/// Extract the response parameters from the callback request invoked
/// by the provider's authorization page.
Extract the response parameters from the callback request invoked
by the provider's authorization page.
Extract the response parameters from the callback request invoked by the provider ' s authorization page .
fn token_exchange(
        redirect_uri: RedirectUrl,
        req: &HttpRequest,
    ) -> Result<BasicTokenResponse, TelescopeError> {
        // Extract the parameters from the request.
        let params: Query<AuthResponse> = Query::extract(req)
            // Extract the value out of the immediately ready future.
            .into_inner()
            // Propagate any errors that occur.
            .map_err(|err: actix_web::Error| {
                // Map all errors getting the query from the request into a bad
                // request error.
                TelescopeError::BadRequest {
                    header: "Bad Authentication Request".into(),
                    message: format!(
                        "Could not get authentication parameters from request URL. \
                    Actix-web error: {}",
                        err
                    ),
                    show_status_code: true,
                }
            })?;
        // Destructure the parameters.
        let AuthResponse { code, state } = params.0;
        // Verify the CSRF token. Propagate any errors including a mismatch
        // (we expect to verify without issue most of the time).
        csrf::verify(Self::SERVICE_NAME, req, state)?;
        // Get the OAuth2 client to exchange the auth code for an access token.
        let oauth_client: Arc<BasicClient> = Self::get_client();
        // Send the exchange request and wait for a response. This happens
        // synchronously so take care where you call this function from.
        // Return the response to the calling function.
        return oauth_client
            .exchange_code(code)
            .add_extra_param("redirect_uri", redirect_uri.as_str())
            // Send request and wait for response synchronously.
            .request(oauth2::reqwest::http_client)
            // Any errors that occur should be reported as internal server errors.
            .map_err(|e| {
                TelescopeError::ise(format!(
                    "OAuth2 token exchange error. If this \
                persists, please contact a coordinator and file a GitHub issue. Internal error \
                description: {:?}",
                    e
                ))
            });
    }
fn token_exchange ( redirect_uri : RedirectUrl , req : & HttpRequest , ) -> Result < BasicTokenResponse , TelescopeError > { // Extract the parameters from the request. let params : Query < AuthResponse > = Query :: extract ( req ) // Extract the value out of the immediately ready future. . into_inner ( ) // Propagate any errors that occur. . map_err ( | err : actix_web :: Error | { // Map all errors getting the query from the request into a bad // request error. TelescopeError :: BadRequest { header : " " . into ( ) , message : format ! ( " \
 " err ) , show_status_code : true , } } ) ? ; // Destructure the parameters. let AuthResponse { code , state } = params . 0 ; // Verify the CSRF token. Propagate any errors including a mismatch // (we expect to verify without issue most of the time). csrf :: verify ( Self :: SERVICE_NAME , req , state ) ? ; // Get the OAuth2 client to exchange the auth code for an access token. let oauth_client : Arc < BasicClient > = Self :: get_client ( ) ; // Send the exchange request and wait for a response. This happens // synchronously so take care where you call this function from. // Return the response to the calling function. return oauth_client . exchange_code ( code ) . add_extra_param ( " " , redirect_uri . as_str ( ) ) // Send request and wait for response synchronously. . request ( oauth2 :: reqwest :: http_client ) // Any errors that occur should be reported as internal server errors. . map_err ( | e | { TelescopeError :: ise ( format ! ( " \
 \
 " e ) ) } ) ; }
Extract the response parameters from the callback request invoked
by the provider's authorization page.
Extract the response parameters from the callback request invoked by the provider ' s authorization page .
redirect_uri
RedirectUrl
req
&HttpRequest