* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-/*
- * Date: 27.10.2002
- */
-
/*
* Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
+ * Author : Maxim Mamontov <faust@stargazer.dp.ua>
*/
- /*
- $Revision: 1.22 $
- $Date: 2010/10/04 20:24:14 $
- $Author: faust $
- */
+#include "conn.h"
+
+#include "stg/common.h"
+#include "stg/logger.h"
-#include <unistd.h>
+#include <algorithm>
+#include <functional>
+#include <csignal>
+#include <cstring>
+#include <cerrno>
+#include <cassert>
-#include "configproto.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
-//-----------------------------------------------------------------------------
-void ParseXMLStart(void *data, const char *el, const char **attr)
+namespace
{
-CONFIGPROTO * cp = static_cast<CONFIGPROTO *>(data);
-if (cp->currParser)
+struct IsFinished : public std::unary_function<STG::Conn *, bool>
+{
+ result_type operator()(const argument_type & arg)
{
- cp->currParser->SetAnswerList(&cp->answerList);
- cp->currParser->SetCurrAdmin(*cp->currAdmin);
- cp->currParser->ParseStart(data, el, attr);
+ return (arg->IsDone() && !arg->IsKeepAlive()) || !arg->IsOk();
}
-else
+};
+
+struct RemoveConn : public std::unary_function<STG::Conn *, void>
+{
+ result_type operator()(const argument_type & arg)
{
- for (unsigned int i = 0; i < cp->dataParser.size(); i++)
- {
- cp->dataParser[i]->SetAnswerList(&cp->answerList);
- cp->dataParser[i]->SetCurrAdmin(*cp->currAdmin);
- cp->dataParser[i]->Reset();
- if (cp->dataParser[i]->ParseStart(data, el, attr) == 0)
- {
- cp->currParser = cp->dataParser[i];
- break;
- }
- else
- {
- cp->dataParser[i]->Reset();
- }
- }
+ delete arg;
}
+};
+
}
-//-----------------------------------------------------------------------------
-void ParseXMLEnd(void *data, const char *el)
+
+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)
{
-CONFIGPROTO * cp = static_cast<CONFIGPROTO *>(data);
-if (cp->currParser)
- {
- if (cp->currParser->ParseEnd(data, el) == 0)
- {
- cp->currParser = NULL;
- }
- }
-else
- {
- for (unsigned int i = 0; i < cp->dataParser.size(); i++)
- {
- if (cp->dataParser[i]->ParseEnd(data, el) == 0)
- {
- break;
- }
- }
- }
+ std::for_each(m_conns.begin(), m_conns.end(), RemoveConn());
}
-//-----------------------------------------------------------------------------
-CONFIGPROTO::CONFIGPROTO()
- : adminIP(0),
- port(0),
- nonstop(1),
- state(0),
- currAdmin(),
- WriteServLog(GetStgLogger()),
- listenSocket(0),
- admins(NULL),
- currParser(NULL)
+
+int CONFIGPROTO::Prepare()
{
-dataParser.push_back(&parserGetServInfo);
+ sigset_t sigmask, oldmask;
+ sigemptyset(&sigmask);
+ sigaddset(&sigmask, SIGINT);
+ sigaddset(&sigmask, SIGTERM);
+ sigaddset(&sigmask, SIGUSR1);
+ sigaddset(&sigmask, SIGHUP);
+ pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
-dataParser.push_back(&parserGetUsers);
-dataParser.push_back(&parserGetUser);
-dataParser.push_back(&parserChgUser);
-dataParser.push_back(&parserAddUser);
-dataParser.push_back(&parserDelUser);
-dataParser.push_back(&parserCheckUser);
-dataParser.push_back(&parserSendMessage);
+ m_listenSocket = socket(PF_INET, SOCK_STREAM, 0);
-dataParser.push_back(&parserGetTariffs);
-dataParser.push_back(&parserAddTariff);
-dataParser.push_back(&parserDelTariff);
-dataParser.push_back(&parserChgTariff);
+ if (m_listenSocket < 0)
+ {
+ m_errorStr = std::string("Cannot create listen socket: '") + strerror(errno) + "'.";
+ m_logger(m_errorStr);
+ return -1;
+ }
-dataParser.push_back(&parserGetAdmins);
-dataParser.push_back(&parserChgAdmin);
-dataParser.push_back(&parserDelAdmin);
-dataParser.push_back(&parserAddAdmin);
+ 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
-xmlParser = XML_ParserCreate(NULL);
+ int dummy = 1;
-if (!xmlParser)
+ if (setsockopt(m_listenSocket, SOL_SOCKET, SO_REUSEADDR, &dummy, 4) != 0)
{
- WriteServLog("Couldn't allocate memory for parser.");
- exit(1);
+ m_errorStr = std::string("Failed to set SO_REUSEADDR to the listen socket: '") + strerror(errno) + "'.";
+ m_logger(m_errorStr);
+ return -1;
}
-}
-//-----------------------------------------------------------------------------
-CONFIGPROTO::~CONFIGPROTO()
-{
-XML_ParserFree(xmlParser);
-}
-//-----------------------------------------------------------------------------
-int CONFIGPROTO::ParseCommand()
-{
-list<string>::iterator n;
-int done = 0;
-char str[9];
-int len;
+ 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;
+ }
-if (requestList.empty())
+ m_running = true;
+ m_stopped = false;
return 0;
+}
-n = requestList.begin();
+int CONFIGPROTO::Stop()
+{
+ m_running = false;
+ for (int i = 0; i < 5 && !m_stopped; ++i)
+ {
+ struct timespec ts = {0, 200000000};
+ nanosleep(&ts, NULL);
+ }
-strncpy(str, (*n).c_str(), 8);
-str[8] = 0;
+ if (!m_stopped)
+ {
+ m_errorStr = "Cannot stop listenign thread.";
+ m_logger(m_errorStr);
+ return -1;
+ }
-XML_ParserReset(xmlParser, NULL);
-XML_SetElementHandler(xmlParser, ParseXMLStart, ParseXMLEnd);
-XML_SetUserData(xmlParser, this);
+ shutdown(m_listenSocket, SHUT_RDWR);
+ close(m_listenSocket);
+ return 0;
+}
-while(nonstop)
+void CONFIGPROTO::Run()
+{
+ while (m_running)
{
- strncpy(str, (*n).c_str(), 8);
- str[8] = 0;
- len = strlen(str);
+ fd_set fds;
- n++;
- if (n == requestList.end())
- done = 1;
- n--;
+ BuildFDSet(fds);
- if (XML_Parse(xmlParser, (*n).c_str(), len, done) == XML_STATUS_ERROR)
- {
- WriteServLog("Invalid configuration request");
- printfd(__FILE__, "Parse error at line %d:\n%s\n",
- XML_GetCurrentLineNumber(xmlParser),
- XML_ErrorString(XML_GetErrorCode(xmlParser)));
- if (currParser)
- {
- printfd(__FILE__, "Parser reset\n");
- currParser->Reset();
- currParser = NULL;
- }
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = 500000;
- return -1;
+ 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);
- if (done)
- return 0;
-
- n++;
+ CleanupConns();
}
-
-return 0;
+ m_stopped = true;
}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetPort(uint16_t p)
+
+int CONFIGPROTO::MaxFD() const
{
-port = p;
+ 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::SetAdmins(ADMINS * a)
-{
-admins = a;
-for (unsigned int i = 0; i < dataParser.size(); i++)
- {
- dataParser[i]->SetAdmins(a);
- }
-}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetUsers(USERS * u)
+void CONFIGPROTO::BuildFDSet(fd_set & fds) const
{
-for (unsigned int i = 0; i < dataParser.size(); i++)
- {
- dataParser[i]->SetUsers(u);
- }
-
+ for (size_t i = 0; i < m_conns.size(); ++i)
+ FD_SET(m_conns[i]->Sock(), &fds);
}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetTariffs(TARIFFS * t)
+
+void CONFIGPROTO::CleanupConns()
{
-for (unsigned int i = 0; i < dataParser.size(); i++)
- {
- dataParser[i]->SetTariffs(t);
- }
+ 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::SetStore(STORE * s)
+
+void CONFIGPROTO::HandleEvents(const fd_set & fds)
{
-for (unsigned int i = 0; i < dataParser.size(); i++)
+ if (FD_ISSET(m_listenSocket, &fds))
+ AcceptConnection();
+ else
{
- dataParser[i]->SetStore(s);
+ for (size_t i = 0; i < m_conns.size(); ++i)
+ if (FD_ISSET(m_conns[i]->Sock(), &fds))
+ m_conns[i]->Read();
}
}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetStgSettings(const SETTINGS * s)
+
+void CONFIGPROTO::AcceptConnection()
{
-for (unsigned int i = 0; i < dataParser.size(); i++)
+ struct sockaddr_in outerAddr;
+ socklen_t outerAddrLen(sizeof(outerAddr));
+ int sock = accept(m_listenSocket, reinterpret_cast<sockaddr *>(&outerAddr), &outerAddrLen);
+
+ if (sock < 0)
{
- dataParser[i]->SetStgSettings(s);
+ 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());
}
-//-----------------------------------------------------------------------------
-const string & CONFIGPROTO::GetStrError() const
-{
-return errorStr;
-}
-//-----------------------------------------------------------------------------
-uint32_t CONFIGPROTO::GetAdminIP() const
+/*
+void CONFIGPROTO::WriteLogAccessFailed(uint32_t ip)
{
-return adminIP;
+ m_logger("Admin's connection failed. IP %s", inet_ntostring(ip).c_str());
}
-//-----------------------------------------------------------------------------
+*/
git.stg.codes / stg.git / blobdiff