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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
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 HashMap<string, Pixbuf> cached_pixbuf = new HashMap<string, Pixbuf>();
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(Dino.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<XmppStreamModule> modules) {
modules.add(new Xep.UserAvatars.Module(avatar_storage));
modules.add(new Xep.VCard.Module(avatar_storage));
}
private async Pixbuf? get_avatar_by_hash(string hash) {
if (cached_pixbuf.has_key(hash)) {
return cached_pixbuf[hash];
}
Pixbuf? image = yield avatar_storage.get_image(hash);
if (image != null) {
cached_pixbuf[hash] = image;
} else {
db.avatar.delete().with(db.avatar.hash, "=", hash).perform();
}
return image;
}
public bool has_avatar(Account account, Jid jid) {
string? hash = get_avatar_hash(account, jid);
if (hash != null) {
if (cached_pixbuf.has_key(hash)) {
return true;
}
return avatar_storage.has_image(hash);
}
return false;
}
public async Pixbuf? get_avatar(Account account, Jid jid) {
string? hash = get_avatar_hash(account, jid);
if (hash != null) {
return yield get_avatar_by_hash(hash);
}
return null;
}
private string? get_avatar_hash(Account account, Jid jid) {
string? user_avatars_id = user_avatars[jid];
if (user_avatars_id != null) {
return user_avatars_id;
}
string? vcard_avatars_id = vcard_avatars[jid];
if (vcard_avatars_id != null) {
return 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");
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) {
warning(e.message);
}
}
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, jid, id)
);
stream_interactor.module_manager.get_module(account, Xep.VCard.Module.IDENTITY).received_avatar.connect((stream, jid, id) =>
on_vcard_avatar_received(account, jid, id)
);
foreach (var entry in db.get_avatar_hashes(Source.USER_AVATARS).entries) {
on_user_avatar_received(account, entry.key, entry.value);
}
foreach (var entry in db.get_avatar_hashes(Source.VCARD).entries) {
// FIXME: remove. temporary to remove falsely saved avatars.
if (stream_interactor.get_module(MucManager.IDENTITY).is_groupchat(entry.key, account)) {
db.avatar.delete().with(db.avatar.jid, "=", entry.key.to_string()).perform();
continue;
}
on_vcard_avatar_received(account, entry.key, entry.value);
}
}
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);
}
avatar_storage.get_image.begin(id, (obj, res) => {
Pixbuf? avatar = avatar_storage.get_image.end(res);
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 occupant avatars
db.set_avatar_hash(jid, id, Source.VCARD);
}
}
avatar_storage.get_image.begin(id, (obj, res) => {
Pixbuf? avatar = avatar_storage.get_image.end(res);
if (avatar != null) {
received_avatar(avatar, jid, account);
}
});
}
}
}
|
