using Gee; using Xmpp.Core; namespace Xmpp.Xep.Muc { private const string NS_URI = "http://jabber.org/protocol/muc"; private const string NS_URI_ADMIN = NS_URI + "#admin"; private const string NS_URI_OWNER = NS_URI + "#owner"; private const string NS_URI_USER = NS_URI + "#user"; public enum MucEnterError { NONE, PASSWORD_REQUIRED, BANNED, ROOM_DOESNT_EXIST, CREATION_RESTRICTED, USE_RESERVED_ROOMNICK, NOT_IN_MEMBER_LIST, NICK_CONFLICT, OCCUPANT_LIMIT_REACHED, } public enum Affiliation { ADMIN, MEMBER, NONE, OUTCAST, OWNER } public enum Role { MODERATOR, NONE, PARTICIPANT, VISITOR } public enum Feature { REGISTER, ROOMCONFIG, ROOMINFO, HIDDEN, MEMBERS_ONLY, MODERATED, NON_ANONYMOUS, OPEN, PASSWORD_PROTECTED, PERSISTENT, PUBLIC, ROOMS, SEMI_ANONYMOUS, TEMPORARY, UNMODERATED, UNSECURED } public class Module : XmppStreamModule { public static ModuleIdentity IDENTITY = new ModuleIdentity(NS_URI, "0045_muc_module"); public signal void received_occupant_affiliation(XmppStream stream, string jid, Affiliation? affiliation); public signal void received_occupant_jid(XmppStream stream, string jid, string? real_jid); public signal void received_occupant_role(XmppStream stream, string jid, Role? role); public signal void subject_set(XmppStream stream, string subject, string jid); public signal void room_configuration_changed(XmppStream stream, string jid, StatusCode code); public signal void room_entered(XmppStream stream, string jid, string nick); public signal void room_enter_error(XmppStream stream, string jid, MucEnterError? error); // TODO "?" shoudln't be necessary (vala bug), remove someday public signal void self_removed_from_room(XmppStream stream, string jid, StatusCode code); public signal void removed_from_room(XmppStream stream, string jid, StatusCode? code); public void enter(XmppStream stream, string bare_jid, string nick, string? password, string? history_since) { Presence.Stanza presence = new Presence.Stanza(); presence.to = bare_jid + "/" + nick; StanzaNode x_node = new StanzaNode.build("x", NS_URI).add_self_xmlns(); if (password != null) { x_node.put_node(new StanzaNode.build("password", NS_URI).put_node(new StanzaNode.text(password))); } if (history_since != null) { StanzaNode history_node = new StanzaNode.build("history", NS_URI); history_node.set_attribute("since", history_since); x_node.put_node(history_node); } presence.stanza.put_node(x_node); stream.get_flag(Flag.IDENTITY).start_muc_enter(bare_jid, presence.id); query_room_info(stream, bare_jid); stream.get_module(Presence.Module.IDENTITY).send_presence(stream, presence); } public void exit(XmppStream stream, string jid) { string nick = stream.get_flag(Flag.IDENTITY).get_muc_nick(jid); Presence.Stanza presence = new Presence.Stanza(); presence.to = jid + "/" + nick; presence.type_ = Presence.Stanza.TYPE_UNAVAILABLE; stream.get_module(Presence.Module.IDENTITY).send_presence(stream, presence); } public void change_subject(XmppStream stream, string jid, string subject) { Message.Stanza message = new Message.Stanza(); message.to = jid; message.type_ = Message.Stanza.TYPE_GROUPCHAT; message.stanza.put_node((new StanzaNode.build("subject")).put_node(new StanzaNode.text(subject))); stream.get_module(Message.Module.IDENTITY).send_message(stream, message); } public void change_nick(XmppStream stream, string jid, string new_nick) { Presence.Stanza presence = new Presence.Stanza(); presence.to = jid + "/" + new_nick; stream.get_module(Presence.Module.IDENTITY).send_presence(stream, presence); } public void invite(XmppStream stream, string to_muc, string jid) { Message.Stanza message = new Message.Stanza(); message.to = to_muc; StanzaNode invite_node = new StanzaNode.build("x", NS_URI_USER).add_self_xmlns() .put_node(new StanzaNode.build("invite", NS_URI_USER).put_attribute("to", jid)); message.stanza.put_node(invite_node); stream.get_module(Message.Module.IDENTITY).send_message(stream, message); } public void kick(XmppStream stream, string jid, string nick) { change_role(stream, jid, nick, "none"); } /* XEP 0046: "A user cannot be kicked by a moderator with a lower affiliation." (XEP 0045 8.2) */ public bool kick_possible(XmppStream stream, string occupant) { string muc_jid = get_bare_jid(occupant); Flag flag = stream.get_flag(Flag.IDENTITY); string own_nick = flag.get_muc_nick(muc_jid); Affiliation my_affiliation = flag.get_affiliation(muc_jid, muc_jid + "/" + own_nick); Affiliation other_affiliation = flag.get_affiliation(muc_jid, occupant); switch (my_affiliation) { case Affiliation.MEMBER: if (other_affiliation == Affiliation.ADMIN || other_affiliation == Affiliation.OWNER) return false; break; case Affiliation.ADMIN: if (other_affiliation == Affiliation.OWNER) return false; break; } return true; } public delegate void OnConfigFormResult(XmppStream stream, string jid, DataForms.DataForm data_form); public void get_config_form(XmppStream stream, string jid, owned OnConfigFormResult listener) { Iq.Stanza get_iq = new Iq.Stanza.get(new StanzaNode.build("query", NS_URI_OWNER).add_self_xmlns()) { to=jid }; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, get_iq, (stream, form_iq) => { StanzaNode? x_node = form_iq.stanza.get_deep_subnode(NS_URI_OWNER + ":query", DataForms.NS_URI + ":x"); if (x_node != null) { DataForms.DataForm data_form = DataForms.DataForm.create(stream, x_node, (stream, node) => { StanzaNode stanza_node = new StanzaNode.build("query", NS_URI_OWNER); stanza_node.add_self_xmlns().put_node(node); Iq.Stanza set_iq = new Iq.Stanza.set(stanza_node); set_iq.to = form_iq.from; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, set_iq); }); listener(stream, form_iq.from, data_form); } }); } public override void attach(XmppStream stream) { stream.add_flag(new Muc.Flag()); stream.get_module(Message.Module.IDENTITY).received_message.connect(on_received_message); stream.get_module(Presence.Module.IDENTITY).received_presence.connect(on_received_presence); stream.get_module(Presence.Module.IDENTITY).received_available.connect(on_received_available); stream.get_module(Presence.Module.IDENTITY).received_unavailable.connect(on_received_unavailable); if (stream.get_module(ServiceDiscovery.Module.IDENTITY) != null) { stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI); } room_entered.connect((stream, jid, nick) => { query_affiliation(stream, jid, "member", null); query_affiliation(stream, jid, "admin", null); query_affiliation(stream, jid, "owner", null); }); } public override void detach(XmppStream stream) { stream.get_module(Message.Module.IDENTITY).received_message.disconnect(on_received_message); stream.get_module(Presence.Module.IDENTITY).received_presence.disconnect(on_received_presence); stream.get_module(Presence.Module.IDENTITY).received_available.disconnect(on_received_available); stream.get_module(Presence.Module.IDENTITY).received_unavailable.disconnect(on_received_unavailable); } public override string get_ns() { return NS_URI; } public override string get_id() { return IDENTITY.id; } private void change_role(XmppStream stream, string jid, string nick, string new_role) { StanzaNode query = new StanzaNode.build("query", NS_URI_ADMIN).add_self_xmlns(); query.put_node(new StanzaNode.build("item", NS_URI_ADMIN).put_attribute("nick", nick, NS_URI_ADMIN).put_attribute("role", new_role, NS_URI_ADMIN)); Iq.Stanza iq = new Iq.Stanza.set(query); iq.to = jid; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq); } private void on_received_message(XmppStream stream, Message.Stanza message) { if (message.type_ == Message.Stanza.TYPE_GROUPCHAT) { StanzaNode? subject_node = message.stanza.get_subnode("subject"); if (subject_node != null) { string subject = subject_node.get_string_content(); stream.get_flag(Flag.IDENTITY).set_muc_subject(message.from, subject); subject_set(stream, subject, message.from); } } } private void on_received_presence(XmppStream stream, Presence.Stanza presence) { Flag flag = stream.get_flag(Flag.IDENTITY); if (presence.is_error() && flag.is_muc_enter_outstanding() && flag.is_occupant(presence.from)) { string bare_jid = get_bare_jid(presence.from); ErrorStanza? error_stanza = presence.get_error(); if (flag.get_enter_id(bare_jid) == presence.id) { MucEnterError error = MucEnterError.NONE; switch (error_stanza.condition) { case ErrorStanza.CONDITION_NOT_AUTHORIZED: if (ErrorStanza.TYPE_AUTH == error_stanza.type_) error = MucEnterError.PASSWORD_REQUIRED; break; case ErrorStanza.CONDITION_REGISTRATION_REQUIRED: if (ErrorStanza.TYPE_AUTH == error_stanza.type_) error = MucEnterError.NOT_IN_MEMBER_LIST; break; case ErrorStanza.CONDITION_FORBIDDEN: if (ErrorStanza.TYPE_AUTH == error_stanza.type_) error = MucEnterError.BANNED; break; case ErrorStanza.CONDITION_SERVICE_UNAVAILABLE: if (ErrorStanza.TYPE_WAIT == error_stanza.type_) error = MucEnterError.OCCUPANT_LIMIT_REACHED; break; case ErrorStanza.CONDITION_ITEM_NOT_FOUND: if (ErrorStanza.TYPE_CANCEL == error_stanza.type_) error = MucEnterError.ROOM_DOESNT_EXIST; break; case ErrorStanza.CONDITION_CONFLICT: if (ErrorStanza.TYPE_CANCEL == error_stanza.type_) error = MucEnterError.NICK_CONFLICT; break; case ErrorStanza.CONDITION_NOT_ALLOWED: if (ErrorStanza.TYPE_CANCEL == error_stanza.type_) error = MucEnterError.CREATION_RESTRICTED; break; case ErrorStanza.CONDITION_NOT_ACCEPTABLE: if (ErrorStanza.TYPE_CANCEL == error_stanza.type_) error = MucEnterError.USE_RESERVED_ROOMNICK; break; } if (error != MucEnterError.NONE) room_enter_error(stream, bare_jid, error); flag.finish_muc_enter(bare_jid); } } } private void on_received_available(XmppStream stream, Presence.Stanza presence) { Flag flag = stream.get_flag(Flag.IDENTITY); if (flag.is_occupant(presence.from)) { StanzaNode? x_node = presence.stanza.get_subnode("x", NS_URI_USER); if (x_node != null) { ArrayList status_codes = get_status_codes(x_node); if (status_codes.contains(StatusCode.SELF_PRESENCE)) { string bare_jid = get_bare_jid(presence.from); if (flag.get_enter_id(bare_jid) != null) { room_entered(stream, bare_jid, get_resource_part(presence.from)); flag.finish_muc_enter(bare_jid, get_resource_part(presence.from)); } } string? affiliation_str = x_node.get_deep_attribute("item", "affiliation"); if (affiliation_str != null) { Affiliation affiliation = parse_affiliation(affiliation_str); flag.set_affiliation(get_bare_jid(presence.from), presence.from, affiliation); received_occupant_affiliation(stream, presence.from, affiliation); } string? jid = x_node.get_deep_attribute("item", "jid"); if (jid != null) { flag.set_real_jid(presence.from, jid); received_occupant_jid(stream, presence.from, jid); } string? role_str = x_node.get_deep_attribute("item", "role"); if (role_str != null) { Role role = parse_role(role_str); flag.set_occupant_role(presence.from, role); received_occupant_role(stream, presence.from, role); } } } } private void on_received_unavailable(XmppStream stream, Presence.Stanza presence) { Flag flag = stream.get_flag(Flag.IDENTITY); if (!flag.is_occupant(presence.from)) return; StanzaNode? x_node = presence.stanza.get_subnode("x", NS_URI_USER); if (x_node == null) return; ArrayList status_codes = get_status_codes(x_node); if (StatusCode.SELF_PRESENCE in status_codes) { flag.remove_occupant_info(presence.from); } foreach (StatusCode code in USER_REMOVED_CODES) { if (code in status_codes) { if (StatusCode.SELF_PRESENCE in status_codes) { flag.left_muc(stream, get_bare_jid(presence.from)); self_removed_from_room(stream, presence.from, code); Presence.Flag presence_flag = stream.get_flag(Presence.Flag.IDENTITY); presence_flag.remove_presence(get_bare_jid(presence.from)); } else { removed_from_room(stream, presence.from, code); } } } } private void query_room_info(XmppStream stream, string jid) { stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, jid, (stream, query_result) => { Gee.List features = new ArrayList(); if (query_result != null) { foreach (ServiceDiscovery.Identity identity in query_result.identities) { if (identity.category == "conference") { stream.get_flag(Flag.IDENTITY).set_room_name(jid, identity.name); } } foreach (string feature in query_result.features) { Feature? parsed = null; switch (feature) { case "http://jabber.org/protocol/muc#register": parsed = Feature.REGISTER; break; case "http://jabber.org/protocol/muc#roomconfig": parsed = Feature.ROOMCONFIG; break; case "http://jabber.org/protocol/muc#roominfo": parsed = Feature.ROOMINFO; break; case "muc_hidden": parsed = Feature.HIDDEN; break; case "muc_membersonly": parsed = Feature.MEMBERS_ONLY; break; case "muc_moderated": parsed = Feature.MODERATED; break; case "muc_nonanonymous": parsed = Feature.NON_ANONYMOUS; break; case "muc_open": parsed = Feature.OPEN; break; case "muc_passwordprotected": parsed = Feature.PASSWORD_PROTECTED; break; case "muc_persistent": parsed = Feature.PERSISTENT; break; case "muc_public": parsed = Feature.PUBLIC; break; case "muc_rooms": parsed = Feature.ROOMS; break; case "muc_semianonymous": parsed = Feature.SEMI_ANONYMOUS; break; case "muc_temporary": parsed = Feature.TEMPORARY; break; case "muc_unmoderated": parsed = Feature.UNMODERATED; break; case "muc_unsecured": parsed = Feature.UNSECURED; break; } if (parsed != null) features.add(parsed); } } stream.get_flag(Flag.IDENTITY).set_room_features(jid, features); }); } public delegate void OnAffiliationResult(XmppStream stream, Gee.List jids); private void query_affiliation(XmppStream stream, string jid, string affiliation, owned OnAffiliationResult? listener) { Iq.Stanza iq = new Iq.Stanza.get( new StanzaNode.build("query", NS_URI_ADMIN) .add_self_xmlns() .put_node(new StanzaNode.build("item", NS_URI_ADMIN) .put_attribute("affiliation", affiliation)) ) { to=jid }; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, (stream, iq) => { if (iq.is_error()) return; StanzaNode? query_node = iq.stanza.get_subnode("query", NS_URI_ADMIN); if (query_node == null) return; Gee.List item_nodes = query_node.get_subnodes("item", NS_URI_ADMIN); Gee.List ret_jids = new ArrayList(); foreach (StanzaNode item in item_nodes) { string? jid_ = item.get_attribute("jid"); string? affiliation_ = item.get_attribute("affiliation"); if (jid_ != null && affiliation_ != null) { stream.get_flag(Muc.Flag.IDENTITY).set_offline_member(iq.from, jid_, parse_affiliation(affiliation_)); ret_jids.add(jid_); } } if (listener != null) listener(stream, ret_jids); }); } private static ArrayList get_status_codes(StanzaNode x_node) { ArrayList ret = new ArrayList(); foreach (StanzaNode status_node in x_node.get_subnodes("status", NS_URI_USER)) { ret.add(int.parse(status_node.get_attribute("code"))); } return ret; } private static Affiliation parse_affiliation(string affiliation_str) { Affiliation affiliation; switch (affiliation_str) { case "admin": affiliation = Affiliation.ADMIN; break; case "member": affiliation = Affiliation.MEMBER; break; case "outcast": affiliation = Affiliation.OUTCAST; break; case "owner": affiliation = Affiliation.OWNER; break; default: affiliation = Affiliation.NONE; break; } return affiliation; } private static Role parse_role(string role_str) { Role role; switch (role_str) { case "moderator": role = Role.MODERATOR; break; case "participant": role = Role.PARTICIPANT; break; case "visitor": role = Role.VISITOR; break; default: role = Role.NONE; break; } return role; } } }