You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
114 lines
3.8 KiB
Python
114 lines
3.8 KiB
Python
#!/usr/bin/env python3
|
|
|
|
import time
|
|
import os
|
|
from pathlib import Path
|
|
from pwd import getpwnam
|
|
import tempfile
|
|
import shlex
|
|
import subprocess
|
|
import requests
|
|
from socrate import system
|
|
import sys
|
|
import traceback
|
|
|
|
|
|
FETCHMAIL = """
|
|
fetchmail -N \
|
|
--idfile /data/fetchids --uidl \
|
|
--pidfile /dev/shm/fetchmail.pid \
|
|
--sslcertck --sslcertpath /etc/ssl/certs \
|
|
-f {}
|
|
"""
|
|
|
|
|
|
RC_LINE = """
|
|
poll "{host}" proto {protocol} port {port}
|
|
user "{username}" password "{password}"
|
|
is "{user_email}"
|
|
smtphost "{smtphost}"
|
|
{folders}
|
|
{options}
|
|
{lmtp}
|
|
"""
|
|
|
|
|
|
def escape_rc_string(arg):
|
|
return "".join("\\x%2x" % ord(char) for char in arg)
|
|
|
|
|
|
def fetchmail(fetchmailrc):
|
|
with tempfile.NamedTemporaryFile() as handler:
|
|
handler.write(fetchmailrc.encode("utf8"))
|
|
handler.flush()
|
|
command = FETCHMAIL.format(shlex.quote(handler.name))
|
|
output = subprocess.check_output(command, shell=True)
|
|
return output
|
|
|
|
|
|
def run(debug):
|
|
try:
|
|
fetches = requests.get(f"http://{os.environ['ADMIN_ADDRESS']}/internal/fetch").json()
|
|
for fetch in fetches:
|
|
fetchmailrc = ""
|
|
options = "options antispam 501, 504, 550, 553, 554"
|
|
options += " ssl" if fetch["tls"] else ""
|
|
options += " keep" if fetch["keep"] else " fetchall"
|
|
folders = "folders %s" % ((','.join('"' + item + '"' for item in fetch['folders'])) if fetch['folders'] else '"INBOX"')
|
|
fetchmailrc += RC_LINE.format(
|
|
user_email=escape_rc_string(fetch["user_email"]),
|
|
protocol=fetch["protocol"],
|
|
host=escape_rc_string(fetch["host"]),
|
|
port=fetch["port"],
|
|
smtphost=f'{os.environ["SMTP_ADDRESS"]}' if fetch['scan'] else f'{os.environ["IMAP_ADDRESS"]}/2525',
|
|
username=escape_rc_string(fetch["username"]),
|
|
password=escape_rc_string(fetch["password"]),
|
|
options=options,
|
|
folders=folders,
|
|
lmtp='' if fetch['scan'] else 'lmtp',
|
|
)
|
|
if debug:
|
|
print(fetchmailrc)
|
|
try:
|
|
print(fetchmail(fetchmailrc))
|
|
error_message = ""
|
|
except subprocess.CalledProcessError as error:
|
|
error_message = error.output.decode("utf8")
|
|
# No mail is not an error
|
|
if not error_message.startswith("fetchmail: No mail"):
|
|
print(error_message)
|
|
user_info = "for %s at %s" % (fetch["user_email"], fetch["host"])
|
|
# Number of messages seen is not a error as well
|
|
if ("messages" in error_message and
|
|
"(seen " in error_message and
|
|
user_info in error_message):
|
|
print(error_message)
|
|
finally:
|
|
requests.post("http://{}/internal/fetch/{}".format(os.environ['ADMIN_ADDRESS'],fetch['id']),
|
|
json=error_message.split('\n')[0]
|
|
)
|
|
except Exception:
|
|
traceback.print_exc()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
id_fetchmail = getpwnam('fetchmail')
|
|
Path('/data/fetchids').touch()
|
|
os.chown("/data/fetchids", id_fetchmail.pw_uid, id_fetchmail.pw_gid)
|
|
os.chown("/data/", id_fetchmail.pw_uid, id_fetchmail.pw_gid)
|
|
os.chmod("/data/fetchids", 0o700)
|
|
os.setgid(id_fetchmail.pw_gid)
|
|
os.setuid(id_fetchmail.pw_uid)
|
|
config = system.set_env()
|
|
while True:
|
|
delay = int(os.environ.get('FETCHMAIL_DELAY', 60))
|
|
print("Sleeping for {} seconds".format(delay))
|
|
time.sleep(delay)
|
|
|
|
if not config.get('FETCHMAIL_ENABLED', True):
|
|
print("Fetchmail disabled, skipping...")
|
|
continue
|
|
|
|
run(config.get('DEBUG', False))
|
|
sys.stdout.flush()
|