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|
#!/bin/sh
# --- Command line
refname=${1}
oldrev=${2}
newrev=${3}
# --- Safety check
if [ -z "${GIT_DIR}" ]; then
echo "Don't run this script from the command line." >&2
echo " (if you want, you could supply GIT_DIR then run" >&2
echo " ${0} <ref> <oldrev> <newrev>)" >&2
exit 1
fi
if [ -z "${refname}" -o -z "${oldrev}" -o -z "${newrev}" ]; then
echo "usage: ${0} <ref> <oldrev> <newrev>" >&2
exit 1
fi
VERIFY_SIGS=$(git config --get gentoo.verify-signatures)
: ${VERIFY_SIGS:=gentoo-devs}
case ${VERIFY_SIGS} in
gentoo-devs)
if [[ ${GL_USER} != *@gentoo.org ]]; then
echo "*** Pusher address is not @gentoo.org" >&2
echo " (it is ${GL_USER})" >&2
echo "*** Please report this to infra" >&2
exit 1
fi
# find key fingerprints in LDAP
KEY_FPS=$(ldapsearch "uid=${GL_USER%@gentoo.org}" -D '' -Z -LLL \
gpgfingerprint -o ldif-wrap=no | \
sed -n -e '/^gpgfingerprint: /{s/^.*://;s/ //g;p}')
# verify GLEP63 compliance
GOOD_KEYS=()
HAVE_NONCOMPLIANT=no
for K in ${KEY_FPS}; do
LC_CTYPE=en_US.UTF-8 \
glep63-check -S glep63-2 -k "${K}" &&
GOOD_KEYS+=( "${K}" ) ||
HAVE_NONCOMPLIANT=yes
done
if [[ ${#GOOD_KEYS[@]} -eq 0 ]]; then
echo "*** None of your keys comply with GLEP 63." >&2
echo " Please update the keys into conformance if you wish to continue" >&2
echo " using them. If not, please remove unused keys from LDAP." >&2
exit 1
elif [[ ${HAVE_NONCOMPLIANT} == yes ]]; then
echo "*** Warning. One or more OpenPGP keys do not comply with GLEP 63." >&2
echo " Please update the keys into conformance if you wish to continue" >&2
echo " using them. If not, please remove unused keys from LDAP." >&2
fi
# create a dedicated GNUPGHOME
TMPHOME=$(mktemp -d)
trap 'rm -rf "${TMPHOME}"' EXIT
# transfer the keys
gpg -q --export "${GOOD_KEYS[@]}" | GNUPGHOME=${TMPHOME} gpg -q --import
# use new GNUGPHOME to restrict to dev's keys
export GNUPGHOME=${TMPHOME}
;;
no)
;;
*)
echo "Invalid value of gentoo.verify-signatures" >&2
exit 1
esac
# --- Check types
# if $newrev is 0000...0000, it's a commit to delete a ref.
zero="0000000000000000000000000000000000000000"
case ${refname} in
refs/heads/master)
IFS='
'
# verify that everything on the left-hand side of commit history is signed
# (further branches of merges can be unsigned)
revs=$(git rev-list --first-parent "${newrev}" "^${oldrev}")
for r in ${revs}; do
committer=$(git show -q --pretty=format:'%ce' "${r}")
if [[ ${VERIFY_SIGS} == gentoo-devs && ${committer} != *@gentoo.org ]]; then
echo "*** Committer address is not @gentoo.org, refusing"
exit 1
fi
signst=$(git show -q --pretty=format:'%G?' "${r}")
case ${VERIFY_SIGS} in
gentoo-devs)
# gentoo dev signatures must be Good
[[ ${signst} == G ]] && continue
;;
no)
# additionally skip untrusted/impossible to check
# when verification is disabled
[[ ${signst} == [GUE] ]] && continue
;;
esac
# error reporting
case ${signst} in
U)
echo "*** Untrusted signature on ${r}, refusing"
exit 1
;;
B)
echo "*** Bad signature on ${r}, refusing"
exit 1
;;
N)
echo "*** No signature on ${r}, refusing"
exit 1
;;
E)
echo "*** Signature cannot be checked on ${r}, refusing"
exit 1
;;
*)
echo "*** Unknown signature status '${signst}', refusing"
exit 1
;;
esac
done
;;
*)
;;
esac
# --- Finished
exit 0
|
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