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