2 * Sone - PageToadlet.java - Copyright © 2010–2019 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 public class PageToadlet extends Toadlet implements LinkEnabledCallback, LinkFilterExceptedToadlet {
44 /** The name of the menu item. */
45 private final String menuName;
47 /** The page that handles processing. */
48 private final Page<FreenetRequest> page;
50 /** The path prefix for the page. */
51 private final String pathPrefix;
54 * Creates a new toadlet that hands off processing to a {@link Page}.
56 * @param highLevelSimpleClient
57 * The high-level simple client
59 * The name of the menu item
61 * The page to handle processing
63 * Prefix that is prepended to all {@link Page#getPath()} return
66 protected PageToadlet(HighLevelSimpleClient highLevelSimpleClient, String menuName, Page<FreenetRequest> page, String pathPrefix) {
67 super(highLevelSimpleClient);
68 this.menuName = menuName;
70 this.pathPrefix = pathPrefix;
74 * Returns the name to display in the menu.
76 * @return The name in the menu
78 public String getMenuName() {
86 public String path() {
87 return pathPrefix + page.getPath();
91 * Handles a HTTP GET request.
94 * The URI of the request
97 * @param toadletContext
100 * if an I/O error occurs
101 * @throws ToadletContextClosedException
102 * if the toadlet context is closed
104 public void handleMethodGET(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
105 handleRequest(new FreenetRequest(uri, Method.GET, httpRequest, toadletContext));
109 * Handles a HTTP POST request.
112 * The URI of the request
115 * @param toadletContext
116 * The toadlet context
117 * @throws IOException
118 * if an I/O error occurs
119 * @throws ToadletContextClosedException
120 * if the toadlet context is closed
122 public void handleMethodPOST(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
123 handleRequest(new FreenetRequest(uri, Method.POST, httpRequest, toadletContext));
130 public String toString() {
131 return getClass().getName() + "[path=" + path() + ",page=" + page + "]";
135 * Handles a HTTP request.
138 * The request to handle
139 * @throws IOException
140 * if an I/O error occurs
141 * @throws ToadletContextClosedException
142 * if the toadlet context is closed
144 private void handleRequest(FreenetRequest pageRequest) throws IOException, ToadletContextClosedException {
145 try (AutoCloseableBucket pageBucket = new AutoCloseableBucket(pageRequest.getToadletContext().getBucketFactory().makeBucket(-1));
146 OutputStream pageBucketOutputStream = pageBucket.getBucket().getOutputStream()) {
147 Response pageResponse = page.handleRequest(pageRequest, new Response(pageBucketOutputStream));
148 MultiValueTable<String, String> headers = new MultiValueTable<>();
149 if (pageResponse.getHeaders() != null) {
150 for (Header header : pageResponse.getHeaders()) {
151 for (String value : header) {
152 headers.put(header.getName(), value);
156 writeReply(pageRequest.getToadletContext(), pageResponse.getStatusCode(), pageResponse.getContentType(), pageResponse.getStatusText(), headers, pageBucket.getBucket());
164 public boolean isEnabled(ToadletContext toadletContext) {
165 if (page instanceof LinkEnabledCallback) {
166 return ((LinkEnabledCallback) page).isEnabled(toadletContext);
172 // LINKFILTEREXCEPTEDTOADLET METHODS
179 public boolean isLinkExcepted(URI link) {
180 return (page instanceof FreenetPage) && ((FreenetPage) page).isLinkExcepted(link);