SoundcloudSignCleaned.js

let initializationTs = -1
let trustedEventCounter = 0
let keydownEventCounter = 0
let keyupEventCounter = 0
let clickEventCounter = 0;
const signatureVersion = 8

h.initialize = function () {
    initializationTs = window.Date.now();

    window.addEventListener("mousemove", function (e) {
        if (e.isTrusted) {
            trustedEventCounter += 1
        }
    });
    window.addEventListener("touchmove", function (e) {
        if (e.isTrusted) {
            trustedEventCounter += 1
        }
    });
    window.addEventListener("keydown", function () {
        keydownEventCounter += 1
    });
    window.addEventListener("keyup", function () {
        keyupEventCounter += 1
    });
    window.addEventListener("click", function () {
        clickEventCounter += 1
    })
}

h.sign = function (mailCredential, signatureSecret, clientId) {
    let userAgent = window.navigator.userAgent;


    let automationCheck = 1;
    if (window["document"]["$cdc_asdjflasutopfhvcZLmcfl_"]) {
        automationCheck += 2;
    }
    if (window["document"]["documentElement"]["getAttribute"]("webdriver")) {
        automationCheck += 4;
    }
    if (window["navigator"]["webdriver"]) {
        automationCheck += 16;
    }
    if (window["location"].protocol !== "https:") {
        automationCheck += 32;
    }
    if (window.eval("typeof process") !== "undefined") {
        automationCheck += 64;
    }
    if (window.eval("typeof global") !== "undefined") {
        automationCheck += 128;
    }
    if (window["eval"]("typeof readFully") !== "undefined") {
        automationCheck += 256;
    }
    if (window["_Selenium_IDE_Recorder"]) {
        automationCheck += 512;
    }
    if (window.document["__webdriver_script_fn"]) {
        automationCheck += 1024;
    }


    let browserCheck = 1;
    if (window.mozInnerScreenY) {
        browserCheck += 2;
    }
    if (window["onoperacustomcontrol"] === null) {
        browserCheck += 4;
    }
    if (window["msLaunchUri"]) {
        browserCheck += 8;
    }
    if (window["safari"]) {
        browserCheck += 16;
    }
    if (window.chrome) {
        browserCheck += 32;
    }


    let executionTime = Date.now() - initializationTs;
    let screenResolution = window["screen"]["width"] * window["screen"]["height"];


    let pluginsCheck = 1024;
    window.navigator.plugins.forEach((plugin) => {
        if (plugin.name === "Chromium PDF Viewer") {
            pluginsCheck += 1;
        }
        if (plugin.name === 'Chrome PDF Viewer') {
            pluginsCheck += 2;
        }
        if (plugin.name === "Native Client") {
            pluginsCheck += 4;
        }
        if (plugin.name === "Widevine Content Decryption Module") {
            pluginsCheck += 8;
        }
        if (plugin.name === "Chrome PDF Plugin") {
            pluginsCheck += 16;
        }
        if (plugin.name === "Java Applet Plug-in") {
            pluginsCheck += 32;
        }
        if (plugin.name === 'Shockwave Flash') {
            pluginsCheck += 64;
        }
        if (plugin.name === "Edge PDF Viewer") {
            pluginsCheck += +"128";
        }
        if (plugin.name === "WebKit built-in PDF") {
            pluginsCheck += +"256";
        }
    })

    let signatureString = [
        browserCheck,
        automationCheck,
        executionTime,
        trustedEventCounter,
        screenResolution,
        pluginsCheck,
        keyupEventCounter,
        keydownEventCounter
    ]["join"]('-');


    let a = clientId + signatureVersion + signatureString + userAgent + mailCredential + signatureSecret + signatureString + clientId;
    var b = window.unescape(window.encodeURIComponent(a));
    let signatureHash = 8011470;
    for (let i = 0; i < b.length; i += 1) {
        signatureHash = (signatureHash >> 1) + ((1 & signatureHash) << 23);
        signatureHash += b.charCodeAt(i);
        signatureHash &= 16777215;
    }
    return (
        signatureVersion + ':' + signatureString + ':' + signatureHash.toString(16) + ':' + clickEventCounter
    );
}