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Author SHA1 Message Date
link2xt
ca21d06f0e Cleanup Received headers only on outgoing mail 2024-01-23 20:23:02 +00:00
43 changed files with 315 additions and 1142 deletions

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@@ -4,17 +4,12 @@ on:
push:
branches:
- main
pull_request:
paths-ignore:
- 'scripts/**'
- staging-ci
jobs:
deploy:
name: deploy on staging.testrun.org, and run tests
runs-on: ubuntu-latest
concurrency:
group: staging-deploy
cancel-in-progress: true
steps:
- uses: actions/checkout@v3
@@ -24,45 +19,44 @@ jobs:
echo "${{ secrets.STAGING_SSH_KEY }}" >> ~/.ssh/id_ed25519
chmod 600 ~/.ssh/id_ed25519
ssh-keyscan staging.testrun.org > ~/.ssh/known_hosts
rsync -avz root@staging.testrun.org:/var/lib/acme . || true
rsync -avz root@staging.testrun.org:/etc/dkimkeys . || true
# rsync -avz root@staging.testrun.org:/var/lib/acme . || true
# rsync -avz root@staging.testrun.org:/var/lib/rspamd/dkim . || true
- name: rebuild staging.testrun.org to have a clean VPS
run: |
curl -X POST \
-H "Authorization: Bearer ${{ secrets.HETZNER_API_TOKEN }}" \
-H "Content-Type: application/json" \
-d '{"image":"debian-12"}' \
"https://api.hetzner.cloud/v1/servers/${{ secrets.STAGING_SERVER_ID }}/actions/rebuild"
#- name: rebuild staging.testrun.org to have a clean VPS
# run: |
# curl -X POST \
# -H "Authorization: Bearer ${{ secrets.HETZNER_API_TOKEN }}" \
# -H "Content-Type: application/json" \
# -d '{"image":"debian-12"}' \
# "https://api.hetzner.cloud/v1/servers/${{ secrets.STAGING_SERVER_ID }}/actions/rebuild"
- run: scripts/initenv.sh
- name: append venv/bin to PATH
run: echo venv/bin >>$GITHUB_PATH
- name: upload TLS cert after rebuilding
run: |
echo " --- wait until staging.testrun.org VPS is rebuilt --- "
rm ~/.ssh/known_hosts
while ! ssh -o ConnectTimeout=180 -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org id -u ; do sleep 1 ; done
ssh -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org id -u
rsync -avz acme/ root@staging.testrun.org:/var/lib/acme || true
rsync -avz dkimkeys/ root@staging.testrun.org:/etc/dkimkeys || true
ssh -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org chown root:root -R /var/lib/acme
- name: run formatting checks
run: cmdeploy fmt -v
- name: run deploy-chatmail offline tests
run: pytest --pyargs cmdeploy
#- name: upload TLS cert after rebuilding
# run: |
# echo " --- wait until staging.testrun.org VPS is rebuilt --- "
# rm ~/.ssh/known_hosts
# while ! ssh -o ConnectTimeout=180 -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org id -u ; do sleep 1 ; done
# ssh -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org id -u
# rsync -avz acme root@staging.testrun.org:/var/lib/ || true
# rsync -avz dkim root@staging.testrun.org:/var/lib/rspamd/ || true
- run: cmdeploy init staging.testrun.org
- run: cmdeploy run
- name: set DNS entries
run: |
ssh -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org chown opendkim:opendkim -R /etc/dkimkeys
#ssh -o StrictHostKeyChecking=accept-new -v root@staging.testrun.org chown _rspamd:_rspamd -R /var/lib/rspamd/dkim
cmdeploy dns --zonefile staging-generated.zone
cat staging-generated.zone >> .github/workflows/staging.testrun.org-default.zone
cat .github/workflows/staging.testrun.org-default.zone

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@@ -1,40 +0,0 @@
# Changelog for chatmail deployment
## untagged
- better preserve notification order
([#263](https://github.com/deltachat/chatmail/pull/263))
- re-enable running the CI in pull requests, but not concurrently
([#258](https://github.com/deltachat/chatmail/pull/258))
## 1.1.0 - 2024-03-28
### The changelog starts to record changes from March 15th, 2024
- Move systemd unit templates to cmdeploy package
([#255](https://github.com/deltachat/chatmail/pull/255))
- Persist push tokens and support multiple device per address
([#254](https://github.com/deltachat/chatmail/pull/254))
- Avoid warning for regular doveauth protocol's hello message.
([#250](https://github.com/deltachat/chatmail/pull/250))
- Fix various tests to pass again with "cmdeploy test".
([#245](https://github.com/deltachat/chatmail/pull/245),
[#242](https://github.com/deltachat/chatmail/pull/242)
- Ensure lets-encrypt certificates are reloaded after renewal
([#244]) https://github.com/deltachat/chatmail/pull/244
- Persist tokens to avoid iOS users loosing push-notifications when the
chatmail metadata service is restarted (happens regularly during deploys)
([#238](https://github.com/deltachat/chatmail/pull/239)
- Fix failing sieve-script compile errors on incoming messages
([#237](https://github.com/deltachat/chatmail/pull/239)
- Fix quota reporting after expunging of old mails
([#233](https://github.com/deltachat/chatmail/pull/239)

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@@ -8,10 +8,8 @@ version = "0.2"
dependencies = [
"aiosmtpd",
"iniconfig",
"deltachat-rpc-server",
"deltachat-rpc-server==1.131.4",
"deltachat-rpc-client",
"filelock",
"requests",
]
[tool.setuptools]
@@ -22,7 +20,6 @@ where = ['src']
[project.scripts]
doveauth = "chatmaild.doveauth:main"
chatmail-metadata = "chatmaild.metadata:main"
filtermail = "chatmaild.filtermail:main"
echobot = "chatmaild.echo:main"
chatmail-metrics = "chatmaild.metrics:main"

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@@ -17,10 +17,6 @@ from .config import read_config, Config
NOCREATE_FILE = "/etc/chatmail-nocreate"
class UnknownCommand(ValueError):
"""dictproxy handler received an unkown command"""
def encrypt_password(password: str):
# https://doc.dovecot.org/configuration_manual/authentication/password_schemes/
passhash = crypt.crypt(password, crypt.METHOD_SHA512)
@@ -62,18 +58,17 @@ def is_allowed_to_create(config: Config, user, cleartext_password) -> bool:
return True
def get_user_data(db, config: Config, user):
def get_user_data(db, user):
with db.read_connection() as conn:
result = conn.get_user(user)
if result:
result["home"] = f"/home/vmail/mail/{config.mail_domain}/{user}"
result["uid"] = "vmail"
result["gid"] = "vmail"
return result
def lookup_userdb(db, config: Config, user):
return get_user_data(db, config, user)
def lookup_userdb(db, user):
return get_user_data(db, user)
def lookup_passdb(db, config: Config, user, cleartext_password):
@@ -85,7 +80,6 @@ def lookup_passdb(db, config: Config, user, cleartext_password):
"UPDATE users SET last_login=? WHERE addr=?", (int(time.time()), user)
)
userdata["home"] = f"/home/vmail/mail/{config.mail_domain}/{user}"
userdata["uid"] = "vmail"
userdata["gid"] = "vmail"
return userdata
@@ -131,12 +125,8 @@ def split_and_unescape(s):
def handle_dovecot_request(msg, db, config: Config):
# see https://doc.dovecot.org/3.0/developer_manual/design/dict_protocol/
short_command = msg[0]
if short_command == "H": # HELLO
# we don't do any checking on versions and just return
return
elif short_command == "L": # LOOKUP
if short_command == "L": # LOOKUP
parts = msg[1:].split("\t")
# Dovecot <2.3.17 has only one part,
@@ -152,7 +142,7 @@ def handle_dovecot_request(msg, db, config: Config):
if type == "userdb":
user = args[0]
if user.endswith(f"@{config.mail_domain}"):
res = lookup_userdb(db, config, user)
res = lookup_userdb(db, user)
if res:
reply_command = "O"
else:
@@ -167,22 +157,7 @@ def handle_dovecot_request(msg, db, config: Config):
reply_command = "N"
json_res = json.dumps(res) if res else ""
return f"{reply_command}{json_res}\n"
raise UnknownCommand(msg)
def handle_dovecot_protocol(rfile, wfile, db: Database, config: Config):
while True:
msg = rfile.readline().strip().decode()
if not msg:
break
try:
res = handle_dovecot_request(msg, db, config)
except UnknownCommand:
logging.warning("unknown command: %r", msg)
else:
if res:
wfile.write(res.encode("ascii"))
wfile.flush()
return None
class ThreadedUnixStreamServer(ThreadingMixIn, UnixStreamServer):
@@ -198,7 +173,16 @@ def main():
class Handler(StreamRequestHandler):
def handle(self):
try:
handle_dovecot_protocol(self.rfile, self.wfile, db, config)
while True:
msg = self.rfile.readline().strip().decode()
if not msg:
break
res = handle_dovecot_request(msg, db, config)
if res:
self.wfile.write(res.encode("ascii"))
self.wfile.flush()
else:
logging.warn("request had no answer: %r", msg)
except Exception:
logging.exception("Exception in the handler")
raise

View File

@@ -18,14 +18,14 @@ hooks = events.HookCollection()
@hooks.on(events.RawEvent)
def log_event(event):
if event.kind == EventType.INFO:
logging.info("%s", event.msg)
logging.info(event.msg)
elif event.kind == EventType.WARNING:
logging.warning("%s", event.msg)
logging.warning(event.msg)
@hooks.on(events.RawEvent(EventType.ERROR))
def log_error(event):
logging.error("%s", event.msg)
logging.error(event.msg)
@hooks.on(events.MemberListChanged)
@@ -48,9 +48,6 @@ def on_group_name_changed(event):
@hooks.on(events.NewMessage(func=lambda e: not e.command))
def echo(event):
snapshot = event.message_snapshot
if snapshot.is_info:
# Ignore info messages
return
if snapshot.text or snapshot.file:
snapshot.chat.send_message(text=snapshot.text, file=snapshot.file)
@@ -62,7 +59,6 @@ def help_command(event):
def main():
logging.basicConfig(level=logging.INFO)
path = os.environ.get("PATH")
venv_path = sys.argv[0].strip("echobot")
os.environ["PATH"] = path + ":" + venv_path
@@ -84,4 +80,5 @@ def main():
if __name__ == "__main__":
logging.basicConfig(level=logging.INFO)
main()

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@@ -1,35 +0,0 @@
import os
import logging
import json
import filelock
from contextlib import contextmanager
class FileDict:
"""Concurrency-safe multi-reader/single-writer persistent dict."""
def __init__(self, path):
self.path = path
self.lock_path = path.with_name(path.name + ".lock")
@contextmanager
def modify(self):
# the OS will release the lock if the process dies,
# and the contextmanager will otherwise guarantee release
with filelock.FileLock(self.lock_path):
data = self.read()
yield data
write_path = self.path.with_name(self.path.name + ".tmp")
with write_path.open("w") as f:
json.dump(data, f)
os.rename(write_path, self.path)
def read(self):
try:
with self.path.open("r") as f:
return json.load(f)
except FileNotFoundError:
return {}
except Exception:
logging.warning("corrupt serialization state at: %r", self.path)
return {}

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@@ -1,5 +1,5 @@
[Unit]
Description=Chatmail Postfix before queue filter
Description=Chatmail Postfix BeforeQeue filter
[Service]
ExecStart={execpath} {config_path}

View File

@@ -33,7 +33,7 @@ password_min_length = 9
passthrough_senders =
# list of e-mail recipients for which to accept outbound un-encrypted mails
passthrough_recipients = xstore@testrun.org groupsbot@hispanilandia.net
passthrough_recipients =
#
# Deployment Details

View File

@@ -1,7 +1,7 @@
[privacy]
passthrough_recipients = privacy@testrun.org xstore@testrun.org groupsbot@hispanilandia.net
passthrough_recipients = privacy@testrun.org
privacy_postal =
Merlinux GmbH, Represented by the managing director H. Krekel,

View File

@@ -1,206 +0,0 @@
import pwd
from pathlib import Path
from threading import Thread
from queue import Queue
from socketserver import (
UnixStreamServer,
StreamRequestHandler,
ThreadingMixIn,
)
import sys
import logging
import os
import requests
from .filedict import FileDict
DICTPROXY_HELLO_CHAR = "H"
DICTPROXY_LOOKUP_CHAR = "L"
DICTPROXY_ITERATE_CHAR = "I"
DICTPROXY_BEGIN_TRANSACTION_CHAR = "B"
DICTPROXY_SET_CHAR = "S"
DICTPROXY_COMMIT_TRANSACTION_CHAR = "C"
DICTPROXY_TRANSACTION_CHARS = "BSC"
# each SETMETADATA on this key appends to a list of unique device tokens
# which only ever get removed if the upstream indicates the token is invalid
METADATA_TOKEN_KEY = "devicetoken"
class Notifier:
def __init__(self, vmail_dir):
self.vmail_dir = vmail_dir
self.notification_dir = vmail_dir / "pending_notifications"
if not self.notification_dir.exists():
self.notification_dir.mkdir()
self.notification_queue = Queue()
def get_metadata_dict(self, addr):
return FileDict(self.vmail_dir / addr / "metadata.json")
def add_token(self, addr, token):
with self.get_metadata_dict(addr).modify() as data:
tokens = data.get(METADATA_TOKEN_KEY)
if tokens is None:
data[METADATA_TOKEN_KEY] = [token]
elif token not in tokens:
tokens.append(token)
def remove_token(self, addr, token):
with self.get_metadata_dict(addr).modify() as data:
tokens = data.get(METADATA_TOKEN_KEY, [])
try:
tokens.remove(token)
except ValueError:
pass
def get_tokens(self, addr):
return self.get_metadata_dict(addr).read().get(METADATA_TOKEN_KEY, [])
def new_message_for_addr(self, addr):
self.notification_dir.joinpath(addr).touch()
self.notification_queue.put(addr)
def thread_run_loop(self):
requests_session = requests.Session()
# on startup deliver all persisted notifications from last process run
self.notification_queue.put(None)
while 1:
self.thread_run_one(requests_session)
def thread_run_one(self, requests_session):
addr = self.notification_queue.get()
if addr is None:
# startup, notify any "pending" notifications from last run
for addr_path in self.notification_dir.iterdir():
if "@" in addr_path.name:
self.notify_tokens_for(requests_session, addr_path.name)
else:
self.notify_tokens_for(requests_session, addr)
def notify_tokens_for(self, requests_session, addr):
for token in self.get_tokens(addr):
response = requests_session.post(
"https://notifications.delta.chat/notify",
data=token,
timeout=60,
)
if response.status_code == 410:
# 410 Gone status code
# means the token is no longer valid.
self.remove_token(addr, token)
self.notification_dir.joinpath(addr).unlink(missing_ok=True)
def handle_dovecot_protocol(rfile, wfile, notifier):
transactions = {}
while True:
msg = rfile.readline().strip().decode()
if not msg:
break
res = handle_dovecot_request(msg, transactions, notifier)
if res:
wfile.write(res.encode("ascii"))
wfile.flush()
def handle_dovecot_request(msg, transactions, notifier):
# see https://doc.dovecot.org/3.0/developer_manual/design/dict_protocol/
short_command = msg[0]
parts = msg[1:].split("\t")
if short_command == DICTPROXY_LOOKUP_CHAR:
# Lpriv/43f5f508a7ea0366dff30200c15250e3/devicetoken\tlkj123poi@c2.testrun.org
keyparts = parts[0].split("/")
if keyparts[0] == "priv":
keyname = keyparts[2]
addr = parts[1]
if keyname == METADATA_TOKEN_KEY:
res = " ".join(notifier.get_tokens(addr))
return f"O{res}\n"
logging.warning("lookup ignored: %r", msg)
return "N\n"
elif short_command == DICTPROXY_ITERATE_CHAR:
# Empty line means ITER_FINISHED.
# If we don't return empty line Dovecot will timeout.
return "\n"
elif short_command == DICTPROXY_HELLO_CHAR:
return # no version checking
if short_command not in (DICTPROXY_TRANSACTION_CHARS):
logging.warning("unknown dictproxy request: %r", msg)
return
transaction_id = parts[0]
if short_command == DICTPROXY_BEGIN_TRANSACTION_CHAR:
addr = parts[1]
transactions[transaction_id] = dict(addr=addr, res="O\n")
elif short_command == DICTPROXY_COMMIT_TRANSACTION_CHAR:
# each set devicetoken operation persists directly
# and does not wait until a "commit" comes
# because our dovecot config does not involve
# multiple set-operations in a single commit
return transactions.pop(transaction_id)["res"]
elif short_command == DICTPROXY_SET_CHAR:
# For documentation on key structure see
# https://github.com/dovecot/core/blob/main/src/lib-storage/mailbox-attribute.h
keyname = parts[1].split("/")
value = parts[2] if len(parts) > 2 else ""
addr = transactions[transaction_id]["addr"]
if keyname[0] == "priv" and keyname[2] == METADATA_TOKEN_KEY:
notifier.add_token(addr, value)
elif keyname[0] == "priv" and keyname[2] == "messagenew":
notifier.new_message_for_addr(addr)
else:
# Transaction failed.
transactions[transaction_id]["res"] = "F\n"
class ThreadedUnixStreamServer(ThreadingMixIn, UnixStreamServer):
request_queue_size = 100
def main():
socket, username, vmail_dir = sys.argv[1:]
passwd_entry = pwd.getpwnam(username)
vmail_dir = Path(vmail_dir)
if not vmail_dir.exists():
logging.error("vmail dir does not exist: %r", vmail_dir)
return 1
notifier = Notifier(vmail_dir)
class Handler(StreamRequestHandler):
def handle(self):
try:
handle_dovecot_protocol(self.rfile, self.wfile, notifier)
except Exception:
logging.exception("Exception in the dovecot dictproxy handler")
raise
try:
os.unlink(socket)
except FileNotFoundError:
pass
# start notifier thread for signalling new messages to
# Delta Chat notification server
t = Thread(target=notifier.thread_run_loop)
t.setDaemon(True)
t.start()
# let notifier thread run once for any pending notifications from last run
notifier.message_arrived_event.set()
with ThreadedUnixStreamServer(socket, Handler) as server:
os.chown(socket, uid=passwd_entry.pw_uid, gid=passwd_entry.pw_gid)
try:
server.serve_forever()
except KeyboardInterrupt:
pass

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@@ -1,6 +1,4 @@
import random
from pathlib import Path
import os
import importlib.resources
import itertools
from email.parser import BytesParser
@@ -59,12 +57,7 @@ def db(tmpdir):
@pytest.fixture
def maildata(request):
try:
datadir = importlib.resources.files(__package__).joinpath("mail-data")
except TypeError:
# in python3.9 or lower, the above doesn't work, so we get datadir this way:
datadir = Path(os.getcwd()).joinpath("chatmaild/src/chatmaild/tests/mail-data")
datadir = importlib.resources.files(__package__).joinpath("mail-data")
assert datadir.exists(), datadir
def maildata(name, from_addr, to_addr):

View File

@@ -28,5 +28,5 @@ def test_read_config_testrun(make_config):
assert config.username_min_length == 9
assert config.username_max_length == 9
assert config.password_min_length == 9
assert "privacy@testrun.org" in config.passthrough_recipients
assert config.passthrough_recipients == ["privacy@testrun.org"]
assert config.passthrough_senders == []

View File

@@ -1,23 +1,17 @@
import io
import json
import pytest
import queue
import threading
import queue
import traceback
import chatmaild.doveauth
from chatmaild.doveauth import (
get_user_data,
lookup_passdb,
handle_dovecot_request,
handle_dovecot_protocol,
)
from chatmaild.doveauth import get_user_data, lookup_passdb, handle_dovecot_request
from chatmaild.database import DBError
def test_basic(db, example_config):
lookup_passdb(db, example_config, "asdf12345@chat.example.org", "q9mr3faue")
data = get_user_data(db, example_config, "asdf12345@chat.example.org")
data = get_user_data(db, "asdf12345@chat.example.org")
assert data
data2 = lookup_passdb(
db, example_config, "asdf12345@chat.example.org", "q9mr3jewvadsfaue"
@@ -43,7 +37,7 @@ def test_nocreate_file(db, monkeypatch, tmpdir, example_config):
lookup_passdb(
db, example_config, "newuser12@chat.example.org", "zequ0Aimuchoodaechik"
)
assert not get_user_data(db, example_config, "newuser12@chat.example.org")
assert not get_user_data(db, "newuser12@chat.example.org")
def test_db_version(db):
@@ -75,23 +69,6 @@ def test_handle_dovecot_request(db, example_config):
assert userdata["password"].startswith("{SHA512-CRYPT}")
def test_handle_dovecot_protocol_hello_is_skipped(db, example_config, caplog):
rfile = io.BytesIO(b"H3\t2\t0\t\tauth\n")
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, db, example_config)
assert wfile.getvalue() == b""
assert not caplog.messages
def test_handle_dovecot_protocol(db, example_config):
rfile = io.BytesIO(
b"H3\t2\t0\t\tauth\nLshared/userdb/foobar@chat.example.org\tfoobar@chat.example.org\n"
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, db, example_config)
assert wfile.getvalue() == b"N\n"
def test_50_concurrent_lookups_different_accounts(db, gencreds, example_config):
num_threads = 50
req_per_thread = 5

View File

@@ -1,19 +0,0 @@
from chatmaild.filedict import FileDict
def test_basic(tmp_path):
fdict = FileDict(tmp_path.joinpath("metadata"))
assert fdict.read() == {}
with fdict.modify() as d:
d["devicetoken"] = [1, 2, 3]
d["456"] = 4.2
new = fdict.read()
assert new["devicetoken"] == [1, 2, 3]
assert new["456"] == 4.2
def test_bad_marshal_file(tmp_path, caplog):
fdict1 = FileDict(tmp_path.joinpath("metadata"))
fdict1.path.write_bytes(b"l12k3l12k3l")
assert fdict1.read() == {}
assert "corrupt" in caplog.records[0].msg

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@@ -1,230 +0,0 @@
import io
import pytest
from chatmaild.metadata import (
handle_dovecot_request,
handle_dovecot_protocol,
Notifier,
)
@pytest.fixture
def notifier(tmp_path):
vmail_dir = tmp_path.joinpath("vmaildir")
vmail_dir.mkdir()
return Notifier(vmail_dir)
@pytest.fixture
def testaddr():
return "user.name@example.org"
@pytest.fixture
def testaddr2():
return "user2@example.org"
def test_notifier_persistence(tmp_path, testaddr, testaddr2):
notifier1 = Notifier(tmp_path)
notifier2 = Notifier(tmp_path)
assert not notifier1.get_tokens(testaddr)
assert not notifier2.get_tokens(testaddr)
notifier1.add_token(testaddr, "01234")
notifier1.add_token(testaddr2, "456")
assert notifier2.get_tokens(testaddr) == ["01234"]
assert notifier2.get_tokens(testaddr2) == ["456"]
notifier2.remove_token(testaddr, "01234")
assert not notifier1.get_tokens(testaddr)
assert notifier1.get_tokens(testaddr2) == ["456"]
def test_remove_nonexisting(tmp_path, testaddr):
notifier1 = Notifier(tmp_path)
notifier1.add_token(testaddr, "123")
notifier1.remove_token(testaddr, "1l23k1l2k3")
assert notifier1.get_tokens(testaddr) == ["123"]
def test_notifier_delete_without_set(notifier, testaddr):
notifier.remove_token(testaddr, "123")
assert not notifier.get_tokens(testaddr)
def test_handle_dovecot_request_lookup_fails(notifier, testaddr):
res = handle_dovecot_request(f"Lpriv/123/chatmail\t{testaddr}", {}, notifier)
assert res == "N\n"
def test_handle_dovecot_request_happy_path(notifier, testaddr):
transactions = {}
# set device token in a transaction
tx = "1111"
msg = f"B{tx}\t{testaddr}"
res = handle_dovecot_request(msg, transactions, notifier)
assert not res and not notifier.get_tokens(testaddr)
assert transactions == {tx: dict(addr=testaddr, res="O\n")}
msg = f"S{tx}\tpriv/guid00/devicetoken\t01234"
res = handle_dovecot_request(msg, transactions, notifier)
assert not res
assert len(transactions) == 1
assert notifier.get_tokens(testaddr) == ["01234"]
msg = f"C{tx}"
res = handle_dovecot_request(msg, transactions, notifier)
assert res == "O\n"
assert len(transactions) == 0
assert notifier.get_tokens(testaddr) == ["01234"]
# trigger notification for incoming message
tx2 = "2222"
assert handle_dovecot_request(f"B{tx2}\t{testaddr}", transactions, notifier) is None
msg = f"S{tx2}\tpriv/guid00/messagenew"
assert handle_dovecot_request(msg, transactions, notifier) is None
assert notifier.notification_queue.get() == testaddr
assert handle_dovecot_request(f"C{tx2}", transactions, notifier) == "O\n"
assert not transactions
assert notifier.notification_dir.joinpath(testaddr).exists()
def test_handle_dovecot_protocol_set_devicetoken(notifier):
rfile = io.BytesIO(
b"\n".join(
[
b"HELLO",
b"Btx00\tuser@example.org",
b"Stx00\tpriv/guid00/devicetoken\t01234",
b"Ctx00",
]
)
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, notifier)
assert wfile.getvalue() == b"O\n"
assert notifier.get_tokens("user@example.org") == ["01234"]
def test_handle_dovecot_protocol_set_get_devicetoken(notifier):
rfile = io.BytesIO(
b"\n".join(
[
b"HELLO",
b"Btx00\tuser@example.org",
b"Stx00\tpriv/guid00/devicetoken\t01234",
b"Ctx00",
]
)
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, notifier)
assert notifier.get_tokens("user@example.org") == ["01234"]
assert wfile.getvalue() == b"O\n"
rfile = io.BytesIO(
b"\n".join([b"HELLO", b"Lpriv/0123/devicetoken\tuser@example.org"])
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, notifier)
assert wfile.getvalue() == b"O01234\n"
def test_handle_dovecot_protocol_iterate(notifier):
rfile = io.BytesIO(
b"\n".join(
[
b"H",
b"I9\t0\tpriv/5cbe730f146fea6535be0d003dd4fc98/\tci-2dzsrs@nine.testrun.org",
]
)
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, notifier)
assert wfile.getvalue() == b"\n"
def test_handle_dovecot_protocol_messagenew(notifier):
rfile = io.BytesIO(
b"\n".join(
[
b"HELLO",
b"Btx01\tuser@example.org",
b"Stx01\tpriv/guid00/messagenew",
b"Ctx01",
]
)
)
wfile = io.BytesIO()
handle_dovecot_protocol(rfile, wfile, notifier)
assert wfile.getvalue() == b"O\n"
addr = notifier.notification_queue.get()
assert notifier.notification_dir.joinpath(addr).exists()
def test_notifier_thread_run(notifier, testaddr):
requests = []
class ReqMock:
def post(self, url, data, timeout):
requests.append((url, data, timeout))
class Result:
status_code = 200
return Result()
notifier.add_token(testaddr, "01234")
notifier.new_message_for_addr(testaddr)
notifier.thread_run_one(ReqMock())
url, data, timeout = requests[0]
assert data == "01234"
assert notifier.get_tokens(testaddr) == ["01234"]
def test_multi_device_notifier(notifier, testaddr):
requests = []
class ReqMock:
def post(self, url, data, timeout):
requests.append((url, data, timeout))
class Result:
status_code = 200
return Result()
notifier.add_token(testaddr, "01234")
notifier.add_token(testaddr, "56789")
notifier.new_message_for_addr(testaddr)
notifier.thread_run_one(ReqMock())
url, data, timeout = requests[0]
assert data == "01234"
url, data, timeout = requests[1]
assert data == "56789"
assert notifier.get_tokens(testaddr) == ["01234", "56789"]
def test_notifier_thread_run_gone_removes_token(notifier, testaddr):
requests = []
class ReqMock:
def post(self, url, data, timeout):
requests.append((url, data, timeout))
class Result:
status_code = 410 if data == "01234" else 200
return Result()
notifier.add_token(testaddr, "01234")
notifier.new_message_for_addr(testaddr)
assert notifier.get_tokens(testaddr) == ["01234"]
notifier.add_token(testaddr, "45678")
notifier.thread_run_one(ReqMock())
url, data, timeout = requests[0]
assert data == "01234"
url, data, timeout = requests[1]
assert data == "45678"
assert notifier.get_tokens(testaddr) == ["45678"]

View File

@@ -19,7 +19,6 @@ dependencies = [
"black",
"pytest",
"pytest-xdist",
"imap_tools",
]
[project.scripts]

View File

@@ -1,7 +1,6 @@
"""
Chat Mail pyinfra deploy.
"""
import sys
import importlib.resources
import subprocess
@@ -102,17 +101,13 @@ def _install_remote_venv_with_chatmaild(config) -> None:
"doveauth",
"filtermail",
"echobot",
"chatmail-metadata",
):
params = dict(
execpath=f"{remote_venv_dir}/bin/{fn}",
config_path=remote_chatmail_inipath,
remote_venv_dir=remote_venv_dir,
mail_domain=config.mail_domain,
)
source_path = importlib.resources.files(__package__).joinpath(
"service", f"{fn}.service.f"
)
source_path = importlib.resources.files("chatmaild").joinpath(f"{fn}.service.f")
content = source_path.read_text().format(**params).encode()
files.put(
@@ -131,93 +126,6 @@ def _install_remote_venv_with_chatmaild(config) -> None:
)
def _configure_opendkim(domain: str, dkim_selector: str = "dkim") -> bool:
"""Configures OpenDKIM"""
need_restart = False
main_config = files.template(
src=importlib.resources.files(__package__).joinpath("opendkim/opendkim.conf"),
dest="/etc/opendkim.conf",
user="root",
group="root",
mode="644",
config={"domain_name": domain, "opendkim_selector": dkim_selector},
)
need_restart |= main_config.changed
screen_script = files.put(
src=importlib.resources.files(__package__).joinpath("opendkim/screen.lua"),
dest="/etc/opendkim/screen.lua",
user="root",
group="root",
mode="644",
)
need_restart |= screen_script.changed
final_script = files.put(
src=importlib.resources.files(__package__).joinpath("opendkim/final.lua"),
dest="/etc/opendkim/final.lua",
user="root",
group="root",
mode="644",
)
need_restart |= final_script.changed
files.directory(
name="Add opendkim directory to /etc",
path="/etc/opendkim",
user="opendkim",
group="opendkim",
mode="750",
present=True,
)
keytable = files.template(
src=importlib.resources.files(__package__).joinpath("opendkim/KeyTable"),
dest="/etc/dkimkeys/KeyTable",
user="opendkim",
group="opendkim",
mode="644",
config={"domain_name": domain, "opendkim_selector": dkim_selector},
)
need_restart |= keytable.changed
signing_table = files.template(
src=importlib.resources.files(__package__).joinpath("opendkim/SigningTable"),
dest="/etc/dkimkeys/SigningTable",
user="opendkim",
group="opendkim",
mode="644",
config={"domain_name": domain, "opendkim_selector": dkim_selector},
)
need_restart |= signing_table.changed
files.directory(
name="Add opendkim socket directory to /var/spool/postfix",
path="/var/spool/postfix/opendkim",
user="opendkim",
group="opendkim",
mode="750",
present=True,
)
apt.packages(
name="apt install opendkim opendkim-tools",
packages=["opendkim", "opendkim-tools"],
)
if not host.get_fact(File, f"/etc/dkimkeys/{dkim_selector}.private"):
server.shell(
name="Generate OpenDKIM domain keys",
commands=[
f"opendkim-genkey -D /etc/dkimkeys -d {domain} -s {dkim_selector}"
],
_sudo=True,
_sudo_user="opendkim",
)
return need_restart
def _install_mta_sts_daemon() -> bool:
need_restart = False
@@ -292,16 +200,6 @@ def _configure_postfix(config: Config, debug: bool = False) -> bool:
)
need_restart |= header_cleanup.changed
# Login map that 1:1 maps email address to login.
login_map = files.put(
src=importlib.resources.files(__package__).joinpath("postfix/login_map"),
dest="/etc/postfix/login_map",
user="root",
group="root",
mode="644",
)
need_restart |= login_map.changed
return need_restart
@@ -327,30 +225,6 @@ def _configure_dovecot(config: Config, debug: bool = False) -> bool:
mode="644",
)
need_restart |= auth_config.changed
lua_push_notification_script = files.put(
src=importlib.resources.files(__package__).joinpath(
"dovecot/push_notification.lua"
),
dest="/etc/dovecot/push_notification.lua",
user="root",
group="root",
mode="644",
)
need_restart |= lua_push_notification_script.changed
sieve_script = files.put(
src=importlib.resources.files(__package__).joinpath("dovecot/default.sieve"),
dest="/etc/dovecot/default.sieve",
user="root",
group="root",
mode="644",
)
need_restart |= sieve_script.changed
if sieve_script.changed:
server.shell(
name="compile sieve script",
commands=["/usr/bin/sievec /etc/dovecot/default.sieve"],
)
files.template(
src=importlib.resources.files(__package__).joinpath("dovecot/expunge.cron.j2"),
@@ -431,20 +305,113 @@ def _configure_nginx(domain: str, debug: bool = False) -> bool:
return need_restart
def _remove_rspamd() -> None:
"""Remove rspamd"""
apt.packages(name="Remove rspamd", packages="rspamd", present=False)
def remove_opendkim() -> None:
"""Remove OpenDKIM, deprecated"""
files.file(
name="Remove legacy opendkim.conf",
path="/etc/opendkim.conf",
present=False,
)
files.directory(
name="Remove legacy opendkim socket directory from /var/spool/postfix",
path="/var/spool/postfix/opendkim",
present=False,
)
apt.packages(name="Remove openDKIM", packages="opendkim", present=False)
def _configure_rspamd(dkim_selector: str, mail_domain: str) -> bool:
"""Configures rspamd for Rate Limiting."""
need_restart = False
apt.packages(
name="apt install rspamd",
packages="rspamd",
)
for module in ["phishing", "rbl", "hfilter", "ratelimit"]:
disabled_module_conf = files.put(
name=f"disable {module} rspamd plugin",
src=importlib.resources.files(__package__).joinpath("rspamd/disabled.conf"),
dest=f"/etc/rspamd/local.d/{module}.conf",
user="root",
group="root",
mode="644",
)
need_restart |= disabled_module_conf.changed
options_inc = files.put(
name="disable fuzzy checks",
src=importlib.resources.files(__package__).joinpath("rspamd/options.inc"),
dest="/etc/rspamd/local.d/options.inc",
user="root",
group="root",
mode="644",
)
need_restart |= options_inc.changed
# https://rspamd.com/doc/modules/force_actions.html
force_actions_conf = files.put(
name="Set up rules to reject on DKIM, SPF and DMARC fails",
src=importlib.resources.files(__package__).joinpath(
"rspamd/force_actions.conf"
),
dest="/etc/rspamd/local.d/force_actions.conf",
user="root",
group="root",
mode="644",
)
need_restart |= force_actions_conf.changed
dkim_directory = "/var/lib/rspamd/dkim/"
dkim_key_path = f"{dkim_directory}{mail_domain}.{dkim_selector}.key"
dkim_dns_file = f"{dkim_directory}{mail_domain}.{dkim_selector}.zone"
dkim_config = files.template(
src=importlib.resources.files(__package__).joinpath(
"rspamd/dkim_signing.conf.j2"
),
dest="/etc/rspamd/local.d/dkim_signing.conf",
user="root",
group="root",
mode="644",
config={
"dkim_selector": str(dkim_selector),
"mail_domain": mail_domain,
"dkim_key_path": dkim_key_path,
},
)
need_restart |= dkim_config.changed
files.directory(
name="ensure DKIM key directory exists",
path=dkim_directory,
present=True,
user="_rspamd",
group="_rspamd",
)
if not host.get_fact(File, dkim_key_path):
server.shell(
name="Generate DKIM domain keys with rspamd",
commands=[
f"rspamadm dkim_keygen -b 2048 -s {dkim_selector} -d {mail_domain} -k {dkim_key_path} > {dkim_dns_file}"
],
_sudo=True,
_sudo_user="_rspamd",
)
return need_restart
def check_config(config):
mail_domain = config.mail_domain
if mail_domain != "testrun.org" and not mail_domain.endswith(".testrun.org"):
blocked_words = "merlinux schmieder testrun.org".split()
for key in config.__dict__:
value = config.__dict__[key]
if key.startswith("privacy") and any(
x in str(value) for x in blocked_words
):
for value in config.__dict__.values():
if any(x in str(value) for x in blocked_words):
raise ValueError(
f"please set your own privacy contacts/addresses in {config._inipath}"
)
@@ -462,28 +429,9 @@ def deploy_chatmail(config_path: Path) -> None:
from .www import build_webpages
apt.update(name="apt update", cache_time=24 * 3600)
server.group(name="Create vmail group", group="vmail", system=True)
server.user(name="Create vmail user", user="vmail", group="vmail", system=True)
server.group(name="Create opendkim group", group="opendkim", system=True)
server.user(
name="Create opendkim user",
user="opendkim",
groups=["opendkim"],
system=True,
)
server.user(
name="Add postfix user to opendkim group for socket access",
user="postfix",
groups=["opendkim"],
system=True,
)
apt.update(name="apt update", cache_time=24 * 3600)
apt.packages(
name="Install rsync",
packages=["rsync"],
)
# Run local DNS resolver `unbound`.
# `resolvconf` takes care of setting up /etc/resolv.conf
@@ -519,7 +467,7 @@ def deploy_chatmail(config_path: Path) -> None:
apt.packages(
name="Install Dovecot",
packages=["dovecot-imapd", "dovecot-lmtpd", "dovecot-sieve"],
packages=["dovecot-imapd", "dovecot-lmtpd"],
)
apt.packages(
@@ -546,15 +494,15 @@ def deploy_chatmail(config_path: Path) -> None:
mta_sts_need_restart = _install_mta_sts_daemon()
nginx_need_restart = _configure_nginx(mail_domain)
_remove_rspamd()
opendkim_need_restart = _configure_opendkim(mail_domain, "opendkim")
remove_opendkim()
rspamd_need_restart = _configure_rspamd("dkim", mail_domain)
systemd.service(
name="Start and enable OpenDKIM",
service="opendkim.service",
name="Start and enable rspamd",
service="rspamd.service",
running=True,
enabled=True,
restarted=opendkim_need_restart,
restarted=rspamd_need_restart,
)
systemd.service(
@@ -566,17 +514,6 @@ def deploy_chatmail(config_path: Path) -> None:
restarted=mta_sts_need_restart,
)
# Dovecot should be started before Postfix
# because it creates authentication socket
# required by Postfix.
systemd.service(
name="Start and enable Dovecot",
service="dovecot.service",
running=True,
enabled=True,
restarted=dovecot_need_restart,
)
systemd.service(
name="Start and enable Postfix",
service="postfix.service",
@@ -585,6 +522,14 @@ def deploy_chatmail(config_path: Path) -> None:
restarted=postfix_need_restart,
)
systemd.service(
name="Start and enable Dovecot",
service="dovecot.service",
running=True,
enabled=True,
restarted=dovecot_need_restart,
)
systemd.service(
name="Start and enable nginx",
service="nginx.service",

View File

@@ -1,4 +1,4 @@
SHELL=/bin/sh
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
MAILTO=root
20 16 * * * root /usr/bin/acmetool --batch reconcile && systemctl reload dovecot && systemctl reload postfix
20 16 * * * root /usr/bin/acmetool --batch reconcile

View File

@@ -6,10 +6,10 @@ _submissions._tcp.{chatmail_domain}. SRV 0 1 465 {chatmail_domain}.
_imap._tcp.{chatmail_domain}. SRV 0 1 143 {chatmail_domain}.
_imaps._tcp.{chatmail_domain}. SRV 0 1 993 {chatmail_domain}.
{chatmail_domain}. CAA 128 issue "letsencrypt.org;accounturi={acme_account_url}"
{chatmail_domain}. TXT "v=spf1 a:{chatmail_domain} ~all"
{chatmail_domain}. TXT "v=spf1 a:{chatmail_domain} -all"
_dmarc.{chatmail_domain}. TXT "v=DMARC1;p=reject;adkim=s;aspf=s"
_mta-sts.{chatmail_domain}. TXT "v=STSv1; id={sts_id}"
mta-sts.{chatmail_domain}. CNAME {chatmail_domain}.
www.{chatmail_domain}. CNAME {chatmail_domain}.
_smtp._tls.{chatmail_domain}. TXT "v=TLSRPTv1;rua=mailto:{email}"
{dkim_entry}
_adsp._domainkey.{chatmail_domain}. TXT "dkim=discardable"

View File

@@ -2,7 +2,6 @@
Provides the `cmdeploy` entry point function,
along with command line option and subcommand parsing.
"""
import argparse
import shutil
import subprocess

View File

@@ -34,11 +34,12 @@ class DNS:
cmd = "ip a | grep inet6 | grep 'scope global' | sed -e 's#/64 scope global##' | sed -e 's#inet6##'"
return self.shell(cmd).strip()
def get(self, typ: str, domain: str) -> str:
"""Get a DNS entry or empty string if there is none."""
def get(self, typ: str, domain: str) -> str | None:
"""Get a DNS entry"""
dig_result = self.shell(f"dig -r -q {domain} -t {typ} +short")
line = dig_result.partition("\n")[0]
return line
if line:
return line
def check_ptr_record(self, ip: str, mail_domain) -> bool:
"""Check the PTR record for an IPv4 or IPv6 address."""
@@ -53,25 +54,27 @@ def show_dns(args, out) -> int:
ssh = f"ssh root@{mail_domain}"
dns = DNS(out, mail_domain)
def read_dkim_entries(entry):
lines = []
for line in entry.split("\n"):
if line.startswith(";") or not line.strip():
continue
line = line.replace("\t", " ")
lines.append(line)
lines[0] = f"dkim._domainkey.{mail_domain}. IN TXT " + lines[0].strip(
"dkim._domainkey IN TXT "
)
return "\n".join(lines)
print("Checking your DKIM keys and DNS entries...")
try:
acme_account_url = out.shell_output(f"{ssh} -- acmetool account-url")
except subprocess.CalledProcessError:
print("Please run `cmdeploy run` first.")
return 1
dkim_selector = "opendkim"
dkim_pubkey = out.shell_output(
ssh + f" -- openssl rsa -in /etc/dkimkeys/{dkim_selector}.private"
" -pubout 2>/dev/null | awk '/-/{next}{printf(\"%s\",$0)}'"
dkim_entry = read_dkim_entries(
out.shell_output(f"{ssh} -- cat /var/lib/rspamd/dkim/{mail_domain}.dkim.zone")
)
dkim_entry_value = f"v=DKIM1;k=rsa;p={dkim_pubkey};s=email;t=s"
dkim_entry_str = ""
while len(dkim_entry_value) >= 255:
dkim_entry_str += '"' + dkim_entry_value[:255] + '" '
dkim_entry_value = dkim_entry_value[255:]
dkim_entry_str += '"' + dkim_entry_value + '"'
dkim_entry = f"{dkim_selector}._domainkey.{mail_domain}. TXT {dkim_entry_str}"
ipv6 = dns.get_ipv6()
reverse_ipv6 = dns.check_ptr_record(ipv6, mail_domain)
@@ -84,6 +87,7 @@ def show_dns(args, out) -> int:
f.read()
.format(
acme_account_url=acme_account_url,
email=f"root@{args.config.mail_domain}",
sts_id=datetime.datetime.now().strftime("%Y%m%d%H%M"),
chatmail_domain=args.config.mail_domain,
dkim_entry=dkim_entry,
@@ -99,9 +103,11 @@ def show_dns(args, out) -> int:
return 0
except TypeError:
pass
started_dkim_parsing = False
for line in zonefile.splitlines():
line = line.format(
acme_account_url=acme_account_url,
email=f"root@{args.config.mail_domain}",
sts_id=datetime.datetime.now().strftime("%Y%m%d%H%M"),
chatmail_domain=args.config.mail_domain,
dkim_entry=dkim_entry,
@@ -125,23 +131,28 @@ def show_dns(args, out) -> int:
current = dns.get("SRV", domain[:-1])
if current != f"{prio} {weight} {port} {value}":
to_print.append(line)
if " TXT " in line:
if " TXT " in line:
domain, value = line.split(" TXT ")
current = dns.get("TXT", domain.strip()[:-1])
if domain.startswith("_mta-sts."):
if current:
if current.split("id=")[0] == value.split("id=")[0]:
continue
# TXT records longer than 255 bytes
# are split into multiple <character-string>s.
# This typically happens with DKIM record
# which contains long RSA key.
#
# Removing `" "` before comparison
# to get back a single string.
if current.replace('" "', "") != value.replace('" "', ""):
if current != value:
to_print.append(line)
if " IN TXT ( " in line:
started_dkim_parsing = True
dkim_lines = [line]
if started_dkim_parsing and line.startswith('"'):
dkim_lines.append(" " + line)
domain, data = "\n".join(dkim_lines).split(" IN TXT ")
current = dns.get("TXT", domain.strip()[:-1])
if current:
current = "( %s" % (current.replace('" "', '"\n "'))
if current != data:
to_print.append(dkim_entry)
else:
to_print.append(dkim_entry)
exit_code = 0
if to_print:

View File

@@ -1,7 +0,0 @@
require ["imap4flags"];
# flag the message so it doesn't cause a push notification
if header :is ["Auto-Submitted"] ["auto-replied", "auto-generated"] {
addflag "$Auto";
}

View File

@@ -13,21 +13,13 @@ auth_cache_size = 100M
mail_debug = yes
{% endif %}
# Prevent warnings similar to:
# config: Warning: service auth { client_limit=1000 } is lower than required under max. load (10200). Counted for protocol services with service_count != 1: service lmtp { process_limit=100 } + service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=10000 }
# config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (10103). Counted with: service imap-urlauth-login { process_limit=100 } + service imap-login { process_limit=10000 } + service auth { process_limit=1 }
# master: Warning: service(stats): client_limit (1000) reached, client connections are being dropped
default_client_limit = 20000
mail_server_admin = mailto:root@{{ config.mail_domain }}
mail_server_comment = Chatmail server
mail_plugins = quota
# these are the capabilities Delta Chat cares about actually
# so let's keep the network overhead per login small
# https://github.com/deltachat/deltachat-core-rust/blob/master/src/imap/capabilities.rs
imap_capability = IMAP4rev1 IDLE MOVE QUOTA CONDSTORE NOTIFY METADATA XDELTAPUSH
imap_capability = IMAP4rev1 IDLE MOVE QUOTA CONDSTORE NOTIFY
# Authentication for system users.
@@ -77,32 +69,14 @@ mail_privileged_group = vmail
## Mail processes
##
# Pass all IMAP METADATA requests to the server implementing Dovecot's dict protocol.
mail_attribute_dict = proxy:/run/dovecot/metadata.socket:metadata
# Enable IMAP COMPRESS (RFC 4978).
# <https://datatracker.ietf.org/doc/html/rfc4978.html>
protocol imap {
mail_plugins = $mail_plugins imap_zlib imap_quota
imap_metadata = yes
}
protocol lmtp {
# quota plugin documentation:
# <https://doc.dovecot.org/configuration_manual/quota_plugin/>
#
# notify plugin is a dependency of push_notification plugin:
# <https://doc.dovecot.org/settings/plugin/notify-plugin/>
#
# push_notification plugin documentation:
# <https://doc.dovecot.org/configuration_manual/push_notification/>
#
# mail_lua and push_notification_lua are needed for Lua push notification handler.
# <https://doc.dovecot.org/configuration_manual/push_notification/#configuration>
#
# Sieve to mark messages that should not be notified as \Seen
# <https://doc.dovecot.org/configuration_manual/sieve/configuration/>
mail_plugins = $mail_plugins quota mail_lua notify push_notification push_notification_lua sieve
mail_plugins = $mail_plugins quota
}
plugin {
@@ -118,15 +92,7 @@ plugin {
# quota_over_flag_value = TRUE
}
# push_notification configuration
plugin {
# <https://doc.dovecot.org/configuration_manual/push_notification/#lua-lua>
push_notification_driver = lua:file=/etc/dovecot/push_notification.lua
}
plugin {
sieve_default = file:/etc/dovecot/default.sieve
}
service lmtp {
user=vmail

View File

@@ -1,11 +1,10 @@
# delete all mails after {{ config.delete_mails_after }} days, in the Inbox
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/cur/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/cur -mtime +{{ config.delete_mails_after }} -type f -delete
# or in any IMAP subfolder
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/.*/cur/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/.*/cur -mtime +{{ config.delete_mails_after }} -type f -delete
# even if they are unseen
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/new/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/.*/new/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/new -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/.*/new -mtime +{{ config.delete_mails_after }} -type f -delete
# or only temporary (but then they shouldn't be around after {{ config.delete_mails_after }} days anyway).
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/tmp/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -path '*/.*/tmp/*' -mtime +{{ config.delete_mails_after }} -type f -delete
3 0 * * * vmail find /home/vmail/mail/{{ config.mail_domain }} -name 'maildirsize' -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/tmp -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * dovecot find /home/vmail/mail/{{ config.mail_domain }}/*/.*/tmp -mtime +{{ config.delete_mails_after }} -type f -delete

View File

@@ -1,32 +0,0 @@
function dovecot_lua_notify_begin_txn(user)
return user
end
function contains(v, needle)
for _, keyword in ipairs(v) do
if keyword == needle then
return true
end
end
return false
end
function dovecot_lua_notify_event_message_new(user, event)
local mbox = user:mailbox(event.mailbox)
mbox:sync()
if user.username ~= event.from_address then
-- Incoming message
if not contains(event.keywords, "$Auto") then
-- Not an Auto-Submitted message, notifying.
-- Notify METADATA server about new message.
mbox:metadata_set("/private/messagenew", "")
end
end
mbox:free()
end
function dovecot_lua_notify_end_txn(ctx, success)
end

View File

@@ -1 +1 @@
{{ config.opendkim_selector }}._domainkey.{{ config.domain_name }} {{ config.domain_name }}:{{ config.opendkim_selector }}:/etc/dkimkeys/{{ config.opendkim_selector }}.private
dkim._domainkey.{{ config.domain_name }} {{ config.domain_name }}:{{ config.opendkim_selector }}:/etc/dkimkeys/dkim.private

View File

@@ -1,28 +0,0 @@
if odkim.internal_ip(ctx) == 1 then
-- Outgoing message will be signed,
-- no need to look for signatures.
return nil
end
nsigs = odkim.get_sigcount(ctx)
if nsigs == nil then
return nil
end
for i = 1, nsigs do
sig = odkim.get_sighandle(ctx, i - 1)
sigres = odkim.sig_result(sig)
-- All signatures that do not correspond to From:
-- were ignored in screen.lua and return sigres -1.
--
-- Any valid signature that was not ignored like this
-- means the message is acceptable.
if sigres == 0 then
return nil
end
end
odkim.set_reply(ctx, "554", "5.7.1", "No valid DKIM signature found")
odkim.set_result(ctx, SMFIS_REJECT)
return nil

View File

@@ -8,12 +8,10 @@ SyslogSuccess yes
# oversigned, because it is often the identity key used by reputation systems
# and thus somewhat security sensitive.
Canonicalization relaxed/simple
#Mode sv
#SubDomains no
OversignHeaders From
On-BadSignature reject
On-KeyNotFound reject
On-NoSignature reject
# Signing domain, selector, and key (required). For example, perform signing
# for domain "example.com" with selector "2020" (2020._domainkey.example.com),
# using the private key stored in /etc/dkimkeys/example.private. More granular
@@ -24,15 +22,6 @@ KeyFile /etc/dkimkeys/{{ config.opendkim_selector }}.private
KeyTable /etc/dkimkeys/KeyTable
SigningTable refile:/etc/dkimkeys/SigningTable
# Sign Autocrypt header in addition to the default specified in RFC 6376.
SignHeaders *,+autocrypt
# Script to ignore signatures that do not correspond to the From: domain.
ScreenPolicyScript /etc/opendkim/screen.lua
# Script to reject mails without a valid DKIM signature.
FinalPolicyScript /etc/opendkim/final.lua
# In Debian, opendkim runs as user "opendkim". A umask of 007 is required when
# using a local socket with MTAs that access the socket as a non-privileged
# user (for example, Postfix). You may need to add user "postfix" to group
@@ -40,10 +29,22 @@ FinalPolicyScript /etc/opendkim/final.lua
UserID opendkim
UMask 007
# Socket for the MTA connection (required). If the MTA is inside a chroot jail,
# it must be ensured that the socket is accessible. In Debian, Postfix runs in
# a chroot in /var/spool/postfix, therefore a Unix socket would have to be
# configured as shown on the last line below.
#Socket local:/run/opendkim/opendkim.sock
#Socket inet:8891@localhost
#Socket inet:8891
Socket local:/var/spool/postfix/opendkim/opendkim.sock
PidFile /run/opendkim/opendkim.pid
# Hosts for which to sign rather than verify, default is 127.0.0.1. See the
# OPERATION section of opendkim(8) for more information.
#InternalHosts 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12
# The trust anchor enables DNSSEC. In Debian, the trust anchor file is provided
# by the package dns-root-data.
TrustAnchorFile /usr/share/dns/root.key
#Nameservers 127.0.0.1

View File

@@ -1,21 +0,0 @@
-- Ignore signatures that do not correspond to the From: domain.
from_domain = odkim.get_fromdomain(ctx)
if from_domain == nil then
return nil
end
n = odkim.get_sigcount(ctx)
if n == nil then
return nil
end
for i = 1, n do
sig = odkim.get_sighandle(ctx, i - 1)
sig_domain = odkim.sig_getdomain(sig)
if from_domain ~= sig_domain then
odkim.sig_ignore(sig)
end
end
return nil

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@@ -1 +0,0 @@
/^(.*)$/ ${1}

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@@ -23,31 +23,6 @@ smtp_tls_CApath=/etc/ssl/certs
smtp_tls_security_level=may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_policy_maps = socketmap:inet:127.0.0.1:8461:postfix
smtpd_tls_protocols = >=TLSv1.2
# Disable anonymous cipher suites
# and known insecure algorithms.
#
# Disabling anonymous ciphers
# does not generally improve security
# because clients that want to verify certificate
# will not select them anyway,
# but makes cipher suite list shorter and security scanners happy.
# See <https://www.postfix.org/TLS_README.html> for discussion.
#
# Only ancient insecure ciphers should be disabled here
# as MTA clients that do not support more secure cipher
# likely do not support MTA-STS either and will
# otherwise fall back to using plaintext connection.
smtpd_tls_exclude_ciphers = aNULL, RC4, MD5, DES
# Override client's preference order.
# <https://www.postfix.org/postconf.5.html#tls_preempt_cipherlist>
#
# This is mostly to ensure cipher suites with forward secrecy
# are preferred over non cipher suites without forward secrecy.
# See <https://www.postfix.org/FORWARD_SECRECY_README.html#server_fs>.
tls_preempt_cipherlist = yes
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = {{ config.mail_domain }}
@@ -71,9 +46,5 @@ inet_protocols = all
virtual_transport = lmtp:unix:private/dovecot-lmtp
virtual_mailbox_domains = {{ config.mail_domain }}
mua_client_restrictions = permit_sasl_authenticated, reject
mua_sender_restrictions = reject_sender_login_mismatch, permit_sasl_authenticated, reject
mua_helo_restrictions = permit_mynetworks, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, permit
# 1:1 map MAIL FROM to SASL login name.
smtpd_sender_login_maps = regexp:/etc/postfix/login_map
smtpd_milters = inet:127.0.0.1:11332
non_smtpd_milters = $smtpd_milters

View File

@@ -11,10 +11,13 @@
# ==========================================================================
{% if debug == true %}
smtp inet n - y - - smtpd -v
{%- else %}
{% else %}
smtp inet n - y - - smtpd
{%- endif %}
-o smtpd_milters=unix:opendkim/opendkim.sock
{% endif %}
#smtp inet n - y - 1 postscreen
#smtpd pass - - y - - smtpd
#dnsblog unix - - y - 0 dnsblog
#tlsproxy unix - - y - 0 tlsproxy
submission inet n - y - - smtpd
-o syslog_name=postfix/submission
-o smtpd_tls_security_level=encrypt
@@ -79,8 +82,6 @@ filter unix - n n - - lmtp
# Local SMTP server for reinjecting filered mail.
localhost:{{ config.postfix_reinject_port }} inet n - n - 10 smtpd
-o syslog_name=postfix/reinject
-o smtpd_milters=unix:opendkim/opendkim.sock
-o cleanup_service_name=authclean
# Cleanup `Received` headers for authenticated mail
# to avoid leaking client IP.

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@@ -0,0 +1 @@
enabled = false;

View File

@@ -0,0 +1,10 @@
selector = {{ config.dkim_selector }}
use_esld = false # don't cut c1.testrun.org down to testrun.org
domain = {
{{ config.mail_domain }} {
selectors [
selector = {{ config.dkim_selector }}
path = {{ config.dkim_key_path }}
]
}
}

View File

@@ -0,0 +1,60 @@
rules {
## Reject on missing or invalid DKIM signatures.
##
## We require DKIM signature on incoming mails regardless of DMARC policy.
# R_DKIM_REJECT: DKIM reject inserted by `dkim` module.
REJECT_INVALID_DKIM {
action = "reject";
expression = "R_DKIM_REJECT";
message = "Rejected due to invalid DKIM signature";
}
# R_DKIM_PERMFAIL: permanent failure inserted by `dkim` module e.g. no DKIM DNS record found.
REJECT_PERMFAIL_DKIM {
action = "reject";
expression = "R_DKIM_PERMFAIL";
message = "Rejected due to missing DKIM DNS entry";
}
# No DKIM signature (R_DKIM_NA symbol inserted by `dkim` module).
REJECT_MISSING_DKIM {
action = "reject";
expression = "R_DKIM_NA";
message = "Rejected due to missing DKIM signature";
}
## Reject on SPF failure.
# - SPF failure (R_SPF_FAIL)
# - SPF permanent failure, e.g. failed to resolve DNS record referenced from SPF (R_SPF_PERMFAIL)
REJECT_SPF {
action = "reject";
expression = "R_SPF_FAIL | R_SPF_PERMFAIL";
message = "Rejected due to failed SPF check";
}
# Reject on DMARC policy check failure.
REJECT_DMARC {
action = "reject";
expression = "DMARC_POLICY_REJECT";
message = "Rejected due to DMARC policy";
}
# Do not reject if:
# - R_DKIM_TEMPFAIL, it is a DNS resolution failure
# and we do not want to lose messages because of faulty network.
#
# - R_SPF_SOFTFAIL
# - R_SPF_NEUTRAL
# - R_SPF_DNSFAIL
# - R_SPF_NA
#
# - DMARC_DNSFAIL
# - DMARC_NA
# - DMARC_POLICY_SOFTFAIL
# - DMARC_POLICY_QUARANTINE
# - DMARC_BAD_POLICY
}

View File

@@ -0,0 +1 @@
filters = "dkim";

View File

@@ -1,10 +0,0 @@
[Unit]
Description=Chatmail dict proxy for IMAP METADATA
[Service]
ExecStart={execpath} /run/dovecot/metadata.socket vmail /home/vmail/mail/{mail_domain}
Restart=always
RestartSec=30
[Install]
WantedBy=multi-user.target

View File

@@ -1,7 +1,6 @@
import pytest
import threading
import queue
import socket
from chatmaild.config import read_config
from cmdeploy.cmdeploy import main
@@ -79,24 +78,3 @@ def test_concurrent_logins_same_account(
for _ in conns:
assert login_results.get()
def test_no_vrfy(chatmail_config):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((chatmail_config.mail_domain, 25))
banner = sock.recv(1024)
print(banner)
sock.send(b"VRFY wrongaddress@%s\r\n" % (chatmail_config.mail_domain.encode(),))
result = sock.recv(1024)
print(result)
sock.send(b"VRFY echo@%s\r\n" % (chatmail_config.mail_domain.encode(),))
result2 = sock.recv(1024)
print(result2)
assert result[0:10] == result2[0:10]
sock.send(b"VRFY wrongaddress\r\n")
result = sock.recv(1024)
print(result)
sock.send(b"VRFY echo\r\n")
result2 = sock.recv(1024)
print(result2)
assert result[0:10] == result2[0:10] == b"252 2.0.0 "

View File

@@ -42,25 +42,13 @@ def test_reject_forged_from(cmsetup, maildata, gencreds, lp, forgeaddr):
assert "500" in str(e.value)
def test_authenticated_from(cmsetup, maildata):
"""Test that envelope FROM must be the same as login."""
user1, user2, user3 = cmsetup.gen_users(3)
msg = maildata("encrypted.eml", from_addr=user2.addr, to_addr=user3.addr)
with pytest.raises(smtplib.SMTPException) as e:
user1.smtp.sendmail(
from_addr=user2.addr, to_addrs=[user3.addr], msg=msg.as_string()
)
assert e.value.recipients[user3.addr][0] == 553
@pytest.mark.parametrize("from_addr", ["fake@example.org", "fake@testrun.org"])
def test_reject_missing_dkim(cmsetup, maildata, from_addr):
"""Test that emails with missing or wrong DMARC, DKIM, and SPF entries are rejected."""
recipient = cmsetup.gen_users(1)[0]
msg = maildata("plain.eml", from_addr=from_addr, to_addr=recipient.addr).as_string()
with smtplib.SMTP(cmsetup.maildomain, 25) as s:
with pytest.raises(smtplib.SMTPDataError, match="No valid DKIM signature"):
with pytest.raises(smtplib.SMTPDataError, match="missing DKIM signature"):
s.sendmail(from_addr=from_addr, to_addrs=recipient.addr, msg=msg)
@@ -83,18 +71,3 @@ def test_exceed_rate_limit(cmsetup, gencreds, maildata, chatmail_config):
assert b"4.7.1: Too much mail from" in outcome[1]
return
pytest.fail("Rate limit was not exceeded")
def test_expunged(remote, chatmail_config):
outdated_days = int(chatmail_config.delete_mails_after) + 1
find_cmds = [
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/cur/*' -mtime +{outdated_days} -type f",
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/.*/cur/*' -mtime +{outdated_days} -type f",
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/new/*' -mtime +{outdated_days} -type f",
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/.*/new/*' -mtime +{outdated_days} -type f",
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/tmp/*' -mtime +{outdated_days} -type f",
f"find /home/vmail/mail/{chatmail_config.mail_domain} -path '*/.*/tmp/*' -mtime +{outdated_days} -type f",
]
for cmd in find_cmds:
for line in remote.iter_output(cmd):
assert not line

View File

@@ -5,46 +5,6 @@ import random
import pytest
import requests
import ipaddress
import imap_tools
@pytest.fixture
def imap_mailbox(cmfactory):
(ac1,) = cmfactory.get_online_accounts(1)
user = ac1.get_config("addr")
password = ac1.get_config("mail_pw")
mailbox = imap_tools.MailBox(user.split("@")[1])
mailbox.login(user, password)
return mailbox
class TestMetadataTokens:
"Tests that use Metadata extension for storing tokens"
def test_set_get_metadata(self, imap_mailbox):
"set and get metadata token for an account"
client = imap_mailbox.client
client.send(b'a01 SETMETADATA INBOX (/private/devicetoken "1111" )\n')
res = client.readline()
assert b"OK Setmetadata completed" in res
client.send(b"a02 GETMETADATA INBOX /private/devicetoken\n")
res = client.readline()
assert res[:1] == b"*"
res = client.readline().strip().rstrip(b")")
assert res == b"1111"
assert b"Getmetadata completed" in client.readline()
client.send(b'a01 SETMETADATA INBOX (/private/devicetoken "2222" )\n')
res = client.readline()
assert b"OK Setmetadata completed" in res
client.send(b"a02 GETMETADATA INBOX /private/devicetoken\n")
res = client.readline()
assert res[:1] == b"*"
res = client.readline().strip().rstrip(b")")
assert res == b"1111 2222"
assert b"Getmetadata completed" in client.readline()
class TestEndToEndDeltaChat:
@@ -103,7 +63,7 @@ class TestEndToEndDeltaChat:
addr = ac2.get_config("addr").lower()
saved_ok = 0
for line in remote.iter_output("journalctl -n0 -f -u dovecot"):
for line in remote.iter_output("journalctl -f -u dovecot"):
if addr not in line:
# print(line)
continue
@@ -115,10 +75,7 @@ class TestEndToEndDeltaChat:
)
lp.indent("good, message sending failed because quota was exceeded")
return
if (
"stored mail into mailbox 'inbox'" in line
or "saved mail to inbox" in line
):
if "saved mail to inbox" in line:
saved_ok += 1
print(f"{saved_ok}: {line}")
if saved_ok >= num_to_send:
@@ -155,7 +112,7 @@ class TestEndToEndDeltaChat:
lp.sec("ac1 sends a message and ac2 marks it as seen")
chat = ac1.create_chat(ac2)
msg = chat.send_text("hi")
m = ac2._evtracker.wait_next_incoming_message()
m = ac2.wait_next_incoming_message()
m.mark_seen()
# we can only indirectly wait for mark-seen to cause an smtp-error
lp.sec("try to wait for markseen to complete and check error states")
@@ -175,19 +132,7 @@ def test_hide_senders_ip_address(cmfactory):
chat = cmfactory.get_accepted_chat(user1, user2)
chat.send_text("testing submission header cleanup")
user2._evtracker.wait_next_incoming_message()
user2.wait_next_incoming_message()
user2.direct_imap.select_folder("Inbox")
msg = user2.direct_imap.get_all_messages()[0]
assert public_ip not in msg.obj.as_string()
def test_echobot(cmfactory, chatmail_config, lp):
ac = cmfactory.get_online_accounts(1)[0]
lp.sec(f"Send message to echo@{chatmail_config.mail_domain}")
chat = ac.create_chat(f"echo@{chatmail_config.mail_domain}")
text = "hi, I hope you text me back"
chat.send_text(text)
lp.sec("Wait for reply from echobot")
reply = ac._evtracker.wait_next_incoming_message()
assert reply.text == text

View File

@@ -1,6 +1,6 @@
#!/bin/bash
set -e
python3 -m venv --upgrade-deps venv
python3 -m venv venv
venv/bin/pip install -e chatmaild
venv/bin/pip install -e cmdeploy