- idna.encode does not encode upper-case letters,
so .lower() has to be called on value not on result
- split email-address on '@' only once
- converted '*'.format(*) to f-strings
- added docstrings
- removed from_dict method
- code cleanup/style (list concat, exceptions, return&else, line-length)
- added TODO comments on possible future changes
- revived original config-update function for backwards compability
- renamed config-dump to config-export to be in line with config-import
- converted '*'.format(*) to f-strings
- converted string-concatenation to f-strings
renamed single letter variables (m => match)
renamed classmethod arguments to cls (model)
removed shadowing of variables (hash, context)
shortened unneeded lambda functions (id)
converted type ... is to isinstance(...)
removed unneded imports (flask)
Updated ConfigManager to only modify app.config and not replace it.
Swagger does not play well, when app.config is not a real dict and
it is not necessary to keep ConfigManager around after init.
Also added "API" flag to config (default: disabled).
1654: Ensure that the rendered file ends with newline in order to make `pos… r=mergify[bot] a=tremlin
## What type of PR?
Bugfix
## What does this PR do?
This fixes#1580
### Related issue(s)
- closes#1580
## 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.
Co-authored-by: Thomas Rehn <thomas.rehn@initos.com>
1611: Adds own server on port 80 for letsencrypt and redirect r=mergify[bot] a=elektro-wolle
## What type of PR?
Bugfix
## What does this PR do?
Handle letsencrypt route to `.well-known` by own server configuration within nginx.
### Related issue(s)
closes#1564
## 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] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Wolfgang Jung <w.jung@polyas.de>
1635: Add support for AUTH LOGIN authentication mechanism for relaying emai… r=mergify[bot] a=Diman0
…l via smart hosts.
## What type of PR?
Feature
## What does this PR do?
This PR adds support to postfix for AUTH LOGIN authentication mechanism. This enables using smart hosts which only offer AUTH LOGIN.
### Related issue(s)
- Auto close an issue like: closes#1633
## 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.
- [n/a] 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: Dimitri Huisman <diman@huisman.xyz>
Because basically every MTA out there uses opportunistic TLS _in
the best case_, it's actually counter productive to use such strict
settings.
The alternative to a handshake error is often an unencrypted submission,
which is basically the opposite of what strict ssl_protocols and
ssl_ciphers tries to achieve.
Even big and established providers like Amazon SES are incompatible with the current
settings.
This reverts commit 2ddf46ad2b.
this enables usage of e.g. docker swarm secrets instead of exposing the
passwords directly via environment variables
just use DB_PW_FILE and SECRET_KEY_FILE instead of DB_PW and SECRET_KEY
- stabilized CommaSeparatedList by sorting values
- CommaSeparatedList can now handle list and set input
- from_dict now handles mapped keys
- from_dict now handles null values
- class Domain: handle dkim-key None correctly
- class User: delete obsolete keys after converting
- class Alias: now uses Email._dict_input
1557: Explicitly define ProxyFix options r=mergify[bot] a=brian-maloney
## What type of PR?
bug-fix
## What does this PR do?
This PR explicitly defines the options for the ProxyFix module, which fixes a regression in admin behind a reverse proxy.
### Related issue(s)
- #1309
## 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.
This is a bugfix, so not doc changes, and it's an extremely minor change.
Co-authored-by: Brian Maloney <3286425+brian-maloney@users.noreply.github.com>
1538: Introduce environment variable to control dovecot full-text-search r=mergify[bot] a=tremlin
## What type of PR?
Enhancement
## What does this PR do?
In #1320 a full-text-search feature was enabled in Dovecot by default. Since this can have a big impact on performance, I think it's preferable to offer an option to disable the feature if it is not needed. This PR doesn't change the default behavior (FTS on).
### Related issue(s)
- #1320
## 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.
- [ ] In case of feature or enhancement: documentation updated accordinagly
- [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Thomas Rehn <thomas.rehn@initos.com>
1478: Allow to enforce TLS for outbound r=mergify[bot] a=micw
using OUTBOUND_TLS_LEVEL=encrypt (default is 'may')
## What type of PR?
enhancement
## What does this PR do?
Add an option to postfix to enforce outbound traffic to be TLS encrypted.
## 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.
1501: In setup/flavor, change DMARC RUA and RUF email default settings r=mergify[bot] a=ofthesun9
## What type of PR?
bug-fix
## What does this PR do?
This PR changes the default value used to set DMARC_RUA and DMARC_RUF:
DMARC_RUA and DMARC_RUF defaults will reuse the value defined for POSTMASTER,
instead of 'admin' as previously.
Please note that the setup tool doesn't allow (yet?) to define dmarc_rua nor dmarc_ruf, so the default value is indeed used for the time being.
### Related issue(s)
closes#1463
## Prerequistes
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
1532: Replace SMPT with SMTP r=mergify[bot] a=dhoppe
1543: Disable Health checks on swarm mode r=mergify[bot] a=ofthesun9
ref: https://github.com/moby/moby/issues/35451
## What type of PR?
bug-fix
## What does this PR do?
Modify the docker-compose.yml template used by setup (swarm flavor) to disable Health checks on swarm mode for each service
### Related issue(s)
closes#1289
## Prerequistes
- [x] add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Michael Wyraz <michael@wyraz.de>
Co-authored-by: ofthesun9 <olivier@ofthesun.net>
Co-authored-by: Dennis Hoppe <github@debian-solutions.de>
1293: Remove `reject_unverified_recipient` from `smtpd_client_restrictions` r=mergify[bot] a=SunMar
## What type of PR?
Bug-fix
## What does this PR do?
It removes recipient verification, as it broke my catch-all address.
Fix for #1292, though I'm not sure if this is the right way to fix the issue. It was added in 175349a224.
### Related issue(s)
Fix for #1292 and a revert of 175349a224.
Co-authored-by: SunMar <SunMar@users.noreply.github.com>
1399: Remove SPF type SPF record #1394 r=mergify[bot] a=bladeswords
As mentioned in #1394 - In accordance with RFC 7208, offer only TXT RRs for SPF.
Agree with @Nebukadneza - but not sure how to go about telling people to remove the old record...
## What type of PR?
Documentation
## What does this PR do?
Removes the recommendation to add a SPF RR for SPF records, as this is no longer RFC complaint and often causes issues to maintain two records.
### Related issue(s)
- closes#1394
## Prerequistes
None
1417: docker-compose exec needs a -T flag if no TTY is allocated r=mergify[bot] a=ofthesun9
This flag is missing in 00_create_users.sh and is failing the tests on travis arm architecture
## What type of PR?
This PR is an enhancement/bugfix needed to allow usage of travis to test and deploy on arm platform
Before the PR, tests are failing with the msg: "the input device is not a TTY"
## What does this PR do?
This PR add -T flag for the docker-compose exec occurences found in 00_create_users.sh
Co-authored-by: bladeswords <bladeswords@users.noreply.github.com>
Co-authored-by: Dario Ernst <dario@kanojo.de>
Co-authored-by: ofthesun9 <olivier@ofthesun.net>
1389: Prefer specific alias over wildcard, regardless of case r=mergify[bot] a=Nebukadneza
## What type of PR?
bug-fix
## What does this PR do?
Since direct addresses (not aliases) are case-insensitive since a while,
it makes sense for aliases to behave the same. Up until now, a wildcard
alias could trump a alias not-matching-the-case of the incoming address.
This clarifies this behavior.
## Notes
I realize that the if-hell down there isn’t nice. What it is, however, is quite clear and easy to read. I’m hoping that if anyone ever gets confused in the future, this will make the current behavior transparent. For me, that was more important than a minimal amount of statements/branches …
### Related issue(s)
closes#1387
## Prerequistes
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Dario Ernst <github@kanojo.de>
1392: Use environment variables for cert paths/names in nginx certwatcher r=mergify[bot] a=Nebukadneza
## What type of PR?
bug-fix
## What does this PR do?
Previously, nginx certwatcher would only react to the hardcoded paths. It should have
honored the enviroment variables that are used by config.py too for this.
### Related issue(s)
closes#903
## Prerequistes
- [x] no feature or enhancement
- [x] minor/internal change
Co-authored-by: Dario Ernst <github@kanojo.de>
1398: Update crypto to be modern and inline with tls.conf r=mergify[bot] a=bladeswords
Updated to match tls.conf and be aligned to more modern cryptographic standards and only use currently secure protocols and ciphers.
## What type of PR?
bugfix
## What does this PR do?
Update to use more modern cryptographic techniques
### Related issue(s)
- Addresses comment raised in 4f973f6
## Prerequistes
None
Co-authored-by: bladeswords <bladeswords@users.noreply.github.com>
1393: Ignore newlines and comment-lines in postfix overrides r=mergify[bot] a=Nebukadneza
## What type of PR?
enhancement
## What does this PR do?
To make postfix override files understandable and readable, users may
want to insert empty newlines and #-commented lines in their postfix
override files too. This will now ignore such bogus-lines and not send
them to `postconf`, which produced ugly errors in the past.
### Related issue(s)
closes#1098
## 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: Dario Ernst <github@kanojo.de>
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>
1395: Remove duplicate ports line r=mergify[bot] a=Nebukadneza
## What type of PR?
enhancement
## What does this PR do?
### Related issue(s)
closes#1079
## Prerequistes
- [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.
1396: Use pyyaml safe_load instead of load r=mergify[bot] a=Nebukadneza
## What type of PR?
enhancement
## What does this PR do?
Since load in unsafe (ref: https://msg.pyyaml.org/load),
switch the only occurrance of `yaml.load` that i could
find to safe_load.
### Related issue(s)
closes#1085
## 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: Dario Ernst <github@kanojo.de>
1320: Add xapian full-text-search plugin to dovecot r=mergify[bot] a=Nebukadneza
## What type of PR?
Enhancement
## What does this PR do?
Currently we are not able to offer our users a FTS experience after the
demise of lucene due to unfixed coredumps with musl/alpine.
We now add lucene, the only remaining maintained small/lean FTS plugin
for dovecot. It is quite simple to add to our stack: A two-stage docker
build is used to compile the fts plugin in the first stage, and copy
over only the resulting plugin-artifact to the second stage, which is
our usual dovecot container. Configuration is also minimal.
There was a upstream issue where bodies were not able to be searched for subwords, but fortunately it was fixed quite quickly. We currently need to wait for a new release to use a stable tag in our `Dockerfile`.
### Related issue(s)
- https://github.com/Mailu/Mailu/pull/1176
- https://github.com/Mailu/Mailu/pull/1297
- https://github.com/Mailu/Mailu/issues/751
- **Upstream-issues which is the cause for the `TODO` in the `Dockerfile`**: https://github.com/grosjo/fts-xapian/issues/32
## Prerequistes
- [ ] Wait for upstream to prepare new release after https://github.com/grosjo/fts-xapian/issues/32 — so that we can use a stable tag in our `Dockerfile`
- [ ] In case of feature or enhancement: documentation updated accordingly
- [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Dario Ernst <dario@kanojo.de>
Co-authored-by: Dario Ernst <dario.ernst@rommelag.com>
As mentioned in #1394 - In accordance with RFC 7208, offer only TXT RRs for SPF.
Agree with @Nebukadneza - but not sure how to go about telling people to remove the old record...
To make postfix override files understandable and readable, users may
want to insert empty newlines and #-commented lines in their postfix
override files too. This will now ignore such bogus-lines and not send
them to `postconf`, which produced ugly errors in the past.
closes#1098
Previously, nginx certwatcher would only react to the hardcoded paths. It should have
honored the enviroment variables that are used by config.py too for this.
closes#903
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>
1321: Upgrading nginx TLS configuration r=mergify[bot] a=radtkedev
## What type of PR?
Enhancement
## What does this PR do?
Upgrades the TLS protocols and ciphers to the recommended "Intermediate Configuration" and sets the "Old Configuration" for port 25 (SMTP) based on the [Mozilla SSL Configuration Generator](https://ssl-config.mozilla.org/) and adjusted for the nginx mail proxy.
Co-authored-by: Tom Radtke <tom@radtke.dev>
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>
Since direct addresses (not aliases) are case-insensitive since a while,
it makes sense for aliases to behave the same. Up until now, a wildcard
alias could trump a alias not-matching-the-case of the incoming address.
This clarifies this behavior.
closes#1387
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.
1278: Limiter implementation r=kaiyou a=micw
## What type of PR?
(Feature, enhancement, bug-fix, documentation)
## What does this PR do?
Adds a custom limter based on the "limits" lirary that counts up on failed auths only
### Related issue(s)
- closes#1195
- closes#634
## Prerequistes
- [X] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Michael Wyraz <michael@wyraz.de>
Co-authored-by: micw <michael@wyraz.de>
1316: Fix the encoding of incoming user email and password r=mergify[bot] a=kaiyou
## What type of PR?
Bug fix
## What does this PR do?
As described in the changes, RFC2616 states that header should be considered ISO8859-1 in HTTP, which obviously nginx does not really care about when forwarding the password from SMTP authentication to the backend. Hence, we need to encode-then-decode passwords to get the proper value in case a special char is in there.
### Related issue(s)
- This fixes#1139
- This is also related to #1281
- This is also related to #1139
## 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>
Currently we are not able to offer our users a FTS experience after the
demise of lucene due to unfixed coredumps with musl/alpine.
We now add lucene, the only remaining maintained small/lean FTS plugin
for dovecot. It is quite simple to add to our stack: A two-stage docker
build is used to compile the fts plugin in the first stage, and copy
over only the resulting plugin-artifact to the second stage, which is
our usual dovecot container. Configuration is also minimal.
1299: Don't remove the address extension in postfix r=mergify[bot] a=RobertMe
## What type of PR?
Bugfix
## What does this PR do?
Currently when the mail address is looked up by Postfix (using the admin
part) the address extension is removed. This is due to the address
extension being removed to look up the user, and afterwards returning
the users mail address. But by not returning the mail address including
the address extension it also isn't part anymore in the LMTP
communication to Dovecot. So Dovecot doesn't know about the extension,
and in turn the address extension can't be used in Sieve mail filtering.
This change fixes that by returning the original address by just
concatinating the "localpart" and domain again when the user is found.
### Related issue(s)
Fixes#982
## 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.
- [ ] In case of feature or enhancement: documentation updated accordingly
- [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Robert Meijers <robert.meijers@gmail.com>
Currently when the mail address is looked up by Postfix (using the admin
part) the address extension is removed. This is due to the address
extension being removed to look up the user, and afterwards returning
the users mail address. But by not returning the mail address including
the address extension it also isn't part anymore in the LMTP
communication to Dovecot. So Dovecot doesn't know about the extension,
and in turn the address extension can't be used in Sieve mail filtering.
This change fixes that by returning the original address by just
concatinating the "localpart" and domain again when the user is found.
Fixes#982
985: Permit raspberry pi (and other architectures) builds r=mergify[bot] a=abondis
## What type of PR?
Enhancement
## What does this PR do?
Add an option to select base images and permit building for different CPU architectures.
### Related issue(s)
N/A
## Prerequistes
- [X] 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: Aurélien Bondis <aurelien.bondis@gmail.com>
Co-authored-by: Aurelien <aurelien.bondis@gmail.com>
1213: Bump werkzeug from 0.15.2 to 0.15.3 in /core/admin r=mergify[bot] a=dependabot[bot]
Bumps [werkzeug](https://github.com/pallets/werkzeug) from 0.15.2 to 0.15.3.
<details>
<summary>Release notes</summary>
*Sourced from [werkzeug's releases](https://github.com/pallets/werkzeug/releases).*
> ## 0.15.3
> * Blog: https://palletsprojects.com/blog/werkzeug-0-15-3-released/
> * Changes: https://werkzeug.palletsprojects.com/en/0.15.x/changes/#version-0-15-3
>
</details>
<details>
<summary>Changelog</summary>
*Sourced from [werkzeug's changelog](https://github.com/pallets/werkzeug/blob/master/CHANGES.rst).*
> Version 0.15.3
> --------------
>
> Released 2019-05-14
>
> - Properly handle multi-line header folding in development server in
> Python 2.7. (:issue:`1080`)
> - Restore the ``response`` argument to :exc:`~exceptions.Unauthorized`.
> (:pr:`1527`)
> - :exc:`~exceptions.Unauthorized` doesn't add the ``WWW-Authenticate``
> header if ``www_authenticate`` is not given. (:issue:`1516`)
> - The default URL converter correctly encodes bytes to string rather
> than representing them with ``b''``. (:issue:`1502`)
> - Fix the filename format string in
> :class:`~middleware.profiler.ProfilerMiddleware` to correctly handle
> float values. (:issue:`1511`)
> - Update :class:`~middleware.lint.LintMiddleware` to work on Python 3.
> (:issue:`1510`)
> - The debugger detects cycles in chained exceptions and does not time
> out in that case. (:issue:`1536`)
> - When running the development server in Docker, the debugger security
> pin is now unique per container.
</details>
<details>
<summary>Commits</summary>
- [`9b1123a`](9b1123a779) release version 0.15.3
- [`00bc43b`](00bc43b167) unique debugger pin in Docker containers
- [`2cbdf2b`](2cbdf2b022) Merge pull request [#1542](https://github-redirect.dependabot.com/pallets/werkzeug/issues/1542) from asottile/exceptions_arent_always_hashable
- [`0e669f6`](0e669f6be5) Fix unhashable exception types
- [`bdc17e4`](bdc17e4cd1) Merge pull request [#1540](https://github-redirect.dependabot.com/pallets/werkzeug/issues/1540) from pallets/break-tb-cycle
- [`44e38c2`](44e38c2985) break cycle in chained exceptions
- [`777500b`](777500b646) Merge pull request [#1518](https://github-redirect.dependabot.com/pallets/werkzeug/issues/1518) from NiklasMM/fix/1510_lint-middleware-python3-compa...
- [`e00c7c2`](e00c7c2ced) Make LintMiddleware Python 3 compatible and add tests
- [`d590cc7`](d590cc7cf2) Merge pull request [#1539](https://github-redirect.dependabot.com/pallets/werkzeug/issues/1539) from pallets/profiler-format
- [`0388fc9`](0388fc95e6) update filename_format for ProfilerMiddleware.
- Additional commits viewable in [compare view](https://github.com/pallets/werkzeug/compare/0.15.2...0.15.3)
</details>
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