1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
// Copyright 2013 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/media/protected_media_identifier_permission_context.h"
#include <functional>
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/prefs/pref_service.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/content_settings/host_content_settings_map.h"
#include "chrome/browser/content_settings/tab_specific_content_settings.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/common/pref_names.h"
#include "components/content_settings/core/common/permission_request_id.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#if defined(ENABLE_EXTENSIONS)
#include "chrome/browser/extensions/extension_service.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/suggest_permission_util.h"
#include "extensions/browser/view_type_utils.h"
#include "extensions/common/extension.h"
using extensions::APIPermission;
#endif
ProtectedMediaIdentifierPermissionContext::
ProtectedMediaIdentifierPermissionContext(Profile* profile)
: profile_(profile), shutting_down_(false) {}
ProtectedMediaIdentifierPermissionContext::
~ProtectedMediaIdentifierPermissionContext() {
// ProtectedMediaIdentifierPermissionContext may be destroyed on either
// the UI thread or the IO thread, but the PermissionQueueController must have
// been destroyed on the UI thread.
DCHECK(!permission_queue_controller_.get());
}
void ProtectedMediaIdentifierPermissionContext::
RequestProtectedMediaIdentifierPermission(
content::WebContents* web_contents,
const GURL& origin,
base::Callback<void(bool)> result_callback,
base::Closure* cancel_callback) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (shutting_down_)
return;
int render_process_id = web_contents->GetRenderProcessHost()->GetID();
int render_view_id = web_contents->GetRenderViewHost()->GetRoutingID();
if (cancel_callback) {
*cancel_callback = base::Bind(
&ProtectedMediaIdentifierPermissionContext::
CancelProtectedMediaIdentifierPermissionRequests,
this, render_process_id, render_view_id, origin);
}
const PermissionRequestID id(
render_process_id, render_view_id, 0, origin);
#if defined(ENABLE_EXTENSIONS)
if (extensions::GetViewType(web_contents) !=
extensions::VIEW_TYPE_TAB_CONTENTS) {
// The tab may have gone away, or the request may not be from a tab at all.
LOG(WARNING)
<< "Attempt to use protected media identifier in tabless renderer: "
<< id.ToString()
<< " (can't prompt user without a visible tab)";
NotifyPermissionSet(id, origin, result_callback, false);
return;
}
#endif
GURL embedder = web_contents->GetLastCommittedURL();
if (!origin.is_valid() || !embedder.is_valid()) {
LOG(WARNING)
<< "Attempt to use protected media identifier from an invalid URL: "
<< origin << "," << embedder
<< " (proteced media identifier is not supported in popups)";
NotifyPermissionSet(id, origin, result_callback, false);
return;
}
content::RenderViewHost* rvh = web_contents->GetRenderViewHost();
DecidePermission(id, origin, embedder, rvh, result_callback);
}
void ProtectedMediaIdentifierPermissionContext::
CancelProtectedMediaIdentifierPermissionRequests(
int render_process_id,
int render_view_id,
const GURL& origin) {
CancelPendingInfobarRequests(
render_process_id, render_view_id, origin);
}
void ProtectedMediaIdentifierPermissionContext::DecidePermission(
const PermissionRequestID& id,
const GURL& origin,
const GURL& embedder,
content::RenderViewHost* rvh,
const base::Callback<void(bool)>& callback) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
#if defined(OS_ANDROID)
// Check if the protected media identifier master switch is disabled.
if (!profile()->GetPrefs()->GetBoolean(
prefs::kProtectedMediaIdentifierEnabled)) {
PermissionDecided(id, origin, embedder, callback, false);
return;
}
#endif
ContentSetting content_setting =
profile_->GetHostContentSettingsMap()->GetContentSetting(
origin,
embedder,
CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER,
std::string());
switch (content_setting) {
case CONTENT_SETTING_BLOCK:
PermissionDecided(id, origin, embedder, callback, false);
break;
case CONTENT_SETTING_ALLOW:
PermissionDecided(id, origin, embedder, callback, true);
break;
case CONTENT_SETTING_ASK:
QueueController()->CreateInfoBarRequest(
id,
origin,
embedder,
base::Bind(&ProtectedMediaIdentifierPermissionContext::
NotifyPermissionSet,
base::Unretained(this),
id,
origin,
callback));
break;
default:
NOTREACHED();
}
}
void ProtectedMediaIdentifierPermissionContext::ShutdownOnUIThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
permission_queue_controller_.reset();
shutting_down_ = true;
}
void ProtectedMediaIdentifierPermissionContext::PermissionDecided(
const PermissionRequestID& id,
const GURL& origin,
const GURL& embedder,
const base::Callback<void(bool)>& callback,
bool allowed) {
NotifyPermissionSet(id, origin, callback, allowed);
}
void ProtectedMediaIdentifierPermissionContext::NotifyPermissionSet(
const PermissionRequestID& id,
const GURL& origin,
const base::Callback<void(bool)>& callback,
bool allowed) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
// WebContents may have gone away.
TabSpecificContentSettings* content_settings =
TabSpecificContentSettings::Get(id.render_process_id(),
id.render_view_id());
if (content_settings) {
content_settings->OnProtectedMediaIdentifierPermissionSet(
origin.GetOrigin(), allowed);
}
callback.Run(allowed);
}
PermissionQueueController*
ProtectedMediaIdentifierPermissionContext::QueueController() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
DCHECK(!shutting_down_);
if (!permission_queue_controller_)
permission_queue_controller_.reset(CreateQueueController());
return permission_queue_controller_.get();
}
PermissionQueueController*
ProtectedMediaIdentifierPermissionContext::CreateQueueController() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
return new PermissionQueueController(
profile(), CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER);
}
void
ProtectedMediaIdentifierPermissionContext::CancelPendingInfobarRequests(
int render_process_id,
int render_view_id,
const GURL& origin) {
if (!content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)) {
content::BrowserThread::PostTask(
content::BrowserThread::UI,
FROM_HERE,
base::Bind(&ProtectedMediaIdentifierPermissionContext::
CancelPendingInfobarRequests,
this,
render_process_id,
render_view_id,
origin));
return;
}
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (shutting_down_)
return;
QueueController()->CancelInfoBarRequest(
PermissionRequestID(render_process_id, render_view_id, 0,
origin));
}
|
