POST to a Cisco IP phone

Question

Hi, I am trying to make a C# web application wich will POST an xml message to a Cisco IP phone. If I create a webpage with a text editor with the following code, it works when I open it in my browser. form action = "http://10.5.1.168/CGI/Execute" method = "POST" > textarea name = "XML" rows = "20" cols = "80" > CiscoIPPhoneExecute > ExecuteItem Priority = "0" URL = "http://10.1.1.15/ciscoipservices/clock/clock.asp" /> ; CiscoIPPhoneExecute > textarea > br /> input type = "submit" value = "POST" /> form > Does anyone know how I can put this into C# code and send it with a webform button? Im new to C# but im sure this could be done somehow. Thanks in advance.

SalmanBajwa · Answer

form action = "http://10.5.1.168/CGI/Execute" method = "POST" > textarea name = "XML" rows = "20" cols = "80" > CiscoIPPhoneExecute > ExecuteItem Priority = "0" URL = "http://10.1.1.15/ciscoipservices/clock/clock.asp" /> ; CiscoIPPhoneExecute > textarea > br /> input type = "submit" value = "POST" /> form > I tried to Execute the HTML code for the solution, but i found error which was not even mentioned in the document of CiscoIPPhone. When i click on the Post button, it asked me the login name and pwd of the system to whome i wanted to send the CGI Request. after getting the pwd (which is valid), it gives me the following error Can you tell me whats this error and how it can be resolved? I found no help anywhere. Please help me out. Any kind of help will be appericiated.

tsuman_in · Answer

Do you have any experience with the WebClient or WebRequest objects? Check out the documentation around them, they're located in System.Net. Code to do what you've listed above would be: public sealed class CiscoIpPhone { public static string PostPhoneMessage(string url, XmlDocument messageXml) { return PostPhoneMessage(url, messageXml.OuterXml); } public static string PostPhoneMessage(string url, string messageXml) { // create the web request WebRequest request = WebRequest.Create(url); // get the Request stream. // we need to write variables to this for the post // set the method to POST Stream stm = request.GetRequestStream(); request.Method = "POST"; // write the xml to the stream StreamWriter sw = new StreamWriter(stm); sw.Write("XML="); sw.Write(messageXml); // set credentials to allow only certain users the ability to do this // req.Credentials = not implemented; // send the request WebResponse response = request.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream()); // Clean up by nulling items on the stack // this keeps the garbage collector (GC) from being forced to dump items but reduces the memory they need // until the next GC cleanup sw = null; sr = null; // return the response data sent by the phone // (remember, anything tcp/ip has a response) return sr.ReadToEnd(); } }