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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![allow(clippy::module_name_repetitions)]
use std::fmt::{Debug, Formatter};
use url::{ParseError, Url};
pub trait RequestTarget: Debug {
fn scheme(&self) -> &str;
fn authority(&self) -> &str;
fn path(&self) -> &str;
}
pub struct RefRequestTarget<'s, 'a, 'p> {
scheme: &'s str,
authority: &'a str,
path: &'p str,
}
impl RequestTarget for RefRequestTarget<'_, '_, '_> {
fn scheme(&self) -> &str {
self.scheme
}
fn authority(&self) -> &str {
self.authority
}
fn path(&self) -> &str {
self.path
}
}
impl<'s, 'a, 'p> RefRequestTarget<'s, 'a, 'p> {
#[must_use]
pub const fn new(scheme: &'s str, authority: &'a str, path: &'p str) -> Self {
Self {
scheme,
authority,
path,
}
}
}
impl Debug for RefRequestTarget<'_, '_, '_> {
fn fmt(&self, f: &mut Formatter) -> ::std::fmt::Result {
write!(f, "{}://{}{}", self.scheme, self.authority, self.path)
}
}
/// `AsRequestTarget` is a trait that produces a `RequestTarget` that
/// refers to the identified object.
pub trait AsRequestTarget<'x> {
type Target: RequestTarget;
type Error;
/// Produce a `RequestTarget` that refers to `self`.
///
/// # Errors
///
/// This method can generate an error of type `Self::Error`
/// if the conversion is unsuccessful.
fn as_request_target(&'x self) -> Result<Self::Target, Self::Error>;
}
impl<'x, S, A, P> AsRequestTarget<'x> for (S, A, P)
where
S: AsRef<str> + 'x,
A: AsRef<str> + 'x,
P: AsRef<str> + 'x,
{
type Target = RefRequestTarget<'x, 'x, 'x>;
type Error = ();
fn as_request_target(&'x self) -> Result<Self::Target, Self::Error> {
Ok(RefRequestTarget::new(
self.0.as_ref(),
self.1.as_ref(),
self.2.as_ref(),
))
}
}
impl<'x> AsRequestTarget<'x> for Url {
type Target = RefRequestTarget<'x, 'x, 'x>;
type Error = ();
fn as_request_target(&'x self) -> Result<Self::Target, Self::Error> {
Ok(RefRequestTarget::new(
self.scheme(),
self.host_str().unwrap_or(""),
self.path(),
))
}
}
pub struct UrlRequestTarget {
url: Url,
}
impl RequestTarget for UrlRequestTarget {
fn scheme(&self) -> &str {
self.url.scheme()
}
fn authority(&self) -> &str {
self.url.host_str().unwrap_or("")
}
fn path(&self) -> &str {
self.url.path()
}
}
impl Debug for UrlRequestTarget {
fn fmt(&self, f: &mut Formatter) -> ::std::fmt::Result {
self.url.fmt(f)
}
}
impl<'x> AsRequestTarget<'x> for str {
type Target = UrlRequestTarget;
type Error = ParseError;
fn as_request_target(&'x self) -> Result<Self::Target, Self::Error> {
let url = Url::parse(self)?;
Ok(UrlRequestTarget { url })
}
}