• Only allow permission changes for users who are authorized to do so

9 files changed, 2073 insertions, 32 deletions

diff --git a/dozentenmodul/src/main/java/gui/image/EditImageTechnisch_GUI.java b/dozentenmodul/src/main/java/gui/image/EditImageTechnisch_GUI.java
index 2b21bd04..f9701a0c 100644
--- a/dozentenmodul/src/main/java/gui/image/EditImageTechnisch_GUI.java
+++ b/dozentenmodul/src/main/java/gui/image/EditImageTechnisch_GUI.java
@@ -38,10 +38,10 @@ import javax.swing.border.TitledBorder;
 
 import server.generated.Server.Client;
 import thrift.ThriftConnection;
-import util.GuiOrganizer;
 import util.OpenLinks;
 import models.Image;
 import models.Links;
+import models.person;
 
 import javax.swing.JComboBox;
 
@@ -348,20 +348,27 @@ public class EditImageTechnisch_GUI extends JFrame {
 						Image.image.setInternet(chckbxIsInternetBlocked.isSelected());
 						Image.image.setLicensed(chckbxIsLicensed.isSelected());
 						Image.image.setOS(comboBox.getSelectedItem().toString());
+
 						
-						//System.out.println("OS bei Klick auf Weiter: "+Image.image.getOS());
+						LOGGER.info("user is '"+person.verantwortlicher.getUserID()+"' and imageID is '"+Image.image.getImageId()+"'.");
 						
-						//LOGGER.info("OS: " + Image.image.getOS() +
-						//			", Vorlage: " + Image.image.isVorlage() +
-						//			", Lizenzpflichtig: " + Image.image.isLicensed() +
-						//			", Internetsperre: " + Image.image.isInternet() +
-						//			", CPU: " + Image.image.getCpu() +
-						//			",  RAM: " + Image.image.getRam());
 						
-						// oeffnet das naechste Fenster
-						PermissionEditImage_GUI ea=new PermissionEditImage_GUI(c);
-						ea.setVisible(true);
-						dispose();
+						try {
+							//check if user may change permissions and choose window
+							if(client.userIsImageAdmin(person.verantwortlicher.getUserID(),Image.image.getImageId()) == true){
+								//user has permission, go to permission GUI
+								PermissionEditImage_GUI ea=new PermissionEditImage_GUI(c);
+								ea.setVisible(true);
+								dispose();
+							} else {
+								// user does not have permission, go straight to upload GUI
+								FTPEditUploader_GUI ea = new FTPEditUploader_GUI(c);
+								ea.setVisible(true);
+								dispose();
+							}
+						} catch (TException e1) {
+							e1.printStackTrace();
+						}
 
 					}
 				});
diff --git a/dozentenmodul/src/main/java/gui/image/FTPEditUploader_GUI.java b/dozentenmodul/src/main/java/gui/image/FTPEditUploader_GUI.java
index d0a42e4b..415e3dee 100644
--- a/dozentenmodul/src/main/java/gui/image/FTPEditUploader_GUI.java
+++ b/dozentenmodul/src/main/java/gui/image/FTPEditUploader_GUI.java
@@ -453,10 +453,24 @@ public class FTPEditUploader_GUI extends JFrame implements
 								}
 								task.cancel(true);
 								// not loading files, go back one page
-								dispose();
-								PermissionEditImage_GUI ei = new PermissionEditImage_GUI(
-										c);
-								ei.setVisible(true);
+								
+								try {
+									if(client.userIsImageAdmin(person.verantwortlicher.getUserID(), Image.image.getImageId()) == true){
+										//user is admin and may change permissions
+										PermissionEditImage_GUI ei = new PermissionEditImage_GUI(c);
+										ei.setVisible(true);
+										dispose();
+									} else {
+										//user may not change permissions
+										EditImageTechnisch_GUI ei = new EditImageTechnisch_GUI(c);
+										ei.setVisible(true);
+										dispose();
+									}
+								} catch (TException e) {
+									// TODO Auto-generated catch block
+									e.printStackTrace();
+								}
+								
 
 							}// end if coice
 						} else {
@@ -468,10 +482,22 @@ public class FTPEditUploader_GUI extends JFrame implements
 											"Abbrechen und zurück",
 											JOptionPane.YES_NO_OPTION);
 							if (selectedOption == JOptionPane.YES_OPTION) {
-								dispose();
-								PermissionEditImage_GUI m = new PermissionEditImage_GUI(
-										c);
-								m.setVisible(true);
+								try {
+									if(client.userIsImageAdmin(person.verantwortlicher.getUserID(), Image.image.getImageId()) == true){
+										//user is admin and may change permissions
+										PermissionEditImage_GUI ei = new PermissionEditImage_GUI(c);
+										ei.setVisible(true);
+										dispose();
+									} else {
+										//user may not change permissions
+										EditImageTechnisch_GUI ei = new EditImageTechnisch_GUI(c);
+										ei.setVisible(true);
+										dispose();
+									}
+								} catch (TException e) {
+									// TODO Auto-generated catch block
+									e.printStackTrace();
+								}
 							} else {
 								// for actions if "no" is selected. tbd.
 							}
diff --git a/dozentenmodul/src/main/java/gui/image/PermissionEditImage_GUI.java b/dozentenmodul/src/main/java/gui/image/PermissionEditImage_GUI.java
index a794f404..7f61d827 100644
--- a/dozentenmodul/src/main/java/gui/image/PermissionEditImage_GUI.java
+++ b/dozentenmodul/src/main/java/gui/image/PermissionEditImage_GUI.java
@@ -571,15 +571,12 @@ public class PermissionEditImage_GUI extends JFrame {
 	// save the entered rights into the model and prepare them to be written to
 	// the database
 	private void saveTableToList() {
-		//System.out.println("Saving Table to List");
+		//LOGGER.info("Saving Table to List");
 
 		List<person> list = new ArrayList<person>();
 
 		int seperatorIndex = 0;
 
-		// get values from table and save the checkbox values
-		if (map == null)
-			//System.out.println("Error: map is null");
 
 		// for (int i = 0; i < map.size(); i++) {
 		for (int i = 0; i < table.getRowCount(); i++) {
@@ -628,6 +625,7 @@ public class PermissionEditImage_GUI extends JFrame {
 
 		//permissions could have changed, compare vals at the end and update in db (quick and dirty due to time limitations)
 		RightsManagement.rightsManagement.setPermittedUserList(list);
+		//LOGGER.info("number of permission="+list.size());
 	}// end saveTableToList()
 
 	private void checkIntegrity(int row) {
diff --git a/dozentenmodul/src/main/java/gui/lecture/EditLectureAllgemein_GUI.java b/dozentenmodul/src/main/java/gui/lecture/EditLectureAllgemein_GUI.java
index e66adea2..1d144c89 100644
--- a/dozentenmodul/src/main/java/gui/lecture/EditLectureAllgemein_GUI.java
+++ b/dozentenmodul/src/main/java/gui/lecture/EditLectureAllgemein_GUI.java
@@ -39,10 +39,15 @@ import javax.swing.UnsupportedLookAndFeelException;
 import javax.swing.border.EmptyBorder;
 import javax.swing.border.TitledBorder;
 
+import org.apache.thrift.TException;
+
+//import server.generated.Server.Client;
+import models.Client;
 import models.Image;
 import models.ItemOwner;
 import models.Lecture;
 import models.Links;
+//import models.person;
 import models.person;
 
 import util.OpenLinks;
@@ -70,6 +75,7 @@ public class EditLectureAllgemein_GUI extends JFrame {
 	Date endDate;
 	Component c = null;
 	private final ButtonGroup buttonGroup = new ButtonGroup();
+	server.generated.Server.Client client = models.Client.clientcon.getClient();
 	private boolean descriptionLengthOK = false; // description may not be
 													// longer than
 													// MAX_DESCRIPTION_LENGTH
@@ -490,9 +496,26 @@ public class EditLectureAllgemein_GUI extends JFrame {
 							Image.image.setImagename(textFieldLaborname
 									.getText().trim());
 
-							PermissionEditLecture_GUI ev = new PermissionEditLecture_GUI(c);
-							ev.setVisible(true);
-							dispose();
+							//check which GUI to open
+							try {
+								if(client.userIsLectureAdmin(person.verantwortlicher.getUserID(), Lecture.lecture.getid())){
+									//user is admin of the lecture
+									PermissionEditLecture_GUI ev = new PermissionEditLecture_GUI(c);
+									ev.setVisible(true);
+									dispose();
+									
+								} else {
+									//user is not admin of the lecture
+									EditLectureLink_GUI el = new EditLectureLink_GUI(c);
+									el.setVisible(true);
+									dispose();
+								}
+							} catch (TException e1) {
+								// TODO Auto-generated catch block
+								e1.printStackTrace();
+							}
+							
+							
 						}
 
 					}
diff --git a/dozentenmodul/src/main/java/gui/lecture/EditLectureLink_GUI.java b/dozentenmodul/src/main/java/gui/lecture/EditLectureLink_GUI.java
index 4171ff0e..d1fe57e3 100644
--- a/dozentenmodul/src/main/java/gui/lecture/EditLectureLink_GUI.java
+++ b/dozentenmodul/src/main/java/gui/lecture/EditLectureLink_GUI.java
@@ -627,11 +627,26 @@ public class EditLectureLink_GUI extends JFrame {
 				JButton btnBack = new JButton("Zurück");
 				btnBack.addActionListener(new ActionListener() {
 					public void actionPerformed(ActionEvent e) {
-
-						PermissionEditLecture_GUI el = new PermissionEditLecture_GUI(
-								c);
-						el.setVisible(true);
-						dispose();
+						
+						//check which GUI to open
+						try {
+							if(client.userIsLectureAdmin(person.verantwortlicher.getUserID(), Lecture.lecture.getid())){
+								//user is admin of the lecture
+								PermissionEditLecture_GUI ev = new PermissionEditLecture_GUI(c);
+								ev.setVisible(true);
+								dispose();
+								
+							} else {
+								//user is not admin of the lecture
+								EditLectureAllgemein_GUI el = new EditLectureAllgemein_GUI(c);
+								el.setVisible(true);
+								dispose();
+							}
+						} catch (TException e1) {
+							// TODO Auto-generated catch block
+							e1.printStackTrace();
+						}
+						
 					}
 				});
 				btnBack.setActionCommand("OK");
diff --git a/dozentenmodulserver/src/main/java/server/ServerHandler.java b/dozentenmodulserver/src/main/java/server/ServerHandler.java
index 5579e0ca..a0809546 100644
--- a/dozentenmodulserver/src/main/java/server/ServerHandler.java
+++ b/dozentenmodulserver/src/main/java/server/ServerHandler.java
@@ -899,4 +899,30 @@ public class ServerHandler implements Server.Iface
 
 
 
+	@Override
+	public boolean userIsImageAdmin(String userID, String imageID)
+			throws TException {
+		
+		if(authenticated())
+		{
+			return sql.userIsImageAdmin(userID,imageID);
+		}
+		return false;
+		
+	}
+
+
+
+	@Override
+	public boolean userIsLectureAdmin(String userID, String lectureID)
+			throws TException {
+		if(authenticated())
+		{
+			return sql.userIsLectureAdmin(userID,lectureID);
+		}
+		return false;
+	}
+
+
+
 }// end class
diff --git a/dozentenmodulserver/src/main/java/server/generated/Server.java b/dozentenmodulserver/src/main/java/server/generated/Server.java
index b827546e..0b6092ad 100644
--- a/dozentenmodulserver/src/main/java/server/generated/Server.java
+++ b/dozentenmodulserver/src/main/java/server/generated/Server.java
@@ -124,6 +124,10 @@ public class Server {
 
     public String getOsNameForGuestOs(String guestOS) throws org.apache.thrift.TException;
 
+    public boolean userIsImageAdmin(String userID, String imageID) throws org.apache.thrift.TException;
+
+    public boolean userIsLectureAdmin(String userID, String lectureID) throws org.apache.thrift.TException;
+
     public String createRandomUUID() throws org.apache.thrift.TException;
 
   }
@@ -218,6 +222,10 @@ public class Server {
 
     public void getOsNameForGuestOs(String guestOS, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
+    public void userIsImageAdmin(String userID, String imageID, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
+    public void userIsLectureAdmin(String userID, String lectureID, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
     public void createRandomUUID(org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
   }
@@ -1339,6 +1347,54 @@ public class Server {
       throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "getOsNameForGuestOs failed: unknown result");
     }
 
+    public boolean userIsImageAdmin(String userID, String imageID) throws org.apache.thrift.TException
+    {
+      send_userIsImageAdmin(userID, imageID);
+      return recv_userIsImageAdmin();
+    }
+
+    public void send_userIsImageAdmin(String userID, String imageID) throws org.apache.thrift.TException
+    {
+      userIsImageAdmin_args args = new userIsImageAdmin_args();
+      args.setUserID(userID);
+      args.setImageID(imageID);
+      sendBase("userIsImageAdmin", args);
+    }
+
+    public boolean recv_userIsImageAdmin() throws org.apache.thrift.TException
+    {
+      userIsImageAdmin_result result = new userIsImageAdmin_result();
+      receiveBase(result, "userIsImageAdmin");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "userIsImageAdmin failed: unknown result");
+    }
+
+    public boolean userIsLectureAdmin(String userID, String lectureID) throws org.apache.thrift.TException
+    {
+      send_userIsLectureAdmin(userID, lectureID);
+      return recv_userIsLectureAdmin();
+    }
+
+    public void send_userIsLectureAdmin(String userID, String lectureID) throws org.apache.thrift.TException
+    {
+      userIsLectureAdmin_args args = new userIsLectureAdmin_args();
+      args.setUserID(userID);
+      args.setLectureID(lectureID);
+      sendBase("userIsLectureAdmin", args);
+    }
+
+    public boolean recv_userIsLectureAdmin() throws org.apache.thrift.TException
+    {
+      userIsLectureAdmin_result result = new userIsLectureAdmin_result();
+      receiveBase(result, "userIsLectureAdmin");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "userIsLectureAdmin failed: unknown result");
+    }
+
     public String createRandomUUID() throws org.apache.thrift.TException
     {
       send_createRandomUUID();
@@ -3078,6 +3134,76 @@ public class Server {
       }
     }
 
+    public void userIsImageAdmin(String userID, String imageID, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      userIsImageAdmin_call method_call = new userIsImageAdmin_call(userID, imageID, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class userIsImageAdmin_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String userID;
+      private String imageID;
+      public userIsImageAdmin_call(String userID, String imageID, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+        this.userID = userID;
+        this.imageID = imageID;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("userIsImageAdmin", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        userIsImageAdmin_args args = new userIsImageAdmin_args();
+        args.setUserID(userID);
+        args.setImageID(imageID);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public boolean getResult() throws org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_userIsImageAdmin();
+      }
+    }
+
+    public void userIsLectureAdmin(String userID, String lectureID, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      userIsLectureAdmin_call method_call = new userIsLectureAdmin_call(userID, lectureID, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class userIsLectureAdmin_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String userID;
+      private String lectureID;
+      public userIsLectureAdmin_call(String userID, String lectureID, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+        this.userID = userID;
+        this.lectureID = lectureID;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("userIsLectureAdmin", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        userIsLectureAdmin_args args = new userIsLectureAdmin_args();
+        args.setUserID(userID);
+        args.setLectureID(lectureID);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public boolean getResult() throws org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_userIsLectureAdmin();
+      }
+    }
+
     public void createRandomUUID(org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
       checkReady();
       createRandomUUID_call method_call = new createRandomUUID_call(resultHandler, this, ___protocolFactory, ___transport);
@@ -3164,6 +3290,8 @@ public class Server {
       processMap.put("deleteAllAdditionalImagePermissions", new deleteAllAdditionalImagePermissions());
       processMap.put("deleteAllAdditionalLecturePermissions", new deleteAllAdditionalLecturePermissions());
       processMap.put("getOsNameForGuestOs", new getOsNameForGuestOs());
+      processMap.put("userIsImageAdmin", new userIsImageAdmin());
+      processMap.put("userIsLectureAdmin", new userIsLectureAdmin());
       processMap.put("createRandomUUID", new createRandomUUID());
       return processMap;
     }
@@ -4064,6 +4192,48 @@ public class Server {
       }
     }
 
+    public static class userIsImageAdmin<I extends Iface> extends org.apache.thrift.ProcessFunction<I, userIsImageAdmin_args> {
+      public userIsImageAdmin() {
+        super("userIsImageAdmin");
+      }
+
+      public userIsImageAdmin_args getEmptyArgsInstance() {
+        return new userIsImageAdmin_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public userIsImageAdmin_result getResult(I iface, userIsImageAdmin_args args) throws org.apache.thrift.TException {
+        userIsImageAdmin_result result = new userIsImageAdmin_result();
+        result.success = iface.userIsImageAdmin(args.userID, args.imageID);
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
+    public static class userIsLectureAdmin<I extends Iface> extends org.apache.thrift.ProcessFunction<I, userIsLectureAdmin_args> {
+      public userIsLectureAdmin() {
+        super("userIsLectureAdmin");
+      }
+
+      public userIsLectureAdmin_args getEmptyArgsInstance() {
+        return new userIsLectureAdmin_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public userIsLectureAdmin_result getResult(I iface, userIsLectureAdmin_args args) throws org.apache.thrift.TException {
+        userIsLectureAdmin_result result = new userIsLectureAdmin_result();
+        result.success = iface.userIsLectureAdmin(args.userID, args.lectureID);
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
     public static class createRandomUUID<I extends Iface> extends org.apache.thrift.ProcessFunction<I, createRandomUUID_args> {
       public createRandomUUID() {
         super("createRandomUUID");
@@ -4141,6 +4311,8 @@ public class Server {
       processMap.put("deleteAllAdditionalImagePermissions", new deleteAllAdditionalImagePermissions());
       processMap.put("deleteAllAdditionalLecturePermissions", new deleteAllAdditionalLecturePermissions());
       processMap.put("getOsNameForGuestOs", new getOsNameForGuestOs());
+      processMap.put("userIsImageAdmin", new userIsImageAdmin());
+      processMap.put("userIsLectureAdmin", new userIsLectureAdmin());
       processMap.put("createRandomUUID", new createRandomUUID());
       return processMap;
     }
@@ -6401,6 +6573,110 @@ public class Server {
       }
     }
 
+    public static class userIsImageAdmin<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, userIsImageAdmin_args, Boolean> {
+      public userIsImageAdmin() {
+        super("userIsImageAdmin");
+      }
+
+      public userIsImageAdmin_args getEmptyArgsInstance() {
+        return new userIsImageAdmin_args();
+      }
+
+      public AsyncMethodCallback<Boolean> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<Boolean>() { 
+          public void onComplete(Boolean o) {
+            userIsImageAdmin_result result = new userIsImageAdmin_result();
+            result.success = o;
+            result.setSuccessIsSet(true);
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            userIsImageAdmin_result result = new userIsImageAdmin_result();
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, userIsImageAdmin_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.userIsImageAdmin(args.userID, args.imageID,resultHandler);
+      }
+    }
+
+    public static class userIsLectureAdmin<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, userIsLectureAdmin_args, Boolean> {
+      public userIsLectureAdmin() {
+        super("userIsLectureAdmin");
+      }
+
+      public userIsLectureAdmin_args getEmptyArgsInstance() {
+        return new userIsLectureAdmin_args();
+      }
+
+      public AsyncMethodCallback<Boolean> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<Boolean>() { 
+          public void onComplete(Boolean o) {
+            userIsLectureAdmin_result result = new userIsLectureAdmin_result();
+            result.success = o;
+            result.setSuccessIsSet(true);
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            userIsLectureAdmin_result result = new userIsLectureAdmin_result();
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, userIsLectureAdmin_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.userIsLectureAdmin(args.userID, args.lectureID,resultHandler);
+      }
+    }
+
     public static class createRandomUUID<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, createRandomUUID_args, String> {
       public createRandomUUID() {
         super("createRandomUUID");
@@ -47831,6 +48107,1622 @@ public class Server {
 
   }
 
+  public static class userIsImageAdmin_args implements org.apache.thrift.TBase<userIsImageAdmin_args, userIsImageAdmin_args._Fields>, java.io.Serializable, Cloneable, Comparable<userIsImageAdmin_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("userIsImageAdmin_args");
+
+    private static final org.apache.thrift.protocol.TField USER_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("userID", org.apache.thrift.protocol.TType.STRING, (short)1);
+    private static final org.apache.thrift.protocol.TField IMAGE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("imageID", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new userIsImageAdmin_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new userIsImageAdmin_argsTupleSchemeFactory());
+    }
+
+    public String userID; // required
+    public String imageID; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      USER_ID((short)1, "userID"),
+      IMAGE_ID((short)2, "imageID");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 1: // USER_ID
+            return USER_ID;
+          case 2: // IMAGE_ID
+            return IMAGE_ID;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.USER_ID, new org.apache.thrift.meta_data.FieldMetaData("userID", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      tmpMap.put(_Fields.IMAGE_ID, new org.apache.thrift.meta_data.FieldMetaData("imageID", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(userIsImageAdmin_args.class, metaDataMap);
+    }
+
+    public userIsImageAdmin_args() {
+    }
+
+    public userIsImageAdmin_args(
+      String userID,
+      String imageID)
+    {
+      this();
+      this.userID = userID;
+      this.imageID = imageID;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public userIsImageAdmin_args(userIsImageAdmin_args other) {
+      if (other.isSetUserID()) {
+        this.userID = other.userID;
+      }
+      if (other.isSetImageID()) {
+        this.imageID = other.imageID;
+      }
+    }
+
+    public userIsImageAdmin_args deepCopy() {
+      return new userIsImageAdmin_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.userID = null;
+      this.imageID = null;
+    }
+
+    public String getUserID() {
+      return this.userID;
+    }
+
+    public userIsImageAdmin_args setUserID(String userID) {
+      this.userID = userID;
+      return this;
+    }
+
+    public void unsetUserID() {
+      this.userID = null;
+    }
+
+    /** Returns true if field userID is set (has been assigned a value) and false otherwise */
+    public boolean isSetUserID() {
+      return this.userID != null;
+    }
+
+    public void setUserIDIsSet(boolean value) {
+      if (!value) {
+        this.userID = null;
+      }
+    }
+
+    public String getImageID() {
+      return this.imageID;
+    }
+
+    public userIsImageAdmin_args setImageID(String imageID) {
+      this.imageID = imageID;
+      return this;
+    }
+
+    public void unsetImageID() {
+      this.imageID = null;
+    }
+
+    /** Returns true if field imageID is set (has been assigned a value) and false otherwise */
+    public boolean isSetImageID() {
+      return this.imageID != null;
+    }
+
+    public void setImageIDIsSet(boolean value) {
+      if (!value) {
+        this.imageID = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case USER_ID:
+        if (value == null) {
+          unsetUserID();
+        } else {
+          setUserID((String)value);
+        }
+        break;
+
+      case IMAGE_ID:
+        if (value == null) {
+          unsetImageID();
+        } else {
+          setImageID((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case USER_ID:
+        return getUserID();
+
+      case IMAGE_ID:
+        return getImageID();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case USER_ID:
+        return isSetUserID();
+      case IMAGE_ID:
+        return isSetImageID();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof userIsImageAdmin_args)
+        return this.equals((userIsImageAdmin_args)that);
+      return false;
+    }
+
+    public boolean equals(userIsImageAdmin_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_userID = true && this.isSetUserID();
+      boolean that_present_userID = true && that.isSetUserID();
+      if (this_present_userID || that_present_userID) {
+        if (!(this_present_userID && that_present_userID))
+          return false;
+        if (!this.userID.equals(that.userID))
+          return false;
+      }
+
+      boolean this_present_imageID = true && this.isSetImageID();
+      boolean that_present_imageID = true && that.isSetImageID();
+      if (this_present_imageID || that_present_imageID) {
+        if (!(this_present_imageID && that_present_imageID))
+          return false;
+        if (!this.imageID.equals(that.imageID))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(userIsImageAdmin_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetUserID()).compareTo(other.isSetUserID());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetUserID()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.userID, other.userID);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetImageID()).compareTo(other.isSetImageID());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetImageID()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.imageID, other.imageID);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("userIsImageAdmin_args(");
+      boolean first = true;
+
+      sb.append("userID:");
+      if (this.userID == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.userID);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("imageID:");
+      if (this.imageID == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.imageID);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class userIsImageAdmin_argsStandardSchemeFactory implements SchemeFactory {
+      public userIsImageAdmin_argsStandardScheme getScheme() {
+        return new userIsImageAdmin_argsStandardScheme();
+      }
+    }
+
+    private static class userIsImageAdmin_argsStandardScheme extends StandardScheme<userIsImageAdmin_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, userIsImageAdmin_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 1: // USER_ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.userID = iprot.readString();
+                struct.setUserIDIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 2: // IMAGE_ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.imageID = iprot.readString();
+                struct.setImageIDIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, userIsImageAdmin_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.userID != null) {
+          oprot.writeFieldBegin(USER_ID_FIELD_DESC);
+          oprot.writeString(struct.userID);
+          oprot.writeFieldEnd();
+        }
+        if (struct.imageID != null) {
+          oprot.writeFieldBegin(IMAGE_ID_FIELD_DESC);
+          oprot.writeString(struct.imageID);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class userIsImageAdmin_argsTupleSchemeFactory implements SchemeFactory {
+      public userIsImageAdmin_argsTupleScheme getScheme() {
+        return new userIsImageAdmin_argsTupleScheme();
+      }
+    }
+
+    private static class userIsImageAdmin_argsTupleScheme extends TupleScheme<userIsImageAdmin_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, userIsImageAdmin_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetUserID()) {
+          optionals.set(0);
+        }
+        if (struct.isSetImageID()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetUserID()) {
+          oprot.writeString(struct.userID);
+        }
+        if (struct.isSetImageID()) {
+          oprot.writeString(struct.imageID);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, userIsImageAdmin_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.userID = iprot.readString();
+          struct.setUserIDIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.imageID = iprot.readString();
+          struct.setImageIDIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class userIsImageAdmin_result implements org.apache.thrift.TBase<userIsImageAdmin_result, userIsImageAdmin_result._Fields>, java.io.Serializable, Cloneable, Comparable<userIsImageAdmin_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("userIsImageAdmin_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.BOOL, (short)0);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new userIsImageAdmin_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new userIsImageAdmin_resultTupleSchemeFactory());
+    }
+
+    public boolean success; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    private static final int __SUCCESS_ISSET_ID = 0;
+    private byte __isset_bitfield = 0;
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.BOOL)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(userIsImageAdmin_result.class, metaDataMap);
+    }
+
+    public userIsImageAdmin_result() {
+    }
+
+    public userIsImageAdmin_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public userIsImageAdmin_result(userIsImageAdmin_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public userIsImageAdmin_result deepCopy() {
+      return new userIsImageAdmin_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public userIsImageAdmin_result setSuccess(boolean success) {
+      this.success = success;
+      setSuccessIsSet(true);
+      return this;
+    }
+
+    public void unsetSuccess() {
+      __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return EncodingUtils.testBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __SUCCESS_ISSET_ID, value);
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((Boolean)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return Boolean.valueOf(isSuccess());
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof userIsImageAdmin_result)
+        return this.equals((userIsImageAdmin_result)that);
+      return false;
+    }
+
+    public boolean equals(userIsImageAdmin_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true;
+      boolean that_present_success = true;
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (this.success != that.success)
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(userIsImageAdmin_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("userIsImageAdmin_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      sb.append(this.success);
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+        __isset_bitfield = 0;
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class userIsImageAdmin_resultStandardSchemeFactory implements SchemeFactory {
+      public userIsImageAdmin_resultStandardScheme getScheme() {
+        return new userIsImageAdmin_resultStandardScheme();
+      }
+    }
+
+    private static class userIsImageAdmin_resultStandardScheme extends StandardScheme<userIsImageAdmin_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, userIsImageAdmin_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.BOOL) {
+                struct.success = iprot.readBool();
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, userIsImageAdmin_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.isSetSuccess()) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          oprot.writeBool(struct.success);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class userIsImageAdmin_resultTupleSchemeFactory implements SchemeFactory {
+      public userIsImageAdmin_resultTupleScheme getScheme() {
+        return new userIsImageAdmin_resultTupleScheme();
+      }
+    }
+
+    private static class userIsImageAdmin_resultTupleScheme extends TupleScheme<userIsImageAdmin_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, userIsImageAdmin_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetSuccess()) {
+          oprot.writeBool(struct.success);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, userIsImageAdmin_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.success = iprot.readBool();
+          struct.setSuccessIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class userIsLectureAdmin_args implements org.apache.thrift.TBase<userIsLectureAdmin_args, userIsLectureAdmin_args._Fields>, java.io.Serializable, Cloneable, Comparable<userIsLectureAdmin_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("userIsLectureAdmin_args");
+
+    private static final org.apache.thrift.protocol.TField USER_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("userID", org.apache.thrift.protocol.TType.STRING, (short)1);
+    private static final org.apache.thrift.protocol.TField LECTURE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("lectureID", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new userIsLectureAdmin_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new userIsLectureAdmin_argsTupleSchemeFactory());
+    }
+
+    public String userID; // required
+    public String lectureID; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      USER_ID((short)1, "userID"),
+      LECTURE_ID((short)2, "lectureID");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 1: // USER_ID
+            return USER_ID;
+          case 2: // LECTURE_ID
+            return LECTURE_ID;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.USER_ID, new org.apache.thrift.meta_data.FieldMetaData("userID", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      tmpMap.put(_Fields.LECTURE_ID, new org.apache.thrift.meta_data.FieldMetaData("lectureID", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(userIsLectureAdmin_args.class, metaDataMap);
+    }
+
+    public userIsLectureAdmin_args() {
+    }
+
+    public userIsLectureAdmin_args(
+      String userID,
+      String lectureID)
+    {
+      this();
+      this.userID = userID;
+      this.lectureID = lectureID;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public userIsLectureAdmin_args(userIsLectureAdmin_args other) {
+      if (other.isSetUserID()) {
+        this.userID = other.userID;
+      }
+      if (other.isSetLectureID()) {
+        this.lectureID = other.lectureID;
+      }
+    }
+
+    public userIsLectureAdmin_args deepCopy() {
+      return new userIsLectureAdmin_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.userID = null;
+      this.lectureID = null;
+    }
+
+    public String getUserID() {
+      return this.userID;
+    }
+
+    public userIsLectureAdmin_args setUserID(String userID) {
+      this.userID = userID;
+      return this;
+    }
+
+    public void unsetUserID() {
+      this.userID = null;
+    }
+
+    /** Returns true if field userID is set (has been assigned a value) and false otherwise */
+    public boolean isSetUserID() {
+      return this.userID != null;
+    }
+
+    public void setUserIDIsSet(boolean value) {
+      if (!value) {
+        this.userID = null;
+      }
+    }
+
+    public String getLectureID() {
+      return this.lectureID;
+    }
+
+    public userIsLectureAdmin_args setLectureID(String lectureID) {
+      this.lectureID = lectureID;
+      return this;
+    }
+
+    public void unsetLectureID() {
+      this.lectureID = null;
+    }
+
+    /** Returns true if field lectureID is set (has been assigned a value) and false otherwise */
+    public boolean isSetLectureID() {
+      return this.lectureID != null;
+    }
+
+    public void setLectureIDIsSet(boolean value) {
+      if (!value) {
+        this.lectureID = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case USER_ID:
+        if (value == null) {
+          unsetUserID();
+        } else {
+          setUserID((String)value);
+        }
+        break;
+
+      case LECTURE_ID:
+        if (value == null) {
+          unsetLectureID();
+        } else {
+          setLectureID((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case USER_ID:
+        return getUserID();
+
+      case LECTURE_ID:
+        return getLectureID();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case USER_ID:
+        return isSetUserID();
+      case LECTURE_ID:
+        return isSetLectureID();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof userIsLectureAdmin_args)
+        return this.equals((userIsLectureAdmin_args)that);
+      return false;
+    }
+
+    public boolean equals(userIsLectureAdmin_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_userID = true && this.isSetUserID();
+      boolean that_present_userID = true && that.isSetUserID();
+      if (this_present_userID || that_present_userID) {
+        if (!(this_present_userID && that_present_userID))
+          return false;
+        if (!this.userID.equals(that.userID))
+          return false;
+      }
+
+      boolean this_present_lectureID = true && this.isSetLectureID();
+      boolean that_present_lectureID = true && that.isSetLectureID();
+      if (this_present_lectureID || that_present_lectureID) {
+        if (!(this_present_lectureID && that_present_lectureID))
+          return false;
+        if (!this.lectureID.equals(that.lectureID))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(userIsLectureAdmin_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetUserID()).compareTo(other.isSetUserID());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetUserID()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.userID, other.userID);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetLectureID()).compareTo(other.isSetLectureID());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetLectureID()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.lectureID, other.lectureID);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("userIsLectureAdmin_args(");
+      boolean first = true;
+
+      sb.append("userID:");
+      if (this.userID == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.userID);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("lectureID:");
+      if (this.lectureID == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.lectureID);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class userIsLectureAdmin_argsStandardSchemeFactory implements SchemeFactory {
+      public userIsLectureAdmin_argsStandardScheme getScheme() {
+        return new userIsLectureAdmin_argsStandardScheme();
+      }
+    }
+
+    private static class userIsLectureAdmin_argsStandardScheme extends StandardScheme<userIsLectureAdmin_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, userIsLectureAdmin_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 1: // USER_ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.userID = iprot.readString();
+                struct.setUserIDIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 2: // LECTURE_ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.lectureID = iprot.readString();
+                struct.setLectureIDIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, userIsLectureAdmin_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.userID != null) {
+          oprot.writeFieldBegin(USER_ID_FIELD_DESC);
+          oprot.writeString(struct.userID);
+          oprot.writeFieldEnd();
+        }
+        if (struct.lectureID != null) {
+          oprot.writeFieldBegin(LECTURE_ID_FIELD_DESC);
+          oprot.writeString(struct.lectureID);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class userIsLectureAdmin_argsTupleSchemeFactory implements SchemeFactory {
+      public userIsLectureAdmin_argsTupleScheme getScheme() {
+        return new userIsLectureAdmin_argsTupleScheme();
+      }
+    }
+
+    private static class userIsLectureAdmin_argsTupleScheme extends TupleScheme<userIsLectureAdmin_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, userIsLectureAdmin_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetUserID()) {
+          optionals.set(0);
+        }
+        if (struct.isSetLectureID()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetUserID()) {
+          oprot.writeString(struct.userID);
+        }
+        if (struct.isSetLectureID()) {
+          oprot.writeString(struct.lectureID);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, userIsLectureAdmin_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.userID = iprot.readString();
+          struct.setUserIDIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.lectureID = iprot.readString();
+          struct.setLectureIDIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class userIsLectureAdmin_result implements org.apache.thrift.TBase<userIsLectureAdmin_result, userIsLectureAdmin_result._Fields>, java.io.Serializable, Cloneable, Comparable<userIsLectureAdmin_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("userIsLectureAdmin_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.BOOL, (short)0);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new userIsLectureAdmin_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new userIsLectureAdmin_resultTupleSchemeFactory());
+    }
+
+    public boolean success; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    private static final int __SUCCESS_ISSET_ID = 0;
+    private byte __isset_bitfield = 0;
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.BOOL)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(userIsLectureAdmin_result.class, metaDataMap);
+    }
+
+    public userIsLectureAdmin_result() {
+    }
+
+    public userIsLectureAdmin_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public userIsLectureAdmin_result(userIsLectureAdmin_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public userIsLectureAdmin_result deepCopy() {
+      return new userIsLectureAdmin_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public userIsLectureAdmin_result setSuccess(boolean success) {
+      this.success = success;
+      setSuccessIsSet(true);
+      return this;
+    }
+
+    public void unsetSuccess() {
+      __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return EncodingUtils.testBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __SUCCESS_ISSET_ID, value);
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((Boolean)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return Boolean.valueOf(isSuccess());
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof userIsLectureAdmin_result)
+        return this.equals((userIsLectureAdmin_result)that);
+      return false;
+    }
+
+    public boolean equals(userIsLectureAdmin_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true;
+      boolean that_present_success = true;
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (this.success != that.success)
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(userIsLectureAdmin_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("userIsLectureAdmin_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      sb.append(this.success);
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+        __isset_bitfield = 0;
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class userIsLectureAdmin_resultStandardSchemeFactory implements SchemeFactory {
+      public userIsLectureAdmin_resultStandardScheme getScheme() {
+        return new userIsLectureAdmin_resultStandardScheme();
+      }
+    }
+
+    private static class userIsLectureAdmin_resultStandardScheme extends StandardScheme<userIsLectureAdmin_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, userIsLectureAdmin_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.BOOL) {
+                struct.success = iprot.readBool();
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, userIsLectureAdmin_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.isSetSuccess()) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          oprot.writeBool(struct.success);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class userIsLectureAdmin_resultTupleSchemeFactory implements SchemeFactory {
+      public userIsLectureAdmin_resultTupleScheme getScheme() {
+        return new userIsLectureAdmin_resultTupleScheme();
+      }
+    }
+
+    private static class userIsLectureAdmin_resultTupleScheme extends TupleScheme<userIsLectureAdmin_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, userIsLectureAdmin_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetSuccess()) {
+          oprot.writeBool(struct.success);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, userIsLectureAdmin_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.success = iprot.readBool();
+          struct.setSuccessIsSet(true);
+        }
+      }
+    }
+
+  }
+
   public static class createRandomUUID_args implements org.apache.thrift.TBase<createRandomUUID_args, createRandomUUID_args._Fields>, java.io.Serializable, Cloneable, Comparable<createRandomUUID_args>   {
     private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("createRandomUUID_args");
 
diff --git a/dozentenmodulserver/src/main/java/sql/SQL.java b/dozentenmodulserver/src/main/java/sql/SQL.java
index 455b1e6d..2d038732 100644
--- a/dozentenmodulserver/src/main/java/sql/SQL.java
+++ b/dozentenmodulserver/src/main/java/sql/SQL.java
@@ -2217,6 +2217,58 @@ public class SQL {
 	{

 		return UUID.randomUUID().toString();

 	}

+

+

+

+

+	public boolean userIsImageAdmin(String userID, String imageID) {

+		Connection con = getConnection();

+		ResultSet rs = null;

+		String sql = "SELECT image_admin FROM bwLehrpool.pm_VLData_image WHERE userID= ? AND GUID_imageID=?";

+		

+		try 

+		{

+			PreparedStatement prest = con.prepareStatement(sql);

+			prest.setString(1, userID);

+			prest.setString(2, imageID);

+			rs = prest.executeQuery();

+			con.commit();

+			rs.next();

+			

+			return rs.getBoolean("image_admin");

+			

+		} catch (SQLException e) {

+			 

+			e.printStackTrace();

+		}

+		return false;

+	}

+

+

+

+

+	public boolean userIsLectureAdmin(String userID, String lectureID) {

+		Connection con = getConnection();

+		ResultSet rs = null;

+		String sql = "SELECT rec_admin FROM bwLehrpool.pm_VLData_lecture WHERE userID= ? AND lectureID=?";

+		

+		try 

+		{

+			PreparedStatement prest = con.prepareStatement(sql);

+			prest.setString(1, userID);

+			prest.setString(2, lectureID);

+			rs = prest.executeQuery();

+			con.commit();

+			rs.next();

+			

+			return rs.getBoolean("rec_admin");

+			

+		} catch (SQLException e) {

+			 

+			e.printStackTrace();

+		}

+		return false;

+	}

 
 

 
diff --git a/dozentenmodulserver/thrift/server.thrift b/dozentenmodulserver/thrift/server.thrift
index 637e9be6..defa0a2e 100644
--- a/dozentenmodulserver/thrift/server.thrift
+++ b/dozentenmodulserver/thrift/server.thrift
@@ -93,5 +93,7 @@ service Server{
 	void deleteAllAdditionalImagePermissions(1: string imageID, 2:string userID),
 	void deleteAllAdditionalLecturePermissions(1: string lectureID, 2: string userID),
 	string getOsNameForGuestOs(1: string guestOS),
+	bool userIsImageAdmin(1: string userID, 2: string imageID),
+	bool userIsLectureAdmin(1: string userID, 2: string lectureID),
 	string createRandomUUID()
 }