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[stg.git] / projects / rscriptd / listener.cpp

diff --git a/projects/rscriptd/listener.cpp b/projects/rscriptd/listener.cpp
index e6bd4d77788c0362f5db0fe8a8173721589f5ab1..b168e5e226fe8f1304d775660312351ed47a1222 100644 (file)
--- a/projects/rscriptd/listener.cpp
+++ b/projects/rscriptd/listener.cpp
@@ -19,41 +19,40 @@
  *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
  */
 
  *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
  */
 

-#include <arpa/inet.h>
-#include <sys/uio.h> // readv
-#include <sys/types.h> // for historical versions of BSD
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <unistd.h>
+#include "listener.h"
+
+#include "stg/scriptexecuter.h"
+#include "stg/locker.h"
+#include "stg/common.h"
+#include "stg/const.h"

 
 

+#include <sstream>
+#include <algorithm>
+#include <chrono>

 #include <csignal>
 #include <cerrno>
 #include <ctime>
 #include <cstring>
 #include <csignal>
 #include <cerrno>
 #include <ctime>
 #include <cstring>

-#include <sstream>
-#include <algorithm>

 
 

-#include "stg/script_executer.h"
-#include "stg/stg_locker.h"
-#include "stg/common.h"
-#include "listener.h"
+#include <arpa/inet.h>
+#include <sys/uio.h> // readv
+#include <sys/types.h> // for historical versions of BSD
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>

 
 void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password);
 
 void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password);

-void Decrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8);

 
 //-----------------------------------------------------------------------------
 LISTENER::LISTENER()
 
 //-----------------------------------------------------------------------------
 LISTENER::LISTENER()

-    : WriteServLog(GetStgLogger()),
+    : WriteServLog(STG::Logger::get()),

       port(0),
       port(0),

-      running(false),

       receiverStopped(true),
       processorStopped(true),
       userTimeout(0),
       receiverStopped(true),
       processorStopped(true),
       userTimeout(0),

-      listenSocket(0)
+      listenSocket(0),
+      version("rscriptd listener v.1.2")

 {
 {

-version = "rscriptd listener v.1.2";
-
-pthread_mutex_init(&mutex, NULL);

 }
 //-----------------------------------------------------------------------------
 void LISTENER::SetPassword(const std::string & p)
 }
 //-----------------------------------------------------------------------------
 void LISTENER::SetPassword(const std::string & p)


@@ -66,30 +65,17 @@ InitEncrypt(&ctxS, password);
 bool LISTENER::Start()
 {
 printfd(__FILE__, "LISTENER::Start()\n");
 bool LISTENER::Start()
 {
 printfd(__FILE__, "LISTENER::Start()\n");

-running = true;

 
 if (PrepareNet())
     {
     return true;
     }
 
 
 if (PrepareNet())
     {
     return true;
     }
 

-if (receiverStopped)
-    {
-    if (pthread_create(&receiverThread, NULL, Run, this))
-        {
-        errorStr = "Cannot create thread.";
-        return true;
-        }
-    }
+if (!m_receiverThread.joinable())
+    m_receiverThread = std::jthread([this](auto token){ Run(std::move(token)); });

 
 

-if (processorStopped)
-    {
-    if (pthread_create(&processorThread, NULL, RunProcessor, this))
-        {
-        errorStr = "Cannot create thread.";
-        return true;
-        }
-    }
+if (!m_processorThread.joinable())
+    m_processorThread = std::jthread([this](auto token){ RunProcessor(std::move(token)); });

 
 errorStr = "";
 
 
 errorStr = "";
 


@@ -98,29 +84,24 @@ return false;
 //-----------------------------------------------------------------------------
 bool LISTENER::Stop()
 {
 //-----------------------------------------------------------------------------
 bool LISTENER::Stop()
 {

-running = false;
+m_receiverThread.request_stop();
+m_processorThread.request_stop();

 
 printfd(__FILE__, "LISTENER::Stop()\n");
 
 
 printfd(__FILE__, "LISTENER::Stop()\n");
 

-usleep(500000);
+std::this_thread::sleep_for(std::chrono::milliseconds(500));

 
 if (!processorStopped)
     {
     //5 seconds to thread stops itself
     for (int i = 0; i < 25 && !processorStopped; i++)
 
 if (!processorStopped)
     {
     //5 seconds to thread stops itself
     for (int i = 0; i < 25 && !processorStopped; i++)

-        {
-        usleep(200000);
-        }
+        std::this_thread::sleep_for(std::chrono::milliseconds(200));

 
     //after 5 seconds waiting thread still running. now killing it
     if (!processorStopped)
         {
         //TODO pthread_cancel()
 
     //after 5 seconds waiting thread still running. now killing it
     if (!processorStopped)
         {
         //TODO pthread_cancel()

-        if (pthread_kill(processorThread, SIGINT))
-            {
-            errorStr = "Cannot kill thread.";
-            return true;
-            }
+        m_processorThread.detach();

         printfd(__FILE__, "LISTENER killed Timeouter\n");
         }
     }
         printfd(__FILE__, "LISTENER killed Timeouter\n");
         }
     }


@@ -129,78 +110,53 @@ if (!receiverStopped)
     {
     //5 seconds to thread stops itself
     for (int i = 0; i < 25 && !receiverStopped; i++)
     {
     //5 seconds to thread stops itself
     for (int i = 0; i < 25 && !receiverStopped; i++)

-        {
-        usleep(200000);
-        }
+        std::this_thread::sleep_for(std::chrono::milliseconds(200));

 
     //after 5 seconds waiting thread still running. now killing it
     if (!receiverStopped)
         {
         //TODO pthread_cancel()
 
     //after 5 seconds waiting thread still running. now killing it
     if (!receiverStopped)
         {
         //TODO pthread_cancel()

-        if (pthread_kill(receiverThread, SIGINT))
-            {
-            errorStr = "Cannot kill thread.";
-            return true;
-            }
+        m_receiverThread.detach();

         printfd(__FILE__, "LISTENER killed Run\n");
         }
     }
 
         printfd(__FILE__, "LISTENER killed Run\n");
         }
     }
 

-pthread_join(receiverThread, NULL);
-pthread_join(processorThread, NULL);
-
-pthread_mutex_destroy(&mutex);
+if (receiverStopped)
+    m_receiverThread.join();
+if (processorStopped)
+    m_processorThread.join();

 
 FinalizeNet();
 
 
 FinalizeNet();
 

-std::for_each(users.begin(), users.end(), DisconnectUser(*this));
+for (const auto& user : users)
+    Disconnect(user);

 
 printfd(__FILE__, "LISTENER::Stoped successfully.\n");
 
 return false;
 }
 //-----------------------------------------------------------------------------
 
 printfd(__FILE__, "LISTENER::Stoped successfully.\n");
 
 return false;
 }
 //-----------------------------------------------------------------------------

-void * LISTENER::Run(void * d)
-{
-LISTENER * listener = static_cast<LISTENER *>(d);
-
-listener->Runner();
-
-return NULL;
-}
-//-----------------------------------------------------------------------------
-void LISTENER::Runner()
+void LISTENER::Run(std::stop_token token)

 {
 receiverStopped = false;
 
 {
 receiverStopped = false;
 

-while (running)
-    {
-    RecvPacket();
-    }
+while (!token.stop_requested())
+    RecvPacket(token);

 
 receiverStopped = true;
 }
 //-----------------------------------------------------------------------------
 
 receiverStopped = true;
 }
 //-----------------------------------------------------------------------------

-void * LISTENER::RunProcessor(void * d)
-{
-LISTENER * listener = static_cast<LISTENER *>(d);
-
-listener->ProcessorRunner();
-
-return NULL;
-}
-//-----------------------------------------------------------------------------
-void LISTENER::ProcessorRunner()
+void LISTENER::RunProcessor(std::stop_token token)

 {
 processorStopped = false;
 
 {
 processorStopped = false;
 

-while (running)
-    {
-    usleep(500000);
+while (!token.stop_requested())
+{
+    std::this_thread::sleep_for(std::chrono::milliseconds(500));

     if (!pending.empty())
         ProcessPending();
     ProcessTimeouts();
     if (!pending.empty())
         ProcessPending();
     ProcessTimeouts();

-    }
+}

 
 processorStopped = true;
 }
 
 processorStopped = true;
 }


@@ -220,7 +176,7 @@ listenAddr.sin_family = AF_INET;
 listenAddr.sin_port = htons(port);
 listenAddr.sin_addr.s_addr = inet_addr("0.0.0.0");
 
 listenAddr.sin_port = htons(port);
 listenAddr.sin_addr.s_addr = inet_addr("0.0.0.0");
 

-if (bind(listenSocket, (struct sockaddr*)&listenAddr, sizeof(listenAddr)) < 0)
+if (bind(listenSocket, reinterpret_cast<sockaddr*>(&listenAddr), sizeof(listenAddr)) < 0)

     {
     errorStr = "LISTENER: Bind failed.";
     return true;
     {
     errorStr = "LISTENER: Bind failed.";
     return true;


@@ -238,12 +194,12 @@ close(listenSocket);
 return false;
 }
 //-----------------------------------------------------------------------------
 return false;
 }
 //-----------------------------------------------------------------------------

-bool LISTENER::RecvPacket()
+bool LISTENER::RecvPacket(const std::stop_token& token)

 {
 struct iovec iov[2];
 
 char buffer[RS_MAX_PACKET_LEN];
 {
 struct iovec iov[2];
 
 char buffer[RS_MAX_PACKET_LEN];

-RS_PACKET_HEADER packetHead;
+RS::PACKET_HEADER packetHead;

 
 iov[0].iov_base = reinterpret_cast<char *>(&packetHead);
 iov[0].iov_len = sizeof(packetHead);
 
 iov[0].iov_base = reinterpret_cast<char *>(&packetHead);
 iov[0].iov_len = sizeof(packetHead);


@@ -255,7 +211,7 @@ while (dataLen < sizeof(buffer))
     {
     if (!WaitPackets(listenSocket))
         {
     {
     if (!WaitPackets(listenSocket))
         {

-        if (!running)
+        if (token.stop_requested())

             return false;
         continue;
         }
             return false;
         continue;
         }


@@ -273,56 +229,58 @@ if (CheckHeader(packetHead))
     return true;
     }
 
     return true;
     }
 

-std::string userLogin((char *)packetHead.login);
-PendingData data;
-data.login = userLogin;
-data.ip = ntohl(packetHead.ip);
-data.id = ntohl(packetHead.id);
+std::string userLogin(reinterpret_cast<const char*>(packetHead.login));
+PendingData pd;
+pd.data.login = userLogin;
+pd.data.ip = ntohl(packetHead.ip);
+pd.data.id = ntohl(packetHead.id);

 
 if (packetHead.packetType == RS_ALIVE_PACKET)
     {
 
 if (packetHead.packetType == RS_ALIVE_PACKET)
     {

-    data.type = PendingData::ALIVE;
+    pd.type = PendingData::ALIVE;

     }
 else if (packetHead.packetType == RS_CONNECT_PACKET)
     {
     }
 else if (packetHead.packetType == RS_CONNECT_PACKET)
     {

-    data.type = PendingData::CONNECT;
-    if (GetParams(buffer, data))
+    pd.type = PendingData::CONNECT;
+    if (GetParams(buffer, pd.data))

         {
         return true;
         }
     }
 else if (packetHead.packetType == RS_DISCONNECT_PACKET)
     {
         {
         return true;
         }
     }
 else if (packetHead.packetType == RS_DISCONNECT_PACKET)
     {

-    data.type = PendingData::DISCONNECT;
-    if (GetParams(buffer, data))
+    pd.type = PendingData::DISCONNECT;
+    if (GetParams(buffer, pd.data))

         {
         return true;
         }
     }
         {
         return true;
         }
     }

+else
+    return true;

 
 

-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-pending.push_back(data);
+std::lock_guard lock(m_mutex);
+pending.push_back(pd);

 
 return false;
 }
 //-----------------------------------------------------------------------------
 bool LISTENER::GetParams(char * buffer, UserData & data)
 {
 
 return false;
 }
 //-----------------------------------------------------------------------------
 bool LISTENER::GetParams(char * buffer, UserData & data)
 {

-RS_PACKET_TAIL packetTail;
+RS::PACKET_TAIL packetTail;

 
 

-Decrypt(&ctxS, (char *)&packetTail, buffer, sizeof(packetTail) / 8);
+DecryptString(&packetTail, buffer, sizeof(packetTail), &ctxS);

 
 

-if (strncmp((char *)packetTail.magic, RS_ID, RS_MAGIC_LEN))
+if (strncmp(reinterpret_cast<const char*>(packetTail.magic), RS_ID, RS_MAGIC_LEN))

     {
     printfd(__FILE__, "Invalid crypto magic\n");
     return true;
     }
 
     {
     printfd(__FILE__, "Invalid crypto magic\n");
     return true;
     }
 

-std::stringstream params;
+std::ostringstream params;

 params << "\"" << data.login << "\" "
        << inet_ntostring(data.ip) << " "
        << data.id << " "
 params << "\"" << data.login << "\" "
        << inet_ntostring(data.ip) << " "
        << data.id << " "

-       << (char *)packetTail.params;
+       << reinterpret_cast<const char*>(packetTail.params);

 
 data.params = params.str();
 
 
 data.params = params.str();
 


@@ -331,86 +289,92 @@ return false;
 //-----------------------------------------------------------------------------
 void LISTENER::ProcessPending()
 {
 //-----------------------------------------------------------------------------
 void LISTENER::ProcessPending()
 {

-std::list<PendingData>::iterator it(pending.begin());
+auto it = pending.begin();

 size_t count = 0;
 printfd(__FILE__, "Pending: %d\n", pending.size());
 while (it != pending.end() && count < 256)
     {
 size_t count = 0;
 printfd(__FILE__, "Pending: %d\n", pending.size());
 while (it != pending.end() && count < 256)
     {

-    std::vector<AliveData>::iterator uit(
-            std::lower_bound(
-                users.begin(),
-                users.end(),
-                it->login)
-            );
+    auto uit = std::lower_bound(users.begin(), users.end(), it->data.login);

     if (it->type == PendingData::CONNECT)
         {
     if (it->type == PendingData::CONNECT)
         {

-        if (uit == users.end() || uit->login != it->login)
+        printfd(__FILE__, "Connect packet\n");
+        if (uit == users.end() || uit->data.login != it->data.login)

             {
             {

+            printfd(__FILE__, "Connect new user '%s'\n", it->data.login.c_str());

             // Add new user
             Connect(*it);
             // Add new user
             Connect(*it);

-            users.insert(uit, AliveData(static_cast<UserData>(*it)));
+            users.insert(uit, AliveData(it->data));

             }
             }

-        else if (uit->login == it->login)
+        else

             {
             {

+            printfd(__FILE__, "Update existing user '%s'\n", it->data.login.c_str());

             // Update already existing user
             time(&uit->lastAlive);
             // Update already existing user
             time(&uit->lastAlive);

-            uit->params = it->params;
+            uit->data.params = it->data.params;

             }
         }
     else if (it->type == PendingData::ALIVE)
         {
             }
         }
     else if (it->type == PendingData::ALIVE)
         {

-        if (uit != users.end() && uit->login == it->login)
+        printfd(__FILE__, "Alive packet\n");
+        if (uit != users.end() && uit->data.login == it->data.login)

             {
             {

+            printfd(__FILE__, "Alive user '%s'\n", it->data.login.c_str());

             // Update existing user
             time(&uit->lastAlive);
             }
             // Update existing user
             time(&uit->lastAlive);
             }

+        else
+            {
+            printfd(__FILE__, "Alive user '%s' is not found\n", it->data.login.c_str());
+            }

         }
     else if (it->type == PendingData::DISCONNECT)
         {
         }
     else if (it->type == PendingData::DISCONNECT)
         {

-        if (uit != users.end() && uit->login == it->login.c_str())
+        printfd(__FILE__, "Disconnect packet\n");
+        if (uit != users.end() && uit->data.login == it->data.login.c_str())

             {
             {

+            printfd(__FILE__, "Disconnect user '%s'\n", it->data.login.c_str());

             // Disconnect existing user
             // Disconnect existing user

+            uit->data.params = it->data.params;

             Disconnect(*uit);
             users.erase(uit);
             }
             Disconnect(*uit);
             users.erase(uit);
             }

+        else
+            {
+            printfd(__FILE__, "Cannot find user '%s' for disconnect\n", it->data.login.c_str());
+            }
+        }
+    else
+        {
+        printfd(__FILE__, "Unknown packet type\n");

         }
     ++it;
     ++count;
     }
         }
     ++it;
     ++count;
     }

-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+std::lock_guard lock(m_mutex);

 pending.erase(pending.begin(), it);
 }
 //-----------------------------------------------------------------------------
 void LISTENER::ProcessTimeouts()
 {
 pending.erase(pending.begin(), it);
 }
 //-----------------------------------------------------------------------------
 void LISTENER::ProcessTimeouts()
 {

-const std::vector<AliveData>::iterator it(
-        std::stable_partition(
-            users.begin(),
-            users.end(),
-            IsNotTimedOut(userTimeout)
-        )
-    );
+const auto now = time(nullptr);
+const auto it = std::stable_partition(users.begin(), users.end(), [this, now](const auto& data){ return difftime(now, data.lastAlive) < userTimeout; });

 
 if (it != users.end())
     {
     printfd(__FILE__, "Total users: %d, users to disconnect: %d\n", users.size(), std::distance(it, users.end()));
 
 
 if (it != users.end())
     {
     printfd(__FILE__, "Total users: %d, users to disconnect: %d\n", users.size(), std::distance(it, users.end()));
 

-    std::for_each(
-            it,
-            users.end(),
-            DisconnectUser(*this)
-        );
+    std::for_each(it, users.end(), [this](const auto& user){ Disconnect(user);});

 
     users.erase(it, users.end());
     }
 }
 //-----------------------------------------------------------------------------
 
     users.erase(it, users.end());
     }
 }
 //-----------------------------------------------------------------------------

-bool LISTENER::Connect(const UserData & data) const
+bool LISTENER::Connect(const PendingData & pd) const

 {
 {

-printfd(__FILE__, "Connect %s\n", data.login.c_str());
+printfd(__FILE__, "Connect %s\n", pd.data.login.c_str());

 if (access(scriptOnConnect.c_str(), X_OK) == 0)
     {
 if (access(scriptOnConnect.c_str(), X_OK) == 0)
     {

-    if (ScriptExec(scriptOnConnect + " " + data.params))
+    if (ScriptExec((scriptOnConnect + " " + pd.data.params).c_str()))

         {
         WriteServLog("Script %s cannot be executed for an unknown reason.", scriptOnConnect.c_str());
         return true;
         {
         WriteServLog("Script %s cannot be executed for an unknown reason.", scriptOnConnect.c_str());
         return true;


@@ -424,12 +388,12 @@ else
 return false;
 }
 //-----------------------------------------------------------------------------
 return false;
 }
 //-----------------------------------------------------------------------------

-bool LISTENER::Disconnect(const UserData & data) const
+bool LISTENER::Disconnect(const AliveData& ad) const

 {
 {

-printfd(__FILE__, "Disconnect %s\n", data.login.c_str());
+printfd(__FILE__, "Disconnect %s\n", ad.data.login.c_str());

 if (access(scriptOnDisconnect.c_str(), X_OK) == 0)
     {
 if (access(scriptOnDisconnect.c_str(), X_OK) == 0)
     {

-    if (ScriptExec(scriptOnDisconnect + " " + data.params))
+    if (ScriptExec((scriptOnDisconnect + " " + ad.data.params).c_str()))

         {
         WriteServLog("Script %s cannot be executed for an unknown reson.", scriptOnDisconnect.c_str());
         return true;
         {
         WriteServLog("Script %s cannot be executed for an unknown reson.", scriptOnDisconnect.c_str());
         return true;


@@ -443,63 +407,20 @@ else
 return false;
 }
 //-----------------------------------------------------------------------------
 return false;
 }
 //-----------------------------------------------------------------------------

-bool LISTENER::CheckHeader(const RS_PACKET_HEADER & header) const
+bool LISTENER::CheckHeader(const RS::PACKET_HEADER & header) const

 {
 {

-if (strncmp((char *)header.magic, RS_ID, RS_MAGIC_LEN))
-    {
+if (strncmp(reinterpret_cast<const char*>(header.magic), RS_ID, RS_MAGIC_LEN))

     return true;
     return true;

-    }
-if (strncmp((char *)header.protoVer, "02", RS_PROTO_VER_LEN))
-    {
+if (strncmp(reinterpret_cast<const char*>(header.protoVer), "02", RS_PROTO_VER_LEN))

     return true;
     return true;

-    }

 return false;
 }
 //-----------------------------------------------------------------------------
 return false;
 }
 //-----------------------------------------------------------------------------

-bool LISTENER::WaitPackets(int sd) const
-{
-fd_set rfds;
-FD_ZERO(&rfds);
-FD_SET(sd, &rfds);
-
-struct timeval tv;
-tv.tv_sec = 0;
-tv.tv_usec = 500000;
-
-int res = select(sd + 1, &rfds, NULL, NULL, &tv);
-if (res == -1) // Error
-    {
-    if (errno != EINTR)
-        {
-        printfd(__FILE__, "Error on select: '%s'\n", strerror(errno));
-        }
-    return false;
-    }
-
-if (res == 0) // Timeout
-    {
-    return false;
-    }
-
-return true;
-}
-//-----------------------------------------------------------------------------
-inline

 void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password)
 {
 void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password)
 {

-unsigned char keyL[PASSWD_LEN];
+char keyL[PASSWD_LEN];

 memset(keyL, 0, PASSWD_LEN);
 memset(keyL, 0, PASSWD_LEN);

-strncpy((char *)keyL, password.c_str(), PASSWD_LEN);
+strncpy(keyL, password.c_str(), PASSWD_LEN);

 Blowfish_Init(ctx, keyL, PASSWD_LEN);
 }
 //-----------------------------------------------------------------------------
 Blowfish_Init(ctx, keyL, PASSWD_LEN);
 }
 //-----------------------------------------------------------------------------

-inline
-void Decrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8)
-{
-if (dst != src)
-    memcpy(dst, src, len8 * 8);
-
-for (int i = 0; i < len8; i++)
-    Blowfish_Decrypt(ctx, (uint32_t *)(dst + i * 8), (uint32_t *)(dst + i * 8 + 4));
-}
-//-----------------------------------------------------------------------------