多说-社会化评论系统 完整实例源码下载

【核心代码】

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;

namespace DuoShuo.SDK.Partial
{
    /// <summary>
    /// 多说POST请求的帮助类，主要解释了array参数的拼接格式和JWT的设置
    /// </summary>
    /// <author>
    /// Parry
    /// Mail: qiupengyuan@gmail.com
    /// Blog: http://www.cnblogs.com/parry
    /// </author>
    public class DuoShuoHelper
    {
        #region POST数据

        /// <summary>
        /// POST数据到多说的API接口
        /// </summary>
        /// <summary>http://dev.duoshuo.com/docs/51435552047fe92f490225de</summary>
        /// <param name="apiUrl">接口的URL，如http://api.duoshuo.com/users/import.json</param>
        /// <param name="prePostData">不包含array参数的前置数据，类似：short_name=当前站点注册的多说二级域名&secret=站点多说密钥</param>
        /// <param name="arrayName">array形式的参数的名称，如users</param>
        /// <param name="arrayPostData">array形式的参数数据</param>
        /// <returns>接口返回的字符串</returns>
        /// <example>
        /// 注意array参数，在.NET下可以使用HashTable或者Dictionary实现
        /// 如：
        /// Dictionary<string, object> arrayPostData = new Dictionary<string, object>();
        /// arrayPostData.Add("user_key", 1);
        /// arrayPostData.Add("name", "Parry");
        /// arrayPostData.Add("role", "user");
        /// arrayPostData.Add("avatar_url", "");
        /// arrayPostData.Add("url", "");
        /// arrayPostData.Add("email", "");
        /// arrayPostData.Add("created_at", DateTime.Now.ToString("yyyy-mm-dd hh:MM:ss"));
        /// </example>
        /// <remarks>注意：此方法只处理了一个arrayPostData的情况，多个数组的形式请自行修改</remarks>
        public string HttpPostData(string apiUrl, string prePostData, string arrayName, Dictionary<string, object> arrayPostData)
        {
            var webRequest = WebRequest.Create(apiUrl) as HttpWebRequest;
            if (webRequest != null)
            {
                webRequest.Method = "post";
                webRequest.ContentType = "application/x-www-form-urlencoded";

                //postData赋值
                var postData = prePostData   "&"   string.Join("&", arrayPostData.Select(keyValuePair => string.Format("{0}[0][{1}]={2}", arrayName, keyValuePair.Key, keyValuePair.Value)).ToArray());

                ////使用非LINQ实现postData赋值
                //var listJoinArrayParamemter = new List<string>();
                //foreach (KeyValuePair<string, object> keyValuePair in arrayPostData)
                //{
                //    listJoinArrayParamemter.Add(string.Format("users[0][{0}]={1}", keyValuePair.Key, keyValuePair.Value));
                //}
                //var postData = prePostData   "&"   string.Join("&", listJoinArrayParamemter.ToArray());

                using (var sw = new StreamWriter(webRequest.GetRequestStream()))
                {
                    sw.Write(postData);
                }

                using (var response = webRequest.GetResponse())
                {
                    var stream = response.GetResponseStream();
                    if (stream == null) return string.Empty;
                    using (var sr = new StreamReader(stream))
                    {
                        return sr.ReadToEnd();
                    }
                }
            }
            return string.Empty;
        }

        #endregion

        #region 多说本地身份说明(JWT)

        /// <summary>
        /// 设置多说本地身份说明(JWT)
        /// </summary>
        /// <summary>http://dev.duoshuo.com/docs/501e6ce1cff715f71800000d</summary>
        /// <param name="secretKey">站点多说密钥</param>
        /// <param name="shortName">当前站点注册的多说二级域名</param>
        /// <param name="userKey">用户在当前站点中对应的唯一标示，通常是用户ID</param>
        /// <param name="name">用户在当前网站的用户名</param>
        public void SetLocalJwt(string secretKey, string shortName, string userKey, string name)
        {
            var array = new Dictionary<string, object>
            {
                {"short_name", shortName},
                {"user_key", userKey},
                {"name", name}
            };
            string token = JsonWebToken.Encode(array, secretKey, JwtHashAlgorithm.HS256);
            //cookie设置了一年过期
            var cookie = new HttpCookie("duoshuo_token") { Value = token, Expires = DateTime.Now.AddDays(365) };
            HttpContext.Current.Response.Cookies.Add(cookie);
        }

        #endregion

    }
}