2 files changed, 23 insertions, 11 deletions

diff --git a/src/libs/engine/events/CreatePatchEvent.cpp b/src/libs/engine/events/CreatePatchEvent.cpp
index e054412f..6279732e 100644
--- a/src/libs/engine/events/CreatePatchEvent.cpp
+++ b/src/libs/engine/events/CreatePatchEvent.cpp
@@ -45,6 +45,12 @@ CreatePatchEvent::CreatePatchEvent(Engine& engine, SharedPtr<Responder> responde
 void
 CreatePatchEvent::pre_process()
 {
+	if (!Path::is_valid(_path)) {
+		_error = INVALID_PATH;
+		QueuedEvent::pre_process();
+		return;
+	}
+
 	if (_path == "/" || _engine.engine_store()->find_object(_path) != NULL) {
 		_error = OBJECT_EXISTS;
 		QueuedEvent::pre_process();
@@ -57,7 +63,9 @@ CreatePatchEvent::pre_process()
 		return;
 	}
 	
-	_parent = _engine.engine_store()->find_patch(_path.parent());
+	const Path& path = (const Path&)_path;
+
+	_parent = _engine.engine_store()->find_patch(path.parent());
 	if (_parent == NULL) {
 		_error = PARENT_NOT_FOUND;
 		QueuedEvent::pre_process();
@@ -68,7 +76,7 @@ CreatePatchEvent::pre_process()
 	if (_parent != NULL && _poly > 1 && _poly == static_cast<int>(_parent->internal_polyphony()))
 		poly = _poly;
 	
-	_patch = new PatchImpl(_engine, _path.name(), poly, _parent, _engine.audio_driver()->sample_rate(), _engine.audio_driver()->buffer_size(), _poly);
+	_patch = new PatchImpl(_engine, path.name(), poly, _parent, _engine.audio_driver()->sample_rate(), _engine.audio_driver()->buffer_size(), _poly);
 		
 	if (_parent != NULL) {
 		_parent->add_node(new PatchImpl::Nodes::Node(_patch));
@@ -121,13 +129,17 @@ CreatePatchEvent::post_process()
 			// (otherwise they would be sent twice)
 			_engine.broadcaster()->send_patch(_patch, false);
 			
+		} else if (_error == INVALID_PATH) {
+			string msg = "Attempt to create patch with illegal path ";
+			msg.append(_path);
+			_responder->respond_error(msg);
 		} else if (_error == OBJECT_EXISTS) {
 			string msg = "Unable to create patch: ";
-			msg += _path += " already exists.";
+			msg.append(_path).append(" already exists.");
 			_responder->respond_error(msg);
 		} else if (_error == PARENT_NOT_FOUND) {
 			string msg = "Unable to create patch: Parent ";
-			msg += _path.parent() += " not found.";
+			msg.append(Path(_path).parent()).append(" not found.");
 			_responder->respond_error(msg);
 		} else if (_error == INVALID_POLY) {
 			string msg = "Unable to create patch ";
diff --git a/src/libs/engine/events/CreatePatchEvent.hpp b/src/libs/engine/events/CreatePatchEvent.hpp
index bcbcf35b..733aba17 100644
--- a/src/libs/engine/events/CreatePatchEvent.hpp
+++ b/src/libs/engine/events/CreatePatchEvent.hpp
@@ -47,14 +47,14 @@ public:
 	void post_process();
 
 private:
-	enum ErrorType { NO_ERROR, OBJECT_EXISTS, PARENT_NOT_FOUND, INVALID_POLY };
+	enum ErrorType { NO_ERROR, OBJECT_EXISTS, PARENT_NOT_FOUND, INVALID_POLY, INVALID_PATH };
 	
-	Raul::Path     _path;
-	PatchImpl*     _patch;
-	PatchImpl*     _parent;
-	CompiledPatch* _compiled_patch;
-	int            _poly;
-	ErrorType      _error;
+	const std::string _path;
+	PatchImpl*        _patch;
+	PatchImpl*        _parent;
+	CompiledPatch*    _compiled_patch;
+	int               _poly;
+	ErrorType         _error;
 };