mime-node: rename decrypted_child to unwrapped_child

[notmuch] / mime-node.c

diff --git a/mime-node.c b/mime-node.c
index abb6dd8432bbb4c9e54ec325c5fa6862b7032063..2a823dfdcbd75c1f679041099555580d720fdd24 100644 (file)
--- a/mime-node.c
+++ b/mime-node.c
@@ -36,6 +36,9 @@ typedef struct mime_node_context {
     GMimeMessage *mime_message;
     _notmuch_message_crypto_t *msg_crypto;
 
+    /* repaired/unmangled parts that will need to be cleaned up */
+    GSList *repaired_parts;
+
     /* Context provided by the caller. */
     _notmuch_crypto_t *crypto;
 } mime_node_context_t;
@@ -52,9 +55,21 @@ _mime_node_context_free (mime_node_context_t *res)
     if (res->stream)
        g_object_unref (res->stream);
 
+    if (res->repaired_parts)
+       g_slist_free_full (res->repaired_parts, g_object_unref);
+
     return 0;
 }
 
+/* keep track of objects that need to be destroyed when the mime node
+ * context goes away. */
+static void
+_mime_node_context_track_repaired_part (mime_node_context_t *ctx, GMimeObject *part)
+{
+    if (part)
+       ctx->repaired_parts = g_slist_prepend (ctx->repaired_parts, part);
+}
+
 const _notmuch_message_crypto_t *
 mime_node_get_message_crypto_status (mime_node_t *node)
 {
@@ -186,7 +201,7 @@ node_verify (mime_node_t *node, GMimeObject *part)
 
     node->verify_attempted = true;
     node->sig_list = g_mime_multipart_signed_verify (
-       GMIME_MULTIPART_SIGNED (part), GMIME_ENCRYPT_NONE, &err);
+       GMIME_MULTIPART_SIGNED (part), GMIME_VERIFY_NONE, &err);
 
     if (node->sig_list)
        set_signature_list_destructor (node);
@@ -212,19 +227,19 @@ node_decrypt_and_verify (mime_node_t *node, GMimeObject *part)
     GMimeMultipartEncrypted *encrypteddata = GMIME_MULTIPART_ENCRYPTED (part);
     notmuch_message_t *message = NULL;
 
-    if (! node->decrypted_child) {
+    if (! node->unwrapped_child) {
        for (mime_node_t *parent = node; parent; parent = parent->parent)
            if (parent->envelope_file) {
                message = parent->envelope_file;
                break;
            }
 
-       node->decrypted_child = _notmuch_crypto_decrypt (&node->decrypt_attempted,
+       node->unwrapped_child = _notmuch_crypto_decrypt (&node->decrypt_attempted,
                                                         node->ctx->crypto->decrypt,
                                                         message,
                                                         encrypteddata, &decrypt_result, &err);
     }
-    if (! node->decrypted_child) {
+    if (! node->unwrapped_child) {
        fprintf (stderr, "Failed to decrypt part: %s\n",
                 err ? err->message : "no error explanation given");
        goto DONE;
@@ -298,6 +313,13 @@ _mime_node_set_up_part (mime_node_t *node, GMimeObject *part, int numchild)
        node->part = part;
        node->nchildren = 0;
     } else if (GMIME_IS_MULTIPART (part)) {
+       GMimeObject *repaired_part = _notmuch_repair_mixed_up_mangled (part);
+       if (repaired_part) {
+           /* This was likely "Mixed Up" in transit!  We replace it
+            * with the more likely-to-be-correct variant. */
+           _mime_node_context_track_repaired_part (node->ctx, repaired_part);
+           part = repaired_part;
+       }
        node->part = part;
        node->nchildren = g_mime_multipart_get_count (GMIME_MULTIPART (part));
     } else if (GMIME_IS_MESSAGE_PART (part)) {
@@ -333,7 +355,16 @@ _mime_node_set_up_part (mime_node_t *node, GMimeObject *part, int numchild)
            node_verify (node, part);
        }
     } else {
-       (void) _notmuch_message_crypto_potential_payload (node->ctx->msg_crypto, part, node->parent ? node->parent->part : NULL, numchild);
+       if (_notmuch_message_crypto_potential_payload (node->ctx->msg_crypto, part, node->parent ? node->parent->part : NULL, numchild) &&
+           node->ctx->msg_crypto->decryption_status == NOTMUCH_MESSAGE_DECRYPTED_FULL) {
+           GMimeObject *clean_payload = _notmuch_repair_crypto_payload_skip_legacy_display (part);
+           if (clean_payload != part) {
+               /* only one layer of recursion is possible here
+                * because there can be only a single cryptographic
+                * payload: */
+               return _mime_node_set_up_part (node, clean_payload, numchild);
+           }
+       }
     }
 
     return true;
@@ -349,8 +380,8 @@ mime_node_child (mime_node_t *parent, int child)
        return NULL;
 
     if (GMIME_IS_MULTIPART (parent->part)) {
-       if (child == GMIME_MULTIPART_ENCRYPTED_CONTENT && parent->decrypted_child)
-           sub = parent->decrypted_child;
+       if (child == GMIME_MULTIPART_ENCRYPTED_CONTENT && parent->unwrapped_child)
+           sub = parent->unwrapped_child;
        else
            sub = g_mime_multipart_get_part (
                GMIME_MULTIPART (parent->part), child);