Calender View Sync Prototype Working Correctly

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

@@ -207,11 +207,14 @@ public class DataBaseHandler
             Entry[][] entries = new Entry[6][20];
             for(int i = 0; i < 6; i++)
             {
+                int f = 0;
+
                 for(int j = 0; j < entryList.size(); j++)
                 {
                     if(entryList.get(j).getDaynumber() == i + daynumber)
                     {
-                        entries[i][j] = entryList.get(j);
+                        entries[i][f] = entryList.get(j);
+                        f++;
                     }
                 }
             }
@@ -236,6 +239,18 @@ public class DataBaseHandler
         }
     }
 
+    public void updateEntry(Entry entry)
+    {
+        try
+        {
+            st.executeUpdate("update entries set timeend=" + entry.getTimeend() + " where id=" + entry.getId());
+        }
+        catch(Exception e)
+        {
+
+        }
+    }
+
     public Entry resultSetToEntry(ResultSet rs)
     {
         try

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

@@ -3,6 +3,7 @@ package com.example.backend.anwprj.controller;
 import com.example.backend.anwprj.DataBaseHandler;
 import com.example.backend.anwprj.Entries.Entry;
 import com.example.backend.anwprj.Users.User;
+import com.example.backend.anwprj.Users.UserPermissions;
 import com.example.backend.anwprj.Users.UserSessionIDHandler;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -19,27 +20,62 @@ public class EntriesController
 
     @CrossOrigin
     @PostMapping("/entries")
-    public ResponseEntity<Boolean> postEntry(@RequestBody Entry entry)
+    public ResponseEntity<Boolean> postEntry(@RequestBody Entry entry, @RequestParam(name = "sessionid") String sessionid)
     {
-        db.addEntry(entry);
-        return new ResponseEntity<>(true, HttpStatus.OK);
+        User sessionUser = UserSessionIDHandler.getUserBySessionID(sessionid);
+
+        if (sessionUser != null)
+        {
+            db.addEntry(entry);
+            return new ResponseEntity<>(true, HttpStatus.OK);
+        }
+
+        return new ResponseEntity<>(false, HttpStatus.FORBIDDEN);
     }
 
     @CrossOrigin
     @GetMapping("/entries")
-    public ResponseEntity<Entry[][]> getEntries(@RequestParam(name="semesterid") int semesterid,
-                                                @RequestParam(name="daynumber") int daynumber,
-                                                @RequestParam(name="yearnumber") int yearnumber)
+    public ResponseEntity<Entry[][]> getEntries(@RequestParam(name = "semesterid") int semesterid,
+                                                @RequestParam(name = "daynumber") int daynumber,
+                                                @RequestParam(name = "yearnumber") int yearnumber,
+                                                @RequestParam(name = "sessionid") String sessionid)
     {
+        User sessionUser = UserSessionIDHandler.getUserBySessionID(sessionid);
 
-        return new ResponseEntity<>(db.getEntries(semesterid, daynumber, yearnumber), HttpStatus.OK);
+        if (sessionUser != null)
+        {
+            return new ResponseEntity<>(db.getEntries(semesterid, daynumber, yearnumber), HttpStatus.OK);
+        }
+
+        return new ResponseEntity<>(null, HttpStatus.FORBIDDEN);
     }
 
     @CrossOrigin
     @DeleteMapping("/entries")
-    public ResponseEntity<Boolean> deleteEntry(@RequestParam(name="id") int id)
+    public ResponseEntity<Boolean> deleteEntry(@RequestParam(name = "id") int id, @RequestParam(name = "sessionid") String sessionid)
     {
-        db.deleteEntry(id);
-        return new ResponseEntity<>(true, HttpStatus.OK);
+        User sessionUser = UserSessionIDHandler.getUserBySessionID(sessionid);
+
+        if (sessionUser != null)
+        {
+            db.deleteEntry(id);
+            return new ResponseEntity<>(true, HttpStatus.OK);
+        }
+
+        return new ResponseEntity<>(false, HttpStatus.FORBIDDEN);
+    }
+
+    @CrossOrigin
+    @PutMapping("/entries")
+    public ResponseEntity<Boolean> updateEntry(@RequestParam(name="sessionid") String sessionid, @RequestBody Entry entry)
+    {
+        User sessionUser = UserSessionIDHandler.getUserBySessionID(sessionid);
+        if (sessionUser != null)
+        {
+            db.updateEntry(entry);
+            return new ResponseEntity<>(true, HttpStatus.OK);
+        }
+
+        return new ResponseEntity<>(false, HttpStatus.FORBIDDEN);
     }
 }