X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=mime-node.c;h=cd3db67dfedde9d370f8cf7d78bf6a2bcef4698c;hp=c9b82330f6e08908e85fcae2891bb003c5dfec98;hb=e9b870b6923afe767a7c9938be24f5390102031a;hpb=6a833a6e83865f6999707cc30768d07e1351c2cb

diff --git a/mime-node.c b/mime-node.c
index c9b82330..cd3db67d 100644
--- a/mime-node.c
+++ b/mime-node.c
@@ -33,7 +33,7 @@ typedef struct mime_node_context {
     GMimeMessage *mime_message;
 
     /* Context provided by the caller. */
-    notmuch_crypto_t *crypto;
+    _notmuch_crypto_t *crypto;
 } mime_node_context_t;
 
 static int
@@ -56,7 +56,7 @@ _mime_node_context_free (mime_node_context_t *res)
 
 notmuch_status_t
 mime_node_open (const void *ctx, notmuch_message_t *message,
-		notmuch_crypto_t *crypto, mime_node_t **root_out)
+		_notmuch_crypto_t *crypto, mime_node_t **root_out)
 {
     const char *filename = notmuch_message_get_filename (message);
     mime_node_context_t *mctx;
@@ -79,12 +79,32 @@ mime_node_open (const void *ctx, notmuch_message_t *message,
     }
     talloc_set_destructor (mctx, _mime_node_context_free);
 
+    /* Fast path */
     mctx->file = fopen (filename, "r");
     if (! mctx->file) {
-	fprintf (stderr, "Error opening %s: %s\n", filename, strerror (errno));
-	status = NOTMUCH_STATUS_FILE_ERROR;
-	goto DONE;
-    }
+	/* Slow path - for some reason the first file in the list is
+	 * not available anymore. This is clearly a problem in the
+	 * database, but we are not going to let this problem be a
+	 * show stopper */
+	notmuch_filenames_t *filenames;
+	for (filenames = notmuch_message_get_filenames (message);
+	     notmuch_filenames_valid (filenames);
+	     notmuch_filenames_move_to_next (filenames))
+	{
+	    filename = notmuch_filenames_get (filenames);
+	    mctx->file = fopen (filename, "r");
+	    if (mctx->file)
+		break;
+	}
+
+	talloc_free (filenames);
+	if (! mctx->file) {
+	    /* Give up */
+	    fprintf (stderr, "Error opening %s: %s\n", filename, strerror (errno));
+		status = NOTMUCH_STATUS_FILE_ERROR;
+		goto DONE;
+	    }
+	}
 
     mctx->stream = g_mime_stream_file_new (mctx->file);
     if (!mctx->stream) {
@@ -92,7 +112,7 @@ mime_node_open (const void *ctx, notmuch_message_t *message,
 	status = NOTMUCH_STATUS_OUT_OF_MEMORY;
 	goto DONE;
     }
-    g_mime_stream_file_set_owner (GMIME_STREAM_FILE (mctx->stream), FALSE);
+    g_mime_stream_file_set_owner (GMIME_STREAM_FILE (mctx->stream), false);
 
     mctx->parser = g_mime_parser_new_with_stream (mctx->stream);
     if (!mctx->parser) {
@@ -101,7 +121,7 @@ mime_node_open (const void *ctx, notmuch_message_t *message,
 	goto DONE;
     }
 
-    mctx->mime_message = g_mime_parser_construct_message (mctx->parser);
+    mctx->mime_message = g_mime_parser_construct_message (mctx->parser, NULL);
     if (!mctx->mime_message) {
 	fprintf (stderr, "Failed to parse %s\n", filename);
 	status = NOTMUCH_STATUS_FILE_ERROR;
@@ -129,7 +149,7 @@ DONE:
     return status;
 }
 
-/* Signature list destructor (GMime 2.6) */
+/* Signature list destructor */
 static int
 _signature_list_free (GMimeSignatureList **proxy)
 {
@@ -137,7 +157,7 @@ _signature_list_free (GMimeSignatureList **proxy)
     return 0;
 }
 
-/* Set up signature list destructor (GMime 2.6) */
+/* Set up signature list destructor */
 static void
 set_signature_list_destructor (mime_node_t *node)
 {
@@ -148,16 +168,15 @@ set_signature_list_destructor (mime_node_t *node)
     }
 }
 
-/* Verify a signed mime node (GMime 2.6) */
+/* Verify a signed mime node */
 static void
-node_verify (mime_node_t *node, GMimeObject *part,
-	     notmuch_crypto_context_t *cryptoctx)
+node_verify (mime_node_t *node, GMimeObject *part)
 {
     GError *err = NULL;
 
-    node->verify_attempted = TRUE;
+    node->verify_attempted = true;
     node->sig_list = g_mime_multipart_signed_verify
-	(GMIME_MULTIPART_SIGNED (part), cryptoctx, &err);
+	(GMIME_MULTIPART_SIGNED (part), GMIME_ENCRYPT_NONE, &err);
 
     if (node->sig_list)
 	set_signature_list_destructor (node);
@@ -169,34 +188,55 @@ node_verify (mime_node_t *node, GMimeObject *part,
 	g_error_free (err);
 }
 
-/* Decrypt and optionally verify an encrypted mime node (GMime 2.6) */
+/* Decrypt and optionally verify an encrypted mime node */
 static void
-node_decrypt_and_verify (mime_node_t *node, GMimeObject *part,
-			 notmuch_crypto_context_t *cryptoctx)
+node_decrypt_and_verify (mime_node_t *node, GMimeObject *part)
 {
     GError *err = NULL;
     GMimeDecryptResult *decrypt_result = NULL;
     GMimeMultipartEncrypted *encrypteddata = GMIME_MULTIPART_ENCRYPTED (part);
+    notmuch_message_t *message = NULL;
 
-    node->decrypt_attempted = TRUE;
-    node->decrypted_child = g_mime_multipart_encrypted_decrypt
-	(encrypteddata, cryptoctx, &decrypt_result, &err);
+    if (! node->decrypted_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->ctx->crypto->decrypt,
+							 message,
+							 encrypteddata, &decrypt_result, &err);
+    }
     if (! node->decrypted_child) {
 	fprintf (stderr, "Failed to decrypt part: %s\n",
 		 err ? err->message : "no error explanation given");
 	goto DONE;
     }
 
-    node->decrypt_success = TRUE;
-    node->verify_attempted = TRUE;
+    node->decrypt_success = 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) {
+	    node->verify_attempted = true;
+	    g_object_ref (node->sig_list);
+	    set_signature_list_destructor (node);
+	}
+
+	if (node->ctx->crypto->decrypt == NOTMUCH_DECRYPT_TRUE && message) {
+	    notmuch_database_t *db = notmuch_message_get_database (message);
+	    const char *session_key = g_mime_decrypt_result_get_session_key (decrypt_result);
+	    if (db && session_key)
+		print_status_message ("Failed to stash session key in the database",
+				      message,
+				      notmuch_message_add_property (message, "session-key",
+								    session_key));
+	}
+	g_object_unref (decrypt_result);
     }
-    g_object_unref (decrypt_result);
 
  DONE:
     if (err)
@@ -207,7 +247,6 @@ 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;
 
     /* Set basic node properties */
     node->part = part;
@@ -240,31 +279,24 @@ _mime_node_create (mime_node_t *parent, GMimeObject *part)
 	return NULL;
     }
 
-    if ((GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt)
-	|| (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);
-    }
-
     /* Handle PGP/MIME parts */
-    if (GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt && cryptoctx) {
+    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 "
 		     "message (must be exactly 2)\n",
 		     node->nchildren);
 	} else {
-	    node_decrypt_and_verify (node, part, cryptoctx);
+	    node_decrypt_and_verify (node, part);
 	}
-    } else if (GMIME_IS_MULTIPART_SIGNED (part) && node->ctx->crypto->verify && cryptoctx) {
+    } else if (GMIME_IS_MULTIPART_SIGNED (part) && node->ctx->crypto->verify) {
 	if (node->nchildren != 2) {
 	    /* this violates RFC 3156 section 5, so we won't bother with it. */
 	    fprintf (stderr, "Error: %d part(s) for a multipart/signed message "
 		     "(must be exactly 2)\n",
 		     node->nchildren);
 	} else {
-	    node_verify (node, part, cryptoctx);
+	    node_verify (node, part);
 	}
     }
 
@@ -322,20 +354,21 @@ mime_node_child (mime_node_t *parent, int child)
 static mime_node_t *
 _mime_node_seek_dfs_walk (mime_node_t *node, int *n)
 {
-    mime_node_t *ret = NULL;
     int i;
 
     if (*n == 0)
 	return node;
 
     *n -= 1;
-    for (i = 0; i < node->nchildren && !ret; i++) {
+    for (i = 0; i < node->nchildren; i++) {
 	mime_node_t *child = mime_node_child (node, i);
-	ret = _mime_node_seek_dfs_walk (child, n);
-	if (!ret)
-	    talloc_free (child);
+	mime_node_t *ret = _mime_node_seek_dfs_walk (child, n);
+	if (ret)
+	    return ret;
+
+	talloc_free (child);
     }
-    return ret;
+    return NULL;
 }
 
 mime_node_t *