src/main/java/net/pterodactylus/sone/template/ProfileAccessor.java

   1 /*
   2  * Sone - ProfileAccessor.java - Copyright © 2011–2013 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.template;
  19
  20 import net.pterodactylus.sone.core.Core;
  21 import net.pterodactylus.sone.data.Profile;
  22 import net.pterodactylus.sone.data.Sone;
  23 import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
  24 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  25 import net.pterodactylus.sone.freenet.wot.Trust;
  26 import net.pterodactylus.util.template.Accessor;
  27 import net.pterodactylus.util.template.ReflectionAccessor;
  28 import net.pterodactylus.util.template.TemplateContext;
  29
  30 /**
  31  * {@link Accessor} for {@link Profile} objects that overwrites the original
  32  * “avatar” member to include checks for whether the custom avatar should
  33  * actually be shown.
  34  *
  35  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  36  */
  37 public class ProfileAccessor extends ReflectionAccessor {
  38
  39         /** The core. */
  40         private final Core core;
  41
  42         /**
  43          * Creates a new profile accessor.
  44          *
  45          * @param core
  46          *            The Sone core
  47          */
  48         public ProfileAccessor(Core core) {
  49                 this.core = core;
  50         }
  51
  52         @Override
  53         public Object get(TemplateContext templateContext, Object object, String member) {
  54                 Profile profile = (Profile) object;
  55                 if ("avatar".equals(member)) {
  56                         Sone currentSone = (Sone) templateContext.get("currentSone");
  57                         if (currentSone == null) {
  58                                 /* not logged in? don’t show custom avatars, then. */
  59                                 return null;
  60                         }
  61                         String avatarId = profile.getAvatar();
  62                         if (avatarId == null) {
  63                                 return null;
  64                         }
  65                         if (!core.getImage(avatarId).isPresent()) {
  66                                 /* avatar ID but no matching image? show nothing. */
  67                                 return null;
  68                         }
  69                         if (!avatarImageBelongsToTheSameSoneAsTheProfile(profile, avatarId)) {
  70                                 return null;
  71                         }
  72                         Sone remoteSone = profile.getSone();
  73                         if (remoteSone.isLocal()) {
  74                                 /* always show your own avatars. */
  75                                 return avatarId;
  76                         }
  77                         ShowCustomAvatars showCustomAvatars = currentSone.getOptions().<ShowCustomAvatars> getEnumOption("ShowCustomAvatars").get();
  78                         if (showCustomAvatars == ShowCustomAvatars.NEVER) {
  79                                 return null;
  80                         }
  81                         if (showCustomAvatars == ShowCustomAvatars.ALWAYS) {
  82                                 return avatarId;
  83                         }
  84                         if (showCustomAvatars == ShowCustomAvatars.FOLLOWED) {
  85                                 return currentSone.hasFriend(remoteSone.getId()) ? avatarId : null;
  86                         }
  87                         Trust trust = remoteSone.getIdentity().getTrust((OwnIdentity) currentSone.getIdentity());
  88                         if (trust == null) {
  89                                 return null;
  90                         }
  91                         if ((showCustomAvatars == ShowCustomAvatars.MANUALLY_TRUSTED) && (trust.getExplicit() != null) && (trust.getExplicit() > 0)) {
  92                                 return avatarId;
  93                         }
  94                         if ((showCustomAvatars == ShowCustomAvatars.TRUSTED) && (((trust.getExplicit() != null) && (trust.getExplicit() > 0)) || ((trust.getImplicit() != null) && (trust.getImplicit() > 0)))) {
  95                                 return avatarId;
  96                         }
  97                         return null;
  98                 }
  99                 return super.get(templateContext, object, member);
 100         }
 101
 102         private boolean avatarImageBelongsToTheSameSoneAsTheProfile(Profile profile, String avatarId) {
 103                 return core.getImage(avatarId).get().getSone().equals(profile.getSone());
 104         }
 105
 106 }