ptth/crates/ptth_core/src/lib.rs

44 lines
1.0 KiB
Rust

#![warn (clippy::pedantic)]
pub mod graceful_shutdown;
pub mod http_serde;
pub mod prelude;
// It's easier if the server can stream its response body
// back to the relay un-changed inside its request body
// So we wrap the server's actual response head
// (status code, headers, etc.) in this one header field.
pub const PTTH_MAGIC_HEADER: &str = "X-PTTH-2LJYXWC4";
// The arguments are in order so they are in order overall:
// e.g. prefix_match ("/prefix", "/prefix/middle/suffix") -> "/middle/suffix"
#[must_use]
pub fn prefix_match <'a> (prefix: &str, hay: &'a str) -> Option <&'a str>
{
if hay.starts_with (prefix) {
Some (&hay [prefix.len ()..])
}
else {
None
}
}
#[cfg (test)]
mod tests {
use super::*;
#[test]
fn prefix () {
for (p, h, expected) in &[
("/files/", "/files/a", Some ("a")),
("/files/", "/files/abc/def", Some ("abc/def")),
("/files/", "/files", None),
("/files/", "/not_files", None),
("/files/", "/files/", Some ("")),
] {
assert_eq! (prefix_match (*p, *h), *expected);
}
}
}