* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-/*
- * Date: 27.10.2002
- */
-
/*
* Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
- */
-
- /*
- $Revision: 1.22 $
- $Date: 2010/10/04 20:24:14 $
- $Author: faust $
+ * Author : Maxim Mamontov <faust@stargazer.dp.ua>
*/
#include "configproto.h"
-#include "parser.h"
-#include "parser_auth_by.h"
+#include "conn.h"
+
+#include "parser_server_info.h"
+#include "parser_admins.h"
+#include "parser_tariffs.h"
+#include "parser_users.h"
+#include "parser_message.h"
#include "parser_user_info.h"
+#include "parser_auth_by.h"
-#include "stg/users.h"
-#include "stg/admins.h"
-#include "stg/tariffs.h"
-#include "stg/logger.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>
-#include <unistd.h>
+namespace SP = STG::PARSER;
-//-----------------------------------------------------------------------------
-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->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 (size_t i = 0; i < cp->dataParser.size(); i++)
- {
- 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;
}
+};
+
+}
+
+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::~CONFIGPROTO()
+{
+ std::for_each(m_conns.begin(), m_conns.end(), RemoveConn());
}
-//-----------------------------------------------------------------------------
-void ParseXMLEnd(void *data, const char *el)
+
+int CONFIGPROTO::Prepare()
{
-CONFIGPROTO * cp = static_cast<CONFIGPROTO *>(data);
-if (cp->currParser)
+ 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)
{
- if (cp->currParser->ParseEnd(data, el) == 0)
- {
- cp->currParser = NULL;
- }
+ 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;
}
-else
+
+ if (bind(m_listenSocket, reinterpret_cast<sockaddr *>(&listenAddr), sizeof(listenAddr)) == -1)
{
- for (size_t i = 0; i < cp->dataParser.size(); i++)
- {
- if (cp->dataParser[i]->ParseEnd(data, el) == 0)
- {
- break;
- }
- }
+ m_errorStr = std::string("Cannot bind listen socket: '") + strerror(errno) + "'.";
+ m_logger(m_errorStr);
+ return -1;
}
-}
-//-----------------------------------------------------------------------------
-CONFIGPROTO::CONFIGPROTO(PLUGIN_LOGGER & l)
- : adminIP(0),
- port(0),
- nonstop(true),
- state(0),
- currAdmin(NULL),
- logger(l),
- listenSocket(-1),
- admins(NULL),
- currParser(NULL)
-{
-dataParser.push_back(new PARSER_GET_SERVER_INFO);
-
-dataParser.push_back(new PARSER_GET_USERS);
-dataParser.push_back(new PARSER_GET_USER);
-dataParser.push_back(new PARSER_CHG_USER);
-dataParser.push_back(new PARSER_ADD_USER);
-dataParser.push_back(new PARSER_DEL_USER);
-dataParser.push_back(new PARSER_CHECK_USER);
-dataParser.push_back(new PARSER_SEND_MESSAGE);
-dataParser.push_back(new PARSER_AUTH_BY);
-dataParser.push_back(new PARSER_USER_INFO);
-
-dataParser.push_back(new PARSER_GET_TARIFFS);
-dataParser.push_back(new PARSER_ADD_TARIFF);
-dataParser.push_back(new PARSER_DEL_TARIFF);
-dataParser.push_back(new PARSER_CHG_TARIFF);
-
-dataParser.push_back(new PARSER_GET_ADMINS);
-dataParser.push_back(new PARSER_CHG_ADMIN);
-dataParser.push_back(new PARSER_DEL_ADMIN);
-dataParser.push_back(new PARSER_ADD_ADMIN);
-
-xmlParser = XML_ParserCreate(NULL);
-
-if (!xmlParser)
+
+ if (listen(m_listenSocket, 64) == -1) // TODO: backlog length
{
- logger("Couldn't allocate memory for parser.");
- exit(1);
+ m_errorStr = std::string("Failed to start listening for connections: '") + strerror(errno) + "'.";
+ m_logger(m_errorStr);
+ return -1;
}
+ RegisterParsers();
+
+ m_running = true;
+ m_stopped = false;
+ return 0;
}
-//-----------------------------------------------------------------------------
-CONFIGPROTO::~CONFIGPROTO()
+
+int CONFIGPROTO::Stop()
{
-for (size_t i = 0; i < dataParser.size(); ++i)
- delete dataParser[i];
-XML_ParserFree(xmlParser);
+ 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;
}
-//-----------------------------------------------------------------------------
-int CONFIGPROTO::ParseCommand()
+
+void CONFIGPROTO::Run()
{
-std::list<std::string>::iterator n;
-int done = 0;
-char str[9];
+ while (m_running)
+ {
+ fd_set fds;
-if (requestList.empty())
- return 0;
+ BuildFDSet(fds);
-n = requestList.begin();
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = 500000;
-strncpy(str, (*n).c_str(), 8);
-str[8] = 0;
+ 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);
-XML_ParserReset(xmlParser, NULL);
-XML_SetElementHandler(xmlParser, ParseXMLStart, ParseXMLEnd);
-XML_SetUserData(xmlParser, this);
+ CleanupConns();
+ }
+ m_stopped = true;
+}
-while(nonstop)
- {
- strncpy(str, (*n).c_str(), 8);
- str[8] = 0;
- size_t len = strlen(str);
+void CONFIGPROTO::RegisterParsers()
+{
+ assert(m_settings != NULL);
+ assert(m_store != NULL);
+ assert(m_admins != NULL);
+ assert(m_users != NULL);
+ assert(m_tariffs != NULL);
- ++n;
- if (n == requestList.end())
- done = 1;
- --n;
+ SP::GET_SERVER_INFO::FACTORY::Register(m_registry, *m_settings, *m_users, *m_tariffs);
- if (XML_Parse(xmlParser, (*n).c_str(), static_cast<int>(len), done) == XML_STATUS_ERROR)
- {
- logger("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;
- }
+ SP::GET_ADMINS::FACTORY::Register(m_registry, *m_admins);
+ SP::ADD_ADMIN::FACTORY::Register(m_registry, *m_admins);
+ SP::DEL_ADMIN::FACTORY::Register(m_registry, *m_admins);
+ SP::CHG_ADMIN::FACTORY::Register(m_registry, *m_admins);
- return -1;
- }
+ SP::GET_TARIFFS::FACTORY::Register(m_registry, *m_tariffs);
+ SP::ADD_TARIFF::FACTORY::Register(m_registry, *m_tariffs);
+ SP::DEL_TARIFF::FACTORY::Register(m_registry, *m_tariffs, *m_users);
+ SP::CHG_TARIFF::FACTORY::Register(m_registry, *m_tariffs);
- if (done)
- return 0;
+ SP::GET_USERS::FACTORY::Register(m_registry, *m_users);
+ SP::GET_USER::FACTORY::Register(m_registry, *m_users);
+ SP::ADD_USER::FACTORY::Register(m_registry, *m_users);
+ SP::DEL_USER::FACTORY::Register(m_registry, *m_users);
+ SP::CHG_USER::FACTORY::Register(m_registry, *m_users, *m_store, *m_tariffs);
+ SP::CHECK_USER::FACTORY::Register(m_registry, *m_users);
- ++n;
- }
+ SP::SEND_MESSAGE::FACTORY::Register(m_registry, *m_users);
+
+ SP::AUTH_BY::FACTORY::Register(m_registry, *m_users);
+
+ SP::USER_INFO::FACTORY::Register(m_registry, *m_users);
+}
-return 0;
+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::SetAdmins(ADMINS * a)
+
+void CONFIGPROTO::BuildFDSet(fd_set & fds) const
{
-admins = a;
-for (size_t i = 0; i < dataParser.size(); i++)
- dataParser[i]->SetAdmins(a);
+ for (size_t i = 0; i < m_conns.size(); ++i)
+ FD_SET(m_conns[i]->Sock(), &fds);
}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetUsers(USERS * u)
+
+void CONFIGPROTO::CleanupConns()
{
-for (size_t i = 0; i < dataParser.size(); i++)
- dataParser[i]->SetUsers(u);
+ 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::SetTariffs(TARIFFS * t)
+
+void CONFIGPROTO::HandleEvents(const fd_set & fds)
{
-for (size_t i = 0; i < dataParser.size(); i++)
- dataParser[i]->SetTariffs(t);
+ 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::SetStore(STORE * s)
+
+void CONFIGPROTO::AcceptConnection()
{
-for (size_t i = 0; i < dataParser.size(); i++)
- dataParser[i]->SetStore(s);
+ 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_admins != NULL);
+
+ try
+ {
+ m_conns.push_back(new STG::Conn(m_registry, *m_admins, sock, outerAddr));
+ printfd(__FILE__, "New connection from %s:%d\n", inet_ntostring(m_conns.back()->IP()).c_str(), m_conns.back()->Port());
+ }
+ catch (const STG::Conn::Error & error)
+ {
+ // Unlikely.
+ m_logger(std::string("Failed to create new client connection: '") + error.what() + "'.");
+ }
}
-//-----------------------------------------------------------------------------
-void CONFIGPROTO::SetStgSettings(const SETTINGS * s)
+/*
+void CONFIGPROTO::WriteLogAccessFailed(uint32_t ip)
{
-for (size_t i = 0; i < dataParser.size(); i++)
- dataParser[i]->SetStgSettings(s);
+ m_logger("Admin's connection failed. IP %s", inet_ntostring(ip).c_str());
}
-//-----------------------------------------------------------------------------
+*/
git.stg.codes / stg.git / blobdiff