2 * Sone - UploadImagePage.java - Copyright © 2011–2013 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.web;
20 import java.awt.Image;
21 import java.io.ByteArrayInputStream;
22 import java.io.ByteArrayOutputStream;
23 import java.io.IOException;
24 import java.io.InputStream;
25 import java.util.Iterator;
26 import java.util.logging.Level;
27 import java.util.logging.Logger;
29 import javax.imageio.ImageIO;
30 import javax.imageio.ImageReader;
31 import javax.imageio.stream.ImageInputStream;
33 import net.pterodactylus.sone.data.Album;
34 import net.pterodactylus.sone.data.Sone;
35 import net.pterodactylus.sone.data.TemporaryImage;
36 import net.pterodactylus.sone.text.TextFilter;
37 import net.pterodactylus.sone.web.page.FreenetRequest;
38 import net.pterodactylus.util.io.Closer;
39 import net.pterodactylus.util.logging.Logging;
40 import net.pterodactylus.util.template.Template;
41 import net.pterodactylus.util.template.TemplateContext;
42 import net.pterodactylus.util.web.Method;
44 import com.google.common.io.ByteStreams;
46 import freenet.support.api.Bucket;
47 import freenet.support.api.HTTPUploadedFile;
50 * Page implementation that lets the user upload an image.
52 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
54 public class UploadImagePage extends SoneTemplatePage {
57 private static final Logger logger = Logging.getLogger(UploadImagePage.class);
60 * Creates a new “upload image” page.
63 * The template to render
65 * The Sone web interface
67 public UploadImagePage(Template template, WebInterface webInterface) {
68 super("uploadImage.html", template, "Page.UploadImage.Title", webInterface, true);
72 // SONETEMPLATEPAGE METHODS
79 protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException {
80 super.processTemplate(request, templateContext);
81 if (request.getMethod() == Method.POST) {
82 Sone currentSone = getCurrentSone(request.getToadletContext());
83 String parentId = request.getHttpRequest().getPartAsStringFailsafe("parent", 36);
84 Album parent = webInterface.getCore().getAlbum(parentId, false);
86 /* TODO - signal error */
89 if (!currentSone.equals(parent.getSone())) {
90 /* TODO - signal error. */
93 String name = request.getHttpRequest().getPartAsStringFailsafe("title", 200);
94 String description = request.getHttpRequest().getPartAsStringFailsafe("description", 4000);
95 HTTPUploadedFile uploadedFile = request.getHttpRequest().getUploadedFile("image");
96 Bucket fileBucket = uploadedFile.getData();
97 InputStream imageInputStream = null;
98 ByteArrayOutputStream imageDataOutputStream = null;
99 net.pterodactylus.sone.data.Image image = null;
101 imageInputStream = fileBucket.getInputStream();
102 /* TODO - check length */
103 imageDataOutputStream = new ByteArrayOutputStream((int) fileBucket.size());
104 ByteStreams.copy(imageInputStream, imageDataOutputStream);
105 } catch (IOException ioe1) {
106 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
110 Closer.close(imageInputStream);
111 Closer.close(imageDataOutputStream);
113 byte[] imageData = imageDataOutputStream.toByteArray();
114 ByteArrayInputStream imageDataInputStream = null;
115 Image uploadedImage = null;
117 imageDataInputStream = new ByteArrayInputStream(imageData);
118 uploadedImage = ImageIO.read(imageDataInputStream);
119 if (uploadedImage == null) {
120 templateContext.set("messages", webInterface.getL10n().getString("Page.UploadImage.Error.InvalidImage"));
123 String mimeType = getMimeType(imageData);
124 TemporaryImage temporaryImage = webInterface.getCore().createTemporaryImage(mimeType, imageData);
125 image = webInterface.getCore().createImage(currentSone, parent, temporaryImage);
126 image.setTitle(name).setDescription(TextFilter.filter(request.getHttpRequest().getHeader("host"), description)).setWidth(uploadedImage.getWidth(null)).setHeight(uploadedImage.getHeight(null));
127 } catch (IOException ioe1) {
128 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
131 Closer.close(imageDataInputStream);
132 Closer.flush(uploadedImage);
134 throw new RedirectException("imageBrowser.html?album=" + parent.getId());
143 * Tries to detect the MIME type of the encoded image.
147 * @return The MIME type of the image, or “application/octet-stream” if the
148 * image type could not be detected
150 private static String getMimeType(byte[] imageData) {
151 ByteArrayInputStream imageDataInputStream = new ByteArrayInputStream(imageData);
153 ImageInputStream imageInputStream = ImageIO.createImageInputStream(imageDataInputStream);
154 Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(imageInputStream);
155 if (imageReaders.hasNext()) {
156 return imageReaders.next().getOriginatingProvider().getMIMETypes()[0];
158 } catch (IOException ioe1) {
159 logger.log(Level.FINE, "Could not detect MIME type for image.", ioe1);
161 return "application/octet-stream";