3 test_description='signed commit tests'
5 GNUPGHOME_NOT_USED=$GNUPGHOME
6 . "$TEST_DIRECTORY/lib-gpg.sh"
8 test_expect_success GPG 'create signed commits' '
9 test_when_finished "test_unconfig commit.gpgsign" &&
11 echo 1 >file && git add file &&
12 test_tick && git commit -S -m initial &&
16 echo 2 >file && test_tick && git commit -a -S -m second &&
20 echo 3 >elif && git add elif &&
21 test_tick && git commit -m "third on side" &&
23 git checkout master &&
24 test_tick && git merge -S side &&
27 echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
28 git tag fourth-unsigned &&
30 test_tick && git commit --amend -S -m "fourth signed" &&
31 git tag fourth-signed &&
33 git config commit.gpgsign true &&
34 echo 5 >file && test_tick && git commit -a -m "fifth signed" &&
35 git tag fifth-signed &&
37 git config commit.gpgsign false &&
38 echo 6 >file && test_tick && git commit -a -m "sixth" &&
39 git tag sixth-unsigned &&
41 git config commit.gpgsign true &&
42 echo 7 >file && test_tick && git commit -a -m "seventh" --no-gpg-sign &&
43 git tag seventh-unsigned &&
45 test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
46 git tag seventh-signed &&
48 echo 8 >file && test_tick && git commit -a -m eighth -SB7227189 &&
49 git tag eighth-signed-alt &&
51 # commit.gpgsign is still on but this must not be signed
52 echo 9 | git commit-tree HEAD^{tree} >oid &&
53 test_line_count = 1 oid &&
54 git tag ninth-unsigned $(cat oid) &&
55 # explicit -S of course must sign.
56 echo 10 | git commit-tree -S HEAD^{tree} >oid &&
57 test_line_count = 1 oid &&
58 git tag tenth-signed $(cat oid)
61 test_expect_success GPG 'verify and show signatures' '
63 for commit in initial second merge fourth-signed \
64 fifth-signed sixth-signed seventh-signed tenth-signed
66 git verify-commit $commit &&
67 git show --pretty=short --show-signature $commit >actual &&
68 grep "Good signature from" actual &&
69 ! grep "BAD signature from" actual &&
70 echo $commit OK || exit 1
74 for commit in merge^2 fourth-unsigned sixth-unsigned \
75 seventh-unsigned ninth-unsigned
77 test_must_fail git verify-commit $commit &&
78 git show --pretty=short --show-signature $commit >actual &&
79 ! grep "Good signature from" actual &&
80 ! grep "BAD signature from" actual &&
81 echo $commit OK || exit 1
85 for commit in eighth-signed-alt
87 git show --pretty=short --show-signature $commit >actual &&
88 grep "Good signature from" actual &&
89 ! grep "BAD signature from" actual &&
90 grep "not certified" actual &&
91 echo $commit OK || exit 1
96 test_expect_success GPG 'verify-commit exits success on untrusted signature' '
97 git verify-commit eighth-signed-alt 2>actual &&
98 grep "Good signature from" actual &&
99 ! grep "BAD signature from" actual &&
100 grep "not certified" actual
103 test_expect_success GPG 'verify signatures with --raw' '
105 for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
107 git verify-commit --raw $commit 2>actual &&
108 grep "GOODSIG" actual &&
109 ! grep "BADSIG" actual &&
110 echo $commit OK || exit 1
114 for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
116 test_must_fail git verify-commit --raw $commit 2>actual &&
117 ! grep "GOODSIG" actual &&
118 ! grep "BADSIG" actual &&
119 echo $commit OK || exit 1
123 for commit in eighth-signed-alt
125 git verify-commit --raw $commit 2>actual &&
126 grep "GOODSIG" actual &&
127 ! grep "BADSIG" actual &&
128 grep "TRUST_UNDEFINED" actual &&
129 echo $commit OK || exit 1
134 test_expect_success GPG 'show signed commit with signature' '
135 git show -s initial >commit &&
136 git show -s --show-signature initial >show &&
137 git verify-commit -v initial >verify.1 2>verify.2 &&
138 git cat-file commit initial >cat &&
139 grep -v -e "gpg: " -e "Warning: " show >show.commit &&
140 grep -e "gpg: " -e "Warning: " show >show.gpg &&
141 grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
142 test_cmp show.commit commit &&
143 test_cmp show.gpg verify.2 &&
144 test_cmp cat.commit verify.1
147 test_expect_success GPG 'detect fudged signature' '
148 git cat-file commit seventh-signed >raw &&
149 sed -e "s/^seventh/7th forged/" raw >forged1 &&
150 git hash-object -w -t commit forged1 >forged1.commit &&
151 test_must_fail git verify-commit $(cat forged1.commit) &&
152 git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
153 grep "BAD signature from" actual1 &&
154 ! grep "Good signature from" actual1
157 test_expect_success GPG 'detect fudged signature with NUL' '
158 git cat-file commit seventh-signed >raw &&
160 echo Qwik | tr "Q" "\000" >>forged2 &&
161 git hash-object -w -t commit forged2 >forged2.commit &&
162 test_must_fail git verify-commit $(cat forged2.commit) &&
163 git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
164 grep "BAD signature from" actual2 &&
165 ! grep "Good signature from" actual2
168 test_expect_success GPG 'amending already signed commit' '
169 git checkout fourth-signed^0 &&
170 git commit --amend -S --no-edit &&
171 git verify-commit HEAD &&
172 git show -s --show-signature HEAD >actual &&
173 grep "Good signature from" actual &&
174 ! grep "BAD signature from" actual
177 test_expect_success GPG 'show good signature with custom format' '
178 cat >expect <<-\EOF &&
181 C O Mitter <committer@example.com>
182 73D758744BE721698EC54E8713B6F51ECDDE430D
183 73D758744BE721698EC54E8713B6F51ECDDE430D
185 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" sixth-signed >actual &&
186 test_cmp expect actual
189 test_expect_success GPG 'show bad signature with custom format' '
190 cat >expect <<-\EOF &&
193 C O Mitter <committer@example.com>
197 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat forged1.commit) >actual &&
198 test_cmp expect actual
201 test_expect_success GPG 'show untrusted signature with custom format' '
202 cat >expect <<-\EOF &&
205 Eris Discordia <discord@example.net>
206 F8364A59E07FFE9F4D63005A65A0EEA02E30CAD7
207 D4BE22311AD3131E5EDA29A461092E85B7227189
209 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
210 test_cmp expect actual
213 test_expect_success GPG 'show unknown signature with custom format' '
214 cat >expect <<-\EOF &&
221 GNUPGHOME="$GNUPGHOME_NOT_USED" git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
222 test_cmp expect actual
225 test_expect_success GPG 'show lack of signature with custom format' '
226 cat >expect <<-\EOF &&
233 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" seventh-unsigned >actual &&
234 test_cmp expect actual
237 test_expect_success GPG 'log.showsignature behaves like --show-signature' '
238 test_config log.showsignature true &&
239 git show initial >actual &&
240 grep "gpg: Signature made" actual &&
241 grep "gpg: Good signature" actual
244 test_expect_success GPG 'check config gpg.format values' '
245 test_config gpg.format openpgp &&
246 git commit -S --amend -m "success" &&
247 test_config gpg.format OpEnPgP &&
248 test_must_fail git commit -S --amend -m "fail"
251 test_expect_success GPG 'detect fudged commit with double signature' '
252 sed -e "/gpgsig/,/END PGP/d" forged1 >double-base &&
253 sed -n -e "/gpgsig/,/END PGP/p" forged1 | \
254 sed -e "s/^gpgsig//;s/^ //" | gpg --dearmor >double-sig1.sig &&
255 gpg -o double-sig2.sig -u 29472784 --detach-sign double-base &&
256 cat double-sig1.sig double-sig2.sig | gpg --enarmor >double-combined.asc &&
257 sed -e "s/^\(-.*\)ARMORED FILE/\1SIGNATURE/;1s/^/gpgsig /;2,\$s/^/ /" \
258 double-combined.asc > double-gpgsig &&
259 sed -e "/committer/r double-gpgsig" double-base >double-commit &&
260 git hash-object -w -t commit double-commit >double-commit.commit &&
261 test_must_fail git verify-commit $(cat double-commit.commit) &&
262 git show --pretty=short --show-signature $(cat double-commit.commit) >double-actual &&
263 grep "BAD signature from" double-actual &&
264 grep "Good signature from" double-actual
267 test_expect_success GPG 'show double signature with custom format' '
268 cat >expect <<-\EOF &&
275 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat double-commit.commit) >actual &&
276 test_cmp expect actual