CheckExist

25 files changed, 921 insertions, 0 deletions

diff --git a/Dozentenmodul/bin/gui/image/DeleteImage_GUI.class b/Dozentenmodul/bin/gui/image/DeleteImage_GUI.class
index a15ca0fe..18b00f77 100644
--- a/Dozentenmodul/bin/gui/image/DeleteImage_GUI.class
+++ b/Dozentenmodul/bin/gui/image/DeleteImage_GUI.class
diff --git a/Dozentenmodul/bin/gui/image/SearchEditImage_GUI.class b/Dozentenmodul/bin/gui/image/SearchEditImage_GUI.class
index 0a129b98..8051fcb8 100644
--- a/Dozentenmodul/bin/gui/image/SearchEditImage_GUI.class
+++ b/Dozentenmodul/bin/gui/image/SearchEditImage_GUI.class
diff --git a/Dozentenmodul/bin/gui/image/SearchImage_GUI.class b/Dozentenmodul/bin/gui/image/SearchImage_GUI.class
index d59c5e1b..8173d4ba 100644
--- a/Dozentenmodul/bin/gui/image/SearchImage_GUI.class
+++ b/Dozentenmodul/bin/gui/image/SearchImage_GUI.class
diff --git a/Dozentenmodul/bin/gui/intro/Login_GUI.class b/Dozentenmodul/bin/gui/intro/Login_GUI.class
index 5f91f8a2..883df8b1 100644
--- a/Dozentenmodul/bin/gui/intro/Login_GUI.class
+++ b/Dozentenmodul/bin/gui/intro/Login_GUI.class
diff --git a/Dozentenmodul/src/gui/intro/Login_GUI.java b/Dozentenmodul/src/gui/intro/Login_GUI.java
index f93d700d..316f7b7c 100644
--- a/Dozentenmodul/src/gui/intro/Login_GUI.java
+++ b/Dozentenmodul/src/gui/intro/Login_GUI.java
@@ -295,6 +295,12 @@ public class Login_GUI extends JFrame {
 					person.verantwortlicher.setVorname(user.firstName);
 					person.verantwortlicher.setEMail(user.eMail);
 					person.verantwortlicher.setHochschule(hochschule);
+					
+					//Rechte anlegen bzw. checken ob user existiert wenn nicht anlegen
+					if(SessionData.session.getRole().equals("Student")){
+						boolean ret=bwClient.checkUser(person.verantwortlicher.getUsername());
+						System.out.println("User exist: "+ret);
+					}
 
 					try {
 						// Lege config File an und entscheide welches Fenster
diff --git a/Dozentenmodul/src/models/LectureRights.java b/Dozentenmodul/src/models/LectureRights.java
new file mode 100644
index 00000000..c136141f
--- /dev/null
+++ b/Dozentenmodul/src/models/LectureRights.java
@@ -0,0 +1,37 @@
+package models;
+
+public class LectureRights {
+	private int recRead;
+	private int recWrite;
+	private int recChangePermission;
+	private int recAdmin;
+	
+	public static LectureRights rights =new LectureRights();
+	
+	public int getRecRead() {
+		return recRead;
+	}
+	public void setRecRead(int recRead) {
+		this.recRead = recRead;
+	}
+	public int getRecWrite() {
+		return recWrite;
+	}
+	public void setRecWrite(int recWrite) {
+		this.recWrite = recWrite;
+	}
+	public int getRecChangePermission() {
+		return recChangePermission;
+	}
+	public void setRecChangePermission(int recChangePermission) {
+		this.recChangePermission = recChangePermission;
+	}
+	public int getRecAdmin() {
+		return recAdmin;
+	}
+	public void setRecAdmin(int recAdmin) {
+		this.recAdmin = recAdmin;
+	}
+	
+	
+}
diff --git a/Dozentenmodulserver/bin/server/Server$getLectureData_args$getLectureData_argsTupleScheme.class b/Dozentenmodulserver/bin/server/Server$getLectureData_args$getLectureData_argsTupleScheme.class
index 60544e6a..f53bda5c 100644
--- a/Dozentenmodulserver/bin/server/Server$getLectureData_args$getLectureData_argsTupleScheme.class
+++ b/Dozentenmodulserver/bin/server/Server$getLectureData_args$getLectureData_argsTupleScheme.class
diff --git a/Dozentenmodulserver/bin/server/Server$getLectureData_result$_Fields.class b/Dozentenmodulserver/bin/server/Server$getLectureData_result$_Fields.class
index 0f177c60..b7a97cbe 100644
--- a/Dozentenmodulserver/bin/server/Server$getLectureData_result$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$getLectureData_result$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$getPersonData_args$_Fields.class b/Dozentenmodulserver/bin/server/Server$getPersonData_args$_Fields.class
index dde9b3e7..1bfa2f37 100644
--- a/Dozentenmodulserver/bin/server/Server$getPersonData_args$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$getPersonData_args$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$getPersonData_result$_Fields.class b/Dozentenmodulserver/bin/server/Server$getPersonData_result$_Fields.class
index 82f49d2e..c7072aa6 100644
--- a/Dozentenmodulserver/bin/server/Server$getPersonData_result$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$getPersonData_result$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$startFileCopy_args$startFileCopy_argsTupleSchemeFactory.class b/Dozentenmodulserver/bin/server/Server$startFileCopy_args$startFileCopy_argsTupleSchemeFactory.class
index a0412d98..86ec4c25 100644
--- a/Dozentenmodulserver/bin/server/Server$startFileCopy_args$startFileCopy_argsTupleSchemeFactory.class
+++ b/Dozentenmodulserver/bin/server/Server$startFileCopy_args$startFileCopy_argsTupleSchemeFactory.class
diff --git a/Dozentenmodulserver/bin/server/Server$startFileCopy_args.class b/Dozentenmodulserver/bin/server/Server$startFileCopy_args.class
index 3a31e4b6..111b548e 100644
--- a/Dozentenmodulserver/bin/server/Server$startFileCopy_args.class
+++ b/Dozentenmodulserver/bin/server/Server$startFileCopy_args.class
diff --git a/Dozentenmodulserver/bin/server/Server$startFileCopy_result$_Fields.class b/Dozentenmodulserver/bin/server/Server$startFileCopy_result$_Fields.class
index 99e6378f..0c1c5adf 100644
--- a/Dozentenmodulserver/bin/server/Server$startFileCopy_result$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$startFileCopy_result$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$updateImageData_args.class b/Dozentenmodulserver/bin/server/Server$updateImageData_args.class
index 916c3f40..8b2b685f 100644
--- a/Dozentenmodulserver/bin/server/Server$updateImageData_args.class
+++ b/Dozentenmodulserver/bin/server/Server$updateImageData_args.class
diff --git a/Dozentenmodulserver/bin/server/Server$updateImageData_result$_Fields.class b/Dozentenmodulserver/bin/server/Server$updateImageData_result$_Fields.class
index 05bc2843..d72cc254 100644
--- a/Dozentenmodulserver/bin/server/Server$updateImageData_result$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$updateImageData_result$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$updateImageData_result.class b/Dozentenmodulserver/bin/server/Server$updateImageData_result.class
index dbc041c3..67fe7810 100644
--- a/Dozentenmodulserver/bin/server/Server$updateImageData_result.class
+++ b/Dozentenmodulserver/bin/server/Server$updateImageData_result.class
diff --git a/Dozentenmodulserver/bin/server/Server$writeLecturedata_args$writeLecturedata_argsTupleSchemeFactory.class b/Dozentenmodulserver/bin/server/Server$writeLecturedata_args$writeLecturedata_argsTupleSchemeFactory.class
index 4278abfb..13103810 100644
--- a/Dozentenmodulserver/bin/server/Server$writeLecturedata_args$writeLecturedata_argsTupleSchemeFactory.class
+++ b/Dozentenmodulserver/bin/server/Server$writeLecturedata_args$writeLecturedata_argsTupleSchemeFactory.class
diff --git a/Dozentenmodulserver/bin/server/Server$writeLecturedata_args.class b/Dozentenmodulserver/bin/server/Server$writeLecturedata_args.class
index df8469a4..dc2cd8d4 100644
--- a/Dozentenmodulserver/bin/server/Server$writeLecturedata_args.class
+++ b/Dozentenmodulserver/bin/server/Server$writeLecturedata_args.class
diff --git a/Dozentenmodulserver/bin/server/Server$writeLecturedata_result$_Fields.class b/Dozentenmodulserver/bin/server/Server$writeLecturedata_result$_Fields.class
index 55cbb3c0..4d671e3f 100644
--- a/Dozentenmodulserver/bin/server/Server$writeLecturedata_result$_Fields.class
+++ b/Dozentenmodulserver/bin/server/Server$writeLecturedata_result$_Fields.class
diff --git a/Dozentenmodulserver/bin/server/Server$writeVLdata_args.class b/Dozentenmodulserver/bin/server/Server$writeVLdata_args.class
index 714b534b..908aa944 100644
--- a/Dozentenmodulserver/bin/server/Server$writeVLdata_args.class
+++ b/Dozentenmodulserver/bin/server/Server$writeVLdata_args.class
diff --git a/Dozentenmodulserver/bin/sql/SQL.class b/Dozentenmodulserver/bin/sql/SQL.class
index 3d436d78..899f8594 100644
--- a/Dozentenmodulserver/bin/sql/SQL.class
+++ b/Dozentenmodulserver/bin/sql/SQL.class
diff --git a/Dozentenmodulserver/src/server/Server.java b/Dozentenmodulserver/src/server/Server.java
index d61101e8..a9f8a753 100644
--- a/Dozentenmodulserver/src/server/Server.java
+++ b/Dozentenmodulserver/src/server/Server.java
@@ -74,6 +74,8 @@ public class Server {
 
     public boolean deleteLecture(String id, String hs, String user) throws org.apache.thrift.TException;
 
+    public boolean checkUser(String username) throws org.apache.thrift.TException;
+
   }
 
   public interface AsyncIface {
@@ -116,6 +118,8 @@ public class Server {
 
     public void deleteLecture(String id, String hs, String user, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
+    public void checkUser(String username, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
   }
 
   public static class Client extends org.apache.thrift.TServiceClient implements Iface {
@@ -637,6 +641,29 @@ public class Server {
       throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "deleteLecture failed: unknown result");
     }
 
+    public boolean checkUser(String username) throws org.apache.thrift.TException
+    {
+      send_checkUser(username);
+      return recv_checkUser();
+    }
+
+    public void send_checkUser(String username) throws org.apache.thrift.TException
+    {
+      checkUser_args args = new checkUser_args();
+      args.setUsername(username);
+      sendBase("checkUser", args);
+    }
+
+    public boolean recv_checkUser() throws org.apache.thrift.TException
+    {
+      checkUser_result result = new checkUser_result();
+      receiveBase(result, "checkUser");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "checkUser failed: unknown result");
+    }
+
   }
   public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
     public static class Factory implements org.apache.thrift.async.TAsyncClientFactory<AsyncClient> {
@@ -1449,6 +1476,38 @@ public class Server {
       }
     }
 
+    public void checkUser(String username, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      checkUser_call method_call = new checkUser_call(username, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class checkUser_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String username;
+      public checkUser_call(String username, 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.username = username;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("checkUser", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        checkUser_args args = new checkUser_args();
+        args.setUsername(username);
+        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_checkUser();
+      }
+    }
+
   }
 
   public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
@@ -1481,6 +1540,7 @@ public class Server {
       processMap.put("deleteImageServer", new deleteImageServer());
       processMap.put("connectedToLecture", new connectedToLecture());
       processMap.put("deleteLecture", new deleteLecture());
+      processMap.put("checkUser", new checkUser());
       return processMap;
     }
 
@@ -1874,6 +1934,27 @@ public class Server {
       }
     }
 
+    public static class checkUser<I extends Iface> extends org.apache.thrift.ProcessFunction<I, checkUser_args> {
+      public checkUser() {
+        super("checkUser");
+      }
+
+      public checkUser_args getEmptyArgsInstance() {
+        return new checkUser_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public checkUser_result getResult(I iface, checkUser_args args) throws org.apache.thrift.TException {
+        checkUser_result result = new checkUser_result();
+        result.success = iface.checkUser(args.username);
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
   }
 
   public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
@@ -1906,6 +1987,7 @@ public class Server {
       processMap.put("deleteImageServer", new deleteImageServer());
       processMap.put("connectedToLecture", new connectedToLecture());
       processMap.put("deleteLecture", new deleteLecture());
+      processMap.put("checkUser", new checkUser());
       return processMap;
     }
 
@@ -2888,6 +2970,58 @@ public class Server {
       }
     }
 
+    public static class checkUser<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, checkUser_args, Boolean> {
+      public checkUser() {
+        super("checkUser");
+      }
+
+      public checkUser_args getEmptyArgsInstance() {
+        return new checkUser_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) {
+            checkUser_result result = new checkUser_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;
+            checkUser_result result = new checkUser_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, checkUser_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.checkUser(args.username,resultHandler);
+      }
+    }
+
   }
 
   public static class getFtpUser_args implements org.apache.thrift.TBase<getFtpUser_args, getFtpUser_args._Fields>, java.io.Serializable, Cloneable, Comparable<getFtpUser_args>   {
@@ -22789,4 +22923,712 @@ public class Server {
 
   }
 
+  public static class checkUser_args implements org.apache.thrift.TBase<checkUser_args, checkUser_args._Fields>, java.io.Serializable, Cloneable, Comparable<checkUser_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("checkUser_args");
+
+    private static final org.apache.thrift.protocol.TField USERNAME_FIELD_DESC = new org.apache.thrift.protocol.TField("username", org.apache.thrift.protocol.TType.STRING, (short)-1);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new checkUser_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new checkUser_argsTupleSchemeFactory());
+    }
+
+    public String username; // 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 {
+      USERNAME((short)-1, "username");
+
+      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: // USERNAME
+            return USERNAME;
+          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.USERNAME, new org.apache.thrift.meta_data.FieldMetaData("username", 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(checkUser_args.class, metaDataMap);
+    }
+
+    public checkUser_args() {
+    }
+
+    public checkUser_args(
+      String username)
+    {
+      this();
+      this.username = username;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public checkUser_args(checkUser_args other) {
+      if (other.isSetUsername()) {
+        this.username = other.username;
+      }
+    }
+
+    public checkUser_args deepCopy() {
+      return new checkUser_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.username = null;
+    }
+
+    public String getUsername() {
+      return this.username;
+    }
+
+    public checkUser_args setUsername(String username) {
+      this.username = username;
+      return this;
+    }
+
+    public void unsetUsername() {
+      this.username = null;
+    }
+
+    /** Returns true if field username is set (has been assigned a value) and false otherwise */
+    public boolean isSetUsername() {
+      return this.username != null;
+    }
+
+    public void setUsernameIsSet(boolean value) {
+      if (!value) {
+        this.username = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case USERNAME:
+        if (value == null) {
+          unsetUsername();
+        } else {
+          setUsername((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case USERNAME:
+        return getUsername();
+
+      }
+      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 USERNAME:
+        return isSetUsername();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof checkUser_args)
+        return this.equals((checkUser_args)that);
+      return false;
+    }
+
+    public boolean equals(checkUser_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_username = true && this.isSetUsername();
+      boolean that_present_username = true && that.isSetUsername();
+      if (this_present_username || that_present_username) {
+        if (!(this_present_username && that_present_username))
+          return false;
+        if (!this.username.equals(that.username))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(checkUser_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetUsername()).compareTo(other.isSetUsername());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetUsername()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.username, other.username);
+        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("checkUser_args(");
+      boolean first = true;
+
+      sb.append("username:");
+      if (this.username == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.username);
+      }
+      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 checkUser_argsStandardSchemeFactory implements SchemeFactory {
+      public checkUser_argsStandardScheme getScheme() {
+        return new checkUser_argsStandardScheme();
+      }
+    }
+
+    private static class checkUser_argsStandardScheme extends StandardScheme<checkUser_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, checkUser_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: // USERNAME
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.username = iprot.readString();
+                struct.setUsernameIsSet(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, checkUser_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.username != null) {
+          oprot.writeFieldBegin(USERNAME_FIELD_DESC);
+          oprot.writeString(struct.username);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class checkUser_argsTupleSchemeFactory implements SchemeFactory {
+      public checkUser_argsTupleScheme getScheme() {
+        return new checkUser_argsTupleScheme();
+      }
+    }
+
+    private static class checkUser_argsTupleScheme extends TupleScheme<checkUser_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, checkUser_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetUsername()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetUsername()) {
+          oprot.writeString(struct.username);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, checkUser_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.username = iprot.readString();
+          struct.setUsernameIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class checkUser_result implements org.apache.thrift.TBase<checkUser_result, checkUser_result._Fields>, java.io.Serializable, Cloneable, Comparable<checkUser_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("checkUser_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 checkUser_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new checkUser_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(checkUser_result.class, metaDataMap);
+    }
+
+    public checkUser_result() {
+    }
+
+    public checkUser_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public checkUser_result(checkUser_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public checkUser_result deepCopy() {
+      return new checkUser_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public checkUser_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 checkUser_result)
+        return this.equals((checkUser_result)that);
+      return false;
+    }
+
+    public boolean equals(checkUser_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(checkUser_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("checkUser_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 checkUser_resultStandardSchemeFactory implements SchemeFactory {
+      public checkUser_resultStandardScheme getScheme() {
+        return new checkUser_resultStandardScheme();
+      }
+    }
+
+    private static class checkUser_resultStandardScheme extends StandardScheme<checkUser_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, checkUser_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, checkUser_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 checkUser_resultTupleSchemeFactory implements SchemeFactory {
+      public checkUser_resultTupleScheme getScheme() {
+        return new checkUser_resultTupleScheme();
+      }
+    }
+
+    private static class checkUser_resultTupleScheme extends TupleScheme<checkUser_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, checkUser_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, checkUser_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);
+        }
+      }
+    }
+
+  }
+
 }
diff --git a/Dozentenmodulserver/src/server/ServerHandler.java b/Dozentenmodulserver/src/server/ServerHandler.java
index 12985219..be8d430d 100644
--- a/Dozentenmodulserver/src/server/ServerHandler.java
+++ b/Dozentenmodulserver/src/server/ServerHandler.java
@@ -423,6 +423,8 @@ public class ServerHandler implements Server.Iface {
 	}
 	
 	
+	
+	
 	  public static int nthIndexOf(final String string, final String token,
 			     final int index)
 			  {
@@ -436,4 +438,10 @@ public class ServerHandler implements Server.Iface {
 
 			     return j;
 			  }
+
+	@Override
+	public boolean checkUser(String username) throws TException {
+		return sql.checkUser(username);
+		
+	}
 }
diff --git a/Dozentenmodulserver/src/sql/SQL.java b/Dozentenmodulserver/src/sql/SQL.java
index a60cef59..3ba59923 100644
--- a/Dozentenmodulserver/src/sql/SQL.java
+++ b/Dozentenmodulserver/src/sql/SQL.java
@@ -867,4 +867,31 @@ public class SQL {
 		}

 		return null;

 	}

+	

+	public boolean checkUser(String username) {

+		Statement stm;

+		boolean ret=false;

+		try {

+			Connection con=getConnection();

+			stm = con.createStatement();

+			ResultSet rs=stm.executeQuery("Select * from m_user where loginName like '"+username+"'");

+			if(rs.next())

+			{

+				ret=true;

+				log.info(new Date() + " - User " + rs.getString("loginName") + " exist.");

+			}

+			else{

+				ret=false;

+				log.info(new Date() + " - User " + rs.getString("loginName") + " not exist.");

+			}

+			con.close();

+			

+			

+		} catch (SQLException e) {

+			// TODO Auto-generated catch block

+			

+			e.printStackTrace();

+		}

+		return ret;

+	}

 }

diff --git a/Dozentenmodulserver/thrift/server.thrift b/Dozentenmodulserver/thrift/server.thrift
index dfd2b2d1..0665c978 100644
--- a/Dozentenmodulserver/thrift/server.thrift
+++ b/Dozentenmodulserver/thrift/server.thrift
@@ -54,4 +54,5 @@ service Server{
 	bool deleteImageServer(string id, string version),
 	bool connectedToLecture(string id, string version),
 	bool deleteLecture(string id, string hs, string user),
+	bool checkUser(string username),
 }
\ No newline at end of file