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Diffstat (limited to 'src/http/HTTPClientReceiver.cpp')
| -rw-r--r-- | src/http/HTTPClientReceiver.cpp | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/http/HTTPClientReceiver.cpp b/src/http/HTTPClientReceiver.cpp new file mode 100644 index 00000000..0ec5aaa4 --- /dev/null +++ b/src/http/HTTPClientReceiver.cpp @@ -0,0 +1,241 @@ +/* This file is part of Ingen. + * Copyright 2008-2011 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 <assert.h> +#include <errno.h> +#include <string.h> +#include <sys/socket.h> + +#include <libsoup/soup.h> + +#include "ingen/shared/World.hpp" +#include "raul/log.hpp" + +#include "HTTPClientReceiver.hpp" + +#define LOG(s) s << "[HTTPClientReceiver] " + +using namespace std; +using namespace Raul; + +namespace Ingen { + +using namespace Serialisation; + +namespace Client { + +static SoupSession* client_session = NULL; +static HTTPClientReceiver* client_receiver = NULL; + +HTTPClientReceiver::HTTPClientReceiver( + Shared::World* world, + const std::string& url, + SharedPtr<ClientInterface> target) + : _target(target) + , _world(world) + , _url(url) +{ + start(false); + client_receiver = this; +} + +HTTPClientReceiver::~HTTPClientReceiver() +{ + stop(); + if (client_receiver == this) + client_receiver = NULL; +} + +HTTPClientReceiver::Listener::Listener(HTTPClientReceiver* receiver, const std::string& uri) + : _uri(uri) + , _receiver(receiver) +{ + const string port_str = uri.substr(uri.find_last_of(":")+1); + int port = atoi(port_str.c_str()); + + LOG(info) << "Client HTTP listen: " << uri << " (port " << port << ")" << endl; + + struct sockaddr_in servaddr; + + // Create listen address + memset(&servaddr, 0, sizeof(servaddr)); + servaddr.sin_family = AF_INET; + servaddr.sin_port = htons(port); + + // Create listen socket + if ((_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { + LOG(error) << "Error creating listening socket: %s" << strerror(errno) << endl; + _sock = -1; + return; + } + + // Set remote address (FIXME: always localhost) + if (inet_aton("127.0.0.1", &servaddr.sin_addr) <= 0) { + LOG(error) << "Invalid remote IP address" << endl; + _sock = -1; + return; + } + + // Connect to server + if (connect(_sock, (struct sockaddr*)&servaddr, sizeof(servaddr)) < 0) { + LOG(error) << "Error calling connect: " << strerror(errno) << endl; + _sock = -1; + return; + } +} + +HTTPClientReceiver::Listener::~Listener() +{ + close(_sock); +} + +void +HTTPClientReceiver::send(SoupMessage* msg) +{ + if (!client_session) { + LOG(debug) << "Starting session" << endl; + client_session = soup_session_sync_new(); + } + + assert(SOUP_IS_MESSAGE(msg)); + soup_session_queue_message(client_session, msg, message_callback, client_receiver); +} + +void +HTTPClientReceiver::close_session() +{ + if (client_session) { + SoupSession* s = client_session; + client_session = NULL; + soup_session_abort(s); + } +} + +void +HTTPClientReceiver::update(const std::string& str) +{ + //LOG(info) << _world->parser()->parse_update(_world, _target.get(), str, _url); +} + +void +HTTPClientReceiver::Listener::_run() +{ + char in = '\0'; + char last = '\0'; + char llast = '\0'; + string recv; + + while (true) { + while (read(_sock, &in, 1) > 0 ) { + recv += in; + if (in == '\n' && last == '\n' && llast == '\n') { + if (!recv.empty()) { + _receiver->update(recv); + recv.clear(); + last = '\0'; + llast = '\0'; + } + break; + } + llast = last; + last = in; + } + } + + LOG(info) << "HTTP listener finished" << endl; +} + +void +HTTPClientReceiver::message_callback(SoupSession* session, SoupMessage* msg, void* ptr) +{ + if (ptr == NULL) + return; + + HTTPClientReceiver* me = (HTTPClientReceiver*)ptr; + const string path = soup_message_get_uri(msg)->path; + + if (msg->response_body->data == NULL) { + LOG(error) << "Empty client message" << endl; + return; + } + + if (path == "/") { + me->_target->response_ok(0); + + } else if (path == "/plugins") { + if (msg->response_body->data == NULL) { + LOG(error) << "Empty response" << endl; + } else { + Glib::Mutex::Lock lock(me->_mutex); + me->_target->response_ok(0); + me->_world->parser()->parse_string(me->_world, me->_target.get(), + Glib::ustring(msg->response_body->data), me->_url); + } + + } else if (path.substr(0, 6) == "/patch") { + if (msg->response_body->data == NULL) { + LOG(error) << "Empty response" << endl; + } else { + Glib::Mutex::Lock lock(me->_mutex); + me->_target->response_ok(0); + me->_world->parser()->parse_string( + me->_world, + me->_target.get(), + Glib::ustring(msg->response_body->data), + path); + } + + } else if (path == "/stream") { + if (msg->response_body->data == NULL) { + LOG(error) << "Empty response" << endl; + } else { + Glib::Mutex::Lock lock(me->_mutex); + string uri = string(soup_uri_to_string(soup_message_get_uri(msg), false)); + uri = uri.substr(0, uri.find_last_of(":")); + uri += string(":") + msg->response_body->data; + LOG(info) << "Stream URI: " << uri << endl; + me->_listener = boost::shared_ptr<Listener>(new Listener(me, uri)); + me->_listener->start(); + } + + } else { + LOG(error) << "Unknown message: " << path << endl; + me->update(msg->response_body->data); + } +} + +void +HTTPClientReceiver::start(bool dump) +{ + if (!_world->parser()) + _world->load_module("serialisation"); + + SoupMessage* msg = soup_message_new("GET", (_url + "/stream").c_str()); + assert(SOUP_IS_MESSAGE(msg)); + soup_session_queue_message(client_session, msg, message_callback, this); +} + +void +HTTPClientReceiver::stop() +{ + //unregister_client(); + close_session(); +} + +} // namespace Client +} // namespace Ingen + |