/*
*	Plugin name : jquery.webservice
*	Author : Jimmy Hattori
*	Created on : 2009-06-11
*	Description : Enable to access .Net webservice.
*	Options:
*		As this plugin is written based on jQuery.ajax, options are exact same as jQuery.ajax except "data" option
*		and other few extra custom options. Followings are options that are specific to this plugin.
*
*       - requestType   string  (optional)
*           Four options of request type.            
*               * "soap1.1" (SOAP 1.1) - default
*               * "soap1.2" (SOAP 1.2)
*               * "httpget" (HTTP GET)
*               * "httppost" (HTTP POST)
*
*		- nameSpace	string	*only required if "soap1.1" or "soap1.2" were selected.
*			Namespace of webservice. In .Net webservice, default is "http://tempurl.org".
*
*		- methodName	string	*required
*			Name of the webmethod to access
*
*		- data	Object	(optional)
*			parameters to be sent to the server if the web method requires values to its arguments.
*			Needs to be written in JSON. (i.e. {memberID:111,firstName:"Foo",lastName:"Foo"})
*		
*		For the rest of options document, see http://docs.jquery.com/Ajax/jQuery.ajax#options.
*
*	Example:
*		$.webservice({
*			url: "Foo.asmx",
*			data: {fooID:1,fooText:"foo-eee!"},
*			dataType: "text",
*			nameSpace: "http://tempuri.org/",
*			methodName: "fooWebMethod",
*			success:function(data,textStatus){				
*				$("#divFood").html(data);
*			}
*		});		
*/

jQuery.webservice = function(options){
	try
	{
	    
	    var settings = {requestType:"soap1.1",
	                    error:function(XMLHttpRequest, textStatus, errorThrown){
	                        throw XMLHttpRequest.responseText;
	                    }};
	    $.extend(settings,options);
	    
	    var oBuffer = new Array();
	    
	    if(settings.requestType == "soap1.1" || settings.requestType == "soap1.2") {
			if (settings.nameSpace.lastIndexOf("/") == settings.nameSpace.length-1)
				settings.nameSpace = settings.nameSpace.substr(0, settings.nameSpace.length-1);
		}
	    
	    switch(settings.requestType){
	        case "soap1.2":
	            settings.methodType = "POST";
	            settings.contentType = "application/soap+xml";
	            
	            oBuffer.push("<soap12:Envelope ");
		        oBuffer.push("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ");
		        oBuffer.push("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" ");
		        oBuffer.push("xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">");
		        oBuffer.push("<soap12:Body>");
		        oBuffer.push("<"+settings.methodName+" xmlns=\""+settings.nameSpace+"/\">");
		        for(key in settings.data){
			        if(key != "length" && typeof(settings.data[key].prototype) == "undefined")
				        oBuffer.push("<"+key+">"+settings.data[key]+"</"+key+">");
		        }
		        oBuffer.push("</"+settings.methodName+">");
		        oBuffer.push("</soap12:Body>");
		        oBuffer.push("</soap12:Envelope>");
		        
		        settings.requestData = oBuffer.join("");
		        
		        break;
	        case "httpget":
	            settings.methodType = "GET";
	            settings.contentType = "text/xml";
	            
	            for(key in settings.data){
			        if(key != "length" && typeof(settings.data[key].prototype) == "undefined")
				        oBuffer.push(key+"="+settings.data[key]);
		        }
		        
	            settings.url += ("/" + settings.methodName + "?" + oBuffer.join("&"));
	            settings.requestData = "";
	            
	            break;
	        case "httppost":
	            settings.methodType = "POST";
	            settings.contentType = "application/x-www-form-urlencoded";
	            
	            for(key in settings.data){
			        if(key != "length" && typeof(settings.data[key].prototype) == "undefined")
				        oBuffer.push(key+"="+settings.data[key]);
		        }
		        
		        settings.url += ("/" + settings.methodName);
		        settings.requestData = oBuffer.join("&");
		        
	            break;
	        default:
	            settings.requestType = "soap1.1";
	            settings.methodType = "POST";
	            settings.contentType = "text/xml; charset=utf-8";
	            
	            oBuffer.push("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
				oBuffer.push("<soap:Envelope ");
		        oBuffer.push("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ");
		        oBuffer.push("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" ");
		        oBuffer.push("xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">");
		        oBuffer.push("<soap:Body>");
		        oBuffer.push("<"+settings.methodName+" xmlns=\""+settings.nameSpace+"/\">");
		        for(key in settings.data){
			        if(key != "length" && typeof(settings.data[key].prototype) == "undefined")
				        oBuffer.push("<"+key+">"+settings.data[key]+"</"+key+">");
		        }
		        oBuffer.push("</"+settings.methodName+">");
		        oBuffer.push("</soap:Body>");
		        oBuffer.push("</soap:Envelope>");
	            
	            settings.requestData = oBuffer.join("");
	            
	            break;
	    }
		
		
		$.ajax({type: settings.methodType,
				cache: false,
				url: settings.url,
				data: settings.requestData,
				contentType: settings.contentType,
				dataType: settings.dataType,
				success: settings.success,
				error: settings.error,
				beforeSend: function(XMLHttpRequest){
				    if(settings.requestType == "soap1.1" || settings.requestType == "soap1.2")
					    XMLHttpRequest.setRequestHeader("SOAPAction", settings.nameSpace + "/" + settings.methodName);
					XMLHttpRequest.setRequestHeader("Content-Length",settings.requestData.length);
					XMLHttpRequest.setRequestHeader("Connection","close");
				}
		});
	}
	catch(err)
	{
		alert("Error occurred in jquery.webservice.js.");
	}
};