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| 1 // Copyright 2014 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 "components/proximity_auth/connection.h" |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "components/proximity_auth/connection_observer.h" |
| 9 #include "components/proximity_auth/wire_message.h" |
| 10 |
| 11 namespace proximity_auth { |
| 12 |
| 13 Connection::Connection(const RemoteDevice& remote_device) |
| 14 : remote_device_(remote_device), |
| 15 status_(DISCONNECTED), |
| 16 is_sending_message_(false) { |
| 17 } |
| 18 |
| 19 Connection::~Connection() { |
| 20 } |
| 21 |
| 22 bool Connection::IsConnected() const { |
| 23 return status_ == CONNECTED; |
| 24 } |
| 25 |
| 26 void Connection::SendMessage(scoped_ptr<WireMessage> message) { |
| 27 if (!IsConnected()) { |
| 28 VLOG(1) << "Cannot send message when disconnected."; |
| 29 return; |
| 30 } |
| 31 |
| 32 if (is_sending_message_) { |
| 33 VLOG(1) << "Another message is currently in progress."; |
| 34 return; |
| 35 } |
| 36 |
| 37 is_sending_message_ = true; |
| 38 SendMessageImpl(message.Pass()); |
| 39 } |
| 40 |
| 41 void Connection::AddObserver(ConnectionObserver* observer) { |
| 42 observers_.AddObserver(observer); |
| 43 } |
| 44 |
| 45 void Connection::RemoveObserver(ConnectionObserver* observer) { |
| 46 observers_.RemoveObserver(observer); |
| 47 } |
| 48 |
| 49 void Connection::SetStatus(Status status) { |
| 50 if (status_ == status) |
| 51 return; |
| 52 |
| 53 received_bytes_.clear(); |
| 54 |
| 55 Status old_status = status_; |
| 56 status_ = status; |
| 57 FOR_EACH_OBSERVER(ConnectionObserver, |
| 58 observers_, |
| 59 OnConnectionStatusChanged(*this, old_status, status_)); |
| 60 } |
| 61 |
| 62 void Connection::OnDidSendMessage(const WireMessage& message, bool success) { |
| 63 if (!is_sending_message_) { |
| 64 VLOG(1) << "Send completed, but no message in progress."; |
| 65 return; |
| 66 } |
| 67 |
| 68 is_sending_message_ = false; |
| 69 FOR_EACH_OBSERVER( |
| 70 ConnectionObserver, observers_, OnSendCompleted(*this, message, success)); |
| 71 } |
| 72 |
| 73 void Connection::OnBytesReceived(const std::string& bytes) { |
| 74 if (!IsConnected()) { |
| 75 VLOG(1) << "Received bytes, but not connected."; |
| 76 return; |
| 77 } |
| 78 |
| 79 received_bytes_ += bytes; |
| 80 if (HasReceivedCompleteMessage()) { |
| 81 scoped_ptr<WireMessage> message = DeserializeWireMessage(); |
| 82 if (message) { |
| 83 FOR_EACH_OBSERVER( |
| 84 ConnectionObserver, observers_, OnMessageReceived(*this, *message)); |
| 85 } |
| 86 |
| 87 // Whether the message was parsed successfully or not, clear the |
| 88 // |received_bytes_| buffer. |
| 89 received_bytes_.clear(); |
| 90 } |
| 91 } |
| 92 |
| 93 bool Connection::HasReceivedCompleteMessage() { |
| 94 return WireMessage::IsCompleteMessage(received_bytes_); |
| 95 } |
| 96 |
| 97 scoped_ptr<WireMessage> Connection::DeserializeWireMessage() { |
| 98 return WireMessage::Deserialize(received_bytes_); |
| 99 } |
| 100 |
| 101 } // namespace proximity_auth |
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