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.SessionManager;
34 import freenet.clients.http.Toadlet;
35 import freenet.clients.http.ToadletContext;
36 import freenet.clients.http.ToadletContextClosedException;
37 import freenet.support.MultiValueTable;
38 import freenet.support.api.HTTPRequest;
41 * {@link Toadlet} implementation that is wrapped around a {@link Page}.
43 public class PageToadlet extends Toadlet implements LinkEnabledCallback, LinkFilterExceptedToadlet {
45 private final SessionManager sessionManager;
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, SessionManager sessionManager, String menuName, Page<FreenetRequest> page, String pathPrefix) {
70 super(highLevelSimpleClient);
71 this.sessionManager = sessionManager;
72 this.menuName = menuName;
74 this.pathPrefix = pathPrefix;
78 * Returns the name to display in the menu.
80 * @return The name in the menu
82 public String getMenuName() {
90 public String path() {
91 return pathPrefix + page.getPath();
95 * Handles a HTTP GET request.
98 * The URI of the request
101 * @param toadletContext
102 * The toadlet context
103 * @throws IOException
104 * if an I/O error occurs
105 * @throws ToadletContextClosedException
106 * if the toadlet context is closed
108 public void handleMethodGET(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
109 handleRequest(new FreenetRequest(uri, Method.GET, httpRequest, toadletContext, sessionManager));
113 * Handles a HTTP POST request.
116 * The URI of the request
119 * @param toadletContext
120 * The toadlet context
121 * @throws IOException
122 * if an I/O error occurs
123 * @throws ToadletContextClosedException
124 * if the toadlet context is closed
126 public void handleMethodPOST(URI uri, HTTPRequest httpRequest, ToadletContext toadletContext) throws IOException, ToadletContextClosedException {
127 handleRequest(new FreenetRequest(uri, Method.POST, httpRequest, toadletContext, sessionManager));
134 public String toString() {
135 return getClass().getName() + "[path=" + path() + ",page=" + page + "]";
139 * Handles a HTTP request.
142 * The request to handle
143 * @throws IOException
144 * if an I/O error occurs
145 * @throws ToadletContextClosedException
146 * if the toadlet context is closed
148 private void handleRequest(FreenetRequest pageRequest) throws IOException, ToadletContextClosedException {
149 try (AutoCloseableBucket pageBucket = new AutoCloseableBucket(pageRequest.getToadletContext().getBucketFactory().makeBucket(-1));
150 OutputStream pageBucketOutputStream = pageBucket.getBucket().getOutputStream()) {
151 Response pageResponse = page.handleRequest(pageRequest, new Response(pageBucketOutputStream));
152 MultiValueTable<String, String> headers = new MultiValueTable<>();
153 if (pageResponse.getHeaders() != null) {
154 for (Header header : pageResponse.getHeaders()) {
155 for (String value : header) {
156 headers.put(header.getName(), value);
160 writeReply(pageRequest.getToadletContext(), pageResponse.getStatusCode(), pageResponse.getContentType(), pageResponse.getStatusText(), headers, pageBucket.getBucket());
168 public boolean isEnabled(ToadletContext toadletContext) {
169 if (page instanceof LinkEnabledCallback) {
170 return ((LinkEnabledCallback) page).isEnabled(toadletContext);
176 // LINKFILTEREXCEPTEDTOADLET METHODS
183 public boolean isLinkExcepted(URI link) {
184 return (page instanceof FreenetPage) && ((FreenetPage) page).isLinkExcepted(link);