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/ui/login/register_org_handler.go

@@ -1,7 +1,6 @@
 package login
 
 import (
-	"context"
 	"net/http"
 
 	"github.com/zitadel/zitadel/internal/api/authz"
@@ -39,8 +38,12 @@ type registerOrgData struct {
 }
 
 func (l *Login) handleRegisterOrg(w http.ResponseWriter, r *http.Request) {
-	disallowed, err := l.publicOrgRegistrationIsDisallowed(r.Context())
-	if disallowed || err != nil {
+	restrictions, err := l.query.GetInstanceRestrictions(r.Context())
+	if err != nil {
+		l.renderError(w, r, nil, err)
+		return
+	}
+	if restrictions.DisallowPublicOrgRegistration {
 		w.WriteHeader(http.StatusNotFound)
 		return
 	}
@@ -54,8 +57,12 @@ func (l *Login) handleRegisterOrg(w http.ResponseWriter, r *http.Request) {
 }
 
 func (l *Login) handleRegisterOrgCheck(w http.ResponseWriter, r *http.Request) {
-	disallowed, err := l.publicOrgRegistrationIsDisallowed(r.Context())
-	if disallowed || err != nil {
+	restrictions, err := l.query.GetInstanceRestrictions(r.Context())
+	if err != nil {
+		l.renderError(w, r, nil, err)
+		return
+	}
+	if restrictions.DisallowPublicOrgRegistration {
 		w.WriteHeader(http.StatusConflict)
 		return
 	}
@@ -99,7 +106,7 @@ func (l *Login) renderRegisterOrg(w http.ResponseWriter, r *http.Request, authRe
 	}
 	translator := l.getTranslator(r.Context(), authRequest)
 	data := registerOrgData{
-		baseData:            l.getBaseData(r, authRequest, "RegistrationOrg.Title", "RegistrationOrg.Description", errID, errMessage),
+		baseData:            l.getBaseData(r, authRequest, translator, "RegistrationOrg.Title", "RegistrationOrg.Description", errID, errMessage),
 		registerOrgFormData: *formData,
 	}
 	pwPolicy := l.getPasswordComplexityPolicy(r, "0")
@@ -130,11 +137,6 @@ func (l *Login) renderRegisterOrg(w http.ResponseWriter, r *http.Request, authRe
 	l.renderer.RenderTemplate(w, r, translator, l.renderer.Templates[tmplRegisterOrg], data, nil)
 }
 
-func (l *Login) publicOrgRegistrationIsDisallowed(ctx context.Context) (bool, error) {
-	restrictions, err := l.query.GetInstanceRestrictions(ctx)
-	return restrictions.DisallowPublicOrgRegistration, err
-}
-
 func (d registerOrgFormData) toUserDomain() *domain.Human {
 	if d.Username == "" {
 		d.Username = string(d.Email)