34959d80db
Many test scripts use hash-object to create malformed objects to see how we handle the results in various commands. In some cases we already have to use "hash-object --literally", because it does some rudimentary quality checks. But let's use "--literally" more consistently to future-proof these tests against hash-object learning to be more careful. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
463 lines
16 KiB
Bash
Executable File
463 lines
16 KiB
Bash
Executable File
#!/bin/sh
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test_description='ssh signed commit tests'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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GNUPGHOME_NOT_USED=$GNUPGHOME
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. "$TEST_DIRECTORY/lib-gpg.sh"
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test_expect_success GPGSSH 'create signed commits' '
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test_oid_cache <<-\EOF &&
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header sha1:gpgsig
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header sha256:gpgsig-sha256
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EOF
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test_when_finished "test_unconfig commit.gpgsign" &&
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test_config gpg.format ssh &&
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test_config user.signingkey "${GPGSSH_KEY_PRIMARY}" &&
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echo 1 >file && git add file &&
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test_tick && git commit -S -m initial &&
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git tag initial &&
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git branch side &&
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echo 2 >file && test_tick && git commit -a -S -m second &&
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git tag second &&
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git checkout side &&
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echo 3 >elif && git add elif &&
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test_tick && git commit -m "third on side" &&
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git checkout main &&
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test_tick && git merge -S side &&
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git tag merge &&
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echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
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git tag fourth-unsigned &&
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test_tick && git commit --amend -S -m "fourth signed" &&
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git tag fourth-signed &&
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git config commit.gpgsign true &&
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echo 5 >file && test_tick && git commit -a -m "fifth signed" &&
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git tag fifth-signed &&
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git config commit.gpgsign false &&
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echo 6 >file && test_tick && git commit -a -m "sixth" &&
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git tag sixth-unsigned &&
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git config commit.gpgsign true &&
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echo 7 >file && test_tick && git commit -a -m "seventh" --no-gpg-sign &&
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git tag seventh-unsigned &&
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test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
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git tag seventh-signed &&
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echo 8 >file && test_tick && git commit -a -m eighth -S"${GPGSSH_KEY_UNTRUSTED}" &&
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git tag eighth-signed-alt &&
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# commit.gpgsign is still on but this must not be signed
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echo 9 | git commit-tree HEAD^{tree} >oid &&
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test_line_count = 1 oid &&
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git tag ninth-unsigned $(cat oid) &&
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# explicit -S of course must sign.
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echo 10 | git commit-tree -S HEAD^{tree} >oid &&
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test_line_count = 1 oid &&
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git tag tenth-signed $(cat oid) &&
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# --gpg-sign[=<key-id>] must sign.
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echo 11 | git commit-tree --gpg-sign HEAD^{tree} >oid &&
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test_line_count = 1 oid &&
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git tag eleventh-signed $(cat oid) &&
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echo 12 | git commit-tree --gpg-sign="${GPGSSH_KEY_UNTRUSTED}" HEAD^{tree} >oid &&
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test_line_count = 1 oid &&
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git tag twelfth-signed-alt $(cat oid) &&
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echo 13>file && test_tick && git commit -a -m thirteenth -S"${GPGSSH_KEY_ECDSA}" &&
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git tag thirteenth-signed-ecdsa
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'
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test_expect_success GPGSSH 'sign commits using literal public keys with ssh-agent' '
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test_when_finished "test_unconfig commit.gpgsign" &&
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test_config gpg.format ssh &&
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eval $(ssh-agent) &&
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test_when_finished "kill ${SSH_AGENT_PID}" &&
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ssh-add "${GPGSSH_KEY_PRIMARY}" &&
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echo 1 >file && git add file &&
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git commit -a -m rsa-inline -S"$(cat "${GPGSSH_KEY_PRIMARY}.pub")" &&
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echo 2 >file &&
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test_config user.signingkey "$(cat "${GPGSSH_KEY_PRIMARY}.pub")" &&
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git commit -a -m rsa-config -S &&
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ssh-add "${GPGSSH_KEY_ECDSA}" &&
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echo 3 >file &&
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git commit -a -m ecdsa-inline -S"key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" &&
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echo 4 >file &&
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test_config user.signingkey "key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" &&
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git commit -a -m ecdsa-config -S
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'
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test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed commits with keys having defined lifetimes' '
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test_when_finished "test_unconfig commit.gpgsign" &&
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test_config gpg.format ssh &&
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echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" &&
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git tag expired-signed &&
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echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" &&
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git tag notyetvalid-signed &&
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echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" &&
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git tag timeboxedvalid-signed &&
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echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" &&
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git tag timeboxedinvalid-signed
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'
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test_expect_success GPGSSH 'verify and show signatures' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_config gpg.mintrustlevel UNDEFINED &&
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(
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for commit in initial second merge fourth-signed \
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fifth-signed sixth-signed seventh-signed tenth-signed \
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eleventh-signed
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do
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git verify-commit $commit &&
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git show --pretty=short --show-signature $commit >actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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echo $commit OK || exit 1
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done
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) &&
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(
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for commit in merge^2 fourth-unsigned sixth-unsigned \
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seventh-unsigned ninth-unsigned
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do
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test_must_fail git verify-commit $commit &&
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git show --pretty=short --show-signature $commit >actual &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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echo $commit OK || exit 1
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done
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) &&
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(
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for commit in eighth-signed-alt twelfth-signed-alt
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do
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git show --pretty=short --show-signature $commit >actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_UNTRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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grep "${GPGSSH_KEY_NOT_TRUSTED}" actual &&
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echo $commit OK || exit 1
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done
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)
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'
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test_expect_success GPGSSH 'verify-commit exits failure on untrusted signature' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_must_fail git verify-commit eighth-signed-alt 2>actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_UNTRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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grep "${GPGSSH_KEY_NOT_TRUSTED}" actual
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'
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test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure on expired signature key' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_must_fail git verify-commit expired-signed 2>actual &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
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'
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test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure on not yet valid signature key' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_must_fail git verify-commit notyetvalid-signed 2>actual &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
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'
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test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit succeeds with commit date and key validity matching' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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git verify-commit timeboxedvalid-signed 2>actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual
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'
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test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure with commit date outside of key validity' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_must_fail git verify-commit timeboxedinvalid-signed 2>actual &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
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'
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test_expect_success GPGSSH 'verify-commit exits success with matching minTrustLevel' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_config gpg.minTrustLevel fully &&
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git verify-commit sixth-signed
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'
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test_expect_success GPGSSH 'verify-commit exits success with low minTrustLevel' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_config gpg.minTrustLevel marginal &&
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git verify-commit sixth-signed
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'
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test_expect_success GPGSSH 'verify-commit exits failure with high minTrustLevel' '
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test_config gpg.minTrustLevel ultimate &&
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test_must_fail git verify-commit eighth-signed-alt
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'
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test_expect_success GPGSSH 'verify signatures with --raw' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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(
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for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
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do
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git verify-commit --raw $commit 2>actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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echo $commit OK || exit 1
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done
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) &&
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(
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for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
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do
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test_must_fail git verify-commit --raw $commit 2>actual &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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echo $commit OK || exit 1
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done
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) &&
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(
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for commit in eighth-signed-alt
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do
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test_must_fail git verify-commit --raw $commit 2>actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_UNTRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual &&
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echo $commit OK || exit 1
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done
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)
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'
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test_expect_success GPGSSH 'proper header is used for hash algorithm' '
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git cat-file commit fourth-signed >output &&
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grep "^$(test_oid header) -----BEGIN SSH SIGNATURE-----" output
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'
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test_expect_success GPGSSH 'show signed commit with signature' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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git show -s initial >commit &&
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git show -s --show-signature initial >show &&
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git verify-commit -v initial >verify.1 2>verify.2 &&
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git cat-file commit initial >cat &&
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grep -v -e "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" -e "Warning: " show >show.commit &&
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grep -e "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" -e "Warning: " show >show.gpg &&
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grep -v "^ " cat | grep -v "^gpgsig.* " >cat.commit &&
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test_cmp show.commit commit &&
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test_cmp show.gpg verify.2 &&
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test_cmp cat.commit verify.1
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'
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test_expect_success GPGSSH 'detect fudged signature' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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git cat-file commit seventh-signed >raw &&
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sed -e "s/^seventh/7th forged/" raw >forged1 &&
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git hash-object -w -t commit forged1 >forged1.commit &&
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test_must_fail git verify-commit $(cat forged1.commit) &&
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git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
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grep "${GPGSSH_BAD_SIGNATURE}" actual1 &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual1 &&
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! grep "${GPGSSH_GOOD_SIGNATURE_UNTRUSTED}" actual1
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'
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test_expect_success GPGSSH 'detect fudged signature with NUL' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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git cat-file commit seventh-signed >raw &&
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cat raw >forged2 &&
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echo Qwik | tr "Q" "\000" >>forged2 &&
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git hash-object --literally -w -t commit forged2 >forged2.commit &&
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test_must_fail git verify-commit $(cat forged2.commit) &&
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git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
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grep "${GPGSSH_BAD_SIGNATURE}" actual2 &&
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! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual2
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'
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test_expect_success GPGSSH 'amending already signed commit' '
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test_config gpg.format ssh &&
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test_config user.signingkey "${GPGSSH_KEY_PRIMARY}" &&
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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git checkout -f fourth-signed^0 &&
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git commit --amend -S --no-edit &&
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git verify-commit HEAD &&
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git show -s --show-signature HEAD >actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
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! grep "${GPGSSH_BAD_SIGNATURE}" actual
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'
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test_expect_success GPGSSH 'show good signature with custom format' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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FINGERPRINT=$(ssh-keygen -lf "${GPGSSH_KEY_PRIMARY}" | awk "{print \$2;}") &&
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cat >expect.tmpl <<-\EOF &&
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G
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FINGERPRINT
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principal with number 1
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FINGERPRINT
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EOF
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sed "s|FINGERPRINT|$FINGERPRINT|g" expect.tmpl >expect &&
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git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" sixth-signed >actual &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'show bad signature with custom format' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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cat >expect <<-\EOF &&
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B
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EOF
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git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat forged1.commit) >actual &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'show untrusted signature with custom format' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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cat >expect.tmpl <<-\EOF &&
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U
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FINGERPRINT
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FINGERPRINT
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EOF
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git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
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FINGERPRINT=$(ssh-keygen -lf "${GPGSSH_KEY_UNTRUSTED}" | awk "{print \$2;}") &&
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sed "s|FINGERPRINT|$FINGERPRINT|g" expect.tmpl >expect &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'show untrusted signature with undefined trust level' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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cat >expect.tmpl <<-\EOF &&
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undefined
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FINGERPRINT
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FINGERPRINT
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EOF
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git log -1 --format="%GT%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
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FINGERPRINT=$(ssh-keygen -lf "${GPGSSH_KEY_UNTRUSTED}" | awk "{print \$2;}") &&
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sed "s|FINGERPRINT|$FINGERPRINT|g" expect.tmpl >expect &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'show untrusted signature with ultimate trust level' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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cat >expect.tmpl <<-\EOF &&
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fully
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FINGERPRINT
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principal with number 1
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FINGERPRINT
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EOF
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git log -1 --format="%GT%n%GK%n%GS%n%GF%n%GP" sixth-signed >actual &&
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FINGERPRINT=$(ssh-keygen -lf "${GPGSSH_KEY_PRIMARY}" | awk "{print \$2;}") &&
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sed "s|FINGERPRINT|$FINGERPRINT|g" expect.tmpl >expect &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'show lack of signature with custom format' '
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cat >expect <<-\EOF &&
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N
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EOF
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git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" seventh-unsigned >actual &&
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test_cmp expect actual
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'
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test_expect_success GPGSSH 'log.showsignature behaves like --show-signature' '
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test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
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test_config log.showsignature true &&
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git show initial >actual &&
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grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
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'
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test_expect_success GPGSSH 'check config gpg.format values' '
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test_config gpg.format ssh &&
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test_config user.signingkey "${GPGSSH_KEY_PRIMARY}" &&
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test_config gpg.format ssh &&
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git commit -S --amend -m "success" &&
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test_config gpg.format OpEnPgP &&
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test_must_fail git commit -S --amend -m "fail"
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'
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test_expect_failure GPGSSH 'detect fudged commit with double signature (TODO)' '
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sed -e "/gpgsig/,/END PGP/d" forged1 >double-base &&
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sed -n -e "/gpgsig/,/END PGP/p" forged1 | \
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sed -e "s/^$(test_oid header)//;s/^ //" | gpg --dearmor >double-sig1.sig &&
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gpg -o double-sig2.sig -u 29472784 --detach-sign double-base &&
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cat double-sig1.sig double-sig2.sig | gpg --enarmor >double-combined.asc &&
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sed -e "s/^\(-.*\)ARMORED FILE/\1SIGNATURE/;1s/^/$(test_oid header) /;2,\$s/^/ /" \
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double-combined.asc > double-gpgsig &&
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sed -e "/committer/r double-gpgsig" double-base >double-commit &&
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git hash-object -w -t commit double-commit >double-commit.commit &&
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test_must_fail git verify-commit $(cat double-commit.commit) &&
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git show --pretty=short --show-signature $(cat double-commit.commit) >double-actual &&
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grep "BAD signature from" double-actual &&
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grep "Good signature from" double-actual
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'
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test_expect_failure GPGSSH 'show double signature with custom format (TODO)' '
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cat >expect <<-\EOF &&
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E
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EOF
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git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat double-commit.commit) >actual &&
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test_cmp expect actual
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'
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test_expect_failure GPGSSH 'verify-commit verifies multiply signed commits (TODO)' '
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git init multiply-signed &&
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cd multiply-signed &&
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test_commit first &&
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echo 1 >second &&
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git add second &&
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tree=$(git write-tree) &&
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parent=$(git rev-parse HEAD^{commit}) &&
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git commit --gpg-sign -m second &&
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git cat-file commit HEAD &&
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# Avoid trailing whitespace.
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sed -e "s/^Q//" -e "s/^Z/ /" >commit <<-EOF &&
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Qtree $tree
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Qparent $parent
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Qauthor A U Thor <author@example.com> 1112912653 -0700
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Qcommitter C O Mitter <committer@example.com> 1112912653 -0700
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Qgpgsig -----BEGIN PGP SIGNATURE-----
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QZ
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Q iHQEABECADQWIQRz11h0S+chaY7FTocTtvUezd5DDQUCX/uBDRYcY29tbWl0dGVy
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Q QGV4YW1wbGUuY29tAAoJEBO29R7N3kMNd+8AoK1I8mhLHviPH+q2I5fIVgPsEtYC
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Q AKCTqBh+VabJceXcGIZuF0Ry+udbBQ==
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Q =tQ0N
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Q -----END PGP SIGNATURE-----
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Qgpgsig-sha256 -----BEGIN PGP SIGNATURE-----
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QZ
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Q iHQEABECADQWIQRz11h0S+chaY7FTocTtvUezd5DDQUCX/uBIBYcY29tbWl0dGVy
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Q QGV4YW1wbGUuY29tAAoJEBO29R7N3kMN/NEAn0XO9RYSBj2dFyozi0JKSbssYMtO
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Q AJwKCQ1BQOtuwz//IjU8TiS+6S4iUw==
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Q =pIwP
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Q -----END PGP SIGNATURE-----
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Q
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Qsecond
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EOF
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head=$(git hash-object -t commit -w commit) &&
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git reset --hard $head &&
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git verify-commit $head 2>actual &&
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grep "Good signature from" actual &&
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! grep "BAD signature from" actual
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'
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test_done
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