blob: 4010bfbca2d16ad2ac75cc402a4f816442f4d2e9 [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.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57133bool ShouldKeepOverride(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,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57140 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.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57162bool ShouldTreatNavigationAsReload(const GURL& url,
163 const GURL& virtual_url,
164 const GURL& base_url_for_data_url,
165 ui::PageTransition transition_type,
166 bool is_main_frame,
167 bool is_post,
168 bool is_reload,
169 bool is_navigation_to_existing_entry,
170 bool has_interstitial,
171 NavigationEntryImpl* last_committed_entry) {
clamy0a656e42018-02-06 18:18:28172 // Don't convert when an interstitial is showing.
173 if (has_interstitial)
174 return false;
175
176 // Only convert main frame navigations to a new entry.
177 if (!is_main_frame || is_reload || is_navigation_to_existing_entry)
178 return false;
179
180 // Only convert to reload if at least one navigation committed.
181 if (!last_committed_entry)
ananta3bdd8ae2016-12-22 17:11:55182 return false;
183
arthursonzogni7a8243682017-12-14 16:41:42184 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28185 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42186 return false;
187
ananta3bdd8ae2016-12-22 17:11:55188 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
189 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
190 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28191 bool transition_type_can_be_converted = false;
192 if (ui::PageTransitionCoreTypeIs(transition_type,
193 ui::PAGE_TRANSITION_RELOAD) &&
194 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
195 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55196 }
clamy0a656e42018-02-06 18:18:28197 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55198 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28199 transition_type_can_be_converted = true;
200 }
201 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
202 transition_type_can_be_converted = true;
203 if (!transition_type_can_be_converted)
204 return false;
205
206 // This check is required for cases like view-source:, etc. Here the URL of
207 // the navigation entry would contain the url of the page, while the virtual
208 // URL contains the full URL including the view-source prefix.
209 if (virtual_url != last_committed_entry->GetVirtualURL())
210 return false;
211
212 // Check that the URL match.
213 if (url != last_committed_entry->GetURL())
214 return false;
215
216 // This check is required for Android WebView loadDataWithBaseURL. Apps
217 // can pass in anything in the base URL and we need to ensure that these
218 // match before classifying it as a reload.
219 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
220 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
221 return false;
ananta3bdd8ae2016-12-22 17:11:55222 }
223
clamy0a656e42018-02-06 18:18:28224 // Skip entries with SSL errors.
225 if (last_committed_entry->ssl_error())
226 return false;
227
228 // Don't convert to a reload when the last navigation was a POST or the new
229 // navigation is a POST.
230 if (last_committed_entry->GetHasPostData() || is_post)
231 return false;
232
233 return true;
ananta3bdd8ae2016-12-22 17:11:55234}
235
Camille Lamy5193caa2018-10-12 11:59:42236bool IsValidURLForNavigation(bool is_main_frame,
237 const GURL& virtual_url,
238 const GURL& dest_url) {
239 // Don't attempt to navigate if the virtual URL is non-empty and invalid.
240 if (is_main_frame && !virtual_url.is_valid() && !virtual_url.is_empty()) {
241 LOG(WARNING) << "Refusing to load for invalid virtual URL: "
242 << virtual_url.possibly_invalid_spec();
243 return false;
244 }
245
246 // Don't attempt to navigate to non-empty invalid URLs.
247 if (!dest_url.is_valid() && !dest_url.is_empty()) {
248 LOG(WARNING) << "Refusing to load invalid URL: "
249 << dest_url.possibly_invalid_spec();
250 return false;
251 }
252
253 // The renderer will reject IPC messages with URLs longer than
254 // this limit, so don't attempt to navigate with a longer URL.
255 if (dest_url.spec().size() > url::kMaxURLChars) {
256 LOG(WARNING) << "Refusing to load URL as it exceeds " << url::kMaxURLChars
257 << " characters.";
258 return false;
259 }
260
261 return true;
262}
263
Mikel Astizba9cf2fd2017-12-17 10:38:10264// See replaced_navigation_entry_data.h for details: this information is meant
265// to ensure |*output_entry| keeps track of its original URL (landing page in
266// case of server redirects) as it gets replaced (e.g. history.replaceState()),
267// without overwriting it later, for main frames.
268void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57269 NavigationEntryImpl* replaced_entry,
Mikel Astizba9cf2fd2017-12-17 10:38:10270 NavigationEntryImpl* output_entry) {
271 if (output_entry->GetReplacedEntryData().has_value())
272 return;
273
274 ReplacedNavigationEntryData data;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57275 data.first_committed_url = replaced_entry->GetURL();
276 data.first_timestamp = replaced_entry->GetTimestamp();
277 data.first_transition_type = replaced_entry->GetTransitionType();
Charlie Reisb55438f2019-01-08 01:54:29278 output_entry->set_replaced_entry_data(data);
Mikel Astizba9cf2fd2017-12-17 10:38:10279}
280
clamyea99ea12018-05-28 13:54:23281FrameMsg_Navigate_Type::Value GetNavigationType(
282 const GURL& old_url,
283 const GURL& new_url,
284 ReloadType reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57285 NavigationEntryImpl* entry,
clamyea99ea12018-05-28 13:54:23286 const FrameNavigationEntry& frame_entry,
287 bool is_same_document_history_load) {
288 // Reload navigations
289 switch (reload_type) {
290 case ReloadType::NORMAL:
291 return FrameMsg_Navigate_Type::RELOAD;
292 case ReloadType::BYPASSING_CACHE:
clamyea99ea12018-05-28 13:54:23293 return FrameMsg_Navigate_Type::RELOAD_BYPASSING_CACHE;
294 case ReloadType::ORIGINAL_REQUEST_URL:
295 return FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL;
296 case ReloadType::NONE:
297 break; // Fall through to rest of function.
298 }
299
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57300 if (entry->restore_type() == RestoreType::LAST_SESSION_EXITED_CLEANLY) {
301 if (entry->GetHasPostData())
clamyea99ea12018-05-28 13:54:23302 return FrameMsg_Navigate_Type::RESTORE_WITH_POST;
303 else
304 return FrameMsg_Navigate_Type::RESTORE;
305 }
306
307 // History navigations.
308 if (frame_entry.page_state().IsValid()) {
309 if (is_same_document_history_load)
310 return FrameMsg_Navigate_Type::HISTORY_SAME_DOCUMENT;
311 else
312 return FrameMsg_Navigate_Type::HISTORY_DIFFERENT_DOCUMENT;
313 }
314 DCHECK(!is_same_document_history_load);
315
316 // A same-document fragment-navigation happens when the only part of the url
317 // that is modified is after the '#' character.
318 //
319 // When modifying this condition, please take a look at:
320 // FrameLoader::shouldPerformFragmentNavigation.
321 //
322 // Note: this check is only valid for navigations that are not history
323 // navigations. For instance, if the history is: 'A#bar' -> 'B' -> 'A#foo', a
324 // history navigation from 'A#foo' to 'A#bar' is not a same-document
325 // navigation, but a different-document one. This is why history navigation
326 // are classified before this check.
327 if (new_url.has_ref() && old_url.EqualsIgnoringRef(new_url) &&
328 frame_entry.method() == "GET") {
329 return FrameMsg_Navigate_Type::SAME_DOCUMENT;
330 } else {
331 return FrameMsg_Navigate_Type::DIFFERENT_DOCUMENT;
332 }
333}
334
Camille Lamy5193caa2018-10-12 11:59:42335// Adjusts the original input URL if needed, to get the URL to actually load and
336// the virtual URL, which may differ.
337void RewriteUrlForNavigation(const GURL& original_url,
338 BrowserContext* browser_context,
339 GURL* url_to_load,
340 GURL* virtual_url,
341 bool* reverse_on_redirect) {
342 // Fix up the given URL before letting it be rewritten, so that any minor
343 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
344 *virtual_url = original_url;
345 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(virtual_url,
346 browser_context);
347
348 // Allow the browser URL handler to rewrite the URL. This will, for example,
349 // remove "view-source:" from the beginning of the URL to get the URL that
350 // will actually be loaded. This real URL won't be shown to the user, just
351 // used internally.
352 *url_to_load = *virtual_url;
353 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
354 url_to_load, browser_context, reverse_on_redirect);
355}
356
357#if DCHECK_IS_ON()
358// Helper sanity check function used in debug mode.
359void ValidateRequestMatchesEntry(NavigationRequest* request,
360 NavigationEntryImpl* entry) {
361 if (request->frame_tree_node()->IsMainFrame()) {
362 DCHECK_EQ(request->browser_initiated(), !entry->is_renderer_initiated());
363 DCHECK(ui::PageTransitionTypeIncludingQualifiersIs(
364 request->common_params().transition, entry->GetTransitionType()));
365 }
366 DCHECK_EQ(request->common_params().should_replace_current_entry,
367 entry->should_replace_entry());
Nasko Oskovc36327d2019-01-03 23:23:04368 DCHECK_EQ(request->commit_params().should_clear_history_list,
Camille Lamy5193caa2018-10-12 11:59:42369 entry->should_clear_history_list());
370 DCHECK_EQ(request->common_params().has_user_gesture,
371 entry->has_user_gesture());
372 DCHECK_EQ(request->common_params().base_url_for_data_url,
373 entry->GetBaseURLForDataURL());
Nasko Oskovc36327d2019-01-03 23:23:04374 DCHECK_EQ(request->commit_params().can_load_local_resources,
Camille Lamy5193caa2018-10-12 11:59:42375 entry->GetCanLoadLocalResources());
376 DCHECK_EQ(request->common_params().started_from_context_menu,
377 entry->has_started_from_context_menu());
378
379 FrameNavigationEntry* frame_entry =
380 entry->GetFrameEntry(request->frame_tree_node());
381 if (!frame_entry) {
382 NOTREACHED();
383 return;
384 }
385
386 DCHECK_EQ(request->common_params().url, frame_entry->url());
387 DCHECK_EQ(request->common_params().method, frame_entry->method());
388
Nasko Oskovc36327d2019-01-03 23:23:04389 size_t redirect_size = request->commit_params().redirects.size();
Camille Lamy5193caa2018-10-12 11:59:42390 if (redirect_size == frame_entry->redirect_chain().size()) {
391 for (size_t i = 0; i < redirect_size; ++i) {
Nasko Oskovc36327d2019-01-03 23:23:04392 DCHECK_EQ(request->commit_params().redirects[i],
Camille Lamy5193caa2018-10-12 11:59:42393 frame_entry->redirect_chain()[i]);
394 }
395 } else {
396 NOTREACHED();
397 }
398}
399#endif // DCHECK_IS_ON()
400
[email protected]e9ba4472008-09-14 15:42:43401} // namespace
402
[email protected]d202a7c2012-01-04 07:53:47403// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29404
[email protected]23a918b2014-07-15 09:51:36405const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23406
[email protected]765b35502008-08-21 00:51:20407// static
[email protected]d202a7c2012-01-04 07:53:47408size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23409 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20410
[email protected]e6fec472013-05-14 05:29:02411// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20412// when testing.
413static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29414
[email protected]71fde352011-12-29 03:29:56415// static
dcheng9bfa5162016-04-09 01:00:57416std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
417 const GURL& url,
418 const Referrer& referrer,
419 ui::PageTransition transition,
420 bool is_renderer_initiated,
421 const std::string& extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:09422 BrowserContext* browser_context,
423 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
Camille Lamy5193caa2018-10-12 11:59:42424 GURL url_to_load;
425 GURL virtual_url;
[email protected]71fde352011-12-29 03:29:56426 bool reverse_on_redirect = false;
Camille Lamy5193caa2018-10-12 11:59:42427 RewriteUrlForNavigation(url, browser_context, &url_to_load, &virtual_url,
428 &reverse_on_redirect);
[email protected]71fde352011-12-29 03:29:56429
430 NavigationEntryImpl* entry = new NavigationEntryImpl(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28431 nullptr, // The site instance for tabs is sent on navigation
432 // (WebContents::GetSiteInstance).
Camille Lamy5193caa2018-10-12 11:59:42433 url_to_load, referrer, base::string16(), transition,
434 is_renderer_initiated, blob_url_loader_factory);
435 entry->SetVirtualURL(virtual_url);
436 entry->set_user_typed_url(virtual_url);
[email protected]71fde352011-12-29 03:29:56437 entry->set_update_virtual_url_with_url(reverse_on_redirect);
438 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57439 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56440}
441
[email protected]cdcb1dee2012-01-04 00:46:20442// static
443void NavigationController::DisablePromptOnRepost() {
444 g_check_for_repost = false;
445}
446
[email protected]c5b88d82012-10-06 17:03:33447base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
448 base::Time t) {
449 // If |t| is between the water marks, we're in a run of duplicates
450 // or just getting out of it, so increase the high-water mark to get
451 // a time that probably hasn't been used before and return it.
452 if (low_water_mark_ <= t && t <= high_water_mark_) {
453 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
454 return high_water_mark_;
455 }
456
457 // Otherwise, we're clear of the last duplicate run, so reset the
458 // water marks.
459 low_water_mark_ = high_water_mark_ = t;
460 return t;
461}
462
[email protected]d202a7c2012-01-04 07:53:47463NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57464 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19465 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37466 : browser_context_(browser_context),
ananta3bdd8ae2016-12-22 17:11:55467 pending_entry_(nullptr),
avi45a72532015-04-07 21:01:45468 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20469 last_committed_entry_index_(-1),
470 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47471 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57472 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22473 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57474 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09475 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28476 in_navigate_to_pending_entry_(false),
toyoshim0df1d3a2016-09-09 09:52:48477 pending_reload_(ReloadType::NONE),
[email protected]8cea7892013-02-06 06:49:31478 get_timestamp_callback_(base::Bind(&base::Time::Now)),
toyoshima63c2a62016-09-29 09:03:26479 last_committed_reload_type_(ReloadType::NONE) {
[email protected]3d7474ff2011-07-27 17:47:37480 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29481}
482
[email protected]d202a7c2012-01-04 07:53:47483NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47484 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29485}
486
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57487WebContents* NavigationControllerImpl::GetWebContents() {
[email protected]ec6c05f2013-10-23 18:41:57488 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32489}
490
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57491BrowserContext* NavigationControllerImpl::GetBrowserContext() {
[email protected]a26023822011-12-29 00:23:55492 return browser_context_;
493}
494
[email protected]d202a7c2012-01-04 07:53:47495void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30496 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36497 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57498 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57499 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55500 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57501 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14502 selected_navigation < static_cast<int>(entries->size()));
arthursonzogni5c4c202d2017-04-25 23:41:27503 DCHECK_EQ(-1, pending_entry_index_);
[email protected]ce3fa3c2009-04-20 19:55:57504
[email protected]ce3fa3c2009-04-20 19:55:57505 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:44506 needs_reload_type_ = NeedsReloadType::kRestoreSession;
avif16f85a72015-11-13 18:25:03507 entries_.reserve(entries->size());
508 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36509 entries_.push_back(
510 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03511
512 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
513 // cleared out safely.
514 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57515
516 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36517 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57518}
519
toyoshim6142d96f2016-12-19 09:07:25520void NavigationControllerImpl::Reload(ReloadType reload_type,
521 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28522 DCHECK_NE(ReloadType::NONE, reload_type);
523
[email protected]669e0ba2012-08-30 23:57:36524 if (transient_entry_index_ != -1) {
525 // If an interstitial is showing, treat a reload as a navigation to the
526 // transient entry's URL.
creis3da03872015-02-20 21:12:32527 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27528 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36529 return;
[email protected]6286a3792013-10-09 04:03:27530 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21531 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35532 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27533 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47534 return;
[email protected]669e0ba2012-08-30 23:57:36535 }
[email protected]cbab76d2008-10-13 22:42:47536
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28537 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32538 int current_index = -1;
539
540 // If we are reloading the initial navigation, just use the current
541 // pending entry. Otherwise look up the current entry.
542 if (IsInitialNavigation() && pending_entry_) {
543 entry = pending_entry_;
544 // The pending entry might be in entries_ (e.g., after a Clone), so we
545 // should also update the current_index.
546 current_index = pending_entry_index_;
547 } else {
548 DiscardNonCommittedEntriesInternal();
549 current_index = GetCurrentEntryIndex();
550 if (current_index != -1) {
creis3da03872015-02-20 21:12:32551 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32552 }
[email protected]979a4bc2013-04-24 01:27:15553 }
[email protected]241db352013-04-22 18:04:05554
[email protected]59167c22013-06-03 18:07:32555 // If we are no where, then we can't reload. TODO(darin): We should add a
556 // CanReload method.
557 if (!entry)
558 return;
559
toyoshima63c2a62016-09-29 09:03:26560 // Check if previous navigation was a reload to track consecutive reload
561 // operations.
562 if (last_committed_reload_type_ != ReloadType::NONE) {
563 DCHECK(!last_committed_reload_time_.is_null());
564 base::Time now =
565 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
566 DCHECK_GT(now, last_committed_reload_time_);
567 if (!last_committed_reload_time_.is_null() &&
568 now > last_committed_reload_time_) {
569 base::TimeDelta delta = now - last_committed_reload_time_;
570 UMA_HISTOGRAM_MEDIUM_TIMES("Navigation.Reload.ReloadToReloadDuration",
571 delta);
toyoshimb0d4eed32016-12-09 06:03:04572 if (last_committed_reload_type_ == ReloadType::NORMAL) {
toyoshima63c2a62016-09-29 09:03:26573 UMA_HISTOGRAM_MEDIUM_TIMES(
574 "Navigation.Reload.ReloadMainResourceToReloadDuration", delta);
575 }
576 }
577 }
578
579 // Set ReloadType for |entry| in order to check it at commit time.
580 entry->set_reload_type(reload_type);
581
[email protected]cdcb1dee2012-01-04 00:46:20582 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32583 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30584 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07585 // they really want to do this. If they do, the dialog will call us back
586 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57587 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02588
[email protected]106a0812010-03-18 00:15:12589 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57590 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29591 } else {
[email protected]59167c22013-06-03 18:07:32592 if (!IsInitialNavigation())
593 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26594
Nasko Oskovaee2f862018-06-15 00:05:52595 pending_entry_ = entry;
596 pending_entry_index_ = current_index;
597 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22598
clamy3cb9bea92018-07-10 12:42:02599 NavigateToExistingPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29600 }
601}
602
[email protected]d202a7c2012-01-04 07:53:47603void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48604 DCHECK(pending_reload_ != ReloadType::NONE);
605 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12606}
607
[email protected]d202a7c2012-01-04 07:53:47608void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48609 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12610 NOTREACHED();
611 } else {
toyoshim6142d96f2016-12-19 09:07:25612 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48613 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12614 }
615}
616
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57617bool NavigationControllerImpl::IsInitialNavigation() {
[email protected]27ba81c2012-08-21 17:04:09618 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11619}
620
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57621bool NavigationControllerImpl::IsInitialBlankNavigation() {
creis10a4ab72015-10-13 17:22:40622 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48623 // we'll need to check for entry count 1 and restore_type NONE (to exclude
624 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40625 return IsInitialNavigation() && GetEntryCount() == 0;
626}
627
avi254eff02015-07-01 08:27:58628NavigationEntryImpl*
629NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
630 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03631 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58632}
633
avi25764702015-06-23 15:43:37634void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57635 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47636 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37637 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27638 DCHECK_EQ(-1, pending_entry_index_);
[email protected]8ff00d72012-10-23 19:12:21639 NotificationService::current()->Notify(
640 NOTIFICATION_NAV_ENTRY_PENDING,
641 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37642 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20643}
644
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57645NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() {
[email protected]cbab76d2008-10-13 22:42:47646 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03647 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47648 if (pending_entry_)
649 return pending_entry_;
650 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20651}
652
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57653NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() {
[email protected]867e1f92011-08-30 19:01:19654 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03655 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32656 // The pending entry is safe to return for new (non-history), browser-
657 // initiated navigations. Most renderer-initiated navigations should not
658 // show the pending entry, to prevent URL spoof attacks.
659 //
660 // We make an exception for renderer-initiated navigations in new tabs, as
661 // long as no other page has tried to access the initial empty document in
662 // the new tab. If another page modifies this blank page, a URL spoof is
663 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32664 bool safe_to_show_pending =
665 pending_entry_ &&
666 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09667 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32668 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46669 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32670
671 // Also allow showing the pending entry for history navigations in a new tab,
672 // such as Ctrl+Back. In this case, no existing page is visible and no one
673 // can script the new tab before it commits.
674 if (!safe_to_show_pending &&
675 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09676 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32677 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34678 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32679 safe_to_show_pending = true;
680
681 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19682 return pending_entry_;
683 return GetLastCommittedEntry();
684}
685
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57686int NavigationControllerImpl::GetCurrentEntryIndex() {
[email protected]cbab76d2008-10-13 22:42:47687 if (transient_entry_index_ != -1)
688 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20689 if (pending_entry_index_ != -1)
690 return pending_entry_index_;
691 return last_committed_entry_index_;
692}
693
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57694NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() {
[email protected]765b35502008-08-21 00:51:20695 if (last_committed_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28696 return nullptr;
avif16f85a72015-11-13 18:25:03697 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20698}
699
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57700bool NavigationControllerImpl::CanViewSource() {
[email protected]ec6c05f2013-10-23 18:41:57701 const std::string& mime_type = delegate_->GetContentsMimeType();
Kinuko Yasuda74702f92017-07-31 03:27:53702 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
703 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27704 NavigationEntry* visible_entry = GetVisibleEntry();
705 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57706 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16707}
708
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57709int NavigationControllerImpl::GetLastCommittedEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:27710 // The last committed entry index must always be less than the number of
711 // entries. If there are no entries, it must be -1. However, there may be a
712 // transient entry while the last committed entry index is still -1.
713 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
714 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55715 return last_committed_entry_index_;
716}
717
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57718int NavigationControllerImpl::GetEntryCount() {
arthursonzogni5c4c202d2017-04-25 23:41:27719 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55720 return static_cast<int>(entries_.size());
721}
722
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57723NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(int index) {
avi25764702015-06-23 15:43:37724 if (index < 0 || index >= GetEntryCount())
725 return nullptr;
726
avif16f85a72015-11-13 18:25:03727 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25728}
729
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57730NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(int offset) {
avi057ce1492015-06-29 15:59:47731 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20732}
733
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57734int NavigationControllerImpl::GetIndexForOffset(int offset) {
[email protected]7bc2b032012-12-19 22:45:46735 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03736}
737
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57738bool NavigationControllerImpl::CanGoBack() {
avi56e40c92015-08-27 00:11:22739 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20740}
741
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57742bool NavigationControllerImpl::CanGoForward() {
avi56e40c92015-08-27 00:11:22743 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20744}
745
Lucas Furukawa Gadani5553a1582019-01-08 18:55:57746bool NavigationControllerImpl::CanGoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03747 int index = GetIndexForOffset(offset);
748 return index >= 0 && index < GetEntryCount();
749}
750
[email protected]d202a7c2012-01-04 07:53:47751void NavigationControllerImpl::GoBack() {
shivanisha55201872018-12-13 04:29:06752 int target_index = GetIndexForOffset(-1);
753
754 // Log metrics for the number of entries that are eligible for skipping on
Shivani Sharma2d5b4b6b2019-01-08 16:07:16755 // back button and move the target index past the skippable entries, if
756 // history intervention is enabled.
757 // TODO(crbug.com/907167): Implement the case when all entries are
758 // skippable.
shivanisha55201872018-12-13 04:29:06759 int count_entries_skipped = 0;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16760 bool history_intervention_enabled = base::FeatureList::IsEnabled(
761 features::kHistoryManipulationIntervention);
shivanisha55201872018-12-13 04:29:06762 for (int index = target_index; index >= 0; index--) {
Shivani Sharma2d5b4b6b2019-01-08 16:07:16763 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
shivanisha55201872018-12-13 04:29:06764 count_entries_skipped++;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16765 } else {
766 if (history_intervention_enabled)
767 target_index = index;
shivanisha55201872018-12-13 04:29:06768 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16769 }
shivanisha55201872018-12-13 04:29:06770 }
771 UMA_HISTOGRAM_ENUMERATION("Navigation.BackForward.BackTargetSkipped",
772 count_entries_skipped, kMaxSessionHistoryEntries);
773
shivanisha55201872018-12-13 04:29:06774 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20775}
776
[email protected]d202a7c2012-01-04 07:53:47777void NavigationControllerImpl::GoForward() {
shivanisha55201872018-12-13 04:29:06778 int target_index = GetIndexForOffset(1);
779
780 // Log metrics for the number of entries that are eligible for skipping on
Shivani Sharma2d5b4b6b2019-01-08 16:07:16781 // forward button and move the target index past the skippable entries, if
782 // history intervention is enabled.
783 // Note that at least one entry (the last one) will be non-skippable since
784 // entries are marked skippable only when they add another entry because of
785 // redirect or pushState.
shivanisha55201872018-12-13 04:29:06786 int count_entries_skipped = 0;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16787 bool history_intervention_enabled = base::FeatureList::IsEnabled(
788 features::kHistoryManipulationIntervention);
shivanisha55201872018-12-13 04:29:06789 for (size_t index = target_index; index < entries_.size(); index++) {
Shivani Sharma2d5b4b6b2019-01-08 16:07:16790 if (GetEntryAtIndex(index)->should_skip_on_back_forward_ui()) {
shivanisha55201872018-12-13 04:29:06791 count_entries_skipped++;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16792 } else {
793 if (history_intervention_enabled)
794 target_index = index;
shivanisha55201872018-12-13 04:29:06795 break;
Shivani Sharma2d5b4b6b2019-01-08 16:07:16796 }
shivanisha55201872018-12-13 04:29:06797 }
798 UMA_HISTOGRAM_ENUMERATION("Navigation.BackForward.ForwardTargetSkipped",
799 count_entries_skipped, kMaxSessionHistoryEntries);
800
shivanisha55201872018-12-13 04:29:06801 GoToIndex(target_index);
[email protected]765b35502008-08-21 00:51:20802}
803
[email protected]d202a7c2012-01-04 07:53:47804void NavigationControllerImpl::GoToIndex(int index) {
sunjian30574a62017-03-21 21:39:44805 TRACE_EVENT0("browser,navigation,benchmark",
806 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:20807 if (index < 0 || index >= static_cast<int>(entries_.size())) {
808 NOTREACHED();
809 return;
810 }
811
[email protected]cbab76d2008-10-13 22:42:47812 if (transient_entry_index_ != -1) {
813 if (index == transient_entry_index_) {
814 // Nothing to do when navigating to the transient.
815 return;
816 }
817 if (index > transient_entry_index_) {
818 // Removing the transient is goint to shift all entries by 1.
819 index--;
820 }
821 }
822
823 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20824
arthursonzogni5c4c202d2017-04-25 23:41:27825 DCHECK_EQ(nullptr, pending_entry_);
826 DCHECK_EQ(-1, pending_entry_index_);
827 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:20828 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:27829 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
830 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
clamy3cb9bea92018-07-10 12:42:02831 NavigateToExistingPendingEntry(ReloadType::NONE);
[email protected]765b35502008-08-21 00:51:20832}
833
[email protected]d202a7c2012-01-04 07:53:47834void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12835 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03836 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20837 return;
838
[email protected]9ba14052012-06-22 23:50:03839 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20840}
841
[email protected]41374f12013-07-24 02:49:28842bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
843 if (index == last_committed_entry_index_ ||
844 index == pending_entry_index_)
845 return false;
[email protected]6a13a6c2011-12-20 21:47:12846
[email protected]43032342011-03-21 14:10:31847 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28848 return true;
[email protected]cbab76d2008-10-13 22:42:47849}
850
[email protected]d202a7c2012-01-04 07:53:47851void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23852 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32853 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31854 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51855 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
856 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32857 }
858}
859
[email protected]d202a7c2012-01-04 07:53:47860void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47861 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21862 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35863 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47864 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47865 LoadURLParams params(url);
866 params.referrer = referrer;
867 params.transition_type = transition;
868 params.extra_headers = extra_headers;
869 LoadURLWithParams(params);
870}
871
872void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43873 TRACE_EVENT1("browser,navigation",
874 "NavigationControllerImpl::LoadURLWithParams",
875 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43876 if (HandleDebugURL(params.url, params.transition_type)) {
877 // If Telemetry is running, allow the URL load to proceed as if it's
878 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49879 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43880 cc::switches::kEnableGpuBenchmarking))
881 return;
882 }
[email protected]8bf1048012012-02-08 01:22:18883
[email protected]cf002332012-08-14 19:17:47884 // Checks based on params.load_type.
885 switch (params.load_type) {
886 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:43887 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47888 break;
889 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26890 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47891 NOTREACHED() << "Data load must use data scheme.";
892 return;
893 }
894 break;
895 default:
896 NOTREACHED();
897 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:46898 }
[email protected]e47ae9472011-10-13 19:48:34899
[email protected]e47ae9472011-10-13 19:48:34900 // The user initiated a load, we don't need to reload anymore.
901 needs_reload_ = false;
902
clamy21718cc22018-06-13 13:34:24903 NavigateWithoutEntry(params);
[email protected]132e281a2012-07-31 18:32:44904}
905
creisb4dc9332016-03-14 21:39:19906bool NavigationControllerImpl::PendingEntryMatchesHandle(
907 NavigationHandleImpl* handle) const {
908 return pending_entry_ &&
909 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
910}
911
[email protected]d202a7c2012-01-04 07:53:47912bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32913 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22914 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
peary21b0f797b2016-09-28 17:28:33915 LoadCommittedDetails* details,
Eugene But712f03d2018-05-22 16:03:44916 bool is_same_document_navigation,
shivanisha41f04c52018-12-12 15:52:05917 bool previous_page_was_activated,
Camille Lamy10aafcd32018-12-05 15:48:13918 NavigationRequest* navigation_request) {
919 DCHECK(navigation_request);
[email protected]cd2e15742013-03-08 04:08:31920 is_initial_navigation_ = false;
921
[email protected]0e8db942008-09-24 21:21:48922 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:43923 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:48924 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51925 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55926 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:43927 if (pending_entry_ &&
928 pending_entry_->GetIsOverridingUserAgent() !=
929 GetLastCommittedEntry()->GetIsOverridingUserAgent())
930 overriding_user_agent_changed = true;
[email protected]0e8db942008-09-24 21:21:48931 } else {
932 details->previous_url = GURL();
933 details->previous_entry_index = -1;
934 }
[email protected]ecd9d8702008-08-28 22:10:17935
fdegans9caf66a2015-07-30 21:10:42936 // If there is a pending entry at this point, it should have a SiteInstance,
937 // except for restored entries.
jam48cea9082017-02-15 06:13:29938 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:48939 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
940 pending_entry_->restore_type() != RestoreType::NONE);
941 if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
942 pending_entry_->set_restore_type(RestoreType::NONE);
jam48cea9082017-02-15 06:13:29943 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:48944 }
[email protected]e9ba4472008-09-14 15:42:43945
Nasko Oskovaee2f862018-06-15 00:05:52946 // If this is a navigation to a matching pending_entry_ and the SiteInstance
947 // has changed, this must be treated as a new navigation with replacement.
948 // Set the replacement bit here and ClassifyNavigation will identify this
949 // case and return NEW_PAGE.
950 if (!rfh->GetParent() && pending_entry_ &&
951 pending_entry_->GetUniqueID() == params.nav_entry_id &&
952 pending_entry_->site_instance() &&
953 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
954 DCHECK_NE(-1, pending_entry_index_);
955 // TODO(nasko,creis): Instead of setting this value here, set
956 // should_replace_current_entry on the parameters we send to the
957 // renderer process as part of CommitNavigation. The renderer should
958 // in turn send it back here as part of |params| and it can be just
959 // enforced and renderer process terminated on mismatch.
960 details->did_replace_entry = true;
961 } else {
962 // The renderer tells us whether the navigation replaces the current entry.
963 details->did_replace_entry = params.should_replace_current_entry;
964 }
[email protected]bcd904482012-02-01 01:54:22965
[email protected]e9ba4472008-09-14 15:42:43966 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43967 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20968
eugenebutee08663a2017-04-27 17:43:12969 // is_same_document must be computed before the entry gets committed.
Eugene But712f03d2018-05-22 16:03:44970 details->is_same_document = is_same_document_navigation;
[email protected]b9d4dfdc2013-08-08 00:25:12971
toyoshima63c2a62016-09-29 09:03:26972 // Save reload type and timestamp for a reload navigation to detect
973 // consecutive reloads when the next reload is requested.
Camille Lamy10aafcd32018-12-05 15:48:13974 NavigationHandleImpl* navigation_handle =
975 navigation_request->navigation_handle();
976 DCHECK(navigation_handle);
clamy3bf35e3c2016-11-10 15:59:44977 if (PendingEntryMatchesHandle(navigation_handle)) {
toyoshima63c2a62016-09-29 09:03:26978 if (pending_entry_->reload_type() != ReloadType::NONE) {
979 last_committed_reload_type_ = pending_entry_->reload_type();
980 last_committed_reload_time_ =
981 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
982 } else if (!pending_entry_->is_renderer_initiated() ||
983 params.gesture == NavigationGestureUser) {
984 last_committed_reload_type_ = ReloadType::NONE;
985 last_committed_reload_time_ = base::Time();
986 }
987 }
988
[email protected]0e8db942008-09-24 21:21:48989 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21990 case NAVIGATION_TYPE_NEW_PAGE:
shivanisha41f04c52018-12-12 15:52:05991 RendererDidNavigateToNewPage(
992 rfh, params, details->is_same_document, details->did_replace_entry,
993 previous_page_was_activated, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43994 break;
[email protected]8ff00d72012-10-23 19:12:21995 case NAVIGATION_TYPE_EXISTING_PAGE:
eugenebutee08663a2017-04-27 17:43:12996 RendererDidNavigateToExistingPage(rfh, params, details->is_same_document,
jam48cea9082017-02-15 06:13:29997 was_restored, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43998 break;
[email protected]8ff00d72012-10-23 19:12:21999 case NAVIGATION_TYPE_SAME_PAGE:
Joe DeBlasio531e3d92018-11-06 06:26:121000 RendererDidNavigateToSamePage(rfh, params, details->is_same_document,
1001 navigation_handle);
[email protected]e9ba4472008-09-14 15:42:431002 break;
[email protected]8ff00d72012-10-23 19:12:211003 case NAVIGATION_TYPE_NEW_SUBFRAME:
eugenebutee08663a2017-04-27 17:43:121004 RendererDidNavigateNewSubframe(rfh, params, details->is_same_document,
creisf49dfc92016-07-26 17:05:181005 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:431006 break;
[email protected]8ff00d72012-10-23 19:12:211007 case NAVIGATION_TYPE_AUTO_SUBFRAME:
creis59d5a47cb2016-08-24 23:57:191008 if (!RendererDidNavigateAutoSubframe(rfh, params)) {
creisce0ef3572017-01-26 17:53:081009 // We don't send a notification about auto-subframe PageState during
1010 // UpdateStateForFrame, since it looks like nothing has changed. Send
1011 // it here at commit time instead.
1012 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:431013 return false;
creis59d5a47cb2016-08-24 23:57:191014 }
[email protected]e9ba4472008-09-14 15:42:431015 break;
[email protected]8ff00d72012-10-23 19:12:211016 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:491017 // If a pending navigation was in progress, this canceled it. We should
1018 // discard it and make sure it is removed from the URL bar. After that,
1019 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:431020 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:491021 if (pending_entry_) {
1022 DiscardNonCommittedEntries();
pdr15f5b5b2017-06-20 00:58:001023 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:491024 }
[email protected]e9ba4472008-09-14 15:42:431025 return false;
1026 default:
1027 NOTREACHED();
[email protected]765b35502008-08-21 00:51:201028 }
1029
[email protected]688aa65c62012-09-28 04:32:221030 // At this point, we know that the navigation has just completed, so
1031 // record the time.
1032 //
1033 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:261034 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:331035 base::Time timestamp =
1036 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
1037 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:221038 << timestamp.ToInternalValue();
1039
[email protected]f233e4232013-02-23 00:55:141040 // We should not have a pending entry anymore. Clear it again in case any
1041 // error cases above forgot to do so.
1042 DiscardNonCommittedEntriesInternal();
1043
[email protected]e9ba4472008-09-14 15:42:431044 // All committed entries should have nonempty content state so WebKit doesn't
1045 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:471046 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:321047 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:221048 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:441049 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:121050
Charles Reisc0507202017-09-21 00:40:021051 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
1052 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
1053 // A mismatch can occur if the renderer lies or due to a unique name collision
1054 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:121055 FrameNavigationEntry* frame_entry =
1056 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:021057 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
1058 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:031059 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:081060 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
1061 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:031062 DCHECK(params.page_state == frame_entry->page_state());
creis4e2ecb72015-06-20 00:46:301063 }
[email protected]132e281a2012-07-31 18:32:441064
[email protected]d6def3d2014-05-19 18:55:321065 // Use histogram to track memory impact of redirect chain because it's now
1066 // not cleared for committed entries.
1067 size_t redirect_chain_size = 0;
1068 for (size_t i = 0; i < params.redirects.size(); ++i) {
1069 redirect_chain_size += params.redirects[i].spec().length();
1070 }
Steven Holte95922222018-09-14 20:06:231071 UMA_HISTOGRAM_COUNTS_1M("Navigation.RedirectChainSize", redirect_chain_size);
[email protected]d6def3d2014-05-19 18:55:321072
[email protected]97d8f0d2013-10-29 16:49:211073 // Once it is committed, we no longer need to track several pieces of state on
1074 // the entry.
naskoc7533512016-05-06 17:01:121075 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131076
shivanisha41f04c52018-12-12 15:52:051077 // It is possible that we are re-using this entry and it was marked to be
1078 // skipped on back/forward UI in its previous navigation. Reset it here so
1079 // that it is set afresh, if applicable, for this navigation.
1080 active_entry->set_should_skip_on_back_forward_ui(false);
1081
[email protected]49bd30e62011-03-22 20:12:591082 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221083 // TODO(creis): This check won't pass for subframes until we create entries
1084 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001085 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421086 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591087
[email protected]b26de072013-02-23 02:33:441088 // Remember the bindings the renderer process has at this point, so that
1089 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:321090 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:441091
[email protected]e9ba4472008-09-14 15:42:431092 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001093 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001094 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311095 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531096
[email protected]93f230e02011-06-01 14:40:001097 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291098
John Abd-El-Malek380d3c5922017-09-08 00:20:311099 if (active_entry->GetURL().SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1100 navigation_handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek969cdd94e2017-07-10 22:18:161101 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus",
1102 !!active_entry->GetSSL().certificate);
1103 }
1104
aelias100c9192017-01-13 00:01:431105 if (overriding_user_agent_changed)
1106 delegate_->UpdateOverridingUserAgent();
1107
creis03b48002015-11-04 00:54:561108 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1109 // one knows the latest NavigationEntry it is showing (whether it has
1110 // committed anything in this navigation or not). This allows things like
1111 // state and title updates from RenderFrames to apply to the latest relevant
1112 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381113 int nav_entry_id = active_entry->GetUniqueID();
1114 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
1115 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:431116 return true;
initial.commit09911bf2008-07-26 23:55:291117}
1118
[email protected]8ff00d72012-10-23 19:12:211119NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321120 RenderFrameHostImpl* rfh,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571121 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi7c6f35e2015-05-08 17:52:381122 if (params.did_create_new_entry) {
1123 // A new entry. We may or may not have a pending entry for the page, and
1124 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001125 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381126 return NAVIGATION_TYPE_NEW_PAGE;
1127 }
1128
1129 // When this is a new subframe navigation, we should have a committed page
1130 // in which it's a subframe. This may not be the case when an iframe is
1131 // navigated on a popup navigated to about:blank (the iframe would be
1132 // written into the popup by script on the main page). For these cases,
1133 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:231134 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381135 return NAVIGATION_TYPE_NAV_IGNORE;
1136
1137 // Valid subframe navigation.
1138 return NAVIGATION_TYPE_NEW_SUBFRAME;
1139 }
1140
1141 // We only clear the session history when navigating to a new page.
1142 DCHECK(!params.history_list_was_cleared);
1143
avi39c1edd32015-06-04 20:06:001144 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381145 // All manual subframes would be did_create_new_entry and handled above, so
1146 // we know this is auto.
1147 if (GetLastCommittedEntry()) {
1148 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1149 } else {
1150 // We ignore subframes created in non-committed pages; we'd appreciate if
1151 // people stopped doing that.
1152 return NAVIGATION_TYPE_NAV_IGNORE;
1153 }
1154 }
1155
1156 if (params.nav_entry_id == 0) {
1157 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1158 // create a new page.
1159
1160 // Just like above in the did_create_new_entry case, it's possible to
1161 // scribble onto an uncommitted page. Again, there isn't any navigation
1162 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231163 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231164 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381165 return NAVIGATION_TYPE_NAV_IGNORE;
1166
Charles Reis1378111f2017-11-08 21:44:061167 // This is history.replaceState() or history.reload().
Nasko Oskov332593c2018-08-16 17:21:341168 // TODO(nasko): With error page isolation, reloading an existing session
1169 // history entry can result in change of SiteInstance. Check for such a case
1170 // here and classify it as NEW_PAGE, as such navigations should be treated
1171 // as new with replacement.
avi259dc792015-07-07 04:42:361172 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381173 }
1174
Nasko Oskovaee2f862018-06-15 00:05:521175 if (pending_entry_ && pending_entry_->GetUniqueID() == params.nav_entry_id) {
1176 // If the SiteInstance of the |pending_entry_| does not match the
1177 // SiteInstance that got committed, treat this as a new navigation with
1178 // replacement. This can happen if back/forward/reload encounters a server
1179 // redirect to a different site or an isolated error page gets successfully
1180 // reloaded into a different SiteInstance.
1181 if (pending_entry_->site_instance() &&
1182 pending_entry_->site_instance() != rfh->GetSiteInstance()) {
creis77c9aa32015-09-25 19:59:421183 return NAVIGATION_TYPE_NEW_PAGE;
Nasko Oskovaee2f862018-06-15 00:05:521184 }
creis77c9aa32015-09-25 19:59:421185
Nasko Oskovaee2f862018-06-15 00:05:521186 if (pending_entry_index_ == -1) {
1187 // In this case, we have a pending entry for a load of a new URL but Blink
1188 // didn't do a new navigation (params.did_create_new_entry). First check
1189 // to make sure Blink didn't treat a new cross-process navigation as
1190 // inert, and thus set params.did_create_new_entry to false. In that case,
1191 // we must treat it as NEW since the SiteInstance doesn't match the entry.
1192 if (!GetLastCommittedEntry() ||
1193 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance()) {
1194 return NAVIGATION_TYPE_NEW_PAGE;
1195 }
1196
1197 // Otherwise, this happens when you press enter in the URL bar to reload.
1198 // We will create a pending entry, but Blink will convert it to a reload
1199 // since it's the same page and not create a new entry for it (the user
1200 // doesn't want to have a new back/forward entry when they do this).
1201 // Therefore we want to just ignore the pending entry and go back to where
1202 // we were (the "existing entry").
1203 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
1204 return NAVIGATION_TYPE_SAME_PAGE;
1205 }
avi7c6f35e2015-05-08 17:52:381206 }
1207
creis26d22632017-04-21 20:23:561208 // Everything below here is assumed to be an existing entry, but if there is
1209 // no last committed entry, we must consider it a new navigation instead.
1210 if (!GetLastCommittedEntry())
1211 return NAVIGATION_TYPE_NEW_PAGE;
1212
avi7c6f35e2015-05-08 17:52:381213 if (params.intended_as_new_entry) {
1214 // This was intended to be a navigation to a new entry but the pending entry
1215 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1216 // may not have a pending entry.
1217 return NAVIGATION_TYPE_EXISTING_PAGE;
1218 }
1219
1220 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1221 params.nav_entry_id == failed_pending_entry_id_) {
1222 // If the renderer was going to a new pending entry that got cleared because
1223 // of an error, this is the case of the user trying to retry a failed load
1224 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1225 // have a pending entry.
1226 return NAVIGATION_TYPE_EXISTING_PAGE;
1227 }
1228
1229 // Now we know that the notification is for an existing page. Find that entry.
1230 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1231 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441232 // The renderer has committed a navigation to an entry that no longer
1233 // exists. Because the renderer is showing that page, resurrect that entry.
1234 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381235 }
1236
avi7c6f35e2015-05-08 17:52:381237 // Since we weeded out "new" navigations above, we know this is an existing
1238 // (back/forward) navigation.
1239 return NAVIGATION_TYPE_EXISTING_PAGE;
1240}
1241
[email protected]d202a7c2012-01-04 07:53:471242void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321243 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221244 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361245 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441246 bool replace_entry,
shivanisha41f04c52018-12-12 15:52:051247 bool previous_page_was_activated,
clamy3bf35e3c2016-11-10 15:59:441248 NavigationHandleImpl* handle) {
dcheng9bfa5162016-04-09 01:00:571249 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181250 bool update_virtual_url = false;
1251
1252 // First check if this is an in-page navigation. If so, clone the current
1253 // entry instead of looking at the pending entry, because the pending entry
1254 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361255 if (is_same_document && GetLastCommittedEntry()) {
creisf49dfc92016-07-26 17:05:181256 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481257 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisf49dfc92016-07-26 17:05:181258 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581259 params.url, &params.origin, params.referrer, params.redirects,
1260 params.page_state, params.method, params.post_id,
1261 nullptr /* blob_url_loader_factory */);
Charles Reisf44482022017-10-13 21:15:031262
creisf49dfc92016-07-26 17:05:181263 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1264 frame_entry, true, rfh->frame_tree_node(),
1265 delegate_->GetFrameTree()->root());
jama78746e2017-02-22 17:21:571266 if (new_entry->GetURL().GetOrigin() != params.url.GetOrigin()) {
1267 // TODO(jam): we had one report of this with a URL that was redirecting to
1268 // only tildes. Until we understand that better, don't copy the cert in
1269 // this case.
1270 new_entry->GetSSL() = SSLStatus();
John Abd-El-Malek9cd697e2017-07-12 21:53:141271
John Abd-El-Malek380d3c5922017-09-08 00:20:311272 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1273 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141274 UMA_HISTOGRAM_BOOLEAN(
1275 "Navigation.SecureSchemeHasSSLStatus.NewPageInPageOriginMismatch",
1276 !!new_entry->GetSSL().certificate);
1277 }
jama78746e2017-02-22 17:21:571278 }
creisf49dfc92016-07-26 17:05:181279
1280 // We expect |frame_entry| to be owned by |new_entry|. This should never
1281 // fail, because it's the main frame.
1282 CHECK(frame_entry->HasOneRef());
1283
1284 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malek9cd697e2017-07-12 21:53:141285
John Abd-El-Malek380d3c5922017-09-08 00:20:311286 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1287 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141288 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.NewPageInPage",
1289 !!new_entry->GetSSL().certificate);
1290 }
creisf49dfc92016-07-26 17:05:181291 }
1292
[email protected]6dd86ab2013-02-27 00:30:341293 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041294 // that was just loaded. Verify this by checking if the entry corresponds
clamy3bf35e3c2016-11-10 15:59:441295 // to the given navigation handle. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041296 // 1. The SiteInstance hasn't been assigned to something else.
1297 // 2. The pending entry was intended as a new entry, rather than being a
1298 // history navigation that was interrupted by an unrelated,
1299 // renderer-initiated navigation.
1300 // TODO(csharrison): Investigate whether we can remove some of the coarser
1301 // checks.
creisf49dfc92016-07-26 17:05:181302 if (!new_entry &&
1303 PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341304 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431305 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351306 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431307
[email protected]f1eb87a2011-05-06 17:49:411308 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malekf36e05f2017-11-30 16:17:521309 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141310
John Abd-El-Malek380d3c5922017-09-08 00:20:311311 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1312 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141313 UMA_HISTOGRAM_BOOLEAN(
1314 "Navigation.SecureSchemeHasSSLStatus.NewPagePendingEntryMatches",
1315 !!new_entry->GetSSL().certificate);
1316 }
creisf49dfc92016-07-26 17:05:181317 }
1318
1319 // For non-in-page commits with no matching pending entry, create a new entry.
1320 if (!new_entry) {
dcheng9bfa5162016-04-09 01:00:571321 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241322
1323 // Find out whether the new entry needs to update its virtual URL on URL
1324 // change and set up the entry accordingly. This is needed to correctly
1325 // update the virtual URL when replaceState is called after a pushState.
1326 GURL url = params.url;
1327 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431328 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1329 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241330 new_entry->set_update_virtual_url_with_url(needs_update);
1331
[email protected]f1eb87a2011-05-06 17:49:411332 // When navigating to a new page, give the browser URL handler a chance to
1333 // update the virtual URL based on the new URL. For example, this is needed
1334 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1335 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241336 update_virtual_url = needs_update;
John Abd-El-Malekf36e05f2017-11-30 16:17:521337 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141338
John Abd-El-Malek380d3c5922017-09-08 00:20:311339 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1340 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141341 UMA_HISTOGRAM_BOOLEAN(
1342 "Navigation.SecureSchemeHasSSLStatus.NewPageNoMatchingEntry",
1343 !!new_entry->GetSSL().certificate);
1344 }
[email protected]e9ba4472008-09-14 15:42:431345 }
1346
wjmaclean7431bb22015-02-19 14:53:431347 // Don't use the page type from the pending entry. Some interstitial page
1348 // may have set the type to interstitial. Once we commit, however, the page
1349 // type must always be normal or error.
1350 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1351 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041352 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411353 if (update_virtual_url)
avi25764702015-06-23 15:43:371354 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251355 new_entry->SetReferrer(params.referrer);
[email protected]022af742011-12-28 18:37:251356 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331357 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431358 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231359 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221360 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431361
creis8b5cd4c2015-06-19 00:11:081362 // Update the FrameNavigationEntry for new main frame commits.
1363 FrameNavigationEntry* frame_entry =
1364 new_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisd2a509f2017-09-27 23:47:481365 frame_entry->set_frame_unique_name(rfh->frame_tree_node()->unique_name());
creis8b5cd4c2015-06-19 00:11:081366 frame_entry->set_item_sequence_number(params.item_sequence_number);
1367 frame_entry->set_document_sequence_number(params.document_sequence_number);
Charles Reisf44482022017-10-13 21:15:031368 frame_entry->set_redirect_chain(params.redirects);
1369 frame_entry->SetPageState(params.page_state);
clamy432acb22016-04-15 19:41:431370 frame_entry->set_method(params.method);
1371 frame_entry->set_post_id(params.post_id);
Nasko Oskov18006bc2018-12-06 02:53:581372 frame_entry->set_origin(params.origin);
creis8b5cd4c2015-06-19 00:11:081373
eugenebut604866f2017-05-10 21:35:361374 // history.pushState() is classified as a navigation to a new page, but sets
1375 // is_same_document to true. In this case, we already have the title and
creisf49dfc92016-07-26 17:05:181376 // favicon available, so set them immediately.
eugenebut604866f2017-05-10 21:35:361377 if (is_same_document && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331378 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191379 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1380 }
[email protected]ff64b3e2014-05-31 04:07:331381
[email protected]60d6cca2013-04-30 08:47:131382 DCHECK(!params.history_list_was_cleared || !replace_entry);
1383 // The browser requested to clear the session history when it initiated the
1384 // navigation. Now we know that the renderer has updated its state accordingly
1385 // and it is safe to also clear the browser side history.
1386 if (params.history_list_was_cleared) {
1387 DiscardNonCommittedEntriesInternal();
1388 entries_.clear();
1389 last_committed_entry_index_ = -1;
1390 }
1391
Nasko Oskovaee2f862018-06-15 00:05:521392 // If this is a new navigation with replacement and there is a
1393 // pending_entry_ which matches the navigation reported by the renderer
1394 // process, then it should be the one replaced, so update the
1395 // last_committed_entry_index_ to use it.
1396 if (replace_entry && pending_entry_index_ != -1 &&
1397 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1398 last_committed_entry_index_ = pending_entry_index_;
1399 }
1400
shivanisha41f04c52018-12-12 15:52:051401 // The previous page that started this navigation needs to be skipped in
1402 // subsequent back/forward UI navigations if it never received any user
1403 // gesture. This is to intervene against pages that manipulate the history
1404 // such that the user is not able to go back to the last site they interacted
1405 // with (crbug.com/907167).
1406 if (!replace_entry && !previous_page_was_activated &&
1407 last_committed_entry_index_ != -1 && handle->IsRendererInitiated()) {
1408 GetLastCommittedEntry()->set_should_skip_on_back_forward_ui(true);
shivanisha55201872018-12-13 04:29:061409 UMA_HISTOGRAM_BOOLEAN("Navigation.BackForward.SetShouldSkipOnBackForwardUI",
1410 true);
1411 } else if (last_committed_entry_index_ != -1) {
1412 UMA_HISTOGRAM_BOOLEAN("Navigation.BackForward.SetShouldSkipOnBackForwardUI",
1413 false);
shivanisha41f04c52018-12-12 15:52:051414 }
1415
dcheng36b6aec92015-12-26 06:16:361416 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431417}
1418
[email protected]d202a7c2012-01-04 07:53:471419void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321420 RenderFrameHostImpl* rfh,
jam0576b132016-09-07 05:13:101421 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361422 bool is_same_document,
jam48cea9082017-02-15 06:13:291423 bool was_restored,
clamy3bf35e3c2016-11-10 15:59:441424 NavigationHandleImpl* handle) {
creis26d22632017-04-21 20:23:561425 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1426 << "that a last committed entry exists.";
1427
[email protected]e9ba4472008-09-14 15:42:431428 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001429 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431430
avicbdc4c12015-07-01 16:07:111431 NavigationEntryImpl* entry;
1432 if (params.intended_as_new_entry) {
1433 // This was intended as a new entry but the pending entry was lost in the
1434 // meanwhile and no new page was created. We are stuck at the last committed
1435 // entry.
1436 entry = GetLastCommittedEntry();
eugenebut604866f2017-05-10 21:35:361437 // If this is a same document navigation, then there's no SSLStatus in the
jam1325c822017-03-17 18:20:541438 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361439 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521440 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141441
John Abd-El-Malek380d3c5922017-09-08 00:20:311442 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1443 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141444 bool has_cert = !!entry->GetSSL().certificate;
1445 if (is_same_document) {
1446 UMA_HISTOGRAM_BOOLEAN(
1447 "Navigation.SecureSchemeHasSSLStatus."
1448 "ExistingPageSameDocumentIntendedAsNew",
1449 has_cert);
1450 } else {
1451 UMA_HISTOGRAM_BOOLEAN(
1452 "Navigation.SecureSchemeHasSSLStatus."
1453 "ExistingPageDifferentDocumentIntendedAsNew",
1454 has_cert);
1455 }
1456 }
avicbdc4c12015-07-01 16:07:111457 } else if (params.nav_entry_id) {
1458 // This is a browser-initiated navigation (back/forward/reload).
1459 entry = GetEntryWithUniqueID(params.nav_entry_id);
jamd208b90ce2016-09-01 16:58:161460
eugenebut604866f2017-05-10 21:35:361461 if (is_same_document) {
1462 // There's no SSLStatus in the NavigationHandle for same document
1463 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
1464 // this was a restored same document navigation entry, then it won't have
1465 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
1466 // navigated it.
jam48cea9082017-02-15 06:13:291467 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
1468 if (entry->GetURL().GetOrigin() == last_entry->GetURL().GetOrigin() &&
1469 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
1470 was_restored) {
1471 entry->GetSSL() = last_entry->GetSSL();
1472 }
1473 } else {
John Abd-El-Malek3f247082017-12-07 19:02:191474 // In rapid back/forward navigations |handle| sometimes won't have a cert
1475 // (http://crbug.com/727892). So we use the handle's cert if it exists,
1476 // otherwise we only reuse the existing cert if the origins match.
1477 if (handle->GetSSLInfo().is_valid()) {
John Abd-El-Malekf36e05f2017-11-30 16:17:521478 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek3f247082017-12-07 19:02:191479 } else if (entry->GetURL().GetOrigin() != handle->GetURL().GetOrigin()) {
1480 entry->GetSSL() = SSLStatus();
1481 }
jam48cea9082017-02-15 06:13:291482 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141483
John Abd-El-Malek380d3c5922017-09-08 00:20:311484 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1485 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141486 bool has_cert = !!entry->GetSSL().certificate;
1487 if (is_same_document && was_restored) {
1488 UMA_HISTOGRAM_BOOLEAN(
1489 "Navigation.SecureSchemeHasSSLStatus."
1490 "ExistingPageSameDocumentRestoredBrowserInitiated",
1491 has_cert);
1492 } else if (is_same_document && !was_restored) {
1493 UMA_HISTOGRAM_BOOLEAN(
1494 "Navigation.SecureSchemeHasSSLStatus."
1495 "ExistingPageSameDocumentBrowserInitiated",
1496 has_cert);
1497 } else if (!is_same_document && was_restored) {
1498 UMA_HISTOGRAM_BOOLEAN(
1499 "Navigation.SecureSchemeHasSSLStatus."
1500 "ExistingPageRestoredBrowserInitiated",
1501 has_cert);
1502 } else {
1503 UMA_HISTOGRAM_BOOLEAN(
1504 "Navigation.SecureSchemeHasSSLStatus.ExistingPageBrowserInitiated",
1505 has_cert);
1506 }
1507 }
avicbdc4c12015-07-01 16:07:111508 } else {
1509 // This is renderer-initiated. The only kinds of renderer-initated
Charles Reis1378111f2017-11-08 21:44:061510 // navigations that are EXISTING_PAGE are reloads and history.replaceState,
avicbdc4c12015-07-01 16:07:111511 // which land us at the last committed entry.
1512 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101513
Mikel Astizba9cf2fd2017-12-17 10:38:101514 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
1515 // to avoid misleading interpretations (e.g. URLs paired with
1516 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
1517 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
1518 // | PAGE_TRANSITION_CLIENT_REDIRECT).
1519
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571520 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(entry, entry);
Mikel Astizba9cf2fd2017-12-17 10:38:101521
eugenebut604866f2017-05-10 21:35:361522 // If this is a same document navigation, then there's no SSLStatus in the
jam0576b132016-09-07 05:13:101523 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361524 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521525 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141526
John Abd-El-Malek380d3c5922017-09-08 00:20:311527 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1528 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141529 bool has_cert = !!entry->GetSSL().certificate;
1530 if (is_same_document) {
1531 UMA_HISTOGRAM_BOOLEAN(
1532 "Navigation.SecureSchemeHasSSLStatus."
1533 "ExistingPageSameDocumentRendererInitiated",
1534 has_cert);
1535 } else {
1536 UMA_HISTOGRAM_BOOLEAN(
1537 "Navigation.SecureSchemeHasSSLStatus."
1538 "ExistingPageDifferentDocumentRendererInitiated",
1539 has_cert);
1540 }
1541 }
avicbdc4c12015-07-01 16:07:111542 }
1543 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431544
[email protected]5ccd4dc2012-10-24 02:28:141545 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431546 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1547 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041548 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201549 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321550 if (entry->update_virtual_url_with_url())
1551 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141552
jam015ba062017-01-06 21:17:001553 // The site instance will normally be the same except
1554 // 1) session restore, when no site instance will be assigned or
1555 // 2) redirect, when the site instance is reset.
naskoaf182192016-08-11 02:12:011556 DCHECK(entry->site_instance() == nullptr ||
jam015ba062017-01-06 21:17:001557 !entry->GetRedirectChain().empty() ||
naskoaf182192016-08-11 02:12:011558 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431559
naskoaf182192016-08-11 02:12:011560 // Update the existing FrameNavigationEntry to ensure all of its members
1561 // reflect the parameters coming from the renderer process.
1562 entry->AddOrUpdateFrameEntry(
1563 rfh->frame_tree_node(), params.item_sequence_number,
1564 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581565 params.url, params.origin, params.referrer, params.redirects,
1566 params.page_state, params.method, params.post_id,
1567 nullptr /* blob_url_loader_factory */);
creis22a7b4c2016-04-28 07:20:301568
[email protected]5ccd4dc2012-10-24 02:28:141569 // The redirected to page should not inherit the favicon from the previous
1570 // page.
eugenebut604866f2017-05-10 21:35:361571 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:481572 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141573
[email protected]e9ba4472008-09-14 15:42:431574 // The entry we found in the list might be pending if the user hit
1575 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591576 // list, we can just discard the pending pointer). We should also discard the
1577 // pending entry if it corresponds to a different navigation, since that one
1578 // is now likely canceled. If it is not canceled, we will treat it as a new
1579 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431580 //
1581 // Note that we need to use the "internal" version since we don't want to
1582 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491583 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391584
[email protected]80858db52009-10-15 00:35:181585 // If a transient entry was removed, the indices might have changed, so we
1586 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111587 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431588}
1589
[email protected]d202a7c2012-01-04 07:53:471590void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321591 RenderFrameHostImpl* rfh,
clamy3bf35e3c2016-11-10 15:59:441592 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
Joe DeBlasio531e3d92018-11-06 06:26:121593 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441594 NavigationHandleImpl* handle) {
aviaf5660962015-06-30 15:12:291595 // This classification says that we have a pending entry that's the same as
1596 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091597 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291598 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431599
creis77c9aa32015-09-25 19:59:421600 // If we classified this correctly, the SiteInstance should not have changed.
1601 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1602
[email protected]e9ba4472008-09-14 15:42:431603 // We assign the entry's unique ID to be that of the new one. Since this is
1604 // always the result of a user action, we want to dismiss infobars, etc. like
1605 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421606 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511607 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431608
[email protected]a0e69262009-06-03 19:08:481609 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431610 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1611 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321612 if (existing_entry->update_virtual_url_with_url())
1613 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041614 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481615
jamd208b90ce2016-09-01 16:58:161616 // If a user presses enter in the omnibox and the server redirects, the URL
Joe DeBlasio531e3d92018-11-06 06:26:121617 // might change (but it's still considered a SAME_PAGE navigation), so we must
1618 // update the SSL status if we perform a network request (e.g. a
1619 // non-same-document navigation). Requests that don't result in a network
1620 // request do not have a valid SSL status, but since the document didn't
1621 // change, the previous SSLStatus is still valid.
1622 if (!is_same_document)
1623 existing_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
jamd208b90ce2016-09-01 16:58:161624
John Abd-El-Malek509dfd62017-09-05 21:34:491625 if (existing_entry->GetURL().SchemeIs(url::kHttpsScheme) &&
John Abd-El-Malek380d3c5922017-09-08 00:20:311626 !rfh->GetParent() && handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141627 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.SamePage",
1628 !!existing_entry->GetSSL().certificate);
1629 }
1630
jianlid26f6c92016-10-12 21:03:171631 // The extra headers may have changed due to reloading with different headers.
1632 existing_entry->set_extra_headers(pending_entry_->extra_headers());
1633
naskoaf182192016-08-11 02:12:011634 // Update the existing FrameNavigationEntry to ensure all of its members
1635 // reflect the parameters coming from the renderer process.
1636 existing_entry->AddOrUpdateFrameEntry(
1637 rfh->frame_tree_node(), params.item_sequence_number,
1638 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581639 params.url, params.origin, params.referrer, params.redirects,
1640 params.page_state, params.method, params.post_id,
1641 nullptr /* blob_url_loader_factory */);
[email protected]b77686522013-12-11 20:34:191642
[email protected]cbab76d2008-10-13 22:42:471643 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431644}
1645
[email protected]d202a7c2012-01-04 07:53:471646void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321647 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521648 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361649 bool is_same_document,
creis1857908a2016-02-25 20:31:521650 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261651 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1652 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111653
[email protected]e9ba4472008-09-14 15:42:431654 // Manual subframe navigations just get the current entry cloned so the user
1655 // can go back or forward to it. The actual subframe information will be
1656 // stored in the page state for each of those entries. This happens out of
1657 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091658 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1659 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381660
Mikel Astizba9cf2fd2017-12-17 10:38:101661 // The DCHECK below documents the fact that we don't know of any situation
1662 // where |replace_entry| is true for subframe navigations. This simplifies
1663 // reasoning about the replacement struct for subframes (see
1664 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
1665 DCHECK(!replace_entry);
1666
creisce0ef3572017-01-26 17:53:081667 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1668 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481669 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisce0ef3572017-01-26 17:53:081670 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581671 params.url, &params.origin, params.referrer, params.redirects,
1672 params.page_state, params.method, params.post_id,
1673 nullptr /* blob_url_loader_factory */));
Charles Reisf44482022017-10-13 21:15:031674
creisce0ef3572017-01-26 17:53:081675 std::unique_ptr<NavigationEntryImpl> new_entry =
1676 GetLastCommittedEntry()->CloneAndReplace(
eugenebut604866f2017-05-10 21:35:361677 frame_entry.get(), is_same_document, rfh->frame_tree_node(),
creisce0ef3572017-01-26 17:53:081678 delegate_->GetFrameTree()->root());
creise062d542015-08-25 02:01:551679
creisce0ef3572017-01-26 17:53:081680 // TODO(creis): Update this to add the frame_entry if we can't find the one
1681 // to replace, which can happen due to a unique name change. See
1682 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1683 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381684
creis1857908a2016-02-25 20:31:521685 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431686}
1687
[email protected]d202a7c2012-01-04 07:53:471688bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321689 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221690 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291691 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1692 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1693
[email protected]e9ba4472008-09-14 15:42:431694 // We're guaranteed to have a previously committed entry, and we now need to
1695 // handle navigation inside of a subframe in it without creating a new entry.
1696 DCHECK(GetLastCommittedEntry());
1697
creis913c63ce2016-07-16 19:52:521698 // For newly created subframes, we don't need to send a commit notification.
1699 // This is only necessary for history navigations in subframes.
1700 bool send_commit_notification = false;
1701
1702 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1703 // a history navigation. Update the last committed index accordingly.
1704 // If we don't recognize the |nav_entry_id|, it might be a recently pruned
1705 // entry. We'll handle it below.
avi98405c22015-05-21 20:47:061706 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511707 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
creis3cdc3b02015-05-29 23:00:471708 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061709 // Make sure that a subframe commit isn't changing the main frame's
1710 // origin. Otherwise the renderer process may be confused, leading to a
1711 // URL spoof. We can't check the path since that may change
1712 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:571713 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
1714 // about:blank, file, and unique origins are more subtle to get right.
Eugene But9fb98d12018-05-22 18:28:331715 // We'll abstract out the relevant checks from IsURLSameDocumentNavigation
1716 // and share them here. See https://crbug.com/618104.
creis37988b92016-06-10 18:03:571717 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
1718 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
1719 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
1720 dest_top_url.SchemeIsHTTPOrHTTPS() &&
1721 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511722 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1723 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061724 }
creis3cdc3b02015-05-29 23:00:471725
creis913c63ce2016-07-16 19:52:521726 // We only need to discard the pending entry in this history navigation
1727 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:061728 last_committed_entry_index_ = entry_index;
1729 DiscardNonCommittedEntriesInternal();
creis913c63ce2016-07-16 19:52:521730
1731 // History navigations should send a commit notification.
1732 send_commit_notification = true;
avi98405c22015-05-21 20:47:061733 }
[email protected]e9ba4472008-09-14 15:42:431734 }
[email protected]f233e4232013-02-23 00:55:141735
creisce0ef3572017-01-26 17:53:081736 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1737 // it may be a "history auto" case where we update an existing one.
1738 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
1739 last_committed->AddOrUpdateFrameEntry(
1740 rfh->frame_tree_node(), params.item_sequence_number,
1741 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Nasko Oskov18006bc2018-12-06 02:53:581742 params.url, params.origin, params.referrer, params.redirects,
1743 params.page_state, params.method, params.post_id,
1744 nullptr /* blob_url_loader_factory */);
creis625a0c7d2015-03-24 23:17:121745
creis913c63ce2016-07-16 19:52:521746 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:431747}
1748
[email protected]d202a7c2012-01-04 07:53:471749int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231750 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031751 for (size_t i = 0; i < entries_.size(); ++i) {
1752 if (entries_[i].get() == entry)
1753 return i;
1754 }
1755 return -1;
[email protected]765b35502008-08-21 00:51:201756}
1757
Eugene But7cc259d2017-10-09 23:52:491758// There are two general cases where a navigation is "same-document":
avidb7d1d22015-06-08 21:21:501759// 1. A fragment navigation, in which the url is kept the same except for the
1760// reference fragment.
1761// 2. A history API navigation (pushState and replaceState). This case is
Eugene But7cc259d2017-10-09 23:52:491762// always same-document, but the urls are not guaranteed to match excluding
1763// the fragment. The relevant spec allows pushState/replaceState to any URL
1764// on the same origin.
avidb7d1d22015-06-08 21:21:501765// However, due to reloads, even identical urls are *not* guaranteed to be
Eugene But7cc259d2017-10-09 23:52:491766// same-document navigations, we have to trust the renderer almost entirely.
avidb7d1d22015-06-08 21:21:501767// The one thing we do know is that cross-origin navigations will *never* be
Eugene But7cc259d2017-10-09 23:52:491768// same-document. Therefore, trust the renderer if the URLs are on the same
1769// origin, and assume the renderer is malicious if a cross-origin navigation
1770// claims to be same-document.
creisf164daa2016-06-07 00:17:051771//
1772// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1773// which are likely redundant with each other. Be careful about data URLs vs
1774// about:blank, both of which are unique origins and thus not considered equal.
Eugene But7cc259d2017-10-09 23:52:491775bool NavigationControllerImpl::IsURLSameDocumentNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121776 const GURL& url,
creisf164daa2016-06-07 00:17:051777 const url::Origin& origin,
Eugene But7cc259d2017-10-09 23:52:491778 bool renderer_says_same_document,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571779 RenderFrameHost* rfh) {
creis225a7432016-06-03 22:56:271780 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501781 GURL last_committed_url;
1782 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271783 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1784 // which might be empty in a new RenderFrameHost after a process swap.
1785 // Here, we care about the last committed URL in the FrameTreeNode,
1786 // regardless of which process it is in.
1787 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501788 } else {
1789 NavigationEntry* last_committed = GetLastCommittedEntry();
1790 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1791 // might Blink say that a navigation is in-page yet there be no last-
1792 // committed entry?
1793 if (!last_committed)
1794 return false;
1795 last_committed_url = last_committed->GetURL();
1796 }
1797
1798 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271799 const url::Origin& committed_origin =
1800 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501801 bool is_same_origin = last_committed_url.is_empty() ||
1802 // TODO(japhet): We should only permit navigations
1803 // originating from about:blank to be in-page if the
1804 // about:blank is the first document that frame loaded.
1805 // We don't have sufficient information to identify
1806 // that case at the moment, so always allow about:blank
1807 // for now.
csharrisona3bd0b32016-10-19 18:40:481808 last_committed_url == url::kAboutBlankURL ||
avidb7d1d22015-06-08 21:21:501809 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051810 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501811 !prefs.web_security_enabled ||
1812 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471813 committed_origin.scheme() == url::kFileScheme);
Eugene But7cc259d2017-10-09 23:52:491814 if (!is_same_origin && renderer_says_same_document) {
avidb7d1d22015-06-08 21:21:501815 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1816 bad_message::NC_IN_PAGE_NAVIGATION);
1817 }
Eugene But7cc259d2017-10-09 23:52:491818 return is_same_origin && renderer_says_same_document;
[email protected]e9ba4472008-09-14 15:42:431819}
1820
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571821void NavigationControllerImpl::CopyStateFrom(NavigationController* temp,
Francois Dorayeaace782017-06-21 16:37:241822 bool needs_reload) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571823 NavigationControllerImpl* source =
1824 static_cast<NavigationControllerImpl*>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571825 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551826 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571827
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571828 if (source->GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571829 return; // Nothing new to do.
1830
Francois Dorayeaace782017-06-21 16:37:241831 needs_reload_ = needs_reload;
Bo Liucdfa4b12018-11-06 00:21:441832 needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571833 InsertEntriesFrom(source, source->GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571834
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571835 for (auto it = source->session_storage_namespace_map_.begin();
1836 it != source->session_storage_namespace_map_.end(); ++it) {
[email protected]fdac6ade2013-07-20 01:06:301837 SessionStorageNamespaceImpl* source_namespace =
1838 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1839 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1840 }
[email protected]4e6419c2010-01-15 04:50:341841
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571842 FinishRestore(source->last_committed_entry_index_,
toyoshim0df1d3a2016-09-09 09:52:481843 RestoreType::CURRENT_SESSION);
[email protected]ce3fa3c2009-04-20 19:55:571844}
1845
[email protected]d202a7c2012-01-04 07:53:471846void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571847 NavigationController* temp,
1848 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161849 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011850 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161851
[email protected]d202a7c2012-01-04 07:53:471852 NavigationControllerImpl* source =
1853 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251854
avi2b177592014-12-10 02:08:021855 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011856 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251857
[email protected]474f8512013-05-31 22:31:161858 // We now have one entry, possibly with a new pending entry. Ensure that
1859 // adding the entries from source won't put us over the limit.
1860 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571861 if (!replace_entry)
1862 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251863
[email protected]47e020a2010-10-15 14:43:371864 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021865 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161866 // since it has not committed in source.
1867 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251868 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551869 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251870 else
1871 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571872
1873 // Ignore the source's current entry if merging with replacement.
1874 // TODO(davidben): This should preserve entries forward of the current
1875 // too. http://crbug.com/317872
1876 if (replace_entry && max_source_index > 0)
1877 max_source_index--;
1878
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571879 InsertEntriesFrom(source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251880
1881 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551882 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141883
avi2b177592014-12-10 02:08:021884 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1885 GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251886}
1887
[email protected]79368982013-11-13 01:11:011888bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161889 // If there is no last committed entry, we cannot prune. Even if there is a
1890 // pending entry, it may not commit, leaving this WebContents blank, despite
1891 // possibly giving it new entries via CopyStateFromAndPrune.
1892 if (last_committed_entry_index_ == -1)
1893 return false;
[email protected]9350602e2013-02-26 23:27:441894
[email protected]474f8512013-05-31 22:31:161895 // We cannot prune if there is a pending entry at an existing entry index.
1896 // It may not commit, so we have to keep the last committed entry, and thus
1897 // there is no sensible place to keep the pending entry. It is ok to have
1898 // a new pending entry, which can optionally commit as a new navigation.
1899 if (pending_entry_index_ != -1)
1900 return false;
1901
1902 // We should not prune if we are currently showing a transient entry.
1903 if (transient_entry_index_ != -1)
1904 return false;
1905
1906 return true;
1907}
1908
[email protected]79368982013-11-13 01:11:011909void NavigationControllerImpl::PruneAllButLastCommitted() {
1910 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161911
avi2b177592014-12-10 02:08:021912 DCHECK_EQ(0, last_committed_entry_index_);
1913 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441914
avi2b177592014-12-10 02:08:021915 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1916 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441917}
1918
[email protected]79368982013-11-13 01:11:011919void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161920 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011921 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261922
[email protected]474f8512013-05-31 22:31:161923 // Erase all entries but the last committed entry. There may still be a
1924 // new pending entry after this.
1925 entries_.erase(entries_.begin(),
1926 entries_.begin() + last_committed_entry_index_);
1927 entries_.erase(entries_.begin() + 1, entries_.end());
1928 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261929}
1930
Christian Dullweber1af31e62018-02-22 11:49:481931void NavigationControllerImpl::DeleteNavigationEntries(
1932 const DeletionPredicate& deletionPredicate) {
1933 // It is up to callers to check the invariants before calling this.
1934 CHECK(CanPruneAllButLastCommitted());
1935 std::vector<int> delete_indices;
1936 for (size_t i = 0; i < entries_.size(); i++) {
1937 if (i != static_cast<size_t>(last_committed_entry_index_) &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:571938 deletionPredicate.Run(entries_[i].get())) {
Christian Dullweber1af31e62018-02-22 11:49:481939 delete_indices.push_back(i);
1940 }
1941 }
1942 if (delete_indices.empty())
1943 return;
1944
1945 if (delete_indices.size() == GetEntryCount() - 1U) {
1946 PruneAllButLastCommitted();
1947 } else {
1948 // Do the deletion in reverse to preserve indices.
1949 for (auto it = delete_indices.rbegin(); it != delete_indices.rend(); ++it) {
1950 RemoveEntryAtIndex(*it);
1951 }
1952 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1953 GetEntryCount());
1954 }
1955 delegate()->NotifyNavigationEntriesDeleted();
1956}
1957
clamy987a3752018-05-03 17:36:261958void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
1959 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
1960 // progress, since this will cause a use-after-free. (We only allow this
1961 // when the tab is being destroyed for shutdown, since it won't return to
1962 // NavigateToEntry in that case.) http://crbug.com/347742.
1963 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
1964
1965 if (was_failure && pending_entry_) {
1966 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1967 } else {
1968 failed_pending_entry_id_ = 0;
1969 }
1970
1971 if (pending_entry_) {
1972 if (pending_entry_index_ == -1)
1973 delete pending_entry_;
1974 pending_entry_index_ = -1;
1975 pending_entry_ = nullptr;
1976 }
1977}
1978
1979void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
1980 if (pending_entry_)
1981 pending_entry_->set_ssl_error(error);
1982}
1983
Camille Lamy5193caa2018-10-12 11:59:421984#if defined(OS_ANDROID)
1985// static
1986bool NavigationControllerImpl::ValidateDataURLAsString(
1987 const scoped_refptr<const base::RefCountedString>& data_url_as_string) {
1988 if (!data_url_as_string)
1989 return false;
1990
1991 if (data_url_as_string->size() > kMaxLengthOfDataURLString)
1992 return false;
1993
1994 // The number of characters that is enough for validating a data: URI.
1995 // From the GURL's POV, the only important part here is scheme, it doesn't
1996 // check the actual content. Thus we can take only the prefix of the url, to
1997 // avoid unneeded copying of a potentially long string.
1998 const size_t kDataUriPrefixMaxLen = 64;
1999 GURL data_url(
2000 std::string(data_url_as_string->front_as<char>(),
2001 std::min(data_url_as_string->size(), kDataUriPrefixMaxLen)));
2002 if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
2003 return false;
2004
2005 return true;
2006}
2007#endif
2008
clamy987a3752018-05-03 17:36:262009bool NavigationControllerImpl::StartHistoryNavigationInNewSubframe(
2010 RenderFrameHostImpl* render_frame_host,
2011 const GURL& default_url) {
2012 NavigationEntryImpl* entry =
2013 GetEntryWithUniqueID(render_frame_host->nav_entry_id());
2014 if (!entry)
2015 return false;
2016
2017 FrameNavigationEntry* frame_entry =
2018 entry->GetFrameEntry(render_frame_host->frame_tree_node());
2019 if (!frame_entry)
2020 return false;
2021
2022 // Track how often history navigations load a different URL into a subframe
2023 // than the frame's default URL.
2024 bool restoring_different_url = frame_entry->url() != default_url;
2025 UMA_HISTOGRAM_BOOLEAN("SessionRestore.RestoredSubframeURL",
2026 restoring_different_url);
2027 // If this frame's unique name uses a frame path, record the name length.
2028 // If these names are long in practice, then a proposed plan to truncate
2029 // unique names might affect restore behavior, since it is complex to deal
2030 // with truncated names inside frame paths.
2031 if (restoring_different_url) {
2032 const std::string& unique_name =
2033 render_frame_host->frame_tree_node()->unique_name();
2034 const char kFramePathPrefix[] = "<!--framePath ";
2035 if (base::StartsWith(unique_name, kFramePathPrefix,
2036 base::CompareCase::SENSITIVE)) {
Steven Holte95922222018-09-14 20:06:232037 UMA_HISTOGRAM_COUNTS_1M("SessionRestore.RestoreSubframeFramePathLength",
2038 unique_name.size());
clamy987a3752018-05-03 17:36:262039 }
2040 }
2041
Camille Lamy5193caa2018-10-12 11:59:422042 std::unique_ptr<NavigationRequest> request = CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572043 render_frame_host->frame_tree_node(), entry, frame_entry,
clamyea99ea12018-05-28 13:54:232044 ReloadType::NONE, false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422045 true /* is_history_navigation_in_new_child */);
clamyea99ea12018-05-28 13:54:232046
2047 if (!request)
2048 return false;
2049
2050 render_frame_host->frame_tree_node()->navigator()->Navigate(
2051 std::move(request), ReloadType::NONE, RestoreType::NONE);
2052
2053 return true;
clamy987a3752018-05-03 17:36:262054}
2055
2056void NavigationControllerImpl::NavigateFromFrameProxy(
2057 RenderFrameHostImpl* render_frame_host,
2058 const GURL& url,
Nasko Oskov93e7c55c2018-12-19 01:59:292059 const url::Origin& initiator_origin,
clamy987a3752018-05-03 17:36:262060 bool is_renderer_initiated,
2061 SiteInstance* source_site_instance,
2062 const Referrer& referrer,
2063 ui::PageTransition page_transition,
2064 bool should_replace_current_entry,
Charlie Harrison8c113a32019-01-07 16:08:292065 NavigationDownloadPolicy download_policy,
clamy987a3752018-05-03 17:36:262066 const std::string& method,
2067 scoped_refptr<network::ResourceRequestBody> post_body,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092068 const std::string& extra_headers,
2069 scoped_refptr<network::SharedURLLoaderFactory> blob_url_loader_factory) {
clamy987a3752018-05-03 17:36:262070 FrameTreeNode* node = render_frame_host->frame_tree_node();
Nasko Oskov18006bc2018-12-06 02:53:582071
2072 // TODO(nasko): Plumb through the real initiator origin and use it to
2073 // compute the origin to use.
2074 url::Origin origin_to_use;
2075
clamy987a3752018-05-03 17:36:262076 // Create a NavigationEntry for the transfer, without making it the pending
2077 // entry. Subframe transfers should have a clone of the last committed entry
2078 // with a FrameNavigationEntry for the target frame. Main frame transfers
2079 // should have a new NavigationEntry.
2080 // TODO(creis): Make this unnecessary by creating (and validating) the params
2081 // directly, passing them to the destination RenderFrameHost. See
2082 // https://crbug.com/536906.
2083 std::unique_ptr<NavigationEntryImpl> entry;
2084 if (!node->IsMainFrame()) {
2085 // Subframe case: create FrameNavigationEntry.
2086 if (GetLastCommittedEntry()) {
2087 entry = GetLastCommittedEntry()->Clone();
2088 entry->set_extra_headers(extra_headers);
2089 // TODO(arthursonzogni): What about |is_renderer_initiated|?
2090 // Renderer-initiated navigation that target a remote frame are currently
2091 // classified as browser-initiated when this one has already navigated.
2092 // See https://crbug.com/722251.
2093 } else {
2094 // If there's no last committed entry, create an entry for about:blank
2095 // with a subframe entry for our destination.
2096 // TODO(creis): Ensure this case can't exist in https://crbug.com/524208.
2097 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2098 GURL(url::kAboutBlankURL), referrer, page_transition,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092099 is_renderer_initiated, extra_headers, browser_context_,
2100 nullptr /* blob_url_loader_factory */));
clamy987a3752018-05-03 17:36:262101 }
2102 entry->AddOrUpdateFrameEntry(
2103 node, -1, -1, nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582104 static_cast<SiteInstanceImpl*>(source_site_instance), url,
2105 origin_to_use, referrer, std::vector<GURL>(), PageState(), method, -1,
2106 blob_url_loader_factory);
clamy987a3752018-05-03 17:36:262107 } else {
2108 // Main frame case.
2109 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2110 url, referrer, page_transition, is_renderer_initiated, extra_headers,
Marijn Kruisselbrink7a0d5e182018-05-24 22:55:092111 browser_context_, blob_url_loader_factory));
clamy987a3752018-05-03 17:36:262112 entry->root_node()->frame_entry->set_source_site_instance(
2113 static_cast<SiteInstanceImpl*>(source_site_instance));
2114 entry->root_node()->frame_entry->set_method(method);
2115 }
clamy987a3752018-05-03 17:36:262116
2117 // Don't allow an entry replacement if there is no entry to replace.
2118 // http://crbug.com/457149
2119 if (should_replace_current_entry && GetEntryCount() > 0)
2120 entry->set_should_replace_entry(true);
Camille Lamy5193caa2018-10-12 11:59:422121
2122 bool override_user_agent = false;
clamy987a3752018-05-03 17:36:262123 if (GetLastCommittedEntry() &&
2124 GetLastCommittedEntry()->GetIsOverridingUserAgent()) {
2125 entry->SetIsOverridingUserAgent(true);
Camille Lamy5193caa2018-10-12 11:59:422126 override_user_agent = true;
clamy987a3752018-05-03 17:36:262127 }
2128 // TODO(creis): Set user gesture and intent received timestamp on Android.
2129
2130 // We may not have successfully added the FrameNavigationEntry to |entry|
2131 // above (per https://crbug.com/608402), in which case we create it from
2132 // scratch. This works because we do not depend on |frame_entry| being inside
2133 // |entry| during NavigateToEntry. This will go away when we shortcut this
2134 // further in https://crbug.com/536906.
2135 scoped_refptr<FrameNavigationEntry> frame_entry(entry->GetFrameEntry(node));
2136 if (!frame_entry) {
2137 frame_entry = new FrameNavigationEntry(
2138 node->unique_name(), -1, -1, nullptr,
Nasko Oskov18006bc2018-12-06 02:53:582139 static_cast<SiteInstanceImpl*>(source_site_instance), url,
2140 &origin_to_use, referrer, std::vector<GURL>(), PageState(), method, -1,
2141 blob_url_loader_factory);
clamy987a3752018-05-03 17:36:262142 }
2143
Camille Lamy5193caa2018-10-12 11:59:422144 LoadURLParams params(url);
Nasko Oskov93e7c55c2018-12-19 01:59:292145 params.initiator_origin = initiator_origin;
Camille Lamy5193caa2018-10-12 11:59:422146 params.source_site_instance = source_site_instance;
2147 params.load_type = method == "POST" ? LOAD_TYPE_HTTP_POST : LOAD_TYPE_DEFAULT;
2148 params.transition_type = page_transition;
2149 params.frame_tree_node_id =
2150 render_frame_host->frame_tree_node()->frame_tree_node_id();
2151 params.referrer = referrer;
2152 /* params.redirect_chain: skip */
2153 params.extra_headers = extra_headers;
2154 params.is_renderer_initiated = is_renderer_initiated;
2155 params.override_user_agent = UA_OVERRIDE_INHERIT;
2156 /* params.base_url_for_data_url: skip */
2157 /* params.virtual_url_for_data_url: skip */
2158 /* params.data_url_as_string: skip */
2159 params.post_data = post_body;
2160 params.can_load_local_resources = false;
2161 params.should_replace_current_entry = false;
2162 /* params.frame_name: skip */
2163 // TODO(clamy): See if user gesture should be propagated to this function.
2164 params.has_user_gesture = false;
2165 params.should_clear_history_list = false;
2166 params.started_from_context_menu = false;
2167 /* params.navigation_ui_data: skip */
2168 /* params.input_start: skip */
2169 params.was_activated = WasActivatedOption::kUnknown;
2170
2171 std::unique_ptr<NavigationRequest> request =
2172 CreateNavigationRequestFromLoadParams(
2173 render_frame_host->frame_tree_node(), params, override_user_agent,
2174 should_replace_current_entry, false /* has_user_gesture */,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572175 download_policy, ReloadType::NONE, entry.get(), frame_entry.get());
clamyea99ea12018-05-28 13:54:232176
2177 if (!request)
2178 return;
2179
2180 render_frame_host->frame_tree_node()->navigator()->Navigate(
2181 std::move(request), ReloadType::NONE, RestoreType::NONE);
clamy987a3752018-05-03 17:36:262182}
2183
[email protected]d1198fd2012-08-13 22:50:192184void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:302185 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:212186 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:192187 if (!session_storage_namespace)
2188 return;
2189
2190 // We can't overwrite an existing SessionStorage without violating spec.
2191 // Attempts to do so may give a tab access to another tab's session storage
2192 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:302193 bool successful_insert = session_storage_namespace_map_.insert(
2194 make_pair(partition_id,
2195 static_cast<SessionStorageNamespaceImpl*>(
2196 session_storage_namespace)))
2197 .second;
2198 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:192199}
2200
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572201bool NavigationControllerImpl::IsUnmodifiedBlankTab() {
[email protected]aa62afd2014-04-22 19:22:462202 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:102203 !GetLastCommittedEntry() &&
2204 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:462205}
2206
[email protected]a26023822011-12-29 00:23:552207SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:302208NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
2209 std::string partition_id;
2210 if (instance) {
2211 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
2212 // this if statement so |instance| must not be NULL.
2213 partition_id =
2214 GetContentClient()->browser()->GetStoragePartitionIdForSite(
2215 browser_context_, instance->GetSiteURL());
2216 }
[email protected]d1198fd2012-08-13 22:50:192217
[email protected]fdac6ade2013-07-20 01:06:302218 // TODO(ajwong): Should this use the |partition_id| directly rather than
2219 // re-lookup via |instance|? http://crbug.com/142685
2220 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:032221 BrowserContext::GetStoragePartition(browser_context_, instance);
2222 DOMStorageContextWrapper* context_wrapper =
2223 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
2224
2225 SessionStorageNamespaceMap::const_iterator it =
2226 session_storage_namespace_map_.find(partition_id);
2227 if (it != session_storage_namespace_map_.end()) {
2228 // Ensure that this namespace actually belongs to this partition.
2229 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
2230 IsFromContext(context_wrapper));
2231 return it->second.get();
2232 }
2233
2234 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:102235 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
2236 SessionStorageNamespaceImpl::Create(context_wrapper);
2237 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
2238 session_storage_namespace.get();
2239 session_storage_namespace_map_[partition_id] =
2240 std::move(session_storage_namespace);
[email protected]fdac6ade2013-07-20 01:06:302241
Daniel Murphy31bbb8b12018-02-07 21:44:102242 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:302243}
2244
2245SessionStorageNamespace*
2246NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
2247 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
Ivan Kotenkov2c0d2bb32017-11-01 15:41:282248 return GetSessionStorageNamespace(nullptr);
[email protected]fdac6ade2013-07-20 01:06:302249}
2250
2251const SessionStorageNamespaceMap&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572252NavigationControllerImpl::GetSessionStorageNamespaceMap() {
[email protected]fdac6ade2013-07-20 01:06:302253 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:552254}
[email protected]d202a7c2012-01-04 07:53:472255
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572256bool NavigationControllerImpl::NeedsReload() {
[email protected]71fde352011-12-29 03:29:562257 return needs_reload_;
2258}
[email protected]a26023822011-12-29 00:23:552259
[email protected]46bb5e9c2013-10-03 22:16:472260void NavigationControllerImpl::SetNeedsReload() {
2261 needs_reload_ = true;
Bo Liucdfa4b12018-11-06 00:21:442262 needs_reload_type_ = NeedsReloadType::kRequestedByClient;
jaekyunc8cefa82015-01-09 20:14:542263
2264 if (last_committed_entry_index_ != -1) {
2265 entries_[last_committed_entry_index_]->SetTransitionType(
2266 ui::PAGE_TRANSITION_RELOAD);
2267 }
[email protected]46bb5e9c2013-10-03 22:16:472268}
2269
[email protected]d202a7c2012-01-04 07:53:472270void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:552271 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:122272 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:312273
2274 DiscardNonCommittedEntries();
2275
2276 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:122277 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:312278 last_committed_entry_index_--;
2279}
2280
[email protected]d202a7c2012-01-04 07:53:472281void NavigationControllerImpl::DiscardNonCommittedEntries() {
pdr15f5b5b2017-06-20 00:58:002282 bool transient = transient_entry_index_ != -1;
[email protected]cbab76d2008-10-13 22:42:472283 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:292284
pdr15f5b5b2017-06-20 00:58:002285 // If there was a transient entry, invalidate everything so the new active
2286 // entry state is shown.
2287 if (transient) {
2288 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:472289 }
initial.commit09911bf2008-07-26 23:55:292290}
2291
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572292NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() {
arthursonzogni5c4c202d2017-04-25 23:41:272293 // If there is no pending_entry_, there should be no pending_entry_index_.
2294 DCHECK(pending_entry_ || pending_entry_index_ == -1);
2295
2296 // If there is a pending_entry_index_, then pending_entry_ must be the entry
2297 // at that index.
2298 DCHECK(pending_entry_index_ == -1 ||
2299 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
2300
[email protected]022af742011-12-28 18:37:252301 return pending_entry_;
2302}
2303
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572304int NavigationControllerImpl::GetPendingEntryIndex() {
arthursonzogni5c4c202d2017-04-25 23:41:272305 // The pending entry index must always be less than the number of entries.
2306 // If there are no entries, it must be exactly -1.
2307 DCHECK_LT(pending_entry_index_, GetEntryCount());
2308 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:552309 return pending_entry_index_;
2310}
2311
avi25764702015-06-23 15:43:372312void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:572313 std::unique_ptr<NavigationEntryImpl> entry,
2314 bool replace) {
mastiz7eddb5f72016-06-23 09:52:452315 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
2316 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:202317
avi5cad4912015-06-19 05:25:442318 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
2319 // need to keep continuity with the pending entry, so copy the pending entry's
2320 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
2321 // then the renderer navigated on its own, independent of the pending entry,
2322 // so don't copy anything.
2323 if (pending_entry_ && pending_entry_index_ == -1)
2324 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:202325
[email protected]cbab76d2008-10-13 22:42:472326 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:202327
2328 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:222329
2330 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:182331 if (replace && current_size > 0) {
Mikel Astizba9cf2fd2017-12-17 10:38:102332 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572333 entries_[last_committed_entry_index_].get(), entry.get());
dcheng36b6aec92015-12-26 06:16:362334 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:222335 return;
2336 }
[email protected]765b35502008-08-21 00:51:202337
creis37979a62015-08-04 19:48:182338 // We shouldn't see replace == true when there's no committed entries.
2339 DCHECK(!replace);
2340
[email protected]765b35502008-08-21 00:51:202341 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:452342 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:312343 // last_committed_entry_index_ must be updated here since calls to
2344 // NotifyPrunedEntries() below may re-enter and we must make sure
2345 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:492346 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:312347 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:492348 num_pruned++;
[email protected]765b35502008-08-21 00:51:202349 entries_.pop_back();
2350 current_size--;
2351 }
[email protected]c12bf1a12008-09-17 16:28:492352 if (num_pruned > 0) // Only notify if we did prune something.
2353 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:202354 }
2355
[email protected]944822b2012-03-02 20:57:252356 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:202357
dcheng36b6aec92015-12-26 06:16:362358 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:202359 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:292360}
2361
[email protected]944822b2012-03-02 20:57:252362void NavigationControllerImpl::PruneOldestEntryIfFull() {
Shivani Sharma2d5b4b6b2019-01-08 16:07:162363 if (entries_.size() < max_entry_count())
2364 return;
2365
2366 DCHECK_EQ(max_entry_count(), entries_.size());
2367 DCHECK_GT(last_committed_entry_index_, 0);
2368 RemoveEntryAtIndex(0);
2369 NotifyPrunedEntries(this, true, 1);
2370 // TODO(crbug.com/907167): Consider removing the earliest skippable entry
2371 // instead of the first entry.
[email protected]944822b2012-03-02 20:57:252372}
2373
clamy3cb9bea92018-07-10 12:42:022374void NavigationControllerImpl::NavigateToExistingPendingEntry(
2375 ReloadType reload_type) {
arthursonzogni5c4c202d2017-04-25 23:41:272376 DCHECK(pending_entry_);
clamy3cb9bea92018-07-10 12:42:022377 DCHECK(IsInitialNavigation() || pending_entry_index_ != -1);
2378 DCHECK(!IsRendererDebugURL(pending_entry_->GetURL()));
[email protected]72097fd02010-01-21 23:36:012379 needs_reload_ = false;
Arthur Sonzogni620cec62018-12-13 13:08:572380 FrameTreeNode* root = delegate_->GetFrameTree()->root();
2381 int nav_entry_id = pending_entry_->GetUniqueID();
2382
2383 // BackForwardCache:
2384 // Try to restore a document from the BackForwardCache.
2385 if (auto rfh = back_forward_cache_.RestoreDocument(nav_entry_id)) {
2386 root->render_manager()->RestoreFromBackForwardCache(std::move(rfh));
2387 CommitRestoreFromBackForwardCache();
2388 return;
2389 }
[email protected]72097fd02010-01-21 23:36:012390
[email protected]83c2e232011-10-07 21:36:462391 // If we were navigating to a slow-to-commit page, and the user performs
2392 // a session history navigation to the last committed page, RenderViewHost
2393 // will force the throbber to start, but WebKit will essentially ignore the
2394 // navigation, and won't send a message to stop the throbber. To prevent this
2395 // from happening, we drop the navigation here and stop the slow-to-commit
2396 // page from loading (which would normally happen during the navigation).
clamy3cb9bea92018-07-10 12:42:022397 if (pending_entry_index_ == last_committed_entry_index_ &&
arthursonzogni5c4c202d2017-04-25 23:41:272398 pending_entry_->restore_type() == RestoreType::NONE &&
2399 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
[email protected]ec6c05f2013-10-23 18:41:572400 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:122401
avi668f5232017-06-22 22:52:172402 // If an interstitial page is showing, we want to close it to get back to
2403 // what was showing before.
2404 //
2405 // There are two ways to get the interstitial page given a WebContents.
2406 // Because WebContents::GetInterstitialPage() returns null between the
2407 // interstitial's Show() method being called and the interstitial becoming
2408 // visible, while InterstitialPage::GetInterstitialPage() returns the
2409 // interstitial during that time, use the latter.
2410 InterstitialPage* interstitial =
2411 InterstitialPage::GetInterstitialPage(GetWebContents());
2412 if (interstitial)
2413 interstitial->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:122414
[email protected]83c2e232011-10-07 21:36:462415 DiscardNonCommittedEntries();
2416 return;
2417 }
2418
creisce0ef3572017-01-26 17:53:082419 // Compare FrameNavigationEntries to see which frames in the tree need to be
2420 // navigated.
clamy3cb9bea92018-07-10 12:42:022421 std::vector<std::unique_ptr<NavigationRequest>> same_document_loads;
2422 std::vector<std::unique_ptr<NavigationRequest>> different_document_loads;
creis4e2ecb72015-06-20 00:46:302423 if (GetLastCommittedEntry()) {
clamy3cb9bea92018-07-10 12:42:022424 FindFramesToNavigate(root, reload_type, &same_document_loads,
2425 &different_document_loads);
creis4e2ecb72015-06-20 00:46:302426 }
2427
2428 if (same_document_loads.empty() && different_document_loads.empty()) {
2429 // If we don't have any frames to navigate at this point, either
2430 // (1) there is no previous history entry to compare against, or
2431 // (2) we were unable to match any frames by name. In the first case,
2432 // doing a different document navigation to the root item is the only valid
2433 // thing to do. In the second case, we should have been able to find a
2434 // frame to navigate based on names if this were a same document
2435 // navigation, so we can safely assume this is the different document case.
clamy3cb9bea92018-07-10 12:42:022436 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422437 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572438 root, pending_entry_, pending_entry_->GetFrameEntry(root),
clamy3cb9bea92018-07-10 12:42:022439 reload_type, false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422440 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022441 if (!navigation_request) {
2442 // This navigation cannot start (e.g. the URL is invalid), delete the
2443 // pending NavigationEntry.
2444 DiscardPendingEntry(false);
2445 return;
2446 }
2447 different_document_loads.push_back(std::move(navigation_request));
creis4e2ecb72015-06-20 00:46:302448 }
2449
clamy3cb9bea92018-07-10 12:42:022450 // If an interstitial page is showing, the previous renderer is blocked and
2451 // cannot make new requests. Unblock (and disable) it to allow this
2452 // navigation to succeed. The interstitial will stay visible until the
2453 // resulting DidNavigate.
2454 // TODO(clamy): See if this can be removed now that PlzNavigate has shipped.
2455 // See https://crbug.com/849250
2456 if (delegate_->GetInterstitialPage()) {
2457 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
2458 ->CancelForNavigation();
2459 }
2460
2461 // This call does not support re-entrancy. See http://crbug.com/347742.
2462 CHECK(!in_navigate_to_pending_entry_);
2463 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:302464
2465 // Send all the same document frame loads before the different document loads.
clamy3cb9bea92018-07-10 12:42:022466 for (auto& item : same_document_loads) {
2467 FrameTreeNode* frame = item->frame_tree_node();
2468 frame->navigator()->Navigate(std::move(item), reload_type,
2469 pending_entry_->restore_type());
creis4e2ecb72015-06-20 00:46:302470 }
clamy3cb9bea92018-07-10 12:42:022471 for (auto& item : different_document_loads) {
2472 FrameTreeNode* frame = item->frame_tree_node();
2473 frame->navigator()->Navigate(std::move(item), reload_type,
2474 pending_entry_->restore_type());
creis4e2ecb72015-06-20 00:46:302475 }
clamy3cb9bea92018-07-10 12:42:022476
2477 in_navigate_to_pending_entry_ = false;
creis4e2ecb72015-06-20 00:46:302478}
2479
2480void NavigationControllerImpl::FindFramesToNavigate(
2481 FrameTreeNode* frame,
clamy3cb9bea92018-07-10 12:42:022482 ReloadType reload_type,
2483 std::vector<std::unique_ptr<NavigationRequest>>* same_document_loads,
2484 std::vector<std::unique_ptr<NavigationRequest>>* different_document_loads) {
creis4e2ecb72015-06-20 00:46:302485 DCHECK(pending_entry_);
2486 DCHECK_GE(last_committed_entry_index_, 0);
2487 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:272488 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
2489 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:302490 FrameNavigationEntry* old_item =
2491 GetLastCommittedEntry()->GetFrameEntry(frame);
2492 if (!new_item)
2493 return;
2494
2495 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:562496 // sequence number in the same SiteInstance. Newly restored items may not have
2497 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:302498 if (!old_item ||
2499 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:562500 (new_item->site_instance() != nullptr &&
2501 new_item->site_instance() != old_item->site_instance())) {
creis54131692016-08-12 18:32:252502 // Same document loads happen if the previous item has the same document
2503 // sequence number. Note that we should treat them as different document if
2504 // the destination RenderFrameHost (which is necessarily the current
2505 // RenderFrameHost for same document navigations) doesn't have a last
2506 // committed page. This case can happen for Ctrl+Back or after a renderer
2507 // crash.
creis4e2ecb72015-06-20 00:46:302508 if (old_item &&
2509 new_item->document_sequence_number() ==
creis54131692016-08-12 18:32:252510 old_item->document_sequence_number() &&
Avi Drissman2eb7a482017-11-30 04:36:312511 !frame->current_frame_host()->GetLastCommittedURL().is_empty()) {
clamy3cb9bea92018-07-10 12:42:022512 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422513 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572514 frame, pending_entry_, new_item, reload_type,
clamy3cb9bea92018-07-10 12:42:022515 true /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422516 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022517 if (navigation_request) {
2518 // Only add the request if was properly created. It's possible for the
2519 // creation to fail in certain cases, e.g. when the URL is invalid.
2520 same_document_loads->push_back(std::move(navigation_request));
2521 }
avib48cb312016-05-05 21:35:002522
2523 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
2524 // should continue on and navigate all child frames which have also
2525 // changed. This bug is the cause of <https://crbug.com/542299>, which is
2526 // a NC_IN_PAGE_NAVIGATION renderer kill.
2527 //
2528 // However, this bug is a bandaid over a deeper and worse problem. Doing a
2529 // pushState immediately after loading a subframe is a race, one that no
2530 // web page author expects. If we fix this bug, many large websites break.
2531 // For example, see <https://crbug.com/598043> and the spec discussion at
2532 // <https://github.com/whatwg/html/issues/1191>.
2533 //
2534 // For now, we accept this bug, and hope to resolve the race in a
2535 // different way that will one day allow us to fix this.
2536 return;
creis4e2ecb72015-06-20 00:46:302537 } else {
clamy3cb9bea92018-07-10 12:42:022538 std::unique_ptr<NavigationRequest> navigation_request =
Camille Lamy5193caa2018-10-12 11:59:422539 CreateNavigationRequestFromEntry(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572540 frame, pending_entry_, new_item, reload_type,
clamy3cb9bea92018-07-10 12:42:022541 false /* is_same_document_history_load */,
Camille Lamy5193caa2018-10-12 11:59:422542 false /* is_history_navigation_in_new_child */);
clamy3cb9bea92018-07-10 12:42:022543 if (navigation_request) {
2544 // Only add the request if was properly created. It's possible for the
2545 // creation to fail in certain cases, e.g. when the URL is invalid.
2546 different_document_loads->push_back(std::move(navigation_request));
2547 }
avib3b47ab2016-01-22 20:53:582548 // For a different document, the subframes will be destroyed, so there's
2549 // no need to consider them.
2550 return;
creis4e2ecb72015-06-20 00:46:302551 }
creis4e2ecb72015-06-20 00:46:302552 }
2553
2554 for (size_t i = 0; i < frame->child_count(); i++) {
clamy3cb9bea92018-07-10 12:42:022555 FindFramesToNavigate(frame->child_at(i), reload_type, same_document_loads,
creis4e2ecb72015-06-20 00:46:302556 different_document_loads);
2557 }
2558}
2559
clamy21718cc22018-06-13 13:34:242560void NavigationControllerImpl::NavigateWithoutEntry(
2561 const LoadURLParams& params) {
2562 // Find the appropriate FrameTreeNode.
2563 FrameTreeNode* node = nullptr;
2564 if (params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId ||
2565 !params.frame_name.empty()) {
2566 node = params.frame_tree_node_id != RenderFrameHost::kNoFrameTreeNodeId
2567 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
2568 : delegate_->GetFrameTree()->FindByName(params.frame_name);
2569 }
2570
2571 // If no FrameTreeNode was specified, navigate the main frame.
2572 if (!node)
2573 node = delegate_->GetFrameTree()->root();
2574
Camille Lamy5193caa2018-10-12 11:59:422575 // Compute overrides to the LoadURLParams for |override_user_agent|,
2576 // |should_replace_current_entry| and |has_user_gesture| that will be used
2577 // both in the creation of the NavigationEntry and the NavigationRequest.
2578 // Ideally, the LoadURLParams themselves would be updated, but since they are
2579 // passed as a const reference, this is not possible.
2580 // TODO(clamy): When we only create a NavigationRequest, move this to
2581 // CreateNavigationRequestFromLoadURLParams.
2582 bool override_user_agent = ShouldOverrideUserAgent(params.override_user_agent,
2583 GetLastCommittedEntry());
2584
2585 // Don't allow an entry replacement if there is no entry to replace.
2586 // http://crbug.com/457149
2587 bool should_replace_current_entry =
2588 params.should_replace_current_entry && entries_.size();
2589
2590 // Always propagate `has_user_gesture` on Android but only when the request
2591 // was originated by the renderer on other platforms. This is merely for
2592 // backward compatibility as browser process user gestures create confusion in
2593 // many tests.
2594 bool has_user_gesture = false;
2595#if defined(OS_ANDROID)
2596 has_user_gesture = params.has_user_gesture;
2597#else
2598 if (params.is_renderer_initiated)
2599 has_user_gesture = params.has_user_gesture;
2600#endif
2601
clamy21718cc22018-06-13 13:34:242602 // Javascript URLs should not create NavigationEntries. All other navigations
2603 // do, including navigations to chrome renderer debug URLs.
2604 std::unique_ptr<NavigationEntryImpl> entry;
2605 if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
Camille Lamy5193caa2018-10-12 11:59:422606 entry = CreateNavigationEntryFromLoadParams(
2607 node, params, override_user_agent, should_replace_current_entry,
2608 has_user_gesture);
clamy21718cc22018-06-13 13:34:242609 DiscardPendingEntry(false);
2610 SetPendingEntry(std::move(entry));
2611 }
2612
2613 // Renderer-debug URLs are sent to the renderer process immediately for
2614 // processing and don't need to create a NavigationRequest.
2615 // Note: this includes navigations to JavaScript URLs, which are considered
2616 // renderer-debug URLs.
2617 // Note: we intentionally leave the pending entry in place for renderer debug
2618 // URLs, unlike the cases below where we clear it if the navigation doesn't
2619 // proceed.
2620 if (IsRendererDebugURL(params.url)) {
2621 HandleRendererDebugURL(node, params.url);
2622 return;
2623 }
2624
2625 // Convert navigations to the current URL to a reload.
2626 // TODO(clamy): We should be using FrameTreeNode::IsMainFrame here instead of
2627 // relying on the frame tree node id from LoadURLParams. Unfortunately,
2628 // DevTools sometimes issues navigations to main frames that they do not
2629 // expect to see treated as reload, and it only works because they pass a
2630 // FrameTreeNode id in their LoadURLParams. Change this once they no longer do
2631 // that. See https://crbug.com/850926.
2632 ReloadType reload_type = ReloadType::NONE;
2633 if (ShouldTreatNavigationAsReload(
2634 params.url, pending_entry_->GetVirtualURL(),
2635 params.base_url_for_data_url, params.transition_type,
2636 params.frame_tree_node_id == RenderFrameHost::kNoFrameTreeNodeId,
2637 params.load_type ==
2638 NavigationController::LOAD_TYPE_HTTP_POST /* is_post */,
2639 false /* is_reload */, false /* is_navigation_to_existing_entry */,
2640 transient_entry_index_ != -1 /* has_interstitial */,
2641 GetLastCommittedEntry())) {
2642 reload_type = ReloadType::NORMAL;
2643 }
2644
2645 // navigation_ui_data should only be present for main frame navigations.
2646 DCHECK(node->IsMainFrame() || !params.navigation_ui_data);
2647
clamy21718cc22018-06-13 13:34:242648 DCHECK(pending_entry_);
Camille Lamy5193caa2018-10-12 11:59:422649 std::unique_ptr<NavigationRequest> request =
2650 CreateNavigationRequestFromLoadParams(
2651 node, params, override_user_agent, should_replace_current_entry,
Charlie Harrison8c113a32019-01-07 16:08:292652 has_user_gesture, NavigationDownloadPolicy::kAllow, reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572653 pending_entry_, pending_entry_->GetFrameEntry(node));
clamy21718cc22018-06-13 13:34:242654
2655 // If the navigation couldn't start, return immediately and discard the
2656 // pending NavigationEntry.
2657 if (!request) {
2658 DiscardPendingEntry(false);
2659 return;
2660 }
2661
Camille Lamy5193caa2018-10-12 11:59:422662#if DCHECK_IS_ON()
2663 // Safety check that NavigationRequest and NavigationEntry match.
2664 ValidateRequestMatchesEntry(request.get(), pending_entry_);
2665#endif
2666
clamy21718cc22018-06-13 13:34:242667 // If an interstitial page is showing, the previous renderer is blocked and
2668 // cannot make new requests. Unblock (and disable) it to allow this
2669 // navigation to succeed. The interstitial will stay visible until the
2670 // resulting DidNavigate.
2671 if (delegate_->GetInterstitialPage()) {
2672 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
2673 ->CancelForNavigation();
2674 }
2675
2676 // This call does not support re-entrancy. See http://crbug.com/347742.
2677 CHECK(!in_navigate_to_pending_entry_);
2678 in_navigate_to_pending_entry_ = true;
2679
2680 node->navigator()->Navigate(std::move(request), reload_type,
2681 RestoreType::NONE);
2682
2683 in_navigate_to_pending_entry_ = false;
2684}
2685
clamyea99ea12018-05-28 13:54:232686void NavigationControllerImpl::HandleRendererDebugURL(
2687 FrameTreeNode* frame_tree_node,
2688 const GURL& url) {
2689 if (!frame_tree_node->current_frame_host()->IsRenderFrameLive()) {
clamy21718cc22018-06-13 13:34:242690 // Any renderer-side debug URLs or javascript: URLs should be ignored if
2691 // the renderer process is not live, unless it is the initial navigation
2692 // of the tab.
clamyea99ea12018-05-28 13:54:232693 if (!IsInitialNavigation()) {
2694 DiscardNonCommittedEntries();
2695 return;
2696 }
2697 frame_tree_node->render_manager()->InitializeRenderFrameIfNecessary(
2698 frame_tree_node->current_frame_host());
2699 }
2700 frame_tree_node->current_frame_host()->HandleRendererDebugURL(url);
2701}
2702
clamy21718cc22018-06-13 13:34:242703std::unique_ptr<NavigationEntryImpl>
2704NavigationControllerImpl::CreateNavigationEntryFromLoadParams(
2705 FrameTreeNode* node,
Camille Lamy5193caa2018-10-12 11:59:422706 const LoadURLParams& params,
2707 bool override_user_agent,
2708 bool should_replace_current_entry,
2709 bool has_user_gesture) {
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:392710 // Browser initiated navigations might not have a blob_url_loader_factory set
2711 // in params even if the navigation is to a blob URL. If that happens, lookup
2712 // the correct url loader factory to use here.
2713 auto blob_url_loader_factory = params.blob_url_loader_factory;
2714 if (!blob_url_loader_factory && blink::BlobUtils::MojoBlobURLsEnabled() &&
2715 params.url.SchemeIsBlob()) {
2716 blob_url_loader_factory = ChromeBlobStorageContext::URLLoaderFactoryForUrl(
2717 GetBrowserContext(), params.url);
2718 }
2719
clamy21718cc22018-06-13 13:34:242720 std::unique_ptr<NavigationEntryImpl> entry;
2721
2722 // For subframes, create a pending entry with a corresponding frame entry.
2723 if (!node->IsMainFrame()) {
2724 DCHECK(GetLastCommittedEntry());
2725
2726 // Create an identical NavigationEntry with a new FrameNavigationEntry for
2727 // the target subframe.
2728 entry = GetLastCommittedEntry()->Clone();
Nasko Oskov18006bc2018-12-06 02:53:582729
2730 // TODO(nasko): Investigate what is the proper origin to supply here
2731 // or whether a valid one is required.
2732 url::Origin origin;
2733
clamy21718cc22018-06-13 13:34:242734 entry->AddOrUpdateFrameEntry(
2735 node, -1, -1, nullptr,
2736 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
Nasko Oskov18006bc2018-12-06 02:53:582737 params.url, origin, params.referrer, params.redirect_chain, PageState(),
2738 "GET", -1, blob_url_loader_factory);
clamy21718cc22018-06-13 13:34:242739 } else {
2740 // Otherwise, create a pending entry for the main frame.
2741
2742 // extra_headers in params are \n separated; navigation entries want \r\n.
2743 std::string extra_headers_crlf;
2744 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
2745 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
2746 params.url, params.referrer, params.transition_type,
2747 params.is_renderer_initiated, extra_headers_crlf, browser_context_,
Marijn Kruisselbrink0c87e6e2018-06-22 22:57:392748 blob_url_loader_factory));
clamy21718cc22018-06-13 13:34:242749 entry->set_source_site_instance(
2750 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
2751 entry->SetRedirectChain(params.redirect_chain);
2752 }
2753
2754 // Set the FTN ID (only used in non-site-per-process, for tests).
2755 entry->set_frame_tree_node_id(node->frame_tree_node_id());
Camille Lamy5193caa2018-10-12 11:59:422756 entry->set_should_replace_entry(should_replace_current_entry);
clamy21718cc22018-06-13 13:34:242757 entry->set_should_clear_history_list(params.should_clear_history_list);
Camille Lamy5193caa2018-10-12 11:59:422758 entry->SetIsOverridingUserAgent(override_user_agent);
2759 entry->set_has_user_gesture(has_user_gesture);
clamy21718cc22018-06-13 13:34:242760
clamy21718cc22018-06-13 13:34:242761 switch (params.load_type) {
2762 case LOAD_TYPE_DEFAULT:
2763 break;
2764 case LOAD_TYPE_HTTP_POST:
2765 entry->SetHasPostData(true);
2766 entry->SetPostData(params.post_data);
2767 break;
2768 case LOAD_TYPE_DATA:
2769 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
2770 entry->SetVirtualURL(params.virtual_url_for_data_url);
2771#if defined(OS_ANDROID)
2772 entry->SetDataURLAsString(params.data_url_as_string);
2773#endif
2774 entry->SetCanLoadLocalResources(params.can_load_local_resources);
2775 break;
2776 default:
2777 NOTREACHED();
2778 break;
2779 }
2780
2781 // TODO(clamy): NavigationEntry is meant for information that will be kept
2782 // after the navigation ended and therefore is not appropriate for
2783 // started_from_context_menu. Move started_from_context_menu to
2784 // NavigationUIData.
2785 entry->set_started_from_context_menu(params.started_from_context_menu);
2786
2787 return entry;
2788}
2789
clamyea99ea12018-05-28 13:54:232790std::unique_ptr<NavigationRequest>
Camille Lamy5193caa2018-10-12 11:59:422791NavigationControllerImpl::CreateNavigationRequestFromLoadParams(
2792 FrameTreeNode* node,
2793 const LoadURLParams& params,
2794 bool override_user_agent,
2795 bool should_replace_current_entry,
2796 bool has_user_gesture,
Charlie Harrison8c113a32019-01-07 16:08:292797 NavigationDownloadPolicy download_policy,
Camille Lamy5193caa2018-10-12 11:59:422798 ReloadType reload_type,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572799 NavigationEntryImpl* entry,
Camille Lamy5193caa2018-10-12 11:59:422800 FrameNavigationEntry* frame_entry) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572801 DCHECK_EQ(-1, GetIndexOfEntry(entry));
Camille Lamyb9ed3c52018-11-19 15:34:282802 DCHECK(frame_entry);
Nasko Oskov3c2f9e252019-01-10 17:45:532803 // All renderer-initiated navigations must have an initiator_origin.
2804 DCHECK(!params.is_renderer_initiated || params.initiator_origin.has_value());
Camille Lamyff7c4822018-11-07 15:42:512805
Camille Lamy5193caa2018-10-12 11:59:422806 GURL url_to_load;
2807 GURL virtual_url;
Camille Lamy2baa8022018-10-19 16:43:172808 // For main frames, rewrite the URL if necessary and compute the virtual URL
2809 // that should be shown in the address bar.
2810 if (node->IsMainFrame()) {
2811 bool reverse_on_redirect = false;
2812 RewriteUrlForNavigation(params.url, browser_context_, &url_to_load,
2813 &virtual_url, &reverse_on_redirect);
Camille Lamy5193caa2018-10-12 11:59:422814
Camille Lamy2baa8022018-10-19 16:43:172815 // For DATA loads, override the virtual URL.
2816 if (params.load_type == LOAD_TYPE_DATA)
2817 virtual_url = params.virtual_url_for_data_url;
Camille Lamy5193caa2018-10-12 11:59:422818
Camille Lamy2baa8022018-10-19 16:43:172819 if (virtual_url.is_empty())
2820 virtual_url = url_to_load;
2821
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572822 CHECK(virtual_url == entry->GetVirtualURL());
Camille Lamyb9ed3c52018-11-19 15:34:282823
2824 // This is a DCHECK and not a CHECK as URL rewrite has non-deterministic
2825 // behavior in the field: it is possible for two calls to
2826 // RewriteUrlForNavigation to return different results, leading to a
2827 // different URL in the NavigationRequest and FrameEntry. This will be fixed
2828 // once we remove the pending NavigationEntry, as we'll only make one call
2829 // to RewriteUrlForNavigation.
2830 DCHECK_EQ(url_to_load, frame_entry->url());
2831
Camille Lamy2baa8022018-10-19 16:43:172832 // TODO(clamy): In order to remove the pending NavigationEntry,
2833 // |virtual_url| and |reverse_on_redirect| should be stored in the
2834 // NavigationRequest.
2835 } else {
2836 url_to_load = params.url;
2837 virtual_url = params.url;
Camille Lamyf664f7622019-01-07 19:28:242838 CHECK(!frame_entry || url_to_load == frame_entry->url());
Camille Lamy2baa8022018-10-19 16:43:172839 }
Camille Lamy5193caa2018-10-12 11:59:422840
Ehsan Karamaddd9a4142018-12-04 20:38:202841 if (auto* rfh = node->current_frame_host()) {
2842 if (rfh->is_attaching_inner_delegate()) {
2843 // Avoid starting any new navigations since this node is now preparing for
2844 // attaching an inner delegate.
2845 return nullptr;
2846 }
2847 }
Camille Lamy5193caa2018-10-12 11:59:422848
Camille Lamy5193caa2018-10-12 11:59:422849 if (!IsValidURLForNavigation(node->IsMainFrame(), virtual_url, url_to_load))
2850 return nullptr;
2851
2852 // Determine if Previews should be used for the navigation.
2853 PreviewsState previews_state = PREVIEWS_UNSPECIFIED;
2854 if (!node->IsMainFrame()) {
2855 // For subframes, use the state of the top-level frame.
2856 previews_state = node->frame_tree()
2857 ->root()
2858 ->current_frame_host()
2859 ->last_navigation_previews_state();
2860 }
2861
Camille Lamy5193caa2018-10-12 11:59:422862 // This will be used to set the Navigation Timing API navigationStart
2863 // parameter for browser navigations in new tabs (intents, tabs opened through
2864 // "Open link in new tab"). If the navigation must wait on the current
2865 // RenderFrameHost to execute its BeforeUnload event, the navigation start
2866 // will be updated when the BeforeUnload ack is received.
2867 base::TimeTicks navigation_start = base::TimeTicks::Now();
2868
2869 FrameMsg_Navigate_Type::Value navigation_type =
2870 GetNavigationType(node->current_url(), // old_url
2871 url_to_load, // new_url
2872 reload_type, // reload_type
2873 entry, // entry
2874 *frame_entry, // frame_entry
2875 false); // is_same_document_history_load
2876
2877 // Create the NavigationParams based on |params|.
2878
2879 bool is_view_source_mode = virtual_url.SchemeIs(kViewSourceScheme);
Charlie Harrison8c113a32019-01-07 16:08:292880
2881 // Update |download_policy| if the virtual URL is view-source. Why do this
2882 // now? Possibly the URL could be rewritten to a view-source via some URL
2883 // handler.
2884 if (is_view_source_mode)
2885 download_policy = NavigationDownloadPolicy::kDisallowViewSource;
2886
Camille Lamy5193caa2018-10-12 11:59:422887 const GURL& history_url_for_data_url =
2888 params.base_url_for_data_url.is_empty() ? GURL() : virtual_url;
2889 CommonNavigationParams common_params(
Nasko Oskov93e7c55c2018-12-19 01:59:292890 url_to_load, params.initiator_origin, params.referrer,
2891 params.transition_type, navigation_type, download_policy,
2892 should_replace_current_entry, params.base_url_for_data_url,
2893 history_url_for_data_url, previews_state, navigation_start,
Camille Lamy5193caa2018-10-12 11:59:422894 params.load_type == LOAD_TYPE_HTTP_POST ? "POST" : "GET",
2895 params.post_data, base::Optional<SourceLocation>(),
2896 params.started_from_context_menu, has_user_gesture, InitiatorCSPInfo(),
Anthony Vallee-Dubois93a11672018-11-21 16:44:422897 params.href_translate, params.input_start);
Camille Lamy5193caa2018-10-12 11:59:422898
Nasko Oskovc36327d2019-01-03 23:23:042899 CommitNavigationParams commit_params(
Camille Lamy5193caa2018-10-12 11:59:422900 override_user_agent, params.redirect_chain, common_params.url,
2901 common_params.method, params.can_load_local_resources,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572902 frame_entry->page_state(), entry->GetUniqueID(),
Camille Lamy5193caa2018-10-12 11:59:422903 false /* is_history_navigation_in_new_child */,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572904 entry->GetSubframeUniqueNames(node), true /* intended_as_new_entry */,
Camille Lamy5193caa2018-10-12 11:59:422905 -1 /* pending_history_list_offset */,
2906 params.should_clear_history_list ? -1 : GetLastCommittedEntryIndex(),
2907 params.should_clear_history_list ? 0 : GetEntryCount(),
2908 is_view_source_mode, params.should_clear_history_list);
2909#if defined(OS_ANDROID)
2910 if (ValidateDataURLAsString(params.data_url_as_string)) {
Nasko Oskovc36327d2019-01-03 23:23:042911 commit_params.data_url_as_string = params.data_url_as_string->data();
Camille Lamy5193caa2018-10-12 11:59:422912 }
2913#endif
2914
Nasko Oskovc36327d2019-01-03 23:23:042915 commit_params.was_activated = params.was_activated;
Camille Lamy5193caa2018-10-12 11:59:422916
2917 // A form submission may happen here if the navigation is a renderer-initiated
2918 // form submission that took the OpenURL path.
2919 scoped_refptr<network::ResourceRequestBody> request_body = params.post_data;
2920
2921 // extra_headers in params are \n separated; NavigationRequests want \r\n.
2922 std::string extra_headers_crlf;
2923 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
2924 return NavigationRequest::CreateBrowserInitiated(
Nasko Oskovc36327d2019-01-03 23:23:042925 node, common_params, commit_params, !params.is_renderer_initiated,
Camille Lamy5193caa2018-10-12 11:59:422926 extra_headers_crlf, *frame_entry, entry, request_body,
2927 params.navigation_ui_data ? params.navigation_ui_data->Clone() : nullptr);
2928}
2929
2930std::unique_ptr<NavigationRequest>
2931NavigationControllerImpl::CreateNavigationRequestFromEntry(
clamyea99ea12018-05-28 13:54:232932 FrameTreeNode* frame_tree_node,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572933 NavigationEntryImpl* entry,
clamyea99ea12018-05-28 13:54:232934 FrameNavigationEntry* frame_entry,
2935 ReloadType reload_type,
2936 bool is_same_document_history_load,
Camille Lamy5193caa2018-10-12 11:59:422937 bool is_history_navigation_in_new_child) {
clamyea99ea12018-05-28 13:54:232938 GURL dest_url = frame_entry->url();
2939 Referrer dest_referrer = frame_entry->referrer();
Ryan Sturmc4da1992018-07-17 16:59:012940 if (reload_type == ReloadType::ORIGINAL_REQUEST_URL &&
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572941 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
clamyea99ea12018-05-28 13:54:232942 // We may have been redirected when navigating to the current URL.
2943 // Use the URL the user originally intended to visit as signaled by the
2944 // ReloadType, if it's valid and if a POST wasn't involved; the latter
Ryan Sturmc4da1992018-07-17 16:59:012945 // case avoids issues with sending data to the wrong page.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572946 dest_url = entry->GetOriginalRequestURL();
clamyea99ea12018-05-28 13:54:232947 dest_referrer = Referrer();
2948 }
2949
Ehsan Karamaddd9a4142018-12-04 20:38:202950 if (auto* rfh = frame_tree_node->current_frame_host()) {
2951 if (rfh->is_attaching_inner_delegate()) {
2952 // Avoid starting any new navigations since this node is now preparing for
2953 // attaching an inner delegate.
2954 return nullptr;
2955 }
2956 }
2957
Camille Lamy5193caa2018-10-12 11:59:422958 if (!IsValidURLForNavigation(frame_tree_node->IsMainFrame(),
Lucas Furukawa Gadani5553a1582019-01-08 18:55:572959 entry->GetVirtualURL(), dest_url)) {
clamyea99ea12018-05-28 13:54:232960 return nullptr;
2961 }
2962
2963 // Determine if Previews should be used for the navigation.
2964 PreviewsState previews_state = PREVIEWS_UNSPECIFIED;
2965 if (!frame_tree_node->IsMainFrame()) {
2966 // For subframes, use the state of the top-level frame.
2967 previews_state = frame_tree_node->frame_tree()
2968 ->root()
2969 ->current_frame_host()
2970 ->last_navigation_previews_state();
clamyea99ea12018-05-28 13:54:232971 }
2972
clamyea99ea12018-05-28 13:54:232973 // This will be used to set the Navigation Timing API navigationStart
2974 // parameter for browser navigations in new tabs (intents, tabs opened through
2975 // "Open link in new tab"). If the navigation must wait on the current
2976 // RenderFrameHost to execute its BeforeUnload event, the navigation start
2977 // will be updated when the BeforeUnload ack is received.
2978 base::TimeTicks navigation_start = base::TimeTicks::Now();
clamyea99ea12018-05-28 13:54:232979
2980 FrameMsg_Navigate_Type::Value navigation_type = GetNavigationType(
2981 frame_tree_node->current_url(), // old_url
2982 dest_url, // new_url
2983 reload_type, // reload_type
2984 entry, // entry
2985 *frame_entry, // frame_entry
2986 is_same_document_history_load); // is_same_document_history_load
Camille Lamy5193caa2018-10-12 11:59:422987
2988 // A form submission may happen here if the navigation is a
2989 // back/forward/reload navigation that does a form resubmission.
2990 scoped_refptr<network::ResourceRequestBody> request_body;
2991 std::string post_content_type;
2992 if (frame_entry->method() == "POST") {
2993 request_body = frame_entry->GetPostData(&post_content_type);
2994 // Might have a LF at end.
2995 post_content_type =
2996 base::TrimWhitespaceASCII(post_content_type, base::TRIM_ALL)
2997 .as_string();
2998 }
2999
3000 // Create the NavigationParams based on |entry| and |frame_entry|.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573001 CommonNavigationParams common_params = entry->ConstructCommonNavigationParams(
Camille Lamy5193caa2018-10-12 11:59:423002 *frame_entry, request_body, dest_url, dest_referrer, navigation_type,
3003 previews_state, navigation_start, base::TimeTicks() /* input_start */);
3004
3005 // TODO(clamy): |intended_as_new_entry| below should always be false once
3006 // Reload no longer leads to this being called for a pending NavigationEntry
3007 // of index -1.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573008 CommitNavigationParams commit_params = entry->ConstructCommitNavigationParams(
Nasko Oskovc36327d2019-01-03 23:23:043009 *frame_entry, common_params.url, common_params.method,
3010 is_history_navigation_in_new_child,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573011 entry->GetSubframeUniqueNames(frame_tree_node),
Nasko Oskovc36327d2019-01-03 23:23:043012 GetPendingEntryIndex() == -1 /* intended_as_new_entry */,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573013 GetIndexOfEntry(entry), GetLastCommittedEntryIndex(), GetEntryCount());
Nasko Oskovc36327d2019-01-03 23:23:043014 commit_params.post_content_type = post_content_type;
Camille Lamy5193caa2018-10-12 11:59:423015
clamyea99ea12018-05-28 13:54:233016 return NavigationRequest::CreateBrowserInitiated(
Nasko Oskovc36327d2019-01-03 23:23:043017 frame_tree_node, common_params, commit_params,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573018 !entry->is_renderer_initiated(), entry->extra_headers(), *frame_entry,
Camille Lamy5193caa2018-10-12 11:59:423019 entry, request_body, nullptr /* navigation_ui_data */);
clamyea99ea12018-05-28 13:54:233020}
3021
[email protected]d202a7c2012-01-04 07:53:473022void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:213023 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:273024 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:403025
[email protected]2db9bd72012-04-13 20:20:563026 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:403027 // location bar will have up-to-date information about the security style
3028 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:133029 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:403030
[email protected]7f924832014-08-09 05:57:223031 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:573032 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:463033
[email protected]b0f724c2013-09-05 04:21:133034 // TODO(avi): Remove. http://crbug.com/170921
3035 NotificationDetails notification_details =
3036 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:213037 NotificationService::current()->Notify(
3038 NOTIFICATION_NAV_ENTRY_COMMITTED,
3039 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:403040 notification_details);
initial.commit09911bf2008-07-26 23:55:293041}
3042
initial.commit09911bf2008-07-26 23:55:293043// static
[email protected]d202a7c2012-01-04 07:53:473044size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:233045 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
3046 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:213047 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:233048}
3049
[email protected]d202a7c2012-01-04 07:53:473050void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:223051 if (is_active && needs_reload_)
3052 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:293053}
3054
[email protected]d202a7c2012-01-04 07:53:473055void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:293056 if (!needs_reload_)
3057 return;
3058
Bo Liucdfa4b12018-11-06 00:21:443059 UMA_HISTOGRAM_ENUMERATION("Navigation.LoadIfNecessaryType",
3060 needs_reload_type_);
3061
initial.commit09911bf2008-07-26 23:55:293062 // Calling Reload() results in ignoring state, and not loading.
3063 // Explicitly use NavigateToPendingEntry so that the renderer uses the
3064 // cached state.
avicc872d7242015-08-19 21:26:343065 if (pending_entry_) {
clamy3cb9bea92018-07-10 12:42:023066 NavigateToExistingPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:343067 } else if (last_committed_entry_index_ != -1) {
arthursonzogni5c4c202d2017-04-25 23:41:273068 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:343069 pending_entry_index_ = last_committed_entry_index_;
clamy3cb9bea92018-07-10 12:42:023070 NavigateToExistingPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:343071 } else {
3072 // If there is something to reload, the successful reload will clear the
3073 // |needs_reload_| flag. Otherwise, just do it here.
3074 needs_reload_ = false;
3075 }
initial.commit09911bf2008-07-26 23:55:293076}
3077
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573078void NavigationControllerImpl::NotifyEntryChanged(NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:213079 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:093080 det.changed_entry = entry;
avi47179332015-05-20 21:01:113081 det.index = GetIndexOfEntry(
3082 NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:143083 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:293084}
3085
[email protected]d202a7c2012-01-04 07:53:473086void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:363087 RestoreType type) {
[email protected]a26023822011-12-29 00:23:553088 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:363089 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:293090
initial.commit09911bf2008-07-26 23:55:293091 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:293092}
[email protected]765b35502008-08-21 00:51:203093
[email protected]d202a7c2012-01-04 07:53:473094void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:453095 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:483096 DiscardTransientEntry();
3097}
3098
[email protected]d202a7c2012-01-04 07:53:473099void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:473100 if (transient_entry_index_ == -1)
3101 return;
[email protected]a0e69262009-06-03 19:08:483102 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:183103 if (last_committed_entry_index_ > transient_entry_index_)
3104 last_committed_entry_index_--;
arthursonzogni5c4c202d2017-04-25 23:41:273105 if (pending_entry_index_ > transient_entry_index_)
3106 pending_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:473107 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:203108}
3109
avi7c6f35e2015-05-08 17:52:383110int NavigationControllerImpl::GetEntryIndexWithUniqueID(
3111 int nav_entry_id) const {
3112 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
3113 if (entries_[i]->GetUniqueID() == nav_entry_id)
3114 return i;
3115 }
3116 return -1;
3117}
3118
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573119NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:473120 if (transient_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:283121 return nullptr;
avif16f85a72015-11-13 18:25:033122 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:473123}
[email protected]e1cd5452010-08-26 18:03:253124
avi25764702015-06-23 15:43:373125void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:573126 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:213127 // Discard any current transient entry, we can only have one at a time.
3128 int index = 0;
3129 if (last_committed_entry_index_ != -1)
3130 index = last_committed_entry_index_ + 1;
3131 DiscardTransientEntry();
avi25764702015-06-23 15:43:373132 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:363133 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
arthursonzogni5c4c202d2017-04-25 23:41:273134 if (pending_entry_index_ >= index)
3135 pending_entry_index_++;
[email protected]0b684262013-02-20 02:18:213136 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:223137 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:213138}
3139
[email protected]d202a7c2012-01-04 07:53:473140void NavigationControllerImpl::InsertEntriesFrom(
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573141 NavigationControllerImpl* source,
[email protected]e1cd5452010-08-26 18:03:253142 int max_index) {
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573143 DCHECK_LE(max_index, source->GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:253144 size_t insert_index = 0;
3145 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:353146 // When cloning a tab, copy all entries except interstitial pages.
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573147 if (source->entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:353148 // TODO(creis): Once we start sharing FrameNavigationEntries between
3149 // NavigationEntries, it will not be safe to share them with another tab.
3150 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:253151 entries_.insert(entries_.begin() + insert_index++,
Lucas Furukawa Gadani5553a1582019-01-08 18:55:573152 source->entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:253153 }
3154 }
arthursonzogni5c4c202d2017-04-25 23:41:273155 DCHECK(pending_entry_index_ == -1 ||
3156 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:253157}
[email protected]c5b88d82012-10-06 17:03:333158
3159void NavigationControllerImpl::SetGetTimestampCallbackForTest(
3160 const base::Callback<base::Time()>& get_timestamp_callback) {
3161 get_timestamp_callback_ = get_timestamp_callback;
3162}
[email protected]8ff00d72012-10-23 19:12:213163
Arthur Sonzogni620cec62018-12-13 13:08:573164// BackForwardCache:
3165void NavigationControllerImpl::CommitRestoreFromBackForwardCache() {
3166 // TODO(arthursonzogni): Extract the missing parts from RendererDidNavigate()
3167 // and reuse them.
3168 LoadCommittedDetails details;
3169 details.previous_entry_index = GetCurrentEntryIndex();
3170 details.entry = pending_entry_;
3171 details.type = NAVIGATION_TYPE_EXISTING_PAGE;
3172 details.is_main_frame = true;
3173 details.http_status_code = net::HTTP_OK;
3174 details.did_replace_entry = false;
3175 details.is_same_document = false;
3176
3177 last_committed_entry_index_ = pending_entry_index_;
3178 DiscardPendingEntry(false);
3179
3180 // Notify content/ embedder of the history update.
3181 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
3182 delegate_->NotifyNavigationEntryCommitted(details);
3183}
3184
[email protected]8ff00d72012-10-23 19:12:213185} // namespace content