82 lines
3.2 KiB
C#
82 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Net.Sockets;
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using System.Text;
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using BS.Shared;
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namespace BeWoChatServer
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{
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public class Packet
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{
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public Socket Socket { get; set; }
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public int ClientNumber { get; set; }
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public string ClientName { get; set; }
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public long SenderPersonOid { get; set; }
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public long RecipientPersonOid { get; set; }
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public DataIdentifier DataIdentifier { get; set; }
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public string ChatMessage { get; set; }
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public byte[] DataBuffer = new byte[1024];
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public Packet(Socket pSocket, int pClientNumber, string pClientName, long pSenderPersonOid, long pRecipientPersonOid)
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{
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Socket = pSocket;
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ClientNumber = pClientNumber;
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ClientName = pClientName;
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SenderPersonOid = pSenderPersonOid;
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RecipientPersonOid = pRecipientPersonOid;
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}
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// 0 4 8 12 20 28
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// Description -> |dataIdentifier|name length|message length|sender person oid|recipient person oid| name | message |
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// Size in bytes -> | 4 | 4 | 4 | 8 | 8 |name length|message length|
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public Packet(byte[] dataStream)
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{
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DataIdentifier = (DataIdentifier)BitConverter.ToInt32(dataStream, 0);
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var nameLength = BitConverter.ToInt32(dataStream, 4);
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var messageLength = BitConverter.ToInt32(dataStream, 8);
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SenderPersonOid = BitConverter.ToInt64(dataStream, 12);
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RecipientPersonOid = BitConverter.ToInt64(dataStream, 20);
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ClientName = nameLength > 0 ? Encoding.UTF8.GetString(dataStream, 28, nameLength) : null;
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ChatMessage = messageLength > 0 ? Encoding.UTF8.GetString(dataStream, 28 + nameLength, messageLength) : null;
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}
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public void GetData(string message)
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{
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//Aufbau Message:
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// die ersten fünf ";" ignorieren
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// SenderOid;RecipientOid;ClientNameLength;MessageLength;ChatDataIdentifier;ClientNameChatMessage
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//23;281;20;389;1; 5 Semikola
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var gesplittet = message.Split(';');
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SenderPersonOid = Convert.ToInt64(gesplittet[0]);
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RecipientPersonOid = Convert.ToInt64(gesplittet[1]);
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var chatNameLength = Convert.ToInt32(gesplittet[2]);
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var chatMessageLength = Convert.ToInt32(gesplittet[3]);
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var headerLength = gesplittet[0].Length + gesplittet[1].Length + gesplittet[2].Length + gesplittet[3].Length + 5;
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var actualMessage = message.Substring(headerLength - 1);
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ClientName = actualMessage.Substring(0, chatNameLength);
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ChatMessage = actualMessage.Substring(chatNameLength);
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}
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// Java kennt nur unsigned bytes (-127 bis 128)
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public byte[] GetDataStream()
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{
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var result = "";
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return Encoding.UTF8.GetBytes(result);
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}
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}
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} |