thinkjs/lib/Lib/Core/Tool.class.js

/**
 * 解析cookie
 * @param  {[type]} str [description]
 * @param  {[type]} opt [description]
 * @return {[type]}     [description]
 */
exports.parseCookie =  function(str, opt) {
    opt = opt || {};
    var obj = {}
    var pairs = str.split(/[;,] */);
    var dec = opt.decode || decodeURIComponent;
    pairs.forEach(function(pair) {
        var eq_idx = pair.indexOf('=')

        // skip things that don't look like key=value
        if (eq_idx < 0) {
            return;
        }

        var key = pair.substr(0, eq_idx).trim()
        var val = pair.substr(++eq_idx, pair.length).trim();

        // quoted values
        if ('"' == val[0]) {
            val = val.slice(1, -1);
        }

        // only assign once
        if (undefined == obj[key]) {
            try {
                obj[key] = dec(val);
            } catch (e) {
                obj[key] = val;
            }
        }
    });
    return obj;
};