diff options
Diffstat (limited to 'winpty')
| -rw-r--r-- | winpty/Cargo.lock | 577 | ||||
| -rw-r--r-- | winpty/Cargo.toml | 16 | ||||
| -rw-r--r-- | winpty/build.rs | 12 | ||||
| -rw-r--r-- | winpty/src/lib.rs | 476 |
4 files changed, 1081 insertions, 0 deletions
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(git+https://github.com/zacps/winpty?branch=rust)" = "<none>" diff --git a/winpty/Cargo.toml b/winpty/Cargo.toml new file mode 100644 index 00000000..b19a8e6b --- /dev/null +++ b/winpty/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "winpty" +version = "0.1.0" +authors = ["Zac Pullar-Strecker <zacmps@gmail.com>"] +license = "MIT" +description = "Safe rust bindings for winpty" + +[dependencies] +# TODO: Replace with official repo +winpty-sys = { git = "https://github.com/zacps/winpty", branch = "rust" } +bitflags = "1.0" +widestring = "0.2.2" + +[dev-dependencies] +named_pipe = "0.3" +winapi = { version = "0.3", features = ["winnt", "processthreadsapi"] } diff --git a/winpty/build.rs b/winpty/build.rs new file mode 100644 index 00000000..90d81803 --- /dev/null +++ b/winpty/build.rs @@ -0,0 +1,12 @@ +use std::fs::copy; +use std::path::Path; + +fn main() { + // The working directory for `cargo test` is in the deps folder, not the debug/release root + if cfg!(test) && Path::new("target").exists() { + #[cfg(debug_assertions)] + copy("../assets/windows/x86_64/winpty-agent.exe", "target/debug/deps/winpty-agent.exe").unwrap(); + #[cfg(not(debug_assertions))] + copy("../assets/windows/x86_64/winpty-agent.exe", "target/release/deps/winpty-agent.exe").unwrap(); + } +} diff --git a/winpty/src/lib.rs b/winpty/src/lib.rs new file mode 100644 index 00000000..3effb939 --- /dev/null +++ b/winpty/src/lib.rs @@ -0,0 +1,476 @@ +#![cfg_attr(feature = "cargo-clippy", deny(clippy, if_not_else, enum_glob_use, wrong_pub_self_convention))] + +#[macro_use] +extern crate bitflags; +extern crate widestring; +extern crate winpty_sys; + +use std::error::Error; +use std::fmt; +use std::path::PathBuf; +use std::result::Result; +use std::os::windows::io::RawHandle; +use std::ptr::{null, null_mut}; +use fmt::{Display, Formatter}; + +use winpty_sys::*; + +use widestring::WideCString; + +pub enum ErrorCodes { + Success, + OutOfMemory, + SpawnCreateProcessFailed, + LostConnection, + AgentExeMissing, + Unspecified, + AgentDied, + AgentTimeout, + AgentCreationFailed, +} +pub enum MouseMode { + None, + Auto, + Force, +} +bitflags!( + pub struct SpawnFlags: u64 { + const AUTO_SHUTDOWN = 0x1; + const EXIT_AFTER_SHUTDOWN = 0x2; + } +); +bitflags!( + pub struct ConfigFlags: u64 { + const CONERR = 0x1; + const PLAIN_OUTPUT = 0x2; + const COLOR_ESCAPES = 0x4; + } +); + +#[derive(Debug)] +pub struct Err<'a> { + ptr: &'a mut winpty_error_t, + code: u32, + message: String, +} + +// Check to see whether winpty gave us an error +fn check_err<'a>(e: *mut winpty_error_t) -> Option<Err<'a>> { + let err = unsafe { + let raw = winpty_error_msg(e); + Err { + ptr: &mut *e, + code: winpty_error_code(e), + message: String::from_utf16_lossy(std::slice::from_raw_parts(raw, wcslen(raw))), + } + }; + if err.code == 0 { + None + } else { + Some(err) + } +} + +impl<'a> Drop for Err<'a> { + fn drop(&mut self) { + unsafe { + winpty_error_free(self.ptr); + } + } +} +impl<'a> Display for Err<'a> { + fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> { + write!(f, "Code: {}, Message: {}", self.code, self.message) + } +} +impl<'a> Error for Err<'a> { + fn description(&self) -> &str { + &self.message + } +} + +#[derive(Debug)] +/// Winpty agent config +pub struct Config<'a>(&'a mut winpty_config_t); + +impl<'a, 'b> Config<'a> { + pub fn new(flags: ConfigFlags) -> Result<Self, Err<'b>> { + let mut err = null_mut() as *mut winpty_error_t; + let config = unsafe { winpty_config_new(flags.bits(), &mut err) }; + + if let Some(err) = check_err(err) { + Result::Err(err) + } else { + unsafe { Ok(Config(&mut *config)) } + } + } + + /// Set the initial size of the console window + pub fn set_initial_size(&mut self, cols: i32, rows: i32) { + unsafe { + winpty_config_set_initial_size(self.0, cols, rows); + } + } + + /// Set the mouse mode + pub fn set_mouse_mode(&mut self, mode: &MouseMode) { + let m = match mode { + MouseMode::None => 0, + MouseMode::Auto => 1, + MouseMode::Force => 2, + }; + unsafe { + winpty_config_set_mouse_mode(self.0, m); + } + } + + /// Amount of time to wait for the agent to startup and to wait for any given + /// agent RPC request. Must be greater than 0. Can be INFINITE. + // Might be a better way to represent this while still retaining infinite capability? + // Enum? + pub fn set_agent_timeout(&mut self, timeout: u32) { + unsafe { + winpty_config_set_agent_timeout(self.0, timeout); + } + } +} + +impl<'a> Drop for Config<'a> { + fn drop(&mut self) { + unsafe { + winpty_config_free(self.0); + } + } +} + +#[derive(Debug)] +/// A struct representing the winpty agent process +pub struct Winpty<'a>(&'a mut winpty_t); + +impl<'a, 'b> Winpty<'a> { + /// Starts the agent. This process will connect to the agent + /// over a control pipe, and the agent will open data pipes + /// (e.g. CONIN and CONOUT). + pub fn open(cfg: &Config) -> Result<Self, Err<'b>> { + let mut err = null_mut() as *mut winpty_error_t; + unsafe { + let winpty = winpty_open(cfg.0, &mut err); + let err = check_err(err); + if let Some(err) = err { + Result::Err(err) + } else { + Ok(Winpty(&mut *winpty)) + } + } + } + + /// Returns the handle to the winpty agent process + pub fn raw_handle(&mut self) -> RawHandle { + unsafe { winpty_agent_process(self.0) } + } + + /// Returns the name of the input pipe. + /// Pipe is half-duplex. + pub fn conin_name(&mut self) -> PathBuf { + unsafe { + let raw = winpty_conin_name(self.0); + PathBuf::from(&String::from_utf16_lossy(std::slice::from_raw_parts( + raw, + wcslen(raw), + ))) + } + } + + /// Returns the name of the output pipe. + /// Pipe is half-duplex. + pub fn conout_name(&mut self) -> PathBuf { + unsafe { + let raw = winpty_conout_name(self.0); + PathBuf::from(&String::from_utf16_lossy(std::slice::from_raw_parts( + raw, + wcslen(raw), + ))) + } + } + + /// Returns the name of the error pipe. + /// The name will only be valid if ConfigFlags::CONERR was specified. + /// Pipe is half-duplex. + pub fn conerr_name(&mut self) -> PathBuf { + unsafe { + let raw = winpty_conerr_name(self.0); + PathBuf::from(&String::from_utf16_lossy(std::slice::from_raw_parts( + raw, + wcslen(raw), + ))) + } + } + + /// Change the size of the Windows console window. + /// + /// cols & rows MUST be greater than 0 + pub fn set_size(&mut self, cols: usize, rows: usize) -> Result<(), Err> { + assert!(cols > 0 && rows > 0); + let mut err = null_mut() as *mut winpty_error_t; + + unsafe { + winpty_set_size(self.0, cols as i32, rows as i32, &mut err); + } + + if let Some(err) = check_err(err) { + Result::Err(err) + } else { + Ok(()) + } + } + + /// Get the list of processses running in the winpty agent. Returns <= count processes + /// + /// `count` must be greater than 0. Larger values cause a larger allocation. + // TODO: This should return Vec<Handle> instead of Vec<i32> + pub fn console_process_list(&mut self, count: usize) -> Result<Vec<i32>, Err> { + assert!(count > 0); + + let mut err = null_mut() as *mut winpty_error_t; + let mut process_list = Vec::with_capacity(count); + + unsafe { + let len = winpty_get_console_process_list(self.0, process_list.as_mut_ptr(), count as i32, &mut err) as usize; + process_list.set_len(len); + } + + if let Some(err) = check_err(err) { + Result::Err(err) + } else { + Ok(process_list) + } + } + + /// Spawns the new process. + /// + /// spawn can only be called once per Winpty object. If it is called + /// before the output data pipe(s) is/are connected, then collected output is + /// buffered until the pipes are connected, rather than being discarded. + /// (https://blogs.msdn.microsoft.com/oldnewthing/20110107-00/?p=11803) + // TODO: Support getting the process and thread handle of the spawned process (Not the agent) + // TODO: Support returning the error from CreateProcess + pub fn spawn( + &mut self, + cfg: &SpawnConfig, + ) -> Result<(), Err> { + let mut err = null_mut() as *mut winpty_error_t; + + unsafe { + let ok = winpty_spawn( + self.0, + cfg.0 as *const winpty_spawn_config_s, + null_mut(), // Process handle + null_mut(), // Thread handle + null_mut(), // Create process error + &mut err, + ); + if ok == 0 { return Ok(());} + } + + if let Some(err) = check_err(err) { + Result::Err(err) + } else { + Ok(()) + } + } +} + +// winpty_t is thread-safe +unsafe impl<'a> Sync for Winpty<'a> {} +unsafe impl<'a> Send for Winpty<'a> {} + +impl<'a> Drop for Winpty<'a> { + fn drop(&mut self) { + unsafe { + winpty_free(self.0); + } + } +} + +#[derive(Debug)] +/// Information about a process for winpty to spawn +pub struct SpawnConfig<'a>(&'a mut winpty_spawn_config_t); + +impl<'a, 'b> SpawnConfig<'a> { + /// Creates a new spawnconfig + pub fn new( + spawnflags: SpawnFlags, + appname: Option<&str>, + cmdline: Option<&str>, + cwd: Option<&str>, + end: Option<&str>, + ) -> Result<Self, Err<'b>> { + let mut err = null_mut() as *mut winpty_error_t; + let (appname, cmdline, cwd, end) = ( + appname.map_or(null(), |s| WideCString::from_str(s).unwrap().into_raw()), + cmdline.map_or(null(), |s| WideCString::from_str(s).unwrap().into_raw()), + cwd.map_or(null(), |s| WideCString::from_str(s).unwrap().into_raw()), + end.map_or(null(), |s| WideCString::from_str(s).unwrap().into_raw()), + ); + + let spawn_config = unsafe { + winpty_spawn_config_new(spawnflags.bits(), appname, cmdline, cwd, end, &mut err) + }; + + // Required to free the strings + unsafe { + if !appname.is_null() { + WideCString::from_raw(appname as *mut u16); + } + if !cmdline.is_null() { + WideCString::from_raw(cmdline as *mut u16); + } + if !cwd.is_null() { + WideCString::from_raw(cwd as *mut u16); + } + if !end.is_null() { + WideCString::from_raw(end as *mut u16); + } + } + + if let Some(err) = check_err(err) { + Result::Err(err) + } else { + unsafe { Ok(SpawnConfig(&mut *spawn_config)) } + } + } +} +impl<'a> Drop for SpawnConfig<'a> { + fn drop(&mut self) { + unsafe { + winpty_spawn_config_free(self.0); + } + } +} + +#[cfg(test)] +mod tests { + extern crate named_pipe; + extern crate winapi; + + use self::named_pipe::PipeClient; + use self::winapi::um::processthreadsapi::OpenProcess; + use self::winapi::um::winnt::READ_CONTROL; + + use std::ptr::null_mut; + + use {Config, ConfigFlags, SpawnConfig, SpawnFlags, Winpty}; + + #[test] + // Test that we can start a process in winpty + fn spawn_process() { + let mut winpty = Winpty::open( + &Config::new(ConfigFlags::empty()).expect("failed to create config") + ).expect("failed to create winpty instance"); + + winpty.spawn( + &SpawnConfig::new( + SpawnFlags::empty(), + None, + Some("cmd"), + None, + None + ).expect("failed to create spawn config") + ).unwrap(); + } + + #[test] + // Test that pipes connected before winpty is spawned can be connected to + fn valid_pipe_connect_before() { + let mut winpty = Winpty::open( + &Config::new(ConfigFlags::empty()).expect("failed to create config") + ).expect("failed to create winpty instance"); + + // Check we can connect to both pipes + PipeClient::connect_ms(winpty.conout_name(), 1000).expect("failed to connect to conout pipe"); + PipeClient::connect_ms(winpty.conin_name(), 1000).expect("failed to connect to conin pipe"); + + winpty.spawn( + &SpawnConfig::new( + SpawnFlags::empty(), + None, + Some("cmd"), + None, + None + ).expect("failed to create spawn config") + ).unwrap(); + } + + #[test] + // Test that pipes connected after winpty is spawned can be connected to + fn valid_pipe_connect_after() { + let mut winpty = Winpty::open( + &Config::new(ConfigFlags::empty()).expect("failed to create config") + ).expect("failed to create winpty instance"); + + winpty.spawn( + &SpawnConfig::new( + SpawnFlags::empty(), + None, + Some("cmd"), + None, + None + ).expect("failed to create spawn config") + ).unwrap(); + + // Check we can connect to both pipes + PipeClient::connect_ms(winpty.conout_name(), 1000).expect("failed to connect to conout pipe"); + PipeClient::connect_ms(winpty.conin_name(), 1000).expect("failed to connect to conin pipe"); + } + + #[test] + fn resize() { + let mut winpty = Winpty::open( + &Config::new(ConfigFlags::empty()).expect("failed to create config") + ).expect("failed to create winpty instance"); + + winpty.spawn( + &SpawnConfig::new( + SpawnFlags::empty(), + None, + Some("cmd"), + None, + None + ).expect("failed to create spawn config") + ).unwrap(); + + winpty.set_size(1, 1).unwrap(); + } + + #[test] + // Test that each id returned by cosole_process_list points to an actual process + fn console_process_list_valid() { + let mut winpty = Winpty::open( + &Config::new(ConfigFlags::empty()).expect("failed to create config") + ).expect("failed to create winpty instance"); + + winpty.spawn( + &SpawnConfig::new( + SpawnFlags::empty(), + None, + Some("cmd"), + None, + None + ).expect("failed to create spawn config") + ).unwrap(); + + let processes = winpty.console_process_list(1000).expect("failed to get console process list"); + + // Check that each id is valid + processes.iter().for_each(|id| { + let handle = unsafe { + OpenProcess( + READ_CONTROL, // permissions + false as i32, // inheret + *id as u32 + ) + }; + assert!(handle != null_mut()); + }); + } +} |