apeirogond 0.15.2

Daemon for Apeirogon, a cross-platform software KVM
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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235

// SPDX-License-Identifier: GPL-3.0-or-later

use super::*;
use crate::command::Command;
use crate::daemon::DaemonError;

#[tokio::test]
async fn receive_clipboard_ask_policy_holds_without_applying() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    daemon
        .config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    daemon.clipboard_changed(Some(change("local")));
    let previous = daemon.clipboard.current;
    let incoming = wire(peer, 10, "private contents");

    // Act
    daemon.receive_clipboard(peer, &incoming);

    // Assert
    assert!(commands.try_recv().is_err());
    assert_eq!(daemon.clipboard.current, previous);
    assert_eq!(daemon.clipboard.held.as_ref().unwrap().wire, incoming);
    let info = daemon.clipboard_status();
    assert_eq!(info.held, daemon.status().held_clipboard);
    let held = info.held.unwrap();
    assert_eq!(held.machine, peer);
    assert_eq!(held.items, 1);
    assert_eq!(held.size, 16);
    assert_eq!(held.kinds, [a7n_ipc::ClipboardKind::Text]);
}

#[tokio::test]
async fn accept_clipboard_held_newest_applies_copy() {
    // Arrange
    let (mut a, a_dir, changes, _a_commands) = daemon();
    let (mut b, b_dir, _b_changes, mut commands) = daemon();
    let peer = a.identity.machine_id;
    b.config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    a.clipboard_changed(Some(change("first")));
    let (a, b) = (Peer::run(a, a_dir), Peer::run(b, b_dir));
    a.pair(&b).await;
    b.wait(|s| s.held_clipboard.is_some()).await;
    changes.send(change("newest")).await.unwrap();
    b.wait(|s| s.held_clipboard.as_ref().is_some_and(|held| held.size == 6))
        .await;
    assert!(commands.try_recv().is_err());

    // Act
    let result = b.command(Command::ClipboardAccept).await;

    // Assert
    assert!(result.is_ok());
    let ClipboardCommand::Set {
        generation, items, ..
    } = commands.try_recv().unwrap();
    assert_eq!(generation.generation, 2);
    assert_eq!(items, change("newest").items);
    assert!(b.status().await.held_clipboard.is_none());
    assert!(commands.try_recv().is_err());
    a.stop().await;
    b.stop().await;
}

#[tokio::test]
async fn accept_clipboard_newer_generation_arrived_is_rejected() {
    for local in [false, true] {
        // Arrange
        let (mut daemon, _dir, _changes, mut commands) = daemon();
        let peer = daemon.identity.machine_id;
        daemon
            .config
            .set(&format!("peers.{peer}.clipboard"), "ask")
            .unwrap();
        daemon.receive_clipboard(peer, &wire(peer, 10, "held"));
        if local {
            daemon.clipboard_changed(Some(change("local")));
        } else {
            let other = MachineId::try_from([42; MachineId::LEN].as_slice()).unwrap();
            daemon.receive_clipboard(other, &wire(other, 11, "newer"));
            commands.try_recv().unwrap();
        }
        let current = daemon.clipboard.current;

        // Act
        let result = daemon.accept_clipboard();

        // Assert
        assert!(matches!(result, Err(DaemonError::InvalidRequest(_))));
        assert!(daemon.clipboard.held.is_none());
        assert_eq!(daemon.clipboard.current, current);
        assert!(commands.try_recv().is_err());
    }
}

#[tokio::test]
async fn reject_clipboard_held_drops_copy() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    daemon
        .config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    daemon.receive_clipboard(peer, &wire(peer, 10, "held"));

    // Act
    let result = daemon.reject_clipboard();

    // Assert
    assert!(result.is_ok());
    assert!(daemon.clipboard.held.is_none());
    assert!(daemon.clipboard.current.is_none());
    assert!(commands.try_recv().is_err());
    assert!(matches!(
        daemon.reject_clipboard(),
        Err(DaemonError::InvalidRequest(_))
    ));
}

#[tokio::test]
async fn expire_held_clipboard_past_deadline_drops_copy() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    daemon
        .config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    daemon.receive_clipboard(peer, &wire(peer, 10, "held"));
    let deadline = daemon.clipboard.held.as_ref().unwrap().deadline;
    daemon
        .clipboard
        .expire_held_clipboard(deadline.checked_sub(Duration::from_nanos(1)).unwrap());
    assert!(daemon.clipboard.held.is_some());

    // Act
    daemon.clipboard.expire_held_clipboard(deadline);

    // Assert
    assert!(daemon.clipboard.held.is_none());
    assert!(daemon.clipboard.current.is_none());
    assert!(commands.try_recv().is_err());
}

#[tokio::test]
async fn link_down_held_peer_drops_copy() {
    // Arrange
    let (mut a, a_dir, _changes, _a_commands) = daemon();
    let (mut b, b_dir, _b_changes, mut commands) = daemon();
    let peer = a.identity.machine_id;
    b.config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    a.clipboard_changed(Some(change("held")));
    let (a, b) = (Peer::run(a, a_dir), Peer::run(b, b_dir));
    a.pair(&b).await;
    b.wait(|s| s.held_clipboard.is_some()).await;

    // Act
    a.stop().await;

    // Assert
    b.wait(|s| !super::super::super::test_peer::linked(s, peer))
        .await;
    assert!(b.status().await.held_clipboard.is_none());
    assert!(commands.try_recv().is_err());
    b.stop().await;
}

#[tokio::test]
async fn receive_clipboard_ask_stale_or_invalid_keeps_newest_held() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    daemon
        .config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    let newest = wire(peer, 10, "newest");
    daemon.receive_clipboard(peer, &newest);
    let mut invalid = wire(peer, 11, "invalid");
    invalid.items[0].sha256[0] ^= 1;

    // Act
    daemon.receive_clipboard(peer, &wire(peer, 9, "older"));
    daemon.receive_clipboard(peer, &invalid);

    // Assert
    assert_eq!(daemon.clipboard.held.as_ref().unwrap().wire, newest);
    assert!(commands.try_recv().is_err());
    assert!(daemon.clipboard.current.is_none());
}

#[tokio::test]
async fn accept_clipboard_link_gone_returns_not_connected() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    daemon
        .config
        .set(&format!("peers.{peer}.clipboard"), "ask")
        .unwrap();
    daemon.receive_clipboard(peer, &wire(peer, 10, "held"));

    // Act
    let result = daemon.accept_clipboard();

    // Assert
    assert!(matches!(result, Err(DaemonError::NotConnected)));
    assert!(daemon.clipboard.held.is_none());
    assert!(commands.try_recv().is_err());
}

#[tokio::test]
async fn receive_clipboard_foreign_origin_is_ignored() {
    // Arrange
    let (mut daemon, _dir, _changes, mut commands) = daemon();
    let peer = daemon.identity.machine_id;
    let spoofed = MachineId::try_from([7; MachineId::LEN].as_slice()).unwrap();
    daemon.clipboard_changed(Some(change("local")));
    let previous = daemon.clipboard.current;

    // Act
    daemon.receive_clipboard(peer, &wire(spoofed, 10, "spoofed"));

    // Assert
    assert!(commands.try_recv().is_err());
    assert_eq!(daemon.clipboard.current, previous);
}