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.sone.utils.AutoCloseableBucket;
25 import net.pterodactylus.util.web.Header;
26 import net.pterodactylus.util.web.Method;
27 import net.pterodactylus.util.web.Page;
28 import net.pterodactylus.util.web.Response;
30 import freenet.client.HighLevelSimpleClient;
31 import freenet.clients.http.LinkEnabledCallback;
32 import freenet.clients.http.LinkFilterExceptedToadlet;
33 import freenet.clients.http.Toadlet;
34 import freenet.clients.http.ToadletContext;
35 import freenet.clients.http.ToadletContextClosedException;
36 import freenet.support.MultiValueTable;
37 import freenet.support.api.HTTPRequest;
40 * {@link Toadlet} implementation that is wrapped around a {@link Page}.
42 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
44 public class PageToadlet extends Toadlet implements LinkEnabledCallback, LinkFilterExceptedToadlet {
46 /** The name of the menu item. */
47 private final String menuName;
49 /** The page that handles processing. */
50 private final Page<FreenetRequest> page;
52 /** The path prefix for the page. */
53 private final String pathPrefix;
56 * Creates a new toadlet that hands off processing to a {@link Page}.
58 * @param highLevelSimpleClient
59 * The high-level simple client
61 * The name of the menu item
63 * The page to handle processing
65 * Prefix that is prepended to all {@link Page#getPath()} return
68 protected PageToadlet(HighLevelSimpleClient highLevelSimpleClient, String menuName, Page<FreenetRequest> page, String pathPrefix) {
69 super(highLevelSimpleClient);
70 this.menuName = menuName;
72 this.pathPrefix = pathPrefix;
76 * Returns the name to display in the menu.
78 * @return The name in the menu
80 public String getMenuName() {
88 public String path() {
89 return pathPrefix + page.getPath();
93 * Handles a HTTP GET request.
96 * The URI of the request
99 * @param toadletContext
100 * The toadlet context
101 * @throws IOException
102 * if an I/O error occurs
103 * @throws ToadletContextClosedException
104 * if the toadlet context is closed
106 public void handleMethodGET(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
107 handleRequest(new FreenetRequest(uri, Method.GET, httpRequest, toadletContext));
111 * Handles a HTTP POST request.
114 * The URI of the request
117 * @param toadletContext
118 * The toadlet context
119 * @throws IOException
120 * if an I/O error occurs
121 * @throws ToadletContextClosedException
122 * if the toadlet context is closed
124 public void handleMethodPOST(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
125 handleRequest(new FreenetRequest(uri, Method.POST, httpRequest, toadletContext));
132 public String toString() {
133 return getClass().getName() + "[path=" + path() + ",page=" + page + "]";
137 * Handles a HTTP request.
140 * The request to handle
141 * @throws IOException
142 * if an I/O error occurs
143 * @throws ToadletContextClosedException
144 * if the toadlet context is closed
146 private void handleRequest(FreenetRequest pageRequest) throws IOException, ToadletContextClosedException {
147 try (AutoCloseableBucket pageBucket = new AutoCloseableBucket(pageRequest.getToadletContext().getBucketFactory().makeBucket(-1));
148 OutputStream pageBucketOutputStream = pageBucket.getBucket().getOutputStream()) {
149 Response pageResponse = page.handleRequest(pageRequest, new Response(pageBucketOutputStream));
150 MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
151 if (pageResponse.getHeaders() != null) {
152 for (Header header : pageResponse.getHeaders()) {
153 for (String value : header) {
154 headers.put(header.getName(), value);
158 writeReply(pageRequest.getToadletContext(), pageResponse.getStatusCode(), pageResponse.getContentType(), pageResponse.getStatusText(), headers, pageBucket.getBucket());
166 public boolean isEnabled(ToadletContext toadletContext) {
167 if (page instanceof LinkEnabledCallback) {
168 return ((LinkEnabledCallback) page).isEnabled(toadletContext);
174 // LINKFILTEREXCEPTEDTOADLET METHODS
181 public boolean isLinkExcepted(URI link) {
182 return (page instanceof FreenetPage) && ((FreenetPage) page).isLinkExcepted(link);