///
/// Run when new connection is accepted
///
/// @param memory_pool_ptr shared pointer to the allocated memory poll for connections
/// @param i_connect index of current connection in memory pool
/// @param e reference to error object
///
void T_server::handle_accept( T_memory_pool_ptr memory_pool_ptr, size_t i_connect, const boost::system::error_code& e) {
try {
if (!e) {
std::cout << "handle_accept() \n";
// get pointer of current connection
T_connection * const current_memory_pool_raw_ptr = reinterpret_cast<T_connection *>( memory_pool_ptr.get() );
T_connection * const current_connection_raw_ptr = &(current_memory_pool_raw_ptr[i_connect]);
T_connection::T_shared_this current_connection_ptr(memory_pool_ptr, current_connection_raw_ptr );
// schedule new task to thread pool
current_connection_raw_ptr->run(boost::move(current_connection_ptr)); // sync launch of short-task: run()
// increment index of connections
++i_connect;
// if the limit of connections in the memory pool have been reached, then create a new memory pool
if(i_connect == connections_in_memory_pool) {
i_connect = 0;
memory_pool_ptr.reset(new T_memory_pool, T_memory_pool_deleter() );
}
// create next connection, that will accepted
T_connection * const new_memory_pool_raw_ptr = reinterpret_cast<T_connection *>( memory_pool_ptr.get() );
T_connection * const new_connection_raw_ptr =
T_connection::create(file_name_, new_memory_pool_raw_ptr, i_connect, io_service_executors_, timeout_);
// start new accept operation
acceptor_.async_accept(new_connection_raw_ptr->socket(),
new_connection_raw_ptr->client_bind(
boost::bind(&T_server::handle_accept, this,
boost::move(memory_pool_ptr), // doesn't copy and doesn't use the atomic counter with memory barrier
i_connect,
ba::placeholders::error)) );
}
} catch(const seh::T_seh_exception& e) {
std::cerr << "T_seh_exception: " << e.what() << "\n ->throw place: " << THROW_PLACE << std::endl;
} catch(const bs::system_error& e) {
std::cerr << "Boost system_error exception: " << e.what() << "\n ->throw place: " << THROW_PLACE << std::endl;
} catch(const std::exception &e) {
std::cerr << "Exception: " << e.what() << "\n ->throw place: " << THROW_PLACE << std::endl;
} catch(...) {
std::cerr << "Unknown exception!" << "\n ->throw place: " << THROW_PLACE << std::endl;
}
}
void Connection::handle_read(const boost::system::error_code& e, size_t bytes_transferred,
boost::tuple<ErrorHandler,Handler> handler, boost::shared_ptr<Connection> conn)
{
try
{
if (e)
{
boost::get<0>(handler)(e);
}
else
{
int originalSize = inbound_data_.size();
inbound_data_.resize(originalSize + bytes_transferred);
int buffSize = originalSize + bytes_transferred;
std::cout << originalSize << "+" << bytes_transferred << "=" << buffSize << std::endl;
std::memcpy(&inbound_data_[originalSize],&inbound_buffer_[0],bytes_transferred);
while(buffSize>=HEADER_SIZE) { // this means we have at least a header in our buffer
int sz = inbound_data_[3];
sz = (sz << 8) | inbound_data_[2];
sz = (sz << 8) | inbound_data_[1];
sz = (sz << 8) | inbound_data_[0];
if(buffSize>=HEADER_SIZE+sz) { // we have a full message to parse!
std::string archive_data(&inbound_data_[HEADER_SIZE], sz);
Json::Value value;
std::cout << archive_data << std::endl;
if(reader.parse(archive_data,value))
{
boost::get<1>(handler)(value);
}
if(HEADER_SIZE+sz<buffSize) {
std::copy(&inbound_data_[HEADER_SIZE+sz],&inbound_data_[buffSize],&inbound_data_[0]);
buffSize-=HEADER_SIZE+sz;
} else {
inbound_data_.clear();
buffSize = 0;
}
inbound_buffer_.resize(4);
} else {
inbound_buffer_.resize(sz);
}
}
std::cout << "async read again: " << inbound_buffer_.size() << std::endl;
boost::asio::async_read(socket_, boost::asio::buffer(inbound_buffer_),
boost::bind(&Connection::handle_read,
this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred,
handler,conn));
}
}
catch(std::exception& e)
{
std::cout << "Connection::handle_read_header: " << e.what() << std::endl;
}
}
void Server::accept_handler(socket_ptr _sock, const boost::system::error_code& e) {
if ( !e ) {
try {
boost::thread(boost::bind( &Server::connection, this, _sock));
//thread( &Server::connection, this, _sock);
}
catch(exception& e) {
CLOG_ERROR << "Exception: " << e.what() << endl;
}
}
async_accept();
}
void RpcSessionNetHandler::sessionReadError( JMEngine::net::TcpSession::TcpSessionPtr session, boost::system::error_code e )
{
try
{
session->stop();
LOGW("Rpc client from [ %s:%s ] disconnected", session->getIp(), session->getPort());
}
catch(boost::system::system_error e)
{
LOGE("error ==> [ %d:%s ]", e.code().value(), e.what());
}
}
void PeerManager::callback(const boost::system::error_code &e)
{
try {
uint32_t minPeers = std::stoi(m_ctx.getDatabase()->getConfigValue("min_peers"));
uint32_t numPeers = m_ctx.getOutMsgDisp().getTransport()->numPeers();
I2P_LOG(m_log, debug) << "current number of peers: " << numPeers;
I2P_LOG(m_log, debug) << boost::log::add_value("peers", (uint32_t) numPeers);
int32_t gap = minPeers - numPeers;
for(int32_t i = 0; i < gap; i++)
m_ctx.getOutMsgDisp().getTransport()->connect(m_ctx.getProfileManager().getPeer());
} catch(std::exception &e) {
I2P_LOG(m_log, error) << "exception in PeerManager: " << e.what();
}
if ( ! m_graceful ) {
m_timer.expires_at(m_timer.expires_at() + boost::posix_time::time_duration(0, 0, 10));
m_timer.async_wait(boost::bind(&PeerManager::callback, this, boost::asio::placeholders::error));
}
}
////////////////////////////////////////////////////////////////////////////////
/// This is the main communication engine.
///
/// @IO
/// At every timestep, a message is sent to the FPGA via TCP socket
/// connection, then a message is retrieved from FPGA via the same
/// connection. On the FPGA side, it's the reverse order -- receive and
/// then send. Both DGI and FPGA receive functions will block until a
/// message arrives, creating a synchronous, lock-step communication between
/// DGI and the FPGA. We keep the timestep (a static member of CRtdsAdapter)
/// very small so that how frequently send and receive get executed is
/// dependent on how fast the FPGA runs.
///
/// @Error_Handling
/// Throws std::runtime_error if reading from or writing to socket fails.
///
/// @pre Connection with FPGA is established.
///
/// @post All values in the receive buffer are sent to the FPGA. All values in
/// the send buffer are updated with data from the FPGA.
///
/// @limitations This function uses synchronous communication.
////////////////////////////////////////////////////////////////////////////////
void CRtdsAdapter::Run(const boost::system::error_code & e)
{
Logger.Trace << __PRETTY_FUNCTION__ << std::endl;
if( e )
{
if (e == boost::asio::error::operation_aborted)
{
return;
}
else
{
Logger.Fatal << "Run called with error: " << e.message()
<< std::endl;
throw boost::system::system_error(e);
}
}
// Always send data to FPGA first
if( !m_txBuffer.empty() )
{
boost::unique_lock<boost::shared_mutex> writeLock(m_txMutex);
Logger.Debug << "Obtained the txBuffer mutex." << std::endl;
EndianSwapIfNeeded(m_txBuffer);
try
{
Logger.Debug << "Blocking for a socket write call." << std::endl;
TimedWrite(m_socket, boost::asio::buffer(m_txBuffer,
m_txBuffer.size() * sizeof(SignalValue)),
CTimings::Get("DEV_SOCKET_TIMEOUT"));
}
catch(boost::system::system_error & e)
{
Logger.Fatal << "Send to FPGA failed: " << e.what();
throw;
}
EndianSwapIfNeeded(m_txBuffer);
Logger.Debug << "Releasing the txBuffer mutex." << std::endl;
}
// Receive data from FPGA next
if( !m_rxBuffer.empty() )
{
// must be a unique_lock for endian swaps
boost::unique_lock<boost::shared_mutex> writeLock(m_rxMutex);
Logger.Debug << "Obtained the rxBuffer mutex." << std::endl;
try
{
Logger.Debug << "Blocking for a socket read call." << std::endl;
TimedRead(m_socket, boost::asio::buffer(m_rxBuffer,
m_rxBuffer.size() * sizeof(SignalValue)),
CTimings::Get("DEV_SOCKET_TIMEOUT"));
}
catch (boost::system::system_error & e)
{
Logger.Fatal << "Receive from FPGA failed: " << e.what();
throw;
}
EndianSwapIfNeeded(m_rxBuffer);
if( m_buffer_initialized == false )
{
m_buffer_initialized = true;
for( unsigned int i = 0; i < m_rxBuffer.size(); i++ )
{
if( m_rxBuffer[i] == NULL_COMMAND )
{
m_buffer_initialized = false;
}
}
if( m_buffer_initialized )
{
Logger.Status << "Clientdata : " <<m_rxBuffer[0]<< std::endl;
RevealDevices();
}
}
Logger.Debug << "Releasing the rxBuffer mutex." << std::endl;
}
// Start the timer; on timeout, this function is called again
m_runTimer.expires_from_now(
boost::posix_time::milliseconds(CTimings::Get("DEV_RTDS_DELAY")));
m_runTimer.async_wait(boost::bind(&CRtdsAdapter::Run, shared_from_this(),
boost::asio::placeholders::error));
}
void handler(const boost::system::error_code& e, std::size_t size)
{
sensor_msgs::Imu imu;
tf::Quaternion q;
//using namespace serialization;
namespace mt = ros::message_traits;
if (!e)
{
std::istream is(&b);
std::string line;
std::getline(is, line);
// cout <<"read:"<<size<<"###"<< line << endl;
std::list<std::string> stringList;
std::vector<std::string> list2;
//boost::iter_split(stringList, line, boost::first_finder(","));
try
{
boost::iter_split(list2, line, boost::first_finder(","));
}
catch (...)
{
cout << "bad" << endl;
return;
}
if (list2.size() >= 6)
{
try
{
cout << "x:" << list2.at(4) << "\ty:" << list2.at(5) << "\tz:" << list2.at(6) << endl;
cout << "gx:" << list2.at(8) << "\tgy:" << list2.at(9) << "\tgz:" << list2.at(10) << endl;
/* auto q= tf::createQuaternionFromRPY(boost::lexical_cast<double>(list2.at(8)), boost::lexical_cast<double>(list2.at(9)),
boost::lexical_cast<double>(list2.at(10)));
*/
imu.orientation = tf::createQuaternionMsgFromRollPitchYaw(boost::lexical_cast<double>(list2.at(8)), boost::lexical_cast<double>(list2.at(9)),
boost::lexical_cast<double>(list2.at(10)));
/* imu.orientation.x = q.x();
imu.orientation.y = q.y();
imu.orientation.z = q.z();
imu.orientation.w = q.w();*/
imu.linear_acceleration.x = boost::lexical_cast<double>(list2.at(4));
imu.linear_acceleration.y = boost::lexical_cast<double>(list2.at(5));
imu.linear_acceleration.z = boost::lexical_cast<double>(list2.at(6));
//ROS_ASSERT_MSG(impl_->md5sum_ == "*" || std::string(mt::md5sum<M>(*message)) == "*" || impl_->md5sum_ == mt::md5sum<M>(*message),
// printf("Trying to publish message of type [%s/%s] on a publisher with type [%s/%s]",
// mt::datatype<sensor_msgs::Imu>(*imu), mt::md5sum<sensor_msgs::Imu>(*message),
// imu.datatype_.c_str(), impl_->md5sum_.c_str());
// imu_pub.publish(imu);
}
catch (exception &e)
{
cout << "***" << e.what() << "***" << endl;
cout << "---->" << line << endl;
cout << "boom size:" << list2.size() << " line:"<<line<< " insize:"<<size<<endl;
}
}
/*BOOST_FOREACH(std::string token, stringList)
{
std::cout << token << '\n'; ;
}
*/
}
}
void swd::connection::handle_read(const boost::system::error_code& e,
std::size_t bytes_transferred) {
/**
* If an error occurs then no new asynchronous operations are started. This
* means that all shared_ptr references to the connection object will disappear
* and the object will be destroyed automatically after this handler returns.
* The connection class's destructor closes the socket.
*/
if (e) {
return;
}
/**
* Since there was no error we can start parsing the input now. The parser
* fills the object request_ with data.
*/
boost::tribool result;
boost::tie(result, boost::tuples::ignore) =
request_parser_.parse(
request_,
buffer_.data(),
buffer_.data() + bytes_transferred
);
/**
* If result is true the complete request is parsed. If it is false there was
* an error. If it is indeterminate then the parsing is not complete yet and
* the program will read more input and append it to the old request_ object.
*/
if (indeterminate(result)) {
/* Not finished yet with this request, start reading again. */
this->start_read();
/* And don't process the input yet. */
return;
}
/* The handler used to process the reply. */
swd::reply_handler reply_handler(reply_);
try {
if (!result) {
swd::log::i()->send(swd::warning, "Bad request from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
/* Try to add a profile for the request. */
try {
swd::profile_ptr profile = swd::database::i()->get_profile(
remote_address_.to_string(),
request_->get_profile_id()
);
request_->set_profile(profile);
} catch (swd::exceptions::database_exception& e) {
swd::log::i()->send(swd::uncritical_error, e.what());
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
/* The handler used to process the incoming request. */
swd::request_handler request_handler(request_);
/* Only continue processing the reply if it is signed correctly. */
if (!request_handler.valid_signature()) {
swd::log::i()->send(swd::warning, "Bad signature from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_SIGNATURE);
}
/**
* Before the request can be processed the input has to be transfered
* from the encoded json string to a swd::parameters list.
*/
if (!request_handler.decode()) {
swd::log::i()->send(swd::warning, "Bad json from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_JSON);
}
/* Process the request. */
std::vector<std::string> threats;
try {
if (swd::database::i()->is_flooding(request_->get_client_ip(), request_->get_profile_id())) {
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
threats = request_handler.process();
} catch (swd::exceptions::database_exception& e) {
swd::log::i()->send(swd::uncritical_error, e.what());
/**
* Problems with the database result in a bad request. If protection
* is enabled access to the site will not be granted.
*/
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
if (!threats.empty()) {
reply_->set_threats(threats);
reply_->set_status(STATUS_ATTACK);
} else {
reply_->set_status(STATUS_OK);
}
} catch(swd::exceptions::connection_exception& e) {
reply_->set_status(e.code());
}
/* Encode the reply. */
reply_handler.encode();
/* Send the answer to the client. */
if (ssl_) {
boost::asio::async_write(
ssl_socket_,
reply_->to_buffers(),
strand_.wrap(
boost::bind(
&connection::handle_write,
shared_from_this(),
boost::asio::placeholders::error
)
)
);
} else {
boost::asio::async_write(
socket_,
reply_->to_buffers(),
strand_.wrap(
boost::bind(
&connection::handle_write,
shared_from_this(),
boost::asio::placeholders::error
)
)
);
}
}
void server_session::handle_read_handshake(const boost::system::error_code& e,
std::size_t bytes_transferred) {
std::ostringstream line;
line << &m_buf;
m_raw_client_handshake += line.str();
access_log(m_raw_client_handshake,ALOG_HANDSHAKE);
std::vector<std::string> tokens;
std::string::size_type start = 0;
std::string::size_type end;
// Get request and parse headers
end = m_raw_client_handshake.find("\r\n",start);
while(end != std::string::npos) {
tokens.push_back(m_raw_client_handshake.substr(start, end - start));
start = end + 2;
end = m_raw_client_handshake.find("\r\n",start);
}
for (size_t i = 0; i < tokens.size(); i++) {
if (i == 0) {
m_client_http_request = tokens[i];
}
end = tokens[i].find(": ",0);
if (end != std::string::npos) {
std::string h = tokens[i].substr(0,end);
if (get_client_header(h) == "") {
m_client_headers[h] = tokens[i].substr(end+2);
} else {
m_client_headers[h] += ", " + tokens[i].substr(end+2);
}
}
}
// handshake error checking
try {
std::stringstream err;
std::string h;
// check the method
if (m_client_http_request.substr(0,4) != "GET ") {
err << "Websocket handshake has invalid method: "
<< m_client_http_request.substr(0,4);
throw(handshake_error(err.str(),400));
}
// check the HTTP version
// TODO: allow versions greater than 1.1
end = m_client_http_request.find(" HTTP/1.1",4);
if (end == std::string::npos) {
err << "Websocket handshake has invalid HTTP version";
throw(handshake_error(err.str(),400));
}
m_resource = m_client_http_request.substr(4,end-4);
// verify the presence of required headers
h = get_client_header("Host");
if (h == "") {
throw(handshake_error("Required Host header is missing",400));
} else if (!m_server->validate_host(h)) {
err << "Host " << h << " is not one of this server's names.";
throw(handshake_error(err.str(),400));
}
h = get_client_header("Upgrade");
if (h == "") {
throw(handshake_error("Required Upgrade header is missing",400));
} else if (!boost::iequals(h,"websocket")) {
err << "Upgrade header was " << h << " instead of \"websocket\"";
throw(handshake_error(err.str(),400));
}
h = get_client_header("Connection");
if (h == "") {
throw(handshake_error("Required Connection header is missing",400));
} else if (!boost::ifind_first(h,"upgrade")) {
err << "Connection header, \"" << h
<< "\", does not contain required token \"upgrade\"";
throw(handshake_error(err.str(),400));
}
if (get_client_header("Sec-WebSocket-Key") == "") {
throw(handshake_error("Required Sec-WebSocket-Key header is missing",400));
}
h = get_client_header("Sec-WebSocket-Version");
if (h == "") {
throw(handshake_error("Required Sec-WebSocket-Version header is missing",400));
} else {
m_version = atoi(h.c_str());
if (m_version != 7 && m_version != 8 && m_version != 13) {
err << "This server doesn't support WebSocket protocol version "
<< m_version;
throw(handshake_error(err.str(),400));
}
}
if (m_version < 13) {
h = get_client_header("Sec-WebSocket-Origin");
} else {
h = get_client_header("Origin");
}
if (h != "") {
m_client_origin = h;
}
// TODO: extract subprotocols
// TODO: extract extensions
// optional headers (delegated to the local interface)
if (m_local_interface) {
m_local_interface->validate(shared_from_this());
}
m_server_http_code = 101;
m_server_http_string = "Switching Protocols";
} catch (const handshake_error& e) {
std::stringstream err;
err << "Caught handshake exception: " << e.what();
access_log(e.what(),ALOG_HANDSHAKE);
log(err.str(),LOG_ERROR);
m_server_http_code = e.m_http_error_code;
m_server_http_string = e.m_http_error_msg;
}
write_handshake();
}
void tcp_socket_session::handle_async_read(
const boost::system::error_code& error,
std::size_t bytes_transferred)
{
if (error)
{
if (error == boost::asio::error::operation_aborted ||
!peer_sock.is_open())
{
return;
}
terminate();
if (error != boost::asio::error::eof &&
error != boost::asio::error::connection_reset)
{
std::cout << "TCP read error: " << error.message() << std::endl;
}
return;
}
if ((std::chrono::steady_clock::now() - timeout_timestamp) >=
tcp_socket_session::TIMEOUT_LENGTH)
{
netstring_buffer.clear();
}
netstring_buffer.append(buffer.begin(), buffer.begin()+bytes_transferred);
int netstring_length;
std::string parsed_message;
while (netstring_buffer.length() > 0)
{
try
{
netstring_length =
utils::netstring::parse(netstring_buffer, parsed_message);
}
catch (utils::netstring_error& error)
{
write(error.what());
netstring_buffer.clear();
break;
}
// Zero or more bytes have been processed
if (netstring_length >= 0)
{
try
{
msg_center->process(this_session, parsed_message);
}
catch (const messaging::session_interface::process_error& e)
{
std::cout << "Error processing incoming message: ";
std::cout << e.what() << std::endl;
}
netstring_buffer.erase(0, netstring_length);
}
// More bytes are needed to process a valid string
else
{
break;
}
}
if (netstring_buffer.length() > 0)
{
timeout_timestamp = std::chrono::steady_clock::now();
}
start_async_read();
}
void AsioServer::handleAccept(const boost::system::error_code& e){
LOG_DEBUG("AsioServer::handleAccept => accept a connection");
ConnectionPtr acceptConnection = newConnection_;
newConnection_ = newConnection();
acceptor_.async_accept(newConnection_->getSocket(),
boost::bind(&AsioServer::handleAccept, this,
boost::asio::placeholders::error));
LOG_DEBUG("AsioServer::handleAccept => wait a new connection : cid = %d" , newConnection_->getId());
if(!e){
try{
acceptConnection->open();
LOG_DEBUG("AsioServer::handleAccept => new connection start : cid = %d" , acceptConnection->getId());
} catch (exception &e){
LOG_ERROR("AsioServer::handleAccept => new connection start error : what = %s" , e.what());
}
} else {
LOG_ERROR("AsioServer::handleAccept => error : " , e.message().c_str());
}
}
void swd::connection::handle_read(const boost::system::error_code& e,
std::size_t bytes_transferred) {
/**
* If an error occurs then no new asynchronous operations are started. This
* means that all shared_ptr references to the connection object will disappear
* and the object will be destroyed automatically after this handler returns.
* The connection class's destructor closes the socket.
*/
if (e) {
return;
}
/**
* Since there was no error we can start parsing the input now. The parser
* fills the object request_ with data.
*/
boost::tribool result;
boost::tie(result, boost::tuples::ignore) =
request_parser_.parse(
request_,
buffer_.data(),
buffer_.data() + bytes_transferred
);
/**
* If result is true the complete request is parsed. If it is false there was
* an error. If it is indeterminate then the parsing is not complete yet and
* the program will read more input and append it to the old request_ object.
*/
if (indeterminate(result)) {
/* Not finished yet with this request, start reading again. */
this->start_read();
/* And don't process the input yet. */
return;
}
/* The handler used to process the reply. */
swd::reply_handler reply_handler(reply_);
try {
if (!result) {
swd::log::i()->send(swd::warning, "Bad request from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
/* Try to add a profile for the request. */
try {
swd::profile_ptr profile = database_->get_profile(
remote_address_.to_string(),
request_->get_profile_id()
);
request_->set_profile(profile);
} catch (swd::exceptions::database_exception& e) {
swd::log::i()->send(swd::uncritical_error, e.what());
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
/* The handler used to process the incoming request. */
swd::request_handler request_handler(request_, cache_, storage_);
/* Only continue processing the reply if it is signed correctly. */
if (!request_handler.valid_signature()) {
swd::log::i()->send(swd::warning, "Bad signature from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_SIGNATURE);
}
/**
* Before the request can be processed the input has to be transfered
* from the encoded json string to a swd::parameters list.
*/
if (!request_handler.decode()) {
swd::log::i()->send(swd::warning, "Bad json from "
+ remote_address_.to_string());
throw swd::exceptions::connection_exception(STATUS_BAD_JSON);
}
/* Check profile for outdated cache. */
swd::profile_ptr profile = request_->get_profile();
if (profile->is_cache_outdated()) {
cache_->reset(profile->get_id());
}
/* Process the request. */
std::vector<std::string> threats;
try {
swd::parameters parameters = request_->get_parameters();
/**
* Check security limitations first.
*/
int max_params = swd::config::i()->get<int>("max-parameters");
if ((max_params > -1) && (parameters.size() > max_params)) {
swd::log::i()->send(swd::notice, "Too many parameters");
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
int max_length_path = swd::config::i()->get<int>("max-length-path");
int max_length_value = swd::config::i()->get<int>("max-length-value");
if ((max_length_path > -1) || (max_length_value > -1)) {
for (swd::parameters::iterator it_parameter = parameters.begin();
it_parameter != parameters.end(); it_parameter++) {
swd::parameter_ptr parameter(*it_parameter);
if ((max_length_path > -1) && (parameter->get_path().length() > max_length_path)) {
swd::log::i()->send(swd::notice, "Too long parameter path");
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
if ((max_length_value > -1) && (parameter->get_value().length() > max_length_value)) {
swd::log::i()->send(swd::notice, "Too long parameter value");
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
}
}
if (profile->is_flooding_enabled()) {
if (database_->is_flooding(request_->get_client_ip(), profile->get_id())) {
swd::log::i()->send(swd::notice, "Too many requests");
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
}
/* Time to analyze the request. */
request_handler.process();
} catch (swd::exceptions::database_exception& e) {
swd::log::i()->send(swd::uncritical_error, e.what());
/**
* Problems with the database result in a bad request. If protection
* is enabled access to the site will not be granted.
*/
throw swd::exceptions::connection_exception(STATUS_BAD_REQUEST);
}
if (profile->get_mode() == MODE_ACTIVE) {
if (request_->is_threat()) {
reply_->set_status(STATUS_CRITICAL_ATTACK);
} else if (request_->has_threats()) {
reply_->set_threats(request_handler.get_threats());
reply_->set_status(STATUS_ATTACK);
} else {
reply_->set_status(STATUS_OK);
}
} else {
reply_->set_status(STATUS_OK);
}
} catch(swd::exceptions::connection_exception& e) {
if (!request_->get_profile()) {
reply_->set_status(STATUS_BAD_REQUEST);
} else if (request_->get_profile()->get_mode() == MODE_ACTIVE) {
reply_->set_status(e.code());
} else {
reply_->set_status(STATUS_OK);
}
}
/* Encode the reply. */
reply_handler.encode();
/* Send the answer to the client. */
if (ssl_) {
boost::asio::async_write(
ssl_socket_,
reply_->to_buffers(),
strand_.wrap(
boost::bind(
&connection::handle_write,
shared_from_this(),
boost::asio::placeholders::error
)
)
);
} else {
boost::asio::async_write(
socket_,
reply_->to_buffers(),
strand_.wrap(
boost::bind(
&connection::handle_write,
shared_from_this(),
boost::asio::placeholders::error
)
)
);
}
}
void connection::handle_read(const boost::system::error_code& e,
std::size_t bytes_transferred)
{
if (!e)
{
if (bytes_transferred != size)
{
this->client_->m_main->consoleLogger->information(Poco::format("Did not receive proper amount of bytes : rcv: %?d needed: %?d", bytes_transferred, size));
server.stop(shared_from_this());
return;
}
char * t = buffer_.data();
if ((*(int8_t*)t != 0x0a) && (*(int8_t*)(t+1) != 0x0b) && (*(int8_t*)(t+2) != 0x01))
{
server.consoleLogger->information(Poco::format("Not an AMF3 object - ip:%s", address));
server.stop(shared_from_this());
return;
}
//printf("uid("XI64")\n", uid);
// read object size
if ((size > MAXPACKETSIZE) || (size <= 0))
{
//ERROR - object too large - close connection
server.stop(shared_from_this());
return;
}
//TODO: Decision: have socket read thread handle packets, or push into a queue
//socket thread (easy, already done)
// PRO: typically instant response times due to it being processed as it comes in
// CON: a large request (legit or non) would cause the socket read thread to lag
//
//process thread (complex, ideally better)
// PRO: can alleviate lag on socket threads and create multiple thread processing queues depending on importance
// CON: complexity and large requests would typically land in the same thread (causing even more lag for them) unless
// made even more complex to have multiple threads for large requests
//
//Option 3: Evony style
// -- create a process thread per x amount of sockets
// PRO: lag from one client only affects a set amount of players and not the entire server
// CON: quite complex. is ultimately the process thread option only for x amount of sockets
// parse packet
request_.size = size;
amf3parser * cparser = new amf3parser(buffer_.data());
try
{
request_.object = cparser->ReadNextObject();
delete cparser;
}
catch (...)
{
std::cerr << "uncaught handle_request()::amf3parser exception\n";
}
request_.conn = this;
try {
request_handler_.handle_request(request_, reply_);
}
catch (std::exception& e)
{
std::cerr << "handle_request() exception: " << e.what() << "\n";
}
// if (reply_.objects.size() > 0)
// {
// // send reply packets
// try {
// socket_.write_some(reply_.to_buffers());
// }
// catch (std::exception& e)
// {
// std::cerr << "asio::write_some() exception: " << e.what() << "\n";
// }
// reply_.objects.clear();
// }
boost::asio::async_read(socket_, boost::asio::buffer(buffer_, 4), boost::bind(&connection::handle_read_header, shared_from_this(),
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
}
else if (e != boost::asio::error::operation_aborted)
{
server.stop(shared_from_this());
return;
}
}
