blob: e515b3c7ffb41816cf2180cda4b62ebe9b4fd857 (
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#!/bin/sh
# shellcheck source=conf/default.conf
. "${0%/*}/../conf/default.conf"
if [ $# -ne 0 ]; then
>&2 echo ''
>&2 echo 'usage: interpret-mail'
>&2 echo ' Read email from stdin and interpret / execute body.'
>&2 echo ''
>&2 echo ' The email needs a valid hashcash-stamp (>=20 bits)'
>&2 echo ' and valid encryption to buildmaster@archlinux32.org,'
>&2 echo ' as well as a valid gpg-signature from anyone on the'
>&2 echo ' list in "conf/admin-gpg-keys". This entry also'
>&2 echo ' determines what instructions are allowed.'
>&2 echo ''
>&2 echo ' Possible instructions are:'
>&2 echo ''
>&2 echo ' - "block: <state-file> <reason>":'
>&2 echo ' Block the given packge for the given reason.'
>&2 echo ''
>&2 echo ' - "stabilize: <package-file>":'
>&2 echo ' Move the given package from testing to stable.'
>&2 echo ''
>&2 echo ' - "unblock: <state-file>":'
>&2 echo ' Unblock the given packge.'
>&2 echo ''
>&2 echo ' - ALL: all of the above (only valid in'
>&2 echo ' "conf/admin-gpg-keys")'
>&2 echo ''
exit 1
fi
log() {
# shellcheck disable=SC2059
>&2 printf "$@"
{
cat "${webserver_directory}/mail-log.html"
# shellcheck disable=SC2059
printf "$@" | \
sed '
s|$|<br>|
s|^|'"$(date)"': |
'
} | \
tail -n "${max_mail_log_lines}" | \
sponge "${webserver_directory}/mail-log.html"
}
log_from_file() {
>&2 cat "$@"
{
cat "${webserver_directory}/mail-log.html"
sed '
s|$|<br>|
s|^|'"$(date)"': |
' "$@"
} | \
tail -n "${max_mail_log_lines}" | \
sponge "${webserver_directory}/mail-log.html"
}
run_and_log_on_error() {
# shellcheck disable=SC2039
local err
err=0
"$@" 2> "${tmp_dir}/stderr" > "${tmp_dir}/stdout" || \
err=$?
if [ "${err}" -eq 0 ]; then
return 0
fi
log_from_file "${tmp_dir}/stderr" "${tmp_dir}/stdout"
if [ "${err}" -eq 1 ]; then
log '^ temporary error - I keep the message.\n'
exit 1
else
return 1
fi
}
tmp_dir=$(mktemp -d)
trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
cat > \
"${tmp_dir}/mail"
if ! hashcash -qXc -b 20 \
-d -f "${tmp_dir}/hashcash.db" \
-r 'archlinux32-buildmaster@eckner.net' \
-r 'buildmaster@archlinux32.org' < \
"${tmp_dir}/mail"; then
log 'Invalid stamp - ignoring this message.\n'
exit
fi
if ! sed -n '
/^-----BEGIN PGP MESSAGE-----\s*$/{
:a
/\n-----END PGP MESSAGE-----\s*$/!{
N
ba
}
p
}
' "${tmp_dir}/mail" | \
gpg --batch --status-file "${tmp_dir}/gpg-status" -q -d -o "${tmp_dir}/plain-content" > /dev/null 2>&1; then
log 'Invalid encryption/signature - ignoring this message.\n'
log_from_file "${tmp_dir}/gpg-status"
exit
fi
grep '^\[GNUPG:] VALIDSIG ' "${tmp_dir}/gpg-status" | \
cut -d' ' -f3 | \
sort -u > \
"${tmp_dir}/found-keys"
printf '%s\n' "${admin_gpg_keys}" | \
sort -k1,1 -u > \
"${tmp_dir}/admin-gpg-keys"
join -j 1 -o 2.2 \
"${tmp_dir}/found-keys" \
"${tmp_dir}/admin-gpg-keys" | \
tr ',' '\n' | \
sed 's|^ALL$|'"${possible_email_actions}"'|' | \
tr ' ,' '\n' | \
sort -u > \
"${tmp_dir}/allowed-actions"
if [ ! -s "${tmp_dir}/allowed-actions" ]; then
log 'No known signature found - I found:\n'
grep '^\[GNUPG:] VALIDSIG ' "${tmp_dir}/gpg-status" | \
cut -d' ' -f3 | \
sort -u | \
sed 's|^|> |' > \
"${tmp_dir}/log"
log_from_file "${tmp_dir}/log"
log 'ignoring this message.\n'
exit
fi
printf '\n\n' >> "${tmp_dir}/plain-content"
sed -n '
/^$/!b
N
s/^\n//
/^--/b
:a
N
/\n$/!ba
s/\n$//
p
' "${tmp_dir}/plain-content" |
sed '
:start_loop
$!{
N
bstart_loop
}
s/=\s*\n//g
s/:\s*\n/: /g
s/\n\(\S\+[^: ]\(\s\|\n\|$\)\)/ \1/g
' > \
"${tmp_dir}/raw-content"
sed -n "$(
while read -r action; do
if [ -z "${action}" ]; then
continue
fi
printf \
'/^%s:/{ s/^%s:\s*//; w %s/%s\n }\n' \
"${action}" \
"${action}" \
"${tmp_dir}" \
"${action}"
done < \
"${tmp_dir}/allowed-actions"
)" "${tmp_dir}/raw-content"
if [ -s "${tmp_dir}/block" ]; then
if run_and_log_on_error "${base_dir}/bin/block-package" "${tmp_dir}/block"; then
log 'Successfully blocked %s packages.\n' "$(wc -l < "${tmp_dir}/block")"
else
log 'There was an error while blocking the packages - ignoring this message.\n'
fi
fi
if [ -s "${tmp_dir}/stabilize" ]; then
sed -i '
/\.pkg\.tar\.xz$/!s/$/.pkg.tar.xz/
' "${tmp_dir}/stabilize"
if run_and_log_on_error "${base_dir}/bin/db-update" -b -f "${tmp_dir}/stabilize"; then
log 'Successfully stabilized %s packages.\n' "$(wc -l < "${tmp_dir}/stabilize")"
else
log 'There was an error while stabilizing the packages - ignoring this message.\n'
fi
fi
if [ -s "${tmp_dir}/unblock" ]; then
if run_and_log_on_error "${base_dir}/bin/block-package" -u "${tmp_dir}/unblock"; then
log 'Successfully unblocked %s packages.\n' "$(wc -l < "${tmp_dir}/unblock")"
else
log 'There was an error while unblocking the packages - ignoring this message.\n'
fi
fi
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