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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include "talk/base/basicdefs.h"
#include "talk/base/logging.h"
#include "talk/base/thread.h"
#ifdef FEATURE_ENABLE_SSL
#include "talk/base/schanneladapter.h"
#endif
#include "xmppsocket.h"
XmppSocket::XmppSocket(bool tls) : tls_(tls) {
cricket::Thread* pth = cricket::Thread::Current();
cricket::AsyncSocket* socket =
pth->socketserver()->CreateAsyncSocket(SOCK_STREAM);
#ifdef FEATURE_ENABLE_SSL
if (tls_)
socket = new cricket::SChannelAdapter(socket);
#endif
cricket_socket_ = socket;
cricket_socket_->SignalReadEvent.connect(this, &XmppSocket::OnReadEvent);
cricket_socket_->SignalWriteEvent.connect(this, &XmppSocket::OnWriteEvent);
cricket_socket_->SignalConnectEvent.connect(this,
&XmppSocket::OnConnectEvent);
state_ = buzz::AsyncSocket::STATE_CLOSED;
}
XmppSocket::~XmppSocket() {
Close();
delete cricket_socket_;
}
void XmppSocket::OnReadEvent(cricket::AsyncSocket * socket) {
SignalRead();
}
void XmppSocket::OnWriteEvent(cricket::AsyncSocket * socket) {
// Write bytes if there are any
while (buffer_.Length() != 0) {
int written = cricket_socket_->Send(buffer_.Data(), buffer_.Length());
if (written > 0) {
buffer_.Shift(written);
continue;
}
if (!cricket_socket_->IsBlocking())
LOG(LS_ERROR) << "Send error: " << cricket_socket_->GetError();
return;
}
}
void XmppSocket::OnConnectEvent(cricket::AsyncSocket * socket) {
#if defined(FEATURE_ENABLE_SSL)
if (state_ == buzz::AsyncSocket::STATE_TLS_CONNECTING) {
state_ = buzz::AsyncSocket::STATE_TLS_OPEN;
SignalSSLConnected();
OnWriteEvent(cricket_socket_);
return;
}
#endif // !defined(FEATURE_ENABLE_SSL)
state_ = buzz::AsyncSocket::STATE_OPEN;
SignalConnected();
}
buzz::AsyncSocket::State XmppSocket::state() {
return state_;
}
buzz::AsyncSocket::Error XmppSocket::error() {
return buzz::AsyncSocket::ERROR_NONE;
}
bool XmppSocket::Connect(const cricket::SocketAddress& addr) {
if (cricket_socket_->Connect(addr) < 0) {
return cricket_socket_->IsBlocking();
}
return true;
}
bool XmppSocket::Read(char * data, size_t len, size_t* len_read) {
int read = cricket_socket_->Recv(data, len);
if (read > 0) {
*len_read = (size_t)read;
return true;
}
return false;
}
bool XmppSocket::Write(const char * data, size_t len) {
buffer_.WriteBytes(data, len);
OnWriteEvent(cricket_socket_);
return true;
}
bool XmppSocket::Close() {
if (state_ != buzz::AsyncSocket::STATE_OPEN)
return false;
if (cricket_socket_->Close() == 0) {
state_ = buzz::AsyncSocket::STATE_CLOSED;
SignalClosed();
return true;
}
return false;
}
bool XmppSocket::StartTls(const std::string & domainname) {
#if defined(FEATURE_ENABLE_SSL)
if (!tls_)
return false;
cricket::SChannelAdapter * ssl =
static_cast<cricket::SChannelAdapter *>(cricket_socket_);
ssl->set_ignore_bad_cert(true);
if (ssl->StartSSL(domainname.c_str(), false) != 0)
return false;
state_ = buzz::AsyncSocket::STATE_TLS_CONNECTING;
return true;
#else // !defined(FEATURE_ENABLE_SSL)
return false;
#endif // !defined(FEATURE_ENABLE_SSL)
}
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