feat: enable iframe use (#4766)

* feat: enable iframe use

* cleanup

* fix mocks

* fix linting

* docs: add iframe usage to solution scenarios configurations

* improve api

* feat(console): security policy

* description

* remove unnecessary line

* disable input button and urls when not enabled

* add image to docs

Co-authored-by: Max Peintner <max@caos.ch>
Co-authored-by: Fabi <38692350+hifabienne@users.noreply.github.com>

internal/command/instance_policy_security.go

@@ -0,0 +1,59 @@
+package command
+
+import (
+	"context"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
+	"github.com/zitadel/zitadel/internal/command/preparation"
+	"github.com/zitadel/zitadel/internal/domain"
+	"github.com/zitadel/zitadel/internal/eventstore"
+	"github.com/zitadel/zitadel/internal/repository/instance"
+)
+
+func (c *Commands) SetSecurityPolicy(ctx context.Context, enabled bool, allowedOrigins []string) (*domain.ObjectDetails, error) {
+	instanceAgg := instance.NewAggregate(authz.GetInstance(ctx).InstanceID())
+	validation := c.prepareSetSecurityPolicy(instanceAgg, enabled, allowedOrigins)
+	cmds, err := preparation.PrepareCommands(ctx, c.eventstore.Filter, validation)
+	if err != nil {
+		return nil, err
+	}
+	events, err := c.eventstore.Push(ctx, cmds...)
+	if err != nil {
+		return nil, err
+	}
+	return &domain.ObjectDetails{
+		Sequence:      events[len(events)-1].Sequence(),
+		EventDate:     events[len(events)-1].CreationDate(),
+		ResourceOwner: events[len(events)-1].Aggregate().InstanceID,
+	}, nil
+}
+
+func (c *Commands) prepareSetSecurityPolicy(a *instance.Aggregate, enabled bool, allowedOrigins []string) preparation.Validation {
+	return func() (preparation.CreateCommands, error) {
+		return func(ctx context.Context, filter preparation.FilterToQueryReducer) ([]eventstore.Command, error) {
+			writeModel, err := c.getSecurityPolicyWriteModel(ctx, filter)
+			if err != nil {
+				return nil, err
+			}
+			cmd, err := writeModel.NewSetEvent(ctx, &a.Aggregate, enabled, allowedOrigins)
+			if err != nil {
+				return nil, err
+			}
+			return []eventstore.Command{cmd}, nil
+		}, nil
+	}
+}
+
+func (c *Commands) getSecurityPolicyWriteModel(ctx context.Context, filter preparation.FilterToQueryReducer) (_ *InstanceSecurityPolicyWriteModel, err error) {
+	writeModel := NewInstanceSecurityPolicyWriteModel(ctx)
+	events, err := filter(ctx, writeModel.Query())
+	if err != nil {
+		return nil, err
+	}
+	if len(events) == 0 {
+		return writeModel, nil
+	}
+	writeModel.AppendEvents(events...)
+	err = writeModel.Reduce()
+	return writeModel, err
+}