blob: e0aef405249158311d834c25b109db13c7cac3b9 [file] [log] [blame]
[email protected]d4a8ca482013-10-30 21:06:401// Copyright 2013 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
creis4e2ecb72015-06-20 00:46:305/*
6 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
7 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
9 * (http://www.torchmobile.com/)
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
21 * its contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
25 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
[email protected]d4a8ca482013-10-30 21:06:4036#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:2937
dcheng36b6aec92015-12-26 06:16:3638#include <utility>
39
[email protected]c5b88d82012-10-06 17:03:3340#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2841#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2942#include "base/logging.h"
dcheng9bfa5162016-04-09 01:00:5743#include "base/memory/ptr_util.h"
asvitkine30330812016-08-30 04:01:0844#include "base/metrics/histogram_macros.h"
[email protected]348fbaac2013-06-11 06:31:5145#include "base/strings/string_number_conversions.h" // Temporary
46#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0047#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3748#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4249#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5950#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2851#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1852#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3153#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4154#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0455#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4056#include "content/browser/frame_host/debug_urls.h"
57#include "content/browser/frame_host/interstitial_page_impl.h"
58#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2659#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
csharrison9a9142bc42016-03-01 17:24:0460#include "content/browser/frame_host/navigation_handle_impl.h"
creis4e2ecb72015-06-20 00:46:3061#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3262#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3363#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2264#include "content/common/frame_messages.h"
nickd30fd962015-07-27 21:51:0865#include "content/common/site_isolation_policy.h"
[email protected]0aed2f52011-03-23 18:06:3666#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1167#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1968#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4669#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0070#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3871#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1672#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5873#include "content/public/browser/render_widget_host.h"
74#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3475#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1976#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3877#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1078#include "content/public/common/content_features.h"
servolkf3955532015-05-16 00:01:5979#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3280#include "net/base/escape.h"
[email protected]9677a3c2012-12-22 04:18:5881#include "skia/ext/platform_canvas.h"
Kinuko Yasuda74702f92017-07-31 03:27:5382#include "third_party/WebKit/common/mime_util/mime_util.h"
[email protected]cca6f392014-05-28 21:32:2683#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2984
[email protected]8ff00d72012-10-23 19:12:2185namespace content {
[email protected]e9ba4472008-09-14 15:42:4386namespace {
87
88// Invoked when entries have been pruned, or removed. For example, if the
89// current entries are [google, digg, yahoo], with the current entry google,
90// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4791void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4992 bool from_front,
93 int count) {
[email protected]8ff00d72012-10-23 19:12:2194 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4995 details.from_front = from_front;
96 details.count = count;
Sam McNally5c087a32017-08-25 01:46:1497 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:4398}
99
100// Ensure the given NavigationEntry has a valid state, so that WebKit does not
101// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39102//
[email protected]e9ba4472008-09-14 15:42:43103// An empty state is treated as a new navigation by WebKit, which would mean
104// losing the navigation entries and generating a new navigation entry after
105// this one. We don't want that. To avoid this we create a valid state which
106// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04107void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
108 if (!entry->GetPageState().IsValid())
109 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43110}
111
112// Configure all the NavigationEntries in entries for restore. This resets
113// the transition type to reload and makes sure the content state isn't empty.
114void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57115 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48116 RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43117 for (size_t i = 0; i < entries->size(); ++i) {
118 // Use a transition type of reload so that we don't incorrectly increase
119 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35120 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
toyoshim0df1d3a2016-09-09 09:52:48121 (*entries)[i]->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43122 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03123 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43124 }
125}
126
[email protected]bf70edce2012-06-20 22:32:22127// Determines whether or not we should be carrying over a user agent override
128// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21129bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22130 return last_entry && last_entry->GetIsOverridingUserAgent();
131}
132
ananta3bdd8ae2016-12-22 17:11:55133// Returns true if the PageTransition in the |entry| require this navigation to
134// be treated as a reload. For e.g. navigating to the last committed url via
135// the address bar or clicking on a link which results in a navigation to the
136// last committed or pending navigation, etc.
137bool ShouldTreatNavigationAsReload(const NavigationEntry* entry) {
138 if (!entry)
139 return false;
140
141 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
142 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
143 // which should be treated as reloads.
144 if ((ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
145 ui::PAGE_TRANSITION_RELOAD) &&
146 (entry->GetTransitionType() & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR))) {
147 return true;
148 }
149
150 if (ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
151 ui::PAGE_TRANSITION_TYPED)) {
152 return true;
153 }
154
155 if (ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
156 ui::PAGE_TRANSITION_LINK)) {
157 return true;
158 }
159 return false;
160}
161
nasko5ff4eea2017-05-25 02:51:00162// Returns true if the error code indicates an error condition that is not
163// recoverable or navigation is blocked. In such cases, session history
164// navigations to the same NavigationEntry should not attempt to load the
165// original URL.
166// TODO(nasko): Find a better way to distinguish blocked vs failed navigations,
167// as this is a very hacky way of accomplishing this. For now, a handful of
168// error codes are considered, which are more or less known to be cases of
169// blocked navigations.
170bool IsBlockedNavigation(net::Error error_code) {
171 switch (error_code) {
172 case net::ERR_BLOCKED_BY_CLIENT:
173 case net::ERR_BLOCKED_BY_RESPONSE:
174 case net::ERR_BLOCKED_BY_XSS_AUDITOR:
175 case net::ERR_UNSAFE_REDIRECT:
176 return true;
177 default:
178 return false;
179 }
180}
181
[email protected]e9ba4472008-09-14 15:42:43182} // namespace
183
[email protected]d202a7c2012-01-04 07:53:47184// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29185
[email protected]23a918b2014-07-15 09:51:36186const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23187
[email protected]765b35502008-08-21 00:51:20188// static
[email protected]d202a7c2012-01-04 07:53:47189size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23190 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20191
[email protected]e6fec472013-05-14 05:29:02192// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20193// when testing.
194static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29195
[email protected]71fde352011-12-29 03:29:56196// static
dcheng9bfa5162016-04-09 01:00:57197std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
198 const GURL& url,
199 const Referrer& referrer,
200 ui::PageTransition transition,
201 bool is_renderer_initiated,
202 const std::string& extra_headers,
203 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05204 // Fix up the given URL before letting it be rewritten, so that any minor
205 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
206 GURL dest_url(url);
207 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
208 browser_context);
209
[email protected]71fde352011-12-29 03:29:56210 // Allow the browser URL handler to rewrite the URL. This will, for example,
211 // remove "view-source:" from the beginning of the URL to get the URL that
212 // will actually be loaded. This real URL won't be shown to the user, just
213 // used internally.
creis94a977f62015-02-18 23:51:05214 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56215 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31216 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56217 &loaded_url, browser_context, &reverse_on_redirect);
218
219 NavigationEntryImpl* entry = new NavigationEntryImpl(
220 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56221 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56222 loaded_url,
223 referrer,
[email protected]fcf75d42013-12-03 20:11:26224 base::string16(),
[email protected]71fde352011-12-29 03:29:56225 transition,
226 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05227 entry->SetVirtualURL(dest_url);
228 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56229 entry->set_update_virtual_url_with_url(reverse_on_redirect);
230 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57231 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56232}
233
[email protected]cdcb1dee2012-01-04 00:46:20234// static
235void NavigationController::DisablePromptOnRepost() {
236 g_check_for_repost = false;
237}
238
[email protected]c5b88d82012-10-06 17:03:33239base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
240 base::Time t) {
241 // If |t| is between the water marks, we're in a run of duplicates
242 // or just getting out of it, so increase the high-water mark to get
243 // a time that probably hasn't been used before and return it.
244 if (low_water_mark_ <= t && t <= high_water_mark_) {
245 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
246 return high_water_mark_;
247 }
248
249 // Otherwise, we're clear of the last duplicate run, so reset the
250 // water marks.
251 low_water_mark_ = high_water_mark_ = t;
252 return t;
253}
254
[email protected]d202a7c2012-01-04 07:53:47255NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57256 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19257 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37258 : browser_context_(browser_context),
ananta3bdd8ae2016-12-22 17:11:55259 pending_entry_(nullptr),
260 last_pending_entry_(nullptr),
avi45a72532015-04-07 21:01:45261 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20262 last_committed_entry_index_(-1),
263 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47264 transient_entry_index_(-1),
ananta3bdd8ae2016-12-22 17:11:55265 last_pending_entry_index_(-1),
266 last_transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57267 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22268 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57269 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09270 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28271 in_navigate_to_pending_entry_(false),
toyoshim0df1d3a2016-09-09 09:52:48272 pending_reload_(ReloadType::NONE),
[email protected]8cea7892013-02-06 06:49:31273 get_timestamp_callback_(base::Bind(&base::Time::Now)),
toyoshima63c2a62016-09-29 09:03:26274 screenshot_manager_(new NavigationEntryScreenshotManager(this)),
275 last_committed_reload_type_(ReloadType::NONE) {
[email protected]3d7474ff2011-07-27 17:47:37276 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29277}
278
[email protected]d202a7c2012-01-04 07:53:47279NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47280 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29281}
282
[email protected]d202a7c2012-01-04 07:53:47283WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57284 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32285}
286
[email protected]d202a7c2012-01-04 07:53:47287BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55288 return browser_context_;
289}
290
[email protected]d202a7c2012-01-04 07:53:47291void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30292 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36293 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57294 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57295 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55296 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57297 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14298 selected_navigation < static_cast<int>(entries->size()));
arthursonzogni5c4c202d2017-04-25 23:41:27299 DCHECK_EQ(-1, pending_entry_index_);
[email protected]ce3fa3c2009-04-20 19:55:57300
[email protected]ce3fa3c2009-04-20 19:55:57301 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03302 entries_.reserve(entries->size());
303 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36304 entries_.push_back(
305 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03306
307 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
308 // cleared out safely.
309 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57310
311 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36312 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57313}
314
toyoshim6142d96f2016-12-19 09:07:25315void NavigationControllerImpl::Reload(ReloadType reload_type,
316 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28317 DCHECK_NE(ReloadType::NONE, reload_type);
318
[email protected]669e0ba2012-08-30 23:57:36319 if (transient_entry_index_ != -1) {
320 // If an interstitial is showing, treat a reload as a navigation to the
321 // transient entry's URL.
creis3da03872015-02-20 21:12:32322 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27323 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36324 return;
[email protected]6286a3792013-10-09 04:03:27325 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21326 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35327 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27328 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47329 return;
[email protected]669e0ba2012-08-30 23:57:36330 }
[email protected]cbab76d2008-10-13 22:42:47331
[email protected]59167c22013-06-03 18:07:32332 NavigationEntryImpl* entry = NULL;
333 int current_index = -1;
334
335 // If we are reloading the initial navigation, just use the current
336 // pending entry. Otherwise look up the current entry.
337 if (IsInitialNavigation() && pending_entry_) {
338 entry = pending_entry_;
339 // The pending entry might be in entries_ (e.g., after a Clone), so we
340 // should also update the current_index.
341 current_index = pending_entry_index_;
342 } else {
343 DiscardNonCommittedEntriesInternal();
344 current_index = GetCurrentEntryIndex();
345 if (current_index != -1) {
creis3da03872015-02-20 21:12:32346 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32347 }
[email protected]979a4bc2013-04-24 01:27:15348 }
[email protected]241db352013-04-22 18:04:05349
[email protected]59167c22013-06-03 18:07:32350 // If we are no where, then we can't reload. TODO(darin): We should add a
351 // CanReload method.
352 if (!entry)
353 return;
354
toyoshima63c2a62016-09-29 09:03:26355 // Check if previous navigation was a reload to track consecutive reload
356 // operations.
357 if (last_committed_reload_type_ != ReloadType::NONE) {
358 DCHECK(!last_committed_reload_time_.is_null());
359 base::Time now =
360 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
361 DCHECK_GT(now, last_committed_reload_time_);
362 if (!last_committed_reload_time_.is_null() &&
363 now > last_committed_reload_time_) {
364 base::TimeDelta delta = now - last_committed_reload_time_;
365 UMA_HISTOGRAM_MEDIUM_TIMES("Navigation.Reload.ReloadToReloadDuration",
366 delta);
toyoshimb0d4eed32016-12-09 06:03:04367 if (last_committed_reload_type_ == ReloadType::NORMAL) {
toyoshima63c2a62016-09-29 09:03:26368 UMA_HISTOGRAM_MEDIUM_TIMES(
369 "Navigation.Reload.ReloadMainResourceToReloadDuration", delta);
370 }
371 }
372 }
373
374 // Set ReloadType for |entry| in order to check it at commit time.
375 entry->set_reload_type(reload_type);
376
[email protected]cdcb1dee2012-01-04 00:46:20377 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32378 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30379 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07380 // they really want to do this. If they do, the dialog will call us back
381 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57382 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02383
[email protected]106a0812010-03-18 00:15:12384 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57385 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29386 } else {
[email protected]59167c22013-06-03 18:07:32387 if (!IsInitialNavigation())
388 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26389
[email protected]bcd904482012-02-01 01:54:22390 // If we are reloading an entry that no longer belongs to the current
avif9a94c7e2016-10-14 15:54:11391 // SiteInstance (for example, refreshing a page for just installed app), the
392 // reload must happen in a new process. The new entry behaves as new
393 // navigation (which happens to clear forward history). Tabs that are
394 // discarded due to low memory conditions may not have a SiteInstance, and
395 // should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32396 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21397 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10398 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
399 site_instance->GetProcess()->IsForGuestsOnly();
400 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30401 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22402 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46403 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22404 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
405 CreateNavigationEntry(
406 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37407 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26408
[email protected]11535962012-02-09 21:02:10409 // Mark the reload type as NO_RELOAD, so navigation will not be considered
410 // a reload in the renderer.
toyoshim0df1d3a2016-09-09 09:52:48411 reload_type = ReloadType::NONE;
[email protected]11535962012-02-09 21:02:10412
[email protected]e2caa032012-11-15 23:29:18413 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22414 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46415 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22416 } else {
[email protected]59167c22013-06-03 18:07:32417 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22418 pending_entry_index_ = current_index;
419
Sylvain Defresnec6ccc77d2014-09-19 10:19:35420 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22421 }
422
[email protected]1ccb3568d2010-02-19 10:51:16423 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29424 }
425}
426
[email protected]d202a7c2012-01-04 07:53:47427void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48428 DCHECK(pending_reload_ != ReloadType::NONE);
429 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12430}
431
[email protected]d202a7c2012-01-04 07:53:47432void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48433 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12434 NOTREACHED();
435 } else {
toyoshim6142d96f2016-12-19 09:07:25436 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48437 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12438 }
439}
440
[email protected]cd2e15742013-03-08 04:08:31441bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09442 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11443}
444
creis10a4ab72015-10-13 17:22:40445bool NavigationControllerImpl::IsInitialBlankNavigation() const {
446 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48447 // we'll need to check for entry count 1 and restore_type NONE (to exclude
448 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40449 return IsInitialNavigation() && GetEntryCount() == 0;
450}
451
avi254eff02015-07-01 08:27:58452NavigationEntryImpl*
453NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
454 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03455 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58456}
457
avi25764702015-06-23 15:43:37458void NavigationControllerImpl::LoadEntry(
dcheng9bfa5162016-04-09 01:00:57459 std::unique_ptr<NavigationEntryImpl> entry) {
ananta3bdd8ae2016-12-22 17:11:55460 // Remember the last pending entry for which we haven't received a response
461 // yet. This will be deleted in the NavigateToPendingEntry() function.
arthursonzogni5c4c202d2017-04-25 23:41:27462 DCHECK_EQ(nullptr, last_pending_entry_);
463 DCHECK_EQ(-1, last_pending_entry_index_);
ananta3bdd8ae2016-12-22 17:11:55464 last_pending_entry_ = pending_entry_;
465 last_pending_entry_index_ = pending_entry_index_;
466 last_transient_entry_index_ = transient_entry_index_;
arthursonzogni5c4c202d2017-04-25 23:41:27467
ananta3bdd8ae2016-12-22 17:11:55468 pending_entry_ = nullptr;
arthursonzogni5c4c202d2017-04-25 23:41:27469 pending_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:20470 // When navigating to a new page, we don't know for sure if we will actually
471 // end up leaving the current page. The new page load could for example
472 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36473 SetPendingEntry(std::move(entry));
toyoshim0df1d3a2016-09-09 09:52:48474 NavigateToPendingEntry(ReloadType::NONE);
[email protected]59167c22013-06-03 18:07:32475}
476
avi25764702015-06-23 15:43:37477void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57478 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47479 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37480 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27481 DCHECK_EQ(-1, pending_entry_index_);
[email protected]8ff00d72012-10-23 19:12:21482 NotificationService::current()->Notify(
483 NOTIFICATION_NAV_ENTRY_PENDING,
484 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37485 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20486}
487
creis3da03872015-02-20 21:12:32488NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47489 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03490 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47491 if (pending_entry_)
492 return pending_entry_;
493 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20494}
495
creis3da03872015-02-20 21:12:32496NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19497 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03498 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32499 // The pending entry is safe to return for new (non-history), browser-
500 // initiated navigations. Most renderer-initiated navigations should not
501 // show the pending entry, to prevent URL spoof attacks.
502 //
503 // We make an exception for renderer-initiated navigations in new tabs, as
504 // long as no other page has tried to access the initial empty document in
505 // the new tab. If another page modifies this blank page, a URL spoof is
506 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32507 bool safe_to_show_pending =
508 pending_entry_ &&
509 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09510 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32511 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46512 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32513
514 // Also allow showing the pending entry for history navigations in a new tab,
515 // such as Ctrl+Back. In this case, no existing page is visible and no one
516 // can script the new tab before it commits.
517 if (!safe_to_show_pending &&
518 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09519 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32520 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34521 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32522 safe_to_show_pending = true;
523
524 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19525 return pending_entry_;
526 return GetLastCommittedEntry();
527}
528
[email protected]d202a7c2012-01-04 07:53:47529int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47530 if (transient_entry_index_ != -1)
531 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20532 if (pending_entry_index_ != -1)
533 return pending_entry_index_;
534 return last_committed_entry_index_;
535}
536
creis3da03872015-02-20 21:12:32537NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20538 if (last_committed_entry_index_ == -1)
539 return NULL;
avif16f85a72015-11-13 18:25:03540 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20541}
542
[email protected]d202a7c2012-01-04 07:53:47543bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57544 const std::string& mime_type = delegate_->GetContentsMimeType();
Kinuko Yasuda74702f92017-07-31 03:27:53545 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
546 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27547 NavigationEntry* visible_entry = GetVisibleEntry();
548 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57549 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16550}
551
[email protected]d202a7c2012-01-04 07:53:47552int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:27553 // The last committed entry index must always be less than the number of
554 // entries. If there are no entries, it must be -1. However, there may be a
555 // transient entry while the last committed entry index is still -1.
556 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
557 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55558 return last_committed_entry_index_;
559}
560
[email protected]d202a7c2012-01-04 07:53:47561int NavigationControllerImpl::GetEntryCount() const {
arthursonzogni5c4c202d2017-04-25 23:41:27562 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55563 return static_cast<int>(entries_.size());
564}
565
creis3da03872015-02-20 21:12:32566NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25567 int index) const {
avi25764702015-06-23 15:43:37568 if (index < 0 || index >= GetEntryCount())
569 return nullptr;
570
avif16f85a72015-11-13 18:25:03571 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25572}
573
creis3da03872015-02-20 21:12:32574NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25575 int offset) const {
avi057ce1492015-06-29 15:59:47576 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20577}
578
[email protected]9ba14052012-06-22 23:50:03579int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46580 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03581}
582
[email protected]9677a3c2012-12-22 04:18:58583void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10584 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58585}
586
[email protected]1a3f5312013-04-26 21:00:10587void NavigationControllerImpl::SetScreenshotManager(
dcheng9bfa5162016-04-09 01:00:57588 std::unique_ptr<NavigationEntryScreenshotManager> manager) {
avi67081d0ae2015-07-27 18:25:46589 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36590 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46591 else
592 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58593}
594
[email protected]d202a7c2012-01-04 07:53:47595bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22596 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20597}
598
[email protected]d202a7c2012-01-04 07:53:47599bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22600 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20601}
602
[email protected]9ba14052012-06-22 23:50:03603bool NavigationControllerImpl::CanGoToOffset(int offset) const {
604 int index = GetIndexForOffset(offset);
605 return index >= 0 && index < GetEntryCount();
606}
607
[email protected]d202a7c2012-01-04 07:53:47608void NavigationControllerImpl::GoBack() {
toyoshim3af4d502016-03-30 12:38:12609 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
610 GoToIndex(GetIndexForOffset(-1));
[email protected]765b35502008-08-21 00:51:20611}
612
[email protected]d202a7c2012-01-04 07:53:47613void NavigationControllerImpl::GoForward() {
toyoshim3af4d502016-03-30 12:38:12614 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
615 GoToIndex(GetIndexForOffset(1));
[email protected]765b35502008-08-21 00:51:20616}
617
[email protected]d202a7c2012-01-04 07:53:47618void NavigationControllerImpl::GoToIndex(int index) {
sunjian30574a62017-03-21 21:39:44619 TRACE_EVENT0("browser,navigation,benchmark",
620 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:20621 if (index < 0 || index >= static_cast<int>(entries_.size())) {
622 NOTREACHED();
623 return;
624 }
625
[email protected]cbab76d2008-10-13 22:42:47626 if (transient_entry_index_ != -1) {
627 if (index == transient_entry_index_) {
628 // Nothing to do when navigating to the transient.
629 return;
630 }
631 if (index > transient_entry_index_) {
632 // Removing the transient is goint to shift all entries by 1.
633 index--;
634 }
635 }
636
637 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20638
arthursonzogni5c4c202d2017-04-25 23:41:27639 DCHECK_EQ(nullptr, pending_entry_);
640 DCHECK_EQ(-1, pending_entry_index_);
641 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:20642 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:27643 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
644 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
toyoshim0df1d3a2016-09-09 09:52:48645 NavigateToPendingEntry(ReloadType::NONE);
[email protected]765b35502008-08-21 00:51:20646}
647
[email protected]d202a7c2012-01-04 07:53:47648void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12649 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03650 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20651 return;
652
[email protected]9ba14052012-06-22 23:50:03653 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20654}
655
[email protected]41374f12013-07-24 02:49:28656bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
657 if (index == last_committed_entry_index_ ||
658 index == pending_entry_index_)
659 return false;
[email protected]6a13a6c2011-12-20 21:47:12660
[email protected]43032342011-03-21 14:10:31661 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28662 return true;
[email protected]cbab76d2008-10-13 22:42:47663}
664
[email protected]d202a7c2012-01-04 07:53:47665void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23666 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32667 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31668 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51669 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
670 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32671 }
672}
673
[email protected]d202a7c2012-01-04 07:53:47674void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47675 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21676 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35677 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47678 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47679 LoadURLParams params(url);
680 params.referrer = referrer;
681 params.transition_type = transition;
682 params.extra_headers = extra_headers;
683 LoadURLWithParams(params);
684}
685
686void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43687 TRACE_EVENT1("browser,navigation",
688 "NavigationControllerImpl::LoadURLWithParams",
689 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43690 if (HandleDebugURL(params.url, params.transition_type)) {
691 // If Telemetry is running, allow the URL load to proceed as if it's
692 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49693 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43694 cc::switches::kEnableGpuBenchmarking))
695 return;
696 }
[email protected]8bf1048012012-02-08 01:22:18697
[email protected]cf002332012-08-14 19:17:47698 // Checks based on params.load_type.
699 switch (params.load_type) {
700 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:43701 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47702 break;
703 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26704 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47705 NOTREACHED() << "Data load must use data scheme.";
706 return;
707 }
708 break;
709 default:
710 NOTREACHED();
711 break;
712 };
[email protected]e47ae9472011-10-13 19:48:34713
[email protected]e47ae9472011-10-13 19:48:34714 // The user initiated a load, we don't need to reload anymore.
715 needs_reload_ = false;
716
[email protected]cf002332012-08-14 19:17:47717 bool override = false;
718 switch (params.override_user_agent) {
719 case UA_OVERRIDE_INHERIT:
720 override = ShouldKeepOverride(GetLastCommittedEntry());
721 break;
722 case UA_OVERRIDE_TRUE:
723 override = true;
724 break;
725 case UA_OVERRIDE_FALSE:
726 override = false;
727 break;
728 default:
729 NOTREACHED();
730 break;
[email protected]d1ef81d2012-07-24 11:39:36731 }
732
dcheng9bfa5162016-04-09 01:00:57733 std::unique_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30734
735 // For subframes, create a pending entry with a corresponding frame entry.
736 int frame_tree_node_id = params.frame_tree_node_id;
737 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
738 FrameTreeNode* node =
739 params.frame_tree_node_id != -1
740 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
741 : delegate_->GetFrameTree()->FindByName(params.frame_name);
742 if (node && !node->IsMainFrame()) {
743 DCHECK(GetLastCommittedEntry());
744
745 // Update the FTN ID to use below in case we found a named frame.
746 frame_tree_node_id = node->frame_tree_node_id();
747
creisce0ef3572017-01-26 17:53:08748 // Create an identical NavigationEntry with a new FrameNavigationEntry for
749 // the target subframe.
750 entry = GetLastCommittedEntry()->Clone();
751 entry->AddOrUpdateFrameEntry(
752 node, -1, -1, nullptr,
753 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
754 params.url, params.referrer, params.redirect_chain, PageState(),
755 "GET", -1);
creis4e2ecb72015-06-20 00:46:30756 }
creis6a93a812015-04-24 23:13:17757 }
creis4e2ecb72015-06-20 00:46:30758
759 // Otherwise, create a pending entry for the main frame.
760 if (!entry) {
[email protected]11fec362017-09-11 14:06:50761 // extra_headers in params are \n separated, navigation entries want \r\n.
762 std::string extra_headers_crlf;
763 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
creis4e2ecb72015-06-20 00:46:30764 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
765 params.url, params.referrer, params.transition_type,
[email protected]11fec362017-09-11 14:06:50766 params.is_renderer_initiated, extra_headers_crlf, browser_context_));
naskoc7533512016-05-06 17:01:12767 entry->set_source_site_instance(
768 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
arthursonzognie6b67c20b2016-10-04 09:46:04769 entry->SetRedirectChain(params.redirect_chain);
creis4e2ecb72015-06-20 00:46:30770 }
naskoc7533512016-05-06 17:01:12771
creis4e2ecb72015-06-20 00:46:30772 // Set the FTN ID (only used in non-site-per-process, for tests).
773 entry->set_frame_tree_node_id(frame_tree_node_id);
avib6cc1562015-02-12 19:56:39774 // Don't allow an entry replacement if there is no entry to replace.
775 // http://crbug.com/457149
776 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18777 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13778 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47779 entry->SetIsOverridingUserAgent(override);
780 entry->set_transferred_global_request_id(
781 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36782
clamy8451aa62015-01-23 16:56:08783#if defined(OS_ANDROID)
784 if (params.intent_received_timestamp > 0) {
785 entry->set_intent_received_timestamp(
786 base::TimeTicks() +
787 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
788 }
qinmin976d4d92015-08-07 18:32:39789 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08790#endif
791
[email protected]cf002332012-08-14 19:17:47792 switch (params.load_type) {
793 case LOAD_TYPE_DEFAULT:
794 break;
lukasza477a5a22016-06-16 18:28:43795 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47796 entry->SetHasPostData(true);
lukasza477a5a22016-06-16 18:28:43797 entry->SetPostData(params.post_data);
[email protected]cf002332012-08-14 19:17:47798 break;
799 case LOAD_TYPE_DATA:
800 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
801 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03802#if defined(OS_ANDROID)
803 entry->SetDataURLAsString(params.data_url_as_string);
804#endif
[email protected]951a64832012-10-11 16:26:37805 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47806 break;
807 default:
808 NOTREACHED();
809 break;
810 };
[email protected]132e281a2012-07-31 18:32:44811
djacobo825aa6a82016-09-29 22:47:19812 entry->set_started_from_context_menu(params.started_from_context_menu);
dcheng36b6aec92015-12-26 06:16:36813 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44814}
815
creisb4dc9332016-03-14 21:39:19816bool NavigationControllerImpl::PendingEntryMatchesHandle(
817 NavigationHandleImpl* handle) const {
818 return pending_entry_ &&
819 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
820}
821
[email protected]d202a7c2012-01-04 07:53:47822bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32823 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22824 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
peary21b0f797b2016-09-28 17:28:33825 LoadCommittedDetails* details,
clamy3bf35e3c2016-11-10 15:59:44826 bool is_navigation_within_page,
827 NavigationHandleImpl* navigation_handle) {
[email protected]cd2e15742013-03-08 04:08:31828 is_initial_navigation_ = false;
829
[email protected]0e8db942008-09-24 21:21:48830 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:43831 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:48832 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51833 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55834 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:43835 if (pending_entry_ &&
836 pending_entry_->GetIsOverridingUserAgent() !=
837 GetLastCommittedEntry()->GetIsOverridingUserAgent())
838 overriding_user_agent_changed = true;
[email protected]0e8db942008-09-24 21:21:48839 } else {
840 details->previous_url = GURL();
841 details->previous_entry_index = -1;
842 }
[email protected]ecd9d8702008-08-28 22:10:17843
fdegans9caf66a2015-07-30 21:10:42844 // If there is a pending entry at this point, it should have a SiteInstance,
845 // except for restored entries.
jam48cea9082017-02-15 06:13:29846 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:48847 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
848 pending_entry_->restore_type() != RestoreType::NONE);
849 if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
850 pending_entry_->set_restore_type(RestoreType::NONE);
jam48cea9082017-02-15 06:13:29851 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:48852 }
[email protected]e9ba4472008-09-14 15:42:43853
creis865ad442016-03-15 16:43:09854 // The renderer tells us whether the navigation replaces the current entry.
855 details->did_replace_entry = params.should_replace_current_entry;
[email protected]bcd904482012-02-01 01:54:22856
[email protected]e9ba4472008-09-14 15:42:43857 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43858 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20859
eugenebutee08663a2017-04-27 17:43:12860 // is_same_document must be computed before the entry gets committed.
861 details->is_same_document = is_navigation_within_page;
[email protected]b9d4dfdc2013-08-08 00:25:12862
toyoshima63c2a62016-09-29 09:03:26863 // Save reload type and timestamp for a reload navigation to detect
864 // consecutive reloads when the next reload is requested.
clamy3bf35e3c2016-11-10 15:59:44865 if (PendingEntryMatchesHandle(navigation_handle)) {
toyoshima63c2a62016-09-29 09:03:26866 if (pending_entry_->reload_type() != ReloadType::NONE) {
867 last_committed_reload_type_ = pending_entry_->reload_type();
868 last_committed_reload_time_ =
869 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
870 } else if (!pending_entry_->is_renderer_initiated() ||
871 params.gesture == NavigationGestureUser) {
872 last_committed_reload_type_ = ReloadType::NONE;
873 last_committed_reload_time_ = base::Time();
874 }
875 }
876
[email protected]0e8db942008-09-24 21:21:48877 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21878 case NAVIGATION_TYPE_NEW_PAGE:
eugenebutee08663a2017-04-27 17:43:12879 RendererDidNavigateToNewPage(rfh, params, details->is_same_document,
clamy3bf35e3c2016-11-10 15:59:44880 details->did_replace_entry,
881 navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43882 break;
[email protected]8ff00d72012-10-23 19:12:21883 case NAVIGATION_TYPE_EXISTING_PAGE:
eugenebutee08663a2017-04-27 17:43:12884 details->did_replace_entry = details->is_same_document;
885 RendererDidNavigateToExistingPage(rfh, params, details->is_same_document,
jam48cea9082017-02-15 06:13:29886 was_restored, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43887 break;
[email protected]8ff00d72012-10-23 19:12:21888 case NAVIGATION_TYPE_SAME_PAGE:
clamy3bf35e3c2016-11-10 15:59:44889 RendererDidNavigateToSamePage(rfh, params, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43890 break;
[email protected]8ff00d72012-10-23 19:12:21891 case NAVIGATION_TYPE_NEW_SUBFRAME:
eugenebutee08663a2017-04-27 17:43:12892 RendererDidNavigateNewSubframe(rfh, params, details->is_same_document,
creisf49dfc92016-07-26 17:05:18893 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43894 break;
[email protected]8ff00d72012-10-23 19:12:21895 case NAVIGATION_TYPE_AUTO_SUBFRAME:
creis59d5a47cb2016-08-24 23:57:19896 if (!RendererDidNavigateAutoSubframe(rfh, params)) {
creisce0ef3572017-01-26 17:53:08897 // We don't send a notification about auto-subframe PageState during
898 // UpdateStateForFrame, since it looks like nothing has changed. Send
899 // it here at commit time instead.
900 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:43901 return false;
creis59d5a47cb2016-08-24 23:57:19902 }
[email protected]e9ba4472008-09-14 15:42:43903 break;
[email protected]8ff00d72012-10-23 19:12:21904 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49905 // If a pending navigation was in progress, this canceled it. We should
906 // discard it and make sure it is removed from the URL bar. After that,
907 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43908 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49909 if (pending_entry_) {
910 DiscardNonCommittedEntries();
pdr15f5b5b2017-06-20 00:58:00911 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49912 }
[email protected]e9ba4472008-09-14 15:42:43913 return false;
914 default:
915 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20916 }
917
[email protected]688aa65c62012-09-28 04:32:22918 // At this point, we know that the navigation has just completed, so
919 // record the time.
920 //
921 // TODO(akalin): Use "sane time" as described in
922 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33923 base::Time timestamp =
924 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
925 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22926 << timestamp.ToInternalValue();
927
[email protected]f233e4232013-02-23 00:55:14928 // We should not have a pending entry anymore. Clear it again in case any
929 // error cases above forgot to do so.
930 DiscardNonCommittedEntriesInternal();
931
[email protected]e9ba4472008-09-14 15:42:43932 // All committed entries should have nonempty content state so WebKit doesn't
933 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:47934 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:32935 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22936 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44937 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:12938
939 FrameNavigationEntry* frame_entry =
940 active_entry->GetFrameEntry(rfh->frame_tree_node());
creisce0ef3572017-01-26 17:53:08941 // Update the frame-specific PageState and RedirectChain
942 // We may not find a frame_entry in some cases; ignore the PageState if so.
943 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
944 if (frame_entry) {
945 frame_entry->SetPageState(params.page_state);
946 frame_entry->set_redirect_chain(params.redirects);
creis4e2ecb72015-06-20 00:46:30947 }
[email protected]132e281a2012-07-31 18:32:44948
nasko5ff4eea2017-05-25 02:51:00949 // When a navigation in the main frame is blocked, it will display an error
950 // page. To avoid loading the blocked URL on back/forward navigations,
951 // do not store it in the FrameNavigationEntry's URL or PageState. Instead,
952 // make it visible to the user as the virtual URL. Store a safe URL
953 // (about:blank) as the one to load if the entry is revisited.
954 // TODO(nasko): Consider supporting similar behavior for subframe
955 // navigations, including AUTO_SUBFRAME.
956 if (!rfh->GetParent() &&
957 IsBlockedNavigation(navigation_handle->GetNetErrorCode())) {
958 DCHECK(params.url_is_unreachable);
959 active_entry->SetURL(GURL(url::kAboutBlankURL));
960 active_entry->SetVirtualURL(params.url);
961 if (frame_entry) {
962 frame_entry->SetPageState(
963 PageState::CreateFromURL(active_entry->GetURL()));
964 }
965 }
966
[email protected]d6def3d2014-05-19 18:55:32967 // Use histogram to track memory impact of redirect chain because it's now
968 // not cleared for committed entries.
969 size_t redirect_chain_size = 0;
970 for (size_t i = 0; i < params.redirects.size(); ++i) {
971 redirect_chain_size += params.redirects[i].spec().length();
972 }
973 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
974
[email protected]97d8f0d2013-10-29 16:49:21975 // Once it is committed, we no longer need to track several pieces of state on
976 // the entry.
naskoc7533512016-05-06 17:01:12977 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:13978
[email protected]49bd30e62011-03-22 20:12:59979 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22980 // TODO(creis): This check won't pass for subframes until we create entries
981 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00982 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42983 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59984
[email protected]b26de072013-02-23 02:33:44985 // Remember the bindings the renderer process has at this point, so that
986 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32987 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44988
[email protected]e9ba4472008-09-14 15:42:43989 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00990 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00991 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31992 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53993
[email protected]93f230e02011-06-01 14:40:00994 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29995
John Abd-El-Malek380d3c5922017-09-08 00:20:31996 if (active_entry->GetURL().SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
997 navigation_handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek969cdd94e2017-07-10 22:18:16998 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus",
999 !!active_entry->GetSSL().certificate);
1000 }
1001
aelias100c9192017-01-13 00:01:431002 if (overriding_user_agent_changed)
1003 delegate_->UpdateOverridingUserAgent();
1004
creis03b48002015-11-04 00:54:561005 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1006 // one knows the latest NavigationEntry it is showing (whether it has
1007 // committed anything in this navigation or not). This allows things like
1008 // state and title updates from RenderFrames to apply to the latest relevant
1009 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381010 int nav_entry_id = active_entry->GetUniqueID();
1011 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
1012 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:431013 return true;
initial.commit09911bf2008-07-26 23:55:291014}
1015
[email protected]8ff00d72012-10-23 19:12:211016NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321017 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221018 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:381019 if (params.did_create_new_entry) {
1020 // A new entry. We may or may not have a pending entry for the page, and
1021 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001022 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381023 return NAVIGATION_TYPE_NEW_PAGE;
1024 }
1025
1026 // When this is a new subframe navigation, we should have a committed page
1027 // in which it's a subframe. This may not be the case when an iframe is
1028 // navigated on a popup navigated to about:blank (the iframe would be
1029 // written into the popup by script on the main page). For these cases,
1030 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:231031 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381032 return NAVIGATION_TYPE_NAV_IGNORE;
1033
1034 // Valid subframe navigation.
1035 return NAVIGATION_TYPE_NEW_SUBFRAME;
1036 }
1037
creis865ad442016-03-15 16:43:091038 // Cross-process location.replace navigations should be classified as New with
1039 // replacement rather than ExistingPage, since it is not safe to reuse the
1040 // NavigationEntry.
1041 // TODO(creis): Have the renderer classify location.replace as
1042 // did_create_new_entry for all cases and eliminate this special case. This
creis22a7b4c2016-04-28 07:20:301043 // requires updating several test expectations. See https://crbug.com/596707.
creis865ad442016-03-15 16:43:091044 if (!rfh->GetParent() && GetLastCommittedEntry() &&
1045 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance() &&
1046 params.should_replace_current_entry) {
1047 return NAVIGATION_TYPE_NEW_PAGE;
1048 }
1049
avi7c6f35e2015-05-08 17:52:381050 // We only clear the session history when navigating to a new page.
1051 DCHECK(!params.history_list_was_cleared);
1052
avi39c1edd32015-06-04 20:06:001053 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381054 // All manual subframes would be did_create_new_entry and handled above, so
1055 // we know this is auto.
1056 if (GetLastCommittedEntry()) {
1057 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1058 } else {
1059 // We ignore subframes created in non-committed pages; we'd appreciate if
1060 // people stopped doing that.
1061 return NAVIGATION_TYPE_NAV_IGNORE;
1062 }
1063 }
1064
1065 if (params.nav_entry_id == 0) {
1066 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1067 // create a new page.
1068
1069 // Just like above in the did_create_new_entry case, it's possible to
1070 // scribble onto an uncommitted page. Again, there isn't any navigation
1071 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231072 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231073 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381074 return NAVIGATION_TYPE_NAV_IGNORE;
1075
avi259dc792015-07-07 04:42:361076 // This is history.replaceState(), history.reload(), or a client-side
1077 // redirect.
1078 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381079 }
1080
1081 if (pending_entry_ && pending_entry_index_ == -1 &&
1082 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1083 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421084 // didn't do a new navigation (params.did_create_new_entry). First check to
1085 // make sure Blink didn't treat a new cross-process navigation as inert, and
1086 // thus set params.did_create_new_entry to false. In that case, we must
1087 // treat it as NEW since the SiteInstance doesn't match the entry.
creis08557a22016-09-07 22:00:081088 if (!GetLastCommittedEntry() ||
creis5eb00a5f2016-08-24 03:50:281089 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
creis77c9aa32015-09-25 19:59:421090 return NAVIGATION_TYPE_NEW_PAGE;
1091
1092 // Otherwise, this happens when you press enter in the URL bar to reload. We
1093 // will create a pending entry, but Blink will convert it to a reload since
1094 // it's the same page and not create a new entry for it (the user doesn't
1095 // want to have a new back/forward entry when they do this). Therefore we
1096 // want to just ignore the pending entry and go back to where we were (the
1097 // "existing entry").
1098 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381099 return NAVIGATION_TYPE_SAME_PAGE;
1100 }
1101
creis26d22632017-04-21 20:23:561102 // Everything below here is assumed to be an existing entry, but if there is
1103 // no last committed entry, we must consider it a new navigation instead.
1104 if (!GetLastCommittedEntry())
1105 return NAVIGATION_TYPE_NEW_PAGE;
1106
avi7c6f35e2015-05-08 17:52:381107 if (params.intended_as_new_entry) {
1108 // This was intended to be a navigation to a new entry but the pending entry
1109 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1110 // may not have a pending entry.
1111 return NAVIGATION_TYPE_EXISTING_PAGE;
1112 }
1113
1114 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1115 params.nav_entry_id == failed_pending_entry_id_) {
1116 // If the renderer was going to a new pending entry that got cleared because
1117 // of an error, this is the case of the user trying to retry a failed load
1118 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1119 // have a pending entry.
1120 return NAVIGATION_TYPE_EXISTING_PAGE;
1121 }
1122
1123 // Now we know that the notification is for an existing page. Find that entry.
1124 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1125 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441126 // The renderer has committed a navigation to an entry that no longer
1127 // exists. Because the renderer is showing that page, resurrect that entry.
1128 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381129 }
1130
avi7c6f35e2015-05-08 17:52:381131 // Since we weeded out "new" navigations above, we know this is an existing
1132 // (back/forward) navigation.
1133 return NAVIGATION_TYPE_EXISTING_PAGE;
1134}
1135
[email protected]d202a7c2012-01-04 07:53:471136void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321137 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221138 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361139 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441140 bool replace_entry,
1141 NavigationHandleImpl* handle) {
dcheng9bfa5162016-04-09 01:00:571142 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181143 bool update_virtual_url = false;
1144
1145 // First check if this is an in-page navigation. If so, clone the current
1146 // entry instead of looking at the pending entry, because the pending entry
1147 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361148 if (is_same_document && GetLastCommittedEntry()) {
creisf49dfc92016-07-26 17:05:181149 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
1150 params.frame_unique_name, params.item_sequence_number,
1151 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1152 params.url, params.referrer, params.method, params.post_id);
1153 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1154 frame_entry, true, rfh->frame_tree_node(),
1155 delegate_->GetFrameTree()->root());
jama78746e2017-02-22 17:21:571156 if (new_entry->GetURL().GetOrigin() != params.url.GetOrigin()) {
1157 // TODO(jam): we had one report of this with a URL that was redirecting to
1158 // only tildes. Until we understand that better, don't copy the cert in
1159 // this case.
1160 new_entry->GetSSL() = SSLStatus();
John Abd-El-Malek9cd697e2017-07-12 21:53:141161
John Abd-El-Malek380d3c5922017-09-08 00:20:311162 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1163 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141164 UMA_HISTOGRAM_BOOLEAN(
1165 "Navigation.SecureSchemeHasSSLStatus.NewPageInPageOriginMismatch",
1166 !!new_entry->GetSSL().certificate);
1167 }
jama78746e2017-02-22 17:21:571168 }
creisf49dfc92016-07-26 17:05:181169
1170 // We expect |frame_entry| to be owned by |new_entry|. This should never
1171 // fail, because it's the main frame.
1172 CHECK(frame_entry->HasOneRef());
1173
1174 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malek9cd697e2017-07-12 21:53:141175
John Abd-El-Malek380d3c5922017-09-08 00:20:311176 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1177 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141178 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.NewPageInPage",
1179 !!new_entry->GetSSL().certificate);
1180 }
creisf49dfc92016-07-26 17:05:181181 }
1182
[email protected]6dd86ab2013-02-27 00:30:341183 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041184 // that was just loaded. Verify this by checking if the entry corresponds
clamy3bf35e3c2016-11-10 15:59:441185 // to the given navigation handle. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041186 // 1. The SiteInstance hasn't been assigned to something else.
1187 // 2. The pending entry was intended as a new entry, rather than being a
1188 // history navigation that was interrupted by an unrelated,
1189 // renderer-initiated navigation.
1190 // TODO(csharrison): Investigate whether we can remove some of the coarser
1191 // checks.
creisf49dfc92016-07-26 17:05:181192 if (!new_entry &&
1193 PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341194 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431195 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351196 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431197
[email protected]f1eb87a2011-05-06 17:49:411198 update_virtual_url = new_entry->update_virtual_url_with_url();
jamb981f482016-08-30 05:55:021199 new_entry->GetSSL() = handle->ssl_status();
John Abd-El-Malek9cd697e2017-07-12 21:53:141200
John Abd-El-Malek380d3c5922017-09-08 00:20:311201 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1202 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141203 UMA_HISTOGRAM_BOOLEAN(
1204 "Navigation.SecureSchemeHasSSLStatus.NewPagePendingEntryMatches",
1205 !!new_entry->GetSSL().certificate);
1206 }
creisf49dfc92016-07-26 17:05:181207 }
1208
1209 // For non-in-page commits with no matching pending entry, create a new entry.
1210 if (!new_entry) {
dcheng9bfa5162016-04-09 01:00:571211 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241212
1213 // Find out whether the new entry needs to update its virtual URL on URL
1214 // change and set up the entry accordingly. This is needed to correctly
1215 // update the virtual URL when replaceState is called after a pushState.
1216 GURL url = params.url;
1217 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431218 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1219 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241220 new_entry->set_update_virtual_url_with_url(needs_update);
1221
[email protected]f1eb87a2011-05-06 17:49:411222 // When navigating to a new page, give the browser URL handler a chance to
1223 // update the virtual URL based on the new URL. For example, this is needed
1224 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1225 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241226 update_virtual_url = needs_update;
jamb981f482016-08-30 05:55:021227 new_entry->GetSSL() = handle->ssl_status();
John Abd-El-Malek9cd697e2017-07-12 21:53:141228
John Abd-El-Malek380d3c5922017-09-08 00:20:311229 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1230 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141231 UMA_HISTOGRAM_BOOLEAN(
1232 "Navigation.SecureSchemeHasSSLStatus.NewPageNoMatchingEntry",
1233 !!new_entry->GetSSL().certificate);
1234 }
[email protected]e9ba4472008-09-14 15:42:431235 }
1236
wjmaclean7431bb22015-02-19 14:53:431237 // Don't use the page type from the pending entry. Some interstitial page
1238 // may have set the type to interstitial. Once we commit, however, the page
1239 // type must always be normal or error.
1240 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1241 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041242 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411243 if (update_virtual_url)
avi25764702015-06-23 15:43:371244 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251245 new_entry->SetReferrer(params.referrer);
[email protected]022af742011-12-28 18:37:251246 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331247 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431248 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231249 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221250 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431251
creis8b5cd4c2015-06-19 00:11:081252 // Update the FrameNavigationEntry for new main frame commits.
1253 FrameNavigationEntry* frame_entry =
1254 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431255 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081256 frame_entry->set_item_sequence_number(params.item_sequence_number);
1257 frame_entry->set_document_sequence_number(params.document_sequence_number);
clamy432acb22016-04-15 19:41:431258 frame_entry->set_method(params.method);
1259 frame_entry->set_post_id(params.post_id);
creis8b5cd4c2015-06-19 00:11:081260
eugenebut604866f2017-05-10 21:35:361261 // history.pushState() is classified as a navigation to a new page, but sets
1262 // is_same_document to true. In this case, we already have the title and
creisf49dfc92016-07-26 17:05:181263 // favicon available, so set them immediately.
eugenebut604866f2017-05-10 21:35:361264 if (is_same_document && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331265 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191266 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1267 }
[email protected]ff64b3e2014-05-31 04:07:331268
[email protected]60d6cca2013-04-30 08:47:131269 DCHECK(!params.history_list_was_cleared || !replace_entry);
1270 // The browser requested to clear the session history when it initiated the
1271 // navigation. Now we know that the renderer has updated its state accordingly
1272 // and it is safe to also clear the browser side history.
1273 if (params.history_list_was_cleared) {
1274 DiscardNonCommittedEntriesInternal();
1275 entries_.clear();
1276 last_committed_entry_index_ = -1;
1277 }
1278
dcheng36b6aec92015-12-26 06:16:361279 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431280}
1281
[email protected]d202a7c2012-01-04 07:53:471282void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321283 RenderFrameHostImpl* rfh,
jam0576b132016-09-07 05:13:101284 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361285 bool is_same_document,
jam48cea9082017-02-15 06:13:291286 bool was_restored,
clamy3bf35e3c2016-11-10 15:59:441287 NavigationHandleImpl* handle) {
creis26d22632017-04-21 20:23:561288 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1289 << "that a last committed entry exists.";
1290
[email protected]e9ba4472008-09-14 15:42:431291 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001292 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431293
naskoaf182192016-08-11 02:12:011294 // TODO(creis): Classify location.replace as NEW_PAGE instead of EXISTING_PAGE
1295 // in https://crbug.com/596707.
1296
avicbdc4c12015-07-01 16:07:111297 NavigationEntryImpl* entry;
1298 if (params.intended_as_new_entry) {
1299 // This was intended as a new entry but the pending entry was lost in the
1300 // meanwhile and no new page was created. We are stuck at the last committed
1301 // entry.
1302 entry = GetLastCommittedEntry();
eugenebut604866f2017-05-10 21:35:361303 // If this is a same document navigation, then there's no SSLStatus in the
jam1325c822017-03-17 18:20:541304 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361305 if (!is_same_document)
jam1325c822017-03-17 18:20:541306 entry->GetSSL() = handle->ssl_status();
John Abd-El-Malek9cd697e2017-07-12 21:53:141307
John Abd-El-Malek380d3c5922017-09-08 00:20:311308 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1309 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141310 bool has_cert = !!entry->GetSSL().certificate;
1311 if (is_same_document) {
1312 UMA_HISTOGRAM_BOOLEAN(
1313 "Navigation.SecureSchemeHasSSLStatus."
1314 "ExistingPageSameDocumentIntendedAsNew",
1315 has_cert);
1316 } else {
1317 UMA_HISTOGRAM_BOOLEAN(
1318 "Navigation.SecureSchemeHasSSLStatus."
1319 "ExistingPageDifferentDocumentIntendedAsNew",
1320 has_cert);
1321 }
1322 }
avicbdc4c12015-07-01 16:07:111323 } else if (params.nav_entry_id) {
1324 // This is a browser-initiated navigation (back/forward/reload).
1325 entry = GetEntryWithUniqueID(params.nav_entry_id);
jamd208b90ce2016-09-01 16:58:161326
eugenebut604866f2017-05-10 21:35:361327 if (is_same_document) {
1328 // There's no SSLStatus in the NavigationHandle for same document
1329 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
1330 // this was a restored same document navigation entry, then it won't have
1331 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
1332 // navigated it.
jam48cea9082017-02-15 06:13:291333 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
1334 if (entry->GetURL().GetOrigin() == last_entry->GetURL().GetOrigin() &&
1335 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
1336 was_restored) {
1337 entry->GetSSL() = last_entry->GetSSL();
1338 }
1339 } else {
1340 // When restoring a tab, the serialized NavigationEntry doesn't have the
1341 // SSL state.
John Abd-El-Malekdb06e65d2017-06-08 00:45:331342 // Only copy in the restore case since this code path can be taken during
1343 // navigation. See http://crbug.com/727892
1344 if (was_restored)
1345 entry->GetSSL() = handle->ssl_status();
jam48cea9082017-02-15 06:13:291346 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141347
John Abd-El-Malek380d3c5922017-09-08 00:20:311348 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1349 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141350 bool has_cert = !!entry->GetSSL().certificate;
1351 if (is_same_document && was_restored) {
1352 UMA_HISTOGRAM_BOOLEAN(
1353 "Navigation.SecureSchemeHasSSLStatus."
1354 "ExistingPageSameDocumentRestoredBrowserInitiated",
1355 has_cert);
1356 } else if (is_same_document && !was_restored) {
1357 UMA_HISTOGRAM_BOOLEAN(
1358 "Navigation.SecureSchemeHasSSLStatus."
1359 "ExistingPageSameDocumentBrowserInitiated",
1360 has_cert);
1361 } else if (!is_same_document && was_restored) {
1362 UMA_HISTOGRAM_BOOLEAN(
1363 "Navigation.SecureSchemeHasSSLStatus."
1364 "ExistingPageRestoredBrowserInitiated",
1365 has_cert);
1366 } else {
1367 UMA_HISTOGRAM_BOOLEAN(
1368 "Navigation.SecureSchemeHasSSLStatus.ExistingPageBrowserInitiated",
1369 has_cert);
1370 }
1371 }
avicbdc4c12015-07-01 16:07:111372 } else {
1373 // This is renderer-initiated. The only kinds of renderer-initated
1374 // navigations that are EXISTING_PAGE are reloads and location.replace,
1375 // which land us at the last committed entry.
1376 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101377
eugenebut604866f2017-05-10 21:35:361378 // If this is a same document navigation, then there's no SSLStatus in the
jam0576b132016-09-07 05:13:101379 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361380 if (!is_same_document)
jam0576b132016-09-07 05:13:101381 entry->GetSSL() = handle->ssl_status();
John Abd-El-Malek9cd697e2017-07-12 21:53:141382
John Abd-El-Malek380d3c5922017-09-08 00:20:311383 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1384 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141385 bool has_cert = !!entry->GetSSL().certificate;
1386 if (is_same_document) {
1387 UMA_HISTOGRAM_BOOLEAN(
1388 "Navigation.SecureSchemeHasSSLStatus."
1389 "ExistingPageSameDocumentRendererInitiated",
1390 has_cert);
1391 } else {
1392 UMA_HISTOGRAM_BOOLEAN(
1393 "Navigation.SecureSchemeHasSSLStatus."
1394 "ExistingPageDifferentDocumentRendererInitiated",
1395 has_cert);
1396 }
1397 }
avicbdc4c12015-07-01 16:07:111398 }
1399 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431400
[email protected]5ccd4dc2012-10-24 02:28:141401 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431402 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1403 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041404 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201405 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321406 if (entry->update_virtual_url_with_url())
1407 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141408
jam015ba062017-01-06 21:17:001409 // The site instance will normally be the same except
1410 // 1) session restore, when no site instance will be assigned or
1411 // 2) redirect, when the site instance is reset.
naskoaf182192016-08-11 02:12:011412 DCHECK(entry->site_instance() == nullptr ||
jam015ba062017-01-06 21:17:001413 !entry->GetRedirectChain().empty() ||
naskoaf182192016-08-11 02:12:011414 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431415
naskoaf182192016-08-11 02:12:011416 // Update the existing FrameNavigationEntry to ensure all of its members
1417 // reflect the parameters coming from the renderer process.
1418 entry->AddOrUpdateFrameEntry(
1419 rfh->frame_tree_node(), params.item_sequence_number,
1420 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
arthursonzognie6b67c20b2016-10-04 09:46:041421 params.url, params.referrer, params.redirects, params.page_state,
1422 params.method, params.post_id);
creis22a7b4c2016-04-28 07:20:301423
[email protected]5ccd4dc2012-10-24 02:28:141424 // The redirected to page should not inherit the favicon from the previous
1425 // page.
eugenebut604866f2017-05-10 21:35:361426 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:481427 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141428
[email protected]e9ba4472008-09-14 15:42:431429 // The entry we found in the list might be pending if the user hit
1430 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591431 // list, we can just discard the pending pointer). We should also discard the
1432 // pending entry if it corresponds to a different navigation, since that one
1433 // is now likely canceled. If it is not canceled, we will treat it as a new
1434 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431435 //
1436 // Note that we need to use the "internal" version since we don't want to
1437 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491438 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391439
[email protected]80858db52009-10-15 00:35:181440 // If a transient entry was removed, the indices might have changed, so we
1441 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111442 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431443}
1444
[email protected]d202a7c2012-01-04 07:53:471445void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321446 RenderFrameHostImpl* rfh,
clamy3bf35e3c2016-11-10 15:59:441447 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
1448 NavigationHandleImpl* handle) {
aviaf5660962015-06-30 15:12:291449 // This classification says that we have a pending entry that's the same as
1450 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091451 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291452 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431453
creis77c9aa32015-09-25 19:59:421454 // If we classified this correctly, the SiteInstance should not have changed.
1455 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1456
[email protected]e9ba4472008-09-14 15:42:431457 // We assign the entry's unique ID to be that of the new one. Since this is
1458 // always the result of a user action, we want to dismiss infobars, etc. like
1459 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421460 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511461 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431462
[email protected]a0e69262009-06-03 19:08:481463 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431464 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1465 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321466 if (existing_entry->update_virtual_url_with_url())
1467 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041468 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481469
jamd208b90ce2016-09-01 16:58:161470 // If a user presses enter in the omnibox and the server redirects, the URL
1471 // might change (but it's still considered a SAME_PAGE navigation). So we must
1472 // update the SSL status.
clamy3bf35e3c2016-11-10 15:59:441473 existing_entry->GetSSL() = handle->ssl_status();
jamd208b90ce2016-09-01 16:58:161474
John Abd-El-Malek509dfd62017-09-05 21:34:491475 if (existing_entry->GetURL().SchemeIs(url::kHttpsScheme) &&
John Abd-El-Malek380d3c5922017-09-08 00:20:311476 !rfh->GetParent() && handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141477 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.SamePage",
1478 !!existing_entry->GetSSL().certificate);
1479 }
1480
jianlid26f6c92016-10-12 21:03:171481 // The extra headers may have changed due to reloading with different headers.
1482 existing_entry->set_extra_headers(pending_entry_->extra_headers());
1483
naskoaf182192016-08-11 02:12:011484 // Update the existing FrameNavigationEntry to ensure all of its members
1485 // reflect the parameters coming from the renderer process.
1486 existing_entry->AddOrUpdateFrameEntry(
1487 rfh->frame_tree_node(), params.item_sequence_number,
1488 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
arthursonzognie6b67c20b2016-10-04 09:46:041489 params.url, params.referrer, params.redirects, params.page_state,
1490 params.method, params.post_id);
[email protected]b77686522013-12-11 20:34:191491
[email protected]cbab76d2008-10-13 22:42:471492 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431493}
1494
[email protected]d202a7c2012-01-04 07:53:471495void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321496 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521497 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361498 bool is_same_document,
creis1857908a2016-02-25 20:31:521499 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261500 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1501 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111502
[email protected]e9ba4472008-09-14 15:42:431503 // Manual subframe navigations just get the current entry cloned so the user
1504 // can go back or forward to it. The actual subframe information will be
1505 // stored in the page state for each of those entries. This happens out of
1506 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091507 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1508 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381509
creisce0ef3572017-01-26 17:53:081510 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1511 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
1512 params.frame_unique_name, params.item_sequence_number,
1513 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1514 params.url, params.referrer, params.method, params.post_id));
1515 std::unique_ptr<NavigationEntryImpl> new_entry =
1516 GetLastCommittedEntry()->CloneAndReplace(
eugenebut604866f2017-05-10 21:35:361517 frame_entry.get(), is_same_document, rfh->frame_tree_node(),
creisce0ef3572017-01-26 17:53:081518 delegate_->GetFrameTree()->root());
creise062d542015-08-25 02:01:551519
creisce0ef3572017-01-26 17:53:081520 // TODO(creis): Update this to add the frame_entry if we can't find the one
1521 // to replace, which can happen due to a unique name change. See
1522 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1523 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381524
creis1857908a2016-02-25 20:31:521525 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431526}
1527
[email protected]d202a7c2012-01-04 07:53:471528bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321529 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221530 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291531 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1532 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1533
[email protected]e9ba4472008-09-14 15:42:431534 // We're guaranteed to have a previously committed entry, and we now need to
1535 // handle navigation inside of a subframe in it without creating a new entry.
1536 DCHECK(GetLastCommittedEntry());
1537
creis913c63ce2016-07-16 19:52:521538 // For newly created subframes, we don't need to send a commit notification.
1539 // This is only necessary for history navigations in subframes.
1540 bool send_commit_notification = false;
1541
1542 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1543 // a history navigation. Update the last committed index accordingly.
1544 // If we don't recognize the |nav_entry_id|, it might be a recently pruned
1545 // entry. We'll handle it below.
avi98405c22015-05-21 20:47:061546 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511547 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
creis3cdc3b02015-05-29 23:00:471548 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061549 // Make sure that a subframe commit isn't changing the main frame's
1550 // origin. Otherwise the renderer process may be confused, leading to a
1551 // URL spoof. We can't check the path since that may change
1552 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:571553 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
1554 // about:blank, file, and unique origins are more subtle to get right.
1555 // We'll abstract out the relevant checks from IsURLInPageNavigation and
1556 // share them here. See https://crbug.com/618104.
1557 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
1558 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
1559 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
1560 dest_top_url.SchemeIsHTTPOrHTTPS() &&
1561 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511562 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1563 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061564 }
creis3cdc3b02015-05-29 23:00:471565
creis913c63ce2016-07-16 19:52:521566 // We only need to discard the pending entry in this history navigation
1567 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:061568 last_committed_entry_index_ = entry_index;
1569 DiscardNonCommittedEntriesInternal();
creis913c63ce2016-07-16 19:52:521570
1571 // History navigations should send a commit notification.
1572 send_commit_notification = true;
avi98405c22015-05-21 20:47:061573 }
[email protected]e9ba4472008-09-14 15:42:431574 }
[email protected]f233e4232013-02-23 00:55:141575
creisce0ef3572017-01-26 17:53:081576 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1577 // it may be a "history auto" case where we update an existing one.
1578 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
1579 last_committed->AddOrUpdateFrameEntry(
1580 rfh->frame_tree_node(), params.item_sequence_number,
1581 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1582 params.url, params.referrer, params.redirects, params.page_state,
1583 params.method, params.post_id);
creis625a0c7d2015-03-24 23:17:121584
creis913c63ce2016-07-16 19:52:521585 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:431586}
1587
[email protected]d202a7c2012-01-04 07:53:471588int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231589 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031590 for (size_t i = 0; i < entries_.size(); ++i) {
1591 if (entries_[i].get() == entry)
1592 return i;
1593 }
1594 return -1;
[email protected]765b35502008-08-21 00:51:201595}
1596
avidb7d1d22015-06-08 21:21:501597// There are two general cases where a navigation is "in page":
1598// 1. A fragment navigation, in which the url is kept the same except for the
1599// reference fragment.
1600// 2. A history API navigation (pushState and replaceState). This case is
1601// always in-page, but the urls are not guaranteed to match excluding the
1602// fragment. The relevant spec allows pushState/replaceState to any URL on
1603// the same origin.
1604// However, due to reloads, even identical urls are *not* guaranteed to be
1605// in-page navigations, we have to trust the renderer almost entirely.
1606// The one thing we do know is that cross-origin navigations will *never* be
1607// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1608// and assume the renderer is malicious if a cross-origin navigation claims to
1609// be in-page.
creisf164daa2016-06-07 00:17:051610//
1611// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1612// which are likely redundant with each other. Be careful about data URLs vs
1613// about:blank, both of which are unique origins and thus not considered equal.
[email protected]ce760d742012-08-30 22:31:101614bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121615 const GURL& url,
creisf164daa2016-06-07 00:17:051616 const url::Origin& origin,
[email protected]b9d4dfdc2013-08-08 00:25:121617 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231618 RenderFrameHost* rfh) const {
creis225a7432016-06-03 22:56:271619 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501620 GURL last_committed_url;
1621 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271622 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1623 // which might be empty in a new RenderFrameHost after a process swap.
1624 // Here, we care about the last committed URL in the FrameTreeNode,
1625 // regardless of which process it is in.
1626 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501627 } else {
1628 NavigationEntry* last_committed = GetLastCommittedEntry();
1629 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1630 // might Blink say that a navigation is in-page yet there be no last-
1631 // committed entry?
1632 if (!last_committed)
1633 return false;
1634 last_committed_url = last_committed->GetURL();
1635 }
1636
1637 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271638 const url::Origin& committed_origin =
1639 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501640 bool is_same_origin = last_committed_url.is_empty() ||
1641 // TODO(japhet): We should only permit navigations
1642 // originating from about:blank to be in-page if the
1643 // about:blank is the first document that frame loaded.
1644 // We don't have sufficient information to identify
1645 // that case at the moment, so always allow about:blank
1646 // for now.
csharrisona3bd0b32016-10-19 18:40:481647 last_committed_url == url::kAboutBlankURL ||
avidb7d1d22015-06-08 21:21:501648 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051649 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501650 !prefs.web_security_enabled ||
1651 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471652 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501653 if (!is_same_origin && renderer_says_in_page) {
1654 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1655 bad_message::NC_IN_PAGE_NAVIGATION);
1656 }
1657 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431658}
1659
Francois Dorayeaace782017-06-21 16:37:241660void NavigationControllerImpl::CopyStateFrom(const NavigationController& temp,
1661 bool needs_reload) {
[email protected]d202a7c2012-01-04 07:53:471662 const NavigationControllerImpl& source =
1663 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571664 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551665 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571666
[email protected]a26023822011-12-29 00:23:551667 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571668 return; // Nothing new to do.
1669
Francois Dorayeaace782017-06-21 16:37:241670 needs_reload_ = needs_reload;
[email protected]a26023822011-12-29 00:23:551671 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571672
[email protected]fdac6ade2013-07-20 01:06:301673 for (SessionStorageNamespaceMap::const_iterator it =
1674 source.session_storage_namespace_map_.begin();
1675 it != source.session_storage_namespace_map_.end();
1676 ++it) {
1677 SessionStorageNamespaceImpl* source_namespace =
1678 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1679 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1680 }
[email protected]4e6419c2010-01-15 04:50:341681
toyoshim0df1d3a2016-09-09 09:52:481682 FinishRestore(source.last_committed_entry_index_,
1683 RestoreType::CURRENT_SESSION);
[email protected]ce3fa3c2009-04-20 19:55:571684}
1685
[email protected]d202a7c2012-01-04 07:53:471686void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571687 NavigationController* temp,
1688 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161689 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011690 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161691
[email protected]d202a7c2012-01-04 07:53:471692 NavigationControllerImpl* source =
1693 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251694
avi2b177592014-12-10 02:08:021695 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011696 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251697
[email protected]474f8512013-05-31 22:31:161698 // We now have one entry, possibly with a new pending entry. Ensure that
1699 // adding the entries from source won't put us over the limit.
1700 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571701 if (!replace_entry)
1702 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251703
[email protected]47e020a2010-10-15 14:43:371704 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021705 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161706 // since it has not committed in source.
1707 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251708 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551709 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251710 else
1711 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571712
1713 // Ignore the source's current entry if merging with replacement.
1714 // TODO(davidben): This should preserve entries forward of the current
1715 // too. http://crbug.com/317872
1716 if (replace_entry && max_source_index > 0)
1717 max_source_index--;
1718
[email protected]47e020a2010-10-15 14:43:371719 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251720
1721 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551722 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141723
avi2b177592014-12-10 02:08:021724 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1725 GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251726}
1727
[email protected]79368982013-11-13 01:11:011728bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161729 // If there is no last committed entry, we cannot prune. Even if there is a
1730 // pending entry, it may not commit, leaving this WebContents blank, despite
1731 // possibly giving it new entries via CopyStateFromAndPrune.
1732 if (last_committed_entry_index_ == -1)
1733 return false;
[email protected]9350602e2013-02-26 23:27:441734
[email protected]474f8512013-05-31 22:31:161735 // We cannot prune if there is a pending entry at an existing entry index.
1736 // It may not commit, so we have to keep the last committed entry, and thus
1737 // there is no sensible place to keep the pending entry. It is ok to have
1738 // a new pending entry, which can optionally commit as a new navigation.
1739 if (pending_entry_index_ != -1)
1740 return false;
1741
1742 // We should not prune if we are currently showing a transient entry.
1743 if (transient_entry_index_ != -1)
1744 return false;
1745
1746 return true;
1747}
1748
[email protected]79368982013-11-13 01:11:011749void NavigationControllerImpl::PruneAllButLastCommitted() {
1750 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161751
avi2b177592014-12-10 02:08:021752 DCHECK_EQ(0, last_committed_entry_index_);
1753 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441754
avi2b177592014-12-10 02:08:021755 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1756 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441757}
1758
[email protected]79368982013-11-13 01:11:011759void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161760 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011761 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261762
[email protected]474f8512013-05-31 22:31:161763 // Erase all entries but the last committed entry. There may still be a
1764 // new pending entry after this.
1765 entries_.erase(entries_.begin(),
1766 entries_.begin() + last_committed_entry_index_);
1767 entries_.erase(entries_.begin() + 1, entries_.end());
1768 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261769}
1770
[email protected]15f46dc2013-01-24 05:40:241771void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101772 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241773}
1774
[email protected]d1198fd2012-08-13 22:50:191775void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301776 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211777 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191778 if (!session_storage_namespace)
1779 return;
1780
1781 // We can't overwrite an existing SessionStorage without violating spec.
1782 // Attempts to do so may give a tab access to another tab's session storage
1783 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301784 bool successful_insert = session_storage_namespace_map_.insert(
1785 make_pair(partition_id,
1786 static_cast<SessionStorageNamespaceImpl*>(
1787 session_storage_namespace)))
1788 .second;
1789 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191790}
1791
[email protected]aa62afd2014-04-22 19:22:461792bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461793 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101794 !GetLastCommittedEntry() &&
1795 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461796}
1797
[email protected]a26023822011-12-29 00:23:551798SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301799NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1800 std::string partition_id;
1801 if (instance) {
1802 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1803 // this if statement so |instance| must not be NULL.
1804 partition_id =
1805 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1806 browser_context_, instance->GetSiteURL());
1807 }
[email protected]d1198fd2012-08-13 22:50:191808
[email protected]fdac6ade2013-07-20 01:06:301809 // TODO(ajwong): Should this use the |partition_id| directly rather than
1810 // re-lookup via |instance|? http://crbug.com/142685
1811 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031812 BrowserContext::GetStoragePartition(browser_context_, instance);
1813 DOMStorageContextWrapper* context_wrapper =
1814 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1815
1816 SessionStorageNamespaceMap::const_iterator it =
1817 session_storage_namespace_map_.find(partition_id);
1818 if (it != session_storage_namespace_map_.end()) {
1819 // Ensure that this namespace actually belongs to this partition.
1820 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1821 IsFromContext(context_wrapper));
1822 return it->second.get();
1823 }
1824
1825 // Create one if no one has accessed session storage for this partition yet.
[email protected]fdac6ade2013-07-20 01:06:301826 SessionStorageNamespaceImpl* session_storage_namespace =
michaelnbacbcbd2016-02-09 00:32:031827 new SessionStorageNamespaceImpl(context_wrapper);
[email protected]fdac6ade2013-07-20 01:06:301828 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1829
1830 return session_storage_namespace;
1831}
1832
1833SessionStorageNamespace*
1834NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1835 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1836 return GetSessionStorageNamespace(NULL);
1837}
1838
1839const SessionStorageNamespaceMap&
1840NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1841 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551842}
[email protected]d202a7c2012-01-04 07:53:471843
1844bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561845 return needs_reload_;
1846}
[email protected]a26023822011-12-29 00:23:551847
[email protected]46bb5e9c2013-10-03 22:16:471848void NavigationControllerImpl::SetNeedsReload() {
1849 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541850
1851 if (last_committed_entry_index_ != -1) {
1852 entries_[last_committed_entry_index_]->SetTransitionType(
1853 ui::PAGE_TRANSITION_RELOAD);
1854 }
[email protected]46bb5e9c2013-10-03 22:16:471855}
1856
[email protected]d202a7c2012-01-04 07:53:471857void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551858 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121859 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311860
1861 DiscardNonCommittedEntries();
1862
1863 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121864 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311865 last_committed_entry_index_--;
1866}
1867
[email protected]d202a7c2012-01-04 07:53:471868void NavigationControllerImpl::DiscardNonCommittedEntries() {
pdr15f5b5b2017-06-20 00:58:001869 bool transient = transient_entry_index_ != -1;
[email protected]cbab76d2008-10-13 22:42:471870 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291871
pdr15f5b5b2017-06-20 00:58:001872 // If there was a transient entry, invalidate everything so the new active
1873 // entry state is shown.
1874 if (transient) {
1875 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471876 }
initial.commit09911bf2008-07-26 23:55:291877}
1878
creis3da03872015-02-20 21:12:321879NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
arthursonzogni5c4c202d2017-04-25 23:41:271880 // If there is no pending_entry_, there should be no pending_entry_index_.
1881 DCHECK(pending_entry_ || pending_entry_index_ == -1);
1882
1883 // If there is a pending_entry_index_, then pending_entry_ must be the entry
1884 // at that index.
1885 DCHECK(pending_entry_index_ == -1 ||
1886 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
1887
[email protected]022af742011-12-28 18:37:251888 return pending_entry_;
1889}
1890
[email protected]d202a7c2012-01-04 07:53:471891int NavigationControllerImpl::GetPendingEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:271892 // The pending entry index must always be less than the number of entries.
1893 // If there are no entries, it must be exactly -1.
1894 DCHECK_LT(pending_entry_index_, GetEntryCount());
1895 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:551896 return pending_entry_index_;
1897}
1898
avi25764702015-06-23 15:43:371899void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:571900 std::unique_ptr<NavigationEntryImpl> entry,
1901 bool replace) {
mastiz7eddb5f72016-06-23 09:52:451902 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
1903 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:201904
avi5cad4912015-06-19 05:25:441905 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1906 // need to keep continuity with the pending entry, so copy the pending entry's
1907 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1908 // then the renderer navigated on its own, independent of the pending entry,
1909 // so don't copy anything.
1910 if (pending_entry_ && pending_entry_index_ == -1)
1911 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201912
[email protected]cbab76d2008-10-13 22:42:471913 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201914
1915 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221916
1917 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181918 if (replace && current_size > 0) {
dcheng36b6aec92015-12-26 06:16:361919 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221920 return;
1921 }
[email protected]765b35502008-08-21 00:51:201922
creis37979a62015-08-04 19:48:181923 // We shouldn't see replace == true when there's no committed entries.
1924 DCHECK(!replace);
1925
[email protected]765b35502008-08-21 00:51:201926 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451927 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311928 // last_committed_entry_index_ must be updated here since calls to
1929 // NotifyPrunedEntries() below may re-enter and we must make sure
1930 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491931 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311932 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491933 num_pruned++;
[email protected]765b35502008-08-21 00:51:201934 entries_.pop_back();
1935 current_size--;
1936 }
[email protected]c12bf1a12008-09-17 16:28:491937 if (num_pruned > 0) // Only notify if we did prune something.
1938 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201939 }
1940
[email protected]944822b2012-03-02 20:57:251941 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201942
dcheng36b6aec92015-12-26 06:16:361943 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201944 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:291945}
1946
[email protected]944822b2012-03-02 20:57:251947void NavigationControllerImpl::PruneOldestEntryIfFull() {
1948 if (entries_.size() >= max_entry_count()) {
1949 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021950 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251951 RemoveEntryAtIndex(0);
1952 NotifyPrunedEntries(this, true, 1);
1953 }
1954}
1955
[email protected]d202a7c2012-01-04 07:53:471956void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
arthursonzogni5c4c202d2017-04-25 23:41:271957 DCHECK(pending_entry_);
[email protected]72097fd02010-01-21 23:36:011958 needs_reload_ = false;
1959
[email protected]83c2e232011-10-07 21:36:461960 // If we were navigating to a slow-to-commit page, and the user performs
1961 // a session history navigation to the last committed page, RenderViewHost
1962 // will force the throbber to start, but WebKit will essentially ignore the
1963 // navigation, and won't send a message to stop the throbber. To prevent this
1964 // from happening, we drop the navigation here and stop the slow-to-commit
1965 // page from loading (which would normally happen during the navigation).
1966 if (pending_entry_index_ != -1 &&
1967 pending_entry_index_ == last_committed_entry_index_ &&
arthursonzogni5c4c202d2017-04-25 23:41:271968 pending_entry_->restore_type() == RestoreType::NONE &&
1969 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
[email protected]ec6c05f2013-10-23 18:41:571970 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121971
avi668f5232017-06-22 22:52:171972 // If an interstitial page is showing, we want to close it to get back to
1973 // what was showing before.
1974 //
1975 // There are two ways to get the interstitial page given a WebContents.
1976 // Because WebContents::GetInterstitialPage() returns null between the
1977 // interstitial's Show() method being called and the interstitial becoming
1978 // visible, while InterstitialPage::GetInterstitialPage() returns the
1979 // interstitial during that time, use the latter.
1980 InterstitialPage* interstitial =
1981 InterstitialPage::GetInterstitialPage(GetWebContents());
1982 if (interstitial)
1983 interstitial->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121984
[email protected]83c2e232011-10-07 21:36:461985 DiscardNonCommittedEntries();
1986 return;
1987 }
1988
[email protected]6a13a6c2011-12-20 21:47:121989 // If an interstitial page is showing, the previous renderer is blocked and
1990 // cannot make new requests. Unblock (and disable) it to allow this
1991 // navigation to succeed. The interstitial will stay visible until the
1992 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571993 if (delegate_->GetInterstitialPage()) {
ananta3bdd8ae2016-12-22 17:11:551994 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
1995 ->CancelForNavigation();
[email protected]cadaec52012-02-08 21:53:131996 }
[email protected]6a13a6c2011-12-20 21:47:121997
ananta3bdd8ae2016-12-22 17:11:551998 // The last navigation is the last pending navigation which hasn't been
1999 // committed yet, or the last committed navigation.
2000 NavigationEntryImpl* last_navigation =
2001 last_pending_entry_ ? last_pending_entry_ : GetLastCommittedEntry();
2002
2003 // Convert Enter-in-omnibox to a reload. This is what Blink does in
2004 // FrameLoader, but we want to handle it here so that if the navigation is
2005 // redirected or handled purely on the browser side in PlzNavigate we have the
arthursonzogni5c4c202d2017-04-25 23:41:272006 // same behaviour as Blink would.
2007 if (reload_type == ReloadType::NONE && last_navigation &&
2008 // When |pending_entry_index_| is different from -1, it means this is an
2009 // history navigation. History navigation mustn't be converted to a
2010 // reload.
2011 pending_entry_index_ == -1 &&
ananta3bdd8ae2016-12-22 17:11:552012 // Please refer to the ShouldTreatNavigationAsReload() function for info
2013 // on which navigations are treated as reloads. In general navigating to
2014 // the last committed or pending entry via the address bar, clicking on
2015 // a link, etc would be treated as reloads.
2016 ShouldTreatNavigationAsReload(pending_entry_) &&
2017 // Skip entries with SSL errors.
2018 !last_navigation->ssl_error() &&
2019 // Ignore interstitial pages
2020 last_transient_entry_index_ == -1 &&
2021 pending_entry_->frame_tree_node_id() == -1 &&
2022 pending_entry_->GetURL() == last_navigation->GetURL() &&
2023 !pending_entry_->GetHasPostData() && !last_navigation->GetHasPostData() &&
2024 // This check is required for cases like view-source:, etc. Here the URL
2025 // of the navigation entry would contain the url of the page, while the
2026 // virtual URL contains the full URL including the view-source prefix.
2027 last_navigation->GetVirtualURL() == pending_entry_->GetVirtualURL() &&
2028 // This check is required for Android WebView loadDataWithBaseURL. Apps
2029 // can pass in anything in the base URL and we need to ensure that these
2030 // match before classifying it as a reload.
2031 (pending_entry_->GetURL().SchemeIs(url::kDataScheme) &&
2032 pending_entry_->GetBaseURLForDataURL().is_valid()
2033 ? pending_entry_->GetBaseURLForDataURL() ==
2034 last_navigation->GetBaseURLForDataURL()
2035 : true)) {
2036 reload_type = ReloadType::NORMAL;
2037 }
2038
2039 if (last_pending_entry_index_ == -1 && last_pending_entry_)
2040 delete last_pending_entry_;
2041
2042 last_transient_entry_index_ = -1;
2043 last_pending_entry_ = nullptr;
2044 last_pending_entry_index_ = -1;
2045
creiscf40d9c2015-09-11 18:20:542046 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
2047 // renderer process is not live, unless it is the initial navigation of the
2048 // tab.
2049 if (IsRendererDebugURL(pending_entry_->GetURL())) {
2050 // TODO(creis): Find the RVH for the correct frame.
2051 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
2052 !IsInitialNavigation()) {
2053 DiscardNonCommittedEntries();
2054 return;
2055 }
2056 }
2057
[email protected]40fd3032014-02-28 22:16:282058 // This call does not support re-entrancy. See http://crbug.com/347742.
2059 CHECK(!in_navigate_to_pending_entry_);
2060 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:302061 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:282062 in_navigate_to_pending_entry_ = false;
2063
2064 if (!success)
[email protected]cbab76d2008-10-13 22:42:472065 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:292066}
2067
creis4e2ecb72015-06-20 00:46:302068bool NavigationControllerImpl::NavigateToPendingEntryInternal(
2069 ReloadType reload_type) {
2070 DCHECK(pending_entry_);
2071 FrameTreeNode* root = delegate_->GetFrameTree()->root();
2072
creisce0ef3572017-01-26 17:53:082073 // Compare FrameNavigationEntries to see which frames in the tree need to be
2074 // navigated.
creis4e2ecb72015-06-20 00:46:302075 FrameLoadVector same_document_loads;
2076 FrameLoadVector different_document_loads;
2077 if (GetLastCommittedEntry()) {
2078 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
2079 }
2080
2081 if (same_document_loads.empty() && different_document_loads.empty()) {
2082 // If we don't have any frames to navigate at this point, either
2083 // (1) there is no previous history entry to compare against, or
2084 // (2) we were unable to match any frames by name. In the first case,
2085 // doing a different document navigation to the root item is the only valid
2086 // thing to do. In the second case, we should have been able to find a
2087 // frame to navigate based on names if this were a same document
2088 // navigation, so we can safely assume this is the different document case.
2089 different_document_loads.push_back(
2090 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
2091 }
2092
2093 // If all the frame loads fail, we will discard the pending entry.
2094 bool success = false;
2095
2096 // Send all the same document frame loads before the different document loads.
2097 for (const auto& item : same_document_loads) {
2098 FrameTreeNode* frame = item.first;
2099 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
2100 reload_type, true);
2101 }
2102 for (const auto& item : different_document_loads) {
2103 FrameTreeNode* frame = item.first;
2104 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
2105 reload_type, false);
2106 }
2107 return success;
2108}
2109
2110void NavigationControllerImpl::FindFramesToNavigate(
2111 FrameTreeNode* frame,
2112 FrameLoadVector* same_document_loads,
2113 FrameLoadVector* different_document_loads) {
2114 DCHECK(pending_entry_);
2115 DCHECK_GE(last_committed_entry_index_, 0);
2116 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:272117 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
2118 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:302119 FrameNavigationEntry* old_item =
2120 GetLastCommittedEntry()->GetFrameEntry(frame);
2121 if (!new_item)
2122 return;
2123
2124 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:562125 // sequence number in the same SiteInstance. Newly restored items may not have
2126 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:302127 if (!old_item ||
2128 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:562129 (new_item->site_instance() != nullptr &&
2130 new_item->site_instance() != old_item->site_instance())) {
creis54131692016-08-12 18:32:252131 // Same document loads happen if the previous item has the same document
2132 // sequence number. Note that we should treat them as different document if
2133 // the destination RenderFrameHost (which is necessarily the current
2134 // RenderFrameHost for same document navigations) doesn't have a last
2135 // committed page. This case can happen for Ctrl+Back or after a renderer
2136 // crash.
creis4e2ecb72015-06-20 00:46:302137 if (old_item &&
2138 new_item->document_sequence_number() ==
creis54131692016-08-12 18:32:252139 old_item->document_sequence_number() &&
2140 !frame->current_frame_host()->last_committed_url().is_empty()) {
creis4e2ecb72015-06-20 00:46:302141 same_document_loads->push_back(std::make_pair(frame, new_item));
avib48cb312016-05-05 21:35:002142
2143 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
2144 // should continue on and navigate all child frames which have also
2145 // changed. This bug is the cause of <https://crbug.com/542299>, which is
2146 // a NC_IN_PAGE_NAVIGATION renderer kill.
2147 //
2148 // However, this bug is a bandaid over a deeper and worse problem. Doing a
2149 // pushState immediately after loading a subframe is a race, one that no
2150 // web page author expects. If we fix this bug, many large websites break.
2151 // For example, see <https://crbug.com/598043> and the spec discussion at
2152 // <https://github.com/whatwg/html/issues/1191>.
2153 //
2154 // For now, we accept this bug, and hope to resolve the race in a
2155 // different way that will one day allow us to fix this.
2156 return;
creis4e2ecb72015-06-20 00:46:302157 } else {
2158 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:582159 // For a different document, the subframes will be destroyed, so there's
2160 // no need to consider them.
2161 return;
creis4e2ecb72015-06-20 00:46:302162 }
creis4e2ecb72015-06-20 00:46:302163 }
2164
2165 for (size_t i = 0; i < frame->child_count(); i++) {
2166 FindFramesToNavigate(frame->child_at(i), same_document_loads,
2167 different_document_loads);
2168 }
2169}
2170
[email protected]d202a7c2012-01-04 07:53:472171void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:212172 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:272173 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:402174
[email protected]2db9bd72012-04-13 20:20:562175 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:402176 // location bar will have up-to-date information about the security style
2177 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:132178 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:402179
[email protected]7f924832014-08-09 05:57:222180 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:572181 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:462182
[email protected]b0f724c2013-09-05 04:21:132183 // TODO(avi): Remove. http://crbug.com/170921
2184 NotificationDetails notification_details =
2185 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:212186 NotificationService::current()->Notify(
2187 NOTIFICATION_NAV_ENTRY_COMMITTED,
2188 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:402189 notification_details);
initial.commit09911bf2008-07-26 23:55:292190}
2191
initial.commit09911bf2008-07-26 23:55:292192// static
[email protected]d202a7c2012-01-04 07:53:472193size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:232194 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
2195 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:212196 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:232197}
2198
[email protected]d202a7c2012-01-04 07:53:472199void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:222200 if (is_active && needs_reload_)
2201 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:292202}
2203
[email protected]d202a7c2012-01-04 07:53:472204void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:292205 if (!needs_reload_)
2206 return;
2207
initial.commit09911bf2008-07-26 23:55:292208 // Calling Reload() results in ignoring state, and not loading.
2209 // Explicitly use NavigateToPendingEntry so that the renderer uses the
2210 // cached state.
avicc872d7242015-08-19 21:26:342211 if (pending_entry_) {
toyoshim0df1d3a2016-09-09 09:52:482212 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342213 } else if (last_committed_entry_index_ != -1) {
arthursonzogni5c4c202d2017-04-25 23:41:272214 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:342215 pending_entry_index_ = last_committed_entry_index_;
toyoshim0df1d3a2016-09-09 09:52:482216 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342217 } else {
2218 // If there is something to reload, the successful reload will clear the
2219 // |needs_reload_| flag. Otherwise, just do it here.
2220 needs_reload_ = false;
2221 }
initial.commit09911bf2008-07-26 23:55:292222}
2223
avi47179332015-05-20 21:01:112224void NavigationControllerImpl::NotifyEntryChanged(
2225 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:212226 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:092227 det.changed_entry = entry;
avi47179332015-05-20 21:01:112228 det.index = GetIndexOfEntry(
2229 NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:142230 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:292231}
2232
[email protected]d202a7c2012-01-04 07:53:472233void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:362234 RestoreType type) {
[email protected]a26023822011-12-29 00:23:552235 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:362236 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:292237
initial.commit09911bf2008-07-26 23:55:292238 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:292239}
[email protected]765b35502008-08-21 00:51:202240
[email protected]d202a7c2012-01-04 07:53:472241void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:452242 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:482243 DiscardTransientEntry();
2244}
2245
avi45a72532015-04-07 21:01:452246void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:282247 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:402248 // progress, since this will cause a use-after-free. (We only allow this
2249 // when the tab is being destroyed for shutdown, since it won't return to
2250 // NavigateToEntry in that case.) http://crbug.com/347742.
2251 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:282252
avi45a72532015-04-07 21:01:452253 if (was_failure && pending_entry_) {
2254 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
avi45a72532015-04-07 21:01:452255 } else {
2256 failed_pending_entry_id_ = 0;
2257 }
2258
arthursonzogni5c4c202d2017-04-25 23:41:272259 if (pending_entry_) {
2260 if (pending_entry_index_ == -1)
2261 delete pending_entry_;
2262 pending_entry_index_ = -1;
2263 pending_entry_ = nullptr;
2264 }
[email protected]cbab76d2008-10-13 22:42:472265}
2266
ananta3bdd8ae2016-12-22 17:11:552267void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
2268 if (pending_entry_)
2269 pending_entry_->set_ssl_error(error);
2270}
2271
[email protected]d202a7c2012-01-04 07:53:472272void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:472273 if (transient_entry_index_ == -1)
2274 return;
[email protected]a0e69262009-06-03 19:08:482275 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:182276 if (last_committed_entry_index_ > transient_entry_index_)
2277 last_committed_entry_index_--;
arthursonzogni5c4c202d2017-04-25 23:41:272278 if (pending_entry_index_ > transient_entry_index_)
2279 pending_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:472280 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:202281}
2282
avi7c6f35e2015-05-08 17:52:382283int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2284 int nav_entry_id) const {
2285 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2286 if (entries_[i]->GetUniqueID() == nav_entry_id)
2287 return i;
2288 }
2289 return -1;
2290}
2291
creis3da03872015-02-20 21:12:322292NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472293 if (transient_entry_index_ == -1)
2294 return NULL;
avif16f85a72015-11-13 18:25:032295 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472296}
[email protected]e1cd5452010-08-26 18:03:252297
avi25764702015-06-23 15:43:372298void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:572299 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212300 // Discard any current transient entry, we can only have one at a time.
2301 int index = 0;
2302 if (last_committed_entry_index_ != -1)
2303 index = last_committed_entry_index_ + 1;
2304 DiscardTransientEntry();
avi25764702015-06-23 15:43:372305 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362306 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
arthursonzogni5c4c202d2017-04-25 23:41:272307 if (pending_entry_index_ >= index)
2308 pending_entry_index_++;
[email protected]0b684262013-02-20 02:18:212309 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222310 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212311}
2312
[email protected]d202a7c2012-01-04 07:53:472313void NavigationControllerImpl::InsertEntriesFrom(
2314 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252315 int max_index) {
[email protected]a26023822011-12-29 00:23:552316 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252317 size_t insert_index = 0;
2318 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352319 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372320 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352321 // TODO(creis): Once we start sharing FrameNavigationEntries between
2322 // NavigationEntries, it will not be safe to share them with another tab.
2323 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252324 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362325 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252326 }
2327 }
arthursonzogni5c4c202d2017-04-25 23:41:272328 DCHECK(pending_entry_index_ == -1 ||
2329 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:252330}
[email protected]c5b88d82012-10-06 17:03:332331
2332void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2333 const base::Callback<base::Time()>& get_timestamp_callback) {
2334 get_timestamp_callback_ = get_timestamp_callback;
2335}
[email protected]8ff00d72012-10-23 19:12:212336
2337} // namespace content