2 * Sone - PageToadlet.java - Copyright © 2010–2013 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.page;
20 import java.io.IOException;
23 import net.pterodactylus.util.web.Header;
24 import net.pterodactylus.util.web.Method;
25 import net.pterodactylus.util.web.Page;
26 import net.pterodactylus.util.web.Response;
27 import freenet.client.HighLevelSimpleClient;
28 import freenet.clients.http.LinkEnabledCallback;
29 import freenet.clients.http.LinkFilterExceptedToadlet;
30 import freenet.clients.http.Toadlet;
31 import freenet.clients.http.ToadletContext;
32 import freenet.clients.http.ToadletContextClosedException;
33 import freenet.support.MultiValueTable;
34 import freenet.support.api.Bucket;
35 import freenet.support.api.HTTPRequest;
36 import freenet.support.io.Closer;
39 * {@link Toadlet} implementation that is wrapped around a {@link Page}.
41 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
43 public class PageToadlet extends Toadlet implements LinkEnabledCallback, LinkFilterExceptedToadlet {
45 /** The name of the menu item. */
46 private final String menuName;
48 /** The page that handles processing. */
49 private final Page<FreenetRequest> page;
51 /** The path prefix for the page. */
52 private final String pathPrefix;
55 * Creates a new toadlet that hands off processing to a {@link Page}.
57 * @param highLevelSimpleClient
58 * The high-level simple client
60 * The name of the menu item
62 * The page to handle processing
64 * Prefix that is prepended to all {@link Page#getPath()} return
67 protected PageToadlet(HighLevelSimpleClient highLevelSimpleClient, String menuName, Page<FreenetRequest> page, String pathPrefix) {
68 super(highLevelSimpleClient);
69 this.menuName = menuName;
71 this.pathPrefix = pathPrefix;
75 * Returns the name to display in the menu.
77 * @return The name in the menu
79 public String getMenuName() {
87 public String path() {
88 return pathPrefix + page.getPath();
92 * Handles a HTTP GET request.
95 * The URI of the request
98 * @param toadletContext
100 * @throws IOException
101 * if an I/O error occurs
102 * @throws ToadletContextClosedException
103 * if the toadlet context is closed
105 public void handleMethodGET(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
106 handleRequest(new FreenetRequest(uri, Method.GET, httpRequest, toadletContext));
110 * Handles a HTTP POST request.
113 * The URI of the request
116 * @param toadletContext
117 * The toadlet context
118 * @throws IOException
119 * if an I/O error occurs
120 * @throws ToadletContextClosedException
121 * if the toadlet context is closed
123 public void handleMethodPOST(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
124 handleRequest(new FreenetRequest(uri, Method.POST, httpRequest, toadletContext));
131 public String toString() {
132 return getClass().getName() + "[path=" + path() + ",page=" + page + "]";
136 * Handles a HTTP request.
139 * The request to handle
140 * @throws IOException
141 * if an I/O error occurs
142 * @throws ToadletContextClosedException
143 * if the toadlet context is closed
145 private void handleRequest(FreenetRequest pageRequest) throws IOException, ToadletContextClosedException {
146 Bucket pageBucket = null;
148 pageBucket = pageRequest.getToadletContext().getBucketFactory().makeBucket(-1);
149 Response pageResponse = new Response(pageBucket.getOutputStream());
150 pageResponse = page.handleRequest(pageRequest, pageResponse);
151 MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
152 if (pageResponse.getHeaders() != null) {
153 for (Header header : pageResponse.getHeaders()) {
154 for (String value : header) {
155 headers.put(header.getName(), value);
159 writeReply(pageRequest.getToadletContext(), pageResponse.getStatusCode(), pageResponse.getContentType(), pageResponse.getStatusText(), headers, pageBucket);
160 } catch (Throwable t1) {
161 writeInternalError(t1, pageRequest.getToadletContext());
163 Closer.close(pageBucket);
171 public boolean isEnabled(ToadletContext toadletContext) {
172 if (page instanceof LinkEnabledCallback) {
173 return ((LinkEnabledCallback) page).isEnabled(toadletContext);
179 // LINKFILTEREXCEPTEDTOADLET METHODS
186 public boolean isLinkExcepted(URI link) {
187 return (page instanceof FreenetPage) ? ((FreenetPage) page).isLinkExcepted(link) : false;