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-rw-r--r--src/server/events/Copy.cpp216
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diff --git a/src/server/events/Copy.cpp b/src/server/events/Copy.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2016 David Robillard <http://drobilla.net/>
+
+ Ingen is free software: you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or any later version.
+
+ Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with Ingen. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ingen/Parser.hpp"
+#include "ingen/Serialiser.hpp"
+#include "ingen/Store.hpp"
+#include "raul/Path.hpp"
+
+#include "BlockImpl.hpp"
+#include "Broadcaster.hpp"
+#include "Engine.hpp"
+#include "EnginePort.hpp"
+#include "GraphImpl.hpp"
+#include "PreProcessContext.hpp"
+#include "events/Copy.hpp"
+
+namespace ingen {
+namespace server {
+namespace events {
+
+Copy::Copy(Engine& engine,
+ SPtr<Interface> client,
+ SampleCount timestamp,
+ const ingen::Copy& msg)
+ : Event(engine, client, msg.seq, timestamp)
+ , _msg(msg)
+ , _old_block(nullptr)
+ , _parent(nullptr)
+ , _block(nullptr)
+{}
+
+bool
+Copy::pre_process(PreProcessContext& ctx)
+{
+ std::lock_guard<Store::Mutex> lock(_engine.store()->mutex());
+
+ if (uri_is_path(_msg.old_uri)) {
+ // Old URI is a path within the engine
+ const Raul::Path old_path = uri_to_path(_msg.old_uri);
+
+ // Find the old node
+ const Store::iterator i = _engine.store()->find(old_path);
+ if (i == _engine.store()->end()) {
+ return Event::pre_process_done(Status::NOT_FOUND, old_path);
+ }
+
+ // Ensure it is a block (ports are not supported for now)
+ if (!(_old_block = dynamic_ptr_cast<BlockImpl>(i->second))) {
+ return Event::pre_process_done(Status::BAD_OBJECT_TYPE, old_path);
+ }
+
+ if (uri_is_path(_msg.new_uri)) {
+ // Copy to path within the engine
+ return engine_to_engine(ctx);
+ } else if (_msg.new_uri.scheme() == "file") {
+ // Copy to filesystem path (i.e. save)
+ return engine_to_filesystem(ctx);
+ } else {
+ return Event::pre_process_done(Status::BAD_REQUEST);
+ }
+ } else if (_msg.old_uri.scheme() == "file") {
+ if (uri_is_path(_msg.new_uri)) {
+ return filesystem_to_engine(ctx);
+ } else {
+ // Ingen is not your file manager
+ return Event::pre_process_done(Status::BAD_REQUEST);
+ }
+ }
+
+ return Event::pre_process_done(Status::BAD_URI);
+}
+
+bool
+Copy::engine_to_engine(PreProcessContext& ctx)
+{
+ // Only support a single source for now
+ const Raul::Path new_path = uri_to_path(_msg.new_uri);
+ if (!Raul::Symbol::is_valid(new_path.symbol())) {
+ return Event::pre_process_done(Status::BAD_REQUEST);
+ }
+
+ // Ensure the new node doesn't already exist
+ if (_engine.store()->find(new_path) != _engine.store()->end()) {
+ return Event::pre_process_done(Status::EXISTS, new_path);
+ }
+
+ // Find new parent graph
+ const Raul::Path parent_path = new_path.parent();
+ const Store::iterator p = _engine.store()->find(parent_path);
+ if (p == _engine.store()->end()) {
+ return Event::pre_process_done(Status::NOT_FOUND, parent_path);
+ }
+ if (!(_parent = dynamic_cast<GraphImpl*>(p->second.get()))) {
+ return Event::pre_process_done(Status::BAD_OBJECT_TYPE, parent_path);
+ }
+
+ // Create new block
+ if (!(_block = dynamic_cast<BlockImpl*>(
+ _old_block->duplicate(_engine, Raul::Symbol(new_path.symbol()), _parent)))) {
+ return Event::pre_process_done(Status::INTERNAL_ERROR);
+ }
+
+ _block->activate(*_engine.buffer_factory());
+
+ // Add block to the store and the graph's pre-processor only block list
+ _parent->add_block(*_block);
+ _engine.store()->add(_block);
+
+ // Compile graph with new block added for insertion in audio thread
+ _compiled_graph = ctx.maybe_compile(*_engine.maid(), *_parent);
+
+ return Event::pre_process_done(Status::SUCCESS);
+}
+
+static bool
+ends_with(const std::string& str, const std::string& end)
+{
+ if (str.length() >= end.length()) {
+ return !str.compare(str.length() - end.length(), end.length(), end);
+ }
+ return false;
+}
+
+bool
+Copy::engine_to_filesystem(PreProcessContext& ctx)
+{
+ // Ensure source is a graph
+ SPtr<GraphImpl> graph = dynamic_ptr_cast<GraphImpl>(_old_block);
+ if (!graph) {
+ return Event::pre_process_done(Status::BAD_OBJECT_TYPE, _msg.old_uri);
+ }
+
+ if (!_engine.world()->serialiser()) {
+ return Event::pre_process_done(Status::INTERNAL_ERROR);
+ }
+
+ std::lock_guard<std::mutex> lock(_engine.world()->rdf_mutex());
+
+ if (ends_with(_msg.new_uri, ".ingen") || ends_with(_msg.new_uri, ".ingen/")) {
+ _engine.world()->serialiser()->write_bundle(graph, URI(_msg.new_uri));
+ } else {
+ _engine.world()->serialiser()->start_to_file(graph->path(), _msg.new_uri);
+ _engine.world()->serialiser()->serialise(graph);
+ _engine.world()->serialiser()->finish();
+ }
+
+ return Event::pre_process_done(Status::SUCCESS);
+}
+
+bool
+Copy::filesystem_to_engine(PreProcessContext& ctx)
+{
+ if (!_engine.world()->parser()) {
+ return Event::pre_process_done(Status::INTERNAL_ERROR);
+ }
+
+ std::lock_guard<std::mutex> lock(_engine.world()->rdf_mutex());
+
+ // Old URI is a filesystem path and new URI is a path within the engine
+ const std::string src_path(_msg.old_uri.path());
+ const Raul::Path dst_path = uri_to_path(_msg.new_uri);
+ boost::optional<Raul::Path> dst_parent;
+ boost::optional<Raul::Symbol> dst_symbol;
+ if (!dst_path.is_root()) {
+ dst_parent = dst_path.parent();
+ dst_symbol = Raul::Symbol(dst_path.symbol());
+ }
+
+ _engine.world()->parser()->parse_file(
+ _engine.world(), _engine.world()->interface().get(), src_path,
+ dst_parent, dst_symbol);
+
+ return Event::pre_process_done(Status::SUCCESS);
+}
+
+void
+Copy::execute(RunContext& context)
+{
+ if (_block && _compiled_graph) {
+ _parent->set_compiled_graph(std::move(_compiled_graph));
+ }
+}
+
+void
+Copy::post_process()
+{
+ Broadcaster::Transfer t(*_engine.broadcaster());
+ if (respond() == Status::SUCCESS) {
+ _engine.broadcaster()->message(_msg);
+ }
+}
+
+void
+Copy::undo(Interface& target)
+{
+ if (uri_is_path(_msg.new_uri)) {
+ target.del(_msg.new_uri);
+ }
+}
+
+} // namespace events
+} // namespace server
+} // namespace ingen