verifiy connections

Cargo.toml

@@ -13,6 +13,7 @@ tokio-native-tls = "0.3.1"
 native-tls = "0.2.11"
 rand = "0.8.5"
 toml = "0.8.10"
+base64 = "0.22.0"
 serde = { version = "1.0.197", features = ["derive"] }
 colored = "2.1.0"
 futures = "0.3.30"

config.toml

@@ -2,5 +2,7 @@ server = "irc.supernets.org"
 port = 6697
 use_ssl = true
 nickname = "g1r"
-channel = "#superbowl"
-
+channel = "#dev"
+sasl_username = "g1r"
+sasl_password = "fuckyou.lol"
+capabilities = ["sasl"]

src/main.rs

@@ -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)]
@@ -14,80 +16,150 @@ struct Config {
     use_ssl: bool,
     nickname: String,
     channel: String,
+    sasl_username: Option<String>,
+    sasl_password: Option<String>,
+    capabilities: Option<Vec<String>>,
 }
 
+mod mods {
+    pub mod sasl;
+}
+use mods::sasl::{start_sasl_auth, handle_sasl_messages};
+
 #[tokio::main(flavor = "multi_thread", worker_threads = 12)]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("Loading Config...");
-    let config_contents = fs::read_to_string("config.toml").expect("Error reading config.toml");
-    let config: Config = toml::from_str(&config_contents).expect("Error parsing config.toml");
+    let config = loaded_config().expect("Error parsing config.toml");
     println!("Config loaded!");
 
-    let addr = format!("{}:{}", config.server, config.port);
-    println!("Connecting to {}...", addr.green());
-    let tcp_stream = TcpStream::connect(&addr).await?;
-    println!("Connected to {}!", addr.green());
-
     if config.use_ssl {
+        let tcp_stream = TcpStream::connect(format!("{}:{}", config.server, config.port)).await?;
+        println!("Connected to {}!", format!("{}:{}", config.server, config.port).green());
+
         println!("Establishing TLS connection...");
-        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?;
+        let mut tls_stream = tls_exec (&config, tcp_stream).await?;
         println!("TLS connection established!");
+        tls_stream.flush().await?;
 
-        let (reader, writer) = split(tls_stream);
-        let (tx, mut rx) = mpsc::channel(1000);
-        // Spawn a task to handle reading
-        let read_task = tokio::spawn(async move {
-            let mut reader = reader;
-            let mut buf = vec![0; 4096];
-            loop {
-                let n = match reader.read(&mut buf).await {
-                    Ok(0) => return, // connection was closed
-                    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 {
-            let mut writer = writer;
-            writer.write_all(format!("NICK {}\r\n", config.nickname).as_bytes()).await.unwrap();
-            writer.write_all(format!("USER {} 0 * :{}\r\n", config.nickname, config.nickname).as_bytes()).await.unwrap();
-            writer.write_all(format!("JOIN {}\r\n", config.channel).as_bytes()).await.unwrap();
-            writer.flush().await.unwrap();
-
-            while let Some(msg) = rx.recv().await {
-                // handle messages better 
-                println!("{} {}", "[%] DEBUG:".bold().green(), msg.purple());
-                if msg.starts_with("PING") {
-                    writer.write_all(format!("PONG {}\r\n", &msg[5..]).as_bytes()).await.unwrap();
-                }
-                // super dirty auto-rejoin on kick REWRITE THIS
-                if let Some(pos) = msg.find(" KICK ") {
-                    let parts: Vec<&str> = msg[pos..].split_whitespace().collect();
-                    if parts.len() > 3 && parts[2] == config.nickname {
-                        writer.write_all(format!("JOIN {}\r\n", config.channel).as_bytes()).await.unwrap();
-                    }
-                }
-            }
-        });
-
-        let _ = tokio::try_join!(read_task, write_task);
+        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: Config = toml::from_str(&config_contents)?;
+    Ok(config)
+}
+
+/// 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?)
+}
+
+
+/// 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 {
+        readmsg(reader, tx).await;
+    });
+
+
+    let write_task = tokio::spawn(async move {
+        writemsg(writer, rx, &config).await; 
+    });
+
+    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(())
+}

src/mods/sasl.rs

@@ -0,0 +1,48 @@
+// mods/sasl.rs
+use base64::Engine;
+pub async fn start_sasl_auth<W: tokio::io::AsyncWriteExt + Unpin>(
+    writer: &mut W,
+    mechanism: &str,
+    nickname: &str,
+    capabilities: Option<Vec<String>>) -> Result<(), Box<dyn std::error::Error>> {
+    writer.write_all(b"CAP LS 302\r\n").await?;
+
+    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?;
+
+    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 {
+        writer.write_all(b"CAP REQ :sasl\r\n").await?;
+    }
+
+    writer.flush().await?;
+    Ok(())
+}
+
+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>> {
+    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);
+        let encoded = base64::engine::general_purpose::STANDARD.encode(auth_string);
+        writer.write_all(format!("AUTHENTICATE {}\r\n", encoded).as_bytes()).await?;
+    } else if message.contains("903 * :SASL authentication successful") {
+        writer.write_all(b"CAP END\r\n").await?;
+    }
+    writer.flush().await?;
+    Ok(())
+}
+