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) &&
60 # --gpg-sign[=<key-id>] must sign.
61 echo 11 | git commit-tree --gpg-sign HEAD^{tree} >oid &&
62 test_line_count = 1 oid &&
63 git tag eleventh-signed $(cat oid) &&
64 echo 12 | git commit-tree --gpg-sign=B7227189 HEAD^{tree} >oid &&
65 test_line_count = 1 oid &&
66 git tag twelfth-signed-alt $(cat oid)
69 test_expect_success GPG 'verify and show signatures' '
71 for commit in initial second merge fourth-signed \
72 fifth-signed sixth-signed seventh-signed tenth-signed \
75 git verify-commit $commit &&
76 git show --pretty=short --show-signature $commit >actual &&
77 grep "Good signature from" actual &&
78 ! grep "BAD signature from" actual &&
79 echo $commit OK || exit 1
83 for commit in merge^2 fourth-unsigned sixth-unsigned \
84 seventh-unsigned ninth-unsigned
86 test_must_fail git verify-commit $commit &&
87 git show --pretty=short --show-signature $commit >actual &&
88 ! grep "Good signature from" actual &&
89 ! grep "BAD signature from" actual &&
90 echo $commit OK || exit 1
94 for commit in eighth-signed-alt twelfth-signed-alt
96 git show --pretty=short --show-signature $commit >actual &&
97 grep "Good signature from" actual &&
98 ! grep "BAD signature from" actual &&
99 grep "not certified" actual &&
100 echo $commit OK || exit 1
105 test_expect_success GPG 'verify-commit exits success on untrusted signature' '
106 git verify-commit eighth-signed-alt 2>actual &&
107 grep "Good signature from" actual &&
108 ! grep "BAD signature from" actual &&
109 grep "not certified" actual
112 test_expect_success GPG 'verify-commit exits success with matching minTrustLevel' '
113 test_config gpg.minTrustLevel ultimate &&
114 git verify-commit sixth-signed
117 test_expect_success GPG 'verify-commit exits success with low minTrustLevel' '
118 test_config gpg.minTrustLevel fully &&
119 git verify-commit sixth-signed
122 test_expect_success GPG 'verify-commit exits failure with high minTrustLevel' '
123 test_config gpg.minTrustLevel ultimate &&
124 test_must_fail git verify-commit eighth-signed-alt
127 test_expect_success GPG 'verify signatures with --raw' '
129 for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
131 git verify-commit --raw $commit 2>actual &&
132 grep "GOODSIG" actual &&
133 ! grep "BADSIG" actual &&
134 echo $commit OK || exit 1
138 for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
140 test_must_fail git verify-commit --raw $commit 2>actual &&
141 ! grep "GOODSIG" actual &&
142 ! grep "BADSIG" actual &&
143 echo $commit OK || exit 1
147 for commit in eighth-signed-alt
149 git verify-commit --raw $commit 2>actual &&
150 grep "GOODSIG" actual &&
151 ! grep "BADSIG" actual &&
152 grep "TRUST_UNDEFINED" actual &&
153 echo $commit OK || exit 1
158 test_expect_success GPG 'show signed commit with signature' '
159 git show -s initial >commit &&
160 git show -s --show-signature initial >show &&
161 git verify-commit -v initial >verify.1 2>verify.2 &&
162 git cat-file commit initial >cat &&
163 grep -v -e "gpg: " -e "Warning: " show >show.commit &&
164 grep -e "gpg: " -e "Warning: " show >show.gpg &&
165 grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
166 test_cmp show.commit commit &&
167 test_cmp show.gpg verify.2 &&
168 test_cmp cat.commit verify.1
171 test_expect_success GPG 'detect fudged signature' '
172 git cat-file commit seventh-signed >raw &&
173 sed -e "s/^seventh/7th forged/" raw >forged1 &&
174 git hash-object -w -t commit forged1 >forged1.commit &&
175 test_must_fail git verify-commit $(cat forged1.commit) &&
176 git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
177 grep "BAD signature from" actual1 &&
178 ! grep "Good signature from" actual1
181 test_expect_success GPG 'detect fudged signature with NUL' '
182 git cat-file commit seventh-signed >raw &&
184 echo Qwik | tr "Q" "\000" >>forged2 &&
185 git hash-object -w -t commit forged2 >forged2.commit &&
186 test_must_fail git verify-commit $(cat forged2.commit) &&
187 git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
188 grep "BAD signature from" actual2 &&
189 ! grep "Good signature from" actual2
192 test_expect_success GPG 'amending already signed commit' '
193 git checkout fourth-signed^0 &&
194 git commit --amend -S --no-edit &&
195 git verify-commit HEAD &&
196 git show -s --show-signature HEAD >actual &&
197 grep "Good signature from" actual &&
198 ! grep "BAD signature from" actual
201 test_expect_success GPG 'show good signature with custom format' '
202 cat >expect <<-\EOF &&
205 C O Mitter <committer@example.com>
206 73D758744BE721698EC54E8713B6F51ECDDE430D
207 73D758744BE721698EC54E8713B6F51ECDDE430D
209 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" sixth-signed >actual &&
210 test_cmp expect actual
213 test_expect_success GPG 'show bad signature with custom format' '
214 cat >expect <<-\EOF &&
217 C O Mitter <committer@example.com>
221 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat forged1.commit) >actual &&
222 test_cmp expect actual
225 test_expect_success GPG 'show untrusted signature with custom format' '
226 cat >expect <<-\EOF &&
229 Eris Discordia <discord@example.net>
230 F8364A59E07FFE9F4D63005A65A0EEA02E30CAD7
231 D4BE22311AD3131E5EDA29A461092E85B7227189
233 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
234 test_cmp expect actual
237 test_expect_success GPG 'show untrusted signature with undefined trust level' '
238 cat >expect <<-\EOF &&
241 Eris Discordia <discord@example.net>
242 F8364A59E07FFE9F4D63005A65A0EEA02E30CAD7
243 D4BE22311AD3131E5EDA29A461092E85B7227189
245 git log -1 --format="%GT%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
246 test_cmp expect actual
249 test_expect_success GPG 'show untrusted signature with ultimate trust level' '
250 cat >expect <<-\EOF &&
253 C O Mitter <committer@example.com>
254 73D758744BE721698EC54E8713B6F51ECDDE430D
255 73D758744BE721698EC54E8713B6F51ECDDE430D
257 git log -1 --format="%GT%n%GK%n%GS%n%GF%n%GP" sixth-signed >actual &&
258 test_cmp expect actual
261 test_expect_success GPG 'show unknown signature with custom format' '
262 cat >expect <<-\EOF &&
269 GNUPGHOME="$GNUPGHOME_NOT_USED" git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" eighth-signed-alt >actual &&
270 test_cmp expect actual
273 test_expect_success GPG 'show lack of signature with custom format' '
274 cat >expect <<-\EOF &&
281 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" seventh-unsigned >actual &&
282 test_cmp expect actual
285 test_expect_success GPG 'log.showsignature behaves like --show-signature' '
286 test_config log.showsignature true &&
287 git show initial >actual &&
288 grep "gpg: Signature made" actual &&
289 grep "gpg: Good signature" actual
292 test_expect_success GPG 'check config gpg.format values' '
293 test_config gpg.format openpgp &&
294 git commit -S --amend -m "success" &&
295 test_config gpg.format OpEnPgP &&
296 test_must_fail git commit -S --amend -m "fail"
299 test_expect_success GPG 'detect fudged commit with double signature' '
300 sed -e "/gpgsig/,/END PGP/d" forged1 >double-base &&
301 sed -n -e "/gpgsig/,/END PGP/p" forged1 | \
302 sed -e "s/^gpgsig//;s/^ //" | gpg --dearmor >double-sig1.sig &&
303 gpg -o double-sig2.sig -u 29472784 --detach-sign double-base &&
304 cat double-sig1.sig double-sig2.sig | gpg --enarmor >double-combined.asc &&
305 sed -e "s/^\(-.*\)ARMORED FILE/\1SIGNATURE/;1s/^/gpgsig /;2,\$s/^/ /" \
306 double-combined.asc > double-gpgsig &&
307 sed -e "/committer/r double-gpgsig" double-base >double-commit &&
308 git hash-object -w -t commit double-commit >double-commit.commit &&
309 test_must_fail git verify-commit $(cat double-commit.commit) &&
310 git show --pretty=short --show-signature $(cat double-commit.commit) >double-actual &&
311 grep "BAD signature from" double-actual &&
312 grep "Good signature from" double-actual
315 test_expect_success GPG 'show double signature with custom format' '
316 cat >expect <<-\EOF &&
323 git log -1 --format="%G?%n%GK%n%GS%n%GF%n%GP" $(cat double-commit.commit) >actual &&
324 test_cmp expect actual