/// <summary> /// 执行API调用,返回结果数组 /// </summary> /// <param name="script_name">调用的API方法,比如/v3/user/get_info, 参考 http://wiki.open.qq.com/wiki/API_V3.0%E6%96%87%E6%A1%A3 </param> /// <param name="param">调用API时带的参数</param> /// <param name="method">请求方法 post / get</param> /// <param name="protocol">协议类型 http / https </param> /// <returns>返回结果数组</returns> public RstArray Api(string script_name, Dictionary <string, string> param, string method, string protocol) { RstArray result_array = new RstArray(); // 检查 openid 是否为空 if (string.IsNullOrEmpty(param["openid"])) { result_array.Msg = "openid is empty"; result_array.Ret = OPENAPI_ERROR_REQUIRED_PARAMETER_EMPTY; return(result_array); } // 检查 openid 是否合法 if (!IsOpenId(param["openid"])) { result_array.Msg = "openid is invalid"; result_array.Ret = OPENAPI_ERROR_REQUIRED_PARAMETER_INVALID; return(result_array); } // 无需传sig, 会自动生成 if (param.ContainsKey("sig")) { param.Remove("sig"); } // 添加一些参数 param["appid"] = appid.ToString(); param["format"] = format; // 生成签名 string secret = appkey + "&"; string sig = SnsSigCheck.MakeSig(method, script_name, param, secret); param.Add("sig", sig); string url = protocol + "://" + server_name + script_name; // 增加cookie Dictionary <string, string> cookie = new Dictionary <string, string>(); //记录接口调用开始时间 long start_time = SnsStat.GetTime(); //通过调用以下方法,可以打印出最终发送到openapi服务器的请求参数以及url,不打印可以注释 PrintRequest(url, param, method); // 发起请求 result_array = SnsNetWork.MakeRequest(url, param, cookie, method, protocol); if (result_array.Ret != 0) { result_array.Ret += OPENAPI_ERROR_HTPP; return(result_array); } //解析返回结果的返回码 string stat_ret = ""; try { if (this.format == "xml") { XmlDocument xml = new XmlDocument(); xml.LoadXml(result_array.Msg); stat_ret = xml.LastChild["ret"].InnerText.ToString(); } else { JavaScriptSerializer serializer = new JavaScriptSerializer(); RstArray json_obj = new RstArray(); json_obj = serializer.Deserialize <RstArray>(result_array.Msg); stat_ret = json_obj.Ret.ToString(); } } catch (Exception e) { result_array.Msg = e.Message; // 远程返回的不是 json或者xml 格式, 说明返回包有问题 result_array.Ret += OPENAPI_ERROR_RESPONSE_DATA_INVALID; return(result_array); } // 统计上报 if (is_stat) { Dictionary <string, string> stat_params = new Dictionary <string, string>(); stat_params["appid"] = appid.ToString(); stat_params["pf"] = param["pf"]; stat_params["rc"] = stat_ret; stat_params["svr_name"] = server_name; stat_params["interface"] = script_name; stat_params["protocol"] = protocol; stat_params["method"] = method; SnsStat.StatReport(stat_url, start_time, stat_params); } //通过调用以下方法,可以打印出调用openapi请求的返回码以及错误信息,不打印可以注释 ///PrintRespond(result_array); return(result_array); }
/// <summary> /// 执行一个 HTTP 请求 /// </summary> /// <param name="url">执行请求的URL</param> /// <param name="param">表单参数</param> /// <param name="cookie">cookie参数 </param> /// <param name="method">请求方法 post / get</param> /// <param name="protocol"> http协议类型 http / https</param> /// <returns>返回结果数组</returns> static public RstArray MakeRequest(string url, Dictionary <string, string> param, Dictionary <string, string> cookie, string method, string protocol) { string query_string = MakeQueryString(param); string cookie_string = MakeCookieString(cookie); //结果 RstArray result = new RstArray(); //请求类 HttpWebRequest request = null; //请求响应类 HttpWebResponse response = null; //响应结果读取类 StreamReader reader = null; //http连接数限制默认为2,多线程情况下可以增加该连接数,非多线程情况下可以注释掉此行代码 ServicePointManager.DefaultConnectionLimit = 500; try { if (method.Equals("get", StringComparison.OrdinalIgnoreCase)) { if (url.IndexOf("?") > 0) { url = url + "&" + query_string; } else { url = url + "?" + query_string; } //如果是发送HTTPS请求 if (protocol.Equals("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version10; } else { request = WebRequest.Create(url) as HttpWebRequest; } request.Method = "GET"; request.Timeout = 3000; } else { //如果是发送HTTPS请求 if (protocol.Equals("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version10; } else { request = WebRequest.Create(url) as HttpWebRequest; } //去掉“Expect: 100-Continue”请求头,不然会引起post(417) expectation failed ServicePointManager.Expect100Continue = false; request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.Timeout = 3000; //POST数据 byte[] data = Encoding.UTF8.GetBytes(query_string); using (Stream stream = request.GetRequestStream()) { stream.Write(data, 0, data.Length); } } //cookie if (cookie_string != null) { request.Headers.Add("Cookie", cookie_string); } //response response = (HttpWebResponse)request.GetResponse(); reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); //return result.Msg = reader.ReadToEnd(); result.Ret = 0; } catch (Exception e) { result.Msg = e.Message; result.Ret = ERROR_SNSNETWORK_HTTP; } finally { if (request != null) { request.Abort(); } if (reader != null) { reader.Close(); reader.Dispose(); } if (response != null) { response.Close(); } } return(result); }
/// <summary> /// 打印出返回结果的内容,当API中的这个函数的注释放开将会被调用。 /// </summary> /// <param name="RstArray">待打印的array</param> static private void PrintRespond(RstArray result_array) { HttpContext.Current.Response.Write("<br>============= respond info ================<br>"); HttpContext.Current.Response.Write("ret = " + result_array.Ret + "<br>msg = " + result_array.Msg + "<br>"); }
/// <summary> /// 执行一个 HTTP 请求,以post方式,multipart/form-data的编码类型上传文件 /// </summary> /// <param name="url">执行请求的URL</param> /// <param name="param">表单参数</param> /// <param name="cookie">cookie参数 </param> /// <param name="protocol"> http协议类型 http / https</param> /// <param name="file_name"> 文件名,文件相应参数的参数名,例如/v3/t/add_pic_t中的 "pic" </param> /// <param name="file_path"> 文件的路径 </param> /// <returns>返回结果数组</returns> public static RstArray MutilpartPostFile(string url, Dictionary <string, string> param, Dictionary <string, string> cookie, string protocol, string file_name, string file_path) { //结果 RstArray result = new RstArray(); //请求类 HttpWebRequest request = null; //包体填充类 MemoryStream mem_stream = null; Stream req_stream = null; //请求响应类 HttpWebResponse response = null; //文件流 FileStream file_stream = null; //响应结果读取类 StreamReader reader = null; //http连接数限制默认为2,多线程情况下可以增加该连接数,非多线程情况下可以注释掉此行代码 ServicePointManager.DefaultConnectionLimit = 500; try { //https请求 if (protocol.Equals("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version10; } else { request = WebRequest.Create(url) as HttpWebRequest; } // 设置属性 request.Method = "POST"; request.Timeout = 3000; //cookie string cookie_string = MakeCookieString(cookie); if (cookie_string != null) { request.Headers.Add("Cookie", cookie_string); } //去掉“Expect: 100-Continue”请求头,不然会引起post(417) expectation failed ServicePointManager.Expect100Continue = false; //设置请求体 mem_stream = new MemoryStream(); //边界符 string boundary = "---------------" + DateTime.Now.Ticks.ToString("x"); byte[] begin_boundary = Encoding.UTF8.GetBytes("--" + boundary + "\r\n"); byte[] end_boundary = Encoding.UTF8.GetBytes("--" + boundary + "--\r\n"); request.ContentType = "multipart/form-data; boundary=" + boundary; //开头 mem_stream.Write(begin_boundary, 0, begin_boundary.Length); //参数 string param_format = "Content-Disposition: form-data; name=\"{0}\"" + "\r\n\r\n{1}\r\n--" + boundary + "\r\n"; StringBuilder param_string = new StringBuilder(); foreach (string key in param.Keys) { param_string.AppendFormat(param_format, key, param[key]); } byte[] param_byte = Encoding.UTF8.GetBytes(param_string.ToString()); mem_stream.Write(param_byte, 0, param_byte.Length); //文件 file_stream = new FileStream(file_path, FileMode.Open, FileAccess.Read); string file_format = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n" + "Content-Type: application/octet-stream\r\n\r\n"; string file_string = string.Format(file_format, file_name, file_path); byte[] file_byte = Encoding.UTF8.GetBytes(file_string); mem_stream.Write(file_byte, 0, file_byte.Length); byte[] buffer = new byte[1024]; int bytes; while ((bytes = file_stream.Read(buffer, 0, buffer.Length)) != 0) { mem_stream.Write(buffer, 0, bytes); } //结尾 mem_stream.Write(end_boundary, 0, end_boundary.Length); request.ContentLength = mem_stream.Length; req_stream = request.GetRequestStream(); mem_stream.Position = 0; byte[] temp_buffer = new byte[mem_stream.Length]; mem_stream.Read(temp_buffer, 0, temp_buffer.Length); req_stream.Write(temp_buffer, 0, temp_buffer.Length); //响应 response = (HttpWebResponse)request.GetResponse(); reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); //return result.Msg = reader.ReadToEnd(); result.Ret = 0; } catch (Exception e) { result.Msg = e.Message; result.Ret = ERROR_SNSNETWORK_HTTP; } finally { if (request != null) { request.Abort(); } if (response != null) { response.Close(); } if (reader != null) { reader.Close(); reader.Dispose(); } if (file_stream != null) { file_stream.Close(); file_stream.Dispose(); } if (mem_stream != null) { mem_stream.Close(); mem_stream.Dispose(); } if (req_stream != null) { req_stream.Close(); req_stream.Dispose(); } } return(result); }