2021-01-10 21:59:07 -05:00
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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2020-09-05 20:34:02 -04:00
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2021-01-14 23:32:27 -05:00
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use super::io::StdFileResource;
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2020-09-14 12:48:57 -04:00
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use deno_core::error::bad_resource_id;
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2020-11-30 11:08:03 -05:00
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use deno_core::error::not_supported;
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2020-09-14 12:48:57 -04:00
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use deno_core::error::resource_unavailable;
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use deno_core::error::AnyError;
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2020-09-10 09:57:45 -04:00
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use deno_core::OpState;
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use deno_core::RcRef;
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use deno_core::ResourceId;
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2020-04-23 05:51:07 -04:00
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use deno_core::ZeroCopyBuf;
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2020-09-16 12:43:08 -04:00
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use serde::Deserialize;
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use serde::Serialize;
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2020-12-13 13:45:53 -05:00
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use std::io::Error;
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2020-09-14 12:48:57 -04:00
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2020-02-26 01:01:24 -05:00
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#[cfg(unix)]
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use nix::sys::termios;
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2020-09-14 12:48:57 -04:00
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#[cfg(windows)]
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use deno_core::error::custom_error;
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2020-02-26 01:01:24 -05:00
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#[cfg(windows)]
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use winapi::shared::minwindef::DWORD;
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#[cfg(windows)]
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use winapi::um::wincon;
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#[cfg(windows)]
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const RAW_MODE_MASK: DWORD = wincon::ENABLE_LINE_INPUT
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| wincon::ENABLE_ECHO_INPUT
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| wincon::ENABLE_PROCESSED_INPUT;
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2020-09-10 09:57:45 -04:00
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2020-02-26 01:01:24 -05:00
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#[cfg(windows)]
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fn get_windows_handle(
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f: &std::fs::File,
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) -> Result<std::os::windows::io::RawHandle, AnyError> {
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2020-02-26 01:01:24 -05:00
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use std::os::windows::io::AsRawHandle;
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use winapi::um::handleapi;
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let handle = f.as_raw_handle();
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if handle == handleapi::INVALID_HANDLE_VALUE {
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2020-12-13 13:45:53 -05:00
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return Err(Error::last_os_error().into());
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2020-02-26 01:01:24 -05:00
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} else if handle.is_null() {
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2020-09-14 12:48:57 -04:00
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return Err(custom_error("ReferenceError", "null handle"));
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2020-02-26 01:01:24 -05:00
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}
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Ok(handle)
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}
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2020-09-10 09:57:45 -04:00
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pub fn init(rt: &mut deno_core::JsRuntime) {
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2021-04-12 15:55:05 -04:00
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super::reg_sync(rt, "op_set_raw", op_set_raw);
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super::reg_sync(rt, "op_isatty", op_isatty);
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super::reg_sync(rt, "op_console_size", op_console_size);
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2020-02-26 01:01:24 -05:00
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}
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2020-11-30 11:08:03 -05:00
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#[derive(Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct SetRawOptions {
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cbreak: bool,
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}
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2020-02-26 01:01:24 -05:00
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#[derive(Deserialize)]
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pub struct SetRawArgs {
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rid: ResourceId,
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mode: bool,
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options: SetRawOptions,
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}
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fn op_set_raw(
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state: &mut OpState,
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args: SetRawArgs,
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_zero_copy: Option<ZeroCopyBuf>,
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) -> Result<(), AnyError> {
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super::check_unstable(state, "Deno.setRaw");
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let rid = args.rid;
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let is_raw = args.mode;
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let cbreak = args.options.cbreak;
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// From https://github.com/kkawakam/rustyline/blob/master/src/tty/windows.rs
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// and https://github.com/kkawakam/rustyline/blob/master/src/tty/unix.rs
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// and https://github.com/crossterm-rs/crossterm/blob/e35d4d2c1cc4c919e36d242e014af75f6127ab50/src/terminal/sys/windows.rs
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// Copyright (c) 2015 Katsu Kawakami & Rustyline authors. MIT license.
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// Copyright (c) 2019 Timon. MIT license.
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#[cfg(windows)]
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{
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use std::os::windows::io::AsRawHandle;
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use winapi::shared::minwindef::FALSE;
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use winapi::um::{consoleapi, handleapi};
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2020-12-16 11:14:12 -05:00
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let resource = state
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.resource_table
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.get::<StdFileResource>(rid)
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.ok_or_else(bad_resource_id)?;
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2020-11-30 11:08:03 -05:00
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if cbreak {
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return Err(not_supported());
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}
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if resource.fs_file.is_none() {
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return Err(bad_resource_id());
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}
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let fs_file_resource =
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RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap()).try_borrow_mut();
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let handle_result = if let Some(mut fs_file) = fs_file_resource {
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let tokio_file = fs_file.0.take().unwrap();
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match tokio_file.try_into_std() {
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Ok(std_file) => {
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let raw_handle = std_file.as_raw_handle();
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// Turn the std_file handle back into a tokio file, put it back
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// in the resource table.
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let tokio_file = tokio::fs::File::from_std(std_file);
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fs_file.0 = Some(tokio_file);
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// return the result.
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Ok(raw_handle)
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}
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Err(tokio_file) => {
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// This function will return an error containing the file if
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// some operation is in-flight.
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fs_file.0 = Some(tokio_file);
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Err(resource_unavailable())
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}
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}
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} else {
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Err(resource_unavailable())
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};
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2020-12-16 11:14:12 -05:00
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let handle = handle_result?;
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2020-02-26 01:01:24 -05:00
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if handle == handleapi::INVALID_HANDLE_VALUE {
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return Err(Error::last_os_error().into());
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2020-02-26 01:01:24 -05:00
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} else if handle.is_null() {
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return Err(custom_error("ReferenceError", "null handle"));
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}
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let mut original_mode: DWORD = 0;
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if unsafe { consoleapi::GetConsoleMode(handle, &mut original_mode) }
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== FALSE
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{
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return Err(Error::last_os_error().into());
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}
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let new_mode = if is_raw {
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original_mode & !RAW_MODE_MASK
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} else {
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original_mode | RAW_MODE_MASK
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};
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if unsafe { consoleapi::SetConsoleMode(handle, new_mode) } == FALSE {
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return Err(Error::last_os_error().into());
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}
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2021-04-05 12:40:24 -04:00
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Ok(())
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}
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#[cfg(unix)]
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{
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use std::os::unix::io::AsRawFd;
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2020-12-16 11:14:12 -05:00
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let resource = state
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.resource_table
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.get::<StdFileResource>(rid)
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.ok_or_else(bad_resource_id)?;
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if resource.fs_file.is_none() {
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return Err(not_supported());
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}
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2020-12-16 11:14:12 -05:00
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let maybe_fs_file_resource =
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RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap()).try_borrow_mut();
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if maybe_fs_file_resource.is_none() {
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return Err(resource_unavailable());
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}
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let mut fs_file_resource = maybe_fs_file_resource.unwrap();
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if fs_file_resource.0.is_none() {
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return Err(resource_unavailable());
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}
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2020-02-26 01:01:24 -05:00
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2020-12-16 11:14:12 -05:00
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let raw_fd = fs_file_resource.0.as_ref().unwrap().as_raw_fd();
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let maybe_tty_mode = &mut fs_file_resource.1.as_mut().unwrap().tty.mode;
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if is_raw {
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2020-11-30 11:08:03 -05:00
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if maybe_tty_mode.is_none() {
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// Save original mode.
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let original_mode = termios::tcgetattr(raw_fd)?;
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maybe_tty_mode.replace(original_mode);
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2020-02-26 01:01:24 -05:00
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}
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2020-11-30 11:08:03 -05:00
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let mut raw = maybe_tty_mode.clone().unwrap();
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2020-02-26 01:01:24 -05:00
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raw.input_flags &= !(termios::InputFlags::BRKINT
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| termios::InputFlags::ICRNL
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| termios::InputFlags::INPCK
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| termios::InputFlags::ISTRIP
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| termios::InputFlags::IXON);
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raw.control_flags |= termios::ControlFlags::CS8;
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raw.local_flags &= !(termios::LocalFlags::ECHO
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| termios::LocalFlags::ICANON
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| termios::LocalFlags::IEXTEN);
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if !cbreak {
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raw.local_flags &= !(termios::LocalFlags::ISIG);
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}
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raw.control_chars[termios::SpecialCharacterIndices::VMIN as usize] = 1;
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raw.control_chars[termios::SpecialCharacterIndices::VTIME as usize] = 0;
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termios::tcsetattr(raw_fd, termios::SetArg::TCSADRAIN, &raw)?;
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} else {
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// Try restore saved mode.
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if let Some(mode) = maybe_tty_mode.take() {
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termios::tcsetattr(raw_fd, termios::SetArg::TCSADRAIN, &mode)?;
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}
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}
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2020-12-16 11:14:12 -05:00
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2021-04-05 12:40:24 -04:00
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Ok(())
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2020-02-26 01:01:24 -05:00
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}
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}
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2020-08-28 11:08:24 -04:00
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fn op_isatty(
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state: &mut OpState,
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rid: ResourceId,
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2021-04-02 09:47:57 -04:00
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_zero_copy: Option<ZeroCopyBuf>,
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) -> Result<bool, AnyError> {
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let isatty: bool = StdFileResource::with(state, rid, move |r| match r {
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Ok(std_file) => {
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#[cfg(windows)]
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{
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use winapi::um::consoleapi;
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let handle = get_windows_handle(&std_file)?;
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let mut test_mode: DWORD = 0;
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// If I cannot get mode out of console, it is not a console.
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Ok(unsafe { consoleapi::GetConsoleMode(handle, &mut test_mode) != 0 })
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}
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#[cfg(unix)]
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{
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use std::os::unix::io::AsRawFd;
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let raw_fd = std_file.as_raw_fd();
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Ok(unsafe { libc::isatty(raw_fd as libc::c_int) == 1 })
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2020-09-05 20:34:02 -04:00
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}
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2021-03-18 20:55:31 -04:00
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}
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_ => Ok(false),
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})?;
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Ok(isatty)
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2020-07-10 10:07:12 -04:00
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}
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#[derive(Serialize)]
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struct ConsoleSize {
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columns: u32,
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rows: u32,
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}
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2020-08-28 11:08:24 -04:00
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fn op_console_size(
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state: &mut OpState,
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2021-04-05 12:40:24 -04:00
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rid: ResourceId,
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2021-04-02 09:47:57 -04:00
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_zero_copy: Option<ZeroCopyBuf>,
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2021-03-18 14:42:01 -04:00
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) -> Result<ConsoleSize, AnyError> {
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2020-09-26 14:26:51 -04:00
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super::check_unstable(state, "Deno.consoleSize");
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2020-09-10 09:57:45 -04:00
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2021-03-18 20:55:31 -04:00
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let size = StdFileResource::with(state, rid, move |r| match r {
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2020-08-28 11:08:24 -04:00
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Ok(std_file) => {
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#[cfg(windows)]
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{
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use std::os::windows::io::AsRawHandle;
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let handle = std_file.as_raw_handle();
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unsafe {
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let mut bufinfo: winapi::um::wincon::CONSOLE_SCREEN_BUFFER_INFO =
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std::mem::zeroed();
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if winapi::um::wincon::GetConsoleScreenBufferInfo(
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handle,
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&mut bufinfo,
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) == 0
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{
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2020-12-13 13:45:53 -05:00
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return Err(Error::last_os_error().into());
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2020-07-10 10:07:12 -04:00
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}
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2020-08-28 11:08:24 -04:00
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Ok(ConsoleSize {
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columns: bufinfo.dwSize.X as u32,
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rows: bufinfo.dwSize.Y as u32,
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})
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}
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}
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2020-07-10 10:07:12 -04:00
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2020-08-28 11:08:24 -04:00
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#[cfg(unix)]
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{
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use std::os::unix::io::AsRawFd;
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2020-07-10 10:07:12 -04:00
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2020-08-28 11:08:24 -04:00
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let fd = std_file.as_raw_fd();
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unsafe {
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let mut size: libc::winsize = std::mem::zeroed();
|
|
|
|
if libc::ioctl(fd, libc::TIOCGWINSZ, &mut size as *mut _) != 0 {
|
2020-12-13 13:45:53 -05:00
|
|
|
return Err(Error::last_os_error().into());
|
2020-07-10 10:07:12 -04:00
|
|
|
}
|
2020-08-28 11:08:24 -04:00
|
|
|
|
|
|
|
// TODO (caspervonb) return a tuple instead
|
|
|
|
Ok(ConsoleSize {
|
|
|
|
columns: size.ws_col as u32,
|
|
|
|
rows: size.ws_row as u32,
|
|
|
|
})
|
2020-07-10 10:07:12 -04:00
|
|
|
}
|
|
|
|
}
|
2020-08-28 11:08:24 -04:00
|
|
|
}
|
2020-09-14 12:48:57 -04:00
|
|
|
Err(_) => Err(bad_resource_id()),
|
2020-08-28 11:08:24 -04:00
|
|
|
})?;
|
2020-07-10 10:07:12 -04:00
|
|
|
|
2021-03-18 14:42:01 -04:00
|
|
|
Ok(size)
|
2020-07-10 10:07:12 -04:00
|
|
|
}
|