using Gee; namespace Xmpp.Xep.Pubsub { public const string NS_URI = "http://jabber.org/protocol/pubsub"; private const string NS_URI_EVENT = NS_URI + "#event"; private const string NS_URI_OWNER = NS_URI + "#owner"; public const string NS_URI_ERROR = NS_URI + "#errors"; public const string ACCESS_MODEL_AUTHORIZE = "authorize"; public const string ACCESS_MODEL_OPEN = "open"; public const string ACCESS_MODEL_PRESENCE = "presence"; public const string ACCESS_MODEL_ROSTER = "roster"; public const string ACCESS_MODEL_WHITELIST = "whitelist"; public class Module : XmppStreamModule { public static ModuleIdentity IDENTITY = new ModuleIdentity(NS_URI, "0060_pubsub_module"); private HashMap item_listeners = new HashMap(); private HashMap retract_listeners = new HashMap(); private HashMap delete_listeners = new HashMap(); public void add_filtered_notification(XmppStream stream, string node, owned ItemListenerDelegate.ResultFunc? item_listener, owned RetractListenerDelegate.ResultFunc? retract_listener, owned DeleteListenerDelegate.ResultFunc? delete_listener) { stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature_notify(stream, node); if (item_listener != null) { item_listeners[node] = new ItemListenerDelegate((owned)item_listener); } if (retract_listener != null) { retract_listeners[node] = new RetractListenerDelegate((owned)retract_listener); } if (delete_listener != null) { delete_listeners[node] = new DeleteListenerDelegate((owned)delete_listener); } } public void remove_filtered_notification(XmppStream stream, string node) { stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature_notify(stream, node); item_listeners.unset(node); retract_listeners.unset(node); } public async Gee.List? request_all(XmppStream stream, Jid jid, string node) { // TODO multiple nodes gehen auch Iq.Stanza request_iq = new Iq.Stanza.get(new StanzaNode.build("pubsub", NS_URI).add_self_xmlns().put_node(new StanzaNode.build("items", NS_URI).put_attribute("node", node))); request_iq.to = jid; Iq.Stanza iq_res = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, request_iq); StanzaNode event_node = iq_res.stanza.get_subnode("pubsub", NS_URI); if (event_node == null) return null; StanzaNode items_node = event_node.get_subnode("items", NS_URI); if (items_node == null) return null; return items_node.get_subnodes("item", NS_URI); } public delegate void OnResult(XmppStream stream, Jid jid, string? id, StanzaNode? node); public void request(XmppStream stream, Jid jid, string node, owned OnResult listener) { // TODO multiple nodes gehen auch Iq.Stanza request_iq = new Iq.Stanza.get(new StanzaNode.build("pubsub", NS_URI).add_self_xmlns().put_node(new StanzaNode.build("items", NS_URI).put_attribute("node", node))); request_iq.to = jid; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, request_iq, (stream, iq) => { StanzaNode event_node = iq.stanza.get_subnode("pubsub", NS_URI); StanzaNode items_node = event_node != null ? event_node.get_subnode("items", NS_URI) : null; StanzaNode item_node = items_node != null ? items_node.get_subnode("item", NS_URI) : null; string? id = item_node != null ? item_node.get_attribute("id", NS_URI) : null; listener(stream, iq.from, id, item_node != null ? item_node.sub_nodes[0] : null); }); } public async bool publish( XmppStream stream, Jid? jid, string node_id, string? item_id, StanzaNode content, PublishOptions? publish_options = null, bool try_reconfiguring = true ) { StanzaNode pubsub_node = new StanzaNode.build("pubsub", NS_URI).add_self_xmlns(); StanzaNode publish_node = new StanzaNode.build("publish", NS_URI).put_attribute("node", node_id); pubsub_node.put_node(publish_node); StanzaNode items_node = new StanzaNode.build("item", NS_URI); if (item_id != null) items_node.put_attribute("id", item_id); items_node.put_node(content); publish_node.put_node(items_node); // Send along our requirements for the node if (publish_options != null) { StanzaNode publish_options_node = new StanzaNode.build("publish-options", NS_URI); pubsub_node.put_node(publish_options_node); DataForms.DataForm data_form = new DataForms.DataForm(); DataForms.DataForm.HiddenField form_type_field = new DataForms.DataForm.HiddenField() { var="FORM_TYPE" }; form_type_field.set_value_string(NS_URI + "#publish-options"); data_form.add_field(form_type_field); foreach (string field_name in publish_options.settings.keys) { DataForms.DataForm.Field field = new DataForms.DataForm.Field() { var=field_name }; field.set_value_string(publish_options.settings[field_name]); data_form.add_field(field); } publish_options_node.put_node(data_form.get_submit_node()); } Iq.Stanza iq = new Iq.Stanza.set(pubsub_node); // If the node was configured differently before, reconfigure it to meet our requirements and try again Iq.Stanza iq_result = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq); if (iq_result.is_error()) { if (publish_options == null || !try_reconfiguring) return false; bool precondition_not_met = iq_result.get_error().error_node.get_subnode("precondition-not-met", NS_URI_ERROR) != null; if (precondition_not_met) { bool success = yield change_node_config(stream, jid, node_id, publish_options); if (!success) return false; return yield publish(stream, jid, node_id, item_id, content, publish_options, false); } } return true; } public async bool retract_item(XmppStream stream, Jid? jid, string node_id, string item_id) { StanzaNode pubsub_node = new StanzaNode.build("pubsub", NS_URI).add_self_xmlns() .put_node(new StanzaNode.build("retract", NS_URI).put_attribute("node", node_id).put_attribute("notify", "true") .put_node(new StanzaNode.build("item", NS_URI).put_attribute("id", item_id))); Iq.Stanza iq = new Iq.Stanza.set(pubsub_node); bool ok = true; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, (stream, result_iq) => { ok = !result_iq.is_error(); Idle.add(retract_item.callback); }); yield; return ok; } public void delete_node(XmppStream stream, Jid? jid, string node_id) { StanzaNode pubsub_node = new StanzaNode.build("pubsub", NS_URI_OWNER).add_self_xmlns(); StanzaNode publish_node = new StanzaNode.build("delete", NS_URI_OWNER).put_attribute("node", node_id); pubsub_node.put_node(publish_node); Iq.Stanza iq = new Iq.Stanza.set(pubsub_node); stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, null); } public async DataForms.DataForm? request_node_config(XmppStream stream, Jid? jid, string node_id) { StanzaNode pubsub_node = new StanzaNode.build("pubsub", NS_URI_OWNER).add_self_xmlns(); StanzaNode publish_node = new StanzaNode.build("configure", NS_URI_OWNER).put_attribute("node", node_id); pubsub_node.put_node(publish_node); Iq.Stanza iq = new Iq.Stanza.get(pubsub_node); Iq.Stanza result_iq = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq); StanzaNode? data_form_node = result_iq.stanza.get_deep_subnode(Pubsub.NS_URI_OWNER + ":pubsub", Pubsub.NS_URI_OWNER + ":configure", "jabber:x:data:x"); if (data_form_node == null) return null; return DataForms.DataForm.create_from_node(data_form_node); } public async bool submit_node_config(XmppStream stream, DataForms.DataForm data_form, string node_id) { StanzaNode submit_node = data_form.get_submit_node(); StanzaNode pubsub_node = new StanzaNode.build("pubsub", Pubsub.NS_URI_OWNER).add_self_xmlns(); StanzaNode publish_node = new StanzaNode.build("configure", Pubsub.NS_URI_OWNER).put_attribute("node", node_id); pubsub_node.put_node(publish_node); publish_node.put_node(submit_node); Iq.Stanza iq = new Iq.Stanza.set(pubsub_node); Iq.Stanza iq_result = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq); return !iq_result.is_error(); } public override void attach(XmppStream stream) { stream.get_module(MessageModule.IDENTITY).received_message.connect(on_received_message); } public override void detach(XmppStream stream) { stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message); } public override string get_ns() { return NS_URI; } public override string get_id() { return IDENTITY.id; } private void on_received_message(XmppStream stream, MessageStanza message) { StanzaNode event_node = message.stanza.get_subnode("event", NS_URI_EVENT); if (event_node == null) return; if (!message.from.is_bare()) { warning("Got a PEP message from a full JID (%s), ignoring.", message.from.to_string()); return; } StanzaNode items_node = event_node.get_subnode("items", NS_URI_EVENT); if (items_node != null) { string node = items_node.get_attribute("node", NS_URI_EVENT); StanzaNode? item_node = items_node.get_subnode("item", NS_URI_EVENT); if (item_node != null) { string id = item_node.get_attribute("id", NS_URI_EVENT); if (item_listeners.has_key(node)) { item_listeners[node].on_result(stream, message.from, id, item_node.sub_nodes[0]); } } StanzaNode? retract_node = items_node.get_subnode("retract", NS_URI_EVENT); if (retract_node != null) { string id = retract_node.get_attribute("id", NS_URI_EVENT); if (retract_listeners.has_key(node)) { retract_listeners[node].on_result(stream, message.from, id); } } } StanzaNode? delete_node = event_node.get_subnode("delete", NS_URI_EVENT); if (delete_node != null) { string node = delete_node.get_attribute("node", NS_URI_EVENT); if (delete_listeners.has_key(node)) { delete_listeners[node].on_result(stream, message.from); } } } private async bool change_node_config(XmppStream stream, Jid jid, string node, PublishOptions publish_options) { DataForms.DataForm? data_form = yield stream.get_module(Pubsub.Module.IDENTITY).request_node_config(stream, null, node); if (data_form == null) return false; foreach (DataForms.DataForm.Field field in data_form.fields) { if (publish_options.settings.has_key(field.var) && publish_options.settings[field.var] != field.get_value_string()) { field.set_value_string(publish_options.settings[field.var]); } } return yield stream.get_module(Pubsub.Module.IDENTITY).submit_node_config(stream, data_form, node); } } public class PublishOptions { public HashMap settings = new HashMap(); public PublishOptions set_persist_items(bool persist) { settings["pubsub#persist_items"] = persist.to_string(); return this; } public PublishOptions set_max_items(string max) { settings["pubsub#max_items"] = max; return this; } public PublishOptions set_send_last_published_item(string send) { settings["pubsub#send_last_published_item"] = send.to_string(); return this; } public PublishOptions set_access_model(string model) { settings["pubsub#access_model"] = model; return this; } } public class ItemListenerDelegate { public delegate void ResultFunc(XmppStream stream, Jid jid, string id, StanzaNode? node); public ResultFunc on_result { get; private owned set; } public ItemListenerDelegate(owned ResultFunc on_result) { this.on_result = (owned) on_result; } } public class RetractListenerDelegate { public delegate void ResultFunc(XmppStream stream, Jid jid, string id); public ResultFunc on_result { get; private owned set; } public RetractListenerDelegate(owned ResultFunc on_result) { this.on_result = (owned) on_result; } } public class DeleteListenerDelegate { public delegate void ResultFunc(XmppStream stream, Jid jid); public ResultFunc on_result { get; private owned set; } public DeleteListenerDelegate(owned ResultFunc on_result) { this.on_result = (owned) on_result; } } }