src/main/java/net/pterodactylus/sone/web/ajax/GetReplyAjaxPage.java

   1 /*
   2  * Sone - GetReplyAjaxPage.java - Copyright © 2010–2012 David Roden
   3  *
   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.
   8  *
   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.
  13  *
  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/>.
  16  */
  17
  18 package net.pterodactylus.sone.web.ajax;
  19
  20 import java.io.StringWriter;
  21
  22 import net.pterodactylus.sone.data.PostReply;
  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;
  31
  32 /**
  33  * This AJAX page returns the details of a reply.
  34  *
  35  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  36  */
  37 public class GetReplyAjaxPage extends JsonPage {
  38
  39         /** The template to render. */
  40         private final Template replyTemplate;
  41
  42         /**
  43          * Creates a new “get reply” page.
  44          *
  45          * @param webInterface
  46          *            The Sone web interface
  47          * @param replyTemplate
  48          *            The template to render
  49          */
  50         public GetReplyAjaxPage(WebInterface webInterface, Template replyTemplate) {
  51                 super("getReply.ajax", webInterface);
  52                 this.replyTemplate = replyTemplate;
  53         }
  54
  55         //
  56         // JSONPAGE METHODS
  57         //
  58
  59         /**
  60          * {@inheritDoc}
  61          */
  62         @Override
  63         protected JsonObject createJsonObject(FreenetRequest request) {
  64                 String replyId = request.getHttpRequest().getParam("reply");
  65                 PostReply reply = webInterface.getCore().getReply(replyId);
  66                 if ((reply == null) || (reply.getSone() == null)) {
  67                         return createErrorJsonObject("invalid-reply-id");
  68                 }
  69                 return createSuccessJsonObject().put("reply", createJsonReply(request, reply, getCurrentSone(request.getToadletContext())));
  70         }
  71
  72         /**
  73          * {@inheritDoc}
  74          */
  75         @Override
  76         protected boolean needsFormPassword() {
  77                 return false;
  78         }
  79
  80         //
  81         // PRIVATE METHODS
  82         //
  83
  84         /**
  85          * Creates a JSON representation of the given reply.
  86          *
  87          * @param request
  88          *            The request being processed
  89          * @param reply
  90          *            The reply to convert
  91          * @param currentSone
  92          *            The currently logged in Sone (to store in the template)
  93          * @return The JSON representation of the reply
  94          */
  95         private JsonObject createJsonReply(FreenetRequest request, PostReply reply, Sone currentSone) {
  96                 JsonObject jsonReply = new JsonObject();
  97                 jsonReply.put("id", reply.getId());
  98                 jsonReply.put("postId", reply.getPost().getId());
  99                 jsonReply.put("soneId", reply.getSone().getId());
 100                 jsonReply.put("time", reply.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("reply", reply);
 106                 templateContext.set("currentSone", currentSone);
 107                 try {
 108                         replyTemplate.render(templateContext, stringWriter);
 109                 } catch (TemplateException te1) {
 110                         /* TODO - shouldn’t happen. */
 111                 } finally {
 112                         Closer.close(stringWriter);
 113                 }
 114                 return jsonReply.put("html", stringWriter.toString());
 115         }
 116
 117 }