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denoland-deno/runtime/ops/fs.rs
Ryan Dahl 1fb5858009
chore: update copyright to 2022 (#13306)
Co-authored-by: Erfan Safari <erfanshield@outlook.com>
2022-01-07 22:09:52 -05:00

1960 lines
49 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
// Some deserializer fields are only used on Unix and Windows build fails without it
use super::io::StdFileResource;
use super::utils::into_string;
use crate::fs_util::canonicalize_path;
use crate::permissions::Permissions;
use deno_core::error::bad_resource_id;
use deno_core::error::custom_error;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::op_async;
use deno_core::op_sync;
use deno_core::Extension;
use deno_core::OpState;
use deno_core::RcRef;
use deno_core::ResourceId;
use deno_crypto::rand::thread_rng;
use deno_crypto::rand::Rng;
use log::debug;
use serde::Deserialize;
use serde::Serialize;
use std::cell::RefCell;
use std::convert::From;
use std::env::{current_dir, set_current_dir, temp_dir};
use std::io;
use std::io::{Error, Seek, SeekFrom};
use std::path::{Path, PathBuf};
use std::rc::Rc;
use std::time::SystemTime;
use std::time::UNIX_EPOCH;
use tokio::io::AsyncSeekExt;
#[cfg(not(unix))]
use deno_core::error::generic_error;
#[cfg(not(unix))]
use deno_core::error::not_supported;
pub fn init() -> Extension {
Extension::builder()
.ops(vec![
("op_open_sync", op_sync(op_open_sync)),
("op_open_async", op_async(op_open_async)),
("op_seek_sync", op_sync(op_seek_sync)),
("op_seek_async", op_async(op_seek_async)),
("op_fdatasync_sync", op_sync(op_fdatasync_sync)),
("op_fdatasync_async", op_async(op_fdatasync_async)),
("op_fsync_sync", op_sync(op_fsync_sync)),
("op_fsync_async", op_async(op_fsync_async)),
("op_fstat_sync", op_sync(op_fstat_sync)),
("op_fstat_async", op_async(op_fstat_async)),
("op_flock_sync", op_sync(op_flock_sync)),
("op_flock_async", op_async(op_flock_async)),
("op_funlock_sync", op_sync(op_funlock_sync)),
("op_funlock_async", op_async(op_funlock_async)),
("op_umask", op_sync(op_umask)),
("op_chdir", op_sync(op_chdir)),
("op_mkdir_sync", op_sync(op_mkdir_sync)),
("op_mkdir_async", op_async(op_mkdir_async)),
("op_chmod_sync", op_sync(op_chmod_sync)),
("op_chmod_async", op_async(op_chmod_async)),
("op_chown_sync", op_sync(op_chown_sync)),
("op_chown_async", op_async(op_chown_async)),
("op_remove_sync", op_sync(op_remove_sync)),
("op_remove_async", op_async(op_remove_async)),
("op_copy_file_sync", op_sync(op_copy_file_sync)),
("op_copy_file_async", op_async(op_copy_file_async)),
("op_stat_sync", op_sync(op_stat_sync)),
("op_stat_async", op_async(op_stat_async)),
("op_realpath_sync", op_sync(op_realpath_sync)),
("op_realpath_async", op_async(op_realpath_async)),
("op_read_dir_sync", op_sync(op_read_dir_sync)),
("op_read_dir_async", op_async(op_read_dir_async)),
("op_rename_sync", op_sync(op_rename_sync)),
("op_rename_async", op_async(op_rename_async)),
("op_link_sync", op_sync(op_link_sync)),
("op_link_async", op_async(op_link_async)),
("op_symlink_sync", op_sync(op_symlink_sync)),
("op_symlink_async", op_async(op_symlink_async)),
("op_read_link_sync", op_sync(op_read_link_sync)),
("op_read_link_async", op_async(op_read_link_async)),
("op_ftruncate_sync", op_sync(op_ftruncate_sync)),
("op_ftruncate_async", op_async(op_ftruncate_async)),
("op_truncate_sync", op_sync(op_truncate_sync)),
("op_truncate_async", op_async(op_truncate_async)),
("op_make_temp_dir_sync", op_sync(op_make_temp_dir_sync)),
("op_make_temp_dir_async", op_async(op_make_temp_dir_async)),
("op_make_temp_file_sync", op_sync(op_make_temp_file_sync)),
("op_make_temp_file_async", op_async(op_make_temp_file_async)),
("op_cwd", op_sync(op_cwd)),
("op_futime_sync", op_sync(op_futime_sync)),
("op_futime_async", op_async(op_futime_async)),
("op_utime_sync", op_sync(op_utime_sync)),
("op_utime_async", op_async(op_utime_async)),
])
.build()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct OpenArgs {
path: String,
mode: Option<u32>,
options: OpenOptions,
}
#[derive(Deserialize, Default, Debug)]
#[serde(rename_all = "camelCase")]
#[serde(default)]
pub struct OpenOptions {
read: bool,
write: bool,
create: bool,
truncate: bool,
append: bool,
create_new: bool,
}
fn open_helper(
state: &mut OpState,
args: OpenArgs,
) -> Result<(PathBuf, std::fs::OpenOptions), AnyError> {
let path = Path::new(&args.path).to_path_buf();
let mut open_options = std::fs::OpenOptions::new();
if let Some(mode) = args.mode {
// mode only used if creating the file on Unix
// if not specified, defaults to 0o666
#[cfg(unix)]
{
use std::os::unix::fs::OpenOptionsExt;
open_options.mode(mode & 0o777);
}
#[cfg(not(unix))]
let _ = mode; // avoid unused warning
}
let permissions = state.borrow_mut::<Permissions>();
let options = args.options;
if options.read {
permissions.read.check(&path)?;
}
if options.write || options.append {
permissions.write.check(&path)?;
}
open_options
.read(options.read)
.create(options.create)
.write(options.write)
.truncate(options.truncate)
.append(options.append)
.create_new(options.create_new);
Ok((path, open_options))
}
fn op_open_sync(
state: &mut OpState,
args: OpenArgs,
_: (),
) -> Result<ResourceId, AnyError> {
let (path, open_options) = open_helper(state, args)?;
let std_file = open_options.open(&path).map_err(|err| {
Error::new(err.kind(), format!("{}, open '{}'", err, path.display()))
})?;
let tokio_file = tokio::fs::File::from_std(std_file);
let resource = StdFileResource::fs_file(tokio_file);
let rid = state.resource_table.add(resource);
Ok(rid)
}
async fn op_open_async(
state: Rc<RefCell<OpState>>,
args: OpenArgs,
_: (),
) -> Result<ResourceId, AnyError> {
let (path, open_options) = open_helper(&mut state.borrow_mut(), args)?;
let tokio_file = tokio::fs::OpenOptions::from(open_options)
.open(&path)
.await
.map_err(|err| {
Error::new(err.kind(), format!("{}, open '{}'", err, path.display()))
})?;
let resource = StdFileResource::fs_file(tokio_file);
let rid = state.borrow_mut().resource_table.add(resource);
Ok(rid)
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SeekArgs {
rid: ResourceId,
offset: i64,
whence: i32,
}
fn seek_helper(args: SeekArgs) -> Result<(u32, SeekFrom), AnyError> {
let rid = args.rid;
let offset = args.offset;
let whence = args.whence as u32;
// Translate seek mode to Rust repr.
let seek_from = match whence {
0 => SeekFrom::Start(offset as u64),
1 => SeekFrom::Current(offset),
2 => SeekFrom::End(offset),
_ => {
return Err(type_error(format!("Invalid seek mode: {}", whence)));
}
};
Ok((rid, seek_from))
}
fn op_seek_sync(
state: &mut OpState,
args: SeekArgs,
_: (),
) -> Result<u64, AnyError> {
let (rid, seek_from) = seek_helper(args)?;
let pos = StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.seek(seek_from).map_err(AnyError::from),
Err(_) => Err(type_error(
"cannot seek on this type of resource".to_string(),
)),
})?;
Ok(pos)
}
async fn op_seek_async(
state: Rc<RefCell<OpState>>,
args: SeekArgs,
_: (),
) -> Result<u64, AnyError> {
let (rid, seek_from) = seek_helper(args)?;
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
let pos = (*fs_file).0.as_mut().unwrap().seek(seek_from).await?;
Ok(pos)
}
fn op_fdatasync_sync(
state: &mut OpState,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.sync_data().map_err(AnyError::from),
Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
})?;
Ok(())
}
async fn op_fdatasync_async(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
(*fs_file).0.as_mut().unwrap().sync_data().await?;
Ok(())
}
fn op_fsync_sync(
state: &mut OpState,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.sync_all().map_err(AnyError::from),
Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
})?;
Ok(())
}
async fn op_fsync_async(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
(*fs_file).0.as_mut().unwrap().sync_all().await?;
Ok(())
}
fn op_fstat_sync(
state: &mut OpState,
rid: ResourceId,
_: (),
) -> Result<FsStat, AnyError> {
let metadata = StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.metadata().map_err(AnyError::from),
Err(_) => Err(type_error("cannot stat this type of resource".to_string())),
})?;
Ok(get_stat(metadata))
}
async fn op_fstat_async(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
_: (),
) -> Result<FsStat, AnyError> {
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
let metadata = (*fs_file).0.as_mut().unwrap().metadata().await?;
Ok(get_stat(metadata))
}
fn op_flock_sync(
state: &mut OpState,
rid: ResourceId,
exclusive: bool,
) -> Result<(), AnyError> {
use fs3::FileExt;
super::check_unstable(state, "Deno.flockSync");
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
if exclusive {
std_file.lock_exclusive()?;
} else {
std_file.lock_shared()?;
}
Ok(())
}
Err(_) => Err(type_error("cannot lock this type of resource".to_string())),
})
}
async fn op_flock_async(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
exclusive: bool,
) -> Result<(), AnyError> {
use fs3::FileExt;
super::check_unstable2(&state, "Deno.flock");
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
let std_file = (*fs_file)
.0
.as_mut()
.unwrap()
.try_clone()
.await?
.into_std()
.await;
tokio::task::spawn_blocking(move || -> Result<(), AnyError> {
if exclusive {
std_file.lock_exclusive()?;
} else {
std_file.lock_shared()?;
}
Ok(())
})
.await?
}
fn op_funlock_sync(
state: &mut OpState,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
use fs3::FileExt;
super::check_unstable(state, "Deno.funlockSync");
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
std_file.unlock()?;
Ok(())
}
Err(_) => Err(type_error("cannot lock this type of resource".to_string())),
})
}
async fn op_funlock_async(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
_: (),
) -> Result<(), AnyError> {
use fs3::FileExt;
super::check_unstable2(&state, "Deno.funlock");
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
let std_file = (*fs_file)
.0
.as_mut()
.unwrap()
.try_clone()
.await?
.into_std()
.await;
tokio::task::spawn_blocking(move || -> Result<(), AnyError> {
std_file.unlock()?;
Ok(())
})
.await?
}
fn op_umask(
state: &mut OpState,
mask: Option<u32>,
_: (),
) -> Result<u32, AnyError> {
super::check_unstable(state, "Deno.umask");
// TODO implement umask for Windows
// see https://github.com/nodejs/node/blob/master/src/node_process_methods.cc
// and https://docs.microsoft.com/fr-fr/cpp/c-runtime-library/reference/umask?view=vs-2019
#[cfg(not(unix))]
{
let _ = mask; // avoid unused warning.
Err(not_supported())
}
#[cfg(unix)]
{
use nix::sys::stat::mode_t;
use nix::sys::stat::umask;
use nix::sys::stat::Mode;
let r = if let Some(mask) = mask {
// If mask provided, return previous.
umask(Mode::from_bits_truncate(mask as mode_t))
} else {
// If no mask provided, we query the current. Requires two syscalls.
let prev = umask(Mode::from_bits_truncate(0o777));
let _ = umask(prev);
prev
};
Ok(r.bits() as u32)
}
}
fn op_chdir(
state: &mut OpState,
directory: String,
_: (),
) -> Result<(), AnyError> {
let d = PathBuf::from(&directory);
state.borrow_mut::<Permissions>().read.check(&d)?;
set_current_dir(&d).map_err(|err| {
Error::new(err.kind(), format!("{}, chdir '{}'", err, directory))
})?;
Ok(())
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct MkdirArgs {
path: String,
recursive: bool,
mode: Option<u32>,
}
fn op_mkdir_sync(
state: &mut OpState,
args: MkdirArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
let mode = args.mode.unwrap_or(0o777) & 0o777;
state.borrow_mut::<Permissions>().write.check(&path)?;
debug!("op_mkdir {} {:o} {}", path.display(), mode, args.recursive);
let mut builder = std::fs::DirBuilder::new();
builder.recursive(args.recursive);
#[cfg(unix)]
{
use std::os::unix::fs::DirBuilderExt;
builder.mode(mode);
}
builder.create(&path).map_err(|err| {
Error::new(err.kind(), format!("{}, mkdir '{}'", err, path.display()))
})?;
Ok(())
}
async fn op_mkdir_async(
state: Rc<RefCell<OpState>>,
args: MkdirArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
let mode = args.mode.unwrap_or(0o777) & 0o777;
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_mkdir {} {:o} {}", path.display(), mode, args.recursive);
let mut builder = std::fs::DirBuilder::new();
builder.recursive(args.recursive);
#[cfg(unix)]
{
use std::os::unix::fs::DirBuilderExt;
builder.mode(mode);
}
builder.create(&path).map_err(|err| {
Error::new(err.kind(), format!("{}, mkdir '{}'", err, path.display()))
})?;
Ok(())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChmodArgs {
path: String,
mode: u32,
}
fn op_chmod_sync(
state: &mut OpState,
args: ChmodArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
let mode = args.mode & 0o777;
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, chmod '{}'", err, path.display()))
};
state.borrow_mut::<Permissions>().write.check(&path)?;
debug!("op_chmod_sync {} {:o}", path.display(), mode);
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
let permissions = PermissionsExt::from_mode(mode);
std::fs::set_permissions(&path, permissions).map_err(err_mapper)?;
Ok(())
}
// TODO Implement chmod for Windows (#4357)
#[cfg(not(unix))]
{
// Still check file/dir exists on Windows
let _metadata = std::fs::metadata(&path).map_err(err_mapper)?;
Err(generic_error("Not implemented"))
}
}
async fn op_chmod_async(
state: Rc<RefCell<OpState>>,
args: ChmodArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
let mode = args.mode & 0o777;
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_chmod_async {} {:o}", path.display(), mode);
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, chmod '{}'", err, path.display()))
};
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
let permissions = PermissionsExt::from_mode(mode);
std::fs::set_permissions(&path, permissions).map_err(err_mapper)?;
Ok(())
}
// TODO Implement chmod for Windows (#4357)
#[cfg(not(unix))]
{
// Still check file/dir exists on Windows
let _metadata = std::fs::metadata(&path).map_err(err_mapper)?;
Err(not_supported())
}
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChownArgs {
path: String,
uid: Option<u32>,
gid: Option<u32>,
}
fn op_chown_sync(
state: &mut OpState,
args: ChownArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
state.borrow_mut::<Permissions>().write.check(&path)?;
debug!(
"op_chown_sync {} {:?} {:?}",
path.display(),
args.uid,
args.gid,
);
#[cfg(unix)]
{
use crate::errors::get_nix_error_class;
use nix::unistd::{chown, Gid, Uid};
let nix_uid = args.uid.map(Uid::from_raw);
let nix_gid = args.gid.map(Gid::from_raw);
chown(&path, nix_uid, nix_gid).map_err(|err| {
custom_error(
get_nix_error_class(&err),
format!("{}, chown '{}'", err.desc(), path.display()),
)
})?;
Ok(())
}
// TODO Implement chown for Windows
#[cfg(not(unix))]
{
Err(generic_error("Not implemented"))
}
}
async fn op_chown_async(
state: Rc<RefCell<OpState>>,
args: ChownArgs,
_: (),
) -> Result<(), AnyError> {
let path = Path::new(&args.path).to_path_buf();
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!(
"op_chown_async {} {:?} {:?}",
path.display(),
args.uid,
args.gid,
);
#[cfg(unix)]
{
use crate::errors::get_nix_error_class;
use nix::unistd::{chown, Gid, Uid};
let nix_uid = args.uid.map(Uid::from_raw);
let nix_gid = args.gid.map(Gid::from_raw);
chown(&path, nix_uid, nix_gid).map_err(|err| {
custom_error(
get_nix_error_class(&err),
format!("{}, chown '{}'", err.desc(), path.display()),
)
})?;
Ok(())
}
// TODO Implement chown for Windows
#[cfg(not(unix))]
Err(not_supported())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct RemoveArgs {
path: String,
recursive: bool,
}
fn op_remove_sync(
state: &mut OpState,
args: RemoveArgs,
_: (),
) -> Result<(), AnyError> {
let path = PathBuf::from(&args.path);
let recursive = args.recursive;
state.borrow_mut::<Permissions>().write.check(&path)?;
#[cfg(not(unix))]
use std::os::windows::prelude::MetadataExt;
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, remove '{}'", err, path.display()))
};
let metadata = std::fs::symlink_metadata(&path).map_err(err_mapper)?;
debug!("op_remove_sync {} {}", path.display(), recursive);
let file_type = metadata.file_type();
if file_type.is_file() {
std::fs::remove_file(&path).map_err(err_mapper)?;
} else if recursive {
std::fs::remove_dir_all(&path).map_err(err_mapper)?;
} else if file_type.is_symlink() {
#[cfg(unix)]
std::fs::remove_file(&path).map_err(err_mapper)?;
#[cfg(not(unix))]
{
use winapi::um::winnt::FILE_ATTRIBUTE_DIRECTORY;
if metadata.file_attributes() & FILE_ATTRIBUTE_DIRECTORY != 0 {
std::fs::remove_dir(&path).map_err(err_mapper)?;
} else {
std::fs::remove_file(&path).map_err(err_mapper)?;
}
}
} else if file_type.is_dir() {
std::fs::remove_dir(&path).map_err(err_mapper)?;
} else {
// pipes, sockets, etc...
std::fs::remove_file(&path).map_err(err_mapper)?;
}
Ok(())
}
async fn op_remove_async(
state: Rc<RefCell<OpState>>,
args: RemoveArgs,
_: (),
) -> Result<(), AnyError> {
let path = PathBuf::from(&args.path);
let recursive = args.recursive;
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check(&path)?;
}
tokio::task::spawn_blocking(move || {
#[cfg(not(unix))]
use std::os::windows::prelude::MetadataExt;
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, remove '{}'", err, path.display()))
};
let metadata = std::fs::symlink_metadata(&path).map_err(err_mapper)?;
debug!("op_remove_async {} {}", path.display(), recursive);
let file_type = metadata.file_type();
if file_type.is_file() {
std::fs::remove_file(&path).map_err(err_mapper)?;
} else if recursive {
std::fs::remove_dir_all(&path).map_err(err_mapper)?;
} else if file_type.is_symlink() {
#[cfg(unix)]
std::fs::remove_file(&path).map_err(err_mapper)?;
#[cfg(not(unix))]
{
use winapi::um::winnt::FILE_ATTRIBUTE_DIRECTORY;
if metadata.file_attributes() & FILE_ATTRIBUTE_DIRECTORY != 0 {
std::fs::remove_dir(&path).map_err(err_mapper)?;
} else {
std::fs::remove_file(&path).map_err(err_mapper)?;
}
}
} else if file_type.is_dir() {
std::fs::remove_dir(&path).map_err(err_mapper)?;
} else {
// pipes, sockets, etc...
std::fs::remove_file(&path).map_err(err_mapper)?;
}
Ok(())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CopyFileArgs {
from: String,
to: String,
}
fn op_copy_file_sync(
state: &mut OpState,
args: CopyFileArgs,
_: (),
) -> Result<(), AnyError> {
let from = PathBuf::from(&args.from);
let to = PathBuf::from(&args.to);
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&from)?;
permissions.write.check(&to)?;
debug!("op_copy_file_sync {} {}", from.display(), to.display());
// On *nix, Rust reports non-existent `from` as ErrorKind::InvalidInput
// See https://github.com/rust-lang/rust/issues/54800
// Once the issue is resolved, we should remove this workaround.
if cfg!(unix) && !from.is_file() {
return Err(custom_error(
"NotFound",
format!(
"File not found, copy '{}' -> '{}'",
from.display(),
to.display()
),
));
}
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, copy '{}' -> '{}'", err, from.display(), to.display()),
)
};
// returns size of from as u64 (we ignore)
std::fs::copy(&from, &to).map_err(err_mapper)?;
Ok(())
}
async fn op_copy_file_async(
state: Rc<RefCell<OpState>>,
args: CopyFileArgs,
_: (),
) -> Result<(), AnyError> {
let from = PathBuf::from(&args.from);
let to = PathBuf::from(&args.to);
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&from)?;
permissions.write.check(&to)?;
}
debug!("op_copy_file_async {} {}", from.display(), to.display());
tokio::task::spawn_blocking(move || {
// On *nix, Rust reports non-existent `from` as ErrorKind::InvalidInput
// See https://github.com/rust-lang/rust/issues/54800
// Once the issue is resolved, we should remove this workaround.
if cfg!(unix) && !from.is_file() {
return Err(custom_error(
"NotFound",
format!(
"File not found, copy '{}' -> '{}'",
from.display(),
to.display()
),
));
}
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, copy '{}' -> '{}'", err, from.display(), to.display()),
)
};
// returns size of from as u64 (we ignore)
std::fs::copy(&from, &to).map_err(err_mapper)?;
Ok(())
})
.await
.unwrap()
}
fn to_msec(maybe_time: Result<SystemTime, io::Error>) -> Option<u64> {
match maybe_time {
Ok(time) => {
let msec = time
.duration_since(UNIX_EPOCH)
.map(|t| t.as_millis() as u64)
.unwrap_or_else(|err| err.duration().as_millis() as u64);
Some(msec)
}
Err(_) => None,
}
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct FsStat {
is_file: bool,
is_directory: bool,
is_symlink: bool,
size: u64,
// In milliseconds, like JavaScript. Available on both Unix or Windows.
mtime: Option<u64>,
atime: Option<u64>,
birthtime: Option<u64>,
// Following are only valid under Unix.
dev: u64,
ino: u64,
mode: u32,
nlink: u64,
uid: u32,
gid: u32,
rdev: u64,
blksize: u64,
blocks: u64,
}
#[inline(always)]
fn get_stat(metadata: std::fs::Metadata) -> FsStat {
// Unix stat member (number types only). 0 if not on unix.
macro_rules! usm {
($member:ident) => {{
#[cfg(unix)]
{
metadata.$member()
}
#[cfg(not(unix))]
{
0
}
}};
}
#[cfg(unix)]
use std::os::unix::fs::MetadataExt;
FsStat {
is_file: metadata.is_file(),
is_directory: metadata.is_dir(),
is_symlink: metadata.file_type().is_symlink(),
size: metadata.len(),
// In milliseconds, like JavaScript. Available on both Unix or Windows.
mtime: to_msec(metadata.modified()),
atime: to_msec(metadata.accessed()),
birthtime: to_msec(metadata.created()),
// Following are only valid under Unix.
dev: usm!(dev),
ino: usm!(ino),
mode: usm!(mode),
nlink: usm!(nlink),
uid: usm!(uid),
gid: usm!(gid),
rdev: usm!(rdev),
blksize: usm!(blksize),
blocks: usm!(blocks),
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct StatArgs {
path: String,
lstat: bool,
}
fn op_stat_sync(
state: &mut OpState,
args: StatArgs,
_: (),
) -> Result<FsStat, AnyError> {
let path = PathBuf::from(&args.path);
let lstat = args.lstat;
state.borrow_mut::<Permissions>().read.check(&path)?;
debug!("op_stat_sync {} {}", path.display(), lstat);
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, stat '{}'", err, path.display()))
};
let metadata = if lstat {
std::fs::symlink_metadata(&path).map_err(err_mapper)?
} else {
std::fs::metadata(&path).map_err(err_mapper)?
};
Ok(get_stat(metadata))
}
async fn op_stat_async(
state: Rc<RefCell<OpState>>,
args: StatArgs,
_: (),
) -> Result<FsStat, AnyError> {
let path = PathBuf::from(&args.path);
let lstat = args.lstat;
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().read.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_stat_async {} {}", path.display(), lstat);
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, stat '{}'", err, path.display()))
};
let metadata = if lstat {
std::fs::symlink_metadata(&path).map_err(err_mapper)?
} else {
std::fs::metadata(&path).map_err(err_mapper)?
};
Ok(get_stat(metadata))
})
.await
.unwrap()
}
fn op_realpath_sync(
state: &mut OpState,
path: String,
_: (),
) -> Result<String, AnyError> {
let path = PathBuf::from(&path);
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&path)?;
if path.is_relative() {
permissions.read.check_blind(&current_dir()?, "CWD")?;
}
debug!("op_realpath_sync {}", path.display());
// corresponds to the realpath on Unix and
// CreateFile and GetFinalPathNameByHandle on Windows
let realpath = canonicalize_path(&path)?;
let realpath_str = into_string(realpath.into_os_string())?;
Ok(realpath_str)
}
async fn op_realpath_async(
state: Rc<RefCell<OpState>>,
path: String,
_: (),
) -> Result<String, AnyError> {
let path = PathBuf::from(&path);
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&path)?;
if path.is_relative() {
permissions.read.check_blind(&current_dir()?, "CWD")?;
}
}
tokio::task::spawn_blocking(move || {
debug!("op_realpath_async {}", path.display());
// corresponds to the realpath on Unix and
// CreateFile and GetFinalPathNameByHandle on Windows
let realpath = canonicalize_path(&path)?;
let realpath_str = into_string(realpath.into_os_string())?;
Ok(realpath_str)
})
.await
.unwrap()
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct DirEntry {
name: String,
is_file: bool,
is_directory: bool,
is_symlink: bool,
}
fn op_read_dir_sync(
state: &mut OpState,
path: String,
_: (),
) -> Result<Vec<DirEntry>, AnyError> {
let path = PathBuf::from(&path);
state.borrow_mut::<Permissions>().read.check(&path)?;
debug!("op_read_dir_sync {}", path.display());
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, readdir '{}'", err, path.display()))
};
let entries: Vec<_> = std::fs::read_dir(&path)
.map_err(err_mapper)?
.filter_map(|entry| {
let entry = entry.unwrap();
// Not all filenames can be encoded as UTF-8. Skip those for now.
if let Ok(name) = into_string(entry.file_name()) {
Some(DirEntry {
name,
is_file: entry
.file_type()
.map_or(false, |file_type| file_type.is_file()),
is_directory: entry
.file_type()
.map_or(false, |file_type| file_type.is_dir()),
is_symlink: entry
.file_type()
.map_or(false, |file_type| file_type.is_symlink()),
})
} else {
None
}
})
.collect();
Ok(entries)
}
async fn op_read_dir_async(
state: Rc<RefCell<OpState>>,
path: String,
_: (),
) -> Result<Vec<DirEntry>, AnyError> {
let path = PathBuf::from(&path);
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().read.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_read_dir_async {}", path.display());
let err_mapper = |err: Error| {
Error::new(err.kind(), format!("{}, readdir '{}'", err, path.display()))
};
let entries: Vec<_> = std::fs::read_dir(&path)
.map_err(err_mapper)?
.filter_map(|entry| {
let entry = entry.unwrap();
// Not all filenames can be encoded as UTF-8. Skip those for now.
if let Ok(name) = into_string(entry.file_name()) {
Some(DirEntry {
name,
is_file: entry
.file_type()
.map_or(false, |file_type| file_type.is_file()),
is_directory: entry
.file_type()
.map_or(false, |file_type| file_type.is_dir()),
is_symlink: entry
.file_type()
.map_or(false, |file_type| file_type.is_symlink()),
})
} else {
None
}
})
.collect();
Ok(entries)
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct RenameArgs {
oldpath: String,
newpath: String,
}
fn op_rename_sync(
state: &mut OpState,
args: RenameArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&oldpath)?;
permissions.write.check(&oldpath)?;
permissions.write.check(&newpath)?;
debug!("op_rename_sync {} {}", oldpath.display(), newpath.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, rename '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
std::fs::rename(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
}
async fn op_rename_async(
state: Rc<RefCell<OpState>>,
args: RenameArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&oldpath)?;
permissions.write.check(&oldpath)?;
permissions.write.check(&newpath)?;
}
tokio::task::spawn_blocking(move || {
debug!(
"op_rename_async {} {}",
oldpath.display(),
newpath.display()
);
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, rename '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
std::fs::rename(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct LinkArgs {
oldpath: String,
newpath: String,
}
fn op_link_sync(
state: &mut OpState,
args: LinkArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&oldpath)?;
permissions.write.check(&oldpath)?;
permissions.read.check(&newpath)?;
permissions.write.check(&newpath)?;
debug!("op_link_sync {} {}", oldpath.display(), newpath.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, link '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
std::fs::hard_link(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
}
async fn op_link_async(
state: Rc<RefCell<OpState>>,
args: LinkArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<Permissions>();
permissions.read.check(&oldpath)?;
permissions.write.check(&oldpath)?;
permissions.read.check(&newpath)?;
permissions.write.check(&newpath)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_link_async {} {}", oldpath.display(), newpath.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, link '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
std::fs::hard_link(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SymlinkArgs {
oldpath: String,
newpath: String,
#[cfg(not(unix))]
options: Option<SymlinkOptions>,
}
#[cfg(not(unix))]
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SymlinkOptions {
_type: String,
}
fn op_symlink_sync(
state: &mut OpState,
args: SymlinkArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
state.borrow_mut::<Permissions>().write.check_all()?;
state.borrow_mut::<Permissions>().read.check_all()?;
debug!(
"op_symlink_sync {} {}",
oldpath.display(),
newpath.display()
);
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, symlink '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
#[cfg(unix)]
{
use std::os::unix::fs::symlink;
symlink(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
}
#[cfg(not(unix))]
{
use std::os::windows::fs::{symlink_dir, symlink_file};
match args.options {
Some(options) => match options._type.as_ref() {
"file" => symlink_file(&oldpath, &newpath).map_err(err_mapper)?,
"dir" => symlink_dir(&oldpath, &newpath).map_err(err_mapper)?,
_ => return Err(type_error("unsupported type")),
},
None => {
let old_meta = std::fs::metadata(&oldpath);
match old_meta {
Ok(metadata) => {
if metadata.is_file() {
symlink_file(&oldpath, &newpath).map_err(err_mapper)?
} else if metadata.is_dir() {
symlink_dir(&oldpath, &newpath).map_err(err_mapper)?
}
}
Err(_) => return Err(type_error("you must pass a `options` argument for non-existent target path in windows".to_string())),
}
}
};
Ok(())
}
}
async fn op_symlink_async(
state: Rc<RefCell<OpState>>,
args: SymlinkArgs,
_: (),
) -> Result<(), AnyError> {
let oldpath = PathBuf::from(&args.oldpath);
let newpath = PathBuf::from(&args.newpath);
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check_all()?;
state.borrow_mut::<Permissions>().read.check_all()?;
}
tokio::task::spawn_blocking(move || {
debug!("op_symlink_async {} {}", oldpath.display(), newpath.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!(
"{}, symlink '{}' -> '{}'",
err,
oldpath.display(),
newpath.display()
),
)
};
#[cfg(unix)]
{
use std::os::unix::fs::symlink;
symlink(&oldpath, &newpath).map_err(err_mapper)?;
Ok(())
}
#[cfg(not(unix))]
{
use std::os::windows::fs::{symlink_dir, symlink_file};
match args.options {
Some(options) => match options._type.as_ref() {
"file" => symlink_file(&oldpath, &newpath).map_err(err_mapper)?,
"dir" => symlink_dir(&oldpath, &newpath).map_err(err_mapper)?,
_ => return Err(type_error("unsupported type")),
},
None => {
let old_meta = std::fs::metadata(&oldpath);
match old_meta {
Ok(metadata) => {
if metadata.is_file() {
symlink_file(&oldpath, &newpath).map_err(err_mapper)?
} else if metadata.is_dir() {
symlink_dir(&oldpath, &newpath).map_err(err_mapper)?
}
}
Err(_) => return Err(type_error("you must pass a `options` argument for non-existent target path in windows".to_string())),
}
}
};
Ok(())
}
})
.await
.unwrap()
}
fn op_read_link_sync(
state: &mut OpState,
path: String,
_: (),
) -> Result<String, AnyError> {
let path = PathBuf::from(&path);
state.borrow_mut::<Permissions>().read.check(&path)?;
debug!("op_read_link_value {}", path.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, readlink '{}'", err, path.display()),
)
};
let target = std::fs::read_link(&path)
.map_err(err_mapper)?
.into_os_string();
let targetstr = into_string(target)?;
Ok(targetstr)
}
async fn op_read_link_async(
state: Rc<RefCell<OpState>>,
path: String,
_: (),
) -> Result<String, AnyError> {
let path = PathBuf::from(&path);
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().read.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_read_link_async {}", path.display());
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, readlink '{}'", err, path.display()),
)
};
let target = std::fs::read_link(&path)
.map_err(err_mapper)?
.into_os_string();
let targetstr = into_string(target)?;
Ok(targetstr)
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct FtruncateArgs {
rid: ResourceId,
len: i32,
}
fn op_ftruncate_sync(
state: &mut OpState,
args: FtruncateArgs,
_: (),
) -> Result<(), AnyError> {
let rid = args.rid;
let len = args.len as u64;
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.set_len(len).map_err(AnyError::from),
Err(_) => Err(type_error("cannot truncate this type of resource")),
})?;
Ok(())
}
async fn op_ftruncate_async(
state: Rc<RefCell<OpState>>,
args: FtruncateArgs,
_: (),
) -> Result<(), AnyError> {
let rid = args.rid;
let len = args.len as u64;
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
(*fs_file).0.as_mut().unwrap().set_len(len).await?;
Ok(())
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct TruncateArgs {
path: String,
len: u64,
}
fn op_truncate_sync(
state: &mut OpState,
args: TruncateArgs,
_: (),
) -> Result<(), AnyError> {
let path = PathBuf::from(&args.path);
let len = args.len;
state.borrow_mut::<Permissions>().write.check(&path)?;
debug!("op_truncate_sync {} {}", path.display(), len);
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, truncate '{}'", err, path.display()),
)
};
let f = std::fs::OpenOptions::new()
.write(true)
.open(&path)
.map_err(err_mapper)?;
f.set_len(len).map_err(err_mapper)?;
Ok(())
}
async fn op_truncate_async(
state: Rc<RefCell<OpState>>,
args: TruncateArgs,
_: (),
) -> Result<(), AnyError> {
let path = PathBuf::from(&args.path);
let len = args.len;
{
let mut state = state.borrow_mut();
state.borrow_mut::<Permissions>().write.check(&path)?;
}
tokio::task::spawn_blocking(move || {
debug!("op_truncate_async {} {}", path.display(), len);
let err_mapper = |err: Error| {
Error::new(
err.kind(),
format!("{}, truncate '{}'", err, path.display()),
)
};
let f = std::fs::OpenOptions::new()
.write(true)
.open(&path)
.map_err(err_mapper)?;
f.set_len(len).map_err(err_mapper)?;
Ok(())
})
.await
.unwrap()
}
fn make_temp(
dir: Option<&Path>,
prefix: Option<&str>,
suffix: Option<&str>,
is_dir: bool,
) -> std::io::Result<PathBuf> {
let prefix_ = prefix.unwrap_or("");
let suffix_ = suffix.unwrap_or("");
let mut buf: PathBuf = match dir {
Some(p) => p.to_path_buf(),
None => temp_dir(),
}
.join("_");
let mut rng = thread_rng();
loop {
let unique = rng.gen::<u32>();
buf.set_file_name(format!("{}{:08x}{}", prefix_, unique, suffix_));
let r = if is_dir {
#[allow(unused_mut)]
let mut builder = std::fs::DirBuilder::new();
#[cfg(unix)]
{
use std::os::unix::fs::DirBuilderExt;
builder.mode(0o700);
}
builder.create(buf.as_path())
} else {
let mut open_options = std::fs::OpenOptions::new();
open_options.write(true).create_new(true);
#[cfg(unix)]
{
use std::os::unix::fs::OpenOptionsExt;
open_options.mode(0o600);
}
open_options.open(buf.as_path())?;
Ok(())
};
match r {
Err(ref e) if e.kind() == std::io::ErrorKind::AlreadyExists => continue,
Ok(_) => return Ok(buf),
Err(e) => return Err(e),
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct MakeTempArgs {
dir: Option<String>,
prefix: Option<String>,
suffix: Option<String>,
}
fn op_make_temp_dir_sync(
state: &mut OpState,
args: MakeTempArgs,
_: (),
) -> Result<String, AnyError> {
let dir = args.dir.map(|s| PathBuf::from(&s));
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
state
.borrow_mut::<Permissions>()
.write
.check(dir.clone().unwrap_or_else(temp_dir).as_path())?;
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_deref(),
prefix.as_deref(),
suffix.as_deref(),
true,
)?;
let path_str = into_string(path.into_os_string())?;
Ok(path_str)
}
async fn op_make_temp_dir_async(
state: Rc<RefCell<OpState>>,
args: MakeTempArgs,
_: (),
) -> Result<String, AnyError> {
let dir = args.dir.map(|s| PathBuf::from(&s));
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
{
let mut state = state.borrow_mut();
state
.borrow_mut::<Permissions>()
.write
.check(dir.clone().unwrap_or_else(temp_dir).as_path())?;
}
tokio::task::spawn_blocking(move || {
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_deref(),
prefix.as_deref(),
suffix.as_deref(),
true,
)?;
let path_str = into_string(path.into_os_string())?;
Ok(path_str)
})
.await
.unwrap()
}
fn op_make_temp_file_sync(
state: &mut OpState,
args: MakeTempArgs,
_: (),
) -> Result<String, AnyError> {
let dir = args.dir.map(|s| PathBuf::from(&s));
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
state
.borrow_mut::<Permissions>()
.write
.check(dir.clone().unwrap_or_else(temp_dir).as_path())?;
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_deref(),
prefix.as_deref(),
suffix.as_deref(),
false,
)?;
let path_str = into_string(path.into_os_string())?;
Ok(path_str)
}
async fn op_make_temp_file_async(
state: Rc<RefCell<OpState>>,
args: MakeTempArgs,
_: (),
) -> Result<String, AnyError> {
let dir = args.dir.map(|s| PathBuf::from(&s));
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
{
let mut state = state.borrow_mut();
state
.borrow_mut::<Permissions>()
.write
.check(dir.clone().unwrap_or_else(temp_dir).as_path())?;
}
tokio::task::spawn_blocking(move || {
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_deref(),
prefix.as_deref(),
suffix.as_deref(),
false,
)?;
let path_str = into_string(path.into_os_string())?;
Ok(path_str)
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct FutimeArgs {
rid: ResourceId,
atime: (i64, u32),
mtime: (i64, u32),
}
fn op_futime_sync(
state: &mut OpState,
args: FutimeArgs,
_: (),
) -> Result<(), AnyError> {
super::check_unstable(state, "Deno.futimeSync");
let rid = args.rid;
let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
filetime::set_file_handle_times(std_file, Some(atime), Some(mtime))
.map_err(AnyError::from)
}
Err(_) => Err(type_error(
"cannot futime on this type of resource".to_string(),
)),
})?;
Ok(())
}
async fn op_futime_async(
state: Rc<RefCell<OpState>>,
args: FutimeArgs,
_: (),
) -> Result<(), AnyError> {
super::check_unstable2(&state, "Deno.futime");
let rid = args.rid;
let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
let resource = state
.borrow_mut()
.resource_table
.get::<StdFileResource>(rid)?;
if resource.fs_file.is_none() {
return Err(bad_resource_id());
}
let mut fs_file = RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap())
.borrow_mut()
.await;
let std_file = (*fs_file)
.0
.as_mut()
.unwrap()
.try_clone()
.await?
.into_std()
.await;
tokio::task::spawn_blocking(move || {
filetime::set_file_handle_times(&std_file, Some(atime), Some(mtime))?;
Ok(())
})
.await
.unwrap()
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct UtimeArgs {
path: String,
atime: (i64, u32),
mtime: (i64, u32),
}
fn op_utime_sync(
state: &mut OpState,
args: UtimeArgs,
_: (),
) -> Result<(), AnyError> {
super::check_unstable(state, "Deno.utime");
let path = PathBuf::from(&args.path);
let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
state.borrow_mut::<Permissions>().write.check(&path)?;
filetime::set_file_times(&path, atime, mtime).map_err(|err| {
Error::new(err.kind(), format!("{}, utime '{}'", err, path.display()))
})?;
Ok(())
}
async fn op_utime_async(
state: Rc<RefCell<OpState>>,
args: UtimeArgs,
_: (),
) -> Result<(), AnyError> {
super::check_unstable(&state.borrow(), "Deno.utime");
let path = PathBuf::from(&args.path);
let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
state
.borrow_mut()
.borrow_mut::<Permissions>()
.write
.check(&path)?;
tokio::task::spawn_blocking(move || {
filetime::set_file_times(&path, atime, mtime).map_err(|err| {
Error::new(err.kind(), format!("{}, utime '{}'", err, path.display()))
})?;
Ok(())
})
.await
.unwrap()
}
fn op_cwd(state: &mut OpState, _: (), _: ()) -> Result<String, AnyError> {
let path = current_dir()?;
state
.borrow_mut::<Permissions>()
.read
.check_blind(&path, "CWD")?;
let path_str = into_string(path.into_os_string())?;
Ok(path_str)
}