smtp_server_types/
lib.rs

1use std::io;
2
3use smtp_message::{Email, Hostname, Reply};
4
5pub mod reply;
6
7// TODO: add sanity checks that Accept is a 2xx reply, and Reject/Kill are not
8#[must_use]
9#[derive(Debug)]
10pub enum Decision<T> {
11    Accept {
12        reply: Reply,
13        res: T,
14    },
15    Reject {
16        reply: Reply,
17    },
18    Kill {
19        reply: Option<Reply>,
20        res: io::Result<()>,
21    },
22}
23
24// TODO: add sanity checks that Accept is a 2xx reply, and Reject/Kill are not
25// TODO: merge with Decision (blocked on https://github.com/serde-rs/serde/issues/1940)
26#[must_use]
27#[derive(Debug, serde::Deserialize, serde::Serialize)]
28pub enum SerializableDecision<T> {
29    Accept {
30        reply: Reply,
31        res: T,
32    },
33    Reject {
34        reply: Reply,
35    },
36    Kill {
37        reply: Option<Reply>,
38        res: Result<(), String>,
39    },
40}
41
42impl<T> From<SerializableDecision<T>> for Decision<T> {
43    fn from(d: SerializableDecision<T>) -> Decision<T> {
44        match d {
45            SerializableDecision::Accept { reply, res } => Decision::Accept { reply, res },
46            SerializableDecision::Reject { reply } => Decision::Reject { reply },
47            SerializableDecision::Kill { reply, res } => Decision::Kill {
48                reply,
49                res: res.map_err(|msg| io::Error::new(io::ErrorKind::Other, msg)),
50            },
51        }
52    }
53}
54
55#[derive(Debug, serde::Deserialize, serde::Serialize)]
56pub struct MailMetadata<U> {
57    pub user: U,
58    pub from: Option<Email>,
59    pub to: Vec<Email>,
60}
61
62#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
63pub struct HelloInfo {
64    /// Whether we are running Extended SMTP (ESMTP) or LMTP,
65    /// rather than plain SMTP
66    pub is_extended: bool,
67    pub hostname: Hostname,
68}
69
70#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
71pub struct ConnectionMetadata<U> {
72    pub user: U,
73    pub hello: Option<HelloInfo>,
74    pub is_encrypted: bool,
75}
smtp_server_types/lib.rs

smtp_server_types/
lib.rs
