user creation added in main

src/BashManager.cpp

@@ -7,6 +7,7 @@
 
 int BashManager::execute(string command)
 {
+    cout << "command is " << command << endl;
     FILE * p = popen(command.c_str(),"r"); 
     if( p == NULL)
     {
@@ -28,6 +29,10 @@ string BashManager::executeAndReadResult(string command)
     }
     while(fgets(lineBuffer,sizeof(lineBuffer),p)){
         result += lineBuffer;
+        //removing newline character
+        if (!result.empty() && result[result.length()-1] == '\n') {
+            result.erase(result.length()-1);
+        }
     }
     pclose(p);
     return result;

src/Services.cpp

@@ -70,13 +70,16 @@ vector <Service> Services::readServicesFromCSV (string CSV) const
         cout << "Invalid services.csv file." << endl;
     }else{
         string line; 
-        string tmpUserID; //used before converting to int
+        string tmpUserID=""; //used before converting to int
         int userID;
-        string username="";
+        string username;
-        string server="";
+        string server;
         list <string> servers;
         while(getline(streamServices,line)){
             servers.clear();
+            tmpUserID="";
+            username="";
+            server="";
             if (line.empty() || line[0] == '#') { //not taking comments and empty lines into account
                 continue; 
             }

src/main.cpp

@@ -34,8 +34,27 @@ int isServiceOnServer(string serviceUsername)
 }
 
 int createUser(string serviceUsername){
-    //TO DO
+    //this method creates a Unix user dedicated to the service
-    cout << "create user called" << endl;
+    //get the User ID from servers.csv
+    int uidStart=2000; //so that the uids do not overlap with existing uids
+    Services services = Services("./services/services.csv");
+    const Service * service = services.findByUsername(serviceUsername);
+    int uid = (*service).getUserID()+uidStart;
+    //test if user already exists
+    string cmd = "id -u "+serviceUsername; 
+    string res = BashManager::executeAndReadResult (cmd);
+    if(res==to_string(uid)){
+        cout << "user already existed" << endl;
+        return 0;
+    }
+    //create user
+    string cmd2 ="useradd -u " + to_string(uid) + " " + serviceUsername;
+    cout << cmd2 << endl;
+    int res2 = BashManager::execute(cmd2);
+    if (res2 != 0){
+        cerr << "Error when executing the bash command to create a user specific to the service." << endl;
+        return -1;
+    }
     return 0;
 }
 

testenv/services/services.csv

@@ -1,4 +1,4 @@
-ID,Name,Server
+#ID,Name,Server
 1,test.sh8s.sh,ordinosaure
 2,truc.sh8s.sh,shlag_cluster
 3,other.sh8s.sh,