use url::Url;
/// A trait to try to convert some type into a `Url`.
///
/// This trait is "sealed", such that only types within reqwest can
/// implement it.
pub trait IntoUrl: IntoUrlSealed {}
impl IntoUrl for Url {}
impl IntoUrl for String {}
impl<'a> IntoUrl for &'a str {}
impl<'a> IntoUrl for &'a String {}
pub trait IntoUrlSealed {
// Besides parsing as a valid `Url`, the `Url` must be a valid
// `http::Uri`, in that it makes sense to use in a network request.
fn into_url(self) -> crate::Result<Url>;
fn as_str(&self) -> &str;
}
impl IntoUrlSealed for Url {
fn into_url(self) -> crate::Result<Url> {
// With blob url the `self.has_host()` check is always false, so we
// remove the `blob:` scheme and check again if the url is valid.
#[cfg(target_arch = "wasm32")]
if self.scheme() == "blob"
&& self.path().starts_with("http") // Check if the path starts with http or https to avoid validating a `blob:blob:...` url.
&& self.as_str()[5..].into_url().is_ok()
{
return Ok(self);
}
if self.has_host() {
Ok(self)
} else {
Err(crate::error::url_bad_scheme(self))
}
}
fn as_str(&self) -> &str {
self.as_ref()
}
}
impl<'a> IntoUrlSealed for &'a str {
fn into_url(self) -> crate::Result<Url> {
Url::parse(self).map_err(crate::error::builder)?.into_url()
}
fn as_str(&self) -> &str {
self
}
}
impl<'a> IntoUrlSealed for &'a String {
fn into_url(self) -> crate::Result<Url> {
(&**self).into_url()
}
fn as_str(&self) -> &str {
self.as_ref()
}
}
impl IntoUrlSealed for String {
fn into_url(self) -> crate::Result<Url> {
(&*self).into_url()
}
fn as_str(&self) -> &str {
self.as_ref()
}
}
if_hyper! {
pub(crate) fn try_uri(url: &Url) -> crate::Result<http::Uri> {
url.as_str()
.parse()
.map_err(|_| crate::error::url_invalid_uri(url.clone()))
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::error::Error;
#[test]
fn into_url_file_scheme() {
let err = "file:///etc/hosts".into_url().unwrap_err();
assert_eq!(
err.source().unwrap().to_string(),
"URL scheme is not allowed"
);
}
#[test]
fn into_url_blob_scheme() {
let err = "blob:https://example.com".into_url().unwrap_err();
assert_eq!(
err.source().unwrap().to_string(),
"URL scheme is not allowed"
);
}
if_wasm! {
use wasm_bindgen_test::*;
#[wasm_bindgen_test]
fn into_url_blob_scheme_wasm() {
let url = "blob:http://example.com".into_url().unwrap();
assert_eq!(url.as_str(), "blob:http://example.com");
}
}
}