LUT-30818 : Addition of a listener interface for user deletion

Author: Jeremy Deloche

src/java/fr/paris/lutece/portal/service/user/IUserAdminRemovalListener.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2002-2025, City of Paris
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice
+ *     and the following disclaimer.
+ *
+ *  2. Redistributions in binary form must reproduce the above copyright notice
+ *     and the following disclaimer in the documentation and/or other materials
+ *     provided with the distribution.
+ *
+ *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
+ *     contributors may be used to endorse or promote products derived from
+ *     this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * License 1.0
+ */
+package fr.paris.lutece.portal.service.user;
+
+public interface IUserAdminRemovalListener {
+
+    /**
+     * Notify the listener for a user deletion
+     *
+     * @param nIdUser
+     *            the id of deleted user.
+     * @throws UserAdminErrorException
+     */
+    void notify( int nIdUser ) throws UserAdminErrorException;
+
+}

src/java/fr/paris/lutece/portal/service/user/UserAdminErrorException.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2002-2025, City of Paris
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice
+ *     and the following disclaimer.
+ *
+ *  2. Redistributions in binary form must reproduce the above copyright notice
+ *     and the following disclaimer in the documentation and/or other materials
+ *     provided with the distribution.
+ *
+ *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
+ *     contributors may be used to endorse or promote products derived from
+ *     this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * License 1.0
+ */
+package fr.paris.lutece.portal.service.user;
+
+public class UserAdminErrorException extends RuntimeException
+{
+
+    private static final long serialVersionUID = -1497353239794053049L;
+
+    private final String _strI18nErrorMessage;
+    private final Object[] _messageArgs;
+
+    /**
+     * Constructor
+     *
+     * @param strI18nErrorMessage
+     *            the I18n key error message
+     */
+    public UserAdminErrorException(String strI18nErrorMessage, Object[] messageArgs)
+    {
+        _strI18nErrorMessage = strI18nErrorMessage;
+        _messageArgs = messageArgs;
+    }
+
+    /**
+     * @return the _strI18nErrorMessage
+     */
+    public String getI18nErrorMessage( )
+    {
+        return _strI18nErrorMessage;
+    }
+
+    /**
+     * @return message args
+     */
+    public Object[] getMessageArgs( )
+    {
+        return _messageArgs;
+    }
+
+}

src/java/fr/paris/lutece/portal/web/user/AdminUserJspBean.java

@@ -48,6 +48,8 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import fr.paris.lutece.portal.service.user.IUserAdminRemovalListener;
+import fr.paris.lutece.portal.service.user.UserAdminErrorException;
 import org.apache.commons.fileupload.FileItem;
 import org.apache.commons.lang3.StringUtils;
 
@@ -1469,6 +1471,15 @@ public String doRemoveAdminUser( HttpServletRequest request ) throws AccessDenie
             throw new AccessDeniedException( ERROR_INVALID_TOKEN );
         }
 
+        try
+        {
+            checkRemoveListener(nUserId);
+        }
+        catch (UserAdminErrorException e)
+        {
+            return AdminMessageService.getMessageUrl( request, e.getI18nErrorMessage(), e.getMessageArgs() ,AdminMessage.TYPE_ERROR );
+        }
+
         AdminUser currentUser = AdminUserService.getAdminUser( request );
 
         if ( !isUserAuthorizedToModifyUser( currentUser, user ) )
@@ -2763,4 +2774,21 @@ private boolean isUserLevelModified( AdminUser user, String strSelectedUserLevel
         }
         return false;
     }
+
+    /**
+     * Notifies all registered listeners about the attempt to remove a user.
+     *
+     * @param nUserId the ID of the user
+     * @throws UserAdminErrorException if an error occurs during listener notification
+     */
+    private void checkRemoveListener( int nUserId ) throws UserAdminErrorException
+    {
+        // Notify registered listener
+        List<IUserAdminRemovalListener> listRemovalListener = SpringContextService.getBeansOfType( IUserAdminRemovalListener.class );
+        for ( IUserAdminRemovalListener removalLister : listRemovalListener )
+        {
+            removalLister.notify( nUserId );
+        }
+    }
+
 }