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
// Copyright ⓒ 2024-2026 Peter Morgan <peter.james.morgan@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::{Error, Result, ScramCredential, Storage};
use bytes::Bytes;
use rama::{Context, Service};
use rsasl::mechanisms::scram::tools::derive_keys;
use sha2::{Digest, Sha256, Sha512};
use tansu_sans_io::{
AlterUserScramCredentialsRequest, AlterUserScramCredentialsResponse, ApiKey, ErrorCode,
ScramMechanism, alter_user_scram_credentials_response::AlterUserScramCredentialsResult,
};
use tracing::{debug, instrument};
#[derive(Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct AlterUserScramCredentialsService;
impl ApiKey for AlterUserScramCredentialsService {
const KEY: i16 = AlterUserScramCredentialsRequest::KEY;
}
impl<G> Service<G, AlterUserScramCredentialsRequest> for AlterUserScramCredentialsService
where
G: Storage,
{
type Response = AlterUserScramCredentialsResponse;
type Error = Error;
#[instrument(skip(ctx, req))]
async fn serve(
&self,
ctx: Context<G>,
req: AlterUserScramCredentialsRequest,
) -> Result<Self::Response, Self::Error> {
let mut results = vec![];
if let Some(deletions) = req.deletions {
for deletion in deletions {
let mechanism = ScramMechanism::try_from(deletion.mechanism)?;
results.push(
ctx.state()
.delete_user_scram_credential(&deletion.name, mechanism)
.await
.map_or(
AlterUserScramCredentialsResult::default()
.user(deletion.name.clone())
.error_code(ErrorCode::UnsupportedSaslMechanism.into())
.error_message(Some("".into())),
|()| {
AlterUserScramCredentialsResult::default()
.user(deletion.name.clone())
.error_code(ErrorCode::None.into())
.error_message(Some("".into()))
},
),
);
}
}
if let Some(upsertions) = req.upsertions {
for upsertion in upsertions {
let (mechanism, stored_key, server_key) =
ScramMechanism::try_from(upsertion.mechanism)
.inspect(|mechanism| debug!(?mechanism))
.map(|mechanism| {
if mechanism == ScramMechanism::Scram256 {
let (client_key, server_key) =
derive_keys::<Sha256>(&upsertion.salted_password);
(
mechanism,
Bytes::copy_from_slice(&Sha256::digest(client_key)[..]),
Bytes::copy_from_slice(&server_key[..]),
)
} else {
let (client_key, server_key) =
derive_keys::<Sha512>(&upsertion.salted_password);
(
mechanism,
Bytes::copy_from_slice(&Sha512::digest(client_key)[..]),
Bytes::copy_from_slice(&server_key[..]),
)
}
})?;
let credential = ScramCredential {
salt: upsertion.salt,
iterations: upsertion.iterations,
stored_key,
server_key,
};
results.push(
ctx.state()
.upsert_user_scram_credential(
upsertion.name.as_str(),
mechanism,
credential,
)
.await
.map_or(
AlterUserScramCredentialsResult::default()
.user(upsertion.name.clone())
.error_code(ErrorCode::UnsupportedSaslMechanism.into())
.error_message(Some("".into())),
|()| {
AlterUserScramCredentialsResult::default()
.user(upsertion.name.clone())
.error_code(ErrorCode::None.into())
.error_message(Some("".into()))
},
),
);
}
}
Ok(AlterUserScramCredentialsResponse::default()
.throttle_time_ms(0)
.results(Some(results)))
}
}