sftp.py 文件源码

def get_connection():
    """
    Creates a new SFTP connection

    Returns:
        connection(pysftp.Connection):
            the configured connection
    """
    missing_settings = []
    for key in PEARSON_UPLOAD_REQUIRED_SETTINGS:
        if getattr(settings, key) is None:
            missing_settings.append(key)

    if missing_settings:
        raise ImproperlyConfigured(
            "The setting(s) {} are required".format(', '.join(missing_settings))
        )

    cnopts = pysftp.CnOpts()
    cnopts.hostkeys = None  # ignore knownhosts

    try:
        return pysftp.Connection(
            host=str(settings.EXAMS_SFTP_HOST),
            port=int(settings.EXAMS_SFTP_PORT),
            username=str(settings.EXAMS_SFTP_USERNAME),
            password=str(settings.EXAMS_SFTP_PASSWORD),
            cnopts=cnopts,
        )
    except (ConnectionException, SSHException) as ex:
        raise RetryableSFTPException() from ex