diff --git a/crates/caldav/src/calendar/resource.rs b/crates/caldav/src/calendar/resource.rs
index 1959427..5e2a707 100644
--- a/crates/caldav/src/calendar/resource.rs
+++ b/crates/caldav/src/calendar/resource.rs
@@ -15,6 +15,7 @@ use async_trait::async_trait;
 use derive_more::derive::{From, Into};
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use rustical_store::{Calendar, CalendarStore};
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
@@ -256,8 +257,8 @@ impl<C: CalendarStore + ?Sized> ResourceService for CalendarResourceService<C> {
     type Resource = CalendarResource;
     type Error = Error;
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         let calendar = self
diff --git a/crates/caldav/src/calendar_object/resource.rs b/crates/caldav/src/calendar_object/resource.rs
index 1a05c7e..9985860 100644
--- a/crates/caldav/src/calendar_object/resource.rs
+++ b/crates/caldav/src/calendar_object/resource.rs
@@ -4,7 +4,7 @@ use actix_web::{dev::ResourceMap, web::Data, HttpRequest};
 use async_trait::async_trait;
 use derive_more::derive::{From, Into};
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
-use rustical_store::{CalendarObject, CalendarStore};
+use rustical_store::{auth::User, CalendarObject, CalendarStore};
 use serde::{Deserialize, Serialize};
 use std::sync::Arc;
 use strum::{EnumString, VariantNames};
@@ -132,8 +132,8 @@ impl<C: CalendarStore + ?Sized> ResourceService for CalendarObjectResourceServic
         })
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         let event = self
diff --git a/crates/caldav/src/principal/mod.rs b/crates/caldav/src/principal/mod.rs
index 80c5737..5efeee4 100644
--- a/crates/caldav/src/principal/mod.rs
+++ b/crates/caldav/src/principal/mod.rs
@@ -6,6 +6,7 @@ use actix_web::HttpRequest;
 use async_trait::async_trait;
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use rustical_store::CalendarStore;
 use serde::{Deserialize, Serialize};
 use std::sync::Arc;
@@ -122,8 +123,8 @@ impl<C: CalendarStore + ?Sized> ResourceService for PrincipalResourceService<C>
         })
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         Ok(PrincipalResource {
diff --git a/crates/caldav/src/root/mod.rs b/crates/caldav/src/root/mod.rs
index c52b148..e14f43a 100644
--- a/crates/caldav/src/root/mod.rs
+++ b/crates/caldav/src/root/mod.rs
@@ -5,6 +5,7 @@ use actix_web::HttpRequest;
 use async_trait::async_trait;
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use serde::{Deserialize, Serialize};
 use strum::{EnumString, VariantNames};
 
@@ -85,8 +86,8 @@ impl ResourceService for RootResourceService {
         Ok(Self)
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        Ok(RootResource { principal })
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        Ok(RootResource { principal: user.id })
     }
 
     async fn save_resource(&self, _file: Self::Resource) -> Result<(), Self::Error> {
diff --git a/crates/carddav/src/address_object/resource.rs b/crates/carddav/src/address_object/resource.rs
index e031bba..e71101f 100644
--- a/crates/carddav/src/address_object/resource.rs
+++ b/crates/carddav/src/address_object/resource.rs
@@ -3,7 +3,7 @@ use actix_web::{dev::ResourceMap, web::Data, HttpRequest};
 use async_trait::async_trait;
 use derive_more::derive::{From, Into};
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
-use rustical_store::{AddressObject, AddressbookStore};
+use rustical_store::{auth::User, AddressObject, AddressbookStore};
 use serde::{Deserialize, Serialize};
 use std::sync::Arc;
 use strum::{EnumString, VariantNames};
@@ -133,8 +133,8 @@ impl<AS: AddressbookStore + ?Sized> ResourceService for AddressObjectResourceSer
         })
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         let event = self
diff --git a/crates/carddav/src/addressbook/resource.rs b/crates/carddav/src/addressbook/resource.rs
index faa3bd6..de966b9 100644
--- a/crates/carddav/src/addressbook/resource.rs
+++ b/crates/carddav/src/addressbook/resource.rs
@@ -12,6 +12,7 @@ use async_trait::async_trait;
 use derive_more::derive::{From, Into};
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use rustical_store::{Addressbook, AddressbookStore};
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
@@ -196,8 +197,8 @@ impl<AS: AddressbookStore + ?Sized> ResourceService for AddressbookResourceServi
     type Resource = AddressbookResource;
     type Error = Error;
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         let addressbook = self
diff --git a/crates/carddav/src/principal/mod.rs b/crates/carddav/src/principal/mod.rs
index 42a9736..a01f7a4 100644
--- a/crates/carddav/src/principal/mod.rs
+++ b/crates/carddav/src/principal/mod.rs
@@ -6,6 +6,7 @@ use actix_web::HttpRequest;
 use async_trait::async_trait;
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use rustical_store::AddressbookStore;
 use serde::{Deserialize, Serialize};
 use std::sync::Arc;
@@ -121,8 +122,8 @@ impl<A: AddressbookStore + ?Sized> ResourceService for PrincipalResourceService<
         })
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        if self.principal != principal {
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        if self.principal != user.id {
             return Err(Error::Unauthorized);
         }
         Ok(PrincipalResource {
diff --git a/crates/carddav/src/root/mod.rs b/crates/carddav/src/root/mod.rs
index eab037e..41b4e0d 100644
--- a/crates/carddav/src/root/mod.rs
+++ b/crates/carddav/src/root/mod.rs
@@ -5,6 +5,7 @@ use actix_web::HttpRequest;
 use async_trait::async_trait;
 use rustical_dav::resource::{InvalidProperty, Resource, ResourceService};
 use rustical_dav::xml::HrefElement;
+use rustical_store::auth::User;
 use serde::{Deserialize, Serialize};
 use strum::{EnumString, VariantNames};
 
@@ -85,8 +86,8 @@ impl ResourceService for RootResourceService {
         Ok(Self)
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error> {
-        Ok(RootResource { principal })
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error> {
+        Ok(RootResource { principal: user.id })
     }
 
     async fn save_resource(&self, _file: Self::Resource) -> Result<(), Self::Error> {
diff --git a/crates/dav/src/methods/propfind.rs b/crates/dav/src/methods/propfind.rs
index a24c37a..f1d3e50 100644
--- a/crates/dav/src/methods/propfind.rs
+++ b/crates/dav/src/methods/propfind.rs
@@ -79,7 +79,7 @@ pub async fn route_propfind<R: ResourceService>(
         }
     }
 
-    let resource = resource_service.get_resource(user.id).await?;
+    let resource = resource_service.get_resource(user).await?;
     let response = resource.propfind(req.path(), props, req.resource_map())?;
 
     Ok(MultistatusElement {
diff --git a/crates/dav/src/methods/proppatch.rs b/crates/dav/src/methods/proppatch.rs
index ecc5076..1e47689 100644
--- a/crates/dav/src/methods/proppatch.rs
+++ b/crates/dav/src/methods/proppatch.rs
@@ -76,7 +76,7 @@ pub async fn route_proppatch<R: ResourceService>(
         })
         .collect();
 
-    let mut resource = resource_service.get_resource(user.id).await?;
+    let mut resource = resource_service.get_resource(user).await?;
 
     let mut props_ok = Vec::new();
     let mut props_conflict = Vec::new();
diff --git a/crates/dav/src/resource.rs b/crates/dav/src/resource.rs
index d3413b4..be955e5 100644
--- a/crates/dav/src/resource.rs
+++ b/crates/dav/src/resource.rs
@@ -11,6 +11,7 @@ use actix_web::{http::StatusCode, HttpRequest, ResponseError};
 use async_trait::async_trait;
 use core::fmt;
 use itertools::Itertools;
+use rustical_store::auth::User;
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
 use strum::VariantNames;
@@ -153,7 +154,7 @@ pub trait ResourceService: Sized + 'static {
         Ok(vec![])
     }
 
-    async fn get_resource(&self, principal: String) -> Result<Self::Resource, Self::Error>;
+    async fn get_resource(&self, user: User) -> Result<Self::Resource, Self::Error>;
     async fn save_resource(&self, file: Self::Resource) -> Result<(), Self::Error>;
     async fn delete_resource(&self, _use_trashbin: bool) -> Result<(), Self::Error> {
         Err(crate::Error::Unauthorized.into())