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zoomParser.js
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zoomParser.js
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const request = require("request-promise");
const url = require("url");
const { get } = require("lodash");
const regex = /(.*).*[.,\s].*Meeting ID:[\s]*([\d\s]+)?/gm;
const phoneNumberRegex = /[+][\s,0-9].*/gm;
const urlRegex = /.*https:\/\/.*[.]*zoom.us\/j\/(\d+)/gm;
const passwordRegex = /Passcode:[\s]*([\d]+)/gim;
const joiningInstructionsRegex = /Joining instructions:(.*)/gim;
const standardPhoneNumbers = { US: ["+16465588656", "+14086380968"] };
const keys = ["Meeting ID:", "Joining instructions", "zoom.us/j/"];
const getPhoneNumbers = async (content, resetRegex = true) => {
if (resetRegex) {
phoneNumberRegex.lastIndex = 0;
}
let match;
const phoneNumbers = [];
let country = null;
while ((match = phoneNumberRegex.exec(content)) !== null) {
const splitStr = match[0].replace(/[\\,]+/g, " ").split(" ");
//Add check for length of phone number
splitStr[0].length > 9 &&
phoneNumbers.push(splitStr[0].trim().replace(/ /g, ""));
if (splitStr.length >= 3 && !country) country = splitStr[2].trim();
}
return {
country: country,
phoneNumbers: phoneNumbers,
};
};
const getJoiningInstructions = async (joiningInstructionsUrl) => {
if (joiningInstructionsUrl) {
const zoomJoiningInstructionsUrl = get(
url.parse(joiningInstructionsUrl, true),
"query.q",
null
);
if (zoomJoiningInstructionsUrl) {
const requestOptions = {
uri: zoomJoiningInstructionsUrl,
method: "GET",
resolveWithFullResponse: true,
};
const response = await request(requestOptions);
if (response && response.statusCode === 200) {
return response.body;
} else {
return null;
}
} else {
logger.info("Joining Instructions URL not found", {
joiningInstructionsUrl,
});
}
}
return null;
};
const isNumeric = (str) => {
return /^\d+$/.test(str);
};
const getPasswordFromPayload = async (payload, resetRegex = true) => {
if (resetRegex) {
passwordRegex.lastIndex = 0;
}
let meetingPasswordData;
while ((meetingPasswordData = passwordRegex.exec(payload)) != null) {
if (
meetingPasswordData &&
meetingPasswordData.length === 2 &&
isNumeric(meetingPasswordData[1])
) {
return meetingPasswordData[1];
}
}
};
const constructJoiningDetails = async ({
country,
phoneNumbers,
content,
meetingPassword,
meetingId,
}) => {
let extraStandardNumbers = standardPhoneNumbers[country] || [];
extraStandardNumbers = extraStandardNumbers.filter(
(number) => !phoneNumbers.includes(number)
);
if (extraStandardNumbers.length > 0) {
extraStandardNumbers.forEach((number) => phoneNumbers.push(number));
}
const dtmfFromUrl = urlRegex.exec(content);
let dtmf =
dtmfFromUrl && dtmfFromUrl.length === 2
? dtmfFromUrl[1].trim().includes("?")
? dtmfFromUrl[1].trim().split("?")[0].concat("#")
: dtmfFromUrl[1].trim().concat("#")
: meetingId.trim().replace(/ /g, "").concat("#");
if (meetingPassword) {
dtmf = dtmf.concat(`,,${meetingPassword}#`);
}
return {
joiningDetails: [
{
country,
phoneNumbers,
dtmf,
},
],
};
};
const zoomParser = () => {
const patternToParser = {};
patternToParser[keys[0]] = async (content) => {
if (content) {
const result = regex.exec(content);
if (result && result.length === 3) {
let { country, phoneNumbers } = await getPhoneNumbers(content, false);
let meetingPassword = await getPasswordFromPayload(content, false);
const joiningInstructionsUrl = get(
joiningInstructionsRegex.exec(content),
"[1]",
null
);
let joiningInstructions = null;
if (joiningInstructionsUrl)
joiningInstructions = await getJoiningInstructions(
joiningInstructionsUrl
);
if (
(!phoneNumbers || phoneNumbers.length <= 0) &&
joiningInstructions
) {
const data = await getPhoneNumbers(joiningInstructions);
phoneNumbers = data.phoneNumbers;
country = data.country;
}
if (!meetingPassword) {
meetingPassword = await getPasswordFromPayload(joiningInstructions);
}
if (!country) country = "US";
return await constructJoiningDetails({
country,
phoneNumbers,
meetingPassword,
content,
meetingId: result[2],
});
}
}
return null;
};
patternToParser[keys[1]] = async (content) => {
if (content) {
let joiningInstructions = null;
const joiningInstructionsUrl = get(
joiningInstructionsRegex.exec(content),
"[1]",
null
);
if (joiningInstructionsUrl) {
joiningInstructions = await getJoiningInstructions(
joiningInstructionsUrl
);
if (joiningInstructions) {
let meetingPassword = await getPasswordFromPayload(
joiningInstructions,
false
);
let { phoneNumbers, country } = await getPhoneNumbers(
joiningInstructions,
false
);
if (!country) country = "US";
const meetingId = get(regex.exec(joiningInstructions), "[2]", null);
return await constructJoiningDetails({
country,
phoneNumbers,
meetingPassword,
content: joiningInstructions,
meetingId,
});
}
}
}
return null;
};
patternToParser[keys[2]] = async (content) => {
if (content) {
const result = urlRegex.exec(content.trim());
if (result && result.length === 2) {
let dtmf = result[1].trim();
if (dtmf.includes("?")) {
dtmf = dtmf.split("?")[0];
}
dtmf = dtmf.concat("#");
const meetingPasswordData = passwordRegex.exec(content);
let meetingPassword =
meetingPasswordData && meetingPasswordData.length === 2
? meetingPasswordData[1]
: null;
if (meetingPassword) {
dtmf = dtmf.concat(`,,${meetingPassword}#`);
}
return {
joiningDetails: [
{
country: "US",
phoneNumbers: standardPhoneNumbers["US"],
dtmf,
},
],
};
}
return null;
}
};
return {
isValid(content) {
return content && keys.filter((key) => content.includes(key)).length > 0;
},
async parse(content) {
if (content) {
let parser = null;
keys.some((key, index) => {
if (content.toLowerCase().includes(key.toLowerCase())) {
parser = patternToParser[keys[index]];
return true;
}
return false;
});
if (parser) {
regex.lastIndex = 0;
urlRegex.lastIndex = 0;
phoneNumberRegex.lastIndex = 0;
passwordRegex.lastIndex = 0;
joiningInstructionsRegex.lastIndex = 0;
return await parser(content);
}
} else {
return null;
}
},
};
};
// const sample = "Aditya W is inviting you to a scheduled Zoom meeting.\n" +
// "\n" +
// "Join Zoom Meeting\n" +
// "https://zoom.us/j/996291789\n" +
// "\n" +
// "One tap mobile\n" +
// "+16465588656,,996291787# US (New York)\n" +
// "+14086380968,,996291787# US (San Jose)\n" +
// "\n" +
// "Dial by your location\n" +
// " +1 646 558 8656 US (New York)\n" +
// " +1 408 638 0968 US (San Jose)\n" +
// "Meeting ID: 996 291 787" +
// "Find your local number: https://zoom.us/u/acLLoulOb";
// const parser = zoomParser();
// if (parser.isValid(sample)) {
// const res = parser.parse(sample);
// console.log(res);
// }
module.exports = zoomParser;
// const sample = `Hi there,
//
// Toshish Jawale is inviting you to a scheduled Zoom meeting.
//
// Join from PC, Mac, Linux, iOS or Android: https://zoom.us/j/476452611
//
// Or iPhone one-tap :
// US: +16465588665,,476452611# or +14086380986,,476452611#
// Or Telephone:
// Dial(for higher quality, dial a number based on your current location):
// US: +1 646 558 8665 or +1 408 638 0986
// Meeting ID: 476 452 611
// International numbers available: https://zoom.us/u/yeuSXkkN`;
//
// const parser = zoomParser();
// if (parser.isValid(sample)) {
// const res = parser.parse(sample);
// console.log(res);
// }
//
// const sample1 = `You have been invited to the following event.\n\nTitle: Again + with pass+ pro\nWhen: Mon Apr 6, 2020 4pm – 5pm India Standard Time - Kolkata\n\nJoining info: Join Zoom Meeting\nhttps://zoom.us/j/6237467470?pwd=dmdZUGVCZGRQMGpaTzVFanFzY0ZmUT09 (ID: 6237467470, password: abhay)\n\nJoin by phone\n(US) +1 312-626-6799\n\nJoining instructions: https://www.google.com/url?q=https://applications.zoom.us/addon/invitation/detail?meetingUuid%3DM6vt6D0HTyO52941hhamBg%253D%253D%26signature%3Daa6880d40d38c68cbbc61fd1caad26b3dd428a9ee160ff8be2f6b74dc116c85a&sa=D&usg=AOvVaw3ur1l5U69uEB2MWcCPJcLx
// \n\nJoining notes: Password: abhay\n\nCalendar: [email protected]\nWho:\n * [email protected] - organizer\n * [email protected]\n * [email protected] - optional\n\nYour attendance is optional.\n\nEvent details: https://www.google.com/calendar/event?action=VIEW&eid=NmswbG40MnEyMTJlZXZkamlvOW1raHAzNTAgbWVldGluZ2luc2lnaHRzQG1lZXQtaHViLnN5bWJsLmFp&tok=MjAjYWJoYXkuZGFsdmlAc3ltYmwuYWkwNTc3NGUwZTdjZjUwOWRjOGE2M2EzYzFkYmU3ZjAxYzYyMjdlZWJh&ctz=Asia%2FKolkata&hl=en&es=0\n\nInvitation from Google Calendar: https://www.google.com/calendar/\n\nYou are receiving this courtesy email at the account [email protected] because you are an attendee of this event.\n\nTo stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://www.google.com/calendar/ and control your notification settings for your entire calendar.\n\nForwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding\n" {"htmlDecodedContent":"You have been invited to the`;
// const sample1 = `Zoom logo
// Arjun Chouhan is inviting you to a scheduled Zoom meeting.
//
// Topic: This is a calendar meeting
// Time: Apr 6, 2020 01:44 PM India
//
// Join Zoom Meeting
// https://zoom.us/j/222349200?pwd=VGFKNUZUMmYrT2NIbTFUdkxCc2hVdz09
//
// Meeting ID: 222 349 200
// Password: gh7zfz
//
// One tap mobile
// +12532158782,,222349200# US
// +13017158592,,222349200# US
//
// Dial by your location
// +1 253 215 8782 US
// +1 301 715 8592 US
// +1 312 626 6799 US (Chicago)
// +1 346 248 7799 US (Houston)
// +1 646 558 8656 US (New York)
// +1 669 900 9128 US (San Jose)
// Meeting ID: 222 349 200
// Password: 526261
// Find your local number: https://zoom.us/u/aNEntYu01`;
//
// if (parser.isValid(sample1)) {
// parser.parse(sample1).then(res => {
// console.log(res, res.joiningDetails[0].phoneNumbers)
// });
// }