Don't create dummy index.html for webapp #25

Downstream does not require webapp anymore

changelog/unreleased/disable-identifier.md

@@ -0,0 +1,6 @@
+Change: Dummy index.html is not required anymore by upstream
+
+The workaround was required as identifier webapp was mandatory, but
+we serve it from memory. This also introduces --disable-identifier-webapp flag.
+
+https://github.com/owncloud/ocis-konnectd/issues/25

docs/getting-started.md

@@ -153,6 +153,9 @@ KONNECTD_ALLOW_CLIENT_GUESTS
 KONNECTD_ALLOW_DYNAMIC_CLIENT_REGISTRATION
 : Allow dynamic OAuth2 client registration
 
+KONNECTD_DISABLE_IDENTIFIER_WEBAPP
+: Disable built-in identifier-webapp to use a frontend hosted elsewhere. Per default we use the built-in webapp. If set to false --identifier-client-path must be provided, defaults to `true`
+
 
 #### Health
 
@@ -287,6 +290,9 @@ If you prefer to configure the service with commandline flags you can see the av
 --allow-dynamic-client-registration
 : Allow dynamic OAuth2 client registration
 
+--disable-identifier-webapp
+:  Disable built-in identifier-webapp to use a frontend hosted elsewhere. Per default we use the built-in webapp. If set to false --identifier-client-path must be provided, defaults to `true`
+
 
 #### Health
 

pkg/flagset/flagset.go

@@ -298,5 +298,12 @@ func ServerWithConfig(cfg *config.Config) []cli.Flag {
 			EnvVars:     []string{"KONNECTD_ALLOW_DYNAMIC_CLIENT_REGISTRATION"},
 			Destination: &cfg.Konnectd.AllowDynamicClientRegistration,
 		},
+		&cli.BoolFlag{
+			Name:        "disable-identifier-webapp",
+			Usage:       "Disable built-in identifier-webapp to use a frontend hosted elsewhere.",
+			EnvVars:     []string{"KONNECTD_DISABLE_IDENTIFIER_WEBAPP"},
+			Value:       true,
+			Destination: &cfg.Konnectd.IdentifierWebAppDisabled,
+		},
 	}
 }

pkg/service/v0/service.go

@@ -70,20 +70,6 @@ func NewService(opts ...Option) Service {
 }
 
 func createConfigsIfNotExist(assets http.FileSystem) error {
-	err := os.MkdirAll("/var/tmp/konnectd", 0700)
-	if err != nil {
-		return err
-	}
-
-	// This empty file is currently required to start konnect
-	// See: https://github.com/Kopano-dev/konnect/issues/25
-	index, err := os.Create("/var/tmp/konnectd/index.html")
-	if err != nil {
-		return err
-	}
-
-	index.Close()
-
 	if _, err := os.Stat("./config"); os.IsNotExist(err) {
 		if err := os.Mkdir("./config", 0700); err != nil {
 			return err