[PATCH 11/14] cli/show: If a leaf part has children, show them instead of omitting

[Daniel Kahn Gillmor]

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.

Signed-off-by: Daniel Kahn Gillmor <dkg at fifthhorseman.net>
---
 notmuch-show.c     | 11 ++++++++++-
 test/T355-smime.sh |  1 -
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/notmuch-show.c b/notmuch-show.c
index 21792a57..c809f8e9 100644
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -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");
diff --git a/test/T355-smime.sh b/test/T355-smime.sh
index 2b74918f..399bd91c 100755
--- a/test/T355-smime.sh
+++ b/test/T355-smime.sh
@@ -155,7 +155,6 @@ On Tue, 26 Nov 2019 20:11:29 -0400, Alice Lovelace <alice at smime.example> wrote:
 test_expect_equal "$expected" "$output"
 
 test_begin_subtest "show PKCS#7 SignedData outputs valid JSON"
-test_subtest_known_broken
 output=$(notmuch show --format=json id:smime-onepart-signed at protected-headers.example)
 test_valid_json "$output"
 
-- 
2.24.0