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|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/browser_navigator.h"
#include <algorithm>
#include "base/command_line.h"
#include "base/prefs/pref_service.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_about_handler.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/tab_helper.h"
#include "chrome/browser/google/google_url_tracker.h"
#include "chrome/browser/prefs/incognito_mode_prefs.h"
#include "chrome/browser/prerender/prerender_manager.h"
#include "chrome/browser/prerender/prerender_manager_factory.h"
#include "chrome/browser/prerender/prerender_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_instant_controller.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/host_desktop.h"
#include "chrome/browser/ui/omnibox/location_bar.h"
#include "chrome/browser/ui/search/instant_search_prerenderer.h"
#include "chrome/browser/ui/singleton_tabs.h"
#include "chrome/browser/ui/status_bubble.h"
#include "chrome/browser/ui/tab_helpers.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/web_applications/web_app.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/browser_url_handler.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_view.h"
#include "extensions/common/extension.h"
#if defined(USE_ASH)
#include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
#endif
#if defined(USE_AURA)
#include "ui/aura/window.h"
#endif
using content::GlobalRequestID;
using content::NavigationController;
using content::WebContents;
class BrowserNavigatorWebContentsAdoption {
public:
static void AttachTabHelpers(content::WebContents* contents) {
TabHelpers::AttachTabHelpers(contents);
}
};
namespace {
// Returns true if the specified Browser can open tabs. Not all Browsers support
// multiple tabs, such as app frames and popups. This function returns false for
// those types of Browser.
bool WindowCanOpenTabs(Browser* browser) {
return browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP) ||
browser->tab_strip_model()->empty();
}
// Finds an existing Browser compatible with |profile|, making a new one if no
// such Browser is located.
Browser* GetOrCreateBrowser(Profile* profile,
chrome::HostDesktopType host_desktop_type) {
Browser* browser = chrome::FindTabbedBrowser(profile, false,
host_desktop_type);
return browser ? browser : new Browser(
Browser::CreateParams(profile, host_desktop_type));
}
// Change some of the navigation parameters based on the particular URL.
// Currently this applies to some chrome:// pages which we always want to open
// in a non-incognito window. Note that even though a ChromeOS guest session is
// technically an incognito window, these URLs are allowed.
// Returns true on success. Otherwise, if changing params leads the browser into
// an erroneous state, returns false.
bool AdjustNavigateParamsForURL(chrome::NavigateParams* params) {
if (params->target_contents != NULL ||
chrome::IsURLAllowedInIncognito(params->url,
params->initiating_profile) ||
params->initiating_profile->IsGuestSession()) {
return true;
}
Profile* profile = params->initiating_profile;
if (profile->IsOffTheRecord() || params->disposition == OFF_THE_RECORD) {
profile = profile->GetOriginalProfile();
// If incognito is forced, we punt.
PrefService* prefs = profile->GetPrefs();
if (prefs && IncognitoModePrefs::GetAvailability(prefs) ==
IncognitoModePrefs::FORCED) {
return false;
}
params->disposition = SINGLETON_TAB;
params->browser = GetOrCreateBrowser(profile, params->host_desktop_type);
params->window_action = chrome::NavigateParams::SHOW_WINDOW;
}
return true;
}
// Returns a Browser that can host the navigation or tab addition specified in
// |params|. This might just return the same Browser specified in |params|, or
// some other if that Browser is deemed incompatible.
Browser* GetBrowserForDisposition(chrome::NavigateParams* params) {
// If no source WebContents was specified, we use the selected one from
// the target browser. This must happen first, before
// GetBrowserForDisposition() has a chance to replace |params->browser| with
// another one.
if (!params->source_contents && params->browser) {
params->source_contents =
params->browser->tab_strip_model()->GetActiveWebContents();
}
Profile* profile = params->initiating_profile;
switch (params->disposition) {
case CURRENT_TAB:
if (params->browser)
return params->browser;
// Find a compatible window and re-execute this command in it. Otherwise
// re-run with NEW_WINDOW.
return GetOrCreateBrowser(profile, params->host_desktop_type);
case SINGLETON_TAB:
case NEW_FOREGROUND_TAB:
case NEW_BACKGROUND_TAB:
// See if we can open the tab in the window this navigator is bound to.
if (params->browser && WindowCanOpenTabs(params->browser))
return params->browser;
// Find a compatible window and re-execute this command in it. Otherwise
// re-run with NEW_WINDOW.
return GetOrCreateBrowser(profile, params->host_desktop_type);
case NEW_POPUP: {
// Make a new popup window.
// Coerce app-style if |source| represents an app.
std::string app_name;
if (!params->extension_app_id.empty()) {
app_name = web_app::GenerateApplicationNameFromExtensionId(
params->extension_app_id);
} else if (params->browser && !params->browser->app_name().empty()) {
app_name = params->browser->app_name();
} else if (params->source_contents) {
extensions::TabHelper* extensions_tab_helper =
extensions::TabHelper::FromWebContents(params->source_contents);
if (extensions_tab_helper && extensions_tab_helper->is_app()) {
app_name = web_app::GenerateApplicationNameFromExtensionId(
extensions_tab_helper->extension_app()->id());
}
}
if (app_name.empty()) {
Browser::CreateParams browser_params(
Browser::TYPE_POPUP, profile, params->host_desktop_type);
browser_params.initial_bounds = params->window_bounds;
return new Browser(browser_params);
}
return new Browser(Browser::CreateParams::CreateForApp(
Browser::TYPE_POPUP, app_name, params->window_bounds, profile,
params->host_desktop_type));
}
case NEW_WINDOW: {
// Make a new normal browser window.
return new Browser(Browser::CreateParams(profile,
params->host_desktop_type));
}
case OFF_THE_RECORD:
// Make or find an incognito window.
return GetOrCreateBrowser(profile->GetOffTheRecordProfile(),
params->host_desktop_type);
// The following types all result in no navigation.
case SUPPRESS_OPEN:
case SAVE_TO_DISK:
case IGNORE_ACTION:
return NULL;
default:
NOTREACHED();
}
return NULL;
}
// Fix disposition and other parameter values depending on prevailing
// conditions.
void NormalizeDisposition(chrome::NavigateParams* params) {
// Calculate the WindowOpenDisposition if necessary.
if (params->browser->tab_strip_model()->empty() &&
(params->disposition == NEW_BACKGROUND_TAB ||
params->disposition == CURRENT_TAB ||
params->disposition == SINGLETON_TAB)) {
params->disposition = NEW_FOREGROUND_TAB;
}
if (params->browser->profile()->IsOffTheRecord() &&
params->disposition == OFF_THE_RECORD) {
params->disposition = NEW_FOREGROUND_TAB;
}
if (!params->source_contents && params->disposition == CURRENT_TAB)
params->disposition = NEW_FOREGROUND_TAB;
switch (params->disposition) {
case NEW_BACKGROUND_TAB:
// Disposition trumps add types. ADD_ACTIVE is a default, so we need to
// remove it if disposition implies the tab is going to open in the
// background.
params->tabstrip_add_types &= ~TabStripModel::ADD_ACTIVE;
break;
case NEW_WINDOW:
case NEW_POPUP:
// Code that wants to open a new window typically expects it to be shown
// automatically.
if (params->window_action == chrome::NavigateParams::NO_ACTION)
params->window_action = chrome::NavigateParams::SHOW_WINDOW;
// Fall-through.
case NEW_FOREGROUND_TAB:
case SINGLETON_TAB:
params->tabstrip_add_types |= TabStripModel::ADD_ACTIVE;
break;
default:
break;
}
}
// Obtain the profile used by the code that originated the Navigate() request.
Profile* GetSourceProfile(chrome::NavigateParams* params) {
if (params->source_contents) {
return Profile::FromBrowserContext(
params->source_contents->GetBrowserContext());
}
return params->initiating_profile;
}
void LoadURLInContents(WebContents* target_contents,
const GURL& url,
chrome::NavigateParams* params) {
NavigationController::LoadURLParams load_url_params(url);
load_url_params.referrer = params->referrer;
load_url_params.frame_tree_node_id = params->frame_tree_node_id;
load_url_params.redirect_chain = params->redirect_chain;
load_url_params.transition_type = params->transition;
load_url_params.extra_headers = params->extra_headers;
load_url_params.should_replace_current_entry =
params->should_replace_current_entry;
if (params->transferred_global_request_id != GlobalRequestID()) {
load_url_params.is_renderer_initiated = params->is_renderer_initiated;
load_url_params.transferred_global_request_id =
params->transferred_global_request_id;
} else if (params->is_renderer_initiated) {
load_url_params.is_renderer_initiated = true;
}
// Only allows the browser-initiated navigation to use POST.
if (params->uses_post && !params->is_renderer_initiated) {
load_url_params.load_type =
NavigationController::LOAD_TYPE_BROWSER_INITIATED_HTTP_POST;
load_url_params.browser_initiated_post_data =
params->browser_initiated_post_data;
}
target_contents->GetController().LoadURLWithParams(load_url_params);
}
// This class makes sure the Browser object held in |params| is made visible
// by the time it goes out of scope, provided |params| wants it to be shown.
class ScopedBrowserShower {
public:
explicit ScopedBrowserShower(chrome::NavigateParams* params)
: params_(params) {
}
~ScopedBrowserShower() {
if (params_->window_action == chrome::NavigateParams::SHOW_WINDOW_INACTIVE)
params_->browser->window()->ShowInactive();
else if (params_->window_action == chrome::NavigateParams::SHOW_WINDOW)
params_->browser->window()->Show();
}
private:
chrome::NavigateParams* params_;
DISALLOW_COPY_AND_ASSIGN(ScopedBrowserShower);
};
// This class manages the lifetime of a WebContents created by the
// Navigate() function. When Navigate() creates a WebContents for a URL,
// an instance of this class takes ownership of it via TakeOwnership() until the
// WebContents is added to a tab strip at which time ownership is
// relinquished via ReleaseOwnership(). If this object goes out of scope without
// being added to a tab strip, the created WebContents is deleted to
// avoid a leak and the params->target_contents field is set to NULL.
class ScopedTargetContentsOwner {
public:
explicit ScopedTargetContentsOwner(chrome::NavigateParams* params)
: params_(params) {
}
~ScopedTargetContentsOwner() {
if (target_contents_owner_.get())
params_->target_contents = NULL;
}
// Assumes ownership of |params_|' target_contents until ReleaseOwnership
// is called.
void TakeOwnership() {
target_contents_owner_.reset(params_->target_contents);
}
// Relinquishes ownership of |params_|' target_contents.
WebContents* ReleaseOwnership() {
return target_contents_owner_.release();
}
private:
chrome::NavigateParams* params_;
scoped_ptr<WebContents> target_contents_owner_;
DISALLOW_COPY_AND_ASSIGN(ScopedTargetContentsOwner);
};
content::WebContents* CreateTargetContents(const chrome::NavigateParams& params,
const GURL& url) {
WebContents::CreateParams create_params(
params.browser->profile(),
tab_util::GetSiteInstanceForNewTab(params.browser->profile(), url));
if (params.source_contents) {
create_params.initial_size =
params.source_contents->GetView()->GetContainerSize();
if (params.should_set_opener)
create_params.opener = params.source_contents;
}
if (params.disposition == NEW_BACKGROUND_TAB)
create_params.initially_hidden = true;
#if defined(USE_AURA)
if (params.browser->window() &&
params.browser->window()->GetNativeWindow()) {
create_params.context =
params.browser->window()->GetNativeWindow();
}
#endif
WebContents* target_contents = WebContents::Create(create_params);
// New tabs can have WebUI URLs that will make calls back to arbitrary
// tab helpers, so the entire set of tab helpers needs to be set up
// immediately.
BrowserNavigatorWebContentsAdoption::AttachTabHelpers(target_contents);
extensions::TabHelper::FromWebContents(target_contents)->
SetExtensionAppById(params.extension_app_id);
return target_contents;
}
// If a prerendered page exists for |url|, replace the page at
// |params->target_contents| with it and update to point to the swapped-in
// WebContents.
bool SwapInPrerender(const GURL& url, chrome::NavigateParams* params) {
Profile* profile =
Profile::FromBrowserContext(params->target_contents->GetBrowserContext());
InstantSearchPrerenderer* prerenderer =
InstantSearchPrerenderer::GetForProfile(profile);
if (prerenderer && prerenderer->UsePrerenderedPage(url, params))
return true;
prerender::PrerenderManager* prerender_manager =
prerender::PrerenderManagerFactory::GetForProfile(profile);
return prerender_manager &&
prerender_manager->MaybeUsePrerenderedPage(url, params);
}
chrome::HostDesktopType GetHostDesktop(Browser* browser) {
if (browser)
return browser->host_desktop_type();
return chrome::GetActiveDesktop();
}
} // namespace
namespace chrome {
NavigateParams::NavigateParams(Browser* a_browser,
const GURL& a_url,
content::PageTransition a_transition)
: url(a_url),
frame_tree_node_id(-1),
uses_post(false),
target_contents(NULL),
source_contents(NULL),
disposition(CURRENT_TAB),
transition(a_transition),
is_renderer_initiated(false),
tabstrip_index(-1),
tabstrip_add_types(TabStripModel::ADD_ACTIVE),
window_action(NO_ACTION),
user_gesture(true),
path_behavior(RESPECT),
ref_behavior(IGNORE_REF),
browser(a_browser),
initiating_profile(NULL),
host_desktop_type(GetHostDesktop(a_browser)),
should_replace_current_entry(false),
should_set_opener(false) {
}
NavigateParams::NavigateParams(Browser* a_browser,
WebContents* a_target_contents)
: frame_tree_node_id(-1),
uses_post(false),
target_contents(a_target_contents),
source_contents(NULL),
disposition(CURRENT_TAB),
transition(content::PAGE_TRANSITION_LINK),
is_renderer_initiated(false),
tabstrip_index(-1),
tabstrip_add_types(TabStripModel::ADD_ACTIVE),
window_action(NO_ACTION),
user_gesture(true),
path_behavior(RESPECT),
ref_behavior(IGNORE_REF),
browser(a_browser),
initiating_profile(NULL),
host_desktop_type(GetHostDesktop(a_browser)),
should_replace_current_entry(false),
should_set_opener(false) {
}
NavigateParams::NavigateParams(Profile* a_profile,
const GURL& a_url,
content::PageTransition a_transition)
: url(a_url),
frame_tree_node_id(-1),
uses_post(false),
target_contents(NULL),
source_contents(NULL),
disposition(NEW_FOREGROUND_TAB),
transition(a_transition),
is_renderer_initiated(false),
tabstrip_index(-1),
tabstrip_add_types(TabStripModel::ADD_ACTIVE),
window_action(SHOW_WINDOW),
user_gesture(true),
path_behavior(RESPECT),
ref_behavior(IGNORE_REF),
browser(NULL),
initiating_profile(a_profile),
host_desktop_type(chrome::GetActiveDesktop()),
should_replace_current_entry(false),
should_set_opener(false) {
}
NavigateParams::~NavigateParams() {}
void FillNavigateParamsFromOpenURLParams(chrome::NavigateParams* nav_params,
const content::OpenURLParams& params) {
nav_params->referrer = params.referrer;
nav_params->frame_tree_node_id = params.frame_tree_node_id;
nav_params->redirect_chain = params.redirect_chain;
nav_params->extra_headers = params.extra_headers;
nav_params->disposition = params.disposition;
nav_params->is_renderer_initiated = params.is_renderer_initiated;
nav_params->transferred_global_request_id =
params.transferred_global_request_id;
nav_params->should_replace_current_entry =
params.should_replace_current_entry;
nav_params->uses_post = params.uses_post;
nav_params->browser_initiated_post_data = params.browser_initiated_post_data;
}
void Navigate(NavigateParams* params) {
Browser* source_browser = params->browser;
if (source_browser)
params->initiating_profile = source_browser->profile();
DCHECK(params->initiating_profile);
if (!AdjustNavigateParamsForURL(params))
return;
ExtensionService* service = params->initiating_profile->GetExtensionService();
if (service)
service->ShouldBlockUrlInBrowserTab(¶ms->url);
// The browser window may want to adjust the disposition.
if (params->disposition == NEW_POPUP &&
source_browser &&
source_browser->window()) {
params->disposition =
source_browser->window()->GetDispositionForPopupBounds(
params->window_bounds);
}
params->browser = GetBrowserForDisposition(params);
if (!params->browser)
return;
#if defined(USE_ASH)
if (source_browser && source_browser != params->browser) {
// When the newly created browser was spawned by a browser which visits
// another user's desktop, it should be shown on the same desktop as the
// originating one. (This is part of the desktop separation per profile).
MultiUserWindowManager* manager = MultiUserWindowManager::GetInstance();
// Some unit tests have no manager instantiated.
if (manager) {
aura::Window* src_window = source_browser->window()->GetNativeWindow();
aura::Window* new_window = params->browser->window()->GetNativeWindow();
const std::string& src_user =
manager->GetUserPresentingWindow(src_window);
if (src_user != manager->GetUserPresentingWindow(new_window)) {
// Once the window gets presented, it should be shown on the same
// desktop as the desktop of the creating browser. Note that this
// command will not show the window if it wasn't shown yet by the
// browser creation.
manager->ShowWindowForUser(new_window, src_user);
}
}
}
#endif
// Navigate() must not return early after this point.
if (GetSourceProfile(params) != params->browser->profile()) {
// A tab is being opened from a link from a different profile, we must reset
// source information that may cause state to be shared.
params->source_contents = NULL;
params->referrer = content::Referrer();
}
// Make sure the Browser is shown if params call for it.
ScopedBrowserShower shower(params);
// Makes sure any WebContents created by this function is destroyed if
// not properly added to a tab strip.
ScopedTargetContentsOwner target_contents_owner(params);
// Some dispositions need coercion to base types.
NormalizeDisposition(params);
// If a new window has been created, it needs to be shown.
if (params->window_action == NavigateParams::NO_ACTION &&
source_browser != params->browser &&
params->browser->tab_strip_model()->empty()) {
params->window_action = NavigateParams::SHOW_WINDOW;
}
// If we create a popup window from a non user-gesture, don't activate it.
if (params->window_action == NavigateParams::SHOW_WINDOW &&
params->disposition == NEW_POPUP &&
params->user_gesture == false) {
params->window_action = NavigateParams::SHOW_WINDOW_INACTIVE;
}
// Determine if the navigation was user initiated. If it was, we need to
// inform the target WebContents, and we may need to update the UI.
content::PageTransition base_transition =
content::PageTransitionStripQualifier(params->transition);
bool user_initiated =
params->transition & content::PAGE_TRANSITION_FROM_ADDRESS_BAR ||
base_transition == content::PAGE_TRANSITION_TYPED ||
base_transition == content::PAGE_TRANSITION_AUTO_BOOKMARK ||
base_transition == content::PAGE_TRANSITION_GENERATED ||
base_transition == content::PAGE_TRANSITION_AUTO_TOPLEVEL ||
base_transition == content::PAGE_TRANSITION_RELOAD ||
base_transition == content::PAGE_TRANSITION_KEYWORD;
// Check if this is a singleton tab that already exists
int singleton_index = chrome::GetIndexOfSingletonTab(params);
// Did we use a prerender?
bool swapped_in_prerender = false;
// If no target WebContents was specified, we need to construct one if
// we are supposed to target a new tab; unless it's a singleton that already
// exists.
if (!params->target_contents && singleton_index < 0) {
GURL url;
if (params->url.is_empty()) {
url = params->browser->profile()->GetHomePage();
params->transition = content::PageTransitionFromInt(
params->transition | content::PAGE_TRANSITION_HOME_PAGE);
} else {
url = params->url;
}
if (params->disposition != CURRENT_TAB) {
params->target_contents = CreateTargetContents(*params, url);
// This function takes ownership of |params->target_contents| until it
// is added to a TabStripModel.
target_contents_owner.TakeOwnership();
} else {
// ... otherwise if we're loading in the current tab, the target is the
// same as the source.
DCHECK(params->source_contents);
params->target_contents = params->source_contents;
DCHECK(params->target_contents);
// Prerender expects |params->target_contents| to be attached to a browser
// window, so only call for CURRENT_TAB navigations. (Others are currently
// unsupported because of session storage namespaces anyway.)
// Notice that this includes middle-clicking, since middle clicking
// translates into a chrome::Navigate call with no URL followed by a
// CURRENT_TAB navigation.
// TODO(tburkard): We can actually swap in in non-CURRENT_TAB cases, as
// long as the WebContents we swap into is part of a TabStrip model.
// Therefore, we should swap in regardless of CURRENT_TAB, and instead,
// check in the swapin function whether the WebContents is not in a
// TabStrip model, in which case we must not swap in.
swapped_in_prerender = SwapInPrerender(url, params);
}
if (user_initiated)
params->target_contents->UserGestureDone();
if (!swapped_in_prerender) {
// Try to handle non-navigational URLs that popup dialogs and such, these
// should not actually navigate.
if (!HandleNonNavigationAboutURL(url)) {
// Perform the actual navigation, tracking whether it came from the
// renderer.
LoadURLInContents(params->target_contents, url, params);
// For prerender bookkeeping purposes, record that this pending navigate
// originated from chrome::Navigate.
content::NavigationEntry* entry =
params->target_contents->GetController().GetPendingEntry();
if (entry)
entry->SetExtraData(prerender::kChromeNavigateExtraDataKey,
base::string16());
}
}
} else {
// |target_contents| was specified non-NULL, and so we assume it has already
// been navigated appropriately. We need to do nothing more other than
// add it to the appropriate tabstrip.
}
// If the user navigated from the omnibox, and the selected tab is going to
// lose focus, then make sure the focus for the source tab goes away from the
// omnibox.
if (params->source_contents &&
(params->disposition == NEW_FOREGROUND_TAB ||
params->disposition == NEW_WINDOW) &&
(params->tabstrip_add_types & TabStripModel::ADD_INHERIT_OPENER))
params->source_contents->GetView()->Focus();
if (params->source_contents == params->target_contents ||
(swapped_in_prerender && params->disposition == CURRENT_TAB)) {
// The navigation occurred in the source tab.
params->browser->UpdateUIForNavigationInTab(params->target_contents,
params->transition,
user_initiated);
} else if (singleton_index == -1) {
// If some non-default value is set for the index, we should tell the
// TabStripModel to respect it.
if (params->tabstrip_index != -1)
params->tabstrip_add_types |= TabStripModel::ADD_FORCE_INDEX;
// The navigation should insert a new tab into the target Browser.
params->browser->tab_strip_model()->AddWebContents(
params->target_contents,
params->tabstrip_index,
params->transition,
params->tabstrip_add_types);
// Now that the |params->target_contents| is safely owned by the target
// Browser's TabStripModel, we can release ownership.
target_contents_owner.ReleaseOwnership();
}
if (singleton_index >= 0) {
WebContents* target =
params->browser->tab_strip_model()->GetWebContentsAt(singleton_index);
if (target->IsCrashed()) {
target->GetController().Reload(true);
} else if (params->path_behavior == NavigateParams::IGNORE_AND_NAVIGATE &&
target->GetURL() != params->url) {
LoadURLInContents(target, params->url, params);
// For prerender bookkeeping purposes, record that this pending navigate
// originated from chrome::Navigate.
content::NavigationEntry* entry =
target->GetController().GetPendingEntry();
if (entry)
entry->SetExtraData(prerender::kChromeNavigateExtraDataKey,
base::string16());
}
// If the singleton tab isn't already selected, select it.
if (params->source_contents != params->target_contents) {
params->browser->tab_strip_model()->ActivateTabAt(singleton_index,
user_initiated);
}
}
if (params->disposition != CURRENT_TAB) {
content::NotificationService::current()->Notify(
chrome::NOTIFICATION_TAB_ADDED,
content::Source<content::WebContentsDelegate>(params->browser),
content::Details<WebContents>(params->target_contents));
}
}
bool IsURLAllowedInIncognito(const GURL& url,
content::BrowserContext* browser_context) {
if (url.scheme() == content::kViewSourceScheme) {
// A view-source URL is allowed in incognito mode only if the URL itself
// is allowed in incognito mode. Remove the "view-source:" from the start
// of the URL and validate the rest.
std::string stripped_spec = url.spec();
DCHECK_GT(stripped_spec.size(), strlen(content::kViewSourceScheme));
stripped_spec.erase(0, strlen(content::kViewSourceScheme) + 1);
GURL stripped_url(stripped_spec);
return stripped_url.is_valid() &&
IsURLAllowedInIncognito(stripped_url, browser_context);
}
// Most URLs are allowed in incognito; the following are exceptions.
// chrome://extensions is on the list because it redirects to
// chrome://settings.
if (url.scheme() == content::kChromeUIScheme &&
(url.host() == chrome::kChromeUISettingsHost ||
url.host() == chrome::kChromeUISettingsFrameHost ||
url.host() == chrome::kChromeUIExtensionsHost ||
url.host() == chrome::kChromeUIBookmarksHost ||
#if defined(ENABLE_ENHANCED_BOOKMARKS)
url.host() == chrome::kChromeUIEnhancedBookmarksHost ||
#endif
#if !defined(OS_CHROMEOS)
url.host() == chrome::kChromeUIChromeSigninHost ||
#endif
url.host() == chrome::kChromeUIUberHost ||
url.host() == chrome::kChromeUIThumbnailHost ||
url.host() == chrome::kChromeUIThumbnailHost2 ||
url.host() == chrome::kChromeUIThumbnailListHost)) {
return false;
}
if (url.scheme() == chrome::kChromeSearchScheme &&
(url.host() == chrome::kChromeUIThumbnailHost ||
url.host() == chrome::kChromeUIThumbnailHost2 ||
url.host() == chrome::kChromeUIThumbnailListHost)) {
return false;
}
GURL rewritten_url = url;
bool reverse_on_redirect = false;
content::BrowserURLHandler::GetInstance()->RewriteURLIfNecessary(
&rewritten_url, browser_context, &reverse_on_redirect);
// Some URLs are mapped to uber subpages. Do not allow them in incognito.
return !(rewritten_url.scheme() == content::kChromeUIScheme &&
rewritten_url.host() == chrome::kChromeUIUberHost);
}
} // namespace chrome
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