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
|
// 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/updater/policy/policy_fetcher.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/logging.h"
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/time/default_clock.h"
#include "base/time/time.h"
#include "chrome/enterprise_companion/constants.h"
#include "chrome/enterprise_companion/device_management_storage/dm_storage.h"
#include "chrome/enterprise_companion/enterprise_companion_client.h"
#include "chrome/enterprise_companion/global_constants.h"
#include "chrome/enterprise_companion/mojom/enterprise_companion.mojom.h"
#include "chrome/updater/constants.h"
#include "chrome/updater/persisted_data.h"
#include "chrome/updater/policy/dm_policy_manager.h"
#include "chrome/updater/policy/manager.h"
#include "chrome/updater/updater_scope.h"
#include "chrome/updater/usage_stats_permissions.h"
#include "components/policy/core/common/policy_types.h"
#include "components/update_client/timed_callback.h"
#include "mojo/public/cpp/bindings/callback_helpers.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/isolated_connection.h"
namespace updater {
using PolicyFetchCompleteCallback =
base::OnceCallback<void(int, scoped_refptr<PolicyManagerInterface>)>;
// `OutOfProcessPolicyFetcher` launches the enterprise companion app and
// delegates the policy fetch tasks to it through Mojom.
class OutOfProcessPolicyFetcher : public PolicyFetcher {
public:
OutOfProcessPolicyFetcher(scoped_refptr<PersistedData> persisted_data,
std::optional<bool> override_is_managed_device,
base::TimeDelta connection_timeout);
// Overrides for `PolicyFetcher`.
void FetchPolicies(policy::PolicyFetchReason reason,
PolicyFetchCompleteCallback callback) override;
private:
~OutOfProcessPolicyFetcher() override;
void OnConnected(
policy::PolicyFetchReason reason,
std::unique_ptr<mojo::IsolatedConnection> connection,
mojo::Remote<enterprise_companion::mojom::EnterpriseCompanion> remote);
void OnPoliciesFetched(enterprise_companion::mojom::StatusPtr status);
SEQUENCE_CHECKER(sequence_checker_);
mojo::Remote<enterprise_companion::mojom::EnterpriseCompanion> remote_;
std::unique_ptr<mojo::IsolatedConnection> connection_;
PolicyFetchCompleteCallback fetch_complete_callback_;
scoped_refptr<PersistedData> persisted_data_;
const std::optional<bool> override_is_managed_device_;
const base::TimeDelta connection_timeout_;
};
OutOfProcessPolicyFetcher::OutOfProcessPolicyFetcher(
scoped_refptr<PersistedData> persisted_data,
std::optional<bool> override_is_managed_device,
base::TimeDelta connection_timeout)
: persisted_data_(persisted_data),
override_is_managed_device_(override_is_managed_device),
connection_timeout_(connection_timeout) {}
OutOfProcessPolicyFetcher::~OutOfProcessPolicyFetcher() = default;
void OutOfProcessPolicyFetcher::FetchPolicies(
policy::PolicyFetchReason reason,
PolicyFetchCompleteCallback callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
VLOG(1) << __func__;
CHECK(!fetch_complete_callback_);
fetch_complete_callback_ = mojo::WrapCallbackWithDefaultInvokeIfNotRun(
update_client::MakeTimedCallback(std::move(callback), connection_timeout_,
kErrorIpcDisconnect,
scoped_refptr<PolicyManagerInterface>()),
kErrorIpcDisconnect, nullptr);
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::MayBlock()},
base::BindOnce([] { return AnyAppEnablesUsageStats(GetUpdaterScope()); }),
base::BindOnce(
[](base::TimeDelta connection_timeout, const std::string& cohort_id,
base::OnceCallback<void(
std::unique_ptr<mojo::IsolatedConnection>,
mojo::Remote<
enterprise_companion::mojom::EnterpriseCompanion>)>
callback,
bool enable_usage_stats) {
enterprise_companion::ConnectAndLaunchServer(
base::DefaultClock::GetInstance(), connection_timeout,
enable_usage_stats, cohort_id, std::move(callback));
},
connection_timeout_,
persisted_data_->GetCohort(enterprise_companion::kCompanionAppId),
base::BindOnce(&OutOfProcessPolicyFetcher::OnConnected,
base::WrapRefCounted(this), reason)));
}
void OutOfProcessPolicyFetcher::OnConnected(
policy::PolicyFetchReason reason,
std::unique_ptr<mojo::IsolatedConnection> connection,
mojo::Remote<enterprise_companion::mojom::EnterpriseCompanion> remote) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
VLOG(1) << __func__;
if (!connection || !remote) {
VLOG(1) << "Failed to establish IPC connection with the companion app for "
"policy fetch.";
std::move(fetch_complete_callback_)
.Run(kErrorMojoConnectionFailure, nullptr);
return;
}
connection_ = std::move(connection);
remote_ = std::move(remote);
remote_->FetchPolicies(
reason, base::BindOnce(&OutOfProcessPolicyFetcher::OnPoliciesFetched,
base::WrapRefCounted(this)));
}
void OutOfProcessPolicyFetcher::OnPoliciesFetched(
enterprise_companion::mojom::StatusPtr mojom_status) {
if (!mojom_status) {
VLOG(1) << "Received null status from out-of-process fetcher.";
std::move(fetch_complete_callback_).Run(kErrorIpcDisconnect, nullptr);
return;
}
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
VLOG(1) << "Policy fetch status: " << mojom_status->code
<< ", space: " << mojom_status->space
<< ", description: " << mojom_status->description;
if (mojom_status->space == enterprise_companion::kStatusOk) {
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::MayBlock(), base::WithBaseSyncPrimitives()},
base::BindOnce(
[](std::optional<bool> override_is_managed_device) {
return CreateDMPolicyManager(override_is_managed_device);
},
override_is_managed_device_),
base::BindOnce(
[](PolicyFetchCompleteCallback callback,
scoped_refptr<PolicyManagerInterface> dm_policy_manager) {
std::move(callback).Run(kErrorOk, dm_policy_manager);
},
std::move(fetch_complete_callback_)));
} else {
int result = kErrorPolicyFetchFailed;
if (mojom_status->space == enterprise_companion::kStatusApplicationError &&
mojom_status->code ==
static_cast<int>(enterprise_companion::ApplicationError::
kRegistrationPreconditionFailed)) {
scoped_refptr<device_management_storage::DMStorage> dm_storage =
device_management_storage::GetDefaultDMStorage();
result = (dm_storage && dm_storage->IsEnrollmentMandatory())
? kErrorDMRegistrationFailed
: kErrorOk;
}
std::move(fetch_complete_callback_).Run(result, nullptr);
}
}
scoped_refptr<PolicyFetcher> CreateOutOfProcessPolicyFetcher(
scoped_refptr<PersistedData> persisted_data,
std::optional<bool> override_is_managed_device,
base::TimeDelta override_ceca_connection_timeout) {
return base::MakeRefCounted<OutOfProcessPolicyFetcher>(
persisted_data, std::move(override_is_managed_device),
override_ceca_connection_timeout);
}
} // namespace updater
|
