mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 07:14:47 -05:00
250 lines
8 KiB
Rust
250 lines
8 KiB
Rust
use super::dispatch_json::JsonOp;
|
|
use super::io::std_file_resource;
|
|
use super::io::{StreamResource, StreamResourceHolder};
|
|
use crate::op_error::OpError;
|
|
use crate::state::State;
|
|
use deno_core::CoreIsolate;
|
|
use deno_core::ZeroCopyBuf;
|
|
#[cfg(unix)]
|
|
use nix::sys::termios;
|
|
use serde_derive::Deserialize;
|
|
use serde_json::Value;
|
|
|
|
#[cfg(windows)]
|
|
use winapi::shared::minwindef::DWORD;
|
|
#[cfg(windows)]
|
|
use winapi::um::wincon;
|
|
#[cfg(windows)]
|
|
const RAW_MODE_MASK: DWORD = wincon::ENABLE_LINE_INPUT
|
|
| wincon::ENABLE_ECHO_INPUT
|
|
| wincon::ENABLE_PROCESSED_INPUT;
|
|
#[cfg(windows)]
|
|
fn get_windows_handle(
|
|
f: &std::fs::File,
|
|
) -> Result<std::os::windows::io::RawHandle, OpError> {
|
|
use std::os::windows::io::AsRawHandle;
|
|
use winapi::um::handleapi;
|
|
|
|
let handle = f.as_raw_handle();
|
|
if handle == handleapi::INVALID_HANDLE_VALUE {
|
|
return Err(OpError::from(std::io::Error::last_os_error()));
|
|
} else if handle.is_null() {
|
|
return Err(OpError::other("null handle".to_owned()));
|
|
}
|
|
Ok(handle)
|
|
}
|
|
|
|
pub fn init(i: &mut CoreIsolate, s: &State) {
|
|
i.register_op("op_set_raw", s.stateful_json_op2(op_set_raw));
|
|
i.register_op("op_isatty", s.stateful_json_op2(op_isatty));
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct SetRawArgs {
|
|
rid: u32,
|
|
mode: bool,
|
|
}
|
|
|
|
pub fn op_set_raw(
|
|
isolate: &mut CoreIsolate,
|
|
_state: &State,
|
|
args: Value,
|
|
_zero_copy: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, OpError> {
|
|
let args: SetRawArgs = serde_json::from_value(args)?;
|
|
let rid = args.rid;
|
|
let is_raw = args.mode;
|
|
|
|
// From https://github.com/kkawakam/rustyline/blob/master/src/tty/windows.rs
|
|
// and https://github.com/kkawakam/rustyline/blob/master/src/tty/unix.rs
|
|
// and https://github.com/crossterm-rs/crossterm/blob/e35d4d2c1cc4c919e36d242e014af75f6127ab50/src/terminal/sys/windows.rs
|
|
// Copyright (c) 2015 Katsu Kawakami & Rustyline authors. MIT license.
|
|
// Copyright (c) 2019 Timon. MIT license.
|
|
#[cfg(windows)]
|
|
{
|
|
use std::os::windows::io::AsRawHandle;
|
|
use winapi::shared::minwindef::FALSE;
|
|
use winapi::um::{consoleapi, handleapi};
|
|
|
|
let mut resource_table = isolate.resource_table.borrow_mut();
|
|
let resource_holder = resource_table.get_mut::<StreamResourceHolder>(rid);
|
|
if resource_holder.is_none() {
|
|
return Err(OpError::bad_resource_id());
|
|
}
|
|
let resource_holder = resource_holder.unwrap();
|
|
|
|
// For now, only stdin.
|
|
let handle = match &mut resource_holder.resource {
|
|
StreamResource::Stdin(_, _) => std::io::stdin().as_raw_handle(),
|
|
StreamResource::FsFile(ref mut option_file_metadata) => {
|
|
if let Some((tokio_file, metadata)) = option_file_metadata.take() {
|
|
match tokio_file.try_into_std() {
|
|
Ok(std_file) => {
|
|
let raw_handle = std_file.as_raw_handle();
|
|
// Turn the std_file handle back into a tokio file, put it back
|
|
// in the resource table.
|
|
let tokio_file = tokio::fs::File::from_std(std_file);
|
|
resource_holder.resource =
|
|
StreamResource::FsFile(Some((tokio_file, metadata)));
|
|
// return the result.
|
|
raw_handle
|
|
}
|
|
Err(tokio_file) => {
|
|
// This function will return an error containing the file if
|
|
// some operation is in-flight.
|
|
resource_holder.resource =
|
|
StreamResource::FsFile(Some((tokio_file, metadata)));
|
|
return Err(OpError::resource_unavailable());
|
|
}
|
|
}
|
|
} else {
|
|
return Err(OpError::resource_unavailable());
|
|
}
|
|
}
|
|
_ => {
|
|
return Err(OpError::bad_resource_id());
|
|
}
|
|
};
|
|
|
|
if handle == handleapi::INVALID_HANDLE_VALUE {
|
|
return Err(OpError::from(std::io::Error::last_os_error()));
|
|
} else if handle.is_null() {
|
|
return Err(OpError::other("null handle".to_owned()));
|
|
}
|
|
let mut original_mode: DWORD = 0;
|
|
if unsafe { consoleapi::GetConsoleMode(handle, &mut original_mode) }
|
|
== FALSE
|
|
{
|
|
return Err(OpError::from(std::io::Error::last_os_error()));
|
|
}
|
|
let new_mode = if is_raw {
|
|
original_mode & !RAW_MODE_MASK
|
|
} else {
|
|
original_mode | RAW_MODE_MASK
|
|
};
|
|
if unsafe { consoleapi::SetConsoleMode(handle, new_mode) } == FALSE {
|
|
return Err(OpError::from(std::io::Error::last_os_error()));
|
|
}
|
|
|
|
Ok(JsonOp::Sync(json!({})))
|
|
}
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::io::AsRawFd;
|
|
|
|
let mut resource_table = isolate.resource_table.borrow_mut();
|
|
let resource_holder = resource_table.get_mut::<StreamResourceHolder>(rid);
|
|
if resource_holder.is_none() {
|
|
return Err(OpError::bad_resource_id());
|
|
}
|
|
|
|
if is_raw {
|
|
let (raw_fd, maybe_tty_mode) =
|
|
match &mut resource_holder.unwrap().resource {
|
|
StreamResource::Stdin(_, ref mut metadata) => {
|
|
(std::io::stdin().as_raw_fd(), &mut metadata.mode)
|
|
}
|
|
StreamResource::FsFile(Some((f, ref mut metadata))) => {
|
|
(f.as_raw_fd(), &mut metadata.tty.mode)
|
|
}
|
|
StreamResource::FsFile(None) => {
|
|
return Err(OpError::resource_unavailable())
|
|
}
|
|
_ => {
|
|
return Err(OpError::other("Not supported".to_owned()));
|
|
}
|
|
};
|
|
|
|
if maybe_tty_mode.is_some() {
|
|
// Already raw. Skip.
|
|
return Ok(JsonOp::Sync(json!({})));
|
|
}
|
|
|
|
let original_mode = termios::tcgetattr(raw_fd)?;
|
|
let mut raw = original_mode.clone();
|
|
// Save original mode.
|
|
maybe_tty_mode.replace(original_mode);
|
|
|
|
raw.input_flags &= !(termios::InputFlags::BRKINT
|
|
| termios::InputFlags::ICRNL
|
|
| termios::InputFlags::INPCK
|
|
| termios::InputFlags::ISTRIP
|
|
| termios::InputFlags::IXON);
|
|
|
|
raw.control_flags |= termios::ControlFlags::CS8;
|
|
|
|
raw.local_flags &= !(termios::LocalFlags::ECHO
|
|
| termios::LocalFlags::ICANON
|
|
| termios::LocalFlags::IEXTEN
|
|
| termios::LocalFlags::ISIG);
|
|
raw.control_chars[termios::SpecialCharacterIndices::VMIN as usize] = 1;
|
|
raw.control_chars[termios::SpecialCharacterIndices::VTIME as usize] = 0;
|
|
termios::tcsetattr(raw_fd, termios::SetArg::TCSADRAIN, &raw)?;
|
|
Ok(JsonOp::Sync(json!({})))
|
|
} else {
|
|
// Try restore saved mode.
|
|
let (raw_fd, maybe_tty_mode) =
|
|
match &mut resource_holder.unwrap().resource {
|
|
StreamResource::Stdin(_, ref mut metadata) => {
|
|
(std::io::stdin().as_raw_fd(), &mut metadata.mode)
|
|
}
|
|
StreamResource::FsFile(Some((f, ref mut metadata))) => {
|
|
(f.as_raw_fd(), &mut metadata.tty.mode)
|
|
}
|
|
StreamResource::FsFile(None) => {
|
|
return Err(OpError::resource_unavailable());
|
|
}
|
|
_ => {
|
|
return Err(OpError::bad_resource_id());
|
|
}
|
|
};
|
|
|
|
if let Some(mode) = maybe_tty_mode.take() {
|
|
termios::tcsetattr(raw_fd, termios::SetArg::TCSADRAIN, &mode)?;
|
|
}
|
|
|
|
Ok(JsonOp::Sync(json!({})))
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct IsattyArgs {
|
|
rid: u32,
|
|
}
|
|
|
|
pub fn op_isatty(
|
|
isolate: &mut CoreIsolate,
|
|
_state: &State,
|
|
args: Value,
|
|
_zero_copy: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, OpError> {
|
|
let args: IsattyArgs = serde_json::from_value(args)?;
|
|
let rid = args.rid;
|
|
|
|
let mut resource_table = isolate.resource_table.borrow_mut();
|
|
let isatty: bool =
|
|
std_file_resource(&mut resource_table, rid as u32, move |r| match r {
|
|
Ok(std_file) => {
|
|
#[cfg(windows)]
|
|
{
|
|
use winapi::um::consoleapi;
|
|
|
|
let handle = get_windows_handle(&std_file)?;
|
|
let mut test_mode: DWORD = 0;
|
|
// If I cannot get mode out of console, it is not a console.
|
|
Ok(unsafe { consoleapi::GetConsoleMode(handle, &mut test_mode) != 0 })
|
|
}
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::io::AsRawFd;
|
|
let raw_fd = std_file.as_raw_fd();
|
|
Ok(unsafe { libc::isatty(raw_fd as libc::c_int) == 1 })
|
|
}
|
|
}
|
|
Err(StreamResource::FsFile(_)) => unreachable!(),
|
|
Err(StreamResource::Stdin(_, _)) => Ok(atty::is(atty::Stream::Stdin)),
|
|
_ => Ok(false),
|
|
})?;
|
|
Ok(JsonOp::Sync(json!(isatty)))
|
|
}
|