blob: ff1c38d6d1fdecdab98758134b538a26131b9349 [file] [log] [blame]
[email protected]d4a8ca482013-10-30 21:06:401// Copyright 2013 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
creis4e2ecb72015-06-20 00:46:305/*
6 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
7 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
9 * (http://www.torchmobile.com/)
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
21 * its contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
25 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
[email protected]d4a8ca482013-10-30 21:06:4036#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:2937
dcheng36b6aec92015-12-26 06:16:3638#include <utility>
39
[email protected]c5b88d82012-10-06 17:03:3340#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2841#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2942#include "base/logging.h"
dcheng9bfa5162016-04-09 01:00:5743#include "base/memory/ptr_util.h"
asvitkine30330812016-08-30 04:01:0844#include "base/metrics/histogram_macros.h"
[email protected]348fbaac2013-06-11 06:31:5145#include "base/strings/string_number_conversions.h" // Temporary
46#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0047#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3748#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4249#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5950#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2851#include "cc/base/switches.h"
jamescookda2505812015-03-20 18:01:1852#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3153#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4154#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0455#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4056#include "content/browser/frame_host/debug_urls.h"
57#include "content/browser/frame_host/interstitial_page_impl.h"
58#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2659#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
csharrison9a9142bc42016-03-01 17:24:0460#include "content/browser/frame_host/navigation_handle_impl.h"
creis4e2ecb72015-06-20 00:46:3061#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3262#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3363#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2264#include "content/common/frame_messages.h"
[email protected]0aed2f52011-03-23 18:06:3665#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1166#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1967#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4668#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0069#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3870#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1671#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5872#include "content/public/browser/render_widget_host.h"
73#include "content/public/browser/render_widget_host_view.h"
Mikel Astizba9cf2fd2017-12-17 10:38:1074#include "content/public/browser/replaced_navigation_entry_data.h"
[email protected]4c3a23582012-08-18 08:54:3475#include "content/public/browser/storage_partition.h"
[email protected]d1198fd2012-08-13 22:50:1976#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3877#include "content/public/common/content_constants.h"
toyoshim86e34ec2016-02-25 08:56:1078#include "content/public/common/content_features.h"
clamy7fced7b2017-11-16 19:52:4379#include "content/public/common/url_utils.h"
servolkf3955532015-05-16 00:01:5980#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3281#include "net/base/escape.h"
[email protected]9677a3c2012-12-22 04:18:5882#include "skia/ext/platform_canvas.h"
Kinuko Yasuda74702f92017-07-31 03:27:5383#include "third_party/WebKit/common/mime_util/mime_util.h"
[email protected]cca6f392014-05-28 21:32:2684#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2985
[email protected]8ff00d72012-10-23 19:12:2186namespace content {
[email protected]e9ba4472008-09-14 15:42:4387namespace {
88
89// Invoked when entries have been pruned, or removed. For example, if the
90// current entries are [google, digg, yahoo], with the current entry google,
91// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4792void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4993 bool from_front,
94 int count) {
[email protected]8ff00d72012-10-23 19:12:2195 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4996 details.from_front = from_front;
97 details.count = count;
Sam McNally5c087a32017-08-25 01:46:1498 nav_controller->delegate()->NotifyNavigationListPruned(details);
[email protected]e9ba4472008-09-14 15:42:4399}
100
101// Ensure the given NavigationEntry has a valid state, so that WebKit does not
102// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39103//
[email protected]e9ba4472008-09-14 15:42:43104// An empty state is treated as a new navigation by WebKit, which would mean
105// losing the navigation entries and generating a new navigation entry after
106// this one. We don't want that. To avoid this we create a valid state which
107// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04108void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
109 if (!entry->GetPageState().IsValid())
110 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43111}
112
113// Configure all the NavigationEntries in entries for restore. This resets
114// the transition type to reload and makes sure the content state isn't empty.
115void ConfigureEntriesForRestore(
dcheng9bfa5162016-04-09 01:00:57116 std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
toyoshim0df1d3a2016-09-09 09:52:48117 RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43118 for (size_t i = 0; i < entries->size(); ++i) {
119 // Use a transition type of reload so that we don't incorrectly increase
120 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35121 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
toyoshim0df1d3a2016-09-09 09:52:48122 (*entries)[i]->set_restore_type(type);
[email protected]e9ba4472008-09-14 15:42:43123 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03124 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43125 }
126}
127
[email protected]bf70edce2012-06-20 22:32:22128// Determines whether or not we should be carrying over a user agent override
129// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21130bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22131 return last_entry && last_entry->GetIsOverridingUserAgent();
132}
133
clamy0a656e42018-02-06 18:18:28134// Returns true this navigation should be treated as a reload. For e.g.
135// navigating to the last committed url via the address bar or clicking on a
136// link which results in a navigation to the last committed or pending
137// navigation, etc.
138// |url|, |virtual_url|, |base_url_for_data_url|, |transition_type| correspond
139// to the new navigation (i.e. the pending NavigationEntry).
140// |last_committed_entry| is the last navigation that committed.
141bool ShouldTreatNavigationAsReload(
142 const GURL& url,
143 const GURL& virtual_url,
144 const GURL& base_url_for_data_url,
145 ui::PageTransition transition_type,
146 bool is_main_frame,
147 bool is_post,
148 bool is_reload,
149 bool is_navigation_to_existing_entry,
150 bool has_interstitial,
151 const NavigationEntryImpl* last_committed_entry) {
152 // Don't convert when an interstitial is showing.
153 if (has_interstitial)
154 return false;
155
156 // Only convert main frame navigations to a new entry.
157 if (!is_main_frame || is_reload || is_navigation_to_existing_entry)
158 return false;
159
160 // Only convert to reload if at least one navigation committed.
161 if (!last_committed_entry)
ananta3bdd8ae2016-12-22 17:11:55162 return false;
163
arthursonzogni7a8243682017-12-14 16:41:42164 // Skip navigations initiated by external applications.
clamy0a656e42018-02-06 18:18:28165 if (transition_type & ui::PAGE_TRANSITION_FROM_API)
arthursonzogni7a8243682017-12-14 16:41:42166 return false;
167
ananta3bdd8ae2016-12-22 17:11:55168 // We treat (PAGE_TRANSITION_RELOAD | PAGE_TRANSITION_FROM_ADDRESS_BAR),
169 // PAGE_TRANSITION_TYPED or PAGE_TRANSITION_LINK transitions as navigations
170 // which should be treated as reloads.
clamy0a656e42018-02-06 18:18:28171 bool transition_type_can_be_converted = false;
172 if (ui::PageTransitionCoreTypeIs(transition_type,
173 ui::PAGE_TRANSITION_RELOAD) &&
174 (transition_type & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
175 transition_type_can_be_converted = true;
ananta3bdd8ae2016-12-22 17:11:55176 }
clamy0a656e42018-02-06 18:18:28177 if (ui::PageTransitionCoreTypeIs(transition_type,
ananta3bdd8ae2016-12-22 17:11:55178 ui::PAGE_TRANSITION_TYPED)) {
clamy0a656e42018-02-06 18:18:28179 transition_type_can_be_converted = true;
180 }
181 if (ui::PageTransitionCoreTypeIs(transition_type, ui::PAGE_TRANSITION_LINK))
182 transition_type_can_be_converted = true;
183 if (!transition_type_can_be_converted)
184 return false;
185
186 // This check is required for cases like view-source:, etc. Here the URL of
187 // the navigation entry would contain the url of the page, while the virtual
188 // URL contains the full URL including the view-source prefix.
189 if (virtual_url != last_committed_entry->GetVirtualURL())
190 return false;
191
192 // Check that the URL match.
193 if (url != last_committed_entry->GetURL())
194 return false;
195
196 // This check is required for Android WebView loadDataWithBaseURL. Apps
197 // can pass in anything in the base URL and we need to ensure that these
198 // match before classifying it as a reload.
199 if (url.SchemeIs(url::kDataScheme) && base_url_for_data_url.is_valid()) {
200 if (base_url_for_data_url != last_committed_entry->GetBaseURLForDataURL())
201 return false;
ananta3bdd8ae2016-12-22 17:11:55202 }
203
clamy0a656e42018-02-06 18:18:28204 // Skip entries with SSL errors.
205 if (last_committed_entry->ssl_error())
206 return false;
207
208 // Don't convert to a reload when the last navigation was a POST or the new
209 // navigation is a POST.
210 if (last_committed_entry->GetHasPostData() || is_post)
211 return false;
212
213 return true;
ananta3bdd8ae2016-12-22 17:11:55214}
215
Mikel Astizba9cf2fd2017-12-17 10:38:10216// See replaced_navigation_entry_data.h for details: this information is meant
217// to ensure |*output_entry| keeps track of its original URL (landing page in
218// case of server redirects) as it gets replaced (e.g. history.replaceState()),
219// without overwriting it later, for main frames.
220void CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
221 const NavigationEntryImpl& replaced_entry,
222 NavigationEntryImpl* output_entry) {
223 if (output_entry->GetReplacedEntryData().has_value())
224 return;
225
226 ReplacedNavigationEntryData data;
227 data.first_committed_url = replaced_entry.GetURL();
228 data.first_timestamp = replaced_entry.GetTimestamp();
229 data.first_transition_type = replaced_entry.GetTransitionType();
230 output_entry->SetReplacedEntryData(data);
231}
232
[email protected]e9ba4472008-09-14 15:42:43233} // namespace
234
[email protected]d202a7c2012-01-04 07:53:47235// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29236
[email protected]23a918b2014-07-15 09:51:36237const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23238
[email protected]765b35502008-08-21 00:51:20239// static
[email protected]d202a7c2012-01-04 07:53:47240size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23241 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20242
[email protected]e6fec472013-05-14 05:29:02243// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20244// when testing.
245static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29246
[email protected]71fde352011-12-29 03:29:56247// static
dcheng9bfa5162016-04-09 01:00:57248std::unique_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
249 const GURL& url,
250 const Referrer& referrer,
251 ui::PageTransition transition,
252 bool is_renderer_initiated,
253 const std::string& extra_headers,
254 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05255 // Fix up the given URL before letting it be rewritten, so that any minor
256 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
257 GURL dest_url(url);
258 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
259 browser_context);
260
[email protected]71fde352011-12-29 03:29:56261 // Allow the browser URL handler to rewrite the URL. This will, for example,
262 // remove "view-source:" from the beginning of the URL to get the URL that
263 // will actually be loaded. This real URL won't be shown to the user, just
264 // used internally.
creis94a977f62015-02-18 23:51:05265 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56266 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31267 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56268 &loaded_url, browser_context, &reverse_on_redirect);
269
270 NavigationEntryImpl* entry = new NavigationEntryImpl(
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28271 nullptr, // The site instance for tabs is sent on navigation
272 // (WebContents::GetSiteInstance).
273 loaded_url, referrer, base::string16(), transition,
[email protected]71fde352011-12-29 03:29:56274 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05275 entry->SetVirtualURL(dest_url);
276 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56277 entry->set_update_virtual_url_with_url(reverse_on_redirect);
278 entry->set_extra_headers(extra_headers);
dcheng9bfa5162016-04-09 01:00:57279 return base::WrapUnique(entry);
[email protected]71fde352011-12-29 03:29:56280}
281
[email protected]cdcb1dee2012-01-04 00:46:20282// static
283void NavigationController::DisablePromptOnRepost() {
284 g_check_for_repost = false;
285}
286
[email protected]c5b88d82012-10-06 17:03:33287base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
288 base::Time t) {
289 // If |t| is between the water marks, we're in a run of duplicates
290 // or just getting out of it, so increase the high-water mark to get
291 // a time that probably hasn't been used before and return it.
292 if (low_water_mark_ <= t && t <= high_water_mark_) {
293 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
294 return high_water_mark_;
295 }
296
297 // Otherwise, we're clear of the last duplicate run, so reset the
298 // water marks.
299 low_water_mark_ = high_water_mark_ = t;
300 return t;
301}
302
[email protected]d202a7c2012-01-04 07:53:47303NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57304 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19305 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37306 : browser_context_(browser_context),
ananta3bdd8ae2016-12-22 17:11:55307 pending_entry_(nullptr),
avi45a72532015-04-07 21:01:45308 failed_pending_entry_id_(0),
[email protected]765b35502008-08-21 00:51:20309 last_committed_entry_index_(-1),
310 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47311 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57312 delegate_(delegate),
[email protected]69e797f2013-04-30 01:10:22313 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57314 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09315 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28316 in_navigate_to_pending_entry_(false),
toyoshim0df1d3a2016-09-09 09:52:48317 pending_reload_(ReloadType::NONE),
[email protected]8cea7892013-02-06 06:49:31318 get_timestamp_callback_(base::Bind(&base::Time::Now)),
toyoshima63c2a62016-09-29 09:03:26319 screenshot_manager_(new NavigationEntryScreenshotManager(this)),
320 last_committed_reload_type_(ReloadType::NONE) {
[email protected]3d7474ff2011-07-27 17:47:37321 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29322}
323
[email protected]d202a7c2012-01-04 07:53:47324NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47325 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29326}
327
[email protected]d202a7c2012-01-04 07:53:47328WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57329 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32330}
331
[email protected]d202a7c2012-01-04 07:53:47332BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55333 return browser_context_;
334}
335
[email protected]d202a7c2012-01-04 07:53:47336void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30337 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36338 RestoreType type,
dcheng9bfa5162016-04-09 01:00:57339 std::vector<std::unique_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57340 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55341 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57342 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14343 selected_navigation < static_cast<int>(entries->size()));
arthursonzogni5c4c202d2017-04-25 23:41:27344 DCHECK_EQ(-1, pending_entry_index_);
[email protected]ce3fa3c2009-04-20 19:55:57345
[email protected]ce3fa3c2009-04-20 19:55:57346 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03347 entries_.reserve(entries->size());
348 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36349 entries_.push_back(
350 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03351
352 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
353 // cleared out safely.
354 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57355
356 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36357 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57358}
359
toyoshim6142d96f2016-12-19 09:07:25360void NavigationControllerImpl::Reload(ReloadType reload_type,
361 bool check_for_repost) {
liaoyuke9168fba2017-03-10 19:20:28362 DCHECK_NE(ReloadType::NONE, reload_type);
363
[email protected]669e0ba2012-08-30 23:57:36364 if (transient_entry_index_ != -1) {
365 // If an interstitial is showing, treat a reload as a navigation to the
366 // transient entry's URL.
creis3da03872015-02-20 21:12:32367 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27368 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36369 return;
[email protected]6286a3792013-10-09 04:03:27370 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21371 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35372 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27373 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47374 return;
[email protected]669e0ba2012-08-30 23:57:36375 }
[email protected]cbab76d2008-10-13 22:42:47376
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28377 NavigationEntryImpl* entry = nullptr;
[email protected]59167c22013-06-03 18:07:32378 int current_index = -1;
379
380 // If we are reloading the initial navigation, just use the current
381 // pending entry. Otherwise look up the current entry.
382 if (IsInitialNavigation() && pending_entry_) {
383 entry = pending_entry_;
384 // The pending entry might be in entries_ (e.g., after a Clone), so we
385 // should also update the current_index.
386 current_index = pending_entry_index_;
387 } else {
388 DiscardNonCommittedEntriesInternal();
389 current_index = GetCurrentEntryIndex();
390 if (current_index != -1) {
creis3da03872015-02-20 21:12:32391 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32392 }
[email protected]979a4bc2013-04-24 01:27:15393 }
[email protected]241db352013-04-22 18:04:05394
[email protected]59167c22013-06-03 18:07:32395 // If we are no where, then we can't reload. TODO(darin): We should add a
396 // CanReload method.
397 if (!entry)
398 return;
399
toyoshima63c2a62016-09-29 09:03:26400 // Check if previous navigation was a reload to track consecutive reload
401 // operations.
402 if (last_committed_reload_type_ != ReloadType::NONE) {
403 DCHECK(!last_committed_reload_time_.is_null());
404 base::Time now =
405 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
406 DCHECK_GT(now, last_committed_reload_time_);
407 if (!last_committed_reload_time_.is_null() &&
408 now > last_committed_reload_time_) {
409 base::TimeDelta delta = now - last_committed_reload_time_;
410 UMA_HISTOGRAM_MEDIUM_TIMES("Navigation.Reload.ReloadToReloadDuration",
411 delta);
toyoshimb0d4eed32016-12-09 06:03:04412 if (last_committed_reload_type_ == ReloadType::NORMAL) {
toyoshima63c2a62016-09-29 09:03:26413 UMA_HISTOGRAM_MEDIUM_TIMES(
414 "Navigation.Reload.ReloadMainResourceToReloadDuration", delta);
415 }
416 }
417 }
418
419 // Set ReloadType for |entry| in order to check it at commit time.
420 entry->set_reload_type(reload_type);
421
[email protected]cdcb1dee2012-01-04 00:46:20422 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32423 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30424 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07425 // they really want to do this. If they do, the dialog will call us back
426 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57427 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02428
[email protected]106a0812010-03-18 00:15:12429 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57430 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29431 } else {
[email protected]59167c22013-06-03 18:07:32432 if (!IsInitialNavigation())
433 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26434
[email protected]bcd904482012-02-01 01:54:22435 // If we are reloading an entry that no longer belongs to the current
avif9a94c7e2016-10-14 15:54:11436 // SiteInstance (for example, refreshing a page for just installed app), the
437 // reload must happen in a new process. The new entry behaves as new
438 // navigation (which happens to clear forward history). Tabs that are
439 // discarded due to low memory conditions may not have a SiteInstance, and
440 // should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32441 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21442 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10443 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
444 site_instance->GetProcess()->IsForGuestsOnly();
445 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30446 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22447 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46448 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22449 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
450 CreateNavigationEntry(
451 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37452 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26453
[email protected]11535962012-02-09 21:02:10454 // Mark the reload type as NO_RELOAD, so navigation will not be considered
455 // a reload in the renderer.
toyoshim0df1d3a2016-09-09 09:52:48456 reload_type = ReloadType::NONE;
[email protected]11535962012-02-09 21:02:10457
[email protected]e2caa032012-11-15 23:29:18458 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22459 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46460 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22461 } else {
[email protected]59167c22013-06-03 18:07:32462 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22463 pending_entry_index_ = current_index;
464
Sylvain Defresnec6ccc77d2014-09-19 10:19:35465 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22466 }
467
[email protected]1ccb3568d2010-02-19 10:51:16468 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29469 }
470}
471
[email protected]d202a7c2012-01-04 07:53:47472void NavigationControllerImpl::CancelPendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48473 DCHECK(pending_reload_ != ReloadType::NONE);
474 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12475}
476
[email protected]d202a7c2012-01-04 07:53:47477void NavigationControllerImpl::ContinuePendingReload() {
toyoshim0df1d3a2016-09-09 09:52:48478 if (pending_reload_ == ReloadType::NONE) {
[email protected]106a0812010-03-18 00:15:12479 NOTREACHED();
480 } else {
toyoshim6142d96f2016-12-19 09:07:25481 Reload(pending_reload_, false);
toyoshim0df1d3a2016-09-09 09:52:48482 pending_reload_ = ReloadType::NONE;
[email protected]106a0812010-03-18 00:15:12483 }
484}
485
[email protected]cd2e15742013-03-08 04:08:31486bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09487 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11488}
489
creis10a4ab72015-10-13 17:22:40490bool NavigationControllerImpl::IsInitialBlankNavigation() const {
491 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
toyoshim0df1d3a2016-09-09 09:52:48492 // we'll need to check for entry count 1 and restore_type NONE (to exclude
493 // the cloned tab case).
creis10a4ab72015-10-13 17:22:40494 return IsInitialNavigation() && GetEntryCount() == 0;
495}
496
avi254eff02015-07-01 08:27:58497NavigationEntryImpl*
498NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
499 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03500 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58501}
502
avi25764702015-06-23 15:43:37503void NavigationControllerImpl::LoadEntry(
dcheng9bfa5162016-04-09 01:00:57504 std::unique_ptr<NavigationEntryImpl> entry) {
clamy0a656e42018-02-06 18:18:28505 DiscardPendingEntry(false);
arthursonzogni5c4c202d2017-04-25 23:41:27506
[email protected]765b35502008-08-21 00:51:20507 // When navigating to a new page, we don't know for sure if we will actually
508 // end up leaving the current page. The new page load could for example
509 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36510 SetPendingEntry(std::move(entry));
toyoshim0df1d3a2016-09-09 09:52:48511 NavigateToPendingEntry(ReloadType::NONE);
[email protected]59167c22013-06-03 18:07:32512}
513
avi25764702015-06-23 15:43:37514void NavigationControllerImpl::SetPendingEntry(
dcheng9bfa5162016-04-09 01:00:57515 std::unique_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47516 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37517 pending_entry_ = entry.release();
arthursonzogni5c4c202d2017-04-25 23:41:27518 DCHECK_EQ(-1, pending_entry_index_);
[email protected]8ff00d72012-10-23 19:12:21519 NotificationService::current()->Notify(
520 NOTIFICATION_NAV_ENTRY_PENDING,
521 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37522 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20523}
524
creis3da03872015-02-20 21:12:32525NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47526 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03527 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47528 if (pending_entry_)
529 return pending_entry_;
530 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20531}
532
creis3da03872015-02-20 21:12:32533NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19534 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03535 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32536 // The pending entry is safe to return for new (non-history), browser-
537 // initiated navigations. Most renderer-initiated navigations should not
538 // show the pending entry, to prevent URL spoof attacks.
539 //
540 // We make an exception for renderer-initiated navigations in new tabs, as
541 // long as no other page has tried to access the initial empty document in
542 // the new tab. If another page modifies this blank page, a URL spoof is
543 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32544 bool safe_to_show_pending =
545 pending_entry_ &&
546 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09547 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32548 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46549 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32550
551 // Also allow showing the pending entry for history navigations in a new tab,
552 // such as Ctrl+Back. In this case, no existing page is visible and no one
553 // can script the new tab before it commits.
554 if (!safe_to_show_pending &&
555 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09556 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32557 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34558 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32559 safe_to_show_pending = true;
560
561 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19562 return pending_entry_;
563 return GetLastCommittedEntry();
564}
565
[email protected]d202a7c2012-01-04 07:53:47566int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47567 if (transient_entry_index_ != -1)
568 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20569 if (pending_entry_index_ != -1)
570 return pending_entry_index_;
571 return last_committed_entry_index_;
572}
573
creis3da03872015-02-20 21:12:32574NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20575 if (last_committed_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:28576 return nullptr;
avif16f85a72015-11-13 18:25:03577 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20578}
579
[email protected]d202a7c2012-01-04 07:53:47580bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57581 const std::string& mime_type = delegate_->GetContentsMimeType();
Kinuko Yasuda74702f92017-07-31 03:27:53582 bool is_viewable_mime_type = blink::IsSupportedNonImageMimeType(mime_type) &&
583 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27584 NavigationEntry* visible_entry = GetVisibleEntry();
585 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57586 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16587}
588
[email protected]d202a7c2012-01-04 07:53:47589int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:27590 // The last committed entry index must always be less than the number of
591 // entries. If there are no entries, it must be -1. However, there may be a
592 // transient entry while the last committed entry index is still -1.
593 DCHECK_LT(last_committed_entry_index_, GetEntryCount());
594 DCHECK(GetEntryCount() || last_committed_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:55595 return last_committed_entry_index_;
596}
597
[email protected]d202a7c2012-01-04 07:53:47598int NavigationControllerImpl::GetEntryCount() const {
arthursonzogni5c4c202d2017-04-25 23:41:27599 DCHECK_LE(entries_.size(), max_entry_count());
[email protected]a26023822011-12-29 00:23:55600 return static_cast<int>(entries_.size());
601}
602
creis3da03872015-02-20 21:12:32603NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25604 int index) const {
avi25764702015-06-23 15:43:37605 if (index < 0 || index >= GetEntryCount())
606 return nullptr;
607
avif16f85a72015-11-13 18:25:03608 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25609}
610
creis3da03872015-02-20 21:12:32611NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25612 int offset) const {
avi057ce1492015-06-29 15:59:47613 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20614}
615
[email protected]9ba14052012-06-22 23:50:03616int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46617 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03618}
619
[email protected]9677a3c2012-12-22 04:18:58620void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10621 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58622}
623
[email protected]1a3f5312013-04-26 21:00:10624void NavigationControllerImpl::SetScreenshotManager(
dcheng9bfa5162016-04-09 01:00:57625 std::unique_ptr<NavigationEntryScreenshotManager> manager) {
avi67081d0ae2015-07-27 18:25:46626 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36627 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46628 else
629 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58630}
631
[email protected]d202a7c2012-01-04 07:53:47632bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22633 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20634}
635
[email protected]d202a7c2012-01-04 07:53:47636bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22637 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20638}
639
[email protected]9ba14052012-06-22 23:50:03640bool NavigationControllerImpl::CanGoToOffset(int offset) const {
641 int index = GetIndexForOffset(offset);
642 return index >= 0 && index < GetEntryCount();
643}
644
[email protected]d202a7c2012-01-04 07:53:47645void NavigationControllerImpl::GoBack() {
toyoshim3af4d502016-03-30 12:38:12646 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
647 GoToIndex(GetIndexForOffset(-1));
[email protected]765b35502008-08-21 00:51:20648}
649
[email protected]d202a7c2012-01-04 07:53:47650void NavigationControllerImpl::GoForward() {
toyoshim3af4d502016-03-30 12:38:12651 // Call GoToIndex rather than GoToOffset to get the NOTREACHED() check.
652 GoToIndex(GetIndexForOffset(1));
[email protected]765b35502008-08-21 00:51:20653}
654
[email protected]d202a7c2012-01-04 07:53:47655void NavigationControllerImpl::GoToIndex(int index) {
sunjian30574a62017-03-21 21:39:44656 TRACE_EVENT0("browser,navigation,benchmark",
657 "NavigationControllerImpl::GoToIndex");
[email protected]765b35502008-08-21 00:51:20658 if (index < 0 || index >= static_cast<int>(entries_.size())) {
659 NOTREACHED();
660 return;
661 }
662
[email protected]cbab76d2008-10-13 22:42:47663 if (transient_entry_index_ != -1) {
664 if (index == transient_entry_index_) {
665 // Nothing to do when navigating to the transient.
666 return;
667 }
668 if (index > transient_entry_index_) {
669 // Removing the transient is goint to shift all entries by 1.
670 index--;
671 }
672 }
673
674 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20675
arthursonzogni5c4c202d2017-04-25 23:41:27676 DCHECK_EQ(nullptr, pending_entry_);
677 DCHECK_EQ(-1, pending_entry_index_);
678 pending_entry_ = entries_[index].get();
[email protected]765b35502008-08-21 00:51:20679 pending_entry_index_ = index;
arthursonzogni5c4c202d2017-04-25 23:41:27680 pending_entry_->SetTransitionType(ui::PageTransitionFromInt(
681 pending_entry_->GetTransitionType() | ui::PAGE_TRANSITION_FORWARD_BACK));
toyoshim0df1d3a2016-09-09 09:52:48682 NavigateToPendingEntry(ReloadType::NONE);
[email protected]765b35502008-08-21 00:51:20683}
684
[email protected]d202a7c2012-01-04 07:53:47685void NavigationControllerImpl::GoToOffset(int offset) {
toyoshim3af4d502016-03-30 12:38:12686 // Note: This is actually reached in unit tests.
[email protected]9ba14052012-06-22 23:50:03687 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20688 return;
689
[email protected]9ba14052012-06-22 23:50:03690 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20691}
692
[email protected]41374f12013-07-24 02:49:28693bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
694 if (index == last_committed_entry_index_ ||
695 index == pending_entry_index_)
696 return false;
[email protected]6a13a6c2011-12-20 21:47:12697
[email protected]43032342011-03-21 14:10:31698 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28699 return true;
[email protected]cbab76d2008-10-13 22:42:47700}
701
[email protected]d202a7c2012-01-04 07:53:47702void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23703 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32704 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31705 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51706 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
707 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32708 }
709}
710
[email protected]d202a7c2012-01-04 07:53:47711void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47712 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21713 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35714 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47715 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47716 LoadURLParams params(url);
717 params.referrer = referrer;
718 params.transition_type = transition;
719 params.extra_headers = extra_headers;
720 LoadURLWithParams(params);
721}
722
723void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43724 TRACE_EVENT1("browser,navigation",
725 "NavigationControllerImpl::LoadURLWithParams",
726 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43727 if (HandleDebugURL(params.url, params.transition_type)) {
728 // If Telemetry is running, allow the URL load to proceed as if it's
729 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49730 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43731 cc::switches::kEnableGpuBenchmarking))
732 return;
733 }
[email protected]8bf1048012012-02-08 01:22:18734
[email protected]cf002332012-08-14 19:17:47735 // Checks based on params.load_type.
736 switch (params.load_type) {
737 case LOAD_TYPE_DEFAULT:
lukasza477a5a22016-06-16 18:28:43738 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47739 break;
740 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26741 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47742 NOTREACHED() << "Data load must use data scheme.";
743 return;
744 }
745 break;
746 default:
747 NOTREACHED();
748 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:46749 }
[email protected]e47ae9472011-10-13 19:48:34750
[email protected]e47ae9472011-10-13 19:48:34751 // The user initiated a load, we don't need to reload anymore.
752 needs_reload_ = false;
753
[email protected]cf002332012-08-14 19:17:47754 bool override = false;
755 switch (params.override_user_agent) {
756 case UA_OVERRIDE_INHERIT:
757 override = ShouldKeepOverride(GetLastCommittedEntry());
758 break;
759 case UA_OVERRIDE_TRUE:
760 override = true;
761 break;
762 case UA_OVERRIDE_FALSE:
763 override = false;
764 break;
765 default:
766 NOTREACHED();
767 break;
[email protected]d1ef81d2012-07-24 11:39:36768 }
769
dcheng9bfa5162016-04-09 01:00:57770 std::unique_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30771
772 // For subframes, create a pending entry with a corresponding frame entry.
773 int frame_tree_node_id = params.frame_tree_node_id;
774 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
775 FrameTreeNode* node =
776 params.frame_tree_node_id != -1
777 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
778 : delegate_->GetFrameTree()->FindByName(params.frame_name);
779 if (node && !node->IsMainFrame()) {
780 DCHECK(GetLastCommittedEntry());
781
782 // Update the FTN ID to use below in case we found a named frame.
783 frame_tree_node_id = node->frame_tree_node_id();
784
creisce0ef3572017-01-26 17:53:08785 // Create an identical NavigationEntry with a new FrameNavigationEntry for
786 // the target subframe.
787 entry = GetLastCommittedEntry()->Clone();
788 entry->AddOrUpdateFrameEntry(
789 node, -1, -1, nullptr,
790 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()),
791 params.url, params.referrer, params.redirect_chain, PageState(),
792 "GET", -1);
creis4e2ecb72015-06-20 00:46:30793 }
creis6a93a812015-04-24 23:13:17794 }
creis4e2ecb72015-06-20 00:46:30795
796 // Otherwise, create a pending entry for the main frame.
797 if (!entry) {
[email protected]11fec362017-09-11 14:06:50798 // extra_headers in params are \n separated, navigation entries want \r\n.
799 std::string extra_headers_crlf;
800 base::ReplaceChars(params.extra_headers, "\n", "\r\n", &extra_headers_crlf);
creis4e2ecb72015-06-20 00:46:30801 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
802 params.url, params.referrer, params.transition_type,
[email protected]11fec362017-09-11 14:06:50803 params.is_renderer_initiated, extra_headers_crlf, browser_context_));
naskoc7533512016-05-06 17:01:12804 entry->set_source_site_instance(
805 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
arthursonzognie6b67c20b2016-10-04 09:46:04806 entry->SetRedirectChain(params.redirect_chain);
Jochen Eisingere64bca2c2018-01-12 09:17:03807 entry->set_suggested_filename(params.suggested_filename);
creis4e2ecb72015-06-20 00:46:30808 }
naskoc7533512016-05-06 17:01:12809
creis4e2ecb72015-06-20 00:46:30810 // Set the FTN ID (only used in non-site-per-process, for tests).
811 entry->set_frame_tree_node_id(frame_tree_node_id);
avib6cc1562015-02-12 19:56:39812 // Don't allow an entry replacement if there is no entry to replace.
813 // http://crbug.com/457149
814 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18815 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13816 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47817 entry->SetIsOverridingUserAgent(override);
818 entry->set_transferred_global_request_id(
819 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36820
Mounir Lamourif7246b92018-01-30 18:16:33821// Always propagate `has_user_gesture` on Android but only when the request
822// was originated by the renderer on other platforms. This is merely for
823// backward compatibility as browser process user gestures create confusion
824// in many tests.
825#if defined(OS_ANDROID)
826 entry->set_has_user_gesture(params.has_user_gesture);
827#else
828 if (params.is_renderer_initiated)
829 entry->set_has_user_gesture(params.has_user_gesture);
830#endif
831
clamy8451aa62015-01-23 16:56:08832#if defined(OS_ANDROID)
833 if (params.intent_received_timestamp > 0) {
834 entry->set_intent_received_timestamp(
835 base::TimeTicks() +
836 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
837 }
clamy8451aa62015-01-23 16:56:08838#endif
839
[email protected]cf002332012-08-14 19:17:47840 switch (params.load_type) {
841 case LOAD_TYPE_DEFAULT:
842 break;
lukasza477a5a22016-06-16 18:28:43843 case LOAD_TYPE_HTTP_POST:
[email protected]cf002332012-08-14 19:17:47844 entry->SetHasPostData(true);
lukasza477a5a22016-06-16 18:28:43845 entry->SetPostData(params.post_data);
[email protected]cf002332012-08-14 19:17:47846 break;
847 case LOAD_TYPE_DATA:
848 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
849 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03850#if defined(OS_ANDROID)
851 entry->SetDataURLAsString(params.data_url_as_string);
852#endif
[email protected]951a64832012-10-11 16:26:37853 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47854 break;
855 default:
856 NOTREACHED();
857 break;
Lukasz Anforowiczbb0cfd5e2017-12-14 22:39:46858 }
[email protected]132e281a2012-07-31 18:32:44859
djacobo825aa6a82016-09-29 22:47:19860 entry->set_started_from_context_menu(params.started_from_context_menu);
dcheng36b6aec92015-12-26 06:16:36861 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44862}
863
creisb4dc9332016-03-14 21:39:19864bool NavigationControllerImpl::PendingEntryMatchesHandle(
865 NavigationHandleImpl* handle) const {
866 return pending_entry_ &&
867 pending_entry_->GetUniqueID() == handle->pending_nav_entry_id();
868}
869
[email protected]d202a7c2012-01-04 07:53:47870bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32871 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22872 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
peary21b0f797b2016-09-28 17:28:33873 LoadCommittedDetails* details,
clamy3bf35e3c2016-11-10 15:59:44874 bool is_navigation_within_page,
875 NavigationHandleImpl* navigation_handle) {
[email protected]cd2e15742013-03-08 04:08:31876 is_initial_navigation_ = false;
877
[email protected]0e8db942008-09-24 21:21:48878 // Save the previous state before we clobber it.
aelias100c9192017-01-13 00:01:43879 bool overriding_user_agent_changed = false;
[email protected]0e8db942008-09-24 21:21:48880 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51881 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55882 details->previous_entry_index = GetLastCommittedEntryIndex();
aelias100c9192017-01-13 00:01:43883 if (pending_entry_ &&
884 pending_entry_->GetIsOverridingUserAgent() !=
885 GetLastCommittedEntry()->GetIsOverridingUserAgent())
886 overriding_user_agent_changed = true;
[email protected]0e8db942008-09-24 21:21:48887 } else {
888 details->previous_url = GURL();
889 details->previous_entry_index = -1;
890 }
[email protected]ecd9d8702008-08-28 22:10:17891
fdegans9caf66a2015-07-30 21:10:42892 // If there is a pending entry at this point, it should have a SiteInstance,
893 // except for restored entries.
jam48cea9082017-02-15 06:13:29894 bool was_restored = false;
toyoshim0df1d3a2016-09-09 09:52:48895 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
896 pending_entry_->restore_type() != RestoreType::NONE);
897 if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
898 pending_entry_->set_restore_type(RestoreType::NONE);
jam48cea9082017-02-15 06:13:29899 was_restored = true;
toyoshim0df1d3a2016-09-09 09:52:48900 }
[email protected]e9ba4472008-09-14 15:42:43901
creis865ad442016-03-15 16:43:09902 // The renderer tells us whether the navigation replaces the current entry.
903 details->did_replace_entry = params.should_replace_current_entry;
[email protected]bcd904482012-02-01 01:54:22904
[email protected]e9ba4472008-09-14 15:42:43905 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43906 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20907
eugenebutee08663a2017-04-27 17:43:12908 // is_same_document must be computed before the entry gets committed.
909 details->is_same_document = is_navigation_within_page;
[email protected]b9d4dfdc2013-08-08 00:25:12910
toyoshima63c2a62016-09-29 09:03:26911 // Save reload type and timestamp for a reload navigation to detect
912 // consecutive reloads when the next reload is requested.
clamy3bf35e3c2016-11-10 15:59:44913 if (PendingEntryMatchesHandle(navigation_handle)) {
toyoshima63c2a62016-09-29 09:03:26914 if (pending_entry_->reload_type() != ReloadType::NONE) {
915 last_committed_reload_type_ = pending_entry_->reload_type();
916 last_committed_reload_time_ =
917 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
918 } else if (!pending_entry_->is_renderer_initiated() ||
919 params.gesture == NavigationGestureUser) {
920 last_committed_reload_type_ = ReloadType::NONE;
921 last_committed_reload_time_ = base::Time();
922 }
923 }
924
[email protected]0e8db942008-09-24 21:21:48925 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21926 case NAVIGATION_TYPE_NEW_PAGE:
eugenebutee08663a2017-04-27 17:43:12927 RendererDidNavigateToNewPage(rfh, params, details->is_same_document,
clamy3bf35e3c2016-11-10 15:59:44928 details->did_replace_entry,
929 navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43930 break;
[email protected]8ff00d72012-10-23 19:12:21931 case NAVIGATION_TYPE_EXISTING_PAGE:
eugenebutee08663a2017-04-27 17:43:12932 RendererDidNavigateToExistingPage(rfh, params, details->is_same_document,
jam48cea9082017-02-15 06:13:29933 was_restored, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43934 break;
[email protected]8ff00d72012-10-23 19:12:21935 case NAVIGATION_TYPE_SAME_PAGE:
clamy3bf35e3c2016-11-10 15:59:44936 RendererDidNavigateToSamePage(rfh, params, navigation_handle);
[email protected]e9ba4472008-09-14 15:42:43937 break;
[email protected]8ff00d72012-10-23 19:12:21938 case NAVIGATION_TYPE_NEW_SUBFRAME:
eugenebutee08663a2017-04-27 17:43:12939 RendererDidNavigateNewSubframe(rfh, params, details->is_same_document,
creisf49dfc92016-07-26 17:05:18940 details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43941 break;
[email protected]8ff00d72012-10-23 19:12:21942 case NAVIGATION_TYPE_AUTO_SUBFRAME:
creis59d5a47cb2016-08-24 23:57:19943 if (!RendererDidNavigateAutoSubframe(rfh, params)) {
creisce0ef3572017-01-26 17:53:08944 // We don't send a notification about auto-subframe PageState during
945 // UpdateStateForFrame, since it looks like nothing has changed. Send
946 // it here at commit time instead.
947 NotifyEntryChanged(GetLastCommittedEntry());
[email protected]e9ba4472008-09-14 15:42:43948 return false;
creis59d5a47cb2016-08-24 23:57:19949 }
[email protected]e9ba4472008-09-14 15:42:43950 break;
[email protected]8ff00d72012-10-23 19:12:21951 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49952 // If a pending navigation was in progress, this canceled it. We should
953 // discard it and make sure it is removed from the URL bar. After that,
954 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43955 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49956 if (pending_entry_) {
957 DiscardNonCommittedEntries();
pdr15f5b5b2017-06-20 00:58:00958 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49959 }
[email protected]e9ba4472008-09-14 15:42:43960 return false;
961 default:
962 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20963 }
964
[email protected]688aa65c62012-09-28 04:32:22965 // At this point, we know that the navigation has just completed, so
966 // record the time.
967 //
968 // TODO(akalin): Use "sane time" as described in
Adam Langley4463fb832018-01-28 22:42:26969 // https://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33970 base::Time timestamp =
971 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
972 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22973 << timestamp.ToInternalValue();
974
[email protected]f233e4232013-02-23 00:55:14975 // We should not have a pending entry anymore. Clear it again in case any
976 // error cases above forgot to do so.
977 DiscardNonCommittedEntriesInternal();
978
[email protected]e9ba4472008-09-14 15:42:43979 // All committed entries should have nonempty content state so WebKit doesn't
980 // get confused when we go back to them (see the function for details).
creis0cade2e2017-02-28 06:37:47981 DCHECK(params.page_state.IsValid()) << "Shouldn't see an empty PageState.";
creis3da03872015-02-20 21:12:32982 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22983 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44984 active_entry->SetHttpStatusCode(params.http_status_code);
naskoc7533512016-05-06 17:01:12985
Charles Reisc0507202017-09-21 00:40:02986 // Grab the corresponding FrameNavigationEntry for a few updates, but only if
987 // the SiteInstance matches (to avoid updating the wrong entry by mistake).
988 // A mismatch can occur if the renderer lies or due to a unique name collision
989 // after a race with an OOPIF (see https://crbug.com/616820).
naskoc7533512016-05-06 17:01:12990 FrameNavigationEntry* frame_entry =
991 active_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisc0507202017-09-21 00:40:02992 if (frame_entry && frame_entry->site_instance() != rfh->GetSiteInstance())
993 frame_entry = nullptr;
Charles Reisf44482022017-10-13 21:15:03994 // Make sure we've updated the PageState in one of the helper methods.
creisce0ef3572017-01-26 17:53:08995 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
996 if (frame_entry) {
Charles Reisf44482022017-10-13 21:15:03997 DCHECK(params.page_state == frame_entry->page_state());
creis4e2ecb72015-06-20 00:46:30998 }
[email protected]132e281a2012-07-31 18:32:44999
[email protected]d6def3d2014-05-19 18:55:321000 // Use histogram to track memory impact of redirect chain because it's now
1001 // not cleared for committed entries.
1002 size_t redirect_chain_size = 0;
1003 for (size_t i = 0; i < params.redirects.size(); ++i) {
1004 redirect_chain_size += params.redirects[i].spec().length();
1005 }
1006 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
1007
[email protected]97d8f0d2013-10-29 16:49:211008 // Once it is committed, we no longer need to track several pieces of state on
1009 // the entry.
naskoc7533512016-05-06 17:01:121010 active_entry->ResetForCommit(frame_entry);
[email protected]60d6cca2013-04-30 08:47:131011
[email protected]49bd30e62011-03-22 20:12:591012 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:221013 // TODO(creis): This check won't pass for subframes until we create entries
1014 // for subframe navigations.
avi39c1edd32015-06-04 20:06:001015 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:421016 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:591017
[email protected]b26de072013-02-23 02:33:441018 // Remember the bindings the renderer process has at this point, so that
1019 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:321020 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:441021
[email protected]e9ba4472008-09-14 15:42:431022 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:001023 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:001024 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:311025 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:531026
[email protected]93f230e02011-06-01 14:40:001027 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:291028
John Abd-El-Malek380d3c5922017-09-08 00:20:311029 if (active_entry->GetURL().SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1030 navigation_handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek969cdd94e2017-07-10 22:18:161031 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus",
1032 !!active_entry->GetSSL().certificate);
1033 }
1034
aelias100c9192017-01-13 00:01:431035 if (overriding_user_agent_changed)
1036 delegate_->UpdateOverridingUserAgent();
1037
creis03b48002015-11-04 00:54:561038 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
1039 // one knows the latest NavigationEntry it is showing (whether it has
1040 // committed anything in this navigation or not). This allows things like
1041 // state and title updates from RenderFrames to apply to the latest relevant
1042 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:381043 int nav_entry_id = active_entry->GetUniqueID();
1044 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
1045 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:431046 return true;
initial.commit09911bf2008-07-26 23:55:291047}
1048
[email protected]8ff00d72012-10-23 19:12:211049NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:321050 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221051 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:381052 if (params.did_create_new_entry) {
1053 // A new entry. We may or may not have a pending entry for the page, and
1054 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:001055 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381056 return NAVIGATION_TYPE_NEW_PAGE;
1057 }
1058
1059 // When this is a new subframe navigation, we should have a committed page
1060 // in which it's a subframe. This may not be the case when an iframe is
1061 // navigated on a popup navigated to about:blank (the iframe would be
1062 // written into the popup by script on the main page). For these cases,
1063 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:231064 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381065 return NAVIGATION_TYPE_NAV_IGNORE;
1066
1067 // Valid subframe navigation.
1068 return NAVIGATION_TYPE_NEW_SUBFRAME;
1069 }
1070
avi7c6f35e2015-05-08 17:52:381071 // We only clear the session history when navigating to a new page.
1072 DCHECK(!params.history_list_was_cleared);
1073
avi39c1edd32015-06-04 20:06:001074 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381075 // All manual subframes would be did_create_new_entry and handled above, so
1076 // we know this is auto.
1077 if (GetLastCommittedEntry()) {
1078 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1079 } else {
1080 // We ignore subframes created in non-committed pages; we'd appreciate if
1081 // people stopped doing that.
1082 return NAVIGATION_TYPE_NAV_IGNORE;
1083 }
1084 }
1085
1086 if (params.nav_entry_id == 0) {
1087 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1088 // create a new page.
1089
1090 // Just like above in the did_create_new_entry case, it's possible to
1091 // scribble onto an uncommitted page. Again, there isn't any navigation
1092 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231093 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231094 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381095 return NAVIGATION_TYPE_NAV_IGNORE;
1096
Charles Reis1378111f2017-11-08 21:44:061097 // This is history.replaceState() or history.reload().
avi259dc792015-07-07 04:42:361098 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381099 }
1100
1101 if (pending_entry_ && pending_entry_index_ == -1 &&
1102 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1103 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421104 // didn't do a new navigation (params.did_create_new_entry). First check to
1105 // make sure Blink didn't treat a new cross-process navigation as inert, and
1106 // thus set params.did_create_new_entry to false. In that case, we must
1107 // treat it as NEW since the SiteInstance doesn't match the entry.
creis08557a22016-09-07 22:00:081108 if (!GetLastCommittedEntry() ||
creis5eb00a5f2016-08-24 03:50:281109 GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
creis77c9aa32015-09-25 19:59:421110 return NAVIGATION_TYPE_NEW_PAGE;
1111
1112 // Otherwise, this happens when you press enter in the URL bar to reload. We
1113 // will create a pending entry, but Blink will convert it to a reload since
1114 // it's the same page and not create a new entry for it (the user doesn't
1115 // want to have a new back/forward entry when they do this). Therefore we
1116 // want to just ignore the pending entry and go back to where we were (the
1117 // "existing entry").
1118 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381119 return NAVIGATION_TYPE_SAME_PAGE;
1120 }
1121
creis26d22632017-04-21 20:23:561122 // Everything below here is assumed to be an existing entry, but if there is
1123 // no last committed entry, we must consider it a new navigation instead.
1124 if (!GetLastCommittedEntry())
1125 return NAVIGATION_TYPE_NEW_PAGE;
1126
avi7c6f35e2015-05-08 17:52:381127 if (params.intended_as_new_entry) {
1128 // This was intended to be a navigation to a new entry but the pending entry
1129 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1130 // may not have a pending entry.
1131 return NAVIGATION_TYPE_EXISTING_PAGE;
1132 }
1133
1134 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1135 params.nav_entry_id == failed_pending_entry_id_) {
1136 // If the renderer was going to a new pending entry that got cleared because
1137 // of an error, this is the case of the user trying to retry a failed load
1138 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1139 // have a pending entry.
1140 return NAVIGATION_TYPE_EXISTING_PAGE;
1141 }
1142
1143 // Now we know that the notification is for an existing page. Find that entry.
1144 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1145 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441146 // The renderer has committed a navigation to an entry that no longer
1147 // exists. Because the renderer is showing that page, resurrect that entry.
1148 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381149 }
1150
avi7c6f35e2015-05-08 17:52:381151 // Since we weeded out "new" navigations above, we know this is an existing
1152 // (back/forward) navigation.
1153 return NAVIGATION_TYPE_EXISTING_PAGE;
1154}
1155
[email protected]d202a7c2012-01-04 07:53:471156void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321157 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221158 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361159 bool is_same_document,
clamy3bf35e3c2016-11-10 15:59:441160 bool replace_entry,
1161 NavigationHandleImpl* handle) {
dcheng9bfa5162016-04-09 01:00:571162 std::unique_ptr<NavigationEntryImpl> new_entry;
creisf49dfc92016-07-26 17:05:181163 bool update_virtual_url = false;
1164
1165 // First check if this is an in-page navigation. If so, clone the current
1166 // entry instead of looking at the pending entry, because the pending entry
1167 // does not have any subframe history items.
eugenebut604866f2017-05-10 21:35:361168 if (is_same_document && GetLastCommittedEntry()) {
creisf49dfc92016-07-26 17:05:181169 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481170 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisf49dfc92016-07-26 17:05:181171 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Charles Reisf44482022017-10-13 21:15:031172 params.url, params.referrer, params.redirects, params.page_state,
1173 params.method, params.post_id);
1174
creisf49dfc92016-07-26 17:05:181175 new_entry = GetLastCommittedEntry()->CloneAndReplace(
1176 frame_entry, true, rfh->frame_tree_node(),
1177 delegate_->GetFrameTree()->root());
jama78746e2017-02-22 17:21:571178 if (new_entry->GetURL().GetOrigin() != params.url.GetOrigin()) {
1179 // TODO(jam): we had one report of this with a URL that was redirecting to
1180 // only tildes. Until we understand that better, don't copy the cert in
1181 // this case.
1182 new_entry->GetSSL() = SSLStatus();
John Abd-El-Malek9cd697e2017-07-12 21:53:141183
John Abd-El-Malek380d3c5922017-09-08 00:20:311184 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1185 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141186 UMA_HISTOGRAM_BOOLEAN(
1187 "Navigation.SecureSchemeHasSSLStatus.NewPageInPageOriginMismatch",
1188 !!new_entry->GetSSL().certificate);
1189 }
jama78746e2017-02-22 17:21:571190 }
creisf49dfc92016-07-26 17:05:181191
1192 // We expect |frame_entry| to be owned by |new_entry|. This should never
1193 // fail, because it's the main frame.
1194 CHECK(frame_entry->HasOneRef());
1195
1196 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malek9cd697e2017-07-12 21:53:141197
John Abd-El-Malek380d3c5922017-09-08 00:20:311198 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1199 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141200 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.NewPageInPage",
1201 !!new_entry->GetSSL().certificate);
1202 }
creisf49dfc92016-07-26 17:05:181203 }
1204
[email protected]6dd86ab2013-02-27 00:30:341205 // Only make a copy of the pending entry if it is appropriate for the new page
csharrison9a9142bc42016-03-01 17:24:041206 // that was just loaded. Verify this by checking if the entry corresponds
clamy3bf35e3c2016-11-10 15:59:441207 // to the given navigation handle. Additionally, coarsely check that:
csharrison9a9142bc42016-03-01 17:24:041208 // 1. The SiteInstance hasn't been assigned to something else.
1209 // 2. The pending entry was intended as a new entry, rather than being a
1210 // history navigation that was interrupted by an unrelated,
1211 // renderer-initiated navigation.
1212 // TODO(csharrison): Investigate whether we can remove some of the coarser
1213 // checks.
creisf49dfc92016-07-26 17:05:181214 if (!new_entry &&
1215 PendingEntryMatchesHandle(handle) && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341216 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431217 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351218 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431219
[email protected]f1eb87a2011-05-06 17:49:411220 update_virtual_url = new_entry->update_virtual_url_with_url();
John Abd-El-Malekf36e05f2017-11-30 16:17:521221 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141222
John Abd-El-Malek380d3c5922017-09-08 00:20:311223 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1224 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141225 UMA_HISTOGRAM_BOOLEAN(
1226 "Navigation.SecureSchemeHasSSLStatus.NewPagePendingEntryMatches",
1227 !!new_entry->GetSSL().certificate);
1228 }
creisf49dfc92016-07-26 17:05:181229 }
1230
1231 // For non-in-page commits with no matching pending entry, create a new entry.
1232 if (!new_entry) {
dcheng9bfa5162016-04-09 01:00:571233 new_entry = base::WrapUnique(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241234
1235 // Find out whether the new entry needs to update its virtual URL on URL
1236 // change and set up the entry accordingly. This is needed to correctly
1237 // update the virtual URL when replaceState is called after a pushState.
1238 GURL url = params.url;
1239 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431240 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1241 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241242 new_entry->set_update_virtual_url_with_url(needs_update);
1243
[email protected]f1eb87a2011-05-06 17:49:411244 // When navigating to a new page, give the browser URL handler a chance to
1245 // update the virtual URL based on the new URL. For example, this is needed
1246 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1247 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241248 update_virtual_url = needs_update;
John Abd-El-Malekf36e05f2017-11-30 16:17:521249 new_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141250
John Abd-El-Malek380d3c5922017-09-08 00:20:311251 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1252 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141253 UMA_HISTOGRAM_BOOLEAN(
1254 "Navigation.SecureSchemeHasSSLStatus.NewPageNoMatchingEntry",
1255 !!new_entry->GetSSL().certificate);
1256 }
[email protected]e9ba4472008-09-14 15:42:431257 }
1258
wjmaclean7431bb22015-02-19 14:53:431259 // Don't use the page type from the pending entry. Some interstitial page
1260 // may have set the type to interstitial. Once we commit, however, the page
1261 // type must always be normal or error.
1262 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1263 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041264 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411265 if (update_virtual_url)
avi25764702015-06-23 15:43:371266 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251267 new_entry->SetReferrer(params.referrer);
[email protected]022af742011-12-28 18:37:251268 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331269 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431270 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]7c16976c2012-08-04 02:38:231271 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221272 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431273
creis8b5cd4c2015-06-19 00:11:081274 // Update the FrameNavigationEntry for new main frame commits.
1275 FrameNavigationEntry* frame_entry =
1276 new_entry->GetFrameEntry(rfh->frame_tree_node());
Charles Reisd2a509f2017-09-27 23:47:481277 frame_entry->set_frame_unique_name(rfh->frame_tree_node()->unique_name());
creis8b5cd4c2015-06-19 00:11:081278 frame_entry->set_item_sequence_number(params.item_sequence_number);
1279 frame_entry->set_document_sequence_number(params.document_sequence_number);
Charles Reisf44482022017-10-13 21:15:031280 frame_entry->set_redirect_chain(params.redirects);
1281 frame_entry->SetPageState(params.page_state);
clamy432acb22016-04-15 19:41:431282 frame_entry->set_method(params.method);
1283 frame_entry->set_post_id(params.post_id);
creis8b5cd4c2015-06-19 00:11:081284
eugenebut604866f2017-05-10 21:35:361285 // history.pushState() is classified as a navigation to a new page, but sets
1286 // is_same_document to true. In this case, we already have the title and
creisf49dfc92016-07-26 17:05:181287 // favicon available, so set them immediately.
eugenebut604866f2017-05-10 21:35:361288 if (is_same_document && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331289 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191290 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1291 }
[email protected]ff64b3e2014-05-31 04:07:331292
[email protected]60d6cca2013-04-30 08:47:131293 DCHECK(!params.history_list_was_cleared || !replace_entry);
1294 // The browser requested to clear the session history when it initiated the
1295 // navigation. Now we know that the renderer has updated its state accordingly
1296 // and it is safe to also clear the browser side history.
1297 if (params.history_list_was_cleared) {
1298 DiscardNonCommittedEntriesInternal();
1299 entries_.clear();
1300 last_committed_entry_index_ = -1;
1301 }
1302
dcheng36b6aec92015-12-26 06:16:361303 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431304}
1305
[email protected]d202a7c2012-01-04 07:53:471306void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321307 RenderFrameHostImpl* rfh,
jam0576b132016-09-07 05:13:101308 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361309 bool is_same_document,
jam48cea9082017-02-15 06:13:291310 bool was_restored,
clamy3bf35e3c2016-11-10 15:59:441311 NavigationHandleImpl* handle) {
creis26d22632017-04-21 20:23:561312 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1313 << "that a last committed entry exists.";
1314
[email protected]e9ba4472008-09-14 15:42:431315 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001316 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431317
avicbdc4c12015-07-01 16:07:111318 NavigationEntryImpl* entry;
1319 if (params.intended_as_new_entry) {
1320 // This was intended as a new entry but the pending entry was lost in the
1321 // meanwhile and no new page was created. We are stuck at the last committed
1322 // entry.
1323 entry = GetLastCommittedEntry();
eugenebut604866f2017-05-10 21:35:361324 // If this is a same document navigation, then there's no SSLStatus in the
jam1325c822017-03-17 18:20:541325 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361326 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521327 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141328
John Abd-El-Malek380d3c5922017-09-08 00:20:311329 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1330 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141331 bool has_cert = !!entry->GetSSL().certificate;
1332 if (is_same_document) {
1333 UMA_HISTOGRAM_BOOLEAN(
1334 "Navigation.SecureSchemeHasSSLStatus."
1335 "ExistingPageSameDocumentIntendedAsNew",
1336 has_cert);
1337 } else {
1338 UMA_HISTOGRAM_BOOLEAN(
1339 "Navigation.SecureSchemeHasSSLStatus."
1340 "ExistingPageDifferentDocumentIntendedAsNew",
1341 has_cert);
1342 }
1343 }
avicbdc4c12015-07-01 16:07:111344 } else if (params.nav_entry_id) {
1345 // This is a browser-initiated navigation (back/forward/reload).
1346 entry = GetEntryWithUniqueID(params.nav_entry_id);
jamd208b90ce2016-09-01 16:58:161347
eugenebut604866f2017-05-10 21:35:361348 if (is_same_document) {
1349 // There's no SSLStatus in the NavigationHandle for same document
1350 // navigations, so normally we leave |entry|'s SSLStatus as is. However if
1351 // this was a restored same document navigation entry, then it won't have
1352 // an SSLStatus. So we need to copy over the SSLStatus from the entry that
1353 // navigated it.
jam48cea9082017-02-15 06:13:291354 NavigationEntryImpl* last_entry = GetLastCommittedEntry();
1355 if (entry->GetURL().GetOrigin() == last_entry->GetURL().GetOrigin() &&
1356 last_entry->GetSSL().initialized && !entry->GetSSL().initialized &&
1357 was_restored) {
1358 entry->GetSSL() = last_entry->GetSSL();
1359 }
1360 } else {
John Abd-El-Malek3f247082017-12-07 19:02:191361 // In rapid back/forward navigations |handle| sometimes won't have a cert
1362 // (http://crbug.com/727892). So we use the handle's cert if it exists,
1363 // otherwise we only reuse the existing cert if the origins match.
1364 if (handle->GetSSLInfo().is_valid()) {
John Abd-El-Malekf36e05f2017-11-30 16:17:521365 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek3f247082017-12-07 19:02:191366 } else if (entry->GetURL().GetOrigin() != handle->GetURL().GetOrigin()) {
1367 entry->GetSSL() = SSLStatus();
1368 }
jam48cea9082017-02-15 06:13:291369 }
John Abd-El-Malek9cd697e2017-07-12 21:53:141370
John Abd-El-Malek380d3c5922017-09-08 00:20:311371 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1372 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141373 bool has_cert = !!entry->GetSSL().certificate;
1374 if (is_same_document && was_restored) {
1375 UMA_HISTOGRAM_BOOLEAN(
1376 "Navigation.SecureSchemeHasSSLStatus."
1377 "ExistingPageSameDocumentRestoredBrowserInitiated",
1378 has_cert);
1379 } else if (is_same_document && !was_restored) {
1380 UMA_HISTOGRAM_BOOLEAN(
1381 "Navigation.SecureSchemeHasSSLStatus."
1382 "ExistingPageSameDocumentBrowserInitiated",
1383 has_cert);
1384 } else if (!is_same_document && was_restored) {
1385 UMA_HISTOGRAM_BOOLEAN(
1386 "Navigation.SecureSchemeHasSSLStatus."
1387 "ExistingPageRestoredBrowserInitiated",
1388 has_cert);
1389 } else {
1390 UMA_HISTOGRAM_BOOLEAN(
1391 "Navigation.SecureSchemeHasSSLStatus.ExistingPageBrowserInitiated",
1392 has_cert);
1393 }
1394 }
avicbdc4c12015-07-01 16:07:111395 } else {
1396 // This is renderer-initiated. The only kinds of renderer-initated
Charles Reis1378111f2017-11-08 21:44:061397 // navigations that are EXISTING_PAGE are reloads and history.replaceState,
avicbdc4c12015-07-01 16:07:111398 // which land us at the last committed entry.
1399 entry = GetLastCommittedEntry();
jam0576b132016-09-07 05:13:101400
Mikel Astizba9cf2fd2017-12-17 10:38:101401 // TODO(crbug.com/751023): Set page transition type to PAGE_TRANSITION_LINK
1402 // to avoid misleading interpretations (e.g. URLs paired with
1403 // PAGE_TRANSITION_TYPED that haven't actually been typed) as well as to fix
1404 // the inconsistency with what we report to observers (PAGE_TRANSITION_LINK
1405 // | PAGE_TRANSITION_CLIENT_REDIRECT).
1406
1407 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(*entry, entry);
1408
eugenebut604866f2017-05-10 21:35:361409 // If this is a same document navigation, then there's no SSLStatus in the
jam0576b132016-09-07 05:13:101410 // NavigationHandle so don't overwrite the existing entry's SSLStatus.
eugenebut604866f2017-05-10 21:35:361411 if (!is_same_document)
John Abd-El-Malekf36e05f2017-11-30 16:17:521412 entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
John Abd-El-Malek9cd697e2017-07-12 21:53:141413
John Abd-El-Malek380d3c5922017-09-08 00:20:311414 if (params.url.SchemeIs(url::kHttpsScheme) && !rfh->GetParent() &&
1415 handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141416 bool has_cert = !!entry->GetSSL().certificate;
1417 if (is_same_document) {
1418 UMA_HISTOGRAM_BOOLEAN(
1419 "Navigation.SecureSchemeHasSSLStatus."
1420 "ExistingPageSameDocumentRendererInitiated",
1421 has_cert);
1422 } else {
1423 UMA_HISTOGRAM_BOOLEAN(
1424 "Navigation.SecureSchemeHasSSLStatus."
1425 "ExistingPageDifferentDocumentRendererInitiated",
1426 has_cert);
1427 }
1428 }
avicbdc4c12015-07-01 16:07:111429 }
1430 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431431
[email protected]5ccd4dc2012-10-24 02:28:141432 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431433 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1434 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041435 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201436 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321437 if (entry->update_virtual_url_with_url())
1438 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141439
jam015ba062017-01-06 21:17:001440 // The site instance will normally be the same except
1441 // 1) session restore, when no site instance will be assigned or
1442 // 2) redirect, when the site instance is reset.
naskoaf182192016-08-11 02:12:011443 DCHECK(entry->site_instance() == nullptr ||
jam015ba062017-01-06 21:17:001444 !entry->GetRedirectChain().empty() ||
naskoaf182192016-08-11 02:12:011445 entry->site_instance() == rfh->GetSiteInstance());
clamy432acb22016-04-15 19:41:431446
naskoaf182192016-08-11 02:12:011447 // Update the existing FrameNavigationEntry to ensure all of its members
1448 // reflect the parameters coming from the renderer process.
1449 entry->AddOrUpdateFrameEntry(
1450 rfh->frame_tree_node(), params.item_sequence_number,
1451 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
arthursonzognie6b67c20b2016-10-04 09:46:041452 params.url, params.referrer, params.redirects, params.page_state,
1453 params.method, params.post_id);
creis22a7b4c2016-04-28 07:20:301454
[email protected]5ccd4dc2012-10-24 02:28:141455 // The redirected to page should not inherit the favicon from the previous
1456 // page.
eugenebut604866f2017-05-10 21:35:361457 if (ui::PageTransitionIsRedirect(params.transition) && !is_same_document)
[email protected]91a4ff82012-10-29 20:29:481458 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141459
[email protected]e9ba4472008-09-14 15:42:431460 // The entry we found in the list might be pending if the user hit
1461 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591462 // list, we can just discard the pending pointer). We should also discard the
1463 // pending entry if it corresponds to a different navigation, since that one
1464 // is now likely canceled. If it is not canceled, we will treat it as a new
1465 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431466 //
1467 // Note that we need to use the "internal" version since we don't want to
1468 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491469 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391470
[email protected]80858db52009-10-15 00:35:181471 // If a transient entry was removed, the indices might have changed, so we
1472 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111473 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431474}
1475
[email protected]d202a7c2012-01-04 07:53:471476void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321477 RenderFrameHostImpl* rfh,
clamy3bf35e3c2016-11-10 15:59:441478 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
1479 NavigationHandleImpl* handle) {
aviaf5660962015-06-30 15:12:291480 // This classification says that we have a pending entry that's the same as
1481 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091482 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291483 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431484
creis77c9aa32015-09-25 19:59:421485 // If we classified this correctly, the SiteInstance should not have changed.
1486 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1487
[email protected]e9ba4472008-09-14 15:42:431488 // We assign the entry's unique ID to be that of the new one. Since this is
1489 // always the result of a user action, we want to dismiss infobars, etc. like
1490 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421491 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511492 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431493
[email protected]a0e69262009-06-03 19:08:481494 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431495 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1496 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321497 if (existing_entry->update_virtual_url_with_url())
1498 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041499 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481500
jamd208b90ce2016-09-01 16:58:161501 // If a user presses enter in the omnibox and the server redirects, the URL
1502 // might change (but it's still considered a SAME_PAGE navigation). So we must
1503 // update the SSL status.
John Abd-El-Malekf36e05f2017-11-30 16:17:521504 existing_entry->GetSSL() = SSLStatus(handle->GetSSLInfo());
jamd208b90ce2016-09-01 16:58:161505
John Abd-El-Malek509dfd62017-09-05 21:34:491506 if (existing_entry->GetURL().SchemeIs(url::kHttpsScheme) &&
John Abd-El-Malek380d3c5922017-09-08 00:20:311507 !rfh->GetParent() && handle->GetNetErrorCode() == net::OK) {
John Abd-El-Malek9cd697e2017-07-12 21:53:141508 UMA_HISTOGRAM_BOOLEAN("Navigation.SecureSchemeHasSSLStatus.SamePage",
1509 !!existing_entry->GetSSL().certificate);
1510 }
1511
jianlid26f6c92016-10-12 21:03:171512 // The extra headers may have changed due to reloading with different headers.
1513 existing_entry->set_extra_headers(pending_entry_->extra_headers());
1514
naskoaf182192016-08-11 02:12:011515 // Update the existing FrameNavigationEntry to ensure all of its members
1516 // reflect the parameters coming from the renderer process.
1517 existing_entry->AddOrUpdateFrameEntry(
1518 rfh->frame_tree_node(), params.item_sequence_number,
1519 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
arthursonzognie6b67c20b2016-10-04 09:46:041520 params.url, params.referrer, params.redirects, params.page_state,
1521 params.method, params.post_id);
[email protected]b77686522013-12-11 20:34:191522
[email protected]cbab76d2008-10-13 22:42:471523 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431524}
1525
[email protected]d202a7c2012-01-04 07:53:471526void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321527 RenderFrameHostImpl* rfh,
creis1857908a2016-02-25 20:31:521528 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
eugenebut604866f2017-05-10 21:35:361529 bool is_same_document,
creis1857908a2016-02-25 20:31:521530 bool replace_entry) {
avi25f5f9e2015-07-17 20:08:261531 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1532 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111533
[email protected]e9ba4472008-09-14 15:42:431534 // Manual subframe navigations just get the current entry cloned so the user
1535 // can go back or forward to it. The actual subframe information will be
1536 // stored in the page state for each of those entries. This happens out of
1537 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091538 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1539 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381540
Mikel Astizba9cf2fd2017-12-17 10:38:101541 // The DCHECK below documents the fact that we don't know of any situation
1542 // where |replace_entry| is true for subframe navigations. This simplifies
1543 // reasoning about the replacement struct for subframes (see
1544 // CopyReplacedNavigationEntryDataIfPreviouslyEmpty()).
1545 DCHECK(!replace_entry);
1546
creisce0ef3572017-01-26 17:53:081547 // Make sure we don't leak frame_entry if new_entry doesn't take ownership.
1548 scoped_refptr<FrameNavigationEntry> frame_entry(new FrameNavigationEntry(
Charles Reisd2a509f2017-09-27 23:47:481549 rfh->frame_tree_node()->unique_name(), params.item_sequence_number,
creisce0ef3572017-01-26 17:53:081550 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
Charles Reisf44482022017-10-13 21:15:031551 params.url, params.referrer, params.redirects, params.page_state,
1552 params.method, params.post_id));
1553
creisce0ef3572017-01-26 17:53:081554 std::unique_ptr<NavigationEntryImpl> new_entry =
1555 GetLastCommittedEntry()->CloneAndReplace(
eugenebut604866f2017-05-10 21:35:361556 frame_entry.get(), is_same_document, rfh->frame_tree_node(),
creisce0ef3572017-01-26 17:53:081557 delegate_->GetFrameTree()->root());
creise062d542015-08-25 02:01:551558
creisce0ef3572017-01-26 17:53:081559 // TODO(creis): Update this to add the frame_entry if we can't find the one
1560 // to replace, which can happen due to a unique name change. See
1561 // https://crbug.com/607205. For now, frame_entry will be deleted when it
1562 // goes out of scope if it doesn't get used.
creis96fc55082015-06-13 06:42:381563
creis1857908a2016-02-25 20:31:521564 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431565}
1566
[email protected]d202a7c2012-01-04 07:53:471567bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321568 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221569 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291570 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1571 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1572
[email protected]e9ba4472008-09-14 15:42:431573 // We're guaranteed to have a previously committed entry, and we now need to
1574 // handle navigation inside of a subframe in it without creating a new entry.
1575 DCHECK(GetLastCommittedEntry());
1576
creis913c63ce2016-07-16 19:52:521577 // For newly created subframes, we don't need to send a commit notification.
1578 // This is only necessary for history navigations in subframes.
1579 bool send_commit_notification = false;
1580
1581 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1582 // a history navigation. Update the last committed index accordingly.
1583 // If we don't recognize the |nav_entry_id|, it might be a recently pruned
1584 // entry. We'll handle it below.
avi98405c22015-05-21 20:47:061585 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511586 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
creis3cdc3b02015-05-29 23:00:471587 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061588 // Make sure that a subframe commit isn't changing the main frame's
1589 // origin. Otherwise the renderer process may be confused, leading to a
1590 // URL spoof. We can't check the path since that may change
1591 // (https://crbug.com/373041).
creis37988b92016-06-10 18:03:571592 // TODO(creis): For now, restrict this check to HTTP(S) origins, because
1593 // about:blank, file, and unique origins are more subtle to get right.
1594 // We'll abstract out the relevant checks from IsURLInPageNavigation and
1595 // share them here. See https://crbug.com/618104.
1596 const GURL& dest_top_url = GetEntryAtIndex(entry_index)->GetURL();
1597 const GURL& current_top_url = GetLastCommittedEntry()->GetURL();
1598 if (current_top_url.SchemeIsHTTPOrHTTPS() &&
1599 dest_top_url.SchemeIsHTTPOrHTTPS() &&
1600 current_top_url.GetOrigin() != dest_top_url.GetOrigin()) {
creisfb6eeb62016-05-10 19:01:511601 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1602 bad_message::NC_AUTO_SUBFRAME);
avi98405c22015-05-21 20:47:061603 }
creis3cdc3b02015-05-29 23:00:471604
creis913c63ce2016-07-16 19:52:521605 // We only need to discard the pending entry in this history navigation
1606 // case. For newly created subframes, there was no pending entry.
avi98405c22015-05-21 20:47:061607 last_committed_entry_index_ = entry_index;
1608 DiscardNonCommittedEntriesInternal();
creis913c63ce2016-07-16 19:52:521609
1610 // History navigations should send a commit notification.
1611 send_commit_notification = true;
avi98405c22015-05-21 20:47:061612 }
[email protected]e9ba4472008-09-14 15:42:431613 }
[email protected]f233e4232013-02-23 00:55:141614
creisce0ef3572017-01-26 17:53:081615 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1616 // it may be a "history auto" case where we update an existing one.
1617 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
1618 last_committed->AddOrUpdateFrameEntry(
1619 rfh->frame_tree_node(), params.item_sequence_number,
1620 params.document_sequence_number, rfh->GetSiteInstance(), nullptr,
1621 params.url, params.referrer, params.redirects, params.page_state,
1622 params.method, params.post_id);
creis625a0c7d2015-03-24 23:17:121623
creis913c63ce2016-07-16 19:52:521624 return send_commit_notification;
[email protected]e9ba4472008-09-14 15:42:431625}
1626
[email protected]d202a7c2012-01-04 07:53:471627int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231628 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031629 for (size_t i = 0; i < entries_.size(); ++i) {
1630 if (entries_[i].get() == entry)
1631 return i;
1632 }
1633 return -1;
[email protected]765b35502008-08-21 00:51:201634}
1635
Eugene But7cc259d2017-10-09 23:52:491636// There are two general cases where a navigation is "same-document":
avidb7d1d22015-06-08 21:21:501637// 1. A fragment navigation, in which the url is kept the same except for the
1638// reference fragment.
1639// 2. A history API navigation (pushState and replaceState). This case is
Eugene But7cc259d2017-10-09 23:52:491640// always same-document, but the urls are not guaranteed to match excluding
1641// the fragment. The relevant spec allows pushState/replaceState to any URL
1642// on the same origin.
avidb7d1d22015-06-08 21:21:501643// However, due to reloads, even identical urls are *not* guaranteed to be
Eugene But7cc259d2017-10-09 23:52:491644// same-document navigations, we have to trust the renderer almost entirely.
avidb7d1d22015-06-08 21:21:501645// The one thing we do know is that cross-origin navigations will *never* be
Eugene But7cc259d2017-10-09 23:52:491646// same-document. Therefore, trust the renderer if the URLs are on the same
1647// origin, and assume the renderer is malicious if a cross-origin navigation
1648// claims to be same-document.
creisf164daa2016-06-07 00:17:051649//
1650// TODO(creis): Clean up and simplify the about:blank and origin checks below,
1651// which are likely redundant with each other. Be careful about data URLs vs
1652// about:blank, both of which are unique origins and thus not considered equal.
Eugene But7cc259d2017-10-09 23:52:491653bool NavigationControllerImpl::IsURLSameDocumentNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121654 const GURL& url,
creisf164daa2016-06-07 00:17:051655 const url::Origin& origin,
Eugene But7cc259d2017-10-09 23:52:491656 bool renderer_says_same_document,
[email protected]5cfbddc2014-06-23 23:52:231657 RenderFrameHost* rfh) const {
creis225a7432016-06-03 22:56:271658 RenderFrameHostImpl* rfhi = static_cast<RenderFrameHostImpl*>(rfh);
avidb7d1d22015-06-08 21:21:501659 GURL last_committed_url;
1660 if (rfh->GetParent()) {
creis225a7432016-06-03 22:56:271661 // Use the FrameTreeNode's current_url and not rfh->GetLastCommittedURL(),
1662 // which might be empty in a new RenderFrameHost after a process swap.
1663 // Here, we care about the last committed URL in the FrameTreeNode,
1664 // regardless of which process it is in.
1665 last_committed_url = rfhi->frame_tree_node()->current_url();
avidb7d1d22015-06-08 21:21:501666 } else {
1667 NavigationEntry* last_committed = GetLastCommittedEntry();
1668 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1669 // might Blink say that a navigation is in-page yet there be no last-
1670 // committed entry?
1671 if (!last_committed)
1672 return false;
1673 last_committed_url = last_committed->GetURL();
1674 }
1675
1676 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creis225a7432016-06-03 22:56:271677 const url::Origin& committed_origin =
1678 rfhi->frame_tree_node()->current_origin();
avidb7d1d22015-06-08 21:21:501679 bool is_same_origin = last_committed_url.is_empty() ||
1680 // TODO(japhet): We should only permit navigations
1681 // originating from about:blank to be in-page if the
1682 // about:blank is the first document that frame loaded.
1683 // We don't have sufficient information to identify
1684 // that case at the moment, so always allow about:blank
1685 // for now.
csharrisona3bd0b32016-10-19 18:40:481686 last_committed_url == url::kAboutBlankURL ||
avidb7d1d22015-06-08 21:21:501687 last_committed_url.GetOrigin() == url.GetOrigin() ||
creisf164daa2016-06-07 00:17:051688 committed_origin == origin ||
avidb7d1d22015-06-08 21:21:501689 !prefs.web_security_enabled ||
1690 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471691 committed_origin.scheme() == url::kFileScheme);
Eugene But7cc259d2017-10-09 23:52:491692 if (!is_same_origin && renderer_says_same_document) {
avidb7d1d22015-06-08 21:21:501693 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1694 bad_message::NC_IN_PAGE_NAVIGATION);
1695 }
Eugene But7cc259d2017-10-09 23:52:491696 return is_same_origin && renderer_says_same_document;
[email protected]e9ba4472008-09-14 15:42:431697}
1698
Francois Dorayeaace782017-06-21 16:37:241699void NavigationControllerImpl::CopyStateFrom(const NavigationController& temp,
1700 bool needs_reload) {
[email protected]d202a7c2012-01-04 07:53:471701 const NavigationControllerImpl& source =
1702 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571703 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551704 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571705
[email protected]a26023822011-12-29 00:23:551706 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571707 return; // Nothing new to do.
1708
Francois Dorayeaace782017-06-21 16:37:241709 needs_reload_ = needs_reload;
[email protected]a26023822011-12-29 00:23:551710 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571711
[email protected]fdac6ade2013-07-20 01:06:301712 for (SessionStorageNamespaceMap::const_iterator it =
1713 source.session_storage_namespace_map_.begin();
1714 it != source.session_storage_namespace_map_.end();
1715 ++it) {
1716 SessionStorageNamespaceImpl* source_namespace =
1717 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1718 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1719 }
[email protected]4e6419c2010-01-15 04:50:341720
toyoshim0df1d3a2016-09-09 09:52:481721 FinishRestore(source.last_committed_entry_index_,
1722 RestoreType::CURRENT_SESSION);
[email protected]ce3fa3c2009-04-20 19:55:571723}
1724
[email protected]d202a7c2012-01-04 07:53:471725void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571726 NavigationController* temp,
1727 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161728 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011729 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161730
[email protected]d202a7c2012-01-04 07:53:471731 NavigationControllerImpl* source =
1732 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251733
avi2b177592014-12-10 02:08:021734 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011735 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251736
[email protected]474f8512013-05-31 22:31:161737 // We now have one entry, possibly with a new pending entry. Ensure that
1738 // adding the entries from source won't put us over the limit.
1739 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571740 if (!replace_entry)
1741 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251742
[email protected]47e020a2010-10-15 14:43:371743 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021744 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161745 // since it has not committed in source.
1746 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251747 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551748 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251749 else
1750 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571751
1752 // Ignore the source's current entry if merging with replacement.
1753 // TODO(davidben): This should preserve entries forward of the current
1754 // too. http://crbug.com/317872
1755 if (replace_entry && max_source_index > 0)
1756 max_source_index--;
1757
[email protected]47e020a2010-10-15 14:43:371758 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251759
1760 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551761 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141762
avi2b177592014-12-10 02:08:021763 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1764 GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251765}
1766
[email protected]79368982013-11-13 01:11:011767bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161768 // If there is no last committed entry, we cannot prune. Even if there is a
1769 // pending entry, it may not commit, leaving this WebContents blank, despite
1770 // possibly giving it new entries via CopyStateFromAndPrune.
1771 if (last_committed_entry_index_ == -1)
1772 return false;
[email protected]9350602e2013-02-26 23:27:441773
[email protected]474f8512013-05-31 22:31:161774 // We cannot prune if there is a pending entry at an existing entry index.
1775 // It may not commit, so we have to keep the last committed entry, and thus
1776 // there is no sensible place to keep the pending entry. It is ok to have
1777 // a new pending entry, which can optionally commit as a new navigation.
1778 if (pending_entry_index_ != -1)
1779 return false;
1780
1781 // We should not prune if we are currently showing a transient entry.
1782 if (transient_entry_index_ != -1)
1783 return false;
1784
1785 return true;
1786}
1787
[email protected]79368982013-11-13 01:11:011788void NavigationControllerImpl::PruneAllButLastCommitted() {
1789 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161790
avi2b177592014-12-10 02:08:021791 DCHECK_EQ(0, last_committed_entry_index_);
1792 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441793
avi2b177592014-12-10 02:08:021794 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1795 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441796}
1797
[email protected]79368982013-11-13 01:11:011798void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161799 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011800 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261801
[email protected]474f8512013-05-31 22:31:161802 // Erase all entries but the last committed entry. There may still be a
1803 // new pending entry after this.
1804 entries_.erase(entries_.begin(),
1805 entries_.begin() + last_committed_entry_index_);
1806 entries_.erase(entries_.begin() + 1, entries_.end());
1807 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261808}
1809
[email protected]15f46dc2013-01-24 05:40:241810void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101811 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241812}
1813
[email protected]d1198fd2012-08-13 22:50:191814void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301815 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211816 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191817 if (!session_storage_namespace)
1818 return;
1819
1820 // We can't overwrite an existing SessionStorage without violating spec.
1821 // Attempts to do so may give a tab access to another tab's session storage
1822 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301823 bool successful_insert = session_storage_namespace_map_.insert(
1824 make_pair(partition_id,
1825 static_cast<SessionStorageNamespaceImpl*>(
1826 session_storage_namespace)))
1827 .second;
1828 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191829}
1830
[email protected]aa62afd2014-04-22 19:22:461831bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461832 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101833 !GetLastCommittedEntry() &&
1834 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461835}
1836
[email protected]a26023822011-12-29 00:23:551837SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301838NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1839 std::string partition_id;
1840 if (instance) {
1841 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1842 // this if statement so |instance| must not be NULL.
1843 partition_id =
1844 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1845 browser_context_, instance->GetSiteURL());
1846 }
[email protected]d1198fd2012-08-13 22:50:191847
[email protected]fdac6ade2013-07-20 01:06:301848 // TODO(ajwong): Should this use the |partition_id| directly rather than
1849 // re-lookup via |instance|? http://crbug.com/142685
1850 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031851 BrowserContext::GetStoragePartition(browser_context_, instance);
1852 DOMStorageContextWrapper* context_wrapper =
1853 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1854
1855 SessionStorageNamespaceMap::const_iterator it =
1856 session_storage_namespace_map_.find(partition_id);
1857 if (it != session_storage_namespace_map_.end()) {
1858 // Ensure that this namespace actually belongs to this partition.
1859 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1860 IsFromContext(context_wrapper));
1861 return it->second.get();
1862 }
1863
1864 // Create one if no one has accessed session storage for this partition yet.
Daniel Murphy31bbb8b12018-02-07 21:44:101865 scoped_refptr<SessionStorageNamespaceImpl> session_storage_namespace =
1866 SessionStorageNamespaceImpl::Create(context_wrapper);
1867 SessionStorageNamespaceImpl* session_storage_namespace_ptr =
1868 session_storage_namespace.get();
1869 session_storage_namespace_map_[partition_id] =
1870 std::move(session_storage_namespace);
[email protected]fdac6ade2013-07-20 01:06:301871
Daniel Murphy31bbb8b12018-02-07 21:44:101872 return session_storage_namespace_ptr;
[email protected]fdac6ade2013-07-20 01:06:301873}
1874
1875SessionStorageNamespace*
1876NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1877 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
Ivan Kotenkov2c0d2bb32017-11-01 15:41:281878 return GetSessionStorageNamespace(nullptr);
[email protected]fdac6ade2013-07-20 01:06:301879}
1880
1881const SessionStorageNamespaceMap&
1882NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1883 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551884}
[email protected]d202a7c2012-01-04 07:53:471885
1886bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561887 return needs_reload_;
1888}
[email protected]a26023822011-12-29 00:23:551889
[email protected]46bb5e9c2013-10-03 22:16:471890void NavigationControllerImpl::SetNeedsReload() {
1891 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541892
1893 if (last_committed_entry_index_ != -1) {
1894 entries_[last_committed_entry_index_]->SetTransitionType(
1895 ui::PAGE_TRANSITION_RELOAD);
1896 }
[email protected]46bb5e9c2013-10-03 22:16:471897}
1898
[email protected]d202a7c2012-01-04 07:53:471899void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551900 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121901 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311902
1903 DiscardNonCommittedEntries();
1904
1905 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121906 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311907 last_committed_entry_index_--;
1908}
1909
[email protected]d202a7c2012-01-04 07:53:471910void NavigationControllerImpl::DiscardNonCommittedEntries() {
pdr15f5b5b2017-06-20 00:58:001911 bool transient = transient_entry_index_ != -1;
[email protected]cbab76d2008-10-13 22:42:471912 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291913
pdr15f5b5b2017-06-20 00:58:001914 // If there was a transient entry, invalidate everything so the new active
1915 // entry state is shown.
1916 if (transient) {
1917 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471918 }
initial.commit09911bf2008-07-26 23:55:291919}
1920
creis3da03872015-02-20 21:12:321921NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
arthursonzogni5c4c202d2017-04-25 23:41:271922 // If there is no pending_entry_, there should be no pending_entry_index_.
1923 DCHECK(pending_entry_ || pending_entry_index_ == -1);
1924
1925 // If there is a pending_entry_index_, then pending_entry_ must be the entry
1926 // at that index.
1927 DCHECK(pending_entry_index_ == -1 ||
1928 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
1929
[email protected]022af742011-12-28 18:37:251930 return pending_entry_;
1931}
1932
[email protected]d202a7c2012-01-04 07:53:471933int NavigationControllerImpl::GetPendingEntryIndex() const {
arthursonzogni5c4c202d2017-04-25 23:41:271934 // The pending entry index must always be less than the number of entries.
1935 // If there are no entries, it must be exactly -1.
1936 DCHECK_LT(pending_entry_index_, GetEntryCount());
1937 DCHECK(GetEntryCount() != 0 || pending_entry_index_ == -1);
[email protected]a26023822011-12-29 00:23:551938 return pending_entry_index_;
1939}
1940
avi25764702015-06-23 15:43:371941void NavigationControllerImpl::InsertOrReplaceEntry(
dcheng9bfa5162016-04-09 01:00:571942 std::unique_ptr<NavigationEntryImpl> entry,
1943 bool replace) {
mastiz7eddb5f72016-06-23 09:52:451944 DCHECK(!ui::PageTransitionCoreTypeIs(entry->GetTransitionType(),
1945 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
[email protected]765b35502008-08-21 00:51:201946
avi5cad4912015-06-19 05:25:441947 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1948 // need to keep continuity with the pending entry, so copy the pending entry's
1949 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1950 // then the renderer navigated on its own, independent of the pending entry,
1951 // so don't copy anything.
1952 if (pending_entry_ && pending_entry_index_ == -1)
1953 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201954
[email protected]cbab76d2008-10-13 22:42:471955 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201956
1957 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221958
1959 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181960 if (replace && current_size > 0) {
Mikel Astizba9cf2fd2017-12-17 10:38:101961 CopyReplacedNavigationEntryDataIfPreviouslyEmpty(
1962 *entries_[last_committed_entry_index_], entry.get());
dcheng36b6aec92015-12-26 06:16:361963 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221964 return;
1965 }
[email protected]765b35502008-08-21 00:51:201966
creis37979a62015-08-04 19:48:181967 // We shouldn't see replace == true when there's no committed entries.
1968 DCHECK(!replace);
1969
[email protected]765b35502008-08-21 00:51:201970 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451971 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311972 // last_committed_entry_index_ must be updated here since calls to
1973 // NotifyPrunedEntries() below may re-enter and we must make sure
1974 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491975 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311976 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491977 num_pruned++;
[email protected]765b35502008-08-21 00:51:201978 entries_.pop_back();
1979 current_size--;
1980 }
[email protected]c12bf1a12008-09-17 16:28:491981 if (num_pruned > 0) // Only notify if we did prune something.
1982 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201983 }
1984
[email protected]944822b2012-03-02 20:57:251985 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201986
dcheng36b6aec92015-12-26 06:16:361987 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201988 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
initial.commit09911bf2008-07-26 23:55:291989}
1990
[email protected]944822b2012-03-02 20:57:251991void NavigationControllerImpl::PruneOldestEntryIfFull() {
1992 if (entries_.size() >= max_entry_count()) {
1993 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021994 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251995 RemoveEntryAtIndex(0);
1996 NotifyPrunedEntries(this, true, 1);
1997 }
1998}
1999
[email protected]d202a7c2012-01-04 07:53:472000void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
arthursonzogni5c4c202d2017-04-25 23:41:272001 DCHECK(pending_entry_);
[email protected]72097fd02010-01-21 23:36:012002 needs_reload_ = false;
2003
[email protected]83c2e232011-10-07 21:36:462004 // If we were navigating to a slow-to-commit page, and the user performs
2005 // a session history navigation to the last committed page, RenderViewHost
2006 // will force the throbber to start, but WebKit will essentially ignore the
2007 // navigation, and won't send a message to stop the throbber. To prevent this
2008 // from happening, we drop the navigation here and stop the slow-to-commit
2009 // page from loading (which would normally happen during the navigation).
2010 if (pending_entry_index_ != -1 &&
2011 pending_entry_index_ == last_committed_entry_index_ &&
arthursonzogni5c4c202d2017-04-25 23:41:272012 pending_entry_->restore_type() == RestoreType::NONE &&
2013 pending_entry_->GetTransitionType() & ui::PAGE_TRANSITION_FORWARD_BACK) {
[email protected]ec6c05f2013-10-23 18:41:572014 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:122015
avi668f5232017-06-22 22:52:172016 // If an interstitial page is showing, we want to close it to get back to
2017 // what was showing before.
2018 //
2019 // There are two ways to get the interstitial page given a WebContents.
2020 // Because WebContents::GetInterstitialPage() returns null between the
2021 // interstitial's Show() method being called and the interstitial becoming
2022 // visible, while InterstitialPage::GetInterstitialPage() returns the
2023 // interstitial during that time, use the latter.
2024 InterstitialPage* interstitial =
2025 InterstitialPage::GetInterstitialPage(GetWebContents());
2026 if (interstitial)
2027 interstitial->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:122028
[email protected]83c2e232011-10-07 21:36:462029 DiscardNonCommittedEntries();
2030 return;
2031 }
2032
[email protected]6a13a6c2011-12-20 21:47:122033 // If an interstitial page is showing, the previous renderer is blocked and
2034 // cannot make new requests. Unblock (and disable) it to allow this
2035 // navigation to succeed. The interstitial will stay visible until the
2036 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:572037 if (delegate_->GetInterstitialPage()) {
ananta3bdd8ae2016-12-22 17:11:552038 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())
2039 ->CancelForNavigation();
[email protected]cadaec52012-02-08 21:53:132040 }
[email protected]6a13a6c2011-12-20 21:47:122041
clamy0a656e42018-02-06 18:18:282042 // Convert navigations to the current URL to a reload.
2043 if (ShouldTreatNavigationAsReload(
2044 pending_entry_->GetURL(), pending_entry_->GetVirtualURL(),
2045 pending_entry_->GetBaseURLForDataURL(),
2046 pending_entry_->GetTransitionType(),
2047 pending_entry_->frame_tree_node_id() == -1 /* is_main_frame */,
2048 pending_entry_->GetHasPostData() /* is _post */,
2049 reload_type != ReloadType::NONE /* is_reload */,
2050 pending_entry_index_ != -1 /* is_navigation_to_existing_entry */,
2051 transient_entry_index_ != -1 /* has_interstitial */,
2052 GetLastCommittedEntry())) {
ananta3bdd8ae2016-12-22 17:11:552053 reload_type = ReloadType::NORMAL;
2054 }
2055
creiscf40d9c2015-09-11 18:20:542056 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
2057 // renderer process is not live, unless it is the initial navigation of the
2058 // tab.
2059 if (IsRendererDebugURL(pending_entry_->GetURL())) {
2060 // TODO(creis): Find the RVH for the correct frame.
2061 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
2062 !IsInitialNavigation()) {
2063 DiscardNonCommittedEntries();
2064 return;
2065 }
2066 }
2067
[email protected]40fd3032014-02-28 22:16:282068 // This call does not support re-entrancy. See http://crbug.com/347742.
2069 CHECK(!in_navigate_to_pending_entry_);
2070 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:302071 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:282072 in_navigate_to_pending_entry_ = false;
2073
2074 if (!success)
[email protected]cbab76d2008-10-13 22:42:472075 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:292076}
2077
creis4e2ecb72015-06-20 00:46:302078bool NavigationControllerImpl::NavigateToPendingEntryInternal(
2079 ReloadType reload_type) {
2080 DCHECK(pending_entry_);
2081 FrameTreeNode* root = delegate_->GetFrameTree()->root();
2082
creisce0ef3572017-01-26 17:53:082083 // Compare FrameNavigationEntries to see which frames in the tree need to be
2084 // navigated.
creis4e2ecb72015-06-20 00:46:302085 FrameLoadVector same_document_loads;
2086 FrameLoadVector different_document_loads;
2087 if (GetLastCommittedEntry()) {
2088 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
2089 }
2090
2091 if (same_document_loads.empty() && different_document_loads.empty()) {
2092 // If we don't have any frames to navigate at this point, either
2093 // (1) there is no previous history entry to compare against, or
2094 // (2) we were unable to match any frames by name. In the first case,
2095 // doing a different document navigation to the root item is the only valid
2096 // thing to do. In the second case, we should have been able to find a
2097 // frame to navigate based on names if this were a same document
2098 // navigation, so we can safely assume this is the different document case.
2099 different_document_loads.push_back(
2100 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
2101 }
2102
2103 // If all the frame loads fail, we will discard the pending entry.
2104 bool success = false;
2105
2106 // Send all the same document frame loads before the different document loads.
2107 for (const auto& item : same_document_loads) {
2108 FrameTreeNode* frame = item.first;
2109 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
2110 reload_type, true);
2111 }
2112 for (const auto& item : different_document_loads) {
2113 FrameTreeNode* frame = item.first;
2114 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
2115 reload_type, false);
2116 }
2117 return success;
2118}
2119
2120void NavigationControllerImpl::FindFramesToNavigate(
2121 FrameTreeNode* frame,
2122 FrameLoadVector* same_document_loads,
2123 FrameLoadVector* different_document_loads) {
2124 DCHECK(pending_entry_);
2125 DCHECK_GE(last_committed_entry_index_, 0);
2126 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
creis225a7432016-06-03 22:56:272127 // TODO(creis): Store the last committed FrameNavigationEntry to use here,
2128 // rather than assuming the NavigationEntry has up to date info on subframes.
creis4e2ecb72015-06-20 00:46:302129 FrameNavigationEntry* old_item =
2130 GetLastCommittedEntry()->GetFrameEntry(frame);
2131 if (!new_item)
2132 return;
2133
2134 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:562135 // sequence number in the same SiteInstance. Newly restored items may not have
2136 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:302137 if (!old_item ||
2138 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:562139 (new_item->site_instance() != nullptr &&
2140 new_item->site_instance() != old_item->site_instance())) {
creis54131692016-08-12 18:32:252141 // Same document loads happen if the previous item has the same document
2142 // sequence number. Note that we should treat them as different document if
2143 // the destination RenderFrameHost (which is necessarily the current
2144 // RenderFrameHost for same document navigations) doesn't have a last
2145 // committed page. This case can happen for Ctrl+Back or after a renderer
2146 // crash.
creis4e2ecb72015-06-20 00:46:302147 if (old_item &&
2148 new_item->document_sequence_number() ==
creis54131692016-08-12 18:32:252149 old_item->document_sequence_number() &&
Avi Drissman2eb7a482017-11-30 04:36:312150 !frame->current_frame_host()->GetLastCommittedURL().is_empty()) {
creis4e2ecb72015-06-20 00:46:302151 same_document_loads->push_back(std::make_pair(frame, new_item));
avib48cb312016-05-05 21:35:002152
2153 // TODO(avi, creis): This is a bug; we should not return here. Rather, we
2154 // should continue on and navigate all child frames which have also
2155 // changed. This bug is the cause of <https://crbug.com/542299>, which is
2156 // a NC_IN_PAGE_NAVIGATION renderer kill.
2157 //
2158 // However, this bug is a bandaid over a deeper and worse problem. Doing a
2159 // pushState immediately after loading a subframe is a race, one that no
2160 // web page author expects. If we fix this bug, many large websites break.
2161 // For example, see <https://crbug.com/598043> and the spec discussion at
2162 // <https://github.com/whatwg/html/issues/1191>.
2163 //
2164 // For now, we accept this bug, and hope to resolve the race in a
2165 // different way that will one day allow us to fix this.
2166 return;
creis4e2ecb72015-06-20 00:46:302167 } else {
2168 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:582169 // For a different document, the subframes will be destroyed, so there's
2170 // no need to consider them.
2171 return;
creis4e2ecb72015-06-20 00:46:302172 }
creis4e2ecb72015-06-20 00:46:302173 }
2174
2175 for (size_t i = 0; i < frame->child_count(); i++) {
2176 FindFramesToNavigate(frame->child_at(i), same_document_loads,
2177 different_document_loads);
2178 }
2179}
2180
[email protected]d202a7c2012-01-04 07:53:472181void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:212182 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:272183 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:402184
[email protected]2db9bd72012-04-13 20:20:562185 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:402186 // location bar will have up-to-date information about the security style
2187 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:132188 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:402189
[email protected]7f924832014-08-09 05:57:222190 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:572191 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:462192
[email protected]b0f724c2013-09-05 04:21:132193 // TODO(avi): Remove. http://crbug.com/170921
2194 NotificationDetails notification_details =
2195 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:212196 NotificationService::current()->Notify(
2197 NOTIFICATION_NAV_ENTRY_COMMITTED,
2198 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:402199 notification_details);
initial.commit09911bf2008-07-26 23:55:292200}
2201
initial.commit09911bf2008-07-26 23:55:292202// static
[email protected]d202a7c2012-01-04 07:53:472203size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:232204 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
2205 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:212206 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:232207}
2208
[email protected]d202a7c2012-01-04 07:53:472209void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:222210 if (is_active && needs_reload_)
2211 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:292212}
2213
[email protected]d202a7c2012-01-04 07:53:472214void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:292215 if (!needs_reload_)
2216 return;
2217
initial.commit09911bf2008-07-26 23:55:292218 // Calling Reload() results in ignoring state, and not loading.
2219 // Explicitly use NavigateToPendingEntry so that the renderer uses the
2220 // cached state.
avicc872d7242015-08-19 21:26:342221 if (pending_entry_) {
toyoshim0df1d3a2016-09-09 09:52:482222 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342223 } else if (last_committed_entry_index_ != -1) {
arthursonzogni5c4c202d2017-04-25 23:41:272224 pending_entry_ = entries_[last_committed_entry_index_].get();
avicc872d7242015-08-19 21:26:342225 pending_entry_index_ = last_committed_entry_index_;
toyoshim0df1d3a2016-09-09 09:52:482226 NavigateToPendingEntry(ReloadType::NONE);
avicc872d7242015-08-19 21:26:342227 } else {
2228 // If there is something to reload, the successful reload will clear the
2229 // |needs_reload_| flag. Otherwise, just do it here.
2230 needs_reload_ = false;
2231 }
initial.commit09911bf2008-07-26 23:55:292232}
2233
avi47179332015-05-20 21:01:112234void NavigationControllerImpl::NotifyEntryChanged(
2235 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:212236 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:092237 det.changed_entry = entry;
avi47179332015-05-20 21:01:112238 det.index = GetIndexOfEntry(
2239 NavigationEntryImpl::FromNavigationEntry(entry));
Sam McNally5c087a32017-08-25 01:46:142240 delegate_->NotifyNavigationEntryChanged(det);
initial.commit09911bf2008-07-26 23:55:292241}
2242
[email protected]d202a7c2012-01-04 07:53:472243void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:362244 RestoreType type) {
[email protected]a26023822011-12-29 00:23:552245 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:362246 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:292247
initial.commit09911bf2008-07-26 23:55:292248 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:292249}
[email protected]765b35502008-08-21 00:51:202250
[email protected]d202a7c2012-01-04 07:53:472251void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:452252 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:482253 DiscardTransientEntry();
2254}
2255
avi45a72532015-04-07 21:01:452256void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:282257 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:402258 // progress, since this will cause a use-after-free. (We only allow this
2259 // when the tab is being destroyed for shutdown, since it won't return to
2260 // NavigateToEntry in that case.) http://crbug.com/347742.
2261 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:282262
avi45a72532015-04-07 21:01:452263 if (was_failure && pending_entry_) {
2264 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
avi45a72532015-04-07 21:01:452265 } else {
2266 failed_pending_entry_id_ = 0;
2267 }
2268
arthursonzogni5c4c202d2017-04-25 23:41:272269 if (pending_entry_) {
2270 if (pending_entry_index_ == -1)
2271 delete pending_entry_;
2272 pending_entry_index_ = -1;
2273 pending_entry_ = nullptr;
2274 }
[email protected]cbab76d2008-10-13 22:42:472275}
2276
ananta3bdd8ae2016-12-22 17:11:552277void NavigationControllerImpl::SetPendingNavigationSSLError(bool error) {
2278 if (pending_entry_)
2279 pending_entry_->set_ssl_error(error);
2280}
2281
[email protected]d202a7c2012-01-04 07:53:472282void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:472283 if (transient_entry_index_ == -1)
2284 return;
[email protected]a0e69262009-06-03 19:08:482285 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:182286 if (last_committed_entry_index_ > transient_entry_index_)
2287 last_committed_entry_index_--;
arthursonzogni5c4c202d2017-04-25 23:41:272288 if (pending_entry_index_ > transient_entry_index_)
2289 pending_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:472290 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:202291}
2292
avi7c6f35e2015-05-08 17:52:382293int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2294 int nav_entry_id) const {
2295 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2296 if (entries_[i]->GetUniqueID() == nav_entry_id)
2297 return i;
2298 }
2299 return -1;
2300}
2301
creis3da03872015-02-20 21:12:322302NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472303 if (transient_entry_index_ == -1)
Ivan Kotenkov2c0d2bb32017-11-01 15:41:282304 return nullptr;
avif16f85a72015-11-13 18:25:032305 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472306}
[email protected]e1cd5452010-08-26 18:03:252307
avi25764702015-06-23 15:43:372308void NavigationControllerImpl::SetTransientEntry(
dcheng9bfa5162016-04-09 01:00:572309 std::unique_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212310 // Discard any current transient entry, we can only have one at a time.
2311 int index = 0;
2312 if (last_committed_entry_index_ != -1)
2313 index = last_committed_entry_index_ + 1;
2314 DiscardTransientEntry();
avi25764702015-06-23 15:43:372315 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362316 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
arthursonzogni5c4c202d2017-04-25 23:41:272317 if (pending_entry_index_ >= index)
2318 pending_entry_index_++;
[email protected]0b684262013-02-20 02:18:212319 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222320 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212321}
2322
[email protected]d202a7c2012-01-04 07:53:472323void NavigationControllerImpl::InsertEntriesFrom(
2324 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252325 int max_index) {
[email protected]a26023822011-12-29 00:23:552326 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252327 size_t insert_index = 0;
2328 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352329 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372330 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352331 // TODO(creis): Once we start sharing FrameNavigationEntries between
2332 // NavigationEntries, it will not be safe to share them with another tab.
2333 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252334 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362335 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252336 }
2337 }
arthursonzogni5c4c202d2017-04-25 23:41:272338 DCHECK(pending_entry_index_ == -1 ||
2339 pending_entry_ == GetEntryAtIndex(pending_entry_index_));
[email protected]e1cd5452010-08-26 18:03:252340}
[email protected]c5b88d82012-10-06 17:03:332341
2342void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2343 const base::Callback<base::Time()>& get_timestamp_callback) {
2344 get_timestamp_callback_ = get_timestamp_callback;
2345}
[email protected]8ff00d72012-10-23 19:12:212346
2347} // namespace content