JS cookie handle

Author: very-twi

web/js/jquery.cookie.js

@@ -0,0 +1,117 @@
+/*!
+ * jQuery Cookie Plugin v1.4.1
+ * https://github.com/carhartl/jquery-cookie
+ *
+ * Copyright 2006, 2014 Klaus Hartl
+ * Released under the MIT license
+ */
+(function (factory) {
+    if (typeof define === 'function' && define.amd) {
+        // AMD
+        define(['jquery'], factory);
+    } else if (typeof exports === 'object') {
+        // CommonJS
+        factory(require('jquery'));
+    } else {
+        // Browser globals
+        factory(jQuery);
+    }
+}(function ($) {
+
+    var pluses = /\+/g;
+
+    function encode(s) {
+        return config.raw ? s : encodeURIComponent(s);
+    }
+
+    function decode(s) {
+        return config.raw ? s : decodeURIComponent(s);
+    }
+
+    function stringifyCookieValue(value) {
+        return encode(config.json ? JSON.stringify(value) : String(value));
+    }
+
+    function parseCookieValue(s) {
+        if (s.indexOf('"') === 0) {
+            // This is a quoted cookie as according to RFC2068, unescape...
+            s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
+        }
+
+        try {
+            // Replace server-side written pluses with spaces.
+            // If we can't decode the cookie, ignore it, it's unusable.
+            // If we can't parse the cookie, ignore it, it's unusable.
+            s = decodeURIComponent(s.replace(pluses, ' '));
+            return config.json ? JSON.parse(s) : s;
+        } catch(e) {}
+    }
+
+    function read(s, converter) {
+        var value = config.raw ? s : parseCookieValue(s);
+        return $.isFunction(converter) ? converter(value) : value;
+    }
+
+    var config = $.cookie = function (key, value, options) {
+
+        // Write
+
+        if (arguments.length > 1 && !$.isFunction(value)) {
+            options = $.extend({}, config.defaults, options);
+
+            if (typeof options.expires === 'number') {
+                var days = options.expires, t = options.expires = new Date();
+                t.setTime(+t + days * 864e+5);
+            }
+
+            return (document.cookie = [
+                encode(key), '=', stringifyCookieValue(value),
+                options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
+                options.path    ? '; path=' + options.path : '',
+                options.domain  ? '; domain=' + options.domain : '',
+                options.secure  ? '; secure' : ''
+            ].join(''));
+        }
+
+        // Read
+
+        var result = key ? undefined : {};
+
+        // To prevent the for loop in the first place assign an empty array
+        // in case there are no cookies at all. Also prevents odd result when
+        // calling $.cookie().
+        var cookies = document.cookie ? document.cookie.split('; ') : [];
+
+        for (var i = 0, l = cookies.length; i < l; i++) {
+            var parts = cookies[i].split('=');
+            var name = decode(parts.shift());
+            var cookie = parts.join('=');
+
+            if (key && key === name) {
+                // If second argument (value) is a function it's a converter...
+                result = read(cookie, value);
+                break;
+            }
+
+            // Prevent storing a cookie that we couldn't decode.
+            if (!key && (cookie = read(cookie)) !== undefined) {
+                result[name] = cookie;
+            }
+        }
+
+        return result;
+    };
+
+    config.defaults = {};
+
+    $.removeCookie = function (key, options) {
+        if ($.cookie(key) === undefined) {
+            return false;
+        }
+
+        // Must not alter options, thus extending a fresh object...
+        $.cookie(key, '', $.extend({}, options, { expires: -1 }));
+        return !$.cookie(key);
+    };
+
+}));