422 lines
14 KiB
JavaScript
422 lines
14 KiB
JavaScript
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/**
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* jaaulde.cookies.js
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*
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* Copyright (c) 2005 - 2011, James Auldridge
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* All rights reserved.
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*
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* Licensed under the BSD, MIT, and GPL (your choice!) Licenses:
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* @link http://code.google.com/p/cookies/wiki/License
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*
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*/
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( function( global )
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{
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"use strict";
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/* localize globals */
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var document = global.document,
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Object = global.Object,
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JSON = global.JSON,
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/* localize first party support */
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jaaulde = global.jaaulde = ( global.jaaulde || {} );
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/*
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* jaaulde.utils Namespace
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*/
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jaaulde.utils = jaaulde.utils || {};
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/*
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* The library
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*/
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jaaulde.utils.cookies = ( function()
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{
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var defaultOptions,
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resolveOptions, assembleOptionsString, isNaN, trim, parseCookies, Constructor;
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defaultOptions = {
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expiresAt: null,
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path: '/',
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domain: null,
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secure: false
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};
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resolveOptions = function( options )
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{
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var returnValue, expireDate;
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if( typeof options !== 'object' || options === null )
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{
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returnValue = defaultOptions;
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}
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else
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{
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returnValue = {
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expiresAt: defaultOptions.expiresAt,
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path: defaultOptions.path,
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domain: defaultOptions.domain,
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secure: defaultOptions.secure
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};
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if( typeof options.expiresAt === 'object' && options.expiresAt instanceof Date )
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{
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returnValue.expiresAt = options.expiresAt;
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}
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else if( typeof options.hoursToLive === 'number' && options.hoursToLive !== 0 )
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{
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expireDate = new global.Date();
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expireDate.setTime( expireDate.getTime() + ( options.hoursToLive * 60 * 60 * 1000 ) );
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returnValue.expiresAt = expireDate;
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}
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if( typeof options.path === 'string' && options.path !== '' )
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{
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returnValue.path = options.path;
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}
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if( typeof options.domain === 'string' && options.domain !== '' )
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{
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returnValue.domain = options.domain;
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}
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if( options.secure === true )
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{
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returnValue.secure = options.secure;
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}
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}
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return returnValue;
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};
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assembleOptionsString = function( options )
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{
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options = resolveOptions( options );
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return (
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( typeof options.expiresAt === 'object' && options.expiresAt instanceof Date ? '; expires=' + options.expiresAt.toGMTString() : '' ) +
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'; path=' + options.path +
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( typeof options.domain === 'string' ? '; domain=' + options.domain : '' ) +
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( options.secure === true ? '; secure' : '' )
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);
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};
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/**
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* Some logic borrowed from http://jquery.com/
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*/
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trim = global.String.prototype.trim ?
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function( data )
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{
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return global.String.prototype.trim.call( data );
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} :
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( function()
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{
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var trimLeft, trimRight;
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trimLeft = /^\s+/;
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trimRight = /\s+$/;
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return function( data )
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{
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return data.replace( trimLeft, '' ).replace( trimRight, '' );
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};
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}() );
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/**
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* Borrowed from http://jquery.com/
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*/
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isNaN = ( function()
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{
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var rdigit = /\d/, isNaN = global.isNaN;
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return function( obj )
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{
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return ( obj === null || ! rdigit.test( obj ) || isNaN( obj ) );
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};
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}() );
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parseCookies = ( function()
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{
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var parseJSON, rbrace;
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parseJSON = JSON && JSON.parse ?
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function( data )
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{
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var returnValue = null;
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if( typeof data === 'string' && data !== '' )
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{
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// Make sure leading/trailing whitespace is removed (IE can't handle it)
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data = trim( data );
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if( data !== '' )
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{
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try
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{
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returnValue = JSON.parse( data );
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}
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catch( e1 )
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{
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returnValue = null;
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}
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}
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}
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return returnValue;
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} :
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function()
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{
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return null;
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};
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rbrace = /^(?:\{.*\}|\[.*\])$/;
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return function()
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{
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var cookies, splitOnSemiColons, cookieCount, i, splitOnEquals, name, rawValue, value;
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cookies = {};
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splitOnSemiColons = document.cookie.split( ';' );
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cookieCount = splitOnSemiColons.length;
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for( i = 0; i < cookieCount; i = i + 1 )
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{
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splitOnEquals = splitOnSemiColons[i].split( '=' );
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name = trim( splitOnEquals.shift() );
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if( splitOnEquals.length >= 1 )
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{
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rawValue = splitOnEquals.join( '=' );
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}
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else
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{
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rawValue = '';
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}
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try
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{
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value = decodeURIComponent( rawValue );
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}
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catch( e2 )
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{
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value = rawValue;
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}
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//Logic borrowed from http://jquery.com/ dataAttr method
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try
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{
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value = value === 'true' ?
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true :
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value === 'false' ?
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false :
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! isNaN( value ) ?
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parseFloat( value ) :
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rbrace.test( value ) ?
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parseJSON( value ) :
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value;
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}
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catch( e3 ) {}
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cookies[name] = value;
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}
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return cookies;
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};
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}() );
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Constructor = function(){};
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/**
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* get - get one, several, or all cookies
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*
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* @access public
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* @paramater Mixed cookieName - String:name of single cookie; Array:list of multiple cookie names; Void (no param):if you want all cookies
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* @return Mixed - Value of cookie as set; Null:if only one cookie is requested and is not found; Object:hash of multiple or all cookies (if multiple or all requested);
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*/
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Constructor.prototype.get = function( cookieName )
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{
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var returnValue, item, cookies;
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cookies = parseCookies();
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if( typeof cookieName === 'string' )
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{
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returnValue = ( typeof cookies[cookieName] !== 'undefined' ) ? cookies[cookieName] : null;
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}
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else if( typeof cookieName === 'object' && cookieName !== null )
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{
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returnValue = {};
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for( item in cookieName )
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{
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if( Object.prototype.hasOwnProperty.call( cookieName, item ) )
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{
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if( typeof cookies[cookieName[item]] !== 'undefined' )
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{
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returnValue[cookieName[item]] = cookies[cookieName[item]];
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}
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else
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{
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returnValue[cookieName[item]] = null;
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}
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}
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}
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}
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else
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{
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returnValue = cookies;
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}
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return returnValue;
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};
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/**
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* filter - get array of cookies whose names match the provided RegExp
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*
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* @access public
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* @paramater Object RegExp - The regular expression to match against cookie names
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* @return Mixed - Object:hash of cookies whose names match the RegExp
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*/
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Constructor.prototype.filter = function( cookieNameRegExp )
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{
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var cookieName, returnValue, cookies;
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returnValue = {};
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cookies = parseCookies();
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if( typeof cookieNameRegExp === 'string' )
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{
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cookieNameRegExp = new RegExp( cookieNameRegExp );
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}
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for( cookieName in cookies )
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{
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if( Object.prototype.hasOwnProperty.call( cookies, cookieName ) && cookieName.match( cookieNameRegExp ) )
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{
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returnValue[cookieName] = cookies[cookieName];
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}
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}
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return returnValue;
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};
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/**
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* set - set or delete a cookie with desired options
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*
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* @access public
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* @paramater String cookieName - name of cookie to set
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* @paramater Mixed value - Any JS value. If not a string, will be JSON encoded (http://code.google.com/p/cookies/wiki/JSON); NULL to delete
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* @paramater Object options - optional list of cookie options to specify
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* @return void
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*/
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Constructor.prototype.set = function( cookieName, value, options )
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{
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if( typeof options !== 'object' || options === null )
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{
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options = {};
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}
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// TODO: consider value serialization method to parallel parse cookies
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if( typeof value === 'undefined' || value === null )
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{
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value = '';
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options.hoursToLive = -8760;
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}
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else
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{
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//Logic borrowed from http://jquery.com/ dataAttr method and reversed
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value = value === true ?
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'true' :
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value === false ?
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'false' :
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! isNaN( value ) ?
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'' + value :
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value;
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if( typeof value !== 'string' )
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{
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if( typeof JSON === 'object' && JSON !== null && typeof JSON.stringify === 'function' )
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{
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value = JSON.stringify( value );
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}
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else
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{
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throw new Error( 'cookies.set() received value which could not be serialized.' );
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}
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}
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}
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var optionsString = assembleOptionsString( options );
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document.cookie = cookieName + '=' + encodeURIComponent( value ) + optionsString;
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};
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/**
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* del - delete a cookie (domain and path options must match those with which the cookie was set; this is really an alias for set() with parameters simplified for this use)
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*
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* @access public
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* @paramater MIxed cookieName - String name of cookie to delete, or Bool true to delete all
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* @paramater Object options - optional list of cookie options to specify ( path, domain )
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* @return void
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*/
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Constructor.prototype.del = function( cookieName, options )
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{
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var allCookies, name;
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allCookies = {};
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if( typeof options !== 'object' || options === null )
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{
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options = {};
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}
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if( typeof cookieName === 'boolean' && cookieName === true )
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{
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allCookies = this.get();
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}
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else if( typeof cookieName === 'string' )
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{
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allCookies[cookieName] = true;
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}
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for( name in allCookies )
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{
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if( Object.prototype.hasOwnProperty.call( allCookies, name ) && typeof name === 'string' && name !== '' )
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{
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this.set( name, null, options );
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}
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}
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};
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/**
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* test - test whether the browser is accepting cookies
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*
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* @access public
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* @return Boolean
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*/
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Constructor.prototype.test = function()
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{
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var returnValue, testName, testValue;
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testName = 'cookiesCT';
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testValue = 'data';
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this.set( testName, testValue );
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if( this.get( testName ) === testValue )
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{
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this.del( testName );
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returnValue = true;
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}
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return returnValue;
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};
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/**
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* setOptions - set default options for calls to cookie methods
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*
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* @access public
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* @param Object options - list of cookie options to specify
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* @return void
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*/
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Constructor.prototype.setOptions = function( options )
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{
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if( typeof options !== 'object' )
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{
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options = null;
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}
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defaultOptions = resolveOptions( options );
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};
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return new Constructor();
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}() );
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}( window ) );
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