def process_askue():
e = Exporter()
try:
logging.debug('Trying to connect to FTP server...')
with FTP(S.FTP_SERVER, S.FTP_USER, S.FTP_PASSWORD, timeout=5) as fc:
logging.debug('Looking for files in FTP directory')
# Find files and retrieve it
inbox_files = fc.mlsd(S.REMS_PATH)
filenames = [e[0] for e in inbox_files if askue_filename(e[0])]
if not filenames:
logging.info('Inbox directory is empty...')
return
if len(filenames) > 1:
logging.debug(
'More than 1 file were found: {}'.format(
'\n'.join(filenames)))
rfile = max(filenames, key=date_from_filename)
logging.info('Retrieving {}...'.format(rfile))
tf = NamedTemporaryFile()
fc.retrbinary('RETR {}'.format(j(S.REMS_PATH, rfile)), tf.write)
ftp_pos = tf.tell()
try:
if S.APPEND_ON:
lines = (record_to_csv(rec) for rec in
e.get_routes(datetime.now()))
append_lines(tf, lines)
else:
logging.debug(
'Will not append lines (switched off in settings)')
except Exception:
logging.exception(
'Error appending lines to file! Sending as is')
tf.seek(ftp_pos)
tf.truncate()
tf.seek(0)
dest_path = j(S.IOMM_PATH, rfile)
# Send file back to FTP
logging.info('Sending file... {}'.format(dest_path))
fc.storbinary('STOR {}'.format(dest_path), tf)
logging.info('Cleaning up directory...')
for fname in filenames:
filepath = j(S.REMS_PATH, fname)
fc.delete(filepath)
finally:
e.close_connection()
