.NET代码用于短信发送

Question

大家好。

我正在编写一些代码，通过Zeep Mobile（http://zeepmobile.com/developers/）发送/接收短信。

我已经查看了他们的谷歌小组，甚至联系过他们的支持团队，但是他们没有很好地回复我，现在我真的很盲目。

我必须与他们集成（工作要求），但我不确定我的代码为什么不起作用。所以，我想知道是否有人有任何C# .Net代码，他们不介意分享，以便我可以将其集成到我的应用程序中。

当然，这完全取决于您是否具有Zeep的经验。如果您希望我发布我的代码，我也可以这样做。请告诉我。

感谢您的帮助，我非常感激。

**

编辑：我在此处添加了源代码，以防有人能够帮助解决！

**

请原谅那些粗糙的代码。这只是我随手编写的内容，以测试Zeep，我希望有人可以尝试一下。（.Net 3.5控制台应用程序，以防您想要构建它）。

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Net.Security;
using System.Web;
using System.Web.Handlers;
using System.IO;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;


namespace ConsoleApplication1
{


    class Program
    {
        public static string API_KEY = "MY_API_KEY";
        public static string SECRET_ACCESS_KEY = "MY_SECRET_KEY";
        public static string PATTERN_RFC1123 = "ddd, dd MMM yyyy HH:mm:ss " + "GMT";

        static void Main(string[] args)
        {
            // URL for sending message - 
            //      send_message = "https://api.zeepmobile.com/messaging/2008-07-14/send_message";
            //      blast_message = "https://api.zeepmobile.com/messaging/2008-07-14/blast_message";
            string apiurl = "https://api.zeepmobile.com/messaging/2008-07-14/blast_message";


            // FORMAT must be Sun, 06 Nov 1994 08:49:37 GMT
            string http_date = DateTime.UtcNow.ToString("r");
            // Text to send
            string body = HttpUtility.UrlEncode("Test message.", System.Text.Encoding.UTF8);
            // NOTE: Use 'user_id=22&body=' instead of just 'body=' when sending a message to a user.
            // 22 is a user I have previously registered with ZEEP and is used for testing purposes.
            string parameters = "body=" + body; 
            // String that will be converted into a signature.
            string canonicalString = API_KEY + http_date + parameters;


            //------------START HASH COMPUTATION---------------------
            // Compute the Base64 HMACSHA1 value
            HMACSHA1 hmacsha1 = new HMACSHA1(SECRET_ACCESS_KEY.ToByteArray());

            // Compute the hash of the input file.
            byte[] hashValue = hmacsha1.ComputeHash(canonicalString.ToByteArray());

            String b64Mac = hashValue.ToBase64String();
            String authentication = String.Format("Zeep {0}:{1}", API_KEY, b64Mac);
            //-----------END HASH COMPUTATION------------------------


            // We are using TCPClient instead of an HTTPWebRequest because we need to manually
            // set the "Headers" such as Date, Authorization etc which cannot easily be done with HTTPWebRequest.
            Uri reqUrl = new Uri(apiurl);
            TcpClient client = new TcpClient(reqUrl.Host, reqUrl.Port);
            NetworkStream netStream = client.GetStream();
            // SSLStream is used for secure communication. ZEEP requires the use of SSL to send and SMS.
            System.Net.Security.SslStream sslStream = new System.Net.Security.SslStream(
                netStream, 
                false, 
                new System.Net.Security.RemoteCertificateValidationCallback(ValidateServerCertificate));
            sslStream.AuthenticateAsClient(reqUrl.Host);


            // POST content we are going to transmit over the SSL channel. 
            // See. http://zeepmobile.com/developers/documentation/messaging/2008-07-14/rest_api#send_message
            System.IO.StreamWriter s = new System.IO.StreamWriter(sslStream);
            s.WriteLine(String.Format("POST {0} HTTP/1.1", "/api/blast"));
            s.WriteLine(String.Format("Host: {0}", "api.zeepmobile.com"));
            s.WriteLine(String.Format("Authorization: Zeep {0}:{1}", API_KEY, b64Mac));
            s.WriteLine(String.Format("Date: {0}", http_date));
            s.WriteLine(String.Format("Content-Type: {0}", "application/x-www-form-urlencoded"));
            s.WriteLine(String.Format("Content-Length: {0}", parameters.Length));
            s.WriteLine(String.Format("{0}", parameters));
            s.Flush();


            System.IO.StreamReader r = new StreamReader(sslStream);
            string resp = r.ReadToEnd();
            Console.WriteLine(resp);
            r.Close();

        }

        // The following method is invoked by the RemoteCertificateValidationDelegate.
        // We want to make sure the SSL has no Policy errors and is safe.
        public static bool ValidateServerCertificate(
              object sender,
              X509Certificate certificate,
              X509Chain chain,
              SslPolicyErrors sslPolicyErrors)
        {
            if (sslPolicyErrors == SslPolicyErrors.None)
                return true;

            Console.WriteLine("Certificate error: {0}", sslPolicyErrors);

            // Do not allow this client to communicate with unauthenticated servers.
            return false;
        }

    }

    public static class Extensions
    {
        public static byte[] ToByteArray(this string input)
        {
            UTF8Encoding encoding = new UTF8Encoding();
            return encoding.GetBytes(input);
        }

        public static string ToBase64String(this byte[] input)
        {
            return Convert.ToBase64String(input);
        }
    }
}

错误

当我运行这段代码时，出现了以下图片中显示的错误。

- AboutDev

---

发布你的代码将真正帮助人们理解问题。 - TimothyP

谢谢TimothyP。我实际上正在编辑这篇文章，以添加代码，当你的消息出现时。我很愚蠢没有立即添加它。感谢您的反馈。 - AboutDev

Answer 1

解决方案:

好的。我昨晚一直在研究这个问题，并取得了一些进展。我使用Fiddler构造了POST消息，以查看我所写内容与服务器期望的内容之间是否存在差异。

我已经成功发送了消息并返回了HTTP 200 OK响应。请注意，这段代码还不适用于生产环境，仅用于测试和验证我能否让 Zeep 正常工作。谢谢所有回复我的人，如果你正在寻找 Zeep 代码，希望这可以帮到你。

---

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Net.Security;
using System.Web;
using System.Web.Handlers;
using System.IO;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;


namespace ConsoleApplication1
{
    class Program
    {
        public static string API_KEY = "YOUR_API_KEY_GOES_HERE! INCLUDE DASHES!";
        public static string SECRET_ACCESS_KEY = "YOUR_SECRET_KEY_GOES_HERE!";

        static void Main(string[] args)
        {
            Console.WriteLine("BLAST - \r\n\r\n");
            BlastTcpPost();

            Console.WriteLine("SEND - \r\n\r\n");
            SendTcpPost();
        }

        /// <summary>
        /// Send a BLAST to all users in your ZEEP account.
        /// </summary>
        public static void BlastTcpPost()
        {
            SendSMS(
                "https://api.zeepmobile.com/messaging/2008-07-14/blast_message",    // URL for Send_Message 
                "You are on blast",                                                 // Message to send
                string.Empty                                                        // No UserId to send.
                );
        }

        /// <summary>
        /// Send a single message to a user in your ZEEP account.
        /// </summary>
        public static void SendTcpPost()
        {
            // Note:- 22 I use for the UserId is just a user I have signed up. Yours may be different and you 
            // might want to pass that in as a parameter.

            SendSMS(
                "https://api.zeepmobile.com/messaging/2008-07-14/send_message",     // URL for Send_Message
                "You are a user...good job!",                                       // Message to send
                "22"                                                                // User Id in your system.
                );

        }

        /// <summary>
        /// Uses a TCPClient and SSLStream to perform a POST.
        /// </summary>
        /// <param name="requestUrl">URL that the POST must be directed to.</param>
        /// <param name="body">Message that is to be sent.</param>
        /// <param name="user">UserId in your Zeep System. Only required if your sending a Single Message to a User. 
        /// Otherwise, just send a string.Empty.</param>
        /// <returns>Response from the server. (although it will write the response to console)</returns>
        public static string SendSMS(string requestUrl, string body, string user)
        {
            string parameters = "";
            string requestHeaders = "";
            string responseData = "";

            // FORMAT must be Sun, 06 Nov 1994 08:49:37 GMT
            string http_date = DateTime.UtcNow.ToString("r");

            // Clean the text to send
            body = HttpUtility.UrlEncode(body, System.Text.Encoding.UTF8);

            if (user.Length > 0) parameters += "user_id=" + user + "&";
            if (body.Length > 0) parameters += "body=" + body;


            // String that will be converted into a signature.
            string canonicalString = API_KEY + http_date + parameters;


            //------------START HASH COMPUTATION---------------------
            // Compute the Base64 HMACSHA1 value
            HMACSHA1 hmacsha1 = new HMACSHA1(SECRET_ACCESS_KEY.ToByteArray());

            // Compute the hash of the input file.
            byte[] hashValue = hmacsha1.ComputeHash(canonicalString.ToByteArray());

            String b64Mac = hashValue.ToBase64String();
            String authentication = String.Format("Zeep {0}:{1}", API_KEY, b64Mac);
            //-----------END HASH COMPUTATION------------------------


            string auth = String.Format("Zeep {0}:{1}", API_KEY, b64Mac);


            System.Uri uri = new Uri(requestUrl);
            System.Net.Sockets.TcpClient client = new System.Net.Sockets.TcpClient(uri.Host, uri.Port);
            string requestMethod = "POST " + uri.LocalPath + " HTTP/1.1\r\n";

            // Set Headers for the POST message
            requestHeaders += "Host: api.zeepmobile.com\r\n";
            requestHeaders += "Authorization: " + auth + "\r\n";
            requestHeaders += "Date: " + DateTime.UtcNow.ToString("r") + "\r\n";
            requestHeaders += "Content-Type: application/x-www-form-urlencoded\r\n";
            requestHeaders += "Content-Length: " + parameters.ToByteArray().Length + "\r\n";
            requestHeaders += "\r\n";


            // Get the data to be sent as a byte array.
            Byte[] data = System.Text.Encoding.UTF8.GetBytes(requestMethod + requestHeaders + parameters + "\r\n");
            // Send the message to the connected TcpServer.
            NetworkStream stream = client.GetStream();


            // SSL Authentication is used because the Server requires https.
            System.Net.Security.SslStream sslStream = new System.Net.Security.SslStream(
                stream,
                false,
                new System.Net.Security.RemoteCertificateValidationCallback(ValidateServerCertificate));
            sslStream.AuthenticateAsClient(uri.Host);

            // Send the data over the SSL stream.
            sslStream.Write(data, 0, data.Length);
            sslStream.Flush();


            // Receive the TcpServer.response.
            for (int i = 0; i < 100; i++)
            {
                if (stream.DataAvailable)
                {
                    break;
                }
                System.Threading.Thread.Sleep(100);
            }

            Byte[] bytes = new byte[1024];
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            while (stream.DataAvailable)
            {
                int count = sslStream.Read(bytes, 0, 1024);
                if (count == 0)
                {
                    break;
                }
                sb.Append(System.Text.Encoding.UTF8.GetString(bytes, 0, count));
            }

            responseData = sb.ToString();
            Console.WriteLine(responseData);
            // Close everything.
            client.Close();

            return responseData;
        }



        // The following method is invoked by the RemoteCertificateValidationDelegate.
        // We want to make sure the SSL has no Policy errors and is safe.
        public static bool ValidateServerCertificate(
              object sender,
              X509Certificate certificate,
              X509Chain chain,
              SslPolicyErrors sslPolicyErrors)
        {
            // Somehow the cert always has PolicyErrors so I am returning true regardless.
            return true;
            //if (sslPolicyErrors == SslPolicyErrors.None)
            //    return true;

            //Console.WriteLine("Certificate error: {0}", sslPolicyErrors);

            //// Do not allow this client to communicate with unauthenticated servers.
            //return false;
        }
    }

    public static class Extensions
    {
        public static byte[] ToByteArray(this string input)
        {
            UTF8Encoding encoding = new UTF8Encoding();
            return encoding.GetBytes(input);
        }

        public static string ToBase64String(this byte[] input)
        {
            return Convert.ToBase64String(input);
        }
    }
}

- AboutDev

Answer 2

您确定需要使用TcpClient和SslStream手动在代码中实现HTTP协议并与Zeep通信吗？我建议您尝试使用HttpWebRequest对象，让.NET Framework为您处理HTTP特定的协议部分。尤其是因为您收到的错误信息似乎指向您发送的请求无法被远程服务器理解。

（在HTTP标头和实际内容之间需要额外空一行吗？我从来没有真正记住过，如果我只在正确的.NET Framework WebRequest上进行操作，我就不用担心这个了...）

祝您好运！

- peSHIr

---

感谢您的回复，peSHIr。为了回答您的问题，是的，如果您想包括像“DATE”这样的标头，您必须使用TcpClient。微软的WebRequest和HTTPWebRequest实现将不允许您设置一些标头，例如日期，并且没有覆盖它。 - AboutDev

抱歉，peSHIr，我没空回应你的另一个观点了。你是对的。标题和正文之间需要有一个空格。不幸的是，那不是解决方案。 - AboutDev

嗯，不知道在HttpWebRequest中添加特定（自定义？）标头存在限制。 - peSHIr