76 lines
3.2 KiB
Vala
76 lines
3.2 KiB
Vala
using Gee;
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namespace Xmpp.Xep.ChatStateNotifications {
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private const string NS_URI = "http://jabber.org/protocol/chatstates";
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public const string STATE_ACTIVE = "active";
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public const string STATE_INACTIVE = "inactive";
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public const string STATE_GONE = "gone";
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public const string STATE_COMPOSING = "composing";
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public const string STATE_PAUSED = "paused";
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private const string[] STATES = { STATE_ACTIVE, STATE_INACTIVE, STATE_GONE, STATE_COMPOSING, STATE_PAUSED };
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public class Module : XmppStreamModule {
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public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0085_chat_state_notifications");
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public signal void chat_state_received(XmppStream stream, Jid jid, string state, MessageStanza stanza);
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private SendPipelineListener send_pipeline_listener = new SendPipelineListener();
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/**
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* "A message stanza that does not contain standard messaging content [...] SHOULD be a state other than <active/>" (0085, 5.6)
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*/
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public void send_state(XmppStream stream, Jid jid, string message_type, string state) {
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MessageStanza message = new MessageStanza() { to=jid, type_=message_type };
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message.stanza.put_node(new StanzaNode.build(state, NS_URI).add_self_xmlns());
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MessageProcessingHints.set_message_hint(message, MessageProcessingHints.HINT_NO_STORE);
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stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, message);
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}
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public override void attach(XmppStream stream) {
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stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
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stream.get_module(MessageModule.IDENTITY).send_pipeline.connect(send_pipeline_listener);
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stream.get_module(MessageModule.IDENTITY).received_message.connect(on_received_message);
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}
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public override void detach(XmppStream stream) {
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stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
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stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message);
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stream.get_module(MessageModule.IDENTITY).send_pipeline.disconnect(send_pipeline_listener);
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}
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public override string get_ns() { return NS_URI; }
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public override string get_id() { return IDENTITY.id; }
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private void on_received_message(XmppStream stream, MessageStanza message) {
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if (!message.is_error()) {
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Gee.List<StanzaNode> nodes = message.stanza.get_all_subnodes();
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foreach (StanzaNode node in nodes) {
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if (node.ns_uri == NS_URI && node.name in STATES) {
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chat_state_received(stream, message.from, node.name, message);
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}
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}
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}
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}
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}
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public class SendPipelineListener : StanzaListener<MessageStanza> {
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private string[] after_actions_const = {"MODIFY_BODY"};
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public override string action_group { get { return "ADD_NODES"; } }
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public override string[] after_actions { get { return after_actions_const; } }
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public override async bool run(XmppStream stream, MessageStanza message) {
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if (message.body == null) return false;
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if (message.type_ != MessageStanza.TYPE_CHAT) return false;
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message.stanza.put_node(new StanzaNode.build(STATE_ACTIVE, NS_URI).add_self_xmlns());
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return false;
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}
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}
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}
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