1 // Copyright 2012 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "polo/pairing/serverpairingsession.h" 16 17 #include <glog/logging.h> 18 #include "polo/pairing/polochallengeresponse.h" 19 #include "polo/util/poloutil.h" 20 21 namespace polo { 22 namespace pairing { 23 24 ServerPairingSession::ServerPairingSession(wire::PoloWireAdapter *wire, 25 PairingContext *context, 26 PoloChallengeResponse* challenge, 27 const std::string& server_name) 28 : PairingSession(wire, context, challenge), 29 server_name_(server_name) { 30 } 31 32 ServerPairingSession::~ServerPairingSession() { 33 } 34 35 void ServerPairingSession::DoInitializationPhase() { 36 LOG(INFO) << "Waiting for PairingRequest..."; 37 wire()->GetNextMessage(); 38 } 39 40 void ServerPairingSession::DoConfigurationPhase() { 41 LOG(INFO) << "Waiting for Configuration..."; 42 wire()->GetNextMessage(); 43 } 44 45 void ServerPairingSession::OnPairingRequestMessage( 46 const message::PairingRequestMessage& message) { 47 set_service_name(message.service_name()); 48 49 if (message.has_client_name()) { 50 set_peer_name(message.client_name()); 51 } 52 53 message::PairingRequestAckMessage ack(service_name()); 54 wire()->SendPairingRequestAckMessage(ack); 55 56 LOG(INFO) << "Waiting for Options..."; 57 wire()->GetNextMessage(); 58 } 59 60 void ServerPairingSession::OnOptionsMessage( 61 const message::OptionsMessage& message) { 62 // The client is responsible for negotiating a valid configuration, so just 63 // send the server options. 64 wire()->SendOptionsMessage(local_options()); 65 66 DoConfigurationPhase(); 67 } 68 69 void ServerPairingSession::OnConfigurationMessage( 70 const message::ConfigurationMessage& message) { 71 if (!SetConfiguration(message)) { 72 wire()->SendErrorMessage(kErrorBadConfiguration); 73 listener()->OnError(kErrorBadConfiguration); 74 return; 75 } 76 77 const encoding::EncodingOption& encoding = message.encoding(); 78 79 if (GetLocalRole() == message::OptionsMessage::kDisplayDevice) { 80 if (!local_options().SupportsOutputEncoding(encoding)) { 81 LOG(ERROR) << "Unsupported output encoding requested: " 82 << encoding.encoding_type(); 83 wire()->SendErrorMessage(kErrorBadConfiguration); 84 listener()->OnError(kErrorBadConfiguration); 85 return; 86 } 87 } else { 88 if (!local_options().SupportsInputEncoding(encoding)) { 89 LOG(ERROR) << "Unsupported input encoding requested: " 90 << encoding.encoding_type(); 91 wire()->SendErrorMessage(kErrorBadConfiguration); 92 listener()->OnError(kErrorBadConfiguration); 93 return; 94 } 95 } 96 97 message::ConfigurationAckMessage ack; 98 wire()->SendConfigurationAckMessage(ack); 99 100 DoPairingPhase(); 101 } 102 103 void ServerPairingSession::OnConfigurationAckMessage( 104 const message::ConfigurationAckMessage& message) { 105 LOG(ERROR) << "Received unexpected ConfigurationAckMessage"; 106 wire()->SendErrorMessage(kErrorProtocol); 107 listener()->OnError(kErrorProtocol); 108 } 109 110 void ServerPairingSession::OnPairingRequestAckMessage( 111 const message::PairingRequestAckMessage& message) { 112 LOG(ERROR) << "Received unexpected PairingRequestAckMessage"; 113 wire()->SendErrorMessage(kErrorProtocol); 114 listener()->OnError(kErrorProtocol); 115 } 116 117 } // namespace pairing 118 } // namespace polo 119