001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.portalsettings.action;
016    
017    import com.liferay.portal.ImageTypeException;
018    import com.liferay.portal.kernel.exception.PortalException;
019    import com.liferay.portal.kernel.exception.SystemException;
020    import com.liferay.portal.kernel.image.ImageBag;
021    import com.liferay.portal.kernel.image.ImageToolUtil;
022    import com.liferay.portal.kernel.json.JSONFactoryUtil;
023    import com.liferay.portal.kernel.json.JSONObject;
024    import com.liferay.portal.kernel.log.Log;
025    import com.liferay.portal.kernel.log.LogFactoryUtil;
026    import com.liferay.portal.kernel.portlet.PortletResponseUtil;
027    import com.liferay.portal.kernel.repository.model.FileEntry;
028    import com.liferay.portal.kernel.servlet.SessionErrors;
029    import com.liferay.portal.kernel.upload.UploadException;
030    import com.liferay.portal.kernel.upload.UploadPortletRequest;
031    import com.liferay.portal.kernel.util.Constants;
032    import com.liferay.portal.kernel.util.MimeTypesUtil;
033    import com.liferay.portal.kernel.util.ParamUtil;
034    import com.liferay.portal.kernel.util.StreamUtil;
035    import com.liferay.portal.kernel.util.TempFileUtil;
036    import com.liferay.portal.kernel.util.Validator;
037    import com.liferay.portal.model.Company;
038    import com.liferay.portal.security.auth.PrincipalException;
039    import com.liferay.portal.service.CompanyServiceUtil;
040    import com.liferay.portal.struts.PortletAction;
041    import com.liferay.portal.theme.ThemeDisplay;
042    import com.liferay.portal.util.PortalUtil;
043    import com.liferay.portal.util.WebKeys;
044    import com.liferay.portlet.documentlibrary.FileSizeException;
045    import com.liferay.portlet.documentlibrary.NoSuchFileEntryException;
046    import com.liferay.portlet.documentlibrary.NoSuchFileException;
047    
048    import java.awt.Rectangle;
049    import java.awt.image.BufferedImage;
050    import java.awt.image.RenderedImage;
051    
052    import java.io.InputStream;
053    
054    import javax.portlet.ActionRequest;
055    import javax.portlet.ActionResponse;
056    import javax.portlet.MimeResponse;
057    import javax.portlet.PortletConfig;
058    import javax.portlet.PortletRequest;
059    import javax.portlet.RenderRequest;
060    import javax.portlet.RenderResponse;
061    import javax.portlet.ResourceRequest;
062    import javax.portlet.ResourceResponse;
063    
064    import org.apache.struts.action.ActionForm;
065    import org.apache.struts.action.ActionForward;
066    import org.apache.struts.action.ActionMapping;
067    
068    /**
069     * @author Brian Wing Shun Chan
070     */
071    public class EditCompanyLogoAction extends PortletAction {
072    
073            @Override
074            public void processAction(
075                            ActionMapping actionMapping, ActionForm actionForm,
076                            PortletConfig portletConfig, ActionRequest actionRequest,
077                            ActionResponse actionResponse)
078                    throws Exception {
079    
080                    try {
081                            String cmd = ParamUtil.getString(actionRequest, Constants.CMD);
082    
083                            if (cmd.equals(Constants.ADD_TEMP)) {
084                                    addTempImageFile(actionRequest);
085                            }
086                            else {
087                                    saveTempImageFile(actionRequest);
088    
089                                    sendRedirect(actionRequest, actionResponse);
090                            }
091                    }
092                    catch (Exception e) {
093                            if (e instanceof PrincipalException) {
094                                    SessionErrors.add(actionRequest, e.getClass());
095    
096                                    setForward(actionRequest, "portlet.portal_settings.error");
097                            }
098                            else if (e instanceof FileSizeException ||
099                                             e instanceof ImageTypeException) {
100    
101                                    JSONObject jsonObject = JSONFactoryUtil.createJSONObject();
102    
103                                    jsonObject.putException(e);
104    
105                                    writeJSON(actionRequest, actionResponse, jsonObject);
106                            }
107                            else if (e instanceof NoSuchFileException ||
108                                             e instanceof UploadException) {
109    
110                                    SessionErrors.add(actionRequest, e.getClass());
111                            }
112                            else {
113                                    throw e;
114                            }
115                    }
116            }
117    
118            @Override
119            public ActionForward render(
120                            ActionMapping actionMapping, ActionForm actionForm,
121                            PortletConfig portletConfig, RenderRequest renderRequest,
122                            RenderResponse renderResponse)
123                    throws Exception {
124    
125                    return actionMapping.findForward(
126                            getForward(
127                                    renderRequest, "portlet.portal_settings.edit_company_logo"));
128            }
129    
130            @Override
131            public void serveResource(
132                            ActionMapping actionMapping, ActionForm actionForm,
133                            PortletConfig portletConfig, ResourceRequest resourceRequest,
134                            ResourceResponse resourceResponse)
135                    throws Exception {
136    
137                    try {
138                            String cmd = ParamUtil.getString(resourceRequest, Constants.CMD);
139    
140                            if (cmd.equals(Constants.GET_TEMP)) {
141                                    FileEntry tempFileEntry = getTempImageFileEntry(
142                                            resourceRequest);
143    
144                                    serveTempImageFile(
145                                            resourceResponse, tempFileEntry.getContentStream());
146                            }
147                    }
148                    catch (NoSuchFileEntryException nsfee) {
149                    }
150                    catch (Exception e) {
151                            _log.error(e);
152                    }
153            }
154    
155            protected void addTempImageFile(PortletRequest portletRequest)
156                    throws Exception {
157    
158                    UploadPortletRequest uploadPortletRequest =
159                            PortalUtil.getUploadPortletRequest(portletRequest);
160    
161                    ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
162                            WebKeys.THEME_DISPLAY);
163    
164                    String contentType = uploadPortletRequest.getContentType("fileName");
165    
166                    if (!MimeTypesUtil.isWebImage(contentType)) {
167                            throw new ImageTypeException();
168                    }
169    
170                    try {
171                            TempFileUtil.deleteTempFile(
172                                    themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
173                                    getTempImageFileName(portletRequest), getTempImageFolderName());
174                    }
175                    catch (Exception e) {
176                    }
177    
178                    InputStream inputStream = null;
179    
180                    try {
181                            inputStream = uploadPortletRequest.getFileAsStream("fileName");
182    
183                            TempFileUtil.addTempFile(
184                                    themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
185                                    getTempImageFileName(portletRequest), getTempImageFolderName(),
186                                    inputStream, contentType);
187                    }
188                    finally {
189                            StreamUtil.cleanUp(inputStream);
190                    }
191            }
192    
193            protected RenderedImage getCroppedRenderedImage(
194                    RenderedImage renderedImage, int height, int width, int x, int y) {
195    
196                    Rectangle rectangle = new Rectangle(width, height);
197    
198                    Rectangle croppedRectangle = rectangle.intersection(
199                            new Rectangle(renderedImage.getWidth(), renderedImage.getHeight()));
200    
201                    BufferedImage bufferedImage = ImageToolUtil.getBufferedImage(
202                            renderedImage);
203    
204                    return bufferedImage.getSubimage(
205                            x, y, croppedRectangle.width, croppedRectangle.height);
206            }
207    
208            protected FileEntry getTempImageFileEntry(PortletRequest portletRequest)
209                    throws PortalException, SystemException {
210    
211                    ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
212                            WebKeys.THEME_DISPLAY);
213    
214                    return TempFileUtil.getTempFile(
215                            themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
216                            getTempImageFileName(portletRequest), getTempImageFolderName());
217            }
218    
219            protected String getTempImageFileName(PortletRequest portletRequest) {
220                    ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
221                            WebKeys.THEME_DISPLAY);
222    
223                    return String.valueOf(themeDisplay.getCompanyId());
224            }
225    
226            protected String getTempImageFolderName() {
227                    Class<?> clazz = getClass();
228    
229                    return clazz.getName();
230            }
231    
232            protected void saveTempImageFile(ActionRequest actionRequest)
233                    throws Exception {
234    
235                    FileEntry tempFileEntry = null;
236    
237                    InputStream tempImageStream = null;
238    
239                    try {
240                            tempFileEntry = getTempImageFileEntry(actionRequest);
241    
242                            tempImageStream = tempFileEntry.getContentStream();
243    
244                            ImageBag imageBag = ImageToolUtil.read(tempImageStream);
245    
246                            RenderedImage renderedImage = imageBag.getRenderedImage();
247    
248                            String cropRegionJSON = ParamUtil.getString(
249                                    actionRequest, "cropRegion");
250    
251                            if (Validator.isNotNull(cropRegionJSON)) {
252                                    JSONObject jsonObject = JSONFactoryUtil.createJSONObject(
253                                            cropRegionJSON);
254    
255                                    int height = jsonObject.getInt("height");
256                                    int width = jsonObject.getInt("width");
257                                    int x = jsonObject.getInt("x");
258                                    int y = jsonObject.getInt("y");
259    
260                                    renderedImage = getCroppedRenderedImage(
261                                            renderedImage, height, width, x, y);
262                            }
263    
264                            byte[] bytes = ImageToolUtil.getBytes(
265                                    renderedImage, imageBag.getType());
266    
267                            saveTempImageFile(actionRequest, bytes);
268                    }
269                    catch (NoSuchFileEntryException nsfee) {
270                            throw new UploadException(nsfee);
271                    }
272                    finally {
273                            StreamUtil.cleanUp(tempImageStream);
274    
275                            if (tempFileEntry != null) {
276                                    TempFileUtil.deleteTempFile(tempFileEntry.getFileEntryId());
277                            }
278                    }
279            }
280    
281            protected void saveTempImageFile(
282                            PortletRequest portletRequest, byte[] bytes)
283                    throws Exception {
284    
285                    ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
286                            WebKeys.THEME_DISPLAY);
287    
288                    Company company = CompanyServiceUtil.updateLogo(
289                            themeDisplay.getCompanyId(), bytes);
290    
291                    themeDisplay.setCompany(company);
292            }
293    
294            protected void serveTempImageFile(
295                            MimeResponse mimeResponse, InputStream tempImageStream)
296                    throws Exception {
297    
298                    ImageBag imageBag = ImageToolUtil.read(tempImageStream);
299    
300                    byte[] bytes = ImageToolUtil.getBytes(
301                            imageBag.getRenderedImage(), imageBag.getType());
302    
303                    String contentType = MimeTypesUtil.getExtensionContentType(
304                            imageBag.getType());
305    
306                    mimeResponse.setContentType(contentType);
307    
308                    PortletResponseUtil.write(mimeResponse, bytes);
309            }
310    
311            private static Log _log = LogFactoryUtil.getLog(
312                    EditCompanyLogoAction.class);
313    
314    }