caldav: Refactoring

crates/caldav/src/event/methods.rs

@@ -0,0 +1,98 @@
+use crate::CalDavContext;
+use actix_web::http::StatusCode;
+use actix_web::web::{Data, Path};
+use actix_web::{HttpResponse, ResponseError};
+use rustical_auth::{AuthInfoExtractor, CheckAuthentication};
+use rustical_store::calendar::CalendarStore;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error(transparent)]
+    Other(#[from] anyhow::Error),
+}
+
+impl ResponseError for Error {
+    fn status_code(&self) -> actix_web::http::StatusCode {
+        match self {
+            Self::Other(_) => StatusCode::INTERNAL_SERVER_ERROR,
+        }
+    }
+    fn error_response(&self) -> HttpResponse<actix_web::body::BoxBody> {
+        HttpResponse::build(self.status_code()).body(self.to_string())
+    }
+}
+
+pub async fn delete_event<A: CheckAuthentication, C: CalendarStore + ?Sized>(
+    context: Data<CalDavContext<C>>,
+    path: Path<(String, String, String)>,
+    auth: AuthInfoExtractor<A>,
+) -> Result<HttpResponse, Error> {
+    let _user = auth.inner.user_id;
+    // TODO: verify whether user is authorized
+    let (_principal, mut cid, uid) = path.into_inner();
+    if cid.ends_with(".ics") {
+        cid.truncate(cid.len() - 4);
+    }
+    context.store.write().await.delete_event(&cid, &uid).await?;
+
+    Ok(HttpResponse::Ok().body(""))
+}
+
+pub async fn get_event<A: CheckAuthentication, C: CalendarStore + ?Sized>(
+    context: Data<CalDavContext<C>>,
+    path: Path<(String, String, String)>,
+    auth: AuthInfoExtractor<A>,
+) -> Result<HttpResponse, Error> {
+    // TODO: verify whether user is authorized
+    let (principal, cid, mut uid) = path.into_inner();
+
+    if auth.inner.user_id != principal {
+        return Ok(HttpResponse::Unauthorized().body(""));
+    }
+
+    let calendar = context.store.read().await.get_calendar(&cid).await?;
+    if auth.inner.user_id != calendar.owner {
+        return Ok(HttpResponse::Unauthorized().body(""));
+    }
+
+    if uid.ends_with(".ics") {
+        uid.truncate(uid.len() - 4);
+    }
+    let event = context.store.read().await.get_event(&cid, &uid).await?;
+
+    Ok(HttpResponse::Ok()
+        .insert_header(("ETag", event.get_etag()))
+        .body(event.get_ics().to_owned()))
+}
+
+pub async fn put_event<A: CheckAuthentication, C: CalendarStore + ?Sized>(
+    context: Data<CalDavContext<C>>,
+    path: Path<(String, String, String)>,
+    body: String,
+    auth: AuthInfoExtractor<A>,
+) -> Result<HttpResponse, Error> {
+    let (principal, cid, mut uid) = path.into_inner();
+    let auth_info = auth.inner;
+    if auth_info.user_id != principal {
+        return Ok(HttpResponse::Unauthorized().body(""));
+    }
+
+    let calendar = context.store.read().await.get_calendar(&cid).await?;
+    if auth_info.user_id != calendar.owner {
+        return Ok(HttpResponse::Unauthorized().body(""));
+    }
+
+    // Incredibly bodged method of normalising the uid but works for a prototype
+    if uid.ends_with(".ics") {
+        uid.truncate(uid.len() - 4);
+    }
+    context
+        .store
+        .write()
+        .await
+        .upsert_event(cid, uid, body)
+        .await?;
+
+    Ok(HttpResponse::Ok().body(""))
+}