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lib-gpg.sh « t - git.kernel.org/pub/scm/git/git.git - Unnamed repository; edit this file 'description' to name the repository.
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# We always set GNUPGHOME, even if no usable GPG was found, as
#
# - It does not hurt, and
#
# - we cannot set global environment variables in lazy prereqs because they are
#   executed in an eval'ed subshell that changes the working directory to a
#   temporary one.

GNUPGHOME="$PWD/gpghome"
export GNUPGHOME

test_lazy_prereq GPG '
	gpg_version=$(gpg --version 2>&1)
	test $? != 127 || exit 1

	# As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
	# the gpg version 1.0.6 did not parse trust packets correctly, so for
	# that version, creation of signed tags using the generated key fails.
	case "$gpg_version" in
	"gpg (GnuPG) 1.0.6"*)
		say "Your version of gpg (1.0.6) is too buggy for testing"
		exit 1
		;;
	*)
		# Available key info:
		# * Type DSA and Elgamal, size 2048 bits, no expiration date,
		#   name and email: C O Mitter <committer@example.com>
		# * Type RSA, size 2048 bits, no expiration date,
		#   name and email: Eris Discordia <discord@example.net>
		# No password given, to enable non-interactive operation.
		# To generate new key:
		#	gpg --homedir /tmp/gpghome --gen-key
		# To write armored exported key to keyring:
		#	gpg --homedir /tmp/gpghome --export-secret-keys \
		#		--armor 0xDEADBEEF >> lib-gpg/keyring.gpg
		#	gpg --homedir /tmp/gpghome --export \
		#		--armor 0xDEADBEEF >> lib-gpg/keyring.gpg
		# To export ownertrust:
		#	gpg --homedir /tmp/gpghome --export-ownertrust \
		#		> lib-gpg/ownertrust
		mkdir "$GNUPGHOME" &&
		chmod 0700 "$GNUPGHOME" &&
		(gpgconf --kill gpg-agent || : ) &&
		gpg --homedir "${GNUPGHOME}" --import \
			"$TEST_DIRECTORY"/lib-gpg/keyring.gpg &&
		gpg --homedir "${GNUPGHOME}" --import-ownertrust \
			"$TEST_DIRECTORY"/lib-gpg/ownertrust &&
		gpg --homedir "${GNUPGHOME}" </dev/null >/dev/null \
			--sign -u committer@example.com
		;;
	esac
'

test_lazy_prereq GPGSM '
	test_have_prereq GPG &&
	# Available key info:
	# * see t/lib-gpg/gpgsm-gen-key.in
	# To generate new certificate:
	#  * no passphrase
	#	gpgsm --homedir /tmp/gpghome/ \
	#		-o /tmp/gpgsm.crt.user \
	#		--generate-key \
	#		--batch t/lib-gpg/gpgsm-gen-key.in
	# To import certificate:
	#	gpgsm --homedir /tmp/gpghome/ \
	#		--import /tmp/gpgsm.crt.user
	# To export into a .p12 we can later import:
	#	gpgsm --homedir /tmp/gpghome/ \
	#		-o t/lib-gpg/gpgsm_cert.p12 \
	#		--export-secret-key-p12 "committer@example.com"
	echo | gpgsm --homedir "${GNUPGHOME}" \
		--passphrase-fd 0 --pinentry-mode loopback \
		--import "$TEST_DIRECTORY"/lib-gpg/gpgsm_cert.p12 &&

	gpgsm --homedir "${GNUPGHOME}" -K |
	grep fingerprint: |
	cut -d" " -f4 |
	tr -d "\\n" >"${GNUPGHOME}/trustlist.txt" &&

	echo " S relax" >>"${GNUPGHOME}/trustlist.txt" &&
	echo hello | gpgsm --homedir "${GNUPGHOME}" >/dev/null \
	       -u committer@example.com -o /dev/null --sign -
'

test_lazy_prereq RFC1991 '
	test_have_prereq GPG &&
	echo | gpg --homedir "${GNUPGHOME}" -b --rfc1991 >/dev/null
'

GPGSSH_KEY_PRIMARY="${GNUPGHOME}/ed25519_ssh_signing_key"
GPGSSH_KEY_SECONDARY="${GNUPGHOME}/rsa_2048_ssh_signing_key"
GPGSSH_KEY_UNTRUSTED="${GNUPGHOME}/untrusted_ssh_signing_key"
GPGSSH_KEY_WITH_PASSPHRASE="${GNUPGHOME}/protected_ssh_signing_key"
GPGSSH_KEY_PASSPHRASE="super_secret"
GPGSSH_ALLOWED_SIGNERS="${GNUPGHOME}/ssh.all_valid.allowedSignersFile"

GPGSSH_GOOD_SIGNATURE_TRUSTED='Good "git" signature for'
GPGSSH_GOOD_SIGNATURE_UNTRUSTED='Good "git" signature with'
GPGSSH_KEY_NOT_TRUSTED="No principal matched"
GPGSSH_BAD_SIGNATURE="Signature verification failed"

test_lazy_prereq GPGSSH '
	ssh_version=$(ssh-keygen -Y find-principals -n "git" 2>&1)
	test $? != 127 || exit 1
	echo $ssh_version | grep -q "find-principals:missing signature file"
	test $? = 0 || exit 1;

	# some broken versions of ssh-keygen segfault on find-principals;
	# avoid testing with them.
	ssh-keygen -Y find-principals -f /dev/null -s /dev/null
	test $? = 139 && exit 1

	mkdir -p "${GNUPGHOME}" &&
	chmod 0700 "${GNUPGHOME}" &&
	(setfacl -k "${GNUPGHOME}" 2>/dev/null || true) &&
	ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_PRIMARY}" >/dev/null &&
	echo "\"principal with number 1\" $(cat "${GPGSSH_KEY_PRIMARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" &&
	ssh-keygen -t rsa -b 2048 -N "" -C "git rsa2048 key" -f "${GPGSSH_KEY_SECONDARY}" >/dev/null &&
	echo "\"principal with number 2\" $(cat "${GPGSSH_KEY_SECONDARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" &&
	ssh-keygen -t ed25519 -N "${GPGSSH_KEY_PASSPHRASE}" -C "git ed25519 encrypted key" -f "${GPGSSH_KEY_WITH_PASSPHRASE}" >/dev/null &&
	echo "\"principal with number 3\" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" &&
	ssh-keygen -t ed25519 -N "" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null
'

sanitize_pgp() {
	perl -ne '
		/^-----END PGP/ and $in_pgp = 0;
		print unless $in_pgp;
		/^-----BEGIN PGP/ and $in_pgp = 1;
	'
}