OAuth/Sina/SinaApi.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Web;
using System.Xml;
using System.IO;

namespace OAuth.Sina
{
    public class SinaApi
    {
        private string basicApiUrl = "http://api.t.sina.com.cn/";

        /// <summary>
        /// 连接新浪微博 
        /// </summary>
        public void ConnectSina()
        {
            HttpGet httpRequest = HttpRequestFactory.CreateHttpRequest(Method.GET) as HttpGet;
            httpRequest.GetRequestToken();
            string url = httpRequest.GetAuthorizationUrl();
            HttpContext.Current.Session["sina_token"] = httpRequest.Token;
            HttpContext.Current.Session["sina_token_secret"] = httpRequest.TokenSecret;
            HttpContext.Current.Response.Redirect(url + "&oauth_callback=" + HttpContext.Current.Server.UrlEncode(SinaConfig.CallBackURI) + "");
        }
        /// <summary>
        /// 退出微博 
        /// </summary>
        public void DisConnectSina()
        {
            HttpContext.Current.Session["sina_token"] = null;
            HttpContext.Current.Session["sina_token_secret"] = null;
            HttpContext.Current.Session.Abandon();
        }
        /// <summary>
        /// 获取token 
        /// </summary>
        /// <param name="oauth_verifier"></param>
        public void getAccessToken(string oauth_verifier)
        {
            if (!string.IsNullOrEmpty(oauth_verifier))
            {
                HttpGet httpRequest = HttpRequestFactory.CreateHttpRequest(Method.GET) as HttpGet;
                httpRequest.Token = HttpContext.Current.Session["sina_token"].ToString();
                httpRequest.TokenSecret = HttpContext.Current.Session["sina_token_secret"].ToString();
                httpRequest.Verifier = oauth_verifier;
                httpRequest.GetAccessToken();
                HttpContext.Current.Session["sina_token"] = httpRequest.Token;
                HttpContext.Current.Session["sina_token_secret"] = httpRequest.TokenSecret;
            }
        }
        /// <summary>
        /// Oauth调用新浪微博接口，返回xml数据格式的字符串  
        /// </summary>
        /// <param name="methodname"></param>
        /// <param name="postData"></param>
        /// <returns></returns>
        public string GetSinaResponse(string methodname, Method method, string postData)
        {