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pub mod chat;
use futures::channel::mpsc;
use serde::{Deserialize, Serialize};
use std::error::Error;
use std::{fmt, io};
pub mod keybase_cmd {
use super::{ApiError, KBError};
use futures::{channel::mpsc, stream::Stream};
use serde::{de::DeserializeOwned, Deserialize, Serialize};
use serde_json;
use std::io::{self, BufRead, BufReader, Write};
use std::process::{Command, Stdio};
use std::thread;
thread_local! {
pub static KEYBASE: String = which_keybase();
}
#[derive(Deserialize, Serialize)]
pub struct APIResult<T> {
pub result: T,
pub error: Option<KBError>,
}
pub fn which_keybase() -> String {
let path = String::from_utf8(
Command::new("which")
.arg("keybase")
.output()
.expect("which is not installed")
.stdout,
)
.expect("Output not in UTF-8");
String::from(path.trim())
}
pub fn call_chat_api<T>(input: &[u8]) -> Result<T, ApiError>
where
T: DeserializeOwned,
{
let mut child = KEYBASE.with(|kb| {
Command::new(kb)
.arg("chat")
.arg("api")
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.expect("Couldn't run `keybase`")
});
if let Some(stdin) = child.stdin.as_mut() {
stdin.write_all(input)?;
let output = child.wait_with_output()?;
if !output.status.success() {
return Err(io::Error::new(
io::ErrorKind::InvalidInput,
"Keybase did not return successful exit code",
)
.into());
}
let output = String::from_utf8(output.stdout)?;
let res: APIResult<T> = serde_json::from_str(&output)?;
if let Some(error) = res.error {
Err(ApiError::KBErr(error))
} else {
Ok(res.result)
}
} else {
Err(io::Error::new(io::ErrorKind::BrokenPipe, "Couldn't get stdin").into())
}
}
pub fn listen_chat_api<T>() -> Result<
(
impl Stream<Item = T>,
thread::JoinHandle<Result<(), ApiError>>,
),
ApiError,
>
where
T: DeserializeOwned + Send + 'static,
{
let mut child = KEYBASE.with(|kb| {
Command::new(kb)
.arg("chat")
.arg("api-listen")
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.expect("Couldn't run `keybase`")
});
if let Some(stdout) = child.stdout.take() {
let (mut sender, receiver) = mpsc::channel::<T>(128);
let handler: thread::JoinHandle<Result<(), ApiError>> = thread::spawn(move || {
let mut reader = BufReader::new(stdout);
loop {
let mut line = String::new();
let _bytes_written = reader.read_line(&mut line)?;
println!("got notif: {:?}", line);
let res: T = serde_json::from_str(&line)?;
sender.start_send(res)?;
}
});
Ok((receiver, handler))
} else {
Err(io::Error::new(io::ErrorKind::BrokenPipe, "Couldn't get stdout").into())
}
}
}
#[derive(Debug)]
pub enum ApiError {
Parsing(serde_json::error::Error),
IOErr(io::Error),
KBErr(KBError),
UTF8Err(std::string::FromUtf8Error),
ChannelErr(mpsc::SendError),
}
#[derive(Deserialize, Serialize, Debug)]
pub struct KBError {
pub code: i32,
pub message: String,
}
impl fmt::Display for ApiError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{:?}", self)
}
}
impl Error for ApiError {}
impl From<mpsc::SendError> for ApiError {
fn from(error: mpsc::SendError) -> Self {
ApiError::ChannelErr(error)
}
}
impl From<std::string::FromUtf8Error> for ApiError {
fn from(error: std::string::FromUtf8Error) -> Self {
ApiError::UTF8Err(error)
}
}
impl From<serde_json::error::Error> for ApiError {
fn from(error: serde_json::error::Error) -> Self {
ApiError::Parsing(error)
}
}
impl From<std::io::Error> for ApiError {
fn from(error: std::io::Error) -> Self {
ApiError::IOErr(error)
}
}
#[cfg(test)]
mod tests {
use super::chat::*;
use super::keybase_cmd::*;
use super::*;
#[test]
fn can_find_keybase() {
println!("Keybase is at: {}", which_keybase());
assert!(!which_keybase().is_empty());
}
#[test]
fn ls_inbox() {
list().unwrap();
}
}