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use futures::prelude::*;
mod cipher;
mod crypto;
mod decrypt;
mod encrypt;
mod handshake;
mod utils;
pub use cipher::Params as CipherParams;
pub use decrypt::{Decrypt, DecryptError};
pub use encrypt::Encrypt;
pub use handshake::{Client, Error, Server};
pub fn box_stream<Stream: AsyncRead + AsyncWrite + Unpin>(
stream: Stream,
params: BoxStreamParams,
) -> (
Encrypt<futures::io::WriteHalf<Stream>>,
Decrypt<futures::io::ReadHalf<Stream>>,
) {
let (raw_reader, raw_writer) = stream.split();
(
Encrypt::new(raw_writer, params.send),
Decrypt::new(raw_reader, params.receive),
)
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct BoxStreamParams {
pub receive: crate::cipher::Params,
pub send: crate::cipher::Params,
}
#[cfg(test)]
mod test {
use super::*;
use proptest::prelude::*;
#[test_strategy::proptest]
fn crypt_stream(messages: Vec<Vec<u8>>) {
let _ = sodiumoxide::init();
async_std::task::block_on(async move {
let params = crate::cipher::Params::arbitrary();
let (writer, reader) = async_std::os::unix::net::UnixStream::pair().unwrap();
let reader = Decrypt::new(reader, params.clone());
let mut writer = Encrypt::new(writer, params.clone());
let data = messages.concat();
let write_handle = async_std::task::spawn(async move {
for data in messages {
writer.send(data).await.unwrap();
}
writer.close().await.unwrap();
});
let data_read = reader.try_concat().await.unwrap();
prop_assert_eq!(data_read, data);
write_handle.await;
Ok(())
})?;
}
#[test_strategy::proptest]
fn early_termination(
#[strategy(proptest::collection::vec(any::<u8>(), 1..30))] data: Vec<u8>,
cutoff: proptest::sample::Index,
) {
let _ = sodiumoxide::init();
async_std::task::block_on(async move {
let params = crate::cipher::Params::arbitrary();
let (raw_writer, raw_reader) = async_std::os::unix::net::UnixStream::pair().unwrap();
let cutoff = cutoff.index(data.len());
let raw_reader = raw_reader.take(cutoff as u64);
let reader = Decrypt::new(raw_reader, params.clone());
let mut writer = Encrypt::new(raw_writer, params);
async_std::task::spawn(async move {
let _ = writer.send(data).await;
});
let items = reader.collect::<Vec<_>>().await;
let err = items.last().unwrap().as_ref().unwrap_err();
match err {
DecryptError::Io(io_error) => {
prop_assert_eq!(io_error.kind(), std::io::ErrorKind::UnexpectedEof)
}
_ => prop_assert!(false),
}
Ok(())
})?;
}
}