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
|
using Gee;
namespace Xmpp.Xep.ServiceDiscovery {
private const string NS_URI = "http://jabber.org/protocol/disco";
public const string NS_URI_INFO = NS_URI + "#info";
public const string NS_URI_ITEMS = NS_URI + "#items";
public class Module : XmppStreamModule, Iq.Handler {
public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0030_service_discovery_module");
private HashMap<Jid, Future<InfoResult?>> active_info_requests = new HashMap<Jid, Future<InfoResult?>>(Jid.hash_func, Jid.equals_func);
public Identity own_identity;
public Module.with_identity(string category, string type, string? name = null) {
own_identity = new Identity(category, type, name);
}
public void add_feature(XmppStream stream, string feature) {
stream.get_flag(Flag.IDENTITY).add_own_feature(feature);
}
public void remove_feature(XmppStream stream, string feature) {
stream.get_flag(Flag.IDENTITY).remove_own_feature(feature);
}
public void add_feature_notify(XmppStream stream, string feature) {
add_feature(stream, feature + "+notify");
}
public void remove_feature_notify(XmppStream stream, string feature) {
remove_feature(stream, feature + "+notify");
}
public void add_identity(XmppStream stream, Identity identity) {
stream.get_flag(Flag.IDENTITY).add_own_identity(identity);
}
public void remove_identity(XmppStream stream, Identity identity) {
stream.get_flag(Flag.IDENTITY).remove_own_identity(identity);
}
public async bool has_entity_feature(XmppStream stream, Jid jid, string feature) {
Flag flag = stream.get_flag(Flag.IDENTITY);
if (flag.has_entity_feature(jid, feature) == null) {
InfoResult? info_result = yield request_info(stream, jid);
stream.get_flag(Flag.IDENTITY).set_entity_features(jid, info_result != null ? info_result.features : null);
stream.get_flag(Flag.IDENTITY).set_entity_identities(jid, info_result != null ? info_result.identities : null);
}
return flag.has_entity_feature(jid, feature) ?? false;
}
public async Gee.Set<Identity>? get_entity_identities(XmppStream stream, Jid jid) {
Flag flag = stream.get_flag(Flag.IDENTITY);
if (flag.get_entity_identities(jid) == null) {
InfoResult? info_result = yield request_info(stream, jid);
stream.get_flag(Flag.IDENTITY).set_entity_features(info_result.iq.from, info_result != null ? info_result.features : null);
stream.get_flag(Flag.IDENTITY).set_entity_identities(info_result.iq.from, info_result != null ? info_result.identities : null);
}
return flag.get_entity_identities(jid);
}
public async InfoResult? request_info(XmppStream stream, Jid jid) {
var future = active_info_requests[jid];
if (future == null) {
var promise = new Promise<InfoResult?>();
future = promise.future;
active_info_requests[jid] = future;
Iq.Stanza iq = new Iq.Stanza.get(new StanzaNode.build("query", NS_URI_INFO).add_self_xmlns()) { to=jid };
Iq.Stanza iq_response = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq);
InfoResult? result = InfoResult.create_from_iq(iq_response);
promise.set_value(result);
active_info_requests.unset(jid);
}
try {
InfoResult? res = yield future.wait_async();
return res;
} catch (FutureError error) {
warning("Future error when waiting for info request result: %s", error.message);
return null;
}
}
public async ItemsResult? request_items(XmppStream stream, Jid jid) {
StanzaNode query_node = new StanzaNode.build("query", NS_URI_ITEMS).add_self_xmlns();
Iq.Stanza iq = new Iq.Stanza.get(query_node) { to=jid };
Iq.Stanza iq_result = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq);
ItemsResult? result = ItemsResult.create_from_iq(iq_result);
stream.get_flag(Flag.IDENTITY).set_entity_items(iq_result.from, result != null ? result.items : null);
return result;
}
public async void on_iq_get(XmppStream stream, Iq.Stanza iq) {
StanzaNode? query_node = iq.stanza.get_subnode("query", NS_URI_INFO);
if (query_node != null) {
send_query_result(stream, iq);
}
}
public override void attach(XmppStream stream) {
stream.add_flag(new Flag());
add_identity(stream, own_identity);
stream.get_module(Iq.Module.IDENTITY).register_for_namespace(NS_URI_INFO, this);
add_feature(stream, NS_URI_INFO);
}
public override void detach(XmppStream stream) {
remove_identity(stream, own_identity);
stream.get_module(Iq.Module.IDENTITY).unregister_from_namespace(NS_URI_INFO, this);
remove_feature(stream, NS_URI_INFO);
}
public static void require(XmppStream stream) {
if (stream.get_module(IDENTITY) == null) stream.add_module(new ServiceDiscovery.Module());
}
public override string get_ns() { return NS_URI; }
public override string get_id() { return IDENTITY.id; }
private void send_query_result(XmppStream stream, Iq.Stanza iq_request) {
InfoResult query_result = new ServiceDiscovery.InfoResult(iq_request);
query_result.features = stream.get_flag(Flag.IDENTITY).own_features;
query_result.identities = stream.get_flag(Flag.IDENTITY).own_identities;
stream.get_module(Iq.Module.IDENTITY).send_iq(stream, query_result.iq);
}
}
}
|
