191 lines
6 KiB
Python
191 lines
6 KiB
Python
#!/usr/bin/env python3
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""" Thy pylokid main program """
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import os
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import re
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from datetime import datetime
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import asyncio
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import logging
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import time
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import email
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import email.parser
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import imaplib
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import aioeasywebdav
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from dotenv import load_dotenv, find_dotenv
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import paho.mqtt.client as mqtt
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from lodur_connect import create_einsatzrapport, upload_alarmdepesche
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_EMAIL_SUBJECTS = '(OR SUBJECT "Einsatzausdruck_FW" SUBJECT "Einsatzprotokoll" UNSEEN)'
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load_dotenv(find_dotenv())
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imap_server = os.getenv("IMAP_SERVER")
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imap_username = os.getenv("IMAP_USERNAME")
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imap_password = os.getenv("IMAP_PASSWORD")
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imap_mailbox = os.getenv("IMAP_MAILBOX", "INBOX")
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imap_mailbox_archive = os.getenv("IMAP_MAILBOX_ARCHIVE", "Archive")
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webdav_url = os.getenv("WEBDAV_URL")
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webdav_username = os.getenv("WEBDAV_USERNAME")
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webdav_password = os.getenv("WEBDAV_PASSWORD")
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webdav_basedir = os.getenv("WEBDAV_BASEDIR")
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tmp_dir = os.getenv("TMP_DIR", "/tmp")
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mqtt_server = os.getenv("MQTT_SERVER")
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mqtt_user = os.getenv("MQTT_USER")
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mqtt_password = os.getenv("MQTT_PASSWORD")
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lodur_user = os.getenv("LODUR_USER")
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lodur_password = os.getenv("LODUR_PASSWORD")
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lodur_base_url = os.getenv("LODUR_BASE_URL")
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(levelname)s - %(message)s'
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)
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logger = logging.getLogger(__name__)
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def get_attachments(mqtt_client):
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# imap connection
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logger.info('Connecting to IMAP server ' + imap_server)
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imap = imaplib.IMAP4_SSL(imap_server)
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imap.login(imap_username, imap_password)
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imap.select(imap_mailbox, readonly=False)
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# search for matching messages
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logger.info('Searching for messages matching the subject')
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typ, msg_ids = imap.search(
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None,
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_EMAIL_SUBJECTS,
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)
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if typ != 'OK':
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logger.error('Error searching for matching messages')
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raise
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logger.info('Found ' + str(len(msg_ids[0].split())) + ' matching messages')
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for msg_id in msg_ids[0].split():
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subject = str()
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f_id = str()
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f_type = str()
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# download message
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typ, msg_data = imap.fetch(msg_id, '(RFC822)')
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for response_part in msg_data:
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if isinstance(response_part, tuple):
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msg = email.message_from_string(str(response_part[1], 'utf-8'))
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subject = msg["subject"]
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# extract F id from subject
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parse_subject = re.search('(.*): (F[0-9].*)', subject)
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f_type = parse_subject.group(1)
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f_id = parse_subject.group(2)
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# mark as seen
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imap.store(msg_id, '+FLAGS', '(\\Seen)')
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logger.info('Processing message: ' + subject)
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logger.info('Detected type: ' + f_type)
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logger.info('Detected F ID: ' + f_id)
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# publish over MQTT
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mqtt_client.publish("pylokid/einsatz/" + f_id, f_type)
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# Talk to Lodur
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if f_type == 'Einsatzausdruck_FW':
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# create new Einsatzrapport in Lodur
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logger.info('Sending data to Lodur')
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lodur_id = create_einsatzrapport(
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lodur_user,
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lodur_password,
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lodur_base_url,
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f_id,
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)
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logger.info('Sent data to Lodur. Assigned Lodur ID: ' + lodur_id)
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elif f_type == 'Einsatzprotokoll':
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logger.info('Updating data in Lodur')
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else:
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logger.error('Unknown type: ' + f_type)
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# extract attachment from body
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mail = email.message_from_string(str(msg_data[0][1], 'utf-8'))
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for part in mail.walk():
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if part.get_content_maintype() == 'multipart':
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continue
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if part.get('Content-Disposition') is None:
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continue
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file_name = part.get_filename()
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logger.info('Extracting attachment: ' + file_name)
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if bool(file_name):
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# save attachment to filesystem
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file_path = os.path.join(tmp_dir, file_name)
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logger.info('Saving attachment to ' + file_path)
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if not os.path.isfile(file_path):
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file = open(file_path, 'wb')
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file.write(part.get_payload(decode=True))
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file.close()
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upload_attachment(file_path, file_name, f_id)
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logger.info('Uploading PDF to Lodur')
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upload_alarmdepesche(
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lodur_user,
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lodur_password,
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lodur_base_url,
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lodur_id,
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file_name,
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file_path,
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)
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def upload_attachment(file, file_name, f_id):
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# webdav connection
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logger.info('Connecting to WebDAV server ' + webdav_url)
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loop = asyncio.get_event_loop()
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webdav = aioeasywebdav.connect(
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webdav_url,
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username=webdav_username,
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password=webdav_password,
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)
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# upload with webdav
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upload_dir = webdav_basedir + "/" + str(datetime.now().year) + "/" + f_id
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logger.info('Uploading attachment to ' + upload_dir)
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# create directory if not yet there
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if not loop.run_until_complete(webdav.exists(upload_dir)):
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logger.info('Creating directory ' + upload_dir)
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loop.run_until_complete(webdav.mkdir(upload_dir))
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remote_file_path = upload_dir + "/" + file_name
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if loop.run_until_complete(webdav.exists(remote_file_path)):
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logger.info('File ' + file_name + ' already uploaded')
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else:
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loop.run_until_complete(
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webdav.upload(file, remote_file_path)
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)
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logger.info('File ' + file_name + ' uploaded')
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def on_connect(client, userdata, flags, rc):
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logger.info('Connected to MQTT with result code ' + str(rc))
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def main():
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""" main """
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logger.info('Connecting to MQTT broker ' + mqtt_server)
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client = mqtt.Client('pylokid')
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client.on_connect = on_connect
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client.username_pw_set(mqtt_user, password=mqtt_password)
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client.tls_set()
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client.connect(mqtt_server, 8883, 60)
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client.loop_start()
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while True:
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get_attachments(client)
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time.sleep(60)
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if __name__ == '__main__':
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main()
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