cephfs refactoring + make home layout configurable (#4911)

changelog/unreleased/ceph-refactoring.md

@@ -0,0 +1,3 @@
+Enhancement: cephfs refactoring + make home layout configurable
+
+https://github.com/cs3org/reva/pull/4911

changelog/unreleased/enhance-ceph.md

@@ -0,0 +1,3 @@
+Enhancement: Refactor Ceph code
+
+https://github.com/cs3org/reva/pull/4824

go.mod

@@ -74,6 +74,7 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bmizerany/pat v0.0.0-20210406213842-e4b6760bdd6f // indirect
+	github.com/cern-eos/go-eosgrpc v0.0.0-20240812132646-f105d2304f38 // indirect
 	github.com/cespare/xxhash v1.1.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect

internal/grpc/services/gateway/gateway.go

@@ -71,6 +71,7 @@ type config struct {
 	EtagCacheTTL        int                               `mapstructure:"etag_cache_ttl"`
 	AllowedUserAgents   map[string][]string               `mapstructure:"allowed_user_agents"` // map[path][]user-agent
 	CreateHomeCacheTTL  int                               `mapstructure:"create_home_cache_ttl"`
+	HomeLayout          string                            `mapstructure:"home_layout"`
 }
 
 // sets defaults.
@@ -111,6 +112,11 @@ func (c *config) ApplyDefaults() {
 	if c.TransferExpires == 0 {
 		c.TransferExpires = 100 * 60 // seconds
 	}
+
+	// default to /home
+	if c.HomeLayout == "" {
+		c.HomeLayout = "/home"
+	}
 }
 
 type svc struct {