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
|
// 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 "chrome/browser/ash/arc/policy/arc_policy_handler.h"
#include <optional>
#include <string>
#include <string_view>
#include "base/check.h"
#include "base/json/json_reader.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/ash/arc/policy/arc_policy_bridge.h"
#include "chrome/browser/ash/arc/policy/arc_policy_util.h"
#include "chrome/browser/ash/arc/policy/managed_configuration_variables.h"
#include "components/policy/core/browser/configuration_policy_handler.h"
#include "components/policy/policy_constants.h"
#include "components/strings/grit/components_strings.h"
#include "third_party/re2/src/re2/re2.h"
namespace arc {
namespace {
// Return the first unknown variable in |input|, or |nullopt| if no unknown
// variables exist.
std::optional<std::string_view> FindUnknownVariable(const std::string& input) {
const std::string variable_matcher = base::StringPrintf(
"%s|%s|%s|%s|%s|%s|%s", kUserEmail, kUserEmailName, kUserEmailDomain,
kDeviceDirectoryId, kDeviceSerialNumber, kDeviceAssetId,
kDeviceAnnotatedLocation);
const std::string unknown_variable_capture =
base::StringPrintf("\\$\\{(?:%s)(?::(?:%s))*\\}|(\\$\\{[^}]*?\\})",
variable_matcher.c_str(), variable_matcher.c_str());
const re2::RE2 regex(unknown_variable_capture);
DCHECK(regex.ok()) << "Error compiling regex: " << regex.error();
std::string_view capture;
const bool found_unknown_variable =
re2::RE2::PartialMatch(input, regex, &capture) &&
capture.data() != nullptr;
if (!found_unknown_variable)
return std::nullopt;
return capture;
}
// Add warning messages in |arc_policy| for invalid variables in
// |managed_configutation|.
void WarnInvalidVariablesInManagedConfiguration(
const std::string& application_package_name,
const base::Value::Dict& managed_configuration,
policy::PolicyMap::Entry* arc_policy) {
DCHECK(arc_policy);
for (const auto kv : managed_configuration) {
const base::Value& value = kv.second;
if (value.is_dict()) {
WarnInvalidVariablesInManagedConfiguration(application_package_name,
value.GetDict(), arc_policy);
continue;
}
if (!value.is_string())
continue;
std::optional<std::string_view> unknown_variable =
FindUnknownVariable(value.GetString());
if (!unknown_variable.has_value())
continue;
arc_policy->AddMessage(
policy::PolicyMap::MessageType::kWarning,
IDS_POLICY_UNKNOWN_ARC_MANAGED_CONFIGURATION_VARIABLE,
{
base::UTF8ToUTF16(unknown_variable.value()),
base::UTF8ToUTF16(application_package_name),
});
}
}
} // namespace
ArcPolicyHandler::ArcPolicyHandler()
: policy::TypeCheckingPolicyHandler(policy::key::kArcPolicy,
base::Value::Type::STRING) {}
void ArcPolicyHandler::PrepareForDisplaying(policy::PolicyMap* policies) const {
const base::Value* value =
policies->GetValue(policy_name(), base::Value::Type::STRING);
if (!value)
return;
std::optional<base::Value> json = base::JSONReader::Read(
value->GetString(), base::JSONParserOptions::JSON_ALLOW_TRAILING_COMMAS);
if (!json.has_value())
return;
const base::Value::Dict& arc_policy = json->GetDict();
const base::Value::List* apps =
arc_policy.FindList(policy_util::kArcPolicyKeyApplications);
if (!apps)
return;
for (const base::Value& app_value : *apps) {
if (!app_value.is_dict())
continue;
const base::Value::Dict& application = app_value.GetDict();
const base::Value::Dict* managed_configuration =
application.FindDict(ArcPolicyBridge::kManagedConfiguration);
if (!managed_configuration)
continue;
const std::string* package_name =
application.FindString(ArcPolicyBridge::kPackageName);
WarnInvalidVariablesInManagedConfiguration(
package_name ? *package_name : "", *managed_configuration,
policies->GetMutable(policy_name()));
}
}
void ArcPolicyHandler::ApplyPolicySettings(const policy::PolicyMap& policies,
PrefValueMap* prefs) {}
} // namespace arc
|
