telegram-crawler/data/telegram.org/js/telegram-webview.js
2022-03-30 07:22:31 +00:00

347 lines
10 KiB
JavaScript

(function () {
var eventHandlers = {};
// Parse init params from location hash: for Android < 5.0, TDesktop
var locationHash = '';
try {
locationHash = location.hash.toString();
} catch (e) {}
var initParams = urlParseHashParams(locationHash);
var webAppDataRaw = '', webAppData = {};
if (initParams.tgWebAppData && initParams.tgWebAppData.length) {
webAppDataRaw = initParams.tgWebAppData;
webAppData = urlParseHashParams(webAppDataRaw);
delete webAppData._path;
for (var key in webAppData) {
var val = webAppData[key];
try {
if (val.substr(0, 1) == '{' && val.substr(-1) == '}' ||
val.substr(0, 1) == '[' && val.substr(-1) == ']') {
webAppData[key] = JSON.parse(val);
}
} catch (e) {}
}
}
else if (initParams.tgWebviewData && initParams.tgWebviewData.length) {
// temp
webAppDataRaw = initParams.tgWebviewData;
webAppData = urlParseHashParams(webAppDataRaw);
delete webAppData._path;
for (var key in webAppData) {
var val = webAppData[key];
try {
if (val.substr(0, 1) == '{' && val.substr(-1) == '}' ||
val.substr(0, 1) == '[' && val.substr(-1) == ']') {
webAppData[key] = JSON.parse(val);
}
} catch (e) {}
}
}
if (webAppData.theme_params) {
setThemeParams(webAppData.theme_params);
}
onEvent('theme_changed', onThemeChanged);
var isIframe = false;
try {
isIframe = (window.parent != null && window != window.parent);
if (isIframe) {
window.addEventListener('message', function (event) {
if (event.source !== window.parent) return;
try {
var dataParsed = JSON.parse(event.data);
} catch (e) {
return;
}
if (!dataParsed || !dataParsed.eventType) {
return;
}
receiveEvent(dataParsed.eventType, dataParsed.eventData);
});
}
} catch (e) {}
function onThemeChanged(eventType, eventData) {
if (eventData.theme_params) {
setThemeParams(eventData.theme_params);
}
}
function urlSafeDecode(urlencoded) {
try {
urlencoded = urlencoded.replace(/\+/g, '%20');
return decodeURIComponent(urlencoded);
} catch (e) {
return urlencoded;
}
}
function urlParseHashParams(locationHash) {
locationHash = locationHash.replace(/^#/, '');
var params = {};
if (!locationHash.length) {
return params;
}
if (locationHash.indexOf('=') < 0 && locationHash.indexOf('?') < 0) {
params._path = urlSafeDecode(locationHash);
return params;
}
var qIndex = locationHash.indexOf('?');
if (qIndex >= 0) {
var pathParam = locationHash.substr(0, qIndex);
params._path = urlSafeDecode(pathParam);
locationHash = locationHash.substr(qIndex + 1);
}
var locationHashParams = locationHash.split('&');
var i, param, paramName, paramValue;
for (i = 0; i < locationHashParams.length; i++) {
param = locationHashParams[i].split('=');
paramName = urlSafeDecode(param[0]);
paramValue = param[1] == null ? null : urlSafeDecode(param[1]);
params[paramName] = paramValue;
}
return params;
}
// Telegram apps will implement this logic to add service params (e.g. tgShareScoreUrl) to game URL
function urlAppendHashParams(url, addHash) {
// url looks like 'https://game.com/path?query=1#hash'
// addHash looks like 'tgShareScoreUrl=' + encodeURIComponent('tgb://share_game_score?hash=telegram-crawler_long_hash123')
var ind = url.indexOf('#');
if (ind < 0) {
// https://game.com/path -> https://game.com/path#tgShareScoreUrl=etc
return url + '#' + addHash;
}
var curHash = url.substr(ind + 1);
if (curHash.indexOf('=') >= 0 || curHash.indexOf('?') >= 0) {
// https://game.com/#hash=1 -> https://game.com/#hash=1&tgShareScoreUrl=etc
// https://game.com/#path?query -> https://game.com/#path?query&tgShareScoreUrl=etc
return url + '&' + addHash;
}
// https://game.com/#hash -> https://game.com/#hash?tgShareScoreUrl=etc
if (curHash.length > 0) {
return url + '?' + addHash;
}
// https://game.com/# -> https://game.com/#tgShareScoreUrl=etc
return url + addHash;
}
function postEvent(eventType, callback, eventData) {
if (!callback) {
callback = function () {};
}
if (eventData === undefined) {
eventData = '';
}
if (window.TelegramWebviewProxy !== undefined) {
TelegramWebviewProxy.postEvent(eventType, JSON.stringify(eventData));
callback();
}
else if (window.external && 'notify' in window.external) {
window.external.notify(JSON.stringify({eventType: eventType, eventData: eventData}));
callback();
}
else if (isIframe) {
try {
var trustedTarget = 'https://web.telegram.org';
// For now we don't restrict target, for testing purposes
trustedTarget = '*';
window.parent.postMessage(JSON.stringify({eventType: eventType, eventData: eventData}), trustedTarget);
callback();
} catch (e) {
callback(e);
}
}
else {
callback({notAvailable: true});
}
};
function receiveEvent(eventType, eventData) {
var curEventHandlers = eventHandlers[eventType];
if (curEventHandlers === undefined ||
!curEventHandlers.length) {
return;
}
for (var i = 0; i < curEventHandlers.length; i++) {
try {
curEventHandlers[i](eventType, eventData);
} catch (e) {}
}
}
function onEvent(eventType, callback) {
if (eventHandlers[eventType] === undefined) {
eventHandlers[eventType] = [];
}
var index = eventHandlers[eventType].indexOf(callback);
if (index === -1) {
eventHandlers[eventType].push(callback);
}
};
function offEvent(eventType, callback) {
if (eventHandlers[eventType] === undefined) {
return;
}
var index = eventHandlers[eventType].indexOf(callback);
if (index === -1) {
return;
}
eventHandlers[eventType].splice(index, 1);
};
function setThemeParams(theme_params) {
var root = document.documentElement, color;
if (root && root.style && root.style.setProperty) {
for (var key in theme_params) {
if ((color = theme_params[key]) &&
/^#[0-9a-f]{3}|#[0-9a-f]{6}$/i.test(color)) {
if (key == 'bg_color') {
root.style.setProperty('--tg-theme-color-scheme', isColorDark(color) ? 'dark' : 'light');
}
key = '--tg-theme-' + key.split('_').join('-');
root.style.setProperty(key, color);
}
}
}
}
function isColorDark(rgb) {
rgb = rgb.replace(/[\s#]/g, '');
if (rgb.length == 3) {
rgb = rgb[0] + rgb[0] + rgb[1] + rgb[1] + rgb[2] + rgb[2];
}
var r = parseInt(rgb.substr(0, 2), 16);
var g = parseInt(rgb.substr(2, 2), 16);
var b = parseInt(rgb.substr(4, 2), 16);
var hsp = Math.sqrt(0.299 * (r * r) + 0.587 * (g * g) + 0.114 * (b * b));
return hsp < 120;
}
function byteLength(str) {
if (window.Blob) {
try { return new Blob([str]).size; } catch (e) {}
}
var s = str.length;
for (var i=str.length-1; i>=0; i--) {
var code = str.charCodeAt(i);
if (code > 0x7f && code <= 0x7ff) s++;
else if (code > 0x7ff && code <= 0xffff) s+=2;
if (code >= 0xdc00 && code <= 0xdfff) i--;
}
return s;
}
function openProtoUrl(url) {
if (!url.match(/^(web\+)?tgb?:\/\/./)) {
return false;
}
var useIframe = navigator.userAgent.match(/iOS|iPhone OS|iPhone|iPod|iPad/i) ? true : false;
if (useIframe) {
var iframeContEl = document.getElementById('tgme_frame_cont') || document.body;
var iframeEl = document.createElement('iframe');
iframeContEl.appendChild(iframeEl);
var pageHidden = false;
var enableHidden = function () {
pageHidden = true;
};
window.addEventListener('pagehide', enableHidden, false);
window.addEventListener('blur', enableHidden, false);
if (iframeEl !== null) {
iframeEl.src = url;
}
setTimeout(function() {
if (!pageHidden) {
window.location = url;
}
window.removeEventListener('pagehide', enableHidden, false);
window.removeEventListener('blur', enableHidden, false);
}, 2000);
}
else {
window.location = url;
}
return true;
}
if (!window.Telegram) {
window.Telegram = {};
}
window.Telegram.WebView = {
initParams: initParams,
onEvent: onEvent,
offEvent: offEvent,
receiveEvent: receiveEvent,
};
window.Telegram.Games = {
shareScore: function() {
postEvent('share_score', function (error) {
if (error) {
var shareScoreUrl = initParams.tgShareScoreUrl;
if (shareScoreUrl) {
openProtoUrl(shareScoreUrl);
}
}
});
},
shareGame: function() {
postEvent('share_game');
}
};
window.Telegram.Payments = {
submitPaymentForm: function (formData) {
if (!formData ||
!formData.credentials ||
formData.credentials.type !== 'card' ||
!formData.credentials.token ||
!formData.credentials.token.match(/^[A-Za-z0-9\/=_\-]{4,512}$/) ||
!formData.title) {
console.error('[Telegram.Payments] Invalid form data submitted', formData);
throw Error('PaymentFormDataInvalid');
}
postEvent('payment_form_submit', false, formData);
}
};
window.Telegram.WebApp = {
initData: webAppData,
initDataRaw: webAppDataRaw,
onEvent: onEvent,
offEvent: offEvent,
sendData: function (data) {
if (!data || !data.length) {
console.error('[Telegram.WebApp] Data is empty', data);
throw Error('WebAppDataInvalid');
}
if (byteLength(data) > 4096) {
console.error('[Telegram.WebApp] Data is too long', data);
throw Error('WebAppDataInvalid');
}
postEvent('web_app_data_send', false, {data: data});
postEvent('webview_data_send', false, {data: data});//temp
},
close: function () {
postEvent('web_app_close');
postEvent('webview_close');//temp
}
};
// For Windows Phone app
window.TelegramGameProxy_receiveEvent = receiveEvent;
// Backward compatibility
window.TelegramGameProxy = {
initParams: initParams,
onEvent: onEvent,
receiveEvent: receiveEvent,
shareScore: window.Telegram.Games.shareScore,
paymentFormSubmit: window.Telegram.Payments.submitPaymentForm
};
})();