600 lines
22 KiB
C#
600 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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namespace Learun.Application.WeChat
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{
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public class HttpHelper
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{
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public bool Debug { get; set; }
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public CookieCollection Cookies
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{
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get { return _cookies; }
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}
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public void ClearCookies()
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{
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_cookies = new CookieCollection();
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}
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CookieCollection _cookies = new CookieCollection();
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private static readonly string DefaultUserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
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/// <summary>
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/// 创建GET方式的HTTP请求
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/// </summary>
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/// <param name="url">请求的URL</param>
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/// <param name="timeout">请求的超时时间</param>
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/// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
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/// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
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/// <returns></returns>
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public HttpWebResponse CreateGetHttpResponse(string url, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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if (Debug)
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{
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Console.Write("Start Get Url:{0} ", url);
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}
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if (string.IsNullOrEmpty(url))
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{
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throw new ArgumentNullException("url");
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}
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HttpWebRequest request;
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "GET";
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request.Headers["Pragma"] = "no-cache";
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request.Accept = "text/html, application/xhtml+xml, */*";
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request.Headers["Accept-Language"] = "en-US,en;q=0.5";
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request.ContentType = "application/x-www-form-urlencoded";
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request.UserAgent = DefaultUserAgent;
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request.Referer = Referer;
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if (headers != null)
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{
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foreach (var header in headers)
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{
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request.Headers.Add(header.Key, header.Value);
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}
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}
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if (!string.IsNullOrEmpty(userAgent))
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{
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request.UserAgent = userAgent;
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}
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if (timeout.HasValue)
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{
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request.Timeout = timeout.Value * 1000;
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}
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if (cookies != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(cookies);
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}
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else
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(Cookies);
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}
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var v = request.GetResponse() as HttpWebResponse;
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("http://" + new Uri(url).Host)));
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("https://" + new Uri(url).Host)));
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Cookies.Add(v.Cookies);
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if (Debug)
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{
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Console.WriteLine("OK");
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}
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return v;
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}
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/// <summary>
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/// 创建POST方式的HTTP请求
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/// </summary>
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/// <param name="url">请求的URL</param>
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/// <param name="parameters">随同请求POST的参数名称及参数值字典</param>
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/// <param name="timeout">请求的超时时间</param>
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/// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
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/// <param name="requestEncoding">发送HTTP请求时所用的编码</param>
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/// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
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/// <returns></returns>
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public HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, Encoding requestEncoding, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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if (Debug)
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{
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Console.Write("Start Post Url:{0} ", url);
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foreach (KeyValuePair<string, string> keyValuePair in parameters)
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{
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Console.Write(",{0}:{1}", keyValuePair.Key, keyValuePair.Value);
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}
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}
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if (string.IsNullOrEmpty(url))
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{
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throw new ArgumentNullException("url");
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}
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if (requestEncoding == null)
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{
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throw new ArgumentNullException("requestEncoding");
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}
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HttpWebRequest request = null;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "POST";
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request.Accept = "text/html, application/xhtml+xml, application/json, text/javascript, */*; q=0.01";
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request.Referer = Referer;
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request.Headers["Accept-Language"] = "en-US,en;q=0.5";
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request.UserAgent = DefaultUserAgent;
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request.ContentType = "application/x-www-form-urlencoded";
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request.Headers["Pragma"] = "no-cache";
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if (headers != null)
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{
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foreach (var header in headers)
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{
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request.Headers.Add(header.Key, header.Value);
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}
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}
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if (cookies != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(cookies);
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}
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else
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(Cookies);
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}
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if (!string.IsNullOrEmpty(userAgent))
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{
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request.UserAgent = userAgent;
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}
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else
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{
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request.UserAgent = DefaultUserAgent;
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}
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if (timeout.HasValue)
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{
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request.Timeout = timeout.Value * 1000;
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}
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request.Expect = string.Empty;
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//如果需要POST数据
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if (!(parameters == null || parameters.Count == 0))
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{
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var buffer = CraeteParameter(parameters);
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byte[] data = requestEncoding.GetBytes(buffer.ToString());
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using (Stream stream = request.GetRequestStream())
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{
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stream.Write(data, 0, data.Length);
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}
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}
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var v = request.GetResponse() as HttpWebResponse;
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("http://" + new Uri(url).Host)));
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("https://" + new Uri(url).Host)));
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Cookies.Add(v.Cookies);
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if (Debug)
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{
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Console.WriteLine("OK");
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}
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return v;
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}
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/// <summary>
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/// 创建POST方式的HTTP请求
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/// </summary>
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/// <param name="url">请求的URL</param>
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/// <param name="parameters">随同请求POST的参数名称及参数值字典</param>
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/// <param name="timeout">请求的超时时间</param>
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/// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
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/// <param name="requestEncoding">发送HTTP请求时所用的编码</param>
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/// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
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/// <returns></returns>
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public HttpWebResponse CreatePostHttpResponse(string url, string parameters, Encoding requestEncoding, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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if (Debug)
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{
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Console.Write("Start Post Url:{0} ,parameters:{1} ", url, parameters);
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}
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if (string.IsNullOrEmpty(url))
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{
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throw new ArgumentNullException("url");
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}
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if (requestEncoding == null)
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{
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throw new ArgumentNullException("requestEncoding");
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}
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HttpWebRequest request = null;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "POST";
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request.Headers.Add("Accept-Language", "zh-CN,en-GB;q=0.5");
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request.Method = "POST";
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request.Accept = "text/html, application/xhtml+xml, */*";
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request.Referer = Referer;
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request.Headers["Accept-Language"] = "en-US,en;q=0.5";
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request.UserAgent = DefaultUserAgent;
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request.ContentType = "application/x-www-form-urlencoded";
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request.Headers["Pragma"] = "no-cache";
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if (cookies != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(cookies);
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}
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else
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(Cookies);
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}
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if (headers != null)
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{
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foreach (var header in headers)
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{
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request.Headers.Add(header.Key, header.Value);
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}
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}
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if (!string.IsNullOrEmpty(userAgent))
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{
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request.UserAgent = userAgent;
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}
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else
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{
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request.UserAgent = DefaultUserAgent;
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}
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if (timeout.HasValue)
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{
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request.Timeout = timeout.Value * 1000;
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}
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request.Expect = string.Empty;
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//如果需要POST数据
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if (!string.IsNullOrEmpty(parameters))
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{
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byte[] data = requestEncoding.GetBytes(parameters);
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using (Stream stream = request.GetRequestStream())
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{
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stream.Write(data, 0, data.Length);
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}
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}
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var v = request.GetResponse() as HttpWebResponse;
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("http://" + new Uri(url).Host)));
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("https://" + new Uri(url).Host)));
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Cookies.Add(v.Cookies);
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if (Debug)
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{
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Console.WriteLine("OK");
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}
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return v;
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}
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/// <summary>
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/// 创建POST方式的HTTP请求
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/// </summary>
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/// <param name="url">请求的URL</param>
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/// <param name="parameters">随同请求POST的参数名称及参数值字典</param>
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/// <param name="timeout">请求的超时时间</param>
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/// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
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/// <param name="requestEncoding">发送HTTP请求时所用的编码</param>
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/// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
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/// <returns></returns>
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public HttpWebResponse CreatePostFileHttpResponse(string url, string filePath, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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if (Debug)
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{
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Console.Write("Start Post Url:{0} ", url);
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}
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if (string.IsNullOrEmpty(url))
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{
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throw new ArgumentNullException("url");
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}
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HttpWebRequest request = null;
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//如果是发送HTTPS请求
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if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
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{
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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request = WebRequest.Create(url) as HttpWebRequest;
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request.ProtocolVersion = HttpVersion.Version10;
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}
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else
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{
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request = WebRequest.Create(url) as HttpWebRequest;
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}
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request.Method = "POST";
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request.Accept = "text/html, application/xhtml+xml, application/json, text/javascript, */*; q=0.01";
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request.Referer = Referer;
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request.Headers["Accept-Language"] = "en-US,en;q=0.5";
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request.UserAgent = DefaultUserAgent;
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request.ContentType = "application/x-www-form-urlencoded";
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request.Headers["Pragma"] = "no-cache";
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if (headers != null)
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{
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foreach (var header in headers)
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{
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request.Headers.Add(header.Key, header.Value);
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}
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}
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if (cookies != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(cookies);
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}
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else
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(Cookies);
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}
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if (!string.IsNullOrEmpty(userAgent))
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{
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request.UserAgent = userAgent;
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}
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else
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{
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request.UserAgent = DefaultUserAgent;
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}
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if (timeout.HasValue)
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{
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request.Timeout = timeout.Value * 1000;
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}
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request.Expect = string.Empty;
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//如果需要POST数据
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if (!string.IsNullOrEmpty(filePath))
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
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{
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BinaryReader r = new BinaryReader(fs);
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//时间戳
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string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x");
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byte[] boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + strBoundary + "\r\n");
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//请求头部信息
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StringBuilder sb = new StringBuilder();
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sb.Append("--");
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sb.Append(strBoundary);
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sb.Append("\r\n");
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sb.Append("Content-Disposition: form-data; name=\"");
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sb.Append("file");
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sb.Append("\"; filename=\"");
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sb.Append(fs.Name);
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sb.Append("\"");
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sb.Append("\r\n");
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sb.Append("Content-Type: ");
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sb.Append("application/octet-stream");
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sb.Append("\r\n");
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sb.Append("\r\n");
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string strPostHeader = sb.ToString();
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byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);
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request.ContentType = "multipart/form-data; boundary=" + strBoundary;
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long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;
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request.ContentLength = length;
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//开始上传时间
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DateTime startTime = DateTime.Now;
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byte[] filecontent = new byte[fs.Length];
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fs.Read(filecontent, 0, filecontent.Length);
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using (Stream stream = request.GetRequestStream())
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{
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//发送请求头部消息
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stream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
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stream.Write(filecontent, 0, filecontent.Length);
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//添加尾部的时间戳
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stream.Write(boundaryBytes, 0, boundaryBytes.Length);
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}
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}
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}
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var v = request.GetResponse() as HttpWebResponse;
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("http://" + new Uri(url).Host)));
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Cookies.Add(request.CookieContainer.GetCookies(new Uri("https://" + new Uri(url).Host)));
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Cookies.Add(v.Cookies);
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if (Debug)
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{
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Console.WriteLine("OK");
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}
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return v;
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}
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public static string CraeteParameter(IDictionary<string, string> parameters)
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{
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StringBuilder buffer = new StringBuilder();
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foreach (string key in parameters.Keys)
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{
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buffer.AppendFormat("&{0}={1}", key, parameters[key]);
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}
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return buffer.ToString().TrimStart('&');
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}
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private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
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{
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return true; //总是接受
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}
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public string Post(string url, IDictionary<string, string> parameters, Encoding requestEncoding, Encoding responseEncoding, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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HttpWebResponse response = CreatePostHttpResponse(url, parameters, requestEncoding, timeout, userAgent, cookies, Referer, headers);
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try
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{
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using (StreamReader reader = new StreamReader(response.GetResponseStream(), responseEncoding))
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{
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return reader.ReadToEnd();
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}
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}
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catch (Exception)
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{
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return null;
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}
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}
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public string Post(string url, string parameters, Encoding requestEncoding, Encoding responseEncoding, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
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{
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HttpWebResponse response = CreatePostHttpResponse(url, parameters, requestEncoding, timeout, userAgent, cookies, Referer, headers);
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try
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{
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using (StreamReader reader = new StreamReader(response.GetResponseStream(), responseEncoding))
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{
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return reader.ReadToEnd();
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}
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}
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catch (Exception)
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{
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return null;
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}
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}
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public string PostFile(string url, string filePath, Encoding responseEncoding,
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int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "",
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Dictionary<string, string> headers = null)
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{
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HttpWebResponse response = CreatePostFileHttpResponse(url, filePath, timeout, userAgent, cookies, Referer,
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headers);
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try
|
||
{
|
||
using (StreamReader reader = new StreamReader(response.GetResponseStream(), responseEncoding))
|
||
{
|
||
return reader.ReadToEnd();
|
||
}
|
||
}
|
||
catch (Exception)
|
||
{
|
||
return null;
|
||
}
|
||
}
|
||
|
||
public string Get(string url, Encoding responseEncoding, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
|
||
{
|
||
HttpWebResponse response = CreateGetHttpResponse(url, timeout, userAgent, cookies, Referer, headers);
|
||
|
||
try
|
||
{
|
||
using (StreamReader reader = new StreamReader(response.GetResponseStream(), responseEncoding))
|
||
{
|
||
return reader.ReadToEnd();
|
||
}
|
||
}
|
||
catch (Exception)
|
||
{
|
||
return null;
|
||
}
|
||
}
|
||
|
||
public byte[] GetFile(string url, out Dictionary<string, string> header, int? timeout = 300, string userAgent = "", CookieCollection cookies = null, string Referer = "", Dictionary<string, string> headers = null)
|
||
{
|
||
HttpWebResponse response = CreateGetHttpResponse(url, timeout, userAgent, cookies, Referer, headers);
|
||
|
||
header = new Dictionary<string, string>();
|
||
|
||
foreach (string key in response.Headers.AllKeys)
|
||
{
|
||
header.Add(key, response.Headers[key]);
|
||
}
|
||
|
||
try
|
||
{
|
||
System.IO.Stream st = response.GetResponseStream();
|
||
|
||
byte[] by = new byte[response.ContentLength];
|
||
|
||
st.Read(by, 0, by.Length);
|
||
|
||
st.Close();
|
||
|
||
return by;
|
||
}
|
||
catch (Exception)
|
||
{
|
||
return null;
|
||
}
|
||
}
|
||
}
|
||
}
|