Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / chrome / renderer / content_settings_observer.h
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CHROME_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
6 #define CHROME_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
7
8 #include <map>
9 #include <set>
10
11 #include "components/content_settings/core/common/content_settings.h"
12 #include "components/content_settings/core/common/content_settings_types.h"
13 #include "content/public/renderer/render_frame_observer.h"
14 #include "content/public/renderer/render_frame_observer_tracker.h"
15 #include "third_party/WebKit/public/web/WebPermissionClient.h"
16
17 class GURL;
18
19 namespace blink {
20 class WebFrame;
21 class WebSecurityOrigin;
22 class WebURL;
23 }
24
25 namespace extensions {
26 class Dispatcher;
27 class Extension;
28 }
29
30 // Handles blocking content per content settings for each RenderFrame.
31 class ContentSettingsObserver
32     : public content::RenderFrameObserver,
33       public content::RenderFrameObserverTracker<ContentSettingsObserver>,
34       public blink::WebPermissionClient {
35  public:
36   ContentSettingsObserver(content::RenderFrame* render_frame,
37                           extensions::Dispatcher* extension_dispatcher);
38   ~ContentSettingsObserver() override;
39
40   // Sets the content setting rules which back |AllowImage()|, |AllowScript()|,
41   // and |AllowScriptFromSource()|. |content_setting_rules| must outlive this
42   // |ContentSettingsObserver|.
43   void SetContentSettingRules(
44       const RendererContentSettingRules* content_setting_rules);
45
46   bool IsPluginTemporarilyAllowed(const std::string& identifier);
47
48   // Sends an IPC notification that the specified content type was blocked.
49   void DidBlockContentType(ContentSettingsType settings_type);
50
51   // blink::WebPermissionClient implementation.
52   virtual bool allowDatabase(const blink::WebString& name,
53                              const blink::WebString& display_name,
54                              unsigned long estimated_size) override;
55   virtual void requestFileSystemAccessAsync(
56       const blink::WebPermissionCallbacks& callbacks) override;
57   virtual bool allowImage(bool enabled_per_settings,
58                           const blink::WebURL& image_url) override;
59   virtual bool allowIndexedDB(const blink::WebString& name,
60                               const blink::WebSecurityOrigin& origin) override;
61   virtual bool allowPlugins(bool enabled_per_settings) override;
62   virtual bool allowScript(bool enabled_per_settings) override;
63   virtual bool allowScriptFromSource(bool enabled_per_settings,
64                                      const blink::WebURL& script_url) override;
65   virtual bool allowStorage(bool local) override;
66   virtual bool allowReadFromClipboard(bool default_value) override;
67   virtual bool allowWriteToClipboard(bool default_value) override;
68   virtual bool allowMutationEvents(bool default_value) override;
69   virtual bool allowPushState() override;
70   virtual void didNotAllowPlugins() override;
71   virtual void didNotAllowScript() override;
72   virtual bool allowDisplayingInsecureContent(
73       bool allowed_per_settings,
74       const blink::WebSecurityOrigin& context,
75       const blink::WebURL& url) override;
76   virtual bool allowRunningInsecureContent(
77       bool allowed_per_settings,
78       const blink::WebSecurityOrigin& context,
79       const blink::WebURL& url) override;
80
81   // This is used for cases when the NPAPI plugins malfunction if used.
82   bool AreNPAPIPluginsBlocked() const;
83
84  private:
85   FRIEND_TEST_ALL_PREFIXES(ContentSettingsObserverTest, WhitelistedSchemes);
86   FRIEND_TEST_ALL_PREFIXES(ChromeRenderViewTest,
87                            ContentSettingsInterstitialPages);
88   FRIEND_TEST_ALL_PREFIXES(ChromeRenderViewTest, PluginsTemporarilyAllowed);
89
90   // RenderFrameObserver implementation.
91   bool OnMessageReceived(const IPC::Message& message) override;
92   void DidCommitProvisionalLoad(bool is_new_navigation) override;
93
94   // Message handlers.
95   void OnLoadBlockedPlugins(const std::string& identifier);
96   void OnSetAsInterstitial();
97   void OnNPAPINotSupported();
98   void OnSetAllowDisplayingInsecureContent(bool allow);
99   void OnSetAllowRunningInsecureContent(bool allow);
100   void OnReloadFrame();
101   void OnRequestFileSystemAccessAsyncResponse(int request_id, bool allowed);
102
103   // Resets the |content_blocked_| array.
104   void ClearBlockedContentSettings();
105
106   // Whether the observed RenderFrame is for a platform app.
107   bool IsPlatformApp();
108
109 #if defined(ENABLE_EXTENSIONS)
110   // If |origin| corresponds to an installed extension, returns that extension.
111   // Otherwise returns NULL.
112   const extensions::Extension* GetExtension(
113       const blink::WebSecurityOrigin& origin) const;
114 #endif
115
116   // Helpers.
117   // True if |frame| contains content that is white-listed for content settings.
118   static bool IsWhitelistedForContentSettings(content::RenderFrame* frame);
119   static bool IsWhitelistedForContentSettings(
120       const blink::WebSecurityOrigin& origin,
121       const GURL& document_url);
122
123 #if defined(ENABLE_EXTENSIONS)
124   // Owned by ChromeContentRendererClient and outlive us.
125   extensions::Dispatcher* extension_dispatcher_;
126 #endif
127
128   // Insecure content may be permitted for the duration of this render view.
129   bool allow_displaying_insecure_content_;
130   bool allow_running_insecure_content_;
131
132   // A pointer to content setting rules stored by the renderer. Normally, the
133   // |RendererContentSettingRules| object is owned by
134   // |ChromeRenderProcessObserver|. In the tests it is owned by the caller of
135   // |SetContentSettingRules|.
136   const RendererContentSettingRules* content_setting_rules_;
137
138   // Stores if images, scripts, and plugins have actually been blocked.
139   bool content_blocked_[CONTENT_SETTINGS_NUM_TYPES];
140
141   // Caches the result of AllowStorage.
142   typedef std::pair<GURL, bool> StoragePermissionsKey;
143   std::map<StoragePermissionsKey, bool> cached_storage_permissions_;
144
145   // Caches the result of |AllowScript|.
146   std::map<blink::WebFrame*, bool> cached_script_permissions_;
147
148   std::set<std::string> temporarily_allowed_plugins_;
149   bool is_interstitial_page_;
150   bool npapi_plugins_blocked_;
151
152   int current_request_id_;
153   typedef std::map<int, blink::WebPermissionCallbacks> PermissionRequestMap;
154   PermissionRequestMap permission_requests_;
155
156   DISALLOW_COPY_AND_ASSIGN(ContentSettingsObserver);
157 };
158
159 #endif  // CHROME_RENDERER_CONTENT_SETTINGS_OBSERVER_H_