312 lines
10 KiB
JavaScript
312 lines
10 KiB
JavaScript
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var browser = browser || chrome;
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var hostname = typeof (location) != 'undefined' ? location.hostname : '';
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if (hostname.startsWith('www.')) {
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hostname = hostname.substring(4);
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}
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if (hostname.endsWith('.reddit.com')) hostname = 'reddit.com';
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var myself = null;
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if (hostname == 'reddit.com') {
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myself = document.querySelector('#header-bottom-right .user a');
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if (!myself) {
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var m = document.querySelector('#USER_DROPDOWN_ID');
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if (m) {
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m = [...m.querySelectorAll('*')].filter(x => x.childNodes.length == 1 && x.firstChild.nodeType == 3).map(x => x.textContent)[0]
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if (m) myself = 'reddit.com/user/' + m;
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}
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}
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}
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if (hostname == 'facebook.com') {
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var m = document.querySelector("[id^='profile_pic_header_']")
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if (m) myself = 'facebook.com/' + m.id.match(/header_(\d+)/)[1];
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}
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if (hostname == 'twitter.com') {
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myself = document.querySelector('.DashUserDropdown-userInfo a');
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}
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if (myself && (myself.href || myself.startsWith('http:') || myself.startsWith('https:')))
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myself = getIdentifier(myself);
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//console.log('Myself: ' + myself)
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function init() {
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updateAllLabels();
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var observer = new MutationObserver(mutationsList => {
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for (var mutation of mutationsList) {
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if (mutation.type == 'childList') {
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for (var node of mutation.addedNodes) {
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if (node.tagName == 'A') {
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initLink(node);
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}
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if (node.querySelectorAll) {
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for (var subnode of node.querySelectorAll('a')) {
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initLink(subnode);
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}
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}
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}
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}
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}
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solvePendingLabels();
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});
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observer.observe(document.body, {
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childList: true,
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subtree: true
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});
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}
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function updateAllLabels(refresh) {
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if (refresh) knownLabels = {};
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var links = document.links;
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for (var i = 0; i < links.length; i++) {
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var a = links[i];
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initLink(a);
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}
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solvePendingLabels();
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}
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var knownLabels = {};
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var labelsToSolve = [];
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function solvePendingLabels() {
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if (!labelsToSolve.length) return;
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var uniqueIdentifiers = Array.from(new Set(labelsToSolve.map(x => x.identifier)));
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var tosolve = labelsToSolve;
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labelsToSolve = [];
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browser.runtime.sendMessage({ ids: uniqueIdentifiers, myself: myself }, response => {
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for (item of tosolve) {
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var label = response[item.identifier];
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knownLabels[item.identifier] = label || '';
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applyLabel(item.element, item.identifier);
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}
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});
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}
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function applyLabel(a, identifier) {
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if (a.assignedCssLabel) {
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a.classList.remove('assigned-label-' + a.assignedCssLabel);
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a.classList.remove('has-assigned-label');
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}
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var label = a.assignedLabel = knownLabels[identifier] || '';
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// https://rationalwiki.org/wiki/RationalWiki:Webshites
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a.assignedCssLabel =
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!label ? '' :
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label == 'liked' ? 'liked' :
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label == 'disliked' ? 'disliked' :
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label == 'rw-radfem' || label == 'terf' || label == 'transphobic' || label == 'anti-lgbt' ? 'transphobic' :
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label == 't-friendly' ? 't-friendly' :
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label == 'rw-skeptic' || label == 'rw-liberal' || label == 'rw-feminism' || label == 'science' ? 'good' :
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'bad';
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if (a.assignedCssLabel) {
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a.classList.add('assigned-label-' + a.assignedCssLabel);
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a.classList.add('has-assigned-label');
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}
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}
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function initLink(a) {
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var identifier = getIdentifier(a);
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if (!identifier) return;
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var label = knownLabels[identifier];
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if (label === undefined) {
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labelsToSolve.push({ element: a, identifier: identifier });
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return;
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}
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applyLabel(a, identifier);
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}
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var currentlySelectedEntity = null;
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function isHostedOn(/** @type {string}*/fullHost, /** @type {string}*/baseHost) {
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if (baseHost.length > fullHost.length) return false;
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if (baseHost.length == fullHost.length) return baseHost == fullHost;
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var k = fullHost.charCodeAt(fullHost.length - baseHost.length - 1);
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if (k == 0x2E) return fullHost.endsWith(baseHost);
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else return false;
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}
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function getQuery(/** @type {string}*/search) {
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if (!search) return {};
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var s = {};
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if (search.startsWith('?')) search = search.substring(1);
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for (var pair of search.split('&')) {
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var z = pair.split('=');
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if (z.length != 2) continue;
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s[decodeURIComponent(z[0]).replace(/\+/g, ' ')] = decodeURIComponent(z[1].replace(/\+/g, ' '));
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}
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return s;
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}
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function takeFirstPathComponents(/** @type {string}*/path, /** @type {number}*/num) {
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var m = path.split('/')
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m = m.slice(1, 1 + num);
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if (m.length && !m[m.length - 1]) m.length--;
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return '/' + m.join('/');
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}
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function getCurrentFacebookPageId() {
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// page
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var elem = document.querySelector("a[rel=theater][aria-label='Profile picture']");
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if (elem) {
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var p = elem.href.match(/facebook\.com\/(\d+)/)
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if (p) return p[1];
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}
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// page (does not work if page is loaded directly)
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elem = document.querySelector("[ajaxify^='/page_likers_and_visitors_dialog']")
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if (elem) return elem.getAttribute('ajaxify').match(/\/(\d+)\//)[1];
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// group
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elem = document.querySelector("[id^='headerAction_']");
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if (elem) return elem.id.match(/_(\d+)/)[1];
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// profile
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elem = document.querySelector('#pagelet_timeline_main_column');
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if (elem && elem.dataset.gt) return JSON.parse(elem.dataset.gt).profile_owner;
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return null;
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}
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function getIdentifier(urlstr) {
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if (!urlstr) return null;
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if (hostname == 'facebook.com') {
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var parent = urlstr.parentElement;
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if (parent && (parent.tagName == 'H1' || parent.id == 'fb-timeline-cover-name')) {
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var id = getCurrentFacebookPageId();
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//console.log('Current fb page: ' + id)
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if (id)
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return 'facebook.com/' + id;
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}
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if (urlstr.dataset) {
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var hovercard = urlstr.dataset.hovercard;
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if (hovercard) {
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var id = hovercard.match(/id=(\d+)/)[1];
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if (id)
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return 'facebook.com/' + id;
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}
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var gt = urlstr.dataset.gt;
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if (gt) {
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var gtParsed = JSON.parse(gt);
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if (gtParsed.engagement && gtParsed.engagement.eng_tid) {
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return 'facebook.com/' + gtParsed.engagement.eng_tid;
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}
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}
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var p = urlstr;
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while (p) {
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var bt = p.dataset.bt;
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if (bt) {
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var btParsed = JSON.parse(bt);
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if (btParsed.id) return 'facebook.com/' + btParsed.id;
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}
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p = p.parentElement;
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}
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}
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}
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if (urlstr.href !== undefined) urlstr = urlstr.href;
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if (!urlstr) return null;
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if (urlstr.endsWith('#')) return null;
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try {
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var url = new URL(urlstr);
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} catch (e) {
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return null;
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}
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if (url.protocol != 'http:' && url.protocol != 'https:') return null;
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if (url.href.indexOf('http', 1) != -1) {
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var s = getQuery(url.search);
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urlstr = null;
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for (var key in s) {
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if (s.hasOwnProperty(key)) {
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var element = s[key];
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if (element.startsWith('http:') || element.startsWith('https')) {
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urlstr = element;
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break;
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}
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}
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}
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if (urlstr == null) {
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urlstr = url.href.substring(url.href.indexOf('http', 1))
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}
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try {
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url = new URL(urlstr);
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} catch (e) { }
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}
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var host = url.hostname;
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if (isHostedOn(host, 'web.archive.org')) {
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var match = url.href.match(/\/web\/\w+\/(.*)/);
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if (!match) return null;
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url = new URL('http://' + match[1]);
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host = url.hostname;
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}
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if (host.startsWith('www.')) host = host.substring(4);
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if (isHostedOn(host, 'facebook.com')) {
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var s = getQuery(url.search);
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var p = url.pathname.replace('/pg/', '/');
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return 'facebook.com/' + (s.story_fbid || s.set || s.story_fbid || s._ft_ || s.ft_id || s.id || takeFirstPathComponents(p, p.startsWith('/groups/') ? 2 : 1).substring(1));
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}
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if (isHostedOn(host, 'reddit.com')) {
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return 'reddit.com' + takeFirstPathComponents(url.pathname.replace('/u/', '/user/'), 2).toLowerCase();
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}
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if (isHostedOn(host, 'twitter.com')) {
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return 'twitter.com' + takeFirstPathComponents(url.pathname, 1).toLowerCase()
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}
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if (isHostedOn(host, 'youtube.com')) {
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return 'youtube.com' + takeFirstPathComponents(url.pathname, 2);
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}
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if (host.indexOf('.blogspot.') != -1) {
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return host.match(/([a-zA-Z0-9\-]*)\.blogspot/)[1].toLowerCase() + '.blogspot.com';
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}
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var id = host;
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if (id.startsWith('www.')) id = id.substr(4);
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if (id.startsWith('m.')) id = id.substr(2);
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return id.toLowerCase();
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}
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init();
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browser.runtime.onMessage.addListener((message, sender, sendResponse) => {
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if (message.updateAllLabels) {
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updateAllLabels(true);
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return;
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}
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message.contextPage = window.location.href;
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var target = message.elementId ? browser.menus.getTargetElement(message.elementId) : null;
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//console.log(message.url)
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var links = target ? [target] : [...document.getElementsByTagName('A')].filter(x => x.href == message.url)
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//if (!links.length) console.log('Already empty :(')
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var identifier = links.length ? getIdentifier(links[0]) : getIdentifier(message.url);
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if (!identifier) return;
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var snippets = links.map(node => {
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while (node) {
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var classList = node.classList;
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if (hostname == 'facebook.com' && node.dataset && node.dataset.ftr) return node;
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if (hostname == 'reddit.com' && (classList.contains('scrollerItem') || classList.contains('thing') || classList.contains('Comment'))) return node;
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if (hostname == 'twitter.com' && (classList.contains('stream-item'))) return node;
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node = node.parentElement;
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}
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//console.log('Reached the top without a satisfying element')
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return null;
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})
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snippets = snippets.filter((item, pos) => item && snippets.indexOf(item) == pos);
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message.identifier = identifier;
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message.snippets = snippets.filter((item, pos) => pos <= 10).map(x => x.outerHTML);
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sendResponse(message);
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})
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