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moxxy/lib/xmpp/presence.dart

159 lines
4.1 KiB
Dart

import 'package:moxxyv2/xmpp/connection.dart';
import 'package:moxxyv2/xmpp/events.dart';
import 'package:moxxyv2/xmpp/jid.dart';
import 'package:moxxyv2/xmpp/managers/base.dart';
import 'package:moxxyv2/xmpp/managers/data.dart';
import 'package:moxxyv2/xmpp/managers/handlers.dart';
import 'package:moxxyv2/xmpp/managers/namespaces.dart';
import 'package:moxxyv2/xmpp/namespaces.dart';
import 'package:moxxyv2/xmpp/stanza.dart';
import 'package:moxxyv2/xmpp/stringxml.dart';
import 'package:moxxyv2/xmpp/xeps/xep_0030/helpers.dart';
import 'package:moxxyv2/xmpp/xeps/xep_0030/xep_0030.dart';
import 'package:moxxyv2/xmpp/xeps/xep_0115.dart';
import 'package:moxxyv2/xmpp/xeps/xep_0414.dart';
class PresenceManager extends XmppManagerBase {
PresenceManager() : _capabilityHash = null, super();
String? _capabilityHash;
@override
String getId() => presenceManager;
@override
String getName() => 'PresenceManager';
@override
List<StanzaHandler> getIncomingStanzaHandlers() => [
StanzaHandler(
stanzaTag: 'presence',
callback: _onPresence,
)
];
@override
List<String> getDiscoFeatures() => [ capsXmlns ];
@override
Future<bool> isSupported() async => true;
Future<StanzaHandlerData> _onPresence(Stanza presence, StanzaHandlerData state) async {
final attrs = getAttributes();
switch (presence.type) {
case 'subscribe':
case 'subscribed': {
attrs.sendEvent(
SubscriptionRequestReceivedEvent(from: JID.fromString(presence.from!)),
);
return state.copyWith(done: true);
}
default: break;
}
if (presence.from != null) {
logger.finest("Received presence from '${presence.from}'");
getAttributes().sendEvent(PresenceReceivedEvent(JID.fromString(presence.from!), presence));
return state.copyWith(done: true);
}
return state;
}
/// Returns the capability hash.
Future<String> getCapabilityHash() async {
final manager = getAttributes().getManagerById(discoManager)! as DiscoManager;
_capabilityHash ??= await calculateCapabilityHash(
DiscoInfo(
manager.getRegisteredDiscoFeatures(),
manager.getIdentities(),
[],
getAttributes().getFullJID(),
),
getHashByName('sha-1')!,
);
return _capabilityHash!;
}
/// Sends the initial presence to enable receiving messages.
Future<void> sendInitialPresence() async {
final attrs = getAttributes();
attrs.sendNonza(
Stanza.presence(
from: attrs.getFullJID().toString(),
children: [
XMLNode(
tag: 'show',
text: 'chat',
),
XMLNode.xmlns(
tag: 'c',
xmlns: capsXmlns,
attributes: {
'hash': 'sha-1',
'node': 'http://moxxy.im',
'ver': await getCapabilityHash()
},
)
],
),
);
}
/// Send an unavailable presence with no 'to' attribute.
void sendUnavailablePresence() {
getAttributes().sendStanza(
Stanza.presence(
type: 'unavailable',
),
addFrom: StanzaFromType.full,
);
}
/// Sends a subscription request to [to].
void sendSubscriptionRequest(String to) {
getAttributes().sendStanza(
Stanza.presence(
type: 'subscribe',
to: to,
),
addFrom: StanzaFromType.none,
);
}
/// Sends an unsubscription request to [to].
void sendUnsubscriptionRequest(String to) {
getAttributes().sendStanza(
Stanza.presence(
type: 'unsubscribe',
to: to,
),
addFrom: StanzaFromType.none,
);
}
/// Accept a presence subscription request for [to].
void sendSubscriptionRequestApproval(String to) {
getAttributes().sendStanza(
Stanza.presence(
type: 'subscribed',
to: to,
),
addFrom: StanzaFromType.none,
);
}
/// Reject a presence subscription request for [to].
void sendSubscriptionRequestRejection(String to) {
getAttributes().sendStanza(
Stanza.presence(
type: 'unsubscribed',
to: to,
),
addFrom: StanzaFromType.none,
);
}
}