tokio_xmpp/
event.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
// Copyright (c) 2024 Jonas Schäfer <jonas@zombofant.net>
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use rand::{thread_rng, Rng};
use xmpp_parsers::{iq::Iq, jid::Jid, message::Message, presence::Presence};

use crate::xmlstream::XmppStreamElement;
use crate::Error;

fn make_id() -> String {
    let id: u64 = thread_rng().gen();
    format!("{}", id)
}

/// A stanza sent/received over the stream.
#[derive(Debug)]
pub enum Stanza {
    /// IQ stanza
    Iq(Iq),

    /// Message stanza
    Message(Message),

    /// Presence stanza
    Presence(Presence),
}

impl Stanza {
    /// Assign a random ID to the stanza, if no ID has been assigned yet.
    pub fn ensure_id(&mut self) -> &str {
        match self {
            Self::Iq(iq) => {
                if iq.id.len() == 0 {
                    iq.id = make_id();
                }
                &iq.id
            }
            Self::Message(message) => message.id.get_or_insert_with(make_id),
            Self::Presence(presence) => presence.id.get_or_insert_with(make_id),
        }
    }
}

impl From<Iq> for Stanza {
    fn from(other: Iq) -> Self {
        Self::Iq(other)
    }
}

impl From<Presence> for Stanza {
    fn from(other: Presence) -> Self {
        Self::Presence(other)
    }
}

impl From<Message> for Stanza {
    fn from(other: Message) -> Self {
        Self::Message(other)
    }
}

impl TryFrom<Stanza> for Message {
    type Error = Stanza;

    fn try_from(other: Stanza) -> Result<Self, Self::Error> {
        match other {
            Stanza::Message(st) => Ok(st),
            other => Err(other),
        }
    }
}

impl TryFrom<Stanza> for Presence {
    type Error = Stanza;

    fn try_from(other: Stanza) -> Result<Self, Self::Error> {
        match other {
            Stanza::Presence(st) => Ok(st),
            other => Err(other),
        }
    }
}

impl TryFrom<Stanza> for Iq {
    type Error = Stanza;

    fn try_from(other: Stanza) -> Result<Self, Self::Error> {
        match other {
            Stanza::Iq(st) => Ok(st),
            other => Err(other),
        }
    }
}

impl From<Stanza> for XmppStreamElement {
    fn from(other: Stanza) -> Self {
        match other {
            Stanza::Iq(st) => Self::Iq(st),
            Stanza::Message(st) => Self::Message(st),
            Stanza::Presence(st) => Self::Presence(st),
        }
    }
}

/// High-level event on the Stream implemented by Client and Component
#[derive(Debug)]
pub enum Event {
    /// Stream is connected and initialized
    Online {
        /// Server-set Jabber-Id for your session
        ///
        /// This may turn out to be a different JID resource than
        /// expected, so use this one instead of the JID with which
        /// the connection was setup.
        bound_jid: Jid,
        /// Was this session resumed?
        ///
        /// Not yet implemented for the Client
        resumed: bool,
    },
    /// Stream end
    Disconnected(Error),
    /// Received stanza/nonza
    Stanza(Stanza),
}

impl Event {
    /// `Online` event?
    pub fn is_online(&self) -> bool {
        match *self {
            Event::Online { .. } => true,
            _ => false,
        }
    }

    /// Get the server-assigned JID for the `Online` event
    pub fn get_jid(&self) -> Option<&Jid> {
        match *self {
            Event::Online { ref bound_jid, .. } => Some(bound_jid),
            _ => None,
        }
    }

    /// If this is a `Stanza` event, get its data
    pub fn as_stanza(&self) -> Option<&Stanza> {
        match *self {
            Event::Stanza(ref stanza) => Some(stanza),
            _ => None,
        }
    }

    /// If this is a `Stanza` event, unwrap into its data
    pub fn into_stanza(self) -> Option<Stanza> {
        match self {
            Event::Stanza(stanza) => Some(stanza),
            _ => None,
        }
    }
}