Use "connected" subscription for detecting connection and disconnection.

[stg.git] / projects / stargazer / plugins / other / rscript / rscript.cpp

diff --git a/projects/stargazer/plugins/other/rscript/rscript.cpp b/projects/stargazer/plugins/other/rscript/rscript.cpp
index c9fcc549b84f31a83f688f63ce6ec4f84fd1f7e6..ebe2556df282c2f007ad6b54fe9f6500cb3fd393 100644 (file)
--- a/projects/stargazer/plugins/other/rscript/rscript.cpp
+++ b/projects/stargazer/plugins/other/rscript/rscript.cpp
@@ -19,23 +19,21 @@
  *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
  */
 
-/*
- $Revision: 1.33 $
- $Date: 2010/04/16 12:30:37 $
- $Author: faust $
-*/
-
 #include <sys/time.h>
 
 #include <csignal>
 #include <cassert>
 #include <cstdlib>
+#include <cerrno>
+#include <cstring>
 #include <algorithm>
 
 #include "stg/common.h"
 #include "stg/locker.h"
+#include "stg/users.h"
 #include "stg/user_property.h"
 #include "stg/plugin_creator.h"
+#include "stg/logger.h"
 #include "rscript.h"
 #include "ur_functor.h"
 #include "send_functor.h"
@@ -44,6 +42,8 @@ extern volatile const time_t stgTime;
 
 #define RS_MAX_ROUTERS  (100)
 
+using RS::REMOTE_SCRIPT;
+
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
@@ -58,16 +58,35 @@ return rsc.GetPlugin();
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
-RS_USER & RS_USER::operator=(const RS_USER & rvalue)
+RS::USER::USER(const std::vector<uint32_t> & r, USER_PTR it, REMOTE_SCRIPT & rs)
+    : lastSentTime(0),
+      user(it),
+      routers(r),
+      shortPacketsCount(0),
+      ip(user->GetCurrIP()),
+      notifier(rs, *this)
+{
+    user->AddConnectedAfterNotifier(&notifier);
+}
+//-----------------------------------------------------------------------------
+RS::USER::USER(const RS::USER & rhs)
+    : lastSentTime(rhs.lastSentTime),
+      user(rhs.user),
+      routers(rhs.routers),
+      shortPacketsCount(rhs.shortPacketsCount),
+      ip(rhs.ip),
+      notifier(rhs.notifier)
+{
+    user->DelConnectedAfterNotifier(&rhs.notifier);
+    user->AddConnectedAfterNotifier(&notifier);
+}
+//-----------------------------------------------------------------------------
+RS::USER::~USER()
 {
-lastSentTime = rvalue.lastSentTime;
-user = rvalue.user;
-routers = rvalue.routers;
-shortPacketsCount = rvalue.shortPacketsCount;
-return *this;
+    user->DelConnectedAfterNotifier(&notifier);
 }
 //-----------------------------------------------------------------------------
-RS_SETTINGS::RS_SETTINGS()
+RS::SETTINGS::SETTINGS()
     : sendPeriod(0),
       port(0),
       errorStr(),
@@ -78,7 +97,7 @@ RS_SETTINGS::RS_SETTINGS()
 {
 }
 //-----------------------------------------------------------------------------
-int RS_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
+int RS::SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
 {
 int p;
 PARAM_VALUE pv;
@@ -149,19 +168,13 @@ subnetFile = pvi->value[0];
 
 NRMapParser nrMapParser;
 
-if (nrMapParser.ReadFile(subnetFile))
+if (!nrMapParser.ReadFile(subnetFile))
     {
-    errorStr = nrMapParser.GetErrorStr();
-    return -1;
+    netRouters = nrMapParser.GetMap();
     }
-
-netRouters = nrMapParser.GetMap();
-
-if (netRouters.empty())
+else
     {
-    errorStr = "Parameter(s) \'Subnet*\' not found.";
-    printfd(__FILE__, "Parameter(s) 'Subnet*' not found\n");
-    return -1;
+    GetStgLogger()("mod_rscript: error opening subnets file '%s'", subnetFile.c_str());
     }
 
 return 0;
@@ -171,7 +184,7 @@ return 0;
 //-----------------------------------------------------------------------------
 REMOTE_SCRIPT::REMOTE_SCRIPT()
     : ctx(),
-      afterChgIPNotifierList(),
+      ipNotifierList(),
       authorizedUsers(),
       errorStr(),
       rsSettings(),
@@ -186,7 +199,8 @@ REMOTE_SCRIPT::REMOTE_SCRIPT()
       mutex(),
       sock(0),
       onAddUserNotifier(*this),
-      onDelUserNotifier(*this)
+      onDelUserNotifier(*this),
+      logger(GetPluginLogger(GetStgLogger(), "rscript"))
 {
 pthread_mutex_init(&mutex, NULL);
 }
@@ -234,9 +248,6 @@ netRouters = rsSettings.GetSubnetsMap();
 
 InitEncrypt(&ctx, rsSettings.GetPassword());
 
-//onAddUserNotifier.SetRemoteScript(this);
-//onDelUserNotifier.SetRemoteScript(this);
-
 users->AddNotifierUserAdd(&onAddUserNotifier);
 users->AddNotifierUserDel(&onDelUserNotifier);
 
@@ -257,6 +268,7 @@ if (!isRunning)
     if (pthread_create(&thread, NULL, Run, this))
         {
         errorStr = "Cannot create thread.";
+       logger("Cannot create thread.");
         printfd(__FILE__, "Cannot create thread\n");
         return -1;
         }
@@ -295,7 +307,10 @@ users->DelNotifierUserDel(&onDelUserNotifier);
 users->DelNotifierUserAdd(&onAddUserNotifier);
 
 if (isRunning)
+    {
+    logger("Cannot stop thread.");
     return -1;
+    }
 
 return 0;
 }
@@ -307,6 +322,7 @@ NRMapParser nrMapParser;
 if (nrMapParser.ReadFile(rsSettings.GetMapFileName()))
     {
     errorStr = nrMapParser.GetErrorStr();
+    logger("Map file reading error: %s", errorStr.c_str());
     return -1;
     }
 
@@ -332,6 +348,7 @@ sock = socket(AF_INET, SOCK_DGRAM, 0);
 if (sock < 0)
     {
     errorStr = "Cannot create socket.";
+    logger("Canot create a socket: %s", strerror(errno));
     printfd(__FILE__, "Cannot create socket\n");
     return true;
     }
@@ -349,11 +366,10 @@ void REMOTE_SCRIPT::PeriodicSend()
 {
 STG_LOCKER lock(&mutex, __FILE__, __LINE__);
 
-map<uint32_t, RS_USER>::iterator it(authorizedUsers.begin());
+map<uint32_t, RS::USER>::iterator it(authorizedUsers.begin());
 while (it != authorizedUsers.end())
     {
     if (difftime(stgTime, it->second.lastSentTime) - (rand() % halfPeriod) > sendPeriod)
-    //if (stgTime - it->second.lastSentTime > sendPeriod)
         {
         Send(it->first, it->second);
         }
@@ -362,12 +378,12 @@ while (it != authorizedUsers.end())
 }
 //-----------------------------------------------------------------------------
 #ifdef NDEBUG
-bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t, uint32_t ip, RS_USER & rsu, bool forceDisconnect) const
+bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t, uint32_t ip, RS::USER & rsu, bool forceDisconnect) const
 #else
-bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t bufSize, uint32_t ip, RS_USER & rsu, bool forceDisconnect) const
+bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t bufSize, uint32_t ip, RS::USER & rsu, bool forceDisconnect) const
 #endif
 {
-RS_PACKET_HEADER packetHead;
+RS::PACKET_HEADER packetHead;
 
 memset(packetHead.padding, 0, sizeof(packetHead.padding));
 strcpy((char*)packetHead.magic, RS_ID);
@@ -405,7 +421,7 @@ if (packetHead.packetType == RS_ALIVE_PACKET)
     return false;
     }
 
-RS_PACKET_TAIL packetTail;
+RS::PACKET_TAIL packetTail;
 
 memset(packetTail.padding, 0, sizeof(packetTail.padding));
 strcpy((char*)packetTail.magic, RS_ID);
@@ -430,7 +446,7 @@ Encrypt(&ctx, buf + sizeof(packetHead), (char *)&packetTail, sizeof(packetTail)
 return false;
 }
 //-----------------------------------------------------------------------------
-bool REMOTE_SCRIPT::Send(uint32_t ip, RS_USER & rsu, bool forceDisconnect) const
+bool REMOTE_SCRIPT::Send(uint32_t ip, RS::USER & rsu, bool forceDisconnect) const
 {
 char buffer[RS_MAX_PACKET_LEN];
 
@@ -451,7 +467,7 @@ std::for_each(
 return false;
 }
 //-----------------------------------------------------------------------------
-bool REMOTE_SCRIPT::SendDirect(uint32_t ip, RS_USER & rsu, uint32_t routerIP, bool forceDisconnect) const
+bool REMOTE_SCRIPT::SendDirect(uint32_t ip, RS::USER & rsu, uint32_t routerIP, bool forceDisconnect) const
 {
 char buffer[RS_MAX_PACKET_LEN];
 
@@ -469,6 +485,9 @@ sendAddr.sin_addr.s_addr = routerIP;
 
 int res = sendto(sock, buffer, sizeof(buffer), 0, (struct sockaddr *)&sendAddr, sizeof(sendAddr));
 
+if (res < 0)
+    logger("sendto error: %s", strerror(errno));
+
 return (res != sizeof(buffer));
 }
 //-----------------------------------------------------------------------------
@@ -477,12 +496,7 @@ bool REMOTE_SCRIPT::GetUsers()
 USER_PTR u;
 
 int h = users->OpenSearch();
-if (!h)
-    {
-    errorStr = "users->OpenSearch() error.";
-    printfd(__FILE__, "OpenSearch() error\n");
-    return true;
-    }
+assert(h && "USERS::OpenSearch is always correct");
 
 while (!users->SearchNext(h, &u))
     {
@@ -502,16 +516,16 @@ void REMOTE_SCRIPT::ChangedIP(USER_PTR u, uint32_t oldIP, uint32_t newIP)
  */
 if (newIP)
     {
-    RS_USER rsu(IP2Routers(newIP), u);
+    RS::USER rsu(IP2Routers(newIP), u, *this);
     Send(newIP, rsu);
 
     STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-    authorizedUsers[newIP] = rsu;
+    authorizedUsers.insert(std::make_pair(newIP, rsu));
     }
 else
     {
     STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-    const map<uint32_t, RS_USER>::iterator it(
+    const map<uint32_t, RS::USER>::iterator it(
             authorizedUsers.find(oldIP)
             );
     if (it != authorizedUsers.end())
@@ -617,19 +631,17 @@ return value;
 //-----------------------------------------------------------------------------
 void REMOTE_SCRIPT::SetUserNotifier(USER_PTR u)
 {
-RS_CHG_AFTER_NOTIFIER<uint32_t> afterChgIPNotifier(*this, u);
-
-afterChgIPNotifierList.push_front(afterChgIPNotifier);
+ipNotifierList.push_front(RS::IP_NOTIFIER(*this, u));
 
-u->AddCurrIPAfterNotifier(&(*afterChgIPNotifierList.begin()));
+u->AddCurrIPAfterNotifier(&(*ipNotifierList.begin()));
 }
 //-----------------------------------------------------------------------------
 void REMOTE_SCRIPT::UnSetUserNotifier(USER_PTR u)
 {
-list<RS_CHG_AFTER_NOTIFIER<uint32_t> >::iterator  ipAIter;
-std::list<list<RS_CHG_AFTER_NOTIFIER<uint32_t> >::iterator> toErase;
+list<RS::IP_NOTIFIER>::iterator  ipAIter;
+std::list<list<RS::IP_NOTIFIER>::iterator> toErase;
 
-for (ipAIter = afterChgIPNotifierList.begin(); ipAIter != afterChgIPNotifierList.end(); ++ipAIter)
+for (ipAIter = ipNotifierList.begin(); ipAIter != ipNotifierList.end(); ++ipAIter)
     {
     if (ipAIter->GetUser() == u)
         {
@@ -638,20 +650,25 @@ for (ipAIter = afterChgIPNotifierList.begin(); ipAIter != afterChgIPNotifierList
         }
     }
 
-std::list<list<RS_CHG_AFTER_NOTIFIER<uint32_t> >::iterator>::iterator eIter;
+std::list<list<RS::IP_NOTIFIER>::iterator>::iterator eIter;
 
 for (eIter = toErase.begin(); eIter != toErase.end(); ++eIter)
     {
-    afterChgIPNotifierList.erase(*eIter);
+    ipNotifierList.erase(*eIter);
     }
 }
 //-----------------------------------------------------------------------------
-template <typename varParamType>
-void RS_CHG_AFTER_NOTIFIER<varParamType>::Notify(const varParamType & oldValue, const varParamType & newValue)
+void RS::IP_NOTIFIER::Notify(const uint32_t & oldValue, const uint32_t & newValue)
 {
 rs.ChangedIP(user, oldValue, newValue);
 }
 //-----------------------------------------------------------------------------
+void RS::CONNECTED_NOTIFIER::Notify(const bool & /*oldValue*/, const bool & newValue)
+{
+if (!newValue)
+    rs.Send(user.ip, user, true);
+}
+//-----------------------------------------------------------------------------
 void REMOTE_SCRIPT::InitEncrypt(BLOWFISH_CTX * ctx, const string & password) const
 {
 unsigned char keyL[PASSWD_LEN];  // Пароль для шифровки