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Rspamd: more features (#3159)

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Georg Lauterbach 2023-03-18 23:32:48 +08:00 • committed by GitHub
parent e890ba46a3
commit e58dd1b95b
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20 changed files with 339 additions and 109 deletions
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55
target/scripts/startup/setup.d/security/rspamd.sh
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@ -7,10 +7,18 @@ function _setup_rspamd
_log 'warn' 'Rspamd integration is work in progress - expect (breaking) changes at any time'
_log 'debug' 'Enabling and configuring Rspamd'
__rspamd__preflight_checks
__rspamd__preflight_checks_and_setup
__rspamd__adjust_postfix_configuration
__rspamd__disable_default_modules
__rspamd__handle_modules_configuration
if [[ ${RSPAMD_LEARN} -eq 1 ]]
then
__rspamd__log 'debug' 'Enabling and configuring learning'
__rspamd__setup_learning
else
__rspamd__log 'debug' 'Learning is disabled'
fi
else
_log 'debug' 'Rspamd is disabled'
fi
@ -28,7 +36,7 @@ function __rspamd__log { _log "${1:-}" "(Rspamd setup) ${2:-}" ; }
#
# This will also check whether Amavis is enabled and emit a warning as
# we discourage users from running Amavis & Rspamd at the same time.
function __rspamd__preflight_checks
function __rspamd__preflight_checks_and_setup
{
touch /var/lib/rspamd/stats.ucl
@ -225,3 +233,46 @@ function __rspamd__handle_modules_configuration
done < <(_get_valid_lines_from_file "${RSPAMD_CUSTOM_COMMANDS_FILE}")
fi
}
# This function sets up intelligent learning of Junk, by
#
# 1. enabling auto-learn for the classifier-bayes module
# 2. setting up sieve scripts that detect when a user is moving e-mail
# from or to the "Junk" folder, and learning them as ham or spam.
function __rspamd__setup_learning
{
__rspamd__log 'debug' 'Setting up intelligent learning of spam and ham'
local SIEVE_PIPE_BIN_DIR='/usr/lib/dovecot/sieve-pipe'
ln -s "$(type -f -P rspamc)" "${SIEVE_PIPE_BIN_DIR}/rspamc"
sedfile -i -E 's|(mail_plugins =.*)|\1 imap_sieve|' /etc/dovecot/conf.d/20-imap.conf
sedfile -i -E '/^}/d' /etc/dovecot/conf.d/90-sieve.conf
cat >>/etc/dovecot/conf.d/90-sieve.conf << EOF
# From elsewhere to Junk folder
imapsieve_mailbox1_name = Junk
imapsieve_mailbox1_causes = COPY
imapsieve_mailbox1_before = file:${SIEVE_PIPE_BIN_DIR}/learn-spam.sieve
# From Junk folder to elsewhere
imapsieve_mailbox2_name = *
imapsieve_mailbox2_from = Junk
imapsieve_mailbox2_causes = COPY
imapsieve_mailbox2_before = file:${SIEVE_PIPE_BIN_DIR}/learn-ham.sieve
}
EOF
cat >"${SIEVE_PIPE_BIN_DIR}/learn-spam.sieve" << EOF
require ["vnd.dovecot.pipe", "copy", "imapsieve"];
pipe :copy "rspamc" ["-h", "127.0.0.1:11334", "learn_spam"];
EOF
cat >"${SIEVE_PIPE_BIN_DIR}/learn-ham.sieve" << EOF
require ["vnd.dovecot.pipe", "copy", "imapsieve"];
pipe :copy "rspamc" ["-h", "127.0.0.1:11334", "learn_ham"];
EOF
sievec "${SIEVE_PIPE_BIN_DIR}/learn-spam.sieve"
sievec "${SIEVE_PIPE_BIN_DIR}/learn-ham.sieve"
}