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
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/permissions/contexts/midi_permission_context.h"
#include "components/content_settings/browser/page_specific_content_settings.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "components/permissions/features.h"
#include "components/permissions/permission_request_id.h"
#include "components/permissions/permissions_client.h"
#include "content/public/browser/child_process_security_policy.h"
#include "third_party/blink/public/mojom/permissions_policy/permissions_policy_feature.mojom.h"
#include "url/gurl.h"
namespace permissions {
MidiPermissionContext::MidiPermissionContext(
content::BrowserContext* browser_context)
: PermissionContextBase(
browser_context,
ContentSettingsType::MIDI,
blink::mojom::PermissionsPolicyFeature::kMidiFeature),
host_content_settings_map_(
permissions::PermissionsClient::Get()->GetSettingsMap(
browser_context)) {
if (base::FeatureList::IsEnabled(
permissions::features::kBlockMidiByDefault)) {
content_setting_observer_registered_by_subclass_ = true;
host_content_settings_map_->AddObserver(this);
}
}
MidiPermissionContext::~MidiPermissionContext() {
if (base::FeatureList::IsEnabled(
permissions::features::kBlockMidiByDefault)) {
host_content_settings_map_->RemoveObserver(this);
}
}
ContentSetting MidiPermissionContext::GetPermissionStatusInternal(
content::RenderFrameHost* render_frame_host,
const GURL& requesting_origin,
const GURL& embedding_origin) const {
if (base::FeatureList::IsEnabled(features::kBlockMidiByDefault)) {
return PermissionContextBase::GetPermissionStatusInternal(
render_frame_host, requesting_origin, embedding_origin);
}
return CONTENT_SETTING_ALLOW;
}
void MidiPermissionContext::OnContentSettingChanged(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsTypeSet content_type_set) {
PermissionContextBase::OnContentSettingChanged(
primary_pattern, secondary_pattern, content_type_set);
// Synchronize the MIDI SysEx permission
if (base::FeatureList::IsEnabled(
permissions::features::kBlockMidiByDefault)) {
if (content_type_set.Contains(ContentSettingsType::MIDI)) {
// TODO(crbug.com/1078272): We should not need to deduce the url from
// the primary pattern here. Modify the infrastructure to facilitate
// this particular use case better.
const GURL url(primary_pattern.ToString());
if (!url::Origin::Create(url).opaque()) {
const ContentSetting midi_setting =
host_content_settings_map_->GetContentSetting(
url, url, ContentSettingsType::MIDI);
const ContentSetting midi_sysex_setting =
host_content_settings_map_->GetContentSetting(
url, url, ContentSettingsType::MIDI_SYSEX);
switch (midi_setting) {
case CONTENT_SETTING_BLOCK:
if (midi_sysex_setting != CONTENT_SETTING_BLOCK) {
host_content_settings_map_->SetContentSettingCustomScope(
primary_pattern, secondary_pattern,
ContentSettingsType::MIDI_SYSEX, CONTENT_SETTING_BLOCK);
}
break;
case CONTENT_SETTING_ASK:
if (midi_sysex_setting != CONTENT_SETTING_ASK) {
host_content_settings_map_->SetContentSettingCustomScope(
primary_pattern, secondary_pattern,
ContentSettingsType::MIDI_SYSEX, CONTENT_SETTING_ASK);
}
break;
case CONTENT_SETTING_ALLOW:
if (midi_sysex_setting != CONTENT_SETTING_ASK &&
midi_sysex_setting != CONTENT_SETTING_ALLOW) {
host_content_settings_map_->SetContentSettingCustomScope(
primary_pattern, secondary_pattern,
ContentSettingsType::MIDI_SYSEX, CONTENT_SETTING_ASK);
}
break;
default:
break;
}
}
}
}
}
void MidiPermissionContext::UpdateTabContext(const PermissionRequestID& id,
const GURL& requesting_frame,
bool allowed) {
if (base::FeatureList::IsEnabled(
permissions::features::kBlockMidiByDefault)) {
content_settings::PageSpecificContentSettings* content_settings =
content_settings::PageSpecificContentSettings::GetForFrame(
id.global_render_frame_host_id());
if (!content_settings) {
return;
}
if (allowed) {
content_settings->OnContentAllowed(ContentSettingsType::MIDI);
content::ChildProcessSecurityPolicy::GetInstance()->GrantSendMidiMessage(
id.global_render_frame_host_id().child_id);
} else {
content_settings->OnContentBlocked(ContentSettingsType::MIDI);
}
}
}
} // namespace permissions
|
