1 |
|
2 |
using System; |
3 |
using System.Linq; |
4 |
using System.IO; |
5 |
using System.Net; |
6 |
using System.Text; |
7 |
using System.Net.Sockets; |
8 |
using System.Threading; |
9 |
using System.Collections; |
10 |
using System.Collections.Generic; |
11 |
using System.Security.Cryptography; |
12 |
using System.Runtime.Serialization.Formatters.Binary; |
13 |
using System.Text.RegularExpressions; |
14 |
|
15 |
namespace _olbaid_websockets |
16 |
{ |
17 |
|
18 |
class UnPack { |
19 |
|
20 |
byte [] buffer; |
21 |
public int position; |
22 |
|
23 |
public UnPack(byte[] b){ |
24 |
buffer = b; |
25 |
position = 0; |
26 |
} |
27 |
|
28 |
public uint w (){ |
29 |
uint num = 0; |
30 |
byte bite = 0; |
31 |
do { |
32 |
num*=128; |
33 |
bite = buffer[position++]; |
34 |
num+=(uint)(bite&0x7f); |
35 |
}while ((bite&0x80)>0); |
36 |
return num; |
37 |
} |
38 |
} |
39 |
class Client |
40 |
{ |
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private Socket client; |
42 |
private Thread thread; |
43 |
private Socket deliantraClient = null; |
44 |
private bool upgraded = false; |
45 |
private bool mask = true; |
46 |
private bool useHixie = false; |
47 |
|
48 |
Random r = new Random(); |
49 |
|
50 |
System.Text.UTF8Encoding encodingUTF8 = new System.Text.UTF8Encoding(); |
51 |
|
52 |
|
53 |
private byte[] buffer = new byte[4096*16]; |
54 |
private byte[] mergedBuffer = new byte[4096*32]; |
55 |
private int mergedBufferLength = 0; |
56 |
|
57 |
public bool IsBitSet(byte b, int pos) { |
58 |
return (b & (int)Math.Pow(2, pos)) > 0 ? true : false; |
59 |
} |
60 |
|
61 |
public static int getNSpaces (string s){ |
62 |
return (new String(s.Where( c=> c==' ').ToArray())).Length; |
63 |
} |
64 |
|
65 |
public static Int64 numbers(string s){ |
66 |
char[] nums = s.Where( c => Char.IsNumber(c)).ToArray(); |
67 |
Int64 ret = Int64.Parse(new String(nums)); |
68 |
return ret; |
69 |
} |
70 |
|
71 |
public static void setBytes(byte [] buffer,UInt16 val,int index){ |
72 |
for (int i=0;i<2;++i){ |
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byte b = (byte)((val >> (3-i)*8)&0xff); |
74 |
buffer[index+i] = b; |
75 |
} |
76 |
} |
77 |
|
78 |
public static void setBytes(byte [] buffer,UInt32 val,int index){ |
79 |
for (int i=0;i<4;++i){ |
80 |
byte b = (byte)((val >> (3-i)*8)&0xff); |
81 |
buffer[index+i] = b; |
82 |
} |
83 |
} |
84 |
|
85 |
public static void setBytesR(byte [] buffer,UInt16 val,int index){ |
86 |
for (int i=1;i>=0;--i){ |
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byte b = (byte)((val >> (3-i)*8)&0xff); |
88 |
buffer[index+i] = b; |
89 |
} |
90 |
} |
91 |
|
92 |
public static byte [] calcHixieResponse (string key1,string key2,byte [] l8b){ |
93 |
UInt64 numbers1 = (UInt64) numbers(key1); |
94 |
UInt64 numbers2 = (UInt64) numbers(key2); |
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UInt64 spaces1 = (ulong)getNSpaces(key1); |
96 |
UInt64 spaces2 = (ulong)getNSpaces(key2); |
97 |
byte [] key = new byte [16]; |
98 |
|
99 |
Array.Clear(key,0,16); |
100 |
|
101 |
setBytes(key,(UInt32)(((numbers1/spaces1))),0); |
102 |
setBytes(key,(UInt32)(((numbers2/spaces2))),4); |
103 |
|
104 |
Array.Copy(l8b,0,key,8,8); |
105 |
MD5 md5Hash = MD5.Create(); |
106 |
return md5Hash.ComputeHash(key); |
107 |
} |
108 |
|
109 |
public static void setBytesR(byte [] buffer,UInt32 val,int index){ |
110 |
for (int i=3;i>=0;--i){ |
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byte b = (byte)((val >> (3-i)*8)&0xff); |
112 |
buffer[index+i] = b; |
113 |
} |
114 |
} |
115 |
public void onReceivedClientData (IAsyncResult asyn){ |
116 |
|
117 |
Socket mySocket = (Socket)asyn.AsyncState; |
118 |
|
119 |
int bytesRead = mySocket.EndReceive(asyn); |
120 |
if (bytesRead==0){ |
121 |
Console.WriteLine ("Connection closed by socket {0}" , mySocket==client?" client " : " deliantra "); |
122 |
|
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mySocket.Close(); |
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|
125 |
if ((mySocket==client)&&(deliantraClient!=null)){ |
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client = null; |
127 |
Console.WriteLine ("trying to close deliantraClient"); |
128 |
try { |
129 |
deliantraClient.Close(); |
130 |
deliantraClient = null; |
131 |
}catch (Exception ex){ |
132 |
|
133 |
} |
134 |
} |
135 |
return; |
136 |
} |
137 |
|
138 |
|
139 |
if (mySocket == client){ |
140 |
//deliantraClient.Send(buffer,bytesRead,0); |
141 |
Hashtable request = new Hashtable(); |
142 |
|
143 |
if (upgraded == false){ |
144 |
dump(buffer,bytesRead); |
145 |
string incoming = encodingUTF8.GetString(buffer,0,bytesRead); |
146 |
|
147 |
Console.WriteLine (incoming); |
148 |
|
149 |
string [] lines = incoming.Split(new string [] {"\n"},StringSplitOptions.RemoveEmptyEntries); |
150 |
|
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for (int i = 1;i<lines.Length;++i){ |
152 |
string [] line = lines[i].Split(new string [] {": "},StringSplitOptions.RemoveEmptyEntries); |
153 |
if (line.Length>=3) |
154 |
request.Add(line[0].ToString().ToLower().Trim(),line[1] + ":" + line[2]); |
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else if (line.Length>=2) |
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request.Add(line[0].ToString().ToLower().Trim(),line[1]); |
157 |
|
158 |
} |
159 |
foreach (DictionaryEntry e in request){ |
160 |
Console.WriteLine(e.Key.ToString() + " : '" + e.Value.ToString() + "'"); |
161 |
} |
162 |
|
163 |
|
164 |
if (request["sec-websocket-key1"]!=null){ |
165 |
string key1 = "357184 636 L0"; |
166 |
key1 = request["sec-websocket-key1"].ToString().Trim(); |
167 |
|
168 |
string key2 = "U 4=> 9&6= 52OeA[8 #880"; |
169 |
key2 = request["sec-websocket-key2"].ToString().Trim(); |
170 |
byte [] l8b = new byte[8]; |
171 |
Array.Copy (buffer,bytesRead-8,l8b,0,8); |
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|
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dump(l8b,8); |
174 |
|
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byte [] hixiResp = calcHixieResponse(key1,key2,l8b); |
176 |
|
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string origin = (string) (request["origin"] != null ? request["origin"].ToString().Trim(): ""); |
178 |
//origin="http://localhost"; |
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string host = (string) (request["host"] != null ? request["host"].ToString().Trim (): ""); |
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string location = Regex.Match(incoming,@"(/[a-z]+)",RegexOptions.IgnoreCase).Value.ToString(); |
181 |
|
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StringBuilder bResponse = new StringBuilder(); |
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bResponse.Append("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"); |
184 |
bResponse.Append( "Upgrade: WebSocket\r\n"); |
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bResponse.Append("Connection: Upgrade\r\n"); |
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bResponse.AppendFormat("Sec-WebSocket-Origin: {0}\r\n",origin); |
187 |
bResponse.Append( "Sec-WebSocket-Protocol: chat\r\n"); |
188 |
bResponse.AppendFormat("Sec-WebSocket-Location: ws://{0}{1}\r\n\r\n",host,location); |
189 |
byte [] data = encodingUTF8.GetBytes(bResponse.ToString()); |
190 |
byte [] result = new byte[data.Length+hixiResp.Length]; |
191 |
Array.Copy(data,0,result,0,data.Length); |
192 |
Array.Copy(hixiResp,0,result,data.Length,hixiResp.Length); |
193 |
client.Send(result,result.Length,SocketFlags.None); |
194 |
useHixie = true; |
195 |
upgraded = true; |
196 |
}else{ |
197 |
string key = ""; |
198 |
if (request["sec-websocket-key"]!=null){ |
199 |
Console.WriteLine("Key: " + request["sec-websocket-key"].ToString()); |
200 |
key = request["sec-websocket-key"].ToString().Trim(); |
201 |
}else{ |
202 |
key = ""; |
203 |
} |
204 |
if (request["sec-websocket-extensions"]!=null){ |
205 |
mask = false; |
206 |
} |
207 |
Console.WriteLine(key); |
208 |
//key+=Guid.NewGuid().ToString(); |
209 |
key+="258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; |
210 |
Console.WriteLine(key); |
211 |
SHA1 sha = new SHA1CryptoServiceProvider(); |
212 |
byte [] hash = sha.ComputeHash(encoding.GetBytes(key)); |
213 |
|
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key = EncodeTo64(hash); |
215 |
Console.WriteLine(key); |
216 |
string response = "HTTP/1.1 101 Switching Protocols\n" |
217 |
+ "Upgrade: websocket\n" |
218 |
+ "Connection: Upgrade\n" |
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//+ "Sec-WebSocket-Protocol: chat\r\n" |
220 |
+ "Sec-WebSocket-Accept: " + key +"\n\n"; |
221 |
response = "HTTP/1.1 101 WebSocket Protocol Handshake\r\n" |
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+ "Upgrade: WebSocket\r\n" |
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+ "Connection: Upgrade\r\n" |
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+ "Sec-WebSocket-Accept: " +key + "\r\n\r\n"; |
225 |
client.Send(encoding.GetBytes(response)); |
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upgraded = true; |
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} |
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|
229 |
deliantraClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); |
230 |
deliantraClient.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); |
231 |
IPEndPoint ipLocal = new IPEndPoint(IPAddress.Parse("194.126.175.156"), 13327); |
232 |
deliantraClient.Connect(ipLocal); |
233 |
deliantraClient.BeginReceive(buffer, 0, 4096, 0, new AsyncCallback(onReceivedClientData),deliantraClient); |
234 |
|
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}else{ |
236 |
//dump (buffer,bytesRead); |
237 |
|
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String msg = receiveMessage(buffer,bytesRead); |
239 |
Console.WriteLine(msg); |
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Array.Copy(encodingUTF8.GetBytes(msg),0,buffer,2,bytesRead = encodingUTF8.GetBytes(msg).Length); |
241 |
buffer [0] = (byte)(bytesRead/256); |
242 |
buffer [1] = (byte)(bytesRead%256); |
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deliantraClient.Send(buffer,0,bytesRead+2,0); |
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//Console.WriteLine(encoding.GetString(unmaskedData,0,payloadLen)); |
245 |
|
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//sendMessage("HELLO CRUEL WORLD"); |
247 |
|
248 |
} |
249 |
|
250 |
}else{ |
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//client.Send(buffer,bytesRead,0); |
252 |
//dump (buffer,bytesRead); |
253 |
if (client == null){ |
254 |
deliantraClient.Close(); |
255 |
deliantraClient = null; |
256 |
return; |
257 |
} |
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Array.Copy ( buffer,0,mergedBuffer,mergedBufferLength,bytesRead); |
259 |
mergedBufferLength += bytesRead; |
260 |
|
261 |
int index = 0; |
262 |
int len; |
263 |
byte [] tmpBuffer; |
264 |
while (index<mergedBufferLength){ |
265 |
try { |
266 |
len = mergedBuffer[index++]*256 + mergedBuffer[index++]; |
267 |
//Console.WriteLine("Index : {0}, len : {1}, mergedBufferLength {2}",index,len,mergedBufferLength); |
268 |
|
269 |
if ((len+index)<=mergedBufferLength){ |
270 |
//Console.WriteLine("Sending {0}",encodingUTF8.GetString(mergedBuffer,index,len)); |
271 |
//sendMessage(encodingUTF8.GetString(mergedBuffer,index,len)); |
272 |
tmpBuffer = new byte [len]; |
273 |
Array.Copy(mergedBuffer,index,tmpBuffer,0,len); |
274 |
if (encoding.GetString(tmpBuffer,0,2).Equals("ix")){ |
275 |
StringBuilder sb = new StringBuilder(); |
276 |
UnPack up = new UnPack(tmpBuffer); |
277 |
up.position = 3; |
278 |
uint id = up.w(); |
279 |
up.w(); |
280 |
sb.Append(id); |
281 |
sb.Append(".png"); |
282 |
|
283 |
if (!File.Exists("/var/www/olbaid/faces/" + sb.ToString())){ |
284 |
BinaryWriter bw = new BinaryWriter(File.OpenWrite("/var/www/olbaid/faces/" + sb.ToString())); |
285 |
bw.Write(tmpBuffer,up.position,len-up.position); |
286 |
bw.Close(); |
287 |
} |
288 |
tmpBuffer = new byte [up.position+3]; |
289 |
Array.Copy(mergedBuffer,index,tmpBuffer,0,3+up.position); |
290 |
|
291 |
} |
292 |
sendMessage(EncodeTo64(tmpBuffer)); |
293 |
|
294 |
Array.Copy(mergedBuffer,index+len,mergedBuffer,0,mergedBufferLength-len-2); |
295 |
mergedBufferLength -= len + 2; |
296 |
index = 0; |
297 |
}else{ |
298 |
break; |
299 |
} |
300 |
}catch (Exception ex){ |
301 |
} |
302 |
|
303 |
} |
304 |
|
305 |
} |
306 |
mySocket.BeginReceive(buffer, 0, 4096, 0, new AsyncCallback(onReceivedClientData),mySocket); |
307 |
} |
308 |
|
309 |
|
310 |
public string receiveMessage(byte[] buffer,int bytesRead){ |
311 |
|
312 |
|
313 |
if (useHixie){ |
314 |
string ret = encodingUTF8.GetString(buffer,1,bytesRead-2); |
315 |
Console.WriteLine(ret); |
316 |
return ret; |
317 |
} |
318 |
UInt64 payloadLen = 0; |
319 |
|
320 |
//int opcode = buffer[0]&0xf; |
321 |
|
322 |
|
323 |
bool mask = IsBitSet(buffer[1],7); |
324 |
if (!mask){ |
325 |
//Console.WriteLine("Ignoring non masked message"); |
326 |
//return; |
327 |
} |
328 |
|
329 |
|
330 |
payloadLen = (ulong)(buffer[1]& ~128); |
331 |
|
332 |
if (payloadLen==125){ |
333 |
|
334 |
}else if (payloadLen==126){ |
335 |
payloadLen = (ulong)(buffer[2]*256 + buffer[3]); |
336 |
Array.Copy(buffer,4,buffer,2,bytesRead-2); |
337 |
}else if (payloadLen==127){ |
338 |
payloadLen = (ulong)(buffer[2]*256*256*256 + buffer[3]*256*256 + buffer[4]*256 + buffer[5]); |
339 |
Array.Copy(buffer,6,buffer,2,bytesRead-2); |
340 |
} |
341 |
|
342 |
byte [] maskKey = new byte[]{0,0,0,0}; |
343 |
|
344 |
if (mask){ |
345 |
Array.Copy(buffer,2,maskKey,0,4); |
346 |
} |
347 |
|
348 |
byte [] unmaskedData = new byte[payloadLen]; |
349 |
|
350 |
|
351 |
Array.Copy(buffer,6,unmaskedData,0,(int)payloadLen); |
352 |
|
353 |
for (int i =0;i<(int)payloadLen;++i){ |
354 |
unmaskedData[i]=(byte)(unmaskedData[i]^maskKey[i%4]); |
355 |
} |
356 |
return encodingUTF8.GetString(unmaskedData); |
357 |
} |
358 |
public void sendMessage(byte[] message){ |
359 |
|
360 |
if (useHixie){ |
361 |
byte [] data = new byte[message.Length+2]; |
362 |
data[0] = 0; |
363 |
data[message.Length+1] = 255; |
364 |
Array.Copy((message),0,data,1,message.Length); |
365 |
client.Send(data,data.Length,SocketFlags.None); |
366 |
return; |
367 |
} |
368 |
//System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding(); |
369 |
byte [] unmaskedData = (message); |
370 |
int len = unmaskedData.Length; |
371 |
bool big = false; |
372 |
bool bigger = false; |
373 |
|
374 |
if (len>256*256+256){ |
375 |
bigger = true; |
376 |
}else if (len>125){ |
377 |
big = true; |
378 |
} |
379 |
|
380 |
byte [] buffer; |
381 |
|
382 |
if (bigger){ |
383 |
buffer = new byte[len+6+(mask?4:0)]; |
384 |
Array.Clear(buffer,0,len+6+(mask?4:0)); |
385 |
}else if (big){ |
386 |
buffer = new byte[len+4+(mask?4:0)]; |
387 |
Array.Clear(buffer,0,len+4+(mask?4:0)); |
388 |
}else{ |
389 |
buffer = new byte[len+2+(mask?4:0)]; |
390 |
Array.Clear(buffer,0,len+2+(mask?4:0)); |
391 |
} |
392 |
int optcode = 1; |
393 |
buffer[0] = (byte)(128 + optcode); |
394 |
|
395 |
int maskVal = 0; |
396 |
|
397 |
if (mask){ |
398 |
maskVal = 128; |
399 |
} |
400 |
|
401 |
if (bigger){ |
402 |
buffer[1] = (byte)(maskVal + 127); |
403 |
buffer[5] = (byte)(len%256); |
404 |
len/=256; |
405 |
buffer[4] = (byte)(len%256); |
406 |
len/=256; |
407 |
buffer[3] = (byte)(len%256); |
408 |
len/=256; |
409 |
buffer[2] = (byte)(len%256); |
410 |
}else if (big){ |
411 |
buffer[1] = (byte)(maskVal + 126); |
412 |
buffer[2] = (byte)(len/256); |
413 |
buffer[3] = (byte)(len%256); |
414 |
}else{ |
415 |
buffer[1] = (byte)(maskVal + len ); |
416 |
} |
417 |
|
418 |
if (mask){ |
419 |
byte [] maskKey = new byte[4]; |
420 |
r.NextBytes(maskKey); |
421 |
if (bigger){ |
422 |
Array.Copy(maskKey,0,buffer,6,4); |
423 |
}else if (big){ |
424 |
Array.Copy(maskKey,0,buffer,4,4); |
425 |
}else{ |
426 |
Array.Copy(maskKey,0,buffer,2,4); |
427 |
} |
428 |
if (bigger){ |
429 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
430 |
buffer[10+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
431 |
} |
432 |
}else if (big){ |
433 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
434 |
buffer[8+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
435 |
} |
436 |
}else{ |
437 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
438 |
buffer[6+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
439 |
} |
440 |
} |
441 |
}else{ |
442 |
int offset = 0; |
443 |
if (bigger){ |
444 |
offset=6; |
445 |
}else if (big){ |
446 |
offset=4; |
447 |
}else{ |
448 |
offset=2; |
449 |
} |
450 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
451 |
buffer[offset+i] = (byte)(unmaskedData[i]); |
452 |
} |
453 |
} |
454 |
|
455 |
client.Send(buffer); |
456 |
|
457 |
|
458 |
} |
459 |
public void sendMessage(string message){ |
460 |
|
461 |
if (useHixie){ |
462 |
byte [] data = new byte[message.Length+2]; |
463 |
data[0] = 0; |
464 |
data[message.Length+1] = 255; |
465 |
Array.Copy(encodingUTF8.GetBytes(message),0,data,1,message.Length); |
466 |
client.Send(data,data.Length,SocketFlags.None); |
467 |
return; |
468 |
} |
469 |
//System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding(); |
470 |
byte [] unmaskedData = encoding.GetBytes(message); |
471 |
int len = unmaskedData.Length; |
472 |
bool big = false; |
473 |
bool bigger = false; |
474 |
|
475 |
if (len>256*256+256){ |
476 |
bigger = true; |
477 |
}else if (len>125){ |
478 |
big = true; |
479 |
} |
480 |
|
481 |
byte [] buffer; |
482 |
|
483 |
if (bigger){ |
484 |
buffer = new byte[len+6+(mask?4:0)]; |
485 |
Array.Clear(buffer,0,len+6+(mask?4:0)); |
486 |
}else if (big){ |
487 |
buffer = new byte[len+4+(mask?4:0)]; |
488 |
Array.Clear(buffer,0,len+4+(mask?4:0)); |
489 |
}else{ |
490 |
buffer = new byte[len+2+(mask?4:0)]; |
491 |
Array.Clear(buffer,0,len+2+(mask?4:0)); |
492 |
} |
493 |
int optcode = 1; |
494 |
buffer[0] = (byte)(128 + optcode); |
495 |
|
496 |
int maskVal = 0; |
497 |
|
498 |
if (mask){ |
499 |
maskVal = 128; |
500 |
} |
501 |
|
502 |
if (bigger){ |
503 |
buffer[1] = (byte)(maskVal + 127); |
504 |
buffer[5] = (byte)(len%256); |
505 |
len/=256; |
506 |
buffer[4] = (byte)(len%256); |
507 |
len/=256; |
508 |
buffer[3] = (byte)(len%256); |
509 |
len/=256; |
510 |
buffer[2] = (byte)(len%256); |
511 |
}else if (big){ |
512 |
buffer[1] = (byte)(maskVal + 126); |
513 |
buffer[2] = (byte)(len/256); |
514 |
buffer[3] = (byte)(len%256); |
515 |
}else{ |
516 |
buffer[1] = (byte)(maskVal + len ); |
517 |
} |
518 |
|
519 |
if (mask){ |
520 |
byte [] maskKey = new byte[4]; |
521 |
r.NextBytes(maskKey); |
522 |
if (bigger){ |
523 |
Array.Copy(maskKey,0,buffer,6,4); |
524 |
}else if (big){ |
525 |
Array.Copy(maskKey,0,buffer,4,4); |
526 |
}else{ |
527 |
Array.Copy(maskKey,0,buffer,2,4); |
528 |
} |
529 |
if (bigger){ |
530 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
531 |
buffer[10+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
532 |
} |
533 |
}else if (big){ |
534 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
535 |
buffer[8+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
536 |
} |
537 |
}else{ |
538 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
539 |
buffer[6+i] = (byte)(unmaskedData[i]^maskKey[i%4]); |
540 |
} |
541 |
} |
542 |
}else{ |
543 |
int offset = 0; |
544 |
if (bigger){ |
545 |
offset=6; |
546 |
}else if (big){ |
547 |
offset=4; |
548 |
}else{ |
549 |
offset=2; |
550 |
} |
551 |
for (int i = 0 ; i<unmaskedData.Length;++i){ |
552 |
buffer[offset+i] = (byte)(unmaskedData[i]); |
553 |
} |
554 |
} |
555 |
|
556 |
client.Send(buffer); |
557 |
|
558 |
|
559 |
} |
560 |
public string EncodeTo64(byte[] toEncode) { |
561 |
byte[] toEncodeAsBytes = toEncode; |
562 |
string returnValue = System.Convert.ToBase64String(toEncodeAsBytes); |
563 |
return returnValue; |
564 |
} |
565 |
public string EncodeTo64(string toEncode) { |
566 |
byte[] toEncodeAsBytes = encoding.GetBytes(toEncode); |
567 |
string returnValue = System.Convert.ToBase64String(toEncodeAsBytes); |
568 |
return returnValue; |
569 |
} |
570 |
|
571 |
public Client(Socket client){ |
572 |
this.client = client; |
573 |
client.BeginReceive(buffer, 0, 4096, 0, new AsyncCallback(onReceivedClientData),client); |
574 |
|
575 |
|
576 |
} |
577 |
public void close(){ |
578 |
this.client.Close(); |
579 |
} |
580 |
|
581 |
public void threadfunc (){ |
582 |
|
583 |
} |
584 |
|
585 |
|
586 |
public Thread createThread(){ |
587 |
thread = new Thread(new ThreadStart(this.threadfunc)); |
588 |
return thread; |
589 |
} |
590 |
|
591 |
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding(); |
592 |
|
593 |
public void dumpBinary (BitArray b,int length){ |
594 |
Console.WriteLine(""); |
595 |
int counter = 0; |
596 |
for (int i = 0;i<length;++i){ |
597 |
if (b[i]){ |
598 |
Console.Write(1); |
599 |
}else{ |
600 |
Console.Write(0); |
601 |
} |
602 |
if (counter==0){ |
603 |
Console.Write(" "); |
604 |
} |
605 |
counter = (counter+1)%4; |
606 |
} |
607 |
Console.WriteLine(""); |
608 |
} |
609 |
|
610 |
public void dump (byte [] b,int size){ |
611 |
Console.WriteLine("{0} bytes received",size); |
612 |
int offset = 0; |
613 |
|
614 |
while (offset<size){ |
615 |
Console.Write ("{0:X2} ",b[offset]); |
616 |
|
617 |
if (offset>0&&offset%16==0){ |
618 |
|
619 |
Console.Write(encoding.GetString(b,offset-16,16)); |
620 |
|
621 |
Console.WriteLine(); |
622 |
} |
623 |
offset+=1; |
624 |
} |
625 |
|
626 |
Console.WriteLine(); |
627 |
|
628 |
} |
629 |
} |
630 |
} |
631 |
|