首先想说的是，discuznt的api实在是太蛋疼了，无与伦比的蛋疼。
下面是正题，discuz!NT的api是用登陆后返回的auto_token来识别用户是否登录的，
所以要绕开论坛登录页面，就必须模拟用户的提交动作。
方法也就自然是模拟post和get方式的提交。
由于discuz十分蛋疼，
原来的的登陆流程是，检查用户是否登录——>跳转论坛登录页面——>post提交UserName，Password获得auto_token并写用户cookie
——>获得auto_token使用api获取用户信息得到游客身份——>再次跳会论坛登录页面get提交用户cookie，再次获得相同的auto_Token
——>通过再次获得的auto_Token使用api获取用户完整的userInfo（有时会失败，失败的话重复get提交即可）
是不是很疼啊。。
所以我的实现流程是，检查用户是否登录——>跳转本站自己的登录页面——>post提交用户信息到本站服务器
——>在服务器端将用户信息构造成原站的post请求发送出去，接收response并将获得的cookie写进另外构造的get请求中发送给原站，获得返回的auto_token
——>调回本站主页，并将autoToken作为参数传给主页，主页通过api获取userInfo（有时也会失败，使用是否post过的标志session，在再次调回登录页面的pageload事件中再次进行get请求）
一下是登录时的核心代码，需要另外实现httpproc，此代码网上可搜到。 
代码HttpProc
代码
1 string remoteLoginUrl = string.Format("{0}login.aspx?api_key={1}", url, api_key);
2 //建立请求客户端
3 WebClient client = new WebClient();
4 client.Encoding = System.Text.Encoding.UTF8;
5 string result = null;
6 //第一次Post请求，从输入获取参数
7 result = client.OpenRead(remoteLoginUrl,string.Format(
8 "username={0}&password={1}&login=",
9 Util.GetTextString(UserNameTxt.Text, true),
10 Util.GetTextString(PasswordTxt.Text, true)
11 )
12 );
13
14 //第二次Get请求，从第一次的response中获取cookie
15 client.RequestHeaders.Add("Cookie", client.Cookie);
16 Session["hasPosted"] = client.Cookie;
17 result = client.OpenRead(remoteLoginUrl);
18
19 //从返回结果中拿到带有auto_token的跳转链接
20 try
21 {
22 int j = result.IndexOf("<a href=\"") + 9;
23 int k = result.IndexOf("\">here</a>");
24 Response.Redirect(result.Substring(j, k - j), false);
25 }
26 catch (Exception ex)
27 {
28 string ss = ex.Message.ToString();
29 Session["hasPosted"] = null;
30 Response.Redirect(string.Format("Error.aspx?errorCode={0}", "LOGON_ERROR"));
31 }
32 }
2 //建立请求客户端
3 WebClient client = new WebClient();
4 client.Encoding = System.Text.Encoding.UTF8;
5 string result = null;
6 //第一次Post请求，从输入获取参数
7 result = client.OpenRead(remoteLoginUrl,string.Format(
8 "username={0}&password={1}&login=",
9 Util.GetTextString(UserNameTxt.Text, true),
10 Util.GetTextString(PasswordTxt.Text, true)
11 )
12 );
13
14 //第二次Get请求，从第一次的response中获取cookie
15 client.RequestHeaders.Add("Cookie", client.Cookie);
16 Session["hasPosted"] = client.Cookie;
17 result = client.OpenRead(remoteLoginUrl);
18
19 //从返回结果中拿到带有auto_token的跳转链接
20 try
21 {
22 int j = result.IndexOf("<a href=\"") + 9;
23 int k = result.IndexOf("\">here</a>");
24 Response.Redirect(result.Substring(j, k - j), false);
25 }
26 catch (Exception ex)
27 {
28 string ss = ex.Message.ToString();
29 Session["hasPosted"] = null;
30 Response.Redirect(string.Format("Error.aspx?errorCode={0}", "LOGON_ERROR"));
31 }
32 }
proc实现。
HttpProc 1 using System;
2 using System.Collections.Generic;
3 using System.Text;
4 using System.Net;
5 using System.Net.Sockets;
6 using System.Collections;
7 using System.IO;
8 using System.Text.RegularExpressions;
9 using RE = System.Text.RegularExpressions.Regex;
10 using System.Security.Cryptography.X509Certificates;
11
12 /***************************************************************************************************************************************************
13 HttpProc.WebClient client = new HttpProc.WebClient();
14 client.Encoding = System.Text.Encoding.Default;//默认编码方式，根据需要设置其他类型
15 client.OpenRead("http://www.baidu.com");//普通get请求
16 MessageBox.Show(client.RespHtml);//获取返回的网页源代码
17 client.DownloadFile("http://www.codepub.com/upload/163album.rar",@"C:\163album.rar");//下载文件
18 client.OpenRead("http://passport.baidu.com/?login","username=zhangsan&password=123456");//提交表单，此处是登录百度的示例
19 client.UploadFile("http://hiup.baidu.com/zhangsan/upload", @"file1=D:\1.mp3");//上传文件
20 client.UploadFile("http://hiup.baidu.com/zhangsan/upload", "folder=myfolder&size=4003550",@"file1=D:\1.mp3");//提交含文本域和文件域的表单
21 *****************************************************************************************************************************************************/
22
23 namespace GHY.HttpProc
24 {
25 ///<summary>
26 ///上传事件委托
27 ///</summary>
28 ///<param name="sender"></param>
29 ///<param name="e"></param>
30 public delegate void WebClientUploadEvent(object sender, HttpProc.UploadEventArgs e);
31
32 ///<summary>
33 ///下载事件委托
34 ///</summary>
35 ///<param name="sender"></param>
36 ///<param name="e"></param>
37 public delegate void WebClientDownloadEvent(object sender, HttpProc.DownloadEventArgs e);
38
39
40 ///<summary>
41 ///上传事件参数
42 ///</summary>
43 public struct UploadEventArgs
44 {
45 ///<summary>
46 ///上传数据总大小
47 ///</summary>
48 public long totalBytes;
49 ///<summary>
50 ///已发数据大小
51 ///</summary>
52 public long bytesSent;
53 ///<summary>
54 ///发送进度(0-1)
55 ///</summary>
56 public double sendProgress;
57 ///<summary>
58 ///发送速度Bytes/s
59 ///</summary>
60 public double sendSpeed;
61 }
62
63 ///<summary>
64 ///下载事件参数
65 ///</summary>
66 public struct DownloadEventArgs
67 {
68 ///<summary>
69 ///下载数据总大小
70 ///</summary>
71 public long totalBytes;
72 ///<summary>
73 ///已接收数据大小
74 ///</summary>
75 public long bytesReceived;
76 ///<summary>
77 ///接收数据进度(0-1)
78 ///</summary>
79 public double ReceiveProgress;
80 ///<summary>
81 ///当前缓冲区数据
82 ///</summary>
83 public byte[] receivedBuffer;
84 ///<summary>
85 ///接收速度Bytes/s
86 ///</summary>
87 public double receiveSpeed;
88 }
89
90 ///<summary>
91 ///实现向WEB服务器发送和接收数据
92 ///</summary>
93 public class WebClient
94 {
95 private WebHeaderCollection requestHeaders, responseHeaders;
96 private TcpClient clientSocket;
97 private MemoryStream postStream;
98 private Encoding encoding = Encoding.Default;
99 private const string BOUNDARY = "--HEDAODE--";
100 private const int SEND_BUFFER_SIZE = 10245;
101 private const int RECEIVE_BUFFER_SIZE = 10245;
102 private string cookie = "";
103 private string respHtml = "";
104 private string strRequestHeaders = "";
105 private string strResponseHeaders = "";
106 private int statusCode = 0;
107 private bool isCanceled = false;
108 public event WebClientUploadEvent UploadProgressChanged;
109 public event WebClientDownloadEvent DownloadProgressChanged;
110
111 ///<summary>
112 ///初始化WebClient类
113 ///</summary>
114 public WebClient()
115 {
116 responseHeaders = new WebHeaderCollection();
117 requestHeaders = new WebHeaderCollection();
118 }
119
120
121 ///<summary>
122 ///读取指定URL的文本
123 ///</summary>
124 ///<param name="URL">请求的地址</param>
125 ///<returns>服务器响应文本</returns>
126 public string OpenRead(string URL)
127 {
128 requestHeaders.Add("Connection", "close");
129 SendRequestData(URL, "GET");
130 return GetHtml();
131 }
132
133
134 //解决证书过期无法访问的问题
135 class CertPolicy : ICertificatePolicy
136 {
137 public bool CheckValidationResult(ServicePoint srvpt, X509Certificate cert, WebRequest req, int certprb)
138 { return true; }
139 }
140
141 ///<summary>
142 ///采用https协议访问网络
143 ///</summary>
144 ///<param name="URL">url地址</param>
145 ///<param name="strPostdata">发送的数据</param>
146 ///<returns></returns>
147 public string OpenReadWithHttps(string URL, string strPostdata)
148 {
149 ServicePointManager.CertificatePolicy = new CertPolicy();
150 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
151 request.CookieContainer = new CookieContainer();
152 request.Method = "POST";
153 request.Accept = "*/*";
154 request.ContentType = "application/x-www-form-urlencoded";
155 byte[] buffer = this.encoding.GetBytes(strPostdata);
156 request.ContentLength = buffer.Length;
157 request.GetRequestStream().Write(buffer, 0, buffer.Length);
158 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
159 StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
160 this.respHtml = reader.ReadToEnd();
161 foreach (System.Net.Cookie ck in response.Cookies)
162 {
163 this.cookie += ck.Name + "=" + ck.Value + ";";
164 }
165 reader.Close();
166 return respHtml;
167 }
168
169 ///<summary>
170 ///读取指定URL的文本
171 ///</summary>
172 ///<param name="URL">请求的地址</param>
173 ///<param name="postData">向服务器发送的文本数据</param>
174 ///<returns>服务器响应文本</returns>
175 public string OpenRead(string URL, string postData)
176 {
177 byte[] sendBytes = encoding.GetBytes(postData);
178 postStream = new MemoryStream();
179 postStream.Write(sendBytes, 0, sendBytes.Length);
180
181 requestHeaders.Add("Content-Length", postStream.Length.ToString());
182 requestHeaders.Add("Content-Type", "application/x-www-form-urlencoded");
183 requestHeaders.Add("Connection", "close");
184
185 SendRequestData(URL, "POST");
186 return GetHtml();
187 }
188
189
190 ///<summary>
191 ///读取指定URL的流
192 ///</summary>
193 ///<param name="URL">请求的地址</param>
194 ///<param name="postData">向服务器发送的数据</param>
195 ///<returns>服务器响应流</returns>
196 public Stream GetStream(string URL, string postData)
197 {
198 byte[] sendBytes = encoding.GetBytes(postData);
199 postStream = new MemoryStream();
200 postStream.Write(sendBytes, 0, sendBytes.Length);
201
202 requestHeaders.Add("Content-Length", postStream.Length.ToString());
203 requestHeaders.Add("Content-Type", "application/x-www-form-urlencoded");
204 requestHeaders.Add("Connection", "close");
205
206 SendRequestData(URL, "POST");
207
208 MemoryStream ms = new MemoryStream();
209 SaveNetworkStream(ms);
210 return ms;
211 }
212
213
214 ///<summary>
215 ///上传文件到服务器
216 ///</summary>
217 ///<param name="URL">请求的地址</param>
218 ///<param name="fileField">文件域(格式如:file1=C:\test.mp3&file2=C:\test.jpg)</param>
219 ///<returns>服务器响应文本</returns>
220 public string UploadFile(string URL, string fileField)
221 {
222 return UploadFile(URL, "", fileField);
223 }
224
225 ///<summary>
226 ///上传文件和数据到服务器
227 ///</summary>
228 ///<param name="URL">请求地址</param>
229 ///<param name="textField">文本域(格式为:name1=value1&name2=value2)</param>
230 ///<param name="fileField">文件域(格式如:file1=C:\test.mp3&file2=C:\test.jpg)</param>
231 ///<returns>服务器响应文本</returns>
232 public string UploadFile(string URL, string textField, string fileField)
233 {
234 postStream = new MemoryStream();
235
236 if (textField != "" && fileField != "")
237 {
238 WriteTextField(textField);
239 WriteFileField(fileField);
240 }
241 else if (fileField != "")
242 {
243 WriteFileField(fileField);
244 }
245 else if (textField != "")
246 {
247 WriteTextField(textField);
248 }
249 else
250 throw new Exception("文本域和文件域不能同时为空。");
251
252 //写入结束标记
253 byte[] buffer = encoding.GetBytes("--" + BOUNDARY + "--\r\n");
254 postStream.Write(buffer, 0, buffer.Length);
255
256 //添加请求标头
257 requestHeaders.Add("Content-Length", postStream.Length.ToString());
258 requestHeaders.Add("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
259 requestHeaders.Add("Connection", "Keep-Alive");
260
261 //发送请求数据
262 SendRequestData(URL, "POST", true);
263
264 //返回响应文本
265 return GetHtml();
266 }
267
268
269 ///<summary>
270 ///分析文本域，添加到请求流
271 ///</summary>
272 ///<param name="textField">文本域</param>
273 private void WriteTextField(string textField)
274 {
275 string[] strArr = RE.Split(textField, "&");
276 textField = "";
277 foreach (string var in strArr)
278 {
279 Match M = RE.Match(var, "([^=]+)=(.+)");
280 textField += "--" + BOUNDARY + "\r\n";
281 textField += "Content-Disposition: form-data; name=\"" + M.Groups[1].Value + "\"\r\n\r\n" + M.Groups[2].Value + "\r\n";
282 }
283 byte[] buffer = encoding.GetBytes(textField);
284 postStream.Write(buffer, 0, buffer.Length);
285 }
286
287 ///<summary>
288 ///分析文件域，添加到请求流
289 ///</summary>
290 ///<param name="fileField">文件域</param>
291 private void WriteFileField(string fileField)
292 {
293 string filePath = "";
294 int count = 0;
295 string[] strArr = RE.Split(fileField, "&");
296 foreach (string var in strArr) {
297 Match M = RE.Match(var, "([^=]+)=(.+)");
298 filePath = M.Groups[2].Value;
299 fileField = "--" + BOUNDARY + "\r\n";
300 fileField += "Content-Disposition: form-data; name=\"" + M.Groups[1].Value + "\"; filename=\"" + Path.GetFileName(filePath) + "\"\r\n";
301 fileField += "Content-Type: image/jpeg\r\n\r\n";
302
303 byte[] buffer = encoding.GetBytes(fileField);
304 postStream.Write(buffer, 0, buffer.Length);
305
306 //添加文件数据
307 FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
308 buffer = new byte[50000];
309
310 do
311 {
312 count = fs.Read(buffer, 0, buffer.Length);
313 postStream.Write(buffer, 0, count);
314
315 } while (count > 0);
316
317 fs.Close();
318 fs.Dispose();
319 fs = null;
320
321 buffer = encoding.GetBytes("\r\n");
322 postStream.Write(buffer, 0, buffer.Length);
323 }
324 }
325
326 ///<summary>
327 ///从指定URL下载数据流
328 ///</summary>
329 ///<param name="URL">请求地址</param>
330 ///<returns>数据流</returns>
331 public Stream DownloadData(string URL)
332 {
333 requestHeaders.Add("Connection", "close");
334 SendRequestData(URL, "GET");
335 MemoryStream ms = new MemoryStream();
336 SaveNetworkStream(ms, true);
337 return ms;
338 }
339
340
341 ///<summary>
342 ///从指定URL下载文件
343 ///</summary>
344 ///<param name="URL">文件URL地址</param>
345 ///<param name="fileName">文件保存路径,含文件名(如:C:\test.jpg)</param>
346 public void DownloadFile(string URL, string fileName)
347 {
348 requestHeaders.Add("Connection", "close");
349 SendRequestData(URL, "GET");
350 FileStream fs = new FileStream(fileName, FileMode.Create);
351 SaveNetworkStream(fs, true);
352 fs.Close();
353 fs = null;
354 }
355
356 ///<summary>
357 ///向服务器发送请求
358 ///</summary>
359 ///<param name="URL">请求地址</param>
360 ///<param name="method">POST或GET</param>
361 ///<param name="showProgress">是否显示上传进度</param>
362 private void SendRequestData(string URL, string method, bool showProgress)
363 {
364 clientSocket = new TcpClient();
365 Uri URI = new Uri(URL);
366 clientSocket.Connect(URI.Host, URI.Port);
367
368 requestHeaders.Add("Host", URI.Host);
369 byte[] request = GetRequestHeaders(method + " " + URI.PathAndQuery + " HTTP/1.1");
370 clientSocket.Client.Send(request);
371
372 //若有实体内容就发送它
373 if (postStream != null)
374 {
375 byte[] buffer = new byte[SEND_BUFFER_SIZE];
376 int count = 0;
377 Stream sm = clientSocket.GetStream();
378 postStream.Position = 0;
379
380 UploadEventArgs e = new UploadEventArgs();
381 e.totalBytes = postStream.Length;
382 System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch();//计时器
383 timer.Start();
384 do
385 {
386 //如果取消就推出
387 if (isCanceled) { break; }
388
389 //读取要发送的数据
390 count = postStream.Read(buffer, 0, buffer.Length);
391 //发送到服务器
392 sm.Write(buffer, 0, count);
393
394 //是否显示进度
395 if (showProgress)
396 {
397 //触发事件
398 e.bytesSent += count;
399 e.sendProgress = (double)e.bytesSent / (double)e.totalBytes;
400 double t = timer.ElapsedMilliseconds / 1000;
401 t = t <= 0 ? 1 : t;
402 e.sendSpeed = (double)e.bytesSent / t;
403 if (UploadProgressChanged != null) { UploadProgressChanged(this, e); }
404 }
405
406 } while (count > 0);
407 timer.Stop();
408 postStream.Close();
409 //postStream.Dispose();
410 postStream = null;
411
412 }//end if
413
414 }
415
416 ///<summary>
417 ///向服务器发送请求
418 ///</summary>
419 ///<param name="URL">请求URL地址</param>
420 ///<param name="method">POST或GET</param>
421 private void SendRequestData(string URL, string method)
422 {
423 SendRequestData(URL, method, false);
424 }
425
426
427 ///<summary>
428 ///获取请求头字节数组
429 ///</summary>
430 ///<param name="request">POST或GET请求</param>
431 ///<returns>请求头字节数组</returns>
432 private byte[] GetRequestHeaders(string request)
433 {
434 requestHeaders.Add("Accept", "*/*");
435 requestHeaders.Add("Accept-Language", "zh-cn");
436 requestHeaders.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)");
437
438 string headers = request + "\r\n";
439
440 foreach (string key in requestHeaders)
441 {
442 headers += key + ":" + requestHeaders[key] + "\r\n";
443 }
444
445 //有Cookie就带上Cookie
446 if (cookie != "") { headers += "Cookie:" + cookie + "\r\n"; }
447
448 //空行，请求头结束
449 headers += "\r\n";
450
451 strRequestHeaders = headers;
452 requestHeaders.Clear();
453 return encoding.GetBytes(headers);
454 }
455
456
457
458 ///<summary>
459 ///获取服务器响应文本
460 ///</summary>
461 ///<returns>服务器响应文本</returns>
462 private string GetHtml()
463 {
464 MemoryStream ms = new MemoryStream();
465 SaveNetworkStream(ms);//将网络流保存到内存流
466 StreamReader sr = new StreamReader(ms, encoding);
467 respHtml = sr.ReadToEnd();
468 sr.Close(); ms.Close();
469 return respHtml;
470 }
471
472 ///<summary>
473 ///将网络流保存到指定流
474 ///</summary>
475 ///<param name="toStream">保存位置</param>
476 ///<param name="needProgress">是否显示进度</param>
477 private void SaveNetworkStream(Stream toStream, bool showProgress)
478 {
479 //获取要保存的网络流
480 NetworkStream NetStream = clientSocket.GetStream();
481
482 byte[] buffer = new byte[RECEIVE_BUFFER_SIZE];
483 int count = 0, startIndex = 0;
484
485 MemoryStream ms = new MemoryStream();
486 for (int i = 0; i < 3; i++)
487 {
488 count = NetStream.Read(buffer, 0, 500);
489 ms.Write(buffer, 0, count);
490 }
491
492 if (ms.Length == 0) { NetStream.Close(); throw new Exception("远程服务器没有响应"); }
493
494 buffer = ms.GetBuffer();
495 count = (int)ms.Length;
496
497 GetResponseHeader(buffer, out startIndex);//分析响应，获取响应头和响应实体
498 count -= startIndex;
499 toStream.Write(buffer, startIndex, count);
500
501 DownloadEventArgs e = new DownloadEventArgs();
502
503 if (responseHeaders["Content-Length"] != null)
504 { e.totalBytes = long.Parse(responseHeaders["Content-Length"]); }
505 else
506 { e.totalBytes = -1; }
507
508 //启动计时器
509 System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch();
510 timer.Start();
511
512 do
513 {
514 //如果取消就推出
515 if (isCanceled) { break; }
516
517 //显示下载进度
518 if (showProgress)
519 {
520 e.bytesReceived += count;
521 e.ReceiveProgress = (double)e.bytesReceived / (double)e.totalBytes;
522
523 byte[] tempBuffer = new byte[count];
524 Array.Copy(buffer, startIndex, tempBuffer, 0, count);
525 e.receivedBuffer = tempBuffer;
526
527 double t = (timer.ElapsedMilliseconds + 0.1) / 1000;
528 e.receiveSpeed = (double)e.bytesReceived / t;
529
530 startIndex = 0;
531 if (DownloadProgressChanged != null) { DownloadProgressChanged(this, e); }
532 }
533
534 //读取网路数据到缓冲区
535 count = NetStream.Read(buffer, 0, buffer.Length);
536
537 //将缓存区数据保存到指定流
538 toStream.Write(buffer, 0, count);
539 } while (count > 0);
540
541 timer.Stop();//关闭计时器
542
543 if (responseHeaders["Content-Length"] != null)
544 {
545 toStream.SetLength(long.Parse(responseHeaders["Content-Length"]));
546 }
547 //else
548 //{
549 // toStream.SetLength(toStream.Length);
550 // responseHeaders.Add("Content-Length", toStream.Length.ToString());//添加响应标头
551 //}
552
553 toStream.Position = 0;
554
555 //关闭网络流和网络连接
556 NetStream.Close();
557 clientSocket.Close();
558 }
559
560
561 ///<summary>
562 ///将网络流保存到指定流
563 ///</summary>
564 ///<param name="toStream">保存位置</param>
565 private void SaveNetworkStream(Stream toStream)
566 {
567 SaveNetworkStream(toStream, false);
568 }
569
570
571
572 ///<summary>
573 ///分析响应流，去掉响应头
574 ///</summary>
575 ///<param name="buffer"></param>
576 private void GetResponseHeader(byte[] buffer, out int startIndex)
577 {
578 responseHeaders.Clear();
579 string html = encoding.GetString(buffer);
580 StringReader sr = new StringReader(html);
581
582 int start = html.IndexOf("\r\n\r\n") + 4;//找到空行位置
583 strResponseHeaders = html.Substring(0, start);//获取响应头文本
584
585 //获取响应状态码
586 //
587 if (sr.Peek() > -1)
588 {
589 //读第一行字符串
590 string line = sr.ReadLine();
591
592 //分析此行字符串,获取服务器响应状态码
593 Match M = RE.Match(line, @"\d\d\d");
594 if (M.Success)
595 {
596 statusCode = int.Parse(M.Value);
597 }
598 }
599
600 //获取响应头
601 //
602 while (sr.Peek() > -1)
603 {
604 //读一行字符串
605 string line = sr.ReadLine();
606
607 //若非空行
608 if (line != "")
609 {
610 //分析此行字符串，获取响应标头
611 Match M = RE.Match(line, "([^:]+):(.+)");
612 if (M.Success)
613 {
614 try
615 { //添加响应标头到集合
616 responseHeaders.Add(M.Groups[1].Value.Trim(), M.Groups[2].Value.Trim());
617 }
618 catch
619 { }
620
621
622 //获取Cookie
623 if (M.Groups[1].Value == "Set-Cookie")
624 {
625 M = RE.Match(M.Groups[2].Value, "[^=]+=[^;]+");
626 cookie += M.Value.Trim() + ";";
627 }
628 }
629
630 }
631 //若是空行，代表响应头结束响应实体开始。（响应头和响应实体间用一空行隔开）
632 else
633 {
634 //如果响应头中没有实体大小标头，尝试读响应实体第一行获取实体大小
635 if (responseHeaders["Content-Length"] == null && sr.Peek() > -1)
636 {
637 //读响应实体第一行
638 line = sr.ReadLine();
639
640 //分析此行看是否包含实体大小
641 Match M = RE.Match(line, "~[0-9a-fA-F]{1,15}");
642
643 if (M.Success)
644 {
645 //将16进制的实体大小字符串转换为10进制
646 int length = int.Parse(M.Value, System.Globalization.NumberStyles.AllowHexSpecifier);
647 responseHeaders.Add("Content-Length", length.ToString());//添加响应标头
648 strResponseHeaders += M.Value + "\r\n";
649 }
650 }
651 break;//跳出循环
652 }//End If
653 }//End While
654
655 sr.Close();
656
657 //实体开始索引
658 startIndex = encoding.GetBytes(strResponseHeaders).Length;
659 }
660
661
662 ///<summary>
663 ///取消上传或下载,要继续开始请调用Start方法
664 ///</summary>
665 public void Cancel()
666 {
667 isCanceled = true;
668 }
669
670 ///<summary>
671 ///启动上传或下载，要取消请调用Cancel方法
672 ///</summary>
673 public void Start()
674 {
675 isCanceled = false;
676 }
677
678 //*************************************************************
679 //以下为属性
680 //*************************************************************
681
682 ///<summary>
683 ///获取或设置请求头
684 ///</summary>
685 public WebHeaderCollection RequestHeaders
686 {
687 set { requestHeaders = value; }
688 get { return requestHeaders; }
689 }
690
691 ///<summary>
692 ///获取响应头集合
693 ///</summary>
694 public WebHeaderCollection ResponseHeaders
695 {
696 get { return responseHeaders; }
697 }
698
699 ///<summary>
700 ///获取请求头文本
701 ///</summary>
702 public string StrRequestHeaders
703 {
704 get { return strRequestHeaders; }
705 }
706
707 ///<summary>
708 ///获取响应头文本
709 ///</summary>
710 public string StrResponseHeaders
711 {
712 get { return strResponseHeaders; }
713 }
714
715 ///<summary>
716 ///获取或设置Cookie
717 ///</summary>
718 public string Cookie
719 {
720 set { cookie = value; }
721 get { return cookie; }
722 }
723
724 ///<summary>
725 ///获取或设置编码方式(默认为系统默认编码方式)
726 ///</summary>
727 public Encoding Encoding
728 {
729 set { encoding = value; }
730 get { return encoding; }
731 }
732
733 ///<summary>
734 ///获取服务器响应文本
735 ///</summary>
736 public string RespHtml
737 {
738 get { return respHtml; }
739 }
740
741
742 ///<summary>
743 ///获取服务器响应状态码
744 ///</summary>
745 public int StatusCode
746 {
747 get { return statusCode; }
748 }
749 }
750 }
2 using System.Collections.Generic;
3 using System.Text;
4 using System.Net;
5 using System.Net.Sockets;
6 using System.Collections;
7 using System.IO;
8 using System.Text.RegularExpressions;
9 using RE = System.Text.RegularExpressions.Regex;
10 using System.Security.Cryptography.X509Certificates;
11
12 /***************************************************************************************************************************************************
13 HttpProc.WebClient client = new HttpProc.WebClient();
14 client.Encoding = System.Text.Encoding.Default;//默认编码方式，根据需要设置其他类型
15 client.OpenRead("http://www.baidu.com");//普通get请求
16 MessageBox.Show(client.RespHtml);//获取返回的网页源代码
17 client.DownloadFile("http://www.codepub.com/upload/163album.rar",@"C:\163album.rar");//下载文件
18 client.OpenRead("http://passport.baidu.com/?login","username=zhangsan&password=123456");//提交表单，此处是登录百度的示例
19 client.UploadFile("http://hiup.baidu.com/zhangsan/upload", @"file1=D:\1.mp3");//上传文件
20 client.UploadFile("http://hiup.baidu.com/zhangsan/upload", "folder=myfolder&size=4003550",@"file1=D:\1.mp3");//提交含文本域和文件域的表单
21 *****************************************************************************************************************************************************/
22
23 namespace GHY.HttpProc
24 {
25 ///<summary>
26 ///上传事件委托
27 ///</summary>
28 ///<param name="sender"></param>
29 ///<param name="e"></param>
30 public delegate void WebClientUploadEvent(object sender, HttpProc.UploadEventArgs e);
31
32 ///<summary>
33 ///下载事件委托
34 ///</summary>
35 ///<param name="sender"></param>
36 ///<param name="e"></param>
37 public delegate void WebClientDownloadEvent(object sender, HttpProc.DownloadEventArgs e);
38
39
40 ///<summary>
41 ///上传事件参数
42 ///</summary>
43 public struct UploadEventArgs
44 {
45 ///<summary>
46 ///上传数据总大小
47 ///</summary>
48 public long totalBytes;
49 ///<summary>
50 ///已发数据大小
51 ///</summary>
52 public long bytesSent;
53 ///<summary>
54 ///发送进度(0-1)
55 ///</summary>
56 public double sendProgress;
57 ///<summary>
58 ///发送速度Bytes/s
59 ///</summary>
60 public double sendSpeed;
61 }
62
63 ///<summary>
64 ///下载事件参数
65 ///</summary>
66 public struct DownloadEventArgs
67 {
68 ///<summary>
69 ///下载数据总大小
70 ///</summary>
71 public long totalBytes;
72 ///<summary>
73 ///已接收数据大小
74 ///</summary>
75 public long bytesReceived;
76 ///<summary>
77 ///接收数据进度(0-1)
78 ///</summary>
79 public double ReceiveProgress;
80 ///<summary>
81 ///当前缓冲区数据
82 ///</summary>
83 public byte[] receivedBuffer;
84 ///<summary>
85 ///接收速度Bytes/s
86 ///</summary>
87 public double receiveSpeed;
88 }
89
90 ///<summary>
91 ///实现向WEB服务器发送和接收数据
92 ///</summary>
93 public class WebClient
94 {
95 private WebHeaderCollection requestHeaders, responseHeaders;
96 private TcpClient clientSocket;
97 private MemoryStream postStream;
98 private Encoding encoding = Encoding.Default;
99 private const string BOUNDARY = "--HEDAODE--";
100 private const int SEND_BUFFER_SIZE = 10245;
101 private const int RECEIVE_BUFFER_SIZE = 10245;
102 private string cookie = "";
103 private string respHtml = "";
104 private string strRequestHeaders = "";
105 private string strResponseHeaders = "";
106 private int statusCode = 0;
107 private bool isCanceled = false;
108 public event WebClientUploadEvent UploadProgressChanged;
109 public event WebClientDownloadEvent DownloadProgressChanged;
110
111 ///<summary>
112 ///初始化WebClient类
113 ///</summary>
114 public WebClient()
115 {
116 responseHeaders = new WebHeaderCollection();
117 requestHeaders = new WebHeaderCollection();
118 }
119
120
121 ///<summary>
122 ///读取指定URL的文本
123 ///</summary>
124 ///<param name="URL">请求的地址</param>
125 ///<returns>服务器响应文本</returns>
126 public string OpenRead(string URL)
127 {
128 requestHeaders.Add("Connection", "close");
129 SendRequestData(URL, "GET");
130 return GetHtml();
131 }
132
133
134 //解决证书过期无法访问的问题
135 class CertPolicy : ICertificatePolicy
136 {
137 public bool CheckValidationResult(ServicePoint srvpt, X509Certificate cert, WebRequest req, int certprb)
138 { return true; }
139 }
140
141 ///<summary>
142 ///采用https协议访问网络
143 ///</summary>
144 ///<param name="URL">url地址</param>
145 ///<param name="strPostdata">发送的数据</param>
146 ///<returns></returns>
147 public string OpenReadWithHttps(string URL, string strPostdata)
148 {
149 ServicePointManager.CertificatePolicy = new CertPolicy();
150 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
151 request.CookieContainer = new CookieContainer();
152 request.Method = "POST";
153 request.Accept = "*/*";
154 request.ContentType = "application/x-www-form-urlencoded";
155 byte[] buffer = this.encoding.GetBytes(strPostdata);
156 request.ContentLength = buffer.Length;
157 request.GetRequestStream().Write(buffer, 0, buffer.Length);
158 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
159 StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
160 this.respHtml = reader.ReadToEnd();
161 foreach (System.Net.Cookie ck in response.Cookies)
162 {
163 this.cookie += ck.Name + "=" + ck.Value + ";";
164 }
165 reader.Close();
166 return respHtml;
167 }
168
169 ///<summary>
170 ///读取指定URL的文本
171 ///</summary>
172 ///<param name="URL">请求的地址</param>
173 ///<param name="postData">向服务器发送的文本数据</param>
174 ///<returns>服务器响应文本</returns>
175 public string OpenRead(string URL, string postData)
176 {
177 byte[] sendBytes = encoding.GetBytes(postData);
178 postStream = new MemoryStream();
179 postStream.Write(sendBytes, 0, sendBytes.Length);
180
181 requestHeaders.Add("Content-Length", postStream.Length.ToString());
182 requestHeaders.Add("Content-Type", "application/x-www-form-urlencoded");
183 requestHeaders.Add("Connection", "close");
184
185 SendRequestData(URL, "POST");
186 return GetHtml();
187 }
188
189
190 ///<summary>
191 ///读取指定URL的流
192 ///</summary>
193 ///<param name="URL">请求的地址</param>
194 ///<param name="postData">向服务器发送的数据</param>
195 ///<returns>服务器响应流</returns>
196 public Stream GetStream(string URL, string postData)
197 {
198 byte[] sendBytes = encoding.GetBytes(postData);
199 postStream = new MemoryStream();
200 postStream.Write(sendBytes, 0, sendBytes.Length);
201
202 requestHeaders.Add("Content-Length", postStream.Length.ToString());
203 requestHeaders.Add("Content-Type", "application/x-www-form-urlencoded");
204 requestHeaders.Add("Connection", "close");
205
206 SendRequestData(URL, "POST");
207
208 MemoryStream ms = new MemoryStream();
209 SaveNetworkStream(ms);
210 return ms;
211 }
212
213
214 ///<summary>
215 ///上传文件到服务器
216 ///</summary>
217 ///<param name="URL">请求的地址</param>
218 ///<param name="fileField">文件域(格式如:file1=C:\test.mp3&file2=C:\test.jpg)</param>
219 ///<returns>服务器响应文本</returns>
220 public string UploadFile(string URL, string fileField)
221 {
222 return UploadFile(URL, "", fileField);
223 }
224
225 ///<summary>
226 ///上传文件和数据到服务器
227 ///</summary>
228 ///<param name="URL">请求地址</param>
229 ///<param name="textField">文本域(格式为:name1=value1&name2=value2)</param>
230 ///<param name="fileField">文件域(格式如:file1=C:\test.mp3&file2=C:\test.jpg)</param>
231 ///<returns>服务器响应文本</returns>
232 public string UploadFile(string URL, string textField, string fileField)
233 {
234 postStream = new MemoryStream();
235
236 if (textField != "" && fileField != "")
237 {
238 WriteTextField(textField);
239 WriteFileField(fileField);
240 }
241 else if (fileField != "")
242 {
243 WriteFileField(fileField);
244 }
245 else if (textField != "")
246 {
247 WriteTextField(textField);
248 }
249 else
250 throw new Exception("文本域和文件域不能同时为空。");
251
252 //写入结束标记
253 byte[] buffer = encoding.GetBytes("--" + BOUNDARY + "--\r\n");
254 postStream.Write(buffer, 0, buffer.Length);
255
256 //添加请求标头
257 requestHeaders.Add("Content-Length", postStream.Length.ToString());
258 requestHeaders.Add("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
259 requestHeaders.Add("Connection", "Keep-Alive");
260
261 //发送请求数据
262 SendRequestData(URL, "POST", true);
263
264 //返回响应文本
265 return GetHtml();
266 }
267
268
269 ///<summary>
270 ///分析文本域，添加到请求流
271 ///</summary>
272 ///<param name="textField">文本域</param>
273 private void WriteTextField(string textField)
274 {
275 string[] strArr = RE.Split(textField, "&");
276 textField = "";
277 foreach (string var in strArr)
278 {
279 Match M = RE.Match(var, "([^=]+)=(.+)");
280 textField += "--" + BOUNDARY + "\r\n";
281 textField += "Content-Disposition: form-data; name=\"" + M.Groups[1].Value + "\"\r\n\r\n" + M.Groups[2].Value + "\r\n";
282 }
283 byte[] buffer = encoding.GetBytes(textField);
284 postStream.Write(buffer, 0, buffer.Length);
285 }
286
287 ///<summary>
288 ///分析文件域，添加到请求流
289 ///</summary>
290 ///<param name="fileField">文件域</param>
291 private void WriteFileField(string fileField)
292 {
293 string filePath = "";
294 int count = 0;
295 string[] strArr = RE.Split(fileField, "&");
296 foreach (string var in strArr) {
297 Match M = RE.Match(var, "([^=]+)=(.+)");
298 filePath = M.Groups[2].Value;
299 fileField = "--" + BOUNDARY + "\r\n";
300 fileField += "Content-Disposition: form-data; name=\"" + M.Groups[1].Value + "\"; filename=\"" + Path.GetFileName(filePath) + "\"\r\n";
301 fileField += "Content-Type: image/jpeg\r\n\r\n";
302
303 byte[] buffer = encoding.GetBytes(fileField);
304 postStream.Write(buffer, 0, buffer.Length);
305
306 //添加文件数据
307 FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
308 buffer = new byte[50000];
309
310 do
311 {
312 count = fs.Read(buffer, 0, buffer.Length);
313 postStream.Write(buffer, 0, count);
314
315 } while (count > 0);
316
317 fs.Close();
318 fs.Dispose();
319 fs = null;
320
321 buffer = encoding.GetBytes("\r\n");
322 postStream.Write(buffer, 0, buffer.Length);
323 }
324 }
325
326 ///<summary>
327 ///从指定URL下载数据流
328 ///</summary>
329 ///<param name="URL">请求地址</param>
330 ///<returns>数据流</returns>
331 public Stream DownloadData(string URL)
332 {
333 requestHeaders.Add("Connection", "close");
334 SendRequestData(URL, "GET");
335 MemoryStream ms = new MemoryStream();
336 SaveNetworkStream(ms, true);
337 return ms;
338 }
339
340
341 ///<summary>
342 ///从指定URL下载文件
343 ///</summary>
344 ///<param name="URL">文件URL地址</param>
345 ///<param name="fileName">文件保存路径,含文件名(如:C:\test.jpg)</param>
346 public void DownloadFile(string URL, string fileName)
347 {
348 requestHeaders.Add("Connection", "close");
349 SendRequestData(URL, "GET");
350 FileStream fs = new FileStream(fileName, FileMode.Create);
351 SaveNetworkStream(fs, true);
352 fs.Close();
353 fs = null;
354 }
355
356 ///<summary>
357 ///向服务器发送请求
358 ///</summary>
359 ///<param name="URL">请求地址</param>
360 ///<param name="method">POST或GET</param>
361 ///<param name="showProgress">是否显示上传进度</param>
362 private void SendRequestData(string URL, string method, bool showProgress)
363 {
364 clientSocket = new TcpClient();
365 Uri URI = new Uri(URL);
366 clientSocket.Connect(URI.Host, URI.Port);
367
368 requestHeaders.Add("Host", URI.Host);
369 byte[] request = GetRequestHeaders(method + " " + URI.PathAndQuery + " HTTP/1.1");
370 clientSocket.Client.Send(request);
371
372 //若有实体内容就发送它
373 if (postStream != null)
374 {
375 byte[] buffer = new byte[SEND_BUFFER_SIZE];
376 int count = 0;
377 Stream sm = clientSocket.GetStream();
378 postStream.Position = 0;
379
380 UploadEventArgs e = new UploadEventArgs();
381 e.totalBytes = postStream.Length;
382 System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch();//计时器
383 timer.Start();
384 do
385 {
386 //如果取消就推出
387 if (isCanceled) { break; }
388
389 //读取要发送的数据
390 count = postStream.Read(buffer, 0, buffer.Length);
391 //发送到服务器
392 sm.Write(buffer, 0, count);
393
394 //是否显示进度
395 if (showProgress)
396 {
397 //触发事件
398 e.bytesSent += count;
399 e.sendProgress = (double)e.bytesSent / (double)e.totalBytes;
400 double t = timer.ElapsedMilliseconds / 1000;
401 t = t <= 0 ? 1 : t;
402 e.sendSpeed = (double)e.bytesSent / t;
403 if (UploadProgressChanged != null) { UploadProgressChanged(this, e); }
404 }
405
406 } while (count > 0);
407 timer.Stop();
408 postStream.Close();
409 //postStream.Dispose();
410 postStream = null;
411
412 }//end if
413
414 }
415
416 ///<summary>
417 ///向服务器发送请求
418 ///</summary>
419 ///<param name="URL">请求URL地址</param>
420 ///<param name="method">POST或GET</param>
421 private void SendRequestData(string URL, string method)
422 {
423 SendRequestData(URL, method, false);
424 }
425
426
427 ///<summary>
428 ///获取请求头字节数组
429 ///</summary>
430 ///<param name="request">POST或GET请求</param>
431 ///<returns>请求头字节数组</returns>
432 private byte[] GetRequestHeaders(string request)
433 {
434 requestHeaders.Add("Accept", "*/*");
435 requestHeaders.Add("Accept-Language", "zh-cn");
436 requestHeaders.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)");
437
438 string headers = request + "\r\n";
439
440 foreach (string key in requestHeaders)
441 {
442 headers += key + ":" + requestHeaders[key] + "\r\n";
443 }
444
445 //有Cookie就带上Cookie
446 if (cookie != "") { headers += "Cookie:" + cookie + "\r\n"; }
447
448 //空行，请求头结束
449 headers += "\r\n";
450
451 strRequestHeaders = headers;
452 requestHeaders.Clear();
453 return encoding.GetBytes(headers);
454 }
455
456
457
458 ///<summary>
459 ///获取服务器响应文本
460 ///</summary>
461 ///<returns>服务器响应文本</returns>
462 private string GetHtml()
463 {
464 MemoryStream ms = new MemoryStream();
465 SaveNetworkStream(ms);//将网络流保存到内存流
466 StreamReader sr = new StreamReader(ms, encoding);
467 respHtml = sr.ReadToEnd();
468 sr.Close(); ms.Close();
469 return respHtml;
470 }
471
472 ///<summary>
473 ///将网络流保存到指定流
474 ///</summary>
475 ///<param name="toStream">保存位置</param>
476 ///<param name="needProgress">是否显示进度</param>
477 private void SaveNetworkStream(Stream toStream, bool showProgress)
478 {
479 //获取要保存的网络流
480 NetworkStream NetStream = clientSocket.GetStream();
481
482 byte[] buffer = new byte[RECEIVE_BUFFER_SIZE];
483 int count = 0, startIndex = 0;
484
485 MemoryStream ms = new MemoryStream();
486 for (int i = 0; i < 3; i++)
487 {
488 count = NetStream.Read(buffer, 0, 500);
489 ms.Write(buffer, 0, count);
490 }
491
492 if (ms.Length == 0) { NetStream.Close(); throw new Exception("远程服务器没有响应"); }
493
494 buffer = ms.GetBuffer();
495 count = (int)ms.Length;
496
497 GetResponseHeader(buffer, out startIndex);//分析响应，获取响应头和响应实体
498 count -= startIndex;
499 toStream.Write(buffer, startIndex, count);
500
501 DownloadEventArgs e = new DownloadEventArgs();
502
503 if (responseHeaders["Content-Length"] != null)
504 { e.totalBytes = long.Parse(responseHeaders["Content-Length"]); }
505 else
506 { e.totalBytes = -1; }
507
508 //启动计时器
509 System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch();
510 timer.Start();
511
512 do
513 {
514 //如果取消就推出
515 if (isCanceled) { break; }
516
517 //显示下载进度
518 if (showProgress)
519 {
520 e.bytesReceived += count;
521 e.ReceiveProgress = (double)e.bytesReceived / (double)e.totalBytes;
522
523 byte[] tempBuffer = new byte[count];
524 Array.Copy(buffer, startIndex, tempBuffer, 0, count);
525 e.receivedBuffer = tempBuffer;
526
527 double t = (timer.ElapsedMilliseconds + 0.1) / 1000;
528 e.receiveSpeed = (double)e.bytesReceived / t;
529
530 startIndex = 0;
531 if (DownloadProgressChanged != null) { DownloadProgressChanged(this, e); }
532 }
533
534 //读取网路数据到缓冲区
535 count = NetStream.Read(buffer, 0, buffer.Length);
536
537 //将缓存区数据保存到指定流
538 toStream.Write(buffer, 0, count);
539 } while (count > 0);
540
541 timer.Stop();//关闭计时器
542
543 if (responseHeaders["Content-Length"] != null)
544 {
545 toStream.SetLength(long.Parse(responseHeaders["Content-Length"]));
546 }
547 //else
548 //{
549 // toStream.SetLength(toStream.Length);
550 // responseHeaders.Add("Content-Length", toStream.Length.ToString());//添加响应标头
551 //}
552
553 toStream.Position = 0;
554
555 //关闭网络流和网络连接
556 NetStream.Close();
557 clientSocket.Close();
558 }
559
560
561 ///<summary>
562 ///将网络流保存到指定流
563 ///</summary>
564 ///<param name="toStream">保存位置</param>
565 private void SaveNetworkStream(Stream toStream)
566 {
567 SaveNetworkStream(toStream, false);
568 }
569
570
571
572 ///<summary>
573 ///分析响应流，去掉响应头
574 ///</summary>
575 ///<param name="buffer"></param>
576 private void GetResponseHeader(byte[] buffer, out int startIndex)
577 {
578 responseHeaders.Clear();
579 string html = encoding.GetString(buffer);
580 StringReader sr = new StringReader(html);
581
582 int start = html.IndexOf("\r\n\r\n") + 4;//找到空行位置
583 strResponseHeaders = html.Substring(0, start);//获取响应头文本
584
585 //获取响应状态码
586 //
587 if (sr.Peek() > -1)
588 {
589 //读第一行字符串
590 string line = sr.ReadLine();
591
592 //分析此行字符串,获取服务器响应状态码
593 Match M = RE.Match(line, @"\d\d\d");
594 if (M.Success)
595 {
596 statusCode = int.Parse(M.Value);
597 }
598 }
599
600 //获取响应头
601 //
602 while (sr.Peek() > -1)
603 {
604 //读一行字符串
605 string line = sr.ReadLine();
606
607 //若非空行
608 if (line != "")
609 {
610 //分析此行字符串，获取响应标头
611 Match M = RE.Match(line, "([^:]+):(.+)");
612 if (M.Success)
613 {
614 try
615 { //添加响应标头到集合
616 responseHeaders.Add(M.Groups[1].Value.Trim(), M.Groups[2].Value.Trim());
617 }
618 catch
619 { }
620
621
622 //获取Cookie
623 if (M.Groups[1].Value == "Set-Cookie")
624 {
625 M = RE.Match(M.Groups[2].Value, "[^=]+=[^;]+");
626 cookie += M.Value.Trim() + ";";
627 }
628 }
629
630 }
631 //若是空行，代表响应头结束响应实体开始。（响应头和响应实体间用一空行隔开）
632 else
633 {
634 //如果响应头中没有实体大小标头，尝试读响应实体第一行获取实体大小
635 if (responseHeaders["Content-Length"] == null && sr.Peek() > -1)
636 {
637 //读响应实体第一行
638 line = sr.ReadLine();
639
640 //分析此行看是否包含实体大小
641 Match M = RE.Match(line, "~[0-9a-fA-F]{1,15}");
642
643 if (M.Success)
644 {
645 //将16进制的实体大小字符串转换为10进制
646 int length = int.Parse(M.Value, System.Globalization.NumberStyles.AllowHexSpecifier);
647 responseHeaders.Add("Content-Length", length.ToString());//添加响应标头
648 strResponseHeaders += M.Value + "\r\n";
649 }
650 }
651 break;//跳出循环
652 }//End If
653 }//End While
654
655 sr.Close();
656
657 //实体开始索引
658 startIndex = encoding.GetBytes(strResponseHeaders).Length;
659 }
660
661
662 ///<summary>
663 ///取消上传或下载,要继续开始请调用Start方法
664 ///</summary>
665 public void Cancel()
666 {
667 isCanceled = true;
668 }
669
670 ///<summary>
671 ///启动上传或下载，要取消请调用Cancel方法
672 ///</summary>
673 public void Start()
674 {
675 isCanceled = false;
676 }
677
678 //*************************************************************
679 //以下为属性
680 //*************************************************************
681
682 ///<summary>
683 ///获取或设置请求头
684 ///</summary>
685 public WebHeaderCollection RequestHeaders
686 {
687 set { requestHeaders = value; }
688 get { return requestHeaders; }
689 }
690
691 ///<summary>
692 ///获取响应头集合
693 ///</summary>
694 public WebHeaderCollection ResponseHeaders
695 {
696 get { return responseHeaders; }
697 }
698
699 ///<summary>
700 ///获取请求头文本
701 ///</summary>
702 public string StrRequestHeaders
703 {
704 get { return strRequestHeaders; }
705 }
706
707 ///<summary>
708 ///获取响应头文本
709 ///</summary>
710 public string StrResponseHeaders
711 {
712 get { return strResponseHeaders; }
713 }
714
715 ///<summary>
716 ///获取或设置Cookie
717 ///</summary>
718 public string Cookie
719 {
720 set { cookie = value; }
721 get { return cookie; }
722 }
723
724 ///<summary>
725 ///获取或设置编码方式(默认为系统默认编码方式)
726 ///</summary>
727 public Encoding Encoding
728 {
729 set { encoding = value; }
730 get { return encoding; }
731 }
732
733 ///<summary>
734 ///获取服务器响应文本
735 ///</summary>
736 public string RespHtml
737 {
738 get { return respHtml; }
739 }
740
741
742 ///<summary>
743 ///获取服务器响应状态码
744 ///</summary>
745 public int StatusCode
746 {
747 get { return statusCode; }
748 }
749 }
750 }
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