Example #1
0
        public static void Parse(Packet packet, bool isMultiple = false)
        {
            ParsedStatus status;

            var opcode = packet.Opcode;

            packet.WriteLine(packet.GetHeader(isMultiple));

            if (opcode == 0)
                return;

            Action<Packet> handler;
            if (Handlers.TryGetValue(opcode, out handler))
            {
                if (Settings.DumpFormat == DumpFormatType.SniffDataOnly)
                {
                    var attrs = handler.Method.GetCustomAttributes(typeof (HasSniffDataAttribute), false);

                    packet.AddSniffData(StoreNameType.Opcode, packet.Opcode, Opcodes.GetOpcodeName(packet.Opcode));

                    if (attrs.Length == 0)
                    {
                        packet.Status = ParsedStatus.NotParsed;
                        return; // skip parsing "useless" packets when in SniffData-only-mode
                    }
                }

                try
                {
                    handler(packet);

                    if (packet.Position == packet.Length)
                        status = ParsedStatus.Success;
                    else
                    {
                        var pos = packet.Position;
                        var len = packet.Length;
                        packet.WriteLine("Packet not fully read! Current position is {0}, length is {1}, and diff is {2}.",
                            pos, len, len - pos);

                        if (len < 300) // If the packet isn't "too big" and it is not full read, print its hex table
                            packet.AsHex();

                        status = ParsedStatus.WithErrors;
                    }
                }
                catch (Exception ex)
                {
                    packet.WriteLine(ex.GetType().ToString());
                    packet.WriteLine(ex.Message);
                    packet.WriteLine(ex.StackTrace);

                    status = ParsedStatus.WithErrors;
                }
            }
            else
            {
                packet.AsHex();
                status = ParsedStatus.NotParsed;
            }

            if (!isMultiple)
            {
                packet.Status = status;

                if (Settings.DumpFormat != DumpFormatType.SniffDataOnly)
                {
                    // added before for this type
                    var data = status == ParsedStatus.Success ? Opcodes.GetOpcodeName(packet.Opcode) : status.ToString();
                    packet.AddSniffData(StoreNameType.Opcode, packet.Opcode, data);
                }
            }
        }
Example #2
0
        public static void Parse(Packet packet, bool isMultiple = false)
        {
            ParsedStatus status;

            packet.WriteLine(packet.GetHeader(isMultiple));

            if (packet.Opcode == 0)
                return;

            var opcode = Opcodes.GetOpcode(packet.Opcode, packet.Direction);
            var key = new KeyValuePair<ClientVersionBuild, Opcode>(ClientVersion.VersionDefiningBuild, opcode);

            Action<Packet> handler;
            var hasHandler = VersionHandlers.TryGetValue(key, out handler);
            if (!hasHandler)
            {
                // If no handler was found, try to find a handler that works for any version.
                key = new KeyValuePair<ClientVersionBuild, Opcode>(ClientVersionBuild.Zero, opcode);
                hasHandler = VersionHandlers.TryGetValue(key, out handler);
            }

            if (hasHandler && Settings.DumpFormat != DumpFormatType.HexOnly)
            {
                if (Settings.DumpFormat == DumpFormatType.SniffDataOnly)
                {
                    var attrs = handler.Method.GetCustomAttributes(typeof(HasSniffDataAttribute), false);

                    packet.AddSniffData(StoreNameType.Opcode, packet.Opcode, Opcodes.GetOpcodeName(packet.Opcode, packet.Direction));

                    if (attrs.Length == 0)
                    {
                        packet.Status = ParsedStatus.NotParsed;
                        return; // skip parsing "useless" packets when in SniffData-only-mode
                    }
                }

                try
                {
                    handler(packet);

                    if (packet.Position == packet.Length)
                        status = ParsedStatus.Success;
                    else
                    {
                        var pos = packet.Position;
                        var len = packet.Length;
                        packet.WriteLine("Packet not fully read! Current position: {0} Length: {1} Bytes remaining: {2}.",
                            pos, len, len - pos);

                        if (len < 300) // If the packet isn't "too big" and it is not full read, print its hex table
                            packet.AsHex();

                        status = ParsedStatus.WithErrors;
                    }
                }
                catch (Exception ex)
                {
                    packet.WriteLine(ex.GetType().ToString());
                    packet.WriteLine(ex.Message);
                    packet.WriteLine(ex.StackTrace);

                    status = ParsedStatus.WithErrors;
                }
            }
            else
            {
                packet.AsHex();
                status = opcode == Opcode.NULL_OPCODE ? ParsedStatus.NotParsed : ParsedStatus.NoStructure;
            }

            if (!isMultiple)
            {
                packet.Status = status;

                if (Settings.DumpFormat != DumpFormatType.SniffDataOnly)
                {
                    // added before for this type
                    var data = status == ParsedStatus.Success ? Opcodes.GetOpcodeName(packet.Opcode, packet.Direction) : status.ToString();
                    packet.AddSniffData(StoreNameType.Opcode, packet.Opcode, data);
                }
            }
        }