FileDetailsAction.java example

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/**
 * Copyright (c) 2009--2015 Red Hat, Inc.
 *
 * This software is licensed to you under the GNU General Public License,
 * version 2 (GPLv2). There is NO WARRANTY for this software, express or
 * implied, including the implied warranties of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
 * along with this software; if not, see
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * Red Hat trademarks are not licensed under GPLv2. No permission is
 * granted to use or replicate Red Hat trademarks that are incorporated
 * in this software or its documentation.
 */
package com.redhat.rhn.frontend.action.configuration.files;

import com.redhat.rhn.common.conf.ConfigDefaults;
import com.redhat.rhn.common.util.StringUtil;
import com.redhat.rhn.common.validator.ValidatorException;
import com.redhat.rhn.domain.config.ConfigFile;
import com.redhat.rhn.domain.config.ConfigRevision;
import com.redhat.rhn.domain.user.User;
import com.redhat.rhn.frontend.action.configuration.ConfigActionHelper;
import com.redhat.rhn.frontend.action.configuration.ConfigFileForm;
import com.redhat.rhn.frontend.struts.RequestContext;
import com.redhat.rhn.frontend.struts.RhnAction;
import com.redhat.rhn.frontend.struts.RhnHelper;
import com.redhat.rhn.frontend.struts.RhnValidationHelper;
import com.redhat.rhn.manager.configuration.ConfigFileBuilder;
import com.redhat.rhn.manager.configuration.ConfigurationManager;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * FileDetailsAction
 * @version $Rev$
 */
public class FileDetailsAction extends RhnAction {

    // REQUEST elements
    public static final String REV_SIZE          = "revbytes";
    public static final String REV_TOTAL_SIZE    = "totalbytes";
    public static final String REV_CREATED       = "created";
    public static final String REV_MODIFIED      = "modified";
    public static final String MAX_SIZE          = "maxbytes";
    public static final String MAX_EDIT_SIZE     = "maxEditBytes";
    public static final String LAST_USER         = "lastUser";
    public static final String LAST_USER_ID      = "lastUserId";
    public static final String TOOLARGE          = "toolarge";
    public static final String CSRF_TOKEN        = "csrfToken";


    public static final String VALIDATION_XSD =
        "/com/redhat/rhn/frontend/action/configuration/validation/configFileForm.xsd";

    /** {@inheritDoc} */
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) {

        RequestContext context = new RequestContext(request);
        ConfigFileForm cff = (ConfigFileForm)form;

        ConfigRevision cr = ConfigActionHelper.findRevision(request);
        cff.set(ConfigFileForm.REV_FILETYPE,
                        cr.getConfigFileType().getLabel());
        cff.set(ConfigFileForm.REV_PATH, cr.getConfigFile().getConfigFileName().getPath());
        Map params = makeParamMap(request);

        if (isSubmitted(cff)) {
            ConfigFileBuilder builder = ConfigFileBuilder.getInstance();
            try {
                cr = builder.update(cff.toRevisedData(cr),
                        context.getCurrentUser(), cr.getConfigFile());
                params.put("crid", cr.getId().toString());
                return getStrutsDelegate().forwardParams(mapping.findForward("success"),
                        params);
            }
            catch (ValidatorException ve) {
                getStrutsDelegate().saveMessages(request, ve.getResult());
                RhnValidationHelper.setFailedValidation(request);
                cff.updateFromRevision(request, cr);
                setupRequestParams(context, cr);
                return getStrutsDelegate().forwardParams(
                        mapping.findForward("error"), params);
            }
        }
        cff.updateFromRevision(request, cr);
        setupRequestParams(context, cr);
        request.setAttribute("form", cff);
        request.setAttribute("documentation", ConfigDefaults.get().isDocAvailable());
        request.setAttribute(ManageRevisionSetup.MAX_SIZE, StringUtil
                .displayFileSize(ConfigFile.getMaxFileSize()));

        return getStrutsDelegate().forwardParams(
                mapping.findForward(RhnHelper.DEFAULT_FORWARD), params);
    }

    protected void setupRequestParams(RequestContext ctx, ConfigRevision cr) {

        HttpServletRequest request = ctx.getRequest();
        ConfigActionHelper.setupRequestAttributes(ctx, cr.getConfigFile(), cr);

        int totalBytes = 0;

        if (!cr.isDirectory()) {
            totalBytes = ConfigurationManager.getInstance().
            getFileStorage(ctx.getCurrentUser(), cr.getConfigFile());
        }

        request.setAttribute(CSRF_TOKEN,
            request.getSession().getAttribute("csrf_token"));

        request.setAttribute(MAX_SIZE,
                 StringUtil.displayFileSize(ConfigFile.getMaxFileSize()));
        request.setAttribute(MAX_EDIT_SIZE,
                StringUtil.displayFileSize(ConfigFileForm.MAX_EDITABLE_SIZE));
        if (cr.isFile()) {
            request.setAttribute(REV_TOTAL_SIZE, StringUtil.displayFileSize(totalBytes));
            request.setAttribute(REV_SIZE,
                    StringUtil.displayFileSize(
                            cr.getConfigContent().getFileSize().longValue()));
        }
        request.setAttribute(REV_CREATED,
                StringUtil.categorizeTime(cr.getConfigFile().getCreated().getTime(),
                        StringUtil.WEEKS_UNITS));

        if (cr.getConfigContent() == null) {
            request.setAttribute(REV_MODIFIED,
                    StringUtil.categorizeTime(cr.getModified().getTime(),
                                            StringUtil.WEEKS_UNITS));
        }
        else {
            request.setAttribute(REV_MODIFIED,
                    StringUtil.categorizeTime(cr.getConfigContent().getModified().getTime(),
                                            StringUtil.WEEKS_UNITS));
        }


        User lastUser = cr.getChangedBy();
        if (lastUser != null) {
            request.setAttribute(LAST_USER, lastUser.getLogin());
            request.setAttribute(LAST_USER_ID, lastUser.getId());
        }
    }
}