1754: centralize Webmail authentication behind the admin panel (SSO) r=mergify[bot] a=nextgens
## What type of PR?
Enhancement: it centralizes the authentication of webmails to the admin interface.
## What does this PR do?
It implements the glue required for webmails to do SSO using the admin interface.
One of the main advantages of centralizing things this way is that it reduces significantly the attack surface available to an unauthenticated attacker (no webmail access until there is a valid Flask session).
Others include the ability to implement 2FA down the line and rate-limit things as required.
### Related issue(s)
- #783
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Florent Daigniere <nextgens@freenetproject.org>
1758: Implement a simpler credential cache (alternative to #1755) r=mergify[bot] a=nextgens
## What type of PR?
Feature: it implements a credential cache to speedup authentication requests.
## What does this PR do?
Credentials are stored in cold-storage using a slow, salted/iterated hash function to prevent offline bruteforce attacks. This creates a performance bottleneck for no valid reason (see the
rationale/long version on https://github.com/Mailu/Mailu/issues/1194#issuecomment-762115549).
The new credential cache makes things fast again.
This is the simpler version of #1755 (with no new dependencies)
### Related issue(s)
- close#1411
- close#1194
- close#1755
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
1776: optimize generation of transport nexthop r=mergify[bot] a=ghostwheel42
## What type of PR?
bug-fix and enhancement.
## What does this PR do?
Possibly there should be more input validation when editing a relay, but for now this tries to make the best out of the existing "smtp" attribute while maintaining backwards compatibility. When relay is empty, the transport's nexthop is the MX of the relayed domain to fix#1588
```
RELAY NEXTHOP TRANSPORT
empty use MX of relay domain smtp:domain
:port use MX of relay domain and use port smtp:domain:port
target resolve A/AAAA of target smtp:[target]
target:port resolve A/AAAA of target and use port smtp:[target]:port
mx:target resolve MX of target smtp:target
mx:target:port resolve MX of target and use port smtp:target:port
lmtp:target resolve A/AAAA of target lmtp:target
lmtp:target:port resolve A/AAAA of target and use port lmtp:target:port
target can also be an IPv4 or IPv6 address (an IPv6 address must be enclosed in []: [2001:DB8::]).
```
When there is proper input validation and existing database entries are migrated this function can be made much shorter again.
### Related issue(s)
- closes#1588
- closes#1815
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [X] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Florent Daigniere <nextgens@freenetproject.org>
Co-authored-by: Alexander Graf <ghostwheel42@users.noreply.github.com>
1296: fetchmail: print unhandled exceptions, but don't crash r=Nebukadneza a=Al2Klimov
fixes#1295
1322: Bump validators from 0.12.5 to 0.12.6 in /core/admin r=Nebukadneza a=dependabot[bot]
Bumps [validators](https://github.com/kvesteri/validators) from 0.12.5 to 0.12.6.
<details>
<summary>Changelog</summary>
*Sourced from [validators's changelog](https://github.com/kvesteri/validators/blob/master/CHANGES.rst).*
> 0.12.6 (2019-05-08)
> ^^^^^^^^^^^^^^^^^^^
>
> - Fixed domain validator for single character domains ([#118](https://github-redirect.dependabot.com/kvesteri/validators/issues/118), pull request courtesy kingbuzzman)
</details>
<details>
<summary>Commits</summary>
- See full diff in [compare view](https://github.com/kvesteri/validators/commits)
</details>
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1337: Add IPv6 to allow_nets r=Nebukadneza a=PhilRW
Roundcube was not connecting to sieve with IPv6 enabled.
Fixes#1336
1358: Add port to relay if it contains a colon r=Nebukadneza a=PhilRW
## What type of PR?
enhancement
## What does this PR do?
Allows relaying domains to non-standard SMTP ports by appending `:port` to the destination host/IP. E.g., `mx1.internal:2525`
### Related issue(s)
Closes#1357
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Philip Rosenberg-Watt <p.rosenberg-watt@cablelabs.com>
1359: Refactor the rate limiting code r=mergify[bot] a=kaiyou
## What type of PR?
Enhancement
## What does this PR do?
Rate limiting was already redesigned to use Python limits. This
introduced some unexpected behavior, including the fact that only
one criteria is supported per limiter. Docs and setup utility are
updated with this in mind.
Also, the code was made more generic, so limiters can be delivered
for something else than authentication. Authentication-specific
code was moved directly to the authentication routine.
### Related issue(s)
No specific issue.
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: kaiyou <pierre@jaury.eu>
1349: Add support for SRS, related to #328 r=mergify[bot] a=kaiyou
## What type of PR?
Feature
## What does this PR do?
It implements SRS using a Python SRS library.
### Related issue(s)
- closes#328
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: kaiyou <pierre@jaury.eu>
Rate limiting was already redesigned to use Python limits. This
introduced some unexpected behavior, including the fact that only
one criteria is supported per limiter. Docs and setup utility are
updated with this in mind.
Also, the code was made more generic, so limiters can be delivered
for something else than authentication. Authentication-specific
code was moved directly to the authentication routine.
The init script was pushing an application context, which maked
flask.g global and persisted across requests. This was evaluated
to have a minimal security impact.
This explains/fixes #738: flask_wtf caches the csrf token in the
application context to have a single token per request, and only
sets the session attribute after the first generation.
This will make network configuration and host based authentication
more robust, across different deployment platforms.
The options `RELAYNETS` and`POD_ADDRESS_RANGE` are kept for compatibility.
However, their usage have become optional.
At present postfix checks this view for matches in the domain table and is used to accept/deny messages sent into it however it never checks for matches in the alternative table.
Fixes#718
