2 * Sone - PageToadlet.java - Copyright © 2010–2016 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.page;
20 import java.io.IOException;
21 import java.io.OutputStream;
24 import net.pterodactylus.util.web.Header;
25 import net.pterodactylus.util.web.Method;
26 import net.pterodactylus.util.web.Page;
27 import net.pterodactylus.util.web.Response;
29 import freenet.client.HighLevelSimpleClient;
30 import freenet.clients.http.LinkEnabledCallback;
31 import freenet.clients.http.LinkFilterExceptedToadlet;
32 import freenet.clients.http.Toadlet;
33 import freenet.clients.http.ToadletContext;
34 import freenet.clients.http.ToadletContextClosedException;
35 import freenet.support.MultiValueTable;
36 import freenet.support.api.Bucket;
37 import freenet.support.api.HTTPRequest;
38 import freenet.support.io.Closer;
41 * {@link Toadlet} implementation that is wrapped around a {@link Page}.
43 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
45 public class PageToadlet extends Toadlet implements LinkEnabledCallback, LinkFilterExceptedToadlet {
47 /** The name of the menu item. */
48 private final String menuName;
50 /** The page that handles processing. */
51 private final Page<FreenetRequest> page;
53 /** The path prefix for the page. */
54 private final String pathPrefix;
57 * Creates a new toadlet that hands off processing to a {@link Page}.
59 * @param highLevelSimpleClient
60 * The high-level simple client
62 * The name of the menu item
64 * The page to handle processing
66 * Prefix that is prepended to all {@link Page#getPath()} return
69 protected PageToadlet(HighLevelSimpleClient highLevelSimpleClient, String menuName, Page<FreenetRequest> page, String pathPrefix) {
70 super(highLevelSimpleClient);
71 this.menuName = menuName;
73 this.pathPrefix = pathPrefix;
77 * Returns the name to display in the menu.
79 * @return The name in the menu
81 public String getMenuName() {
89 public String path() {
90 return pathPrefix + page.getPath();
94 * Handles a HTTP GET request.
97 * The URI of the request
100 * @param toadletContext
101 * The toadlet context
102 * @throws IOException
103 * if an I/O error occurs
104 * @throws ToadletContextClosedException
105 * if the toadlet context is closed
107 public void handleMethodGET(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
108 handleRequest(new FreenetRequest(uri, Method.GET, httpRequest, toadletContext));
112 * Handles a HTTP POST request.
115 * The URI of the request
118 * @param toadletContext
119 * The toadlet context
120 * @throws IOException
121 * if an I/O error occurs
122 * @throws ToadletContextClosedException
123 * if the toadlet context is closed
125 public void handleMethodPOST(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
126 handleRequest(new FreenetRequest(uri, Method.POST, httpRequest, toadletContext));
133 public String toString() {
134 return getClass().getName() + "[path=" + path() + ",page=" + page + "]";
138 * Handles a HTTP request.
141 * The request to handle
142 * @throws IOException
143 * if an I/O error occurs
144 * @throws ToadletContextClosedException
145 * if the toadlet context is closed
147 private void handleRequest(FreenetRequest pageRequest) throws IOException, ToadletContextClosedException {
148 Bucket pageBucket = null;
149 OutputStream pageBucketOutputStream = null;
150 Response pageResponse;
152 pageBucket = pageRequest.getToadletContext().getBucketFactory().makeBucket(-1);
153 pageBucketOutputStream = pageBucket.getOutputStream();
154 pageResponse = page.handleRequest(pageRequest, new Response(pageBucketOutputStream));
155 } catch (IOException ioe1) {
156 Closer.close(pageBucket);
159 Closer.close(pageBucketOutputStream);
161 MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
162 if (pageResponse.getHeaders() != null) {
163 for (Header header : pageResponse.getHeaders()) {
164 for (String value : header) {
165 headers.put(header.getName(), value);
170 writeReply(pageRequest.getToadletContext(), pageResponse.getStatusCode(), pageResponse.getContentType(), pageResponse.getStatusText(), headers, pageBucket);
172 Closer.close(pageBucket);
180 public boolean isEnabled(ToadletContext toadletContext) {
181 if (page instanceof LinkEnabledCallback) {
182 return ((LinkEnabledCallback) page).isEnabled(toadletContext);
188 // LINKFILTEREXCEPTEDTOADLET METHODS
195 public boolean isLinkExcepted(URI link) {
196 return (page instanceof FreenetPage) && ((FreenetPage) page).isLinkExcepted(link);