85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
/**
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* Copyright (c) 2021 ESHA Research
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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* Creates a store area that uses a single cookie as the backing storage.
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* This gives you the store API for a specific 'store' cookie that your backend
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* can access too. It could definitely use more testing.
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*
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* Status: BETA - unsupported, useful, needs testing
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*/
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;(function(window, document, store, _) {
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var C = _.cookie = {// and that's good enough for me
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name: 'store',
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maxAge: 60*60*24*365*10,
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suffix: ';path=/;sameSite=strict',
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encode: function(state) {
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return encodeURIComponent(JSON.stringify(state));
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},
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decode: function(state) {
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return JSON.parse(decodeURIComponent(state));
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}
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};
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C.all = function() {
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return C.read(C.name) || {};
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};
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C.read = function(name) {
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var match = document.cookie.match(new RegExp("(^| )"+(name||C.name)+"=([^;]+)"));
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return match ? C.decode(match[2]) : null;
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};
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C.write = function(state, name) {
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document.cookie = (name||C.name)+"="+C.encode(state)+";max-age="+C.maxAge+C.suffix;
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};
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C.remove = function(name) {
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document.cookie = (name||C.name)+"=;expires=Thu, 01 Jan 1970 00:00:01 GMT"+C.suffix;
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};
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C.area = {
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key: function(i) {
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var c = 0,
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state = C.all();
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for (var k in state) {
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if (state.hasOwnProperty(k) && i === c++) {
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return k;
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}
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}
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},
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setItem: function(k, v) {
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var state = C.all();
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state[k] = v;
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C.write(state);
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},
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getItem: function(k) {
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var state = C.all();
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return state.hasOwnProperty(k) ? state[k] : null;
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},
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has: function(k) {
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return C.all().hasOwnProperty(k);
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},
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removeItem: function(k) {
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var state = C.read(C.name);
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delete state[k];
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C.write(state);
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},
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clear: C.remove
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};
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Object.defineProperty(C.area, "length", {
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get: function() {
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var ln = 0,
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state = C.all();
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for (var k in state) {
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if (state.hasOwnProperty(k)) {
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ln++;
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}
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}
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return ln;
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}
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});
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// create the store api for this storage
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store.area("cookie", C.area);
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})(window, document, window.store, window.store._);
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