steam_auth/
redirector.rs

1use crate::{Error, STEAM_URL};
2use url::Url;
3
4#[derive(Debug, Clone)]
5/// Stores the URL that users should be redirected to.
6pub struct Redirector {
7    url: Url,
8}
9
10impl Redirector {
11    /// # Example
12    /// ```
13    /// # use steam_auth::Redirector;
14    /// # fn main() {
15    /// let redirector = Redirector::new("http://localhost:8080", "/callback");
16    /// # }
17    /// ```
18    pub fn new<T: AsRef<str>, U: AsRef<str>>(site_url: T, return_url: U) -> Result<Self, Error> {
19        let joined = Url::parse(site_url.as_ref())
20            .map_err(Error::BadUrl)?
21            .join(return_url.as_ref())
22            .map_err(Error::BadUrl)?;
23
24        let openid = SteamAuthRequest::new(site_url.as_ref(), joined.as_str());
25
26        let qs = serde_urlencoded::to_string(&openid).map_err(Error::ParseQueryString)?;
27
28        // Shouldn't happen
29        let mut url = Url::parse(STEAM_URL).map_err(Error::BadUrl)?;
30
31        url.set_query(Some(&qs));
32
33        Ok(Self { url })
34    }
35
36    /// Constructs a new HTTP response which redirects the user to the URL, starting the login
37    /// process.
38    pub fn create_response(&self) -> Result<http::Response<()>, Error> {
39        http::Response::builder()
40            .status(http::StatusCode::FOUND)
41            .header("Location", self.url.as_str())
42            .body(())
43            .map_err(Error::BuildHttpStruct)
44    }
45
46    /// Gets the URL to which users should be redirected.
47    pub fn url(&self) -> &Url {
48        &self.url
49    }
50}
51
52#[derive(Serialize)]
53struct SteamAuthRequest<'a> {
54    #[serde(rename = "openid.ns")]
55    ns: &'static str,
56    #[serde(rename = "openid.identity")]
57    identity: &'static str,
58    #[serde(rename = "openid.claimed_id")]
59    claimed_id: &'static str,
60    #[serde(rename = "openid.mode")]
61    mode: &'static str,
62    #[serde(rename = "openid.return_to")]
63    return_to: &'a str,
64    #[serde(rename = "openid.realm")]
65    realm: &'a str,
66}
67
68impl<'a> SteamAuthRequest<'a> {
69    fn new(site_url: &'a str, return_to_joined: &'a str) -> Self {
70        Self {
71            ns: "http://specs.openid.net/auth/2.0",
72            identity: "http://specs.openid.net/auth/2.0/identifier_select",
73            claimed_id: "http://specs.openid.net/auth/2.0/identifier_select",
74            mode: "checkid_setup",
75            realm: site_url,
76            return_to: return_to_joined,
77        }
78    }
79}
steam_auth/redirector.rs

steam_auth/
redirector.rs
