110 lines
3.3 KiB
Python
Executable File
110 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Tests sending and receiving mail by sending a test message to yourself.
|
|
|
|
import sys, imaplib, smtplib, uuid, time
|
|
import socket, dns.reversename, dns.resolver
|
|
|
|
if len(sys.argv) < 3:
|
|
print("Usage: tests/mail.py hostname emailaddress password")
|
|
sys.exit(1)
|
|
|
|
host, emailaddress, pw = sys.argv[1:4]
|
|
|
|
# Attempt to login with IMAP. Our setup uses email addresses
|
|
# as IMAP/SMTP usernames.
|
|
try:
|
|
M = imaplib.IMAP4_SSL(host)
|
|
M.login(emailaddress, pw)
|
|
except OSError as e:
|
|
print("Connection error:", e)
|
|
sys.exit(1)
|
|
except imaplib.IMAP4.error as e:
|
|
# any sort of login error
|
|
e = ", ".join(a.decode("utf8") for a in e.args)
|
|
print("IMAP error:", e)
|
|
sys.exit(1)
|
|
|
|
M.select()
|
|
print("IMAP login is OK.")
|
|
|
|
# Attempt to send a mail to ourself.
|
|
mailsubject = "Mail-in-a-Box Automated Test Message " + uuid.uuid4().hex
|
|
emailto = emailaddress
|
|
msg = """From: {emailaddress}
|
|
To: {emailto}
|
|
Subject: {subject}
|
|
|
|
This is a test message. It should be automatically deleted by the test script.""".format(
|
|
emailaddress=emailaddress,
|
|
emailto=emailto,
|
|
subject=mailsubject,
|
|
)
|
|
|
|
# Connect to the server on the SMTP submission TLS port.
|
|
server = smtplib.SMTP(host, 587)
|
|
#server.set_debuglevel(1)
|
|
server.starttls()
|
|
|
|
# Verify that the EHLO name matches the server's reverse DNS.
|
|
ipaddr = socket.gethostbyname(host) # IPv4 only!
|
|
reverse_ip = dns.reversename.from_address(ipaddr) # e.g. "1.0.0.127.in-addr.arpa."
|
|
try:
|
|
reverse_dns = dns.resolver.query(reverse_ip, 'PTR')[0].target.to_text(omit_final_dot=True) # => hostname
|
|
except dns.resolver.NXDOMAIN:
|
|
print("Reverse DNS lookup failed for %s. SMTP EHLO name check skipped." % ipaddr)
|
|
reverse_dns = None
|
|
if reverse_dns is not None:
|
|
server.ehlo_or_helo_if_needed() # must send EHLO before getting the server's EHLO name
|
|
helo_name = server.ehlo_resp.decode("utf8").split("\n")[0] # first line is the EHLO name
|
|
if helo_name != reverse_dns:
|
|
print("The server's EHLO name does not match its reverse hostname. Check DNS settings.")
|
|
else:
|
|
print("SMTP EHLO name (%s) is OK." % helo_name)
|
|
|
|
# Login and send a test email.
|
|
server.login(emailaddress, pw)
|
|
server.sendmail(emailaddress, [emailto], msg)
|
|
server.quit()
|
|
print("SMTP submission is OK.")
|
|
|
|
while True:
|
|
# Wait so the message can propagate to the inbox.
|
|
time.sleep(10)
|
|
|
|
# Read the subject lines of all of the emails in the inbox
|
|
# to find our test message, and then delete it.
|
|
found = False
|
|
typ, data = M.search(None, 'ALL')
|
|
for num in data[0].split():
|
|
typ, data = M.fetch(num, '(BODY[HEADER.FIELDS (SUBJECT)])')
|
|
imapsubjectline = data[0][1].strip().decode("utf8")
|
|
if imapsubjectline == "Subject: " + mailsubject:
|
|
# We found our test message.
|
|
found = True
|
|
|
|
# To test DKIM, download the whole mssage body. Unfortunately,
|
|
# pydkim doesn't actually work.
|
|
# You must 'sudo apt-get install python3-dkim python3-dnspython' first.
|
|
#typ, msgdata = M.fetch(num, '(RFC822)')
|
|
#msg = msgdata[0][1]
|
|
#if dkim.verify(msg):
|
|
# print("DKIM signature on the test message is OK (verified).")
|
|
#else:
|
|
# print("DKIM signature on the test message failed verification.")
|
|
|
|
# Delete the test message.
|
|
M.store(num, '+FLAGS', '\\Deleted')
|
|
M.expunge()
|
|
|
|
break
|
|
|
|
if found:
|
|
break
|
|
|
|
print("Test message not present in the inbox yet...")
|
|
|
|
M.close()
|
|
M.logout()
|
|
|
|
print("Test message sent & received successfully.")
|