向FritzBox发送SOAP请求

Question

我试图使用FritzBox (无线局域网路由器)向C#发送SOAP请求。目前，我正在手工组装XML请求，因为服务器没有提供WSDL文件。

我是这样创建将XML附加到的web请求的：

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create (@"http://fritz.box:49000/igdupnp/control/WANIPConn1");
webRequest.Headers.Add (@"SOAP:Action");
webRequest.ContentType = "text/xml;charset=\"utf-8\"";
webRequest.Accept = "text/xml";
webRequest.Method = "POST";

但是在发送请求时，我得到了一个WebException：

远程服务器返回一个错误：(404)未找到。

我很确定它必须对我的URL做些什么，但我不知道如何修复它。FritzBox文档相当糟糕:-/

Answer 1

尝试这个代码它的工作，以获得外部IP

WebRequest webRequest = WebRequest.Create("http://fritz.box:49000/igdupnp/control/WANIPConn1");
        HttpWebRequest httpRequest = (HttpWebRequest)webRequest;
        httpRequest.Method = "POST";
        httpRequest.ContentType = "text/xml; charset=utf-8";
        httpRequest.Headers.Add("SOAPACTION", "urn:schemas-upnp-org:service:WANIPConnection:1#GetExternalIPAddress");
        httpRequest.ProtocolVersion = HttpVersion.Version11;
        httpRequest.Credentials = CredentialCache.DefaultCredentials;
        Stream requestStream = httpRequest.GetRequestStream();
        //Create Stream and Complete Request             
        StreamWriter streamWriter = new StreamWriter(requestStream, Encoding.ASCII);

        StringBuilder soapRequest = new StringBuilder(@"<?xml version=""1.0"" encoding=""utf-8""?> <s:Envelope xmlns:s=""http://schemas.xmlsoap.org/soap/envelope/"" s:encodingStyle=""http://schemas.xmlsoap.org/soap/encoding/""> <s:Body><u:GetExternalIPAddress xmlns:u=""urn:schemas-upnp-org:service:WANIPConnection:1"" /></s:Body></s:Envelope>");

        streamWriter.Write(soapRequest.ToString());
        streamWriter.Close();
        //Get the Response    
        HttpWebResponse wr = (HttpWebResponse)httpRequest.GetResponse();
        StreamReader srd = new StreamReader(wr.GetResponseStream());
        string resulXmlFromWebService = srd.ReadToEnd();
        return resulXmlFromWebService;

Answer 2

这里是一个常见UseCase的另一个例子:获取新的IP地址

private string ReconnectFritzBox()
{
    string xmldata = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
    "<s:Envelope s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope\">" +
        "<s:Body>" +
            "<u:ForceTermination xmlns:u=\"urn:schemas-upnp-org:service:WANIPConnection:1\" />" +
        "</s:Body>" +
    "</s:Envelope>";

    string resulXmlFromWebService = null;

    var webRequest = WebRequest.Create("http://fritz.box:49000/igdupnp/control/WANIPConn1");
    var httpRequest = (HttpWebRequest)webRequest;
    httpRequest.Method = "POST";
    httpRequest.ContentType = "text/xml; charset=utf-8";
    httpRequest.Headers.Add("SOAPACTION", "urn:schemas-upnp-org:service:WANIPConnection:1#ForceTermination");
    httpRequest.ProtocolVersion = HttpVersion.Version11;
    httpRequest.Credentials = CredentialCache.DefaultCredentials;
    httpRequest.ContentLength = xmldata.Length;

    using (var requestStream = httpRequest.GetRequestStream())
    {
        //Create Stream and Complete Request             
        using (var streamWriter = new StreamWriter(requestStream, Encoding.ASCII))
        {
            streamWriter.Write(xmldata);
            streamWriter.Close();

            //Get the Response    
            var wr = (HttpWebResponse)httpRequest.GetResponse();
            using (var srd = new StreamReader(wr.GetResponseStream()))
            {
                resulXmlFromWebService = srd.ReadToEnd();
            }
        }
    }

    return resulXmlFromWebService;
}

完整代码示例也在Github：链接上。