using System;
using System.Reflection;

namespace WebDav
{
	class Class1
	{	
		public static void Main(String [] args)
		{
			try 
			{
				// TODO:			
				String strExchSvr = "ExchServer";
				String strAlias = "UsrAlias";
				String strUserName = @"UsrDom\UsrAlias"; 
				String strPassWord = "UsrPassword";
				Class1 Instmyclass = new Class1();
				String sMailUrl;
				sMailUrl = Instmyclass.FindSubmissionURL(strExchSvr, strAlias, strUserName, strPassWord);			
						
				// TODO:
				String  strFrom = "usr1@example.com";
				String  strTo = "usr2@example.com";
				String  strSubject = "Send Using Webdav";
				String  strBody = "Hello World";			

				MSXML2.XMLHTTP30 oXMLHttp = new MSXML2.XMLHTTP30();
				oXMLHttp.open("PUT", sMailUrl, false, strUserName, strPassWord);
			    
				DateTime mySentTime = new DateTime();
				String sQuery;
				sQuery = "From: " + strFrom + "\n" + 
					"To: " + strTo + "\n" + 
					"Subject: " + strSubject + "\n" + 
					"Date: " + Convert.ToDateTime("9/11/2001 11:45 AM") + "\n" +
					"X-Mailer: My DAV mailer" + "\n" + 
					"MIME-Version: 1.0" + "\n" + 
					"Content-Type: text/plain;" + "\n" + 
					"Charset = \"iso-8859-1\"" + "\n" + 
					"Content-Transfer-Encoding: 7bit" + "\n" + "\n" + 
					strBody;

				oXMLHttp.setRequestHeader("Translate", "f");
				oXMLHttp.setRequestHeader("Content-Type", "message/rfc822");
				oXMLHttp.setRequestHeader("Content-Length", "" + sQuery.Length);

				Console.WriteLine(sQuery);
				oXMLHttp.send(sQuery);

				Console.WriteLine(oXMLHttp.status);
				Console.WriteLine(oXMLHttp.statusText);
				Console.WriteLine(oXMLHttp.responseText);
			}
			catch (Exception e)
			{
				Console.WriteLine("{0} Exception caught.", e);
			}

		
		}


		private String FindSubmissionURL(String strExchSvr, 
			String strAlias, 
			String strUserName, 
			String strPassWord)
		{
      
			String query;
			String strURL;
			String baseName = "";
			MSXML2.XMLHTTP30 xmlReq = new MSXML2.XMLHTTP30();

			MSXML2.DOMDocument xmldom = new MSXML2.DOMDocument();
			MSXML2.IXMLDOMElement xmlRoot; 
			MSXML2.IXMLDOMNode xmlNode;
											
			//Create the DAV PROPFIND request.
			strURL = "http:/" + strExchSvr + "/exchange" + strAlias;

			xmlReq.open("PROPFIND", strURL, false, strUserName, strPassWord);
			xmlReq.setRequestHeader("Content-Type", "text/xml");
			xmlReq.setRequestHeader("Depth", "0");

			query = "<?xml version='1.0'?>";
			query = query + "<a:propfind xmlns:a='DAV:'>";
			query = query + "<a:prop xmlns:m='urn:schemas:httpmail:'>";
			query = query + "<m:sendmsg/>";
			query = query + "</a:prop>";
			query = query + "</a:propfind>";
	      
			xmlReq.send(query);

			Console.WriteLine(xmlReq.status);
			Console.WriteLine(xmlReq.statusText);
			Console.WriteLine(xmlReq.responseText);
      
			// Process the result.
			if (xmlReq.status >= 200 && xmlReq.status < 300)
			{	
				xmldom.loadXML(xmlReq.responseText);   // working!
				xmlRoot = xmldom.documentElement;   

				for(int i = 1; i <= xmlRoot.attributes.length; i++)
				{
					xmlNode  = xmlRoot.attributes[i];
					if(xmlNode.text == "urn:schemas:httpmail:")
					{
						baseName = xmlNode.baseName;
						break;
					}
				}

				xmlNode = xmlRoot.selectSingleNode("/" + baseName + ":sendmsg");
				return xmlNode.text;

			}
			else
			{
				Console.WriteLine("Failed to find mail submission URL");
				return "";						   
			}

			xmlReq = null;
			xmldom = null;
			xmlRoot = null;
			xmlNode = null;


			return "";

		}


	}
}