In Semester Edit and Create there are real users to select now

And dummy data of modules to select from a list

backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java

@@ -442,6 +442,33 @@ public class DataBaseHandler
     /**
     USER
      */
+
+
+    //TODO: Nur nicht admins werden aktuell ausgegeben
+    public User[] getAllUsers()
+    {
+        try
+        {
+            ResultSet rs = st.executeQuery("select * from users where permission=0");
+
+            User u = null;
+
+            List<User> output = new ArrayList<>();
+
+            while((u = resultSetToUser(rs)) != null)
+            {
+                u.clearOutPassword();
+                output.add(u);
+            }
+
+            return output.toArray(new User[0]);
+        }
+        catch(Exception e)
+        {
+            return null;
+        }
+    }
+
     //get a user object by mail and password from the database
     public User getUser(String mail, String password)
     {

backend/src/main/java/com/example/backend/anwprj/controller/UserController.java

@@ -151,4 +151,19 @@ public class UserController {
 
         return new ResponseEntity<>(HttpStatus.FORBIDDEN);
     }
+
+    @CrossOrigin
+    @GetMapping("/users/all")
+    public ResponseEntity<User[]> getAllUsers(@RequestParam(name = "sessionid") String sessionid)
+    {
+        User u = UserSessionIDHandler.getUserBySessionID(sessionid);
+
+        if(u != null && u.getPermissions() == UserPermissions.admin.getValue())
+        {
+            User[] output = db.getAllUsers();
+            return new ResponseEntity<>(output, HttpStatus.OK);
+        }
+
+        return new ResponseEntity<>(HttpStatus.FORBIDDEN);
+    }
 }