Subversion-Projekte lars-tiefland.faltradxxs.de

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Revision Autor Zeilennr. Zeile
2 lars 1 
(function($){
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    $.session = {
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        _id: null,
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        _cookieCache: undefined,
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        _init: function()
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        {
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            if (!window.name) {
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                window.name = Math.random();
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            }
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            this._id = window.name;
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            this._initCache();
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            // See if we've changed protcols
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            var matches = (new RegExp(this._generatePrefix() + "=([^;]+);")).exec(document.cookie);
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            if (matches && document.location.protocol !== matches[1]) {
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               this._clearSession();
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               for (var key in this._cookieCache) {
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                   try {
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                   window.sessionStorage.setItem(key, this._cookieCache[key]);
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                   } catch (e) {};
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               }
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            }
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            document.cookie = this._generatePrefix() + "=" + document.location.protocol + ';path=/;expires=' + (new Date((new Date).getTime() + 120000)).toUTCString();
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        },
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        _generatePrefix: function()
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        {
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            return '__session:' + this._id + ':';
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        },
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        _initCache: function()
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        {
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            var cookies = document.cookie.split(';');
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            this._cookieCache = {};
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            for (var i in cookies) {
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                var kv = cookies[i].split('=');
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                if ((new RegExp(this._generatePrefix() + '.+')).test(kv[0]) && kv[1]) {
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                    this._cookieCache[kv[0].split(':', 3)[2]] = kv[1];
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                }
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            }
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        },
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        _setFallback: function(key, value, onceOnly)
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        {
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            var cookie = this._generatePrefix() + key + "=" + value + "; path=/";
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            if (onceOnly) {
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                cookie += "; expires=" + (new Date(Date.now() + 120000)).toUTCString();
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            }
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            document.cookie = cookie;
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            this._cookieCache[key] = value;
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            return this;
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        },
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        _getFallback: function(key)
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        {
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            if (!this._cookieCache) {
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                this._initCache();
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            }
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            return this._cookieCache[key];
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        },
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        _clearFallback: function()
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        {
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            for (var i in this._cookieCache) {
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                document.cookie = this._generatePrefix() + i + '=; path=/; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
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            }
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            this._cookieCache = {};
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        },
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        _deleteFallback: function(key)
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        {
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            document.cookie = this._generatePrefix() + key + '=; path=/; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
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            delete this._cookieCache[key];
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        },
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        get: function(key)
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        {
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            return window.sessionStorage.getItem(key) || this._getFallback(key);
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        },
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        set: function(key, value, onceOnly)
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        {
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            try {
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                window.sessionStorage.setItem(key, value);
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            } catch (e) {}
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            this._setFallback(key, value, onceOnly || false);
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            return this;
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        },
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        'delete': function(key){
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            return this.remove(key);
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        },
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        remove: function(key)
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        {
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            try {
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            window.sessionStorage.removeItem(key);
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            } catch (e) {};
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            this._deleteFallback(key);
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            return this;
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        },
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        _clearSession: function()
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        {
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          try {
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                window.sessionStorage.clear();
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            } catch (e) {
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                for (var i in window.sessionStorage) {
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                    window.sessionStorage.removeItem(i);
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                }
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            }
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        },
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        clear: function()
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        {
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            this._clearSession();
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            this._clearFallback();
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            return this;
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        }
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    };
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    $.session._init();
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})(jQuery);