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Check gpg version before setting --weak-digest

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This commit is contained in:
Matt Corallo 2017-03-06 16:13:40 -05:00
parent 72fb5158b1
commit f20e664f40
2 changed files with 16 additions and 4 deletions
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18
contrib/verify-commits/gpg.sh
View File

@ -19,8 +19,20 @@ else
# an attacker could construct a pull-req that results in a commit object that # 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 # 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. # it is pretty easy so we do so as a "belt-and-suspenders" measure.
GPG_RES=""
GPG_RES="$(echo "$INPUT" | gpg --trust-model always --weak-digest sha1 "$@" 2>/dev/null)" for LINE in "$(gpg --version)"; do
case "$LINE" in
"gpg (GnuPG) 1.4.1"*|"gpg (GnuPG) 2.0."*)
echo "Please upgrade to at least gpg 2.1.10 to check for weak signatures" > /dev/stderr
GPG_RES="$(echo "$INPUT" | gpg --trust-model always "$@" 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
[ "$GPG_RES" = "" ] && GPG_RES="$(echo "$INPUT" | gpg --trust-model always --weak-digest sha1 "$@" 2>/dev/null)"
fi fi
for LINE in $(echo "$GPG_RES"); do for LINE in $(echo "$GPG_RES"); do
case "$LINE" in case "$LINE" in
@ -40,7 +52,7 @@ if ! $VALID; then
exit 1 exit 1
fi fi
if $VALID && $REVSIG; then if $VALID && $REVSIG; then
echo "$INPUT" | gpg --trust-model always "$@" | grep "\[GNUPG:\] \(NEWSIG\|SIG_ID\|VALIDSIG\)" 2>/dev/null echo "$INPUT" | gpg --trust-model always "$@" 2>/dev/null | grep "\[GNUPG:\] \(NEWSIG\|SIG_ID\|VALIDSIG\)"
echo "$GOODREVSIG" echo "$GOODREVSIG"
else else
echo "$INPUT" | gpg --trust-model always "$@" 2>/dev/null echo "$INPUT" | gpg --trust-model always "$@" 2>/dev/null

2
contrib/verify-commits/verify-commits.sh
View File

@ -43,7 +43,7 @@ IS_SIGNED () {
export BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG=0 export BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG=0
fi fi
if ! git -c "gpg.program=${DIR}/gpg.sh" verify-commit $1 > /dev/null 2>&1; then if ! git -c "gpg.program=${DIR}/gpg.sh" verify-commit $1 > /dev/null; then
return 1; return 1;
fi fi