add secureview flag when listing apps via http

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

changelog/unreleased/add-providerinfo-secure-view-flag.md

@@ -0,0 +1,5 @@
+Enhancement: add secureview flag when listing apps via http
+
+To allow clients to see which application supports secure view we add a flag to the http response when the app name matches a configured secure view app. The app can be configured by setting `FRONTEND_APP_HANDLER_SECURE_VIEW_APP` to the name of the app registered as a CS3 app provider.
+
+https://github.com/owncloud/ocis/pull/9277

services/frontend/pkg/config/config.go

@@ -107,8 +107,9 @@ type Auth struct {
 }
 
 type AppHandler struct {
-	Prefix   string `yaml:"-"`
-	Insecure bool   `yaml:"insecure" env:"OCIS_INSECURE;FRONTEND_APP_HANDLER_INSECURE" desc:"Allow insecure connections to the frontend." introductionVersion:"pre5.0"`
+	Prefix        string `yaml:"-"`
+	Insecure      bool   `yaml:"insecure" env:"OCIS_INSECURE;FRONTEND_APP_HANDLER_INSECURE" desc:"Allow insecure connections to the frontend." introductionVersion:"pre5.0"`
+	SecureViewApp string `yaml:"secure_view_app" env:"FRONTEND_APP_HANDLER_SECURE_VIEW_APP" desc:"Name of the app to use for secure view. Should match the Name configured for the CS3 app provider." introductionVersion:"pre5.1"`
 }
 
 type Archiver struct {

services/frontend/pkg/revaconfig/config.go

@@ -137,6 +137,7 @@ func FrontendConfigFromStruct(cfg *config.Config, logger log.Logger) (map[string
 							"contextRouteName": "files-spaces-personal", // TODO: remove when https://github.com/owncloud/web/pull/7437 arrived in oCIS
 						},
 					},
+					"secure_view_app": cfg.AppHandler.SecureViewApp,
 				},
 				"archiver": map[string]interface{}{
 					"prefix":        cfg.Archiver.Prefix,