85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
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/* globals getStyles, saveStyle */
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'use strict';
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var update = {
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fetch: (resource, callback) => {
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let req = new XMLHttpRequest();
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let [url, data] = resource.split('?');
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req.open('POST', url, true);
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req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
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req.onload = () => callback(req.responseText);
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req.onerror = req.ontimeout = () => callback();
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req.send(data);
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},
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md5Check: (style, callback) => {
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let req = new XMLHttpRequest();
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req.open('GET', style.md5Url, true);
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req.onload = () => {
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let md5 = req.responseText;
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if (md5 && md5 !== style.originalMd5) {
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callback(style);
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}
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else {
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console.log(`"${style.name}" style is up-to-date`);
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}
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};
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req.onerror = req.ontimeout = () => console.log('Error validating MD5 checksum');
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req.send();
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},
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list: (callback) => {
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getStyles({}, (styles) => callback(styles.filter(style => style.updateUrl)));
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},
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perform: () => {
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// from install.js
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function arraysAreEqual (a, b) {
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// treat empty array and undefined as equivalent
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if (typeof a === 'undefined') {
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return (typeof b === 'undefined') || (b.length === 0);
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}
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if (typeof b === 'undefined') {
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return (typeof a === 'undefined') || (a.length === 0);
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}
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if (a.length !== b.length) {
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return false;
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}
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return a.every(function (entry) {
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return b.indexOf(entry) !== -1;
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});
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}
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// from install.js
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function sectionsAreEqual(a, b) {
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if (a.code !== b.code) {
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return false;
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}
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return ['urls', 'urlPrefixes', 'domains', 'regexps'].every(function (attribute) {
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return arraysAreEqual(a[attribute], b[attribute]);
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});
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}
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update.list(styles => {
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styles.forEach(style => update.md5Check(style, style => update.fetch(style.updateUrl, response => {
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if (response) {
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let json = JSON.parse(response);
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if (json.sections.length === style.sections.length) {
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if (json.sections.every((section) => {
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return style.sections.some(installedSection => sectionsAreEqual(section, installedSection));
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})) {
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return console.log('everything is the same');
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}
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json.method = 'saveStyle';
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json.id = style.id;
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saveStyle(json, function () {
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console.log(`"${style.name}" style is updated`);
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});
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}
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else {
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console.log('style sections mismatch');
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}
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}
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})));
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});
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}
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};
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