#![doc(hidden)]
pub(crate) fn to_hex(input: &[u8]) -> String {
const CHARS: &[u8] = b"0123456789abcdef";
let mut result = String::with_capacity(input.len() * 2);
for &byte in input {
result.push(CHARS[(byte >> 4) as usize] as char);
result.push(CHARS[(byte & 0xf) as usize] as char);
}
result
}
pub fn get_content_length(headers: &http::HeaderMap) -> Option<usize> {
headers.get(http::header::CONTENT_LENGTH).and_then(|h| {
h.to_str()
.map_err(|_err| ())
.and_then(|hv| hv.parse::<u64>().map(|l| l as usize).map_err(|_err| ()))
.ok()
})
}
#[allow(clippy::trivially_copy_pass_by_ref)]
pub(crate) fn if_false(v: &bool) -> bool {
!v
}
pub(crate) const QUERY_ENCODE_SET: &percent_encoding::AsciiSet = &percent_encoding::CONTROLS
.add(b' ')
.add(b'"')
.add(b'#')
.add(b'<')
.add(b'>');
pub(crate) const PATH_ENCODE_SET: &percent_encoding::AsciiSet = &QUERY_ENCODE_SET
.add(b'`')
.add(b'?')
.add(b'{')
.add(b'}')
.add(b'%')
.add(b'/');
#[cfg(test)]
mod test {
#[test]
fn converts_to_hex() {
let expected = format!("{:x}", 1234529871u32);
let bytes = 1234529871u32.to_be_bytes();
assert_eq!(expected, super::to_hex(&bytes));
}
}