fix: return .well-known after checking OIDC capabilities

Signed-off-by: The one with the braid <[email protected]>

lib/src/client.dart

@@ -616,27 +616,25 @@ class Client extends MatrixApi {
   /// The result of this call is stored in [wellKnown] for later use at runtime.
   @override
   Future<DiscoveryInformation> getWellknown() async {
+    DiscoveryInformation wellKnown;
     try {
-      final wellKnown = await super.getWellknown();
+      wellKnown = await super.getWellknown();
 
       // do not reset the well known here, so super call
       super.homeserver = wellKnown.mHomeserver.baseUrl.stripTrailingSlash();
       _wellKnown = wellKnown;
       await database?.storeWellKnown(wellKnown);
-
-      return wellKnown;
     } finally {
       // MSC2965 no longer expects any information on whether OIDC is supported
       // to be present in .well-known - the only way to figure out is sadly
       // calling the /auth_metadata endpoint.
       try {
         try {
           _oidcAuthMetadata = await getOidcAuthMetadata();
-        } catch (e) {
+        } on http.ClientException {
           Logs().v(
             '[OIDC] auth_metadata endpoint not supported. '
             'Fallback on legacy .well-known discovery.',
-            e,
           );
           // even though no longer required, a homeserver *might* still prefer
           // the fallback on .well-known discovery as per
@@ -649,10 +647,11 @@ class Client extends MatrixApi {
         }
         await database?.storeOidcAuthMetadata(_oidcAuthMetadata);
         Logs().v('[OIDC] Found auth metadata document.');
-      } catch (e) {
-        Logs().v('[OIDC] Homeserver does not support OIDC delegation.', e);
+      } on http.ClientException {
+        Logs().v('[OIDC] Homeserver does not support OIDC delegation.');
       }
     }
+    return wellKnown;
   }
 
   /// Checks to see if a username is available, and valid, for the server.