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-rw-r--r--src/server/HTTPEngineReceiver.cpp230
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diff --git a/src/server/HTTPEngineReceiver.cpp b/src/server/HTTPEngineReceiver.cpp
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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) 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 General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <cstdio>
+#include <cstdlib>
+#include <string>
+
+#include <boost/format.hpp>
+
+#include <libsoup/soup.h>
+
+#include "raul/SharedPtr.hpp"
+#include "raul/log.hpp"
+
+#include "ingen/ClientInterface.hpp"
+#include "shared/Module.hpp"
+#include "serialisation/Parser.hpp"
+#include "serialisation/Serialiser.hpp"
+
+#include "ClientBroadcaster.hpp"
+#include "Engine.hpp"
+#include "EngineStore.hpp"
+#include "EventSource.hpp"
+#include "HTTPClientSender.hpp"
+#include "HTTPEngineReceiver.hpp"
+#include "ThreadManager.hpp"
+
+#define LOG(s) s << "[HTTPEngineReceiver] "
+
+using namespace std;
+using namespace Raul;
+
+namespace Ingen {
+
+using namespace Serialisation;
+
+namespace Server {
+
+HTTPEngineReceiver::HTTPEngineReceiver(Engine& engine, uint16_t port)
+ : QueuedEngineInterface(engine, 64) // FIXME
+ , _server(soup_server_new(SOUP_SERVER_PORT, port, NULL))
+{
+ _receive_thread = new ReceiveThread(*this);
+
+ soup_server_add_handler(_server, NULL, message_callback, this, NULL);
+
+ LOG(info) << "Started HTTP server on port " << soup_server_get_port(_server) << endl;
+
+ if (!engine.world()->parser() || !engine.world()->serialiser())
+ engine.world()->load_module("serialisation");
+
+ Thread::set_name("HTTPEngineReceiver");
+ start();
+ _receive_thread->set_name("HTTPEngineReceiver Listener");
+ _receive_thread->start();
+}
+
+HTTPEngineReceiver::~HTTPEngineReceiver()
+{
+ _receive_thread->stop();
+ stop();
+ delete _receive_thread;
+
+ if (_server) {
+ soup_server_quit(_server);
+ _server = NULL;
+ }
+}
+
+void
+HTTPEngineReceiver::message_callback(SoupServer* server,
+ SoupMessage* msg,
+ const char* path_str,
+ GHashTable* query,
+ SoupClientContext* client,
+ void* data)
+{
+ HTTPEngineReceiver* me = (HTTPEngineReceiver*)data;
+
+ using namespace Ingen::Shared;
+
+ SharedPtr<Store> store = me->_engine.world()->store();
+ if (!store) {
+ soup_message_set_status(msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ string path = path_str;
+ if (path[path.length() - 1] == '/') {
+ path = path.substr(0, path.length()-1);
+ }
+
+ SharedPtr<Serialiser> serialiser = me->_engine.world()->serialiser();
+
+ const string base_uri = "path:/";
+ const char* mime_type = "text/plain";
+
+ // Special GET paths
+ if (msg->method == SOUP_METHOD_GET) {
+ if (path == Path::root().str() || path.empty()) {
+ const string r = string("@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n")
+ .append("\n<> rdfs:seeAlso <plugins> ;")
+ .append("\n rdfs:seeAlso <stream> ;")
+ .append("\n rdfs:seeAlso <patch> .");
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+ soup_message_set_response(msg, mime_type, SOUP_MEMORY_COPY, r.c_str(), r.length());
+ return;
+
+ } else if (msg->method == SOUP_METHOD_GET && path.substr(0, 8) == "/plugins") {
+ // FIXME: kludge
+ #if 0
+ me->get("ingen:plugins");
+ me->_receive_thread->whip();
+
+ serialiser->start_to_string("/", base_uri);
+ for (NodeFactory::Plugins::const_iterator p = me->_engine.node_factory()->plugins().begin();
+ p != me->_engine.node_factory()->plugins().end(); ++p)
+ serialiser->serialise_plugin(*(Shared::Plugin*)p->second);
+ const string r = serialiser->finish();
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+ soup_message_set_response(msg, mime_type, SOUP_MEMORY_COPY, r.c_str(), r.length());
+ #endif
+ return;
+
+ } else if (path.substr(0, 6) == "/patch") {
+ path = '/' + path.substr(6);
+ if (path.substr(0, 2) == "//")
+ path = path.substr(1);
+
+ } else if (path.substr(0, 7) == "/stream") {
+ HTTPClientSender* client = new HTTPClientSender(me->_engine);
+ me->register_client(client);
+
+ // Respond with port number of stream for client
+ const int port = client->listen_port();
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%d", port);
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+ soup_message_set_response(msg, mime_type, SOUP_MEMORY_COPY, buf, strlen(buf));
+ return;
+ }
+ }
+
+ if (!Path::is_valid(path)) {
+ LOG(error) << "Bad HTTP path: " << path << endl;
+ soup_message_set_status(msg, SOUP_STATUS_BAD_REQUEST);
+ const string& err = (boost::format("Bad path: %1%") % path).str();
+ soup_message_set_response(msg, "text/plain", SOUP_MEMORY_COPY,
+ err.c_str(), err.length());
+ return;
+ }
+
+ if (msg->method == SOUP_METHOD_GET) {
+ Glib::RWLock::ReaderLock lock(store->lock());
+
+ // Find object
+ Store::const_iterator start = store->find(path);
+ if (start == store->end()) {
+ soup_message_set_status(msg, SOUP_STATUS_NOT_FOUND);
+ const string& err = (boost::format("No such object: %1%") % path).str();
+ soup_message_set_response(msg, "text/plain", SOUP_MEMORY_COPY,
+ err.c_str(), err.length());
+ return;
+ }
+
+ // Get serialiser
+ SharedPtr<Serialiser> serialiser = me->_engine.world()->serialiser();
+ if (!serialiser) {
+ soup_message_set_status(msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
+ soup_message_set_response(msg, "text/plain", SOUP_MEMORY_STATIC,
+ "No serialiser available\n", 24);
+ return;
+ }
+
+ // Serialise object
+ const string response = serialiser->to_string(start->second,
+ "http://localhost:16180/patch", GraphObject::Properties());
+
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+ soup_message_set_response(msg, mime_type, SOUP_MEMORY_COPY,
+ response.c_str(), response.length());
+
+ } else if (msg->method == SOUP_METHOD_PUT) {
+ Glib::RWLock::WriterLock lock(store->lock());
+
+ // Get parser
+ SharedPtr<Parser> parser = me->_engine.world()->parser();
+ if (!parser) {
+ soup_message_set_status(msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ parser->parse_string(me->_engine.world(), me, msg->request_body->data, base_uri);
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+
+ } else if (msg->method == SOUP_METHOD_DELETE) {
+ me->del(path);
+ soup_message_set_status(msg, SOUP_STATUS_OK);
+
+ } else {
+ soup_message_set_status(msg, SOUP_STATUS_NOT_IMPLEMENTED);
+ }
+}
+
+/** Override the semaphore driven _run method of QueuedEngineInterface
+ * to wait on HTTP requests and process them immediately in this thread.
+ */
+void
+HTTPEngineReceiver::ReceiveThread::_run()
+{
+ soup_server_run(_receiver._server);
+}
+
+} // namespace Server
+} // namespace Ingen
+
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