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WIP: hellfire #1

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sad wants to merge 19 commits from hellfire into main
pull from: hellfire
merge into: sad:main
Conversation 0 Commits 19 Files Changed 19 +107 -81
2 changed files with 107 additions and 81 deletions
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Showing only changes of commit f02b9a237b - Show all commits

164
src/main.rs
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@ -4,7 +4,9 @@ use tokio_native_tls::native_tls::TlsConnector as NTlsConnector;
use tokio_native_tls::TlsConnector;
use tokio::sync::mpsc;
use serde::Deserialize;
use tokio_rustls::rustls::Writer;
use std::fs;
use std::future::IntoFuture;
use colored::*;
#[derive(Deserialize)]
@ -16,7 +18,7 @@ struct Config {
channel: String,
sasl_username: Option<String>,
sasl_password: Option<String>,
capabilities: Option<Vec<String>>
capabilities: Option<Vec<String>>,
}
mod mods {
@ -35,99 +37,129 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
println!("Connected to {}!", format!("{}:{}", config.server, config.port).green());
println!("Establishing TLS connection...");
let tls_stream = tls_exec (&config, tcp_stream).await?;
let mut tls_stream = tls_exec (&config, tcp_stream).await?;
println!("TLS connection established!");
tls_stream.flush().await?;
handler(tls_stream, &config).await?;
handler(tls_stream, config).await?;
} else {
println!("Non-SSL connection not implemented.");
}
Ok(())
}
/// Load the config file
fn loaded_config() -> Result<Config, Box<dyn std::error::Error>> {
let config_contents = fs::read_to_string("config.toml")?;
//let config_contents = fs::read_to_string("config.toml").expect("Error reading config.toml");
let config: Config = toml::from_str(&config_contents)?;
//let config: Config = toml::from_str(&config_contents).expect("Error parsing config.toml");
Ok(config)
}
//async fn tls_exec(config: &Config, tcp_stream: TcpStream) -> Result<tokio_native_tls::TlsStream<TcpStream>, Box<dyn std::error::Error>> {
// let mut tls_builder = NTlsConnector::builder();
// tls_builder.danger_accept_invalid_certs(true);
// let tls_connector = TlsConnector::from(tls_builder.build()?);
// let domain = &config.server;
// let tls_stream = tls_connector.connect(domain, tcp_stream).await?;
// println!("TLS connection established!");
// Ok(tls_stream)
//}
/// Establish a TLS connection to the server
async fn tls_exec(config: &Config, tcp_stream: TcpStream) -> Result<tokio_native_tls::TlsStream<TcpStream>, Box<dyn std::error::Error>> {
let tls_builder = NTlsConnector::builder().danger_accept_invalid_certs(true).build()?;
let tls_connector = TlsConnector::from(tls_builder);
Ok(tls_connector.connect(&config.server, tcp_stream).await?)
}
async fn handler(tls_stream: tokio_native_tls::TlsStream<TcpStream>, config: &Config) -> Result<(), Box<dyn std::error::Error>> {
//async fn handler(mut tls_stream: tokio_native_tls::TlsStream<TcpStream>, config: &Config) -> Result<(), Box<dyn std::error::Error>> {
let (mut reader, mut writer) = split(tls_stream);
let (tx, mut rx) = mpsc::channel(1000);
/// Handle the connection to the server
async fn handler(tls_stream: tokio_native_tls::TlsStream<TcpStream>, config: Config) -> Result<(), Box<dyn std::error::Error>> {
let (reader, writer) = split(tls_stream);
let (tx, rx) = mpsc::channel(1000);
let read_task = tokio::spawn(async move {
let mut buf = vec![0; 4096];
while let Ok(n) = reader.read(&mut buf).await {
if n == 0 { break; } // connection killed x.x
let msg = String::from_utf8_lossy(&buf[..n]).to_string();
if tx.send(msg).await.is_err() { break; } // channel killed x.x
}
readmsg(reader, tx).await;
});
//let read_task = tokio::spawn(async move {
// let mut buf = vec![0; 4096];
// loop {
// let n = match reader.read(&mut buf).await {
// Ok(0) => return, // connection killed x.x
// Ok(n) => n,
// Err(e) => {
// eprintln!("Error reading from socket: {:?}", e);
// return;
// },
// };
//
// let msg = String::from_utf8_lossy(&buf[..n]).to_string();
// if tx.send(msg).await.is_err() {
// eprintln!("Error sending message to the channel");
// return;
// }
// }
//});
//
let write_task = tokio::spawn(async move {
while let Some(msg) = rx.recv().await {
// new commands here
if msg.starts_with("PING") {
writer.write_all(format!("PONG {}\r\n", &msg[5..]).as_bytes()).await.unwrap();
}
}
writemsg(writer, rx, &config).await;
});
//let write_task = tokio::spawn(async move {
// while let Some(msg) = rx.recv().await {
// if msg.starts_with("PING") {
// writer.write_all(format!("PONG {}\r\n", &msg[5..]).as_bytes()).await.unwrap();
// }
// if let Some(username) = &config.sasl_username {
// if let Some(password) = &config.sasl_password {
// handle_sasl_messages(&mut writer, &msg, username, password).await.unwrap();
// }
// }
// }
//});
let _ = tokio::try_join!(read_task, write_task);
Ok(())
}
/// Read messages from the server
async fn readmsg(mut reader: tokio::io::ReadHalf<tokio_native_tls::TlsStream<TcpStream>>, tx: tokio::sync::mpsc::Sender<String>) {
let mut buf = vec![0; 4096];
while let Ok (n) = reader.read(&mut buf).await {
if n == 0 { break; }
let msg = String::from_utf8_lossy(&buf[..n]).to_string();
// must pretty this up later
println!{"{}{}{} {}{} {}", "[".green().bold(), ">".yellow().bold(), "]".green().bold(), "DEBUG:".bold().yellow(), ":".bold().green(), msg.purple()};
tx.send(msg).await.unwrap();
}
}
/// Write messages to the server
async fn writemsg(mut writer: tokio::io::WriteHalf<tokio_native_tls::TlsStream<TcpStream>>, mut rx: tokio::sync::mpsc::Receiver<String>, config: &Config) {
// sasl auth
let capabilities = config.capabilities.clone();
let username = config.sasl_username.clone().unwrap();
let password = config.sasl_password.clone().unwrap();
let nickname = config.nickname.clone();
if !password.is_empty() {
println!("Starting SASL auth...");
start_sasl_auth(&mut writer, "PLAIN", &nickname, capabilities).await.unwrap();
writer.flush().await.unwrap();
} else {
nickme(&mut writer, &nickname).await.unwrap();
}
writer.flush().await.unwrap();
// THIS NEEDS TO BE REBUILT TO BE MORE MODULAR AND SECURE
while let Some(msg) = rx.recv().await {
if msg.starts_with("PING") {
let response = msg.replace("PING", "PONG");
println!("{} {} {}","[%] PONG:".bold().green(), nickname.blue(), response.purple());
writer.write_all(response.as_bytes()).await.unwrap();
writer.flush().await.unwrap();
//continue;
}
// handle sasl auth
if !password.is_empty(){
println!("Handling SASL messages...");
handle_sasl_messages(&mut writer, &msg, &username, &password, &nickname).await.unwrap();
//continue;
writer.flush().await.unwrap();
}
// new commands here
if msg.contains("001") {
println!("Setting mode");
writer.write_all(format!("MODE {} +B\r\n", nickname).as_bytes()).await.unwrap();
writer.flush().await.unwrap();
}
if msg.contains("433") {
println!("Nickname already in use, appending _ to nickname");
let new_nick = format!("{}_", nickname);
nickme(&mut writer, &new_nick).await.unwrap();
writer.flush().await.unwrap();
}
if msg.contains("376") {
println!("Joining channel");
writer.write_all(format!("JOIN {}\r\n", config.channel).as_bytes()).await.unwrap();
writer.flush().await.unwrap();
}
}
}
async fn nickme<W: tokio::io::AsyncWriteExt + Unpin>(writer: &mut W, nickname: &str) -> Result<(), Box<dyn std::error::Error>> {
writer.write_all(format!("NICK {}\r\n", nickname).as_bytes()).await?;
writer.flush().await?;
writer.write_all(format!("USER {} 0 * :{}\r\n", nickname, nickname).as_bytes()).await?;
writer.flush().await?;
Ok(())
}

24
src/mods/sasl.rs
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@ -1,29 +1,23 @@
// mods/sasl.rs
use base64::Engine;
use tokio::io::AsyncWriteExt;
/// Sends the initial commands to negotiate capabilities and start SASL authentication.
pub async fn start_sasl_auth<W: tokio::io::AsyncWriteExt + Unpin>(
//pub async fn start_sasl_auth(...) -> Result<(), Box<dyn std::error::Error>> {
writer: &mut W,
mechanism: &str,
nickname: &str,
capabilities: &[String], // Add a parameter for capabilities
) -> Result<(), Box<dyn std::error::Error>> {
// Request a list of capabilities from the server
capabilities: Option<Vec<String>>) -> Result<(), Box<dyn std::error::Error>> {
writer.write_all(b"CAP LS 302\r\n").await?;
// Send NICK and USER commands
let nick_cmd = format!("NICK {}\r\n", nickname);
writer.write_all(nick_cmd.as_bytes()).await?;
let user_cmd = format!("USER {} 0 * :{}\r\n", nickname, nickname);
writer.write_all(user_cmd.as_bytes()).await?;
// Request specific capabilities, including 'sasl' for SASL authentication
if !capabilities.is_empty() {
let cap_req_cmd = format!("CAP REQ :{}\r\n", capabilities.join(" "));
writer.write_all(cap_req_cmd.as_bytes()).await?;
if let Some(caps) = capabilities {
if !caps.is_empty() {
let cap_req_cmd = format!("CAP REQ :{}\r\n", caps.join(" "));
writer.write_all(cap_req_cmd.as_bytes()).await?;
}
} else {
// If no specific capabilities are requested, directly request 'sasl'
writer.write_all(b"CAP REQ :sasl\r\n").await?;
}
@ -31,15 +25,15 @@ pub async fn start_sasl_auth<W: tokio::io::AsyncWriteExt + Unpin>(
Ok(())
}
/// Continues the SASL authentication process based on the server's responses.
//pub async fn handle_sasl_messages(...) -> Result<(), Box<dyn std::error::Error>> {
pub async fn handle_sasl_messages<W: tokio::io::AsyncWriteExt + Unpin>(
writer: &mut W,
message: &str,
username: &str,
password: &str,
nickname: &str,
) -> Result<(), Box<dyn std::error::Error>> {
if message.contains("CAP * ACK :sasl") {
let nick = format!("CAP {} ACK :sasl", nickname.to_string());
if message.contains(&nick) {
writer.write_all(b"AUTHENTICATE PLAIN\r\n").await?;
} else if message.starts_with("AUTHENTICATE +") {
let auth_string = format!("\0{}\0{}", username, password);