Method getPayload

lib/message-parser.js:235–267

* Attempts to decode a given payload into * an object or string. * @param {Buffer} data to decode * @returns {Object|String} * object if payload is JSON, otherwise string

(data)

   * object if payload is JSON, otherwise string
   */
  getPayload(data) {
    if (data.length === 0) {
      return false;
    }

    // Try to decrypt data first.
    try {
      if (!this.cipher) {
        throw new Error('Missing key or version in constructor.');
      }

      data = this.cipher.decrypt(data);
    } catch (_) {
      data = data.toString('utf8');
    }

    // Incoming 3.5 data isn't 0 because of iv and tag so check size after
    if (this.version === '3.5') {
      if (data.length === 0) {
        return false;
      }
    }

    // Try to parse data as JSON.
    // If error, return as string.
    if (typeof data === 'string') {
      try {
        data = JSON.parse(data);
      } catch (_) { }
    }

    return data;
  }

  /**
   * Recursive function to parse