You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.4 KiB
65 lines
2.4 KiB
#!/bin/sh |
|
# Copyright (c) 2014-2019 The Bitcoin Core developers |
|
# Distributed under the MIT software license, see the accompanying |
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
export LC_ALL=C |
|
INPUT=$(cat /dev/stdin) |
|
VALID=false |
|
REVSIG=false |
|
IFS=' |
|
' |
|
if [ "$BITCOIN_VERIFY_COMMITS_ALLOW_SHA1" = 1 ]; then |
|
GPG_RES="$(printf '%s\n' "$INPUT" | gpg --trust-model always "$@" 2>/dev/null)" |
|
else |
|
# Note how we've disabled SHA1 with the --weak-digest option, disabling |
|
# signatures - including selfsigs - that use SHA1. While you might think that |
|
# collision attacks shouldn't be an issue as they'd be an attack on yourself, |
|
# in fact because what's being signed is a commit object that's |
|
# semi-deterministically generated by untrusted input (the pull-req) in theory |
|
# an attacker could construct a pull-req that results in a commit object that |
|
# they've created a collision for. Not the most likely attack, but preventing |
|
# it is pretty easy so we do so as a "belt-and-suspenders" measure. |
|
GPG_RES="" |
|
for LINE in $(gpg --version); do |
|
case "$LINE" in |
|
"gpg (GnuPG) 1.4.1"*|"gpg (GnuPG) 2.0."*) |
|
echo "Please upgrade to at least gpg 2.1.10 to check for weak signatures" > /dev/stderr |
|
GPG_RES="$(printf '%s\n' "$INPUT" | gpg --trust-model always "$@" 2>/dev/null)" |
|
;; |
|
# We assume if you're running 2.1+, you're probably running 2.1.10+ |
|
# gpg will fail otherwise |
|
# We assume if you're running 1.X, it is either 1.4.1X or 1.4.20+ |
|
# gpg will fail otherwise |
|
esac |
|
done |
|
[ "$GPG_RES" = "" ] && GPG_RES="$(printf '%s\n' "$INPUT" | gpg --trust-model always --weak-digest sha1 "$@" 2>/dev/null)" |
|
fi |
|
for LINE in $GPG_RES; do |
|
case "$LINE" in |
|
"[GNUPG:] VALIDSIG "*) |
|
while read KEY; do |
|
[ "${LINE#?GNUPG:? VALIDSIG * * * * * * * * * }" = "$KEY" ] && VALID=true |
|
done < ./contrib/verify-commits/trusted-keys |
|
;; |
|
"[GNUPG:] REVKEYSIG "*) |
|
[ "$BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG" != 1 ] && exit 1 |
|
REVSIG=true |
|
GOODREVSIG="[GNUPG:] GOODSIG ${LINE#* * *}" |
|
;; |
|
"[GNUPG:] EXPKEYSIG "*) |
|
[ "$BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG" != 1 ] && exit 1 |
|
REVSIG=true |
|
GOODREVSIG="[GNUPG:] GOODSIG ${LINE#* * *}" |
|
;; |
|
esac |
|
done |
|
if ! $VALID; then |
|
exit 1 |
|
fi |
|
if $VALID && $REVSIG; then |
|
printf '%s\n' "$INPUT" | gpg --trust-model always "$@" 2>/dev/null | grep "^\[GNUPG:\] \(NEWSIG\|SIG_ID\|VALIDSIG\)" |
|
echo "$GOODREVSIG" |
|
else |
|
printf '%s\n' "$INPUT" | gpg --trust-model always "$@" 2>/dev/null |
|
fi
|
|
|