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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chromeos/dbus/biod_record_client.h" |
| 6 |
| 7 #include <stdint.h> |
| 8 |
| 9 #include "base/bind.h" |
| 10 #include "base/macros.h" |
| 11 #include "dbus/bus.h" |
| 12 #include "dbus/message.h" |
| 13 #include "dbus/object_path.h" |
| 14 #include "dbus/object_proxy.h" |
| 15 #include "third_party/cros_system_api/dbus/service_constants.h" |
| 16 |
| 17 namespace chromeos { |
| 18 |
| 19 // The BiodRecordClient implementation used in production. |
| 20 class BiodRecordClientImpl : public BiodRecordClient { |
| 21 public: |
| 22 BiodRecordClientImpl() : weak_ptr_factory_(this) {} |
| 23 |
| 24 ~BiodRecordClientImpl() override {} |
| 25 |
| 26 void SetLabel(const dbus::ObjectPath& record_path, |
| 27 const std::string& label) override { |
| 28 dbus::MethodCall method_call(biod::kRecordInterface, |
| 29 biod::kRecordSetLabelMethod); |
| 30 dbus::MessageWriter writer(&method_call); |
| 31 writer.AppendString(label); |
| 32 |
| 33 dbus::ObjectProxy* record_proxy = |
| 34 bus_->GetObjectProxy(biod::kBiodServiceName, record_path); |
| 35 record_proxy->CallMethod(&method_call, |
| 36 dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| 37 dbus::ObjectProxy::EmptyResponseCallback()); |
| 38 } |
| 39 |
| 40 void Remove(const dbus::ObjectPath& record_path) override { |
| 41 dbus::MethodCall method_call(biod::kRecordInterface, |
| 42 biod::kRecordRemoveMethod); |
| 43 |
| 44 dbus::ObjectProxy* record_proxy = |
| 45 bus_->GetObjectProxy(biod::kBiodServiceName, record_path); |
| 46 record_proxy->CallMethod(&method_call, |
| 47 dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| 48 dbus::ObjectProxy::EmptyResponseCallback()); |
| 49 } |
| 50 |
| 51 void GetLabel(const dbus::ObjectPath& record_path, |
| 52 const StringCallback& callback) override { |
| 53 dbus::MethodCall method_call(dbus::kDBusPropertiesInterface, |
| 54 dbus::kDBusPropertiesGet); |
| 55 dbus::MessageWriter writer(&method_call); |
| 56 writer.AppendString(biod::kRecordInterface); |
| 57 writer.AppendString(biod::kRecordLabelProperty); |
| 58 |
| 59 dbus::ObjectProxy* record_proxy = |
| 60 bus_->GetObjectProxy(biod::kBiodServiceName, record_path); |
| 61 record_proxy->CallMethod( |
| 62 &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| 63 base::Bind(&BiodRecordClientImpl::OnGetLabel, |
| 64 weak_ptr_factory_.GetWeakPtr(), callback)); |
| 65 } |
| 66 |
| 67 std::string GetLabelBlocking(const dbus::ObjectPath& record_path) override { |
| 68 dbus::MethodCall method_call(dbus::kDBusPropertiesInterface, |
| 69 dbus::kDBusPropertiesGet); |
| 70 dbus::MessageWriter writer(&method_call); |
| 71 writer.AppendString(biod::kRecordInterface); |
| 72 writer.AppendString(biod::kRecordLabelProperty); |
| 73 |
| 74 dbus::ObjectProxy* record_proxy = |
| 75 bus_->GetObjectProxy(biod::kBiodServiceName, record_path); |
| 76 std::unique_ptr<dbus::Response> response = record_proxy->CallMethodAndBlock( |
| 77 &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT); |
| 78 |
| 79 if (!response) |
| 80 return ""; |
| 81 |
| 82 dbus::MessageReader reader(response.get()); |
| 83 std::string result; |
| 84 if (!reader.PopVariantOfString(&result)) { |
| 85 return ""; |
| 86 } |
| 87 |
| 88 return result; |
| 89 } |
| 90 |
| 91 protected: |
| 92 void Init(dbus::Bus* bus) override { bus_ = bus; } |
| 93 |
| 94 private: |
| 95 void OnGetLabel(const StringCallback& callback, dbus::Response* response) { |
| 96 dbus::MessageReader reader(response); |
| 97 std::string result; |
| 98 if (reader.PopVariantOfString(&result)) { |
| 99 callback.Run(result); |
| 100 } |
| 101 } |
| 102 |
| 103 dbus::Bus* bus_; |
| 104 |
| 105 // Note: This should remain the last member so it'll be destroyed and |
| 106 // invalidate its weak pointers before any other members are destroyed. |
| 107 base::WeakPtrFactory<BiodRecordClientImpl> weak_ptr_factory_; |
| 108 |
| 109 DISALLOW_COPY_AND_ASSIGN(BiodRecordClientImpl); |
| 110 }; |
| 111 |
| 112 BiodRecordClient::BiodRecordClient() {} |
| 113 |
| 114 BiodRecordClient::~BiodRecordClient() {} |
| 115 |
| 116 // static |
| 117 BiodRecordClient* BiodRecordClient::Create(DBusClientImplementationType type) { |
| 118 return new BiodRecordClientImpl(); |
| 119 } |
| 120 |
| 121 } // namespace chromeos |
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