feat: restrict languages (#6931)

* feat: return 404 or 409 if org reg disallowed

* fix: system limit permissions

* feat: add iam limits api

* feat: disallow public org registrations on default instance

* add integration test

* test: integration

* fix test

* docs: describe public org registrations

* avoid updating docs deps

* fix system limits integration test

* silence integration tests

* fix linting

* ignore strange linter complaints

* review

* improve reset properties naming

* redefine the api

* use restrictions aggregate

* test query

* simplify and test projection

* test commands

* fix unit tests

* move integration test

* support restrictions on default instance

* also test GetRestrictions

* self review

* lint

* abstract away resource owner

* fix tests

* configure supported languages

* fix allowed languages

* fix tests

* default lang must not be restricted

* preferred language must be allowed

* change preferred languages

* check languages everywhere

* lint

* test command side

* lint

* add integration test

* add integration test

* restrict supported ui locales

* lint

* lint

* cleanup

* lint

* allow undefined preferred language

* fix integration tests

* update main

* fix env var

* ignore linter

* ignore linter

* improve integration test config

* reduce cognitive complexity

* compile

* check for duplicates

* remove useless restriction checks

* review

* revert restriction renaming

* fix language restrictions

* lint

* generate

* allow custom texts for supported langs for now

* fix tests

* cleanup

* cleanup

* cleanup

* lint

* unsupported preferred lang is allowed

* fix integration test

* finish reverting to old property name

* finish reverting to old property name

* load languages

* refactor(i18n): centralize translators and fs

* lint

* amplify no validations on preferred languages

* fix integration test

* lint

* fix resetting allowed languages

* test unchanged restrictions

internal/api/grpc/admin/server_integration_test.go

@@ -8,12 +8,17 @@ import (
 	"testing"
 	"time"
 
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
 	"github.com/zitadel/zitadel/internal/integration"
 )
 
 var (
 	AdminCTX, SystemCTX context.Context
 	Tester              *integration.Tester
+	// NoopAssertionT is useful in combination with assert.Eventuallyf to use testify assertions in a callback
+	NoopAssertionT = new(noopAssertionT)
 )
 
 func TestMain(m *testing.M) {
@@ -30,3 +35,29 @@ func TestMain(m *testing.M) {
 		return m.Run()
 	}())
 }
+
+func await(t *testing.T, ctx context.Context, cb func() bool) {
+	deadline, ok := ctx.Deadline()
+	require.True(t, ok, "context must have deadline")
+	assert.Eventuallyf(
+		t,
+		func() bool {
+			defer func() {
+				// Panics are not recovered and don't mark the test as failed, so we need to do that ourselves
+				require.Nil(t, recover(), "panic in await callback")
+			}()
+			return cb()
+		},
+		time.Until(deadline),
+		100*time.Millisecond,
+		"awaiting successful callback failed",
+	)
+}
+
+var _ assert.TestingT = (*noopAssertionT)(nil)
+
+type noopAssertionT struct{}
+
+func (*noopAssertionT) FailNow() {}
+
+func (*noopAssertionT) Errorf(string, ...interface{}) {}