private static bool CheckPacket(ArraySegment <byte> buffer, int unitLength, RpcHttpRtsFlags flags, int numberOfCommands, out int unitLengthFound)
{
RpcHttpRtsFlags rpcHttpRtsFlags;
int num;
return(RpcHttpPackets.TryParseRtsHeader(buffer, out unitLengthFound, out rpcHttpRtsFlags, out num) && (unitLengthFound == unitLength && rpcHttpRtsFlags == flags) && num == numberOfCommands);
}
private static bool TryParseRtsHeader(IList <byte> buffer, out int unitLength, out RpcHttpRtsFlags flags, out int numberOfCommands)
{
unitLength = 0;
flags = RpcHttpRtsFlags.None;
numberOfCommands = 0;
if (buffer.Count < 20)
{
return(false);
}
if (buffer[2] != 20)
{
return(false);
}
unitLength = (int)RpcHttpPackets.ReadInt16(buffer, 8);
flags = (RpcHttpRtsFlags)RpcHttpPackets.ReadInt16(buffer, 16);
numberOfCommands = (int)RpcHttpPackets.ReadInt16(buffer, 18);
return(true);
}
// Token: 0x0600037C RID: 892 RVA: 0x00013D68 File Offset: 0x00011F68
protected override byte[] GetUpdatedBufferToSend(ArraySegment <byte> buffer)
{
if (!this.isConnecting)
{
return(null);
}
if (RpcHttpPackets.IsConnA3PacketInBuffer(buffer))
{
this.endTime = new ExDateTime?(ExDateTime.Now + this.connectTimeout);
}
if (RpcHttpPackets.IsConnC2PacketInBuffer(buffer))
{
this.isConnecting = false;
this.endTime = null;
}
if (RpcHttpPackets.IsPingPacket(buffer) && this.endTime != null && ExDateTime.Now >= this.endTime.Value)
{
throw new HttpProxyException(HttpStatusCode.InternalServerError, 2013, "Outbound proxy connection timed out");
}
return(null);
}
private static bool CheckPacketInStream(ArraySegment <byte> buffer, int unitLength, RpcHttpRtsFlags flags, int numberOfCommands)
{
while (buffer.Count > 0)
{
int num;
if (RpcHttpPackets.CheckPacket(buffer, unitLength, flags, numberOfCommands, out num))
{
return(true);
}
if (num == 0)
{
break;
}
int num2 = buffer.Offset + num;
int num3 = buffer.Count - num;
if (num2 > buffer.Array.Length || num3 < 0)
{
break;
}
buffer = new ArraySegment <byte>(buffer.Array, num2, num3);
}
return(false);
}
public static bool IsConnA3PacketInBuffer(ArraySegment <byte> buffer)
{
return(RpcHttpPackets.CheckPacketInStream(buffer, 28, RpcHttpRtsFlags.None, 1));
}
public static bool IsPingPacket(ArraySegment <byte> buffer)
{
int num;
return(RpcHttpPackets.CheckPacket(buffer, 20, RpcHttpRtsFlags.Ping, 0, out num));
}