *pending_entry_, new_item, reload_type,
clamy3cb9bea92018-07-10 12:42:022544 false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422545 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022546 if (navigation_request) {
2547 // Only add the request if was properly created. It's possible for the
2548 // creation to fail in certain cases, e.g. when the URL is invalid.
2549 different_document_loads->push_back(std::move(navigation_request));
2550 }
avib3b47ab2016-01-22 20:53:582551 // For a different document, the subframes will be destroyed, so there's
2552 // no need to consider them.
2553 return;
creis4e2ecb72015-06-20 00:46:302554 }
creis4e2ecb72015-06-20 00:46:302555 }
2556
2557 for (size_t i = 0; i < frame->child_count(); i++) {
clamy3cb9bea92018-07-10 12:42:022558 FindFramesToNavigate(frame->child_at(i), reload_type, same_document_loads,
creis4e2ecb72015-06-20 00:46:302559 different_document_loads);
2560 }
2561}
2562
clamy21718cc22018-06-13 13:34:242563void NavigationControllerImpl::NavigateWithoutEntry(
2564 const LoadURLParams& params) {
2565 // Find the appropriate FrameTreeNode.
2566 FrameTreeNode* node = nullptr;
2567 if (params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId ||
2568 !params.frame_name.empty()) {
2569 node = params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId
2570 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
2571 : delegate_->GetFrameTree()->FindByName(params.frame_name);
2572 }
2573
2574 // If no FrameTreeNode was specified, navigate the main frame.
2575 if (!node)
2576 node = delegate_->GetFrameTree()->root();
2577
Camille Lamy5193caa2018-10-12 11:59:422578 // Compute overrides to the LoadURLParams for |override_user_agent|,
2579 // |should_replace_current_entry| and |has_user_gesture| that will be used
2580 // both in the creation of the NavigationEntry and the NavigationRequest.
2581 // Ideally, the LoadURLParams themselves would be updated, but since they are
2582 // passed as a const reference, this is not possible.
2583 // TODO(clamy): When we only create a NavigationRequest, move this to
2584 // CreateNavigationRequestFromLoadURLParams.
2585 bool override_user_agent = ShouldOverrideUserAgent(params.override_user_agent,
2586 GetLastCommittedEntry());
2587
2588 // Don't allow an entry replacement if there is no entry to replace.
2589 // http://crbug.com/457149
2590 bool should_replace_current_entry =
2591 params.should_replace_current_entry && entries_.size();
2592
2593 // Always propagate `has_user_gesture` on Android but only when the request
2594 // was originated by the renderer on other platforms. This is merely for
2595 // backward compatibility as browser process user gestures create confusion in
2596 // many tests.
2597 bool has_user_gesture = false;
2598#if defined(OS_ANDROID)
2599 has_user_gesture = params.has_user_gesture;
2600#else
2601 if (params.is_renderer_initiated)
2602 has_user_gesture = params.has_user_gesture;
2603#endif
2604
clamy21718cc22018-06-13 13:34:242605 // Javascript URLs should not create NavigationEntries. All other navigations
2606 // do, including navigations to chrome renderer debug URLs.
2607 std::unique_ptr<NavigationEntryImpl> entry;
2608 if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
Camille Lamy5193caa2018-10-12 11:59:422609 entry = CreateNavigationEntryFromLoadParams(
2610 node, params, override_user_agent, should_replace_current_entry,
2611 has_user_gesture);
clamy21718cc22018-06-13 13:34:242612 DiscardPendingEntry(false);
2613 SetPendingEntry(std::move(entry));
2614 }
2615
2616 // Renderer-debug URLs are sent to the renderer process immediately for
2617 // processing and don't need to create a NavigationRequest.
2618 // Note: this includes navigations to JavaScript URLs, which are considered
2619 // renderer-debug URLs.
2620 // Note: we intentionally leave the pending entry in place for renderer debug
2621 // URLs, unlike the cases below where we clear it if the navigation doesn't
2622 // proceed.
2623 if (IsRendererDebugURL(params.url)) {
2624 HandleRendererDebugURL(node, params.url);
2625 return;
2626 }
2627
2628 // Convert navigations to the current URL to a reload.
2629 // TODO(clamy): We should be using FrameTreeNode::IsMainFrame here instead of
2630 // relying on the frame tree node id from LoadURLParams. Unfortunately,
2631 // DevTools sometimes issues navigations to main frames that they do not
2632 // expect to see treated as reload, and it only works because they pass a
2633 // FrameTreeNode id in their LoadURLParams. Change this once they no longer do
2634 // that. See https://crbug.com/850926.
2635 ReloadType reload_type = ReloadType::NONE;
2636 if (ShouldTreatNavigationAsReload(
2637 params.url, pending_entry_->GetVirtualURL(),
2638 params.base_url_for_data_url, params.transition_type,
2639 params.frame_tree_node_id == RenderFrameHost::kNoFrameTreeNodeId,
2640 params.load_type ==
2641 NavigationController::LOAD_TYPE_HTTP_POST /* is_post */,
2642 false /* is_reload */, false /* is_navigation_to_existing_entry */,
2643 transient_entry_index_ != -1 /* has_interstitial */,
2644 GetLastCommittedEntry())) {
2645 reload_type = ReloadType::NORMAL;
2646 }
2647
2648 // navigation_ui_data should only be present for main frame navigations.
2649 DCHECK(node->IsMainFrame() || !params.navigation_ui_data);
2650
clamy21718cc22018-06-13 13:34:242651 DCHECK(pending_entry_);
Camille Lamy5193caa2018-10-12 11:59:422652 std::unique_ptr<NavigationRequest> request =
2653 CreateNavigationRequestFromLoadParams(
2654 node, params, override_user_agent, should_replace_current_entry,
Charlie Harrison8c113a32019-01-07 16:08:292655 has_user_gesture, NavigationDownloadPolicy::kAllow, reload_type,
Xida Chenf860d0c2019-01-07 18:43:522656 *pending_entry_, pending_entry_->GetFrameEntry(node));
clamy21718cc22018-06-13 13:34:242657
2658 // If the navigation couldn't start, return immediately and discard the
2659 // pending NavigationEntry.
2660 if (!request) {
2661 DiscardPendingEntry(false);
2662 return;
2663 }
2664
Camille Lamy5193caa2018-10-12 11:59:422665#if DCHECK_IS_ON()
2666 // Safety check that NavigationRequest and NavigationEntry match.
2667 ValidateRequestMatchesEntry(request.get(), pending_entry_);
2668#endif
2669
clamy21718cc22018-06-13 13:34:242670 // If an interstitial page is showing, the previous renderer is blocked and
2671 // cannot make new requests. Unblock (and disable) it to allow this
2672 // navigation to succeed. The interstitial will stay visible until the
2673 // resulting DidNavigate.
2674 if (delegate_->GetInterstitialPage()) {
2675 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
2676 ->CancelForNavigation();
2677 }
2678
2679 // This call does not support re-entrancy. See http://crbug.com/347742.
2680 CHECK(!in_navigate_to_pending_entry_);
2681 in_navigate_to_pending_entry_ = true;
2682
2683 node->navigator()->Navigate(std::move(request), reload_type,
2684 RestoreType::NONE);
2685
2686 in_navigate_to_pending_entry_ = false;
2687}
2688
clamyea99ea12018-05-28 13:54:232689void NavigationControllerImpl::HandleRendererDebugURL(
2690 FrameTreeNode* frame_tree_node,
2691 const GURL& url) {
2692 if (!frame_tree_node->current_frame_host()->IsRenderFrameLive()) {
clamy21718cc22018-06-13 13:34:242693 // Any renderer-side debug URLs or javascript: URLs should be ignored if
2694 // the renderer process is not live, unless it is the initial navigation
2695 // of the tab.
clamyea99ea12018-05-28 13:54:232696 if (!IsInitialNavigation()) {
2697 DiscardNonCommittedEntries();
2698 return;
2699 }
2700 frame_tree_node->render_manager()->InitializeRenderFrameIfNecessary(
2701 frame_tree_node->current_frame_host());
2702 }
2703 frame_tree_node->current_frame_host()->HandleRendererDebugURL(url);
2704}
2705
clamy21718cc22018-06-13 13:34:242706std::unique_ptr<NavigationEntryImpl>
2707NavigationControllerImpl::CreateNavigationEntryFromLoadParams(
2708 FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:422709 const LoadURLParams& params,
2710 bool override_user_agent,
2711 bool should_replace_current_entry,
2712 bool has_user_gesture) {
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:392713 // Browser initiated navigations might not have a blob_url_loader_factory set
2714 // in params even if the navigation is to a blob URL. If that happens, lookup
2715 // the correct url loader factory to use here.
2716 auto blob_url_loader_factory = params.blob_url_loader_factory;
2717 if (!blob_url_loader_factory && blink::BlobUtils::MojoBlobURLsEnabled() &&
2718 params.url.SchemeIsBlob()) {
2719 blob_url_loader_factory = ChromeBlobStorageContext::URLLoaderFactoryForUrl(
2720 GetBrowserContext(), params.url);
2721 }
2722
clamy21718cc22018-06-13 13:34:242723 std::unique_ptr<NavigationEntryImpl> entry;
2724
2725 // For subframes, create a pending entry with a corresponding frame entry.
2726 if (!node->IsMainFrame()) {
2727 DCHECK(GetLastCommittedEntry());
2728
2729 // Create an identical NavigationEntry with a new FrameNavigationEntry for
2730 // the target subframe.
2731 entry = GetLastCommittedEntry()->Clone();
Nasko Oskov18006bc2018-12-06 02:53:582732
2733 // TODO(nasko): Investigate what is the proper origin to supply here
2734 // or whether a valid one is required.
2735 url::Origin origin;
2736
clamy21718cc22018-06-13 13:34:242737 entry->AddOrUpdateFrameEntry(
2738 node, -1, -1, nullptr,
2739 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
Nasko Oskov18006bc2018-12-06 02:53:582740 params.url, origin, params.referrer, params.redirect_chain, PageState(),
2741 "GET", -1, blob_url_loader_factory);
clamy21718cc22018-06-13 13:34:242742 } else {
2743 // Otherwise, create a pending entry for the main frame.
2744
2745 // extra_headers in params are \n separated; navigation entries want \r\n.
2746 std::string extra_headers_crlf;
2747 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
2748 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2749 params.url, params.referrer, params.transition_type,
2750 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:392751 blob_url_loader_factory));
clamy21718cc22018-06-13 13:34:242752 entry->set_source_site_instance(
2753 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
2754 entry->SetRedirectChain(params.redirect_chain);
2755 }
2756
2757 // Set the FTN ID (only used in non-site-per-process, for tests).
2758 entry->set_frame_tree_node_id(node->frame_tree_node_id());
Camille Lamy5193caa2018-10-12 11:59:422759 entry->set_should_replace_entry(should_replace_current_entry);
clamy21718cc22018-06-13 13:34:242760 entry->set_should_clear_history_list(params.should_clear_history_list);
Camille Lamy5193caa2018-10-12 11:59:422761 entry->SetIsOverridingUserAgent(override_user_agent);
2762 entry->set_has_user_gesture(has_user_gesture);
clamy21718cc22018-06-13 13:34:242763
clamy21718cc22018-06-13 13:34:242764 switch (params.load_type) {
2765 case LOAD_TYPE_DEFAULT:
2766 break;
2767 case LOAD_TYPE_HTTP_POST:
2768 entry->SetHasPostData(true);
2769 entry->SetPostData(params.post_data);
2770 break;
2771 case LOAD_TYPE_DATA:
2772 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
2773 entry->SetVirtualURL(params.virtual_url_for_data_url);
2774#if defined(OS_ANDROID)
2775 entry->SetDataURLAsString(params.data_url_as_string);
2776#endif
2777 entry->SetCanLoadLocalResources(params.can_load_local_resources);
2778 break;
2779 default:
2780 NOTREACHED();
2781 break;
2782 }
2783
2784 // TODO(clamy): NavigationEntry is meant for information that will be kept
2785 // after the navigation ended and therefore is not appropriate for
2786 // started_from_context_menu. Move started_from_context_menu to
2787 // NavigationUIData.
2788 entry->set_started_from_context_menu(params.started_from_context_menu);
2789
2790 return entry;
2791}
2792
clamyea99ea12018-05-28 13:54:232793std::unique_ptr<NavigationRequest>
Camille Lamy5193caa2018-10-12 11:59:422794NavigationControllerImpl::CreateNavigationRequestFromLoadParams(
2795 FrameTreeNode* node,
2796 const LoadURLParams& params,
2797 bool override_user_agent,
2798 bool should_replace_current_entry,
2799 bool has_user_gesture,
Charlie Harrison8c113a32019-01-07 16:08:292800 NavigationDownloadPolicy download_policy,
Camille Lamy5193caa2018-10-12 11:59:422801 ReloadType reload_type,
Xida Chenf860d0c2019-01-07 18:43:522802 const NavigationEntryImpl& entry,
Camille Lamy5193caa2018-10-12 11:59:422803 FrameNavigationEntry* frame_entry) {
Xida Chenf860d0c2019-01-07 18:43:522804 DCHECK_EQ(-1, GetIndexOfEntry(&entry));
Camille Lamyb9ed3c52018-11-19 15:34:282805 DCHECK(frame_entry);
Nasko Oskov93e7c55c2018-12-19 01:59:292806 // TODO(nasko): Enforce this check once all code is updated to supply
2807 // initiator_origin for renderer initiated navigations.
2808 // DCHECK(!params.is_renderer_initiated ||
2809 // params.initiator_origin.has_value());
Camille Lamyff7c4822018-11-07 15:42:512810
Camille Lamy5193caa2018-10-12 11:59:422811 GURL url_to_load;
2812 GURL virtual_url;
Camille Lamy2baa8022018-10-19 16:43:172813 // For main frames, rewrite the URL if necessary and compute the virtual URL
2814 // that should be shown in the address bar.
2815 if (node->IsMainFrame()) {
2816 bool reverse_on_redirect = false;
2817 RewriteUrlForNavigation(params.url, browser_context_, &url_to_load,
2818 &virtual_url, &reverse_on_redirect);
Camille Lamy5193caa2018-10-12 11:59:422819
Camille Lamy2baa8022018-10-19 16:43:172820 // For DATA loads, override the virtual URL.
2821 if (params.load_type == LOAD_TYPE_DATA)
2822 virtual_url = params.virtual_url_for_data_url;
Camille Lamy5193caa2018-10-12 11:59:422823
Camille Lamy2baa8022018-10-19 16:43:172824 if (virtual_url.is_empty())
2825 virtual_url = url_to_load;
2826
Xida Chenf860d0c2019-01-07 18:43:522827 CHECK(virtual_url == entry.GetVirtualURL());
Camille Lamyb9ed3c52018-11-19 15:34:282828
2829 // This is a DCHECK and not a CHECK as URL rewrite has non-deterministic
2830 // behavior in the field: it is possible for two calls to
2831 // RewriteUrlForNavigation to return different results, leading to a
2832 // different URL in the NavigationRequest and FrameEntry. This will be fixed
2833 // once we remove the pending NavigationEntry, as we'll only make one call
2834 // to RewriteUrlForNavigation.
2835 DCHECK_EQ(url_to_load, frame_entry->url());
2836
Camille Lamy2baa8022018-10-19 16:43:172837 // TODO(clamy): In order to remove the pending NavigationEntry,
2838 // |virtual_url| and |reverse_on_redirect| should be stored in the
2839 // NavigationRequest.
2840 } else {
2841 url_to_load = params.url;
2842 virtual_url = params.url;
Camille Lamyf664f7622019-01-07 19:28:242843 CHECK(!frame_entry || url_to_load == frame_entry->url());
Camille Lamy2baa8022018-10-19 16:43:172844 }
Camille Lamy5193caa2018-10-12 11:59:422845
Ehsan Karamaddd9a4142018-12-04 20:38:202846 if (auto* rfh = node->current_frame_host()) {
2847 if (rfh->is_attaching_inner_delegate()) {
2848 // Avoid starting any new navigations since this node is now preparing for
2849 // attaching an inner delegate.
2850 return nullptr;
2851 }
2852 }
Camille Lamy5193caa2018-10-12 11:59:422853
Camille Lamy5193caa2018-10-12 11:59:422854 if (!IsValidURLForNavigation(node->IsMainFrame(), virtual_url, url_to_load))
2855 return nullptr;
2856
2857 // Determine if Previews should be used for the navigation.
2858 PreviewsState previews_state = PREVIEWS_UNSPECIFIED;
2859 if (!node->IsMainFrame()) {
2860 // For subframes, use the state of the top-level frame.
2861 previews_state = node->frame_tree()
2862 ->root()
2863 ->current_frame_host()
2864 ->last_navigation_previews_state();
2865 }
2866
Camille Lamy5193caa2018-10-12 11:59:422867 // This will be used to set the Navigation Timing API navigationStart
2868 // parameter for browser navigations in new tabs (intents, tabs opened through
2869 // "Open link in new tab"). If the navigation must wait on the current
2870 // RenderFrameHost to execute its BeforeUnload event, the navigation start
2871 // will be updated when the BeforeUnload ack is received.
2872 base::TimeTicks navigation_start = base::TimeTicks::Now();
2873
2874 FrameMsg_Navigate_Type::Value navigation_type =
2875 GetNavigationType(node->current_url(), // old_url
2876 url_to_load, // new_url
2877 reload_type, // reload_type
2878 entry, // entry
2879 *frame_entry, // frame_entry
2880 false); // is_same_document_history_load
2881
2882 // Create the NavigationParams based on |params|.
2883
2884 bool is_view_source_mode = virtual_url.SchemeIs(kViewSourceScheme);
Charlie Harrison8c113a32019-01-07 16:08:292885
2886 // Update |download_policy| if the virtual URL is view-source. Why do this
2887 // now? Possibly the URL could be rewritten to a view-source via some URL
2888 // handler.
2889 if (is_view_source_mode)
2890 download_policy = NavigationDownloadPolicy::kDisallowViewSource;
2891
Camille Lamy5193caa2018-10-12 11:59:422892 const GURL& history_url_for_data_url =
2893 params.base_url_for_data_url.is_empty() ? GURL() : virtual_url;
2894 CommonNavigationParams common_params(
Nasko Oskov93e7c55c2018-12-19 01:59:292895 url_to_load, params.initiator_origin, params.referrer,
2896 params.transition_type, navigation_type, download_policy,
2897 should_replace_current_entry, params.base_url_for_data_url,
2898 history_url_for_data_url, previews_state, navigation_start,
Camille Lamy5193caa2018-10-12 11:59:422899 params.load_type == LOAD_TYPE_HTTP_POST ? "POST" : "GET",
2900 params.post_data, base::Optional<SourceLocation>(),
2901 params.started_from_context_menu, has_user_gesture, InitiatorCSPInfo(),
Anthony Vallee-Dubois93a11672018-11-21 16:44:422902 params.href_translate, params.input_start);
Camille Lamy5193caa2018-10-12 11:59:422903
Nasko Oskovc36327d2019-01-03 23:23:042904 CommitNavigationParams commit_params(
Camille Lamy5193caa2018-10-12 11:59:422905 override_user_agent, params.redirect_chain, common_params.url,
2906 common_params.method, params.can_load_local_resources,
Xida Chenf860d0c2019-01-07 18:43:522907 frame_entry->page_state(), entry.GetUniqueID(),
Camille Lamy5193caa2018-10-12 11:59:422908 false /* is_history_navigation_in_new_child */,
Xida Chenf860d0c2019-01-07 18:43:522909 entry.GetSubframeUniqueNames(node), true /* intended_as_new_entry */,
Camille Lamy5193caa2018-10-12 11:59:422910 -1 /* pending_history_list_offset */,
2911 params.should_clear_history_list ? -1 : GetLastCommittedEntryIndex(),
2912 params.should_clear_history_list ? 0 : GetEntryCount(),
2913 is_view_source_mode, params.should_clear_history_list);
2914#if defined(OS_ANDROID)
2915 if (ValidateDataURLAsString(params.data_url_as_string)) {
Nasko Oskovc36327d2019-01-03 23:23:042916 commit_params.data_url_as_string = params.data_url_as_string->data();
Camille Lamy5193caa2018-10-12 11:59:422917 }
2918#endif
2919
Nasko Oskovc36327d2019-01-03 23:23:042920 commit_params.was_activated = params.was_activated;
Camille Lamy5193caa2018-10-12 11:59:422921
2922 // A form submission may happen here if the navigation is a renderer-initiated
2923 // form submission that took the OpenURL path.
2924 scoped_refptr<network::ResourceRequestBody> request_body = params.post_data;
2925
2926 // extra_headers in params are \n separated; NavigationRequests want \r\n.
2927 std::string extra_headers_crlf;
2928 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
2929 return NavigationRequest::CreateBrowserInitiated(
Nasko Oskovc36327d2019-01-03 23:23:042930 node, common_params, commit_params, !params.is_renderer_initiated,
Camille Lamy5193caa2018-10-12 11:59:422931 extra_headers_crlf, *frame_entry, entry, request_body,
2932 params.navigation_ui_data ? params.navigation_ui_data->Clone() : nullptr);
2933}
2934
2935std::unique_ptr<NavigationRequest>
2936NavigationControllerImpl::CreateNavigationRequestFromEntry(
clamyea99ea12018-05-28 13:54:232937 FrameTreeNode* frame_tree_node,
Xida Chenf860d0c2019-01-07 18:43:522938 const NavigationEntryImpl& entry,
clamyea99ea12018-05-28 13:54:232939 FrameNavigationEntry* frame_entry,
2940 ReloadType reload_type,
2941 bool is_same_document_history_load,
Camille Lamy5193caa2018-10-12 11:59:422942 bool is_history_navigation_in_new_child) {
clamyea99ea12018-05-28 13:54:232943 GURL dest_url = frame_entry->url();
2944 Referrer dest_referrer = frame_entry->referrer();
Ryan Sturmc4da1992018-07-17 16:59:012945 if (reload_type == ReloadType::ORIGINAL_REQUEST_URL &&
Xida Chenf860d0c2019-01-07 18:43:522946 entry.GetOriginalRequestURL().is_valid() && !entry.GetHasPostData()) {
clamyea99ea12018-05-28 13:54:232947 // We may have been redirected when navigating to the current URL.
2948 // Use the URL the user originally intended to visit as signaled by the
2949 // ReloadType, if it's valid and if a POST wasn't involved; the latter
Ryan Sturmc4da1992018-07-17 16:59:012950 // case avoids issues with sending data to the wrong page.
Xida Chenf860d0c2019-01-07 18:43:522951 dest_url = entry.GetOriginalRequestURL();
clamyea99ea12018-05-28 13:54:232952 dest_referrer = Referrer();
2953 }
2954
Ehsan Karamaddd9a4142018-12-04 20:38:202955 if (auto* rfh = frame_tree_node->current_frame_host()) {
2956 if (rfh->is_attaching_inner_delegate()) {
2957 // Avoid starting any new navigations since this node is now preparing for
2958 // attaching an inner delegate.
2959 return nullptr;
2960 }
2961 }
2962
Camille Lamy5193caa2018-10-12 11:59:422963 if (!IsValidURLForNavigation(frame_tree_node->IsMainFrame(),
Xida Chenf860d0c2019-01-07 18:43:522964 entry.GetVirtualURL(), dest_url)) {
clamyea99ea12018-05-28 13:54:232965 return nullptr;
2966 }
2967
2968 // Determine if Previews should be used for the navigation.
2969 PreviewsState previews_state = PREVIEWS_UNSPECIFIED;
2970 if (!frame_tree_node->IsMainFrame()) {
2971 // For subframes, use the state of the top-level frame.
2972 previews_state = frame_tree_node->frame_tree()
2973 ->root()
2974 ->current_frame_host()
2975 ->last_navigation_previews_state();
clamyea99ea12018-05-28 13:54:232976 }
2977
clamyea99ea12018-05-28 13:54:232978 // This will be used to set the Navigation Timing API navigationStart
2979 // parameter for browser navigations in new tabs (intents, tabs opened through
2980 // "Open link in new tab"). If the navigation must wait on the current
2981 // RenderFrameHost to execute its BeforeUnload event, the navigation start
2982 // will be updated when the BeforeUnload ack is received.
2983 base::TimeTicks navigation_start = base::TimeTicks::Now();
clamyea99ea12018-05-28 13:54:232984
2985 FrameMsg_Navigate_Type::Value navigation_type = GetNavigationType(
2986 frame_tree_node->current_url(), // old_url
2987 dest_url, // new_url
2988 reload_type, // reload_type
2989 entry, // entry
2990 *frame_entry, // frame_entry
2991 is_same_document_history_load); // is_same_document_history_load
Camille Lamy5193caa2018-10-12 11:59:422992
2993 // A form submission may happen here if the navigation is a
2994 // back/forward/reload navigation that does a form resubmission.
2995 scoped_refptr<network::ResourceRequestBody> request_body;
2996 std::string post_content_type;
2997 if (frame_entry->method() == "POST") {
2998 request_body = frame_entry->GetPostData(&post_content_type);
2999 // Might have a LF at end.
3000 post_content_type =
3001 base::TrimWhitespaceASCII(post_content_type, base::TRIM_ALL)
3002 .as_string();
3003 }
3004
3005 // Create the NavigationParams based on |entry| and |frame_entry|.
Xida Chenf860d0c2019-01-07 18:43:523006 CommonNavigationParams common_params = entry.ConstructCommonNavigationParams(
Camille Lamy5193caa2018-10-12 11:59:423007 *frame_entry, request_body, dest_url, dest_referrer, navigation_type,
3008 previews_state, navigation_start, base::TimeTicks() /* input_start */);
3009
3010 // TODO(clamy): |intended_as_new_entry| below should always be false once
3011 // Reload no longer leads to this being called for a pending NavigationEntry
3012 // of index -1.
Xida Chenf860d0c2019-01-07 18:43:523013 CommitNavigationParams commit_params = entry.ConstructCommitNavigationParams(
Nasko Oskovc36327d2019-01-03 23:23:043014 *frame_entry, common_params.url, common_params.method,
3015 is_history_navigation_in_new_child,
Xida Chenf860d0c2019-01-07 18:43:523016 entry.GetSubframeUniqueNames(frame_tree_node),
Nasko Oskovc36327d2019-01-03 23:23:043017 GetPendingEntryIndex() == -1 /* intended_as_new_entry */,
Xida Chenf860d0c2019-01-07 18:43:523018 GetIndexOfEntry(&entry), GetLastCommittedEntryIndex(), GetEntryCount());
Nasko Oskovc36327d2019-01-03 23:23:043019 commit_params.post_content_type = post_content_type;
Camille Lamy5193caa2018-10-12 11:59:423020
clamyea99ea12018-05-28 13:54:233021 return NavigationRequest::CreateBrowserInitiated(
Nasko Oskovc36327d2019-01-03 23:23:043022 frame_tree_node, common_params, commit_params,
Xida Chenf860d0c2019-01-07 18:43:523023 !entry.is_renderer_initiated(), entry.extra_headers(), *frame_entry,
Camille Lamy5193caa2018-10-12 11:59:423024 entry, request_body, nullptr /* navigation_ui_data */);
clamyea99ea12018-05-28 13:54:233025}
3026
[email protected]d202a7c2012-01-04 07:53:473027void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:213028 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:273029 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:403030
[email protected]2db9bd72012-04-13 20:20:563031 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:403032 // location bar will have up-to-date information about the security style
3033 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:133034 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:403035
[email protected]7f924832014-08-09 05:57:223036 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:573037 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:463038
[email protected]b0f724c2013-09-05 04:21:133039 // TODO(avi): Remove. http://crbug.com/170921
3040 NotificationDetails notification_details =
3041 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:213042 NotificationService::current()->Notify(
3043 NOTIFICATION_NAV_ENTRY_COMMITTED,
3044 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:403045 notification_details);
initial.commit09911bf2008-07-26 23:55:293046}
3047
initial.commit09911bf2008-07-26 23:55:293048// static
[email protected]d202a7c2012-01-04 07:53:473049size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:233050 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
3051 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:213052 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:233053}
3054
[email protected]d202a7c2012-01-04 07:53:473055void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:223056 if (is_active && needs_reload_)
3057 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:293058}
3059
[email protected]d202a7c2012-01-04 07:53:473060void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:293061 if (!needs_reload_)
3062 return;
3063
Bo Liucdfa4b12018-11-06 00:21:443064 UMA_HISTOGRAM_ENUMERATION("Navigation.LoadIfNecessaryType",
3065 needs_reload_type_);
3066
initial.commit09911bf2008-07-26 23:55:293067 // Calling Reload() results in ignoring state, and not loading.
3068 // Explicitly use NavigateToPendingEntry so that the renderer uses the
3069 // cached state.
avicc872d7242015-08-19 21:26:343070 if (pending_entry_) {
clamy3cb9bea92018-07-10 12:42:023071 NavigateToExistingPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:343072 } else if (last_committed_entry_index_ != -1) {
arthursonzogni5c4c202d2017-04-25 23:41:273073 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:343074 pending_entry_index_ = last_committed_entry_index_;
clamy3cb9bea92018-07-10 12:42:023075 NavigateToExistingPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:343076 } else {
3077 // If there is something to reload, the successful reload will clear the
3078 // |needs_reload_| flag. Otherwise, just do it here.
3079 needs_reload_ = false;
3080 }
initial.commit09911bf2008-07-26 23:55:293081}
3082
Xida Chenf860d0c2019-01-07 18:43:523083void NavigationControllerImpl::NotifyEntryChanged(
3084 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:213085 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:093086 det.changed_entry = entry;
avi47179332015-05-20 21:01:113087 det.index = GetIndexOfEntry(
3088 NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:143089 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:293090}
3091
[email protected]d202a7c2012-01-04 07:53:473092void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:363093 RestoreType type) {
[email protected]a26023822011-12-29 00:23:553094 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:363095 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:293096
initial.commit09911bf2008-07-26 23:55:293097 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:293098}
[email protected]765b35502008-08-21 00:51:203099
[email protected]d202a7c2012-01-04 07:53:473100void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:453101 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:483102 DiscardTransientEntry();
3103}
3104
[email protected]d202a7c2012-01-04 07:53:473105void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:473106 if (transient_entry_index_ == -1)
3107 return;
[email protected]a0e69262009-06-03 19:08:483108 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:183109 if (last_committed_entry_index_ > transient_entry_index_)
3110 last_committed_entry_index_--;
arthursonzogni5c4c202d2017-04-25 23:41:273111 if (pending_entry_index_ > transient_entry_index_)
3112 pending_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:473113 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:203114}
3115
avi7c6f35e2015-05-08 17:52:383116int NavigationControllerImpl::GetEntryIndexWithUniqueID(
3117 int nav_entry_id) const {
3118 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
3119 if (entries_[i]->GetUniqueID() == nav_entry_id)
3120 return i;
3121 }
3122 return -1;
3123}
3124
Xida Chenf860d0c2019-01-07 18:43:523125NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:473126 if (transient_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:283127 return nullptr;
avif16f85a72015-11-13 18:25:033128 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:473129}
[email protected]e1cd5452010-08-26 18:03:253130
avi25764702015-06-23 15:43:373131void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:573132 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:213133 // Discard any current transient entry, we can only have one at a time.
3134 int index = 0;
3135 if (last_committed_entry_index_ != -1)
3136 index = last_committed_entry_index_ + 1;
3137 DiscardTransientEntry();
avi25764702015-06-23 15:43:373138 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:363139 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
arthursonzogni5c4c202d2017-04-25 23:41:273140 if (pending_entry_index_ >= index)
3141 pending_entry_index_++;
[email protected]0b684262013-02-20 02:18:213142 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:223143 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:213144}
3145
[email protected]d202a7c2012-01-04 07:53:473146void NavigationControllerImpl::InsertEntriesFrom(
Xida Chenf860d0c2019-01-07 18:43:523147 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:253148 int max_index) {
Xida Chenf860d0c2019-01-07 18:43:523149 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:253150 size_t insert_index = 0;
3151 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:353152 // When cloning a tab, copy all entries except interstitial pages.
Xida Chenf860d0c2019-01-07 18:43:523153 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:353154 // TODO(creis): Once we start sharing FrameNavigationEntries between
3155 // NavigationEntries, it will not be safe to share them with another tab.
3156 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:253157 entries_.insert(entries_.begin() + insert_index++,
Xida Chenf860d0c2019-01-07 18:43:523158 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:253159 }
3160 }
arthursonzogni5c4c202d2017-04-25 23:41:273161 DCHECK(pending_entry_index_ == -1 ||
3162 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:253163}
[email protected]c5b88d82012-10-06 17:03:333164
3165void NavigationControllerImpl::SetGetTimestampCallbackForTest(
3166 const base::Callback<base::Time()>& get_timestamp_callback) {
3167 get_timestamp_callback_ = get_timestamp_callback;
3168}
[email protected]8ff00d72012-10-23 19:12:213169
Arthur Sonzogni620cec62018-12-13 13:08:573170// BackForwardCache:
3171void NavigationControllerImpl::CommitRestoreFromBackForwardCache() {
3172 // TODO(arthursonzogni): Extract the missing parts from RendererDidNavigate()
3173 // and reuse them.
3174 LoadCommittedDetails details;
3175 details.previous_entry_index = GetCurrentEntryIndex();
3176 details.entry = pending_entry_;
3177 details.type = NAVIGATION_TYPE_EXISTING_PAGE;
3178 details.is_main_frame = true;
3179 details.http_status_code = net::HTTP_OK;
3180 details.did_replace_entry = false;
3181 details.is_same_document = false;
3182
3183 last_committed_entry_index_ = pending_entry_index_;
3184 DiscardPendingEntry(false);
3185
3186 // Notify content/ embedder of the history update.
3187 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
3188 delegate_->NotifyNavigationEntryCommitted(details);
3189}
3190
[email protected]8ff00d72012-10-23 19:12:213191} // namespace content