chore(provider): add provider name to error message

adds the idp config provider name to error message when
the provider host cannot be parsed from metadata url or
fetching metadata document fails.

Closes: #1445

backend/ee/saml/handler.go

@@ -33,16 +33,16 @@ func NewSamlHandler(cfg *config.Config, persister persistence.Persister, session
 	providers := make([]provider.ServiceProvider, 0)
 	for _, idpConfig := range cfg.Saml.IdentityProviders {
 		if idpConfig.Enabled {
-			name := ""
-			name, err := parseProviderFromMetadataUrl(idpConfig.MetadataUrl)
+			hostName := ""
+			hostName, err := parseProviderFromMetadataUrl(idpConfig.MetadataUrl)
 			if err != nil {
-				fmt.Printf("failed to parse provider from metadata url: %v\n", err)
+				fmt.Printf("failed to parse provider '%s' from metadata url: %v\n", idpConfig.Name, err)
 				continue
 			}
 
-			newProvider, err := provider.GetProvider(name, cfg, idpConfig, persister.GetSamlCertificatePersister())
+			newProvider, err := provider.GetProvider(hostName, cfg, idpConfig, persister.GetSamlCertificatePersister())
 			if err != nil {
-				fmt.Printf("failed to initialize provider: %v\n", err)
+				fmt.Printf("failed to initialize provider '%s': %v\n", idpConfig.Name, err)
 				continue
 			}