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split up files lib (#1685)

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Rob Ede 2020-09-20 23:18:25 +01:00 committed by GitHub
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commit f7bcad9567
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9 changed files with 825 additions and 674 deletions
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1
actix-files/Cargo.toml
View file

@ -18,7 +18,6 @@ path = "src/lib.rs"
[dependencies]
actix-web = { version = "3.0.0", default-features = false }
actix-http = "2.0.0"
actix-service = "1.0.6"
bitflags = "1"
bytes = "0.5.3"

94
actix-files/src/chunked.rs Normal file
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@ -0,0 +1,94 @@
use std::{
cmp, fmt,
fs::File,
future::Future,
io::{self, Read, Seek},
pin::Pin,
task::{Context, Poll},
};
use actix_web::{
error::{BlockingError, Error},
web,
};
use bytes::Bytes;
use futures_core::{ready, Stream};
use futures_util::future::{FutureExt, LocalBoxFuture};
use crate::handle_error;
type ChunkedBoxFuture =
LocalBoxFuture<'static, Result<(File, Bytes), BlockingError<io::Error>>>;
#[doc(hidden)]
/// A helper created from a `std::fs::File` which reads the file
/// chunk-by-chunk on a `ThreadPool`.
pub struct ChunkedReadFile {
pub(crate) size: u64,
pub(crate) offset: u64,
pub(crate) file: Option<File>,
pub(crate) fut: Option<ChunkedBoxFuture>,
pub(crate) counter: u64,
}
impl fmt::Debug for ChunkedReadFile {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("ChunkedReadFile")
}
}
impl Stream for ChunkedReadFile {
type Item = Result<Bytes, Error>;
fn poll_next(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Option<Self::Item>> {
if let Some(ref mut fut) = self.fut {
return match ready!(Pin::new(fut).poll(cx)) {
Ok((file, bytes)) => {
self.fut.take();
self.file = Some(file);
self.offset += bytes.len() as u64;
self.counter += bytes.len() as u64;
Poll::Ready(Some(Ok(bytes)))
}
Err(e) => Poll::Ready(Some(Err(handle_error(e)))),
};
}
let size = self.size;
let offset = self.offset;
let counter = self.counter;
if size == counter {
Poll::Ready(None)
} else {
let mut file = self.file.take().expect("Use after completion");
self.fut = Some(
web::block(move || {
let max_bytes =
cmp::min(size.saturating_sub(counter), 65_536) as usize;
let mut buf = Vec::with_capacity(max_bytes);
file.seek(io::SeekFrom::Start(offset))?;
let n_bytes =
file.by_ref().take(max_bytes as u64).read_to_end(&mut buf)?;
if n_bytes == 0 {
return Err(io::ErrorKind::UnexpectedEof.into());
}
Ok((file, Bytes::from(buf)))
})
.boxed_local(),
);
self.poll_next(cx)
}
}
}

114
actix-files/src/directory.rs Normal file
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@ -0,0 +1,114 @@
use std::{fmt::Write, fs::DirEntry, io, path::Path, path::PathBuf};
use actix_web::{dev::ServiceResponse, HttpRequest, HttpResponse};
use percent_encoding::{utf8_percent_encode, CONTROLS};
use v_htmlescape::escape as escape_html_entity;
/// A directory; responds with the generated directory listing.
#[derive(Debug)]
pub struct Directory {
/// Base directory.
pub base: PathBuf,
/// Path of subdirectory to generate listing for.
pub path: PathBuf,
}
impl Directory {
/// Create a new directory
pub fn new(base: PathBuf, path: PathBuf) -> Directory {
Directory { base, path }
}
/// Is this entry visible from this directory?
pub fn is_visible(&self, entry: &io::Result<DirEntry>) -> bool {
if let Ok(ref entry) = *entry {
if let Some(name) = entry.file_name().to_str() {
if name.starts_with('.') {
return false;
}
}
if let Ok(ref md) = entry.metadata() {
let ft = md.file_type();
return ft.is_dir() || ft.is_file() || ft.is_symlink();
}
}
false
}
}
pub(crate) type DirectoryRenderer =
dyn Fn(&Directory, &HttpRequest) -> Result<ServiceResponse, io::Error>;
// show file url as relative to static path
macro_rules! encode_file_url {
($path:ident) => {
utf8_percent_encode(&$path, CONTROLS)
};
}
// " -- &quot; & -- &amp; ' -- &#x27; < -- &lt; > -- &gt; / -- &#x2f;
macro_rules! encode_file_name {
($entry:ident) => {
escape_html_entity(&$entry.file_name().to_string_lossy())
};
}
pub(crate) fn directory_listing(
dir: &Directory,
req: &HttpRequest,
) -> Result<ServiceResponse, io::Error> {
let index_of = format!("Index of {}", req.path());
let mut body = String::new();
let base = Path::new(req.path());
for entry in dir.path.read_dir()? {
if dir.is_visible(&entry) {
let entry = entry.unwrap();
let p = match entry.path().strip_prefix(&dir.path) {
Ok(p) if cfg!(windows) => {
base.join(p).to_string_lossy().replace("\\", "/")
}
Ok(p) => base.join(p).to_string_lossy().into_owned(),
Err(_) => continue,
};
// if file is a directory, add '/' to the end of the name
if let Ok(metadata) = entry.metadata() {
if metadata.is_dir() {
let _ = write!(
body,
"<li><a href=\"{}\">{}/</a></li>",
encode_file_url!(p),
encode_file_name!(entry),
);
} else {
let _ = write!(
body,
"<li><a href=\"{}\">{}</a></li>",
encode_file_url!(p),
encode_file_name!(entry),
);
}
} else {
continue;
}
}
}
let html = format!(
"<html>\
<head><title>{}</title></head>\
<body><h1>{}</h1>\
<ul>\
{}\
</ul></body>\n</html>",
index_of, index_of, body
);
Ok(ServiceResponse::new(
req.clone(),
HttpResponse::Ok()
.content_type("text/html; charset=utf-8")
.body(html),
))
}

250
actix-files/src/files.rs Normal file
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@ -0,0 +1,250 @@
use std::{cell::RefCell, fmt, io, path::PathBuf, rc::Rc};
use actix_service::{boxed, IntoServiceFactory, ServiceFactory};
use actix_web::{
dev::{
AppService, HttpServiceFactory, ResourceDef, ServiceRequest, ServiceResponse,
},
error::Error,
guard::Guard,
http::header::DispositionType,
HttpRequest,
};
use futures_util::future::{ok, FutureExt, LocalBoxFuture};
use crate::{
directory_listing, named, Directory, DirectoryRenderer, FilesService,
HttpNewService, MimeOverride,
};
/// Static files handling service.
///
/// `Files` service must be registered with `App::service()` method.
///
/// ```rust
/// use actix_web::App;
/// use actix_files::Files;
///
/// let app = App::new()
/// .service(Files::new("/static", "."));
/// ```
pub struct Files {
path: String,
directory: PathBuf,
index: Option<String>,
show_index: bool,
redirect_to_slash: bool,
default: Rc<RefCell<Option<Rc<HttpNewService>>>>,
renderer: Rc<DirectoryRenderer>,
mime_override: Option<Rc<MimeOverride>>,
file_flags: named::Flags,
guards: Option<Rc<dyn Guard>>,
}
impl fmt::Debug for Files {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("Files")
}
}
impl Clone for Files {
fn clone(&self) -> Self {
Self {
directory: self.directory.clone(),
index: self.index.clone(),
show_index: self.show_index,
redirect_to_slash: self.redirect_to_slash,
default: self.default.clone(),
renderer: self.renderer.clone(),
file_flags: self.file_flags,
path: self.path.clone(),
mime_override: self.mime_override.clone(),
guards: self.guards.clone(),
}
}
}
impl Files {
/// Create new `Files` instance for specified base directory.
///
/// `File` uses `ThreadPool` for blocking filesystem operations.
/// By default pool with 5x threads of available cpus is used.
/// Pool size can be changed by setting ACTIX_THREADPOOL environment variable.
pub fn new<T: Into<PathBuf>>(path: &str, dir: T) -> Files {
let orig_dir = dir.into();
let dir = match orig_dir.canonicalize() {
Ok(canon_dir) => canon_dir,
Err(_) => {
log::error!("Specified path is not a directory: {:?}", orig_dir);
PathBuf::new()
}
};
Files {
path: path.to_string(),
directory: dir,
index: None,
show_index: false,
redirect_to_slash: false,
default: Rc::new(RefCell::new(None)),
renderer: Rc::new(directory_listing),
mime_override: None,
file_flags: named::Flags::default(),
guards: None,
}
}
/// Show files listing for directories.
///
/// By default show files listing is disabled.
pub fn show_files_listing(mut self) -> Self {
self.show_index = true;
self
}
/// Redirects to a slash-ended path when browsing a directory.
///
/// By default never redirect.
pub fn redirect_to_slash_directory(mut self) -> Self {
self.redirect_to_slash = true;
self
}
/// Set custom directory renderer
pub fn files_listing_renderer<F>(mut self, f: F) -> Self
where
for<'r, 's> F: Fn(&'r Directory, &'s HttpRequest) -> Result<ServiceResponse, io::Error>
+ 'static,
{
self.renderer = Rc::new(f);
self
}
/// Specifies mime override callback
pub fn mime_override<F>(mut self, f: F) -> Self
where
F: Fn(&mime::Name<'_>) -> DispositionType + 'static,
{
self.mime_override = Some(Rc::new(f));
self
}
/// Set index file
///
/// Shows specific index file for directory "/" instead of
/// showing files listing.
pub fn index_file<T: Into<String>>(mut self, index: T) -> Self {
self.index = Some(index.into());
self
}
#[inline]
/// Specifies whether to use ETag or not.
///
/// Default is true.
pub fn use_etag(mut self, value: bool) -> Self {
self.file_flags.set(named::Flags::ETAG, value);
self
}
#[inline]
/// Specifies whether to use Last-Modified or not.
///
/// Default is true.
pub fn use_last_modified(mut self, value: bool) -> Self {
self.file_flags.set(named::Flags::LAST_MD, value);
self
}
/// Specifies custom guards to use for directory listings and files.
///
/// Default behaviour allows GET and HEAD.
#[inline]
pub fn use_guards<G: Guard + 'static>(mut self, guards: G) -> Self {
self.guards = Some(Rc::new(guards));
self
}
/// Disable `Content-Disposition` header.
///
/// By default Content-Disposition` header is enabled.
#[inline]
pub fn disable_content_disposition(mut self) -> Self {
self.file_flags.remove(named::Flags::CONTENT_DISPOSITION);
self
}
/// Sets default handler which is used when no matched file could be found.
pub fn default_handler<F, U>(mut self, f: F) -> Self
where
F: IntoServiceFactory<U>,
U: ServiceFactory<
Config = (),
Request = ServiceRequest,
Response = ServiceResponse,
Error = Error,
> + 'static,
{
// create and configure default resource
self.default = Rc::new(RefCell::new(Some(Rc::new(boxed::factory(
f.into_factory().map_init_err(|_| ()),
)))));
self
}
}
impl HttpServiceFactory for Files {
fn register(self, config: &mut AppService) {
if self.default.borrow().is_none() {
*self.default.borrow_mut() = Some(config.default_service());
}
let rdef = if config.is_root() {
ResourceDef::root_prefix(&self.path)
} else {
ResourceDef::prefix(&self.path)
};
config.register_service(rdef, None, self, None)
}
}
impl ServiceFactory for Files {
type Request = ServiceRequest;
type Response = ServiceResponse;
type Error = Error;
type Config = ();
type Service = FilesService;
type InitError = ();
type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
fn new_service(&self, _: ()) -> Self::Future {
let mut srv = FilesService {
directory: self.directory.clone(),
index: self.index.clone(),
show_index: self.show_index,
redirect_to_slash: self.redirect_to_slash,
default: None,
renderer: self.renderer.clone(),
mime_override: self.mime_override.clone(),
file_flags: self.file_flags,
guards: self.guards.clone(),
};
if let Some(ref default) = *self.default.borrow() {
default
.new_service(())
.map(move |result| match result {
Ok(default) => {
srv.default = Some(default);
Ok(srv)
}
Err(_) => Err(()),
})
.boxed_local()
} else {
ok(srv).boxed_local()
}
}
}

715
actix-files/src/lib.rs
View file

@ -1,44 +1,52 @@
//! Static files support
//! Static files support for Actix Web.
//!
//! Provides a non-blocking service for serving static files from disk.
//!
//! # Example
//! ```rust
//! use actix_web::App;
//! use actix_files::Files;
//!
//! let app = App::new()
//! .service(Files::new("/static", "."));
//! ```
//!
//! # Implementation Quirks
//! - If a filename contains non-ascii characters, that file will be served with the `charset=utf-8`
//! extension on the Content-Type header.
#![deny(rust_2018_idioms)]
#![allow(clippy::borrow_interior_mutable_const)]
#![warn(missing_docs, missing_debug_implementations)]
use std::cell::RefCell;
use std::fmt::Write;
use std::fs::{DirEntry, File};
use std::future::Future;
use std::io::{Read, Seek};
use std::path::{Path, PathBuf};
use std::pin::Pin;
use std::rc::Rc;
use std::task::{Context, Poll};
use std::{cmp, io};
use std::io;
use actix_service::boxed::{self, BoxService, BoxServiceFactory};
use actix_service::{IntoServiceFactory, Service, ServiceFactory};
use actix_web::dev::{
AppService, HttpServiceFactory, Payload, ResourceDef, ServiceRequest,
ServiceResponse,
use actix_service::boxed::{BoxService, BoxServiceFactory};
use actix_web::{
dev::{ServiceRequest, ServiceResponse},
error::{BlockingError, Error, ErrorInternalServerError},
http::header::DispositionType,
};
use actix_web::error::{BlockingError, Error, ErrorInternalServerError};
use actix_web::guard::Guard;
use actix_web::http::header::{self, DispositionType};
use actix_web::http::Method;
use actix_web::{web, FromRequest, HttpRequest, HttpResponse};
use bytes::Bytes;
use futures_core::Stream;
use futures_util::future::{ok, ready, Either, FutureExt, LocalBoxFuture, Ready};
use mime_guess::from_ext;
use percent_encoding::{utf8_percent_encode, CONTROLS};
use v_htmlescape::escape as escape_html_entity;
mod chunked;
mod directory;
mod error;
mod files;
mod named;
mod path_buf;
mod range;
mod service;
use self::error::{FilesError, UriSegmentError};
pub use crate::chunked::ChunkedReadFile;
pub use crate::directory::Directory;
pub use crate::files::Files;
pub use crate::named::NamedFile;
pub use crate::range::HttpRange;
pub use crate::service::FilesService;
use self::directory::{directory_listing, DirectoryRenderer};
use self::error::FilesError;
use self::path_buf::PathBufWrap;
type HttpService = BoxService<ServiceRequest, ServiceResponse, Error>;
type HttpNewService = BoxServiceFactory<(), ServiceRequest, ServiceResponse, Error, ()>;
@ -51,612 +59,37 @@ pub fn file_extension_to_mime(ext: &str) -> mime::Mime {
from_ext(ext).first_or_octet_stream()
}
fn handle_error(err: BlockingError<io::Error>) -> Error {
pub(crate) fn handle_error(err: BlockingError<io::Error>) -> Error {
match err {
BlockingError::Error(err) => err.into(),
BlockingError::Canceled => ErrorInternalServerError("Unexpected error"),
}
}
#[doc(hidden)]
/// A helper created from a `std::fs::File` which reads the file
/// chunk-by-chunk on a `ThreadPool`.
pub struct ChunkedReadFile {
size: u64,
offset: u64,
file: Option<File>,
#[allow(clippy::type_complexity)]
fut:
Option<LocalBoxFuture<'static, Result<(File, Bytes), BlockingError<io::Error>>>>,
counter: u64,
}
impl Stream for ChunkedReadFile {
type Item = Result<Bytes, Error>;
fn poll_next(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Option<Self::Item>> {
if let Some(ref mut fut) = self.fut {
return match Pin::new(fut).poll(cx) {
Poll::Ready(Ok((file, bytes))) => {
self.fut.take();
self.file = Some(file);
self.offset += bytes.len() as u64;
self.counter += bytes.len() as u64;
Poll::Ready(Some(Ok(bytes)))
}
Poll::Ready(Err(e)) => Poll::Ready(Some(Err(handle_error(e)))),
Poll::Pending => Poll::Pending,
};
}
let size = self.size;
let offset = self.offset;
let counter = self.counter;
if size == counter {
Poll::Ready(None)
} else {
let mut file = self.file.take().expect("Use after completion");
self.fut = Some(
web::block(move || {
let max_bytes: usize;
max_bytes = cmp::min(size.saturating_sub(counter), 65_536) as usize;
let mut buf = Vec::with_capacity(max_bytes);
file.seek(io::SeekFrom::Start(offset))?;
let nbytes =
file.by_ref().take(max_bytes as u64).read_to_end(&mut buf)?;
if nbytes == 0 {
return Err(io::ErrorKind::UnexpectedEof.into());
}
Ok((file, Bytes::from(buf)))
})
.boxed_local(),
);
self.poll_next(cx)
}
}
}
type DirectoryRenderer =
dyn Fn(&Directory, &HttpRequest) -> Result<ServiceResponse, io::Error>;
/// A directory; responds with the generated directory listing.
#[derive(Debug)]
pub struct Directory {
/// Base directory
pub base: PathBuf,
/// Path of subdirectory to generate listing for
pub path: PathBuf,
}
impl Directory {
/// Create a new directory
pub fn new(base: PathBuf, path: PathBuf) -> Directory {
Directory { base, path }
}
/// Is this entry visible from this directory?
pub fn is_visible(&self, entry: &io::Result<DirEntry>) -> bool {
if let Ok(ref entry) = *entry {
if let Some(name) = entry.file_name().to_str() {
if name.starts_with('.') {
return false;
}
}
if let Ok(ref md) = entry.metadata() {
let ft = md.file_type();
return ft.is_dir() || ft.is_file() || ft.is_symlink();
}
}
false
}
}
// show file url as relative to static path
macro_rules! encode_file_url {
($path:ident) => {
utf8_percent_encode(&$path, CONTROLS)
};
}
// " -- &quot; & -- &amp; ' -- &#x27; < -- &lt; > -- &gt; / -- &#x2f;
macro_rules! encode_file_name {
($entry:ident) => {
escape_html_entity(&$entry.file_name().to_string_lossy())
};
}
fn directory_listing(
dir: &Directory,
req: &HttpRequest,
) -> Result<ServiceResponse, io::Error> {
let index_of = format!("Index of {}", req.path());
let mut body = String::new();
let base = Path::new(req.path());
for entry in dir.path.read_dir()? {
if dir.is_visible(&entry) {
let entry = entry.unwrap();
let p = match entry.path().strip_prefix(&dir.path) {
Ok(p) if cfg!(windows) => {
base.join(p).to_string_lossy().replace("\\", "/")
}
Ok(p) => base.join(p).to_string_lossy().into_owned(),
Err(_) => continue,
};
// if file is a directory, add '/' to the end of the name
if let Ok(metadata) = entry.metadata() {
if metadata.is_dir() {
let _ = write!(
body,
"<li><a href=\"{}\">{}/</a></li>",
encode_file_url!(p),
encode_file_name!(entry),
);
} else {
let _ = write!(
body,
"<li><a href=\"{}\">{}</a></li>",
encode_file_url!(p),
encode_file_name!(entry),
);
}
} else {
continue;
}
}
}
let html = format!(
"<html>\
<head><title>{}</title></head>\
<body><h1>{}</h1>\
<ul>\
{}\
</ul></body>\n</html>",
index_of, index_of, body
);
Ok(ServiceResponse::new(
req.clone(),
HttpResponse::Ok()
.content_type("text/html; charset=utf-8")
.body(html),
))
}
type MimeOverride = dyn Fn(&mime::Name<'_>) -> DispositionType;
/// Static files handling
///
/// `Files` service must be registered with `App::service()` method.
///
/// ```rust
/// use actix_web::App;
/// use actix_files::Files;
///
/// let app = App::new()
/// .service(Files::new("/static", "."));
/// ```
pub struct Files {
path: String,
directory: PathBuf,
index: Option<String>,
show_index: bool,
redirect_to_slash: bool,
default: Rc<RefCell<Option<Rc<HttpNewService>>>>,
renderer: Rc<DirectoryRenderer>,
mime_override: Option<Rc<MimeOverride>>,
file_flags: named::Flags,
// FIXME: Should re-visit later.
#[allow(clippy::redundant_allocation)]
guards: Option<Rc<Box<dyn Guard>>>,
}
impl Clone for Files {
fn clone(&self) -> Self {
Self {
directory: self.directory.clone(),
index: self.index.clone(),
show_index: self.show_index,
redirect_to_slash: self.redirect_to_slash,
default: self.default.clone(),
renderer: self.renderer.clone(),
file_flags: self.file_flags,
path: self.path.clone(),
mime_override: self.mime_override.clone(),
guards: self.guards.clone(),
}
}
}
impl Files {
/// Create new `Files` instance for specified base directory.
///
/// `File` uses `ThreadPool` for blocking filesystem operations.
/// By default pool with 5x threads of available cpus is used.
/// Pool size can be changed by setting ACTIX_THREADPOOL environment variable.
pub fn new<T: Into<PathBuf>>(path: &str, dir: T) -> Files {
let orig_dir = dir.into();
let dir = match orig_dir.canonicalize() {
Ok(canon_dir) => canon_dir,
Err(_) => {
log::error!("Specified path is not a directory: {:?}", orig_dir);
PathBuf::new()
}
};
Files {
path: path.to_string(),
directory: dir,
index: None,
show_index: false,
redirect_to_slash: false,
default: Rc::new(RefCell::new(None)),
renderer: Rc::new(directory_listing),
mime_override: None,
file_flags: named::Flags::default(),
guards: None,
}
}
/// Show files listing for directories.
///
/// By default show files listing is disabled.
pub fn show_files_listing(mut self) -> Self {
self.show_index = true;
self
}
/// Redirects to a slash-ended path when browsing a directory.
///
/// By default never redirect.
pub fn redirect_to_slash_directory(mut self) -> Self {
self.redirect_to_slash = true;
self
}
/// Set custom directory renderer
pub fn files_listing_renderer<F>(mut self, f: F) -> Self
where
for<'r, 's> F: Fn(&'r Directory, &'s HttpRequest) -> Result<ServiceResponse, io::Error>
+ 'static,
{
self.renderer = Rc::new(f);
self
}
/// Specifies mime override callback
pub fn mime_override<F>(mut self, f: F) -> Self
where
F: Fn(&mime::Name<'_>) -> DispositionType + 'static,
{
self.mime_override = Some(Rc::new(f));
self
}
/// Set index file
///
/// Shows specific index file for directory "/" instead of
/// showing files listing.
pub fn index_file<T: Into<String>>(mut self, index: T) -> Self {
self.index = Some(index.into());
self
}
#[inline]
/// Specifies whether to use ETag or not.
///
/// Default is true.
pub fn use_etag(mut self, value: bool) -> Self {
self.file_flags.set(named::Flags::ETAG, value);
self
}
#[inline]
/// Specifies whether to use Last-Modified or not.
///
/// Default is true.
pub fn use_last_modified(mut self, value: bool) -> Self {
self.file_flags.set(named::Flags::LAST_MD, value);
self
}
/// Specifies custom guards to use for directory listings and files.
///
/// Default behaviour allows GET and HEAD.
#[inline]
pub fn use_guards<G: Guard + 'static>(mut self, guards: G) -> Self {
self.guards = Some(Rc::new(Box::new(guards)));
self
}
/// Disable `Content-Disposition` header.
///
/// By default Content-Disposition` header is enabled.
#[inline]
pub fn disable_content_disposition(mut self) -> Self {
self.file_flags.remove(named::Flags::CONTENT_DISPOSITION);
self
}
/// Sets default handler which is used when no matched file could be found.
pub fn default_handler<F, U>(mut self, f: F) -> Self
where
F: IntoServiceFactory<U>,
U: ServiceFactory<
Config = (),
Request = ServiceRequest,
Response = ServiceResponse,
Error = Error,
> + 'static,
{
// create and configure default resource
self.default = Rc::new(RefCell::new(Some(Rc::new(boxed::factory(
f.into_factory().map_init_err(|_| ()),
)))));
self
}
}
impl HttpServiceFactory for Files {
fn register(self, config: &mut AppService) {
if self.default.borrow().is_none() {
*self.default.borrow_mut() = Some(config.default_service());
}
let rdef = if config.is_root() {
ResourceDef::root_prefix(&self.path)
} else {
ResourceDef::prefix(&self.path)
};
config.register_service(rdef, None, self, None)
}
}
impl ServiceFactory for Files {
type Request = ServiceRequest;
type Response = ServiceResponse;
type Error = Error;
type Config = ();
type Service = FilesService;
type InitError = ();
type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
fn new_service(&self, _: ()) -> Self::Future {
let mut srv = FilesService {
directory: self.directory.clone(),
index: self.index.clone(),
show_index: self.show_index,
redirect_to_slash: self.redirect_to_slash,
default: None,
renderer: self.renderer.clone(),
mime_override: self.mime_override.clone(),
file_flags: self.file_flags,
guards: self.guards.clone(),
};
if let Some(ref default) = *self.default.borrow() {
default
.new_service(())
.map(move |result| match result {
Ok(default) => {
srv.default = Some(default);
Ok(srv)
}
Err(_) => Err(()),
})
.boxed_local()
} else {
ok(srv).boxed_local()
}
}
}
pub struct FilesService {
directory: PathBuf,
index: Option<String>,
show_index: bool,
redirect_to_slash: bool,
default: Option<HttpService>,
renderer: Rc<DirectoryRenderer>,
mime_override: Option<Rc<MimeOverride>>,
file_flags: named::Flags,
// FIXME: Should re-visit later.
#[allow(clippy::redundant_allocation)]
guards: Option<Rc<Box<dyn Guard>>>,
}
impl FilesService {
#[allow(clippy::type_complexity)]
fn handle_err(
&mut self,
e: io::Error,
req: ServiceRequest,
) -> Either<
Ready<Result<ServiceResponse, Error>>,
LocalBoxFuture<'static, Result<ServiceResponse, Error>>,
> {
log::debug!("Files: Failed to handle {}: {}", req.path(), e);
if let Some(ref mut default) = self.default {
Either::Right(default.call(req))
} else {
Either::Left(ok(req.error_response(e)))
}
}
}
impl Service for FilesService {
type Request = ServiceRequest;
type Response = ServiceResponse;
type Error = Error;
#[allow(clippy::type_complexity)]
type Future = Either<
Ready<Result<Self::Response, Self::Error>>,
LocalBoxFuture<'static, Result<Self::Response, Self::Error>>,
>;
fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&mut self, req: ServiceRequest) -> Self::Future {
let is_method_valid = if let Some(guard) = &self.guards {
// execute user defined guards
(**guard).check(req.head())
} else {
// default behavior
matches!(*req.method(), Method::HEAD | Method::GET)
};
if !is_method_valid {
return Either::Left(ok(req.into_response(
actix_web::HttpResponse::MethodNotAllowed()
.header(header::CONTENT_TYPE, "text/plain")
.body("Request did not meet this resource's requirements."),
)));
}
let real_path = match PathBufWrp::get_pathbuf(req.match_info().path()) {
Ok(item) => item,
Err(e) => return Either::Left(ok(req.error_response(e))),
};
// full file path
let path = match self.directory.join(&real_path.0).canonicalize() {
Ok(path) => path,
Err(e) => return self.handle_err(e, req),
};
if path.is_dir() {
if let Some(ref redir_index) = self.index {
if self.redirect_to_slash && !req.path().ends_with('/') {
let redirect_to = format!("{}/", req.path());
return Either::Left(ok(req.into_response(
HttpResponse::Found()
.header(header::LOCATION, redirect_to)
.body("")
.into_body(),
)));
}
let path = path.join(redir_index);
match NamedFile::open(path) {
Ok(mut named_file) => {
if let Some(ref mime_override) = self.mime_override {
let new_disposition =
mime_override(&named_file.content_type.type_());
named_file.content_disposition.disposition = new_disposition;
}
named_file.flags = self.file_flags;
let (req, _) = req.into_parts();
Either::Left(ok(match named_file.into_response(&req) {
Ok(item) => ServiceResponse::new(req, item),
Err(e) => ServiceResponse::from_err(e, req),
}))
}
Err(e) => self.handle_err(e, req),
}
} else if self.show_index {
let dir = Directory::new(self.directory.clone(), path);
let (req, _) = req.into_parts();
let x = (self.renderer)(&dir, &req);
match x {
Ok(resp) => Either::Left(ok(resp)),
Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
}
} else {
Either::Left(ok(ServiceResponse::from_err(
FilesError::IsDirectory,
req.into_parts().0,
)))
}
} else {
match NamedFile::open(path) {
Ok(mut named_file) => {
if let Some(ref mime_override) = self.mime_override {
let new_disposition =
mime_override(&named_file.content_type.type_());
named_file.content_disposition.disposition = new_disposition;
}
named_file.flags = self.file_flags;
let (req, _) = req.into_parts();
match named_file.into_response(&req) {
Ok(item) => {
Either::Left(ok(ServiceResponse::new(req.clone(), item)))
}
Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
}
}
Err(e) => self.handle_err(e, req),
}
}
}
}
#[derive(Debug)]
struct PathBufWrp(PathBuf);
impl PathBufWrp {
fn get_pathbuf(path: &str) -> Result<Self, UriSegmentError> {
let mut buf = PathBuf::new();
for segment in path.split('/') {
if segment == ".." {
buf.pop();
} else if segment.starts_with('.') {
return Err(UriSegmentError::BadStart('.'));
} else if segment.starts_with('*') {
return Err(UriSegmentError::BadStart('*'));
} else if segment.ends_with(':') {
return Err(UriSegmentError::BadEnd(':'));
} else if segment.ends_with('>') {
return Err(UriSegmentError::BadEnd('>'));
} else if segment.ends_with('<') {
return Err(UriSegmentError::BadEnd('<'));
} else if segment.is_empty() {
continue;
} else if cfg!(windows) && segment.contains('\\') {
return Err(UriSegmentError::BadChar('\\'));
} else {
buf.push(segment)
}
}
Ok(PathBufWrp(buf))
}
}
impl FromRequest for PathBufWrp {
type Error = UriSegmentError;
type Future = Ready<Result<Self, Self::Error>>;
type Config = ();
fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
ready(PathBufWrp::get_pathbuf(req.match_info().path()))
}
}
#[cfg(test)]
mod tests {
use std::fs;
use std::iter::FromIterator;
use std::ops::Add;
use std::time::{Duration, SystemTime};
use std::{
fs::{self, File},
ops::Add,
time::{Duration, SystemTime},
};
use actix_service::ServiceFactory;
use actix_web::{
guard,
http::{
header::{self, ContentDisposition, DispositionParam, DispositionType},
Method, StatusCode,
},
middleware::Compress,
test::{self, TestRequest},
web, App, HttpResponse, Responder,
};
use futures_util::future::ok;
use super::*;
use actix_web::guard;
use actix_web::http::header::{
self, ContentDisposition, DispositionParam, DispositionType,
};
use actix_web::http::{Method, StatusCode};
use actix_web::middleware::Compress;
use actix_web::test::{self, TestRequest};
use actix_web::{App, Responder};
#[actix_rt::test]
async fn test_file_extension_to_mime() {
@ -1013,7 +446,7 @@ mod tests {
// Check file contents
let bytes = response.body().await.unwrap();
let data = Bytes::from(fs::read("tests/test.binary").unwrap());
let data = web::Bytes::from(fs::read("tests/test.binary").unwrap());
assert_eq!(bytes, data);
}
@ -1046,7 +479,7 @@ mod tests {
assert_eq!(response.status(), StatusCode::OK);
let bytes = test::read_body(response).await;
let data = Bytes::from(fs::read("tests/test space.binary").unwrap());
let data = web::Bytes::from(fs::read("tests/test space.binary").unwrap());
assert_eq!(bytes, data);
}
@ -1224,7 +657,7 @@ mod tests {
let resp = test::call_service(&mut st, req).await;
assert_eq!(resp.status(), StatusCode::OK);
let bytes = test::read_body(resp).await;
assert_eq!(bytes, Bytes::from_static(b"default content"));
assert_eq!(bytes, web::Bytes::from_static(b"default content"));
}
// #[actix_rt::test]
@ -1340,36 +773,4 @@ mod tests {
// let response = srv.execute(request.send()).unwrap();
// assert_eq!(response.status(), StatusCode::OK);
// }
#[actix_rt::test]
async fn test_path_buf() {
assert_eq!(
PathBufWrp::get_pathbuf("/test/.tt").map(|t| t.0),
Err(UriSegmentError::BadStart('.'))
);
assert_eq!(
PathBufWrp::get_pathbuf("/test/*tt").map(|t| t.0),
Err(UriSegmentError::BadStart('*'))
);
assert_eq!(
PathBufWrp::get_pathbuf("/test/tt:").map(|t| t.0),
Err(UriSegmentError::BadEnd(':'))
);
assert_eq!(
PathBufWrp::get_pathbuf("/test/tt<").map(|t| t.0),
Err(UriSegmentError::BadEnd('<'))
);
assert_eq!(
PathBufWrp::get_pathbuf("/test/tt>").map(|t| t.0),
Err(UriSegmentError::BadEnd('>'))
);
assert_eq!(
PathBufWrp::get_pathbuf("/seg1/seg2/").unwrap().0,
PathBuf::from_iter(vec!["seg1", "seg2"])
);
assert_eq!(
PathBufWrp::get_pathbuf("/seg1/../seg2/").unwrap().0,
PathBuf::from_iter(vec!["seg2"])
);
}
}

54
actix-files/src/named.rs
View file

@ -7,17 +7,20 @@ use std::time::{SystemTime, UNIX_EPOCH};
#[cfg(unix)]
use std::os::unix::fs::MetadataExt;
use bitflags::bitflags;
use mime_guess::from_path;
use actix_http::body::SizedStream;
use actix_web::dev::BodyEncoding;
use actix_web::http::header::{
self, Charset, ContentDisposition, DispositionParam, DispositionType, ExtendedValue,
use actix_web::{
dev::{BodyEncoding, SizedStream},
http::{
header::{
self, Charset, ContentDisposition, DispositionParam, DispositionType,
ExtendedValue,
},
ContentEncoding, StatusCode,
},
Error, HttpMessage, HttpRequest, HttpResponse, Responder,
};
use actix_web::http::{ContentEncoding, StatusCode};
use actix_web::{Error, HttpMessage, HttpRequest, HttpResponse, Responder};
use bitflags::bitflags;
use futures_util::future::{ready, Ready};
use mime_guess::from_path;
use crate::range::HttpRange;
use crate::ChunkedReadFile;
@ -93,8 +96,10 @@ impl NamedFile {
mime::IMAGE | mime::TEXT | mime::VIDEO => DispositionType::Inline,
_ => DispositionType::Attachment,
};
let mut parameters =
vec![DispositionParam::Filename(String::from(filename.as_ref()))];
if !filename.is_ascii() {
parameters.push(DispositionParam::FilenameExt(ExtendedValue {
charset: Charset::Ext(String::from("UTF-8")),
@ -102,16 +107,19 @@ impl NamedFile {
value: filename.into_owned().into_bytes(),
}))
}
let cd = ContentDisposition {
disposition,
parameters,
};
(ct, cd)
};
let md = file.metadata()?;
let modified = md.modified().ok();
let encoding = None;
Ok(NamedFile {
path,
file,
@ -242,6 +250,7 @@ impl NamedFile {
let dur = mtime
.duration_since(UNIX_EPOCH)
.expect("modification time must be after epoch");
header::EntityTag::strong(format!(
"{:x}:{:x}:{:x}:{:x}",
ino,
@ -256,9 +265,11 @@ impl NamedFile {
self.modified.map(|mtime| mtime.into())
}
/// Creates an `HttpResponse` with file as a streaming body.
pub fn into_response(self, req: &HttpRequest) -> Result<HttpResponse, Error> {
if self.status_code != StatusCode::OK {
let mut resp = HttpResponse::build(self.status_code);
resp.set(header::ContentType(self.content_type.clone()))
.if_true(self.flags.contains(Flags::CONTENT_DISPOSITION), |res| {
res.header(
@ -266,9 +277,11 @@ impl NamedFile {
self.content_disposition.to_string(),
);
});
if let Some(current_encoding) = self.encoding {
resp.encoding(current_encoding);
}
let reader = ChunkedReadFile {
size: self.md.len(),
offset: 0,
@ -276,6 +289,7 @@ impl NamedFile {
fut: None,
counter: 0,
};
return Ok(resp.streaming(reader));
}
@ -284,6 +298,7 @@ impl NamedFile {
} else {
None
};
let last_modified = if self.flags.contains(Flags::LAST_MD) {
self.last_modified()
} else {
@ -298,6 +313,7 @@ impl NamedFile {
{
let t1: SystemTime = m.clone().into();
let t2: SystemTime = since.clone().into();
match (t1.duration_since(UNIX_EPOCH), t2.duration_since(UNIX_EPOCH)) {
(Ok(t1), Ok(t2)) => t1 > t2,
_ => false,
@ -309,13 +325,14 @@ impl NamedFile {
// check last modified
let not_modified = if !none_match(etag.as_ref(), req) {
true
} else if req.headers().contains_key(&header::IF_NONE_MATCH) {
} else if req.headers().contains_key(header::IF_NONE_MATCH) {
false
} else if let (Some(ref m), Some(header::IfModifiedSince(ref since))) =
(last_modified, req.get_header())
{
let t1: SystemTime = m.clone().into();
let t2: SystemTime = since.clone().into();
match (t1.duration_since(UNIX_EPOCH), t2.duration_since(UNIX_EPOCH)) {
(Ok(t1), Ok(t2)) => t1 <= t2,
_ => false,
@ -332,6 +349,7 @@ impl NamedFile {
self.content_disposition.to_string(),
);
});
// default compressing
if let Some(current_encoding) = self.encoding {
resp.encoding(current_encoding);
@ -350,11 +368,12 @@ impl NamedFile {
let mut offset = 0;
// check for range header
if let Some(ranges) = req.headers().get(&header::RANGE) {
if let Ok(rangesheader) = ranges.to_str() {
if let Ok(rangesvec) = HttpRange::parse(rangesheader, length) {
length = rangesvec[0].length;
offset = rangesvec[0].start;
if let Some(ranges) = req.headers().get(header::RANGE) {
if let Ok(ranges_header) = ranges.to_str() {
if let Ok(ranges) = HttpRange::parse(ranges_header, length) {
length = ranges[0].length;
offset = ranges[0].start;
resp.encoding(ContentEncoding::Identity);
resp.header(
header::CONTENT_RANGE,
@ -414,6 +433,7 @@ impl DerefMut for NamedFile {
fn any_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
match req.get_header::<header::IfMatch>() {
None | Some(header::IfMatch::Any) => true,
Some(header::IfMatch::Items(ref items)) => {
if let Some(some_etag) = etag {
for item in items {
@ -422,6 +442,7 @@ fn any_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
}
}
}
false
}
}
@ -431,6 +452,7 @@ fn any_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
fn none_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
match req.get_header::<header::IfNoneMatch>() {
Some(header::IfNoneMatch::Any) => false,
Some(header::IfNoneMatch::Items(ref items)) => {
if let Some(some_etag) = etag {
for item in items {
@ -439,8 +461,10 @@ fn none_match(etag: Option<&header::EntityTag>, req: &HttpRequest) -> bool {
}
}
}
true
}
None => true,
}
}

99
actix-files/src/path_buf.rs Normal file
View file

@ -0,0 +1,99 @@
use std::{
path::{Path, PathBuf},
str::FromStr,
};
use actix_web::{dev::Payload, FromRequest, HttpRequest};
use futures_util::future::{ready, Ready};
use crate::error::UriSegmentError;
#[derive(Debug)]
pub(crate) struct PathBufWrap(PathBuf);
impl FromStr for PathBufWrap {
type Err = UriSegmentError;
fn from_str(path: &str) -> Result<Self, Self::Err> {
let mut buf = PathBuf::new();
for segment in path.split('/') {
if segment == ".." {
buf.pop();
} else if segment.starts_with('.') {
return Err(UriSegmentError::BadStart('.'));
} else if segment.starts_with('*') {
return Err(UriSegmentError::BadStart('*'));
} else if segment.ends_with(':') {
return Err(UriSegmentError::BadEnd(':'));
} else if segment.ends_with('>') {
return Err(UriSegmentError::BadEnd('>'));
} else if segment.ends_with('<') {
return Err(UriSegmentError::BadEnd('<'));
} else if segment.is_empty() {
continue;
} else if cfg!(windows) && segment.contains('\\') {
return Err(UriSegmentError::BadChar('\\'));
} else {
buf.push(segment)
}
}
Ok(PathBufWrap(buf))
}
}
impl AsRef<Path> for PathBufWrap {
fn as_ref(&self) -> &Path {
self.0.as_ref()
}
}
impl FromRequest for PathBufWrap {
type Error = UriSegmentError;
type Future = Ready<Result<Self, Self::Error>>;
type Config = ();
fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
ready(req.match_info().path().parse())
}
}
#[cfg(test)]
mod tests {
use std::iter::FromIterator;
use super::*;
#[test]
fn test_path_buf() {
assert_eq!(
PathBufWrap::from_str("/test/.tt").map(|t| t.0),
Err(UriSegmentError::BadStart('.'))
);
assert_eq!(
PathBufWrap::from_str("/test/*tt").map(|t| t.0),
Err(UriSegmentError::BadStart('*'))
);
assert_eq!(
PathBufWrap::from_str("/test/tt:").map(|t| t.0),
Err(UriSegmentError::BadEnd(':'))
);
assert_eq!(
PathBufWrap::from_str("/test/tt<").map(|t| t.0),
Err(UriSegmentError::BadEnd('<'))
);
assert_eq!(
PathBufWrap::from_str("/test/tt>").map(|t| t.0),
Err(UriSegmentError::BadEnd('>'))
);
assert_eq!(
PathBufWrap::from_str("/seg1/seg2/").unwrap().0,
PathBuf::from_iter(vec!["seg1", "seg2"])
);
assert_eq!(
PathBufWrap::from_str("/seg1/../seg2/").unwrap().0,
PathBuf::from_iter(vec!["seg2"])
);
}
}

5
actix-files/src/range.rs
View file

@ -1,11 +1,14 @@
/// HTTP Range header representation.
#[derive(Debug, Clone, Copy)]
pub struct HttpRange {
/// Start of range.
pub start: u64,
/// Length of range.
pub length: u64,
}
static PREFIX: &str = "bytes=";
const PREFIX: &str = "bytes=";
const PREFIX_LEN: usize = 6;
impl HttpRange {

167
actix-files/src/service.rs Normal file
View file

@ -0,0 +1,167 @@
use std::{
fmt, io,
path::PathBuf,
rc::Rc,
task::{Context, Poll},
};
use actix_service::Service;
use actix_web::{
dev::{ServiceRequest, ServiceResponse},
error::Error,
guard::Guard,
http::{header, Method},
HttpResponse,
};
use futures_util::future::{ok, Either, LocalBoxFuture, Ready};
use crate::{
named, Directory, DirectoryRenderer, FilesError, HttpService, MimeOverride,
NamedFile, PathBufWrap,
};
/// Assembled file serving service.
pub struct FilesService {
pub(crate) directory: PathBuf,
pub(crate) index: Option<String>,
pub(crate) show_index: bool,
pub(crate) redirect_to_slash: bool,
pub(crate) default: Option<HttpService>,
pub(crate) renderer: Rc<DirectoryRenderer>,
pub(crate) mime_override: Option<Rc<MimeOverride>>,
pub(crate) file_flags: named::Flags,
pub(crate) guards: Option<Rc<dyn Guard>>,
}
type FilesServiceFuture = Either<
Ready<Result<ServiceResponse, Error>>,
LocalBoxFuture<'static, Result<ServiceResponse, Error>>,
>;
impl FilesService {
fn handle_err(&mut self, e: io::Error, req: ServiceRequest) -> FilesServiceFuture {
log::debug!("Failed to handle {}: {}", req.path(), e);
if let Some(ref mut default) = self.default {
Either::Right(default.call(req))
} else {
Either::Left(ok(req.error_response(e)))
}
}
}
impl fmt::Debug for FilesService {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("FilesService")
}
}
impl Service for FilesService {
type Request = ServiceRequest;
type Response = ServiceResponse;
type Error = Error;
type Future = FilesServiceFuture;
fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&mut self, req: ServiceRequest) -> Self::Future {
let is_method_valid = if let Some(guard) = &self.guards {
// execute user defined guards
(**guard).check(req.head())
} else {
// default behavior
matches!(*req.method(), Method::HEAD | Method::GET)
};
if !is_method_valid {
return Either::Left(ok(req.into_response(
actix_web::HttpResponse::MethodNotAllowed()
.header(header::CONTENT_TYPE, "text/plain")
.body("Request did not meet this resource's requirements."),
)));
}
let real_path: PathBufWrap = match req.match_info().path().parse() {
Ok(item) => item,
Err(e) => return Either::Left(ok(req.error_response(e))),
};
// full file path
let path = match self.directory.join(&real_path).canonicalize() {
Ok(path) => path,
Err(e) => return self.handle_err(e, req),
};
if path.is_dir() {
if let Some(ref redir_index) = self.index {
if self.redirect_to_slash && !req.path().ends_with('/') {
let redirect_to = format!("{}/", req.path());
return Either::Left(ok(req.into_response(
HttpResponse::Found()
.header(header::LOCATION, redirect_to)
.body("")
.into_body(),
)));
}
let path = path.join(redir_index);
match NamedFile::open(path) {
Ok(mut named_file) => {
if let Some(ref mime_override) = self.mime_override {
let new_disposition =
mime_override(&named_file.content_type.type_());
named_file.content_disposition.disposition = new_disposition;
}
named_file.flags = self.file_flags;
let (req, _) = req.into_parts();
Either::Left(ok(match named_file.into_response(&req) {
Ok(item) => ServiceResponse::new(req, item),
Err(e) => ServiceResponse::from_err(e, req),
}))
}
Err(e) => self.handle_err(e, req),
}
} else if self.show_index {
let dir = Directory::new(self.directory.clone(), path);
let (req, _) = req.into_parts();
let x = (self.renderer)(&dir, &req);
match x {
Ok(resp) => Either::Left(ok(resp)),
Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
}
} else {
Either::Left(ok(ServiceResponse::from_err(
FilesError::IsDirectory,
req.into_parts().0,
)))
}
} else {
match NamedFile::open(path) {
Ok(mut named_file) => {
if let Some(ref mime_override) = self.mime_override {
let new_disposition =
mime_override(&named_file.content_type.type_());
named_file.content_disposition.disposition = new_disposition;
}
named_file.flags = self.file_flags;
let (req, _) = req.into_parts();
match named_file.into_response(&req) {
Ok(item) => {
Either::Left(ok(ServiceResponse::new(req.clone(), item)))
}
Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
}
}
Err(e) => self.handle_err(e, req),
}
}
}
}