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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.
#ifndef CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
#define CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
#pragma once
#include <set>
#include <string>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "chrome/browser/content_settings/local_shared_objects_container.h"
#include "chrome/browser/geolocation/geolocation_settings_state.h"
#include "chrome/common/content_settings.h"
#include "chrome/common/content_settings_types.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_contents_observer.h"
class CookiesTreeModel;
class Profile;
namespace content {
class RenderViewHost;
}
namespace net {
class CookieList;
class CookieOptions;
}
class TabSpecificContentSettings : public content::WebContentsObserver,
public content::NotificationObserver {
public:
// Classes that want to be notified about site data events must implement
// this abstract class and add themselves as observer to the
// |TabSpecificContentSettings|.
class SiteDataObserver {
public:
explicit SiteDataObserver(
TabSpecificContentSettings* tab_specific_content_settings);
virtual ~SiteDataObserver();
// Called whenever site data is accessed.
virtual void OnSiteDataAccessed() = 0;
TabSpecificContentSettings* tab_specific_content_settings() {
return tab_specific_content_settings_;
}
private:
TabSpecificContentSettings* tab_specific_content_settings_;
DISALLOW_COPY_AND_ASSIGN(SiteDataObserver);
};
explicit TabSpecificContentSettings(content::WebContents* tab);
virtual ~TabSpecificContentSettings();
// Returns the object given a render view's id.
static TabSpecificContentSettings* Get(int render_process_id,
int render_view_id);
// Static methods called on the UI threads.
// Called when cookies for the given URL were read either from within the
// current page or while loading it. |blocked_by_policy| should be true, if
// reading cookies was blocked due to the user's content settings. In that
// case, this function should invoke OnContentBlocked.
static void CookiesRead(int render_process_id,
int render_view_id,
const GURL& url,
const GURL& first_party_url,
const net::CookieList& cookie_list,
bool blocked_by_policy);
// Called when a specific cookie in the current page was changed.
// |blocked_by_policy| should be true, if the cookie was blocked due to the
// user's content settings. In that case, this function should invoke
// OnContentBlocked.
static void CookieChanged(int render_process_id,
int render_view_id,
const GURL& url,
const GURL& first_party_url,
const std::string& cookie_line,
const net::CookieOptions& options,
bool blocked_by_policy);
// Called when a specific Web database in the current page was accessed. If
// access was blocked due to the user's content settings,
// |blocked_by_policy| should be true, and this function should invoke
// OnContentBlocked.
static void WebDatabaseAccessed(int render_process_id,
int render_view_id,
const GURL& url,
const string16& name,
const string16& display_name,
bool blocked_by_policy);
// Called when a specific DOM storage area in the current page was
// accessed. If access was blocked due to the user's content settings,
// |blocked_by_policy| should be true, and this function should invoke
// OnContentBlocked.
static void DOMStorageAccessed(int render_process_id,
int render_view_id,
const GURL& url,
bool local,
bool blocked_by_policy);
// Called when a specific indexed db factory in the current page was
// accessed. If access was blocked due to the user's content settings,
// |blocked_by_policy| should be true, and this function should invoke
// OnContentBlocked.
static void IndexedDBAccessed(int render_process_id,
int render_view_id,
const GURL& url,
const string16& description,
bool blocked_by_policy);
// Called when a specific file system in the current page was accessed.
// If access was blocked due to the user's content settings,
// |blocked_by_policy| should be true, and this function should invoke
// OnContentBlocked.
static void FileSystemAccessed(int render_process_id,
int render_view_id,
const GURL& url,
bool blocked_by_policy);
// Resets the |content_blocked_| and |content_accessed_| arrays, except for
// CONTENT_SETTINGS_TYPE_COOKIES related information.
void ClearBlockedContentSettingsExceptForCookies();
// Resets all cookies related information.
void ClearCookieSpecificContentSettings();
// Clears the Geolocation settings.
void ClearGeolocationContentSettings();
// Changes the |content_blocked_| entry for popups.
void SetPopupsBlocked(bool blocked);
// Updates Geolocation settings on navigation.
void GeolocationDidNavigate(
const content::LoadCommittedDetails& details);
// Returns whether a particular kind of content has been blocked for this
// page.
bool IsContentBlocked(ContentSettingsType content_type) const;
// Returns true if content blockage was indicated to the user.
bool IsBlockageIndicated(ContentSettingsType content_type) const;
void SetBlockageHasBeenIndicated(ContentSettingsType content_type);
// Returns whether a particular kind of content has been accessed. Currently
// only tracks cookies.
bool IsContentAccessed(ContentSettingsType content_type) const;
const std::set<std::string>& BlockedResourcesForType(
ContentSettingsType content_type) const;
// Returns the GeolocationSettingsState that controls the
// geolocation API usage on this page.
const GeolocationSettingsState& geolocation_settings_state() const {
return geolocation_settings_state_;
}
// Returns a pointer to the |LocalSharedObjectsContainer| that contains all
// allowed local shared objects like cookies, local storage, ... .
const LocalSharedObjectsContainer& allowed_local_shared_objects() const {
return allowed_local_shared_objects_;
}
// Returns a pointer to the |LocalSharedObjectsContainer| that contains all
// blocked local shared objects like cookies, local storage, ... .
const LocalSharedObjectsContainer& blocked_local_shared_objects() const {
return blocked_local_shared_objects_;
}
bool load_plugins_link_enabled() { return load_plugins_link_enabled_; }
void set_load_plugins_link_enabled(bool enabled) {
load_plugins_link_enabled_ = enabled;
}
// content::WebContentsObserver overrides.
virtual void RenderViewForInterstitialPageCreated(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) OVERRIDE;
virtual void DidStartProvisionalLoadForFrame(
int64 frame_id,
bool is_main_frame,
const GURL& validated_url,
bool is_error_page,
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void AppCacheAccessed(const GURL& manifest_url,
bool blocked_by_policy) OVERRIDE;
// Message handlers. Public for testing.
void OnContentBlocked(ContentSettingsType type,
const std::string& resource_identifier);
// These methods are invoked on the UI thread by the static functions above.
// Public for testing.
void OnCookiesRead(const GURL& url,
const GURL& first_party_url,
const net::CookieList& cookie_list,
bool blocked_by_policy);
void OnCookieChanged(const GURL& url,
const GURL& first_party_url,
const std::string& cookie_line,
const net::CookieOptions& options,
bool blocked_by_policy);
void OnFileSystemAccessed(const GURL& url,
bool blocked_by_policy);
void OnIndexedDBAccessed(const GURL& url,
const string16& description,
bool blocked_by_policy);
void OnLocalStorageAccessed(const GURL& url,
bool local,
bool blocked_by_policy);
void OnWebDatabaseAccessed(const GURL& url,
const string16& name,
const string16& display_name,
bool blocked_by_policy);
void OnGeolocationPermissionSet(const GURL& requesting_frame,
bool allowed);
// Adds the given |SiteDataObserver|. The |observer| is notified when a
// locale shared object, like for example a cookie, is accessed.
void AddSiteDataObserver(SiteDataObserver* observer);
// Removes the given |SiteDataObserver|.
void RemoveSiteDataObserver(SiteDataObserver* observer);
private:
void AddBlockedResource(ContentSettingsType content_type,
const std::string& resource_identifier);
void OnContentAccessed(ContentSettingsType type);
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Notifies all registered |SiteDataObserver|s.
void NotifySiteDataObservers();
// All currently registered |SiteDataObserver|.
ObserverList<SiteDataObserver, true> observer_list_;
// Stores which content setting types actually have blocked content.
bool content_blocked_[CONTENT_SETTINGS_NUM_TYPES];
// Stores if the blocked content was messaged to the user.
bool content_blockage_indicated_to_user_[CONTENT_SETTINGS_NUM_TYPES];
// Stores which content setting types actually were accessed.
bool content_accessed_[CONTENT_SETTINGS_NUM_TYPES];
// Stores the blocked resources for each content type.
// Currently only used for plugins.
scoped_ptr<std::set<std::string> >
blocked_resources_[CONTENT_SETTINGS_NUM_TYPES];
// The profile of the tab.
Profile* profile_;
// Stores the blocked/allowed cookies.
LocalSharedObjectsContainer allowed_local_shared_objects_;
LocalSharedObjectsContainer blocked_local_shared_objects_;
// Manages information about Geolocation API usage in this page.
GeolocationSettingsState geolocation_settings_state_;
// Stores whether the user can load blocked plugins on this page.
bool load_plugins_link_enabled_;
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(TabSpecificContentSettings);
};
#endif // CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
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