javascript google drive video link extractor

GOOGLEDRIVE.js

const $ = require('jquery');

// Extract GOOGLE DRIVE Links
function GOOGLEDRIVE(link, callback) {
    let id = GetID(link);

    $.get(`https://drive.google.com/get_video_info?docid=${id}`)
        .done(function(data, status) {
            if ((data.indexOf('errorcode=100&reason=') == -1) || (data.indexOf('errorcode=150&reason=') == -1)) {
                callback('error');
            } else {
                let qualty = {};

                let response = decodeURIComponent(data);
                response = decodeURIComponent(response);
                response = response.split('url_encoded_fmt_stream_map')[1];
                let files = response.match(/https(.*?)quality/g);
                files.forEach(file => {
                    file = file.replace(';+codecs="avc1.42001E,+mp4a.40.2"&quality', '');
                    if (file.indexOf('itag=137') > -1 || file.indexOf('itag=37') > -1 || file.indexOf('itag=46') > -1) {
                        qualty['1080p'] = file;
                    } else if (file.indexOf('itag=136') > -1 || file.indexOf('itag=22') > -1 || file.indexOf('itag=45') > -1) {
                        qualty['720p'] = file;
                    } else if (file.indexOf('itag=135') > -1 || file.indexOf('itag=59') > -1 || file.indexOf('itag=44') > -1 || file.indexOf('itag=35') > -1) {
                        qualty['480p'] = file;
                    } else if (file.indexOf('itag=18') > -1 || file.indexOf('itag=134') > -1 || file.indexOf('itag=34') > -1 || file.indexOf('itag=43') > -1 || file.indexOf('itag=6') > -1) {
                        qualty['360p'] = file;
                    } else if (file.indexOf('itag=133') > -1 || file.indexOf('itag=5') > -1 || file.indexOf('itag=36') > -1) {
                        qualty['240p'] = file;
                    } else if (file.indexOf('itag=160') > -1 || file.indexOf('itag=17') > -1) {
                        qualty['144p'] = file;
                    }
                });
                callback(qualty);
            }
        })
        .fail(function(data, status) {
            callback('error');
        });
}

function GetID(link) {
    let index = link.indexOf('id=');
    let closingIndex;

    if (index > 0) {
        index += 3;
        closingIndex = link.indexOf('&', index);
        if (closingIndex < 0) {
            closingIndex = link.length;
        }
    } else {
        index = link.indexOf("file/d/");
        if (index < 0) {
            return '';
        }

        index += 7;

        closingIndex = link.indexOf('/', index);
        if (closingIndex < 0) {
            closingIndex = link.indexOf('?', index);
            if (closingIndex < 0) {
                closingIndex = link.Length;
            }
        }
    }
    return link.substr(index, closingIndex - index);
}