From 79887329f008ba184aac8d7c606859986a9ef20e Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Fri, 15 Aug 2008 05:15:31 +0000
Subject: Add primitive read-only HTTP interface (point browser to
 http://localhost:16180/).

git-svn-id: http://svn.drobilla.net/lad/ingen@1390 a436a847-0d15-0410-975c-d299462d15a1
---
 src/libs/engine/HTTPEngineReceiver.cpp | 125 +++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 src/libs/engine/HTTPEngineReceiver.cpp

(limited to 'src/libs/engine/HTTPEngineReceiver.cpp')

diff --git a/src/libs/engine/HTTPEngineReceiver.cpp b/src/libs/engine/HTTPEngineReceiver.cpp
new file mode 100644
index 00000000..baa522ba
--- /dev/null
+++ b/src/libs/engine/HTTPEngineReceiver.cpp
@@ -0,0 +1,125 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave 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 <iostream>
+#include <cstdlib>
+#include <string>
+#include "types.hpp"
+#include <raul/SharedPtr.hpp>
+#include <raul/AtomLiblo.hpp>
+#include "interface/ClientInterface.hpp"
+#include "engine/ThreadManager.hpp"
+#include "HTTPEngineReceiver.hpp"
+#include "QueuedEventSource.hpp"
+#include "ClientBroadcaster.hpp"
+#include "ObjectStore.hpp"
+
+using namespace std;
+
+namespace Ingen {
+
+
+HTTPEngineReceiver::HTTPEngineReceiver(Engine& engine, uint16_t port)
+	: QueuedEngineInterface(engine, 2, 2)
+	, _server(soup_server_new(SOUP_SERVER_PORT, port, NULL))
+{
+	_receive_thread = new ReceiveThread(*this);
+
+	soup_server_add_handler(_server, NULL, message_callback, this, NULL);
+
+	cout << "Started HTTP server on port " << soup_server_get_port(_server) << endl;
+	Thread::set_name("HTTP receiver");
+}
+
+
+HTTPEngineReceiver::~HTTPEngineReceiver()
+{
+	deactivate();
+
+	if (_server != NULL)  {
+		soup_server_quit(_server);
+		_server = NULL;
+	}
+}
+
+
+void
+HTTPEngineReceiver::activate()
+{
+	QueuedEventSource::activate();
+	_receive_thread->set_name("HTTP Receiver");
+	_receive_thread->start();
+}
+
+
+void
+HTTPEngineReceiver::deactivate()
+{
+	cout << "[HTTPEngineReceiver] Stopped HTTP listening thread" << endl;
+	_receive_thread->stop();
+	QueuedEventSource::deactivate();
+}
+
+
+void
+HTTPEngineReceiver::message_callback(SoupServer* server, SoupMessage* msg, const char* path,
+			GHashTable *query, SoupClientContext* client, void* data)
+{
+	HTTPEngineReceiver* me = (HTTPEngineReceiver*)data;
+
+	if (msg->method != SOUP_METHOD_GET) {
+		soup_message_set_status (msg, SOUP_STATUS_NOT_IMPLEMENTED);
+		return;
+	}
+	
+	// FIXME: not thread safe!
+
+	ObjectStore* store = me->_engine.object_store();
+	if (!Path::is_valid(path)) {
+		soup_message_set_status (msg, SOUP_STATUS_BAD_REQUEST);
+		return;
+	}
+	
+	ObjectStore::Objects::iterator start = store->find(path);
+	if (start == store->objects().end()) {
+		soup_message_set_status (msg, SOUP_STATUS_NOT_FOUND);
+		return;
+	}
+
+	ObjectStore::Objects::iterator end = store->objects().find_descendants_end(start);
+
+	string response;
+	for (ObjectStore::Objects::iterator i = start; i != end; ++i)
+		response.append(i->first).append("\n");
+
+	soup_message_set_status (msg, SOUP_STATUS_OK);
+	soup_message_set_response (msg, "text/plain", SOUP_MEMORY_COPY,
+			response.c_str(), response.length());
+}
+
+
+/** 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 Ingen
-- 
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