Example #1
0
        public ProtocolTreeNode nextTree(byte[] pInput = null, bool useDecrypt = true)
        {
            if (pInput != null)
            {
                if (pInput.Length == 0)
                {
                    return(null);
                }
                this.buffer = new List <byte>();
                this.buffer.AddRange(pInput);
            }

            int stanzaFlag = (this.peekInt8() & 0xF0) >> 4;
            int stanzaSize = this.peekInt16(1);

            int flags = stanzaFlag;
            int size  = stanzaSize;

            if (stanzaSize > this.buffer.Count)
            {
                var exception = new IncompleteMessageException("Incomplete message");
                exception.setInput(this.buffer.ToArray());
                throw exception;
            }

            this.readInt24();

            bool isEncrypted = (stanzaFlag & 8) != 0;

            if (isEncrypted)
            {
                if (Encryptionkey != null)
                {
                    decode(size, useDecrypt);
                }
                else
                {
                    throw new Exception("Received encrypted message, encryption key not set");
                }
            }

            if (stanzaSize > 0)
            {
                ProtocolTreeNode node = this.nextTreeInternal();
                if (node != null)
                {
                    this.DebugPrint(node.NodeString("RECVD: "));
                }
                return(node);
            }
            return(null);
        }
        public ProtocolTreeNode nextTree(byte[] pInput = null, bool useDecrypt = true)
        {
            if (pInput != null)
            {
                if (pInput.Length == 0)
                    return null;
                this.buffer = new List<byte>();
                this.buffer.AddRange(pInput);
            }

            int stanzaFlag = (this.peekInt8() & 0xF0) >> 4;
            int stanzaSize = this.peekInt16(1);

            int flags = stanzaFlag;
            int size = stanzaSize;

            if (stanzaSize > this.buffer.Count)
            {
                var exception = new IncompleteMessageException("Incomplete message");
                exception.setInput(this.buffer.ToArray());
                throw exception;
            }

            this.readInt24();

            bool isEncrypted = (stanzaFlag & 8) != 0;

            if (isEncrypted)
            {
                if (Encryptionkey != null)
                {
                    decode(size, useDecrypt);
                }
                else
                {
                    throw new Exception("Received encrypted message, encryption key not set");
                }
            }

            if(stanzaSize > 0)
            {
                ProtocolTreeNode node = this.nextTreeInternal();
                if (node != null)
                    this.DebugPrint(node.NodeString("RECVD: "));
                return node;
            }
            return null;
        }
Example #3
0
        public ProtocolTreeNode nextTree(string pInput = null)
        {
            if (pInput != null)
            {
                this.input = pInput;
            }

            int stanzaSize = this.peekInt16();

            if (stanzaSize > this.input.Length)
            {
                //Es sind noch nicht alle Daten eingelesen, daher abbrechen und warten bis alles da ist
                var exception = new IncompleteMessageException("Incomplete message");
                exception.setInput(this.input);
                throw exception;
            }

            this.readInt16();
            if (stanzaSize > 0)
            {
                return this.nextTreeInternal();
            }
            return null;
        }
        public ProtocolTreeNode nextTree(string pInput = null)
        {
            if (pInput != null)
            {
                this.input = pInput;
            }

            int stanzaSize = this.peekInt16();

            if (stanzaSize > this.input.Length)
            {
                //Es sind noch nicht alle Daten eingelesen, daher abbrechen und warten bis alles da ist
                var exception = new IncompleteMessageException("Incomplete message");
                exception.setInput(this.input);
                throw exception;
            }

            this.readInt16();
            if (stanzaSize > 0)
            {
                return(this.nextTreeInternal());
            }
            return(null);
        }
        //public ProtocolTreeNode nextTree(string pInput = null)
        //{
        //    if (pInput != null)
        //    {
        //        this.input = pInput;
        //    }
        //    //int stanzaSize = this.peekInt16();
        //    //Change to protocol 1.2
        //    int stanzaSize = this.peekInt24();
        //    int flags = (stanzaSize >> 20);
        //    int size = ((stanzaSize & 0xF0000) >> 16) | ((stanzaSize & 0xFF00) >> 8) | (stanzaSize & 0xFF);
        //    bool isEncrypted = ((flags & 8) != 0); // 8 = (1 << 4) // Read node and decrypt
        //    if (stanzaSize > this.input.Length)
        //    {
        //        //Es sind noch nicht alle Daten eingelesen, daher abbrechen und warten bis alles da ist
        //        var exception = new IncompleteMessageException("Incomplete message");
        //        exception.setInput(this.input);
        //        throw exception;
        //    }
        //    this.readInt24();
        //    if (stanzaSize > 0)
        //    {
        //        if (isEncrypted && Encryptionkey != null)
        //        {
        //            RC4 encryption = new RC4(this.Encryptionkey, 256);
        //            byte[] dataB = this.sysEncoding.GetBytes(this.input);
        //            byte[] enData = new byte[dataB.Length - 3];
        //            Buffer.BlockCopy(dataB, 3, enData, 0, dataB.Length - 3);
        //            //encryption.Cipher(enData, 0, dataB.Length - 3);
        //            enData = encryption.Encrypt(enData);
        //            Buffer.BlockCopy(enData, 0, dataB, 3, enData.Length);
        //        }
        //        return this.nextTreeInternal();
        //    }
        //    return null;
        //}
        public ProtocolTreeNode nextTree(byte[] pInput = null)
        {
            if (pInput != null)
            {
                if (pInput.Length == 0)
                    return null;
                this.buffer = new List<byte>();
                this.buffer.AddRange(pInput);
            }

            // Ported from the allegedly working PHP version ~lrg
            int stanzaFlag = (this.peekInt8() & 0xF0) >> 4;
            int stanzaSize = this.peekInt16(1);

            int flags = stanzaFlag;
            int size = stanzaSize;

            if (stanzaSize > this.buffer.Count)
            {
                var exception = new IncompleteMessageException("Incomplete message");
                exception.setInput(this.buffer.ToArray());
                throw exception;
            }

            this.readInt24();

            bool isEncrypted = (stanzaFlag & 8) != 0;

            if (isEncrypted && Encryptionkey != null)
            {
                decode(size);
            }

            if(stanzaSize > 0)
            {
                ProtocolTreeNode node = this.nextTreeInternal();
                if (node != null)
                    this.DebugPrint(node.NodeString("RECVD: "));
                return node;
            }
            return null;
        }