Throw exception on invalid replies.
[Sone.git] / 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 }