285 lines
8.9 KiB
Rust
285 lines
8.9 KiB
Rust
extern crate kuska_handshake;
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extern crate kuska_ssb;
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extern crate base64;
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extern crate crossbeam;
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extern crate regex;
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extern crate structopt;
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use std::{fmt::Debug, io::prelude::*};
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use async_std::{
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io::Read,
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net::{TcpStream, UdpSocket},
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};
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use kuska_handshake::async_std::{handshake_client, BoxStream};
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use kuska_ssb::{
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api::{
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dto::{CreateHistoryStreamIn, CreateStreamIn, LatestOut, WhoAmIOut},
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ApiCaller,
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},
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discovery::ssb_net_id,
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feed::{is_privatebox, privatebox_decipher, Feed, Message},
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keystore::{from_patchwork_local, OwnedIdentity},
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rpc::{RecvMsg, RequestNo, RpcReader, RpcWriter},
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};
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use kuska_sodiumoxide::crypto::sign::ed25519;
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use regex::Regex;
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use structopt::StructOpt;
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type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
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#[derive(Debug, StructOpt)]
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#[structopt(name = "example", about = "An example of StructOpt usage.")]
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struct Opt {
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/// Connect to server
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// format is: server:port:<server_id>
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#[structopt(short, long)]
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connect: Option<String>,
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}
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pub fn whoami_res_parse(body: &[u8]) -> Result<WhoAmIOut> {
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Ok(serde_json::from_slice(body)?)
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}
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pub fn message_res_parse(body: &[u8]) -> Result<Message> {
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Ok(Message::from_slice(body)?)
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}
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pub fn feed_res_parse(body: &[u8]) -> Result<Feed> {
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Ok(Feed::from_slice(&body)?)
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}
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pub fn latest_res_parse(body: &[u8]) -> Result<LatestOut> {
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Ok(serde_json::from_slice(body)?)
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}
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#[derive(Debug)]
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struct AppError {
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message: String,
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}
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impl AppError {
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pub fn new(message: String) -> Self {
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AppError { message }
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}
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}
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impl std::error::Error for AppError {
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fn description(&self) -> &str {
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&self.message
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}
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}
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impl std::fmt::Display for AppError {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "{}", self.message)
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}
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}
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async fn get_async<'a, R, T, F>(rpc_reader: &mut RpcReader<R>, req_no: RequestNo, f: F) -> Result<T>
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where
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R: Read + Unpin,
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F: Fn(&[u8]) -> Result<T>,
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T: Debug,
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{
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loop {
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let (id, msg) = rpc_reader.recv().await?;
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if id == req_no {
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match msg {
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RecvMsg::RpcResponse(_type, body) => {
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return f(&body).map_err(|err| err.into());
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}
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RecvMsg::ErrorResponse(message) => {
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return std::result::Result::Err(Box::new(AppError::new(message)));
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}
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_ => {}
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}
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}
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}
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}
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async fn print_source_until_eof<'a, R, T, F>(
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rpc_reader: &mut RpcReader<R>,
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req_no: RequestNo,
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f: F,
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) -> Result<()>
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where
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R: Read + Unpin,
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F: Fn(&[u8]) -> Result<T>,
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T: Debug + serde::Deserialize<'a>,
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{
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loop {
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let (id, msg) = rpc_reader.recv().await?;
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if id == req_no {
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match msg {
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RecvMsg::RpcResponse(_type, body) => {
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let display = f(&body)?;
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println!("{:?}", display);
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}
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RecvMsg::ErrorResponse(message) => {
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return std::result::Result::Err(Box::new(AppError::new(message)));
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}
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RecvMsg::CancelStreamRespose() => break,
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_ => {}
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}
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}
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}
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Ok(())
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}
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#[async_std::main]
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async fn main() -> Result<()> {
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env_logger::init();
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log::set_max_level(log::LevelFilter::max());
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let OwnedIdentity { pk, sk, id } = from_patchwork_local().await.expect("read local secret");
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println!("connecting with identity {}", id);
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let opt = Opt::from_args();
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let (ip, port, server_pk) = if let Some(connect) = opt.connect {
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let connect: Vec<_> = connect.split(":").collect();
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if connect.len() != 3 {
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panic!("connection string should be server:port:id");
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}
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(
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connect[0].to_string(),
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connect[1].to_string(),
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connect[2].to_string(),
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)
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} else {
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println!("Waiting server broadcast...");
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let socket = UdpSocket::bind("0.0.0.0:8008").await?;
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socket.set_broadcast(true)?;
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let mut buf = [0; 128];
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let (amt, _) = socket.recv_from(&mut buf).await.unwrap();
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let msg = String::from_utf8(buf[..amt].to_vec())?;
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println!("got broadcasted {}", msg);
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let broadcast_regexp =
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r"net:([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+):([0-9]+)~shs:([0-9a-zA-Z\+/]+)=";
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let captures = Regex::new(broadcast_regexp)
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.unwrap()
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.captures(&msg)
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.unwrap();
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(
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captures[1].to_string(),
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captures[2].to_string(),
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captures[3].to_string(),
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)
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};
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let server_pk =
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ed25519::PublicKey::from_slice(&base64::decode(&server_pk)?).expect("bad public key");
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let server_ipport = format!("{}:{}", ip, port);
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println!("server_ip_port={}", server_ipport);
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let mut socket = TcpStream::connect(server_ipport).await?;
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let handshake = handshake_client(&mut socket, ssb_net_id(), pk, sk.clone(), server_pk).await?;
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println!("💃 handshake complete");
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let (box_stream_read, box_stream_write) =
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BoxStream::from_handshake(&socket, &socket, handshake, 0x8000).split_read_write();
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let mut rpc_reader = RpcReader::new(box_stream_read);
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let mut client = ApiCaller::new(RpcWriter::new(box_stream_write));
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let req_id = client.whoami_req_send().await?;
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let whoami = match get_async(&mut rpc_reader, req_id, whoami_res_parse).await {
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Ok(res) => {
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println!("😊 server says hello to {}", res.id);
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id
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}
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Err(err) => {
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if !err
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.to_string()
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.contains("method:whoami is not in list of allowed methods")
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{
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println!("Cannot ask for whoami {}", err);
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}
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id
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}
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};
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loop {
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let mut line_buffer = String::new();
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print!("> ");
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let _ = std::io::stdout().flush();
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match std::io::stdin().read_line(&mut line_buffer) {
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Err(_) => break,
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_ => {}
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};
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let args: Vec<String> = line_buffer
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.replace("\n", "")
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.split_whitespace()
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.map(|arg| arg.to_string())
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.collect();
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if args.len() == 0 {
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continue;
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}
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match (args[0].as_str(), args.len()) {
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("exit", 1) => {
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client.rpc().close().await?;
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break;
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}
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("whoami", 1) => {
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let req_id = client.whoami_req_send().await?;
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let whoami = get_async(&mut rpc_reader, req_id, whoami_res_parse)
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.await?
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.id;
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println!("{}", whoami);
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}
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("get", 2) => {
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let msg_id = if args[1] == "any" {
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"%TL34NIX8JpMJN+ubHWx6cRhIwEal8VqHdKVg2t6lFcg=.sha256".to_string()
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} else {
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args[1].clone()
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};
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let req_id = client.get_req_send(&msg_id).await?;
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let msg = get_async(&mut rpc_reader, req_id, message_res_parse).await?;
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println!("{:?}", msg);
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}
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("user", 2) => {
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let user_id = if args[1] == "me" { &whoami } else { &args[1] };
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let args = CreateHistoryStreamIn::new(user_id.clone());
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let req_id = client.create_history_stream_req_send(&args).await?;
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print_source_until_eof(&mut rpc_reader, req_id, feed_res_parse).await?;
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}
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("feed", 1) => {
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let args = CreateStreamIn::default();
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let req_id = client.create_feed_stream_req_send(&args).await?;
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print_source_until_eof(&mut rpc_reader, req_id, feed_res_parse).await?;
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}
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("latest", 1) => {
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let req_id = client.latest_req_send().await?;
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print_source_until_eof(&mut rpc_reader, req_id, latest_res_parse).await?;
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}
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("private", 2) => {
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let user_id = if args[1] == "me" { &whoami } else { &args[1] };
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let show_private = |body: &[u8]| {
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let msg = feed_res_parse(body)?.into_message()?;
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if let serde_json::Value::String(content) = msg.content() {
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if is_privatebox(&content) {
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let ret = privatebox_decipher(&content, &sk)?.unwrap_or("".to_string());
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return Ok(ret);
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}
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}
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return Ok("".to_string());
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};
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let args = CreateHistoryStreamIn::new(user_id.clone());
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let req_id = client.create_history_stream_req_send(&args).await?;
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print_source_until_eof(&mut rpc_reader, req_id, show_private).await?;
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}
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_ => println!("unknown command {}", line_buffer),
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}
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line_buffer.clear();
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}
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Ok(())
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}
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