json.js

//
// Copyright (c) 2006-2025 Wade Alcorn - [email protected]
// Browser Exploitation Framework (BeEF) - https://beefproject.com
// See the file 'doc/COPYING' for copying permission
//

/** 
 * Json code from Brantlye Harris-- http://code.google.com/p/jquery-json/
 * @namespace beef.encode.json
 */

beef.encode.json = {
	/**
     * @memberof beef.encode.json
     * @param o 
     */
	stringify: function(o) {
        if (typeof(JSON) == 'object' && JSON.stringify) {
            // Error on stringifying cylcic structures caused polling to die
            try {
                s = JSON.stringify(o);    
            } catch(error) {
                // TODO log error / handle cyclic structures? 
            }
            return s;
        }
        var type = typeof(o);
    
        if (o === null)
            return "null";
    
        if (type == "undefined")
            return '\"\"';
        
        if (type == "number" || type == "boolean")
            return o + "";
    
        if (type == "string")
            return $j.quoteString(o);
    
        if (type == 'object')
        {
            if (typeof o.toJSON == "function") 
                return $j.toJSON( o.toJSON() );
            
            if (o.constructor === Date)
            {
                var month = o.getUTCMonth() + 1;
                if (month < 10) month = '0' + month;

                var day = o.getUTCDate();
                if (day < 10) day = '0' + day;

                var year = o.getUTCFullYear();
                
                var hours = o.getUTCHours();
                if (hours < 10) hours = '0' + hours;
                
                var minutes = o.getUTCMinutes();
                if (minutes < 10) minutes = '0' + minutes;
                
                var seconds = o.getUTCSeconds();
                if (seconds < 10) seconds = '0' + seconds;
                
                var milli = o.getUTCMilliseconds();
                if (milli < 100) milli = '0' + milli;
                if (milli < 10) milli = '0' + milli;

                return '"' + year + '-' + month + '-' + day + 'T' +
                             hours + ':' + minutes + ':' + seconds + 
                             '.' + milli + 'Z"'; 
            }

            if (o.constructor === Array) 
            {
                var ret = [];
                for (var i = 0; i < o.length; i++)
                    ret.push( $j.toJSON(o[i]) || "null" );

                return "[" + ret.join(",") + "]";
            }
        
            var pairs = [];
            for (var k in o) {
                var name;
                var type = typeof k;

                if (type == "number")
                    name = '"' + k + '"';
                else if (type == "string")
                    name = $j.quoteString(k);
                else
                    continue;  //skip non-string or number keys
            
                if (typeof o[k] == "function") 
                    continue;  //skip pairs where the value is a function.
            
                var val = $j.toJSON(o[k]);
            
                pairs.push(name + ":" + val);
            }

            return "{" + pairs.join(", ") + "}";
        }
    },
    /**
     * @memberof beef.encode.json
     * @param string 
     */
    quoteString: function(string) {
        if (string.match(this._escapeable))
        {
            return '"' + string.replace(this._escapeable, function (a) 
            {
                var c = this._meta[a];
                if (typeof c === 'string') return c;
                c = a.charCodeAt();
                return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
            }) + '"';
        }
        return '"' + string + '"';
    },
    
    _escapeable: /["\\\x00-\x1f\x7f-\x9f]/g,
    
    _meta : {
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '"' : '\\"',
        '\\': '\\\\'
    }
};

$j.toJSON = function(o) {return beef.encode.json.stringify(o);};
$j.quoteString = function(o) {return beef.encode.json.quoteString(o);};

beef.regCmp('beef.encode.json');