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From: Stoiko Ivanov <s.ivanov@proxmox.com>
To: pmg-devel@lists.proxmox.com
Date: Thu, 17 Nov 2022 16:06:03 +0100
Message-Id: <20221117150611.253644-1-s.ivanov@proxmox.com>
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Subject: [pmg-devel] [PATCH pmg-api v2 0/8] ruledb - improve experience for
non-ascii tests and mails
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v1->v2:
* dropped already applied patches
* added a patch for one further glitch in ModField/Notify actions (when
parsing/replacing non-ascii characters) - patch 1/5+2/5
* added support for utf-8 data in the mailflow additionally for:
** quarantine API handlng
** user BL/WL (the GUI still needs adaptation to parse e-mail-addresses
more liberally - but else it seems to work)
** pmgqm (spamreports)
** statistics
still missing support for:
* LDAP
* Who Objects
huge thanks to Dominik for taking the time to review and test the v1!
original cover-letter for v1:
this patchseries partially fixes #2465 and #2541, two quite often reported
issues, which are causing quite a disappointing experience for users
in non-ascii only environments
the main assumption of the patches are:
* envelope addresses are either ascii or utf-8 (latter only with smtputf8)
* thus we can unconditionally de-/encode envelope addresses for database
results/lookups
* the matching in the rule-objects will see the relevant parts of the mail
as properly encoded perl-strings (with multi-byte characters - e.g. the
euro sign as \x{20ac} instead of \x{e2}\x{82}\x{ac})
(I did a bit of testing to verify them, by e.g. sending an ISO-8859-1
encoded mail and matching for an umlaut in the subject)
While going through the RuleDB classes I remembered, that we have a few
pieces of legacy objects (Attach, ReportSpam, Counter actions) there, and
went ahead with deprecating them (initially I simply deleted them, but
decided to be more cautious and just log the deprecation until 8.0, when
we can drop them explicitly). They cannot be instantiated currently (short
of a direct insert into the database) - but I don't know if they were ever
used in pre 5.0 times in their current form. - patch 2/5.
Out of scope of the series for now:
* utf-8 support in the LDAP subsystem (deployments with a configured LDAP
profile still won't be able to process smtputf8 mails) - mostly until I
get around to create test-environment with the appropriate schema for
having non-ascii mail-addresses
* Domain/Email objects - did not find the time to consider how to store
them most sensibly (puny-code, utf-8) and if the choice should be
carried over to all of our 'email' formats (it probably shouldn't)
patches 1/5 and 4/5 address 2 small bugs I ran into while testing
Given that I quite often miss a few fine points or use-cases I'd be very
grateful for some more experimenting/testing!
Stoiko Ivanov (8):
utils: return perl string from decode_rfc1522
ruledb: properly substitute prox_vars in headers
fix #2541 ruledb: encode relevant values as utf-8 in database
ruledb: encode e-mail addresses for syslog
partially fix #2465: handle smtputf8 addresses in the rule-system
quarantine: handle utf8 data
pmgqm: handle smtputf8 data
statistics: handle utf8 data.
src/PMG/API2/Quarantine.pm | 16 ++++----
src/PMG/CLI/pmgqm.pm | 24 ++++++------
src/PMG/HTMLMail.pm | 7 ++--
src/PMG/MailQueue.pm | 10 +++--
src/PMG/Quarantine.pm | 13 ++++---
src/PMG/RuleDB.pm | 24 ++++++++----
src/PMG/RuleDB/Accept.pm | 2 +-
src/PMG/RuleDB/BCC.pm | 23 +++++++++--
src/PMG/RuleDB/Block.pm | 2 +-
src/PMG/RuleDB/Disclaimer.pm | 2 +-
src/PMG/RuleDB/Group.pm | 4 +-
src/PMG/RuleDB/MatchField.pm | 8 +++-
src/PMG/RuleDB/MatchFilename.pm | 5 ++-
src/PMG/RuleDB/ModField.pm | 19 +++-------
src/PMG/RuleDB/Notify.pm | 24 +++++++++---
src/PMG/RuleDB/Quarantine.pm | 19 ++++++++--
src/PMG/RuleDB/Remove.pm | 20 +++++++---
src/PMG/RuleDB/Rule.pm | 2 +-
src/PMG/RuleDB/Spam.pm | 17 +++++----
src/PMG/RuleDB/WhoRegex.pm | 5 ++-
src/PMG/Statistic.pm | 67 ++++++++++++++++++++++++---------
src/PMG/Utils.pm | 39 ++++++++++++++++---
src/bin/pmg-smtp-filter | 7 ++--
23 files changed, 243 insertions(+), 116 deletions(-)
--
2.30.2