2 * Sone - UploadImagePage.java - Copyright © 2011–2012 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.io.StreamCopier;
40 import net.pterodactylus.util.logging.Logging;
41 import net.pterodactylus.util.template.Template;
42 import net.pterodactylus.util.template.TemplateContext;
43 import net.pterodactylus.util.web.Method;
44 import freenet.support.api.Bucket;
45 import freenet.support.api.HTTPUploadedFile;
48 * Page implementation that lets the user upload an image.
50 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
52 public class UploadImagePage extends SoneTemplatePage {
55 private static final Logger logger = Logging.getLogger(UploadImagePage.class);
58 * Creates a new “upload image” page.
61 * The template to render
63 * The Sone web interface
65 public UploadImagePage(Template template, WebInterface webInterface) {
66 super("uploadImage.html", template, "Page.UploadImage.Title", webInterface, true);
70 // SONETEMPLATEPAGE METHODS
77 protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException {
78 super.processTemplate(request, templateContext);
79 if (request.getMethod() == Method.POST) {
80 Sone currentSone = getCurrentSone(request.getToadletContext());
81 String parentId = request.getHttpRequest().getPartAsStringFailsafe("parent", 36);
82 Album parent = webInterface.getCore().getAlbum(parentId, false);
84 /* TODO - signal error */
87 if (!currentSone.equals(parent.getSone())) {
88 /* TODO - signal error. */
91 String name = request.getHttpRequest().getPartAsStringFailsafe("title", 200);
92 String description = request.getHttpRequest().getPartAsStringFailsafe("description", 4000);
93 HTTPUploadedFile uploadedFile = request.getHttpRequest().getUploadedFile("image");
94 Bucket fileBucket = uploadedFile.getData();
95 InputStream imageInputStream = null;
96 ByteArrayOutputStream imageDataOutputStream = null;
97 net.pterodactylus.sone.data.Image image = null;
99 imageInputStream = fileBucket.getInputStream();
100 /* TODO - check length */
101 imageDataOutputStream = new ByteArrayOutputStream((int) fileBucket.size());
102 StreamCopier.copy(imageInputStream, imageDataOutputStream);
103 } catch (IOException ioe1) {
104 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
108 Closer.close(imageInputStream);
109 Closer.close(imageDataOutputStream);
111 byte[] imageData = imageDataOutputStream.toByteArray();
112 ByteArrayInputStream imageDataInputStream = null;
113 Image uploadedImage = null;
115 imageDataInputStream = new ByteArrayInputStream(imageData);
116 uploadedImage = ImageIO.read(imageDataInputStream);
117 if (uploadedImage == null) {
118 templateContext.set("messages", webInterface.getL10n().getString("Page.UploadImage.Error.InvalidImage"));
121 String mimeType = getMimeType(imageData);
122 TemporaryImage temporaryImage = webInterface.getCore().createTemporaryImage(mimeType, imageData);
123 image = webInterface.getCore().createImage(currentSone, parent, temporaryImage);
124 image.setTitle(name).setDescription(TextFilter.filter(request.getHttpRequest().getHeader("host"), description)).setWidth(uploadedImage.getWidth(null)).setHeight(uploadedImage.getHeight(null));
125 } catch (IOException ioe1) {
126 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
129 Closer.close(imageDataInputStream);
130 Closer.flush(uploadedImage);
132 throw new RedirectException("imageBrowser.html?album=" + parent.getId());
141 * Tries to detect the MIME type of the encoded image.
145 * @return The MIME type of the image, or “application/octet-stream” if the
146 * image type could not be detected
148 private static String getMimeType(byte[] imageData) {
149 ByteArrayInputStream imageDataInputStream = new ByteArrayInputStream(imageData);
151 ImageInputStream imageInputStream = ImageIO.createImageInputStream(imageDataInputStream);
152 Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(imageInputStream);
153 if (imageReaders.hasNext()) {
154 return imageReaders.next().getOriginatingProvider().getMIMETypes()[0];
156 } catch (IOException ioe1) {
157 logger.log(Level.FINE, "Could not detect MIME type for image.", ioe1);
159 return "application/octet-stream";