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
|
use anyhow::{anyhow, Result};
use serde::{Deserialize, Serialize};
use std::{
collections::{btree_map::Entry::*, BTreeMap},
path::PathBuf,
sync::Arc,
};
use tokio::sync::Mutex;
use zbus::{
address::{
transport::{Transport, Unix, UnixSocket},
Address,
},
connection::Builder,
proxy,
zvariant::{OwnedObjectPath, Type},
Connection, Proxy,
};
static CONNECTIONS: Mutex<(BTreeMap<String, Arc<Connection>>, Option<Arc<Connection>>)> =
Mutex::const_new((BTreeMap::new(), None));
#[derive(Debug, Type, Deserialize, Serialize)]
struct ServiceStatus {
name: String,
description: String,
loaded: String,
active: String,
substate: String,
following_state: String,
unit_path: OwnedObjectPath,
job_id: u32,
job_type: String,
job_path: OwnedObjectPath,
}
#[proxy(
interface = "org.freedesktop.systemd1.Manager",
default_service = "org.freedesktop.systemd1",
default_path = "/org/freedesktop/systemd1"
)]
trait Manager {
async fn list_units(&self) -> Result<Vec<ServiceStatus>>;
async fn get_unit(&self, unit_name: &str) -> Result<OwnedObjectPath>;
}
async fn ensure_system_conn() -> Result<Arc<Connection>> {
let mut connections = CONNECTIONS.lock().await;
match &connections.1 {
Some(system_bus) => Ok(system_bus.clone()),
None => {
let system_bus = Arc::new(Connection::system().await?);
connections.1 = Some(system_bus.clone());
Ok(system_bus)
}
}
}
async fn ensure_user_conn(user: &str) -> Result<Arc<Connection>> {
let mut connections = CONNECTIONS.lock().await;
match connections.0.entry(user.to_owned()) {
Occupied(oe) => Ok(oe.get().clone()),
Vacant(ve) => {
let mut path = PathBuf::new();
path.push("/run/user");
path.push(format!(
"{}",
users::get_user_by_name(user)
.ok_or(anyhow!("Couldn't find user"))?
.uid()
));
path.push("bus");
let trans = Transport::Unix(Unix::new(UnixSocket::File(path)));
let conn = Builder::address(Address::new(trans))?.build().await?;
Ok(ve.insert(Arc::new(conn)).clone())
}
}
}
pub(crate) async fn check_systemd_all(user: Option<&str>) -> Result<String> {
let conn = match user {
None => ensure_system_conn().await,
Some(username) => ensure_user_conn(username).await,
}?;
let manager = ManagerProxy::new(&conn).await?;
let (good, bad) = manager.list_units().await?.into_iter().fold(
(0, vec![]),
|(old_good, mut old_bad), unit| {
if matches!(
unit.substate.as_str(),
"active"
| "inactive"
| "plugged"
| "mounted"
| "mounting"
| "dead"
| "listening"
| "running"
| "exited"
| "waiting"
| "abandoned"
| "elapsed"
| "start"
) {
(old_good + 1, old_bad)
} else {
old_bad.push(format!("{}: {}", unit.name, unit.substate));
(old_good, old_bad)
}
},
);
if bad.is_empty() {
Ok(format!("{good} good services"))
} else {
Err(anyhow!("Bad services: {}", bad.join(", ")))
}
}
pub(crate) async fn check_systemd_unit(user: Option<&str>, unit: &str) -> Result<String> {
let conn = match user {
None => ensure_system_conn().await,
Some(username) => ensure_user_conn(username).await,
}?;
let manager = ManagerProxy::new(&conn).await?;
let unit_object_path = if unit.contains('.') {
manager.get_unit(unit).await
} else {
manager.get_unit(&format!("{unit}.service")).await
}?;
let unit_proxy = Proxy::new(
&conn,
"org.freedesktop.systemd1",
unit_object_path,
"org.freedesktop.systemd1.Unit",
)
.await?;
let substate: String = unit_proxy.get_property("SubState").await?;
if matches!(
substate.as_str(),
"active"
| "inactive"
| "plugged"
| "mounted"
| "dead"
| "listening"
| "running"
| "exited"
| "waiting"
| "abandoned"
| "elapsed"
) {
Ok(format!("{unit}: {substate}"))
} else {
Err(anyhow!("{unit}: {substate}"))
}
}
|
