Added IPAddressList capability and whitelist/blacklist capability.

IPAddressList.cpp

@@ -0,0 +1,23 @@
+#include "IPAddressList.h"
+
+namespace core {
+   
+   IPAddressList::IPAddressList() {}
+   
+   std::map<std::string, IPAddress> IPAddressList::getList() {
+      return list;
+   }
+
+   bool IPAddressList::add(IPAddress ipAddress) {
+      list.insert(std::make_pair(ipAddress.getClientAddress(), ipAddress));
+   }
+
+   bool IPAddressList::remove(IPAddress ipAddress) {
+      
+   }
+   
+   bool IPAddressList::contains(std::string ipAddress) {
+      return list.find(ipAddress) != list.end();
+   }
+
+}

IPAddressList.h

@@ -0,0 +1,26 @@
+#ifndef __IPAddressList_h__
+#define __IPAddressList_h__
+
+#include "includes"
+#include "IPAddress.h"
+
+namespace core {
+
+   class IPAddressList {
+
+    public:
+      IPAddressList();
+      
+      std::map<std::string, IPAddress> getList();
+      bool add(IPAddress ipAddress);
+      bool remove(IPAddress ipAddress);
+      bool contains(std::string ipAddress);
+      
+    private:
+      std::map<std::string, IPAddress> list;
+      std::map<std::string, IPAddress>::iterator it = list.begin();      
+   };
+   
+}
+
+#endif

ServerCore.mk

@@ -13,7 +13,7 @@ CurrentFileName        :=
 CurrentFilePath        :=
 CurrentFileFullPath    :=
 User                   :=Brad Arant
-Date                   :=23/06/19
+Date                   :=27/07/19
 CodeLitePath           :=/home/bradarant/.codelite
 LinkerName             :=/usr/bin/x86_64-linux-gnu-g++
 SharedObjectLinkerName :=/usr/bin/x86_64-linux-gnu-g++ -shared -fPIC
@@ -62,7 +62,7 @@ AS       := /usr/bin/x86_64-linux-gnu-as
 CodeLiteDir:=/usr/share/codelite
 Objects0=$(IntermediateDirectory)/Command.cpp$(ObjectSuffix) $(IntermediateDirectory)/ConsoleServer.cpp$(ObjectSuffix) $(IntermediateDirectory)/ConsoleSession.cpp$(ObjectSuffix) $(IntermediateDirectory)/EPoll.cpp$(ObjectSuffix) $(IntermediateDirectory)/Exception.cpp$(ObjectSuffix) $(IntermediateDirectory)/File.cpp$(ObjectSuffix) $(IntermediateDirectory)/IPAddress.cpp$(ObjectSuffix) $(IntermediateDirectory)/Log.cpp$(ObjectSuffix) $(IntermediateDirectory)/Session.cpp$(ObjectSuffix) $(IntermediateDirectory)/Socket.cpp$(ObjectSuffix) \
 	$(IntermediateDirectory)/TCPServerSocket.cpp$(ObjectSuffix) $(IntermediateDirectory)/TCPSocket.cpp$(ObjectSuffix) $(IntermediateDirectory)/Thread.cpp$(ObjectSuffix) $(IntermediateDirectory)/Timer.cpp$(ObjectSuffix) $(IntermediateDirectory)/TLSServerSocket.cpp$(ObjectSuffix) $(IntermediateDirectory)/TLSSession.cpp$(ObjectSuffix) $(IntermediateDirectory)/UDPServerSocket.cpp$(ObjectSuffix) $(IntermediateDirectory)/UDPSocket.cpp$(ObjectSuffix) $(IntermediateDirectory)/CommandList.cpp$(ObjectSuffix) $(IntermediateDirectory)/TerminalSession.cpp$(ObjectSuffix) \
-	$(IntermediateDirectory)/Service.cpp$(ObjectSuffix) 
+	$(IntermediateDirectory)/Service.cpp$(ObjectSuffix) $(IntermediateDirectory)/IPAddressList.cpp$(ObjectSuffix) 
 
 
 
@@ -263,6 +263,14 @@ $(IntermediateDirectory)/Service.cpp$(DependSuffix): Service.cpp
 $(IntermediateDirectory)/Service.cpp$(PreprocessSuffix): Service.cpp
 	$(CXX) $(CXXFLAGS) $(IncludePCH) $(IncludePath) $(PreprocessOnlySwitch) $(OutputSwitch) $(IntermediateDirectory)/Service.cpp$(PreprocessSuffix) Service.cpp
 
+$(IntermediateDirectory)/IPAddressList.cpp$(ObjectSuffix): IPAddressList.cpp $(IntermediateDirectory)/IPAddressList.cpp$(DependSuffix)
+	$(CXX) $(IncludePCH) $(SourceSwitch) "/home/bradarant/barant/ServerCore/IPAddressList.cpp" $(CXXFLAGS) $(ObjectSwitch)$(IntermediateDirectory)/IPAddressList.cpp$(ObjectSuffix) $(IncludePath)
+$(IntermediateDirectory)/IPAddressList.cpp$(DependSuffix): IPAddressList.cpp
+	@$(CXX) $(CXXFLAGS) $(IncludePCH) $(IncludePath) -MG -MP -MT$(IntermediateDirectory)/IPAddressList.cpp$(ObjectSuffix) -MF$(IntermediateDirectory)/IPAddressList.cpp$(DependSuffix) -MM IPAddressList.cpp
+
+$(IntermediateDirectory)/IPAddressList.cpp$(PreprocessSuffix): IPAddressList.cpp
+	$(CXX) $(CXXFLAGS) $(IncludePCH) $(IncludePath) $(PreprocessOnlySwitch) $(OutputSwitch) $(IntermediateDirectory)/IPAddressList.cpp$(PreprocessSuffix) IPAddressList.cpp
+
 
 -include $(IntermediateDirectory)/*$(DependSuffix)
 ##

ServerCore.project

@@ -138,6 +138,8 @@
     <File Name="TerminalSession.cpp"/>
     <File Name="Service.cpp"/>
     <File Name="Service.h"/>
+    <File Name="IPAddressList.h"/>
+    <File Name="IPAddressList.cpp"/>
   </VirtualDirectory>
   <Dependencies Name="Debug"/>
   <Dependencies Name="Release"/>

ServerCore.txt

@@ -1 +1 @@
-./Debug/Command.cpp.o ./Debug/ConsoleServer.cpp.o ./Debug/ConsoleSession.cpp.o ./Debug/EPoll.cpp.o ./Debug/Exception.cpp.o ./Debug/File.cpp.o ./Debug/IPAddress.cpp.o ./Debug/Log.cpp.o ./Debug/Session.cpp.o ./Debug/Socket.cpp.o ./Debug/TCPServerSocket.cpp.o ./Debug/TCPSocket.cpp.o ./Debug/Thread.cpp.o ./Debug/Timer.cpp.o ./Debug/TLSServerSocket.cpp.o ./Debug/TLSSession.cpp.o ./Debug/UDPServerSocket.cpp.o ./Debug/UDPSocket.cpp.o ./Debug/CommandList.cpp.o ./Debug/TerminalSession.cpp.o ./Debug/Service.cpp.o
+./Debug/Command.cpp.o ./Debug/ConsoleServer.cpp.o ./Debug/ConsoleSession.cpp.o ./Debug/EPoll.cpp.o ./Debug/Exception.cpp.o ./Debug/File.cpp.o ./Debug/IPAddress.cpp.o ./Debug/Log.cpp.o ./Debug/Session.cpp.o ./Debug/Socket.cpp.o ./Debug/TCPServerSocket.cpp.o ./Debug/TCPSocket.cpp.o ./Debug/Thread.cpp.o ./Debug/Timer.cpp.o ./Debug/TLSServerSocket.cpp.o ./Debug/TLSSession.cpp.o ./Debug/UDPServerSocket.cpp.o ./Debug/UDPSocket.cpp.o ./Debug/CommandList.cpp.o ./Debug/TerminalSession.cpp.o ./Debug/Service.cpp.o ./Debug/IPAddressList.cpp.o

Socket.cpp

@@ -47,26 +47,17 @@ namespace core {
    
    void Socket::eventReceived(struct epoll_event event) {
       
-      //   std::stringstream stream;
-      //   stream << "Event received on socket " << event.data.fd << ": ";  
-      //   if(event.events & EPOLLRDHUP) stream << "EPOLLRDHUP ";
-      //   if(event.events & EPOLLIN) stream << "EPOLLIN ";
-      //   if(event.events & EPOLLOUT) stream << "EPOLLOUT ";
-      //   if(event.events & EPOLLERR) stream << "EPOLLERR ";
-      //   stream << "[" << event.events << "]";
-      //   BMALog(LOG_DEBUG_4) << stream.str();
-      // 
       if(event.events & EPOLLRDHUP) {
-	 Log(LOG_DEBUG_2) << "Socket " << descriptor << " received disconnect from client.";
+         Log(LOG_DEBUG_2) << "Socket " << descriptor << " received disconnect from client.";
-	 shutdown();
+         shutdown();
-	 return;
+         return;
       }
       
       if(event.events & EPOLLIN) 
-	receiveData(buffer, length);
+        receiveData(buffer, length);
          
       if(event.events & EPOLLOUT) 
-	writeSocket();
+        writeSocket();
          
       enable(true);
    }

Socket.h

@@ -37,6 +37,10 @@ namespace core {
       Socket(EPoll &ePoll);
       ~Socket();
 
+      ///
+
+      void shutdown();
+
       void setDescriptor(int descriptor); ///<Set the descriptor for the socket.
    
       int getDescriptor(); ///< Get the descriptor for the socket.   
@@ -123,8 +127,6 @@ namespace core {
    
       virtual void onDataReceived(std::string data) = 0; ///< Called when data is received from the socket.
    
-      void shutdown();
-   
       ///
       /// receiveData will read the data from the socket and place it in the socket buffer.
       /// TLS layer overrides this to be able to read from SSL.

TCPServerSocket.cpp

@@ -2,6 +2,7 @@
 #include "EPoll.h"
 #include "Session.h"
 #include "Exception.h"
+#include "Log.h"
 
 namespace core {
 
@@ -24,12 +25,25 @@ namespace core {
    void TCPServerSocket::onDataReceived(std::string data) {
       Log(LOG_DEBUG_2) << "Connection request on socket " << getDescriptor() << ".";            
       Session *session = accept();
-      service.sessions.push_back(session);   
+      if(session) service.sessions.push_back(session);   
    }
    
    Session * TCPServerSocket::accept() {      
       Session *session = getSocketAccept();      
       session->setDescriptor(::accept(getDescriptor(), (struct sockaddr *)&session->ipAddress.addr, &session->ipAddress.addressLength));
+
+      if(blackList && blackList->contains(session->ipAddress.getClientAddress())) {
+         session->shutdown();
+         Log(LOG_WARN) << "Client at IP address " << session->ipAddress.getClientAddress() << " is blacklisted and was denied a connection.";
+         return NULL;
+      }
+
+      if(whiteList && !whiteList->contains(session->ipAddress.getClientAddress())) {
+         session->shutdown();
+         Log(LOG_WARN) << "Client at IP address " << session->ipAddress.getClientAddress() << " is not authorized and was denied a connection.";
+         return NULL;
+      }
+      
       ePoll.registerSocket(session);   
       Log(LOG_DEBUG_2) << "Session started on socket " << session->getDescriptor() << ".";
       return session;

TCPServerSocket.h

@@ -4,6 +4,7 @@
 #include "Socket.h"
 #include "TCPSocket.h"
 #include "Service.h"
+#include "IPAddressList.h"
 
 namespace core {
    
@@ -31,6 +32,7 @@ namespace core {
       /// @param port the port number that the socket will listen on.
       /// @param commandName the name of the command used to invoke the status display for this object.
       /// @return the instance of the BMATCPServerSocket.
+      ///
       
       TCPServerSocket(EPoll &ePoll, Service &service, IPAddress address);
       
@@ -40,8 +42,27 @@ namespace core {
       
       ~TCPServerSocket();
 
+      /// 
+      /// The service object reference used to access associated server information such as sessions 
+      /// and other extended managers.
+      ///
+      
       Service &service;
       
+      ///
+      /// If not NULL the blacklist object can be assigned to this server socket and the server
+      /// IP addresses connecting to the server attempting to accept a socket are contained in 
+      /// this list then the connection is rejected and no accept is granted. 
+      ///
+      
+      IPAddressList *blackList;      
+      ///
+      /// If not NULL the blacklist object can be assigned to this server socket and the server
+      /// IP addresses connecting to the server attempting to accept a socket are contained in 
+      /// this list then the connection is rejected and no accept is granted. 
+      ///
+      IPAddressList *whiteList;
+      
     protected:
       
 //      virtual void init();