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
|
// Copyright (c) 2010 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_frame/policy_settings.h"
#include <algorithm>
#include "base/logging.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "chrome_frame/utils.h"
#include "policy/policy_constants.h"
namespace {
// This array specifies the order in which registry keys are tested. Do not
// change this unless the decision is made product-wide (i.e., in Chrome's
// configuration policy provider).
const HKEY kRootKeys[] = {
HKEY_LOCAL_MACHINE,
HKEY_CURRENT_USER
};
} // namespace
PolicySettings::RendererForUrl PolicySettings::GetRendererForUrl(
const wchar_t* url) {
RendererForUrl renderer = default_renderer_;
std::vector<std::wstring>::const_iterator it;
for (it = renderer_exclusion_list_.begin();
it != renderer_exclusion_list_.end(); ++it) {
if (MatchPattern(url, (*it))) {
renderer = (renderer == RENDER_IN_HOST) ?
RENDER_IN_CHROME_FRAME : RENDER_IN_HOST;
break;
}
}
return renderer;
}
PolicySettings::RendererForUrl PolicySettings::GetRendererForContentType(
const wchar_t* content_type) {
DCHECK(content_type);
RendererForUrl renderer = RENDERER_NOT_SPECIFIED;
std::vector<std::wstring>::const_iterator it;
for (it = content_type_list_.begin();
it != content_type_list_.end(); ++it) {
if (lstrcmpiW(content_type, (*it).c_str()) == 0) {
renderer = RENDER_IN_CHROME_FRAME;
break;
}
}
return renderer;
}
// static
void PolicySettings::ReadUrlSettings(
RendererForUrl* default_renderer,
std::vector<std::wstring>* renderer_exclusion_list) {
DCHECK(default_renderer);
DCHECK(renderer_exclusion_list);
*default_renderer = RENDERER_NOT_SPECIFIED;
renderer_exclusion_list->clear();
base::win::RegKey config_key;
DWORD value = RENDERER_NOT_SPECIFIED;
std::wstring settings_value(
ASCIIToWide(policy::key::kChromeFrameRendererSettings));
for (int i = 0; i < arraysize(kRootKeys); ++i) {
if ((config_key.Open(kRootKeys[i], policy::kRegistrySubKey,
KEY_READ) == ERROR_SUCCESS) &&
(config_key.ReadValueDW(settings_value.c_str(),
&value) == ERROR_SUCCESS)) {
break;
}
}
DCHECK(value == RENDERER_NOT_SPECIFIED ||
value == RENDER_IN_HOST ||
value == RENDER_IN_CHROME_FRAME) <<
"invalid default renderer setting: " << value;
if (value != RENDER_IN_HOST && value != RENDER_IN_CHROME_FRAME) {
DVLOG(1) << "default renderer not specified via policy";
} else {
*default_renderer = static_cast<RendererForUrl>(value);
const char* exclusion_list_name = (*default_renderer == RENDER_IN_HOST) ?
policy::key::kRenderInChromeFrameList :
policy::key::kRenderInHostList;
EnumerateKeyValues(config_key.Handle(),
ASCIIToWide(exclusion_list_name).c_str(), renderer_exclusion_list);
DVLOG(1) << "Default renderer as specified via policy: "
<< *default_renderer
<< " exclusion list size: " << renderer_exclusion_list->size();
}
}
// static
void PolicySettings::ReadContentTypeSetting(
std::vector<std::wstring>* content_type_list) {
DCHECK(content_type_list);
std::wstring sub_key(policy::kRegistrySubKey);
sub_key += L"\\";
sub_key += ASCIIToWide(policy::key::kChromeFrameContentTypes);
content_type_list->clear();
for (int i = 0; i < arraysize(kRootKeys) && content_type_list->empty();
++i) {
EnumerateKeyValues(kRootKeys[i], sub_key.c_str(), content_type_list);
}
}
// static
void PolicySettings::ReadApplicationLocaleSetting(
std::wstring* application_locale) {
DCHECK(application_locale);
application_locale->clear();
base::win::RegKey config_key;
std::wstring application_locale_value(
ASCIIToWide(policy::key::kApplicationLocaleValue));
for (int i = 0; i < arraysize(kRootKeys); ++i) {
if ((config_key.Open(kRootKeys[i], policy::kRegistrySubKey,
KEY_READ) == ERROR_SUCCESS) &&
(config_key.ReadValue(application_locale_value.c_str(),
application_locale) == ERROR_SUCCESS)) {
break;
}
}
}
void PolicySettings::RefreshFromRegistry() {
RendererForUrl default_renderer;
std::vector<std::wstring> renderer_exclusion_list;
std::vector<std::wstring> content_type_list;
std::wstring application_locale;
// Read the latest settings from the registry
ReadUrlSettings(&default_renderer, &renderer_exclusion_list);
ReadContentTypeSetting(&content_type_list);
ReadApplicationLocaleSetting(&application_locale);
// Nofail swap in the new values. (Note: this is all that need be protected
// under a mutex if/when this becomes thread safe.)
using std::swap;
swap(default_renderer_, default_renderer);
swap(renderer_exclusion_list_, renderer_exclusion_list);
swap(content_type_list_, content_type_list);
swap(application_locale_, application_locale);
}
// static
PolicySettings* PolicySettings::GetInstance() {
return Singleton<PolicySettings>::get();
}
|
