@mygateway/mygateway-three-ds-sdk-frontend/MyGateway3DS.js

SDK 3DS MyGateway

function isUuid(uuid) {
  const pattern =
    /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;

  if (pattern.test(uuid)) {
    return true;
  }

  return false;
}

function isWithinOneHour(dateStr1, dateStr2) {
  function parseRFC1123Date(str) {
    // Divide a string por espaços:
    // ["Mon,", "17", "Feb", "2025", "13:34:25", "GMT"]
    const parts = str.split(" ");
    const day = parseInt(parts[1], 10);
    const monthStr = parts[2];
    const year = parseInt(parts[3], 10);
    const [hour, minute, second] = parts[4].split(":").map(Number);

    // Mapeamento dos meses para número (0 = Janeiro, 11 = Dezembro)
    const monthMap = {
      Jan: 0,
      Feb: 1,
      Mar: 2,
      Apr: 3,
      May: 4,
      Jun: 5,
      Jul: 6,
      Aug: 7,
      Sep: 8,
      Oct: 9,
      Nov: 10,
      Dec: 11,
    };
    const month = monthMap[monthStr];

    // Converte para timestamp em UTC
    return Date.UTC(year, month, day, hour, minute, second);
  }

  // Função para converter dateStr2 no formato "YYYY-MM-DD HH:MM:SS"
  function parseCustomDate(str) {
    const [datePart, timePart] = str.split(" ");
    const [year, month, day] = datePart.split("-").map(Number);
    const [hour, minute, second] = timePart.split(":").map(Number);

    // Note que o mês é subtraído por 1, pois Date.UTC espera 0-11 para o mês
    return Date.UTC(year, month - 1, day, hour, minute, second);
  }

  // Converte ambas as datas para timestamps
  const time1 = parseRFC1123Date(dateStr1);
  const time2 = parseCustomDate(dateStr2);

  // Calcula a diferença absoluta entre os dois timestamps
  const diffInMs = Math.abs(time1 - time2);

  // 1 hora = 3.600.000 milissegundos
  return diffInMs <= 3600000;
}

function injectAdiqScript(organizationId, orgId, sessionId) {
  const existScript = document.getElementById("challengeScript");

  if (!!existScript) return;

  const script = document.createElement("script");
  script.id = "challengeScript";
  script.type = "text/javascript";
  script.src = `https://h.online-metrix.net/fp/tags.js?org_id=${orgId}&session_id=${organizationId}${sessionId}`;
  script.async = true;
  document.head.appendChild(script);
}

function injectAdiqIframe(organizationId, orgId, sessionId) {
  const existIframe = document.getElementById("challengeIframe");

  if (!!existIframe) return;

  const noscript = document.createElement("noscript");
  const iframe = document.createElement("iframe");
  iframe.id = "challengeIframe";
  iframe.style.width = "100px";
  iframe.style.height = "100px";
  iframe.style.border = "0";
  iframe.style.position = "absolute";
  iframe.style.top = "-5000px";
  iframe.src = `https://h.online-metrix.net/fp/tags.js?org_id=${orgId}&session_id=${organizationId}${sessionId}`;
  noscript.appendChild(iframe);
  document.body.appendChild(noscript);
}

function injectAdiqInput(sessionId) {
  const existInput = document.getElementById("codeAntiFraud");

  if (!!existInput) return;

  const hiddenDiv = document.querySelector("div[hidden]");
  if (hiddenDiv) {
    const input = document.createElement("input");
    input.type = "text";
    input.id = "codeAntiFraud";
    input.name = "codeAntiFraud";
    input.value = sessionId;

    hiddenDiv.appendChild(input);
  }
}

class MyGateway3DS {
  callback;
  threeDsType;
  threeDs;

  constructor(
    inputName = "ccnum",
    callback,
    threeDsType = 1,
    sessionId,
    options
  ) {
    this.callback = callback;
    this.threeDsType = threeDsType;

    if (
      !!!inputName ||
      !!!callback ||
      !!!threeDsType ||
      !!!sessionId ||
      !!!options
    )
      throw new Error("Configuração inválida");

    const crypt = options.crypt.split("$$");
    const location = atob(crypt[0]);
    const guid1 = crypt[1];
    const object = JSON.parse(atob(crypt[2]));
    const guid2 = crypt[3];
    const seed = atob(options.seed);
    const now = new Date().toUTCString();

    if (window.location.origin.toLowerCase() !== location.toLowerCase()) {
      throw new Error("Configuração inválida");
    }

    if (!isUuid(guid1) || !isUuid(guid2)) {
      throw new Error("Configuração inválida");
    }

    if (!isWithinOneHour(now, seed)) {
      throw new Error("Configuração inválida");
    }

    if (object.sessionId !== sessionId) {
      throw new Error("Sessão inválida");
    }

    if (threeDsType == 1) {
      const data = object.providerExternalOne;
      const organizationId = atob(data.organizationId);
      const orgId = atob(data.orgId);

      injectAdiqScript(organizationId, orgId, sessionId);
      injectAdiqIframe(organizationId, orgId, sessionId);
      injectAdiqInput(sessionId);
      this.threeDs = new Adiq3ds(inputName, callback);
    }
  }

  async Authorization3ds() {
    return await this.threeDs.Authorization3ds();
  }

  GetThreeDsCode() {
    return this.threeDs.getThreeDsCode();
  }

  InitChallenge(acsUrl, pareq, authTransactionId) {
    return this.threeDs.InitChallenge(acsUrl, pareq, authTransactionId);
  }
}