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
|
use p256::{NistP256, ecdsa::SigningKey, elliptic_curve::FieldBytes};
use sqlx::{Sqlite, SqliteConnection, Transaction};
use super::{
History,
event::{Changed, Event},
};
use crate::{
clock::DateTime,
db::NotFound,
event::{Instant, Sequence},
};
pub trait Provider {
fn vapid(&mut self) -> Vapid<'_>;
}
impl Provider for Transaction<'_, Sqlite> {
fn vapid(&mut self) -> Vapid<'_> {
Vapid(self)
}
}
pub struct Vapid<'a>(&'a mut SqliteConnection);
impl Vapid<'_> {
pub async fn record_events(
&mut self,
events: impl IntoIterator<Item = Event>,
) -> Result<(), sqlx::Error> {
for event in events {
self.record_event(&event).await?;
}
Ok(())
}
pub async fn record_event(&mut self, event: &Event) -> Result<(), sqlx::Error> {
match event {
Event::Changed(changed) => self.record_changed(changed).await,
}
}
async fn record_changed(&mut self, changed: &Changed) -> Result<(), sqlx::Error> {
sqlx::query!(
r#"
insert into vapid_key (changed_at, changed_sequence)
values ($1, $2)
"#,
changed.instant.at,
changed.instant.sequence,
)
.execute(&mut *self.0)
.await?;
Ok(())
}
pub async fn clear(&mut self) -> Result<(), sqlx::Error> {
sqlx::query!(
r#"
delete from vapid_key
"#
)
.execute(&mut *self.0)
.await?;
sqlx::query!(
r#"
delete from vapid_signing_key
"#
)
.execute(&mut *self.0)
.await?;
Ok(())
}
pub async fn store_signing_key(&mut self, key: &SigningKey) -> Result<(), Error> {
let key = key.to_bytes();
let key = key.as_slice();
sqlx::query!(
r#"
insert into vapid_signing_key (key)
values ($1)
"#,
key,
)
.execute(&mut *self.0)
.await?;
Ok(())
}
pub async fn current(&mut self) -> Result<History, Error> {
let key = sqlx::query!(
r#"
select
key.changed_at as "changed_at: DateTime",
key.changed_sequence as "changed_sequence: Sequence",
signing.key as "key: Vec<u8>"
from vapid_key as key
join vapid_signing_key as signing
"#
)
.map(|row| {
let key = FieldBytes::<NistP256>::from_slice(&row.key);
let key = SigningKey::from_bytes(key)?;
let key = key.verifying_key().to_owned();
let changed = Instant::new(row.changed_at, row.changed_sequence);
Ok::<_, Error>(History { key, changed })
})
.fetch_one(&mut *self.0)
.await??;
Ok(key)
}
}
#[derive(Debug, thiserror::Error)]
#[error(transparent)]
pub enum Error {
Ecdsa(#[from] p256::ecdsa::Error),
Database(#[from] sqlx::Error),
}
impl<T> NotFound for Result<T, Error> {
type Ok = T;
type Error = Error;
fn optional(self) -> Result<Option<T>, Error> {
match self {
Ok(value) => Ok(Some(value)),
Err(Error::Database(sqlx::Error::RowNotFound)) => Ok(None),
Err(other) => Err(other),
}
}
}
|
