https://ku-ma.net/js/jquery.cookie.js

1/*!
2 * jQuery Cookie Plugin v1.4.1
3 * https://github.com/carhartl/jquery-cookie
4 *
5 * Copyright 2013 Klaus Hartl
6 * Released under the MIT license
7 */
8(function (factory) {
9	if (typeof define === 'function' && define.amd) {
10		// AMD
11		define(['jquery'], factory);
12	} else if (typeof exports === 'object') {
13		// CommonJS
14		factory(require('jquery'));
15	} else {
16		// Browser globals
17		factory(jQuery);
18	}
19}(function ($) {
20
21
22	var pluses = /\+/g;
23
24
25	function encode(s) {
26		return config.raw ? s : encodeURIComponent(s);
27	}
28
29
30	function decode(s) {
31		return config.raw ? s : decodeURIComponent(s);
32	}
33
34
35	function stringifyCookieValue(value) {
36		return encode(config.json ? JSON.stringify(value) : String(value));
37	}
38
39
40	function parseCookieValue(s) {
41		if (s.indexOf('"') === 0) {
42			// This is a quoted cookie as according to RFC2068, unescape...
43			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
44		}
45
46
47		try {
48			// Replace server-side written pluses with spaces.
49			// If we can't decode the cookie, ignore it, it's unusable.
50			// If we can't parse the cookie, ignore it, it's unusable.
51			s = decodeURIComponent(s.replace(pluses, ' '));
52			return config.json ? JSON.parse(s) : s;
53		} catch(e) {}
54	}
55
56
57	function read(s, converter) {
58		var value = config.raw ? s : parseCookieValue(s);
59		return $.isFunction(converter) ? converter(value) : value;
60	}
61
62
63	var config = $.cookie = function (key, value, options) {
64
65
66		// Write
67
68
69		if (value !== undefined && !$.isFunction(value)) {
70			options = $.extend({}, config.defaults, options);
71
72
73			if (typeof options.expires === 'number') {
74				var days = options.expires, t = options.expires = new Date();
75				t.setTime(+t + days * 864e+5);
76			}
77
78
79			return (document.cookie = [
80				encode(key), '=', stringifyCookieValue(value),
81				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
82				options.path    ? '; path=' + options.path : '',
83				options.domain  ? '; domain=' + options.domain : '',
84				options.secure  ? '; secure' : ''
85			].join(''));
86		}
87
88
89		// Read
90
91
92		var result = key ? undefined : {};
93
94
95		// To prevent the for loop in the first place assign an empty array
96		// in case there are no cookies at all. Also prevents odd result when
97		// calling $.cookie().
98		var cookies = document.cookie ? document.cookie.split('; ') : [];
99
100
101		for (var i = 0, l = cookies.length; i < l; i++) {
102			var parts = cookies[i].split('=');
103			var name = decode(parts.shift());
104			var cookie = parts.join('=');
105
106
107			if (key && key === name) {
108				// If second argument (value) is a function it's a converter...
109				result = read(cookie, value);
110				break;
111			}
112
113
114			// Prevent storing a cookie that we couldn't decode.
115			if (!key && (cookie = read(cookie)) !== undefined) {
116				result[name] = cookie;
117			}
118		}
119
120
121		return result;
122	};
123
124
125	config.defaults = {};
126
127
128	$.removeCookie = function (key, options) {
129		if ($.cookie(key) === undefined) {
130			return false;
131		}
132
133
134		// Must not alter options, thus extending a fresh object...
135		$.cookie(key, '', $.extend({}, options, { expires: -1 }));
136		return !$.cookie(key);
137	};
138
139
140}));