Initial commit of sync engine code to browser/sync....

chrome/browser/sync/notifier/communicator/xmpp_socket_adapter.h

+// Copyright (c) 2009 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 CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_SOCKET_ADAPTER_H_
+#define CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_SOCKET_ADAPTER_H_
+#include <string>
+
+#include "talk/base/asyncsocket.h"
+#include "talk/xmpp/asyncsocket.h"
+#include "talk/xmpp/xmppclientsettings.h"
+#include "talk/xmpp/xmppengine.h"
+
+#ifndef _WIN32
+// Additional errors used by us from Win32 headers
+#define SEC_E_CERT_EXPIRED static_cast<int>(0x80090328L)
+#define WSA_NOT_ENOUGH_MEMORY ENOMEM
+#endif
+
+namespace notifier {
+
+class XmppSocketAdapter : public buzz::AsyncSocket,
+                          public sigslot::has_slots<> {
+ public:
+  XmppSocketAdapter(const buzz::XmppClientSettings& xcs,
+                    bool allow_unverified_certs);
+  virtual ~XmppSocketAdapter();
+
+  virtual State state() { return state_; }
+  virtual Error error() { return error_; }
+  virtual int GetError() { return wsa_error_; }
+
+  void set_firewall(bool firewall) { firewall_ = firewall; }
+
+  virtual bool Connect(const talk_base::SocketAddress& addr);
+  virtual bool Read(char* data, size_t len, size_t* len_read);
+  virtual bool Write(const char* data, size_t len);
+  virtual bool Close();
+
+#if defined(FEATURE_ENABLE_SSL)
+  bool StartTls(const std::string& domainname);
+  bool IsOpen() const { return state_ == STATE_OPEN
+                            || state_ == STATE_TLS_OPEN; }
+#else
+  bool IsOpen() const { return state_ == STATE_OPEN; }
+#endif
+
+  sigslot::signal0<> SignalAuthenticationError;
+
+ private:
+  // return false if the socket is closed
+  bool HandleReadable();
+  bool HandleWritable();
+
+  State state_;
+  Error error_;
+  int wsa_error_;
+
+  talk_base::AsyncSocket* socket_;
+  cricket::ProtocolType protocol_;
+  talk_base::ProxyInfo proxy_;
+  bool firewall_;
+  char* write_buffer_;
+  size_t write_buffer_length_;
+  size_t write_buffer_capacity_;
+  bool allow_unverified_certs_;
+
+  bool FreeState();
+  void NotifyClose();
+
+  void OnReadEvent(talk_base::AsyncSocket* socket);
+  void OnWriteEvent(talk_base::AsyncSocket* socket);
+  void OnConnectEvent(talk_base::AsyncSocket* socket);
+  void OnCloseEvent(talk_base::AsyncSocket* socket, int error);
+
+  void QueueWriteData(const char* data, size_t len);
+  void FlushWriteQueue(Error* error, int* wsa_error);
+
+  void SetError(Error error);
+  void SetWSAError(int error);
+  DISALLOW_COPY_AND_ASSIGN(XmppSocketAdapter);
+};
+}  // namespace notifier
+
+#endif  // CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_SOCKET_ADAPTER_H_