use crate::auth::generate_www_auth; use crate::streamer::Streamer; use crate::utils::{decode_uri, encode_uri}; use crate::{Args, BoxResult}; use xml::escape::escape_str_pcdata; use async_walkdir::WalkDir; use async_zip::write::{EntryOptions, ZipFileWriter}; use async_zip::Compression; use chrono::{TimeZone, Utc}; use futures::stream::StreamExt; use futures::TryStreamExt; use headers::{ AcceptRanges, AccessControlAllowCredentials, AccessControlAllowHeaders, AccessControlAllowOrigin, Connection, ContentLength, ContentType, ETag, HeaderMap, HeaderMapExt, IfModifiedSince, IfNoneMatch, IfRange, LastModified, Range, }; use hyper::header::{ HeaderValue, ACCEPT, AUTHORIZATION, CONTENT_DISPOSITION, CONTENT_LENGTH, CONTENT_RANGE, CONTENT_TYPE, ORIGIN, RANGE, WWW_AUTHENTICATE, }; use hyper::{Body, Method, StatusCode, Uri}; use serde::Serialize; use std::fs::Metadata; use std::io::SeekFrom; use std::net::SocketAddr; use std::path::{Path, PathBuf}; use std::sync::Arc; use std::time::SystemTime; use tokio::fs::File; use tokio::io::{AsyncSeekExt, AsyncWrite}; use tokio::{fs, io}; use tokio_util::io::StreamReader; use uuid::Uuid; pub type Request = hyper::Request; pub type Response = hyper::Response; const INDEX_HTML: &str = include_str!("../assets/index.html"); const INDEX_CSS: &str = include_str!("../assets/index.css"); const INDEX_JS: &str = include_str!("../assets/index.js"); const FAVICON_ICO: &[u8] = include_bytes!("../assets/favicon.ico"); const INDEX_NAME: &str = "index.html"; const BUF_SIZE: usize = 65536; pub struct Server { args: Arc, } impl Server { pub fn new(args: Arc) -> Self { Self { args } } pub async fn call( self: Arc, req: Request, addr: SocketAddr, ) -> Result { let method = req.method().clone(); let uri = req.uri().clone(); let cors = self.args.cors; let mut res = match self.handle(req).await { Ok(res) => { let status = res.status().as_u16(); info!(r#"{} "{} {}" - {}"#, addr.ip(), method, uri, status,); res } Err(err) => { let mut res = Response::default(); let status = StatusCode::INTERNAL_SERVER_ERROR; *res.status_mut() = status; let status = status.as_u16(); error!(r#"{} "{} {}" - {} {}"#, addr.ip(), method, uri, status, err); res } }; if cors { add_cors(&mut res); } Ok(res) } pub async fn handle(self: Arc, req: Request) -> BoxResult { let mut res = Response::default(); let req_path = req.uri().path(); let headers = req.headers(); let method = req.method().clone(); if req_path == "/favicon.ico" && method == Method::GET { self.handle_send_favicon(headers, &mut res).await?; return Ok(res); } let authorization = headers.get(AUTHORIZATION); let guard_type = self.args.auth.guard(req_path, &method, authorization); if guard_type.is_reject() { self.auth_reject(&mut res); return Ok(res); } let head_only = method == Method::HEAD; if self.args.path_is_file { self.handle_send_file(&self.args.path, headers, head_only, &mut res) .await?; return Ok(res); } let path = match self.extract_path(req_path) { Some(v) => v, None => { status_forbid(&mut res); return Ok(res); } }; let path = path.as_path(); let query = req.uri().query().unwrap_or_default(); let (is_miss, is_dir, is_file, size) = match fs::metadata(path).await.ok() { Some(meta) => (false, meta.is_dir(), meta.is_file(), meta.len()), None => (true, false, false, 0), }; let allow_upload = self.args.allow_upload; let allow_delete = self.args.allow_delete; let render_index = self.args.render_index; let render_spa = self.args.render_spa; let render_try_index = self.args.render_try_index; if !self.args.allow_symlink && !is_miss && !self.is_root_contained(path).await { status_not_found(&mut res); return Ok(res); } match method { Method::GET | Method::HEAD => { if is_dir { if render_try_index && query == "zip" { self.handle_zip_dir(path, head_only, &mut res).await?; } else if render_index || render_spa || render_try_index { self.handle_render_index(path, headers, head_only, &mut res) .await?; } else if query == "zip" { self.handle_zip_dir(path, head_only, &mut res).await?; } else if let Some(q) = query.strip_prefix("q=") { self.handle_query_dir(path, q, head_only, &mut res).await?; } else { self.handle_ls_dir(path, true, head_only, &mut res).await?; } } else if is_file { self.handle_send_file(path, headers, head_only, &mut res) .await?; } else if render_spa { self.handle_render_spa(path, headers, head_only, &mut res) .await?; } else if allow_upload && req_path.ends_with('/') { self.handle_ls_dir(path, false, head_only, &mut res).await?; } else { status_not_found(&mut res); } } Method::OPTIONS => { set_webdav_headers(&mut res); } Method::PUT => { if !allow_upload || (!allow_delete && is_file && size > 0) { status_forbid(&mut res); } else { self.handle_upload(path, req, &mut res).await?; } } Method::DELETE => { if !allow_delete { status_forbid(&mut res); } else if !is_miss { self.handle_delete(path, is_dir, &mut res).await? } else { status_not_found(&mut res); } } method => match method.as_str() { "PROPFIND" => { if is_dir { self.handle_propfind_dir(path, headers, &mut res).await?; } else if is_file { self.handle_propfind_file(path, &mut res).await?; } else { status_not_found(&mut res); } } "PROPPATCH" => { if is_file { self.handle_proppatch(req_path, &mut res).await?; } else { status_not_found(&mut res); } } "MKCOL" => { if !allow_upload || !is_miss { status_forbid(&mut res); } else { self.handle_mkcol(path, &mut res).await?; } } "COPY" => { if !allow_upload { status_forbid(&mut res); } else if is_miss { status_not_found(&mut res); } else { self.handle_copy(path, headers, &mut res).await? } } "MOVE" => { if !allow_upload || !allow_delete { status_forbid(&mut res); } else if is_miss { status_not_found(&mut res); } else { self.handle_move(path, headers, &mut res).await? } } "LOCK" => { // Fake lock if is_file { let has_auth = authorization.is_some(); self.handle_lock(req_path, has_auth, &mut res).await?; } else { status_not_found(&mut res); } } "UNLOCK" => { // Fake unlock if is_miss { status_not_found(&mut res); } } _ => { *res.status_mut() = StatusCode::METHOD_NOT_ALLOWED; } }, } Ok(res) } async fn handle_upload( &self, path: &Path, mut req: Request, res: &mut Response, ) -> BoxResult<()> { ensure_path_parent(path).await?; let mut file = match fs::File::create(&path).await { Ok(v) => v, Err(_) => { status_forbid(res); return Ok(()); } }; let body_with_io_error = req .body_mut() .map_err(|err| io::Error::new(io::ErrorKind::Other, err)); let body_reader = StreamReader::new(body_with_io_error); futures::pin_mut!(body_reader); io::copy(&mut body_reader, &mut file).await?; *res.status_mut() = StatusCode::CREATED; Ok(()) } async fn handle_delete(&self, path: &Path, is_dir: bool, res: &mut Response) -> BoxResult<()> { match is_dir { true => fs::remove_dir_all(path).await?, false => fs::remove_file(path).await?, } status_no_content(res); Ok(()) } async fn handle_ls_dir( &self, path: &Path, exist: bool, head_only: bool, res: &mut Response, ) -> BoxResult<()> { let mut paths = vec![]; if exist { paths = match self.list_dir(path, path).await { Ok(paths) => paths, Err(_) => { status_forbid(res); return Ok(()); } } }; self.send_index(path, paths, exist, head_only, res) } async fn handle_query_dir( &self, path: &Path, query: &str, head_only: bool, res: &mut Response, ) -> BoxResult<()> { let mut paths: Vec = vec![]; let mut walkdir = WalkDir::new(path); while let Some(entry) = walkdir.next().await { if let Ok(entry) = entry { if !entry .file_name() .to_string_lossy() .to_lowercase() .contains(&query.to_lowercase()) { continue; } if fs::symlink_metadata(entry.path()).await.is_err() { continue; } if let Ok(Some(item)) = self.to_pathitem(entry.path(), path.to_path_buf()).await { paths.push(item); } } } self.send_index(path, paths, true, head_only, res) } async fn handle_zip_dir( &self, path: &Path, head_only: bool, res: &mut Response, ) -> BoxResult<()> { let (mut writer, reader) = tokio::io::duplex(BUF_SIZE); let filename = get_file_name(path)?; res.headers_mut().insert( CONTENT_DISPOSITION, HeaderValue::from_str(&format!( "attachment; filename=\"{}.zip\"", encode_uri(filename), )) .unwrap(), ); res.headers_mut() .insert("content-type", HeaderValue::from_static("application/zip")); if head_only { return Ok(()); } let path = path.to_owned(); tokio::spawn(async move { if let Err(e) = zip_dir(&mut writer, &path).await { error!("Failed to zip {}, {}", path.display(), e); } }); let reader = Streamer::new(reader, BUF_SIZE); *res.body_mut() = Body::wrap_stream(reader.into_stream()); Ok(()) } async fn handle_render_index( &self, path: &Path, headers: &HeaderMap, head_only: bool, res: &mut Response, ) -> BoxResult<()> { let index_path = path.join(INDEX_NAME); if fs::metadata(&index_path) .await .ok() .map(|v| v.is_file()) .unwrap_or_default() { self.handle_send_file(&index_path, headers, head_only, res) .await?; } else if self.args.render_try_index { self.handle_ls_dir(path, true, head_only, res).await?; } else { status_not_found(res) } Ok(()) } async fn handle_render_spa( &self, path: &Path, headers: &HeaderMap, head_only: bool, res: &mut Response, ) -> BoxResult<()> { if path.extension().is_none() { let path = self.args.path.join(INDEX_NAME); self.handle_send_file(&path, headers, head_only, res) .await?; } else { status_not_found(res) } Ok(()) } async fn handle_send_favicon( &self, headers: &HeaderMap, res: &mut Response, ) -> BoxResult<()> { let path = self.args.path.join("favicon.ico"); let meta = fs::metadata(&path).await.ok(); let is_file = meta.map(|v| v.is_file()).unwrap_or_default(); if is_file { self.handle_send_file(path.as_path(), headers, false, res) .await?; } else { *res.body_mut() = Body::from(FAVICON_ICO); res.headers_mut() .insert("content-type", HeaderValue::from_static("image/x-icon")); } Ok(()) } async fn handle_send_file( &self, path: &Path, headers: &HeaderMap, head_only: bool, res: &mut Response, ) -> BoxResult<()> { let (file, meta) = tokio::join!(fs::File::open(path), fs::metadata(path),); let (mut file, meta) = (file?, meta?); let mut use_range = true; if let Some((etag, last_modified)) = extract_cache_headers(&meta) { let cached = { if let Some(if_none_match) = headers.typed_get::() { !if_none_match.precondition_passes(&etag) } else if let Some(if_modified_since) = headers.typed_get::() { !if_modified_since.is_modified(last_modified.into()) } else { false } }; if cached { *res.status_mut() = StatusCode::NOT_MODIFIED; return Ok(()); } res.headers_mut().typed_insert(last_modified); res.headers_mut().typed_insert(etag.clone()); if headers.typed_get::().is_some() { use_range = headers .typed_get::() .map(|if_range| !if_range.is_modified(Some(&etag), Some(&last_modified))) // Always be fresh if there is no validators .unwrap_or(true); } else { use_range = false; } } let range = if use_range { parse_range(headers) } else { None }; if let Some(mime) = mime_guess::from_path(&path).first() { res.headers_mut().typed_insert(ContentType::from(mime)); } else { res.headers_mut().insert( CONTENT_TYPE, HeaderValue::from_static("application/octet-stream"), ); } let filename = get_file_name(path)?; res.headers_mut().insert( CONTENT_DISPOSITION, HeaderValue::from_str(&format!("inline; filename=\"{}\"", encode_uri(filename),)) .unwrap(), ); res.headers_mut().typed_insert(AcceptRanges::bytes()); let size = meta.len(); if let Some(range) = range { if range .end .map_or_else(|| range.start < size, |v| v >= range.start) && file.seek(SeekFrom::Start(range.start)).await.is_ok() { let end = range.end.unwrap_or(size - 1).min(size - 1); let part_size = end - range.start + 1; let reader = Streamer::new(file, BUF_SIZE); *res.status_mut() = StatusCode::PARTIAL_CONTENT; let content_range = format!("bytes {}-{}/{}", range.start, end, size); res.headers_mut() .insert(CONTENT_RANGE, content_range.parse().unwrap()); res.headers_mut() .insert(CONTENT_LENGTH, format!("{}", part_size).parse().unwrap()); if head_only { return Ok(()); } *res.body_mut() = Body::wrap_stream(reader.into_stream_sized(part_size)); } else { *res.status_mut() = StatusCode::RANGE_NOT_SATISFIABLE; res.headers_mut() .insert(CONTENT_RANGE, format!("bytes */{}", size).parse().unwrap()); } } else { res.headers_mut() .insert(CONTENT_LENGTH, format!("{}", size).parse().unwrap()); if head_only { return Ok(()); } let reader = Streamer::new(file, BUF_SIZE); *res.body_mut() = Body::wrap_stream(reader.into_stream()); } Ok(()) } async fn handle_propfind_dir( &self, path: &Path, headers: &HeaderMap, res: &mut Response, ) -> BoxResult<()> { let depth: u32 = match headers.get("depth") { Some(v) => match v.to_str().ok().and_then(|v| v.parse().ok()) { Some(v) => v, None => { *res.status_mut() = StatusCode::BAD_REQUEST; return Ok(()); } }, None => 1, }; let mut paths = vec![self.to_pathitem(path, &self.args.path).await?.unwrap()]; if depth != 0 { match self.list_dir(path, &self.args.path).await { Ok(child) => paths.extend(child), Err(_) => { status_forbid(res); return Ok(()); } } } let output = paths .iter() .map(|v| v.to_dav_xml(self.args.uri_prefix.as_str())) .fold(String::new(), |mut acc, v| { acc.push_str(&v); acc }); res_multistatus(res, &output); Ok(()) } async fn handle_propfind_file(&self, path: &Path, res: &mut Response) -> BoxResult<()> { if let Some(pathitem) = self.to_pathitem(path, &self.args.path).await? { res_multistatus(res, &pathitem.to_dav_xml(self.args.uri_prefix.as_str())); } else { status_not_found(res); } Ok(()) } async fn handle_mkcol(&self, path: &Path, res: &mut Response) -> BoxResult<()> { fs::create_dir_all(path).await?; *res.status_mut() = StatusCode::CREATED; Ok(()) } async fn handle_copy( &self, path: &Path, headers: &HeaderMap, res: &mut Response, ) -> BoxResult<()> { let dest = match self.extract_dest(headers) { Some(dest) => dest, None => { *res.status_mut() = StatusCode::BAD_REQUEST; return Ok(()); } }; let meta = fs::symlink_metadata(path).await?; if meta.is_dir() { status_forbid(res); return Ok(()); } ensure_path_parent(&dest).await?; fs::copy(path, &dest).await?; status_no_content(res); Ok(()) } async fn handle_move( &self, path: &Path, headers: &HeaderMap, res: &mut Response, ) -> BoxResult<()> { let dest = match self.extract_dest(headers) { Some(dest) => dest, None => { *res.status_mut() = StatusCode::BAD_REQUEST; return Ok(()); } }; ensure_path_parent(&dest).await?; fs::rename(path, &dest).await?; status_no_content(res); Ok(()) } async fn handle_lock(&self, req_path: &str, auth: bool, res: &mut Response) -> BoxResult<()> { let token = if auth { format!("opaquelocktoken:{}", Uuid::new_v4()) } else { Utc::now().timestamp().to_string() }; res.headers_mut().insert( "content-type", HeaderValue::from_static("application/xml; charset=utf-8"), ); res.headers_mut() .insert("lock-token", format!("<{}>", token).parse().unwrap()); *res.body_mut() = Body::from(format!( r#" {} {} "#, token, req_path )); Ok(()) } async fn handle_proppatch(&self, req_path: &str, res: &mut Response) -> BoxResult<()> { let output = format!( r#" {} HTTP/1.1 403 Forbidden "#, req_path ); res_multistatus(res, &output); Ok(()) } fn send_index( &self, path: &Path, mut paths: Vec, exist: bool, head_only: bool, res: &mut Response, ) -> BoxResult<()> { paths.sort_unstable(); let rel_path = match self.args.path.parent() { Some(p) => path.strip_prefix(p).unwrap(), None => path, }; let data = IndexData { breadcrumb: normalize_path(rel_path), paths, allow_upload: self.args.allow_upload, allow_delete: self.args.allow_delete, dir_exists: exist, }; let data = serde_json::to_string(&data).unwrap(); let output = INDEX_HTML.replace( "__SLOT__", &format!( r#" Files in {}/ - Duf "#, rel_path.display(), INDEX_CSS, data, INDEX_JS ), ); res.headers_mut() .typed_insert(ContentType::from(mime_guess::mime::TEXT_HTML_UTF_8)); res.headers_mut() .typed_insert(ContentLength(output.as_bytes().len() as u64)); if head_only { return Ok(()); } *res.body_mut() = output.into(); Ok(()) } fn auth_reject(&self, res: &mut Response) { let value = generate_www_auth(false); set_webdav_headers(res); res.headers_mut().typed_insert(Connection::close()); res.headers_mut() .insert(WWW_AUTHENTICATE, value.parse().unwrap()); *res.status_mut() = StatusCode::UNAUTHORIZED; } async fn is_root_contained(&self, path: &Path) -> bool { fs::canonicalize(path) .await .ok() .map(|v| v.starts_with(&self.args.path)) .unwrap_or_default() } fn extract_dest(&self, headers: &HeaderMap) -> Option { let dest = headers.get("Destination")?.to_str().ok()?; let uri: Uri = dest.parse().ok()?; self.extract_path(uri.path()) } fn extract_path(&self, path: &str) -> Option { let decoded_path = decode_uri(&path[1..])?; let slashes_switched = if cfg!(windows) { decoded_path.replace('/', "\\") } else { decoded_path.into_owned() }; let stripped_path = match self.strip_path_prefix(&slashes_switched) { Some(path) => path, None => return None, }; Some(self.args.path.join(&stripped_path)) } fn strip_path_prefix<'a, P: AsRef>(&self, path: &'a P) -> Option<&'a Path> { let path = path.as_ref(); if self.args.path_prefix.is_empty() { Some(path) } else { path.strip_prefix(&self.args.path_prefix).ok() } } async fn list_dir(&self, entry_path: &Path, base_path: &Path) -> BoxResult> { let mut paths: Vec = vec![]; let mut rd = fs::read_dir(entry_path).await?; while let Ok(Some(entry)) = rd.next_entry().await { let entry_path = entry.path(); if let Ok(Some(item)) = self.to_pathitem(entry_path.as_path(), base_path).await { paths.push(item); } } Ok(paths) } async fn to_pathitem>( &self, path: P, base_path: P, ) -> BoxResult> { let path = path.as_ref(); let rel_path = path.strip_prefix(base_path).unwrap(); let (meta, meta2) = tokio::join!(fs::metadata(&path), fs::symlink_metadata(&path)); let (meta, meta2) = (meta?, meta2?); let is_symlink = meta2.is_symlink(); if !self.args.allow_symlink && is_symlink && !self.is_root_contained(path).await { return Ok(None); } let is_dir = meta.is_dir(); let path_type = match (is_symlink, is_dir) { (true, true) => PathType::SymlinkDir, (false, true) => PathType::Dir, (true, false) => PathType::SymlinkFile, (false, false) => PathType::File, }; let mtime = to_timestamp(&meta.modified()?); let size = match path_type { PathType::Dir | PathType::SymlinkDir => None, PathType::File | PathType::SymlinkFile => Some(meta.len()), }; let name = normalize_path(rel_path); Ok(Some(PathItem { path_type, name, mtime, size, })) } } #[derive(Debug, Serialize)] struct IndexData { breadcrumb: String, paths: Vec, allow_upload: bool, allow_delete: bool, dir_exists: bool, } #[derive(Debug, Serialize, Eq, PartialEq, Ord, PartialOrd)] struct PathItem { path_type: PathType, name: String, mtime: u64, size: Option, } impl PathItem { pub fn is_dir(&self) -> bool { self.path_type == PathType::Dir || self.path_type == PathType::SymlinkDir } pub fn to_dav_xml(&self, prefix: &str) -> String { let mtime = Utc.timestamp_millis(self.mtime as i64).to_rfc2822(); let mut href = encode_uri(&format!("{}{}", prefix, &self.name)); if self.is_dir() && !href.ends_with('/') { href.push('/'); } let displayname = escape_str_pcdata(self.base_name()); match self.path_type { PathType::Dir | PathType::SymlinkDir => format!( r#" {} {} {} HTTP/1.1 200 OK "#, href, displayname, mtime ), PathType::File | PathType::SymlinkFile => format!( r#" {} {} {} {} HTTP/1.1 200 OK "#, href, displayname, self.size.unwrap_or_default(), mtime ), } } fn base_name(&self) -> &str { Path::new(&self.name) .file_name() .and_then(|v| v.to_str()) .unwrap_or_default() } } #[derive(Debug, Serialize, Eq, PartialEq, Ord, PartialOrd)] enum PathType { Dir, SymlinkDir, File, SymlinkFile, } fn to_timestamp(time: &SystemTime) -> u64 { time.duration_since(SystemTime::UNIX_EPOCH) .unwrap() .as_millis() as u64 } fn normalize_path>(path: P) -> String { let path = path.as_ref().to_str().unwrap_or_default(); if cfg!(windows) { path.replace('\\', "/") } else { path.to_string() } } async fn ensure_path_parent(path: &Path) -> BoxResult<()> { if let Some(parent) = path.parent() { if fs::symlink_metadata(parent).await.is_err() { fs::create_dir_all(&parent).await?; } } Ok(()) } fn add_cors(res: &mut Response) { res.headers_mut() .typed_insert(AccessControlAllowOrigin::ANY); res.headers_mut() .typed_insert(AccessControlAllowCredentials); res.headers_mut().typed_insert( vec![RANGE, CONTENT_TYPE, ACCEPT, ORIGIN, WWW_AUTHENTICATE] .into_iter() .collect::(), ); } fn res_multistatus(res: &mut Response, content: &str) { *res.status_mut() = StatusCode::MULTI_STATUS; res.headers_mut().insert( "content-type", HeaderValue::from_static("application/xml; charset=utf-8"), ); *res.body_mut() = Body::from(format!( r#" {} "#, content, )); } async fn zip_dir(writer: &mut W, dir: &Path) -> BoxResult<()> { let mut writer = ZipFileWriter::new(writer); let mut walkdir = WalkDir::new(dir); while let Some(entry) = walkdir.next().await { if let Ok(entry) = entry { let entry_path = entry.path(); let meta = match fs::symlink_metadata(entry.path()).await { Ok(meta) => meta, Err(_) => continue, }; if !meta.is_file() { continue; } let filename = match entry_path.strip_prefix(dir).ok().and_then(|v| v.to_str()) { Some(v) => v, None => continue, }; let entry_options = EntryOptions::new(filename.to_owned(), Compression::Deflate); let mut file = File::open(&entry_path).await?; let mut file_writer = writer.write_entry_stream(entry_options).await?; io::copy(&mut file, &mut file_writer).await?; file_writer.close().await?; } } writer.close().await?; Ok(()) } fn extract_cache_headers(meta: &Metadata) -> Option<(ETag, LastModified)> { let mtime = meta.modified().ok()?; let timestamp = to_timestamp(&mtime); let size = meta.len(); let etag = format!(r#""{}-{}""#, timestamp, size) .parse::() .unwrap(); let last_modified = LastModified::from(mtime); Some((etag, last_modified)) } #[derive(Debug)] struct RangeValue { start: u64, end: Option, } fn parse_range(headers: &HeaderMap) -> Option { let range_hdr = headers.get(RANGE)?; let hdr = range_hdr.to_str().ok()?; let mut sp = hdr.splitn(2, '='); let units = sp.next().unwrap(); if units == "bytes" { let range = sp.next()?; let mut sp_range = range.splitn(2, '-'); let start: u64 = sp_range.next().unwrap().parse().ok()?; let end: Option = if let Some(end) = sp_range.next() { if end.is_empty() { None } else { Some(end.parse().ok()?) } } else { None }; Some(RangeValue { start, end }) } else { None } } fn status_forbid(res: &mut Response) { *res.status_mut() = StatusCode::FORBIDDEN; *res.body_mut() = Body::from("Forbidden"); } fn status_not_found(res: &mut Response) { *res.status_mut() = StatusCode::NOT_FOUND; *res.body_mut() = Body::from("Not Found"); } fn status_no_content(res: &mut Response) { *res.status_mut() = StatusCode::NO_CONTENT; } fn get_file_name(path: &Path) -> BoxResult<&str> { path.file_name() .and_then(|v| v.to_str()) .ok_or_else(|| format!("Failed to get file name of `{}`", path.display()).into()) } fn set_webdav_headers(res: &mut Response) { res.headers_mut().insert( "Allow", HeaderValue::from_static("GET,HEAD,PUT,OPTIONS,DELETE,PROPFIND,COPY,MOVE"), ); res.headers_mut() .insert("DAV", HeaderValue::from_static("1,2")); }