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

   1 /*
   2  * Sone - GetNotificationsAjaxPage.java - Copyright © 2011–2016 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 static com.fasterxml.jackson.databind.node.JsonNodeFactory.instance;
  21
  22 import java.io.IOException;
  23 import java.io.StringWriter;
  24 import java.util.ArrayList;
  25 import java.util.Collections;
  26 import java.util.List;
  27
  28 import net.pterodactylus.sone.data.Sone;
  29 import net.pterodactylus.sone.main.SonePlugin;
  30 import net.pterodactylus.sone.web.WebInterface;
  31 import net.pterodactylus.sone.web.page.FreenetRequest;
  32 import net.pterodactylus.util.notify.Notification;
  33 import net.pterodactylus.util.notify.TemplateNotification;
  34 import net.pterodactylus.util.template.TemplateContext;
  35
  36 import com.fasterxml.jackson.databind.JsonNode;
  37 import com.fasterxml.jackson.databind.node.ArrayNode;
  38 import com.fasterxml.jackson.databind.node.ObjectNode;
  39
  40 /**
  41  * AJAX handler to return all current notifications.
  42  *
  43  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  44  */
  45 public class GetNotificationsAjaxPage extends JsonPage {
  46
  47         /**
  48          * Creates a new “get notifications” AJAX handler.
  49          *
  50          * @param webInterface
  51          *            The Sone web interface
  52          */
  53         public GetNotificationsAjaxPage(WebInterface webInterface) {
  54                 super("getNotifications.ajax", webInterface);
  55         }
  56
  57         //
  58         // JSONPAGE METHODS
  59         //
  60
  61         /**
  62          * {@inheritDoc}
  63          */
  64         @Override
  65         protected boolean needsFormPassword() {
  66                 return false;
  67         }
  68
  69         /**
  70          * {@inheritDoc}
  71          */
  72         @Override
  73         protected boolean requiresLogin() {
  74                 return false;
  75         }
  76
  77         /**
  78          * {@inheritDoc}
  79          */
  80         @Override
  81         protected JsonReturnObject createJsonObject(FreenetRequest request) {
  82                 Sone currentSone = getCurrentSone(request.getToadletContext(), false);
  83                 List<Notification> notifications = new ArrayList<Notification>(webInterface.getNotifications(currentSone));
  84                 Collections.sort(notifications, Notification.CREATED_TIME_SORTER);
  85                 ArrayNode jsonNotifications = new ArrayNode(instance);
  86                 for (Notification notification : notifications) {
  87                         jsonNotifications.add(createJsonNotification(request, notification));
  88                 }
  89                 return createSuccessJsonObject().put("notificationHash", notifications.hashCode()).put("notifications", jsonNotifications).put("options", createJsonOptions(currentSone));
  90         }
  91
  92         //
  93         // PRIVATE METHODS
  94         //
  95
  96         /**
  97          * Creates a JSON object from the given notification.
  98          *
  99          * @param request
 100          *            The request to load the session from
 101          * @param notification
 102          *            The notification to create a JSON object
 103          * @return The JSON object
 104          */
 105         private JsonNode createJsonNotification(FreenetRequest request, Notification notification) {
 106                 ObjectNode jsonNotification = new ObjectNode(instance);
 107                 jsonNotification.put("id", notification.getId());
 108                 StringWriter notificationWriter = new StringWriter();
 109                 try {
 110                         if (notification instanceof TemplateNotification) {
 111                                 TemplateContext templateContext = webInterface.getTemplateContextFactory().createTemplateContext().mergeContext(((TemplateNotification) notification).getTemplateContext());
 112                                 templateContext.set("core", webInterface.getCore());
 113                                 templateContext.set("currentSone", webInterface.getCurrentSone(request.getToadletContext(), false));
 114                                 templateContext.set("localSones", webInterface.getCore().getLocalSones());
 115                                 templateContext.set("request", request);
 116                                 templateContext.set("currentVersion", SonePlugin.VERSION);
 117                                 templateContext.set("hasLatestVersion", webInterface.getCore().getUpdateChecker().hasLatestVersion());
 118                                 templateContext.set("latestEdition", webInterface.getCore().getUpdateChecker().getLatestEdition());
 119                                 templateContext.set("latestVersion", webInterface.getCore().getUpdateChecker().getLatestVersion());
 120                                 templateContext.set("latestVersionTime", webInterface.getCore().getUpdateChecker().getLatestVersionDate());
 121                                 templateContext.set("notification", notification);
 122                                 ((TemplateNotification) notification).render(templateContext, notificationWriter);
 123                         } else {
 124                                 notification.render(notificationWriter);
 125                         }
 126                 } catch (IOException ioe1) {
 127                         /* StringWriter never throws, ignore. */
 128                 }
 129                 jsonNotification.put("text", notificationWriter.toString());
 130                 jsonNotification.put("createdTime", notification.getCreatedTime());
 131                 jsonNotification.put("lastUpdatedTime", notification.getLastUpdatedTime());
 132                 jsonNotification.put("dismissable", notification.isDismissable());
 133                 return jsonNotification;
 134         }
 135
 136         /**
 137          * Creates a JSON object that contains all options that are currently in
 138          * effect for the given Sone (or overall, if the given Sone is {@code null}
 139          * ).
 140          *
 141          * @param currentSone
 142          *            The current Sone (may be {@code null})
 143          * @return The current options
 144          */
 145         private static JsonNode createJsonOptions(Sone currentSone) {
 146                 ObjectNode options = new ObjectNode(instance);
 147                 if (currentSone != null) {
 148                         options.put("ShowNotification/NewSones", currentSone.getOptions().isShowNewSoneNotifications());
 149                         options.put("ShowNotification/NewPosts", currentSone.getOptions().isShowNewPostNotifications());
 150                         options.put("ShowNotification/NewReplies", currentSone.getOptions().isShowNewReplyNotifications());
 151                 }
 152                 return options;
 153         }
 154
 155 }