bigbluebutton-Github/bigbluebutton-html5/imports/api/common/server/helpers.js

116 lines
3.6 KiB
JavaScript
Executable File

import Users from '/imports/api/users';
import Logger from '/imports/startup/server/logger';
import RegexWebUrl from '/imports/utils/regex-weburl';
import { BREAK_LINE } from '/imports/utils/lineEndings';
const MSG_DIRECT_TYPE = 'DIRECT';
const NODE_USER = 'nodeJSapp';
const HTML_SAFE_MAP = {
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#39;',
};
export const parseMessage = (message) => {
let parsedMessage = message || '';
parsedMessage = parsedMessage.trim();
// Replace <br/> with \n\r
parsedMessage = parsedMessage.replace(/<br\s*[\\/]?>/gi, '\n\r');
// Sanitize. See: http://shebang.brandonmintern.com/foolproof-html-escaping-in-javascript/
parsedMessage = parsedMessage.replace(/[<>'"]/g, (c) => HTML_SAFE_MAP[c]);
// Replace flash links to flash valid ones
parsedMessage = parsedMessage.replace(RegexWebUrl, "<a href='event:$&'><u>$&</u></a>");
// Replace flash links to html valid ones
parsedMessage = parsedMessage.split('<a href=\'event:').join('<a target="_blank" href=\'');
parsedMessage = parsedMessage.split('<a href="event:').join('<a target="_blank" href="');
// Replace \r and \n to <br/>
parsedMessage = parsedMessage.replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, `$1${BREAK_LINE}$2`);
return parsedMessage;
};
export const textToMarkdown = (message) => {
let parsedMessage = message || '';
parsedMessage = parsedMessage.trim();
// replace url with markdown links
const urlRegex = /(?<!\]\()https?:\/\/(www)?..*?\.[a-zA-Z]{1,6}/gm;
parsedMessage = parsedMessage.replace(urlRegex, '[$&]($&)');
// replace new lines with markdown new lines
parsedMessage = parsedMessage.replace(/\n\r?/g, ' \n');
return parsedMessage;
};
export const spokeTimeoutHandles = {};
export const clearSpokeTimeout = (meetingId, userId) => {
if (spokeTimeoutHandles[`${meetingId}-${userId}`]) {
Meteor.clearTimeout(spokeTimeoutHandles[`${meetingId}-${userId}`]);
delete spokeTimeoutHandles[`${meetingId}-${userId}`];
}
};
export const indexOf = [].indexOf || function (item) {
for (let i = 0, l = this.length; i < l; i += 1) {
if (i in this && this[i] === item) {
return i;
}
}
return -1;
};
export const processForHTML5ServerOnly = (fn) => async (message, ...args) => {
const { envelope } = message;
const { routing } = envelope;
const { msgType, meetingId, userId } = routing;
const selector = {
userId,
meetingId,
};
const user = await Users.findOneAsync(selector);
const shouldSkip = user && msgType === MSG_DIRECT_TYPE && userId !== NODE_USER && user.clientType !== 'HTML5';
if (shouldSkip) return () => { };
return fn(message, ...args);
};
export const extractCredentials = (credentials) => {
if (!credentials) return {};
const credentialsArray = credentials.split('--');
const meetingId = credentialsArray[0];
const requesterUserId = credentialsArray[1];
return { meetingId, requesterUserId };
};
// Creates a background job to periodically check the result of the provided function.
// The provided function is publication-specific and must check the "survival condition" of the publication.
export const publicationSafeGuard = function (fn, self) {
let stopped = false;
const periodicCheck = async function () {
if (stopped) return;
const result = await fn();
if (!result) {
self.added(self._name, 'publication-stop-marker', { id: 'publication-stop-marker', stopped: true });
self.stop();
} else Meteor.setTimeout(periodicCheck, 1000);
};
self.onStop(() => {
stopped = true;
Logger.info(`Publication ${self._name} has stopped in server side`);
});
periodicCheck();
};