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