2 * Sone - GetPostAjaxPage.java - Copyright Ā© 2010ā2013 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 com.google.common.base.Optional;
24 import net.pterodactylus.sone.data.Post;
25 import net.pterodactylus.sone.data.Sone;
26 import net.pterodactylus.sone.web.WebInterface;
27 import net.pterodactylus.sone.web.page.FreenetRequest;
28 import net.pterodactylus.util.io.Closer;
29 import net.pterodactylus.util.json.JsonObject;
30 import net.pterodactylus.util.template.Template;
31 import net.pterodactylus.util.template.TemplateContext;
32 import net.pterodactylus.util.template.TemplateException;
35 * This AJAX handler retrieves information and rendered representation of a
38 * @author <a href="mailto:bombe@pterodactylus.net">David āBombeā Roden</a>
40 public class GetPostAjaxPage extends JsonPage {
42 /** The template to render for posts. */
43 private final Template postTemplate;
46 * Creates a new āget postā AJAX handler.
49 * The Sone web interface
51 * The template to render for posts
53 public GetPostAjaxPage(WebInterface webInterface, Template postTemplate) {
54 super("getPost.ajax", webInterface);
55 this.postTemplate = postTemplate;
62 protected JsonObject createJsonObject(FreenetRequest request) {
63 String postId = request.getHttpRequest().getParam("post");
64 Optional<Post> post = webInterface.getCore().getPost(postId);
65 if (!post.isPresent()) {
66 return createErrorJsonObject("invalid-post-id");
68 return createSuccessJsonObject().put("post", createJsonPost(request, post.get(), getCurrentSone(request.getToadletContext())));
75 protected boolean needsFormPassword() {
84 * Creates a JSON object from the given post. The JSON object will only
85 * contain the ID of the post, its time, and its rendered HTML code.
88 * The request being processed
90 * The post to create a JSON object from
92 * The currently logged in Sone (to store in the template)
93 * @return The JSON representation of the post
95 private JsonObject createJsonPost(FreenetRequest request, Post post, Sone currentSone) {
96 JsonObject jsonPost = new JsonObject();
97 jsonPost.put("id", post.getId());
98 jsonPost.put("sone", post.getSone().getId());
99 jsonPost.put("recipient", post.getRecipientId().orNull());
100 jsonPost.put("time", post.getTime());
101 StringWriter stringWriter = new StringWriter();
102 TemplateContext templateContext = webInterface.getTemplateContextFactory().createTemplateContext();
103 templateContext.set("core", webInterface.getCore());
104 templateContext.set("request", request);
105 templateContext.set("post", post);
106 templateContext.set("currentSone", currentSone);
107 templateContext.set("localSones", webInterface.getCore().getLocalSones());
109 postTemplate.render(templateContext, stringWriter);
110 } catch (TemplateException te1) {
111 /* TODO - shouldnāt happen. */
113 Closer.close(stringWriter);
115 jsonPost.put("html", stringWriter.toString());