blob: 9c5d095b87bd2f4fa521291f1a8072156a74b413 [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"
creisfafed882016-07-29 00:03:0942#include "base/debug/dump_without_crashing.h"
initial.commit09911bf2008-07-26 23:55:2943#include "base/logging.h"
dcheng9bfa5162016-04-09 01:00:5744#include "base/memory/ptr_util.h"
asvitkine30330812016-08-30 04:01:0845#include "base/metrics/histogram_macros.h"
[email protected]348fbaac2013-06-11 06:31:5146#include "base/strings/string_number_conversions.h" // Temporary
47#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0048#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3749#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4250#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5951#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2852#include "cc/base/switches.h"
rsleevic327b48f82015-04-30 02:03:2553#include "components/mime_util/mime_util.h"
jamescookda2505812015-03-20 18:01:1854#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3155#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4156#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0457#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4058#include "content/browser/frame_host/debug_urls.h"
59#include "content/browser/frame_host/interstitial_page_impl.h"
60#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2661#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
csharrison9a9142bc42016-03-01 17:24:0462#include "content/browser/frame_host/navigation_handle_impl.h"
creis4e2ecb72015-06-20 00:46:3063#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3264#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3365#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2266#include "content/common/frame_messages.h"
nickd30fd962015-07-27 21:51:0867#include "content/common/site_isolation_policy.h"
[email protected]0aed2f52011-03-23 18:06:3668#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1169#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1970#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4671#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0072#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3873#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1674#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5875#include "content/public/browser/render_widget_host.h"
76#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3477#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3878#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1979#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3880#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1081#include "content/public/common/content_features.h"
servolkf3955532015-05-16 00:01:5982#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3283#include "net/base/escape.h"
[email protected]9677a3c2012-12-22 04:18:5884#include "skia/ext/platform_canvas.h"
[email protected]cca6f392014-05-28 21:32:2685#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2986
[email protected]8ff00d72012-10-23 19:12:2187namespace content {
[email protected]e9ba4472008-09-14 15:42:4388namespace {
89
90// Invoked when entries have been pruned, or removed. For example, if the
91// current entries are [google, digg, yahoo], with the current entry google,
92// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4793void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4994 bool from_front,
95 int count) {
[email protected]8ff00d72012-10-23 19:12:2196 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4997 details.from_front = from_front;
98 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2199 NotificationService::current()->Notify(
100 NOTIFICATION_NAV_LIST_PRUNED,
101 Source<NavigationController>(nav_controller),
102 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:43103}
104
105// Ensure the given NavigationEntry has a valid state, so that WebKit does not
106// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39107//
[email protected]e9ba4472008-09-14 15:42:43108// An empty state is treated as a new navigation by WebKit, which would mean
109// losing the navigation entries and generating a new navigation entry after
110// this one. We don't want that. To avoid this we create a valid state which
111// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04112void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
113 if (!entry->GetPageState().IsValid())
114 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43115}
116
[email protected]e9ba4472008-09-14 15:42:43117// Configure all the NavigationEntries in entries for restore. This resets
118// the transition type to reload and makes sure the content state isn't empty.
119void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57120 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48121 RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43122 for (size_t i = 0; i < entries->size(); ++i) {
123 // Use a transition type of reload so that we don't incorrectly increase
124 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35125 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
toyoshim0df1d3a2016-09-09 09:52:48126 (*entries)[i]->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43127 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03128 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43129 }
130}
131
[email protected]bf70edce2012-06-20 22:32:22132// Determines whether or not we should be carrying over a user agent override
133// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21134bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22135 return last_entry && last_entry->GetIsOverridingUserAgent();
136}
137
[email protected]e9ba4472008-09-14 15:42:43138} // namespace
139
[email protected]d202a7c2012-01-04 07:53:47140// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29141
[email protected]23a918b2014-07-15 09:51:36142const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23143
[email protected]765b35502008-08-21 00:51:20144// static
[email protected]d202a7c2012-01-04 07:53:47145size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23146 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20147
[email protected]e6fec472013-05-14 05:29:02148// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20149// when testing.
150static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29151
[email protected]71fde352011-12-29 03:29:56152// static
dcheng9bfa5162016-04-09 01:00:57153std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
154 const GURL& url,
155 const Referrer& referrer,
156 ui::PageTransition transition,
157 bool is_renderer_initiated,
158 const std::string& extra_headers,
159 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05160 // Fix up the given URL before letting it be rewritten, so that any minor
161 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
162 GURL dest_url(url);
163 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
164 browser_context);
165
[email protected]71fde352011-12-29 03:29:56166 // Allow the browser URL handler to rewrite the URL. This will, for example,
167 // remove "view-source:" from the beginning of the URL to get the URL that
168 // will actually be loaded. This real URL won't be shown to the user, just
169 // used internally.
creis94a977f62015-02-18 23:51:05170 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56171 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31172 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56173 &loaded_url, browser_context, &reverse_on_redirect);
174
175 NavigationEntryImpl* entry = new NavigationEntryImpl(
176 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56177 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56178 -1,
179 loaded_url,
180 referrer,
[email protected]fcf75d42013-12-03 20:11:26181 base::string16(),
[email protected]71fde352011-12-29 03:29:56182 transition,
183 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05184 entry->SetVirtualURL(dest_url);
185 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56186 entry->set_update_virtual_url_with_url(reverse_on_redirect);
187 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57188 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56189}
190
[email protected]cdcb1dee2012-01-04 00:46:20191// static
192void NavigationController::DisablePromptOnRepost() {
193 g_check_for_repost = false;
194}
195
[email protected]c5b88d82012-10-06 17:03:33196base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
197 base::Time t) {
198 // If |t| is between the water marks, we're in a run of duplicates
199 // or just getting out of it, so increase the high-water mark to get
200 // a time that probably hasn't been used before and return it.
201 if (low_water_mark_ <= t && t <= high_water_mark_) {
202 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
203 return high_water_mark_;
204 }
205
206 // Otherwise, we're clear of the last duplicate run, so reset the
207 // water marks.
208 low_water_mark_ = high_water_mark_ = t;
209 return t;
210}
211
[email protected]d202a7c2012-01-04 07:53:47212NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57213 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19214 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37215 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20216 pending_entry_(NULL),
avi45a72532015-04-07 21:01:45217 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20218 last_committed_entry_index_(-1),
219 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47220 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57221 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29222 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22223 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57224 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09225 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28226 in_navigate_to_pending_entry_(false),
toyoshim0df1d3a2016-09-09 09:52:48227 pending_reload_(ReloadType::NONE),
[email protected]8cea7892013-02-06 06:49:31228 get_timestamp_callback_(base::Bind(&base::Time::Now)),
toyoshima63c2a62016-09-29 09:03:26229 screenshot_manager_(new NavigationEntryScreenshotManager(this)),
230 last_committed_reload_type_(ReloadType::NONE) {
[email protected]3d7474ff2011-07-27 17:47:37231 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29232}
233
[email protected]d202a7c2012-01-04 07:53:47234NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47235 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29236}
237
[email protected]d202a7c2012-01-04 07:53:47238WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57239 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32240}
241
[email protected]d202a7c2012-01-04 07:53:47242BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55243 return browser_context_;
244}
245
[email protected]d202a7c2012-01-04 07:53:47246void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30247 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36248 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57249 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57250 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55251 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57252 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14253 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57254
[email protected]ce3fa3c2009-04-20 19:55:57255 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03256 entries_.reserve(entries->size());
257 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36258 entries_.push_back(
259 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03260
261 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
262 // cleared out safely.
263 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57264
265 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36266 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57267}
268
[email protected]d202a7c2012-01-04 07:53:47269void NavigationControllerImpl::Reload(bool check_for_repost) {
toyoshim0df1d3a2016-09-09 09:52:48270 ReloadType type = ReloadType::NORMAL;
toyoshim8a956ec2016-05-19 07:24:36271 if (base::FeatureList::IsEnabled(
272 features::kNonValidatingReloadOnNormalReload)) {
toyoshim0df1d3a2016-09-09 09:52:48273 type = ReloadType::MAIN_RESOURCE;
toyoshim8a956ec2016-05-19 07:24:36274 }
275 ReloadInternal(check_for_repost, type);
[email protected]1ccb3568d2010-02-19 10:51:16276}
kinuko1be5023c2015-12-16 02:31:57277void NavigationControllerImpl::ReloadToRefreshContent(bool check_for_repost) {
toyoshim0df1d3a2016-09-09 09:52:48278 ReloadType type = ReloadType::NORMAL;
toyoshim86e34ec2016-02-25 08:56:10279 if (base::FeatureList::IsEnabled(
280 features::kNonValidatingReloadOnRefreshContent)) {
toyoshim0df1d3a2016-09-09 09:52:48281 type = ReloadType::MAIN_RESOURCE;
kinuko1be5023c2015-12-16 02:31:57282 }
toyoshimbada0dc92016-05-18 05:35:49283 ReloadInternal(check_for_repost, type);
kinuko1be5023c2015-12-16 02:31:57284}
toyoshim7dad4b1182016-04-01 14:28:05285void NavigationControllerImpl::ReloadBypassingCache(bool check_for_repost) {
toyoshim0df1d3a2016-09-09 09:52:48286 ReloadInternal(check_for_repost, ReloadType::BYPASSING_CACHE);
[email protected]1ccb3568d2010-02-19 10:51:16287}
[email protected]7c16976c2012-08-04 02:38:23288void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
toyoshim0df1d3a2016-09-09 09:52:48289 ReloadInternal(check_for_repost, ReloadType::ORIGINAL_REQUEST_URL);
[email protected]7c16976c2012-08-04 02:38:23290}
megjablond5ac7d52015-10-22 23:56:12291void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
toyoshim0df1d3a2016-09-09 09:52:48292 ReloadInternal(check_for_repost, ReloadType::DISABLE_LOFI_MODE);
megjablond5ac7d52015-10-22 23:56:12293}
[email protected]1ccb3568d2010-02-19 10:51:16294
[email protected]d202a7c2012-01-04 07:53:47295void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
296 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36297 if (transient_entry_index_ != -1) {
298 // If an interstitial is showing, treat a reload as a navigation to the
299 // transient entry's URL.
creis3da03872015-02-20 21:12:32300 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27301 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36302 return;
[email protected]6286a3792013-10-09 04:03:27303 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21304 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35305 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27306 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47307 return;
[email protected]669e0ba2012-08-30 23:57:36308 }
[email protected]cbab76d2008-10-13 22:42:47309
[email protected]59167c22013-06-03 18:07:32310 NavigationEntryImpl* entry = NULL;
311 int current_index = -1;
312
313 // If we are reloading the initial navigation, just use the current
314 // pending entry. Otherwise look up the current entry.
315 if (IsInitialNavigation() && pending_entry_) {
316 entry = pending_entry_;
317 // The pending entry might be in entries_ (e.g., after a Clone), so we
318 // should also update the current_index.
319 current_index = pending_entry_index_;
320 } else {
321 DiscardNonCommittedEntriesInternal();
322 current_index = GetCurrentEntryIndex();
323 if (current_index != -1) {
creis3da03872015-02-20 21:12:32324 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32325 }
[email protected]979a4bc2013-04-24 01:27:15326 }
[email protected]241db352013-04-22 18:04:05327
[email protected]59167c22013-06-03 18:07:32328 // If we are no where, then we can't reload. TODO(darin): We should add a
329 // CanReload method.
330 if (!entry)
331 return;
332
toyoshima63c2a62016-09-29 09:03:26333 // Check if previous navigation was a reload to track consecutive reload
334 // operations.
335 if (last_committed_reload_type_ != ReloadType::NONE) {
336 DCHECK(!last_committed_reload_time_.is_null());
337 base::Time now =
338 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
339 DCHECK_GT(now, last_committed_reload_time_);
340 if (!last_committed_reload_time_.is_null() &&
341 now > last_committed_reload_time_) {
342 base::TimeDelta delta = now - last_committed_reload_time_;
343 UMA_HISTOGRAM_MEDIUM_TIMES("Navigation.Reload.ReloadToReloadDuration",
344 delta);
345 if (last_committed_reload_type_ == ReloadType::MAIN_RESOURCE) {
346 UMA_HISTOGRAM_MEDIUM_TIMES(
347 "Navigation.Reload.ReloadMainResourceToReloadDuration", delta);
348 }
349 }
350 }
351
352 // Set ReloadType for |entry| in order to check it at commit time.
353 entry->set_reload_type(reload_type);
354
[email protected]cdcb1dee2012-01-04 00:46:20355 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32356 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30357 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07358 // they really want to do this. If they do, the dialog will call us back
359 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57360 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02361
[email protected]106a0812010-03-18 00:15:12362 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57363 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29364 } else {
[email protected]59167c22013-06-03 18:07:32365 if (!IsInitialNavigation())
366 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26367
[email protected]bcd904482012-02-01 01:54:22368 // If we are reloading an entry that no longer belongs to the current
369 // site instance (for example, refreshing a page for just installed app),
370 // the reload must happen in a new process.
371 // The new entry must have a new page_id and site instance, so it behaves
372 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30373 // Tabs that are discarded due to low memory conditions may not have a site
374 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32375 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21376 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10377 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
378 site_instance->GetProcess()->IsForGuestsOnly();
379 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30380 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22381 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46382 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22383 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
384 CreateNavigationEntry(
385 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37386 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26387
[email protected]11535962012-02-09 21:02:10388 // Mark the reload type as NO_RELOAD, so navigation will not be considered
389 // a reload in the renderer.
toyoshim0df1d3a2016-09-09 09:52:48390 reload_type = ReloadType::NONE;
[email protected]11535962012-02-09 21:02:10391
[email protected]e2caa032012-11-15 23:29:18392 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22393 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46394 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22395 } else {
[email protected]59167c22013-06-03 18:07:32396 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22397 pending_entry_index_ = current_index;
398
399 // The title of the page being reloaded might have been removed in the
400 // meanwhile, so we need to revert to the default title upon reload and
401 // invalidate the previously cached title (SetTitle will do both).
402 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26403 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22404
Sylvain Defresnec6ccc77d2014-09-19 10:19:35405 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22406 }
407
[email protected]1ccb3568d2010-02-19 10:51:16408 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29409 }
410}
411
[email protected]d202a7c2012-01-04 07:53:47412void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48413 DCHECK(pending_reload_ != ReloadType::NONE);
414 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12415}
416
[email protected]d202a7c2012-01-04 07:53:47417void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48418 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12419 NOTREACHED();
420 } else {
421 ReloadInternal(false, pending_reload_);
toyoshim0df1d3a2016-09-09 09:52:48422 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12423 }
424}
425
[email protected]cd2e15742013-03-08 04:08:31426bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09427 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11428}
429
creis10a4ab72015-10-13 17:22:40430bool NavigationControllerImpl::IsInitialBlankNavigation() const {
431 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48432 // we'll need to check for entry count 1 and restore_type NONE (to exclude
433 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40434 return IsInitialNavigation() && GetEntryCount() == 0;
435}
436
[email protected]d202a7c2012-01-04 07:53:47437NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
avib7348942015-12-25 20:57:10438 SiteInstance* instance,
439 int32_t page_id) const {
[email protected]7f0005a2009-04-15 03:25:11440 int index = GetEntryIndexWithPageID(instance, page_id);
avif16f85a72015-11-13 18:25:03441 return (index != -1) ? entries_[index].get() : nullptr;
[email protected]765b35502008-08-21 00:51:20442}
443
avi254eff02015-07-01 08:27:58444NavigationEntryImpl*
445NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
446 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03447 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58448}
449
avi25764702015-06-23 15:43:37450void NavigationControllerImpl::LoadEntry(
dcheng9bfa5162016-04-09 01:00:57451 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20452 // When navigating to a new page, we don't know for sure if we will actually
453 // end up leaving the current page. The new page load could for example
454 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36455 SetPendingEntry(std::move(entry));
toyoshim0df1d3a2016-09-09 09:52:48456 NavigateToPendingEntry(ReloadType::NONE);
[email protected]59167c22013-06-03 18:07:32457}
458
avi25764702015-06-23 15:43:37459void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57460 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47461 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37462 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21463 NotificationService::current()->Notify(
464 NOTIFICATION_NAV_ENTRY_PENDING,
465 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37466 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20467}
468
creis3da03872015-02-20 21:12:32469NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47470 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03471 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47472 if (pending_entry_)
473 return pending_entry_;
474 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20475}
476
creis3da03872015-02-20 21:12:32477NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19478 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03479 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32480 // The pending entry is safe to return for new (non-history), browser-
481 // initiated navigations. Most renderer-initiated navigations should not
482 // show the pending entry, to prevent URL spoof attacks.
483 //
484 // We make an exception for renderer-initiated navigations in new tabs, as
485 // long as no other page has tried to access the initial empty document in
486 // the new tab. If another page modifies this blank page, a URL spoof is
487 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32488 bool safe_to_show_pending =
489 pending_entry_ &&
490 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09491 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32492 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46493 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32494
495 // Also allow showing the pending entry for history navigations in a new tab,
496 // such as Ctrl+Back. In this case, no existing page is visible and no one
497 // can script the new tab before it commits.
498 if (!safe_to_show_pending &&
499 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09500 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32501 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34502 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32503 safe_to_show_pending = true;
504
505 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19506 return pending_entry_;
507 return GetLastCommittedEntry();
508}
509
[email protected]d202a7c2012-01-04 07:53:47510int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47511 if (transient_entry_index_ != -1)
512 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20513 if (pending_entry_index_ != -1)
514 return pending_entry_index_;
515 return last_committed_entry_index_;
516}
517
creis3da03872015-02-20 21:12:32518NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20519 if (last_committed_entry_index_ == -1)
520 return NULL;
avif16f85a72015-11-13 18:25:03521 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20522}
523
[email protected]d202a7c2012-01-04 07:53:47524bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57525 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25526 bool is_viewable_mime_type =
527 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59528 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27529 NavigationEntry* visible_entry = GetVisibleEntry();
530 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57531 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16532}
533
[email protected]d202a7c2012-01-04 07:53:47534int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55535 return last_committed_entry_index_;
536}
537
[email protected]d202a7c2012-01-04 07:53:47538int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25539 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55540 return static_cast<int>(entries_.size());
541}
542
creis3da03872015-02-20 21:12:32543NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25544 int index) const {
avi25764702015-06-23 15:43:37545 if (index < 0 || index >= GetEntryCount())
546 return nullptr;
547
avif16f85a72015-11-13 18:25:03548 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25549}
550
creis3da03872015-02-20 21:12:32551NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25552 int offset) const {
avi057ce1492015-06-29 15:59:47553 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20554}
555
[email protected]9ba14052012-06-22 23:50:03556int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46557 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03558}
559
[email protected]9677a3c2012-12-22 04:18:58560void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10561 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58562}
563
[email protected]1a3f5312013-04-26 21:00:10564void NavigationControllerImpl::SetScreenshotManager(
dcheng9bfa5162016-04-09 01:00:57565 std::unique_ptr<NavigationEntryScreenshotManager> manager) {
avi67081d0ae2015-07-27 18:25:46566 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36567 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46568 else
569 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58570}
571
[email protected]d202a7c2012-01-04 07:53:47572bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22573 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20574}
575
[email protected]d202a7c2012-01-04 07:53:47576bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22577 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20578}
579
[email protected]9ba14052012-06-22 23:50:03580bool NavigationControllerImpl::CanGoToOffset(int offset) const {
581 int index = GetIndexForOffset(offset);
582 return index >= 0 && index < GetEntryCount();
583}
584
[email protected]d202a7c2012-01-04 07:53:47585void NavigationControllerImpl::GoBack() {
toyoshim3af4d502016-03-30 12:38:12586 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
587 GoToIndex(GetIndexForOffset(-1));
[email protected]765b35502008-08-21 00:51:20588}
589
[email protected]d202a7c2012-01-04 07:53:47590void NavigationControllerImpl::GoForward() {
toyoshim3af4d502016-03-30 12:38:12591 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
592 GoToIndex(GetIndexForOffset(1));
[email protected]765b35502008-08-21 00:51:20593}
594
[email protected]d202a7c2012-01-04 07:53:47595void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20596 if (index < 0 || index >= static_cast<int>(entries_.size())) {
597 NOTREACHED();
598 return;
599 }
600
[email protected]cbab76d2008-10-13 22:42:47601 if (transient_entry_index_ != -1) {
602 if (index == transient_entry_index_) {
603 // Nothing to do when navigating to the transient.
604 return;
605 }
606 if (index > transient_entry_index_) {
607 // Removing the transient is goint to shift all entries by 1.
608 index--;
609 }
610 }
611
612 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20613
614 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25615 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35616 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51617 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35618 ui::PAGE_TRANSITION_FORWARD_BACK));
toyoshim0df1d3a2016-09-09 09:52:48619 NavigateToPendingEntry(ReloadType::NONE);
[email protected]765b35502008-08-21 00:51:20620}
621
[email protected]d202a7c2012-01-04 07:53:47622void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12623 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03624 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20625 return;
626
[email protected]9ba14052012-06-22 23:50:03627 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20628}
629
[email protected]41374f12013-07-24 02:49:28630bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
631 if (index == last_committed_entry_index_ ||
632 index == pending_entry_index_)
633 return false;
[email protected]6a13a6c2011-12-20 21:47:12634
[email protected]43032342011-03-21 14:10:31635 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28636 return true;
[email protected]cbab76d2008-10-13 22:42:47637}
638
[email protected]d202a7c2012-01-04 07:53:47639void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23640 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32641 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31642 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51643 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
644 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32645 }
646}
647
[email protected]d202a7c2012-01-04 07:53:47648void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47649 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21650 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35651 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47652 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47653 LoadURLParams params(url);
654 params.referrer = referrer;
655 params.transition_type = transition;
656 params.extra_headers = extra_headers;
657 LoadURLWithParams(params);
658}
659
660void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43661 TRACE_EVENT1("browser,navigation",
662 "NavigationControllerImpl::LoadURLWithParams",
663 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43664 if (HandleDebugURL(params.url, params.transition_type)) {
665 // If Telemetry is running, allow the URL load to proceed as if it's
666 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49667 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43668 cc::switches::kEnableGpuBenchmarking))
669 return;
670 }
[email protected]8bf1048012012-02-08 01:22:18671
[email protected]cf002332012-08-14 19:17:47672 // Checks based on params.load_type.
673 switch (params.load_type) {
674 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:43675 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47676 break;
677 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26678 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47679 NOTREACHED() << "Data load must use data scheme.";
680 return;
681 }
682 break;
683 default:
684 NOTREACHED();
685 break;
686 };
[email protected]e47ae9472011-10-13 19:48:34687
[email protected]e47ae9472011-10-13 19:48:34688 // The user initiated a load, we don't need to reload anymore.
689 needs_reload_ = false;
690
[email protected]cf002332012-08-14 19:17:47691 bool override = false;
692 switch (params.override_user_agent) {
693 case UA_OVERRIDE_INHERIT:
694 override = ShouldKeepOverride(GetLastCommittedEntry());
695 break;
696 case UA_OVERRIDE_TRUE:
697 override = true;
698 break;
699 case UA_OVERRIDE_FALSE:
700 override = false;
701 break;
702 default:
703 NOTREACHED();
704 break;
[email protected]d1ef81d2012-07-24 11:39:36705 }
706
dcheng9bfa5162016-04-09 01:00:57707 std::unique_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30708
709 // For subframes, create a pending entry with a corresponding frame entry.
710 int frame_tree_node_id = params.frame_tree_node_id;
711 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
712 FrameTreeNode* node =
713 params.frame_tree_node_id != -1
714 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
715 : delegate_->GetFrameTree()->FindByName(params.frame_name);
716 if (node && !node->IsMainFrame()) {
717 DCHECK(GetLastCommittedEntry());
718
719 // Update the FTN ID to use below in case we found a named frame.
720 frame_tree_node_id = node->frame_tree_node_id();
721
722 // In --site-per-process, create an identical NavigationEntry with a
723 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08724 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30725 entry = GetLastCommittedEntry()->Clone();
726 entry->SetPageID(-1);
naskoc7533512016-05-06 17:01:12727 entry->AddOrUpdateFrameEntry(
728 node, -1, -1, nullptr,
729 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
730 params.url, params.referrer, PageState(), "GET", -1);
creis4e2ecb72015-06-20 00:46:30731 }
732 }
creis6a93a812015-04-24 23:13:17733 }
creis4e2ecb72015-06-20 00:46:30734
735 // Otherwise, create a pending entry for the main frame.
736 if (!entry) {
737 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
738 params.url, params.referrer, params.transition_type,
739 params.is_renderer_initiated, params.extra_headers, browser_context_));
naskoc7533512016-05-06 17:01:12740 entry->set_source_site_instance(
741 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
creis4e2ecb72015-06-20 00:46:30742 }
naskoc7533512016-05-06 17:01:12743
creis4e2ecb72015-06-20 00:46:30744 // Set the FTN ID (only used in non-site-per-process, for tests).
745 entry->set_frame_tree_node_id(frame_tree_node_id);
[email protected]f8872902013-10-30 03:18:57746 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21747 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39748 // Don't allow an entry replacement if there is no entry to replace.
749 // http://crbug.com/457149
750 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18751 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13752 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47753 entry->SetIsOverridingUserAgent(override);
754 entry->set_transferred_global_request_id(
755 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36756
clamy8451aa62015-01-23 16:56:08757#if defined(OS_ANDROID)
758 if (params.intent_received_timestamp > 0) {
759 entry->set_intent_received_timestamp(
760 base::TimeTicks() +
761 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
762 }
qinmin976d4d92015-08-07 18:32:39763 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08764#endif
765
[email protected]cf002332012-08-14 19:17:47766 switch (params.load_type) {
767 case LOAD_TYPE_DEFAULT:
768 break;
lukasza477a5a22016-06-16 18:28:43769 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47770 entry->SetHasPostData(true);
lukasza477a5a22016-06-16 18:28:43771 entry->SetPostData(params.post_data);
[email protected]cf002332012-08-14 19:17:47772 break;
773 case LOAD_TYPE_DATA:
774 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
775 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03776#if defined(OS_ANDROID)
777 entry->SetDataURLAsString(params.data_url_as_string);
778#endif
[email protected]951a64832012-10-11 16:26:37779 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47780 break;
781 default:
782 NOTREACHED();
783 break;
784 };
[email protected]132e281a2012-07-31 18:32:44785
djacobo825aa6a82016-09-29 22:47:19786 entry->set_started_from_context_menu(params.started_from_context_menu);
dcheng36b6aec92015-12-26 06:16:36787 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44788}
789
creisb4dc9332016-03-14 21:39:19790bool NavigationControllerImpl::PendingEntryMatchesHandle(
791 NavigationHandleImpl* handle) const {
792 return pending_entry_ &&
793 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
794}
795
[email protected]d202a7c2012-01-04 07:53:47796bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32797 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22798 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
peary21b0f797b2016-09-28 17:28:33799 LoadCommittedDetails* details,
800 bool is_navigation_within_page) {
[email protected]cd2e15742013-03-08 04:08:31801 is_initial_navigation_ = false;
802
[email protected]0e8db942008-09-24 21:21:48803 // Save the previous state before we clobber it.
804 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51805 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55806 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48807 } else {
808 details->previous_url = GURL();
809 details->previous_entry_index = -1;
810 }
[email protected]ecd9d8702008-08-28 22:10:17811
fdegans9caf66a2015-07-30 21:10:42812 // If there is a pending entry at this point, it should have a SiteInstance,
813 // except for restored entries.
toyoshim0df1d3a2016-09-09 09:52:48814 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
815 pending_entry_->restore_type() != RestoreType::NONE);
816 if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
817 pending_entry_->set_restore_type(RestoreType::NONE);
818 }
[email protected]e9ba4472008-09-14 15:42:43819
creis865ad442016-03-15 16:43:09820 // The renderer tells us whether the navigation replaces the current entry.
821 details->did_replace_entry = params.should_replace_current_entry;
[email protected]bcd904482012-02-01 01:54:22822
[email protected]e9ba4472008-09-14 15:42:43823 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43824 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20825
[email protected]b9d4dfdc2013-08-08 00:25:12826 // is_in_page must be computed before the entry gets committed.
peary21b0f797b2016-09-28 17:28:33827 details->is_in_page = is_navigation_within_page;
[email protected]b9d4dfdc2013-08-08 00:25:12828
toyoshima63c2a62016-09-29 09:03:26829 // Save reload type and timestamp for a reload navigation to detect
830 // consecutive reloads when the next reload is requested.
831 if (PendingEntryMatchesHandle(rfh->navigation_handle())) {
832 if (pending_entry_->reload_type() != ReloadType::NONE) {
833 last_committed_reload_type_ = pending_entry_->reload_type();
834 last_committed_reload_time_ =
835 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
836 } else if (!pending_entry_->is_renderer_initiated() ||
837 params.gesture == NavigationGestureUser) {
838 last_committed_reload_type_ = ReloadType::NONE;
839 last_committed_reload_time_ = base::Time();
840 }
841 }
842
[email protected]0e8db942008-09-24 21:21:48843 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21844 case NAVIGATION_TYPE_NEW_PAGE:
creisf49dfc92016-07-26 17:05:18845 RendererDidNavigateToNewPage(rfh, params, details->is_in_page,
846 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43847 break;
[email protected]8ff00d72012-10-23 19:12:21848 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36849 details->did_replace_entry = details->is_in_page;
jam0576b132016-09-07 05:13:10850 RendererDidNavigateToExistingPage(rfh, params, details->is_in_page);
[email protected]e9ba4472008-09-14 15:42:43851 break;
[email protected]8ff00d72012-10-23 19:12:21852 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43853 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43854 break;
[email protected]8ff00d72012-10-23 19:12:21855 case NAVIGATION_TYPE_NEW_SUBFRAME:
creisf49dfc92016-07-26 17:05:18856 RendererDidNavigateNewSubframe(rfh, params, details->is_in_page,
857 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43858 break;
[email protected]8ff00d72012-10-23 19:12:21859 case NAVIGATION_TYPE_AUTO_SUBFRAME:
creis59d5a47cb2016-08-24 23:57:19860 if (!RendererDidNavigateAutoSubframe(rfh, params)) {
861 // In UseSubframeNavigationEntries mode, we won't send a notification
862 // about auto-subframe PageState during UpdateStateForFrame, since it
863 // looks like nothing has changed. Send it here at commit time instead.
864 if (SiteIsolationPolicy::UseSubframeNavigationEntries())
865 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:43866 return false;
creis59d5a47cb2016-08-24 23:57:19867 }
[email protected]e9ba4472008-09-14 15:42:43868 break;
[email protected]8ff00d72012-10-23 19:12:21869 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49870 // If a pending navigation was in progress, this canceled it. We should
871 // discard it and make sure it is removed from the URL bar. After that,
872 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43873 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49874 if (pending_entry_) {
875 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57876 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49877 }
[email protected]e9ba4472008-09-14 15:42:43878 return false;
879 default:
880 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20881 }
882
[email protected]688aa65c62012-09-28 04:32:22883 // At this point, we know that the navigation has just completed, so
884 // record the time.
885 //
886 // TODO(akalin): Use "sane time" as described in
887 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33888 base::Time timestamp =
889 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
890 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22891 << timestamp.ToInternalValue();
892
[email protected]f233e4232013-02-23 00:55:14893 // We should not have a pending entry anymore. Clear it again in case any
894 // error cases above forgot to do so.
895 DiscardNonCommittedEntriesInternal();
896
[email protected]e9ba4472008-09-14 15:42:43897 // All committed entries should have nonempty content state so WebKit doesn't
898 // get confused when we go back to them (see the function for details).
creisfafed882016-07-29 00:03:09899 if (!params.page_state.IsValid()) {
900 // Temporarily generate a minidump to diagnose https://crbug.com/568703.
901 base::debug::DumpWithoutCrashing();
902 NOTREACHED() << "Shouldn't see an empty PageState at commit.";
903 }
creis3da03872015-02-20 21:12:32904 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22905 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44906 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:12907
908 FrameNavigationEntry* frame_entry =
909 active_entry->GetFrameEntry(rfh->frame_tree_node());
nickd30fd962015-07-27 21:51:08910 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30911 // Update the frame-specific PageState.
creise062d542015-08-25 02:01:55912 // We may not find a frame_entry in some cases; ignore the PageState if so.
913 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
914 if (frame_entry)
nasko04a322f25a2016-09-01 00:00:34915 frame_entry->SetPageState(params.page_state);
creis4e2ecb72015-06-20 00:46:30916 } else {
917 active_entry->SetPageState(params.page_state);
918 }
[email protected]c1982ff2014-04-23 03:37:21919 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44920
[email protected]d6def3d2014-05-19 18:55:32921 // Use histogram to track memory impact of redirect chain because it's now
922 // not cleared for committed entries.
923 size_t redirect_chain_size = 0;
924 for (size_t i = 0; i < params.redirects.size(); ++i) {
925 redirect_chain_size += params.redirects[i].spec().length();
926 }
927 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
928
[email protected]97d8f0d2013-10-29 16:49:21929 // Once it is committed, we no longer need to track several pieces of state on
930 // the entry.
naskoc7533512016-05-06 17:01:12931 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:13932
[email protected]49bd30e62011-03-22 20:12:59933 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22934 // TODO(creis): This check won't pass for subframes until we create entries
935 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00936 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42937 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59938
[email protected]b26de072013-02-23 02:33:44939 // Remember the bindings the renderer process has at this point, so that
940 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32941 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44942
[email protected]e9ba4472008-09-14 15:42:43943 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00944 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00945 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31946 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53947
[email protected]93f230e02011-06-01 14:40:00948 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29949
creis03b48002015-11-04 00:54:56950 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
951 // one knows the latest NavigationEntry it is showing (whether it has
952 // committed anything in this navigation or not). This allows things like
953 // state and title updates from RenderFrames to apply to the latest relevant
954 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:38955 int nav_entry_id = active_entry->GetUniqueID();
956 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
957 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:43958 return true;
initial.commit09911bf2008-07-26 23:55:29959}
960
[email protected]8ff00d72012-10-23 19:12:21961NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32962 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22963 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38964 if (params.did_create_new_entry) {
965 // A new entry. We may or may not have a pending entry for the page, and
966 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00967 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38968 return NAVIGATION_TYPE_NEW_PAGE;
969 }
970
971 // When this is a new subframe navigation, we should have a committed page
972 // in which it's a subframe. This may not be the case when an iframe is
973 // navigated on a popup navigated to about:blank (the iframe would be
974 // written into the popup by script on the main page). For these cases,
975 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23976 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:38977 return NAVIGATION_TYPE_NAV_IGNORE;
978
979 // Valid subframe navigation.
980 return NAVIGATION_TYPE_NEW_SUBFRAME;
981 }
982
creis865ad442016-03-15 16:43:09983 // Cross-process location.replace navigations should be classified as New with
984 // replacement rather than ExistingPage, since it is not safe to reuse the
985 // NavigationEntry.
986 // TODO(creis): Have the renderer classify location.replace as
987 // did_create_new_entry for all cases and eliminate this special case. This
creis22a7b4c2016-04-28 07:20:30988 // requires updating several test expectations. See https://crbug.com/596707.
creis865ad442016-03-15 16:43:09989 if (!rfh->GetParent() && GetLastCommittedEntry() &&
990 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance() &&
991 params.should_replace_current_entry) {
992 return NAVIGATION_TYPE_NEW_PAGE;
993 }
994
avi7c6f35e2015-05-08 17:52:38995 // We only clear the session history when navigating to a new page.
996 DCHECK(!params.history_list_was_cleared);
997
avi39c1edd32015-06-04 20:06:00998 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38999 // All manual subframes would be did_create_new_entry and handled above, so
1000 // we know this is auto.
1001 if (GetLastCommittedEntry()) {
1002 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1003 } else {
1004 // We ignore subframes created in non-committed pages; we'd appreciate if
1005 // people stopped doing that.
1006 return NAVIGATION_TYPE_NAV_IGNORE;
1007 }
1008 }
1009
1010 if (params.nav_entry_id == 0) {
1011 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1012 // create a new page.
1013
1014 // Just like above in the did_create_new_entry case, it's possible to
1015 // scribble onto an uncommitted page. Again, there isn't any navigation
1016 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231017 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231018 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381019 return NAVIGATION_TYPE_NAV_IGNORE;
1020
avi259dc792015-07-07 04:42:361021 // This is history.replaceState(), history.reload(), or a client-side
1022 // redirect.
1023 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381024 }
1025
1026 if (pending_entry_ && pending_entry_index_ == -1 &&
1027 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1028 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421029 // didn't do a new navigation (params.did_create_new_entry). First check to
1030 // make sure Blink didn't treat a new cross-process navigation as inert, and
1031 // thus set params.did_create_new_entry to false. In that case, we must
1032 // treat it as NEW since the SiteInstance doesn't match the entry.
creis08557a22016-09-07 22:00:081033 if (!GetLastCommittedEntry() ||
creis5eb00a5f2016-08-24 03:50:281034 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
creis77c9aa32015-09-25 19:59:421035 return NAVIGATION_TYPE_NEW_PAGE;
1036
1037 // Otherwise, this happens when you press enter in the URL bar to reload. We
1038 // will create a pending entry, but Blink will convert it to a reload since
1039 // it's the same page and not create a new entry for it (the user doesn't
1040 // want to have a new back/forward entry when they do this). Therefore we
1041 // want to just ignore the pending entry and go back to where we were (the
1042 // "existing entry").
1043 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381044 return NAVIGATION_TYPE_SAME_PAGE;
1045 }
1046
1047 if (params.intended_as_new_entry) {
1048 // This was intended to be a navigation to a new entry but the pending entry
1049 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1050 // may not have a pending entry.
1051 return NAVIGATION_TYPE_EXISTING_PAGE;
1052 }
1053
1054 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1055 params.nav_entry_id == failed_pending_entry_id_) {
1056 // If the renderer was going to a new pending entry that got cleared because
1057 // of an error, this is the case of the user trying to retry a failed load
1058 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1059 // have a pending entry.
1060 return NAVIGATION_TYPE_EXISTING_PAGE;
1061 }
1062
1063 // Now we know that the notification is for an existing page. Find that entry.
1064 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1065 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441066 // The renderer has committed a navigation to an entry that no longer
1067 // exists. Because the renderer is showing that page, resurrect that entry.
1068 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381069 }
1070
avi7c6f35e2015-05-08 17:52:381071 // Since we weeded out "new" navigations above, we know this is an existing
1072 // (back/forward) navigation.
1073 return NAVIGATION_TYPE_EXISTING_PAGE;
1074}
1075
[email protected]d202a7c2012-01-04 07:53:471076void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321077 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221078 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
creisf49dfc92016-07-26 17:05:181079 bool is_in_page,
[email protected]a1b99262013-12-27 21:56:221080 bool replace_entry) {
dcheng9bfa5162016-04-09 01:00:571081 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181082 bool update_virtual_url = false;
1083
1084 // First check if this is an in-page navigation. If so, clone the current
1085 // entry instead of looking at the pending entry, because the pending entry
1086 // does not have any subframe history items.
1087 if (is_in_page && GetLastCommittedEntry()) {
1088 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
1089 params.frame_unique_name, params.item_sequence_number,
1090 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1091 params.url, params.referrer, params.method, params.post_id);
1092 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1093 frame_entry, true, rfh->frame_tree_node(),
1094 delegate_->GetFrameTree()->root());
1095
1096 // We expect |frame_entry| to be owned by |new_entry|. This should never
1097 // fail, because it's the main frame.
1098 CHECK(frame_entry->HasOneRef());
1099
1100 update_virtual_url = new_entry->update_virtual_url_with_url();
1101 }
1102
[email protected]6dd86ab2013-02-27 00:30:341103 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041104 // that was just loaded. Verify this by checking if the entry corresponds
1105 // to the current navigation handle. Note that in some tests the render frame
1106 // host does not have a valid handle. Additionally, coarsely check that:
1107 // 1. The SiteInstance hasn't been assigned to something else.
1108 // 2. The pending entry was intended as a new entry, rather than being a
1109 // history navigation that was interrupted by an unrelated,
1110 // renderer-initiated navigation.
1111 // TODO(csharrison): Investigate whether we can remove some of the coarser
1112 // checks.
1113 NavigationHandleImpl* handle = rfh->navigation_handle();
creisb4dc9332016-03-14 21:39:191114 DCHECK(handle);
creisf49dfc92016-07-26 17:05:181115
1116 if (!new_entry &&
1117 PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341118 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431119 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351120 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431121
[email protected]f1eb87a2011-05-06 17:49:411122 update_virtual_url = new_entry->update_virtual_url_with_url();
jamb981f482016-08-30 05:55:021123 new_entry->GetSSL() = handle->ssl_status();
creisf49dfc92016-07-26 17:05:181124 }
1125
1126 // For non-in-page commits with no matching pending entry, create a new entry.
1127 if (!new_entry) {
dcheng9bfa5162016-04-09 01:00:571128 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241129
1130 // Find out whether the new entry needs to update its virtual URL on URL
1131 // change and set up the entry accordingly. This is needed to correctly
1132 // update the virtual URL when replaceState is called after a pushState.
1133 GURL url = params.url;
1134 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431135 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1136 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241137 new_entry->set_update_virtual_url_with_url(needs_update);
1138
[email protected]f1eb87a2011-05-06 17:49:411139 // When navigating to a new page, give the browser URL handler a chance to
1140 // update the virtual URL based on the new URL. For example, this is needed
1141 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1142 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241143 update_virtual_url = needs_update;
jamb981f482016-08-30 05:55:021144 new_entry->GetSSL() = handle->ssl_status();
[email protected]e9ba4472008-09-14 15:42:431145 }
1146
wjmaclean7431bb22015-02-19 14:53:431147 // Don't use the page type from the pending entry. Some interstitial page
1148 // may have set the type to interstitial. Once we commit, however, the page
1149 // type must always be normal or error.
1150 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1151 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041152 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411153 if (update_virtual_url)
avi25764702015-06-23 15:43:371154 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251155 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511156 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251157 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331158 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431159 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231160 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221161 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431162
creis8b5cd4c2015-06-19 00:11:081163 // Update the FrameNavigationEntry for new main frame commits.
1164 FrameNavigationEntry* frame_entry =
1165 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431166 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081167 frame_entry->set_item_sequence_number(params.item_sequence_number);
1168 frame_entry->set_document_sequence_number(params.document_sequence_number);
clamy432acb22016-04-15 19:41:431169 frame_entry->set_method(params.method);
1170 frame_entry->set_post_id(params.post_id);
creis8b5cd4c2015-06-19 00:11:081171
[email protected]ff64b3e2014-05-31 04:07:331172 // history.pushState() is classified as a navigation to a new page, but
creisf49dfc92016-07-26 17:05:181173 // sets is_in_page to true. In this case, we already have the title and
1174 // favicon available, so set them immediately.
1175 if (is_in_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331176 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191177 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1178 }
[email protected]ff64b3e2014-05-31 04:07:331179
[email protected]60d6cca2013-04-30 08:47:131180 DCHECK(!params.history_list_was_cleared || !replace_entry);
1181 // The browser requested to clear the session history when it initiated the
1182 // navigation. Now we know that the renderer has updated its state accordingly
1183 // and it is safe to also clear the browser side history.
1184 if (params.history_list_was_cleared) {
1185 DiscardNonCommittedEntriesInternal();
1186 entries_.clear();
1187 last_committed_entry_index_ = -1;
1188 }
1189
dcheng36b6aec92015-12-26 06:16:361190 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431191}
1192
[email protected]d202a7c2012-01-04 07:53:471193void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321194 RenderFrameHostImpl* rfh,
jam0576b132016-09-07 05:13:101195 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
1196 bool is_in_page) {
[email protected]e9ba4472008-09-14 15:42:431197 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001198 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431199
naskoaf182192016-08-11 02:12:011200 // TODO(creis): Classify location.replace as NEW_PAGE instead of EXISTING_PAGE
1201 // in https://crbug.com/596707.
1202
avicbdc4c12015-07-01 16:07:111203 NavigationEntryImpl* entry;
jam0576b132016-09-07 05:13:101204 NavigationHandleImpl* handle = rfh->navigation_handle();
avicbdc4c12015-07-01 16:07:111205 if (params.intended_as_new_entry) {
1206 // This was intended as a new entry but the pending entry was lost in the
1207 // meanwhile and no new page was created. We are stuck at the last committed
1208 // entry.
1209 entry = GetLastCommittedEntry();
1210 } else if (params.nav_entry_id) {
1211 // This is a browser-initiated navigation (back/forward/reload).
1212 entry = GetEntryWithUniqueID(params.nav_entry_id);
jamd208b90ce2016-09-01 16:58:161213
1214 // Needed for the restore case, where the serialized NavigationEntry doesn't
jam9edf16002016-09-20 01:40:581215 // have the SSL state. Note that for in-page navigation, there's no
1216 // SSLStatus in the NavigationHandle so don't overwrite the existing entry's
1217 // SSLStatus.
1218 if (!is_in_page)
1219 entry->GetSSL() = handle->ssl_status();
avicbdc4c12015-07-01 16:07:111220 } else {
1221 // This is renderer-initiated. The only kinds of renderer-initated
1222 // navigations that are EXISTING_PAGE are reloads and location.replace,
1223 // which land us at the last committed entry.
1224 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101225
1226 // If this is an in-page navigation, then there's no SSLStatus in the
1227 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
1228 if (!is_in_page)
1229 entry->GetSSL() = handle->ssl_status();
avicbdc4c12015-07-01 16:07:111230 }
1231 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431232
[email protected]5ccd4dc2012-10-24 02:28:141233 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431234 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1235 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041236 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201237 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321238 if (entry->update_virtual_url_with_url())
1239 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141240
naskoaf182192016-08-11 02:12:011241 // The site instance will normally be the same except during session restore,
1242 // when no site instance will be assigned.
1243 DCHECK(entry->site_instance() == nullptr ||
1244 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431245
naskoaf182192016-08-11 02:12:011246 // Update the existing FrameNavigationEntry to ensure all of its members
1247 // reflect the parameters coming from the renderer process.
1248 entry->AddOrUpdateFrameEntry(
1249 rfh->frame_tree_node(), params.item_sequence_number,
1250 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1251 params.url, params.referrer, params.page_state, params.method,
1252 params.post_id);
creis22a7b4c2016-04-28 07:20:301253
[email protected]5ccd4dc2012-10-24 02:28:141254 // The redirected to page should not inherit the favicon from the previous
1255 // page.
avicba7c6e2016-09-15 04:15:261256 if (ui::PageTransitionIsRedirect(params.transition) && !is_in_page)
[email protected]91a4ff82012-10-29 20:29:481257 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141258
[email protected]e9ba4472008-09-14 15:42:431259 // The entry we found in the list might be pending if the user hit
1260 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591261 // list, we can just discard the pending pointer). We should also discard the
1262 // pending entry if it corresponds to a different navigation, since that one
1263 // is now likely canceled. If it is not canceled, we will treat it as a new
1264 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431265 //
1266 // Note that we need to use the "internal" version since we don't want to
1267 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491268 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391269
[email protected]80858db52009-10-15 00:35:181270 // If a transient entry was removed, the indices might have changed, so we
1271 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111272 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431273}
1274
[email protected]d202a7c2012-01-04 07:53:471275void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321276 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221277 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291278 // This classification says that we have a pending entry that's the same as
1279 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091280 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291281 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431282
creis77c9aa32015-09-25 19:59:421283 // If we classified this correctly, the SiteInstance should not have changed.
1284 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1285
[email protected]e9ba4472008-09-14 15:42:431286 // We assign the entry's unique ID to be that of the new one. Since this is
1287 // always the result of a user action, we want to dismiss infobars, etc. like
1288 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421289 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511290 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431291
[email protected]a0e69262009-06-03 19:08:481292 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431293 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1294 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321295 if (existing_entry->update_virtual_url_with_url())
1296 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041297 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481298
jamd208b90ce2016-09-01 16:58:161299 // If a user presses enter in the omnibox and the server redirects, the URL
1300 // might change (but it's still considered a SAME_PAGE navigation). So we must
1301 // update the SSL status.
1302 existing_entry->GetSSL() = rfh->navigation_handle()->ssl_status();
1303
naskoaf182192016-08-11 02:12:011304 // Update the existing FrameNavigationEntry to ensure all of its members
1305 // reflect the parameters coming from the renderer process.
1306 existing_entry->AddOrUpdateFrameEntry(
1307 rfh->frame_tree_node(), params.item_sequence_number,
1308 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1309 params.url, params.referrer, params.page_state, params.method,
1310 params.post_id);
[email protected]b77686522013-12-11 20:34:191311
[email protected]cbab76d2008-10-13 22:42:471312 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431313}
1314
[email protected]d202a7c2012-01-04 07:53:471315void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321316 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521317 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
creisf49dfc92016-07-26 17:05:181318 bool is_in_page,
creis1857908a2016-02-25 20:31:521319 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261320 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1321 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111322
[email protected]e9ba4472008-09-14 15:42:431323 // Manual subframe navigations just get the current entry cloned so the user
1324 // can go back or forward to it. The actual subframe information will be
1325 // stored in the page state for each of those entries. This happens out of
1326 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091327 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1328 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381329
dcheng9bfa5162016-04-09 01:00:571330 std::unique_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081331 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis22a7b4c2016-04-28 07:20:301332 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1333 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
1334 params.frame_unique_name, params.item_sequence_number,
naskoc7533512016-05-06 17:01:121335 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1336 params.url, params.referrer, params.method, params.post_id));
creisf49dfc92016-07-26 17:05:181337 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1338 frame_entry.get(), is_in_page, rfh->frame_tree_node(),
1339 delegate_->GetFrameTree()->root());
creise062d542015-08-25 02:01:551340
creis22a7b4c2016-04-28 07:20:301341 // TODO(creis): Update this to add the frame_entry if we can't find the one
1342 // to replace, which can happen due to a unique name change. See
1343 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1344 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381345 } else {
1346 new_entry = GetLastCommittedEntry()->Clone();
1347 }
1348
[email protected]36fc0392011-12-25 03:59:511349 new_entry->SetPageID(params.page_id);
creis1857908a2016-02-25 20:31:521350 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431351}
1352
[email protected]d202a7c2012-01-04 07:53:471353bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321354 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221355 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291356 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1357 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1358
[email protected]e9ba4472008-09-14 15:42:431359 // We're guaranteed to have a previously committed entry, and we now need to
1360 // handle navigation inside of a subframe in it without creating a new entry.
1361 DCHECK(GetLastCommittedEntry());
1362
creis913c63ce2016-07-16 19:52:521363 // For newly created subframes, we don't need to send a commit notification.
1364 // This is only necessary for history navigations in subframes.
1365 bool send_commit_notification = false;
1366
1367 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1368 // a history navigation. Update the last committed index accordingly.
1369 // If we don't recognize the |nav_entry_id|, it might be a recently pruned
1370 // entry. We'll handle it below.
avi98405c22015-05-21 20:47:061371 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511372 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
creis3cdc3b02015-05-29 23:00:471373 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061374 // Make sure that a subframe commit isn't changing the main frame's
1375 // origin. Otherwise the renderer process may be confused, leading to a
1376 // URL spoof. We can't check the path since that may change
1377 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:571378 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
1379 // about:blank, file, and unique origins are more subtle to get right.
1380 // We'll abstract out the relevant checks from IsURLInPageNavigation and
1381 // share them here. See https://crbug.com/618104.
1382 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
1383 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
1384 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
1385 dest_top_url.SchemeIsHTTPOrHTTPS() &&
1386 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511387 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1388 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061389 }
creis3cdc3b02015-05-29 23:00:471390
creis913c63ce2016-07-16 19:52:521391 // We only need to discard the pending entry in this history navigation
1392 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:061393 last_committed_entry_index_ = entry_index;
1394 DiscardNonCommittedEntriesInternal();
creis913c63ce2016-07-16 19:52:521395
1396 // History navigations should send a commit notification.
1397 send_commit_notification = true;
avi98405c22015-05-21 20:47:061398 }
[email protected]e9ba4472008-09-14 15:42:431399 }
[email protected]f233e4232013-02-23 00:55:141400
nickd30fd962015-07-27 21:51:081401 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121402 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1403 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121404 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081405 last_committed->AddOrUpdateFrameEntry(
creis22a7b4c2016-04-28 07:20:301406 rfh->frame_tree_node(), params.item_sequence_number,
naskoc7533512016-05-06 17:01:121407 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1408 params.url, params.referrer, params.page_state, params.method,
1409 params.post_id);
creis625a0c7d2015-03-24 23:17:121410 }
1411
creis913c63ce2016-07-16 19:52:521412 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:431413}
1414
[email protected]d202a7c2012-01-04 07:53:471415int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231416 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031417 for (size_t i = 0; i < entries_.size(); ++i) {
1418 if (entries_[i].get() == entry)
1419 return i;
1420 }
1421 return -1;
[email protected]765b35502008-08-21 00:51:201422}
1423
avidb7d1d22015-06-08 21:21:501424// There are two general cases where a navigation is "in page":
1425// 1. A fragment navigation, in which the url is kept the same except for the
1426// reference fragment.
1427// 2. A history API navigation (pushState and replaceState). This case is
1428// always in-page, but the urls are not guaranteed to match excluding the
1429// fragment. The relevant spec allows pushState/replaceState to any URL on
1430// the same origin.
1431// However, due to reloads, even identical urls are *not* guaranteed to be
1432// in-page navigations, we have to trust the renderer almost entirely.
1433// The one thing we do know is that cross-origin navigations will *never* be
1434// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1435// and assume the renderer is malicious if a cross-origin navigation claims to
1436// be in-page.
creisf164daa2016-06-07 00:17:051437//
1438// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1439// which are likely redundant with each other. Be careful about data URLs vs
1440// about:blank, both of which are unique origins and thus not considered equal.
[email protected]ce760d742012-08-30 22:31:101441bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121442 const GURL& url,
creisf164daa2016-06-07 00:17:051443 const url::Origin& origin,
[email protected]b9d4dfdc2013-08-08 00:25:121444 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231445 RenderFrameHost* rfh) const {
creis225a7432016-06-03 22:56:271446 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501447 GURL last_committed_url;
1448 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271449 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1450 // which might be empty in a new RenderFrameHost after a process swap.
1451 // Here, we care about the last committed URL in the FrameTreeNode,
1452 // regardless of which process it is in.
1453 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501454 } else {
1455 NavigationEntry* last_committed = GetLastCommittedEntry();
1456 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1457 // might Blink say that a navigation is in-page yet there be no last-
1458 // committed entry?
1459 if (!last_committed)
1460 return false;
1461 last_committed_url = last_committed->GetURL();
1462 }
1463
1464 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271465 const url::Origin& committed_origin =
1466 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501467 bool is_same_origin = last_committed_url.is_empty() ||
1468 // TODO(japhet): We should only permit navigations
1469 // originating from about:blank to be in-page if the
1470 // about:blank is the first document that frame loaded.
1471 // We don't have sufficient information to identify
1472 // that case at the moment, so always allow about:blank
1473 // for now.
1474 last_committed_url == GURL(url::kAboutBlankURL) ||
1475 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051476 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501477 !prefs.web_security_enabled ||
1478 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471479 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501480 if (!is_same_origin && renderer_says_in_page) {
1481 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1482 bad_message::NC_IN_PAGE_NAVIGATION);
1483 }
1484 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431485}
1486
[email protected]d202a7c2012-01-04 07:53:471487void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501488 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471489 const NavigationControllerImpl& source =
1490 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571491 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551492 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571493
[email protected]a26023822011-12-29 00:23:551494 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571495 return; // Nothing new to do.
1496
1497 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551498 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571499
[email protected]fdac6ade2013-07-20 01:06:301500 for (SessionStorageNamespaceMap::const_iterator it =
1501 source.session_storage_namespace_map_.begin();
1502 it != source.session_storage_namespace_map_.end();
1503 ++it) {
1504 SessionStorageNamespaceImpl* source_namespace =
1505 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1506 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1507 }
[email protected]4e6419c2010-01-15 04:50:341508
toyoshim0df1d3a2016-09-09 09:52:481509 FinishRestore(source.last_committed_entry_index_,
1510 RestoreType::CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571511
1512 // Copy the max page id map from the old tab to the new tab. This ensures
1513 // that new and existing navigations in the tab's current SiteInstances
1514 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571515 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571516}
1517
[email protected]d202a7c2012-01-04 07:53:471518void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571519 NavigationController* temp,
1520 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161521 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011522 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161523
[email protected]d202a7c2012-01-04 07:53:471524 NavigationControllerImpl* source =
1525 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251526
avi2b177592014-12-10 02:08:021527 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011528 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251529
[email protected]474f8512013-05-31 22:31:161530 // We now have one entry, possibly with a new pending entry. Ensure that
1531 // adding the entries from source won't put us over the limit.
1532 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571533 if (!replace_entry)
1534 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251535
[email protected]47e020a2010-10-15 14:43:371536 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021537 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161538 // since it has not committed in source.
1539 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251540 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551541 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251542 else
1543 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571544
1545 // Ignore the source's current entry if merging with replacement.
1546 // TODO(davidben): This should preserve entries forward of the current
1547 // too. http://crbug.com/317872
1548 if (replace_entry && max_source_index > 0)
1549 max_source_index--;
1550
[email protected]47e020a2010-10-15 14:43:371551 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251552
1553 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551554 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141555
avi2b177592014-12-10 02:08:021556 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1557 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571558
avi2b177592014-12-10 02:08:021559 // Copy the max page id map from the old tab to the new tab. This ensures that
1560 // new and existing navigations in the tab's current SiteInstances are
1561 // identified properly.
creis3da03872015-02-20 21:12:321562 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avib7348942015-12-25 20:57:101563 int32_t site_max_page_id =
avi2b177592014-12-10 02:08:021564 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571565 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021566 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1567 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421568 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251569}
1570
[email protected]79368982013-11-13 01:11:011571bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161572 // If there is no last committed entry, we cannot prune. Even if there is a
1573 // pending entry, it may not commit, leaving this WebContents blank, despite
1574 // possibly giving it new entries via CopyStateFromAndPrune.
1575 if (last_committed_entry_index_ == -1)
1576 return false;
[email protected]9350602e2013-02-26 23:27:441577
[email protected]474f8512013-05-31 22:31:161578 // We cannot prune if there is a pending entry at an existing entry index.
1579 // It may not commit, so we have to keep the last committed entry, and thus
1580 // there is no sensible place to keep the pending entry. It is ok to have
1581 // a new pending entry, which can optionally commit as a new navigation.
1582 if (pending_entry_index_ != -1)
1583 return false;
1584
1585 // We should not prune if we are currently showing a transient entry.
1586 if (transient_entry_index_ != -1)
1587 return false;
1588
1589 return true;
1590}
1591
[email protected]79368982013-11-13 01:11:011592void NavigationControllerImpl::PruneAllButLastCommitted() {
1593 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161594
avi2b177592014-12-10 02:08:021595 DCHECK_EQ(0, last_committed_entry_index_);
1596 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441597
avi2b177592014-12-10 02:08:021598 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1599 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441600}
1601
[email protected]79368982013-11-13 01:11:011602void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161603 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011604 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261605
[email protected]474f8512013-05-31 22:31:161606 // Erase all entries but the last committed entry. There may still be a
1607 // new pending entry after this.
1608 entries_.erase(entries_.begin(),
1609 entries_.begin() + last_committed_entry_index_);
1610 entries_.erase(entries_.begin() + 1, entries_.end());
1611 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261612}
1613
[email protected]15f46dc2013-01-24 05:40:241614void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101615 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241616}
1617
[email protected]d1198fd2012-08-13 22:50:191618void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301619 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211620 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191621 if (!session_storage_namespace)
1622 return;
1623
1624 // We can't overwrite an existing SessionStorage without violating spec.
1625 // Attempts to do so may give a tab access to another tab's session storage
1626 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301627 bool successful_insert = session_storage_namespace_map_.insert(
1628 make_pair(partition_id,
1629 static_cast<SessionStorageNamespaceImpl*>(
1630 session_storage_namespace)))
1631 .second;
1632 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191633}
1634
avib7348942015-12-25 20:57:101635void NavigationControllerImpl::SetMaxRestoredPageID(int32_t max_id) {
[email protected]71fde352011-12-29 03:29:561636 max_restored_page_id_ = max_id;
1637}
1638
avib7348942015-12-25 20:57:101639int32_t NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561640 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551641}
1642
[email protected]aa62afd2014-04-22 19:22:461643bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461644 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101645 !GetLastCommittedEntry() &&
1646 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461647}
1648
[email protected]a26023822011-12-29 00:23:551649SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301650NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1651 std::string partition_id;
1652 if (instance) {
1653 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1654 // this if statement so |instance| must not be NULL.
1655 partition_id =
1656 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1657 browser_context_, instance->GetSiteURL());
1658 }
[email protected]d1198fd2012-08-13 22:50:191659
[email protected]fdac6ade2013-07-20 01:06:301660 // TODO(ajwong): Should this use the |partition_id| directly rather than
1661 // re-lookup via |instance|? http://crbug.com/142685
1662 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031663 BrowserContext::GetStoragePartition(browser_context_, instance);
1664 DOMStorageContextWrapper* context_wrapper =
1665 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1666
1667 SessionStorageNamespaceMap::const_iterator it =
1668 session_storage_namespace_map_.find(partition_id);
1669 if (it != session_storage_namespace_map_.end()) {
1670 // Ensure that this namespace actually belongs to this partition.
1671 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1672 IsFromContext(context_wrapper));
1673 return it->second.get();
1674 }
1675
1676 // Create one if no one has accessed session storage for this partition yet.
[email protected]fdac6ade2013-07-20 01:06:301677 SessionStorageNamespaceImpl* session_storage_namespace =
michaelnbacbcbd2016-02-09 00:32:031678 new SessionStorageNamespaceImpl(context_wrapper);
[email protected]fdac6ade2013-07-20 01:06:301679 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1680
1681 return session_storage_namespace;
1682}
1683
1684SessionStorageNamespace*
1685NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1686 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1687 return GetSessionStorageNamespace(NULL);
1688}
1689
1690const SessionStorageNamespaceMap&
1691NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1692 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551693}
[email protected]d202a7c2012-01-04 07:53:471694
1695bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561696 return needs_reload_;
1697}
[email protected]a26023822011-12-29 00:23:551698
[email protected]46bb5e9c2013-10-03 22:16:471699void NavigationControllerImpl::SetNeedsReload() {
1700 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541701
1702 if (last_committed_entry_index_ != -1) {
1703 entries_[last_committed_entry_index_]->SetTransitionType(
1704 ui::PAGE_TRANSITION_RELOAD);
1705 }
[email protected]46bb5e9c2013-10-03 22:16:471706}
1707
[email protected]d202a7c2012-01-04 07:53:471708void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551709 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121710 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311711
1712 DiscardNonCommittedEntries();
1713
1714 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121715 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311716 last_committed_entry_index_--;
1717}
1718
[email protected]d202a7c2012-01-04 07:53:471719void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471720 bool transient = transient_entry_index_ != -1;
1721 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291722
[email protected]cbab76d2008-10-13 22:42:471723 // If there was a transient entry, invalidate everything so the new active
1724 // entry state is shown.
1725 if (transient) {
[email protected]7f924832014-08-09 05:57:221726 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471727 }
initial.commit09911bf2008-07-26 23:55:291728}
1729
creis3da03872015-02-20 21:12:321730NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251731 return pending_entry_;
1732}
1733
[email protected]d202a7c2012-01-04 07:53:471734int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551735 return pending_entry_index_;
1736}
1737
avi25764702015-06-23 15:43:371738void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:571739 std::unique_ptr<NavigationEntryImpl> entry,
1740 bool replace) {
mastiz7eddb5f72016-06-23 09:52:451741 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
1742 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:201743
avi5cad4912015-06-19 05:25:441744 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1745 // need to keep continuity with the pending entry, so copy the pending entry's
1746 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1747 // then the renderer navigated on its own, independent of the pending entry,
1748 // so don't copy anything.
1749 if (pending_entry_ && pending_entry_index_ == -1)
1750 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201751
[email protected]cbab76d2008-10-13 22:42:471752 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201753
1754 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221755
1756 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181757 if (replace && current_size > 0) {
avib7348942015-12-25 20:57:101758 int32_t page_id = entry->GetPageID();
creisee17e932015-07-17 17:56:221759
dcheng36b6aec92015-12-26 06:16:361760 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221761
1762 // This is a new page ID, so we need everybody to know about it.
1763 delegate_->UpdateMaxPageID(page_id);
1764 return;
1765 }
[email protected]765b35502008-08-21 00:51:201766
creis37979a62015-08-04 19:48:181767 // We shouldn't see replace == true when there's no committed entries.
1768 DCHECK(!replace);
1769
[email protected]765b35502008-08-21 00:51:201770 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451771 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311772 // last_committed_entry_index_ must be updated here since calls to
1773 // NotifyPrunedEntries() below may re-enter and we must make sure
1774 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491775 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311776 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491777 num_pruned++;
[email protected]765b35502008-08-21 00:51:201778 entries_.pop_back();
1779 current_size--;
1780 }
[email protected]c12bf1a12008-09-17 16:28:491781 if (num_pruned > 0) // Only notify if we did prune something.
1782 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201783 }
1784
[email protected]944822b2012-03-02 20:57:251785 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201786
avib7348942015-12-25 20:57:101787 int32_t page_id = entry->GetPageID();
dcheng36b6aec92015-12-26 06:16:361788 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201789 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431790
1791 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371792 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291793}
1794
[email protected]944822b2012-03-02 20:57:251795void NavigationControllerImpl::PruneOldestEntryIfFull() {
1796 if (entries_.size() >= max_entry_count()) {
1797 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021798 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251799 RemoveEntryAtIndex(0);
1800 NotifyPrunedEntries(this, true, 1);
1801 }
1802}
1803
[email protected]d202a7c2012-01-04 07:53:471804void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011805 needs_reload_ = false;
1806
[email protected]83c2e232011-10-07 21:36:461807 // If we were navigating to a slow-to-commit page, and the user performs
1808 // a session history navigation to the last committed page, RenderViewHost
1809 // will force the throbber to start, but WebKit will essentially ignore the
1810 // navigation, and won't send a message to stop the throbber. To prevent this
1811 // from happening, we drop the navigation here and stop the slow-to-commit
1812 // page from loading (which would normally happen during the navigation).
1813 if (pending_entry_index_ != -1 &&
1814 pending_entry_index_ == last_committed_entry_index_ &&
toyoshim0df1d3a2016-09-09 09:52:481815 (entries_[pending_entry_index_]->restore_type() == RestoreType::NONE) &&
[email protected]36fc0392011-12-25 03:59:511816 (entries_[pending_entry_index_]->GetTransitionType() &
toyoshim0df1d3a2016-09-09 09:52:481817 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571818 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121819
1820 // If an interstitial page is showing, we want to close it to get back
1821 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571822 if (delegate_->GetInterstitialPage())
1823 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121824
[email protected]83c2e232011-10-07 21:36:461825 DiscardNonCommittedEntries();
1826 return;
1827 }
1828
[email protected]6a13a6c2011-12-20 21:47:121829 // If an interstitial page is showing, the previous renderer is blocked and
1830 // cannot make new requests. Unblock (and disable) it to allow this
1831 // navigation to succeed. The interstitial will stay visible until the
1832 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571833 if (delegate_->GetInterstitialPage()) {
1834 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131835 CancelForNavigation();
1836 }
[email protected]6a13a6c2011-12-20 21:47:121837
initial.commit09911bf2008-07-26 23:55:291838 // For session history navigations only the pending_entry_index_ is set.
1839 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341840 CHECK_NE(pending_entry_index_, -1);
avif16f85a72015-11-13 18:25:031841 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291842 }
1843
creiscf40d9c2015-09-11 18:20:541844 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1845 // renderer process is not live, unless it is the initial navigation of the
1846 // tab.
1847 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1848 // TODO(creis): Find the RVH for the correct frame.
1849 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1850 !IsInitialNavigation()) {
1851 DiscardNonCommittedEntries();
1852 return;
1853 }
1854 }
1855
[email protected]40fd3032014-02-28 22:16:281856 // This call does not support re-entrancy. See http://crbug.com/347742.
1857 CHECK(!in_navigate_to_pending_entry_);
1858 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301859 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281860 in_navigate_to_pending_entry_ = false;
1861
1862 if (!success)
[email protected]cbab76d2008-10-13 22:42:471863 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291864}
1865
creis4e2ecb72015-06-20 00:46:301866bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1867 ReloadType reload_type) {
1868 DCHECK(pending_entry_);
1869 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1870
1871 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1872 // navigate the main frame or use the main frame's FrameNavigationEntry to
1873 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081874 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301875 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1876 FrameTreeNode* frame = root;
1877 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1878 if (ftn_id != -1) {
1879 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1880 DCHECK(frame);
1881 }
1882 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1883 reload_type, false);
1884 }
1885
1886 // In --site-per-process, we compare FrameNavigationEntries to see which
1887 // frames in the tree need to be navigated.
1888 FrameLoadVector same_document_loads;
1889 FrameLoadVector different_document_loads;
1890 if (GetLastCommittedEntry()) {
1891 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1892 }
1893
1894 if (same_document_loads.empty() && different_document_loads.empty()) {
1895 // If we don't have any frames to navigate at this point, either
1896 // (1) there is no previous history entry to compare against, or
1897 // (2) we were unable to match any frames by name. In the first case,
1898 // doing a different document navigation to the root item is the only valid
1899 // thing to do. In the second case, we should have been able to find a
1900 // frame to navigate based on names if this were a same document
1901 // navigation, so we can safely assume this is the different document case.
1902 different_document_loads.push_back(
1903 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1904 }
1905
1906 // If all the frame loads fail, we will discard the pending entry.
1907 bool success = false;
1908
1909 // Send all the same document frame loads before the different document loads.
1910 for (const auto& item : same_document_loads) {
1911 FrameTreeNode* frame = item.first;
1912 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1913 reload_type, true);
1914 }
1915 for (const auto& item : different_document_loads) {
1916 FrameTreeNode* frame = item.first;
1917 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1918 reload_type, false);
1919 }
1920 return success;
1921}
1922
1923void NavigationControllerImpl::FindFramesToNavigate(
1924 FrameTreeNode* frame,
1925 FrameLoadVector* same_document_loads,
1926 FrameLoadVector* different_document_loads) {
1927 DCHECK(pending_entry_);
1928 DCHECK_GE(last_committed_entry_index_, 0);
1929 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:271930 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
1931 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:301932 FrameNavigationEntry* old_item =
1933 GetLastCommittedEntry()->GetFrameEntry(frame);
1934 if (!new_item)
1935 return;
1936
1937 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:561938 // sequence number in the same SiteInstance. Newly restored items may not have
1939 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:301940 if (!old_item ||
1941 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:561942 (new_item->site_instance() != nullptr &&
1943 new_item->site_instance() != old_item->site_instance())) {
creis54131692016-08-12 18:32:251944 // Same document loads happen if the previous item has the same document
1945 // sequence number. Note that we should treat them as different document if
1946 // the destination RenderFrameHost (which is necessarily the current
1947 // RenderFrameHost for same document navigations) doesn't have a last
1948 // committed page. This case can happen for Ctrl+Back or after a renderer
1949 // crash.
creis4e2ecb72015-06-20 00:46:301950 if (old_item &&
1951 new_item->document_sequence_number() ==
creis54131692016-08-12 18:32:251952 old_item->document_sequence_number() &&
1953 !frame->current_frame_host()->last_committed_url().is_empty()) {
creis4e2ecb72015-06-20 00:46:301954 same_document_loads->push_back(std::make_pair(frame, new_item));
avib48cb312016-05-05 21:35:001955
1956 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
1957 // should continue on and navigate all child frames which have also
1958 // changed. This bug is the cause of <https://crbug.com/542299>, which is
1959 // a NC_IN_PAGE_NAVIGATION renderer kill.
1960 //
1961 // However, this bug is a bandaid over a deeper and worse problem. Doing a
1962 // pushState immediately after loading a subframe is a race, one that no
1963 // web page author expects. If we fix this bug, many large websites break.
1964 // For example, see <https://crbug.com/598043> and the spec discussion at
1965 // <https://github.com/whatwg/html/issues/1191>.
1966 //
1967 // For now, we accept this bug, and hope to resolve the race in a
1968 // different way that will one day allow us to fix this.
1969 return;
creis4e2ecb72015-06-20 00:46:301970 } else {
1971 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:581972 // For a different document, the subframes will be destroyed, so there's
1973 // no need to consider them.
1974 return;
creis4e2ecb72015-06-20 00:46:301975 }
creis4e2ecb72015-06-20 00:46:301976 }
1977
1978 for (size_t i = 0; i < frame->child_count(); i++) {
1979 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1980 different_document_loads);
1981 }
1982}
1983
[email protected]d202a7c2012-01-04 07:53:471984void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211985 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271986 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401987
[email protected]2db9bd72012-04-13 20:20:561988 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401989 // location bar will have up-to-date information about the security style
1990 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131991 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401992
[email protected]7f924832014-08-09 05:57:221993 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571994 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461995
[email protected]b0f724c2013-09-05 04:21:131996 // TODO(avi): Remove. http://crbug.com/170921
1997 NotificationDetails notification_details =
1998 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211999 NotificationService::current()->Notify(
2000 NOTIFICATION_NAV_ENTRY_COMMITTED,
2001 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:402002 notification_details);
initial.commit09911bf2008-07-26 23:55:292003}
2004
initial.commit09911bf2008-07-26 23:55:292005// static
[email protected]d202a7c2012-01-04 07:53:472006size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:232007 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
2008 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:212009 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:232010}
2011
[email protected]d202a7c2012-01-04 07:53:472012void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:222013 if (is_active && needs_reload_)
2014 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:292015}
2016
[email protected]d202a7c2012-01-04 07:53:472017void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:292018 if (!needs_reload_)
2019 return;
2020
initial.commit09911bf2008-07-26 23:55:292021 // Calling Reload() results in ignoring state, and not loading.
2022 // Explicitly use NavigateToPendingEntry so that the renderer uses the
2023 // cached state.
avicc872d7242015-08-19 21:26:342024 if (pending_entry_) {
toyoshim0df1d3a2016-09-09 09:52:482025 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342026 } else if (last_committed_entry_index_ != -1) {
2027 pending_entry_index_ = last_committed_entry_index_;
toyoshim0df1d3a2016-09-09 09:52:482028 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342029 } else {
2030 // If there is something to reload, the successful reload will clear the
2031 // |needs_reload_| flag. Otherwise, just do it here.
2032 needs_reload_ = false;
2033 }
initial.commit09911bf2008-07-26 23:55:292034}
2035
avi47179332015-05-20 21:01:112036void NavigationControllerImpl::NotifyEntryChanged(
2037 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:212038 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:092039 det.changed_entry = entry;
avi47179332015-05-20 21:01:112040 det.index = GetIndexOfEntry(
2041 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:212042 NotificationService::current()->Notify(
2043 NOTIFICATION_NAV_ENTRY_CHANGED,
2044 Source<NavigationController>(this),
2045 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:292046}
2047
[email protected]d202a7c2012-01-04 07:53:472048void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:362049 RestoreType type) {
[email protected]a26023822011-12-29 00:23:552050 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:362051 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:292052
avib7348942015-12-25 20:57:102053 SetMaxRestoredPageID(static_cast<int32_t>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:292054
2055 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:292056}
[email protected]765b35502008-08-21 00:51:202057
[email protected]d202a7c2012-01-04 07:53:472058void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:452059 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:482060 DiscardTransientEntry();
2061}
2062
avi45a72532015-04-07 21:01:452063void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:282064 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:402065 // progress, since this will cause a use-after-free. (We only allow this
2066 // when the tab is being destroyed for shutdown, since it won't return to
2067 // NavigateToEntry in that case.) http://crbug.com/347742.
2068 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:282069
avi45a72532015-04-07 21:01:452070 if (was_failure && pending_entry_) {
2071 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
avi45a72532015-04-07 21:01:452072 } else {
2073 failed_pending_entry_id_ = 0;
2074 }
2075
[email protected]765b35502008-08-21 00:51:202076 if (pending_entry_index_ == -1)
2077 delete pending_entry_;
2078 pending_entry_ = NULL;
2079 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:472080}
2081
[email protected]d202a7c2012-01-04 07:53:472082void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:472083 if (transient_entry_index_ == -1)
2084 return;
[email protected]a0e69262009-06-03 19:08:482085 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:182086 if (last_committed_entry_index_ > transient_entry_index_)
2087 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:472088 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:202089}
2090
avib7348942015-12-25 20:57:102091int NavigationControllerImpl::GetEntryIndexWithPageID(SiteInstance* instance,
2092 int32_t page_id) const {
[email protected]765b35502008-08-21 00:51:202093 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:112094 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:512095 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:202096 return i;
2097 }
2098 return -1;
2099}
[email protected]cbab76d2008-10-13 22:42:472100
avi7c6f35e2015-05-08 17:52:382101int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2102 int nav_entry_id) const {
2103 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2104 if (entries_[i]->GetUniqueID() == nav_entry_id)
2105 return i;
2106 }
2107 return -1;
2108}
2109
creis3da03872015-02-20 21:12:322110NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472111 if (transient_entry_index_ == -1)
2112 return NULL;
avif16f85a72015-11-13 18:25:032113 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472114}
[email protected]e1cd5452010-08-26 18:03:252115
avi25764702015-06-23 15:43:372116void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:572117 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212118 // Discard any current transient entry, we can only have one at a time.
2119 int index = 0;
2120 if (last_committed_entry_index_ != -1)
2121 index = last_committed_entry_index_ + 1;
2122 DiscardTransientEntry();
avi25764702015-06-23 15:43:372123 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362124 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
[email protected]0b684262013-02-20 02:18:212125 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222126 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212127}
2128
[email protected]d202a7c2012-01-04 07:53:472129void NavigationControllerImpl::InsertEntriesFrom(
2130 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252131 int max_index) {
[email protected]a26023822011-12-29 00:23:552132 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252133 size_t insert_index = 0;
2134 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352135 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372136 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352137 // TODO(creis): Once we start sharing FrameNavigationEntries between
2138 // NavigationEntries, it will not be safe to share them with another tab.
2139 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252140 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362141 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252142 }
2143 }
2144}
[email protected]c5b88d82012-10-06 17:03:332145
2146void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2147 const base::Callback<base::Time()>& get_timestamp_callback) {
2148 get_timestamp_callback_ = get_timestamp_callback;
2149}
[email protected]8ff00d72012-10-23 19:12:212150
2151} // namespace content