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-rwxr-xr-xt/t5534-push-signed.sh276
1 files changed, 276 insertions, 0 deletions
diff --git a/t/t5534-push-signed.sh b/t/t5534-push-signed.sh
new file mode 100755
index 000000000000..030331f1c51f
--- /dev/null
+++ b/t/t5534-push-signed.sh
@@ -0,0 +1,276 @@
+#!/bin/sh
+
+test_description='signed push'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-gpg.sh
+
+prepare_dst () {
+	rm -fr dst &&
+	test_create_repo dst &&
+
+	git push dst master:noop master:ff master:noff
+}
+
+test_expect_success setup '
+	# master, ff and noff branches pointing at the same commit
+	test_tick &&
+	git commit --allow-empty -m initial &&
+
+	git checkout -b noop &&
+	git checkout -b ff &&
+	git checkout -b noff &&
+
+	# noop stays the same, ff advances, noff rewrites
+	test_tick &&
+	git commit --allow-empty --amend -m rewritten &&
+	git checkout ff &&
+
+	test_tick &&
+	git commit --allow-empty -m second
+'
+
+test_expect_success 'unsigned push does not send push certificate' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	# discard the update list
+	cat >/dev/null
+	# record the push certificate
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi
+	EOF
+
+	git push dst noop ff +noff &&
+	! test -f dst/push-cert
+'
+
+test_expect_success 'talking with a receiver without push certificate support' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	# discard the update list
+	cat >/dev/null
+	# record the push certificate
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi
+	EOF
+
+	git push dst noop ff +noff &&
+	! test -f dst/push-cert
+'
+
+test_expect_success 'push --signed fails with a receiver without push certificate support' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	test_must_fail git push --signed dst noop ff +noff 2>err &&
+	test_i18ngrep "the receiving end does not support" err
+'
+
+test_expect_success 'push --signed=1 is accepted' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	test_must_fail git push --signed=1 dst noop ff +noff 2>err &&
+	test_i18ngrep "the receiving end does not support" err
+'
+
+test_expect_success GPG 'no certificate for a signed push with no update' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi
+	EOF
+	git push dst noop &&
+	! test -f dst/push-cert
+'
+
+test_expect_success GPG 'signed push sends push certificate' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	git -C dst config receive.certnonceseed sekrit &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	# discard the update list
+	cat >/dev/null
+	# record the push certificate
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi &&
+
+	cat >../push-cert-status <<E_O_F
+	SIGNER=${GIT_PUSH_CERT_SIGNER-nobody}
+	KEY=${GIT_PUSH_CERT_KEY-nokey}
+	STATUS=${GIT_PUSH_CERT_STATUS-nostatus}
+	NONCE_STATUS=${GIT_PUSH_CERT_NONCE_STATUS-nononcestatus}
+	NONCE=${GIT_PUSH_CERT_NONCE-nononce}
+	E_O_F
+
+	EOF
+
+	git push --signed dst noop ff +noff &&
+
+	(
+		cat <<-\EOF &&
+		SIGNER=C O Mitter <committer@example.com>
+		KEY=13B6F51ECDDE430D
+		STATUS=G
+		NONCE_STATUS=OK
+		EOF
+		sed -n -e "s/^nonce /NONCE=/p" -e "/^$/q" dst/push-cert
+	) >expect &&
+
+	noop=$(git rev-parse noop) &&
+	ff=$(git rev-parse ff) &&
+	noff=$(git rev-parse noff) &&
+	grep "$noop $ff refs/heads/ff" dst/push-cert &&
+	grep "$noop $noff refs/heads/noff" dst/push-cert &&
+	test_cmp expect dst/push-cert-status
+'
+
+test_expect_success GPG 'inconsistent push options in signed push not allowed' '
+	# First, invoke receive-pack with dummy input to obtain its preamble.
+	prepare_dst &&
+	git -C dst config receive.certnonceseed sekrit &&
+	git -C dst config receive.advertisepushoptions 1 &&
+	printf xxxx | test_might_fail git receive-pack dst >preamble &&
+
+	# Then, invoke push. Simulate a receive-pack that sends the preamble we
+	# obtained, followed by a dummy packet.
+	write_script myscript <<-\EOF &&
+		cat preamble &&
+		printf xxxx &&
+		cat >push
+	EOF
+	test_might_fail git push --push-option="foo" --push-option="bar" \
+		--receive-pack="\"$(pwd)/myscript\"" --signed dst --delete ff &&
+
+	# Replay the push output on a fresh dst, checking that ff is truly
+	# deleted.
+	prepare_dst &&
+	git -C dst config receive.certnonceseed sekrit &&
+	git -C dst config receive.advertisepushoptions 1 &&
+	git receive-pack dst <push &&
+	test_must_fail git -C dst rev-parse ff &&
+
+	# Tweak the push output to make the push option outside the cert
+	# different, then replay it on a fresh dst, checking that ff is not
+	# deleted.
+	perl -pe "s/([^ ])bar/\$1baz/" push >push.tweak &&
+	prepare_dst &&
+	git -C dst config receive.certnonceseed sekrit &&
+	git -C dst config receive.advertisepushoptions 1 &&
+	git receive-pack dst <push.tweak >out &&
+	git -C dst rev-parse ff &&
+	grep "inconsistent push options" out
+'
+
+test_expect_success GPG 'fail without key and heed user.signingkey' '
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	git -C dst config receive.certnonceseed sekrit &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	# discard the update list
+	cat >/dev/null
+	# record the push certificate
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi &&
+
+	cat >../push-cert-status <<E_O_F
+	SIGNER=${GIT_PUSH_CERT_SIGNER-nobody}
+	KEY=${GIT_PUSH_CERT_KEY-nokey}
+	STATUS=${GIT_PUSH_CERT_STATUS-nostatus}
+	NONCE_STATUS=${GIT_PUSH_CERT_NONCE_STATUS-nononcestatus}
+	NONCE=${GIT_PUSH_CERT_NONCE-nononce}
+	E_O_F
+
+	EOF
+
+	test_config user.email hasnokey@nowhere.com &&
+	(
+		sane_unset GIT_COMMITTER_EMAIL &&
+		test_must_fail git push --signed dst noop ff +noff
+	) &&
+	test_config user.signingkey $GIT_COMMITTER_EMAIL &&
+	git push --signed dst noop ff +noff &&
+
+	(
+		cat <<-\EOF &&
+		SIGNER=C O Mitter <committer@example.com>
+		KEY=13B6F51ECDDE430D
+		STATUS=G
+		NONCE_STATUS=OK
+		EOF
+		sed -n -e "s/^nonce /NONCE=/p" -e "/^$/q" dst/push-cert
+	) >expect &&
+
+	noop=$(git rev-parse noop) &&
+	ff=$(git rev-parse ff) &&
+	noff=$(git rev-parse noff) &&
+	grep "$noop $ff refs/heads/ff" dst/push-cert &&
+	grep "$noop $noff refs/heads/noff" dst/push-cert &&
+	test_cmp expect dst/push-cert-status
+'
+
+test_expect_success GPGSM 'fail without key and heed user.signingkey x509' '
+	test_config gpg.format x509 &&
+	prepare_dst &&
+	mkdir -p dst/.git/hooks &&
+	git -C dst config receive.certnonceseed sekrit &&
+	write_script dst/.git/hooks/post-receive <<-\EOF &&
+	# discard the update list
+	cat >/dev/null
+	# record the push certificate
+	if test -n "${GIT_PUSH_CERT-}"
+	then
+		git cat-file blob $GIT_PUSH_CERT >../push-cert
+	fi &&
+
+	cat >../push-cert-status <<E_O_F
+	SIGNER=${GIT_PUSH_CERT_SIGNER-nobody}
+	KEY=${GIT_PUSH_CERT_KEY-nokey}
+	STATUS=${GIT_PUSH_CERT_STATUS-nostatus}
+	NONCE_STATUS=${GIT_PUSH_CERT_NONCE_STATUS-nononcestatus}
+	NONCE=${GIT_PUSH_CERT_NONCE-nononce}
+	E_O_F
+
+	EOF
+
+	test_config user.email hasnokey@nowhere.com &&
+	test_config user.signingkey "" &&
+	(
+		sane_unset GIT_COMMITTER_EMAIL &&
+		test_must_fail git push --signed dst noop ff +noff
+	) &&
+	test_config user.signingkey $GIT_COMMITTER_EMAIL &&
+	git push --signed dst noop ff +noff &&
+
+	(
+		cat <<-\EOF &&
+		SIGNER=/CN=C O Mitter/O=Example/SN=C O/GN=Mitter
+		KEY=
+		STATUS=G
+		NONCE_STATUS=OK
+		EOF
+		sed -n -e "s/^nonce /NONCE=/p" -e "/^$/q" dst/push-cert
+	) >expect.in &&
+	key=$(cat "${GNUPGHOME}/trustlist.txt" | cut -d" " -f1 | tr -d ":") &&
+	sed -e "s/^KEY=/KEY=${key}/" expect.in >expect &&
+
+	noop=$(git rev-parse noop) &&
+	ff=$(git rev-parse ff) &&
+	noff=$(git rev-parse noff) &&
+	grep "$noop $ff refs/heads/ff" dst/push-cert &&
+	grep "$noop $noff refs/heads/noff" dst/push-cert &&
+	test_cmp expect dst/push-cert-status
+'
+
+test_done