xmpp/pubsub/
mod.rs

1// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
2//
3// This Source Code Form is subject to the terms of the Mozilla Public
4// License, v. 2.0. If a copy of the MPL was not distributed with this
5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7use crate::{
8    jid::{BareJid, Jid},
9    minidom::Element,
10    muc::room::{JoinRoomSettings, LeaveRoomSettings},
11    parsers::{
12        bookmarks2, ns,
13        pubsub::{self, pubsub::PubSub},
14    },
15    Agent, Event, RoomNick,
16};
17
18use std::str::FromStr;
19
20#[cfg(feature = "avatars")]
21pub(crate) mod avatar;
22
23pub(crate) async fn handle_event(
24    #[cfg_attr(not(feature = "avatars"), allow(unused_variables))] from: &Jid,
25    elem: Element,
26    #[cfg_attr(not(feature = "avatars"), allow(unused_variables))] agent: &mut Agent,
27) -> Vec<Event> {
28    // We allow the useless mut warning for no-default-features,
29    // since for now only avatars pushes events here.
30    #[allow(unused_mut)]
31    let mut events = Vec::new();
32
33    let event = pubsub::Event::try_from(elem);
34    trace!("PubSub event: {:#?}", event);
35    match event {
36        Ok(pubsub::Event {
37            payload:
38                pubsub::event::Payload::Items {
39                    node,
40                    published,
41                    retracted,
42                },
43        }) => {
44            match node.0 {
45                #[cfg(feature = "avatars")]
46                ref node if node == ns::AVATAR_METADATA => {
47                    // TODO: Also handle retracted!
48                    let new_events =
49                        avatar::handle_metadata_pubsub_event(&from, agent, published).await;
50                    events.extend(new_events);
51                }
52                ref node if node == ns::BOOKMARKS2 => {
53                    // TODO: Check that our bare JID is the sender.
54                    if let [item] = &published[..] {
55                        let jid = BareJid::from_str(&item.id.clone().unwrap().0).unwrap();
56                        let payload = item.payload.clone().unwrap();
57                        match bookmarks2::Conference::try_from(payload) {
58                            Ok(conference) => {
59                                if conference.autojoin {
60                                    if !agent.rooms_joined.contains_key(&jid) {
61                                        agent
62                                            .join_room(JoinRoomSettings {
63                                                room: jid,
64                                                nick: conference.nick.map(RoomNick::new),
65                                                password: conference.password,
66                                                status: None,
67                                            })
68                                            .await;
69                                    }
70                                } else {
71                                    // So maybe another client of ours left the room... let's leave it too
72                                    agent.leave_room(LeaveRoomSettings::new(jid)).await;
73                                }
74                            }
75                            Err(err) => println!("not bookmark: {}", err),
76                        }
77                    } else if let [item] = &retracted[..] {
78                        let jid = BareJid::from_str(&item.0).unwrap();
79
80                        agent.leave_room(LeaveRoomSettings::new(jid)).await;
81                    } else {
82                        error!("No published or retracted item in pubsub event!");
83                    }
84                }
85                ref node => unimplemented!("node {}", node),
86            }
87        }
88        Ok(pubsub::Event {
89            payload: pubsub::event::Payload::Purge { node },
90        }) => match node.0 {
91            ref node if node == ns::BOOKMARKS2 => {
92                warn!("The bookmarks2 PEP node was deleted!");
93            }
94            ref node => unimplemented!("node {}", node),
95        },
96        Err(e) => {
97            error!("Error parsing PubSub event: {}", e);
98        }
99        _ => unimplemented!("PubSub event: {:#?}", event),
100    }
101    events
102}
103
104pub(crate) async fn handle_iq_result(
105    #[cfg_attr(not(feature = "avatars"), allow(unused_variables))] from: &Jid,
106    elem: Element,
107    agent: &mut Agent,
108) -> impl IntoIterator<Item = Event> {
109    // We allow the useless mut warning for no-default-features,
110    // since for now only avatars pushes events here.
111    #[allow(unused_mut)]
112    let mut events = Vec::new();
113
114    let pubsub = PubSub::try_from(elem).unwrap();
115    trace!("PubSub: {:#?}", pubsub);
116    if let PubSub::Items(items) = pubsub {
117        match items.node.0.clone() {
118            #[cfg(feature = "avatars")]
119            ref node if node == ns::AVATAR_DATA => {
120                let new_events = avatar::handle_data_pubsub_iq(&from, &items);
121                events.extend(new_events);
122            }
123            ref node if node == ns::BOOKMARKS2 => {
124                // Keep track of the new added/removed rooms in the bookmarks2 list.
125                // The rooms we joined which are no longer in the list should be left ASAP.
126                let mut new_room_list: Vec<BareJid> = Vec::new();
127
128                for item in items.items {
129                    let jid = BareJid::from_str(&item.id.clone().unwrap().0).unwrap();
130                    let payload = item.payload.clone().unwrap();
131                    match bookmarks2::Conference::try_from(payload) {
132                        Ok(conference) => {
133                            // This room was either marked for join or leave, but it was still in the bookmarks.
134                            // Keep track in new_room_list.
135                            new_room_list.push(jid.clone());
136
137                            if conference.autojoin {
138                                if !agent.rooms_joined.contains_key(&jid) {
139                                    agent
140                                        .join_room(JoinRoomSettings {
141                                            room: jid,
142                                            nick: conference.nick.map(RoomNick::new),
143                                            password: conference.password,
144                                            status: None,
145                                        })
146                                        .await;
147                                }
148                            } else {
149                                // Leave the room that is no longer autojoin
150                                agent.leave_room(LeaveRoomSettings::new(jid)).await;
151                            }
152                        }
153                        Err(err) => {
154                            warn!("Wrong payload type in bookmarks2 item: {}", err);
155                        }
156                    }
157                }
158
159                // Now we leave the rooms that are no longer in the bookmarks
160                let mut rooms_to_leave: Vec<BareJid> = Vec::new();
161                for (room, _nick) in &agent.rooms_joined {
162                    if !new_room_list.contains(&room) {
163                        rooms_to_leave.push(room.clone());
164                    }
165                }
166
167                for room in rooms_to_leave {
168                    agent.leave_room(LeaveRoomSettings::new(room)).await;
169                }
170            }
171            _ => unimplemented!(),
172        }
173    }
174    events
175}
xmpp/pubsub/mod.rs

xmpp/pubsub/
mod.rs
