trnnr.py 文件源码

def fetch_descriptors():
    """
    Fetch and return relay descriptors.
    """

    downloader = DescriptorDownloader(use_mirrors=True, timeout=20)
    query = downloader.get_server_descriptors(validate=False)

    descs = {}
    try:
        for desc in query.run():
            descs[desc.fingerprint] = desc
        log.info("Query took %0.2f seconds." % query.runtime)
    except Exception as exc:
        log.critical("Unable to retrieve server descriptors: %s" % exc)

    log.info("Downloaded %d descs." % len(descs))

    return descs