postaction.java

个人认为是最好的Java论坛源码

/*
 * Copyright (c) 2003, Rafael Steil
 * 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, this list of conditions and the 
 * following  disclaimer.
 * 2)  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.
 * 3) Neither the name of "Rafael Steil" 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
 * 
 * This file creation date: May 3, 2003 / 5:05:18 PM
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum.view.forum;

import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.jforum.Command;
import net.jforum.JForum;
import net.jforum.SessionFacade;
import net.jforum.entities.Attachment;
import net.jforum.entities.Post;
import net.jforum.entities.QuotaLimit;
import net.jforum.entities.Topic;
import net.jforum.entities.User;
import net.jforum.entities.UserSession;
import net.jforum.exceptions.AttachmentException;
import net.jforum.model.AttachmentModel;
import net.jforum.model.DataAccessDriver;
import net.jforum.model.ForumModel;
import net.jforum.model.PostModel;
import net.jforum.model.TopicModel;
import net.jforum.model.UserModel;
import net.jforum.repository.ForumRepository;
import net.jforum.repository.PostRepository;
import net.jforum.repository.RankingRepository;
import net.jforum.repository.SecurityRepository;
import net.jforum.repository.SmiliesRepository;
import net.jforum.repository.TopicRepository;
import net.jforum.security.PermissionControl;
import net.jforum.security.SecurityConstants;
import net.jforum.util.I18n;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;
import net.jforum.view.forum.common.AttachmentCommon;
import net.jforum.view.forum.common.ForumCommon;
import net.jforum.view.forum.common.PostCommon;
import net.jforum.view.forum.common.TopicsCommon;
import net.jforum.view.forum.common.ViewCommon;

import org.apache.log4j.Logger;

/**
 * @author Rafael Steil
 * @version $Id: PostAction.java,v 1.68 2005/03/04 14:14:48 rafaelsteil Exp $
 */
public class PostAction extends Command {
	private static final Logger logger = Logger.getLogger(PostAction.class);

	public void list() throws Exception {
		PostModel pm = DataAccessDriver.getInstance().newPostModel();
		UserModel um = DataAccessDriver.getInstance().newUserModel();
		TopicModel tm = DataAccessDriver.getInstance().newTopicModel();

		int userId = SessionFacade.getUserSession().getUserId();
		int anonymousUser = SystemGlobals.getIntValue(ConfigKeys.ANONYMOUS_USER_ID);

		int topicId = this.request.getIntParameter("topic_id");
		Topic topic = tm.selectById(topicId);

		// The topic exists?
		if (topic.getId() == 0) {
			this.topicNotFound();
			return;
		}

		// Shall we proceed?
		if (!TopicsCommon.isTopicAccessible(topic.getForumId())) {
			return;
		}

		int count = SystemGlobals.getIntValue(ConfigKeys.POST_PER_PAGE);
		int start = ViewCommon.getStartPage();

		PermissionControl pc = SecurityRepository.get(userId);

		boolean canEdit = false;
		if (pc.canAccess(SecurityConstants.PERM_MODERATION_POST_EDIT)) {
			canEdit = true;
		}

		Map usersMap = new HashMap();
		List helperList = PostCommon.topicPosts(pm, um, usersMap, canEdit, userId, topic.getId(), start, count);
		
		// Ugly assumption:
		// Is moderation pending for the topic?
		if (topic.isModerated() && helperList.size() == 0) {
			this.notModeratedYet();
			return;
		}

		boolean isModerator = (pc.canAccess(SecurityConstants.PERM_MODERATION))
				&& (pc.canAccess(SecurityConstants.PERM_MODERATION_FORUMS, Integer.toString(topic.getForumId())));

		// Set the topic status as read
		tm.updateReadStatus(topic.getId(), userId, true);
		
		tm.incrementTotalViews(topic.getId());

		if (userId != anonymousUser) {
			((HashMap) SessionFacade.getAttribute(ConfigKeys.TOPICS_TRACKING)).put(new Integer(topic.getId()),
					new Long(topic.getLastPostTimeInMillis().getTime()));
		}
		
		this.context.put("attachmentsEnabled", SecurityRepository.canAccess(
				SecurityConstants.PERM_ATTACHMENTS_ENABLED, Integer.toString(topic.getForumId())));
		this.context.put("canDownloadAttachments", SecurityRepository.canAccess(
				SecurityConstants.PERM_ATTACHMENTS_DOWNLOAD));
		this.context.put("am", new AttachmentCommon(this.request));
		this.context.put("karmaVotes", DataAccessDriver.getInstance().newKarmaModel().getUserVotes(topic.getId(), userId));
		this.context.put("rssEnabled", SystemGlobals.getBoolValue(ConfigKeys.RSS_ENABLED));
		this.context.put("canRemove",
				SecurityRepository.canAccess(SecurityConstants.PERM_MODERATION_POST_REMOVE));
		this.context.put("canEdit", canEdit);
		this.context.put("moduleAction", "post_show.htm");
		this.context.put("allCategories", ForumCommon.getAllCategoriesAndForums(false));
		this.context.put("topic", topic);
		this.context.put("rank", new RankingRepository());
		this.context.put("posts", helperList);
		this.context.put("karmaEnabled", SecurityRepository.canAccess(SecurityConstants.PERM_KARMA_ENABLED));
		this.context.put("forum", ForumRepository.getForum(topic.getForumId()));
		this.context.put("users", usersMap);
		this.context.put("topicId", new Integer(topicId));
		this.context.put("anonymousPosts", SecurityRepository.canAccess(SecurityConstants.PERM_ANONYMOUS_POST, 
				Integer.toString(topic.getForumId())));
		this.context.put("watching", tm.isUserSubscribed(topicId, SessionFacade.getUserSession().getUserId()));
		this.context.put("pageTitle", SystemGlobals.getValue(ConfigKeys.FORUM_NAME) + " - " + topic.getTitle());
		this.context.put("isAdmin", SecurityRepository.canAccess(SecurityConstants.PERM_ADMINISTRATION));
		this.context.put("readonly", !SecurityRepository.canAccess(SecurityConstants.PERM_READ_ONLY_FORUMS, 
				Integer.toString(topic.getForumId())));
		this.context.put("replyOnly", !SecurityRepository.canAccess(SecurityConstants.PERM_REPLY_ONLY, 
				Integer.toString(topic.getForumId())));

		this.context.put("isModerator", SecurityRepository.canAccess(SecurityConstants.PERM_MODERATION)
						&& SecurityRepository.canAccess(SecurityConstants.PERM_MODERATION_FORUMS, 
								Integer.toString(topic.getForumId())));

		// Topic Status
		this.context.put("STATUS_LOCKED", new Integer(Topic.STATUS_LOCKED));
		this.context.put("STATUS_UNLOCKED", new Integer(Topic.STATUS_UNLOCKED));

		// Pagination
		int totalPosts = tm.getTotalPosts(topic.getId());
		this.context.put("totalPages", new Double(Math.ceil((double) totalPosts / (double) count)));
		this.context.put("recordsPerPage", new Integer(count));
		this.context.put("totalRecords", new Integer(totalPosts));
		this.context.put("thisPage", new Double(Math.ceil((double) (start + 1) / (double) count)));
		this.context.put("start", new Integer(start));
	}

	public void review() throws Exception {
		PostModel pm = DataAccessDriver.getInstance().newPostModel();
		UserModel um = DataAccessDriver.getInstance().newUserModel();
		TopicModel tm = DataAccessDriver.getInstance().newTopicModel();

		int userId = SessionFacade.getUserSession().getUserId();
		int topicId = this.request.getIntParameter("topic_id");
		Topic topic = tm.selectById(topicId);

		if (!TopicsCommon.isTopicAccessible(topic.getForumId())) {
			return;
		}

		int count = SystemGlobals.getIntValue(ConfigKeys.POST_PER_PAGE);
		int start = ViewCommon.getStartPage();

		Map usersMap = new HashMap();
		List helperList = PostCommon.topicPosts(pm, um, usersMap, false, userId, topic.getId(), start, count);
		Collections.reverse(helperList);

		this.setTemplateName(SystemGlobals.getValue(ConfigKeys.TEMPLATE_NAME) + "/empty.htm");

		this.context.put("moduleAction", "topic_review.htm");
		this.context.put("posts", helperList);
		this.context.put("users", usersMap);
	}

	private void topicNotFound() {
		this.context.put("moduleAction", "message.htm");
		this.context.put("message", I18n.getMessage("PostShow.TopicNotFound"));
	}

	private void postNotFound() {
		this.context.put("moduleAction", "message.htm");
		this.context.put("message", I18n.getMessage("PostShow.PostNotFound"));
	}
	
	private void replyOnly()
	{
		this.context.put("moduleAction", "message.htm");
		this.context.put("message", I18n.getMessage("PostShow.replyOnly"));
	}
	
	private boolean isReplyOnly(int forumId) throws Exception
	{
		return !SecurityRepository.canAccess(SecurityConstants.PERM_REPLY_ONLY, 
				Integer.toString(forumId));
	}

	public void insert() throws Exception {
		int forumId = this.request.getIntParameter("forum_id");

		if (!this.anonymousPost(forumId)
				|| this.isForumReadonly(forumId, this.request.getParameter("topic_id") != null)) {
			return;
		}

		ForumModel fm = DataAccessDriver.getInstance().newForumModel();

		if (this.request.getParameter("topic_id") != null) {
			int topicId = this.request.getIntParameter("topic_id");
			Topic t = DataAccessDriver.getInstance().newTopicModel().selectById(topicId);

			if (t.getStatus() == Topic.STATUS_LOCKED) {
				this.topicLocked();
				return;
			}

			this.context.put("topic", t);
			this.context.put("setType", false);
		}
		else {
			if (this.isReplyOnly(forumId)) {
				this.replyOnly();
				return;
			}
			this.context.put("setType", true);
		}
		
		int userId = SessionFacade.getUserSession().getUserId();

		this.context.put("attachmentsEnabled", SecurityRepository.canAccess(
				SecurityConstants.PERM_ATTACHMENTS_ENABLED, Integer.toString(forumId)));
		
		QuotaLimit ql = new AttachmentCommon(this.request).getQuotaLimit(userId);
		this.context.put("maxAttachmentsSize", new Long(ql != null ? ql.getSizeInBytes() : 1));
		
		this.context.put("maxAttachments", SystemGlobals.getValue(ConfigKeys.ATTACHMENTS_MAX_POST));
		this.context.put("forum", ForumRepository.getForum(forumId));
		this.context.put("action", "insertSave");
		this.context.put("moduleAction", "post_form.htm");
		this.context.put("start", this.request.getParameter("start"));
		this.context.put("isNewPost", true);
		this.context.put("htmlAllowed",
				SecurityRepository.canAccess(SecurityConstants.PERM_HTML_DISABLED, Integer.toString(forumId)));
		this.context.put("canCreateStickyOrAnnouncementTopics",
				SecurityRepository.canAccess(SecurityConstants.PERM_CREATE_STICKY_ANNOUNCEMENT_TOPICS));

		User user = DataAccessDriver.getInstance().newUserModel().selectById(userId);
		user.setSignature(PostCommon.processText(user.getSignature()));
		user.setSignature(PostCommon.processSmilies(user.getSignature(), SmiliesRepository.getSmilies()));

		if (this.request.getParameter("preview") != null) {
			user.setNotifyOnMessagesEnabled(this.request.getParameter("notify") != null);
		}

		this.context.put("user", user);
	}