soap call from javascript returns [object Object]

[esdee]

hi, im using a library for soap calls from

http://www.guru4.net/articoli/javascript-soap-client/

but i have a problem with it not fully working in FireFox, namely - after this call

return SOAPClient._node2object(node, wsdl);

the object o

var o = null;
o = SOAPClient._soapresult2object(nd[0], wsdl);

contains [object Object] while i need its string contents, and i cant see any way to convert it properly to String

all this works properly in IE, Opera, and even in FireFox sometimes, but most of the time it fails in FireFox

how can i fix this?

------------------------

http://esdeeblog.blogspot.com/

 

[BillyRayPreachersSon]

Without looking into it in too much detail, my first thought is that the problem lies in the _node2object function - possibly the nodeValue is not what is expected. Can you see what nodeValue evaluates to?

On a totally different note (read as "guess" ;o)... try this, although I can't see it working if an impled call to toString doesn't work:

o = SOAPClient._soapresult2object(nd[0], wsdl)[b].toString()[/b];

Hope this helps,
Dan

[tt]Dan's Page [blue]@[/blue] Code Couch

http://www.codecouch.com/dan/

[/tt]

 

[esdee]

it turned out firefox handled the result xml differently than IE and Opera, so I had to make a fix to the soapclient.js

thanx for your suggestion, it turned out that because of this feature of firefox it indeed returned an object (array actually) that could only be resolved to [object Object]

------------------------

http://esdeeblog.blogspot.com/

 

[BillyRayPreachersSon]

Perhaps you could post the fix so anyone else with the same problem knows how to resolve it?

Dan


[tt]Dan's Page [blue]@[/blue] Code Couch

http://www.codecouch.com/dan/

[/tt]

 

[esdee]

i posted the solution to the origin of the js library (

http://www.guru4.net/articoli/javascript-soap-client/),

but i guess it wont do harm to post it here as well ...

basically my modification takes into account that firefox has different behavior with large soap results than IE or Opera (as I have discovered after much struggle) and returns specific results depending of the client browser. im no javascript expert, so probably there is some much more elegant solution, but i needed a quick hack and here it is .....

the script also includes some browser detection code i found at

http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html.

enjoy! maybe someone will find this usefull...

//<!--
// from [URL unfurl="true"]http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html[/URL]
// Ultimate client-side JavaScript client sniff. Version 3.03
// (C) Netscape Communications 1999-2001.  Permission granted to reuse and distribute.
// Revised 17 May 99 to add is_nav5up and is_ie5up (see below).
// Revised 20 Dec 00 to add is_gecko and change is_nav5up to is_nav6up
//                      also added support for IE5.5 Opera4&5 HotJava3 AOLTV
// Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera 4, 
//                      correct Opera 5 detection
//                      add support for winME and win2k
//                      synch with browser-type-oo.js
// Revised 26 Mar 01 to correct Opera detection
// Revised 02 Oct 01 to add IE6 detection

// Everything you always wanted to know about your JavaScript client
// but were afraid to ask. Creates "is_" variables indicating:
// (1) browser vendor:
//     is_nav, is_ie, is_opera, is_hotjava, is_webtv, is_TVNavigator, is_AOLTV
// (2) browser version number:
//     is_major (integer indicating major version number: 2, 3, 4 ...)
//     is_minor (float   indicating full  version number: 2.02, 3.01, 4.04 ...)
// (3) browser vendor AND major version number
//     is_nav2, is_nav3, is_nav4, is_nav4up, is_nav6, is_nav6up, is_gecko, is_ie3,
//     is_ie4, is_ie4up, is_ie5, is_ie5up, is_ie5_5, is_ie5_5up, is_ie6, is_ie6up, is_hotjava3, is_hotjava3up,
//     is_opera2, is_opera3, is_opera4, is_opera5, is_opera5up
// (4) JavaScript version number:
//     is_js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...)
// (5) OS platform and version:
//     is_win, is_win16, is_win32, is_win31, is_win95, is_winnt, is_win98, is_winme, is_win2k
//     is_os2
//     is_mac, is_mac68k, is_macppc
//     is_unix
//     is_sun, is_sun4, is_sun5, is_suni86
//     is_irix, is_irix5, is_irix6
//     is_hpux, is_hpux9, is_hpux10
//     is_aix, is_aix1, is_aix2, is_aix3, is_aix4
//     is_linux, is_sco, is_unixware, is_mpras, is_reliant
//     is_dec, is_sinix, is_freebsd, is_bsd
//     is_vms
//
// See [URL unfurl="true"]http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html[/URL] and
// [URL unfurl="true"]http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html[/URL]
// for detailed lists of userAgent strings.
//
// Note: you don't want your Nav4 or IE4 code to "turn off" or
// stop working when new versions of browsers are released, so
// in conditional code forks, use is_ie5up ("IE 5.0 or greater") 
// is_opera5up ("Opera 5.0 or greater") instead of is_ie5 or is_opera5
// to check version in code which you want to work on future
// versions.

    // convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();

    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is_ie5up to detect IE5.
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
    var is_nav2 = (is_nav && (is_major == 2));
    var is_nav3 = (is_nav && (is_major == 3));
    var is_nav4 = (is_nav && (is_major == 4));
    var is_nav4up = (is_nav && (is_major >= 4));
    var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    var is_nav6 = (is_nav && (is_major == 5));
    var is_nav6up = (is_nav && (is_major >= 5));
    var is_gecko = (agt.indexOf('gecko') != -1);


    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    var is_ie3    = (is_ie && (is_major < 4));
    var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
    var is_ie4up  = (is_ie && (is_major >= 4));
    var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
    var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
    var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
    var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
    var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

    // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
    // or if this is the first browser window opened.  Thus the
    // variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
    var is_aol   = (agt.indexOf("aol") != -1);
    var is_aol3  = (is_aol && is_ie3);
    var is_aol4  = (is_aol && is_ie4);
    var is_aol5  = (agt.indexOf("aol 5") != -1);
    var is_aol6  = (agt.indexOf("aol 6") != -1);

    var is_opera = (agt.indexOf("opera") != -1);
    var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
    var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
    var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
    var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
    var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

    var is_webtv = (agt.indexOf("webtv") != -1); 

    var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
    var is_AOLTV = is_TVNavigator;

    var is_hotjava = (agt.indexOf("hotjava") != -1);
    var is_hotjava3 = (is_hotjava && (is_major == 3));
    var is_hotjava3up = (is_hotjava && (is_major >= 3));

    // *** JAVASCRIPT VERSION CHECK ***
    var is_js;
    if (is_nav2 || is_ie3) is_js = 1.0;
    else if (is_nav3) is_js = 1.1;
    else if (is_opera5up) is_js = 1.3;
    else if (is_opera) is_js = 1.1;
    else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
    else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
    else if (is_hotjava3up) is_js = 1.4;
    else if (is_nav6 || is_gecko) is_js = 1.5;
    // NOTE: In the future, update this code when newer versions of JS
    // are released. For now, we try to provide some upward compatibility
    // so that future versions of Nav and IE will show they are at
    // *least* JS 1.x capable. Always check for JS version compatibility
    // with > or >=.
    else if (is_nav6up) is_js = 1.5;
    // NOTE: ie5up on mac is 1.4
    else if (is_ie5up) is_js = 1.3

    // HACK: no idea for other browsers; always check for JS version with > or >=
    else is_js = 0.0;

    // *** PLATFORM ***
    var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
    // NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
    //        Win32, so you can't distinguish between Win95 and WinNT.
    var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));

    // is this a 16 bit compiled version?
    var is_win16 = ((agt.indexOf("win16")!=-1) || 
               (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || 
               (agt.indexOf("windows 16-bit")!=-1) );  

    var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
                    (agt.indexOf("windows 16-bit")!=-1));

    var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
    var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1));

    // NOTE: Reliable detection of Win98 may not be possible. It appears that:
    //       - On Nav 4.x and before you'll get plain "Windows" in userAgent.
    //       - On Mercury client, the 32-bit version will return "Win98", but
    //         the 16-bit version running on Win98 will still return "Win95".
    var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
    var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
    var is_win32 = (is_win95 || is_winnt || is_win98 || 
                    ((is_major >= 4) && (navigator.platform == "Win32")) ||
                    (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));

    var is_os2   = ((agt.indexOf("os/2")!=-1) || 
                    (navigator.appVersion.indexOf("OS/2")!=-1) ||   
                    (agt.indexOf("ibm-webexplorer")!=-1));

    var is_mac    = (agt.indexOf("mac")!=-1);
    // hack ie5 js version for mac
    if (is_mac && is_ie5up) is_js = 1.4;
    var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || 
                               (agt.indexOf("68000")!=-1)));
    var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || 
                                (agt.indexOf("powerpc")!=-1)));

    var is_sun   = (agt.indexOf("sunos")!=-1);
    var is_sun4  = (agt.indexOf("sunos 4")!=-1);
    var is_sun5  = (agt.indexOf("sunos 5")!=-1);
    var is_suni86= (is_sun && (agt.indexOf("i86")!=-1));
    var is_irix  = (agt.indexOf("irix") !=-1);    // SGI
    var is_irix5 = (agt.indexOf("irix 5") !=-1);
    var is_irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1));
    var is_hpux  = (agt.indexOf("hp-ux")!=-1);
    var is_hpux9 = (is_hpux && (agt.indexOf("09.")!=-1));
    var is_hpux10= (is_hpux && (agt.indexOf("10.")!=-1));
    var is_aix   = (agt.indexOf("aix") !=-1);      // IBM
    var is_aix1  = (agt.indexOf("aix 1") !=-1);    
    var is_aix2  = (agt.indexOf("aix 2") !=-1);    
    var is_aix3  = (agt.indexOf("aix 3") !=-1);    
    var is_aix4  = (agt.indexOf("aix 4") !=-1);    
    var is_linux = (agt.indexOf("inux")!=-1);
    var is_sco   = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1);
    var is_unixware = (agt.indexOf("unix_system_v")!=-1); 
    var is_mpras    = (agt.indexOf("ncr")!=-1); 
    var is_reliant  = (agt.indexOf("reliantunix")!=-1);
    var is_dec   = ((agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1) || 
           (agt.indexOf("dec_alpha")!=-1) || (agt.indexOf("alphaserver")!=-1) || 
           (agt.indexOf("ultrix")!=-1) || (agt.indexOf("alphastation")!=-1)); 
    var is_sinix = (agt.indexOf("sinix")!=-1);
    var is_freebsd = (agt.indexOf("freebsd")!=-1);
    var is_bsd = (agt.indexOf("bsd")!=-1);
    var is_unix  = ((agt.indexOf("x11")!=-1) || is_sun || is_irix || is_hpux || 
                 is_sco ||is_unixware || is_mpras || is_reliant || 
                 is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd);

    var is_vms   = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1));

//--> end hide JavaScript

function SOAPClientParameters()
{
	var _pl = new Array();
	this.add = function(name, value) { _pl[name] = value; }
	this.toXml = function()
	{
		var xml = "";
		for(var p in _pl)
			xml += "<" + p + ">" + _pl[p] + "</" + p + ">";
		return xml;	
	}
}

function SOAPClient() {}

SOAPClient.invoke = function(url, method, parameters, async, callback)
{

	if(async)
		SOAPClient._loadWsdl(url, method, parameters, async, callback);
	else
		return SOAPClient._loadWsdl(url, method, parameters, async, callback);
}

// private: wsdl cache
SOAPClient_cacheWsdl = new Array();

// private: invoke async
SOAPClient._loadWsdl = function(url, method, parameters, async, callback)
{
	
	// load from cache?
	var wsdl = SOAPClient_cacheWsdl[url];
	if(wsdl + "" != "" && wsdl + "" != "undefined")
	{
		SOAPClient._sendSoapRequest(url, method, parameters, async, callback, wsdl);
		return;
	}
	// get wsdl
	var xmlHttp = SOAPClient._getXmlHttp();
	xmlHttp.open("GET", url + "?wsdl", async);
	if(async) 
	{
		xmlHttp.onreadystatechange = function() 
		{
			if(xmlHttp.readyState == 4)
				SOAPClient._onLoadWsdl(url, method, parameters, async, callback, xmlHttp);
		}
	}
	xmlHttp.send(null);
	if (!async)
		return SOAPClient._onLoadWsdl(url, method, parameters, async, callback, xmlHttp);
}
SOAPClient._onLoadWsdl = function(url, method, parameters, async, callback, req)
{
	var wsdl = req.responseXML;
	SOAPClient_cacheWsdl[url] = wsdl;	// save a copy in cache
	return SOAPClient._sendSoapRequest(url, method, parameters, async, callback, wsdl);
}
SOAPClient._sendSoapRequest = function(url, method, parameters, async, callback, wsdl)
{
	// get namespace
	var ns = (wsdl.documentElement.attributes["targetNamespace"] + "" == "undefined") ? wsdl.documentElement.attributes.getNamedItem("targetNamespace").nodeValue : wsdl.documentElement.attributes["targetNamespace"].value;
	// build SOAP request
	var sr = 
				"<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
				"<soap:Envelope " +
				"xmlns:xsi=\"[URL unfurl="true"]http://www.w3.org/2001/XMLSchema-instance\"[/URL] " +
				"xmlns:xsd=\"[URL unfurl="true"]http://www.w3.org/2001/XMLSchema\"[/URL] " +
				"xmlns:soap=\"[URL unfurl="true"]http://schemas.xmlsoap.org/soap/envelope/\">"[/URL] +
				"<soap:Body>" +
				"<" + method + " xmlns=\"" + ns + "\">" +
				parameters.toXml() +
				"</" + method + "></soap:Body></soap:Envelope>";
	// send request
	var xmlHttp = SOAPClient._getXmlHttp();
	xmlHttp.open("POST", url, async);
	var soapaction = ((ns.lastIndexOf("/") != ns.length - 1) ? ns + "/" : ns) + method;
	xmlHttp.setRequestHeader("SOAPAction", soapaction);
	xmlHttp.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
	if(async) 
	{
		xmlHttp.onreadystatechange = function() 
		{
			if(xmlHttp.readyState == 4)
				SOAPClient._onSendSoapRequest(method, async, callback, wsdl, xmlHttp);
		}
	}
	xmlHttp.send(sr);
	if (!async)
		return SOAPClient._onSendSoapRequest(method, async, callback, wsdl, xmlHttp);
}
SOAPClient._onSendSoapRequest = function(method, async, callback, wsdl, req)
{
	var o = null;
	var nd = req.responseXML.getElementsByTagName(method + "Result");
	
	if(nd.length == 0)
	{
		if(req.responseXML.getElementsByTagName("faultcode").length > 0)
			throw new Error(500, req.responseXML.getElementsByTagName("faultstring")[0].childNodes[0].nodeValue);
	}
	else
		o = SOAPClient._soapresult2object(nd[0], wsdl);

	if(callback)
		callback(o);
	if(!async)
		return o;		
}

// private: utils
SOAPClient._soapresult2object = function(node, wsdl)
{
	if (is_gecko)
		return SOAPClient._node2object(node, wsdl)["#text"];

	var node2 = SOAPClient._node2object(node, wsdl);
	
	if (is_opera && node2 == '[object Object]')
	{
	  return SOAPClient._node2object(node, wsdl)["#text"];
	}
	
	return node2;
}
SOAPClient._node2object = function(node, wsdl)
{
	// null node
	if(node == null)
		return null;
	// text node
	if(node.nodeType == 3 || node.nodeType == 4)
		return SOAPClient._extractValue(node, wsdl);
	// leaf node
	if (node.childNodes.length == 1 && (node.childNodes[0].nodeType == 3 || node.childNodes[0].nodeType == 4))
		return SOAPClient._node2object(node.childNodes[0], wsdl);
	var isarray = SOAPClient._getTypeFromWsdl(node.nodeName, wsdl).toLowerCase().indexOf("arrayof") != -1;
	// object node
	if(!isarray)
	{
		var obj = null;
		if(node.hasChildNodes())
			obj = new Object();
			
		for(var i = 0; i < node.childNodes.length; i++)
		{
			var p = SOAPClient._node2object(node.childNodes[i], wsdl);
			if (obj[node.childNodes[i].nodeName] == null)
			obj[node.childNodes[i].nodeName] = p;
			else
			obj[node.childNodes[i].nodeName] = obj[node.childNodes[i].nodeName] + p;
		}
		return obj;
	}
	// list node
	else
	{
		// create node ref
		var l = new Array();
		for(var i = 0; i < node.childNodes.length; i++)
			l[l.length] = SOAPClient._node2object(node.childNodes[i], wsdl);
		return l;
	}
	return null;
}
SOAPClient._extractValue = function(node, wsdl)
{
	var value = node.nodeValue;
	switch(SOAPClient._getTypeFromWsdl(node.parentNode.nodeName, wsdl).toLowerCase())
	{
		default:
		case "s:string":			
			return (value != null) ? value + "" : "";
		case "s:boolean":
			return value+"" == "true";
		case "s:int":
		case "s:long":
			return (value != null) ? parseInt(value + "", 10) : 0;
		case "s:double":
			return (value != null) ? parseFloat(value + "") : 0;
		case "s:datetime":
			if(value == null)
				return null;
			else
			{
				value = value + "";
				value = value.substring(0, value.lastIndexOf("."));
				value = value.replace(/T/gi," ");
				value = value.replace(/-/gi,"/");
				var d = new Date();
				d.setTime(Date.parse(value));										
				return d;				
			}
	}
}
SOAPClient._getTypeFromWsdl = function(elementname, wsdl)
{
	var ell = wsdl.getElementsByTagName("s:element");	// IE
	if(ell.length == 0)
		ell = wsdl.getElementsByTagName("element");	// MOZ
	for(var i = 0; i < ell.length; i++)
	{
		if(ell[i].attributes["name"] + "" == "undefined")	// IE
		{
			if(ell[i].attributes.getNamedItem("name") != null && ell[i].attributes.getNamedItem("name").nodeValue == elementname && ell[i].attributes.getNamedItem("type") != null) 
				return ell[i].attributes.getNamedItem("type").nodeValue;
		}	
		else // MOZ
		{
			if(ell[i].attributes["name"] != null && ell[i].attributes["name"].value == elementname && ell[i].attributes["type"] != null)
				return ell[i].attributes["type"].value;
		}
	}
	return "";
}
// private: xmlhttp factory
SOAPClient._getXmlHttp = function() 
{
	try
	{
		if(window.XMLHttpRequest) 
		{
			var req = new XMLHttpRequest();
			// some versions of Moz do not support the readyState property and the onreadystate event so we patch it!
			if(req.readyState == null) 
			{
				req.readyState = 1;
				req.addEventListener("load", 
									function() 
									{
										req.readyState = 4;
										if(typeof req.onreadystatechange == "function")
											req.onreadystatechange();
									},
									false);
			}
			return req;
		}
		if(window.ActiveXObject) 
			return new ActiveXObject(SOAPClient._getXmlHttpPrefix() + ".XmlHttp");
	}
	catch (ex) {}
	throw new Error("Your browser does not support XmlHttp objects");
}
SOAPClient._getXmlHttpPrefix = function()
{
	if(SOAPClient._getXmlHttpPrefix.prefix)
		return SOAPClient._getXmlHttpPrefix.prefix;
	var prefixes = ["MSXML2", "Microsoft", "MSXML", "MSXML3"];
	var o;
	for(var i = 0; i < prefixes.length; i++)
	{
		try
		{
			o = new ActiveXObject(prefixes[i] + ".XmlHttp");
			return SOAPClient._getXmlHttpPrefix.prefix = prefixes[i];
		}
		catch (ex) {};
	}
	throw new Error("Could not find an installed XML parser");
}

------------------------

http://esdeeblog.blogspot.com/