Fix for jquery xmlrpc plugin

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window.jQuery = window.jQuery || {};
window.jQuery.fn = window.jQuery.fn || {};

jQuery.fn.rpc = function(url, dataType, onLoadCallback, version) {
        version = version || "1.0";
        dataType = dataType || "json";
        if(dataType != "json" && dataType != "xml") {
                new Error("IllegalArgument: Unsupported data type");
        }
        var _self = this;
        var serializeToXml = function(data) {
                switch (typeof data) {
                case 'boolean':
                        return '<boolean>'+ ((data) ? '1' : '0') +'</boolean>';
                case 'number':
                        var parsed = parseInt(data);
                        if(parsed == data) {
                                return '<int>'+ data +'</int>';
                        }
                        return '<double>'+ data +'</double>';
                case 'string':
                        return '<string>'+ data +'</string>';
                case 'object':
                        if(data instanceof Date) {
                                return '<dateTime.iso8601>'+ data.getFullYear() + data.getMonth() + data.getDate() +'T'+ data.getHours() +':'+ data.getMinutes() +':'+ data.getSeconds() +'</dateTime.iso8601>';
                        } else if(data instanceof Array) {
                                var ret = '<array><data>'+"\n";
                                for (var i=0; i < data.length; i++) {
                                        ret += '  <value>'+ serializeToXml(data[i]) +"</value>\n";
                                }
                                ret += '</data></array>';
                                return ret;
                        } else {
                                var ret = '<struct>'+"\n";
                                jQuery.each(data, function(key, value) {
                                        ret += "  <member><name>"+ key +"</name><value>";
                                        ret += serializeToXml(value) +"</value></member>\n";
                                });
                                ret += '</struct>';
                                return ret;
                        }
                }
        }
        var xmlRpc = function(method, params) {
                var ret = '<?xml version="'+version+'"?><methodCall><methodName>'+method+'</methodName><params>';
                for(var i=0; i<params.length; i++) {
                        ret += "<param><value>"+serializeToXml(params[i])+"</value></param>";
                }
                ret += "</params></methodCall>";
                return ret;
        }
        var parseXmlValue = function(node) {
                childs = jQuery(node).children();
                for(var i=0; i < childs.length; i++) {
                        switch(childs[i].tagName) {
                        case 'boolean':
                                return (jQuery(childs[i]).text() == 1);
                        case 'int':
                                return parseInt(jQuery(childs[i]).text());
                        case 'double':
                                return parseFloat(jQuery(childs[i]).text());
                        case "string":
                                return jQuery(childs[i]).text();
                        case "array":
                                var ret = [];
                                jQuery("> data > value", childs[i]).each(
                                        function() {
                                                ret.push(parseXmlValue(this));
                                        }
                                );
                                return ret;
                        case "struct":
                                var ret = {};
                                jQuery("> member", childs[i]).each(
                                        function() {
                                                ret[jQuery( "> name", this).text()] = parseXmlValue(jQuery("value", this));
                                        }
                                );
                                return ret;
                        case "dateTime.iso8601":
                                /* TODO: fill me :( */
                                return NULL;
                        }
                }
        }
        var parseXmlResponse = function(data) {
                var ret = {};
                ret.version = version;
                jQuery("methodResponse params param > value", data).each(
                        function(index) {
                                ret.result = parseXmlValue(this);
                        }
                );
                jQuery("methodResponse fault > value", data).each(
                        function(index) {
                                ret.error = parseXmlValue(this);
                        }
                );
                return ret;
        }
        var rpc_contents = {
                'xml':'text/xml'
                ,'json':'application/json'
        };
        var _rpc = function(method, callback) {
                var params = [];
                for (var i=2; i<arguments.length; i++) {
                        params.push(arguments[i]);
                }
                console.log(params);
                var data;
                if(dataType == 'json') {
                        data = {"version":version, "method":method, "params":params};
                } else {
                        data = xmlRpc(method, params);
                }
                console.log(data);
                jQuery.ajax({
                        "url": url,
                        "dataType": dataType,
                        "type": 'POST',
                        "data": data,
                        "success": function(inp) {
                                var json = inp;
                                if(dataType == "xml") {
                                        json = parseXmlResponse(inp);
                                }
                                console.log("json response:", json);
                                callback(json);
                        },
                        "processData": false,
                        "contentType": rpc_contents[dataType]
                });
        };
        _rpc("system.listMethods", 
                function(json) {
                        console.log(json);
                        /* get the functions */
                        if(!json.result) {
                                return;
                        }
                        var proc = null;
                        for(var i = 0; i<json.result.length; i++) {
                                proc = json.result[i];
                                var obj = _self;
                                var objStack = proc.split(/\./);
                                for(var j = 0; j < (objStack.length - 1); j++){
                                        obj[objStack[j]] = obj[objStack[j]] || {};
                                        obj = obj[objStack[j]];
                                }
                                /* add the new procedure */
                                obj[objStack[j]] = (
                                        function(method, obj) {
                                                var _outer = {"method":method,"rpc":_rpc};
                                                return function(callback) {
                                                        var params = [];
                                                        params.push(_outer.method);
                                                        params.push(callback);
                                                        for (var i=1; i<arguments.length; i++) {
                                                                params.push(arguments[i]);
                                                        }
                                                        _rpc.apply(_self, params);
                                                }
                                        }
                                )(proc, _rpc);
                        }
                        console.log('Load was performed.');
                        if(onLoadCallback) {
                                onLoadCallback(_self);
                        }
                }
        );
};

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Fix for jquery xmlrpc plugin