using Gee; namespace Xmpp.Xep.Reactions { public const string NS_URI = "urn:xmpp:reactions:0"; public class Module : XmppStreamModule { public static ModuleIdentity IDENTITY = new ModuleIdentity(NS_URI, "reactions"); public signal void received_reactions(XmppStream stream, Jid from_jid, string message_id, Gee.List reactions, MessageStanza stanza); private ReceivedPipelineListener received_pipeline_listener = new ReceivedPipelineListener(); public async void send_reaction(XmppStream stream, Jid jid, string stanza_type, string message_id, Gee.List reactions) throws SendError { StanzaNode reactions_node = new StanzaNode.build("reactions", NS_URI).add_self_xmlns(); reactions_node.put_attribute("id", message_id); foreach (string reaction in reactions) { StanzaNode reaction_node = new StanzaNode.build("reaction", NS_URI); reaction_node.put_node(new StanzaNode.text(reaction)); reactions_node.put_node(reaction_node); } MessageStanza message = new MessageStanza() { to=jid, type_=stanza_type }; message.stanza.put_node(reactions_node); MessageProcessingHints.set_message_hint(message, MessageProcessingHints.HINT_STORE); yield stream.get_module(MessageModule.IDENTITY).send_message(stream, message); } public override void attach(XmppStream stream) { stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI); stream.get_module(MessageModule.IDENTITY).received_pipeline.connect(received_pipeline_listener); } public override void detach(XmppStream stream) { stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI); stream.get_module(MessageModule.IDENTITY).received_pipeline.disconnect(received_pipeline_listener); } public override string get_ns() { return NS_URI; } public override string get_id() { return IDENTITY.id; } } public class ReceivedPipelineListener : StanzaListener { private const string[] after_actions_const = {"EXTRACT_MESSAGE_2"}; public override string action_group { get { return ""; } } public override string[] after_actions { get { return after_actions_const; } } public override async bool run(XmppStream stream, MessageStanza message) { StanzaNode? reactions_node = message.stanza.get_subnode("reactions", NS_URI); if (reactions_node == null) return false; string? id_attribute = reactions_node.get_attribute("id"); if (id_attribute == null) return false; Gee.List reactions = new ArrayList(); foreach (StanzaNode reaction_node in reactions_node.get_subnodes("reaction", NS_URI)) { string? reaction = reaction_node.get_string_content(); if (reaction == null) return false; if (!reactions.contains(reaction)) { reactions.add(reaction); } } stream.get_module(Module.IDENTITY).received_reactions(stream, message.from, id_attribute, reactions, message); return true; } } }