Add initial carddav support

crates/carddav/src/addressbook/methods/mkcol.rs

@@ -0,0 +1,90 @@
+use crate::Error;
+use actix_web::web::Path;
+use actix_web::{web::Data, HttpResponse};
+use rustical_store::model::Addressbook;
+use rustical_store::{auth::User, AddressbookStore};
+use serde::{Deserialize, Serialize};
+use tokio::sync::RwLock;
+
+#[derive(Deserialize, Serialize, Clone, Debug)]
+#[serde(rename_all = "kebab-case")]
+pub struct Resourcetype {
+    #[serde(rename = "CARD:addressbook", alias = "addressbook")]
+    addressbook: Option<()>,
+    collection: Option<()>,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+#[serde(rename_all = "kebab-case")]
+pub struct MkcolAddressbookProp {
+    resourcetype: Option<Resourcetype>,
+    displayname: Option<String>,
+    description: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct PropElement<T: Serialize> {
+    prop: T,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+#[serde(rename_all = "kebab-case")]
+#[serde(rename = "mkcol")]
+struct MkcolRequest {
+    set: PropElement<MkcolAddressbookProp>,
+}
+
+pub async fn route_mkcol<AS: AddressbookStore + ?Sized>(
+    path: Path<(String, String)>,
+    body: String,
+    user: User,
+    store: Data<RwLock<AS>>,
+) -> Result<HttpResponse, Error> {
+    let (principal, addressbook_id) = path.into_inner();
+    if principal != user.id {
+        return Err(Error::Unauthorized);
+    }
+
+    let request: MkcolRequest = quick_xml::de::from_str(&body)?;
+    let request = request.set.prop;
+
+    let addressbook = Addressbook {
+        id: addressbook_id.to_owned(),
+        principal: principal.to_owned(),
+        displayname: request.displayname,
+        description: request.description,
+        deleted_at: None,
+        synctoken: 0,
+    };
+
+    match store
+        .read()
+        .await
+        .get_addressbook(&principal, &addressbook_id)
+        .await
+    {
+        Err(rustical_store::Error::NotFound) => {
+            // No conflict, no worries
+        }
+        Ok(_) => {
+            // oh no, there's a conflict
+            return Ok(HttpResponse::Conflict().body("An addressbook already exists at this URI"));
+        }
+        Err(err) => {
+            // some other error
+            return Err(err.into());
+        }
+    }
+
+    match store.write().await.insert_addressbook(addressbook).await {
+        // TODO: The spec says we should return a mkcol-response.
+        // However, it works without one but breaks on iPadOS when using an empty one :)
+        Ok(()) => Ok(HttpResponse::Created()
+            .insert_header(("Cache-Control", "no-cache"))
+            .body("")),
+        Err(err) => {
+            dbg!(err.to_string());
+            Err(err.into())
+        }
+    }
+}