diff --git a/mozen/src/main/java/mozen/business/IUserManager.java b/mozen/src/main/java/mozen/business/IUserManager.java
index 68ab58890de09cf65af15355368eb6a44135d6a7..d2dc292334f5f136fe0a85e29efdc6cf18005fc7 100644
--- a/mozen/src/main/java/mozen/business/IUserManager.java
+++ b/mozen/src/main/java/mozen/business/IUserManager.java
@@ -15,7 +15,4 @@ public interface IUserManager {
   User getUserByUsername(String username);
 
   void setAdmin(Long id, User user) throws Exception;
-
-  boolean resetPassword(String email);
-  boolean changePassword(String token, String password);
 }
\ No newline at end of file
diff --git a/mozen/src/main/java/mozen/business/LayerManager.java b/mozen/src/main/java/mozen/business/LayerManager.java
index a5017073b9d1fc2f19be6c7e10462fa5081bd8b6..9d6461fe57b6713b0b2f23ccdec15e29b1a2ed13 100644
--- a/mozen/src/main/java/mozen/business/LayerManager.java
+++ b/mozen/src/main/java/mozen/business/LayerManager.java
@@ -1,8 +1,5 @@
 package mozen.business;
 
-import java.util.zip.CRC32;
-import java.util.zip.Checksum;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
@@ -36,14 +33,12 @@ public class LayerManager implements ILayerManager{
       throw new Exception("Unknown model");
     if (!UserHelper.isAuthor(model.getAuthor(), user))
       throw new Exception("Not the author");
-
-    Checksum crc32 = new CRC32();
-    crc32.update(file.getBytes(), 0, file.getBytes().length);
     
     CustomLayer layer = new CustomLayer();
     layer.setName(name);
     layer.setChecksum(Md5Utils.getMD5(file));
     layer.setFile(file.getBytes());
+    layer.setFileName(file.getOriginalFilename());
     layer.setFileType(file.getContentType());
     layer.setModel(model);
 
diff --git a/mozen/src/main/java/mozen/business/ModelManager.java b/mozen/src/main/java/mozen/business/ModelManager.java
index 349ad188bc724ef42ded9e03622fe75bacf8d636..cdb7f5fa8d5d4010aa620b5913cb27cf9d02deb8 100644
--- a/mozen/src/main/java/mozen/business/ModelManager.java
+++ b/mozen/src/main/java/mozen/business/ModelManager.java
@@ -86,6 +86,7 @@ public class ModelManager implements IModelManager {
 
     model.setChecksum(Md5Utils.getMD5(file));
     model.setFile(file.getBytes());
+    model.setFileName(file.getOriginalFilename());
     model.setFileType(file.getContentType());
 
     modelRepo.save(model);
diff --git a/mozen/src/main/java/mozen/business/UserManager.java b/mozen/src/main/java/mozen/business/UserManager.java
index c579f22f623ec15f83fd88ddfa0525e1d275358e..38eb22e4f36528a4e42972e6bad10c3049c181a2 100644
--- a/mozen/src/main/java/mozen/business/UserManager.java
+++ b/mozen/src/main/java/mozen/business/UserManager.java
@@ -54,18 +54,6 @@ public class UserManager implements IUserManager {
     else return null;
   }
 
-  @Override
-  public boolean resetPassword(String email) {
-    // TODO Auto-generated method stub
-    return false;
-  }
-
-  @Override
-  public boolean changePassword(String token, String password) {
-    // TODO Auto-generated method stub
-    return false;
-  }
-
   @Override
   public User getUserByUsername(String username) {
     return repo.findByUsername(username);
diff --git a/mozen/src/main/java/mozen/model/CustomLayer.java b/mozen/src/main/java/mozen/model/CustomLayer.java
index d6b35ce6fd3b794171ee2114fb9677e463e91290..721c54970f098bddcf7f757bc37d20a69e56dc24 100644
--- a/mozen/src/main/java/mozen/model/CustomLayer.java
+++ b/mozen/src/main/java/mozen/model/CustomLayer.java
@@ -33,6 +33,10 @@ public class CustomLayer implements Serializable{
 	@Column(columnDefinition="BLOB")
   private byte[] file;
 
+  @Basic
+	@Column
+  private String fileName;
+
   @Basic
 	@Column
   private String fileType;
@@ -48,10 +52,11 @@ public class CustomLayer implements Serializable{
   public CustomLayer() {
   }
 
-  public CustomLayer(Long id, String name, byte[] file, String fileType, String checksum, Model model) {
+  public CustomLayer(Long id, String name, byte[] file, String fileName, String fileType, String checksum, Model model) {
     this.id = id;
     this.name = name;
     this.file = file;
+    this.fileName = fileName;
     this.fileType = fileType;
     this.checksum = checksum;
     this.model = model;
@@ -108,4 +113,13 @@ public class CustomLayer implements Serializable{
     this.checksum = checksum;
   }
 
+  public String getFileName() {
+    return this.fileName;
+  }
+
+  public void setFileName(String fileName) {
+    this.fileName = fileName;
+  }
+
+
 }
\ No newline at end of file
diff --git a/mozen/src/main/java/mozen/model/Model.java b/mozen/src/main/java/mozen/model/Model.java
index 8ba18c82d10765501a1cf4dc63c4eb490dfc6e1f..077b0ba0759008e10a790945a34571bea401f405 100644
--- a/mozen/src/main/java/mozen/model/Model.java
+++ b/mozen/src/main/java/mozen/model/Model.java
@@ -88,6 +88,10 @@ public class Model implements Serializable{
 	@Column
   private String fileType;
 
+  @Basic
+	@Column
+  private String fileName;
+
   @Basic
 	@Column
   private String checksum;
@@ -117,7 +121,7 @@ public class Model implements Serializable{
   public Model() {
   }
 
-  public Model(Long id, String name, String shortDescription, String longDescription, Date added, Date lastModified, int votes, double performance, String performanceUnit, double performanceIndex, int parameterCount, byte[] file, String fileType, String checksum, boolean isVerified, User author, Set<Tag> tags, Set<CustomLayer> customLayers, Set<Comment> comments) {
+  public Model(Long id, String name, String shortDescription, String longDescription, Date added, Date lastModified, int votes, double performance, String performanceUnit, double performanceIndex, int parameterCount, byte[] file, String fileType, String fileName, String checksum, boolean isVerified, User author, Set<Tag> tags, Set<CustomLayer> customLayers, Set<Comment> comments) {
     this.id = id;
     this.name = name;
     this.shortDescription = shortDescription;
@@ -131,6 +135,7 @@ public class Model implements Serializable{
     this.parameterCount = parameterCount;
     this.file = file;
     this.fileType = fileType;
+    this.fileName = fileName;
     this.checksum = checksum;
     this.isVerified = isVerified;
     this.author = author;
@@ -298,4 +303,13 @@ public class Model implements Serializable{
     this.isVerified = isVerified;
   }
 
+  public String getFileName() {
+    return this.fileName;
+  }
+
+  public void setFileName(String fileName) {
+    this.fileName = fileName;
+  }
+
+
 }
\ No newline at end of file
diff --git a/mozen/src/main/java/mozen/web/CustomLayerController.java b/mozen/src/main/java/mozen/web/CustomLayerController.java
index 85678a6a7cf26e9a7ee7a459d1d9b35e7f147b46..ce3e2dfeebd792fe51d5a6cbc88238e1d655017c 100644
--- a/mozen/src/main/java/mozen/web/CustomLayerController.java
+++ b/mozen/src/main/java/mozen/web/CustomLayerController.java
@@ -5,9 +5,6 @@ import org.springframework.core.io.ByteArrayResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
-import org.springframework.security.authentication.AnonymousAuthenticationToken;
-import org.springframework.security.core.Authentication;
-import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -19,6 +16,7 @@ import mozen.business.IUserManager;
 import mozen.model.CustomLayer;
 import mozen.messages.ResponseMessage;
 import mozen.model.User;
+import mozen.utils.UserHelper;
 
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -46,9 +44,8 @@ public class CustomLayerController {
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
+      return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @PostMapping("/upload")
@@ -57,33 +54,21 @@ public class CustomLayerController {
     @RequestParam(value = "id", required = true) Long id,
     @RequestParam(value = "name", required = true) String name) {
     ResponseMessage response = new ResponseMessage(false, "");
-    User user = getCurrentUser();
+    User user = UserHelper.getCurrentUser(userManager);
     if(user == null) {
       response.setError(true);
       response.setMessage("User unknown");
-      return ResponseEntity.ok(response);
+      return ResponseEntity.badRequest().body(response);
     }
   
     try {
       System.err.println("[MODEL CONTROLLER] layer file upload f:"+file.getName()+" n:"+name);
       layerManager.addLayerFile(file, id, name, user);
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
-    }
-
-    return ResponseEntity.ok(response);
-  }
-
-  private User getCurrentUser() {
-    Authentication auth = SecurityContextHolder.getContext().getAuthentication();
-
-    if (!(auth instanceof AnonymousAuthenticationToken)) {
-      if (auth.getPrincipal() instanceof org.springframework.security.core.userdetails.User) return null;
-      String username = (String) auth.getPrincipal();
-      return userManager.getUserByUsername(username);
-    } else {
-      return null;
+      return ResponseEntity.badRequest().body(response);
     }
   }
 }
\ No newline at end of file
diff --git a/mozen/src/main/java/mozen/web/ModelController.java b/mozen/src/main/java/mozen/web/ModelController.java
index 0933527188064bc9d69cfde7b95d10caa140dde8..11d6b47bafbbbf602a02396667b2cce4596c52e8 100644
--- a/mozen/src/main/java/mozen/web/ModelController.java
+++ b/mozen/src/main/java/mozen/web/ModelController.java
@@ -63,13 +63,12 @@ public class ModelController {
     try {
       long modelId = modelManager.addModel(message, user).getId();
       response.setMessage(Long.toString(modelId));
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
       return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @PutMapping("")
@@ -84,13 +83,12 @@ public class ModelController {
 
     try {
       modelManager.updateModel(message, id, user);
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
       return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @DeleteMapping("")
@@ -105,13 +103,12 @@ public class ModelController {
 
     try {
       modelManager.removeModel(id, user);
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
       return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @GetMapping("/setVerified")
@@ -126,13 +123,12 @@ public class ModelController {
 
     try {
       modelManager.setVerified(id, user);
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
       return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @GetMapping("/list")
@@ -153,13 +149,12 @@ public class ModelController {
     try {
       System.err.println("[MODEL CONTROLLER] model file upload n:"+file.getName()+" id:"+id);
       modelManager.addModelFile(file, id, user);
+      return ResponseEntity.ok(response);
     } catch (Exception e) {
       response.setError(true);
       response.setMessage(e.getMessage());
       return ResponseEntity.badRequest().body(response);
     }
-
-    return ResponseEntity.ok(response);
   }
 
   @GetMapping("/download")
diff --git a/mozen/src/main/resources/application.properties b/mozen/src/main/resources/application.properties
index 8904fb7a6e3894b9a500295f6dc4695c0968b145..eb021a5f4350993619f1dd704a728cd33b308fc1 100644
--- a/mozen/src/main/resources/application.properties
+++ b/mozen/src/main/resources/application.properties
@@ -15,12 +15,7 @@ spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
 #spring.datasource.driver-class-name=com.mysql.jdbc.Driver
 #spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
 
-spring.jackson.serialization.fail-on-empty-beans=false
+spring.servlet.multipart.max-file-size=10GB
+spring.servlet.multipart.max-request-size=10GB
 
-spring.mail.host=ssl0.ovh.net
-spring.mail.port=587
-spring.mail.username=boobook@gltronic.ovh
-spring.mail.password=123456789
-spring.mail.properties.mail.smtp.auth=true
-spring.mail.properties.mail.smtp.starttls.enable=true
-spring.mail.test-connection=false
\ No newline at end of file
+spring.jackson.serialization.fail-on-empty-beans=false
\ No newline at end of file