mirror of
https://github.com/MarshalX/telegram-crawler.git
synced 2024-12-11 09:23:40 +01:00
515 lines
No EOL
18 KiB
JavaScript
515 lines
No EOL
18 KiB
JavaScript
(function(window) {
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(function(window){
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window.__parseFunction = function(__func, __attrs) {
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__attrs = __attrs || [];
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__func = '(function(' + __attrs.join(',') + '){' + __func + '})';
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return window.execScript ? window.execScript(__func) : eval(__func);
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}
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}(window));
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(function(window){
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function addEvent(el, event, handler) {
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var events = event.split(/\s+/);
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for (var i = 0; i < events.length; i++) {
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if (el.addEventListener) {
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el.addEventListener(events[i], handler);
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} else {
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el.attachEvent('on' + events[i], handler);
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}
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}
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}
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function removeEvent(el, event, handler) {
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var events = event.split(/\s+/);
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for (var i = 0; i < events.length; i++) {
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if (el.removeEventListener) {
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el.removeEventListener(events[i], handler);
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} else {
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el.detachEvent('on' + events[i], handler);
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}
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}
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}
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function getCssProperty(el, prop) {
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if (window.getComputedStyle) {
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return window.getComputedStyle(el, '').getPropertyValue(prop) || null;
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} else if (el.currentStyle) {
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return el.currentStyle[prop] || null;
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}
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return null;
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}
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function geById(el_or_id) {
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if (typeof el_or_id == 'string' || el_or_id instanceof String) {
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return document.getElementById(el_or_id);
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} else if (el_or_id instanceof HTMLElement) {
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return el_or_id;
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}
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return null;
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}
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var getWidgetsOrigin = function(default_origin, dev_origin) {
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var link = document.createElement('A'), origin;
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link.href = document.currentScript && document.currentScript.src || default_origin;
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origin = link.origin || link.protocol + '//' + link.hostname;
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if (origin == 'https://telegram.org') {
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origin = default_origin;
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} else if (origin == 'https://telegram-js.azureedge.net' || origin == 'https://tg.dev') {
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origin = dev_origin;
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}
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return origin;
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};
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var getPageCanonical = function() {
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var a = document.createElement('A'), link, href;
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if (document.querySelector) {
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link = document.querySelector('link[rel="canonical"]');
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if (link && (href = link.getAttribute('href'))) {
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a.href = href;
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return a.href;
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}
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} else {
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var links = document.getElementsByTagName('LINK');
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for (var i = 0; i < links.length; i++) {
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if ((link = links[i]) &&
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(link.getAttribute('rel') == 'canonical') &&
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(href = link.getAttribute('href'))) {
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a.href = href;
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return a.href;
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}
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}
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}
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return false;
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};
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function getXHR() {
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if (navigator.appName == "Microsoft Internet Explorer"){
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return new ActiveXObject("Microsoft.XMLHTTP");
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} else {
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return new XMLHttpRequest();
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}
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}
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if (!window.Telegram) {
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window.Telegram = {};
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}
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if (!window.Telegram.__WidgetUuid) {
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window.Telegram.__WidgetUuid = 0;
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}
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if (!window.Telegram.__WidgetLastId) {
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window.Telegram.__WidgetLastId = 0;
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}
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if (!window.Telegram.__WidgetCallbacks) {
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window.Telegram.__WidgetCallbacks = {};
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}
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function postMessageToIframe(iframe, event, data, callback) {
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try {
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data = data || {};
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data.event = event;
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if (callback) {
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data._cb = ++window.Telegram.__WidgetLastId;
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window.Telegram.__WidgetCallbacks[data._cb] = {
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iframe: iframe,
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callback: callback
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};
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}
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iframe.contentWindow.postMessage(JSON.stringify(data), '*');
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} catch(e) {}
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}
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function initWidget(widgetEl) {
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var widgetId, widgetElId, widgetsOrigin, existsEl,
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src, styles = {}, allowedAttrs = [],
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defWidth, defHeight, scrollable = false, onInitAuthUser, onAuthUser, onUnauth;
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if (!widgetEl.tagName ||
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!(widgetEl.tagName.toUpperCase() == 'SCRIPT' ||
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widgetEl.tagName.toUpperCase() == 'BLOCKQUOTE' &&
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widgetEl.classList.contains('telegram-post'))) {
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return null;
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}
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if (widgetEl._iframe) {
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return widgetEl._iframe;
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}
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if (widgetId = widgetEl.getAttribute('data-telegram-post')) {
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var comment = widgetEl.getAttribute('data-comment') || '';
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widgetsOrigin = getWidgetsOrigin('https://t.me', 'https://post.tg.dev');
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widgetElId = 'telegram-post-' + widgetId.replace(/[^a-z0-9_]/ig, '-') + (comment ? '-comment' + comment : '');
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src = widgetsOrigin + '/' + widgetId + '?embed=1';
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allowedAttrs = ['comment', 'userpic', 'single?', 'color', 'dark', 'dark_color'];
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defWidth = widgetEl.getAttribute('data-width') || '100%';
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defHeight = '';
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styles.minWidth = '320px';
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}
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else if (widgetId = widgetEl.getAttribute('data-telegram-discussion')) {
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widgetsOrigin = getWidgetsOrigin('https://t.me', 'https://post.tg.dev');
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widgetElId = 'telegram-discussion-' + widgetId.replace(/[^a-z0-9_]/ig, '-') + '-' + (++window.Telegram.__WidgetUuid);
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var websitePageUrl = widgetEl.getAttribute('data-page-url');
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if (!websitePageUrl) {
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websitePageUrl = getPageCanonical();
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}
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src = widgetsOrigin + '/' + widgetId + '?embed=1&discussion=1' + (websitePageUrl ? '&page_url=' + encodeURIComponent(websitePageUrl) : '');
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allowedAttrs = ['comments_limit', 'color', 'colorful', 'dark', 'dark_color', 'width', 'height'];
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defWidth = widgetEl.getAttribute('data-width') || '100%';
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defHeight = widgetEl.getAttribute('data-height') || 0;
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styles.minWidth = '320px';
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if (defHeight > 0) {
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scrollable = true;
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}
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}
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else if (widgetEl.hasAttribute('data-telegram-login')) {
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widgetId = widgetEl.getAttribute('data-telegram-login');
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widgetsOrigin = getWidgetsOrigin('https://oauth.telegram.org', 'https://oauth.tg.dev');
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widgetElId = 'telegram-login-' + widgetId.replace(/[^a-z0-9_]/ig, '-');
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src = widgetsOrigin + '/embed/' + widgetId + '?origin=' + encodeURIComponent(location.origin || location.protocol + '//' + location.hostname);
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allowedAttrs = ['size', 'userpic', 'init_auth', 'request_access', 'radius', 'min_width', 'max_width', 'lang'];
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defWidth = 186;
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defHeight = 28;
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if (widgetEl.hasAttribute('data-size')) {
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var size = widgetEl.getAttribute('data-size');
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if (size == 'small') defWidth = 148, defHeight = 20;
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else if (size == 'large') defWidth = 238, defHeight = 40;
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}
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if (widgetEl.hasAttribute('data-onauth')) {
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onInitAuthUser = onAuthUser = __parseFunction(widgetEl.getAttribute('data-onauth'), ['user']);
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}
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else if (widgetEl.hasAttribute('data-auth-url')) {
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var a = document.createElement('A');
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a.href = widgetEl.getAttribute('data-auth-url');
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onAuthUser = function(user) {
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var authUrl = a.href;
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authUrl += (authUrl.indexOf('?') >= 0) ? '&' : '?';
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var params = [];
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for (var key in user) {
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params.push(key + '=' + encodeURIComponent(user[key]));
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}
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authUrl += params.join('&');
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location.href = authUrl;
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};
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}
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if (widgetEl.hasAttribute('data-onunauth')) {
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onUnauth = __parseFunction(widgetEl.getAttribute('data-onunauth'));
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}
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}
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else if (widgetId = widgetEl.getAttribute('data-telegram-share-url')) {
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widgetsOrigin = getWidgetsOrigin('https://t.me', 'https://post.tg.dev');
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widgetElId = 'telegram-share-' + window.btoa(widgetId);
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src = widgetsOrigin + '/share/embed?origin=' + encodeURIComponent(location.origin || location.protocol + '//' + location.hostname);
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allowedAttrs = ['telegram-share-url', 'comment', 'size', 'text'];
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defWidth = 60;
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defHeight = 20;
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if (widgetEl.getAttribute('data-size') == 'large') {
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defWidth = 76;
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defHeight = 28;
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}
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}
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else {
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return null;
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}
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existsEl = document.getElementById(widgetElId);
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if (existsEl) {
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return existsEl;
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}
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for (var i = 0; i < allowedAttrs.length; i++) {
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var attr = allowedAttrs[i];
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var novalue = attr.substr(-1) == '?';
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if (novalue) {
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attr = attr.slice(0, -1);
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}
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var data_attr = 'data-' + attr.replace(/_/g, '-');
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if (widgetEl.hasAttribute(data_attr)) {
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var attr_value = novalue ? '1' : encodeURIComponent(widgetEl.getAttribute(data_attr));
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src += '&' + attr + '=' + attr_value;
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}
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}
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function getCurCoords(iframe) {
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var docEl = document.documentElement;
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var frect = iframe.getBoundingClientRect();
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return {
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frameTop: frect.top,
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frameBottom: frect.bottom,
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frameLeft: frect.left,
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frameRight: frect.right,
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frameWidth: frect.width,
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frameHeight: frect.height,
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scrollTop: window.pageYOffset,
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scrollLeft: window.pageXOffset,
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clientWidth: docEl.clientWidth,
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clientHeight: docEl.clientHeight
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};
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}
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function visibilityHandler() {
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if (isVisible(iframe, 50)) {
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postMessageToIframe(iframe, 'visible', {frame: widgetElId});
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}
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}
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function focusHandler() {
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postMessageToIframe(iframe, 'focus', {has_focus: document.hasFocus()});
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}
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function postMessageHandler(event) {
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if (event.source !== iframe.contentWindow ||
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event.origin != widgetsOrigin) {
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return;
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}
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try {
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var data = JSON.parse(event.data);
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} catch(e) {
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var data = {};
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}
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if (data.event == 'resize') {
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if (data.height) {
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iframe.style.height = data.height + 'px';
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}
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if (data.width) {
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iframe.style.width = data.width + 'px';
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}
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}
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else if (data.event == 'ready') {
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focusHandler();
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}
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else if (data.event == 'visible_off') {
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removeEvent(window, 'scroll', visibilityHandler);
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removeEvent(window, 'resize', visibilityHandler);
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}
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else if (data.event == 'get_coords') {
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postMessageToIframe(iframe, 'callback', {
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_cb: data._cb,
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value: getCurCoords(iframe)
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});
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}
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else if (data.event == 'scroll_to') {
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try {
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window.scrollTo(data.x || 0, data.y || 0);
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} catch(e) {}
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}
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else if (data.event == 'auth_user') {
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if (data.init) {
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onInitAuthUser && onInitAuthUser(data.auth_data);
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} else {
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onAuthUser && onAuthUser(data.auth_data);
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}
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}
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else if (data.event == 'unauthorized') {
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onUnauth && onUnauth();
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}
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else if (data.event == 'callback') {
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var cb_data = null;
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if (cb_data = window.Telegram.__WidgetCallbacks[data._cb]) {
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if (cb_data.iframe === iframe) {
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cb_data.callback(data.value);
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delete window.Telegram.__WidgetCallbacks[data._cb];
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}
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} else {
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console.warn('Callback #' + data._cb + ' not found');
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}
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}
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}
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var iframe = document.createElement('iframe');
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iframe.id = widgetElId;
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iframe.src = src;
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iframe.width = defWidth;
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iframe.height = defHeight;
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iframe.setAttribute('frameborder', '0');
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if (!scrollable) {
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iframe.setAttribute('scrolling', 'no');
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iframe.style.overflow = 'hidden';
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}
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iframe.style.border = 'none';
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for (var prop in styles) {
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iframe.style[prop] = styles[prop];
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}
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if (widgetEl.parentNode) {
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widgetEl.parentNode.insertBefore(iframe, widgetEl);
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if (widgetEl.tagName.toUpperCase() == 'BLOCKQUOTE') {
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widgetEl.parentNode.removeChild(widgetEl);
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}
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}
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widgetEl._iframe = iframe;
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addEvent(iframe, 'load', function() {
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removeEvent(iframe, 'load', visibilityHandler);
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addEvent(window, 'scroll', visibilityHandler);
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addEvent(window, 'resize', visibilityHandler);
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visibilityHandler();
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});
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addEvent(window, 'focus blur', focusHandler);
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addEvent(window, 'message', postMessageHandler);
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return iframe;
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}
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function isVisible(el, padding) {
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var node = el, val;
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var visibility = getCssProperty(node, 'visibility');
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if (visibility == 'hidden') return false;
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while (node) {
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if (node === document.documentElement) break;
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var display = getCssProperty(node, 'display');
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if (display == 'none') return false;
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var opacity = getCssProperty(node, 'opacity');
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if (opacity !== null && opacity < 0.1) return false;
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node = node.parentNode;
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}
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if (el.getBoundingClientRect) {
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padding = +padding || 0;
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var rect = el.getBoundingClientRect();
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var html = document.documentElement;
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if (rect.bottom < padding ||
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rect.right < padding ||
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rect.top > (window.innerHeight || html.clientHeight) - padding ||
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rect.left > (window.innerWidth || html.clientWidth) - padding) {
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return false;
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}
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}
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return true;
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}
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function getAllWidgets() {
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var widgets = [];
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if (document.querySelectorAll) {
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widgets = document.querySelectorAll('script[data-telegram-post],blockquote.telegram-post,script[data-telegram-discussion],script[data-telegram-login],script[data-telegram-share-url]');
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} else {
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widgets = Array.prototype.slice.apply(document.getElementsByTagName('SCRIPT'));
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widgets = widgets.concat(Array.prototype.slice.apply(document.getElementsByTagName('BLOCKQUOTE')));
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}
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return widgets;
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}
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function getWidgetInfo(el_or_id, callback) {
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var e = null, iframe = null;
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if (el = geById(el_or_id)) {
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if (el.tagName &&
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el.tagName.toUpperCase() == 'IFRAME') {
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iframe = el;
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} else if (el._iframe) {
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iframe = el._iframe;
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}
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if (iframe && callback) {
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postMessageToIframe(iframe, 'get_info', {}, callback);
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}
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}
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}
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function setWidgetOptions(options, el_or_id) {
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var e = null, iframe = null;
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if (typeof el_or_id === 'undefined') {
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var widgets = getAllWidgets();
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for (var i = 0; i < widgets.length; i++) {
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if (iframe = widgets[i]._iframe) {
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postMessageToIframe(iframe, 'set_options', {options: options});
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}
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}
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} else {
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if (el = geById(el_or_id)) {
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if (el.tagName &&
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el.tagName.toUpperCase() == 'IFRAME') {
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iframe = el;
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} else if (el._iframe) {
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iframe = el._iframe;
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}
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if (iframe) {
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postMessageToIframe(iframe, 'set_options', {options: options});
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}
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}
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}
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}
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if (!document.currentScript ||
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!initWidget(document.currentScript)) {
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var widgets = getAllWidgets();
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for (var i = 0; i < widgets.length; i++) {
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initWidget(widgets[i]);
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}
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}
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var TelegramLogin = {
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popups: {},
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auth: function(options, callback) {
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var bot_id = parseInt(options.bot_id);
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if (!bot_id) {
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throw new Error('Bot id required');
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}
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var width = 550;
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var height = 470;
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var left = Math.max(0, (screen.width - width) / 2) + (screen.availLeft | 0),
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top = Math.max(0, (screen.height - height) / 2) + (screen.availTop | 0);
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var onMessage = function (event) {
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try {
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var data = JSON.parse(event.data);
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} catch(e) {
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var data = {};
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}
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if (!TelegramLogin.popups[bot_id]) return;
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if (event.source !== TelegramLogin.popups[bot_id].window) return;
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if (data.event == 'auth_result') {
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onAuthDone(data.result);
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}
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};
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var onAuthDone = function (authData) {
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if (!TelegramLogin.popups[bot_id]) return;
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if (TelegramLogin.popups[bot_id].authFinished) return;
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callback && callback(authData);
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TelegramLogin.popups[bot_id].authFinished = true;
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removeEvent(window, 'message', onMessage);
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};
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var checkClose = function(bot_id) {
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if (!TelegramLogin.popups[bot_id]) return;
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if (!TelegramLogin.popups[bot_id].window ||
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TelegramLogin.popups[bot_id].window.closed) {
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return TelegramLogin.getAuthData(options, function(origin, authData) {
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onAuthDone(authData);
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});
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}
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setTimeout(checkClose, 100, bot_id);
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}
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var popup_url = Telegram.Login.widgetsOrigin + '/auth?bot_id=' + encodeURIComponent(options.bot_id) + '&origin=' + encodeURIComponent(location.origin || location.protocol + '//' + location.hostname) + (options.request_access ? '&request_access=' + encodeURIComponent(options.request_access) : '') + (options.lang ? '&lang=' + encodeURIComponent(options.lang) : '');
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var popup = window.open(popup_url, 'telegram_oauth_bot' + bot_id, 'width=' + width + ',height=' + height + ',left=' + left + ',top=' + top + ',status=0,location=0,menubar=0,toolbar=0');
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TelegramLogin.popups[bot_id] = {
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window: popup,
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authFinished: false
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};
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if (popup) {
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addEvent(window, 'message', onMessage);
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popup.focus();
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checkClose(bot_id);
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}
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},
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getAuthData: function(options, callback) {
|
|
var bot_id = parseInt(options.bot_id);
|
|
if (!bot_id) {
|
|
throw new Error('Bot id required');
|
|
}
|
|
var xhr = getXHR();
|
|
var url = Telegram.Login.widgetsOrigin + '/auth/get';
|
|
xhr.open('POST', url);
|
|
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
|
|
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
|
|
xhr.onreadystatechange = function() {
|
|
if (xhr.readyState == 4) {
|
|
if (typeof xhr.responseBody == 'undefined' && xhr.responseText) {
|
|
try {
|
|
var result = JSON.parse(xhr.responseText);
|
|
} catch(e) {
|
|
var result = {};
|
|
}
|
|
if (result.user) {
|
|
callback(result.origin, result.user);
|
|
} else {
|
|
callback(result.origin, false);
|
|
}
|
|
} else {
|
|
callback('*', false);
|
|
}
|
|
}
|
|
};
|
|
xhr.onerror = function() {
|
|
callback('*', false);
|
|
};
|
|
xhr.withCredentials = true;
|
|
xhr.send('bot_id=' + encodeURIComponent(options.bot_id) + (options.lang ? '&lang=' + encodeURIComponent(options.lang) : ''));
|
|
}
|
|
};
|
|
|
|
window.Telegram.getWidgetInfo = getWidgetInfo;
|
|
window.Telegram.setWidgetOptions = setWidgetOptions;
|
|
window.Telegram.Login = {
|
|
auth: TelegramLogin.auth,
|
|
widgetsOrigin: getWidgetsOrigin('https://oauth.telegram.org', 'https://oauth.tg.dev')
|
|
};
|
|
|
|
}(window));
|
|
})(window); |