mime-node: split out _mime_node_set_up_part

This is a code reorganization that should have no functional effect,
but will make future changes simpler, because a future commit will
reuse the _mime_node_set_up_part functionality without touching
_mime_node_create.

In the course of splitting out this function, I noticed a comment in
the codebase that referred to an older name of _mime_node_create
(message_part_create), where this functionality originally resided.
I've fixed that comment to refer to the new function instead.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
This commit is contained in:
Daniel Kahn Gillmor 2019-08-29 11:38:46 -04:00 committed by David Bremner
parent e13862f127
commit dcfa2fc996

View file

@ -264,14 +264,15 @@ node_decrypt_and_verify (mime_node_t *node, GMimeObject *part)
g_error_free (err);
}
static bool
_mime_node_set_up_part (mime_node_t *node, GMimeObject *part, int numchild);
static mime_node_t *
_mime_node_create (mime_node_t *parent, GMimeObject *part, int numchild)
{
mime_node_t *node = talloc_zero (parent, mime_node_t);
notmuch_status_t status;
/* Set basic node properties */
node->part = part;
node->ctx = parent->ctx;
if (! talloc_reference (node, node->ctx)) {
fprintf (stderr, "Out of memory.\n");
@ -282,10 +283,24 @@ _mime_node_create (mime_node_t *parent, GMimeObject *part, int numchild)
node->part_num = node->next_part_num = -1;
node->next_child = 0;
if (_mime_node_set_up_part (node, part, numchild))
return node;
talloc_free (node);
return NULL;
}
/* associate a MIME part with a node. */
static bool
_mime_node_set_up_part (mime_node_t *node, GMimeObject *part, int numchild)
{
notmuch_status_t status;
/* Deal with the different types of parts */
if (GMIME_IS_PART (part)) {
node->part = part;
node->nchildren = 0;
} else if (GMIME_IS_MULTIPART (part)) {
node->part = part;
node->nchildren = g_mime_multipart_get_count (GMIME_MULTIPART (part));
} else if (GMIME_IS_MESSAGE_PART (part)) {
/* Promote part to an envelope and open it */
@ -297,11 +312,10 @@ _mime_node_create (mime_node_t *parent, GMimeObject *part, int numchild)
} else {
fprintf (stderr, "Warning: Unknown mime part type: %s.\n",
g_type_name (G_OBJECT_TYPE (part)));
talloc_free (node);
return NULL;
return false;
}
/* Handle PGP/MIME parts */
/* Handle PGP/MIME parts (by definition not cryptographic payload parts) */
if (GMIME_IS_MULTIPART_ENCRYPTED (part) && (node->ctx->crypto->decrypt != NOTMUCH_DECRYPT_FALSE)) {
if (node->nchildren != 2) {
/* this violates RFC 3156 section 4, so we won't bother with it. */
@ -321,12 +335,12 @@ _mime_node_create (mime_node_t *parent, GMimeObject *part, int numchild)
node_verify (node, part);
}
} else {
status = _notmuch_message_crypto_potential_payload (node->ctx->msg_crypto, part, parent ? parent->part : NULL, numchild);
status = _notmuch_message_crypto_potential_payload (node->ctx->msg_crypto, part, node->parent ? node->parent->part : NULL, numchild);
if (status)
fprintf (stderr, "Warning: failed to record potential crypto payload (%s).\n", notmuch_status_to_string (status));
}
return node;
return true;
}
mime_node_t *
@ -347,7 +361,7 @@ mime_node_child (mime_node_t *parent, int child)
} else if (GMIME_IS_MESSAGE (parent->part)) {
sub = g_mime_message_get_mime_part (GMIME_MESSAGE (parent->part));
} else {
/* This should have been caught by message_part_create */
/* This should have been caught by _mime_node_set_up_part */
INTERNAL_ERROR ("Unexpected GMimeObject type: %s",
g_type_name (G_OBJECT_TYPE (parent->part)));
}