feat: saml application configuration for login version (#9351)

# Which Problems Are Solved

OIDC applications can configure the used login version, which is
currently not possible for SAML applications.

# How the Problems Are Solved

Add the same functionality dependent on the feature-flag for SAML
applications.

# Additional Changes

None

# Additional Context

Closes #9267
Follow up issue for frontend changes #9354

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>

cmd/setup/48.go

@@ -0,0 +1,27 @@
+package setup
+
+import (
+	"context"
+	_ "embed"
+
+	"github.com/zitadel/zitadel/internal/database"
+	"github.com/zitadel/zitadel/internal/eventstore"
+)
+
+var (
+	//go:embed 48.sql
+	addSAMLAppLoginVersion string
+)
+
+type Apps7SAMLConfigsLoginVersion struct {
+	dbClient *database.DB
+}
+
+func (mig *Apps7SAMLConfigsLoginVersion) Execute(ctx context.Context, _ eventstore.Event) error {
+	_, err := mig.dbClient.ExecContext(ctx, addSAMLAppLoginVersion)
+	return err
+}
+
+func (mig *Apps7SAMLConfigsLoginVersion) String() string {
+	return "48_apps7_saml_configs_login_version"
+}

cmd/setup/48.sql

@@ -0,0 +1,2 @@
+ALTER TABLE IF EXISTS projections.apps7_saml_configs ADD COLUMN IF NOT EXISTS login_version SMALLINT;
+ALTER TABLE IF EXISTS projections.apps7_saml_configs ADD COLUMN IF NOT EXISTS login_base_uri TEXT;

cmd/setup/config.go

@@ -136,6 +136,7 @@ type Steps struct {
 	s45CorrectProjectOwners                 *CorrectProjectOwners
 	s46InitPermissionFunctions              *InitPermissionFunctions
 	s47FillMembershipFields                 *FillMembershipFields
+	s48Apps7SAMLConfigsLoginVersion         *Apps7SAMLConfigsLoginVersion
 }
 
 func MustNewSteps(v *viper.Viper) *Steps {

cmd/setup/setup.go

@@ -173,6 +173,7 @@ func Setup(ctx context.Context, config *Config, steps *Steps, masterKey string)
 	steps.s45CorrectProjectOwners = &CorrectProjectOwners{eventstore: eventstoreClient}
 	steps.s46InitPermissionFunctions = &InitPermissionFunctions{eventstoreClient: dbClient}
 	steps.s47FillMembershipFields = &FillMembershipFields{eventstore: eventstoreClient}
+	steps.s48Apps7SAMLConfigsLoginVersion = &Apps7SAMLConfigsLoginVersion{dbClient: dbClient}
 
 	err = projection.Create(ctx, dbClient, eventstoreClient, config.Projections, nil, nil, nil)
 	logging.OnError(err).Fatal("unable to start projections")
@@ -256,6 +257,7 @@ func Setup(ctx context.Context, config *Config, steps *Steps, masterKey string)
 		steps.s37Apps7OIDConfigsBackChannelLogoutURI,
 		steps.s42Apps7OIDCConfigsLoginVersion,
 		steps.s43CreateFieldsDomainIndex,
+		steps.s48Apps7SAMLConfigsLoginVersion,
 	} {
 		mustExecuteMigration(ctx, eventstoreClient, step, "migration failed")
 	}