一个登录论坛并上传帖子和文件的代码
以前的，现在准备删除，就这里存档了的。一般获取网页和登录用得着的。
下载地址:https://files.cnblogs.com/rq204/%E7%99%BB%E5%BD%95%E8%AE%BA%E5%9D%9B%E5%B9%B6%E5%8F%91%E8%A1%A8%E5%B8%96%E5%AD%90%E7%9A%84%E4%BB%A3%E7%A0%81.rar
using System;
using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace BBSEasy{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private System.Net.CookieCollection cookie = new System.Net.CookieCollection(); private void btnLogin_Click(object sender, EventArgs e) { if (this.tbPassword.Text == "" || this.tbUserName.Text == "") return; string posturl = "http://www.aippt.cn/member.php?mod=logging&action=login&loginsubmit=yes&infloat=yes&lssubmit=yes&inajax=1"; System.Net.HttpWebRequest request = this.CreateHttp(posturl); string postdata = "username=" + ed(this.tbUserName.Text) + "&cookietime=2592000&password=" + ed(this.tbPassword.Text) + "&quickforward=yes&handlekey=ls"; byte[] bt = System.Text.Encoding.UTF8.GetBytes(postdata); request.ContentLength = bt.Length; System.IO.Stream sm = request.GetRequestStream(); sm.Write(bt, 0, bt.Length); sm.Close(); System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse(); string html = this.GetHtml(response); if (html.Contains("window.location.href='http://www.aippt.cn/';<")) { this.cookie = response.Cookies; MessageBox.Show("登录成功"); } else { MessageBox.Show(html, "登录失败"); } } private void Form1_Load(object sender, EventArgs e) { } private void button2_Click(object sender, EventArgs e) { OpenFileDialog ofd = new OpenFileDialog(); ofd.Multiselect = true; if (ofd.ShowDialog() == DialogResult.OK) { this.tbFile.Tag = ofd.FileNames; this.tbFile.Clear(); foreach (string f in ofd.FileNames) { this.tbFile.Text += f + ";"; } } } private string ed(string s) { return System.Web.HttpUtility.UrlEncode(s, System.Text.Encoding.UTF8); } private void btnPost_Click(object sender, EventArgs e) { if (this.tbTitle.Text == "" || this.tbContent.Text == "" || this.tbFid.Text == "") return; string fidurl = "http://www.aippt.cn/forum.php?mod=post&action=newthread&fid=" + this.tbFid.Text; System.Net.HttpWebRequest hwr = this.CreateHttp(fidurl); hwr.Method = "GET"; hwr.CookieContainer = new System.Net.CookieContainer(); hwr.CookieContainer.Add(this.cookie); System.Net.HttpWebResponse hwrs = (System.Net.HttpWebResponse)hwr.GetResponse(); string html = this.GetHtml(hwrs); string formhash = this.getInput(html, "\"formhash"); string posttime = this.getInput(html, "posttime"); string hash = this.getInput(html, "\"hash"); string uid = this.getInput(html, "\"uid"); string posturl = "http://www.aippt.cn/forum.php?mod=post&action=newthread&fid=" + this.tbFid.Text + "&extra=&topicsubmit=yes"; System.Net.HttpWebRequest request = this.CreateHttp(posturl); request.CookieContainer = new System.Net.CookieContainer(); request.CookieContainer.Add(this.cookie); request.AllowAutoRedirect = false; string postdata = "formhash=" + formhash + "&posttime=" + posttime + "&wysiwyg=1&subject=" + ed(this.tbTitle.Text) + "&message=" + ed(this.tbContent.Text) + "&replycredit_extcredits=0&replycredit_times=1&replycredit_membertimes=1&replycredit_random=100&tags=&save=&uploadalbum=-2&albumcatid=1&newalbum=%E8%AF%B7%E8%BE%93%E5%85%A5%E7%9B%B8%E5%86%8C%E5%90%8D%E7%A7%B0&usesig=1&allownoticeauthor=1"; if (this.tbFile.Tag != null) { string[] files = (string[])this.tbFile.Tag; foreach (string ff in files) { try { string aid = this.UploadFile(ff, this.tbFid.Text, uid, hash); postdata += "&" + ed("attachnew[" + aid + "][description]") + "=" + ed(System.IO.Path.GetFileName(ff)); } catch (Exception ex) { MessageBox.Show(ex.Message); return; } } } byte[] bt = System.Text.Encoding.UTF8.GetBytes(postdata); request.ContentLength = bt.Length; System.IO.Stream sm = request.GetRequestStream(); sm.Write(bt, 0, bt.Length); sm.Close(); System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse(); html = this.GetHtml(response); if (response.StatusCode == System.Net.HttpStatusCode.Moved) { MessageBox.Show("发布成功"); } else { MessageBox.Show(html, "发布失败"); } } private string getInput(string html, string name) { string start = name + "\" value=\""; int pos = html.IndexOf(start); if (pos > 0) { int pos2 = html.IndexOf("\"", pos + start.Length); if (pos2 > 0) { return html.Substring(pos + start.Length, pos2 - pos - start.Length); } } return ""; } private System.Net.HttpWebRequest CreateHttp(string url) { System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url); request.Method = "POST"; request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0"; request.Proxy = System.Net.HttpWebRequest.GetSystemWebProxy(); request.Referer = "http://www.aippt.cn/"; request.CookieContainer = new System.Net.CookieContainer(); request.ServicePoint.Expect100Continue = false; request.ContentType = "application/x-www-form-urlencoded"; request.AutomaticDecompression = System.Net.DecompressionMethods.GZip; request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0"; request.Proxy = System.Net.HttpWebRequest.GetSystemWebProxy(); request.Referer = "http://www.aippt.cn/"; request.ServicePoint.Expect100Continue = false; request.ContentType = "application/x-www-form-urlencoded"; request.AutomaticDecompression = System.Net.DecompressionMethods.GZip; return request; } private string GetHtml(System.Net.HttpWebResponse response) { System.IO.Stream rsm = response.GetResponseStream(); System.IO.StreamReader sr = new System.IO.StreamReader(rsm, System.Text.Encoding.UTF8); string html = sr.ReadToEnd(); sr.Close(); rsm.Close(); return html; } private string UploadFile(string path, string fid, string uid, string hash) { string posturl = "http://www.aippt.cn/misc.php?mod=swfupload&action=swfupload&operation=upload&fid=" + fid; System.Net.HttpWebRequest request = this.CreateHttp(posturl); string boundary = "----------haveggoodday343450"; request.ContentType = "multipart/form-data; boundary=" + boundary; request.UserAgent = "Shockwave Flash"; request.CookieContainer = new System.Net.CookieContainer(); request.CookieContainer.Add(this.cookie); Dictionary<string, string> dic = new Dictionary<string, string>(); dic.Add("Filename", System.IO.Path.GetFileName(path)); dic.Add("uid", uid); dic.Add("hash", hash); dic.Add("Upload", "Submit Query"); dic.Add("filetype", System.IO.Path.GetExtension(path)); StringBuilder sb = new StringBuilder(); foreach (KeyValuePair<string, string> kv in dic) { sb.Append("--").Append(boundary).Append("\r\n").Append("Content-Disposition: form-data; name=\"" + kv.Key + "\"\r\n\r\n").Append(ed(kv.Value)).Append("\r\n"); } sb.Append("--").Append(boundary).Append("\r\nContent-Disposition: form-data; name=\"Filedata\"; filename=\"").Append(System.IO.Path.GetFileName(path)).Append("\"\r\nContent-Type: application/octet-stream\r\n\r\n"); byte[] bt1 = System.Text.Encoding.UTF8.GetBytes(sb.ToString()); System.IO.FileStream fs = new System.IO.FileStream(path, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read); byte[] bt2 = new byte[fs.Length]; fs.Read(bt2, 0, Convert.ToInt32(fs.Length)); byte[] bt3 = System.Text.Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n"); byte[] bt = new byte[bt1.Length + bt2.Length + bt3.Length]; bt1.CopyTo(bt, 0); bt2.CopyTo(bt, bt1.Length); bt3.CopyTo(bt, bt1.Length + bt2.Length); fs.Close(); request.ContentLength = bt.Length; System.IO.Stream sm = request.GetRequestStream(); sm.Write(bt, 0, bt.Length); sm.Close(); System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse(); string html = this.GetHtml(response); if (System.Text.RegularExpressions.Regex.IsMatch(html, "^\\d+$")) { return html; } else throw new Exception("上传文件失败" + html); } }}