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
|
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/media_permission_dispatcher.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/notreached.h"
#include "base/task/bind_post_task.h"
#include "base/task/single_thread_task_runner.h"
#include "base/types/cxx23_to_underlying.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "url/gurl.h"
#if BUILDFLAG(IS_WIN)
#include "base/functional/callback_forward.h"
#endif // BUILDFLAG(IS_WIN)
namespace {
using Type = media::MediaPermission::Type;
blink::mojom::PermissionDescriptorPtr MediaPermissionTypeToPermissionDescriptor(
Type type) {
auto descriptor = blink::mojom::PermissionDescriptor::New();
switch (type) {
case Type::kProtectedMediaIdentifier:
descriptor->name =
blink::mojom::PermissionName::PROTECTED_MEDIA_IDENTIFIER;
break;
case Type::kAudioCapture:
descriptor->name = blink::mojom::PermissionName::AUDIO_CAPTURE;
break;
case Type::kVideoCapture:
descriptor->name = blink::mojom::PermissionName::VIDEO_CAPTURE;
break;
default:
NOTREACHED() << base::to_underlying(type);
}
return descriptor;
}
} // namespace
namespace content {
MediaPermissionDispatcher::MediaPermissionDispatcher(
RenderFrameImpl* render_frame)
: task_runner_(base::SingleThreadTaskRunner::GetCurrentDefault()),
next_request_id_(0),
render_frame_(render_frame) {
DCHECK(render_frame_);
weak_ptr_ = weak_factory_.GetWeakPtr();
}
MediaPermissionDispatcher::~MediaPermissionDispatcher() {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
// Clean up pending requests.
OnPermissionServiceConnectionError();
}
void MediaPermissionDispatcher::OnNavigation() {
// Behave as if there were a connection error. The browser process will be
// closing the connection imminently.
OnPermissionServiceConnectionError();
}
void MediaPermissionDispatcher::HasPermission(
Type type,
PermissionStatusCB permission_status_cb) {
if (!task_runner_->RunsTasksInCurrentSequence()) {
task_runner_->PostTask(
FROM_HERE, base::BindOnce(&MediaPermissionDispatcher::HasPermission,
weak_ptr_, type,
base::BindPostTaskToCurrentDefault(
std::move(permission_status_cb))));
return;
}
DCHECK(task_runner_->RunsTasksInCurrentSequence());
int request_id = RegisterCallback(std::move(permission_status_cb));
DVLOG(2) << __func__ << ": request ID " << request_id;
GetPermissionService()->HasPermission(
MediaPermissionTypeToPermissionDescriptor(type),
base::BindOnce(&MediaPermissionDispatcher::OnPermissionStatus, weak_ptr_,
request_id));
}
void MediaPermissionDispatcher::RequestPermission(
Type type,
PermissionStatusCB permission_status_cb) {
if (!task_runner_->RunsTasksInCurrentSequence()) {
task_runner_->PostTask(
FROM_HERE, base::BindOnce(&MediaPermissionDispatcher::RequestPermission,
weak_ptr_, type,
base::BindPostTaskToCurrentDefault(
std::move(permission_status_cb))));
return;
}
DCHECK(task_runner_->RunsTasksInCurrentSequence());
int request_id = RegisterCallback(std::move(permission_status_cb));
DVLOG(2) << __func__ << ": request ID " << request_id;
GetPermissionService()->RequestPermission(
MediaPermissionTypeToPermissionDescriptor(type),
render_frame_->GetWebFrame()->HasTransientUserActivation(),
base::BindOnce(&MediaPermissionDispatcher::OnPermissionStatus, weak_ptr_,
request_id));
}
bool MediaPermissionDispatcher::IsEncryptedMediaEnabled() {
return render_frame_->GetRendererPreferences().enable_encrypted_media;
}
uint32_t MediaPermissionDispatcher::RegisterCallback(
PermissionStatusCB permission_status_cb) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
uint32_t request_id = next_request_id_++;
DCHECK(!requests_.count(request_id));
requests_[request_id] = std::move(permission_status_cb);
return request_id;
}
blink::mojom::PermissionService*
MediaPermissionDispatcher::GetPermissionService() {
if (!permission_service_) {
render_frame_->GetBrowserInterfaceBroker().GetInterface(
permission_service_.BindNewPipeAndPassReceiver());
permission_service_.set_disconnect_handler(base::BindOnce(
&MediaPermissionDispatcher::OnPermissionServiceConnectionError,
base::Unretained(this)));
}
return permission_service_.get();
}
void MediaPermissionDispatcher::OnPermissionStatus(
uint32_t request_id,
blink::mojom::PermissionStatus status) {
DVLOG(2) << __func__ << ": (" << request_id << ", " << status << ")";
DCHECK(task_runner_->RunsTasksInCurrentSequence());
auto iter = requests_.find(request_id);
CHECK(iter != requests_.end());
PermissionStatusCB permission_status_cb = std::move(iter->second);
requests_.erase(iter);
std::move(permission_status_cb)
.Run(status == blink::mojom::PermissionStatus::GRANTED);
}
#if BUILDFLAG(IS_WIN)
void MediaPermissionDispatcher::IsHardwareSecureDecryptionAllowed(
IsHardwareSecureDecryptionAllowedCB cb) {
GetMediaFoundationPreferences()->IsHardwareSecureDecryptionAllowed(
std::move(cb));
}
media::mojom::MediaFoundationPreferences*
MediaPermissionDispatcher::GetMediaFoundationPreferences() {
if (!mf_preferences_) {
render_frame_->GetBrowserInterfaceBroker().GetInterface(
mf_preferences_.BindNewPipeAndPassReceiver());
mf_preferences_.set_disconnect_handler(base::BindOnce(
&MediaPermissionDispatcher::OnMediaFoundationPreferencesConnectionError,
base::Unretained(this)));
}
return mf_preferences_.get();
}
void MediaPermissionDispatcher::OnMediaFoundationPreferencesConnectionError() {
mf_preferences_.reset();
}
#endif // BUILDFLAG(IS_WIN)
void MediaPermissionDispatcher::OnPermissionServiceConnectionError() {
permission_service_.reset();
// Fire all pending callbacks with |false|.
RequestMap requests;
requests.swap(requests_);
for (auto& request : requests)
std::move(request.second).Run(false);
}
} // namespace content
|
