#JS #UTIL cookies.js

cookies.js

/*\
 |*|
 |*|  :: cookies.js ::
 |*|
 |*|  A complete cookies reader/writer framework with full unicode support.
 |*|
 |*|  Revision #1 - September 4, 2014
 |*|
 |*|  https://developer.mozilla.org/en-US/docs/Web/API/document.cookie
 |*|  https://developer.mozilla.org/User:fusionchess
 |*|
 |*|  This framework is released under the GNU Public License, version 3 or later.
 |*|  http://www.gnu.org/licenses/gpl-3.0-standalone.html
 |*|
 |*|  Syntaxes:
 |*|
 |*|  * docCookies.setItem(name, value[, end[, path[, domain[, secure]]]])
 |*|  * docCookies.getItem(name)
 |*|  * docCookies.removeItem(name[, path[, domain]])
 |*|  * docCookies.hasItem(name)
 |*|  * docCookies.keys()
 |*|
 \*/

var docCookies = {
	getItem: function(sKey) {
		if (!sKey) { return null; }
		return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
	},
	setItem: function(sKey, sValue, vEnd, sPath, sDomain, bSecure) {
		if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
		var sExpires = "";
		if (vEnd) {
			switch (vEnd.constructor) {
				case Number:
					sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
					break;
				case String:
					sExpires = "; expires=" + vEnd;
					break;
				case Date:
					sExpires = "; expires=" + vEnd.toUTCString();
					break;
			}
		}
		document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
		return true;
	},
	removeItem: function(sKey, sPath, sDomain) {
		if (!this.hasItem(sKey)) { return false; }
		document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "");
		return true;
	},
	hasItem: function(sKey) {
		if (!sKey) { return false; }
		return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
	},
	listKeys: function() {
		var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);
		for (var nLen = aKeys.length, nIdx = 0; nIdx < nLen; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); }
		return aKeys;
	},
	clearItems: function() {
		var cKies = this.listKeys(),
			cLen = cKies.length;
		for (var nId = 0; nId < cLen; nId++) {
			this.removeItem(cKies[nId]);
		}
		return true;
	}
};

syntax.js

docCookies.setItem(name, value[, end[, path[, domain[, secure]]]]);
docCookies.getItem(name);
docCookies.removeItem(name[, path[, domain]]);
docCookies.hasItem(name);
docCookies.keys();