Handle OpenID discovery URL errors a little nicer when creating/editing sources (#23397)

When there is an error creating a new openIDConnect authentication
source try to handle the error a little better.

Close #23283

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/services/auth/source/oauth2/source_register.go b/services/auth/source/oauth2/source_register.go
index 3527d54b6..82a36acaa 100644
--- a/services/auth/source/oauth2/source_register.go
+++ b/services/auth/source/oauth2/source_register.go
@@ -36,6 +36,10 @@ func (err ErrOpenIDConnectInitialize) Error() string {
 	return fmt.Sprintf("Failed to initialize OpenID Connect Provider with name '%s' with url '%s': %v", err.ProviderName, err.OpenIDConnectAutoDiscoveryURL, err.Cause)
 }
 
+func (err ErrOpenIDConnectInitialize) Unwrap() error {
+	return err.Cause
+}
+
 // wrapOpenIDConnectInitializeError is used to wrap the error but this cannot be done in modules/auth/oauth2
 // inside oauth2: import cycle not allowed models -> modules/auth/oauth2 -> models
 func wrapOpenIDConnectInitializeError(err error, providerName string, source *Source) error {