fix: use triggering origin for notification links (#6628)

* take baseurl if saved on event

* refactor: make es mocks reusable

* Revert "refactor: make es mocks reusable"

This reverts commit 434ce12a6a.

* make messages testable

* test asset url

* fmt

* fmt

* simplify notification.Start

* test url combinations

* support init code added

* support password changed

* support reset pw

* support user domain claimed

* support add pwless login

* support verify phone

* Revert "support verify phone"

This reverts commit e40503303e.

* save trigger origin from ctx

* add ready for review check

* camel

* test email otp

* fix variable naming

* fix DefaultOTPEmailURLV2

* Revert "fix DefaultOTPEmailURLV2"

This reverts commit fa34d4d2a8.

* fix email otp challenged test

* fix email otp challenged test

* pass origin in login and gateway requests

* take origin from header

* take x-forwarded if present

* Update internal/notification/handlers/queries.go

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

* Update internal/notification/handlers/commands.go

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

* move origin header to ctx if available

* generate

* cleanup

* use forwarded header

* support X-Forwarded-* headers

* standardize context handling

* fix linting

---------

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

cmd/start/start.go

@@ -235,7 +235,6 @@ func startZitadel(config *Config, masterKey string, server chan<- *Server) error
 		commands,
 		queries,
 		eventstoreClient,
-		assets.AssetAPIFromDomain(config.ExternalSecure, config.ExternalPort),
 		config.Login.DefaultOTPEmailURLV2,
 		config.SystemDefaults.Notifications.FileSystemPath,
 		keys.User,
@@ -311,6 +310,8 @@ func startAPIs(
 		authZRepo,
 		queries,
 	}
+	// always set the origin in the context if available in the http headers, no matter for what protocol
+	router.Use(middleware.OriginHandler)
 	verifier := internal_authz.Start(repo, http_util.BuildHTTP(config.ExternalDomain, config.ExternalPort, config.ExternalSecure), config.SystemAPIUsers)
 	tlsConfig, err := config.TLS.Config()
 	if err != nil {
@@ -444,7 +445,6 @@ func startAPIs(
 	if err := apis.RegisterService(ctx, oidc_v2.CreateServer(commands, queries, oidcProvider, config.ExternalSecure)); err != nil {
 		return err
 	}
-
 	// handle grpc at last to be able to handle the root, because grpc and gateway require a lot of different prefixes
 	apis.RouteGRPC()
 	return nil