reqwest/
into_url.rs

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1use url::Url;
2
3/// A trait to try to convert some type into a `Url`.
4///
5/// This trait is "sealed", such that only types within reqwest can
6/// implement it.
7pub trait IntoUrl: IntoUrlSealed {}
8
9impl IntoUrl for Url {}
10impl IntoUrl for String {}
11impl<'a> IntoUrl for &'a str {}
12impl<'a> IntoUrl for &'a String {}
13
14pub trait IntoUrlSealed {
15    // Besides parsing as a valid `Url`, the `Url` must be a valid
16    // `http::Uri`, in that it makes sense to use in a network request.
17    fn into_url(self) -> crate::Result<Url>;
18
19    fn as_str(&self) -> &str;
20}
21
22impl IntoUrlSealed for Url {
23    fn into_url(self) -> crate::Result<Url> {
24        // With blob url the `self.has_host()` check is always false, so we
25        // remove the `blob:` scheme and check again if the url is valid.
26        #[cfg(target_arch = "wasm32")]
27        if self.scheme() == "blob"
28            && self.path().starts_with("http") // Check if the path starts with http or https to avoid validating a `blob:blob:...` url.
29            && self.as_str()[5..].into_url().is_ok()
30        {
31            return Ok(self);
32        }
33
34        if self.has_host() {
35            Ok(self)
36        } else {
37            Err(crate::error::url_bad_scheme(self))
38        }
39    }
40
41    fn as_str(&self) -> &str {
42        self.as_ref()
43    }
44}
45
46impl<'a> IntoUrlSealed for &'a str {
47    fn into_url(self) -> crate::Result<Url> {
48        Url::parse(self).map_err(crate::error::builder)?.into_url()
49    }
50
51    fn as_str(&self) -> &str {
52        self
53    }
54}
55
56impl<'a> IntoUrlSealed for &'a String {
57    fn into_url(self) -> crate::Result<Url> {
58        (&**self).into_url()
59    }
60
61    fn as_str(&self) -> &str {
62        self.as_ref()
63    }
64}
65
66impl IntoUrlSealed for String {
67    fn into_url(self) -> crate::Result<Url> {
68        (&*self).into_url()
69    }
70
71    fn as_str(&self) -> &str {
72        self.as_ref()
73    }
74}
75
76if_hyper! {
77    pub(crate) fn try_uri(url: &Url) -> crate::Result<http::Uri> {
78        url.as_str()
79            .parse()
80            .map_err(|_| crate::error::url_invalid_uri(url.clone()))
81    }
82}
83
84#[cfg(test)]
85mod tests {
86    use super::*;
87    use std::error::Error;
88
89    #[test]
90    fn into_url_file_scheme() {
91        let err = "file:///etc/hosts".into_url().unwrap_err();
92        assert_eq!(
93            err.source().unwrap().to_string(),
94            "URL scheme is not allowed"
95        );
96    }
97
98    #[test]
99    fn into_url_blob_scheme() {
100        let err = "blob:https://example.com".into_url().unwrap_err();
101        assert_eq!(
102            err.source().unwrap().to_string(),
103            "URL scheme is not allowed"
104        );
105    }
106
107    if_wasm! {
108        use wasm_bindgen_test::*;
109
110        #[wasm_bindgen_test]
111        fn into_url_blob_scheme_wasm() {
112            let url = "blob:http://example.com".into_url().unwrap();
113
114            assert_eq!(url.as_str(), "blob:http://example.com");
115        }
116    }
117}
reqwest/into_url.rs

reqwest/
into_url.rs
