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
#![doc(html_favicon_url = "https://www.ruma.io/favicon.ico")]
#![doc(html_logo_url = "https://www.ruma.io/images/logo.png")]
pub mod device_key_id;
pub mod error;
pub mod event_id;
pub mod key_id;
pub mod mxc_uri;
pub mod room_alias_id;
pub mod room_id;
pub mod room_id_or_alias_id;
pub mod room_version_id;
pub mod server_name;
pub mod user_id;
use std::num::NonZeroU8;
pub use error::Error;
const MAX_BYTES: usize = 255;
fn validate_id(id: &str, valid_sigils: &[char]) -> Result<(), Error> {
if id.len() > MAX_BYTES {
return Err(Error::MaximumLengthExceeded);
}
if !id.starts_with(valid_sigils) {
return Err(Error::MissingLeadingSigil);
}
Ok(())
}
fn parse_id(id: &str, valid_sigils: &[char]) -> Result<NonZeroU8, Error> {
validate_id(id, valid_sigils)?;
let colon_idx = id.find(':').ok_or(Error::MissingDelimiter)?;
server_name::validate(&id[colon_idx + 1..])?;
Ok(NonZeroU8::new(colon_idx as u8).unwrap())
}