Package com.liusoft.dlog4j.action

Source Code of com.liusoft.dlog4j.action.PhotoAction

/*
*  PhotoAction.java
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU Library General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program; if not, write to the Free Software
*  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*  Author: Winter Lau (javayou@gmail.com)
*  http://dlog4j.sourceforge.net
*/
package com.liusoft.dlog4j.action;

import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.ArrayList;
import java.util.StringTokenizer;

import javax.imageio.ImageIO;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.upload.FormFile;
import org.htmlparser.Node;
import org.htmlparser.Parser;

import com.liusoft.dlog4j.DLOGSecurityManager;
import com.liusoft.dlog4j.Globals;
import com.liusoft.dlog4j.HtmlNodeFilters;
import com.liusoft.dlog4j.HttpContext;
import com.liusoft.dlog4j.MailTransportQueue;
import com.liusoft.dlog4j.SessionUserObject;
import com.liusoft.dlog4j.base._PhotoBase;
import com.liusoft.dlog4j.beans.AlbumBean;
import com.liusoft.dlog4j.beans.PhotoBean;
import com.liusoft.dlog4j.beans.PhotoOutlineBean;
import com.liusoft.dlog4j.beans.SiteBean;
import com.liusoft.dlog4j.beans.UserBean;
import com.liusoft.dlog4j.dao.AlbumDAO;
import com.liusoft.dlog4j.dao.PhotoDAO;
import com.liusoft.dlog4j.formbean.PhotoForm;
import com.liusoft.dlog4j.photo.FileSystemSaver;
import com.liusoft.dlog4j.photo.Photo;
import com.liusoft.dlog4j.photo.PhotoSaver;
import com.liusoft.dlog4j.search.SearchProxy;
import com.liusoft.dlog4j.util.DLOG4JUtils;
import com.liusoft.dlog4j.util.MailSender;
import com.liusoft.dlog4j.util.RequestUtils;
import com.liusoft.dlog4j.util.StringUtils;

/**
* ��ƬAction(ֻ��վ�����ܶ������в���)
* @author Winter Lau
*/
public class PhotoAction extends AdminActionBase {

  private final static Log log = LogFactory.getLog(PhotoAction.class);
  private final static String TMP_PHOTO_SHARE = "/WEB-INF/conf/photo_share.html";
  private final static String photo_saver_class = "photo_saver_class";
  private final static String ERROR_KEY = "upload";

  private final static int MAX_MAIL_COUNT = 10;

  /**
   * ͼƬ������ת90��
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @param s_photo_id
   * @return
   * @throws Exception
   */
  protected ActionForward doRotateLeft(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response, String s_photo_id) throws Exception  
  {
    int photo_id = Integer.parseInt(s_photo_id);
    _PhotoBase pbean = PhotoDAO.getPhotoOutlineByID(photo_id);
    if(pbean != null){
      HttpContext http_ctx = getHttpContext(mapping, form, request, response);
      rotate(http_ctx, pbean.getImageURL(), 8);
    }
    return null;
  }

  /**
   * ͼƬ������ת90��
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @param s_photo_id
   * @return
   * @throws Exception
   */
  protected ActionForward doRotateRight(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response, String s_photo_id) throws Exception  
  {
    int photo_id = Integer.parseInt(s_photo_id);
    _PhotoBase pbean = PhotoDAO.getPhotoOutlineByID(photo_id);
    if(pbean != null){
      HttpContext http_ctx = getHttpContext(mapping, form, request, response);
      rotate(http_ctx, pbean.getImageURL(), 6);
    }
    return null;
  }
 
  /**
   * ��Ƭ��ת
   * @param ctx
   * @param imgURL
   * @param orient
   * @return
   * @throws IOException
   */
  protected boolean rotate(HttpContext ctx, String imgURL, int orient) throws IOException{
    PhotoSaver saver = this.getPhotoSaver();
    InputStream inImg = saver.read(ctx, imgURL);
    BufferedImage old_img = (BufferedImage)ImageIO.read(inImg)
    int width = old_img.getWidth();
    int height = old_img.getHeight();
    BufferedImage new_img = new BufferedImage(height,width,BufferedImage.TYPE_INT_RGB);       
        Graphics2D g2d =new_img.createGraphics();
       
        AffineTransform origXform = g2d.getTransform();
        AffineTransform newXform = (AffineTransform)(origXform.clone());
        // center of rotation is center of the panel
    double radian = 0;
        double xRot = 0;
        double yRot = 0;
    switch(orient){
    case 3:
      radian = 180.0;
      xRot = width/2.0;
      yRot = height/2.0;
    case 6:
      radian = 90.0;
          xRot = height/2.0;
          yRot = xRot;
      break;
    case 8:
      radian = 270.0;
          xRot = width/2.0;
          yRot = xRot;
          break;
        default:
          return false;
    }
        newXform.rotate(Math.toRadians(radian), xRot, yRot);

        g2d.setTransform(newXform);  
        // draw image centered in panel
        g2d.drawImage(old_img, 0, 0, null);
        // Reset to Original
        g2d.setTransform(origXform);
        OutputStream out = saver.write(ctx, imgURL);
        try{
          ImageIO.write(new_img, "JPG", out);
        }finally{
          out.close();
        }
        return true;
  }

  /**
   * �Ƽ���Ƭ
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @return
   * @throws Exception
   */
  protected ActionForward doRecommend(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response, String s_photo_id) throws Exception      
  {
    PhotoForm pform = (PhotoForm)form;
    super.validateClientId(request, pform);
   
    ActionMessages msgs = new ActionMessages();
    do{
      SessionUserObject loginUser = super.getLoginUser(request,response,false);
      if(loginUser==null){
        msgs.add("photo", new ActionMessage("error.user_not_login"));
        break;
      }
      PhotoOutlineBean pbean = PhotoDAO.getPhotoOutlineByID(pform.getId());
      if(pbean==null||pbean.getStatus()!=PhotoBean.STATUS_NORMAL){
        msgs.add("photo", new ActionMessage("error.invalid_photo", new Integer(pform.getId())));
        break;
      }
      //�����ʼ�
      String s_mails = request.getParameter("mails");     
      String[] emails = StringUtils.split(s_mails, ";",MAX_MAIL_COUNT);
      if(emails==null || emails.length==0){
        msgs.add("photo", new ActionMessage("error.no_share_mails"));
        break;
      }
      List vtMails = new ArrayList();
      for(int i=0;i<emails.length;i++){
        String sm = emails[i].trim();
        if(StringUtils.isEmail(sm) && !vtMails.contains(sm))
          vtMails.add(sm);
      }
      if(vtMails.size()==0){
        msgs.add("photo", new ActionMessage("error.no_valid_mail"));
        break;
      }
      sendMails(request, loginUser, pbean, vtMails);
      msgs.add("share", new ActionMessage("mail.sent"));
      break;
    }while(true);
   
    if(!msgs.isEmpty())
      saveMessages(request, msgs);
   
    return mapping.findForward("photo_share");
  }
 

  /**
   * �����������ʼ�����
   *
   * @param request
   * @param rbean
   * @throws Exception
   */
  protected void sendMails(final HttpServletRequest request,
      final SessionUserObject loginUser, final _PhotoBase pbean, final List mails)
      throws Exception {
   
    final String contextPath = request.getContextPath();
    final String urlPrefix = RequestUtils.getUrlPrefix(request);
    final String template = super.getTemplate(TMP_PHOTO_SHARE);
   
    new Thread() {
      public void run() {
        StringBuffer url = new StringBuffer();
        url.append(urlPrefix);
        url.append(contextPath);
        url.append("/html/photo/show.vm?sid=");
        url.append(pbean.getSite().getId());
        url.append("&pid=");
        url.append(pbean.getId());
        String curTime = new SimpleDateFormat("yyyy-MM-dd HH:mm")
            .format(new Date());
        StringBuffer img = new StringBuffer();
        img.append(urlPrefix);
        img.append(contextPath);
        img.append(pbean.getPreviewURL());
        String[] s_mails = new String[mails.size()];
        mails.toArray(s_mails);
        try {
          // �����ʼ�
          String mail_content = MessageFormat.format(template,
              new String[]{loginUser.getNickname(),img.toString(), url.toString(),curTime});
          //System.out.println(mail_content);
          Parser html = new Parser();
          html.setEncoding(Globals.ENC_8859_1);
          html.setInputHTML(mail_content);
          Node[] nodes = html.extractAllNodesThatMatch(
              HtmlNodeFilters.titleFilter).toNodeArray();
          String title = nodes[0].toPlainTextString();
          MailSender sender = MailSender.getHtmlMailSender(null, 25,
              null, null);
          sender.setSubject(title);
          sender.setSendDate(new Date());
          sender.setMailContent(mail_content);
          sender.setMailTo(s_mails, "to");
          MailTransportQueue queue = (MailTransportQueue) getServlet()
              .getServletContext().getAttribute(
                  Globals.MAIL_QUEUE);
          // д��������ʼ�����
          queue.write(pbean.getSite().getId(), sender
              .getMimeMessage());
          if(log.isDebugEnabled())
            log.debug("Photo share mail was written to the sending queue.");
        } catch (Exception e) {
          log.error("send photo share mail failed.", e);
        }finally{
          url = null;
          img = null;
          s_mails = null;
        }
      }
    }.start();
  }
 
 
  /**
   * ɾ����Ƭ
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @return
   * @throws Exception
   */
  protected ActionForward doDelete(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response, String s_photo_id) throws Exception      
  {
    PhotoForm photo = (PhotoForm)form;
    //ɾ����Ƭ�ļ�
    int photo_id = Integer.parseInt(s_photo_id);
    PhotoBean pbean = PhotoDAO.getPhotoByID(photo_id);
    String ext = null;
    if(pbean != null){
      HttpContext context = getHttpContext(mapping, form, request, response);
      getPhotoSaver().delete(context, pbean.getImageURL());
      if(!pbean.getPreviewURL().equals(pbean.getImageURL()))
        getPhotoSaver().delete(context, pbean.getPreviewURL());
      //ɾ�����ݿ���Ϣ
      PhotoDAO.delete(pbean);
      SearchProxy.remove(pbean);
      ext = "aid="+pbean.getAlbum().getId();
    }
    return makeForward(mapping.findForward("photo_album"), photo.getSid(), ext);
  }
 
  /**
   * �ϴ���Ƭ
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @return
   * @throws Exception
   */
  protected ActionForward doUpload(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response) throws Exception      
  {
    PhotoForm photo1 = (PhotoForm)form;
    validateClientId(request, photo1);
   
    ActionMessages msgs = new ActionMessages();
    do{
      FormFile[] files = new FormFile[5];
      files[0] = photo1.getImage();
      files[1] = photo1.getImage2();
      files[2] = photo1.getImage3();
      files[3] = photo1.getImage4();
      files[4] = photo1.getImage5();
     
      //����ಾ�Ƿ���Ч
      AlbumBean album = AlbumDAO.getAlbumByID(photo1.getAlbum());
      if (album == null) {
        msgs.add(ERROR_KEY, new ActionMessage(
            "error.object_not_found", String.valueOf(photo1
                .getAlbum())));
        break;
      }

      SiteBean site = super.getSiteBean(request);
      UserBean loginUser = super.getLoginUserAfterValidateSiteOwner(request);

      String photo_desc;
      if(StringUtils.isNotEmpty(photo1.getDesc())){
        photo_desc = StringUtils.abbreviate(super.autoFiltrate(
            site, photo1.getDesc()), MAX_PHOTO_DESC_LENGTH);
        photo_desc = super.filterScriptAndStyle(photo_desc);
      }
      else
        photo_desc = " ";
     
      for(int i=0;i<files.length;i++){
        if(files[i]==null || files[i].getFileSize()<=0 || StringUtils.isEmpty(files[i].getFileName()))
          continue;
        //�жϵ���ͼƬ�Ĵ�С
        /*
        if(files[i].getFileSize()>4194304){//4*1024*1024
          msgs.add(ERROR_KEY, new ActionMessage("error.file_too_large"));
          break;
        }*/
        if(!accept(files[i])){
          msgs.add(ERROR_KEY, new ActionMessage("error.upload_file_not_supported"));
          break;
        }
        //����ϴ��ռ�����
        int photo_size = DLOG4JUtils.sizeInKbytes(files[i].getFileSize());
        int max_photo_size = site.getCapacity().getPhotoTotal();
        if(max_photo_size >= 0){       
          int current_size = site.getCapacity().getPhotoUsed();
          if((current_size + photo_size) > max_photo_size){
            msgs.add(ERROR_KEY, new ActionMessage("error.photo_space_full"));
            break;
          }
        }
        //������Ƭ����������ͼ
        Photo img = null;
        try{
          img = getPhotoSaver().save(
              getHttpContext(mapping, form, request, response),
              files[i], photo1.getAutoRotate() == 1);
          if(img == null){
            msgs.add(ERROR_KEY, new ActionMessage("error.upload_failed"));
            break;       
          }
          //д�뵽���ݿ�
          PhotoBean pbean = new PhotoBean();
          pbean.setSite(site);
          pbean.setUser(loginUser);
          if(StringUtils.isNotEmpty(photo1.getName())){
            pbean.setName(super.autoFiltrate(site, photo1.getName()));
          }
          else
            pbean.setName(img.getName());
          pbean.setDesc(photo_desc);
          if(StringUtils.isNotEmpty(photo1.getKeyword())){
            if(site.isFlagSet(SiteBean.Flag.ILLEGAL_GLOSSARY_IGNORE))
              pbean.setKeyword(photo1.getKeyword());
            else
              pbean.setKeyword(DLOGSecurityManager.IllegalGlossary
                  .deleteIllegalWord(photo1.getKeyword()));
          }
          pbean.setPreviewURL(img.getPreviewURL());
          pbean.setImageURL(img.getImageURL());
         
          pbean.setPhotoInfo(img);
          pbean.setFileName(super.autoFiltrate(site,img.getFileName()));
          pbean.setStatus(photo1.getStatus());//������������
          PhotoDAO.create(album, pbean, (photo1.getCover()==1));
        }catch(IllegalAccessException e){
          msgs.add(ERROR_KEY, new ActionMessage("error.access_deny", e.getMessage()));
          break;
        }catch(Exception e){
          log.error("Upload photo file failed.", e);
          msgs.add(ERROR_KEY, new ActionMessage("error.upload_failed", e.getMessage()));
          break;
        }
      }
      break;
    }while(true);
   
    if(!msgs.isEmpty()){
      saveMessages(request, msgs);
      ActionForward upload = makeForward(mapping.findForward("photo_upload"), photo1.getSid());
      upload.setRedirect(false);
      return upload;
    }
    String ext = "aid=" + photo1.getAlbum();
    return makeForward(mapping.findForward("photo_album"), photo1.getSid(), ext);
  }

  /**
   * �޸���Ƭ
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @return
   * @throws Exception
   */
  protected ActionForward doUpdate(final ActionMapping mapping,
      final ActionForm form, HttpServletRequest request,
      final HttpServletResponse response) throws Exception      
  {
    PhotoForm photo = (PhotoForm)form;
    validateClientId(request, photo);
    ActionMessages msgs = new ActionMessages();
   
    if(StringUtils.isEmpty(photo.getName()))
      msgs.add("name", new ActionMessage("error.photo.name_empty"));
    else{
      PhotoBean pbean = PhotoDAO.getPhotoByID(photo.getId());
      if(pbean != null){
        if(!StringUtils.equals(pbean.getName(), photo.getName())){
          pbean.setName(super.autoFiltrate(pbean.getSite(), photo.getName()));
        }
       
        if(!StringUtils.equals(pbean.getDesc(),photo.getDesc())){
          String desc = StringUtils.abbreviate(super.autoFiltrate(
              pbean.getSite(), photo.getDesc()),
              MAX_PHOTO_DESC_LENGTH);
          pbean.setDesc(super.filterScriptAndStyle(desc));
        }
        else
          pbean.setDesc(" ");
        pbean.setStatus(photo.getStatus());
        int new_album = photo.getAlbum();
        String new_Keyword = photo.getKeyword();
        if(!pbean.getSite().isFlagSet(SiteBean.Flag.ILLEGAL_GLOSSARY_IGNORE))
          new_Keyword = DLOGSecurityManager.IllegalGlossary.deleteIllegalWord(new_Keyword);
        PhotoDAO.update(new_album, pbean, new_Keyword, (photo.getCover()==1));
      }
    }
   
    if(!msgs.isEmpty()){
      saveMessages(request, msgs);
      return mapping.findForward("photo_edit");
    }
   
    String ext = "aid=" + photo.getAlbum() +"&pid=" + photo.getId();
    return makeForward(mapping.findForward("photo_show"), photo.getSid(), ext);
  }
  /**
   * ������Ƭ�Ĵ������ʵ��
   * @return
   */
  protected PhotoSaver getPhotoSaver(){
    if(photoSaver != null)
      return photoSaver;
    synchronized(this){
      if(photoSaver != null)
        return photoSaver;
      try{
        String clsName = getServlet().getInitParameter(photo_saver_class);
        photoSaver = (PhotoSaver)Class.forName(clsName).newInstance();
      }catch(Exception e){
        photoSaver = new FileSystemSaver();
      }
    }
    return photoSaver;
  }
 
  /**
   * �жϸ������ļ��Ƿ������ϴ�
   * @param file
   * @return
   */
  protected boolean accept(FormFile file){
    String ext = StringUtils.getFileExtend(file.getFileName());
    if(ext==null)
      return false;
    String filesDenied = getServlet().getInitParameter("filesDenied");
    if(filesDenied==null)
      return true;
   
    StringTokenizer st = new StringTokenizer(filesDenied, ",");
    while(st.hasMoreElements()){
      if(ext.equalsIgnoreCase(st.nextToken()))
        return false;
    }
    return true;
  }
 
  protected HttpContext getHttpContext(final ActionMapping mapping,
      final ActionForm form, final HttpServletRequest request,
      final HttpServletResponse response) {
    final ServletContext context = super.context();
    return new HttpContext() {
      public HttpServletRequest getRequest() {
        return request;
      }

      public HttpServletResponse getResponse() {
        return response;
      }

      public HttpServlet getServlet() {
        return servlet;
      }

      public ServletContext getApplication() {
        return context;
      }

      public ActionMapping getMapping() {
        return mapping;
      }

      public ActionForm getForm() {
        return form;
      }
    };
  }
 
  private PhotoSaver photoSaver;
 
}
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