| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_STATUS_SENDER_H_ |
| #define REMOTING_HOST_STATUS_SENDER_H_ |
| |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "remoting/base/rsa_key_pair.h" |
| #include "remoting/host/host_exit_codes.h" |
| #include "remoting/jingle_glue/signal_strategy.h" |
| |
| namespace base { |
| class MessageLoopProxy; |
| } // namespace base |
| |
| namespace buzz { |
| class XmlElement; |
| } // namespace buzz |
| |
| namespace remoting { |
| |
| class RsaKeyPair; |
| class IqSender; |
| |
| // HostStatusSender sends the host status to the Chromoting Bot. |
| // Each host status stanza looks as follows: |
| // |
| // <cli:iq type="set" to="user@gmail.com/chromoting123123" |
| // id="123" xmlns:cli="jabber:client"> |
| // <rem:host-status rem:hostid="0" |
| // rem:status="OFFLINE" rem:exit-code="INVALID_HOST_CONFIGURATION" |
| // xmlns:rem="google:remoting"> |
| // <rem:signature rem:time="1372878097">.signature.</rem:signature> |
| // <rem:host-version>30.0.1554.0</rem:host-version> |
| // <rem:log><rem:entry cpu="x86_64" event-name="host-status" |
| // host-version="30.0.1560.0" os-name="Linux" role="host"/> |
| // </rem:log> |
| // </rem:host-status> |
| // </cli:iq> |
| // |
| // The signature is a base-64 encoded SHA-1 hash, signed with the host's |
| // private RSA key. The message being signed contains the full Jid (e.g. |
| // "user@gmail.com/chromoting123123"), the timestamp, the host status, |
| // and the exit code. |
| class HostStatusSender : SignalStrategy::Listener { |
| public: |
| |
| enum HostStatus { |
| OFFLINE = 0, |
| ONLINE = 1 |
| }; |
| |
| HostStatusSender(const std::string& host_id, |
| SignalStrategy* signal_strategy, |
| scoped_refptr<RsaKeyPair> key_pair, |
| const std::string& directory_bot_jid); |
| virtual ~HostStatusSender(); |
| |
| // SignalStrategy::Listener interface. |
| virtual void OnSignalStrategyStateChange( |
| SignalStrategy::State state) OVERRIDE; |
| virtual bool OnSignalStrategyIncomingStanza( |
| const buzz::XmlElement* stanza) OVERRIDE; |
| |
| // APIs for sending host status XMPP messages to the chromoting bot. |
| // status: the reason (exit code) why the host is offline. |
| void SendOnlineStatus(); |
| void SendOfflineStatus(HostExitCodes exit_code); |
| |
| inline static const char* HostStatusToString(HostStatus host_status) { |
| return host_status_strings_[host_status]; |
| } |
| |
| private: |
| // Helper method for sending either an online or an offline status message. |
| void SendHostStatus(HostStatus status, HostExitCodes exit_code); |
| |
| // Helper method to compose host status stanzas. |
| scoped_ptr<buzz::XmlElement> CreateHostStatusMessage( |
| HostStatus status, HostExitCodes exit_code); |
| |
| // Helper method to create the signature blob used in the host status stanza. |
| scoped_ptr<buzz::XmlElement> CreateSignature( |
| HostStatus status, HostExitCodes exit_code); |
| |
| std::string host_id_; |
| SignalStrategy* signal_strategy_; |
| scoped_refptr<RsaKeyPair> key_pair_; |
| std::string directory_bot_jid_; |
| scoped_ptr<IqSender> iq_sender_; |
| |
| // The string representation of the HostStatus values. |
| static const char* const host_status_strings_[2]; |
| |
| DISALLOW_COPY_AND_ASSIGN(HostStatusSender); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_STATUS_SENDER_H_ |