Support AUR API v5

  def __init__(self, name, timeout=None):

    super().__init__()

    self.name = name

    url = "%s/rpc.php?type=info&arg=%s" % (self.AUR_URL, name)

    url = "%s/rpc.php?v=5&type=info&arg[]=%s" % (self.AUR_URL, name)

    url_req = Request(url, headers={"User-Agent": self.USER_AGENT})

    debug(f"{name} Requesting url: {url} (timeout: {timeout}s)")

    url_fd = urlopen(url_req, timeout=timeout)

    d = jloads(url_fd.read().decode("utf-8"))

    if d["version"] != 1:

    if d["version"] != 5:

      raise Exception(f"Unknown AUR Backend version: {d['version']}")

    if len(d["results"]) == 0:

      raise Exception(f"No such package: {name}")

    if d["results"]["PackageBase"] != name:

      raise Exception(f"No such base package: {name}")

    self._info = d["results"]

    try:

      if d["results"][0]["PackageBase"] != name:

        raise Exception(f"Not a base package")

      self._info = d["results"][0]

    except Exception as err:

      raise Exception(f"No such package: {name}") from err

  def __getattr__(self, name):

    for k, v in self._info.items():