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add gpgvnoexpkeysig

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Johannes Schauer Marin Rodrigues 2021-09-09 22:59:54 +02:00
parent 6851cd7cb4
commit 5b0bb46421
Signed by: josch
GPG key ID: F2CBA5C78FBD83E1
2 changed files with 49 additions and 0 deletions
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48
gpgvnoexpkeysig Executable file
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@ -0,0 +1,48 @@
#!/bin/sh
#
# This script is in the public domain
#
# This is a wrapper around gpgv as invoked by apt. It turns EXPKEYSIG results
# from gpgv into GOODSIG results. This is necessary for apt to access very old
# timestamps from snapshot.debian.org for which the GPG key is already expired:
#
# Get:1 http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease [242 kB]
# Err:1 http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease
# The following signatures were invalid: EXPKEYSIG 8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy) <ftpmaster@debian.org>
# Reading package lists...
# W: GPG error: http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease: The following signatures were invalid: EXPKEYSIG 8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy) <ftpmaster@debian.org>
# E: The repository 'http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease' is not signed.
#
# To use this script, call apt with
#
# -o Apt::Key::gpgvcommand=/usr/libexec/mmdebstrap/gpgvnoexpkeysig
#
# Scripts doing similar things can be found here:
#
# * debuerreotype as /usr/share/debuerreotype/scripts/.gpgv-ignore-expiration.sh
# * derivative census: salsa.d.o/deriv-team/census/-/blob/master/bin/fakegpgv
set -eu
find_gpgv_status_fd() {
while [ "$#" -gt 0 ]; do
if [ "$1" = '--status-fd' ]; then
echo "$2"
return 0
fi
shift
done
# default fd is stdout
echo 1
}
GPGSTATUSFD="$(find_gpgv_status_fd "$@")"
case $GPGSTATUSFD in
''|*[!0-9]*)
echo "invalid --status-fd argument" >&2
exit 1
;;
esac
# we need eval because we cannot redirect a variable fd
eval 'exec gpgv "$@" '"$GPGSTATUSFD"'>&1 | sed "s/^\[GNUPG:\] EXPKEYSIG /[GNUPG:] GOODSIG /" >&'"$GPGSTATUSFD"

1
mmdebstrap
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@ -6135,6 +6135,7 @@ the file will be appended to 99mmdebstrap verbatim.
Example: This is necessary for allowing old timestamps from snapshot.debian.org Example: This is necessary for allowing old timestamps from snapshot.debian.org
--aptopt='Acquire::Check-Valid-Until "false"' --aptopt='Acquire::Check-Valid-Until "false"'
--aptopt='Apt::Key::gpgvcommand "/usr/libexec/mmdebstrap/gpgvnoexpkeysig"'
Example: Settings controlling download of package description translations Example: Settings controlling download of package description translations