blob: 2356d392d7c226dd1df3134a6fd104d036e4a61f [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"
[email protected]d6def3d2014-05-19 18:55:3244#include "base/metrics/histogram.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"
rsleevic327b48f82015-04-30 02:03:2552#include "components/mime_util/mime_util.h"
jamescookda2505812015-03-20 18:01:1853#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3154#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4155#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0456#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4057#include "content/browser/frame_host/debug_urls.h"
58#include "content/browser/frame_host/interstitial_page_impl.h"
59#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2660#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
csharrison9a9142bc42016-03-01 17:24:0461#include "content/browser/frame_host/navigation_handle_impl.h"
creis4e2ecb72015-06-20 00:46:3062#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3263#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3364#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2265#include "content/common/frame_messages.h"
nickd30fd962015-07-27 21:51:0866#include "content/common/site_isolation_policy.h"
estarka5635c42015-07-14 00:06:5367#include "content/common/ssl_status_serialization.h"
[email protected]0aed2f52011-03-23 18:06:3668#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1169#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1970#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4671#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0072#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3873#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1674#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5875#include "content/public/browser/render_widget_host.h"
76#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3477#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3878#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1979#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3880#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1081#include "content/public/common/content_features.h"
servolkf3955532015-05-16 00:01:5982#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3283#include "net/base/escape.h"
[email protected]9677a3c2012-12-22 04:18:5884#include "skia/ext/platform_canvas.h"
[email protected]cca6f392014-05-28 21:32:2685#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2986
[email protected]8ff00d72012-10-23 19:12:2187namespace content {
[email protected]e9ba4472008-09-14 15:42:4388namespace {
89
90// Invoked when entries have been pruned, or removed. For example, if the
91// current entries are [google, digg, yahoo], with the current entry google,
92// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4793void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4994 bool from_front,
95 int count) {
[email protected]8ff00d72012-10-23 19:12:2196 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4997 details.from_front = from_front;
98 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2199 NotificationService::current()->Notify(
100 NOTIFICATION_NAV_LIST_PRUNED,
101 Source<NavigationController>(nav_controller),
102 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:43103}
104
105// Ensure the given NavigationEntry has a valid state, so that WebKit does not
106// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39107//
[email protected]e9ba4472008-09-14 15:42:43108// An empty state is treated as a new navigation by WebKit, which would mean
109// losing the navigation entries and generating a new navigation entry after
110// this one. We don't want that. To avoid this we create a valid state which
111// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04112void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
113 if (!entry->GetPageState().IsValid())
114 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43115}
116
[email protected]2ca1ea662012-10-04 02:26:36117NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
118 NavigationController::RestoreType type) {
119 switch (type) {
120 case NavigationController::RESTORE_CURRENT_SESSION:
121 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
122 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
123 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
124 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
125 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
126 }
127 NOTREACHED();
128 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
129}
130
[email protected]e9ba4472008-09-14 15:42:43131// Configure all the NavigationEntries in entries for restore. This resets
132// the transition type to reload and makes sure the content state isn't empty.
133void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57134 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
[email protected]2ca1ea662012-10-04 02:26:36135 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43136 for (size_t i = 0; i < entries->size(); ++i) {
137 // Use a transition type of reload so that we don't incorrectly increase
138 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35139 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:36140 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43141 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03142 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43143 }
144}
145
[email protected]bf70edce2012-06-20 22:32:22146// Determines whether or not we should be carrying over a user agent override
147// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21148bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22149 return last_entry && last_entry->GetIsOverridingUserAgent();
150}
151
[email protected]e9ba4472008-09-14 15:42:43152} // namespace
153
[email protected]d202a7c2012-01-04 07:53:47154// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29155
[email protected]23a918b2014-07-15 09:51:36156const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23157
[email protected]765b35502008-08-21 00:51:20158// static
[email protected]d202a7c2012-01-04 07:53:47159size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23160 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20161
[email protected]e6fec472013-05-14 05:29:02162// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20163// when testing.
164static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29165
[email protected]71fde352011-12-29 03:29:56166// static
dcheng9bfa5162016-04-09 01:00:57167std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
168 const GURL& url,
169 const Referrer& referrer,
170 ui::PageTransition transition,
171 bool is_renderer_initiated,
172 const std::string& extra_headers,
173 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05174 // Fix up the given URL before letting it be rewritten, so that any minor
175 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
176 GURL dest_url(url);
177 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
178 browser_context);
179
[email protected]71fde352011-12-29 03:29:56180 // Allow the browser URL handler to rewrite the URL. This will, for example,
181 // remove "view-source:" from the beginning of the URL to get the URL that
182 // will actually be loaded. This real URL won't be shown to the user, just
183 // used internally.
creis94a977f62015-02-18 23:51:05184 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56185 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31186 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56187 &loaded_url, browser_context, &reverse_on_redirect);
188
189 NavigationEntryImpl* entry = new NavigationEntryImpl(
190 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56191 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56192 -1,
193 loaded_url,
194 referrer,
[email protected]fcf75d42013-12-03 20:11:26195 base::string16(),
[email protected]71fde352011-12-29 03:29:56196 transition,
197 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05198 entry->SetVirtualURL(dest_url);
199 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56200 entry->set_update_virtual_url_with_url(reverse_on_redirect);
201 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57202 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56203}
204
[email protected]cdcb1dee2012-01-04 00:46:20205// static
206void NavigationController::DisablePromptOnRepost() {
207 g_check_for_repost = false;
208}
209
[email protected]c5b88d82012-10-06 17:03:33210base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
211 base::Time t) {
212 // If |t| is between the water marks, we're in a run of duplicates
213 // or just getting out of it, so increase the high-water mark to get
214 // a time that probably hasn't been used before and return it.
215 if (low_water_mark_ <= t && t <= high_water_mark_) {
216 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
217 return high_water_mark_;
218 }
219
220 // Otherwise, we're clear of the last duplicate run, so reset the
221 // water marks.
222 low_water_mark_ = high_water_mark_ = t;
223 return t;
224}
225
[email protected]d202a7c2012-01-04 07:53:47226NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57227 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19228 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37229 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20230 pending_entry_(NULL),
avi45a72532015-04-07 21:01:45231 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20232 last_committed_entry_index_(-1),
233 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47234 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57235 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29236 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22237 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57238 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09239 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28240 in_navigate_to_pending_entry_(false),
[email protected]c5b88d82012-10-06 17:03:33241 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31242 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26243 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37244 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29245}
246
[email protected]d202a7c2012-01-04 07:53:47247NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47248 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29249}
250
[email protected]d202a7c2012-01-04 07:53:47251WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57252 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32253}
254
[email protected]d202a7c2012-01-04 07:53:47255BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55256 return browser_context_;
257}
258
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::SetBrowserContext(
260 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20261 browser_context_ = browser_context;
262}
263
[email protected]d202a7c2012-01-04 07:53:47264void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30265 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36266 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57267 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57268 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55269 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57270 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14271 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57272
[email protected]ce3fa3c2009-04-20 19:55:57273 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03274 entries_.reserve(entries->size());
275 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36276 entries_.push_back(
277 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03278
279 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
280 // cleared out safely.
281 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57282
283 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36284 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57285}
286
[email protected]d202a7c2012-01-04 07:53:47287void NavigationControllerImpl::Reload(bool check_for_repost) {
toyoshim8a956ec2016-05-19 07:24:36288 ReloadType type = RELOAD;
289 if (base::FeatureList::IsEnabled(
290 features::kNonValidatingReloadOnNormalReload)) {
291 type = RELOAD_MAIN_RESOURCE;
292 }
293 ReloadInternal(check_for_repost, type);
[email protected]1ccb3568d2010-02-19 10:51:16294}
kinuko1be5023c2015-12-16 02:31:57295void NavigationControllerImpl::ReloadToRefreshContent(bool check_for_repost) {
toyoshimbada0dc92016-05-18 05:35:49296 ReloadType type = RELOAD;
toyoshim86e34ec2016-02-25 08:56:10297 if (base::FeatureList::IsEnabled(
298 features::kNonValidatingReloadOnRefreshContent)) {
toyoshimbada0dc92016-05-18 05:35:49299 type = RELOAD_MAIN_RESOURCE;
kinuko1be5023c2015-12-16 02:31:57300 }
toyoshimbada0dc92016-05-18 05:35:49301 ReloadInternal(check_for_repost, type);
kinuko1be5023c2015-12-16 02:31:57302}
toyoshim7dad4b1182016-04-01 14:28:05303void NavigationControllerImpl::ReloadBypassingCache(bool check_for_repost) {
304 ReloadInternal(check_for_repost, RELOAD_BYPASSING_CACHE);
[email protected]1ccb3568d2010-02-19 10:51:16305}
[email protected]7c16976c2012-08-04 02:38:23306void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
307 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
308}
megjablond5ac7d52015-10-22 23:56:12309void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
310 ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
311}
[email protected]1ccb3568d2010-02-19 10:51:16312
[email protected]d202a7c2012-01-04 07:53:47313void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
314 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36315 if (transient_entry_index_ != -1) {
316 // If an interstitial is showing, treat a reload as a navigation to the
317 // transient entry's URL.
creis3da03872015-02-20 21:12:32318 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27319 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36320 return;
[email protected]6286a3792013-10-09 04:03:27321 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21322 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35323 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27324 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47325 return;
[email protected]669e0ba2012-08-30 23:57:36326 }
[email protected]cbab76d2008-10-13 22:42:47327
[email protected]59167c22013-06-03 18:07:32328 NavigationEntryImpl* entry = NULL;
329 int current_index = -1;
330
331 // If we are reloading the initial navigation, just use the current
332 // pending entry. Otherwise look up the current entry.
333 if (IsInitialNavigation() && pending_entry_) {
334 entry = pending_entry_;
335 // The pending entry might be in entries_ (e.g., after a Clone), so we
336 // should also update the current_index.
337 current_index = pending_entry_index_;
338 } else {
339 DiscardNonCommittedEntriesInternal();
340 current_index = GetCurrentEntryIndex();
341 if (current_index != -1) {
creis3da03872015-02-20 21:12:32342 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32343 }
[email protected]979a4bc2013-04-24 01:27:15344 }
[email protected]241db352013-04-22 18:04:05345
[email protected]59167c22013-06-03 18:07:32346 // If we are no where, then we can't reload. TODO(darin): We should add a
347 // CanReload method.
348 if (!entry)
349 return;
350
[email protected]cdcb1dee2012-01-04 00:46:20351 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32352 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30353 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07354 // they really want to do this. If they do, the dialog will call us back
355 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57356 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02357
[email protected]106a0812010-03-18 00:15:12358 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57359 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29360 } else {
[email protected]59167c22013-06-03 18:07:32361 if (!IsInitialNavigation())
362 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26363
[email protected]bcd904482012-02-01 01:54:22364 // If we are reloading an entry that no longer belongs to the current
365 // site instance (for example, refreshing a page for just installed app),
366 // the reload must happen in a new process.
367 // The new entry must have a new page_id and site instance, so it behaves
368 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30369 // Tabs that are discarded due to low memory conditions may not have a site
370 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32371 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21372 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10373 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
374 site_instance->GetProcess()->IsForGuestsOnly();
375 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30376 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22377 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46378 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22379 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
380 CreateNavigationEntry(
381 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37382 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26383
[email protected]11535962012-02-09 21:02:10384 // Mark the reload type as NO_RELOAD, so navigation will not be considered
385 // a reload in the renderer.
386 reload_type = NavigationController::NO_RELOAD;
387
[email protected]e2caa032012-11-15 23:29:18388 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22389 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46390 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22391 } else {
[email protected]59167c22013-06-03 18:07:32392 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22393 pending_entry_index_ = current_index;
394
395 // The title of the page being reloaded might have been removed in the
396 // meanwhile, so we need to revert to the default title upon reload and
397 // invalidate the previously cached title (SetTitle will do both).
398 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26399 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22400
Sylvain Defresnec6ccc77d2014-09-19 10:19:35401 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22402 }
403
[email protected]1ccb3568d2010-02-19 10:51:16404 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29405 }
406}
407
[email protected]d202a7c2012-01-04 07:53:47408void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12409 DCHECK(pending_reload_ != NO_RELOAD);
410 pending_reload_ = NO_RELOAD;
411}
412
[email protected]d202a7c2012-01-04 07:53:47413void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12414 if (pending_reload_ == NO_RELOAD) {
415 NOTREACHED();
416 } else {
417 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02418 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12419 }
420}
421
[email protected]cd2e15742013-03-08 04:08:31422bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09423 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11424}
425
creis10a4ab72015-10-13 17:22:40426bool NavigationControllerImpl::IsInitialBlankNavigation() const {
427 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
428 // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
429 // exclude the cloned tab case).
430 return IsInitialNavigation() && GetEntryCount() == 0;
431}
432
[email protected]d202a7c2012-01-04 07:53:47433NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
avib7348942015-12-25 20:57:10434 SiteInstance* instance,
435 int32_t page_id) const {
[email protected]7f0005a2009-04-15 03:25:11436 int index = GetEntryIndexWithPageID(instance, page_id);
avif16f85a72015-11-13 18:25:03437 return (index != -1) ? entries_[index].get() : nullptr;
[email protected]765b35502008-08-21 00:51:20438}
439
avi254eff02015-07-01 08:27:58440NavigationEntryImpl*
441NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
442 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03443 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58444}
445
avi25764702015-06-23 15:43:37446void NavigationControllerImpl::LoadEntry(
dcheng9bfa5162016-04-09 01:00:57447 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20448 // When navigating to a new page, we don't know for sure if we will actually
449 // end up leaving the current page. The new page load could for example
450 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36451 SetPendingEntry(std::move(entry));
[email protected]59167c22013-06-03 18:07:32452 NavigateToPendingEntry(NO_RELOAD);
453}
454
avi25764702015-06-23 15:43:37455void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57456 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47457 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37458 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21459 NotificationService::current()->Notify(
460 NOTIFICATION_NAV_ENTRY_PENDING,
461 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37462 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20463}
464
creis3da03872015-02-20 21:12:32465NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47466 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03467 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47468 if (pending_entry_)
469 return pending_entry_;
470 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20471}
472
creis3da03872015-02-20 21:12:32473NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19474 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03475 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32476 // The pending entry is safe to return for new (non-history), browser-
477 // initiated navigations. Most renderer-initiated navigations should not
478 // show the pending entry, to prevent URL spoof attacks.
479 //
480 // We make an exception for renderer-initiated navigations in new tabs, as
481 // long as no other page has tried to access the initial empty document in
482 // the new tab. If another page modifies this blank page, a URL spoof is
483 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32484 bool safe_to_show_pending =
485 pending_entry_ &&
486 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09487 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32488 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46489 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32490
491 // Also allow showing the pending entry for history navigations in a new tab,
492 // such as Ctrl+Back. In this case, no existing page is visible and no one
493 // can script the new tab before it commits.
494 if (!safe_to_show_pending &&
495 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09496 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32497 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34498 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32499 safe_to_show_pending = true;
500
501 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19502 return pending_entry_;
503 return GetLastCommittedEntry();
504}
505
[email protected]d202a7c2012-01-04 07:53:47506int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47507 if (transient_entry_index_ != -1)
508 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20509 if (pending_entry_index_ != -1)
510 return pending_entry_index_;
511 return last_committed_entry_index_;
512}
513
creis3da03872015-02-20 21:12:32514NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20515 if (last_committed_entry_index_ == -1)
516 return NULL;
avif16f85a72015-11-13 18:25:03517 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20518}
519
[email protected]d202a7c2012-01-04 07:53:47520bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57521 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25522 bool is_viewable_mime_type =
523 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59524 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27525 NavigationEntry* visible_entry = GetVisibleEntry();
526 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57527 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16528}
529
[email protected]d202a7c2012-01-04 07:53:47530int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55531 return last_committed_entry_index_;
532}
533
[email protected]d202a7c2012-01-04 07:53:47534int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25535 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55536 return static_cast<int>(entries_.size());
537}
538
creis3da03872015-02-20 21:12:32539NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25540 int index) const {
avi25764702015-06-23 15:43:37541 if (index < 0 || index >= GetEntryCount())
542 return nullptr;
543
avif16f85a72015-11-13 18:25:03544 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25545}
546
creis3da03872015-02-20 21:12:32547NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25548 int offset) const {
avi057ce1492015-06-29 15:59:47549 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20550}
551
[email protected]9ba14052012-06-22 23:50:03552int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46553 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03554}
555
[email protected]9677a3c2012-12-22 04:18:58556void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10557 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58558}
559
[email protected]1a3f5312013-04-26 21:00:10560void NavigationControllerImpl::SetScreenshotManager(
dcheng9bfa5162016-04-09 01:00:57561 std::unique_ptr<NavigationEntryScreenshotManager> manager) {
avi67081d0ae2015-07-27 18:25:46562 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36563 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46564 else
565 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58566}
567
[email protected]d202a7c2012-01-04 07:53:47568bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22569 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20570}
571
[email protected]d202a7c2012-01-04 07:53:47572bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22573 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20574}
575
[email protected]9ba14052012-06-22 23:50:03576bool NavigationControllerImpl::CanGoToOffset(int offset) const {
577 int index = GetIndexForOffset(offset);
578 return index >= 0 && index < GetEntryCount();
579}
580
[email protected]d202a7c2012-01-04 07:53:47581void NavigationControllerImpl::GoBack() {
toyoshim3af4d502016-03-30 12:38:12582 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
583 GoToIndex(GetIndexForOffset(-1));
[email protected]765b35502008-08-21 00:51:20584}
585
[email protected]d202a7c2012-01-04 07:53:47586void NavigationControllerImpl::GoForward() {
toyoshim3af4d502016-03-30 12:38:12587 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
588 GoToIndex(GetIndexForOffset(1));
[email protected]765b35502008-08-21 00:51:20589}
590
[email protected]d202a7c2012-01-04 07:53:47591void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20592 if (index < 0 || index >= static_cast<int>(entries_.size())) {
593 NOTREACHED();
594 return;
595 }
596
[email protected]cbab76d2008-10-13 22:42:47597 if (transient_entry_index_ != -1) {
598 if (index == transient_entry_index_) {
599 // Nothing to do when navigating to the transient.
600 return;
601 }
602 if (index > transient_entry_index_) {
603 // Removing the transient is goint to shift all entries by 1.
604 index--;
605 }
606 }
607
608 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20609
610 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25611 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35612 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51613 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35614 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16615 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20616}
617
[email protected]d202a7c2012-01-04 07:53:47618void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12619 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03620 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20621 return;
622
[email protected]9ba14052012-06-22 23:50:03623 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20624}
625
[email protected]41374f12013-07-24 02:49:28626bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
627 if (index == last_committed_entry_index_ ||
628 index == pending_entry_index_)
629 return false;
[email protected]6a13a6c2011-12-20 21:47:12630
[email protected]43032342011-03-21 14:10:31631 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28632 return true;
[email protected]cbab76d2008-10-13 22:42:47633}
634
[email protected]d202a7c2012-01-04 07:53:47635void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23636 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32637 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31638 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51639 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
640 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32641 }
642}
643
[email protected]d202a7c2012-01-04 07:53:47644void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47645 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21646 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35647 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47648 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47649 LoadURLParams params(url);
650 params.referrer = referrer;
651 params.transition_type = transition;
652 params.extra_headers = extra_headers;
653 LoadURLWithParams(params);
654}
655
656void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43657 TRACE_EVENT1("browser,navigation",
658 "NavigationControllerImpl::LoadURLWithParams",
659 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43660 if (HandleDebugURL(params.url, params.transition_type)) {
661 // If Telemetry is running, allow the URL load to proceed as if it's
662 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49663 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43664 cc::switches::kEnableGpuBenchmarking))
665 return;
666 }
[email protected]8bf1048012012-02-08 01:22:18667
[email protected]cf002332012-08-14 19:17:47668 // Checks based on params.load_type.
669 switch (params.load_type) {
670 case LOAD_TYPE_DEFAULT:
671 break;
672 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19673 if (!params.url.SchemeIs(url::kHttpScheme) &&
674 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47675 NOTREACHED() << "Http post load must use http(s) scheme.";
676 return;
677 }
678 break;
679 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26680 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47681 NOTREACHED() << "Data load must use data scheme.";
682 return;
683 }
684 break;
685 default:
686 NOTREACHED();
687 break;
688 };
[email protected]e47ae9472011-10-13 19:48:34689
[email protected]e47ae9472011-10-13 19:48:34690 // The user initiated a load, we don't need to reload anymore.
691 needs_reload_ = false;
692
[email protected]cf002332012-08-14 19:17:47693 bool override = false;
694 switch (params.override_user_agent) {
695 case UA_OVERRIDE_INHERIT:
696 override = ShouldKeepOverride(GetLastCommittedEntry());
697 break;
698 case UA_OVERRIDE_TRUE:
699 override = true;
700 break;
701 case UA_OVERRIDE_FALSE:
702 override = false;
703 break;
704 default:
705 NOTREACHED();
706 break;
[email protected]d1ef81d2012-07-24 11:39:36707 }
708
dcheng9bfa5162016-04-09 01:00:57709 std::unique_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30710
711 // For subframes, create a pending entry with a corresponding frame entry.
712 int frame_tree_node_id = params.frame_tree_node_id;
713 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
714 FrameTreeNode* node =
715 params.frame_tree_node_id != -1
716 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
717 : delegate_->GetFrameTree()->FindByName(params.frame_name);
718 if (node && !node->IsMainFrame()) {
719 DCHECK(GetLastCommittedEntry());
720
721 // Update the FTN ID to use below in case we found a named frame.
722 frame_tree_node_id = node->frame_tree_node_id();
723
724 // In --site-per-process, create an identical NavigationEntry with a
725 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08726 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30727 entry = GetLastCommittedEntry()->Clone();
728 entry->SetPageID(-1);
naskoc7533512016-05-06 17:01:12729 entry->AddOrUpdateFrameEntry(
730 node, -1, -1, nullptr,
731 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
732 params.url, params.referrer, PageState(), "GET", -1);
creis4e2ecb72015-06-20 00:46:30733 }
734 }
creis6a93a812015-04-24 23:13:17735 }
creis4e2ecb72015-06-20 00:46:30736
737 // Otherwise, create a pending entry for the main frame.
738 if (!entry) {
739 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
740 params.url, params.referrer, params.transition_type,
741 params.is_renderer_initiated, params.extra_headers, browser_context_));
naskoc7533512016-05-06 17:01:12742 entry->set_source_site_instance(
743 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
creis4e2ecb72015-06-20 00:46:30744 }
naskoc7533512016-05-06 17:01:12745
creis4e2ecb72015-06-20 00:46:30746 // Set the FTN ID (only used in non-site-per-process, for tests).
747 entry->set_frame_tree_node_id(frame_tree_node_id);
[email protected]f8872902013-10-30 03:18:57748 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21749 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39750 // Don't allow an entry replacement if there is no entry to replace.
751 // http://crbug.com/457149
752 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18753 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13754 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47755 entry->SetIsOverridingUserAgent(override);
756 entry->set_transferred_global_request_id(
757 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36758
clamy8451aa62015-01-23 16:56:08759#if defined(OS_ANDROID)
760 if (params.intent_received_timestamp > 0) {
761 entry->set_intent_received_timestamp(
762 base::TimeTicks() +
763 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
764 }
qinmin976d4d92015-08-07 18:32:39765 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08766#endif
767
[email protected]cf002332012-08-14 19:17:47768 switch (params.load_type) {
769 case LOAD_TYPE_DEFAULT:
770 break;
771 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
772 entry->SetHasPostData(true);
773 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46774 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47775 break;
776 case LOAD_TYPE_DATA:
777 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
778 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03779#if defined(OS_ANDROID)
780 entry->SetDataURLAsString(params.data_url_as_string);
781#endif
[email protected]951a64832012-10-11 16:26:37782 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47783 break;
784 default:
785 NOTREACHED();
786 break;
787 };
[email protected]132e281a2012-07-31 18:32:44788
dcheng36b6aec92015-12-26 06:16:36789 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44790}
791
creisb4dc9332016-03-14 21:39:19792bool NavigationControllerImpl::PendingEntryMatchesHandle(
793 NavigationHandleImpl* handle) const {
794 return pending_entry_ &&
795 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
796}
797
[email protected]d202a7c2012-01-04 07:53:47798bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32799 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22800 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21801 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31802 is_initial_navigation_ = false;
803
[email protected]0e8db942008-09-24 21:21:48804 // Save the previous state before we clobber it.
805 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51806 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55807 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48808 } else {
809 details->previous_url = GURL();
810 details->previous_entry_index = -1;
811 }
[email protected]ecd9d8702008-08-28 22:10:17812
fdegans9caf66a2015-07-30 21:10:42813 // If there is a pending entry at this point, it should have a SiteInstance,
814 // except for restored entries.
815 DCHECK(pending_entry_index_ == -1 ||
816 pending_entry_->site_instance() ||
817 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
818 if (pending_entry_ &&
819 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
820 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43821
creis865ad442016-03-15 16:43:09822 // The renderer tells us whether the navigation replaces the current entry.
823 details->did_replace_entry = params.should_replace_current_entry;
[email protected]bcd904482012-02-01 01:54:22824
[email protected]e9ba4472008-09-14 15:42:43825 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43826 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20827
[email protected]b9d4dfdc2013-08-08 00:25:12828 // is_in_page must be computed before the entry gets committed.
creisf164daa2016-06-07 00:17:05829 details->is_in_page = IsURLInPageNavigation(params.url, params.origin,
830 params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12831
[email protected]0e8db942008-09-24 21:21:48832 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21833 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43834 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43835 break;
[email protected]8ff00d72012-10-23 19:12:21836 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36837 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43838 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43839 break;
[email protected]8ff00d72012-10-23 19:12:21840 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43841 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43842 break;
[email protected]8ff00d72012-10-23 19:12:21843 case NAVIGATION_TYPE_NEW_SUBFRAME:
creis1857908a2016-02-25 20:31:52844 RendererDidNavigateNewSubframe(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43845 break;
[email protected]8ff00d72012-10-23 19:12:21846 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43847 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43848 return false;
849 break;
[email protected]8ff00d72012-10-23 19:12:21850 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49851 // If a pending navigation was in progress, this canceled it. We should
852 // discard it and make sure it is removed from the URL bar. After that,
853 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43854 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49855 if (pending_entry_) {
856 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57857 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49858 }
[email protected]e9ba4472008-09-14 15:42:43859 return false;
860 default:
861 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20862 }
863
[email protected]688aa65c62012-09-28 04:32:22864 // At this point, we know that the navigation has just completed, so
865 // record the time.
866 //
867 // TODO(akalin): Use "sane time" as described in
868 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33869 base::Time timestamp =
870 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
871 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22872 << timestamp.ToInternalValue();
873
[email protected]f233e4232013-02-23 00:55:14874 // We should not have a pending entry anymore. Clear it again in case any
875 // error cases above forgot to do so.
876 DiscardNonCommittedEntriesInternal();
877
[email protected]e9ba4472008-09-14 15:42:43878 // All committed entries should have nonempty content state so WebKit doesn't
879 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04880 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32881 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22882 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44883 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:12884
885 FrameNavigationEntry* frame_entry =
886 active_entry->GetFrameEntry(rfh->frame_tree_node());
nickd30fd962015-07-27 21:51:08887 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30888 // Update the frame-specific PageState.
creise062d542015-08-25 02:01:55889 // We may not find a frame_entry in some cases; ignore the PageState if so.
890 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
891 if (frame_entry)
892 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30893 } else {
894 active_entry->SetPageState(params.page_state);
895 }
[email protected]c1982ff2014-04-23 03:37:21896 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44897
[email protected]d6def3d2014-05-19 18:55:32898 // Use histogram to track memory impact of redirect chain because it's now
899 // not cleared for committed entries.
900 size_t redirect_chain_size = 0;
901 for (size_t i = 0; i < params.redirects.size(); ++i) {
902 redirect_chain_size += params.redirects[i].spec().length();
903 }
904 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
905
[email protected]97d8f0d2013-10-29 16:49:21906 // Once it is committed, we no longer need to track several pieces of state on
907 // the entry.
naskoc7533512016-05-06 17:01:12908 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:13909
[email protected]49bd30e62011-03-22 20:12:59910 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22911 // TODO(creis): This check won't pass for subframes until we create entries
912 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00913 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42914 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59915
[email protected]b26de072013-02-23 02:33:44916 // Remember the bindings the renderer process has at this point, so that
917 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32918 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44919
[email protected]e9ba4472008-09-14 15:42:43920 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00921 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00922 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31923 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53924
925 // Deserialize the security info and kill the renderer if
926 // deserialization fails. The navigation will continue with default
927 // SSLStatus values.
928 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
929 bad_message::ReceivedBadMessage(
930 rfh->GetProcess(),
931 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
932 }
933
[email protected]93f230e02011-06-01 14:40:00934 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29935
creis03b48002015-11-04 00:54:56936 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
937 // one knows the latest NavigationEntry it is showing (whether it has
938 // committed anything in this navigation or not). This allows things like
939 // state and title updates from RenderFrames to apply to the latest relevant
940 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:38941 int nav_entry_id = active_entry->GetUniqueID();
942 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
943 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:43944 return true;
initial.commit09911bf2008-07-26 23:55:29945}
946
[email protected]8ff00d72012-10-23 19:12:21947NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32948 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22949 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38950 if (params.did_create_new_entry) {
951 // A new entry. We may or may not have a pending entry for the page, and
952 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00953 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38954 return NAVIGATION_TYPE_NEW_PAGE;
955 }
956
957 // When this is a new subframe navigation, we should have a committed page
958 // in which it's a subframe. This may not be the case when an iframe is
959 // navigated on a popup navigated to about:blank (the iframe would be
960 // written into the popup by script on the main page). For these cases,
961 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23962 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:38963 return NAVIGATION_TYPE_NAV_IGNORE;
964
965 // Valid subframe navigation.
966 return NAVIGATION_TYPE_NEW_SUBFRAME;
967 }
968
creis865ad442016-03-15 16:43:09969 // Cross-process location.replace navigations should be classified as New with
970 // replacement rather than ExistingPage, since it is not safe to reuse the
971 // NavigationEntry.
972 // TODO(creis): Have the renderer classify location.replace as
973 // did_create_new_entry for all cases and eliminate this special case. This
creis22a7b4c2016-04-28 07:20:30974 // requires updating several test expectations. See https://crbug.com/596707.
creis865ad442016-03-15 16:43:09975 if (!rfh->GetParent() && GetLastCommittedEntry() &&
976 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance() &&
977 params.should_replace_current_entry) {
978 return NAVIGATION_TYPE_NEW_PAGE;
979 }
980
avi7c6f35e2015-05-08 17:52:38981 // We only clear the session history when navigating to a new page.
982 DCHECK(!params.history_list_was_cleared);
983
avi39c1edd32015-06-04 20:06:00984 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38985 // All manual subframes would be did_create_new_entry and handled above, so
986 // we know this is auto.
987 if (GetLastCommittedEntry()) {
988 return NAVIGATION_TYPE_AUTO_SUBFRAME;
989 } else {
990 // We ignore subframes created in non-committed pages; we'd appreciate if
991 // people stopped doing that.
992 return NAVIGATION_TYPE_NAV_IGNORE;
993 }
994 }
995
996 if (params.nav_entry_id == 0) {
997 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
998 // create a new page.
999
1000 // Just like above in the did_create_new_entry case, it's possible to
1001 // scribble onto an uncommitted page. Again, there isn't any navigation
1002 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231003 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231004 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381005 return NAVIGATION_TYPE_NAV_IGNORE;
1006
avi259dc792015-07-07 04:42:361007 // This is history.replaceState(), history.reload(), or a client-side
1008 // redirect.
1009 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381010 }
1011
1012 if (pending_entry_ && pending_entry_index_ == -1 &&
1013 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1014 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421015 // didn't do a new navigation (params.did_create_new_entry). First check to
1016 // make sure Blink didn't treat a new cross-process navigation as inert, and
1017 // thus set params.did_create_new_entry to false. In that case, we must
1018 // treat it as NEW since the SiteInstance doesn't match the entry.
1019 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1020 return NAVIGATION_TYPE_NEW_PAGE;
1021
1022 // Otherwise, this happens when you press enter in the URL bar to reload. We
1023 // will create a pending entry, but Blink will convert it to a reload since
1024 // it's the same page and not create a new entry for it (the user doesn't
1025 // want to have a new back/forward entry when they do this). Therefore we
1026 // want to just ignore the pending entry and go back to where we were (the
1027 // "existing entry").
1028 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381029 return NAVIGATION_TYPE_SAME_PAGE;
1030 }
1031
1032 if (params.intended_as_new_entry) {
1033 // This was intended to be a navigation to a new entry but the pending entry
1034 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1035 // may not have a pending entry.
1036 return NAVIGATION_TYPE_EXISTING_PAGE;
1037 }
1038
1039 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1040 params.nav_entry_id == failed_pending_entry_id_) {
1041 // If the renderer was going to a new pending entry that got cleared because
1042 // of an error, this is the case of the user trying to retry a failed load
1043 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1044 // have a pending entry.
1045 return NAVIGATION_TYPE_EXISTING_PAGE;
1046 }
1047
1048 // Now we know that the notification is for an existing page. Find that entry.
1049 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1050 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441051 // The renderer has committed a navigation to an entry that no longer
1052 // exists. Because the renderer is showing that page, resurrect that entry.
1053 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381054 }
1055
avi7c6f35e2015-05-08 17:52:381056 // Since we weeded out "new" navigations above, we know this is an existing
1057 // (back/forward) navigation.
1058 return NAVIGATION_TYPE_EXISTING_PAGE;
1059}
1060
[email protected]d202a7c2012-01-04 07:53:471061void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321062 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221063 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221064 bool replace_entry) {
dcheng9bfa5162016-04-09 01:00:571065 std::unique_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411066 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341067 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041068 // that was just loaded. Verify this by checking if the entry corresponds
1069 // to the current navigation handle. Note that in some tests the render frame
1070 // host does not have a valid handle. Additionally, coarsely check that:
1071 // 1. The SiteInstance hasn't been assigned to something else.
1072 // 2. The pending entry was intended as a new entry, rather than being a
1073 // history navigation that was interrupted by an unrelated,
1074 // renderer-initiated navigation.
1075 // TODO(csharrison): Investigate whether we can remove some of the coarser
1076 // checks.
1077 NavigationHandleImpl* handle = rfh->navigation_handle();
creisb4dc9332016-03-14 21:39:191078 DCHECK(handle);
1079 if (PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341080 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431081 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351082 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431083
[email protected]f1eb87a2011-05-06 17:49:411084 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431085 } else {
dcheng9bfa5162016-04-09 01:00:571086 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241087
1088 // Find out whether the new entry needs to update its virtual URL on URL
1089 // change and set up the entry accordingly. This is needed to correctly
1090 // update the virtual URL when replaceState is called after a pushState.
1091 GURL url = params.url;
1092 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431093 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1094 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241095 new_entry->set_update_virtual_url_with_url(needs_update);
1096
[email protected]f1eb87a2011-05-06 17:49:411097 // When navigating to a new page, give the browser URL handler a chance to
1098 // update the virtual URL based on the new URL. For example, this is needed
1099 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1100 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241101 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431102 }
1103
wjmaclean7431bb22015-02-19 14:53:431104 // Don't use the page type from the pending entry. Some interstitial page
1105 // may have set the type to interstitial. Once we commit, however, the page
1106 // type must always be normal or error.
1107 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1108 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041109 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411110 if (update_virtual_url)
avi25764702015-06-23 15:43:371111 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251112 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511113 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251114 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331115 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431116 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231117 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221118 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431119
creis8b5cd4c2015-06-19 00:11:081120 // Update the FrameNavigationEntry for new main frame commits.
1121 FrameNavigationEntry* frame_entry =
1122 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431123 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081124 frame_entry->set_item_sequence_number(params.item_sequence_number);
1125 frame_entry->set_document_sequence_number(params.document_sequence_number);
clamy432acb22016-04-15 19:41:431126 frame_entry->set_method(params.method);
1127 frame_entry->set_post_id(params.post_id);
creis8b5cd4c2015-06-19 00:11:081128
[email protected]ff64b3e2014-05-31 04:07:331129 // history.pushState() is classified as a navigation to a new page, but
1130 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191131 // title and favicon available, so set them immediately.
1132 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331133 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191134 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1135 }
[email protected]ff64b3e2014-05-31 04:07:331136
[email protected]60d6cca2013-04-30 08:47:131137 DCHECK(!params.history_list_was_cleared || !replace_entry);
1138 // The browser requested to clear the session history when it initiated the
1139 // navigation. Now we know that the renderer has updated its state accordingly
1140 // and it is safe to also clear the browser side history.
1141 if (params.history_list_was_cleared) {
1142 DiscardNonCommittedEntriesInternal();
1143 entries_.clear();
1144 last_committed_entry_index_ = -1;
1145 }
1146
dcheng36b6aec92015-12-26 06:16:361147 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431148}
1149
[email protected]d202a7c2012-01-04 07:53:471150void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321151 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221152 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431153 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001154 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431155
avicbdc4c12015-07-01 16:07:111156 NavigationEntryImpl* entry;
1157 if (params.intended_as_new_entry) {
1158 // This was intended as a new entry but the pending entry was lost in the
1159 // meanwhile and no new page was created. We are stuck at the last committed
1160 // entry.
1161 entry = GetLastCommittedEntry();
1162 } else if (params.nav_entry_id) {
1163 // This is a browser-initiated navigation (back/forward/reload).
1164 entry = GetEntryWithUniqueID(params.nav_entry_id);
1165 } else {
1166 // This is renderer-initiated. The only kinds of renderer-initated
1167 // navigations that are EXISTING_PAGE are reloads and location.replace,
1168 // which land us at the last committed entry.
1169 entry = GetLastCommittedEntry();
1170 }
1171 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431172
[email protected]5ccd4dc2012-10-24 02:28:141173 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431174 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1175 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041176 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201177 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321178 if (entry->update_virtual_url_with_url())
1179 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141180
clamy432acb22016-04-15 19:41:431181 // Update the post parameters.
1182 FrameNavigationEntry* frame_entry =
1183 entry->GetFrameEntry(rfh->frame_tree_node());
1184 frame_entry->set_method(params.method);
1185 frame_entry->set_post_id(params.post_id);
1186
creis22a7b4c2016-04-28 07:20:301187 // Update the ISN and DSN in case this was a location.replace, which can cause
1188 // them to change.
1189 // TODO(creis): Classify location.replace as NEW_PAGE instead of EXISTING_PAGE
1190 // in https://crbug.com/596707.
1191 frame_entry->set_item_sequence_number(params.item_sequence_number);
1192 frame_entry->set_document_sequence_number(params.document_sequence_number);
1193
[email protected]5ccd4dc2012-10-24 02:28:141194 // The redirected to page should not inherit the favicon from the previous
1195 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351196 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481197 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141198
1199 // The site instance will normally be the same except during session restore,
1200 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421201 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431202 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331203 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431204 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431205
[email protected]e9ba4472008-09-14 15:42:431206 // The entry we found in the list might be pending if the user hit
1207 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591208 // list, we can just discard the pending pointer). We should also discard the
1209 // pending entry if it corresponds to a different navigation, since that one
1210 // is now likely canceled. If it is not canceled, we will treat it as a new
1211 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431212 //
1213 // Note that we need to use the "internal" version since we don't want to
1214 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491215 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391216
[email protected]80858db52009-10-15 00:35:181217 // If a transient entry was removed, the indices might have changed, so we
1218 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111219 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431220}
1221
[email protected]d202a7c2012-01-04 07:53:471222void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321223 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221224 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291225 // This classification says that we have a pending entry that's the same as
1226 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091227 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291228 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431229
creis77c9aa32015-09-25 19:59:421230 // If we classified this correctly, the SiteInstance should not have changed.
1231 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1232
[email protected]e9ba4472008-09-14 15:42:431233 // We assign the entry's unique ID to be that of the new one. Since this is
1234 // always the result of a user action, we want to dismiss infobars, etc. like
1235 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421236 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511237 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431238
[email protected]a0e69262009-06-03 19:08:481239 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431240 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1241 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321242 if (existing_entry->update_virtual_url_with_url())
1243 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041244 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201245 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481246
[email protected]b77686522013-12-11 20:34:191247 // The page may have been requested with a different HTTP method.
clamy432acb22016-04-15 19:41:431248 FrameNavigationEntry* frame_entry =
1249 existing_entry->GetFrameEntry(rfh->frame_tree_node());
1250 frame_entry->set_method(params.method);
1251 frame_entry->set_post_id(params.post_id);
[email protected]b77686522013-12-11 20:34:191252
[email protected]cbab76d2008-10-13 22:42:471253 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431254}
1255
[email protected]d202a7c2012-01-04 07:53:471256void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321257 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521258 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
1259 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261260 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1261 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111262
[email protected]e9ba4472008-09-14 15:42:431263 // Manual subframe navigations just get the current entry cloned so the user
1264 // can go back or forward to it. The actual subframe information will be
1265 // stored in the page state for each of those entries. This happens out of
1266 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091267 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1268 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381269
dcheng9bfa5162016-04-09 01:00:571270 std::unique_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081271 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis22a7b4c2016-04-28 07:20:301272 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1273 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
1274 params.frame_unique_name, params.item_sequence_number,
naskoc7533512016-05-06 17:01:121275 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1276 params.url, params.referrer, params.method, params.post_id));
creis96fc55082015-06-13 06:42:381277 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
creis22a7b4c2016-04-28 07:20:301278 frame_entry.get());
creise062d542015-08-25 02:01:551279
creis22a7b4c2016-04-28 07:20:301280 // TODO(creis): Update this to add the frame_entry if we can't find the one
1281 // to replace, which can happen due to a unique name change. See
1282 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1283 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381284 } else {
1285 new_entry = GetLastCommittedEntry()->Clone();
1286 }
1287
[email protected]36fc0392011-12-25 03:59:511288 new_entry->SetPageID(params.page_id);
creis1857908a2016-02-25 20:31:521289 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431290}
1291
[email protected]d202a7c2012-01-04 07:53:471292bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321293 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221294 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291295 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1296 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1297
[email protected]e9ba4472008-09-14 15:42:431298 // We're guaranteed to have a previously committed entry, and we now need to
1299 // handle navigation inside of a subframe in it without creating a new entry.
1300 DCHECK(GetLastCommittedEntry());
1301
avi98405c22015-05-21 20:47:061302 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511303 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511304
creis3cdc3b02015-05-29 23:00:471305 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1306 // a history auto" navigation. Update the last committed index accordingly.
1307 // If we don't recognize the |nav_entry_id|, it might be either a pending
1308 // entry for a transfer or a recently pruned entry. We'll handle it below.
1309 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061310 // Make sure that a subframe commit isn't changing the main frame's
1311 // origin. Otherwise the renderer process may be confused, leading to a
1312 // URL spoof. We can't check the path since that may change
1313 // (https://crbug.com/373041).
1314 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1315 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511316 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1317 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061318 }
creis3cdc3b02015-05-29 23:00:471319
1320 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061321 last_committed_entry_index_ = entry_index;
1322 DiscardNonCommittedEntriesInternal();
1323 return true;
1324 }
[email protected]e9ba4472008-09-14 15:42:431325 }
[email protected]f233e4232013-02-23 00:55:141326
nickd30fd962015-07-27 21:51:081327 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121328 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1329 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121330 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081331 last_committed->AddOrUpdateFrameEntry(
creis22a7b4c2016-04-28 07:20:301332 rfh->frame_tree_node(), params.item_sequence_number,
naskoc7533512016-05-06 17:01:121333 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1334 params.url, params.referrer, params.page_state, params.method,
1335 params.post_id);
creis3cdc3b02015-05-29 23:00:471336
1337 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541338 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471339 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541340 // See https://crbug.com/495161.
1341 if (pending_entry_ &&
1342 pending_entry_->frame_tree_node_id() ==
1343 rfh->frame_tree_node()->frame_tree_node_id()) {
1344 DiscardPendingEntry(false);
1345 }
creis625a0c7d2015-03-24 23:17:121346 }
1347
[email protected]f233e4232013-02-23 00:55:141348 // We do not need to discard the pending entry in this case, since we will
1349 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431350 return false;
1351}
1352
[email protected]d202a7c2012-01-04 07:53:471353int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231354 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031355 for (size_t i = 0; i < entries_.size(); ++i) {
1356 if (entries_[i].get() == entry)
1357 return i;
1358 }
1359 return -1;
[email protected]765b35502008-08-21 00:51:201360}
1361
avidb7d1d22015-06-08 21:21:501362// There are two general cases where a navigation is "in page":
1363// 1. A fragment navigation, in which the url is kept the same except for the
1364// reference fragment.
1365// 2. A history API navigation (pushState and replaceState). This case is
1366// always in-page, but the urls are not guaranteed to match excluding the
1367// fragment. The relevant spec allows pushState/replaceState to any URL on
1368// the same origin.
1369// However, due to reloads, even identical urls are *not* guaranteed to be
1370// in-page navigations, we have to trust the renderer almost entirely.
1371// The one thing we do know is that cross-origin navigations will *never* be
1372// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1373// and assume the renderer is malicious if a cross-origin navigation claims to
1374// be in-page.
creisf164daa2016-06-07 00:17:051375//
1376// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1377// which are likely redundant with each other. Be careful about data URLs vs
1378// about:blank, both of which are unique origins and thus not considered equal.
[email protected]ce760d742012-08-30 22:31:101379bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121380 const GURL& url,
creisf164daa2016-06-07 00:17:051381 const url::Origin& origin,
[email protected]b9d4dfdc2013-08-08 00:25:121382 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231383 RenderFrameHost* rfh) const {
creis225a7432016-06-03 22:56:271384 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501385 GURL last_committed_url;
1386 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271387 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1388 // which might be empty in a new RenderFrameHost after a process swap.
1389 // Here, we care about the last committed URL in the FrameTreeNode,
1390 // regardless of which process it is in.
1391 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501392 } else {
1393 NavigationEntry* last_committed = GetLastCommittedEntry();
1394 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1395 // might Blink say that a navigation is in-page yet there be no last-
1396 // committed entry?
1397 if (!last_committed)
1398 return false;
1399 last_committed_url = last_committed->GetURL();
1400 }
1401
1402 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271403 const url::Origin& committed_origin =
1404 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501405 bool is_same_origin = last_committed_url.is_empty() ||
1406 // TODO(japhet): We should only permit navigations
1407 // originating from about:blank to be in-page if the
1408 // about:blank is the first document that frame loaded.
1409 // We don't have sufficient information to identify
1410 // that case at the moment, so always allow about:blank
1411 // for now.
1412 last_committed_url == GURL(url::kAboutBlankURL) ||
1413 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051414 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501415 !prefs.web_security_enabled ||
1416 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471417 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501418 if (!is_same_origin && renderer_says_in_page) {
1419 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1420 bad_message::NC_IN_PAGE_NAVIGATION);
1421 }
1422 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431423}
1424
[email protected]d202a7c2012-01-04 07:53:471425void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501426 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471427 const NavigationControllerImpl& source =
1428 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571429 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551430 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571431
[email protected]a26023822011-12-29 00:23:551432 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571433 return; // Nothing new to do.
1434
1435 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551436 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571437
[email protected]fdac6ade2013-07-20 01:06:301438 for (SessionStorageNamespaceMap::const_iterator it =
1439 source.session_storage_namespace_map_.begin();
1440 it != source.session_storage_namespace_map_.end();
1441 ++it) {
1442 SessionStorageNamespaceImpl* source_namespace =
1443 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1444 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1445 }
[email protected]4e6419c2010-01-15 04:50:341446
[email protected]2ca1ea662012-10-04 02:26:361447 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571448
1449 // Copy the max page id map from the old tab to the new tab. This ensures
1450 // that new and existing navigations in the tab's current SiteInstances
1451 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571452 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571453}
1454
[email protected]d202a7c2012-01-04 07:53:471455void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571456 NavigationController* temp,
1457 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161458 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011459 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161460
[email protected]d202a7c2012-01-04 07:53:471461 NavigationControllerImpl* source =
1462 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251463
avi2b177592014-12-10 02:08:021464 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011465 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251466
[email protected]474f8512013-05-31 22:31:161467 // We now have one entry, possibly with a new pending entry. Ensure that
1468 // adding the entries from source won't put us over the limit.
1469 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571470 if (!replace_entry)
1471 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251472
[email protected]47e020a2010-10-15 14:43:371473 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021474 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161475 // since it has not committed in source.
1476 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251477 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551478 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251479 else
1480 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571481
1482 // Ignore the source's current entry if merging with replacement.
1483 // TODO(davidben): This should preserve entries forward of the current
1484 // too. http://crbug.com/317872
1485 if (replace_entry && max_source_index > 0)
1486 max_source_index--;
1487
[email protected]47e020a2010-10-15 14:43:371488 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251489
1490 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551491 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141492
avi2b177592014-12-10 02:08:021493 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1494 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571495
avi2b177592014-12-10 02:08:021496 // Copy the max page id map from the old tab to the new tab. This ensures that
1497 // new and existing navigations in the tab's current SiteInstances are
1498 // identified properly.
creis3da03872015-02-20 21:12:321499 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avib7348942015-12-25 20:57:101500 int32_t site_max_page_id =
avi2b177592014-12-10 02:08:021501 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571502 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021503 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1504 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421505 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251506}
1507
[email protected]79368982013-11-13 01:11:011508bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161509 // If there is no last committed entry, we cannot prune. Even if there is a
1510 // pending entry, it may not commit, leaving this WebContents blank, despite
1511 // possibly giving it new entries via CopyStateFromAndPrune.
1512 if (last_committed_entry_index_ == -1)
1513 return false;
[email protected]9350602e2013-02-26 23:27:441514
[email protected]474f8512013-05-31 22:31:161515 // We cannot prune if there is a pending entry at an existing entry index.
1516 // It may not commit, so we have to keep the last committed entry, and thus
1517 // there is no sensible place to keep the pending entry. It is ok to have
1518 // a new pending entry, which can optionally commit as a new navigation.
1519 if (pending_entry_index_ != -1)
1520 return false;
1521
1522 // We should not prune if we are currently showing a transient entry.
1523 if (transient_entry_index_ != -1)
1524 return false;
1525
1526 return true;
1527}
1528
[email protected]79368982013-11-13 01:11:011529void NavigationControllerImpl::PruneAllButLastCommitted() {
1530 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161531
avi2b177592014-12-10 02:08:021532 DCHECK_EQ(0, last_committed_entry_index_);
1533 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441534
avi2b177592014-12-10 02:08:021535 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1536 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441537}
1538
[email protected]79368982013-11-13 01:11:011539void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161540 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011541 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261542
[email protected]474f8512013-05-31 22:31:161543 // Erase all entries but the last committed entry. There may still be a
1544 // new pending entry after this.
1545 entries_.erase(entries_.begin(),
1546 entries_.begin() + last_committed_entry_index_);
1547 entries_.erase(entries_.begin() + 1, entries_.end());
1548 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261549}
1550
[email protected]15f46dc2013-01-24 05:40:241551void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101552 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241553}
1554
[email protected]d1198fd2012-08-13 22:50:191555void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301556 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211557 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191558 if (!session_storage_namespace)
1559 return;
1560
1561 // We can't overwrite an existing SessionStorage without violating spec.
1562 // Attempts to do so may give a tab access to another tab's session storage
1563 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301564 bool successful_insert = session_storage_namespace_map_.insert(
1565 make_pair(partition_id,
1566 static_cast<SessionStorageNamespaceImpl*>(
1567 session_storage_namespace)))
1568 .second;
1569 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191570}
1571
avib7348942015-12-25 20:57:101572void NavigationControllerImpl::SetMaxRestoredPageID(int32_t max_id) {
[email protected]71fde352011-12-29 03:29:561573 max_restored_page_id_ = max_id;
1574}
1575
avib7348942015-12-25 20:57:101576int32_t NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561577 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551578}
1579
[email protected]aa62afd2014-04-22 19:22:461580bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461581 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101582 !GetLastCommittedEntry() &&
1583 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461584}
1585
[email protected]a26023822011-12-29 00:23:551586SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301587NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1588 std::string partition_id;
1589 if (instance) {
1590 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1591 // this if statement so |instance| must not be NULL.
1592 partition_id =
1593 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1594 browser_context_, instance->GetSiteURL());
1595 }
[email protected]d1198fd2012-08-13 22:50:191596
[email protected]fdac6ade2013-07-20 01:06:301597 // TODO(ajwong): Should this use the |partition_id| directly rather than
1598 // re-lookup via |instance|? http://crbug.com/142685
1599 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031600 BrowserContext::GetStoragePartition(browser_context_, instance);
1601 DOMStorageContextWrapper* context_wrapper =
1602 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1603
1604 SessionStorageNamespaceMap::const_iterator it =
1605 session_storage_namespace_map_.find(partition_id);
1606 if (it != session_storage_namespace_map_.end()) {
1607 // Ensure that this namespace actually belongs to this partition.
1608 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1609 IsFromContext(context_wrapper));
1610 return it->second.get();
1611 }
1612
1613 // Create one if no one has accessed session storage for this partition yet.
[email protected]fdac6ade2013-07-20 01:06:301614 SessionStorageNamespaceImpl* session_storage_namespace =
michaelnbacbcbd2016-02-09 00:32:031615 new SessionStorageNamespaceImpl(context_wrapper);
[email protected]fdac6ade2013-07-20 01:06:301616 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1617
1618 return session_storage_namespace;
1619}
1620
1621SessionStorageNamespace*
1622NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1623 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1624 return GetSessionStorageNamespace(NULL);
1625}
1626
1627const SessionStorageNamespaceMap&
1628NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1629 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551630}
[email protected]d202a7c2012-01-04 07:53:471631
1632bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561633 return needs_reload_;
1634}
[email protected]a26023822011-12-29 00:23:551635
[email protected]46bb5e9c2013-10-03 22:16:471636void NavigationControllerImpl::SetNeedsReload() {
1637 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541638
1639 if (last_committed_entry_index_ != -1) {
1640 entries_[last_committed_entry_index_]->SetTransitionType(
1641 ui::PAGE_TRANSITION_RELOAD);
1642 }
[email protected]46bb5e9c2013-10-03 22:16:471643}
1644
[email protected]d202a7c2012-01-04 07:53:471645void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551646 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121647 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311648
1649 DiscardNonCommittedEntries();
1650
1651 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121652 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311653 last_committed_entry_index_--;
1654}
1655
[email protected]d202a7c2012-01-04 07:53:471656void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471657 bool transient = transient_entry_index_ != -1;
1658 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291659
[email protected]cbab76d2008-10-13 22:42:471660 // If there was a transient entry, invalidate everything so the new active
1661 // entry state is shown.
1662 if (transient) {
[email protected]7f924832014-08-09 05:57:221663 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471664 }
initial.commit09911bf2008-07-26 23:55:291665}
1666
creis3da03872015-02-20 21:12:321667NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251668 return pending_entry_;
1669}
1670
[email protected]d202a7c2012-01-04 07:53:471671int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551672 return pending_entry_index_;
1673}
1674
avi25764702015-06-23 15:43:371675void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:571676 std::unique_ptr<NavigationEntryImpl> entry,
1677 bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351678 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201679
avi5cad4912015-06-19 05:25:441680 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1681 // need to keep continuity with the pending entry, so copy the pending entry's
1682 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1683 // then the renderer navigated on its own, independent of the pending entry,
1684 // so don't copy anything.
1685 if (pending_entry_ && pending_entry_index_ == -1)
1686 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201687
[email protected]cbab76d2008-10-13 22:42:471688 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201689
1690 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221691
1692 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181693 if (replace && current_size > 0) {
avib7348942015-12-25 20:57:101694 int32_t page_id = entry->GetPageID();
creisee17e932015-07-17 17:56:221695
dcheng36b6aec92015-12-26 06:16:361696 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221697
1698 // This is a new page ID, so we need everybody to know about it.
1699 delegate_->UpdateMaxPageID(page_id);
1700 return;
1701 }
[email protected]765b35502008-08-21 00:51:201702
creis37979a62015-08-04 19:48:181703 // We shouldn't see replace == true when there's no committed entries.
1704 DCHECK(!replace);
1705
[email protected]765b35502008-08-21 00:51:201706 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451707 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311708 // last_committed_entry_index_ must be updated here since calls to
1709 // NotifyPrunedEntries() below may re-enter and we must make sure
1710 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491711 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311712 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491713 num_pruned++;
[email protected]765b35502008-08-21 00:51:201714 entries_.pop_back();
1715 current_size--;
1716 }
[email protected]c12bf1a12008-09-17 16:28:491717 if (num_pruned > 0) // Only notify if we did prune something.
1718 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201719 }
1720
[email protected]944822b2012-03-02 20:57:251721 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201722
avib7348942015-12-25 20:57:101723 int32_t page_id = entry->GetPageID();
dcheng36b6aec92015-12-26 06:16:361724 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201725 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431726
1727 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371728 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291729}
1730
[email protected]944822b2012-03-02 20:57:251731void NavigationControllerImpl::PruneOldestEntryIfFull() {
1732 if (entries_.size() >= max_entry_count()) {
1733 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021734 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251735 RemoveEntryAtIndex(0);
1736 NotifyPrunedEntries(this, true, 1);
1737 }
1738}
1739
[email protected]d202a7c2012-01-04 07:53:471740void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011741 needs_reload_ = false;
1742
[email protected]83c2e232011-10-07 21:36:461743 // If we were navigating to a slow-to-commit page, and the user performs
1744 // a session history navigation to the last committed page, RenderViewHost
1745 // will force the throbber to start, but WebKit will essentially ignore the
1746 // navigation, and won't send a message to stop the throbber. To prevent this
1747 // from happening, we drop the navigation here and stop the slow-to-commit
1748 // page from loading (which would normally happen during the navigation).
1749 if (pending_entry_index_ != -1 &&
1750 pending_entry_index_ == last_committed_entry_index_ &&
1751 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231752 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511753 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351754 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571755 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121756
1757 // If an interstitial page is showing, we want to close it to get back
1758 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571759 if (delegate_->GetInterstitialPage())
1760 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121761
[email protected]83c2e232011-10-07 21:36:461762 DiscardNonCommittedEntries();
1763 return;
1764 }
1765
[email protected]6a13a6c2011-12-20 21:47:121766 // If an interstitial page is showing, the previous renderer is blocked and
1767 // cannot make new requests. Unblock (and disable) it to allow this
1768 // navigation to succeed. The interstitial will stay visible until the
1769 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571770 if (delegate_->GetInterstitialPage()) {
1771 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131772 CancelForNavigation();
1773 }
[email protected]6a13a6c2011-12-20 21:47:121774
initial.commit09911bf2008-07-26 23:55:291775 // For session history navigations only the pending_entry_index_ is set.
1776 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341777 CHECK_NE(pending_entry_index_, -1);
avif16f85a72015-11-13 18:25:031778 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291779 }
1780
creiscf40d9c2015-09-11 18:20:541781 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1782 // renderer process is not live, unless it is the initial navigation of the
1783 // tab.
1784 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1785 // TODO(creis): Find the RVH for the correct frame.
1786 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1787 !IsInitialNavigation()) {
1788 DiscardNonCommittedEntries();
1789 return;
1790 }
1791 }
1792
[email protected]40fd3032014-02-28 22:16:281793 // This call does not support re-entrancy. See http://crbug.com/347742.
1794 CHECK(!in_navigate_to_pending_entry_);
1795 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301796 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281797 in_navigate_to_pending_entry_ = false;
1798
1799 if (!success)
[email protected]cbab76d2008-10-13 22:42:471800 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291801}
1802
creis4e2ecb72015-06-20 00:46:301803bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1804 ReloadType reload_type) {
1805 DCHECK(pending_entry_);
1806 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1807
1808 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1809 // navigate the main frame or use the main frame's FrameNavigationEntry to
1810 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081811 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301812 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1813 FrameTreeNode* frame = root;
1814 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1815 if (ftn_id != -1) {
1816 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1817 DCHECK(frame);
1818 }
1819 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1820 reload_type, false);
1821 }
1822
1823 // In --site-per-process, we compare FrameNavigationEntries to see which
1824 // frames in the tree need to be navigated.
1825 FrameLoadVector same_document_loads;
1826 FrameLoadVector different_document_loads;
1827 if (GetLastCommittedEntry()) {
1828 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1829 }
1830
1831 if (same_document_loads.empty() && different_document_loads.empty()) {
1832 // If we don't have any frames to navigate at this point, either
1833 // (1) there is no previous history entry to compare against, or
1834 // (2) we were unable to match any frames by name. In the first case,
1835 // doing a different document navigation to the root item is the only valid
1836 // thing to do. In the second case, we should have been able to find a
1837 // frame to navigate based on names if this were a same document
1838 // navigation, so we can safely assume this is the different document case.
1839 different_document_loads.push_back(
1840 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1841 }
1842
1843 // If all the frame loads fail, we will discard the pending entry.
1844 bool success = false;
1845
1846 // Send all the same document frame loads before the different document loads.
1847 for (const auto& item : same_document_loads) {
1848 FrameTreeNode* frame = item.first;
1849 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1850 reload_type, true);
1851 }
1852 for (const auto& item : different_document_loads) {
1853 FrameTreeNode* frame = item.first;
1854 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1855 reload_type, false);
1856 }
1857 return success;
1858}
1859
1860void NavigationControllerImpl::FindFramesToNavigate(
1861 FrameTreeNode* frame,
1862 FrameLoadVector* same_document_loads,
1863 FrameLoadVector* different_document_loads) {
1864 DCHECK(pending_entry_);
1865 DCHECK_GE(last_committed_entry_index_, 0);
1866 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:271867 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
1868 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:301869 FrameNavigationEntry* old_item =
1870 GetLastCommittedEntry()->GetFrameEntry(frame);
1871 if (!new_item)
1872 return;
1873
1874 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:561875 // sequence number in the same SiteInstance. Newly restored items may not have
1876 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:301877 if (!old_item ||
1878 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:561879 (new_item->site_instance() != nullptr &&
1880 new_item->site_instance() != old_item->site_instance())) {
creis4e2ecb72015-06-20 00:46:301881 if (old_item &&
creis4e2ecb72015-06-20 00:46:301882 new_item->document_sequence_number() ==
1883 old_item->document_sequence_number()) {
1884 same_document_loads->push_back(std::make_pair(frame, new_item));
avib48cb312016-05-05 21:35:001885
1886 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
1887 // should continue on and navigate all child frames which have also
1888 // changed. This bug is the cause of <https://crbug.com/542299>, which is
1889 // a NC_IN_PAGE_NAVIGATION renderer kill.
1890 //
1891 // However, this bug is a bandaid over a deeper and worse problem. Doing a
1892 // pushState immediately after loading a subframe is a race, one that no
1893 // web page author expects. If we fix this bug, many large websites break.
1894 // For example, see <https://crbug.com/598043> and the spec discussion at
1895 // <https://github.com/whatwg/html/issues/1191>.
1896 //
1897 // For now, we accept this bug, and hope to resolve the race in a
1898 // different way that will one day allow us to fix this.
1899 return;
creis4e2ecb72015-06-20 00:46:301900 } else {
1901 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:581902 // For a different document, the subframes will be destroyed, so there's
1903 // no need to consider them.
1904 return;
creis4e2ecb72015-06-20 00:46:301905 }
creis4e2ecb72015-06-20 00:46:301906 }
1907
1908 for (size_t i = 0; i < frame->child_count(); i++) {
1909 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1910 different_document_loads);
1911 }
1912}
1913
[email protected]d202a7c2012-01-04 07:53:471914void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211915 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271916 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401917
[email protected]2db9bd72012-04-13 20:20:561918 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401919 // location bar will have up-to-date information about the security style
1920 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131921 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401922
[email protected]7f924832014-08-09 05:57:221923 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571924 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461925
[email protected]b0f724c2013-09-05 04:21:131926 // TODO(avi): Remove. http://crbug.com/170921
1927 NotificationDetails notification_details =
1928 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211929 NotificationService::current()->Notify(
1930 NOTIFICATION_NAV_ENTRY_COMMITTED,
1931 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401932 notification_details);
initial.commit09911bf2008-07-26 23:55:291933}
1934
initial.commit09911bf2008-07-26 23:55:291935// static
[email protected]d202a7c2012-01-04 07:53:471936size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231937 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1938 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211939 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231940}
1941
[email protected]d202a7c2012-01-04 07:53:471942void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221943 if (is_active && needs_reload_)
1944 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291945}
1946
[email protected]d202a7c2012-01-04 07:53:471947void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291948 if (!needs_reload_)
1949 return;
1950
initial.commit09911bf2008-07-26 23:55:291951 // Calling Reload() results in ignoring state, and not loading.
1952 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1953 // cached state.
avicc872d7242015-08-19 21:26:341954 if (pending_entry_) {
1955 NavigateToPendingEntry(NO_RELOAD);
1956 } else if (last_committed_entry_index_ != -1) {
1957 pending_entry_index_ = last_committed_entry_index_;
1958 NavigateToPendingEntry(NO_RELOAD);
1959 } else {
1960 // If there is something to reload, the successful reload will clear the
1961 // |needs_reload_| flag. Otherwise, just do it here.
1962 needs_reload_ = false;
1963 }
initial.commit09911bf2008-07-26 23:55:291964}
1965
avi47179332015-05-20 21:01:111966void NavigationControllerImpl::NotifyEntryChanged(
1967 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:211968 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091969 det.changed_entry = entry;
avi47179332015-05-20 21:01:111970 det.index = GetIndexOfEntry(
1971 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:211972 NotificationService::current()->Notify(
1973 NOTIFICATION_NAV_ENTRY_CHANGED,
1974 Source<NavigationController>(this),
1975 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291976}
1977
[email protected]d202a7c2012-01-04 07:53:471978void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361979 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551980 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361981 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291982
avib7348942015-12-25 20:57:101983 SetMaxRestoredPageID(static_cast<int32_t>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291984
1985 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291986}
[email protected]765b35502008-08-21 00:51:201987
[email protected]d202a7c2012-01-04 07:53:471988void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:451989 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:481990 DiscardTransientEntry();
1991}
1992
avi45a72532015-04-07 21:01:451993void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:281994 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401995 // progress, since this will cause a use-after-free. (We only allow this
1996 // when the tab is being destroyed for shutdown, since it won't return to
1997 // NavigateToEntry in that case.) http://crbug.com/347742.
1998 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281999
avi45a72532015-04-07 21:01:452000 if (was_failure && pending_entry_) {
2001 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
avi45a72532015-04-07 21:01:452002 } else {
2003 failed_pending_entry_id_ = 0;
2004 }
2005
[email protected]765b35502008-08-21 00:51:202006 if (pending_entry_index_ == -1)
2007 delete pending_entry_;
2008 pending_entry_ = NULL;
2009 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:472010}
2011
[email protected]d202a7c2012-01-04 07:53:472012void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:472013 if (transient_entry_index_ == -1)
2014 return;
[email protected]a0e69262009-06-03 19:08:482015 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:182016 if (last_committed_entry_index_ > transient_entry_index_)
2017 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:472018 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:202019}
2020
avib7348942015-12-25 20:57:102021int NavigationControllerImpl::GetEntryIndexWithPageID(SiteInstance* instance,
2022 int32_t page_id) const {
[email protected]765b35502008-08-21 00:51:202023 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:112024 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:512025 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:202026 return i;
2027 }
2028 return -1;
2029}
[email protected]cbab76d2008-10-13 22:42:472030
avi7c6f35e2015-05-08 17:52:382031int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2032 int nav_entry_id) const {
2033 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2034 if (entries_[i]->GetUniqueID() == nav_entry_id)
2035 return i;
2036 }
2037 return -1;
2038}
2039
creis3da03872015-02-20 21:12:322040NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472041 if (transient_entry_index_ == -1)
2042 return NULL;
avif16f85a72015-11-13 18:25:032043 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472044}
[email protected]e1cd5452010-08-26 18:03:252045
avi25764702015-06-23 15:43:372046void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:572047 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212048 // Discard any current transient entry, we can only have one at a time.
2049 int index = 0;
2050 if (last_committed_entry_index_ != -1)
2051 index = last_committed_entry_index_ + 1;
2052 DiscardTransientEntry();
avi25764702015-06-23 15:43:372053 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362054 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
[email protected]0b684262013-02-20 02:18:212055 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222056 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212057}
2058
[email protected]d202a7c2012-01-04 07:53:472059void NavigationControllerImpl::InsertEntriesFrom(
2060 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252061 int max_index) {
[email protected]a26023822011-12-29 00:23:552062 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252063 size_t insert_index = 0;
2064 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352065 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372066 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352067 // TODO(creis): Once we start sharing FrameNavigationEntries between
2068 // NavigationEntries, it will not be safe to share them with another tab.
2069 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252070 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362071 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252072 }
2073 }
2074}
[email protected]c5b88d82012-10-06 17:03:332075
2076void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2077 const base::Callback<base::Time()>& get_timestamp_callback) {
2078 get_timestamp_callback_ = get_timestamp_callback;
2079}
[email protected]8ff00d72012-10-23 19:12:212080
2081} // namespace content