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|
use anyhow::Context as _;
use std::io::Read as _;
pub fn login() -> anyhow::Result<()> {
simple_action(rbw::protocol::Action::Login)
}
pub fn unlock() -> anyhow::Result<()> {
simple_action(rbw::protocol::Action::Unlock)
}
pub fn sync() -> anyhow::Result<()> {
simple_action(rbw::protocol::Action::Sync)
}
pub fn lock() -> anyhow::Result<()> {
simple_action(rbw::protocol::Action::Lock)
}
pub fn quit() -> anyhow::Result<()> {
match crate::sock::Sock::connect() {
Ok(mut sock) => {
let pidfile = rbw::dirs::pid_file();
let mut pid = String::new();
std::fs::File::open(pidfile)?.read_to_string(&mut pid)?;
let pid = nix::unistd::Pid::from_raw(pid.parse()?);
sock.send(&rbw::protocol::Request {
tty: ttyname(),
action: rbw::protocol::Action::Quit,
})?;
wait_for_exit(pid)?;
Ok(())
}
Err(e) => match e.kind() {
// if the socket doesn't exist, or the socket exists but nothing
// is listening on it, the agent must already be not running
std::io::ErrorKind::ConnectionRefused
| std::io::ErrorKind::NotFound => Ok(()),
_ => Err(e.into()),
},
}
}
pub fn decrypt(
cipherstring: &str,
org_id: Option<&str>,
) -> anyhow::Result<String> {
let mut sock = crate::sock::Sock::connect()
.context("failed to connect to rbw-agent")?;
sock.send(&rbw::protocol::Request {
tty: ttyname(),
action: rbw::protocol::Action::Decrypt {
cipherstring: cipherstring.to_string(),
org_id: org_id.map(std::string::ToString::to_string),
},
})?;
let res = sock.recv()?;
match res {
rbw::protocol::Response::Decrypt { plaintext } => Ok(plaintext),
rbw::protocol::Response::Error { error } => {
Err(anyhow::anyhow!("failed to decrypt: {}", error))
}
_ => Err(anyhow::anyhow!("unexpected message: {:?}", res)),
}
}
pub fn encrypt(
plaintext: &str,
org_id: Option<&str>,
) -> anyhow::Result<String> {
let mut sock = crate::sock::Sock::connect()
.context("failed to connect to rbw-agent")?;
sock.send(&rbw::protocol::Request {
tty: ttyname(),
action: rbw::protocol::Action::Encrypt {
plaintext: plaintext.to_string(),
org_id: org_id.map(std::string::ToString::to_string),
},
})?;
let res = sock.recv()?;
match res {
rbw::protocol::Response::Encrypt { cipherstring } => Ok(cipherstring),
rbw::protocol::Response::Error { error } => {
Err(anyhow::anyhow!("failed to encrypt: {}", error))
}
_ => Err(anyhow::anyhow!("unexpected message: {:?}", res)),
}
}
pub fn version() -> anyhow::Result<u32> {
let mut sock = crate::sock::Sock::connect()
.context("failed to connect to rbw-agent")?;
sock.send(&rbw::protocol::Request {
tty: ttyname(),
action: rbw::protocol::Action::Version,
})?;
let res = sock.recv()?;
match res {
rbw::protocol::Response::Version { version } => Ok(version),
rbw::protocol::Response::Error { error } => {
Err(anyhow::anyhow!("failed to get version: {}", error))
}
_ => Err(anyhow::anyhow!("unexpected message: {:?}", res)),
}
}
fn simple_action(action: rbw::protocol::Action) -> anyhow::Result<()> {
let mut sock = crate::sock::Sock::connect()
.context("failed to connect to rbw-agent")?;
sock.send(&rbw::protocol::Request {
tty: ttyname(),
action,
})?;
let res = sock.recv()?;
match res {
rbw::protocol::Response::Ack => Ok(()),
rbw::protocol::Response::Error { error } => {
Err(anyhow::anyhow!("{}", error))
}
_ => Err(anyhow::anyhow!("unexpected message: {:?}", res)),
}
}
// TODO: it'd be great if ttyname_r was exposed via nix, so i didn't have to
// manually deal with unsafe here
fn ttyname() -> Option<String> {
const PATH_MAX: usize = libc::PATH_MAX as usize;
let mut buf = [0_u8; PATH_MAX];
let c_buf = buf.as_mut_ptr() as *mut libc::c_char;
let ret = unsafe { libc::ttyname_r(0, c_buf, PATH_MAX) };
if ret != 0 {
return None;
}
let nul = memchr::memchr(b'\0', &buf)?;
if nul == 0 {
return None;
}
let s = std::str::from_utf8(&buf[..nul]).ok()?;
Some(s.to_string())
}
fn wait_for_exit(pid: nix::unistd::Pid) -> anyhow::Result<()> {
loop {
if nix::sys::signal::kill(pid, None).is_err() {
break;
}
std::thread::sleep(std::time::Duration::from_millis(10));
}
Ok(())
}
|
