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Please refer to
[Delta Chat community standards and practices](https://delta.chat/en/community-standards)
which also apply for all chatmail developments.

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name: CI
on:
pull_request:
push:
jobs:
tox:
name: isolated chatmaild tests
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: run chatmaild tests
working-directory: chatmaild
run: pipx run tox
scripts:
name: deploy-chatmail tests
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: initenv
run: scripts/initenv.sh
- name: append venv/bin to PATH
run: echo venv/bin >>$GITHUB_PATH
- name: run formatting checks
run: cmdeploy fmt -v
- name: run deploy-chatmail offline tests
run: pytest --pyargs cmdeploy
# all other cmdeploy commands require a staging server
# see https://github.com/deltachat/chatmail/issues/100

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;; Zone file for staging-ipv4.testrun.org
$ORIGIN staging-ipv4.testrun.org.
$TTL 300
@ IN SOA ns.testrun.org. root.nine.testrun.org (
2023010101 ; Serial
7200 ; Refresh
3600 ; Retry
1209600 ; Expire
3600 ; Negative response caching TTL
)
;; Nameservers.
@ IN NS ns.testrun.org.
;; DNS records.
@ IN A 37.27.95.249
mta-sts.staging-ipv4.testrun.org. CNAME staging-ipv4.testrun.org.
iroh.staging-ipv4.testrun.org. CNAME staging-ipv4.testrun.org.
www.staging-ipv4.testrun.org. CNAME staging-ipv4.testrun.org.

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;; Zone file for staging2.testrun.org
$ORIGIN staging2.testrun.org.
$TTL 300
@ IN SOA ns.testrun.org. root.nine.testrun.org (
2023010101 ; Serial
7200 ; Refresh
3600 ; Retry
1209600 ; Expire
3600 ; Negative response caching TTL
)
;; Nameservers.
@ IN NS ns.testrun.org.
;; DNS records.
@ IN A 37.27.24.139
mta-sts.staging2.testrun.org. CNAME staging2.testrun.org.
iroh.staging2.testrun.org. CNAME staging2.testrun.org.
www.staging2.testrun.org. CNAME staging2.testrun.org.

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name: deploy on staging-ipv4.testrun.org, and run tests
on:
push:
branches:
- main
pull_request:
paths-ignore:
- 'scripts/**'
- '**/README.md'
- 'CHANGELOG.md'
- 'LICENSE'
jobs:
deploy:
name: deploy on staging-ipv4.testrun.org, and run tests
runs-on: ubuntu-latest
timeout-minutes: 30
concurrency:
group: ci-ipv4-${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: ${{ !contains(github.ref, '$GITHUB_REF') }}
steps:
- uses: jsok/serialize-workflow-action@v1
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
- uses: actions/checkout@v4
- name: prepare SSH
run: |
mkdir ~/.ssh
echo "${{ secrets.STAGING_SSH_KEY }}" >> ~/.ssh/id_ed25519
chmod 600 ~/.ssh/id_ed25519
ssh-keyscan staging-ipv4.testrun.org > ~/.ssh/known_hosts
# save previous acme & dkim state
rsync -avz root@staging-ipv4.testrun.org:/var/lib/acme acme-ipv4 || true
rsync -avz root@staging-ipv4.testrun.org:/etc/dkimkeys dkimkeys-ipv4 || true
# store previous acme & dkim state on ns.testrun.org, if it contains useful certs
if [ -f dkimkeys-ipv4/dkimkeys/opendkim.private ]; then rsync -avz -e "ssh -o StrictHostKeyChecking=accept-new" dkimkeys-ipv4 root@ns.testrun.org:/tmp/ || true; fi
if [ "$(ls -A acme-ipv4/acme/certs)" ]; then rsync -avz -e "ssh -o StrictHostKeyChecking=accept-new" acme-ipv4 root@ns.testrun.org:/tmp/ || true; fi
# make sure CAA record isn't set
scp .github/workflows/staging-ipv4.testrun.org-default.zone root@ns.testrun.org:/etc/nsd/staging-ipv4.testrun.org.zone
ssh -o StrictHostKeyChecking=accept-new root@ns.testrun.org sed -i '/CAA/d' /etc/nsd/staging-ipv4.testrun.org.zone
ssh root@ns.testrun.org nsd-checkzone staging-ipv4.testrun.org /etc/nsd/staging-ipv4.testrun.org.zone
ssh root@ns.testrun.org systemctl reload nsd
- name: rebuild staging-ipv4.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-ipv4.testrun.org VPS is rebuilt --- "
rm ~/.ssh/known_hosts
while ! ssh -o ConnectTimeout=180 -o StrictHostKeyChecking=accept-new -v root@staging-ipv4.testrun.org id -u ; do sleep 1 ; done
ssh -o StrictHostKeyChecking=accept-new -v root@staging-ipv4.testrun.org id -u
# download acme & dkim state from ns.testrun.org
rsync -e "ssh -o StrictHostKeyChecking=accept-new" -avz root@ns.testrun.org:/tmp/acme-ipv4 acme-restore || true
rsync -avz root@ns.testrun.org:/tmp/dkimkeys-ipv4 dkimkeys-restore || true
# restore acme & dkim state to staging2.testrun.org
rsync -avz acme-restore/acme-ipv4/acme root@staging-ipv4.testrun.org:/var/lib/ || true
rsync -avz dkimkeys-restore/dkimkeys-ipv4/dkimkeys root@staging-ipv4.testrun.org:/etc/ || true
ssh -o StrictHostKeyChecking=accept-new -v root@staging-ipv4.testrun.org chown root:root -R /var/lib/acme || true
- name: run formatting checks
run: cmdeploy fmt -v
- name: run deploy-chatmail offline tests
run: pytest --pyargs cmdeploy
- run: |
cmdeploy init staging-ipv4.testrun.org
sed -i 's#disable_ipv6 = False#disable_ipv6 = True#' chatmail.ini
- run: cmdeploy run
- name: set DNS entries
run: |
ssh -o StrictHostKeyChecking=accept-new -v root@staging-ipv4.testrun.org chown opendkim:opendkim -R /etc/dkimkeys
cmdeploy dns --zonefile staging-generated.zone
cat staging-generated.zone >> .github/workflows/staging-ipv4.testrun.org-default.zone
cat .github/workflows/staging-ipv4.testrun.org-default.zone
scp .github/workflows/staging-ipv4.testrun.org-default.zone root@ns.testrun.org:/etc/nsd/staging-ipv4.testrun.org.zone
ssh root@ns.testrun.org nsd-checkzone staging-ipv4.testrun.org /etc/nsd/staging-ipv4.testrun.org.zone
ssh root@ns.testrun.org systemctl reload nsd
- name: cmdeploy test
run: CHATMAIL_DOMAIN2=nine.testrun.org cmdeploy test --slow
- name: cmdeploy dns
run: cmdeploy dns -v

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name: deploy on staging2.testrun.org, and run tests
on:
push:
branches:
- main
pull_request:
paths-ignore:
- 'scripts/**'
- '**/README.md'
- 'CHANGELOG.md'
- 'LICENSE'
jobs:
deploy:
name: deploy on staging2.testrun.org, and run tests
runs-on: ubuntu-latest
timeout-minutes: 30
concurrency:
group: ci-${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: ${{ !contains(github.ref, '$GITHUB_REF') }}
steps:
- uses: jsok/serialize-workflow-action@v1
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
- uses: actions/checkout@v4
- name: prepare SSH
run: |
mkdir ~/.ssh
echo "${{ secrets.STAGING_SSH_KEY }}" >> ~/.ssh/id_ed25519
chmod 600 ~/.ssh/id_ed25519
ssh-keyscan staging2.testrun.org > ~/.ssh/known_hosts
# save previous acme & dkim state
rsync -avz root@staging2.testrun.org:/var/lib/acme . || true
rsync -avz root@staging2.testrun.org:/etc/dkimkeys . || true
# store previous acme & dkim state on ns.testrun.org, if it contains useful certs
if [ -f dkimkeys/opendkim.private ]; then rsync -avz -e "ssh -o StrictHostKeyChecking=accept-new" dkimkeys root@ns.testrun.org:/tmp/ || true; fi
if [ "$(ls -A acme/certs)" ]; then rsync -avz -e "ssh -o StrictHostKeyChecking=accept-new" acme root@ns.testrun.org:/tmp/ || true; fi
# make sure CAA record isn't set
scp -o StrictHostKeyChecking=accept-new .github/workflows/staging.testrun.org-default.zone root@ns.testrun.org:/etc/nsd/staging2.testrun.org.zone
ssh root@ns.testrun.org sed -i '/CAA/d' /etc/nsd/staging2.testrun.org.zone
ssh root@ns.testrun.org nsd-checkzone staging2.testrun.org /etc/nsd/staging2.testrun.org.zone
ssh root@ns.testrun.org systemctl reload nsd
- name: rebuild staging2.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 staging2.testrun.org VPS is rebuilt --- "
rm ~/.ssh/known_hosts
while ! ssh -o ConnectTimeout=180 -o StrictHostKeyChecking=accept-new -v root@staging2.testrun.org id -u ; do sleep 1 ; done
ssh -o StrictHostKeyChecking=accept-new -v root@staging2.testrun.org id -u
# download acme & dkim state from ns.testrun.org
rsync -e "ssh -o StrictHostKeyChecking=accept-new" -avz root@ns.testrun.org:/tmp/acme acme-restore || true
rsync -avz root@ns.testrun.org:/tmp/dkimkeys dkimkeys-restore || true
# restore acme & dkim state to staging2.testrun.org
rsync -avz acme-restore/acme root@staging2.testrun.org:/var/lib/ || true
rsync -avz dkimkeys-restore/dkimkeys root@staging2.testrun.org:/etc/ || true
ssh -o StrictHostKeyChecking=accept-new -v root@staging2.testrun.org chown root:root -R /var/lib/acme || true
- name: run formatting checks
run: cmdeploy fmt -v
- name: run deploy-chatmail offline tests
run: pytest --pyargs cmdeploy
- run: cmdeploy init staging2.testrun.org
- run: cmdeploy run --verbose
- name: set DNS entries
run: |
ssh -o StrictHostKeyChecking=accept-new root@staging2.testrun.org chown opendkim:opendkim -R /etc/dkimkeys
cmdeploy dns --zonefile staging-generated.zone --verbose
cat staging-generated.zone >> .github/workflows/staging.testrun.org-default.zone
cat .github/workflows/staging.testrun.org-default.zone
scp .github/workflows/staging.testrun.org-default.zone root@ns.testrun.org:/etc/nsd/staging2.testrun.org.zone
ssh root@ns.testrun.org nsd-checkzone staging2.testrun.org /etc/nsd/staging2.testrun.org.zone
ssh root@ns.testrun.org systemctl reload nsd
- name: cmdeploy test
run: CHATMAIL_DOMAIN2=nine.testrun.org cmdeploy test --slow
- name: cmdeploy dns
run: cmdeploy dns -v

5
.gitignore vendored
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@@ -3,9 +3,6 @@ __pycache__/
*.py[cod]
*$py.class
*.swp
*qr-*.png
chatmail.ini
# C extensions
*.so
@@ -162,5 +159,3 @@ cython_debug/
# and can be added to the global gitignore or merged into this file. For a more nuclear
# option (not recommended) you can uncomment the following to ignore the entire idea folder.
#.idea/
chatmail.zone

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# Changelog for chatmail deployment
## untagged
## 1.5.0 2024-12-20
- cmdeploy dns: always show recommended DNS records
([#463](https://github.com/deltachat/chatmail/pull/463))
- add `--all` to `cmdeploy dns`
([#462](https://github.com/deltachat/chatmail/pull/462))
- fix `_mta-sts` TXT DNS record
([#461](https://github.com/deltachat/chatmail/pull/461)
- deploy `iroh-relay` and also update "realtime relay services" in privacy policy.
([#434](https://github.com/deltachat/chatmail/pull/434))
([#451](https://github.com/deltachat/chatmail/pull/451))
- add guide to migrate chatmail to a new server
([#429](https://github.com/deltachat/chatmail/pull/429))
- disable anvil authentication penalty
([#414](https://github.com/deltachat/chatmail/pull/444)
- increase `request_queue_size` for UNIX sockets to 1000.
([#437](https://github.com/deltachat/chatmail/pull/437))
- add argument to `cmdeploy run` for specifying
a different SSH host than `mail_domain`
([#439](https://github.com/deltachat/chatmail/pull/439))
- query autoritative nameserver to bypass DNS cache
([#424](https://github.com/deltachat/chatmail/pull/424))
- add mtail support (new optional `mtail_address` ini value)
This defines the address on which [`mtail`](https://google.github.io/mtail/)
exposes its metrics collected from the logs.
If you want to collect the metrics with Prometheus,
setup a private network (e.g. WireGuard interface)
and assign an IP address from this network to the host.
If you do not plan to collect metrics,
keep this setting unset.
([#388](https://github.com/deltachat/chatmail/pull/388))
- fix checking for required DNS records
([#412](https://github.com/deltachat/chatmail/pull/412))
- add support for specifying whole domains for recipient passthrough list
([#408](https://github.com/deltachat/chatmail/pull/408))
- add a paragraph about "account deletion" to info page
([#405](https://github.com/deltachat/chatmail/pull/405))
- avoid nginx listening on ipv6 if v6 is dsiabled
([#402](https://github.com/deltachat/chatmail/pull/402))
- refactor ssh-based execution to allow organizing remote functions in
modules.
([#396](https://github.com/deltachat/chatmail/pull/396))
- trigger "apt upgrade" during "cmdeploy run"
([#398](https://github.com/deltachat/chatmail/pull/398))
- drop hispanilandia passthrough address
([#401](https://github.com/deltachat/chatmail/pull/401))
- set CAA record flags to 0
- add IMAP capabilities instead of overwriting them
([#413](https://github.com/deltachat/chatmail/pull/413))
- fix OpenPGP payload check
([#435](https://github.com/deltachat/chatmail/pull/435))
- fix Dovecot quota_max_mail_size to use max_message_size config value
([#438](https://github.com/deltachat/chatmail/pull/438))
## 1.4.1 2024-07-31
- fix metadata dictproxy which would confuse transactions
resulting in missed notifications and other issues.
([#393](https://github.com/deltachat/chatmail/pull/393))
([#394](https://github.com/deltachat/chatmail/pull/394))
- add optional "imap_rawlog" config option. If true,
.in/.out files are created in user home dirs
containing the imap protocol messages.
([#389](https://github.com/deltachat/chatmail/pull/389))
## 1.4.0 2024-07-28
- Add `disable_ipv6` config option to chatmail.ini.
Required if the server doesn't have IPv6 connectivity.
([#312](https://github.com/deltachat/chatmail/pull/312))
- allow current K9/Thunderbird-mail releases to send encrypted messages
outside by accepting their localized "encrypted subject" strings.
([#370](https://github.com/deltachat/chatmail/pull/370))
- Migrate and remove sqlite database in favor of password/lastlogin tracking
in a user's maildir.
([#379](https://github.com/deltachat/chatmail/pull/379))
- Require pyinfra V3 installed on the client side,
run `./scripts/initenv.sh` to upgrade locally.
([#378](https://github.com/deltachat/chatmail/pull/378))
- don't hardcode "/home/vmail" paths but rather set them
once in the config object and use it everywhere else,
thereby also improving testability.
([#351](https://github.com/deltachat/chatmail/pull/351))
temporarily introduced obligatory "passdb_path" and "mailboxes_dir"
settings but they were removed/obsoleted in
([#380](https://github.com/deltachat/chatmail/pull/380))
- BREAKING: new required chatmail.ini value 'delete_inactive_users_after = 100'
which removes users from database and mails after 100 days without any login.
([#350](https://github.com/deltachat/chatmail/pull/350))
- Refine DNS checking to distinguish between "required" and "recommended" settings
([#372](https://github.com/deltachat/chatmail/pull/372))
- reload nginx in the acmetool cronjob
([#360](https://github.com/deltachat/chatmail/pull/360))
- remove checking of reverse-DNS PTR records. Chatmail-servers don't
depend on it and even in the wider e-mail system it's not common anymore.
If it's an issue, a chatmail operator can still care to properly set reverse DNS.
([#348](https://github.com/deltachat/chatmail/pull/348))
- Make DNS-checking faster and more interactive, run it fully during "cmdeploy run",
also introducing a generic mechanism for rapid remote ssh-based python function execution.
([#346](https://github.com/deltachat/chatmail/pull/346))
- Don't fix file owner ship of /home/vmail
([#345](https://github.com/deltachat/chatmail/pull/345))
- Support iterating over all users with doveadm commands
([#344](https://github.com/deltachat/chatmail/pull/344))
- Test and fix for attempts to create inadmissible accounts
([#333](https://github.com/deltachat/chatmail/pull/321))
- check that OpenPGP has only PKESK, SKESK and SEIPD packets
([#323](https://github.com/deltachat/chatmail/pull/323),
[#324](https://github.com/deltachat/chatmail/pull/324))
- improve filtermail checks for encrypted messages and drop support for unencrypted MDNs
([#320](https://github.com/deltachat/chatmail/pull/320))
- replace `bash` with `/bin/sh`
([#334](https://github.com/deltachat/chatmail/pull/334))
- Increase number of logged in IMAP sessions to 50000
([#335](https://github.com/deltachat/chatmail/pull/335))
- filtermail: do not allow ASCII armor without actual payload
([#325](https://github.com/deltachat/chatmail/pull/325))
- Remove sieve to enable hardlink deduplication in LMTP
([#343](https://github.com/deltachat/chatmail/pull/343))
- dovecot: enable gzip compression on disk
([#341](https://github.com/deltachat/chatmail/pull/341))
- DKIM-sign Content-Type and oversign all signed headers
([#296](https://github.com/deltachat/chatmail/pull/296))
- Add nonci_accounts metric
([#347](https://github.com/deltachat/chatmail/pull/347))
- doveauth: log when a new account is created
([#349](https://github.com/deltachat/chatmail/pull/349))
- Multiplex HTTPS, IMAP and SMTP on port 443
([#357](https://github.com/deltachat/chatmail/pull/357))
## 1.3.0 - 2024-06-06
- don't check necessary DNS records on cmdeploy init anymore
([#316](https://github.com/deltachat/chatmail/pull/316))
- ensure cron and acl are installed
([#293](https://github.com/deltachat/chatmail/pull/293),
[#310](https://github.com/deltachat/chatmail/pull/310))
- change default for delete_mails_after from 40 to 20 days
([#300](https://github.com/deltachat/chatmail/pull/300))
- save journald logs only to memory and save nginx logs to journald instead of file
([#299](https://github.com/deltachat/chatmail/pull/299))
- fix writing of multiple obs repositories in `/etc/apt/sources.list`
([#290](https://github.com/deltachat/chatmail/pull/290))
- metadata: add support for `/shared/vendor/deltachat/irohrelay`
([#284](https://github.com/deltachat/chatmail/pull/284))
- Emit "XCHATMAIL" capability from IMAP server
([#278](https://github.com/deltachat/chatmail/pull/278))
- Move echobot `into /var/lib/echobot`
([#281](https://github.com/deltachat/chatmail/pull/281))
- Accept Let's Encrypt's new Terms of Services
([#275](https://github.com/deltachat/chatmail/pull/276))
- Reload Dovecot and Postfix when TLS certificate updates
([#271](https://github.com/deltachat/chatmail/pull/271))
- Use forked version of dovecot without hardcoded delays
([#270](https://github.com/deltachat/chatmail/pull/270))
## 1.2.0 - 2024-04-04
- Install dig on the server to resolve DNS records
([#267](https://github.com/deltachat/chatmail/pull/267))
- preserve notification order and exponentially backoff with
retries for tokens where we didn't get a successful return
([#265](https://github.com/deltachat/chatmail/pull/263))
- Run chatmail-metadata and doveauth as vmail
([#261](https://github.com/deltachat/chatmail/pull/261))
- Apply systemd restrictions to echobot
([#259](https://github.com/deltachat/chatmail/pull/259))
- 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)

21
LICENSE
View File

@@ -1,21 +0,0 @@
The MIT License (MIT)
Copyright (c) 2023, chatmail and delta chat teams
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

445
README.md
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@@ -1,440 +1,59 @@
# Chat Mail server configuration
<img width="800px" src="www/src/collage-top.png"/>
# Chatmail services optimized for Delta Chat apps
This repository helps to setup a ready-to-use chatmail server
This repository setups a ready-to-go chatmail instance
comprised of a minimal setup of the battle-tested
[postfix smtp](https://www.postfix.org) and [dovecot imap](https://www.dovecot.org) services.
[postfix smtp server](https://www.postfix.org) and [dovecot imap server](https://www.dovecot.org).
The setup is designed and optimized for providing chatmail accounts
for use by [Delta Chat apps](https://delta.chat).
## Getting started
Chatmail accounts are automatically created by a first login,
after which the initially specified password is required for using them.
1. prepare your local system:
## Deploying your own chatmail server
scripts/init.sh
To deploy chatmail on your own server, you must have set-up ssh authentication and need to use an ed25519 key, due to an [upstream bug in paramiko](https://github.com/paramiko/paramiko/issues/2191). You also need to add your private key to the local ssh-agent, because you can't type in your password during deployment.
2. set environment variable to the chatmail domain you want to setup:
We use `chat.example.org` as the chatmail domain in the following steps.
Please substitute it with your own domain.
export CHATMAIL_DOMAIN=c1.testrun.org # replace with your host
1. Install the `cmdeploy` command in a virtualenv
3. run the deploy of the chat mail instance:
```
git clone https://github.com/deltachat/chatmail
cd chatmail
scripts/initenv.sh
```
scripts/deploy.sh
2. Create chatmail configuration file `chatmail.ini`:
```
scripts/cmdeploy init chat.example.org # <-- use your domain
```
## Running tests and benchmarks (offline and online)
3. Point your domain to the server's IP address,
if you haven't done so already.
Verify that SSH root login works:
1. Set `CHATMAIL_SSH` so that `ssh root@$CHATMAIL_SSH` allows
to login to the chatmail instance server.
```
ssh root@chat.example.org # <-- use your domain
```
2. To run local and online tests:
4. Deploy to the remote chatmail server:
scripts/test.sh
```
scripts/cmdeploy run
```
This script will check that you have all necessary DNS records.
If DNS records are missing, it will recommend
which you should configure at your DNS provider
(it can take some time until they are public).
3. To run benchmarks against your chatmail instance:
### Other helpful commands:
scripts/bench.sh
To check the status of your remotely running chatmail service:
## Running tests (offline and online)
```
scripts/cmdeploy status
```
To display and check all recommended DNS records:
```
scripts/cmdeploy dns
```
To test whether your chatmail service is working correctly:
```
scripts/cmdeploy test
```
To measure the performance of your chatmail service:
```
scripts/cmdeploy bench
```
## Overview of this repository
This repository has four directories:
- [cmdeploy](https://github.com/deltachat/chatmail/tree/main/cmdeploy)
is a collection of configuration files
and a [pyinfra](https://pyinfra.com)-based deployment script.
- [chatmaild](https://github.com/deltachat/chatmail/tree/main/chatmaild)
is a python package containing several small services
which handle authentication,
trigger push notifications on new messages,
ensure that outbound mails are encrypted,
delete inactive users,
and some other minor things.
chatmaild can also be installed as a stand-alone python package.
- [www](https://github.com/deltachat/chatmail/tree/main/www)
contains the html, css, and markdown files
which make up a chatmail server's web page.
Edit them before deploying to make your chatmail server stand out.
- [scripts](https://github.com/deltachat/chatmail/tree/main/scripts)
offers two convenience tools for beginners;
`initenv.sh` installs the necessary dependencies to a local virtual environment,
and the `scripts/cmdeploy` script enables you
to run the `cmdeploy` command line tool in the local virtual environment.
### cmdeploy
The `cmdeploy/src/cmdeploy/cmdeploy.py` command line tool
helps with setting up and managing the chatmail service.
`cmdeploy init` creates the `chatmail.ini` config file.
`cmdeploy run` uses a [pyinfra](https://pyinfra.com/)-based [script](`cmdeploy/src/cmdeploy/__init__.py`)
to automatically install or upgrade all chatmail components on a server,
according to the `chatmail.ini` config.
The components of chatmail are:
- [postfix smtp server](https://www.postfix.org) accepts sent messages (both from your users and from other servers)
- [dovecot imap server](https://www.dovecot.org) stores messages for your users until they download them
- [nginx](https://nginx.org/) shows the web page with your privacy policy and additional information
- [acmetool](https://hlandau.github.io/acmetool/) manages TLS certificates for dovecot, postfix, and nginx
- [opendkim](http://www.opendkim.org/) for signing messages with DKIM and rejecting inbound messages without DKIM
- [mtail](https://google.github.io/mtail/) for collecting anonymized metrics in case you have monitoring
- and the chatmaild services, explained in the next section:
### chatmaild
chatmaild offers several commands
which differentiate a *chatmail* server from a classic mail server.
If you deploy them with cmdeploy,
they are run by systemd services in the background.
A short overview:
- [`doveauth`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/doveauth.py) implements
create-on-login account creation semantics and is used
by Dovecot during login authentication and by Postfix
which in turn uses [Dovecot SASL](https://doc.dovecot.org/configuration_manual/authentication/dict/#complete-example-for-authenticating-via-a-unix-socket)
to authenticate users
to send mails for them.
- [`filtermail`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/filtermail.py) prevents
unencrypted e-mail from leaving the chatmail service
and is integrated into postfix's outbound mail pipelines.
- [`chatmail-metadata`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/metadata.py) is contacted by a
[dovecot lua script](https://github.com/deltachat/chatmail/blob/main/cmdeploy/src/cmdeploy/dovecot/push_notification.lua)
to store user-specific server-side config.
On new messages,
it [passes the user's push notification token](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/notifier.py)
to [notifications.delta.chat](https://delta.chat/help#instant-delivery)
so the push notifications on the user's phone can be triggered
by Apple/Google.
- [`delete_inactive_users`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/delete_inactive_users.py)
deletes users if they have not logged in for a very long time.
The timeframe can be configured in `chatmail.ini`.
- [`lastlogin`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/lastlogin.py)
is contacted by dovecot when a user logs in
and stores the date of the login.
- [`echobot`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/echo.py)
is a small bot for test purposes.
It simply echoes back messages from users.
- [`chatmail-metrics`](https://github.com/deltachat/chatmail/blob/main/chatmaild/src/chatmaild/metrics.py)
collects some metrics and displays them at `https://example.org/metrics`.
### Home page and getting started for users
`cmdeploy run` also creates default static Web pages and deploys them
to a nginx web server with:
- a default `index.html` along with a QR code that users can click to
create accounts on your chatmail provider,
- a default `info.html` that is linked from the home page,
- a default `policy.html` that is linked from the home page.
All `.html` files are generated
by the according markdown `.md` file in the `www/src` directory.
### Refining the web pages
```
scripts/cmdeploy webdev
```
This starts a local live development cycle for chatmail Web pages:
- uses the `www/src/page-layout.html` file for producing static
HTML pages from `www/src/*.md` files
- continously builds the web presence reading files from `www/src` directory
and generating html files and copying assets to the `www/build` directory.
- Starts a browser window automatically where you can "refresh" as needed.
## Emergency Commands to disable automatic account creation
If you need to stop account creation,
e.g. because some script is wildly creating accounts,
login to the server with ssh and run:
```
touch /etc/chatmail-nocreate
```
While this file is present, account creation will be blocked.
## Dovecot/Postfix configuration
### Ports
[Postfix](http://www.postfix.org/) listens on ports 25 (smtp) and 587 (submission) and 465 (submissions).
[Dovecot](https://www.dovecot.org/) listens on ports 143 (imap) and 993 (imaps).
[nginx](https://www.nginx.com/) listens on port 8443 (https-alt) and 443 (https).
Port 443 multiplexes HTTPS, IMAP and SMTP using ALPN to redirect connections to ports 8443, 465 or 993.
[acmetool](https://hlandau.github.io/acmetool/) listens on port 80 (http).
Postfix listens on ports 25 (smtp) and 587 (submission) and 465 (submissions).
Dovecot listens on ports 143(imap) and 993 (imaps).
Delta Chat apps will, however, discover all ports and configurations
automatically by reading the [autoconfig XML file](https://www.ietf.org/archive/id/draft-bucksch-autoconfig-00.html) from the chatmail service.
## DNS
## Email authentication
For DKIM you must add a DNS entry as found in /etc/opendkim/selector.txt on your chatmail instance.
The above `scripts/deploy.sh` prints out the DKIM selector and DNS entry you
need to setup with your DNS provider.
chatmail servers rely on [DKIM](https://www.rfc-editor.org/rfc/rfc6376)
to authenticate incoming emails.
Incoming emails must have a valid DKIM signature with
Signing Domain Identifier (SDID, `d=` parameter in the DKIM-Signature header)
equal to the `From:` header domain.
This property is checked by OpenDKIM screen policy script
before validating the signatures.
This correpsonds to strict [DMARC](https://www.rfc-editor.org/rfc/rfc7489) alignment (`adkim=s`),
but chatmail does not rely on DMARC and does not consult the sender policy published in DMARC records.
Other legacy authentication mechanisms such as [iprev](https://www.rfc-editor.org/rfc/rfc8601#section-2.7.3)
and [SPF](https://www.rfc-editor.org/rfc/rfc7208) are also not taken into account.
If there is no valid DKIM signature on the incoming email,
the sender receives a "5.7.1 No valid DKIM signature found" error.
## Emergency Commands
Outgoing emails must be sent over authenticated connection
with envelope MAIL FROM (return path) corresponding to the login.
This is ensured by Postfix which maps login username
to MAIL FROM with
[`smtpd_sender_login_maps`](https://www.postfix.org/postconf.5.html#smtpd_sender_login_maps)
and rejects incorrectly authenticated emails with [`reject_sender_login_mismatch`](reject_sender_login_mismatch) policy.
`From:` header must correspond to envelope MAIL FROM,
this is ensured by `filtermail` proxy.
If you need to stop account creation,
e.g. because some script is wildly creating accounts,
just run `touch /tmp/nocreate`.
You can remove the file
as soon as the attacker was banned
by different means.
## Migrating chatmail server to a new host
If you want to migrate chatmail from an old machine
to a new machine,
you can use these steps.
They were tested with a linux laptop;
you might need to adjust some of the steps to your environment.
Let's assume that your `mail_domain` is `mail.example.org`,
all involved machines run Debian 12,
your old server's IP address is `13.37.13.37`,
and your new server's IP address is `13.12.23.42`.
During the guide, you might get a warning about changed SSH Host keys;
in this case, just run `ssh-keygen -R "mail.example.org"` as recommended
to make sure you can connect with SSH.
1. First, copy `/var/lib/acme` to the new server with
`ssh root@13.37.13.37 tar c /var/lib/acme | ssh root@13.12.23.42 tar x -C /var/lib/`.
This transfers your TLS certificate.
2. You should also copy `/etc/dkimkeys` to the new server with
`ssh root@13.37.13.37 tar c /etc/dkimkeys | ssh root@13.12.23.42 tar x -C /etc/`
so the DKIM DNS record stays correct.
3. On the new server, run `chown root: -R /var/lib/acme` and `chown root: -R /etc/dkimkeys` to make sure the permissions are correct.
4. Run `cmdeploy run --disable-mail --ssh-host 13.12.23.42` to install chatmail on the new machine.
postfix and dovecot are disabled for now,
we will enable them later.
5. Now, point DNS to the new IP addresses.
You can already remove the old IP addresses from DNS.
Existing Delta Chat users will still be able to connect
to the old server, send and receive messages,
but new users will fail to create new profiles
with your chatmail server.
If other servers try to deliver messages to your new server they will fail,
but normally email servers will retry delivering messages
for at least a week, so messages will not be lost.
6. Now you can run `cmdeploy run --disable-mail --ssh-host 13.37.13.37` to disable your old server.
Now your users will notice the migration
and will not be able to send or receive messages
until the migration is completed.
7. After everything is stopped,
you can copy the `/home/vmail/mail` directory to the new server.
It includes all user data, messages, password hashes, etc.
Just run: `ssh root@13.37.13.37 tar c /home/vmail/mail | ssh root@13.12.23.42 tar x -C /home/vmail/`
After this, your new server has all the necessary files to start operating :)
8. To be sure the permissions are still fine,
run `chown vmail: -R /home/vmail` on the new server.
9. Finally, you can run `cmdeploy run` to turn on chatmail on the new server.
Your users can continue using the chatmail server,
and messages which were sent after step 6. should arrive now.
Voilà!
## Setting up a reverse proxy
A chatmail server does not depend on the client IP address
for its operation, so it can be run behind a reverse proxy.
This will not even affect incoming mail authentication
as DKIM only checks the cryptographic signature
of the message and does not use the IP address as the input.
For example, you may want to self-host your chatmail server
and only use hosted VPS to provide a public IP address
for client connections and incoming mail.
You can connect chatmail server to VPS
using a tunnel protocol
such as [WireGuard](https://www.wireguard.com/)
and setup a reverse proxy on a VPS
to forward connections to the chatmail server
over the tunnel.
You can also setup multiple reverse proxies
for your chatmail server in different networks
to ensure your server is reachable even when
one of the IPs becomes inaccessible due to
hosting or routing problems.
Note that your server still needs
to be able to make outgoing connections on port 25
to send messages outside.
To setup a reverse proxy
(or rather Destination NAT, DNAT)
for your chatmail server,
put the following configuration in `/etc/nftables.conf`:
```
#!/usr/sbin/nft -f
flush ruleset
define wan = eth0
# Which ports to proxy.
#
# Note that SSH is not proxied
# so it is possible to log into the proxy server
# and not the original one.
define ports = { smtp, http, https, imap, imaps, submission, submissions }
# The host we want to proxy to.
define ipv4_address = AAA.BBB.CCC.DDD
define ipv6_address = [XXX::1]
table ip nat {
chain prerouting {
type nat hook prerouting priority dstnat; policy accept;
iif $wan tcp dport $ports dnat to $ipv4_address
}
chain postrouting {
type nat hook postrouting priority 0;
oifname $wan masquerade
}
}
table ip6 nat {
chain prerouting {
type nat hook prerouting priority dstnat; policy accept;
iif $wan tcp dport $ports dnat to $ipv6_address
}
chain postrouting {
type nat hook postrouting priority 0;
oifname $wan masquerade
}
}
table inet filter {
chain input {
type filter hook input priority filter; policy drop;
# Accept ICMP.
# It is especially important to accept ICMPv6 ND messages,
# otherwise IPv6 connectivity breaks.
icmp type { echo-request } accept
icmpv6 type { echo-request, nd-neighbor-solicit, nd-router-advert, nd-neighbor-advert } accept
# Allow incoming SSH connections.
tcp dport { ssh } accept
ct state established accept
}
chain forward {
type filter hook forward priority filter; policy drop;
ct state established accept
ip daddr $ipv4_address counter accept
ip6 daddr $ipv6_address counter accept
}
chain output {
type filter hook output priority filter;
}
}
```
Run `systemctl enable nftables.service`
to ensure configuration is reloaded when the proxy server reboots.
Uncomment in `/etc/sysctl.conf` the following two lines:
```
net.ipv4.ip_forward=1
net.ipv6.conf.all.forwarding=1
```
Then reboot the server or do `sysctl -p` and `nft -f /etc/nftables.conf`.
Once proxy server is set up,
you can add its IP address to the DNS.

View File

@@ -1,3 +0,0 @@
include src/chatmaild/ini/*.ini.f
include src/chatmaild/ini/*.ini
include src/chatmaild/tests/mail-data/*

View File

@@ -1,70 +1,34 @@
[build-system]
requires = ["setuptools>=61"]
requires = ["setuptools>=45"]
build-backend = "setuptools.build_meta"
[project]
name = "chatmaild"
version = "0.2"
version = "0.1"
dependencies = [
"aiosmtpd",
"iniconfig",
"deltachat-rpc-server",
"deltachat-rpc-client",
"filelock",
"requests",
"aiosmtpd"
]
[tool.setuptools]
include-package-data = true
[tool.setuptools.packages.find]
where = ['src']
[project.scripts]
doveauth = "chatmaild.doveauth:main"
chatmail-metadata = "chatmaild.metadata:main"
doveauth-dictproxy = "chatmaild.dictproxy:main"
filtermail = "chatmaild.filtermail:main"
echobot = "chatmaild.echo:main"
chatmail-metrics = "chatmaild.metrics:main"
delete_inactive_users = "chatmaild.delete_inactive_users:main"
lastlogin = "chatmaild.lastlogin:main"
[project.entry-points.pytest11]
"chatmaild.testplugin" = "chatmaild.tests.plugin"
[tool.pytest.ini_options]
addopts = "-v -ra --strict-markers"
log_format = "%(asctime)s %(levelname)s %(message)s"
log_date_format = "%Y-%m-%d %H:%M:%S"
log_level = "INFO"
[tool.ruff]
lint.select = [
"F", # Pyflakes
"I", # isort
"PLC", # Pylint Convention
"PLE", # Pylint Error
"PLW", # Pylint Warning
]
[tool.tox]
legacy_tox_ini = """
[tox]
isolated_build = true
envlist = lint,py
envlist = lint
[testenv:lint]
skipdist = True
skip_install = True
deps =
ruff
black
commands =
ruff format --quiet --diff src/
ruff check src/
[testenv]
deps = pytest
pdbpp
commands = pytest -v -rsXx {posargs}
black --quiet --check --diff src/
ruff src/
"""

View File

@@ -1 +0,0 @@

View File

@@ -1,59 +0,0 @@
"""Generated from deltachat, draft-ietf-lamps-header-protection, and
encrypted_subject localizations in
https://github.com/thunderbird/thunderbird-android/
"""
common_encrypted_subjects = {
"...",
"[...]",
"암호화된 메시지",
"Ĉifrita mesaĝo",
"Courriel chiffré",
"Dulrituð skilaboð",
"Encrypted Message",
"Fersifere berjocht",
"Kemennadenn enrineget",
"Krüptitud kiri",
"Krypterat meddelande",
"Krypteret besked",
"Kryptert melding",
"Mensagem criptografada",
"Mensagem encriptada",
"Mensaje cifrado",
"Mensaxe cifrada",
"Mesaj Criptat",
"Mesazh i Fshehtëzuar",
"Messaggio criptato",
"Messaghju cifratu",
"Missatge encriptat",
"Neges wedi'i Hamgryptio",
"Pesan terenkripsi",
"Salattu viesti",
"Şifreli İleti",
"Šifrēta ziņa",
"Šifrirana poruka",
"Šifrirano sporočilo",
"Šifruotas laiškas",
"Tin nhắn được mã hóa",
"Titkosított üzenet",
"Verschlüsselte Nachricht",
"Versleuteld bericht",
"Zašifrovaná zpráva",
"Zaszyfrowana wiadomość",
"Zifratu mezua",
"Κρυπτογραφημένο μήνυμα",
"Зашифроване повідомлення",
"Зашифрованное сообщение",
"Зашыфраваны ліст",
"Криптирано съобщение",
"Шифрована порука",
"დაშიფრული წერილი",
"הודעה מוצפנת",
"پیام رمزنگاری‌شده",
"رسالة مشفّرة",
"എൻക്രിപ്റ്റുചെയ്‌ത സന്ദേശം",
"加密邮件",
"已加密的訊息",
"暗号化されたメッセージ",
}

View File

@@ -1,117 +0,0 @@
from pathlib import Path
import iniconfig
from chatmaild.user import User
echobot_password_path = Path("/run/echobot/password")
def read_config(inipath):
assert Path(inipath).exists(), inipath
cfg = iniconfig.IniConfig(inipath)
params = cfg.sections["params"]
return Config(inipath, params=params)
class Config:
def __init__(self, inipath, params):
self._inipath = inipath
self.mail_domain = params["mail_domain"]
self.max_user_send_per_minute = int(params["max_user_send_per_minute"])
self.max_mailbox_size = params["max_mailbox_size"]
self.max_message_size = int(params.get("max_message_size", "31457280"))
self.delete_mails_after = params["delete_mails_after"]
self.delete_inactive_users_after = int(params["delete_inactive_users_after"])
self.username_min_length = int(params["username_min_length"])
self.username_max_length = int(params["username_max_length"])
self.password_min_length = int(params["password_min_length"])
self.passthrough_senders = params["passthrough_senders"].split()
self.passthrough_recipients = params["passthrough_recipients"].split()
self.filtermail_smtp_port = int(params["filtermail_smtp_port"])
self.postfix_reinject_port = int(params["postfix_reinject_port"])
self.mtail_address = params.get("mtail_address")
self.disable_ipv6 = params.get("disable_ipv6", "false").lower() == "true"
self.imap_rawlog = params.get("imap_rawlog", "false").lower() == "true"
if "iroh_relay" not in params:
self.iroh_relay = "https://" + params["mail_domain"]
self.enable_iroh_relay = True
else:
self.iroh_relay = params["iroh_relay"].strip()
self.enable_iroh_relay = False
self.privacy_postal = params.get("privacy_postal")
self.privacy_mail = params.get("privacy_mail")
self.privacy_pdo = params.get("privacy_pdo")
self.privacy_supervisor = params.get("privacy_supervisor")
# deprecated option
mbdir = params.get("mailboxes_dir", f"/home/vmail/mail/{self.mail_domain}")
self.mailboxes_dir = Path(mbdir.strip())
# old unused option (except for first migration from sqlite to maildir store)
self.passdb_path = Path(params.get("passdb_path", "/home/vmail/passdb.sqlite"))
def _getbytefile(self):
return open(self._inipath, "rb")
def get_user(self, addr):
if not addr or "@" not in addr or "/" in addr:
raise ValueError(f"invalid address {addr!r}")
maildir = self.mailboxes_dir.joinpath(addr)
if addr.startswith("echo@"):
password_path = echobot_password_path
else:
password_path = maildir.joinpath("password")
return User(maildir, addr, password_path, uid="vmail", gid="vmail")
def write_initial_config(inipath, mail_domain, overrides):
"""Write out default config file, using the specified config value overrides."""
from importlib.resources import files
inidir = files(__package__).joinpath("ini")
source_inipath = inidir.joinpath("chatmail.ini.f")
content = source_inipath.read_text().format(mail_domain=mail_domain)
# apply config overrides
new_lines = []
extra = overrides.copy()
for line in content.split("\n"):
new_line = line.strip()
if new_line and new_line[0] not in "#[":
name, value = map(str.strip, new_line.split("=", maxsplit=1))
value = extra.pop(name, value)
new_line = f"{name} = {value}"
new_lines.append(new_line)
for name, value in extra.items():
new_line = f"{name} = {value}"
new_lines.append(new_line)
content = "\n".join(new_lines)
# apply testrun privacy overrides
if mail_domain.endswith(".testrun.org"):
override_inipath = inidir.joinpath("override-testrun.ini")
privacy = iniconfig.IniConfig(override_inipath)["privacy"]
lines = []
for line in content.split("\n"):
for key, value in privacy.items():
value_lines = value.strip().split("\n")
if not line.startswith(f"{key} =") or not value_lines:
continue
if len(value_lines) == 1:
lines.append(f"{key} = {value}")
else:
lines.append(f"{key} =")
for vl in value_lines:
lines.append(f" {vl}")
break
else:
lines.append(line)
content = "\n".join(lines)
inipath.write_text(content)

View File

@@ -0,0 +1,140 @@
import sqlite3
import contextlib
import time
from pathlib import Path
class DBError(Exception):
"""error during an operation on the database."""
class Connection:
def __init__(self, sqlconn, write):
self._sqlconn = sqlconn
self._write = write
def close(self):
self._sqlconn.close()
def commit(self):
self._sqlconn.commit()
def rollback(self):
self._sqlconn.rollback()
def execute(self, query, params=()):
cur = self.cursor()
try:
cur.execute(query, params)
except sqlite3.IntegrityError as e:
raise DBError(e)
return cur
def cursor(self):
return self._sqlconn.cursor()
def create_user(self, addr: str, password: str):
"""Create a row in the users table."""
self.execute("PRAGMA foreign_keys=on")
q = """INSERT INTO users (addr, password, last_login)
VALUES (?, ?, ?)"""
self.execute(q, (addr, password, int(time.time())))
def get_user(self, addr: str) -> {}:
"""Get a row from the users table."""
q = "SELECT addr, password, last_login from users WHERE addr = ?"
row = self._sqlconn.execute(q, (addr,)).fetchone()
result = {}
if row:
result = dict(
user=row[0],
password=row[1],
last_login=row[2],
)
return result
class Database:
def __init__(self, path: str):
self.path = Path(path)
self.ensure_tables()
def _get_connection(
self, write=False, transaction=False, closing=False
) -> Connection:
# we let the database serialize all writers at connection time
# to play it very safe (we don't have massive amounts of writes).
mode = "ro"
if write:
mode = "rw"
if not self.path.exists():
mode = "rwc"
uri = "file:%s?mode=%s" % (self.path, mode)
sqlconn = sqlite3.connect(
uri,
timeout=60,
isolation_level=None if transaction else "DEFERRED",
uri=True,
)
# Enable Write-Ahead Logging to avoid readers blocking writers and vice versa.
if write:
sqlconn.execute("PRAGMA journal_mode=wal")
if transaction:
start_time = time.time()
while 1:
try:
sqlconn.execute("begin immediate")
break
except sqlite3.OperationalError:
# another thread may be writing, give it a chance to finish
time.sleep(0.1)
if time.time() - start_time > 5:
# if it takes this long, something is wrong
raise
conn = Connection(sqlconn, write=write)
if closing:
conn = contextlib.closing(conn)
return conn
@contextlib.contextmanager
def write_transaction(self):
conn = self._get_connection(closing=False, write=True, transaction=True)
try:
yield conn
except Exception:
conn.rollback()
conn.close()
raise
else:
conn.commit()
conn.close()
def read_connection(self, closing=True) -> Connection:
return self._get_connection(closing=closing, write=False)
def get_schema_version(self) -> int:
with self.read_connection() as conn:
dbversion = conn.execute("PRAGMA user_version").fetchone()[0]
return dbversion
CURRENT_DBVERSION = 1
def ensure_tables(self):
with self.write_transaction() as conn:
if self.get_schema_version() > 1:
raise DBError(
"version is %s; downgrading schema is not supported"
% (self.get_schema_version(),)
)
conn.execute(
"""
CREATE TABLE IF NOT EXISTS users (
addr TEXT PRIMARY KEY,
password TEXT,
last_login INTEGER
)
""",
)
conn.execute("PRAGMA user_version=%s" % (self.CURRENT_DBVERSION,))

View File

@@ -1,31 +0,0 @@
"""
Remove inactive users
"""
import os
import shutil
import sys
import time
from .config import read_config
def delete_inactive_users(config):
cutoff_date = time.time() - config.delete_inactive_users_after * 86400
for addr in os.listdir(config.mailboxes_dir):
try:
user = config.get_user(addr)
except ValueError:
continue
read_timestamp = user.get_last_login_timestamp()
if read_timestamp and read_timestamp < cutoff_date:
path = config.mailboxes_dir.joinpath(addr)
assert path == user.maildir
shutil.rmtree(path, ignore_errors=True)
def main():
(cfgpath,) = sys.argv[1:]
config = read_config(cfgpath)
delete_inactive_users(config)

View File

@@ -1,98 +1,121 @@
import logging
import os
from socketserver import StreamRequestHandler, ThreadingUnixStreamServer
import sys
import json
from socketserver import (
UnixStreamServer,
StreamRequestHandler,
ThreadingMixIn,
)
import pwd
import subprocess
from .database import Database
NOCREATE_FILE = "/etc/chatmail-nocreate"
class DictProxy:
def loop_forever(self, rfile, wfile):
# Transaction storage is local to each handler loop.
# Dovecot reuses transaction IDs across connections,
# starting transaction with the name `1`
# on two different connections to the same proxy sometimes.
transactions = {}
def encrypt_password(password: str):
password = password.encode("ascii")
# https://doc.dovecot.org/configuration_manual/authentication/password_schemes/
process = subprocess.Popen(
["doveadm", "pw", "-s", "SHA512-CRYPT"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
)
stdout_data, _stderr_data = process.communicate(
input=password + b"\n" + password + b"\n"
)
return stdout_data.decode("ascii").strip()
while True:
msg = rfile.readline().strip().decode()
if not msg:
break
res = self.handle_dovecot_request(msg, transactions)
if res:
wfile.write(res.encode("ascii"))
wfile.flush()
def create_user(db, user, password):
if os.path.exists(NOCREATE_FILE):
logging.warning(f"Didn't create account: {NOCREATE_FILE} exists. Delete the file to enable account creation.")
return
with db.write_transaction() as conn:
conn.create_user(user, password)
return dict(home=f"/home/vmail/{user}", uid="vmail", gid="vmail", password=password)
def handle_dovecot_request(self, msg, transactions):
# see https://doc.dovecot.org/developer_manual/design/dict_protocol/#dovecot-dict-protocol
short_command = msg[0]
def get_user_data(db, user):
with db.read_connection() as conn:
result = conn.get_user(user)
if result:
result["uid"] = "vmail"
result["gid"] = "vmail"
return result
def lookup_userdb(db, user):
return get_user_data(db, user)
def lookup_passdb(db, user, password):
userdata = get_user_data(db, user)
if not userdata:
return create_user(db, user, encrypt_password(password))
userdata["password"] = userdata["password"].strip()
return userdata
def handle_dovecot_request(msg, db):
print(f"received msg: {msg!r}", file=sys.stderr)
short_command = msg[0]
if short_command == "L": # LOOKUP
parts = msg[1:].split("\t")
keyname, user = parts[:2]
namespace, type, *args = keyname.split("/")
reply_command = "F"
res = ""
if namespace == "shared":
if type == "userdb":
res = lookup_userdb(db, user)
if res:
reply_command = "O"
else:
reply_command = "N"
elif type == "passdb":
res = lookup_passdb(db, user, password=args[0])
if res:
reply_command = "O"
else:
reply_command = "N"
print(f"res: {res!r}", file=sys.stderr)
json_res = json.dumps(res) if res else ""
return f"{reply_command}{json_res}\n"
return None
if short_command == "L":
return self.handle_lookup(parts)
elif short_command == "I":
return self.handle_iterate(parts)
elif short_command == "H":
return # no version checking
if short_command not in ("BSC"):
logging.warning(f"unknown dictproxy request: {msg!r}")
return
class ThreadedUnixStreamServer(ThreadingMixIn, UnixStreamServer):
pass
transaction_id = parts[0]
if short_command == "B":
return self.handle_begin_transaction(transaction_id, parts, transactions)
elif short_command == "C":
return self.handle_commit_transaction(transaction_id, parts, transactions)
elif short_command == "S":
addr = transactions[transaction_id]["addr"]
if not self.handle_set(addr, parts):
transactions[transaction_id]["res"] = "F\n"
logging.error(f"dictproxy-set failed for {addr!r}: {msg!r}")
def main():
socket = sys.argv[1]
passwd_entry = pwd.getpwnam(sys.argv[2])
db = Database(sys.argv[3])
def handle_lookup(self, parts):
logging.warning(f"lookup ignored: {parts!r}")
return "N\n"
class Handler(StreamRequestHandler):
def handle(self):
while True:
msg = self.rfile.readline().strip().decode()
if not msg:
break
res = handle_dovecot_request(msg, db)
if res:
print(f"sending result: {res!r}", file=sys.stderr)
self.wfile.write(res.encode("ascii"))
self.wfile.flush()
def handle_iterate(self, parts):
# Empty line means ITER_FINISHED.
# If we don't return empty line Dovecot will timeout.
return "\n"
def handle_begin_transaction(self, transaction_id, parts, transactions):
addr = parts[1]
transactions[transaction_id] = dict(addr=addr, res="O\n")
def handle_set(self, addr, parts):
# For documentation on key structure see
# https://github.com/dovecot/core/blob/main/src/lib-storage/mailbox-attribute.h
return False
def handle_commit_transaction(self, transaction_id, parts, transactions):
# return whatever "set" command(s) set as result.
return transactions.pop(transaction_id)["res"]
def serve_forever_from_socket(self, socket):
dictproxy = self
class Handler(StreamRequestHandler):
def handle(self):
try:
dictproxy.loop_forever(self.rfile, self.wfile)
except Exception:
logging.exception("Exception in the handler")
raise
try:
os.unlink(socket)
except FileNotFoundError:
pass
with ThreadedUnixStreamServer(socket, Handler) as server:
os.chown(socket, uid=passwd_entry.pw_uid, gid=passwd_entry.pw_gid)
try:
os.unlink(socket)
except FileNotFoundError:
server.serve_forever()
except KeyboardInterrupt:
pass
with CustomThreadingUnixStreamServer(socket, Handler) as server:
try:
server.serve_forever()
except KeyboardInterrupt:
pass
class CustomThreadingUnixStreamServer(ThreadingUnixStreamServer):
request_queue_size = 1000

View File

@@ -0,0 +1,10 @@
[Unit]
Description=Dict authentication proxy for dovecot
[Service]
ExecStart=/usr/local/bin/doveauth-dictproxy /run/dovecot/doveauth.socket vmail /home/vmail/passdb.sqlite
Restart=always
RestartSec=30
[Install]
WantedBy=multi-user.target

View File

@@ -1,156 +0,0 @@
import crypt
import json
import logging
import os
import sys
from .config import Config, read_config
from .dictproxy import DictProxy
from .migrate_db import migrate_from_db_to_maildir
NOCREATE_FILE = "/etc/chatmail-nocreate"
def encrypt_password(password: str):
# https://doc.dovecot.org/configuration_manual/authentication/password_schemes/
passhash = crypt.crypt(password, crypt.METHOD_SHA512)
return "{SHA512-CRYPT}" + passhash
def is_allowed_to_create(config: Config, user, cleartext_password) -> bool:
"""Return True if user and password are admissable."""
if os.path.exists(NOCREATE_FILE):
logging.warning(f"blocked account creation because {NOCREATE_FILE!r} exists.")
return False
if len(cleartext_password) < config.password_min_length:
logging.warning(
"Password needs to be at least %s characters long",
config.password_min_length,
)
return False
parts = user.split("@")
if len(parts) != 2:
logging.warning(f"user {user!r} is not a proper e-mail address")
return False
localpart, domain = parts
if localpart == "echo":
# echobot account should not be created in the database
return False
if (
len(localpart) > config.username_max_length
or len(localpart) < config.username_min_length
):
logging.warning(
"localpart %s has to be between %s and %s chars long",
localpart,
config.username_min_length,
config.username_max_length,
)
return False
return True
def split_and_unescape(s):
"""Split strings using double quote as a separator and backslash as escape character
into parts."""
out = ""
i = 0
while i < len(s):
c = s[i]
if c == "\\":
# Skip escape character.
i += 1
# This will raise IndexError if there is no character
# after escape character. This is expected
# as this is an invalid input.
out += s[i]
elif c == '"':
# Separator
yield out
out = ""
else:
out += c
i += 1
yield out
class AuthDictProxy(DictProxy):
def __init__(self, config):
super().__init__()
self.config = config
def handle_lookup(self, parts):
# Dovecot <2.3.17 has only one part,
# do not attempt to read any other parts for compatibility.
keyname = parts[0]
namespace, type, args = keyname.split("/", 2)
args = list(split_and_unescape(args))
config = self.config
reply_command = "F"
res = ""
if namespace == "shared":
if type == "userdb":
user = args[0]
if user.endswith(f"@{config.mail_domain}"):
res = self.lookup_userdb(user)
if res:
reply_command = "O"
else:
reply_command = "N"
elif type == "passdb":
user = args[1]
if user.endswith(f"@{config.mail_domain}"):
res = self.lookup_passdb(user, cleartext_password=args[0])
if res:
reply_command = "O"
else:
reply_command = "N"
json_res = json.dumps(res) if res else ""
return f"{reply_command}{json_res}\n"
def handle_iterate(self, parts):
# example: I0\t0\tshared/userdb/
if parts[2] == "shared/userdb/":
result = "".join(
f"Oshared/userdb/{user}\t\n" for user in self.iter_userdb()
)
return f"{result}\n"
def iter_userdb(self) -> list:
"""Get a list of all user addresses."""
return [x for x in os.listdir(self.config.mailboxes_dir) if "@" in x]
def lookup_userdb(self, addr):
return self.config.get_user(addr).get_userdb_dict()
def lookup_passdb(self, addr, cleartext_password):
user = self.config.get_user(addr)
userdata = user.get_userdb_dict()
if userdata:
return userdata
if not is_allowed_to_create(self.config, addr, cleartext_password):
return
user.set_password(encrypt_password(cleartext_password))
print(f"Created address: {addr}", file=sys.stderr)
return user.get_userdb_dict()
def main():
socket, cfgpath = sys.argv[1:]
config = read_config(cfgpath)
migrate_from_db_to_maildir(config)
dictproxy = AuthDictProxy(config=config)
dictproxy.serve_forever_from_socket(socket)

View File

@@ -1,104 +0,0 @@
#!/usr/bin/env python3
"""Advanced echo bot example.
it will echo back any message that has non-empty text and also supports the /help command.
"""
import logging
import os
import subprocess
import sys
from deltachat_rpc_client import Bot, DeltaChat, EventType, Rpc, events
from chatmaild.config import echobot_password_path, read_config
from chatmaild.doveauth import encrypt_password
from chatmaild.newemail import create_newemail_dict
hooks = events.HookCollection()
@hooks.on(events.RawEvent)
def log_event(event):
if event.kind == EventType.INFO:
logging.info(event.msg)
elif event.kind == EventType.WARNING:
logging.warning(event.msg)
@hooks.on(events.RawEvent(EventType.ERROR))
def log_error(event):
logging.error("%s", event.msg)
@hooks.on(events.MemberListChanged)
def on_memberlist_changed(event):
logging.info(
"member %s was %s", event.member, "added" if event.member_added else "removed"
)
@hooks.on(events.GroupImageChanged)
def on_group_image_changed(event):
logging.info("group image %s", "deleted" if event.image_deleted else "changed")
@hooks.on(events.GroupNameChanged)
def on_group_name_changed(event):
logging.info(f"group name changed, old name: {event.old_name}")
@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)
@hooks.on(events.NewMessage(command="/help"))
def help_command(event):
snapshot = event.message_snapshot
snapshot.chat.send_text("Send me any message and I will echo it back")
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
with Rpc() as rpc:
deltachat = DeltaChat(rpc)
system_info = deltachat.get_system_info()
logging.info(f"Running deltachat core {system_info.deltachat_core_version}")
accounts = deltachat.get_all_accounts()
account = accounts[0] if accounts else deltachat.add_account()
bot = Bot(account, hooks)
config = read_config(sys.argv[1])
addr = "echo@" + config.mail_domain
# Create password file
if bot.is_configured():
password = bot.account.get_config("mail_pw")
else:
password = create_newemail_dict(config)["password"]
echobot_password_path.write_text(encrypt_password(password))
# Give the user which doveauth runs as access to the password file.
subprocess.check_call(
["/usr/bin/setfacl", "-m", "user:vmail:r", echobot_password_path],
)
if not bot.is_configured():
bot.configure(addr, password)
bot.run_forever()
if __name__ == "__main__":
main()

View File

@@ -1,44 +0,0 @@
import json
import logging
import os
from contextlib import contextmanager
from random import randint
import filelock
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(f"corrupt serialization state at: {self.path!r}")
return {}
def write_bytes_atomic(path, content):
rint = randint(0, 10000000)
tmp = path.with_name(path.name + f".tmp-{rint}")
tmp.write_bytes(content)
os.rename(tmp, path)

View File

@@ -1,253 +1,109 @@
#!/usr/bin/env python3
import asyncio
import base64
import binascii
import logging
import sys
import time
from email import policy
from email.parser import BytesParser
from email.utils import parseaddr
from email import policy
from aiosmtpd.lmtp import LMTP
from aiosmtpd.controller import UnixSocketController
from smtplib import SMTP as SMTPClient
from aiosmtpd.controller import Controller
from .common_encrypted_subjects import common_encrypted_subjects
from .config import read_config
def check_openpgp_payload(payload: bytes):
"""Checks the OpenPGP payload.
OpenPGP payload must consist only of PKESK and SKESK packets
terminated by a single SEIPD packet.
Returns True if OpenPGP payload is correct,
False otherwise.
May raise IndexError while trying to read OpenPGP packet header
if it is truncated.
"""
i = 0
while i < len(payload):
# Only OpenPGP format is allowed.
if payload[i] & 0xC0 != 0xC0:
return False
packet_type_id = payload[i] & 0x3F
i += 1
if payload[i] < 192:
# One-octet length.
body_len = payload[i]
i += 1
elif payload[i] < 224:
# Two-octet length.
body_len = ((payload[i] - 192) << 8) + payload[i + 1] + 192
i += 2
elif payload[i] == 255:
# Five-octet length.
body_len = (
(payload[i + 1] << 24)
| (payload[i + 2] << 16)
| (payload[i + 3] << 8)
| payload[i + 4]
)
i += 5
else:
# Partial body length is not allowed.
return False
i += body_len
if i == len(payload):
# Last packet should be
# Symmetrically Encrypted and Integrity Protected Data Packet (SEIPD)
#
# This is the only place where this function may return `True`.
return packet_type_id == 18
elif packet_type_id not in [1, 3]:
# All packets except the last one must be either
# Public-Key Encrypted Session Key Packet (PKESK)
# or
# Symmetric-Key Encrypted Session Key Packet (SKESK)
return False
return False
def check_armored_payload(payload: str):
prefix = "-----BEGIN PGP MESSAGE-----\r\n\r\n"
if not payload.startswith(prefix):
return False
payload = payload.removeprefix(prefix)
suffix = "-----END PGP MESSAGE-----\r\n\r\n"
if not payload.endswith(suffix):
return False
payload = payload.removesuffix(suffix)
# Remove CRC24.
payload = payload.rpartition("=")[0]
try:
payload = base64.b64decode(payload)
except binascii.Error:
return False
try:
return check_openpgp_payload(payload)
except IndexError:
return False
def check_encrypted(message):
"""Check that the message is an OpenPGP-encrypted message.
MIME structure of the message must correspond to <https://www.rfc-editor.org/rfc/rfc3156>.
"""
"""Check that the message is an OpenPGP-encrypted message."""
if not message.is_multipart():
return False
if message.get("subject") not in common_encrypted_subjects:
if message.get("subject") != "...":
return False
if message.get_content_type() != "multipart/encrypted":
return False
parts_count = 0
for part in message.iter_parts():
# We explicitly check Content-Type of each part later,
# but this is to be absolutely sure `get_payload()` returns string and not list.
if part.is_multipart():
return False
if parts_count == 0:
if part.get_content_type() != "application/pgp-encrypted":
return False
payload = part.get_payload()
if payload.strip() != "Version: 1":
return False
elif parts_count == 1:
if part.get_content_type() != "application/octet-stream":
return False
if not check_armored_payload(part.get_payload()):
return False
else:
return False
parts_count += 1
return True
async def asyncmain_beforequeue(config):
port = config.filtermail_smtp_port
Controller(BeforeQueueHandler(config), hostname="127.0.0.1", port=port).start()
class ExampleController(UnixSocketController):
def factory(self):
return LMTP(self.handler, **self.SMTP_kwargs)
def recipient_matches_passthrough(recipient, passthrough_recipients):
for addr in passthrough_recipients:
if recipient == addr:
return True
if addr[0] == "@" and recipient.endswith(addr):
return True
return False
class BeforeQueueHandler:
def __init__(self, config):
self.config = config
self.send_rate_limiter = SendRateLimiter()
async def handle_MAIL(self, server, session, envelope, address, mail_options):
logging.info(f"handle_MAIL from {address}")
envelope.mail_from = address
max_sent = self.config.max_user_send_per_minute
if not self.send_rate_limiter.is_sending_allowed(address, max_sent):
return f"450 4.7.1: Too much mail from {address}"
parts = envelope.mail_from.split("@")
if len(parts) != 2:
return f"500 Invalid from address <{envelope.mail_from!r}>"
class ExampleHandler:
async def handle_RCPT(self, server, session, envelope, address, rcpt_options):
envelope.rcpt_tos.append(address)
return "250 OK"
async def handle_DATA(self, server, session, envelope):
logging.info("handle_DATA before-queue")
error = self.check_DATA(envelope)
if error:
return error
logging.info("re-injecting the mail that passed checks")
client = SMTPClient("localhost", self.config.postfix_reinject_port)
client.sendmail(envelope.mail_from, envelope.rcpt_tos, envelope.content)
return "250 OK"
logging.info("Processing DATA message from %s", envelope.mail_from)
def check_DATA(self, envelope):
"""the central filtering function for e-mails."""
logging.info(f"Processing DATA message from {envelope.mail_from}")
valid_recipients = []
message = BytesParser(policy=policy.default).parsebytes(envelope.content)
mail_encrypted = check_encrypted(message)
_, from_addr = parseaddr(message.get("from").strip())
envelope_from_domain = from_addr.split("@").pop()
logging.info(f"mime-from: {from_addr} envelope-from: {envelope.mail_from!r}")
if envelope.mail_from.lower() != from_addr.lower():
return f"500 Invalid FROM <{from_addr!r}> for <{envelope.mail_from!r}>"
if mail_encrypted:
print("Filtering encrypted mail.", file=sys.stderr)
else:
print("Filtering unencrypted mail.", file=sys.stderr)
if envelope.mail_from in self.config.passthrough_senders:
return
passthrough_recipients = self.config.passthrough_recipients
is_securejoin = message.get("secure-join") in [
"vc-request",
"vg-request",
]
if is_securejoin:
return
res = []
for recipient in envelope.rcpt_tos:
my_local_domain = envelope.mail_from.split("@")
if len(my_local_domain) != 2:
res += [f"500 Invalid from address <{envelope.mail_from}>"]
continue
if envelope.mail_from == recipient:
# Always allow sending emails to self.
valid_recipients += [recipient]
res += ["250 OK"]
continue
if recipient_matches_passthrough(recipient, passthrough_recipients):
recipient_local_domain = recipient.split("@")
if len(recipient_local_domain) != 2:
res += [f"500 Invalid address <{recipient}>"]
continue
res = recipient.split("@")
if len(res) != 2:
return f"500 Invalid address <{recipient}>"
_recipient_addr, recipient_domain = res
is_outgoing = recipient_domain != envelope_from_domain
if is_outgoing and not mail_encrypted:
print("Rejected unencrypted mail.", file=sys.stderr)
return f"500 Invalid unencrypted mail to <{recipient}>"
is_outgoing = recipient_local_domain[1] != my_local_domain[1]
if (
is_outgoing
and not mail_encrypted
and message.get("secure-join") != "vc-request"
and message.get("secure-join") != "vg-request"
):
res += ["500 Outgoing mail must be encrypted"]
continue
valid_recipients += [recipient]
res += ["250 OK"]
# Reinject the mail back into Postfix.
if valid_recipients:
logging.info("Reinjecting the mail")
client = SMTPClient("localhost", "10026")
client.sendmail(envelope.mail_from, valid_recipients, envelope.content)
return "\r\n".join(res)
class SendRateLimiter:
def __init__(self):
self.addr2timestamps = {}
def is_sending_allowed(self, mail_from, max_send_per_minute):
last = self.addr2timestamps.setdefault(mail_from, [])
now = time.time()
last[:] = [ts for ts in last if ts >= (now - 60)]
if len(last) <= max_send_per_minute:
last.append(now)
return True
return False
async def asyncmain(loop):
controller = ExampleController(
ExampleHandler(), unix_socket="/var/spool/postfix/private/filtermail"
)
controller.start()
def main():
args = sys.argv[1:]
assert len(args) == 1
config = read_config(args[0])
logging.basicConfig(level=logging.WARN)
logging.basicConfig(level=logging.INFO)
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
task = asyncmain_beforequeue(config)
loop.create_task(task)
loop.create_task(asyncmain(loop=loop))
loop.run_forever()
if __name__ == "__main__":
main()

View File

@@ -0,0 +1,10 @@
[Unit]
Description=Email filter for chatmail servers
[Service]
ExecStart=/usr/local/bin/filtermail
Restart=always
RestartSec=30
[Install]
WantedBy=multi-user.target

View File

@@ -1,106 +0,0 @@
[params]
# mail domain (MUST be set to fully qualified chat mail domain)
mail_domain = {mail_domain}
#
# If you only do private test deploys, you don't need to modify any settings below
#
#
# Restrictions on user addresses
#
# how many mails a user can send out per minute
max_user_send_per_minute = 60
# maximum mailbox size of a chatmail address
max_mailbox_size = 100M
# maximum message size for an e-mail in bytes
max_message_size = 31457280
# days after which mails are unconditionally deleted
delete_mails_after = 20
# days after which users without a successful login are deleted (database and mails)
delete_inactive_users_after = 90
# minimum length a username must have
username_min_length = 9
# maximum length a username can have
username_max_length = 9
# minimum length a password must have
password_min_length = 9
# list of chatmail addresses which can send outbound un-encrypted mail
passthrough_senders =
# list of e-mail recipients for which to accept outbound un-encrypted mails
# (space-separated, item may start with "@" to whitelist whole recipient domains)
passthrough_recipients = xstore@testrun.org
#
# Deployment Details
#
# where the filtermail SMTP service listens
filtermail_smtp_port = 10080
# postfix accepts on the localhost reinject SMTP port
postfix_reinject_port = 10025
# if set to "True" IPv6 is disabled
disable_ipv6 = False
# Defaults to https://iroh.{{mail_domain}} and running `iroh-relay` on the chatmail
# service.
# If you set it to anything else, the service will be disabled
# and users will be directed to use the given iroh relay URL.
# Set it to empty string if you want users to use their default iroh relay.
# iroh_relay =
# Address on which `mtail` listens,
# e.g. 127.0.0.1 or some private network
# address like 192.168.10.1.
# You can point Prometheus
# or some other OpenMetrics-compatible
# collector to
# http://{{mtail_address}}:3903/metrics
# and display collected metrics with Grafana.
#
# WARNING: do not expose this service
# to the public IP address.
#
# `mtail is not running if the setting is not set.
# mtail_address = 127.0.0.1
#
# Debugging options
#
# set to True if you want to track imap protocol execution
# in per-maildir ".in/.out" files.
# Note that you need to manually cleanup these files
# so use this option with caution on production servers.
imap_rawlog = false
#
# Privacy Policy
#
# postal address of privacy contact
privacy_postal =
# email address of privacy contact
privacy_mail =
# postal address of the privacy data officer
privacy_pdo =
# postal address of the privacy supervisor
privacy_supervisor =

View File

@@ -1,16 +0,0 @@
[privacy]
passthrough_recipients = privacy@testrun.org xstore@testrun.org
privacy_postal =
Merlinux GmbH, Represented by the managing director H. Krekel,
Reichgrafen Str. 20, 79102 Freiburg, Germany
privacy_mail = privacy@testrun.org
privacy_pdo =
Prof. Dr. Fabian Schmieder, lexICT UG (limited), Ostfeldstr. 49, 30559 Hannover.
You can contact him at *delta-privacy@merlinux.eu* (Keyword: DPO)
privacy_supervisor =
State Commissioner for Data Protection and Freedom of Information of
Baden-Württemberg in 70173 Stuttgart, Germany.

View File

@@ -1,31 +0,0 @@
import sys
from .config import read_config
from .dictproxy import DictProxy
class LastLoginDictProxy(DictProxy):
def __init__(self, config):
super().__init__()
self.config = config
def handle_set(self, addr, parts):
keyname = parts[1].split("/")
value = parts[2] if len(parts) > 2 else ""
if keyname[0] == "shared" and keyname[1] == "last-login":
if addr.startswith("echo@"):
return True
addr = keyname[2]
timestamp = int(value)
user = self.config.get_user(addr)
user.set_last_login_timestamp(timestamp)
return True
return False
def main():
socket, config_path = sys.argv[1:]
config = read_config(config_path)
dictproxy = LastLoginDictProxy(config=config)
dictproxy.serve_forever_from_socket(socket)

View File

@@ -1,101 +0,0 @@
import logging
import sys
from .config import read_config
from .dictproxy import DictProxy
from .filedict import FileDict
from .notifier import Notifier
class Metadata:
# 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
DEVICETOKEN_KEY = "devicetoken"
def __init__(self, vmail_dir):
self.vmail_dir = vmail_dir
def get_metadata_dict(self, addr):
return FileDict(self.vmail_dir / addr / "metadata.json")
def add_token_to_addr(self, addr, token):
with self.get_metadata_dict(addr).modify() as data:
tokens = data.setdefault(self.DEVICETOKEN_KEY, [])
if token not in tokens:
tokens.append(token)
def remove_token_from_addr(self, addr, token):
with self.get_metadata_dict(addr).modify() as data:
tokens = data.get(self.DEVICETOKEN_KEY, [])
if token in tokens:
tokens.remove(token)
def get_tokens_for_addr(self, addr):
mdict = self.get_metadata_dict(addr).read()
return mdict.get(self.DEVICETOKEN_KEY, [])
class MetadataDictProxy(DictProxy):
def __init__(self, notifier, metadata, iroh_relay=None):
super().__init__()
self.notifier = notifier
self.metadata = metadata
self.iroh_relay = iroh_relay
def handle_lookup(self, parts):
# Lpriv/43f5f508a7ea0366dff30200c15250e3/devicetoken\tlkj123poi@c2.testrun.org
keyparts = parts[0].split("/", 2)
if keyparts[0] == "priv":
keyname = keyparts[2]
addr = parts[1]
if keyname == self.metadata.DEVICETOKEN_KEY:
res = " ".join(self.metadata.get_tokens_for_addr(addr))
return f"O{res}\n"
elif keyparts[0] == "shared":
keyname = keyparts[2]
if (
keyname == "vendor/vendor.dovecot/pvt/server/vendor/deltachat/irohrelay"
and self.iroh_relay
):
# Handle `GETMETADATA "" /shared/vendor/deltachat/irohrelay`
return f"O{self.iroh_relay}\n"
logging.warning(f"lookup ignored: {parts!r}")
return "N\n"
def handle_set(self, addr, parts):
# 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 ""
if keyname[0] == "priv" and keyname[2] == self.metadata.DEVICETOKEN_KEY:
self.metadata.add_token_to_addr(addr, value)
return True
elif keyname[0] == "priv" and keyname[2] == "messagenew":
self.notifier.new_message_for_addr(addr, self.metadata)
return True
return False
def main():
socket, config_path = sys.argv[1:]
config = read_config(config_path)
iroh_relay = config.iroh_relay
vmail_dir = config.mailboxes_dir
if not vmail_dir.exists():
logging.error("vmail dir does not exist: %r", vmail_dir)
return 1
queue_dir = vmail_dir / "pending_notifications"
queue_dir.mkdir(exist_ok=True)
metadata = Metadata(vmail_dir)
notifier = Notifier(queue_dir)
notifier.start_notification_threads(metadata.remove_token_from_addr)
dictproxy = MetadataDictProxy(
notifier=notifier, metadata=metadata, iroh_relay=iroh_relay
)
dictproxy.serve_forever_from_socket(socket)

View File

@@ -1,30 +0,0 @@
#!/usr/bin/env python3
import sys
from pathlib import Path
def main(vmail_dir=None):
if vmail_dir is None:
vmail_dir = sys.argv[1]
accounts = 0
ci_accounts = 0
for path in Path(vmail_dir).iterdir():
accounts += 1
if path.name[:3] in ("ci-", "ac_"):
ci_accounts += 1
print("# HELP total number of accounts")
print("# TYPE accounts gauge")
print(f"accounts {accounts}")
print("# HELP number of CI accounts")
print("# TYPE ci_accounts gauge")
print(f"ci_accounts {ci_accounts}")
print("# HELP number of non-CI accounts")
print("# TYPE nonci_accounts gauge")
print(f"nonci_accounts {accounts - ci_accounts}")
if __name__ == "__main__":
main()

View File

@@ -1,63 +0,0 @@
"""
migration code from old sqlite databases into per-maildir "password" files
where mtime reflects and is updated to be the "last-login" time.
"""
import logging
import os
import sqlite3
import sys
from chatmaild.config import read_config
def get_all_rows(path):
assert path.exists()
uri = f"file:{path}?mode=ro"
sqlconn = sqlite3.connect(uri, timeout=60, isolation_level="DEFERRED", uri=True)
cur = sqlconn.cursor()
cur.execute("SELECT * from users")
rows = cur.fetchall()
sqlconn.close()
return rows
def migrate_from_db_to_maildir(config, chunking=10000):
path = config.passdb_path
if not path.exists():
return
all_rows = get_all_rows(path)
# don't transfer special/CI accounts
rows = [row for row in all_rows if row[0][:3] not in ("ci-", "ac_")]
logging.info(f"ignoring {len(all_rows)-len(rows)} CI accounts")
logging.info(f"migrating {len(rows)} sqlite database passwords to user dirs")
for i, row in enumerate(rows):
addr = row[0]
enc_password = row[1]
user = config.get_user(addr)
user.set_password(enc_password)
if len(row) == 3 and row[2]:
timestamp = int(row[2])
user.set_last_login_timestamp(timestamp)
if i > 0 and i % chunking == 0:
logging.info(f"migration-progress: {i} passwords transferred")
logging.info("migration: all passwords migrated")
oldpath = config.passdb_path.with_suffix(config.passdb_path.suffix + ".old")
os.rename(config.passdb_path, oldpath)
for path in config.passdb_path.parent.iterdir():
if path.name.startswith(config.passdb_path.name + "-"):
path.unlink()
logging.info(f"migration: moved database to {oldpath!r}")
if __name__ == "__main__":
config = read_config(sys.argv[1])
logging.basicConfig(level=logging.INFO)
migrate_from_db_to_maildir(config)

View File

@@ -1,36 +0,0 @@
#!/usr/local/lib/chatmaild/venv/bin/python3
"""CGI script for creating new accounts."""
import json
import random
import secrets
import string
from chatmaild.config import Config, read_config
CONFIG_PATH = "/usr/local/lib/chatmaild/chatmail.ini"
ALPHANUMERIC = string.ascii_lowercase + string.digits
ALPHANUMERIC_PUNCT = string.ascii_letters + string.digits + string.punctuation
def create_newemail_dict(config: Config):
user = "".join(random.choices(ALPHANUMERIC, k=config.username_min_length))
password = "".join(
secrets.choice(ALPHANUMERIC_PUNCT)
for _ in range(config.password_min_length + 3)
)
return dict(email=f"{user}@{config.mail_domain}", password=f"{password}")
def print_new_account():
config = read_config(CONFIG_PATH)
creds = create_newemail_dict(config)
print("Content-Type: application/json")
print("")
print(json.dumps(creds))
if __name__ == "__main__":
print_new_account()

View File

@@ -1,166 +0,0 @@
"""
This modules provides notification machinery for transmitting device tokens to
a central notification server which in turn contacts a phone provider's notification server
to trigger Delta Chat apps to retrieve messages and provide instant notifications to users.
The Notifier class arranges the queuing of tokens in separate PriorityQueues
from which NotifyThreads take and transmit them via HTTPS
to the `notifications.delta.chat` service.
The current lack of proper HTTP/2-support in Python leads us
to use multiple threads and connections to the Rust-implemented `notifications.delta.chat`
which itself uses HTTP/2 and thus only a single connection to phone-notification providers.
If a token fails to cause a successful notification
it is moved to a retry-number specific PriorityQueue
which handles all tokens that failed a particular number of times
and which are scheduled for retry using exponential back-off timing.
If a token notification would be scheduled more than DROP_DEADLINE seconds
after its first attempt, it is dropped with a log error.
Note that tokens are completely opaque to the notification machinery here
and will in the future be encrypted foreclosing all ability to distinguish
which device token ultimately goes to which phone-provider notification service,
or to understand the relation of "device tokens" and chatmail addresses.
The meaning and format of tokens is basically a matter of Delta-Chat Core and
the `notification.delta.chat` service.
"""
import logging
import math
import os
import time
from dataclasses import dataclass
from pathlib import Path
from queue import PriorityQueue
from threading import Thread
from uuid import uuid4
import requests
@dataclass
class PersistentQueueItem:
path: Path
addr: str
start_ts: int
token: str
def delete(self):
self.path.unlink(missing_ok=True)
@classmethod
def create(cls, queue_dir, addr, start_ts, token):
queue_id = uuid4().hex
start_ts = int(start_ts)
path = queue_dir.joinpath(queue_id)
tmp_path = path.with_name(path.name + ".tmp")
tmp_path.write_text(f"{addr}\n{start_ts}\n{token}")
os.rename(tmp_path, path)
return cls(path, addr, start_ts, token)
@classmethod
def read_from_path(cls, path):
addr, start_ts, token = path.read_text().split("\n", maxsplit=2)
return cls(path, addr, int(start_ts), token)
def __lt__(self, other):
return self.start_ts < other.start_ts
class Notifier:
URL = "https://notifications.delta.chat/notify"
CONNECTION_TIMEOUT = 60.0 # seconds until http-request is given up
BASE_DELAY = 8.0 # base seconds for exponential back-off delay
DROP_DEADLINE = 5 * 60 * 60 # drop notifications after 5 hours
def __init__(self, queue_dir):
self.queue_dir = queue_dir
max_tries = int(math.log(self.DROP_DEADLINE, self.BASE_DELAY)) + 1
self.retry_queues = [PriorityQueue() for _ in range(max_tries)]
def compute_delay(self, retry_num):
return 0 if retry_num == 0 else pow(self.BASE_DELAY, retry_num)
def new_message_for_addr(self, addr, metadata):
start_ts = int(time.time())
for token in metadata.get_tokens_for_addr(addr):
queue_item = PersistentQueueItem.create(
self.queue_dir, addr, start_ts, token
)
self.queue_for_retry(queue_item)
def requeue_persistent_queue_items(self):
for queue_path in self.queue_dir.iterdir():
if queue_path.name.endswith(".tmp"):
logging.warning(f"removing spurious queue item: {queue_path!r}")
queue_path.unlink()
continue
queue_item = PersistentQueueItem.read_from_path(queue_path)
self.queue_for_retry(queue_item)
def queue_for_retry(self, queue_item, retry_num=0):
delay = self.compute_delay(retry_num)
when = int(time.time()) + delay
deadline = queue_item.start_ts + self.DROP_DEADLINE
if retry_num >= len(self.retry_queues) or when > deadline:
queue_item.delete()
logging.error(f"notification exceeded deadline: {queue_item.token!r}")
return
self.retry_queues[retry_num].put((when, queue_item))
def start_notification_threads(self, remove_token_from_addr):
self.requeue_persistent_queue_items()
threads = {}
for retry_num in range(len(self.retry_queues)):
# use 4 threads for first-try tokens and less for subsequent tries
num_threads = 4 if retry_num == 0 else 2
threads[retry_num] = []
for _ in range(num_threads):
thread = NotifyThread(self, retry_num, remove_token_from_addr)
threads[retry_num].append(thread)
thread.start()
return threads
class NotifyThread(Thread):
def __init__(self, notifier, retry_num, remove_token_from_addr):
super().__init__(daemon=True)
self.notifier = notifier
self.retry_num = retry_num
self.remove_token_from_addr = remove_token_from_addr
def stop(self):
self.notifier.retry_queues[self.retry_num].put((None, None))
def run(self):
requests_session = requests.Session()
while self.retry_one(requests_session):
pass
def retry_one(self, requests_session, sleep=time.sleep):
when, queue_item = self.notifier.retry_queues[self.retry_num].get()
if when is None:
return False
wait_time = when - int(time.time())
if wait_time > 0:
sleep(wait_time)
self.perform_request_to_notification_server(requests_session, queue_item)
return True
def perform_request_to_notification_server(self, requests_session, queue_item):
timeout = self.notifier.CONNECTION_TIMEOUT
token = queue_item.token
try:
res = requests_session.post(self.notifier.URL, data=token, timeout=timeout)
except requests.exceptions.RequestException as e:
res = e
else:
if res.status_code in (200, 410):
if res.status_code == 410:
self.remove_token_from_addr(queue_item.addr, token)
queue_item.delete()
return
logging.warning(f"Notification request failed: {res!r}")
self.notifier.queue_for_retry(queue_item, retry_num=self.retry_num + 1)

View File

@@ -0,0 +1,53 @@
import os
import pytest
import chatmaild.dictproxy
from .dictproxy import get_user_data, lookup_passdb
from .database import Database, DBError
@pytest.fixture()
def db(tmpdir):
db_path = tmpdir / "passdb.sqlite"
print("database path:", db_path)
return Database(db_path)
def test_basic(db):
chatmaild.dictproxy.NOCREATE_FILE = "/tmp/nocreate"
if os.path.exists(chatmaild.dictproxy.NOCREATE_FILE):
os.remove(chatmaild.dictproxy.NOCREATE_FILE)
lookup_passdb(db, "link2xt@c1.testrun.org", "asdf")
data = get_user_data(db, "link2xt@c1.testrun.org")
assert data
def test_dont_overwrite_password_on_wrong_login(db):
"""Test that logging in with a different password doesn't create a new user"""
res = lookup_passdb(db, "newuser1@something.org", "kajdlkajsldk12l3kj1983")
assert res["password"]
res2 = lookup_passdb(db, "newuser1@something.org", "kajdlqweqwe")
# this function always returns a password hash, which is actually compared by dovecot.
assert res["password"] == res2["password"]
def test_nocreate_file(db):
chatmaild.dictproxy.NOCREATE_FILE = "/tmp/nocreate"
with open(chatmaild.dictproxy.NOCREATE_FILE, "w+") as f:
f.write("")
assert os.path.exists(chatmaild.dictproxy.NOCREATE_FILE)
lookup_passdb(db, "newuser1@something.org", "kajdlqweqwe")
assert not get_user_data(db, "newuser1@something.org")
os.remove(chatmaild.dictproxy.NOCREATE_FILE)
def test_db_version(db):
assert db.get_schema_version() == 1
def test_too_high_db_version(db):
with db.write_transaction() as conn:
conn.execute("PRAGMA user_version=%s;" % (999,))
with pytest.raises(DBError):
db.ensure_tables()

View File

@@ -0,0 +1,290 @@
from .filtermail import check_encrypted
from email.parser import BytesParser
from email import policy
def test_filtermail():
def check_encrypted_bstr(content):
message = BytesParser(policy=policy.default).parsebytes(content)
return check_encrypted(message)
assert not check_encrypted_bstr(b"foo")
assert not check_encrypted_bstr(
"\r\n".join(
[
"Subject: =?utf-8?q?Message_from_foobar=40c2=2Etestrun=2Eorg?=",
"Chat-Disposition-Notification-To: foobar@c2.testrun.org",
"Chat-User-Avatar: 0",
"From: <foobar@c2.testrun.org>",
"To: <barbaz@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:41:44 +0000",
"Message-ID: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"Chat-Version: 1.0",
"Autocrypt: addr=foobar@c2.testrun.org; prefer-encrypt=mutual;",
"\tkeydata=xjMEZSrw3hYJKwYBBAHaRw8BAQdAiEKNQFU28c6qsx4vo/JHdt73RXdjMOmByf/XsGiJ7m",
"\tnNFzxmb29iYXJAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUq8N4CGwMECwkIBwYVCAkKCwID",
"\tFgIBFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJCX3gEAhm0MehE5byBBU1avPczr/I",
"\tHjNLht7Qf6++mAhlJmtDcA/0C8VYJhsUpmiDjuZaMDWNv4FO2BJG6LH7gSm6n7ClMJzjgEZSrw3hIK",
"\tKwYBBAGXVQEFAQEHQAxGG/QW0owCfMp1A+vXEMwgzWcBpNFr58kX2eXuPpM6AwEIB8J4BBgWCAAgBQ",
"\tJlKvDeAhsMFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJDg1gEAwLf8KDoAAKyYgjyI",
"\tvYvO9VEgBni1C4Xx1VjcaEmlDK8BALoFuUCK+enw76TtDcAUKhlhUiM6SDRExkS4Nskp/BcK",
"MIME-Version: 1.0",
"Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no",
"",
"Hi!",
"",
"",
]
).encode()
)
assert not check_encrypted_bstr(
"\r\n".join(
[
"Subject: =?utf-8?q?Message_from_foobar=40c2=2Etestrun=2Eorg?=",
"Chat-Disposition-Notification-To: foobar@c2.testrun.org",
"Chat-User-Avatar: 0",
"From: <foobar@c2.testrun.org>",
"To: <barbaz@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:41:44 +0000",
"Message-ID: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"Chat-Version: 1.0",
"Autocrypt: addr=foobar@c2.testrun.org; prefer-encrypt=mutual;",
"\tkeydata=xjMEZSrw3hYJKwYBBAHaRw8BAQdAiEKNQFU28c6qsx4vo/JHdt73RXdjMOmByf/XsGiJ7m",
"\tnNFzxmb29iYXJAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUq8N4CGwMECwkIBwYVCAkKCwID",
"\tFgIBFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJCX3gEAhm0MehE5byBBU1avPczr/I",
"\tHjNLht7Qf6++mAhlJmtDcA/0C8VYJhsUpmiDjuZaMDWNv4FO2BJG6LH7gSm6n7ClMJzjgEZSrw3hIK",
"\tKwYBBAGXVQEFAQEHQAxGG/QW0owCfMp1A+vXEMwgzWcBpNFr58kX2eXuPpM6AwEIB8J4BBgWCAAgBQ",
"\tJlKvDeAhsMFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJDg1gEAwLf8KDoAAKyYgjyI",
"\tvYvO9VEgBni1C4Xx1VjcaEmlDK8BALoFuUCK+enw76TtDcAUKhlhUiM6SDRExkS4Nskp/BcK",
"MIME-Version: 1.0",
"Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no",
"",
"Hi!",
"",
"",
]
).encode()
)
# https://xkcd.com/1181/
assert not check_encrypted_bstr(
"\r\n".join(
[
"Subject: =?utf-8?q?Message_from_foobar=40c2=2Etestrun=2Eorg?=",
"Chat-Disposition-Notification-To: foobar@c2.testrun.org",
"Chat-User-Avatar: 0",
"From: <foobar@c2.testrun.org>",
"To: <barbaz@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:41:44 +0000",
"Message-ID: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"Chat-Version: 1.0",
"Autocrypt: addr=foobar@c2.testrun.org; prefer-encrypt=mutual;",
"\tkeydata=xjMEZSrw3hYJKwYBBAHaRw8BAQdAiEKNQFU28c6qsx4vo/JHdt73RXdjMOmByf/XsGiJ7m",
"\tnNFzxmb29iYXJAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUq8N4CGwMECwkIBwYVCAkKCwID",
"\tFgIBFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJCX3gEAhm0MehE5byBBU1avPczr/I",
"\tHjNLht7Qf6++mAhlJmtDcA/0C8VYJhsUpmiDjuZaMDWNv4FO2BJG6LH7gSm6n7ClMJzjgEZSrw3hIK",
"\tKwYBBAGXVQEFAQEHQAxGG/QW0owCfMp1A+vXEMwgzWcBpNFr58kX2eXuPpM6AwEIB8J4BBgWCAAgBQ",
"\tJlKvDeAhsMFiEEGil0OvTIa6RngmCLUYNnEa9leJAACgkQUYNnEa9leJDg1gEAwLf8KDoAAKyYgjyI",
"\tvYvO9VEgBni1C4Xx1VjcaEmlDK8BALoFuUCK+enw76TtDcAUKhlhUiM6SDRExkS4Nskp/BcK",
"MIME-Version: 1.0",
"Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no",
"",
"-----BEGIN PGP MESSAGE-----",
"Hi!",
"-----END PGP MESSAGE-----",
"",
"",
]
).encode()
)
assert check_encrypted_bstr(
"\r\n".join(
[
"Subject: ...",
"From: <barbaz@c2.testrun.org>",
"To: <foobar@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:43:21 +0000",
"Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>",
"In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
"References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"\t<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
"Chat-Version: 1.0",
"Autocrypt: addr=barbaz@c2.testrun.org; prefer-encrypt=mutual;",
"\tkeydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH",
"\trNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID",
"\tFgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW",
"\tXQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK",
"\tKwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ",
"\tJlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP",
"\tIXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO",
"MIME-Version: 1.0",
'Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";',
'\tboundary="YFrteb74qSXmggbOxZL9dRnhymywAi"',
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi",
"Content-Description: PGP/MIME version identification",
"Content-Type: application/pgp-encrypted",
"",
"Version: 1",
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi",
"Content-Description: OpenPGP encrypted message",
'Content-Disposition: inline; filename="encrypted.asc";',
'Content-Type: application/octet-stream; name="encrypted.asc"',
"",
"-----BEGIN PGP MESSAGE-----",
"",
"wU4DhW3gBZ/VvCYSAQdA8bMs2spwbKdGjVsL1ByPkNrqD7frpB73maeL6I6SzDYg",
"O5G53tv339RdKq3WRcCtEEvxjHlUx2XNwXzC04BpmfvBTgNfPUyLDzjXnxIBB0Ae",
"8ymwGvXMCCimHXN0Dg8Ui62KOi03h0UgheoHWovJSCDF4CKre/xtFr3nL7lq/PKI",
"JsjVNz7/RK9FSXF6WwfONtLCyQGEuVAsB/KXfCBEyfKhaMwGHvhujRidGW5uV1no",
"lMGl3ODmo29Lgeu2uSE7EpJRZoe6hU6ddmBkqxax61ZtkaFlGFFpdo2K8balNNdz",
"ZsJ/9mmI9x3oOJ4/l1nhQbUO9ADbs7gJhFdV5Qkp30b5fCI7bU+aoe1ccBbLe/WM",
"YUty1PqcuQT7XjA+XmYuL261tvW8pBetT+i33/E2d8PzzYt2IuK9qeevyS+yxdwA",
"kfwejFWzzsUlJaDxs1x4XOxkMgSj+jo+g12dFOb7fyClsAnq23iDb8AuaT/BScAI",
"+lO+gher69+6LmM7VGHLG5k762J1jTaQCaKt1s8TAWV99Eo4491vL6fyvk3l/Cfg",
"RXSwiWFgj19Pn0Rq7CD9v22UE2vdUMBTcV4aw79mClk1YQ23jbF0y5DCjPdJ62Zo",
"tskBgFt3NoWV80jZ76zIBLrrjLwCCll8JjJtFwSkt2GX5RFBsVa4A8IDht9RtEk7",
"rrHgbSZQfkauEi/mH3/6CDZoLqSHudUZ7d4MaJwun1TkFYGe2ORwGJd4OBj3oGJp",
"H8YBwCpk///L/fKjX0Gg3M8nrpM4wrRFhPKidAgO/kcm25X4+ZHlVkWBTCt5RWKI",
"fHh6oLDZCqCfcgMkE1KKmwfIHaUkhq5BPRigwy6i5dh1DM4+1UCLh3dxzVbqE9b9",
"61NB19nXdRtDA2sOUnj9ve6m/wEPyCb6/zBQZqvCBYb1/AjdXpUrFT+DbpfyxaXN",
"XfhDVb5mNqNM/IVj0V5fvTc6vOfYbzQtPm10H+FdWWfb+rJRfyC3MA2w2IqstFe3",
"w3bu2iE6CQvSqRvge+ZqLKt/NqYwOURiUmpuklbl3kPJ97+mfKWoiqk8Iz1VY+bb",
"NMUC7aoGv+jcoj+WS6PYO8N6BeRVUUB3ZJSf8nzjgxm1/BcM+UD3BPrlhT11ODRs",
"baifGbprMWwt3dhb8cQgRT8GPdpO1OsDkzL6iikMjLHWWiA99GV6ruiHsIPw6boW",
"A6/uSOskbDHOROotKmddGTBd0iiHXAoQsJFt1ZjUkt6EHrgWs+GAvrvKpXs1mrz8",
"uj3GwEFrHS+Xuf2UDgpszYT3hI2cL/kUtGakVR7m7vVMZqXBUbZdGAEb1PZNPwsI",
"E4aMK02+EVB+tSN4Fzj99N2YD0inVYt+oPjr2tHhUS6aSGBNS/48Ki47DOg4Sxkn",
"lkOWnEbCD+XTnbDd",
"=agR5",
"-----END PGP MESSAGE-----",
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi--",
"",
"",
]
).encode()
)
assert not check_encrypted_bstr(
"\r\n".join(
[
"Subject: Buy Penis Enlargement at www.malicious-domain.com",
"From: <barbaz@c2.testrun.org>",
"To: <foobar@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:43:21 +0000",
"Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>",
"In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
"References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
"\t<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
"Chat-Version: 1.0",
"Autocrypt: addr=barbaz@c2.testrun.org; prefer-encrypt=mutual;",
"\tkeydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH",
"\trNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID",
"\tFgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW",
"\tXQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK",
"\tKwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ",
"\tJlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP",
"\tIXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO",
"MIME-Version: 1.0",
'Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";',
'\tboundary="YFrteb74qSXmggbOxZL9dRnhymywAi"',
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi",
"Content-Description: PGP/MIME version identification",
"Content-Type: application/pgp-encrypted",
"",
"Version: 1",
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi",
"Content-Description: OpenPGP encrypted message",
'Content-Disposition: inline; filename="encrypted.asc";',
'Content-Type: application/octet-stream; name="encrypted.asc"',
"",
"-----BEGIN PGP MESSAGE-----",
"",
"wU4DhW3gBZ/VvCYSAQdA8bMs2spwbKdGjVsL1ByPkNrqD7frpB73maeL6I6SzDYg",
"O5G53tv339RdKq3WRcCtEEvxjHlUx2XNwXzC04BpmfvBTgNfPUyLDzjXnxIBB0Ae",
"8ymwGvXMCCimHXN0Dg8Ui62KOi03h0UgheoHWovJSCDF4CKre/xtFr3nL7lq/PKI",
"JsjVNz7/RK9FSXF6WwfONtLCyQGEuVAsB/KXfCBEyfKhaMwGHvhujRidGW5uV1no",
"lMGl3ODmo29Lgeu2uSE7EpJRZoe6hU6ddmBkqxax61ZtkaFlGFFpdo2K8balNNdz",
"ZsJ/9mmI9x3oOJ4/l1nhQbUO9ADbs7gJhFdV5Qkp30b5fCI7bU+aoe1ccBbLe/WM",
"YUty1PqcuQT7XjA+XmYuL261tvW8pBetT+i33/E2d8PzzYt2IuK9qeevyS+yxdwA",
"kfwejFWzzsUlJaDxs1x4XOxkMgSj+jo+g12dFOb7fyClsAnq23iDb8AuaT/BScAI",
"+lO+gher69+6LmM7VGHLG5k762J1jTaQCaKt1s8TAWV99Eo4491vL6fyvk3l/Cfg",
"RXSwiWFgj19Pn0Rq7CD9v22UE2vdUMBTcV4aw79mClk1YQ23jbF0y5DCjPdJ62Zo",
"tskBgFt3NoWV80jZ76zIBLrrjLwCCll8JjJtFwSkt2GX5RFBsVa4A8IDht9RtEk7",
"rrHgbSZQfkauEi/mH3/6CDZoLqSHudUZ7d4MaJwun1TkFYGe2ORwGJd4OBj3oGJp",
"H8YBwCpk///L/fKjX0Gg3M8nrpM4wrRFhPKidAgO/kcm25X4+ZHlVkWBTCt5RWKI",
"fHh6oLDZCqCfcgMkE1KKmwfIHaUkhq5BPRigwy6i5dh1DM4+1UCLh3dxzVbqE9b9",
"61NB19nXdRtDA2sOUnj9ve6m/wEPyCb6/zBQZqvCBYb1/AjdXpUrFT+DbpfyxaXN",
"XfhDVb5mNqNM/IVj0V5fvTc6vOfYbzQtPm10H+FdWWfb+rJRfyC3MA2w2IqstFe3",
"w3bu2iE6CQvSqRvge+ZqLKt/NqYwOURiUmpuklbl3kPJ97+mfKWoiqk8Iz1VY+bb",
"NMUC7aoGv+jcoj+WS6PYO8N6BeRVUUB3ZJSf8nzjgxm1/BcM+UD3BPrlhT11ODRs",
"baifGbprMWwt3dhb8cQgRT8GPdpO1OsDkzL6iikMjLHWWiA99GV6ruiHsIPw6boW",
"A6/uSOskbDHOROotKmddGTBd0iiHXAoQsJFt1ZjUkt6EHrgWs+GAvrvKpXs1mrz8",
"uj3GwEFrHS+Xuf2UDgpszYT3hI2cL/kUtGakVR7m7vVMZqXBUbZdGAEb1PZNPwsI",
"E4aMK02+EVB+tSN4Fzj99N2YD0inVYt+oPjr2tHhUS6aSGBNS/48Ki47DOg4Sxkn",
"lkOWnEbCD+XTnbDd",
"=agR5",
"-----END PGP MESSAGE-----",
"",
"",
"--YFrteb74qSXmggbOxZL9dRnhymywAi--",
"",
"",
]
).encode()
)
assert not check_encrypted_bstr(
"\r\n".join(
[
"Subject: Message opened",
"From: <barbaz@c2.testrun.org>",
"To: <foobar@c2.testrun.org>",
"Date: Sun, 15 Oct 2023 16:43:25 +0000",
"Message-ID: <Mr.78MWtlV7RAi.goCFzBhCYfy@c2.testrun.org>",
"Auto-Submitted: auto-replied",
"Chat-Version: 1.0",
"MIME-Version: 1.0",
"Content-Type: multipart/report; report-type=disposition-notification;",
'\tboundary="Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi"',
"",
"",
"--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi",
"Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no",
"",
'The "Hi!" message you sent was displayed on the screen of the recipient.',
"",
"This is no guarantee the content was read.",
"",
"",
"--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi",
"Content-Type: message/disposition-notification",
"",
"Reporting-UA: Delta Chat 1.124.1",
"Original-Recipient: rfc822;barbaz@c2.testrun.org",
"Final-Recipient: rfc822;barbaz@c2.testrun.org",
"Original-Message-ID: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
"Disposition: manual-action/MDN-sent-automatically; displayed",
"",
"",
"--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi--",
"",
"",
]
).encode()
)

View File

@@ -1,66 +0,0 @@
From: {from_addr}
To: {to_addr}
Subject: {subject}
Date: Sun, 15 Oct 2023 16:43:21 +0000
Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>
In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>
References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>
Chat-Version: 1.0
Autocrypt: addr={from_addr}; prefer-encrypt=mutual;
keydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH
rNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID
FgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW
XQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK
KwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ
JlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP
IXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO
MIME-Version: 1.0
Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";
boundary="YFrteb74qSXmggbOxZL9dRnhymywAi"
--YFrteb74qSXmggbOxZL9dRnhymywAi
Content-Description: PGP/MIME version identification
Content-Type: application/pgp-encrypted
Version: 1
--YFrteb74qSXmggbOxZL9dRnhymywAi
Content-Description: OpenPGP encrypted message
Content-Disposition: inline; filename="encrypted.asc";
Content-Type: application/octet-stream; name="encrypted.asc"
-----BEGIN PGP MESSAGE-----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@@ -1,25 +0,0 @@
Subject: =?utf-8?q?Message_from_foobar=40c2=2Etestrun=2Eorg?=
Chat-Disposition-Notification-To: foobar@c2.testrun.org
Chat-User-Avatar: 0
From: <{from_addr}>
To: <{to_addr}>
Date: Sun, 15 Oct 2023 16:41:44 +0000
Message-ID: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
Chat-Version: 1.0
Autocrypt: addr={from_addr}; prefer-encrypt=mutual;
keydata=xjMEZSrw3hYJKwYBBAHaRw8BAQdAiEKNQFU28c6qsx4vo/JHdt73RXdjMOmByf/XsGiJ7m
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vYvO9VEgBni1C4Xx1VjcaEmlDK8BALoFuUCK+enw76TtDcAUKhlhUiM6SDRExkS4Nskp/BcK
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
-----BEGIN PGP MESSAGE-----
Hi!
-----END PGP MESSAGE-----

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@@ -1,44 +0,0 @@
From: {from_addr}
To: {to_addr}
Subject: ...
Date: Sun, 15 Oct 2023 16:43:21 +0000
Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>
In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>
References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>
Chat-Version: 1.0
Autocrypt: addr={from_addr}; prefer-encrypt=mutual;
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MIME-Version: 1.0
Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";
boundary="YFrteb74qSXmggbOxZL9dRnhymywAi"
--YFrteb74qSXmggbOxZL9dRnhymywAi
Content-Description: PGP/MIME version identification
Content-Type: application/pgp-encrypted
Version: 1
--YFrteb74qSXmggbOxZL9dRnhymywAi
Content-Description: OpenPGP encrypted message
Content-Disposition: inline; filename="encrypted.asc";
Content-Type: application/octet-stream; name="encrypted.asc"
-----BEGIN PGP MESSAGE-----
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--YFrteb74qSXmggbOxZL9dRnhymywAi--

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@@ -1,33 +0,0 @@
Subject: Message opened
From: <{from_addr}>
To: <{to_addr}>
Date: Sun, 15 Oct 2023 16:43:25 +0000
Message-ID: <Mr.78MWtlV7RAi.goCFzBhCYfy@c2.testrun.org>
Auto-Submitted: auto-replied
Chat-Version: 1.0
MIME-Version: 1.0
Content-Type: multipart/report; report-type=disposition-notification;
boundary="Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi"
--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
The "Hi!" message you sent was displayed on the screen of the recipient.
This is no guarantee the content was read.
--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi
Content-Type: message/disposition-notification
Reporting-UA: Delta Chat 1.124.1
Original-Recipient: rfc822;barbaz@c2.testrun.org
Final-Recipient: rfc822;barbaz@c2.testrun.org
Original-Message-ID: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>
Disposition: manual-action/MDN-sent-automatically; displayed
--Gl92xgZjOShJ5PGHntqYkoo2OK2Dvi--

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@@ -1,23 +0,0 @@
Subject: =?utf-8?q?Message_from_foobar=40c2=2Etestrun=2Eorg?=
Chat-Disposition-Notification-To: foobar@c2.testrun.org
Chat-User-Avatar: 0
From: <{from_addr}>
To: <{to_addr}>
Date: Sun, 15 Oct 2023 16:41:44 +0000
Message-ID: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>
Chat-Version: 1.0
Autocrypt: addr={from_addr}; prefer-encrypt=mutual;
keydata=xjMEZSrw3hYJKwYBBAHaRw8BAQdAiEKNQFU28c6qsx4vo/JHdt73RXdjMOmByf/XsGiJ7m
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vYvO9VEgBni1C4Xx1VjcaEmlDK8BALoFuUCK+enw76TtDcAUKhlhUiM6SDRExkS4Nskp/BcK
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
Hi!

View File

@@ -1,98 +0,0 @@
import importlib.resources
import itertools
import os
import random
from email import policy
from email.parser import BytesParser
from pathlib import Path
import pytest
from chatmaild.config import read_config, write_initial_config
@pytest.fixture
def make_config(tmp_path):
inipath = tmp_path.joinpath("chatmail.ini")
def make_conf(mail_domain, settings=None):
basedir = tmp_path.joinpath(f"vmail/{mail_domain}")
basedir.mkdir(parents=True, exist_ok=True)
overrides = settings.copy() if settings else {}
overrides["mailboxes_dir"] = str(basedir)
write_initial_config(inipath, mail_domain, overrides=overrides)
return read_config(inipath)
return make_conf
@pytest.fixture
def example_config(make_config):
return make_config("chat.example.org")
@pytest.fixture
def maildomain(example_config):
return example_config.mail_domain
@pytest.fixture
def testaddr(maildomain):
return f"user.name@{maildomain}"
@pytest.fixture
def gencreds(maildomain):
count = itertools.count()
next(count)
def gen(domain=None):
domain = domain if domain else maildomain
while 1:
num = next(count)
alphanumeric = "abcdefghijklmnopqrstuvwxyz1234567890"
user = "".join(random.choices(alphanumeric, k=10))
user = f"ac{num}_{user}"[:9]
password = "".join(random.choices(alphanumeric, k=12))
yield f"{user}@{domain}", f"{password}"
return lambda domain=None: next(gen(domain))
@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")
assert datadir.exists(), datadir
def maildata(name, from_addr, to_addr, subject="..."):
# Using `.read_bytes().decode()` instead of `.read_text()` to preserve newlines.
data = datadir.joinpath(name).read_bytes().decode()
text = data.format(from_addr=from_addr, to_addr=to_addr, subject=subject)
return BytesParser(policy=policy.default).parsebytes(text.encode())
return maildata
@pytest.fixture
def mockout():
class MockOut:
captured_red = []
captured_green = []
captured_plain = []
def red(self, msg):
self.captured_red.append(msg)
def green(self, msg):
self.captured_green.append(msg)
def __call__(self, msg):
self.captured_plain.append(msg)
return MockOut()

View File

@@ -1,66 +0,0 @@
import pytest
from chatmaild.config import read_config
def test_read_config_basic(example_config):
assert example_config.mail_domain == "chat.example.org"
assert not example_config.privacy_supervisor and not example_config.privacy_mail
assert not example_config.privacy_pdo and not example_config.privacy_postal
inipath = example_config._inipath
inipath.write_text(inipath.read_text().replace("60", "37"))
example_config = read_config(inipath)
assert example_config.max_user_send_per_minute == 37
assert example_config.mail_domain == "chat.example.org"
def test_read_config_testrun(make_config):
config = make_config("something.testrun.org")
assert config.mail_domain == "something.testrun.org"
assert len(config.privacy_postal.split("\n")) > 1
assert len(config.privacy_supervisor.split("\n")) > 1
assert len(config.privacy_pdo.split("\n")) > 1
assert config.privacy_mail == "privacy@testrun.org"
assert config.filtermail_smtp_port == 10080
assert config.postfix_reinject_port == 10025
assert config.max_user_send_per_minute == 60
assert config.max_mailbox_size == "100M"
assert config.delete_mails_after == "20"
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_senders == []
def test_config_userstate_paths(make_config, tmp_path):
config = make_config("something.testrun.org")
mailboxes_dir = config.mailboxes_dir
passdb_path = config.passdb_path
assert mailboxes_dir.name == "something.testrun.org"
assert str(passdb_path) == "/home/vmail/passdb.sqlite"
assert config.mail_domain == "something.testrun.org"
path = config.get_user("user1@something.testrun.org").maildir
assert not path.exists()
assert path == mailboxes_dir.joinpath("user1@something.testrun.org")
with pytest.raises(ValueError):
config.get_user("")
with pytest.raises(ValueError):
config.get_user(None)
with pytest.raises(ValueError):
config.get_user("../some@something.testrun.org").maildir
with pytest.raises(ValueError):
config.get_user("..").maildir
with pytest.raises(ValueError):
config.get_user(".")
def test_config_max_message_size(make_config, tmp_path):
config = make_config("something.testrun.org", dict(max_message_size="10000"))
assert config.max_message_size == 10000

View File

@@ -1,59 +0,0 @@
import time
from chatmaild.delete_inactive_users import delete_inactive_users
from chatmaild.doveauth import AuthDictProxy
def test_login_timestamps(example_config):
testaddr = "someuser@chat.example.org"
user = example_config.get_user(testaddr)
# password file needs to be set because it's mtime tracks last-login time
user.set_password("1l2k3j1l2k3j123")
for i in range(10):
user.set_last_login_timestamp(86400 * 4 + i)
assert user.get_last_login_timestamp() == 86400 * 4
def test_delete_inactive_users(example_config):
new = time.time()
old = new - (example_config.delete_inactive_users_after * 86400) - 1
dictproxy = AuthDictProxy(example_config)
def create_user(addr, last_login):
dictproxy.lookup_passdb(addr, "q9mr3faue")
user = example_config.get_user(addr)
user.maildir.joinpath("cur").mkdir()
user.maildir.joinpath("cur", "something").mkdir()
user.set_last_login_timestamp(timestamp=last_login)
# create some stale and some new accounts
to_remove = []
for i in range(150):
addr = f"oldold{i:03}@chat.example.org"
create_user(addr, last_login=old)
to_remove.append(addr)
remain = []
for i in range(5):
addr = f"newnew{i:03}@chat.example.org"
create_user(addr, last_login=new)
remain.append(addr)
# check pre and post-conditions for delete_inactive_users()
for addr in to_remove:
assert example_config.get_user(addr).maildir.exists()
delete_inactive_users(example_config)
for p in example_config.mailboxes_dir.iterdir():
assert not p.name.startswith("old")
for addr in to_remove:
assert not example_config.get_user(addr).maildir.exists()
for addr in remain:
userdir = example_config.get_user(addr).maildir
assert userdir.exists()
assert userdir.joinpath("password").read_text()

View File

@@ -1,150 +0,0 @@
import io
import json
import queue
import threading
import traceback
import pytest
import chatmaild.doveauth
from chatmaild.doveauth import (
AuthDictProxy,
is_allowed_to_create,
)
from chatmaild.newemail import create_newemail_dict
@pytest.fixture
def dictproxy(example_config):
return AuthDictProxy(config=example_config)
def test_basic(dictproxy, gencreds):
addr, password = gencreds()
dictproxy.lookup_passdb(addr, password)
data = dictproxy.lookup_userdb(addr)
assert data
data2 = dictproxy.lookup_passdb(addr, password)
assert data == data2
def test_iterate_addresses(dictproxy):
addresses = []
for i in range(10):
addresses.append(f"asdf1234{i}@chat.example.org")
dictproxy.lookup_passdb(addresses[-1], "q9mr3faue")
res = dictproxy.iter_userdb()
assert set(res) == set(addresses)
def test_invalid_username_length(example_config):
config = example_config
config.username_min_length = 6
config.username_max_length = 10
password = create_newemail_dict(config)["password"]
assert not is_allowed_to_create(config, f"a1234@{config.mail_domain}", password)
assert is_allowed_to_create(config, f"012345@{config.mail_domain}", password)
assert is_allowed_to_create(config, f"0123456@{config.mail_domain}", password)
assert is_allowed_to_create(config, f"0123456789@{config.mail_domain}", password)
assert not is_allowed_to_create(
config, f"0123456789x@{config.mail_domain}", password
)
def test_dont_overwrite_password_on_wrong_login(dictproxy):
"""Test that logging in with a different password doesn't create a new user"""
res = dictproxy.lookup_passdb(
"newuser12@chat.example.org", "kajdlkajsldk12l3kj1983"
)
assert res["password"]
res2 = dictproxy.lookup_passdb("newuser12@chat.example.org", "kajdslqwe")
# this function always returns a password hash, which is actually compared by dovecot.
assert res["password"] == res2["password"]
def test_nocreate_file(monkeypatch, tmpdir, dictproxy):
p = tmpdir.join("nocreate")
p.write("")
monkeypatch.setattr(chatmaild.doveauth, "NOCREATE_FILE", str(p))
dictproxy.lookup_passdb("newuser12@chat.example.org", "zequ0Aimuchoodaechik")
assert not dictproxy.lookup_userdb("newuser12@chat.example.org")
def test_handle_dovecot_request(dictproxy):
transactions = {}
# Test that password can contain ", ', \ and /
msg = (
'Lshared/passdb/laksjdlaksjdlak\\\\sjdlk\\"12j\\\'3l1/k2j3123"'
"some42123@chat.example.org\tsome42123@chat.example.org"
)
res = dictproxy.handle_dovecot_request(msg, transactions)
assert res
assert res[0] == "O" and res.endswith("\n")
userdata = json.loads(res[1:].strip())
assert userdata["home"].endswith("chat.example.org/some42123@chat.example.org")
assert userdata["uid"] == userdata["gid"] == "vmail"
assert userdata["password"].startswith("{SHA512-CRYPT}")
def test_handle_dovecot_protocol_hello_is_skipped(example_config, caplog):
dictproxy = AuthDictProxy(config=example_config)
rfile = io.BytesIO(b"H3\t2\t0\t\tauth\n")
wfile = io.BytesIO()
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b""
assert not caplog.messages
def test_handle_dovecot_protocol_user_not_exists(example_config):
dictproxy = AuthDictProxy(config=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()
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b"N\n"
def test_handle_dovecot_protocol_iterate(gencreds, example_config):
dictproxy = AuthDictProxy(config=example_config)
dictproxy.lookup_passdb("asdf00000@chat.example.org", "q9mr3faue")
dictproxy.lookup_passdb("asdf11111@chat.example.org", "q9mr3faue")
rfile = io.BytesIO(b"H3\t2\t0\t\tauth\nI0\t0\tshared/userdb/")
wfile = io.BytesIO()
dictproxy.loop_forever(rfile, wfile)
lines = wfile.getvalue().decode("ascii").split("\n")
assert "Oshared/userdb/asdf00000@chat.example.org\t" in lines
assert "Oshared/userdb/asdf11111@chat.example.org\t" in lines
assert not lines[2]
def test_50_concurrent_lookups_different_accounts(gencreds, dictproxy):
num_threads = 50
req_per_thread = 5
results = queue.Queue()
def lookup():
for i in range(req_per_thread):
addr, password = gencreds()
try:
dictproxy.lookup_passdb(addr, password)
except Exception:
results.put(traceback.format_exc())
else:
results.put(None)
threads = []
for i in range(num_threads):
thread = threading.Thread(target=lookup, daemon=True)
threads.append(thread)
print(f"created {num_threads} threads, starting them and waiting for results")
for thread in threads:
thread.start()
for i in range(num_threads * req_per_thread):
res = results.get()
if res is not None:
pytest.fail(f"concurrent lookup failed\n{res}")

View File

@@ -1,39 +0,0 @@
import threading
from chatmaild.filedict import FileDict, write_bytes_atomic
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
def test_write_bytes_atomic_concurrent(tmp_path):
p = tmp_path.joinpath("somefile.ext")
write_bytes_atomic(p, b"hello")
threads = []
for i in range(30):
content = f"hello{i}".encode("ascii")
t = threading.Thread(target=lambda: write_bytes_atomic(p, content))
t.start()
threads.append(t)
for t in threads:
t.join()
assert p.read_text().strip() != "hello"
assert len(list(p.parent.iterdir())) == 1

View File

@@ -1,217 +0,0 @@
import pytest
from chatmaild.filtermail import (
BeforeQueueHandler,
SendRateLimiter,
check_armored_payload,
check_encrypted,
common_encrypted_subjects,
)
@pytest.fixture
def maildomain():
# let's not depend on a real chatmail instance for the offline tests below
return "chatmail.example.org"
@pytest.fixture
def handler(make_config, maildomain):
config = make_config(maildomain)
return BeforeQueueHandler(config)
def test_reject_forged_from(maildata, gencreds, handler):
class env:
mail_from = gencreds()[0]
rcpt_tos = [gencreds()[0]]
# test that the filter lets good mail through
to_addr = gencreds()[0]
env.content = maildata(
"plain.eml", from_addr=env.mail_from, to_addr=to_addr
).as_bytes()
assert not handler.check_DATA(envelope=env)
# test that the filter rejects forged mail
env.content = maildata(
"plain.eml", from_addr="forged@c3.testrun.org", to_addr=to_addr
).as_bytes()
error = handler.check_DATA(envelope=env)
assert "500" in error
def test_filtermail_no_encryption_detection(maildata):
msg = maildata(
"plain.eml", from_addr="some@example.org", to_addr="other@example.org"
)
assert not check_encrypted(msg)
# https://xkcd.com/1181/
msg = maildata(
"fake-encrypted.eml", from_addr="some@example.org", to_addr="other@example.org"
)
assert not check_encrypted(msg)
def test_filtermail_encryption_detection(maildata):
for subject in common_encrypted_subjects:
msg = maildata(
"encrypted.eml",
from_addr="1@example.org",
to_addr="2@example.org",
subject=subject,
)
assert check_encrypted(msg)
# if the subject is not a known encrypted subject value, it is not considered ac-encrypted
msg.replace_header("Subject", "Click this link")
assert not check_encrypted(msg)
def test_filtermail_no_literal_packets(maildata):
"""Test that literal OpenPGP packet is not considered an encrypted mail."""
msg = maildata("literal.eml", from_addr="1@example.org", to_addr="2@example.org")
assert not check_encrypted(msg)
def test_filtermail_unencrypted_mdn(maildata, gencreds):
"""Unencrypted MDNs should not pass."""
from_addr = gencreds()[0]
to_addr = gencreds()[0] + ".other"
msg = maildata("mdn.eml", from_addr=from_addr, to_addr=to_addr)
assert not check_encrypted(msg)
def test_send_rate_limiter():
limiter = SendRateLimiter()
for i in range(100):
if limiter.is_sending_allowed("some@example.org", 10):
if i <= 10:
continue
pytest.fail("limiter didn't work")
else:
assert i == 11
break
def test_excempt_privacy(maildata, gencreds, handler):
from_addr = gencreds()[0]
to_addr = "privacy@testrun.org"
handler.config.passthrough_recipients = [to_addr]
false_to = "privacy@something.org"
msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
class env:
mail_from = from_addr
rcpt_tos = [to_addr]
content = msg.as_bytes()
# assert that None/no error is returned
assert not handler.check_DATA(envelope=env)
class env2:
mail_from = from_addr
rcpt_tos = [to_addr, false_to]
content = msg.as_bytes()
assert "500" in handler.check_DATA(envelope=env2)
def test_passthrough_domains(maildata, gencreds, handler):
from_addr = gencreds()[0]
to_addr = "privacy@x.y.z"
handler.config.passthrough_recipients = ["@x.y.z"]
false_to = "something@x.y"
msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
class env:
mail_from = from_addr
rcpt_tos = [to_addr]
content = msg.as_bytes()
# assert that None/no error is returned
assert not handler.check_DATA(envelope=env)
class env2:
mail_from = from_addr
rcpt_tos = [to_addr, false_to]
content = msg.as_bytes()
assert "500" in handler.check_DATA(envelope=env2)
def test_passthrough_senders(gencreds, handler, maildata):
acc1 = gencreds()[0]
to_addr = "recipient@something.org"
handler.config.passthrough_senders = [acc1]
msg = maildata("plain.eml", from_addr=acc1, to_addr=to_addr)
class env:
mail_from = acc1
rcpt_tos = to_addr
content = msg.as_bytes()
# assert that None/no error is returned
assert not handler.check_DATA(envelope=env)
def test_check_armored_payload():
payload = """-----BEGIN PGP MESSAGE-----\r
\r
wU4DSqFx0d1yqAoSAQdAYkX/ZN/Az4B0k7X47zKyWrXxlDEdS3WOy0Yf2+GJTFgg\r
Zk5ql0mLG8Ze+ZifCS0XMO4otlemSyJ0K1ZPdFMGzUDBTgNqzkFabxXoXRIBB0AM\r
755wlX41X6Ay3KhnwBq7yEqSykVH6F3x11iHPKraLCAGZoaS8bKKNy/zg5slda1X\r
pt14b4aC1VwtSnYhcRRELNLD/wE2TFif+g7poMmFY50VyMPLYjVP96Z5QCT4+z4H\r
Ikh/pRRN8S3JNMrRJHc6prooSJmLcx47Y5un7VFy390MsJ+LiUJuQMDdYWRAinfs\r
Ebm89Ezjm7F03qbFPXE0X4ZNzVXS/eKO0uhJQdiov/vmbn41rNtHmNpqjaO0vi5+\r
sS9tR7yDUrIXiCUCN78eBLVioxtktsPZm5cDORbQWzv+7nmCEz9/JowCUcBVdCGn\r
1ofOaH82JCAX/cRx08pLaDNj6iolVBsi56Dd+2bGxJOZOG2AMcEyz0pXY0dOAJCD\r
iUThcQeGIdRnU3j8UBcnIEsjLu2+C+rrwMZQESMWKnJ0rnqTk0pK5kXScr6F/L0L\r
UE49ccIexNm3xZvYr5drszr6wz3Tv5fdue87P4etBt90gF/Vzknck+g1LLlkzZkp\r
d8dI0k2tOSPjUbDPnSy1x+X73WGpPZmj0kWT+RGvq0nH6UkJj3AQTG2qf1T8jK+3\r
rTp3LR9vDkMwDjX4R8SA9c0wdnUzzr79OYQC9lTnzcx+fM6BBmgQ2GrS33jaFLp7\r
L6/DFpCl5zhnPjM/2dKvMkw/Kd6XS/vjwsO405FQdjSDiQEEAZA+ZvAfcjdccbbU\r
yCO+x0QNdeBsufDVnh3xvzuWy4CICdTQT4s1AWRPCzjOj+SGmx5WqCLWfsd8Ma0+\r
w/C7SfTYu1FDQILLM+llpq1M/9GPley4QZ8JQjo262AyPXsPF/OW48uuZz0Db1xT\r
Yh4iHBztj4VSdy7l2+IyaIf7cnL4EEBFxv/MwmVDXvDlxyvfAfIsd3D9SvJESzKZ\r
VWDYwaocgeCN+ojKu1p885lu1EfRbX3fr3YO02K5/c2JYDkc0Py0W3wUP/J1XUax\r
pbKpzwlkxEgtmzsGqsOfMJqBV3TNDrOA2uBsa+uBqP5MGYLZ49S/4v/bW9I01Cr1\r
D2ZkV510Y1Vgo66WlP8mRqOTyt/5WRhPD+MxXdk67BNN/PmO6tMlVoJDuk+XwWPR\r
t2TvNaND/yabT9eYI55Og4fzKD6RIjouUX8DvKLkm+7aXxVs2uuLQ3Jco3O82z55\r
dbShU1jYsrw9oouXUz06MHPbkdhNbF/2hfhZ2qA31sNeovJw65iUv7sDKX3LVWgJ\r
10jlywcDwqlU8CO7WC9lGixYTbnOkYZpXCGEl8e6Jbs79l42YFo4ogYpFK1NXFhV\r
kOXRmDf/wmfj+c/ld3L2PkvwlgofhCudOQknZbo3ub1gjiTn7L+lMGHIj/3suMIl\r
ID4EUxAXScIM1ZEz2fjtW5jATlqYcLjLTbf/olw6HFyPNH+9IssqXeZNKnGwPUB9\r
3lTXsg0tpzl+x7F/2WjEw1DSNhjC0KnHt1vEYNMkUGDGFdN9y3ERLqX/FIgiASUb\r
bTvAVupnAK3raBezGmhrs6LsQtLS9P0VvQiLU3uDhMqw8Z4SISLpcD+NnVBHzQqm\r
6W5Qn/8xsCL6av18yUVTi2G3igt3QCNoYx9evt2ZcIkNoyyagUVjfZe5GHXh8Dnz\r
GaBXW/hg3HlXLRGaQu4RYCzBMJILcO25OhZOg6jbkCLiEexQlm2e9krB5cXR49Al\r
UN4fiB0KR9JyG2ayUdNJVkXZSZLnHyRgiaadlpUo16LVvw==\r
=b5Kp\r
-----END PGP MESSAGE-----\r
\r
"""
assert check_armored_payload(payload) == True
payload = """-----BEGIN PGP MESSAGE-----\r
\r
HELLOWORLD
-----END PGP MESSAGE-----\r
\r
"""
assert check_armored_payload(payload) == False
payload = """-----BEGIN PGP MESSAGE-----\r
\r
=njUN
-----END PGP MESSAGE-----\r
\r
"""
assert check_armored_payload(payload) == False

View File

@@ -1,64 +0,0 @@
import time
from chatmaild.doveauth import AuthDictProxy
from chatmaild.lastlogin import (
LastLoginDictProxy,
)
def test_handle_dovecot_request_last_login(testaddr, example_config):
dictproxy = LastLoginDictProxy(config=example_config)
authproxy = AuthDictProxy(config=example_config)
authproxy.lookup_passdb(testaddr, "1l2k3j1l2k3jl123")
dictproxy_transactions = {}
# Begin transaction
tx = "1111"
msg = f"B{tx}\t{testaddr}"
res = dictproxy.handle_dovecot_request(msg, dictproxy_transactions)
assert not res
assert dictproxy_transactions == {tx: dict(addr=testaddr, res="O\n")}
# set last-login info for user
user = dictproxy.config.get_user(testaddr)
timestamp = int(time.time())
msg = f"S{tx}\tshared/last-login/{testaddr}\t{timestamp}"
res = dictproxy.handle_dovecot_request(msg, dictproxy_transactions)
assert not res
assert len(dictproxy_transactions) == 1
read_timestamp = user.get_last_login_timestamp()
assert read_timestamp == timestamp // 86400 * 86400
# finish transaction
msg = f"C{tx}"
res = dictproxy.handle_dovecot_request(msg, dictproxy_transactions)
assert res == "O\n"
assert len(dictproxy_transactions) == 0
def test_handle_dovecot_request_last_login_echobot(example_config):
dictproxy = LastLoginDictProxy(config=example_config)
authproxy = AuthDictProxy(config=example_config)
testaddr = f"echo@{example_config.mail_domain}"
authproxy.lookup_passdb(testaddr, "ignore")
user = dictproxy.config.get_user(testaddr)
transactions = {}
# set last-login info for user
tx = "1111"
msg = f"B{tx}\t{testaddr}"
res = dictproxy.handle_dovecot_request(msg, transactions)
assert not res
assert transactions == {tx: dict(addr=testaddr, res="O\n")}
timestamp = int(time.time())
msg = f"S{tx}\tshared/last-login/{testaddr}\t{timestamp}"
res = dictproxy.handle_dovecot_request(msg, transactions)
assert not res
assert len(transactions) == 1
read_timestamp = user.get_last_login_timestamp()
assert read_timestamp is None

View File

@@ -1,313 +0,0 @@
import io
import time
import pytest
import requests
from chatmaild.metadata import (
Metadata,
MetadataDictProxy,
)
from chatmaild.notifier import (
Notifier,
NotifyThread,
PersistentQueueItem,
)
@pytest.fixture
def notifier(metadata):
queue_dir = metadata.vmail_dir.joinpath("pending_notifications")
queue_dir.mkdir()
return Notifier(queue_dir)
@pytest.fixture
def metadata(tmp_path):
vmail_dir = tmp_path.joinpath("vmaildir")
vmail_dir.mkdir()
return Metadata(vmail_dir)
@pytest.fixture
def dictproxy(notifier, metadata):
return MetadataDictProxy(notifier=notifier, metadata=metadata)
@pytest.fixture
def testaddr2():
return "user2@example.org"
@pytest.fixture
def token():
return "01234"
def get_mocked_requests(statuslist):
class ReqMock:
requests = []
def post(self, url, data, timeout):
self.requests.append((url, data, timeout))
res = statuslist.pop(0)
if isinstance(res, Exception):
raise res
class Result:
status_code = res
return Result()
return ReqMock()
def test_metadata_persistence(tmp_path, testaddr, testaddr2):
metadata1 = Metadata(tmp_path)
metadata2 = Metadata(tmp_path)
assert not metadata1.get_tokens_for_addr(testaddr)
assert not metadata2.get_tokens_for_addr(testaddr)
metadata1.add_token_to_addr(testaddr, "01234")
metadata1.add_token_to_addr(testaddr2, "456")
assert metadata2.get_tokens_for_addr(testaddr) == ["01234"]
assert metadata2.get_tokens_for_addr(testaddr2) == ["456"]
metadata2.remove_token_from_addr(testaddr, "01234")
assert not metadata1.get_tokens_for_addr(testaddr)
assert metadata1.get_tokens_for_addr(testaddr2) == ["456"]
def test_remove_nonexisting(metadata, tmp_path, testaddr):
metadata.add_token_to_addr(testaddr, "123")
metadata.remove_token_from_addr(testaddr, "1l23k1l2k3")
assert metadata.get_tokens_for_addr(testaddr) == ["123"]
def test_notifier_remove_without_set(metadata, testaddr):
metadata.remove_token_from_addr(testaddr, "123")
assert not metadata.get_tokens_for_addr(testaddr)
def test_handle_dovecot_request_lookup_fails(dictproxy, testaddr):
transactions = {}
res = dictproxy.handle_dovecot_request(
f"Lpriv/123/chatmail\t{testaddr}", transactions
)
assert res == "N\n"
def test_handle_dovecot_request_happy_path(dictproxy, testaddr, token):
metadata = dictproxy.metadata
transactions = {}
notifier = dictproxy.notifier
# set device token in a transaction
tx = "1111"
msg = f"B{tx}\t{testaddr}"
res = dictproxy.handle_dovecot_request(msg, transactions)
assert not res and not metadata.get_tokens_for_addr(testaddr)
assert transactions == {tx: dict(addr=testaddr, res="O\n")}
msg = f"S{tx}\tpriv/guid00/devicetoken\t{token}"
res = dictproxy.handle_dovecot_request(msg, transactions)
assert not res
assert len(transactions) == 1
assert metadata.get_tokens_for_addr(testaddr) == [token]
msg = f"C{tx}"
res = dictproxy.handle_dovecot_request(msg, transactions)
assert res == "O\n"
assert len(transactions) == 0
assert metadata.get_tokens_for_addr(testaddr) == [token]
# trigger notification for incoming message
tx2 = "2222"
assert dictproxy.handle_dovecot_request(f"B{tx2}\t{testaddr}", transactions) is None
msg = f"S{tx2}\tpriv/guid00/messagenew"
assert dictproxy.handle_dovecot_request(msg, transactions) is None
queue_item = notifier.retry_queues[0].get()[1]
assert queue_item.token == token
assert dictproxy.handle_dovecot_request(f"C{tx2}", transactions) == "O\n"
assert not transactions
assert queue_item.path.exists()
def test_handle_dovecot_protocol_set_devicetoken(dictproxy):
rfile = io.BytesIO(
b"\n".join(
[
b"HELLO",
b"Btx00\tuser@example.org",
b"Stx00\tpriv/guid00/devicetoken\t01234",
b"Ctx00",
]
)
)
wfile = io.BytesIO()
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b"O\n"
assert dictproxy.metadata.get_tokens_for_addr("user@example.org") == ["01234"]
def test_handle_dovecot_protocol_set_get_devicetoken(dictproxy):
rfile = io.BytesIO(
b"\n".join(
[
b"HELLO",
b"Btx00\tuser@example.org",
b"Stx00\tpriv/guid00/devicetoken\t01234",
b"Ctx00",
]
)
)
wfile = io.BytesIO()
dictproxy.loop_forever(rfile, wfile)
assert dictproxy.metadata.get_tokens_for_addr("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()
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b"O01234\n"
def test_handle_dovecot_protocol_iterate(dictproxy):
rfile = io.BytesIO(
b"\n".join(
[
b"H",
b"I9\t0\tpriv/5cbe730f146fea6535be0d003dd4fc98/\tci-2dzsrs@nine.testrun.org",
]
)
)
wfile = io.BytesIO()
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b"\n"
def test_notifier_thread_deletes_persistent_file(metadata, notifier, testaddr):
reqmock = get_mocked_requests([200])
metadata.add_token_to_addr(testaddr, "01234")
notifier.new_message_for_addr(testaddr, metadata)
NotifyThread(notifier, 0, None).retry_one(reqmock)
url, data, timeout = reqmock.requests[0]
assert data == "01234"
assert metadata.get_tokens_for_addr(testaddr) == ["01234"]
notifier.requeue_persistent_queue_items()
assert notifier.retry_queues[0].qsize() == 0
@pytest.mark.parametrize("status", [requests.exceptions.RequestException(), 404, 500])
def test_notifier_thread_connection_failures(
metadata, notifier, testaddr, status, caplog
):
"""test that tokens keep getting retried until they are given up."""
metadata.add_token_to_addr(testaddr, "01234")
notifier.new_message_for_addr(testaddr, metadata)
notifier.NOTIFICATION_RETRY_DELAY = 5
max_tries = len(notifier.retry_queues)
for i in range(max_tries):
caplog.clear()
reqmock = get_mocked_requests([status])
sleep_calls = []
NotifyThread(notifier, i, None).retry_one(reqmock, sleep=sleep_calls.append)
assert notifier.retry_queues[i].qsize() == 0
assert "request failed" in caplog.records[0].msg
if i > 0:
assert len(sleep_calls) == 1
if i + 1 < max_tries:
assert notifier.retry_queues[i + 1].qsize() == 1
assert len(caplog.records) == 1
else:
assert len(caplog.records) == 2
assert "deadline" in caplog.records[1].msg
notifier.requeue_persistent_queue_items()
assert notifier.retry_queues[0].qsize() == 0
def test_requeue_removes_tmp_files(notifier, metadata, testaddr, caplog):
metadata.add_token_to_addr(testaddr, "01234")
notifier.new_message_for_addr(testaddr, metadata)
p = notifier.queue_dir.joinpath("1203981203.tmp")
p.touch()
notifier2 = notifier.__class__(notifier.queue_dir)
notifier2.requeue_persistent_queue_items()
assert "spurious" in caplog.records[0].msg
assert not p.exists()
assert notifier2.retry_queues[0].qsize() == 1
when, queue_item = notifier2.retry_queues[0].get()
assert when <= int(time.time())
assert queue_item.addr == testaddr
def test_start_and_stop_notification_threads(notifier, testaddr):
threads = notifier.start_notification_threads(None)
for retry_num, threadlist in threads.items():
for t in threadlist:
t.stop()
t.join()
def test_multi_device_notifier(metadata, notifier, testaddr):
metadata.add_token_to_addr(testaddr, "01234")
metadata.add_token_to_addr(testaddr, "56789")
notifier.new_message_for_addr(testaddr, metadata)
reqmock = get_mocked_requests([200, 200])
NotifyThread(notifier, 0, None).retry_one(reqmock)
NotifyThread(notifier, 0, None).retry_one(reqmock)
assert notifier.retry_queues[0].qsize() == 0
assert notifier.retry_queues[1].qsize() == 0
url, data, timeout = reqmock.requests[0]
assert data == "01234"
url, data, timeout = reqmock.requests[1]
assert data == "56789"
assert metadata.get_tokens_for_addr(testaddr) == ["01234", "56789"]
def test_notifier_thread_run_gone_removes_token(metadata, notifier, testaddr):
metadata.add_token_to_addr(testaddr, "01234")
metadata.add_token_to_addr(testaddr, "45678")
notifier.new_message_for_addr(testaddr, metadata)
reqmock = get_mocked_requests([410, 200])
NotifyThread(notifier, 0, metadata.remove_token_from_addr).retry_one(reqmock)
NotifyThread(notifier, 0, None).retry_one(reqmock)
url, data, timeout = reqmock.requests[0]
assert data == "01234"
url, data, timeout = reqmock.requests[1]
assert data == "45678"
assert metadata.get_tokens_for_addr(testaddr) == ["45678"]
assert notifier.retry_queues[0].qsize() == 0
assert notifier.retry_queues[1].qsize() == 0
def test_persistent_queue_items(tmp_path, testaddr, token):
queue_item = PersistentQueueItem.create(tmp_path, testaddr, 432, token)
assert queue_item.addr == testaddr
assert queue_item.start_ts == 432
assert queue_item.token == token
item2 = PersistentQueueItem.read_from_path(queue_item.path)
assert item2.addr == testaddr
assert item2.start_ts == 432
assert item2.token == token
assert item2 == queue_item
item2.delete()
assert not item2.path.exists()
assert not queue_item < item2 and not item2 < queue_item
def test_iroh_relay(dictproxy):
rfile = io.BytesIO(
b"\n".join(
[
b"H",
b"Lshared/0123/vendor/vendor.dovecot/pvt/server/vendor/deltachat/irohrelay\tuser@example.org",
]
)
)
wfile = io.BytesIO()
dictproxy.iroh_relay = "https://example.org/"
dictproxy.loop_forever(rfile, wfile)
assert wfile.getvalue() == b"Ohttps://example.org/\n"

View File

@@ -1,17 +0,0 @@
from chatmaild.metrics import main
def test_main(tmp_path, capsys):
for x in ("ci-asllkj", "ac_12l3kj", "qweqwe", "ci-l1k2j31l2k3"):
tmp_path.joinpath(x).mkdir()
main(tmp_path)
out, _ = capsys.readouterr()
d = {}
for line in out.split("\n"):
if line.strip() and not line.startswith("#"):
name, num = line.split()
d[name] = int(num)
assert d["accounts"] == 4
assert d["ci_accounts"] == 3
assert d["nonci_accounts"] == 1

View File

@@ -1,67 +0,0 @@
import sqlite3
from chatmaild.migrate_db import migrate_from_db_to_maildir
def test_migration_not_exists(tmp_path, example_config):
example_config.passdb_path = tmp_path.joinpath("sqlite")
def test_migration(tmp_path, example_config, caplog):
passdb_path = tmp_path.joinpath("passdb.sqlite")
uri = f"file:{passdb_path}?mode=rwc"
sqlconn = sqlite3.connect(uri, timeout=60, uri=True)
sqlconn.execute(
"""
CREATE TABLE users (
addr TEXT PRIMARY KEY,
password TEXT,
last_login INTEGER
)
"""
)
all = {}
for i in range(500):
values = (f"somsom{i:03}@example.org", f"passwo{i:03}", i * 86400)
sqlconn.execute(
"""
INSERT INTO users (addr, password, last_login)
VALUES (?, ?, ?)""",
values,
)
all[values[0]] = values[1:]
for i in range(500):
values = (f"pompom{i:03}@example.org", f"wopass{i:03}", "")
sqlconn.execute(
"""
INSERT INTO users (addr, password, last_login)
VALUES (?, ?, ?)""",
values,
)
all[values[0]] = values[1:]
sqlconn.commit()
sqlconn.close()
assert passdb_path.stat().st_size > 10000
example_config.passdb_path = passdb_path
assert not caplog.records
migrate_from_db_to_maildir(example_config, chunking=500)
assert len(caplog.records) > 3
for path in example_config.mailboxes_dir.iterdir():
if "@" not in path.name:
continue
password, last_login = all.pop(path.name)
user = example_config.get_user(path.name)
if last_login:
assert user.get_last_login_timestamp() == last_login
assert password == user.get_userdb_dict()["password"]
assert not all
assert not example_config.passdb_path.exists()

View File

@@ -1,27 +0,0 @@
import json
import chatmaild
from chatmaild.newemail import create_newemail_dict, print_new_account
def test_create_newemail_dict(example_config):
ac1 = create_newemail_dict(example_config)
assert "@" in ac1["email"]
assert len(ac1["password"]) >= 10
ac2 = create_newemail_dict(example_config)
assert ac1["email"] != ac2["email"]
assert ac1["password"] != ac2["password"]
def test_print_new_account(capsys, monkeypatch, maildomain, tmpdir, example_config):
monkeypatch.setattr(chatmaild.newemail, "CONFIG_PATH", str(example_config._inipath))
print_new_account()
out, err = capsys.readouterr()
lines = out.split("\n")
assert lines[0] == "Content-Type: application/json"
assert not lines[1]
dic = json.loads(lines[2])
assert dic["email"].endswith(f"@{example_config.mail_domain}")
assert len(dic["password"]) >= 10

View File

@@ -1,42 +0,0 @@
def test_login_timestamp(testaddr, example_config):
user = example_config.get_user(testaddr)
user.set_password("someeqkjwelkqwjleqwe")
user.set_last_login_timestamp(100000)
assert user.get_last_login_timestamp() == 86400
user.set_last_login_timestamp(200000)
assert user.get_last_login_timestamp() == 86400 * 2
def test_get_user_dict_not_set(testaddr, example_config, caplog):
user = example_config.get_user(testaddr)
assert not caplog.records
assert user.get_userdb_dict() == {}
assert len(caplog.records) == 0
user.set_password("")
assert user.get_userdb_dict() == {}
assert len(caplog.records) == 1
def test_get_user_dict(make_config, tmp_path):
config = make_config("something.testrun.org")
addr = "user1@something.org"
user = config.get_user(addr)
enc_password = "l1k2j31lk2j3l1k23j123"
user.set_password(enc_password)
data = user.get_userdb_dict()
assert addr in str(data["home"])
assert data["uid"] == "vmail"
assert data["gid"] == "vmail"
assert data["password"] == enc_password
def test_no_mailboxes_dir(testaddr, example_config, tmp_path):
p = tmp_path.joinpath("a", "mailboxes")
example_config.mailboxes_dir = p
user = example_config.get_user(testaddr)
user.set_password("someeqkjwelkqwjleqwe")
user.set_last_login_timestamp(100000)
assert user.get_last_login_timestamp() == 86400

View File

@@ -1,74 +0,0 @@
import logging
import os
from chatmaild.filedict import write_bytes_atomic
def get_daytimestamp(timestamp) -> int:
return int(timestamp) // 86400 * 86400
class User:
def __init__(self, maildir, addr, password_path, uid, gid):
self.maildir = maildir
self.addr = addr
self.password_path = password_path
self.uid = uid
self.gid = gid
@property
def can_track(self):
return "@" in self.addr and not self.addr.startswith("echo@")
def get_userdb_dict(self):
"""Return a non-empty dovecot 'userdb' style dict
if the user has an existing non-empty password"""
try:
pw = self.password_path.read_text()
except FileNotFoundError:
return {}
if not pw:
logging.error(f"password is empty for: {self.addr}")
return {}
home = str(self.maildir)
return dict(addr=self.addr, home=home, uid=self.uid, gid=self.gid, password=pw)
def set_password(self, enc_password):
"""Set the specified password for this user.
This method can be called concurrently
but there is no guarantee which of the password-set calls will win.
"""
self.maildir.mkdir(exist_ok=True, parents=True)
password = enc_password.encode("ascii")
try:
write_bytes_atomic(self.password_path, password)
except PermissionError:
if not self.addr.startswith("echo@"):
logging.error(f"could not write password for: {self.addr}")
raise
def set_last_login_timestamp(self, timestamp):
"""Track login time with daily granularity
to minimize touching files and to minimize metadata leakage."""
if not self.can_track:
return
try:
mtime = int(os.stat(self.password_path).st_mtime)
except FileNotFoundError:
logging.error(f"Can not get last login timestamp for {self.addr}")
return
timestamp = get_daytimestamp(timestamp)
if mtime != timestamp:
os.utime(self.password_path, (timestamp, timestamp))
def get_last_login_timestamp(self):
if self.can_track:
try:
return int(self.password_path.stat().st_mtime)
except FileNotFoundError:
pass

View File

@@ -1,43 +0,0 @@
[build-system]
requires = ["setuptools>=68"]
build-backend = "setuptools.build_meta"
[project]
name = "cmdeploy"
version = "0.2"
dependencies = [
"pyinfra>=3",
"pillow",
"qrcode",
"markdown",
"pytest",
"setuptools>=68",
"termcolor",
"build",
"tox",
"ruff",
"pytest",
"pytest-xdist",
"execnet",
"imap_tools",
]
[project.scripts]
cmdeploy = "cmdeploy.cmdeploy:main"
[project.entry-points.pytest11]
"chatmaild.testplugin" = "chatmaild.tests.plugin"
"cmdeploy.testplugin" = "cmdeploy.tests.plugin"
[tool.pytest.ini_options]
addopts = "-v -ra --strict-markers"
[tool.ruff]
lint.select = [
"F", # Pyflakes
"I", # isort
"PLC", # Pylint Convention
"PLE", # Pylint Error
"PLW", # Pylint Warning
]

View File

@@ -1,739 +0,0 @@
"""
Chat Mail pyinfra deploy.
"""
import importlib.resources
import io
import shutil
import subprocess
import sys
from pathlib import Path
from chatmaild.config import Config, read_config
from pyinfra import host, facts
from pyinfra.facts.files import File
from pyinfra.facts.systemd import SystemdEnabled
from pyinfra.operations import apt, files, pip, server, systemd
from .acmetool import deploy_acmetool
def _build_chatmaild(dist_dir) -> None:
dist_dir = Path(dist_dir).resolve()
if dist_dir.exists():
shutil.rmtree(dist_dir)
dist_dir.mkdir()
subprocess.check_output(
[sys.executable, "-m", "build", "-n"]
+ ["--sdist", "chatmaild", "--outdir", str(dist_dir)]
)
entries = list(dist_dir.iterdir())
assert len(entries) == 1
return entries[0]
def remove_legacy_artifacts():
# disable legacy doveauth-dictproxy.service
if host.get_fact(SystemdEnabled).get("doveauth-dictproxy.service"):
systemd.service(
name="Disable legacy doveauth-dictproxy.service",
service="doveauth-dictproxy.service",
running=False,
enabled=False,
)
def _install_remote_venv_with_chatmaild(config) -> None:
remove_legacy_artifacts()
dist_file = _build_chatmaild(dist_dir=Path("chatmaild/dist"))
remote_base_dir = "/usr/local/lib/chatmaild"
remote_dist_file = f"{remote_base_dir}/dist/{dist_file.name}"
remote_venv_dir = f"{remote_base_dir}/venv"
remote_chatmail_inipath = f"{remote_base_dir}/chatmail.ini"
root_owned = dict(user="root", group="root", mode="644")
apt.packages(
name="apt install python3-virtualenv",
packages=["python3-virtualenv"],
)
files.put(
name="Upload chatmaild source package",
src=dist_file.open("rb"),
dest=remote_dist_file,
create_remote_dir=True,
**root_owned,
)
files.put(
name=f"Upload {remote_chatmail_inipath}",
src=config._getbytefile(),
dest=remote_chatmail_inipath,
**root_owned,
)
pip.virtualenv(
name=f"chatmaild virtualenv {remote_venv_dir}",
path=remote_venv_dir,
always_copy=True,
)
server.shell(
name=f"forced pip-install {dist_file.name}",
commands=[
f"{remote_venv_dir}/bin/pip install --force-reinstall {remote_dist_file}"
],
)
files.template(
src=importlib.resources.files(__package__).joinpath("metrics.cron.j2"),
dest="/etc/cron.d/chatmail-metrics",
user="root",
group="root",
mode="644",
config={
"mailboxes_dir": config.mailboxes_dir,
"execpath": f"{remote_venv_dir}/bin/chatmail-metrics",
},
)
# install systemd units
for fn in (
"doveauth",
"filtermail",
"echobot",
"chatmail-metadata",
"lastlogin",
):
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"
)
content = source_path.read_text().format(**params).encode()
files.put(
name=f"Upload {fn}.service",
src=io.BytesIO(content),
dest=f"/etc/systemd/system/{fn}.service",
**root_owned,
)
systemd.service(
name=f"Setup {fn} service",
service=f"{fn}.service",
running=True,
enabled=True,
restarted=True,
daemon_reload=True,
)
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
config = files.put(
name="upload postfix-mta-sts-resolver config",
src=importlib.resources.files(__package__).joinpath(
"postfix/mta-sts-daemon.yml"
),
dest="/etc/mta-sts-daemon.yml",
user="root",
group="root",
mode="644",
)
need_restart |= config.changed
server.shell(
name="install postfix-mta-sts-resolver with pip",
commands=[
"python3 -m virtualenv /usr/local/lib/postfix-mta-sts-resolver",
"/usr/local/lib/postfix-mta-sts-resolver/bin/pip install postfix-mta-sts-resolver",
],
)
systemd_unit = files.put(
name="upload mta-sts-daemon systemd unit",
src=importlib.resources.files(__package__).joinpath(
"postfix/mta-sts-daemon.service"
),
dest="/etc/systemd/system/mta-sts-daemon.service",
user="root",
group="root",
mode="644",
)
need_restart |= systemd_unit.changed
return need_restart
def _configure_postfix(config: Config, debug: bool = False) -> bool:
"""Configures Postfix SMTP server."""
need_restart = False
main_config = files.template(
src=importlib.resources.files(__package__).joinpath("postfix/main.cf.j2"),
dest="/etc/postfix/main.cf",
user="root",
group="root",
mode="644",
config=config,
disable_ipv6=config.disable_ipv6,
)
need_restart |= main_config.changed
master_config = files.template(
src=importlib.resources.files(__package__).joinpath("postfix/master.cf.j2"),
dest="/etc/postfix/master.cf",
user="root",
group="root",
mode="644",
debug=debug,
config=config,
)
need_restart |= master_config.changed
header_cleanup = files.put(
src=importlib.resources.files(__package__).joinpath(
"postfix/submission_header_cleanup"
),
dest="/etc/postfix/submission_header_cleanup",
user="root",
group="root",
mode="644",
)
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
def _configure_dovecot(config: Config, debug: bool = False) -> bool:
"""Configures Dovecot IMAP server."""
need_restart = False
main_config = files.template(
src=importlib.resources.files(__package__).joinpath("dovecot/dovecot.conf.j2"),
dest="/etc/dovecot/dovecot.conf",
user="root",
group="root",
mode="644",
config=config,
debug=debug,
disable_ipv6=config.disable_ipv6,
)
need_restart |= main_config.changed
auth_config = files.put(
src=importlib.resources.files(__package__).joinpath("dovecot/auth.conf"),
dest="/etc/dovecot/auth.conf",
user="root",
group="root",
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
files.template(
src=importlib.resources.files(__package__).joinpath("dovecot/expunge.cron.j2"),
dest="/etc/cron.d/expunge",
user="root",
group="root",
mode="644",
config=config,
)
# as per https://doc.dovecot.org/configuration_manual/os/
# it is recommended to set the following inotify limits
for name in ("max_user_instances", "max_user_watches"):
key = f"fs.inotify.{name}"
server.sysctl(
name=f"Change {key}",
key=key,
value=65535,
persist=True,
)
return need_restart
def _configure_nginx(config: Config, debug: bool = False) -> bool:
"""Configures nginx HTTP server."""
need_restart = False
main_config = files.template(
src=importlib.resources.files(__package__).joinpath("nginx/nginx.conf.j2"),
dest="/etc/nginx/nginx.conf",
user="root",
group="root",
mode="644",
config={"domain_name": config.mail_domain},
disable_ipv6=config.disable_ipv6,
)
need_restart |= main_config.changed
autoconfig = files.template(
src=importlib.resources.files(__package__).joinpath("nginx/autoconfig.xml.j2"),
dest="/var/www/html/.well-known/autoconfig/mail/config-v1.1.xml",
user="root",
group="root",
mode="644",
config={"domain_name": config.mail_domain},
)
need_restart |= autoconfig.changed
mta_sts_config = files.template(
src=importlib.resources.files(__package__).joinpath("nginx/mta-sts.txt.j2"),
dest="/var/www/html/.well-known/mta-sts.txt",
user="root",
group="root",
mode="644",
config={"domain_name": config.mail_domain},
)
need_restart |= mta_sts_config.changed
# install CGI newemail script
#
cgi_dir = "/usr/lib/cgi-bin"
files.directory(
name=f"Ensure {cgi_dir} exists",
path=cgi_dir,
user="root",
group="root",
)
files.put(
name="Upload cgi newemail.py script",
src=importlib.resources.files("chatmaild").joinpath("newemail.py").open("rb"),
dest=f"{cgi_dir}/newemail.py",
user="root",
group="root",
mode="755",
)
return need_restart
def _remove_rspamd() -> None:
"""Remove rspamd"""
apt.packages(name="Remove rspamd", packages="rspamd", present=False)
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
):
raise ValueError(
f"please set your own privacy contacts/addresses in {config._inipath}"
)
return config
def deploy_mtail(config):
apt.packages(
name="Install mtail",
packages=["mtail"],
)
# Using our own systemd unit instead of `/usr/lib/systemd/system/mtail.service`.
# This allows to read from journalctl instead of log files.
files.template(
src=importlib.resources.files(__package__).joinpath("mtail/mtail.service.j2"),
dest="/etc/systemd/system/mtail.service",
user="root",
group="root",
mode="644",
address=config.mtail_address or "127.0.0.1",
port=3903,
)
mtail_conf = files.put(
name="Mtail configuration",
src=importlib.resources.files(__package__).joinpath(
"mtail/delivered_mail.mtail"
),
dest="/etc/mtail/delivered_mail.mtail",
user="root",
group="root",
mode="644",
)
systemd.service(
name="Start and enable mtail",
service="mtail.service",
running=bool(config.mtail_address),
enabled=bool(config.mtail_address),
restarted=mtail_conf.changed,
)
def deploy_iroh_relay(config) -> None:
(url, sha256sum) = {
"x86_64": (
"https://github.com/n0-computer/iroh/releases/download/v0.28.1/iroh-relay-v0.28.1-x86_64-unknown-linux-musl.tar.gz",
"2ffacf7c0622c26b67a5895ee8e07388769599f60e5f52a3bd40a3258db89b2c",
),
"aarch64": (
"https://github.com/n0-computer/iroh/releases/download/v0.28.1/iroh-relay-v0.28.1-aarch64-unknown-linux-musl.tar.gz",
"b915037bcc1ff1110cc9fcb5de4a17c00ff576fd2f568cd339b3b2d54c420dc4",
),
}[host.get_fact(facts.server.Arch)]
apt.packages(
name="Install curl",
packages=["curl"],
)
server.shell(
name="Download iroh-relay",
commands=[
f"(echo '{sha256sum} /usr/local/bin/iroh-relay' | sha256sum -c) || (curl -L {url} | gunzip | tar -x -f - ./iroh-relay -O >/usr/local/bin/iroh-relay.new && mv /usr/local/bin/iroh-relay.new /usr/local/bin/iroh-relay)",
"chmod 755 /usr/local/bin/iroh-relay",
],
)
need_restart = False
systemd_unit = files.put(
name="Upload iroh-relay systemd unit",
src=importlib.resources.files(__package__).joinpath("iroh-relay.service"),
dest="/etc/systemd/system/iroh-relay.service",
user="root",
group="root",
mode="644",
)
need_restart |= systemd_unit.changed
iroh_config = files.put(
name=f"Upload iroh-relay config",
src=importlib.resources.files(__package__).joinpath("iroh-relay.toml"),
dest=f"/etc/iroh-relay.toml",
user="root",
group="root",
mode="644",
)
need_restart |= iroh_config.changed
systemd.service(
name="Start and enable iroh-relay",
service="iroh-relay.service",
running=True,
enabled=config.enable_iroh_relay,
restarted=need_restart,
)
def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
"""Deploy a chat-mail instance.
:param config_path: path to chatmail.ini
:param disable_mail: whether to disable postfix & dovecot
"""
config = read_config(config_path)
check_config(config)
mail_domain = config.mail_domain
from .www import build_webpages
server.group(name="Create vmail group", group="vmail", system=True)
server.user(name="Create vmail user", user="vmail", group="vmail", system=True)
server.user(name="Create filtermail user", user="filtermail", 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,
)
server.user(name="Create echobot user", user="echobot", system=True)
server.user(name="Create iroh user", user="iroh", system=True)
# Add our OBS repository for dovecot_no_delay
files.put(
name="Add Deltachat OBS GPG key to apt keyring",
src=importlib.resources.files(__package__).joinpath("obs-home-deltachat.gpg"),
dest="/etc/apt/keyrings/obs-home-deltachat.gpg",
user="root",
group="root",
mode="644",
)
files.line(
name="Add DeltaChat OBS home repository to sources.list",
path="/etc/apt/sources.list",
line="deb [signed-by=/etc/apt/keyrings/obs-home-deltachat.gpg] https://download.opensuse.org/repositories/home:/deltachat/Debian_12/ ./",
escape_regex_characters=True,
ensure_newline=True,
)
apt.update(name="apt update", cache_time=24 * 3600)
apt.upgrade(name="upgrade apt packages", auto_remove=True)
apt.packages(
name="Install rsync",
packages=["rsync"],
)
# Run local DNS resolver `unbound`.
# `resolvconf` takes care of setting up /etc/resolv.conf
# to use 127.0.0.1 as the resolver.
apt.packages(
name="Install unbound",
packages=["unbound", "unbound-anchor", "dnsutils"],
)
server.shell(
name="Generate root keys for validating DNSSEC",
commands=[
"unbound-anchor -a /var/lib/unbound/root.key || true",
"systemctl reset-failed unbound.service",
],
)
systemd.service(
name="Start and enable unbound",
service="unbound.service",
running=True,
enabled=True,
)
deploy_iroh_relay(config)
# Deploy acmetool to have TLS certificates.
tls_domains = [mail_domain, f"mta-sts.{mail_domain}", f"www.{mail_domain}"]
deploy_acmetool(
domains=tls_domains,
)
apt.packages(
# required for setfacl for echobot
name="Install acl",
packages="acl",
)
apt.packages(
name="Install Postfix",
packages="postfix",
)
apt.packages(
name="Install Dovecot",
packages=["dovecot-imapd", "dovecot-lmtpd"],
)
apt.packages(
name="Install nginx",
packages=["nginx", "libnginx-mod-stream"],
)
apt.packages(
name="Install fcgiwrap",
packages=["fcgiwrap"],
)
www_path = importlib.resources.files(__package__).joinpath("../../../www").resolve()
build_dir = www_path.joinpath("build")
src_dir = www_path.joinpath("src")
build_webpages(src_dir, build_dir, config)
files.rsync(f"{build_dir}/", "/var/www/html", flags=["-avz"])
_install_remote_venv_with_chatmaild(config)
debug = False
dovecot_need_restart = _configure_dovecot(config, debug=debug)
postfix_need_restart = _configure_postfix(config, debug=debug)
mta_sts_need_restart = _install_mta_sts_daemon()
nginx_need_restart = _configure_nginx(config)
_remove_rspamd()
opendkim_need_restart = _configure_opendkim(mail_domain, "opendkim")
systemd.service(
name="Start and enable OpenDKIM",
service="opendkim.service",
running=True,
enabled=True,
restarted=opendkim_need_restart,
)
systemd.service(
name="Start and enable MTA-STS daemon",
service="mta-sts-daemon.service",
daemon_reload=True,
running=True,
enabled=True,
restarted=mta_sts_need_restart,
)
# Dovecot should be started before Postfix
# because it creates authentication socket
# required by Postfix.
systemd.service(
name="disable dovecot for now" if disable_mail else "Start and enable Dovecot",
service="dovecot.service",
running=False if disable_mail else True,
enabled=False if disable_mail else True,
restarted=dovecot_need_restart if not disable_mail else False,
)
systemd.service(
name="disable postfix for now" if disable_mail else "Start and enable Postfix",
service="postfix.service",
running=False if disable_mail else True,
enabled=False if disable_mail else True,
restarted=postfix_need_restart if not disable_mail else False,
)
systemd.service(
name="Start and enable nginx",
service="nginx.service",
running=True,
enabled=True,
restarted=nginx_need_restart,
)
# This file is used by auth proxy.
# https://wiki.debian.org/EtcMailName
server.shell(
name="Setup /etc/mailname",
commands=[f"echo {mail_domain} >/etc/mailname; chmod 644 /etc/mailname"],
)
journald_conf = files.put(
name="Configure journald",
src=importlib.resources.files(__package__).joinpath("journald.conf"),
dest="/etc/systemd/journald.conf",
user="root",
group="root",
mode="644",
)
systemd.service(
name="Start and enable journald",
service="systemd-journald.service",
running=True,
enabled=True,
restarted=journald_conf.changed,
)
apt.packages(
name="Ensure cron is installed",
packages=["cron"],
)
deploy_mtail(config)

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@@ -1,75 +0,0 @@
import importlib.resources
from pyinfra import host
from pyinfra.facts.systemd import SystemdStatus
from pyinfra.operations import apt, files, server, systemd
def deploy_acmetool(email="", domains=[]):
"""Deploy acmetool."""
apt.packages(
name="Install acmetool",
packages=["acmetool"],
)
files.put(
src=importlib.resources.files(__package__).joinpath("acmetool.cron").open("rb"),
dest="/etc/cron.d/acmetool",
user="root",
group="root",
mode="644",
)
files.put(
src=importlib.resources.files(__package__).joinpath("acmetool.hook").open("rb"),
dest="/usr/lib/acme/hooks/nginx",
user="root",
group="root",
mode="744",
)
files.template(
src=importlib.resources.files(__package__).joinpath("response-file.yaml.j2"),
dest="/var/lib/acme/conf/responses",
user="root",
group="root",
mode="644",
email=email,
)
files.template(
src=importlib.resources.files(__package__).joinpath("target.yaml.j2"),
dest="/var/lib/acme/conf/target",
user="root",
group="root",
mode="644",
)
service_file = files.put(
src=importlib.resources.files(__package__).joinpath(
"acmetool-redirector.service"
),
dest="/etc/systemd/system/acmetool-redirector.service",
user="root",
group="root",
mode="644",
)
if host.get_fact(SystemdStatus).get("nginx.service"):
systemd.service(
name="Stop nginx service to free port 80",
service="nginx",
running=False,
)
systemd.service(
name="Setup acmetool-redirector service",
service="acmetool-redirector.service",
running=True,
enabled=True,
restarted=service_file.changed,
)
server.shell(
name=f"Request certificate for: { ', '.join(domains) }",
commands=[f"acmetool want --xlog.severity=debug { ' '.join(domains)}"],
)

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@@ -1,4 +0,0 @@
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 && systemctl reload nginx

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@@ -1,2 +0,0 @@
"acme-enter-email": "{{ email }}"
"acme-agreement:https://letsencrypt.org/documents/LE-SA-v1.4-April-3-2024.pdf": true

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@@ -1,7 +0,0 @@
request:
provider: https://acme-v02.api.letsencrypt.org/directory
key:
type: rsa
challenge:
webroot-paths:
- /var/www/html/.well-known/acme-challenge

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@@ -1,30 +0,0 @@
;
; Required DNS entries for chatmail servers
;
{% if A %}
{{ mail_domain }}. A {{ A }}
{% endif %}
{% if AAAA %}
{{ mail_domain }}. AAAA {{ AAAA }}
{% endif %}
{{ mail_domain }}. MX 10 {{ mail_domain }}.
_mta-sts.{{ mail_domain }}. TXT "v=STSv1; id={{ sts_id }}"
mta-sts.{{ mail_domain }}. CNAME {{ mail_domain }}.
www.{{ mail_domain }}. CNAME {{ mail_domain }}.
{{ dkim_entry }}
;
; Recommended DNS entries for interoperability and security-hardening
;
{{ mail_domain }}. TXT "v=spf1 a:{{ mail_domain }} ~all"
_dmarc.{{ mail_domain }}. TXT "v=DMARC1;p=reject;adkim=s;aspf=s"
{% if acme_account_url %}
{{ mail_domain }}. CAA 0 issue "letsencrypt.org;accounturi={{ acme_account_url }}"
{% endif %}
_adsp._domainkey.{{ mail_domain }}. TXT "dkim=discardable"
_submission._tcp.{{ mail_domain }}. SRV 0 1 587 {{ mail_domain }}.
_submissions._tcp.{{ mail_domain }}. SRV 0 1 465 {{ mail_domain }}.
_imap._tcp.{{ mail_domain }}. SRV 0 1 143 {{ mail_domain }}.
_imaps._tcp.{{ mail_domain }}. SRV 0 1 993 {{ mail_domain }}.

View File

@@ -1,358 +0,0 @@
"""
Provides the `cmdeploy` entry point function,
along with command line option and subcommand parsing.
"""
import argparse
import importlib.resources
import importlib.util
import os
import pathlib
import shutil
import subprocess
import sys
from pathlib import Path
import pyinfra
from chatmaild.config import read_config, write_initial_config
from packaging import version
from termcolor import colored
from . import dns, remote
from .sshexec import SSHExec
#
# cmdeploy sub commands and options
#
def init_cmd_options(parser):
parser.add_argument(
"chatmail_domain",
action="store",
help="fully qualified DNS domain name for your chatmail instance",
)
def init_cmd(args, out):
"""Initialize chatmail config file."""
mail_domain = args.chatmail_domain
if args.inipath.exists():
print(f"Path exists, not modifying: {args.inipath}")
return 1
else:
write_initial_config(args.inipath, mail_domain, overrides={})
out.green(f"created config file for {mail_domain} in {args.inipath}")
def run_cmd_options(parser):
parser.add_argument(
"--dry-run",
dest="dry_run",
action="store_true",
help="don't actually modify the server",
)
parser.add_argument(
"--disable-mail",
dest="disable_mail",
action="store_true",
help="install/upgrade the server, but disable postfix & dovecot for now"
)
parser.add_argument(
"--ssh-host",
dest="ssh_host",
help="specify an SSH host to deploy to; uses mail_domain from chatmail.ini by default"
)
def run_cmd(args, out):
"""Deploy chatmail services on the remote server."""
sshexec = args.get_sshexec()
require_iroh = args.config.enable_iroh_relay
remote_data = dns.get_initial_remote_data(sshexec, args.config.mail_domain)
if not dns.check_initial_remote_data(remote_data, print=out.red):
return 1
env = os.environ.copy()
env["CHATMAIL_INI"] = args.inipath
env["CHATMAIL_DISABLE_MAIL"] = "True" if args.disable_mail else ""
env["CHATMAIL_REQUIRE_IROH"] = "True" if require_iroh else ""
deploy_path = importlib.resources.files(__package__).joinpath("deploy.py").resolve()
pyinf = "pyinfra --dry" if args.dry_run else "pyinfra"
ssh_host = args.config.mail_domain if not args.ssh_host else args.ssh_host
cmd = f"{pyinf} --ssh-user root {ssh_host} {deploy_path} -y"
if version.parse(pyinfra.__version__) < version.parse("3"):
out.red("Please re-run scripts/initenv.sh to update pyinfra to version 3.")
return 1
retcode = out.check_call(cmd, env=env)
if retcode == 0:
out.green("Deploy completed, call `cmdeploy dns` next.")
elif not remote_data["acme_account_url"]:
out.red("Deploy completed but letsencrypt not configured")
out.red("Run 'cmdeploy run' again")
retcode = 0
else:
out.red("Deploy failed")
return retcode
def dns_cmd_options(parser):
parser.add_argument(
"--zonefile",
dest="zonefile",
type=pathlib.Path,
default=None,
help="write out a zonefile",
)
def dns_cmd(args, out):
"""Check DNS entries and optionally generate dns zone file."""
sshexec = args.get_sshexec()
remote_data = dns.get_initial_remote_data(sshexec, args.config.mail_domain)
if not remote_data:
return 1
if not remote_data["acme_account_url"]:
out.red("could not get letsencrypt account url, please run 'cmdeploy run'")
return 1
if not remote_data["dkim_entry"]:
out.red("could not determine dkim_entry, please run 'cmdeploy run'")
return 1
zonefile = dns.get_filled_zone_file(remote_data)
if args.zonefile:
args.zonefile.write_text(zonefile)
out.green(f"DNS records successfully written to: {args.zonefile}")
return 0
retcode = dns.check_full_zone(
sshexec, remote_data=remote_data, zonefile=zonefile, out=out
)
return retcode
def status_cmd(args, out):
"""Display status for online chatmail instance."""
sshexec = args.get_sshexec()
out.green(f"chatmail domain: {args.config.mail_domain}")
if args.config.privacy_mail:
out.green("privacy settings: present")
else:
out.red("no privacy settings")
for line in sshexec(remote.rshell.get_systemd_running):
print(line)
def test_cmd_options(parser):
parser.add_argument(
"--slow",
dest="slow",
action="store_true",
help="also run slow tests",
)
def test_cmd(args, out):
"""Run local and online tests for chatmail deployment.
This will automatically pip-install 'deltachat' if it's not available.
"""
x = importlib.util.find_spec("deltachat")
if x is None:
out.check_call(f"{sys.executable} -m pip install deltachat")
pytest_path = shutil.which("pytest")
pytest_args = [
pytest_path,
"cmdeploy/src/",
"-n4",
"-rs",
"-x",
"-v",
"--durations=5",
]
if args.slow:
pytest_args.append("--slow")
ret = out.run_ret(pytest_args)
return ret
def fmt_cmd_options(parser):
parser.add_argument(
"--check",
"-c",
action="store_true",
help="only check but don't fix problems",
)
def fmt_cmd(args, out):
"""Run formattting fixes on all chatmail source code."""
sources = [str(importlib.resources.files(x)) for x in ("chatmaild", "cmdeploy")]
format_args = [shutil.which("ruff"), "format"]
check_args = [shutil.which("ruff"), "check"]
if args.check:
format_args.append("--diff")
else:
check_args.append("--fix")
if not args.verbose:
check_args.append("--quiet")
format_args.append("--quiet")
format_args.extend(sources)
check_args.extend(sources)
out.check_call(" ".join(format_args), quiet=not args.verbose)
out.check_call(" ".join(check_args), quiet=not args.verbose)
def bench_cmd(args, out):
"""Run benchmarks against an online chatmail instance."""
args = ["pytest", "--pyargs", "cmdeploy.tests.online.benchmark", "-vrx"]
cmdstring = " ".join(args)
out.green(f"[$ {cmdstring}]")
subprocess.check_call(args)
def webdev_cmd(args, out):
"""Run local web development loop for static web pages."""
from .www import main
main()
#
# Parsing command line options and starting commands
#
class Out:
"""Convenience output printer providing coloring."""
def red(self, msg, file=sys.stderr):
print(colored(msg, "red"), file=file)
def green(self, msg, file=sys.stderr):
print(colored(msg, "green"), file=file)
def __call__(self, msg, red=False, green=False, file=sys.stdout):
color = "red" if red else ("green" if green else None)
print(colored(msg, color), file=file)
def check_call(self, arg, env=None, quiet=False):
if not quiet:
self(f"[$ {arg}]", file=sys.stderr)
return subprocess.check_call(arg, shell=True, env=env)
def run_ret(self, args, env=None, quiet=False):
if not quiet:
cmdstring = " ".join(args)
self(f"[$ {cmdstring}]", file=sys.stderr)
proc = subprocess.run(args, env=env, check=False)
return proc.returncode
def add_config_option(parser):
parser.add_argument(
"--config",
dest="inipath",
action="store",
default=Path("chatmail.ini"),
type=Path,
help="path to the chatmail.ini file",
)
parser.add_argument(
"--verbose",
"-v",
dest="verbose",
action="store_true",
default=False,
help="provide verbose logging",
)
def add_subcommand(subparsers, func):
name = func.__name__
assert name.endswith("_cmd")
name = name[:-4]
doc = func.__doc__.strip()
help = doc.split("\n")[0].strip(".")
p = subparsers.add_parser(name, description=doc, help=help)
p.set_defaults(func=func)
add_config_option(p)
return p
description = """
Setup your chatmail server configuration and
deploy it via SSH to your remote location.
"""
def get_parser():
"""Return an ArgumentParser for the 'cmdeploy' CLI"""
parser = argparse.ArgumentParser(description=description.strip())
subparsers = parser.add_subparsers(title="subcommands")
# find all subcommands in the module namespace
glob = globals()
for name, func in glob.items():
if name.endswith("_cmd"):
subparser = add_subcommand(subparsers, func)
addopts = glob.get(name + "_options")
if addopts is not None:
addopts(subparser)
return parser
def main(args=None):
"""Provide main entry point for 'cmdeploy' CLI invocation."""
parser = get_parser()
args = parser.parse_args(args=args)
if not hasattr(args, "func"):
return parser.parse_args(["-h"])
def get_sshexec():
print(f"[ssh] login to {args.config.mail_domain}")
return SSHExec(args.config.mail_domain, verbose=args.verbose)
args.get_sshexec = get_sshexec
out = Out()
kwargs = {}
if args.func.__name__ not in ("init_cmd", "fmt_cmd"):
if not args.inipath.exists():
out.red(f"expecting {args.inipath} to exist, run init first?")
raise SystemExit(1)
try:
args.config = read_config(args.inipath)
except Exception as ex:
out.red(ex)
raise SystemExit(1)
try:
res = args.func(args, out, **kwargs)
if res is None:
res = 0
return res
except KeyboardInterrupt:
out.red("KeyboardInterrupt")
sys.exit(130)
if __name__ == "__main__":
main()

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@@ -1,20 +0,0 @@
import importlib.resources
import os
import pyinfra
from cmdeploy import deploy_chatmail
def main():
config_path = os.getenv(
"CHATMAIL_INI",
importlib.resources.files("cmdeploy").joinpath("../../../chatmail.ini"),
)
disable_mail = bool(os.environ.get('CHATMAIL_DISABLE_MAIL'))
deploy_chatmail(config_path, disable_mail)
if pyinfra.is_cli:
main()

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@@ -1,66 +0,0 @@
import datetime
import importlib
from jinja2 import Template
from . import remote
def get_initial_remote_data(sshexec, mail_domain):
return sshexec.logged(
call=remote.rdns.perform_initial_checks, kwargs=dict(mail_domain=mail_domain)
)
def check_initial_remote_data(remote_data, *, print=print):
mail_domain = remote_data["mail_domain"]
if not remote_data["A"] and not remote_data["AAAA"]:
print(f"Missing A and/or AAAA DNS records for {mail_domain}!")
elif remote_data["MTA_STS"] != f"{mail_domain}.":
print("Missing MTA-STS CNAME record:")
print(f"mta-sts.{mail_domain}. CNAME {mail_domain}.")
elif remote_data["WWW"] != f"{mail_domain}.":
print("Missing www CNAME record:")
print(f"www.{mail_domain}. CNAME {mail_domain}.")
else:
return remote_data
def get_filled_zone_file(remote_data):
sts_id = remote_data.get("sts_id")
if not sts_id:
remote_data["sts_id"] = datetime.datetime.now().strftime("%Y%m%d%H%M")
template = importlib.resources.files(__package__).joinpath("chatmail.zone.j2")
content = template.read_text()
zonefile = Template(content).render(**remote_data)
lines = [x.strip() for x in zonefile.split("\n") if x.strip()]
lines.append("")
zonefile = "\n".join(lines)
return zonefile
def check_full_zone(sshexec, remote_data, out, zonefile) -> int:
"""Check existing DNS records, optionally write them to zone file
and return (exitcode, remote_data) tuple."""
required_diff, recommended_diff = sshexec.logged(
remote.rdns.check_zonefile,
kwargs=dict(zonefile=zonefile, mail_domain=remote_data["mail_domain"]),
)
returncode = 0
if required_diff:
out.red("Please set required DNS entries at your DNS provider:\n")
for line in required_diff:
out(line)
out("")
returncode = 1
if recommended_diff:
out("WARNING: these recommended DNS entries are not set:\n")
for line in recommended_diff:
out(line)
if not (recommended_diff or required_diff):
out.green("Great! All your DNS entries are verified and correct.")
return returncode

View File

@@ -1,12 +0,0 @@
uri = proxy:/run/doveauth/doveauth.socket:auth
iterate_disable = no
iterate_prefix = userdb/
default_pass_scheme = plain
# %E escapes characters " (double quote), ' (single quote) and \ (backslash) with \ (backslash).
# See <https://doc.dovecot.org/configuration_manual/config_file/config_variables/#modifiers>
# for documentation.
#
# We escape user-provided input and use double quote as a separator.
password_key = passdb/%Ew"%Eu
user_key = userdb/%Eu

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@@ -1,234 +0,0 @@
## Dovecot configuration file
{% if disable_ipv6 %}
listen = *
{% endif %}
protocols = imap lmtp
auth_mechanisms = plain
{% if debug == true %}
auth_verbose = yes
auth_debug = yes
auth_debug_passwords = yes
auth_verbose_passwords = plain
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
# Increase number of logged in IMAP connections.
# Each connection is handled by a separate `imap` process.
# `imap` process should have `client_limit=1` as described in
# <https://doc.dovecot.org/configuration_manual/service_configuration/#service-limits>
# so each logged in IMAP session will need its own `imap` process.
#
# If this limit is reached,
# users will fail to LOGIN as `imap-login` process
# will accept them logging in but fail to transfer logged in
# connection to `imap` process until someone logs out and
# the following warning will be logged:
# Warning: service(imap): process_limit (1024) reached, client connections are being dropped
service imap {
process_limit = 50000
}
mail_server_admin = mailto:root@{{ config.mail_domain }}
mail_server_comment = Chatmail server
# `zlib` enables compressing messages stored in the maildir.
# See
# <https://doc.dovecot.org/configuration_manual/zlib_plugin/>
# for documentation.
#
# quota plugin documentation:
# <https://doc.dovecot.org/configuration_manual/quota_plugin/>
mail_plugins = zlib quota
imap_capability = +XDELTAPUSH XCHATMAIL
# Authentication for system users.
passdb {
driver = dict
args = /etc/dovecot/auth.conf
}
userdb {
driver = dict
args = /etc/dovecot/auth.conf
}
##
## Mailbox locations and namespaces
##
# Mailboxes are stored in the "mail" directory of the vmail user home.
mail_location = maildir:{{ config.mailboxes_dir }}/%u
namespace inbox {
inbox = yes
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Trash {
special_use = \Trash
}
# For \Sent mailboxes there are two widely used names. We'll mark both of
# them as \Sent. User typically deletes one of them if duplicates are created.
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
}
mail_uid = vmail
mail_gid = vmail
mail_privileged_group = vmail
##
## Mail processes
##
# Pass all IMAP METADATA requests to the server implementing Dovecot's dict protocol.
mail_attribute_dict = proxy:/run/chatmail-metadata/metadata.socket:metadata
# `imap_zlib` enables IMAP COMPRESS (RFC 4978).
# <https://datatracker.ietf.org/doc/html/rfc4978.html>
protocol imap {
mail_plugins = $mail_plugins imap_zlib imap_quota last_login
imap_metadata = yes
}
plugin {
last_login_dict = proxy:/run/chatmail-lastlogin/lastlogin.socket:lastlogin
#last_login_key = last-login/%u # default
last_login_precision = s
}
protocol lmtp {
# 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>
mail_plugins = $mail_plugins mail_lua notify push_notification push_notification_lua
}
plugin {
zlib_save = gz
}
plugin {
imap_compress_deflate_level = 6
}
plugin {
# for now we define static quota-rules for all users
quota = maildir:User quota
quota_rule = *:storage={{ config.max_mailbox_size }}
quota_max_mail_size={{ config.max_message_size }}
quota_grace = 0
# 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
}
service lmtp {
user=vmail
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
service auth {
unix_listener /var/spool/postfix/private/auth {
mode = 0660
user = postfix
group = postfix
}
}
service auth-worker {
# Default is root.
# Drop privileges we don't need.
user = vmail
}
service imap-login {
# High-security mode.
# Each process serves a single connection and exits afterwards.
# This is the default, but we set it explicitly to be sure.
# See <https://doc.dovecot.org/admin_manual/login_processes/#high-security-mode> for details.
service_count = 1
# Inrease the number of simultaneous connections.
#
# As of Dovecot 2.3.19.1 the default is 100 processes.
# Combined with `service_count = 1` it means only 100 connections
# can be handled simultaneously.
process_limit = 10000
# Avoid startup latency for new connections.
process_min_avail = 10
}
service anvil {
# We are disabling anvil penalty on failed login attempts
# because it can only detect brute forcing by IP address
# not by username. As the correct IP address is not handed
# to dovecot anyway, it is more of hindrance than of use.
# See <https://www.dovecot.org/list/dovecot/2012-May/135485.html> for details.
unix_listener anvil-auth-penalty {
mode = 0
}
}
ssl = required
ssl_cert = </var/lib/acme/live/{{ config.mail_domain }}/fullchain
ssl_key = </var/lib/acme/live/{{ config.mail_domain }}/privkey
ssl_dh = </usr/share/dovecot/dh.pem
ssl_min_protocol = TLSv1.2
ssl_prefer_server_ciphers = yes
{% if config.imap_rawlog %}
service postlogin {
executable = script-login -d rawlog
unix_listener postlogin {
}
}
service imap {
executable = imap postlogin
}
protocol imap {
#rawlog_dir = /tmp/rawlog/%u
# Put .in and .out imap protocol logging files into per-user homedir
# You can use a command like this to combine into one protocol stream:
# sort -sn <(sed 's/ / C: /' *.in) <(sed 's/ / S: /' cat *.out)
rawlog_dir = %h
}
{% endif %}

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@@ -1,12 +0,0 @@
# delete all mails after {{ config.delete_mails_after }} days, in the Inbox
2 0 * * * vmail find {{ config.mailboxes_dir }} -path '*/cur/*' -mtime +{{ config.delete_mails_after }} -type f -delete
# or in any IMAP subfolder
2 0 * * * vmail find {{ config.mailboxes_dir }} -path '*/.*/cur/*' -mtime +{{ config.delete_mails_after }} -type f -delete
# even if they are unseen
2 0 * * * vmail find {{ config.mailboxes_dir }} -path '*/new/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * vmail find {{ config.mailboxes_dir }} -path '*/.*/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 {{ config.mailboxes_dir }} -path '*/tmp/*' -mtime +{{ config.delete_mails_after }} -type f -delete
2 0 * * * vmail find {{ config.mailboxes_dir }} -path '*/.*/tmp/*' -mtime +{{ config.delete_mails_after }} -type f -delete
3 0 * * * vmail find {{ config.mailboxes_dir }} -name 'maildirsize' -type f -delete
4 0 * * * vmail /usr/local/lib/chatmaild/venv/bin/delete_inactive_users /usr/local/lib/chatmaild/chatmail.ini

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@@ -1,28 +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
-- Notify METADATA server about new message.
mbox:metadata_set("/private/messagenew", "")
end
mbox:free()
end
function dovecot_lua_notify_end_txn(ctx, success)
end

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@@ -1,88 +0,0 @@
import importlib
import io
import os
import qrcode
from PIL import Image, ImageDraw, ImageFont
def gen_qr_png_data(maildomain):
url = f"DCACCOUNT:https://{maildomain}/new"
image = gen_qr(maildomain, url)
temp = io.BytesIO()
image.save(temp, format="png")
temp.seek(0)
return temp
def gen_qr(maildomain, url):
# taken and modified from
# https://github.com/deltachat/mailadm/blob/master/src/mailadm/gen_qr.py
# info = f"{maildomain} invite code"
info = ""
# load QR code
qr = qrcode.QRCode(
version=1,
error_correction=qrcode.constants.ERROR_CORRECT_H,
box_size=1,
border=1,
)
qr.add_data(url)
qr.make(fit=True)
qr_img = qr.make_image(fill_color="black", back_color="white")
# paint all elements
ttf_path = str(
importlib.resources.files(__package__).joinpath("data/opensans-regular.ttf")
)
logo_red_path = str(
importlib.resources.files(__package__).joinpath("data/delta-chat-bw.png")
)
assert os.path.exists(ttf_path), ttf_path
font_size = 16
font = ImageFont.truetype(font=ttf_path, size=font_size)
num_lines = ((info).count("\n") + 1) if info else 0
size = width = 384
qr_padding = 6
text_height = font_size * num_lines
height = size + text_height
image = Image.new("RGBA", (width, height), "white")
qr_final_size = width - (qr_padding * 2)
if num_lines:
draw = ImageDraw.Draw(image)
# draw text
if hasattr(font, "getsize"):
info_pos = (width - font.getsize(info.strip())[0]) // 2
else:
info_pos = (width - font.getbbox(info.strip())[3]) // 2
draw.multiline_text(
(info_pos, size - qr_padding // 2),
info,
font=font,
fill="black",
align="right",
)
# paste QR code
image.paste(
qr_img.resize((qr_final_size, qr_final_size), resample=Image.NEAREST),
(qr_padding, qr_padding),
)
# background delta logo
logo2_img = Image.open(logo_red_path)
logo2_width = int(size / 6)
logo2 = logo2_img.resize((logo2_width, logo2_width), resample=Image.NEAREST)
pos = int((size / 2) - (logo2_width / 2))
image.paste(logo2, (pos, pos), mask=logo2)
return image

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@@ -1,12 +0,0 @@
[Unit]
Description=Iroh relay
[Service]
ExecStart=/usr/local/bin/iroh-relay --config-path /etc/iroh-relay.toml
Restart=on-failure
RestartSec=5s
User=iroh
Group=iroh
[Install]
WantedBy=multi-user.target

View File

@@ -1,5 +0,0 @@
enable_relay = true
http_bind_addr = "[::]:3340"
enable_stun = true
enable_metrics = false
metrics_bind_addr = "127.0.0.1:9092"

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@@ -1,3 +0,0 @@
[Journal]
MaxRetentionSec=3d
Storage=volatile

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@@ -1 +0,0 @@
*/5 * * * * root {{ config.execpath }} {{ config.mailboxes_dir }} >/var/www/html/metrics

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@@ -1,64 +0,0 @@
counter delivered_mail
/saved mail to INBOX$/ {
delivered_mail++
}
counter quota_exceeded
/Quota exceeded \(mailbox for user is full\)$/ {
quota_exceeded++
}
# Essentially the number of outgoing messages.
counter dkim_signed
/DKIM-Signature field added/ {
dkim_signed++
}
counter created_accounts
counter created_ci_accounts
counter created_nonci_accounts
/: Created address: (?P<addr>.*)$/ {
created_accounts++
$addr =~ /ci-/ {
created_ci_accounts++
} else {
created_nonci_accounts++
}
}
counter postfix_timeouts
/timeout after DATA/ {
postfix_timeouts++
}
counter postfix_noqueue
/postfix\/.*NOQUEUE/ {
postfix_noqueue++
}
counter warning_count
/warning/ {
warning_count++
}
counter filtered_mail_count
counter encrypted_mail_count
/Filtering encrypted mail\./ {
encrypted_mail_count++
filtered_mail_count++
}
counter unencrypted_mail_count
/Filtering unencrypted mail\./ {
unencrypted_mail_count++
filtered_mail_count++
}
counter rejected_unencrypted_mail_count
/Rejected unencrypted mail\./ {
rejected_unencrypted_mail_count++
}

View File

@@ -1,10 +0,0 @@
[Unit]
Description=mtail
[Service]
Type=simple
ExecStart=/bin/sh -c "journalctl -f -o short-iso -n 0 | /usr/bin/mtail --address={{ address }} --port={{ port }} --progs /etc/mtail --logtostderr --logs -"
Restart=on-failure
[Install]
WantedBy=multi-user.target

View File

@@ -1,51 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<clientConfig version="1.1">
<emailProvider id="{{ config.domain_name }}">
<domain>{{ config.domain_name }}</domain>
<displayName>{{ config.domain_name }} chatmail</displayName>
<displayShortName>{{ config.domain_name }}</displayShortName>
<incomingServer type="imap">
<hostname>{{ config.domain_name }}</hostname>
<port>993</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</incomingServer>
<incomingServer type="imap">
<hostname>{{ config.domain_name }}</hostname>
<port>143</port>
<socketType>STARTTLS</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</incomingServer>
<incomingServer type="imap">
<hostname>{{ config.domain_name }}</hostname>
<port>443</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</incomingServer>
<outgoingServer type="smtp">
<hostname>{{ config.domain_name }}</hostname>
<port>465</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</outgoingServer>
<outgoingServer type="smtp">
<hostname>{{ config.domain_name }}</hostname>
<port>587</port>
<socketType>STARTTLS</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</outgoingServer>
<outgoingServer type="smtp">
<hostname>{{ config.domain_name }}</hostname>
<port>443</port>
<socketType>SSL</socketType>
<authentication>password-cleartext</authentication>
<username>%EMAILADDRESS%</username>
</outgoingServer>
</emailProvider>
</clientConfig>

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@@ -1,4 +0,0 @@
version: STSv1
mode: enforce
mx: {{ config.domain_name }}
max_age: 2419200

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@@ -1,131 +0,0 @@
load_module modules/ngx_stream_module.so;
user www-data;
worker_processes auto;
pid /run/nginx.pid;
error_log syslog:server=unix:/dev/log,facility=local3;
events {
worker_connections 768;
# multi_accept on;
}
stream {
map $ssl_preread_alpn_protocols $proxy {
default 127.0.0.1:8443;
~\bsmtp\b 127.0.0.1:465;
~\bimap\b 127.0.0.1:993;
}
server {
listen 443;
{% if not disable_ipv6 %}
listen [::]:443;
{% endif %}
proxy_pass $proxy;
ssl_preread on;
}
}
http {
sendfile on;
tcp_nopush on;
# Do not emit nginx version on error pages.
server_tokens off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers on;
ssl_certificate /var/lib/acme/live/{{ config.domain_name }}/fullchain;
ssl_certificate_key /var/lib/acme/live/{{ config.domain_name }}/privkey;
gzip on;
server {
listen 8443 ssl default_server;
{% if not disable_ipv6 %}
listen [::]:8443 ssl default_server;
{% endif %}
root /var/www/html;
index index.html index.htm;
server_name _;
access_log syslog:server=unix:/dev/log,facility=local7;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ =404;
}
location /metrics {
default_type text/plain;
}
location /new {
if ($request_method = GET) {
# Redirect to Delta Chat,
# which will in turn do a POST request.
return 301 dcaccount:https://{{ config.domain_name }}/new;
}
fastcgi_pass unix:/run/fcgiwrap.socket;
include /etc/nginx/fastcgi_params;
fastcgi_param SCRIPT_FILENAME /usr/lib/cgi-bin/newemail.py;
}
# Old URL for compatibility with e.g. printed QR codes.
#
# Copy-paste instead of redirect to /new
# because Delta Chat core does not follow redirects.
#
# Redirects are only for browsers.
location /cgi-bin/newemail.py {
if ($request_method = GET) {
return 301 dcaccount:https://{{ config.domain_name }}/new;
}
fastcgi_pass unix:/run/fcgiwrap.socket;
include /etc/nginx/fastcgi_params;
fastcgi_param SCRIPT_FILENAME /usr/lib/cgi-bin/newemail.py;
}
# Proxy to iroh-relay service.
location /relay {
proxy_pass http://127.0.0.1:3340;
proxy_http_version 1.1;
# Upgrade header is normally set to "iroh derp http" or "websocket".
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location /relay/probe {
proxy_pass http://127.0.0.1:3340;
proxy_http_version 1.1;
}
location /generate_204 {
proxy_pass http://127.0.0.1:3340;
proxy_http_version 1.1;
}
}
# Redirect www. to non-www
server {
listen 8443 ssl;
{% if not disable_ipv6 %}
listen [::]:8443 ssl;
{% endif %}
server_name www.{{ config.domain_name }};
return 301 $scheme://{{ config.domain_name }}$request_uri;
access_log syslog:server=unix:/dev/log,facility=local7;
}
}

View File

@@ -1 +0,0 @@
{{ config.opendkim_selector }}._domainkey.{{ config.domain_name }} {{ config.domain_name }}:{{ config.opendkim_selector }}:/etc/dkimkeys/{{ config.opendkim_selector }}.private

View File

@@ -1 +0,0 @@
*@{{ config.domain_name }} {{ config.opendkim_selector }}._domainkey.{{ config.domain_name }}

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

@@ -1,66 +0,0 @@
# OpenDKIM configuration.
Syslog yes
SyslogSuccess yes
#LogWhy no
# Common signing and verification parameters. In Debian, the "From" header is
# oversigned, because it is often the identity key used by reputation systems
# and thus somewhat security sensitive.
Canonicalization relaxed/simple
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
# setup options can be found in /usr/share/doc/opendkim/README.opendkim.
Domain {{ config.domain_name }}
Selector {{ config.opendkim_selector }}
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.
#
# Default list is here:
# <https://github.com/trusteddomainproject/OpenDKIM/blob/5c539587561785a66c1f67f720f2fb741f320785/libopendkim/dkim.c#L221-L245>
SignHeaders *,+autocrypt,+content-type
# Prevent addition of second Content-Type header
# and other important headers that should not be added
# after signing the message.
# See
# <https://www.zone.eu/blog/2024/05/17/bimi-and-dmarc-cant-save-you/>
# and RFC 6376 (page 41) for reference.
#
# We don't use "l=" body length so the problem described in RFC 6376
# is not applicable, but adding e.g. a second "From" header
# or second "Autocrypt" header is better prevented in any case.
#
# Default is empty.
OversignHeaders from,reply-to,subject,date,to,cc,resent-date,resent-from,resent-sender,resent-to,resent-cc,in-reply-to,references,list-id,list-help,list-unsubscribe,list-subscribe,list-post,list-owner,list-archive,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
# "opendkim" in that case.
UserID opendkim
UMask 007
Socket local:/var/spool/postfix/opendkim/opendkim.sock
PidFile /run/opendkim/opendkim.pid
# 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

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

View File

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

View File

@@ -1,86 +0,0 @@
myorigin = {{ config.mail_domain }}
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# See http://www.postfix.org/COMPATIBILITY_README.html
compatibility_level = 3.6
# TLS parameters
smtpd_tls_cert_file=/var/lib/acme/live/{{ config.mail_domain }}/fullchain
smtpd_tls_key_file=/var/lib/acme/live/{{ config.mail_domain }}/privkey
smtpd_tls_security_level=may
smtp_tls_CApath=/etc/ssl/certs
smtp_tls_security_level=may
smtp_tls_session_cache_database = btree:${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 }}
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
# Postfix does not deliver mail for any domain by itself.
# Primary domain is listed in `virtual_mailbox_domains` instead
# and handed over to Dovecot.
mydestination =
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
message_size_limit = {{config.max_message_size}}
recipient_delimiter = +
inet_interfaces = all
{% if disable_ipv6 %}
inet_protocols = ipv4
{% else %}
inet_protocols = all
{% endif %}
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
# Do not lookup SMTP client hostnames to reduce delays
# and avoid unnecessary DNS requests.
smtpd_peername_lookup = no

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@@ -1,10 +0,0 @@
[Unit]
Description=Postfix MTA-STS resolver daemon
[Service]
ExecStart=/usr/local/lib/postfix-mta-sts-resolver/bin/mta-sts-daemon
Restart=always
RestartSec=30
[Install]
WantedBy=multi-user.target

View File

@@ -1,13 +0,0 @@
host: 127.0.0.1
port: 8461
reuse_port: true
shutdown_timeout: 20
cache:
type: internal
options:
cache_size: 10000
proactive_policy_fetching:
enabled: true
default_zone:
strict_testing: false
timeout: 4

View File

@@ -1,4 +0,0 @@
/^Received:/ IGNORE
/^X-Originating-IP:/ IGNORE
/^X-Mailer:/ IGNORE
/^User-Agent:/ IGNORE

View File

@@ -1,12 +0,0 @@
"""
The 'cmdeploy.remote' sub package contains modules with remotely executing functions.
Its "_sshexec_bootstrap" module is executed remotely through `SSHExec`
and its main() loop there stays connected via a command channel,
ready to receive function invocations ("command") and return results.
"""
from . import rdns, rshell
__all__ = ["rdns", "rshell"]

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@@ -1,30 +0,0 @@
import builtins
import importlib
import traceback
## Function Execution server
def _run_loop(cmd_channel):
while cmd := cmd_channel.receive():
cmd_channel.send(_handle_one_request(cmd))
def _handle_one_request(cmd):
pymod_path, func_name, kwargs = cmd
try:
mod = importlib.import_module(pymod_path)
func = getattr(mod, func_name)
res = func(**kwargs)
return ("finish", res)
except:
data = traceback.format_exc()
return ("error", data)
def main(channel):
# enable simple "print" logging
builtins.print = lambda x="": channel.send(("log", x))
_run_loop(channel)

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@@ -1,98 +0,0 @@
"""
Pure python functions which execute remotely in a system Python interpreter.
All functions of this module
- need to get and and return Python builtin data types only,
- can only use standard library dependencies,
- can freely call each other.
"""
import re
from .rshell import CalledProcessError, shell
def perform_initial_checks(mail_domain):
"""Collecting initial DNS settings."""
assert mail_domain
if not shell("dig", fail_ok=True):
shell("apt-get install -y dnsutils")
A = query_dns("A", mail_domain)
AAAA = query_dns("AAAA", mail_domain)
MTA_STS = query_dns("CNAME", f"mta-sts.{mail_domain}")
WWW = query_dns("CNAME", f"www.{mail_domain}")
res = dict(mail_domain=mail_domain, A=A, AAAA=AAAA, MTA_STS=MTA_STS, WWW=WWW)
res["acme_account_url"] = shell("acmetool account-url", fail_ok=True)
res["dkim_entry"] = get_dkim_entry(mail_domain, dkim_selector="opendkim")
if not MTA_STS or not WWW or (not A and not AAAA):
return res
# parse out sts-id if exists, example: "v=STSv1; id=2090123"
parts = query_dns("TXT", f"_mta-sts.{mail_domain}").split("id=")
res["sts_id"] = parts[1].rstrip('"') if len(parts) == 2 else ""
return res
def get_dkim_entry(mail_domain, dkim_selector):
try:
dkim_pubkey = shell(
f"openssl rsa -in /etc/dkimkeys/{dkim_selector}.private "
"-pubout 2>/dev/null | awk '/-/{next}{printf(\"%s\",$0)}'"
)
except CalledProcessError:
return
dkim_value_raw = f"v=DKIM1;k=rsa;p={dkim_pubkey};s=email;t=s"
dkim_value = '" "'.join(re.findall(".{1,255}", dkim_value_raw))
return f'{dkim_selector}._domainkey.{mail_domain}. TXT "{dkim_value}"'
def query_dns(typ, domain):
# Get autoritative nameserver from the SOA record.
soa_answers = [
x.split()
for x in shell(f"dig -r -q {domain} -t SOA +noall +authority +answer").split(
"\n"
)
]
soa = [a for a in soa_answers if len(a) >= 3 and a[3] == "SOA"]
if not soa:
return
ns = soa[0][4]
# Query authoritative nameserver directly to bypass DNS cache.
res = shell(f"dig @{ns} -r -q {domain} -t {typ} +short")
if res:
return res.split("\n")[0]
return ""
def check_zonefile(zonefile, mail_domain):
"""Check expected zone file entries."""
required = True
required_diff = []
recommended_diff = []
for zf_line in zonefile.splitlines():
if "; Recommended" in zf_line:
required = False
continue
if not zf_line.strip() or zf_line.startswith(";"):
continue
print(f"dns-checking {zf_line!r}")
zf_domain, zf_typ, zf_value = zf_line.split(maxsplit=2)
zf_domain = zf_domain.rstrip(".")
zf_value = zf_value.strip()
query_value = query_dns(zf_typ, zf_domain)
if zf_value != query_value:
assert zf_typ in ("A", "AAAA", "CNAME", "CAA", "SRV", "MX", "TXT"), zf_line
if required:
required_diff.append(zf_line)
else:
recommended_diff.append(zf_line)
return required_diff, recommended_diff

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@@ -1,16 +0,0 @@
from subprocess import CalledProcessError, check_output
def shell(command, fail_ok=False):
print(f"$ {command}")
try:
return check_output(command, shell=True).decode().rstrip()
except CalledProcessError:
if not fail_ok:
raise
return ""
def get_systemd_running():
lines = shell("systemctl --type=service --state=running").split("\n")
return [line for line in lines if line.startswith(" ")]

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@@ -1,12 +0,0 @@
[Unit]
Description=Chatmail dict proxy for IMAP METADATA
[Service]
ExecStart={execpath} /run/chatmail-metadata/metadata.socket {config_path}
Restart=always
RestartSec=30
User=vmail
RuntimeDirectory=chatmail-metadata
[Install]
WantedBy=multi-user.target

View File

@@ -1,12 +0,0 @@
[Unit]
Description=Chatmail dict authentication proxy for dovecot
[Service]
ExecStart={execpath} /run/doveauth/doveauth.socket {config_path}
Restart=always
RestartSec=30
User=vmail
RuntimeDirectory=doveauth
[Install]
WantedBy=multi-user.target

View File

@@ -1,67 +0,0 @@
[Unit]
Description=Chatmail echo bot for testing it works
[Service]
ExecStart={execpath} {config_path}
Environment="PATH={remote_venv_dir}:$PATH"
Restart=always
RestartSec=30
User=echobot
Group=echobot
# Create /var/lib/echobot
StateDirectory=echobot
# Create /run/echobot
#
# echobot stores /run/echobot/password
# with a password there, which doveauth then reads.
RuntimeDirectory=echobot
WorkingDirectory=/var/lib/echobot
# Apply security restrictions suggested by
# systemd-analyze security echobot.service
CapabilityBoundingSet=
LockPersonality=true
MemoryDenyWriteExecute=true
NoNewPrivileges=true
PrivateDevices=true
PrivateMounts=true
PrivateTmp=true
# We need to know about doveauth user to give it access to /run/echobot/password
PrivateUsers=false
ProtectClock=true
ProtectControlGroups=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectProc=noaccess
# Should be "strict", but we currently write /accounts folder in a protected path
ProtectSystem=full
RemoveIPC=true
RestrictAddressFamilies=AF_INET AF_INET6
RestrictNamespaces=true
RestrictRealtime=true
RestrictSUIDSGID=true
SystemCallArchitectures=native
SystemCallFilter=~@clock
SystemCallFilter=~@cpu-emulation
SystemCallFilter=~@debug
SystemCallFilter=~@module
SystemCallFilter=~@mount
SystemCallFilter=~@obsolete
SystemCallFilter=~@raw-io
SystemCallFilter=~@reboot
SystemCallFilter=~@resources
SystemCallFilter=~@swap
UMask=0077
[Install]
WantedBy=multi-user.target

View File

@@ -1,11 +0,0 @@
[Unit]
Description=Chatmail Postfix before queue filter
[Service]
ExecStart={execpath} {config_path}
Restart=always
RestartSec=30
User=filtermail
[Install]
WantedBy=multi-user.target

View File

@@ -1,12 +0,0 @@
[Unit]
Description=Dict proxy for last-login tracking
[Service]
ExecStart={execpath} /run/chatmail-lastlogin/lastlogin.socket {config_path}
Restart=always
RestartSec=30
User=vmail
RuntimeDirectory=chatmail-lastlogin
[Install]
WantedBy=multi-user.target

View File

@@ -1,87 +0,0 @@
import inspect
import os
import sys
from queue import Queue
import execnet
from . import remote
class FuncError(Exception):
pass
def bootstrap_remote(gateway, remote=remote):
"""Return a command channel which can execute remote functions."""
source_init_path = inspect.getfile(remote)
basedir = os.path.dirname(source_init_path)
name = os.path.basename(basedir)
# rsync sourcedir to remote host
remote_pkg_path = f"/root/from-cmdeploy/{name}"
q = Queue()
finish = lambda: q.put(None)
rsync = execnet.RSync(sourcedir=basedir, verbose=False)
rsync.add_target(gateway, remote_pkg_path, finishedcallback=finish, delete=True)
rsync.send()
q.get()
# start sshexec bootstrap and return its command channel
remote_sys_path = os.path.dirname(remote_pkg_path)
channel = gateway.remote_exec(
f"""
import sys
sys.path.insert(0, {remote_sys_path!r})
from remote._sshexec_bootstrap import main
main(channel)
"""
)
return channel
def print_stderr(item="", end="\n"):
print(item, file=sys.stderr, end=end)
class SSHExec:
RemoteError = execnet.RemoteError
FuncError = FuncError
def __init__(self, host, verbose=False, python="python3", timeout=60):
self.gateway = execnet.makegateway(f"ssh=root@{host}//python={python}")
self._remote_cmdloop_channel = bootstrap_remote(self.gateway, remote)
self.timeout = timeout
self.verbose = verbose
def __call__(self, call, kwargs=None, log_callback=None):
if kwargs is None:
kwargs = {}
assert call.__module__.startswith("cmdeploy.remote")
modname = call.__module__.replace("cmdeploy.", "")
self._remote_cmdloop_channel.send((modname, call.__name__, kwargs))
while 1:
code, data = self._remote_cmdloop_channel.receive(timeout=self.timeout)
if log_callback is not None and code == "log":
log_callback(data)
elif code == "finish":
return data
elif code == "error":
raise self.FuncError(data)
def logged(self, call, kwargs):
def log_progress(data):
sys.stderr.write(".")
sys.stderr.flush()
title = call.__doc__
if not title:
title = call.__name__
if self.verbose:
print_stderr("[ssh] " + title)
return self(call, kwargs, log_callback=print_stderr)
else:
print_stderr(title, end="")
res = self(call, kwargs, log_callback=log_progress)
print_stderr()
return res

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