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.
5 #include "chrome/browser/extensions/active_tab_permission_granter.h"
7 #include "chrome/browser/chrome_notification_types.h"
8 #include "chrome/browser/extensions/extension_service.h"
9 #include "chrome/browser/profiles/profile.h"
10 #include "chrome/browser/sessions/session_id.h"
11 #include "content/public/browser/navigation_details.h"
12 #include "content/public/browser/navigation_entry.h"
13 #include "content/public/browser/notification_service.h"
14 #include "content/public/browser/notification_source.h"
15 #include "content/public/browser/render_process_host.h"
16 #include "content/public/browser/web_contents.h"
17 #include "extensions/browser/extension_system.h"
18 #include "extensions/common/extension.h"
19 #include "extensions/common/extension_messages.h"
20 #include "extensions/common/permissions/permission_set.h"
21 #include "extensions/common/permissions/permissions_data.h"
22 #include "extensions/common/user_script.h"
24 using content::RenderProcessHost
;
25 using content::WebContentsObserver
;
27 namespace extensions
{
29 ActiveTabPermissionGranter::ActiveTabPermissionGranter(
30 content::WebContents
* web_contents
, int tab_id
, Profile
* profile
)
31 : WebContentsObserver(web_contents
), tab_id_(tab_id
) {
33 chrome::NOTIFICATION_EXTENSION_UNLOADED
,
34 content::Source
<Profile
>(profile
));
37 ActiveTabPermissionGranter::~ActiveTabPermissionGranter() {}
39 void ActiveTabPermissionGranter::GrantIfRequested(const Extension
* extension
) {
40 if (granted_extensions_
.Contains(extension
->id()))
43 APIPermissionSet new_apis
;
44 URLPatternSet new_hosts
;
46 if (extension
->HasAPIPermission(APIPermission::kActiveTab
)) {
47 URLPattern
pattern(UserScript::ValidUserScriptSchemes());
48 // Pattern parsing could fail if this is an unsupported URL e.g. chrome://.
49 if (pattern
.Parse(web_contents()->GetURL().spec()) ==
50 URLPattern::PARSE_SUCCESS
) {
51 new_hosts
.AddPattern(pattern
);
53 new_apis
.insert(APIPermission::kTab
);
56 if (extension
->HasAPIPermission(APIPermission::kTabCapture
))
57 new_apis
.insert(APIPermission::kTabCaptureForTab
);
59 if (!new_apis
.empty() || !new_hosts
.is_empty()) {
60 granted_extensions_
.Insert(extension
);
61 scoped_refptr
<const PermissionSet
> new_permissions
=
62 new PermissionSet(new_apis
, ManifestPermissionSet(),
63 new_hosts
, URLPatternSet());
64 PermissionsData::UpdateTabSpecificPermissions(extension
,
67 const content::NavigationEntry
* navigation_entry
=
68 web_contents()->GetController().GetVisibleEntry();
69 if (navigation_entry
) {
70 Send(new ExtensionMsg_UpdateTabSpecificPermissions(
71 navigation_entry
->GetPageID(),
79 void ActiveTabPermissionGranter::DidNavigateMainFrame(
80 const content::LoadCommittedDetails
& details
,
81 const content::FrameNavigateParams
& params
) {
82 if (details
.is_in_page
)
84 DCHECK(details
.is_main_frame
); // important: sub-frames don't get granted!
85 ClearActiveExtensionsAndNotify();
88 void ActiveTabPermissionGranter::WebContentsDestroyed(
89 content::WebContents
* web_contents
) {
90 ClearActiveExtensionsAndNotify();
93 void ActiveTabPermissionGranter::Observe(
95 const content::NotificationSource
& source
,
96 const content::NotificationDetails
& details
) {
97 DCHECK_EQ(type
, chrome::NOTIFICATION_EXTENSION_UNLOADED
);
98 const Extension
* extension
=
99 content::Details
<UnloadedExtensionInfo
>(details
)->extension
;
100 // Note: don't need to clear the permissions (nor tell the renderer about it)
101 // because it's being unloaded anyway.
102 granted_extensions_
.Remove(extension
->id());
105 void ActiveTabPermissionGranter::ClearActiveExtensionsAndNotify() {
106 if (granted_extensions_
.is_empty())
109 std::vector
<std::string
> extension_ids
;
111 for (ExtensionSet::const_iterator it
= granted_extensions_
.begin();
112 it
!= granted_extensions_
.end(); ++it
) {
113 PermissionsData::ClearTabSpecificPermissions(it
->get(), tab_id_
);
114 extension_ids
.push_back((*it
)->id());
117 Send(new ExtensionMsg_ClearTabSpecificPermissions(tab_id_
, extension_ids
));
118 granted_extensions_
.Clear();
121 } // namespace extensions