2 * Sone - UploadImagePage.java - Copyright Ā© 2011 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.web.page.FreenetRequest;
37 import net.pterodactylus.util.io.Closer;
38 import net.pterodactylus.util.io.StreamCopier;
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;
43 import freenet.support.api.Bucket;
44 import freenet.support.api.HTTPUploadedFile;
47 * Page implementation that lets the user upload an image.
49 * @author <a href="mailto:bombe@pterodactylus.net">David āBombeā Roden</a>
51 public class UploadImagePage extends SoneTemplatePage {
54 private static final Logger logger = Logging.getLogger(UploadImagePage.class);
57 * Creates a new āupload imageā page.
60 * The template to render
62 * The Sone web interface
64 public UploadImagePage(Template template, WebInterface webInterface) {
65 super("uploadImage.html", template, "Page.UploadImage.Title", webInterface, true);
69 // SONETEMPLATEPAGE METHODS
76 protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException {
77 super.processTemplate(request, templateContext);
78 if (request.getMethod() == Method.POST) {
79 Sone currentSone = getCurrentSone(request.getToadletContext());
80 String parentId = request.getHttpRequest().getPartAsStringFailsafe("parent", 36);
81 Album parent = webInterface.getCore().getAlbum(parentId, false);
83 /* TODO - signal error */
86 if (!currentSone.equals(parent.getSone())) {
87 /* TODO - signal error. */
90 String name = request.getHttpRequest().getPartAsStringFailsafe("title", 200);
91 String description = request.getHttpRequest().getPartAsStringFailsafe("description", 4000);
92 HTTPUploadedFile uploadedFile = request.getHttpRequest().getUploadedFile("image");
93 Bucket fileBucket = uploadedFile.getData();
94 InputStream imageInputStream = null;
95 ByteArrayOutputStream imageDataOutputStream = null;
96 net.pterodactylus.sone.data.Image image = null;
98 imageInputStream = fileBucket.getInputStream();
99 /* TODO - check length */
100 imageDataOutputStream = new ByteArrayOutputStream((int) fileBucket.size());
101 StreamCopier.copy(imageInputStream, imageDataOutputStream);
102 } catch (IOException ioe1) {
103 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
107 Closer.close(imageInputStream);
108 Closer.close(imageDataOutputStream);
110 byte[] imageData = imageDataOutputStream.toByteArray();
111 ByteArrayInputStream imageDataInputStream = null;
112 Image uploadedImage = null;
114 imageDataInputStream = new ByteArrayInputStream(imageData);
115 uploadedImage = ImageIO.read(imageDataInputStream);
116 if (uploadedImage == null) {
117 templateContext.set("messages", webInterface.getL10n().getString("Page.UploadImage.Error.InvalidImage"));
120 String mimeType = getMimeType(imageData);
121 TemporaryImage temporaryImage = webInterface.getCore().createTemporaryImage(mimeType, imageData);
122 image = webInterface.getCore().createImage(currentSone, parent, temporaryImage);
123 image.setTitle(name).setDescription(description).setWidth(uploadedImage.getWidth(null)).setHeight(uploadedImage.getHeight(null));
124 } catch (IOException ioe1) {
125 logger.log(Level.WARNING, "Could not read uploaded image!", ioe1);
128 Closer.close(imageDataInputStream);
129 Closer.flush(uploadedImage);
131 throw new RedirectException("imageBrowser.html?album=" + parent.getId());
140 * Tries to detect the MIME type of the encoded image.
144 * @return The MIME type of the image, or āapplication/octet-streamā if the
145 * image type could not be detected
147 private String getMimeType(byte[] imageData) {
148 ByteArrayInputStream imageDataInputStream = new ByteArrayInputStream(imageData);
150 ImageInputStream imageInputStream = ImageIO.createImageInputStream(imageDataInputStream);
151 Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(imageInputStream);
152 if (imageReaders.hasNext()) {
153 return imageReaders.next().getOriginatingProvider().getMIMETypes()[0];
155 } catch (IOException ioe1) {
156 logger.log(Level.FINE, "Could not detect MIME type for image.", ioe1);
158 return "application/octet-stream";