/// <summary>
/// 执行接口方法
/// 传入参数列表，比如接口名字，format形式等
/// </summary>
/// <param name="paras">参数列表</param>
/// <returns>服务器响应数据</returns>
public string CallMethod(List<APIParameter> paras)
{
APIValidation av = new APIValidation();
string responseData = "";
string session_key = av.GetSessionKey();
if (session_key == "" || paras == null || paras.Count == 0)
return "";
paras.Add(new APIParameter("api_key", APIConfig.ApiKey));
paras.Add(new APIParameter("call_id", DateTime.Now.Millisecond.ToString()));
paras.Add(new APIParameter("v", "1.0"));
paras.Add(new APIParameter("session_key", session_key));
paras.Add(new APIParameter("format", APIConfig.Format));
string strSig = av.CalSig(paras);
if (strSig == "")
return "";
paras.Add(new APIParameter("sig", strSig));
responseData = new SyncHttp().HttpPost(APIConfig.RenRenAPIURL, HttpUtil.GetQueryFromParas(paras));
return responseData;
}
/// <summary>
/// 获取Access Token,
/// 通过第一步返回的URL获得参数Code的值，就为Authorization Code
/// </summary>
/// <returns>返回获得的Access Token</returns>
public string GetAccessToken()
{
string accessToken = "";
try
{
if (System.Web.HttpContext.Current.Session["accessToken"] == null)
{
string authorizationCode = System.Web.HttpContext.Current.Request["code"] ?? "";
if (authorizationCode != "")
{
List<APIParameter> paras = new List<APIParameter>() {
new APIParameter("grant_type","authorization_code"),
new APIParameter("code",authorizationCode),
new APIParameter("client_id",APIConfig.ApiKey),
new APIParameter("client_secret",APIConfig.SecretKey),
new APIParameter("redirect_uri",APIConfig.CallBackURL)
};
string requestUrl = HttpUtil.AddParametersToURL(APIConfig.AccessURL, paras);
string content = new SyncHttp().HttpPost(requestUrl, "");
JObject jo = JObject.Parse(content);
accessToken = jo["access_token"].ToString();
System.Web.HttpContext.Current.Session["accessToken"] = accessToken;
}
}
else
{
accessToken = System.Web.HttpContext.Current.Session["accessToken"] as string;
}
}
catch
{
accessToken = "";
}
// 由于获得Json字符串通过JSON.NET获取之后，还是以字符串形式存在，形如“xxxxx”，包括双引号
// 所以必须替换掉双引号
accessToken = accessToken.Replace("\"", "");
return accessToken;
}
/// <summary>
/// 获得Session key
/// </summary>
/// <returns>返回Session key</returns>
public string GetSessionKey()
{
string sessionKey = "";
// 首先从session中读取，如果不存在再重新获取。
if (System.Web.HttpContext.Current.Session["accessToken"] == null)
{
string accessToken = GetAccessToken();
if (accessToken == "")
return "";
try
{
accessToken = accessToken.Replace("\"", "");
List<APIParameter> paras = new List<APIParameter>() {
new APIParameter("oauth_token",accessToken)
};
string requestUrl = HttpUtil.AddParametersToURL(APIConfig.SessionURL, paras);
string content = new SyncHttp().HttpPost(requestUrl, "");
JObject jo = JObject.Parse(content);
sessionKey = jo["renren_token"]["session_key"].ToString();
System.Web.HttpContext.Current.Session["sessionKey"] = sessionKey;
}
catch
{
sessionKey = "";
}
}
else
{
sessionKey = System.Web.HttpContext.Current.Session["sessionKey"] as string;
}
// 由于获得Json字符串通过JSON.NET获取之后，还是以字符串形式存在，形如“xxxxx”，包括双引号
// 所以必须替换掉双引号
sessionKey = sessionKey.Replace("\"", "");
return sessionKey;
}
