chunked reading

src/chat.rs

@@ -34,6 +34,11 @@ impl ChatStorage {
         self.packet_size.store(packet_size, Ordering::SeqCst);
         *self.messages.write().unwrap() = messages;
     }
+
+    pub fn append(&self, messages: Vec<String>, packet_size: usize) {
+        self.packet_size.store(packet_size, Ordering::SeqCst);
+        self.messages.write().unwrap().append(&mut messages.clone());
+    }
 }
 
 
@@ -67,7 +72,13 @@ Press enter to close")?;
         let message = format!("Checking ping... {:X}", random::<u16>());
         send_message(&mut connect(&ctx.host, ctx.enable_ssl)?, &message)?;
         loop {
-            let data = read_messages(&mut connect(&ctx.host, ctx.enable_ssl)?, ctx.max_messages, before, !ctx.enable_ssl).ok().flatten();
+            let data = read_messages(
+                &mut connect(&ctx.host, ctx.enable_ssl)?, 
+                ctx.max_messages, 
+                before, 
+                !ctx.enable_ssl,
+                ctx.enable_chunked
+            ).ok().flatten();
 
             if let Some((data, size)) = data {
                 if let Some(last) = data.iter().rev().find(|o| o.contains(&message)) {
@@ -95,6 +106,7 @@ pub fn print_console(ctx: Arc<Context>, messages: Vec<String>, input: &str) -> R
     let mut messages = messages
         .into_iter()
         .flat_map(|o| string_chunks(&o, width as usize - 1))
+        .map(|o| (o.0.white().blink().to_string(), o.1))
         .collect::<Vec<(String, usize)>>();
 
     let messages_size = if messages.len() >= height {
@@ -478,16 +490,28 @@ fn poll_events(ctx: Arc<Context>) -> Result<(), Box<dyn Error>> {
 }
 
 pub fn recv_tick(ctx: Arc<Context>) -> Result<(), Box<dyn Error>> {
-    match read_messages(&mut connect(&ctx.host, ctx.enable_ssl)?, ctx.max_messages, ctx.messages.packet_size(), !ctx.enable_ssl) {
+    match read_messages(
+        &mut connect(&ctx.host, ctx.enable_ssl)?, 
+        ctx.max_messages, 
+        ctx.messages.packet_size(), 
+        !ctx.enable_ssl,
+        ctx.enable_chunked
+    ) {
         Ok(Some((messages, size))) => {
             let messages: Vec<String> = if ctx.disable_formatting {
                 messages 
             } else {
                 messages.into_iter().flat_map(|o| format_message(ctx.clone(), o)).collect()
             };
+
+            if ctx.enable_chunked {
+                ctx.messages.append(messages.clone(), size);
+                print_console(ctx.clone(), ctx.messages.messages(), &ctx.input.read().unwrap())?;
+            } else {
                 ctx.messages.update(messages.clone(), size);
                 print_console(ctx.clone(), messages, &ctx.input.read().unwrap())?;
             }
+        }
         Err(e) => {
             println!("{:?}", e);
         }

src/config.rs

@@ -33,6 +33,8 @@ pub struct Config {
     pub enable_auth: bool,
     #[serde(default)]
     pub enable_ssl: bool,
+    #[serde(default)]
+    pub enable_chunked: bool,
 }
 
 fn default_max_messages() -> usize { 200 }
@@ -75,6 +77,7 @@ pub fn configure(path: PathBuf) -> Config {
     let disable_ip_hiding = ask_bool("Enable your IP viewing?", false);
     let enable_auth = ask_bool("Enable auth-mode?", false);
     let enable_ssl = ask_bool("Enable SSL?", false);
+    let enable_chunked = ask_bool("Enable chunked reading?", false);
 
     let config = Config {
         host,
@@ -85,7 +88,8 @@ pub fn configure(path: PathBuf) -> Config {
         enable_ip_viewing,
         disable_ip_hiding,
         enable_auth,
-        enable_ssl
+        enable_ssl,
+        enable_chunked
     };
 
     let config_text = serde_yml::to_string(&config).expect("Config save error");
@@ -188,6 +192,10 @@ pub struct Args {
     /// Enable SSL
     #[arg(short='S', long)]
     pub enable_ssl: bool,
+
+    /// Enable chunked reading
+    #[arg(short='u', long)]
+    pub enable_chunked: bool,
 }
 
 pub struct Context {
@@ -205,6 +213,7 @@ pub struct Context {
     pub scroll: Arc<AtomicUsize>,
     pub enable_auth: bool,
     pub enable_ssl: bool,
+    pub enable_chunked: bool,
 }
 
 impl Context {
@@ -223,7 +232,8 @@ impl Context {
             enable_ip_viewing: args.enable_users_ip_viewing || config.enable_ip_viewing,
             scroll: Arc::new(AtomicUsize::new(0)),
             enable_auth: args.enable_auth || config.enable_auth,
-            enable_ssl: args.enable_ssl || config.enable_ssl
+            enable_ssl: args.enable_ssl || config.enable_ssl,
+            enable_chunked: args.enable_chunked || config.enable_chunked,
         }
     }
 }

src/main.rs

@@ -52,7 +52,8 @@ fn main() {
                 &mut stream, 
                 ctx.max_messages, 
                 0,
-                !ctx.enable_ssl
+                !ctx.enable_ssl,
+                false
             )
             .ok().flatten()
             .expect("Error reading messages").0.join("\n")

src/proto.rs

@@ -66,11 +66,17 @@ fn skip_null(stream: &mut impl Read) -> Result<Vec<u8>, Box<dyn Error>> {
     }
 }
 
-pub fn read_messages(stream: &mut (impl Read + Write), max_messages: usize, last_size: usize, skip_null_: bool) -> Result<Option<(Vec<String>, usize)>, Box<dyn Error>> {
+pub fn read_messages(
+    stream: &mut (impl Read + Write), 
+    max_messages: usize, 
+    last_size: usize, 
+    start_null: bool, 
+    chunked: bool
+) -> Result<Option<(Vec<String>, usize)>, Box<dyn Error>> {
     stream.write_all(&[0x00])?;
 
     let packet_size = {
-        let data = if skip_null_ {
+        let data = if start_null {
             let mut data = skip_null(stream)?;
             
             loop {
@@ -99,20 +105,25 @@ pub fn read_messages(stream: &mut (impl Read + Write), max_messages: usize, last
         return Ok(None);
     }
 
+    let to_read = if !chunked || last_size == 0 {
         stream.write_all(&[0x01])?;
+        packet_size
+    } else {
+        stream.write_all(format!("\x02{}", last_size).as_bytes())?;
+        packet_size - last_size
+    };
 
     let packet_data = {
-        let data = if skip_null_ {
+        let data = if start_null {
             let mut data = skip_null(stream)?;
-            while data.len() < packet_size {
-                let mut buf = vec![0; packet_size - data.len()];
-                let read_bytes = stream.read(&mut buf)?;
-                buf.truncate(read_bytes);
+            while data.len() < to_read {
+                let mut buf = vec![0; to_read - data.len()];
+                stream.read_exact(&mut buf)?;
                 data.append(&mut buf);
             }
             data
         } else {
-            let mut data = vec![0; packet_size];
+            let mut data = vec![0; to_read];
             stream.read_exact(&mut data)?;
             data
         };