/// <summary>
/// Decodes handshake message.
/// </summary>
/// <param name="context">RTMP protocol state.</param>
/// <param name="stream">Buffer to be decoded.</param>
/// <returns>Buffer with handshake response.</returns>
public static object DecodeHandshake(RtmpContext context, ByteBuffer stream)
{
long remaining = stream.Remaining;
if (context.Mode == RtmpMode.Server)
{
if (context.State == RtmpState.Connect)
{
if (remaining < HandshakeSize + 1)
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
{
log.Debug(__Res.GetString(__Res.Rtmp_HSInitBuffering, remaining));
}
#endif
context.SetBufferDecoding(HandshakeSize + 1);
return(null);
}
else
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
{
log.Debug("Handshake 1st phase");
}
#endif
stream.Get();// skip the header byte
byte[] handshake = RtmpHandshake.GetHandshakeResponse(stream);
context.SetHandshake(handshake);
context.State = RtmpState.Handshake;
return(handshake);
}
}
if (context.State == RtmpState.Handshake)
{
//if (log.IsDebugEnabled)
// log.Debug("Handshake reply");
if (remaining < HandshakeSize)
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
{
log.Debug(__Res.GetString(__Res.Rtmp_HSReplyBuffering, remaining));
}
#endif
context.SetBufferDecoding(HandshakeSize);
return(null);
}
else
{
// Skip first 8 bytes when comparing the handshake, they seem to be changed when connecting from a Mac client.
if (!context.ValidateHandshakeReply(stream, 8, HandshakeSize - 8))
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
{
log.Debug("Handshake reply validation failed, disconnecting client.");
}
#endif
stream.Skip(HandshakeSize);
context.State = RtmpState.Error;
throw new HandshakeFailedException("Handshake validation failed");
}
stream.Skip(HandshakeSize);
context.State = RtmpState.Connected;
context.ContinueDecoding();
return(null);
}
}
}
else
{
//Client mode
if (context.State == RtmpState.Connect)
{
int size = (2 * HandshakeSize) + 1;
if (remaining < size)
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
{
log.Debug(__Res.GetString(__Res.Rtmp_HSInitBuffering, remaining));
}
#endif
context.SetBufferDecoding(size);
return(null);
}
else
{
ByteBuffer hs = ByteBuffer.Allocate(size);
ByteBuffer.Put(hs, stream, size);
hs.Flip();
context.State = RtmpState.Handshake;
return(hs);
}
}
}
return(null);
}
/// <summary>
/// Decodes handshake message.
/// </summary>
/// <param name="context">RTMP protocol state.</param>
/// <param name="stream">Buffer to be decoded.</param>
/// <returns>Buffer with handshake response.</returns>
public static object DecodeHandshake(RtmpContext context, ByteBuffer stream)
{
long remaining = stream.Remaining;
if(context.Mode == RtmpMode.Server)
{
if(context.State == RtmpState.Connect)
{
if(remaining < HandshakeSize + 1)
{
#if !SILVERLIGHT
if( log.IsDebugEnabled )
log.Debug(__Res.GetString(__Res.Rtmp_HSInitBuffering, remaining));
#endif
context.SetBufferDecoding(HandshakeSize + 1);
return null;
}
else
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
log.Debug("Handshake 1st phase");
#endif
stream.Get();// skip the header byte
byte[] handshake = RtmpHandshake.GetHandshakeResponse(stream);
context.SetHandshake(handshake);
context.State = RtmpState.Handshake;
return handshake;
}
}
if(context.State == RtmpState.Handshake)
{
//if (log.IsDebugEnabled)
// log.Debug("Handshake reply");
if(remaining < HandshakeSize)
{
#if !SILVERLIGHT
if( log.IsDebugEnabled )
log.Debug(__Res.GetString(__Res.Rtmp_HSReplyBuffering, remaining));
#endif
context.SetBufferDecoding(HandshakeSize);
return null;
}
else
{
// Skip first 8 bytes when comparing the handshake, they seem to be changed when connecting from a Mac client.
if (!context.ValidateHandshakeReply(stream, 8, HandshakeSize - 8))
{
#if !SILVERLIGHT
if (log.IsDebugEnabled)
log.Debug("Handshake reply validation failed, disconnecting client.");
#endif
stream.Skip(HandshakeSize);
context.State = RtmpState.Error;
throw new HandshakeFailedException("Handshake validation failed");
}
stream.Skip(HandshakeSize);
context.State = RtmpState.Connected;
context.ContinueDecoding();
return null;
}
}
}
else
{
//Client mode
if(context.State == RtmpState.Connect)
{
int size = (2 * HandshakeSize) + 1;
if(remaining < size)
{
#if !SILVERLIGHT
if( log.IsDebugEnabled )
log.Debug(__Res.GetString(__Res.Rtmp_HSInitBuffering, remaining));
#endif
context.SetBufferDecoding(size);
return null;
}
else
{
ByteBuffer hs = ByteBuffer.Allocate(size);
ByteBuffer.Put(hs, stream, size);
hs.Flip();
context.State = RtmpState.Handshake;
return hs;
}
}
}
return null;
}
