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cli/show: If a leaf part has children, show them instead of omitting

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Until we did PKCS#7 unwrapping, no leaf MIME part could have a child.

Now, we treat the unwrapped MIME part as the child of the PKCS#7
SignedData object.  So in that case, we want to show it instead of
deliberately omitting the content.

This fixes the test of the protected subject in
id:smime-onepart-signed@protected-headers.example.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
This commit is contained in:
Daniel Kahn Gillmor 2020-05-12 18:29:34 -04:00 committed by David Bremner
parent 5f4aceee26
commit f12fb4d819
3 changed files with 14 additions and 6 deletions
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11
notmuch-show.c
View file

@ -759,7 +759,16 @@ format_part_sprinter (const void *ctx, sprinter_t *sp, mime_node_t *node,
sp->string_len (sp, (char *) part_content->data, part_content->len);
g_object_unref (stream_memory);
} else {
format_omitted_part_meta_sprinter (sp, meta, GMIME_PART (node->part));
/* if we have a child part despite being a standard
* (non-multipart) MIME part, that means there is
* something to unwrap, which we will present in
* content: */
if (node->nchildren) {
sp->map_key (sp, "content");
sp->begin_list (sp);
nclose = 1;
} else
format_omitted_part_meta_sprinter (sp, meta, GMIME_PART (node->part));
}
} else if (GMIME_IS_MULTIPART (node->part)) {
sp->map_key (sp, "content");

6
test/T355-smime.sh
View file

@ -177,12 +177,10 @@ On Tue, 26 Nov 2019 20:11:29 -0400, Alice Lovelace <alice@smime.example> wrote:
test_expect_equal "$expected" "$output"
test_begin_subtest "show PKCS#7 SignedData outputs valid JSON"
test_subtest_known_broken
output=$(notmuch show --format=json id:smime-onepart-signed@protected-headers.example)
test_valid_json "$output"
test_begin_subtest "Verify signature on PKCS#7 SignedData message"
test_subtest_known_broken
output=$(notmuch show --format=json id:smime-onepart-signed@protected-headers.example)
test_json_nodes <<<"$output" \
@ -192,7 +190,9 @@ test_json_nodes <<<"$output" \
'status:[0][0][0]["crypto"]["signed"]["status"][0]["status"]="good"'
test_begin_subtest "Verify signature on PKCS#7 SignedData message signer User ID"
test_subtest_known_broken
if [ $NOTMUCH_GMIME_X509_CERT_VALIDITY -ne 1 ]; then
test_subtest_known_broken
fi
test_json_nodes <<<"$output" \
'userid:[0][0][0]["crypto"]["signed"]["status"][0]["userid"]="CN=Alice Lovelace"'

3
test/T356-protected-headers.sh
View file

@ -157,7 +157,6 @@ test_expect_equal "$output" id:protected-with-legacy-display@crypto.notmuchmail.
for variant in multipart-signed onepart-signed; do
test_begin_subtest "verify signed PKCS#7 subject ($variant)"
[ "$variant" = multipart-signed ] || test_subtest_known_broken
output=$(notmuch show --verify --format=json "id:smime-${variant}@protected-headers.example")
test_json_nodes <<<"$output" \
'signed_subject:[0][0][0]["crypto"]["signed"]["headers"]=["Subject"]' \
@ -165,7 +164,7 @@ for variant in multipart-signed onepart-signed; do
'sig_fpr:[0][0][0]["crypto"]["signed"]["status"][0]["fingerprint"]="702BA4B157F1E2B7D16B0C6A5FFC8A7DE2057DEB"' \
'not_encrypted:[0][0][0]["crypto"]!"decrypted"'
test_begin_subtest "verify signed PKCS#7 subject ($variant) signer User ID"
if [ $NOTMUCH_GMIME_X509_CERT_VALIDITY -ne 1 ] || [ "$variant" != multipart-signed ]; then
if [ $NOTMUCH_GMIME_X509_CERT_VALIDITY -ne 1 ]; then
test_subtest_known_broken
fi
test_json_nodes <<<"$output" \