mail_auth/common/
mod.rs

1/*
2 * SPDX-FileCopyrightText: 2020 Stalwart Labs LLC <hello@stalw.art>
3 *
4 * SPDX-License-Identifier: Apache-2.0 OR MIT
5 */
6
7use crate::DnsError;
8use crate::{Error, IprevResult};
9use std::borrow::Cow;
10
11pub mod auth_results;
12pub mod base32;
13pub mod cache;
14pub mod crypto;
15#[cfg(feature = "dns-doh")]
16pub mod doh;
17pub mod headers;
18pub mod message;
19pub mod parse;
20pub mod resolver;
21pub mod verify;
22
23pub fn to_a_label(domain: &str) -> Cow<'_, str> {
24    if !domain.is_ascii() {
25        idna::domain_to_ascii(domain)
26            .map(Cow::Owned)
27            .unwrap_or(Cow::Borrowed(domain))
28    } else if domain.bytes().any(|byte| byte.is_ascii_uppercase()) {
29        Cow::Owned(domain.to_ascii_lowercase())
30    } else {
31        Cow::Borrowed(domain)
32    }
33}
34
35impl From<Error> for IprevResult {
36    fn from(err: Error) -> Self {
37        if matches!(&err, Error::Dns(DnsError::Resolver(_))) {
38            IprevResult::TempError(err)
39        } else {
40            IprevResult::PermError(err)
41        }
42    }
43}
mail_auth/common/mod.rs

mail_auth/common/
mod.rs
