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September 27, 2012 19:03
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/** | |
* Javascript code to store data as JSON strings in cookies. | |
* It uses prototype.js 1.5.1 (http://www.prototypejs.org) | |
* | |
* Author : Lalit Patel | |
* Website: http://www.lalit.org/lab/jsoncookies | |
* License: Apache Software License 2 | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* Version: 0.5 | |
* Updated: Jan 26, 2009 | |
* | |
* Chnage Log: | |
* v 0.5 | |
* - Changed License from CC to Apache 2 | |
* v 0.4 | |
* - Removed a extra comma in options (was breaking in IE and Opera). (Thanks Jason) | |
* - Removed the parameter name from the initialize function | |
* - Changed the way expires date was being calculated. (Thanks David) | |
* v 0.3 | |
* - Removed dependancy on json.js (http://www.json.org/json.js) | |
* - empty() function only deletes the cookies set by CookieJar | |
*/ | |
var CookieJar = Class.create(); | |
CookieJar.prototype = { | |
/** | |
* Append before all cookie names to differntiate them. | |
*/ | |
appendString: "__CJ_", | |
/** | |
* Initializes the cookie jar with the options. | |
*/ | |
initialize: function(options) { | |
this.options = { | |
expires: 3600, // seconds (1 hr) | |
path: '', // cookie path | |
domain: '', // cookie domain | |
secure: '' // secure ? | |
}; | |
Object.extend(this.options, options || {}); | |
if (this.options.expires != '') { | |
var date = new Date(); | |
date = new Date(date.getTime() + (this.options.expires * 1000)); | |
this.options.expires = '; expires=' + date.toGMTString(); | |
} | |
if (this.options.path != '') { | |
this.options.path = '; path=' + escape(this.options.path); | |
} | |
if (this.options.domain != '') { | |
this.options.domain = '; domain=' + escape(this.options.domain); | |
} | |
if (this.options.secure == 'secure') { | |
this.options.secure = '; secure'; | |
} else { | |
this.options.secure = ''; | |
} | |
}, | |
/** | |
* Adds a name values pair. | |
*/ | |
put: function(name, value) { | |
name = this.appendString + name; | |
cookie = this.options; | |
var type = typeof value; | |
switch(type) { | |
case 'undefined': | |
case 'function' : | |
case 'unknown' : return false; | |
case 'boolean' : | |
case 'string' : | |
case 'number' : value = String(value.toString()); | |
} | |
var cookie_str = name + "=" + escape(Object.toJSON(value)); | |
try { | |
document.cookie = cookie_str + cookie.expires + cookie.path + cookie.domain + cookie.secure; | |
} catch (e) { | |
return false; | |
} | |
return true; | |
}, | |
/** | |
* Removes a particular cookie (name value pair) form the Cookie Jar. | |
*/ | |
remove: function(name) { | |
name = this.appendString + name; | |
cookie = this.options; | |
try { | |
var date = new Date(); | |
date.setTime(date.getTime() - (3600 * 1000)); | |
var expires = '; expires=' + date.toGMTString(); | |
document.cookie = name + "=" + expires + cookie.path + cookie.domain + cookie.secure; | |
} catch (e) { | |
return false; | |
} | |
return true; | |
}, | |
/** | |
* Return a particular cookie by name; | |
*/ | |
get: function(name) { | |
name = this.appendString + name; | |
var cookies = document.cookie.match(name + '=(.*?)(;|$)'); | |
if (cookies) { | |
return (unescape(cookies[1])).evalJSON(); | |
} else { | |
return null; | |
} | |
}, | |
/** | |
* Empties the Cookie Jar. Deletes all the cookies. | |
*/ | |
empty: function() { | |
keys = this.getKeys(); | |
size = keys.size(); | |
for(i=0; i<size; i++) { | |
this.remove(keys[i]); | |
} | |
}, | |
/** | |
* Returns all cookies as a single object | |
*/ | |
getPack: function() { | |
pack = {}; | |
keys = this.getKeys(); | |
size = keys.size(); | |
for(i=0; i<size; i++) { | |
pack[keys[i]] = this.get(keys[i]); | |
} | |
return pack; | |
}, | |
/** | |
* Returns all keys. | |
*/ | |
getKeys: function() { | |
keys = $A(); | |
keyRe= /[^=; ]+(?=\=)/g; | |
str = document.cookie; | |
CJRe = new RegExp("^" + this.appendString); | |
while((match = keyRe.exec(str)) != undefined) { | |
if (CJRe.test(match[0].strip())) { | |
keys.push(match[0].strip().gsub("^" + this.appendString,"")); | |
} | |
} | |
return keys; | |
} | |
}; |
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