2 * Sone - GetPostAjaxPage.java - Copyright © 2010–2012 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.ajax;
20 import java.io.StringWriter;
22 import net.pterodactylus.sone.data.Post;
23 import net.pterodactylus.sone.data.Sone;
24 import net.pterodactylus.sone.web.WebInterface;
25 import net.pterodactylus.sone.web.page.FreenetRequest;
26 import net.pterodactylus.util.io.Closer;
27 import net.pterodactylus.util.json.JsonObject;
28 import net.pterodactylus.util.template.Template;
29 import net.pterodactylus.util.template.TemplateContext;
30 import net.pterodactylus.util.template.TemplateException;
33 * This AJAX handler retrieves information and rendered representation of a
36 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
38 public class GetPostAjaxPage extends JsonPage {
40 /** The template to render for posts. */
41 private final Template postTemplate;
44 * Creates a new “get post” AJAX handler.
47 * The Sone web interface
49 * The template to render for posts
51 public GetPostAjaxPage(WebInterface webInterface, Template postTemplate) {
52 super("getPost.ajax", webInterface);
53 this.postTemplate = postTemplate;
60 protected JsonObject createJsonObject(FreenetRequest request) {
61 String postId = request.getHttpRequest().getParam("post");
62 Post post = webInterface.getCore().getPost(postId, false);
64 return createErrorJsonObject("invalid-post-id");
66 return createSuccessJsonObject().put("post", createJsonPost(request, post, getCurrentSone(request.getToadletContext())));
73 protected boolean needsFormPassword() {
82 * Creates a JSON object from the given post. The JSON object will only
83 * contain the ID of the post, its time, and its rendered HTML code.
86 * The request being processed
88 * The post to create a JSON object from
90 * The currently logged in Sone (to store in the template)
91 * @return The JSON representation of the post
93 private JsonObject createJsonPost(FreenetRequest request, Post post, Sone currentSone) {
94 JsonObject jsonPost = new JsonObject();
95 jsonPost.put("id", post.getId());
96 jsonPost.put("sone", post.getSone().getId());
97 jsonPost.put("recipient", (post.getRecipient() == null) ? null : post.getRecipient().getId());
98 jsonPost.put("time", post.getTime());
99 StringWriter stringWriter = new StringWriter();
100 TemplateContext templateContext = webInterface.getTemplateContextFactory().createTemplateContext();
101 templateContext.set("core", webInterface.getCore());
102 templateContext.set("request", request);
103 templateContext.set("post", post);
104 templateContext.set("currentSone", currentSone);
105 templateContext.set("localSones", webInterface.getCore().getLocalSones());
107 postTemplate.render(templateContext, stringWriter);
108 } catch (TemplateException te1) {
109 /* TODO - shouldn’t happen. */
111 Closer.close(stringWriter);
113 jsonPost.put("html", stringWriter.toString());