SelectionGroupRemovalLink.java

/* (c) 2014 - 2016 Open Source Geospatial Foundation - all rights reserved
 * (c) 2001 - 2013 OpenPlans
 * This code is licensed under the GPL 2.0 license, available at the root
 * application directory.
 */
package org.geoserver.security.web.group;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.StringResourceModel;
import org.geoserver.security.GeoServerRoleStore;
import org.geoserver.security.GeoServerUserGroupService;
import org.geoserver.security.GeoServerUserGroupStore;
import org.geoserver.security.impl.GeoServerRole;
import org.geoserver.security.impl.GeoServerUserGroup;
import org.geoserver.security.validation.RoleStoreValidationWrapper;
import org.geoserver.security.validation.UserGroupStoreValidationWrapper;
import org.geoserver.web.GeoServerApplication;
import org.geoserver.web.wicket.GeoServerDialog;
import org.geoserver.web.wicket.GeoServerTablePanel;
import org.geoserver.web.wicket.ParamResourceModel;

public class SelectionGroupRemovalLink extends AjaxLink<Object> {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    GeoServerTablePanel<GeoServerUserGroup> groups;

    GeoServerDialog dialog;
    boolean disassociateRoles =false;
    ConfirmRemovalGroupPanel removePanel;
    GeoServerDialog.DialogDelegate delegate;
    String userGroupsServiceName;

    public SelectionGroupRemovalLink(String userGroupServiceName,String id, GeoServerTablePanel<GeoServerUserGroup> groups,
            GeoServerDialog dialog,boolean disassociateRoles) {
        super(id);
        this.groups = groups;
        this.dialog = dialog;
        this.disassociateRoles=disassociateRoles;
        this.userGroupsServiceName=userGroupServiceName;
    }

    @Override
    public void onClick(AjaxRequestTarget target) {
        final List<GeoServerUserGroup> selection = groups.getSelection();
        if (selection.size() == 0)
            return;

        dialog.setTitle(new ParamResourceModel("confirmRemoval", this));

        // if there is something to cancel, let's warn the user about what
        // could go wrong, and if the user accepts, let's delete what's needed
        dialog.showOkCancel(target, delegate =new GeoServerDialog.DialogDelegate() {
            protected Component getContents(String id) {
                // show a confirmation panel for all the objects we have to remove
                Model<Boolean> model = new Model<Boolean>(SelectionGroupRemovalLink.this.disassociateRoles); 
                return removePanel=new ConfirmRemovalGroupPanel(id,model,  selection) {
                    @Override
                    protected IModel<String> canRemove(GeoServerUserGroup group) {
                        return SelectionGroupRemovalLink.this.canRemove(group);
                    }
                };
            }

            protected boolean onSubmit(AjaxRequestTarget target, Component contents) {

                GeoServerUserGroupStore ugStore=null;
                try {
                    GeoServerUserGroupService ugService =
                            GeoServerApplication.get().getSecurityManager()
                            .loadUserGroupService(userGroupsServiceName);
                    ugStore = new UserGroupStoreValidationWrapper(ugService.createStore());
                    for (GeoServerUserGroup group : removePanel.getRoots()) {                     
                         ugStore.removeGroup(group);
                    }
                    ugStore.store();
                } catch (IOException ex) {
                    try {ugStore.load(); } catch (IOException ex2) {};
                    throw new RuntimeException(ex);
                }
                
                GeoServerRoleStore gaStore = null;
                if (disassociateRoles) {
                    try {
                        gaStore =
                                GeoServerApplication.get().getSecurityManager().getActiveRoleService().createStore();
                        gaStore = new RoleStoreValidationWrapper(gaStore);
                        for (GeoServerUserGroup group : removePanel.getRoots()) {                                              
                                 List<GeoServerRole> list= new ArrayList<GeoServerRole>();
                                 list.addAll(gaStore.getRolesForGroup(group.getGroupname()));
                                 for (GeoServerRole role: list)
                                     gaStore.disAssociateRoleFromGroup(role, group.getGroupname());
                        }
                        gaStore.store();
                    } catch (IOException ex) {
                        try {gaStore.load(); } catch (IOException ex2) {};
                        throw new RuntimeException(ex);
                    }
                }

                
                // the deletion will have changed what we see in the page
                // so better clear out the selection
                groups.clearSelection();
                return true;
            }

            @Override
            public void onClose(AjaxRequestTarget target) {
                // if the selection has been cleared out it's sign a deletion
                // occurred, so refresh the table
                if (groups.getSelection().size() == 0) {
                    setEnabled(false);
                    target.add(SelectionGroupRemovalLink.this);
                    target.add(groups);
                }
            }

        });

    }

    protected StringResourceModel canRemove(GeoServerUserGroup group) {
        return null;
    }

}