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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
// Copyright 2022 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/device_signals/test/signals_contract.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/test/bind.h"
#include "build/build_config.h"
#include "components/device_signals/core/browser/signals_types.h"
#include "components/device_signals/core/common/signals_constants.h"
namespace device_signals::test {
namespace {
// Only return false if the value is set to something other than a string.
bool VerifyOptionalString(const std::string& signal_name,
const base::Value::Dict& signals) {
if (!signals.Find(signal_name)) {
return true;
}
return signals.FindString(signal_name);
}
bool VerifyIsString(const std::string& signal_name,
const base::Value::Dict& signals) {
return signals.FindString(signal_name);
}
bool VerifyIsBoolean(const std::string& signal_name,
const base::Value::Dict& signals) {
return signals.FindBool(signal_name).has_value();
}
// `min_value` and `max_value` are inclusive.
bool VerifyIsIntegerWithRange(const std::string& signal_name,
int32_t min_value,
int32_t max_value,
const base::Value::Dict& signals) {
auto int_value = signals.FindInt(signal_name);
if (!int_value) {
return false;
}
return int_value >= min_value && int_value <= max_value;
}
bool VerifyIsSettingInteger(const std::string& signal_name,
const base::Value::Dict& signals) {
// Verify the value is in the valid enum values range.
// Enum defined at:
// //components/device_signals/core/common/common_types.h
return VerifyIsIntegerWithRange(signal_name, 0, 2, signals);
}
// `enforce_value` can be set to true when we definitely expect a value to be
// set in the array.
bool VerifyIsStringArray(const std::string& signal_name,
bool enforce_value,
const base::Value::Dict& signals) {
const auto* list_value = signals.FindList(signal_name);
if (!list_value) {
return false;
}
if (list_value->empty()) {
return !enforce_value;
}
for (const auto& value : *list_value) {
if (!value.is_string()) {
return false;
}
}
return true;
}
bool VerifyUnset(const std::string& signal_name,
const base::Value::Dict& signals) {
return !signals.Find(signal_name);
}
#if BUILDFLAG(IS_CHROMEOS)
void ChangeContractForUnmanagedDevices(
base::flat_map<std::string,
base::RepeatingCallback<bool(const base::Value::Dict&)>>&
contract) {
contract[names::kDeviceAffiliationIds] =
base::BindRepeating(VerifyIsStringArray, names::kDeviceAffiliationIds,
/*enforce_value=*/false);
// Signals containing stable device identifiers should be unset.
contract[names::kDisplayName] =
base::BindRepeating(VerifyUnset, names::kDisplayName);
contract[names::kSystemDnsServers] = base::BindRepeating(
base::BindRepeating(VerifyUnset, names::kSystemDnsServers));
contract[names::kSerialNumber] =
base::BindRepeating(VerifyUnset, names::kSerialNumber);
contract[names::kDeviceHostName] =
base::BindRepeating(VerifyUnset, names::kDeviceHostName);
contract[names::kMacAddresses] =
base::BindRepeating(VerifyUnset, names::kMacAddresses);
contract[names::kImei] = base::BindRepeating(VerifyUnset, names::kImei);
contract[names::kMeid] = base::BindRepeating(VerifyUnset, names::kMeid);
}
#endif // BUILDFLAG(IS_CHROMEOS)
} // namespace
base::flat_map<std::string,
base::RepeatingCallback<bool(const base::Value::Dict&)>>
GetSignalsContract(bool is_av_signal_enabled) {
base::flat_map<std::string,
base::RepeatingCallback<bool(const base::Value::Dict&)>>
contract;
// Common signals.
contract[names::kOs] = base::BindRepeating(VerifyIsString, names::kOs);
contract[names::kOsVersion] =
base::BindRepeating(VerifyIsString, names::kOsVersion);
contract[names::kDisplayName] =
base::BindRepeating(VerifyIsString, names::kDisplayName);
contract[names::kBrowserVersion] =
base::BindRepeating(VerifyIsString, names::kBrowserVersion);
contract[names::kDeviceModel] =
base::BindRepeating(VerifyIsString, names::kDeviceModel);
contract[names::kDeviceManufacturer] =
base::BindRepeating(VerifyIsString, names::kDeviceManufacturer);
contract[names::kDeviceAffiliationIds] =
base::BindRepeating(VerifyIsStringArray, names::kDeviceAffiliationIds,
/*enforce_value=*/true);
contract[names::kProfileAffiliationIds] =
base::BindRepeating(VerifyIsStringArray, names::kProfileAffiliationIds,
/*enforce_value=*/true);
contract[names::kRealtimeUrlCheckMode] = base::BindRepeating(
VerifyIsIntegerWithRange, names::kRealtimeUrlCheckMode, 0, 1);
contract[names::kSafeBrowsingProtectionLevel] = base::BindRepeating(
VerifyIsIntegerWithRange, names::kSafeBrowsingProtectionLevel, 0, 2);
contract[names::kSiteIsolationEnabled] =
base::BindRepeating(VerifyIsBoolean, names::kSiteIsolationEnabled);
contract[names::kPasswordProtectionWarningTrigger] = base::BindRepeating(
VerifyIsIntegerWithRange, names::kPasswordProtectionWarningTrigger, 0, 3);
contract[names::kChromeRemoteDesktopAppBlocked] = base::BindRepeating(
VerifyIsBoolean, names::kChromeRemoteDesktopAppBlocked);
contract[names::kBuiltInDnsClientEnabled] =
base::BindRepeating(VerifyIsBoolean, names::kBuiltInDnsClientEnabled);
contract[names::kOsFirewall] =
base::BindRepeating(VerifyIsSettingInteger, names::kOsFirewall);
contract[names::kSystemDnsServers] = base::BindRepeating(
VerifyIsStringArray, names::kSystemDnsServers, /*enforce_value=*/false);
// Signals added for both CrOS and Browser but from different collection
// locations.
contract[names::kDeviceEnrollmentDomain] =
base::BindRepeating(VerifyOptionalString, names::kDeviceEnrollmentDomain);
contract[names::kUserEnrollmentDomain] =
base::BindRepeating(VerifyOptionalString, names::kUserEnrollmentDomain);
contract[names::kDiskEncrypted] =
base::BindRepeating(VerifyIsSettingInteger, names::kDiskEncrypted);
contract[names::kSerialNumber] =
base::BindRepeating(VerifyIsString, names::kSerialNumber);
contract[names::kDeviceHostName] =
base::BindRepeating(VerifyIsString, names::kDeviceHostName);
contract[names::kMacAddresses] = base::BindRepeating(
VerifyIsStringArray, names::kMacAddresses, /*enforce_value=*/false);
contract[names::kScreenLockSecured] =
base::BindRepeating(VerifyIsSettingInteger, names::kScreenLockSecured);
#if BUILDFLAG(IS_WIN)
if (is_av_signal_enabled) {
contract[names::kAntivirusState] =
base::BindRepeating(VerifyIsSettingInteger, names::kAntivirusState);
} else {
contract[names::kAntivirusState] =
base::BindRepeating(VerifyUnset, names::kAntivirusState);
}
contract[names::kWindowsMachineDomain] =
base::BindRepeating(VerifyOptionalString, names::kWindowsMachineDomain);
contract[names::kWindowsUserDomain] =
base::BindRepeating(VerifyOptionalString, names::kWindowsUserDomain);
contract[names::kSecureBootEnabled] =
base::BindRepeating(VerifyIsSettingInteger, names::kSecureBootEnabled);
contract[names::kCrowdStrike] =
base::BindLambdaForTesting([](const base::Value::Dict& signals) {
// CrowdStrike signals are optional. But if the object is set, then at
// least one of the values must be present.
auto* cs_value = signals.Find(device_signals::names::kCrowdStrike);
if (!cs_value) {
return true;
}
if (!cs_value->is_dict()) {
return false;
}
const auto& cs_dict = cs_value->GetDict();
auto* customer_id =
cs_dict.FindString(device_signals::names::kCustomerId);
auto* agent_id = cs_dict.FindString(device_signals::names::kAgentId);
return (customer_id && !customer_id->empty()) ||
(agent_id && !agent_id->empty());
});
#else
// Windows-only signals that shouldn't be set on other platforms.
contract[names::kAntivirusState] =
base::BindRepeating(VerifyUnset, names::kAntivirusState);
contract[names::kWindowsMachineDomain] =
base::BindRepeating(VerifyUnset, names::kWindowsMachineDomain);
contract[names::kWindowsUserDomain] =
base::BindRepeating(VerifyUnset, names::kWindowsUserDomain);
contract[names::kSecureBootEnabled] =
base::BindRepeating(VerifyUnset, names::kSecureBootEnabled);
contract[names::kCrowdStrike] =
base::BindRepeating(VerifyUnset, names::kCrowdStrike);
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
contract[names::kAllowScreenLock] =
base::BindRepeating(VerifyUnset, names::kAllowScreenLock);
contract[names::kImei] = base::BindRepeating(VerifyUnset, names::kImei);
contract[names::kMeid] = base::BindRepeating(VerifyUnset, names::kMeid);
contract[names::kTrigger] =
base::BindLambdaForTesting([](const base::Value::Dict& signals) {
return signals.FindInt(names::kTrigger) ==
static_cast<int>(device_signals::Trigger::kBrowserNavigation);
});
#else
// Chrome OS Signals.
contract[names::kAllowScreenLock] =
base::BindRepeating(VerifyIsBoolean, names::kAllowScreenLock);
contract[names::kImei] = base::BindRepeating(
VerifyIsStringArray, names::kImei, /*enforce_value=*/false);
contract[names::kMeid] = base::BindRepeating(
VerifyIsStringArray, names::kMeid, /*enforce_value=*/false);
contract[names::kTrigger] =
base::BindRepeating(VerifyIsIntegerWithRange, names::kTrigger, 0, 2);
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
return contract;
}
#if BUILDFLAG(IS_CHROMEOS)
base::flat_map<std::string,
base::RepeatingCallback<bool(const base::Value::Dict&)>>
GetSignalsContractForUnmanagedDevices(bool is_av_signal_enabled) {
base::flat_map<std::string,
base::RepeatingCallback<bool(const base::Value::Dict&)>>
contract = GetSignalsContract(is_av_signal_enabled);
ChangeContractForUnmanagedDevices(contract);
return contract;
}
#endif // BUILDFLAG(IS_CHROMEOS)
} // namespace device_signals::test
|
