65 lines
1.6 KiB
Rust
65 lines
1.6 KiB
Rust
use url::Url;
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/// A trait to try to convert some type into a `Url`.
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///
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/// This trait is "sealed", such that only types within reqwest can
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/// implement it. The reason is that it will eventually be deprecated
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/// and removed, when `std::convert::TryFrom` is stabilized.
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pub trait IntoUrl: PolyfillTryInto {}
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impl<T: PolyfillTryInto> IntoUrl for T {}
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pub trait PolyfillTryInto {
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// Besides parsing as a valid `Url`, the `Url` must be a valid
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// `http::Uri`, in that it makes sense to use in a network request.
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fn into_url(self) -> crate::Result<Url>;
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}
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impl PolyfillTryInto for Url {
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fn into_url(self) -> crate::Result<Url> {
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if self.has_host() {
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Ok(self)
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} else {
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Err(crate::error::url_bad_scheme(self))
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}
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}
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}
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impl<'a> PolyfillTryInto for &'a str {
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fn into_url(self) -> crate::Result<Url> {
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Url::parse(self).map_err(crate::error::builder)?.into_url()
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}
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}
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impl<'a> PolyfillTryInto for &'a String {
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fn into_url(self) -> crate::Result<Url> {
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(&**self).into_url()
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}
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}
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if_hyper! {
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pub(crate) fn expect_uri(url: &Url) -> http::Uri {
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url.as_str()
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.parse()
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.expect("a parsed Url should always be a valid Uri")
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}
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pub(crate) fn try_uri(url: &Url) -> Option<http::Uri> {
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url.as_str().parse().ok()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn into_url_file_scheme() {
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let err = "file:///etc/hosts".into_url().unwrap_err();
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assert_eq!(
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err.to_string(),
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"builder error for url (file:///etc/hosts): URL scheme is not allowed"
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);
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}
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}
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