crypto: actually stash session keys when decrypt=true

[notmuch] / mime-node.c

diff --git a/mime-node.c b/mime-node.c
index 56187746b36c8e73d6d1186aa562ed74f9207402..11df082b86cd03520d17fbf5ff9ae5e547878af5 100644 (file)
--- a/mime-node.c
+++ b/mime-node.c
@@ -171,7 +171,7 @@ set_signature_list_destructor (mime_node_t *node)
 /* Verify a signed mime node (GMime 2.6) */
 static void
 node_verify (mime_node_t *node, GMimeObject *part,
-            g_mime_3_unused(notmuch_crypto_context_t *cryptoctx))
+            g_mime_3_unused(GMimeCryptoContext *cryptoctx))
 {
     GError *err = NULL;
 
@@ -192,15 +192,23 @@ node_verify (mime_node_t *node, GMimeObject *part,
 /* Decrypt and optionally verify an encrypted mime node (GMime 2.6) */
 static void
 node_decrypt_and_verify (mime_node_t *node, GMimeObject *part,
-                        g_mime_3_unused(notmuch_crypto_context_t *cryptoctx))
+                        g_mime_3_unused(GMimeCryptoContext *cryptoctx))
 {
     GError *err = NULL;
     GMimeDecryptResult *decrypt_result = NULL;
     GMimeMultipartEncrypted *encrypteddata = GMIME_MULTIPART_ENCRYPTED (part);
 
-    node->decrypt_attempted = true;
-    node->decrypted_child = g_mime_multipart_encrypted_decrypt
-       (encrypteddata, cryptoctx, &decrypt_result, &err);
+    if (! node->decrypted_child) {
+       mime_node_t *parent;
+       for (parent = node; parent; parent = parent->parent)
+           if (parent->envelope_file)
+               break;
+
+       node->decrypted_child = _notmuch_crypto_decrypt (&node->decrypt_attempted,
+                                                        node->ctx->crypto->decrypt,
+                                                        parent ? parent->envelope_file : NULL,
+                                                        cryptoctx, encrypteddata, &decrypt_result, &err);
+    }
     if (! node->decrypted_child) {
        fprintf (stderr, "Failed to decrypt part: %s\n",
                 err ? err->message : "no error explanation given");
@@ -210,13 +218,15 @@ node_decrypt_and_verify (mime_node_t *node, GMimeObject *part,
     node->decrypt_success = true;
     node->verify_attempted = true;
 
-    /* This may be NULL if the part is not signed. */
-    node->sig_list = g_mime_decrypt_result_get_signatures (decrypt_result);
-    if (node->sig_list) {
-       g_object_ref (node->sig_list);
-       set_signature_list_destructor (node);
+    if (decrypt_result) {
+       /* This may be NULL if the part is not signed. */
+       node->sig_list = g_mime_decrypt_result_get_signatures (decrypt_result);
+       if (node->sig_list) {
+           g_object_ref (node->sig_list);
+           set_signature_list_destructor (node);
+       }
+       g_object_unref (decrypt_result);
     }
-    g_object_unref (decrypt_result);
 
  DONE:
     if (err)
@@ -227,7 +237,7 @@ static mime_node_t *
 _mime_node_create (mime_node_t *parent, GMimeObject *part)
 {
     mime_node_t *node = talloc_zero (parent, mime_node_t);
-    notmuch_crypto_context_t *cryptoctx = NULL;
+    GMimeCryptoContext *cryptoctx = NULL;
 
     /* Set basic node properties */
     node->part = part;
@@ -261,18 +271,23 @@ _mime_node_create (mime_node_t *parent, GMimeObject *part)
     }
 
 #if (GMIME_MAJOR_VERSION < 3)
-    if ((GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt)
+    if ((GMIME_IS_MULTIPART_ENCRYPTED (part) && (node->ctx->crypto->decrypt != NOTMUCH_DECRYPT_FALSE))
        || (GMIME_IS_MULTIPART_SIGNED (part) && node->ctx->crypto->verify)) {
        GMimeContentType *content_type = g_mime_object_get_content_type (part);
        const char *protocol = g_mime_content_type_get_parameter (content_type, "protocol");
-       cryptoctx = _notmuch_crypto_get_context (node->ctx->crypto, protocol);
+       notmuch_status_t status;
+       status = _notmuch_crypto_get_gmime_ctx_for_protocol (node->ctx->crypto,
+                                                            protocol, &cryptoctx);
+       if (status) /* this is a warning, not an error */
+           fprintf (stderr, "Warning: %s (%s).\n", notmuch_status_to_string (status),
+                    protocol ? protocol : "NULL");
        if (!cryptoctx)
-           return NULL;
+           return node;
     }
 #endif
 
     /* Handle PGP/MIME parts */
-    if (GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt) {
+    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. */
            fprintf (stderr, "Error: %d part(s) for a multipart/encrypted "