/*
* Copyright (c) 2003-2011, Simon Brown
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of Pebble 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 OWNER 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.
*/
package net.sourceforge.pebble.web.action;
import net.sourceforge.pebble.Constants;
import net.sourceforge.pebble.domain.*;
import net.sourceforge.pebble.util.SecurityUtils;
import net.sourceforge.pebble.util.StringUtils;
import net.sourceforge.pebble.web.security.RequireSecurityToken;
import net.sourceforge.pebble.web.validation.ValidationContext;
import net.sourceforge.pebble.web.view.RedirectView;
import net.sourceforge.pebble.web.view.View;
import net.sourceforge.pebble.web.view.impl.BlogEntryFormView;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.HeadMethod;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
/**
* Saves a blog entry.
*
* @author Simon Brown
*/
@RequireSecurityToken
public class SaveBlogEntryAction extends SecureAction {
/** the log used by this class */
private static Log log = LogFactory.getLog(SaveBlogEntryAction.class);
/** the value used if the blog entry is being previewed rather than added */
private static final String PREVIEW = "Preview";
/**
* Peforms the processing associated with this action.
*
* @param request the HttpServletRequest instance
* @param response the HttpServletResponse instance
* @return the name of the next view
*/
public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {
String submitType = request.getParameter("submit");
if (submitType != null && submitType.equalsIgnoreCase(PREVIEW)) {
return previewBlogEntry(request);
} else {
return saveBlogEntry(request);
}
}
private View previewBlogEntry(HttpServletRequest request) throws ServletException {
BlogEntry blogEntry = getBlogEntry(request);
populateBlogEntry(blogEntry, request);
ValidationContext validationContext = new ValidationContext();
blogEntry.validate(validationContext);
getModel().put("validationContext", validationContext);
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
return new BlogEntryFormView();
}
private View saveBlogEntry(HttpServletRequest request) throws ServletException {
BlogEntry blogEntry = getBlogEntry(request);
Blog blog = blogEntry.getBlog();
populateBlogEntry(blogEntry, request);
ValidationContext context = new ValidationContext();
blogEntry.validate(context);
getModel().put("validationContext", context);
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
if (context.hasErrors()) {
return new BlogEntryFormView();
} else {
BlogService service = new BlogService();
try {
service.putBlogEntry(blogEntry);
blog.info("Blog entry <a href=\"" + blogEntry.getLocalPermalink() + "\">" + blogEntry.getTitle() + "</a> saved.");
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
return new RedirectView(blogEntry.getLocalPermalink());
} catch (BlogServiceException be) {
log.error(be.getMessage(), be);
context.addError(be.getMessage());
be.printStackTrace();
return new BlogEntryFormView();
}
}
}
private BlogEntry getBlogEntry(HttpServletRequest request) throws ServletException {
Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
String id = request.getParameter("entry");
String persistent = request.getParameter("persistent");
if (persistent != null && persistent.equalsIgnoreCase("true")) {
BlogService service = new BlogService();
try {
return service.getBlogEntry(blog, id);
} catch (BlogServiceException e) {
throw new ServletException(e);
}
} else {
BlogEntry blogEntry = new BlogEntry(blog);
blogEntry.setAuthor(SecurityUtils.getUsername());
return blogEntry;
}
}
private void populateBlogEntry(BlogEntry blogEntry, HttpServletRequest request) {
Blog blog = (Blog)request.getAttribute(Constants.BLOG_KEY);
String title = StringUtils.stripScriptTags(request.getParameter("title"));
String subtitle = StringUtils.stripScriptTags(request.getParameter("subtitle"));
String body = StringUtils.filterNewlines(request.getParameter("body"));
String excerpt = StringUtils.filterNewlines(request.getParameter("excerpt"));
String originalPermalink = request.getParameter("originalPermalink");
String tags = request.getParameter("tags");
String commentsEnabled = request.getParameter("commentsEnabled");
String trackBacksEnabled = request.getParameter("trackBacksEnabled");
String category[] = request.getParameterValues("category");
String timeZone = request.getParameter("timeZone");
// the date can only set on those entries that have not yet been persisted
if (!blogEntry.isPersistent()) {
DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT, blog.getLocale());
dateFormat.setTimeZone(blog.getTimeZone());
dateFormat.setLenient(false);
Date now = new Date();
String dateAsString = request.getParameter("date");
if (dateAsString != null && dateAsString.length() > 0) {
try {
Date date = dateFormat.parse(dateAsString);
if (date.after(now)) {
date = now;
}
blogEntry.setDate(date);
} catch (ParseException pe) {
log.warn(pe);
blogEntry.setDate(now);
}
} else {
// the date has been blanked out, so reset to "now"
blogEntry.setDate(now);
}
}
blogEntry.setTimeZoneId(timeZone);
blogEntry.setTitle(title);
blogEntry.setSubtitle(subtitle);
blogEntry.setBody(body);
blogEntry.setExcerpt(excerpt);
Set categories = new HashSet();
if (category != null) {
for (int i = 0; i < category.length; i++) {
categories.add(blog.getCategory(category[i]));
}
}
blogEntry.setCategories(categories);
blogEntry.setTags(tags);
blogEntry.setOriginalPermalink(originalPermalink);
if (commentsEnabled != null && commentsEnabled.equalsIgnoreCase("true")) {
blogEntry.setCommentsEnabled(true);
} else {
blogEntry.setCommentsEnabled(false);
}
if (trackBacksEnabled != null && trackBacksEnabled.equalsIgnoreCase("true")) {
blogEntry.setTrackBacksEnabled(true);
} else {
blogEntry.setTrackBacksEnabled(false);
}
String attachmentUrl = request.getParameter("attachmentUrl");
String attachmentSize = request.getParameter("attachmentSize");
String attachmentType = request.getParameter("attachmentType");
if (attachmentUrl != null && attachmentUrl.length() > 0) {
Attachment attachment = populateAttachment(blogEntry, attachmentUrl, attachmentSize, attachmentType);
blogEntry.setAttachment(attachment);
} else {
blogEntry.setAttachment(null);
}
}
private Attachment populateAttachment(BlogEntry blogEntry, String attachmentUrl, String attachmentSize, String attachmentType) {
if (attachmentSize == null || attachmentSize.length() == 0) {
String absoluteAttachmentUrl = attachmentUrl;
try {
HttpClient httpClient = new HttpClient();
if (absoluteAttachmentUrl.startsWith("./")) {
absoluteAttachmentUrl = blogEntry.getBlog().getUrl() + absoluteAttachmentUrl.substring(2);
}
HeadMethod headMethod = new HeadMethod(absoluteAttachmentUrl);
int status = httpClient.executeMethod(headMethod);
if (status == 200) {
Header attachmentSizeHeader = headMethod.getResponseHeader("Content-Length");
if (attachmentSizeHeader != null) {
attachmentSize = attachmentSizeHeader.getValue();
}
Header attachmentTypeHeader = headMethod.getResponseHeader("Content-Type");
if (attachmentTypeHeader != null) {
attachmentType = attachmentTypeHeader.getValue();
}
}
} catch (IOException e) {
log.warn("Could not get details for attachment located at " + absoluteAttachmentUrl + " : " + e.getMessage());
}
}
Attachment attachment = new Attachment();
attachment.setUrl(attachmentUrl);
if (attachmentSize != null && attachmentSize.length() > 0) {
attachment.setSize(Long.parseLong(attachmentSize));
}
attachment.setType(attachmentType);
return attachment;
}
/**
* Gets a list of all roles that are allowed to access this action.
*
* @return an array of Strings representing role names
* @param request
*/
public String[] getRoles(HttpServletRequest request) {
return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
}
}