aboutsummaryrefslogtreecommitdiff
path: root/libdino/src/service/avatar_manager.vala
blob: 1c0a3b51201281d1ffba0ceefaed562df355e854 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
using Gdk;
using Gee;

using Xmpp;
using Dino.Entities;

namespace Dino {

public class AvatarManager : StreamInteractionModule, Object {
    public static ModuleIdentity<AvatarManager> IDENTITY = new ModuleIdentity<AvatarManager>("avatar_manager");
    public string id { get { return IDENTITY.id; } }

    public signal void received_avatar(Pixbuf avatar, Jid jid, Account account);

    private enum Source {
        USER_AVATARS,
        VCARD
    }

    private StreamInteractor stream_interactor;
    private Database db;
    private HashMap<Jid, string> user_avatars = new HashMap<Jid, string>(Jid.hash_func, Jid.equals_func);
    private HashMap<Jid, string> vcard_avatars = new HashMap<Jid, string>(Jid.hash_func, Jid.equals_func);
    private AvatarStorage avatar_storage = new AvatarStorage(get_storage_dir());
    private const int MAX_PIXEL = 192;

    public static void start(StreamInteractor stream_interactor, Database db) {
        AvatarManager m = new AvatarManager(stream_interactor, db);
        stream_interactor.add_module(m);
    }

    public static string get_storage_dir() {
        return Path.build_filename(Application.get_storage_dir(), "avatars");
    }

    private AvatarManager(StreamInteractor stream_interactor, Database db) {
        this.stream_interactor = stream_interactor;
        this.db = db;
        stream_interactor.account_added.connect(on_account_added);
        stream_interactor.module_manager.initialize_account_modules.connect(initialize_avatar_modules);
    }

    private void initialize_avatar_modules(Account account, ArrayList<Core.XmppStreamModule> modules) {
        modules.add(new Xep.UserAvatars.Module(avatar_storage));
        modules.add(new Xep.VCard.Module(avatar_storage));
    }

    public Pixbuf? get_avatar(Account account, Jid jid) {
        Jid jid_ = jid;
        if (!stream_interactor.get_module(MucManager.IDENTITY).is_groupchat_occupant(jid, account)) {
            jid_ = jid.bare_jid;
        }
        string? user_avatars_id = user_avatars[jid_];
        if (user_avatars_id != null) {
            return avatar_storage.get_image(user_avatars_id);
        }
        string? vcard_avatars_id = vcard_avatars[jid_];
        if (vcard_avatars_id != null) {
            return avatar_storage.get_image(vcard_avatars_id);
        }
        return null;
    }

    public void publish(Account account, string file) {
        try {
            Pixbuf pixbuf = new Pixbuf.from_file(file);
            if (pixbuf.width >= pixbuf.height && pixbuf.width > MAX_PIXEL) {
                int dest_height = (int) ((float) MAX_PIXEL / pixbuf.width * pixbuf.height);
                pixbuf = pixbuf.scale_simple(MAX_PIXEL, dest_height, InterpType.BILINEAR);
            } else if (pixbuf.height > pixbuf.width && pixbuf.width > MAX_PIXEL) {
                int dest_width = (int) ((float) MAX_PIXEL / pixbuf.height * pixbuf.width);
                pixbuf = pixbuf.scale_simple(dest_width, MAX_PIXEL, InterpType.BILINEAR);
            }
            uint8[] buffer;
            pixbuf.save_to_buffer(out buffer, "png");
            Core.XmppStream stream = stream_interactor.get_stream(account);
            if (stream != null) {
                stream.get_module(Xep.UserAvatars.Module.IDENTITY).publish_png(stream, buffer, pixbuf.width, pixbuf.height);
                on_user_avatar_received(account, account.bare_jid, Base64.encode(buffer));
            }
        } catch (Error e) {
            print("error " + e.message + "\n");
        }
    }

    private void on_account_added(Account account) {
        stream_interactor.module_manager.get_module(account, Xep.UserAvatars.Module.IDENTITY).received_avatar.connect((stream, jid, id) =>
            on_user_avatar_received(account, new Jid(jid), id)
        );
        stream_interactor.module_manager.get_module(account, Xep.VCard.Module.IDENTITY).received_avatar.connect((stream, jid, id) =>
            on_vcard_avatar_received(account, new Jid(jid), id)
        );

        user_avatars = db.get_avatar_hashes(Source.USER_AVATARS);
        foreach (Jid jid in user_avatars.keys) {
            on_user_avatar_received(account, jid, user_avatars[jid]);
        }
        vcard_avatars = db.get_avatar_hashes(Source.VCARD);
        foreach (Jid jid in vcard_avatars.keys) {
            on_vcard_avatar_received(account, jid, vcard_avatars[jid]);
        }
    }

    private void on_user_avatar_received(Account account, Jid jid, string id) {
        if (!user_avatars.has_key(jid) || user_avatars[jid] != id) {
            user_avatars[jid] = id;
            db.set_avatar_hash(jid, id, Source.USER_AVATARS);
        }
        Pixbuf? avatar = avatar_storage.get_image(id);
        if (avatar != null) {
            received_avatar(avatar, jid, account);
        }
    }

    private void on_vcard_avatar_received(Account account, Jid jid, string id) {
        if (!vcard_avatars.has_key(jid) || vcard_avatars[jid] != id) {
            vcard_avatars[jid] = id;
            if (!jid.is_full()) { // don't save muc avatars
                db.set_avatar_hash(jid, id, Source.VCARD);
            }
        }
        Pixbuf? avatar = avatar_storage.get_image(id);
        if (avatar != null) {
            received_avatar(avatar, jid, account);
        }
    }
}

}