+++ /dev/null
-/*
- * This program 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.
- *
- * This program 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 more 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
- * Author : Maxim Mamontov <faust@stargazer.dp.ua>
- */
-
-#include "configproto.h"
-
-#include "conn.h"
-
-#include "stg/common.h"
-#include "stg/logger.h"
-
-#include <algorithm>
-#include <functional>
-#include <csignal>
-#include <cstring>
-#include <cerrno>
-#include <cassert>
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-namespace
-{
-
-struct IsFinished : public std::unary_function<STG::Conn *, bool>
-{
- result_type operator()(const argument_type & arg)
- {
- return (arg->IsDone() && !arg->IsKeepAlive()) || !arg->IsOk();
- }
-};
-
-struct RemoveConn : public std::unary_function<STG::Conn *, void>
-{
- result_type operator()(const argument_type & arg)
- {
- delete arg;
- }
-};
-
-}
-
-CONFIGPROTO::CONFIGPROTO(PLUGIN_LOGGER & l)
- : m_settings(NULL),
- m_admins(NULL),
- m_tariffs(NULL),
- m_users(NULL),
- m_port(0),
- m_running(false),
- m_stopped(true),
- m_logger(l),
- m_listenSocket(-1)
-{
- std::for_each(m_conns.begin(), m_conns.end(), RemoveConn());
-}
-
-int CONFIGPROTO::Prepare()
-{
- sigset_t sigmask, oldmask;
- sigemptyset(&sigmask);
- sigaddset(&sigmask, SIGINT);
- sigaddset(&sigmask, SIGTERM);
- sigaddset(&sigmask, SIGUSR1);
- sigaddset(&sigmask, SIGHUP);
- pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
-
- m_listenSocket = socket(PF_INET, SOCK_STREAM, 0);
-
- if (m_listenSocket < 0)
- {
- m_errorStr = std::string("Cannot create listen socket: '") + strerror(errno) + "'.";
- m_logger(m_errorStr);
- return -1;
- }
-
- struct sockaddr_in listenAddr;
- listenAddr.sin_family = PF_INET;
- listenAddr.sin_port = htons(m_port);
- listenAddr.sin_addr.s_addr = inet_addr("0.0.0.0"); // TODO: arbitrary address
-
- int dummy = 1;
-
- if (setsockopt(m_listenSocket, SOL_SOCKET, SO_REUSEADDR, &dummy, 4) != 0)
- {
- m_errorStr = std::string("Failed to set SO_REUSEADDR to the listen socket: '") + strerror(errno) + "'.";
- m_logger(m_errorStr);
- return -1;
- }
-
- if (bind(m_listenSocket, reinterpret_cast<sockaddr *>(&listenAddr), sizeof(listenAddr)) == -1)
- {
- m_errorStr = std::string("Cannot bind listen socket: '") + strerror(errno) + "'.";
- m_logger(m_errorStr);
- return -1;
- }
-
- if (listen(m_listenSocket, 64) == -1) // TODO: backlog length
- {
- m_errorStr = std::string("Failed to start listening for connections: '") + strerror(errno) + "'.";
- m_logger(m_errorStr);
- return -1;
- }
-
- m_running = true;
- m_stopped = false;
- return 0;
-}
-
-int CONFIGPROTO::Stop()
-{
- m_running = false;
- for (int i = 0; i < 5 && !m_stopped; ++i)
- {
- struct timespec ts = {0, 200000000};
- nanosleep(&ts, NULL);
- }
-
- if (!m_stopped)
- {
- m_errorStr = "Cannot stop listenign thread.";
- m_logger(m_errorStr);
- return -1;
- }
-
- shutdown(m_listenSocket, SHUT_RDWR);
- close(m_listenSocket);
- return 0;
-}
-
-void CONFIGPROTO::Run()
-{
- while (m_running)
- {
- fd_set fds;
-
- BuildFDSet(fds);
-
- struct timeval tv;
- tv.tv_sec = 0;
- tv.tv_usec = 500000;
-
- int res = select(MaxFD() + 1, &fds, NULL, NULL, &tv);
- if (res < 0)
- {
- m_errorStr = std::string("'select' is failed: '") + strerror(errno) + "'.";
- m_logger(m_errorStr);
- break;
- }
- if (!m_running)
- break;
- if (res > 0)
- HandleEvents(fds);
-
- CleanupConns();
- }
- m_stopped = true;
-}
-
-int CONFIGPROTO::MaxFD() const
-{
- int maxFD = m_listenSocket;
- for (size_t i = 0; i < m_conns.size(); ++i)
- if (maxFD < m_conns[i]->Sock())
- maxFD = m_conns[i]->Sock();
- return maxFD;
-}
-
-void CONFIGPROTO::BuildFDSet(fd_set & fds) const
-{
- for (size_t i = 0; i < m_conns.size(); ++i)
- FD_SET(m_conns[i]->Sock(), &fds);
-}
-
-void CONFIGPROTO::CleanupConns()
-{
- std::vector<STG::Conn *>::iterator pos;
- pos = std::remove_if(m_conns.begin(), m_conns.end(), IsFinished());
- if (pos == m_conns.end())
- return;
- std::for_each(pos, m_conns.end(), RemoveConn());
- m_conns.erase(pos, m_conns.end());
-}
-
-void CONFIGPROTO::HandleEvents(const fd_set & fds)
-{
- if (FD_ISSET(m_listenSocket, &fds))
- AcceptConnection();
- else
- {
- for (size_t i = 0; i < m_conns.size(); ++i)
- if (FD_ISSET(m_conns[i]->Sock(), &fds))
- m_conns[i]->Read();
- }
-}
-
-void CONFIGPROTO::AcceptConnection()
-{
- struct sockaddr_in outerAddr;
- socklen_t outerAddrLen(sizeof(outerAddr));
- int sock = accept(m_listenSocket, reinterpret_cast<sockaddr *>(&outerAddr), &outerAddrLen);
-
- if (sock < 0)
- {
- m_errorStr = std::string("Failed to accept connection: '") + strerror(errno) + "'.";
- printfd(__FILE__, "%s", m_errorStr.c_str());
- m_logger(m_errorStr);
- return;
- }
-
- assert(m_settings != NULL);
- assert(m_admins != NULL);
- assert(m_users != NULL);
- assert(m_tariffs != NULL);
-
- m_conns.push_back(new STG::Conn(*m_settings, *m_admins, *m_users, *m_tariffs, sock, outerAddr));
-
- printfd(__FILE__, "New connection from %s:%d\n", inet_ntostring(m_conns.back()->IP()).c_str(), m_conns.back()->Port());
-}
-/*
-void CONFIGPROTO::WriteLogAccessFailed(uint32_t ip)
-{
- m_logger("Admin's connection failed. IP %s", inet_ntostring(ip).c_str());
-}
-*/
git.stg.codes / stg.git / blobdiff