fix: Parse OIDC discovery URL more leniently

src/core/config/mod.rs

@@ -2497,7 +2497,7 @@ pub struct OidcConfig {
 	/// automatically fetch the identity provider's metadata from this URL.
 	/// Generally you should set this to the base domain your identity provider
 	/// runs on.
-	pub discovery_url: Url,
+	pub discovery_url: String,
 
 	/// The OAuth client ID for Continuwuity to use when communicating with the
 	/// identity provider.

src/service/oidc/mod.rs

@@ -172,7 +172,8 @@ impl crate::Service for Service {
 				.expect("redirect url should be valid");
 
 			let provider_metadata = CoreProviderMetadata::discover_async(
-				IssuerUrl::from_url(config.discovery_url.clone()),
+				IssuerUrl::new(config.discovery_url.clone())
+					.map_err(|err| err!("Failed to parse OIDC discovery URL: {err}"))?,
 				client,
 			)
 			.await