OLD | NEW |
(Empty) | |
| 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/components/tether/message_wrapper.h" |
| 6 |
| 7 #include "base/base64url.h" |
| 8 #include "base/json/json_reader.h" |
| 9 #include "base/json/json_writer.h" |
| 10 #include "base/memory/ptr_util.h" |
| 11 #include "base/values.h" |
| 12 |
| 13 namespace chromeos { |
| 14 |
| 15 namespace tether { |
| 16 |
| 17 namespace { |
| 18 |
| 19 const char kJsonTypeKey[] = "type"; |
| 20 const char kJsonDataKey[] = "data"; |
| 21 |
| 22 std::unique_ptr<google::protobuf::MessageLite> DecodedMessageToProto( |
| 23 const MessageType& type, |
| 24 const std::string& decoded_message) { |
| 25 switch (type) { |
| 26 case MessageType::CONNECT_TETHERING_REQUEST: { |
| 27 std::unique_ptr<ConnectTetheringRequest> connect_request = |
| 28 base::MakeUnique<ConnectTetheringRequest>(); |
| 29 connect_request->ParseFromString(decoded_message); |
| 30 return std::move(connect_request); |
| 31 } |
| 32 case MessageType::CONNECT_TETHERING_RESPONSE: { |
| 33 std::unique_ptr<ConnectTetheringResponse> connect_response = |
| 34 base::MakeUnique<ConnectTetheringResponse>(); |
| 35 connect_response->ParseFromString(decoded_message); |
| 36 return std::move(connect_response); |
| 37 } |
| 38 case MessageType::DISCONNECT_TETHERING_REQUEST: { |
| 39 std::unique_ptr<DisconnectTetheringRequest> disconnect_request = |
| 40 base::MakeUnique<DisconnectTetheringRequest>(); |
| 41 disconnect_request->ParseFromString(decoded_message); |
| 42 return std::move(disconnect_request); |
| 43 } |
| 44 case MessageType::KEEP_ALIVE_TICKLE: { |
| 45 std::unique_ptr<KeepAliveTickle> keep_alive_tickle = |
| 46 base::MakeUnique<KeepAliveTickle>(); |
| 47 keep_alive_tickle->ParseFromString(decoded_message); |
| 48 return std::move(keep_alive_tickle); |
| 49 } |
| 50 case MessageType::TETHER_AVAILABILITY_REQUEST: { |
| 51 std::unique_ptr<TetherAvailabilityRequest> tether_request = |
| 52 base::MakeUnique<TetherAvailabilityRequest>(); |
| 53 tether_request->ParseFromString(decoded_message); |
| 54 return std::move(tether_request); |
| 55 } |
| 56 case MessageType::TETHER_AVAILABILITY_RESPONSE: { |
| 57 std::unique_ptr<TetherAvailabilityResponse> tether_response = |
| 58 base::MakeUnique<TetherAvailabilityResponse>(); |
| 59 tether_response->ParseFromString(decoded_message); |
| 60 return std::move(tether_response); |
| 61 } |
| 62 default: |
| 63 return nullptr; |
| 64 } |
| 65 } |
| 66 |
| 67 } // namespace |
| 68 |
| 69 // static |
| 70 std::unique_ptr<MessageWrapper> MessageWrapper::FromRawMessage( |
| 71 const std::string& message) { |
| 72 std::unique_ptr<base::Value> json_value = base::JSONReader::Read(message); |
| 73 if (!json_value) { |
| 74 return nullptr; |
| 75 } |
| 76 |
| 77 std::unique_ptr<base::DictionaryValue> json_dictionary = |
| 78 base::DictionaryValue::From(std::move(json_value)); |
| 79 if (!json_dictionary) { |
| 80 return nullptr; |
| 81 } |
| 82 |
| 83 int message_type; |
| 84 if (!json_dictionary->GetInteger(kJsonTypeKey, &message_type)) { |
| 85 return nullptr; |
| 86 } |
| 87 |
| 88 std::string encoded_message; |
| 89 if (!json_dictionary->GetString(kJsonDataKey, &encoded_message)) { |
| 90 return nullptr; |
| 91 } |
| 92 |
| 93 std::string decoded_message; |
| 94 if (!base::Base64UrlDecode(encoded_message, |
| 95 base::Base64UrlDecodePolicy::REQUIRE_PADDING, |
| 96 &decoded_message)) { |
| 97 return nullptr; |
| 98 } |
| 99 |
| 100 std::unique_ptr<google::protobuf::MessageLite> proto = DecodedMessageToProto( |
| 101 static_cast<MessageType>(message_type), decoded_message); |
| 102 if (!proto) { |
| 103 return nullptr; |
| 104 } |
| 105 |
| 106 return base::WrapUnique(new MessageWrapper( |
| 107 static_cast<MessageType>(message_type), std::move(proto))); |
| 108 } |
| 109 |
| 110 MessageWrapper::MessageWrapper(const ConnectTetheringRequest& request) |
| 111 : type_(MessageType::CONNECT_TETHERING_REQUEST), |
| 112 proto_(new ConnectTetheringRequest(request)) {} |
| 113 |
| 114 MessageWrapper::MessageWrapper(const ConnectTetheringResponse& response) |
| 115 : type_(MessageType::CONNECT_TETHERING_RESPONSE), |
| 116 proto_(new ConnectTetheringResponse(response)) {} |
| 117 |
| 118 MessageWrapper::MessageWrapper(const DisconnectTetheringRequest& request) |
| 119 : type_(MessageType::DISCONNECT_TETHERING_REQUEST), |
| 120 proto_(new DisconnectTetheringRequest(request)) {} |
| 121 |
| 122 MessageWrapper::MessageWrapper(const KeepAliveTickle& tickle) |
| 123 : type_(MessageType::KEEP_ALIVE_TICKLE), |
| 124 proto_(new KeepAliveTickle(tickle)) {} |
| 125 |
| 126 MessageWrapper::MessageWrapper(const TetherAvailabilityRequest& request) |
| 127 : type_(MessageType::TETHER_AVAILABILITY_REQUEST), |
| 128 proto_(new TetherAvailabilityRequest(request)) {} |
| 129 |
| 130 MessageWrapper::MessageWrapper(const TetherAvailabilityResponse& response) |
| 131 : type_(MessageType::TETHER_AVAILABILITY_RESPONSE), |
| 132 proto_(new TetherAvailabilityResponse(response)) {} |
| 133 |
| 134 MessageWrapper::MessageWrapper( |
| 135 const MessageType& type, |
| 136 std::shared_ptr<google::protobuf::MessageLite> proto) |
| 137 : type_(type), proto_(proto) {} |
| 138 |
| 139 MessageWrapper::~MessageWrapper() {} |
| 140 |
| 141 std::shared_ptr<google::protobuf::MessageLite> MessageWrapper::GetProto() |
| 142 const { |
| 143 return proto_; |
| 144 } |
| 145 |
| 146 MessageType MessageWrapper::GetMessageType() const { |
| 147 return type_; |
| 148 } |
| 149 |
| 150 std::string MessageWrapper::ToRawMessage() const { |
| 151 std::string encoded_message; |
| 152 base::Base64UrlEncode(proto_->SerializeAsString(), |
| 153 base::Base64UrlEncodePolicy::INCLUDE_PADDING, |
| 154 &encoded_message); |
| 155 |
| 156 base::DictionaryValue json_dictionary; |
| 157 json_dictionary.SetInteger(kJsonTypeKey, static_cast<int>(type_)); |
| 158 json_dictionary.SetString(kJsonDataKey, encoded_message); |
| 159 |
| 160 std::string raw_message; |
| 161 base::JSONWriter::Write(json_dictionary, &raw_message); |
| 162 return raw_message; |
| 163 } |
| 164 |
| 165 } // namespace tether |
| 166 |
| 167 } // namespace chromeos |
OLD | NEW |