2026-03-04 14:02:15 +01:00
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use axum::{
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body::Body,
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http::{HeaderName, Request, StatusCode, header},
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response::Response,
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};
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use quick_xml::{
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Writer,
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events::{BytesEnd, BytesStart, Event},
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};
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use std::sync::Arc;
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use crate::application::ports::trash_ports::TrashUseCase;
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use crate::common::di::AppState;
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use crate::interfaces::errors::AppError;
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use crate::interfaces::middleware::auth::CurrentUser;
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use crate::interfaces::nextcloud::webdav_handler::{
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format_oc_id, resolve_file_id, resolve_folder_id, write_text_element,
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};
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const HEADER_DAV: HeaderName = HeaderName::from_static("dav");
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/// Dispatch Nextcloud WebDAV trashbin request to the appropriate handler.
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///
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/// `subpath` is everything after `/remote.php/dav/trashbin/{user}/`.
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pub async fn handle_nc_trashbin(
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state: Arc<AppState>,
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req: Request<Body>,
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user: CurrentUser,
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subpath: String,
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) -> Result<Response<Body>, AppError> {
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let method = req.method().clone();
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let subpath_trimmed = subpath.trim_matches('/');
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match method.as_str() {
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"OPTIONS" => handle_options(),
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"PROPFIND" if subpath_trimmed == "trash" || subpath_trimmed.is_empty() => {
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handle_propfind(state, &user).await
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}
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"MOVE" if subpath_trimmed.starts_with("trash/") => {
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handle_restore(state, &user, subpath_trimmed).await
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}
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"DELETE" if subpath_trimmed == "trash" || subpath_trimmed.is_empty() => {
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handle_empty_trash(state, &user).await
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}
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"DELETE" if subpath_trimmed.starts_with("trash/") => {
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handle_delete_permanent(state, &user, subpath_trimmed).await
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}
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_ => Ok(Response::builder()
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.status(StatusCode::METHOD_NOT_ALLOWED)
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.body(Body::empty())
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.unwrap()),
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}
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}
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// ──────────────────── OPTIONS ────────────────────
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fn handle_options() -> Result<Response<Body>, AppError> {
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Ok(Response::builder()
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.status(StatusCode::OK)
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.header(HEADER_DAV, "1, 2, 3")
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.header(header::ALLOW, "OPTIONS, PROPFIND, MOVE, DELETE")
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.body(Body::empty())
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.unwrap())
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}
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// ──────────────────── PROPFIND (list trash) ────────────────────
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async fn handle_propfind(
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state: Arc<AppState>,
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user: &CurrentUser,
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) -> Result<Response<Body>, AppError> {
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let trash_svc = state
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.trash_service
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.as_ref()
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.ok_or_else(|| AppError::internal_error("Trash service not available"))?;
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let items = trash_svc
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2026-03-07 14:59:32 +01:00
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.get_trash_items(user.id)
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2026-03-04 14:02:15 +01:00
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.await
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.map_err(|e| AppError::internal_error(format!("Failed to list trash: {}", e)))?;
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let nc = state.nextcloud.as_ref();
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let file_id_svc = nc.map(|n| &n.file_ids);
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let mut buf = Vec::new();
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write_trashbin_multistatus(&mut buf, &items, &user.username, file_id_svc)
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.await
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.map_err(|e| AppError::internal_error(format!("XML generation failed: {}", e)))?;
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Ok(Response::builder()
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.status(StatusCode::MULTI_STATUS)
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.header(header::CONTENT_TYPE, "application/xml; charset=utf-8")
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.body(Body::from(buf))
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.unwrap())
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}
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// ──────────────────── MOVE (restore) ────────────────────
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async fn handle_restore(
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state: Arc<AppState>,
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user: &CurrentUser,
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subpath: &str,
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) -> Result<Response<Body>, AppError> {
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let id = extract_trash_id(subpath)?;
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let trash_svc = state
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.trash_service
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.as_ref()
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.ok_or_else(|| AppError::internal_error("Trash service not available"))?;
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trash_svc
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2026-03-07 14:59:32 +01:00
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.restore_item(&id, user.id)
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2026-03-04 14:02:15 +01:00
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.await
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.map_err(|e| AppError::internal_error(format!("Failed to restore item: {}", e)))?;
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Ok(Response::builder()
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.status(StatusCode::CREATED)
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.body(Body::empty())
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.unwrap())
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}
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// ──────────────────── DELETE (empty trash) ────────────────────
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async fn handle_empty_trash(
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state: Arc<AppState>,
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user: &CurrentUser,
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) -> Result<Response<Body>, AppError> {
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let trash_svc = state
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.trash_service
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.as_ref()
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.ok_or_else(|| AppError::internal_error("Trash service not available"))?;
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trash_svc
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2026-03-07 14:59:32 +01:00
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.empty_trash(user.id)
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2026-03-04 14:02:15 +01:00
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.await
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.map_err(|e| AppError::internal_error(format!("Failed to empty trash: {}", e)))?;
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Ok(Response::builder()
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.status(StatusCode::NO_CONTENT)
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.body(Body::empty())
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.unwrap())
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}
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// ──────────────────── DELETE (single item) ────────────────────
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async fn handle_delete_permanent(
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state: Arc<AppState>,
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user: &CurrentUser,
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subpath: &str,
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) -> Result<Response<Body>, AppError> {
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let id = extract_trash_id(subpath)?;
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let trash_svc = state
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.trash_service
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.as_ref()
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.ok_or_else(|| AppError::internal_error("Trash service not available"))?;
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trash_svc
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2026-03-07 14:59:32 +01:00
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.delete_permanently(&id, user.id)
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2026-03-04 14:02:15 +01:00
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.await
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.map_err(|e| {
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AppError::internal_error(format!("Failed to permanently delete item: {}", e))
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})?;
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Ok(Response::builder()
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.status(StatusCode::NO_CONTENT)
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.body(Body::empty())
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.unwrap())
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}
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// ────────────── Helpers ──────────────
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/// Extract the item ID from a trashbin subpath like `trash/{id}`.
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fn extract_trash_id(subpath: &str) -> Result<String, AppError> {
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// subpath is already trimmed, e.g. "trash/some-uuid"
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subpath
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.strip_prefix("trash/")
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.map(|s| s.trim_matches('/').to_string())
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.filter(|s| !s.is_empty())
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.ok_or_else(|| AppError::bad_request("Missing trash item ID in path"))
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}
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/// Infer MIME content type from filename extension.
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fn mime_from_name(name: &str) -> String {
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mime_guess::from_path(name)
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.first_or_octet_stream()
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.to_string()
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}
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/// Strip the "My Folder - {username}/" prefix from an original path to produce
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/// the Nextcloud-relative original location.
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fn strip_home_prefix<'a>(original_path: &'a str, username: &str) -> &'a str {
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let prefix = format!("My Folder - {}/", username);
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original_path.strip_prefix(&prefix).unwrap_or(original_path)
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}
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// ────────────── Trashbin PROPFIND XML Generation ──────────────
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use crate::application::dtos::trash_dto::TrashedItemDto;
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use crate::application::services::nextcloud_file_id_service::NextcloudFileIdService;
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/// Generate a complete Nextcloud-compatible multistatus XML response for the trashbin.
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async fn write_trashbin_multistatus<W: std::io::Write>(
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writer: W,
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items: &[TrashedItemDto],
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username: &str,
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file_id_svc: Option<&Arc<NextcloudFileIdService>>,
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) -> Result<(), String> {
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let mut xml = Writer::new(writer);
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// Root element with all required namespaces.
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let mut ms = BytesStart::new("d:multistatus");
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ms.push_attribute(("xmlns:d", "DAV:"));
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ms.push_attribute(("xmlns:oc", "http://owncloud.org/ns"));
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ms.push_attribute(("xmlns:nc", "http://nextcloud.org/ns"));
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xml.write_event(Event::Start(ms))
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.map_err(|e| e.to_string())?;
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// Root container entry for the trash collection itself.
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write_trash_root_response(&mut xml, username)?;
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// Individual trashed items.
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for item in items {
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write_trash_item_response(&mut xml, item, username, file_id_svc).await?;
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}
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xml.write_event(Event::End(BytesEnd::new("d:multistatus")))
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.map_err(|e| e.to_string())?;
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Ok(())
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}
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/// Write the root collection response entry for the trash folder.
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fn write_trash_root_response<W: std::io::Write>(
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xml: &mut Writer<W>,
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username: &str,
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) -> Result<(), String> {
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xml.write_event(Event::Start(BytesStart::new("d:response")))
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.map_err(|e| e.to_string())?;
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let href = format!("/remote.php/dav/trashbin/{}/trash/", username);
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write_text_element(xml, "d:href", &href)?;
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xml.write_event(Event::Start(BytesStart::new("d:propstat")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::Start(BytesStart::new("d:prop")))
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.map_err(|e| e.to_string())?;
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// resourcetype = collection
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xml.write_event(Event::Start(BytesStart::new("d:resourcetype")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::Empty(BytesStart::new("d:collection")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::End(BytesEnd::new("d:resourcetype")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::End(BytesEnd::new("d:prop")))
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.map_err(|e| e.to_string())?;
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write_text_element(xml, "d:status", "HTTP/1.1 200 OK")?;
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xml.write_event(Event::End(BytesEnd::new("d:propstat")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::End(BytesEnd::new("d:response")))
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.map_err(|e| e.to_string())?;
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Ok(())
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}
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/// Write a single trashed item as a `<d:response>` element.
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async fn write_trash_item_response<W: std::io::Write>(
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xml: &mut Writer<W>,
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item: &TrashedItemDto,
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username: &str,
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file_id_svc: Option<&Arc<NextcloudFileIdService>>,
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) -> Result<(), String> {
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xml.write_event(Event::Start(BytesStart::new("d:response")))
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.map_err(|e| e.to_string())?;
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// href
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let href = format!("/remote.php/dav/trashbin/{}/trash/{}", username, item.id);
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write_text_element(xml, "d:href", &href)?;
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xml.write_event(Event::Start(BytesStart::new("d:propstat")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::Start(BytesStart::new("d:prop")))
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.map_err(|e| e.to_string())?;
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// d:displayname
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write_text_element(xml, "d:displayname", &item.name)?;
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// d:getlastmodified
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write_text_element(xml, "d:getlastmodified", &item.trashed_at.to_rfc2822())?;
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// d:getetag
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write_text_element(xml, "d:getetag", &format!("\"{}\"", item.original_id))?;
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// d:resourcetype
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if item.item_type == "folder" {
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xml.write_event(Event::Start(BytesStart::new("d:resourcetype")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::Empty(BytesStart::new("d:collection")))
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.map_err(|e| e.to_string())?;
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xml.write_event(Event::End(BytesEnd::new("d:resourcetype")))
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.map_err(|e| e.to_string())?;
|
|
|
|
|
} else {
|
|
|
|
|
xml.write_event(Event::Empty(BytesStart::new("d:resourcetype")))
|
|
|
|
|
.map_err(|e| e.to_string())?;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// d:getcontenttype
|
|
|
|
|
let content_type = if item.item_type == "folder" {
|
|
|
|
|
"httpd/unix-directory".to_string()
|
|
|
|
|
} else {
|
|
|
|
|
mime_from_name(&item.name)
|
|
|
|
|
};
|
|
|
|
|
write_text_element(xml, "d:getcontenttype", &content_type)?;
|
|
|
|
|
|
|
|
|
|
// d:getcontentlength
|
|
|
|
|
write_text_element(xml, "d:getcontentlength", "0")?;
|
|
|
|
|
|
|
|
|
|
// oc:fileid and oc:id — resolve numeric ID via file_id service
|
|
|
|
|
let file_id = if item.item_type == "folder" {
|
|
|
|
|
resolve_folder_id(file_id_svc, &item.original_id).await
|
|
|
|
|
} else {
|
|
|
|
|
resolve_file_id(file_id_svc, &item.original_id).await
|
|
|
|
|
};
|
|
|
|
|
if let Some(id) = file_id {
|
|
|
|
|
write_text_element(xml, "oc:fileid", &id.to_string())?;
|
|
|
|
|
let oc_id = format_oc_id(id, file_id_svc);
|
|
|
|
|
write_text_element(xml, "oc:id", &oc_id)?;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// nc:trashbin-filename
|
|
|
|
|
write_text_element(xml, "nc:trashbin-filename", &item.name)?;
|
|
|
|
|
|
|
|
|
|
// nc:trashbin-original-location
|
|
|
|
|
let original_location = strip_home_prefix(&item.original_path, username);
|
|
|
|
|
write_text_element(xml, "nc:trashbin-original-location", original_location)?;
|
|
|
|
|
|
|
|
|
|
// nc:trashbin-deletion-time
|
|
|
|
|
write_text_element(
|
|
|
|
|
xml,
|
|
|
|
|
"nc:trashbin-deletion-time",
|
|
|
|
|
&item.trashed_at.timestamp().to_string(),
|
|
|
|
|
)?;
|
|
|
|
|
|
|
|
|
|
// oc:permissions — empty in trash
|
|
|
|
|
write_text_element(xml, "oc:permissions", "")?;
|
|
|
|
|
|
|
|
|
|
// oc:size
|
|
|
|
|
write_text_element(xml, "oc:size", "0")?;
|
|
|
|
|
|
|
|
|
|
xml.write_event(Event::End(BytesEnd::new("d:prop")))
|
|
|
|
|
.map_err(|e| e.to_string())?;
|
|
|
|
|
write_text_element(xml, "d:status", "HTTP/1.1 200 OK")?;
|
|
|
|
|
xml.write_event(Event::End(BytesEnd::new("d:propstat")))
|
|
|
|
|
.map_err(|e| e.to_string())?;
|
|
|
|
|
|
|
|
|
|
xml.write_event(Event::End(BytesEnd::new("d:response")))
|
|
|
|
|
.map_err(|e| e.to_string())?;
|
|
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
|
}
|
