proper prompt coloring and password masking

connectbox-shell/Cargo.toml

@@ -6,7 +6,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-rustyline = "11"
+rustyline = {version = "11", features = ["derive"]}
 color-eyre = "0.6"
 tokio = { version = "1.0", default-features = false, features = ["macros"] }
 tracing = "0.1"
@@ -15,5 +15,5 @@ clap = { version = "4.2", default-features = false, features = ["suggestions", "
 dirs = "5.0"
 connectbox = { path = "../connectbox" }
 color-print = "0.3"
-ascii_table = { version = "4.0", features = ["auto_table_width"] }
+ascii_table = "4.0"
 once_cell = "1.17"

connectbox-shell/src/cli.rs

@@ -54,8 +54,8 @@ pub(crate) enum PortForwardsCommand {
         /// ID of the port. You can use `pfw show` to find it
         id: u32,
         /// Action to perform with the port. Can be either enable, disable or delete.
-        action: String
-    }
+        action: String,
+    },
 }
 
 pub(crate) fn shell_cmd() -> Command {

connectbox-shell/src/commands/pfw.rs

@@ -3,7 +3,10 @@ use std::vec;
 use ascii_table::{Align::Right, AsciiTable};
 use color_eyre::Result;
 use color_print::cprintln;
-use connectbox::{models::{PortForwardEntry, PortForwardProtocol}, PortForwardAction};
+use connectbox::{
+    models::{PortForwardEntry, PortForwardProtocol},
+    PortForwardAction,
+};
 use once_cell::sync::OnceCell;
 
 use crate::{cli::PortForwardsCommand, AppState};
@@ -101,24 +104,27 @@ pub(crate) async fn run(cmd: PortForwardsCommand, state: &AppState) -> Result<()
                 }
                 _ => {
                     cprintln!("<red!>Invalid action {action:?}");
-                    return Ok(())
+                    return Ok(());
                 }
             };
             let mut modified = false;
-            state.connect_box.edit_port_forwards(|p| {
+            state
+                .connect_box
+                .edit_port_forwards(|p| {
                     if p.id == id {
                         modified = true;
                         action
                     } else {
                         PortForwardAction::Keep
                     }
-            }).await?;
+                })
+                .await?;
             if !modified {
                 cprintln!("<red!>No port with id {id} exists");
             } else {
                 cprintln!("<green!>Done!")
             }
-        },
+        }
     }
     Ok(())
 }

connectbox-shell/src/main.rs

@@ -1,12 +1,16 @@
-use color_print::{cprintln, cstr};
-
+use crate::{cli::ShellCommand, utils::QuotableArgs};
 use clap::{FromArgMatches, Parser};
 use cli::Args;
 use color_eyre::Result;
+use color_print::{cformat, cprintln, cstr};
 use connectbox::ConnectBox;
-use rustyline::{error::ReadlineError, DefaultEditor};
-
-use crate::{cli::ShellCommand, utils::QuotableArgs};
+use rustyline::{
+    error::ReadlineError,
+    highlight::Highlighter,
+    history::{DefaultHistory, FileHistory, MemHistory},
+    Completer, DefaultEditor, Editor, Helper, Hinter, Validator,
+};
+use std::borrow::Cow;
 
 mod cli;
 mod commands;
@@ -16,6 +20,40 @@ pub(crate) struct AppState {
     connect_box: ConnectBox,
 }
 
+#[derive(Completer, Helper, Hinter, Validator)]
+struct GreenPrompt;
+
+impl Highlighter for GreenPrompt {
+    fn highlight_prompt<'b, 's: 'b, 'p: 'b>(
+        &'s self,
+        prompt: &'p str,
+        _default: bool,
+    ) -> std::borrow::Cow<'b, str> {
+        cformat!("<green!>{prompt}").into()
+    }
+}
+
+#[derive(Completer, Helper, Hinter, Validator)]
+struct PasswordPrompt;
+
+impl Highlighter for PasswordPrompt {
+    fn highlight_prompt<'b, 's: 'b, 'p: 'b>(
+        &'s self,
+        prompt: &'p str,
+        _default: bool,
+    ) -> std::borrow::Cow<'b, str> {
+        cformat!("<red!>{prompt}").into()
+    }
+
+    fn highlight<'l>(&self, line: &'l str, _pos: usize) -> Cow<'l, str> {
+        "*".repeat(line.len()).into()
+    }
+
+    fn highlight_char(&self, _line: &str, _pos: usize) -> bool {
+        true
+    }
+}
+
 #[tokio::main(flavor = "current_thread")]
 async fn main() -> Result<()> {
     let args = Args::parse();
@@ -26,10 +64,14 @@ async fn main() -> Result<()> {
         .with_max_level(args.log_level)
         .init();
 
-    let mut rl = DefaultEditor::new()?;
+    let mut rl = Editor::new()?;
+    rl.set_helper(Some(GreenPrompt));
+
     let password = if let Some(password) = args.password {
         password
     } else {
+        let mut rl = Editor::new()?;
+        rl.set_helper(Some(PasswordPrompt));
         rl.readline("Password: ")?
     };
     let history_path = dirs::data_dir()
@@ -43,7 +85,7 @@ async fn main() -> Result<()> {
     let state = AppState { connect_box };
 
     loop {
-        match rl.readline(cstr!("\n<green!> > ")) {
+        match rl.readline("\n >> ") {
             Ok(line) => {
                 if line.chars().all(char::is_whitespace) {
                     continue;

connectbox/src/models.rs

@@ -1,9 +1,9 @@
-use std::fmt::Display;
-use std::net::Ipv4Addr;
-use std::time::Duration;
+use std::{fmt::Display, net::Ipv4Addr, time::Duration};
 
-use serde::de::{self, Error, Unexpected};
-use serde::{Deserialize, Deserializer};
+use serde::{
+    de::{self, Error, Unexpected},
+    Deserialize, Deserializer,
+};
 
 #[derive(Deserialize, Debug)]
 pub struct LanUserTable {

rustfmt.toml

@@ -0,0 +1,2 @@
+unstable_features = true
+imports_granularity = "Crate"