fix clippy

Cargo.lock

@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 4
+version = 3
 
 [[package]]
 name = "addr2line"
@@ -2005,10 +2005,8 @@ dependencies = [
 name = "lan-mouse-cli"
 version = "0.2.0"
 dependencies = [
- "clap",
  "futures",
  "lan-mouse-ipc",
- "thiserror 2.0.0",
  "tokio",
 ]
 
@@ -2023,7 +2021,6 @@ dependencies = [
  "lan-mouse-ipc",
  "libadwaita",
  "log",
- "thiserror 2.0.0",
 ]
 
 [[package]]

README.md

@@ -144,11 +144,10 @@ rust toolchain.
 Additionally, available backends and frontends can be configured manually via
 [cargo features](https://doc.rust-lang.org/cargo/reference/features.html).
 
-E.g. if only support for sway is needed, the following command produces
-an executable with support for only the `layer-shell` capture backend
-and `wlroots` emulation backend:
+E.g. if only wayland support is needed, the following command produces
+an executable with just support for wayland:
 ```sh
-cargo build --no-default-features --features layer_shell_capture,wlroots_emulation
+cargo build --no-default-features --features wayland
 ```
 For a detailed list of available features, checkout the [Cargo.toml](./Cargo.toml)
 </details>
@@ -268,17 +267,19 @@ If the device still can not be entered, make sure you have UDP port `4242` (or t
 <details>
     <summary>Command Line Interface</summary>
 
-The cli interface can be accessed by passing `cli` as a commandline argument.
-Use
-```sh
-lan-mouse cli help
-```
- to list the available commands and
-```sh
-lan-mouse cli <cmd> help
-```
-for information on how to use a specific command.
+The cli interface can be enabled using `--frontend cli` as commandline arguments.
+Type `help` to list the available commands.
 
+E.g.:
+```sh
+$ cargo run --release -- --frontend cli
+(...)
+> connect <host> left|right|top|bottom
+(...)
+> list
+(...)
+> activate 0
+```
 </details>
 
 <details>
@@ -286,10 +287,10 @@ for information on how to use a specific command.
 
 Lan Mouse can be launched in daemon mode to keep it running in the background (e.g. for use in a systemd-service).
 
-To do so, use the `daemon` subcommand:
+To do so, add `--daemon` to the commandline args:
 
 ```sh
-lan-mouse daemon
+lan-mouse --daemon
 ```
 
 In order to start lan-mouse with a graphical session automatically,
@@ -324,6 +325,9 @@ release_bind = [ "KeyA", "KeyS", "KeyD", "KeyF" ]
 
 # optional port (defaults to 4242)
 port = 4242
+# # optional frontend -> defaults to gtk if available
+# # possible values are "cli" and "gtk"
+# frontend = "gtk"
 
 # list of authorized tls certificate fingerprints that
 # are accepted for incoming traffic
@@ -331,9 +335,7 @@ port = 4242
 "bc:05:ab:7a:a4:de:88:8c:2f:92:ac:bc:b8:49:b8:24:0d:44:b3:e6:a4:ef:d7:0b:6c:69:6d:77:53:0b:14:80" = "iridium"
 
 # define a client on the right side with host name "iridium"
-[[clients]]
-# position (left | right | top | bottom)
-position = "right"
+[right]
 # hostname
 hostname = "iridium"
 # activate this client immediately when lan-mouse is started
@@ -342,8 +344,7 @@ activate_on_startup = true
 ips = ["192.168.178.156"]
 
 # define a client on the left side with IP address 192.168.178.189
-[[clients]]
-position = "left"
+[left]
 # The hostname is optional: When no hostname is specified,
 # at least one ip address needs to be specified.
 hostname = "thorium"

config.toml

@@ -1,10 +1,14 @@
 # example configuration
 
-# configure release bind
-release_bind = [ "KeyA", "KeyS", "KeyD", "KeyF" ]
+# capture_backend = "LayerShell"
+
+# release bind
+release_bind = ["KeyA", "KeyS", "KeyD", "KeyF"]
 
 # optional port (defaults to 4242)
 port = 4242
+# optional frontend -> defaults to gtk if available
+# frontend = "gtk"
 
 # list of authorized tls certificate fingerprints that
 # are accepted for incoming traffic
@@ -12,19 +16,14 @@ port = 4242
 "bc:05:ab:7a:a4:de:88:8c:2f:92:ac:bc:b8:49:b8:24:0d:44:b3:e6:a4:ef:d7:0b:6c:69:6d:77:53:0b:14:80" = "iridium"
 
 # define a client on the right side with host name "iridium"
-[[clients]]
-# position (left | right | top | bottom)
-position = "right"
+[right]
 # hostname
 hostname = "iridium"
-# activate this client immediately when lan-mouse is started
-activate_on_startup = true
 # optional list of (known) ip addresses
 ips = ["192.168.178.156"]
 
 # define a client on the left side with IP address 192.168.178.189
-[[clients]]
-position = "left"
+[left]
 # The hostname is optional: When no hostname is specified,
 # at least one ip address needs to be specified.
 hostname = "thorium"

input-capture/src/layer_shell.rs

@@ -813,7 +813,7 @@ impl Dispatch<WlPointer, ()> for State {
                     })),
                 ));
             }
-            wl_pointer::Event::Frame => {
+            wl_pointer::Event::Frame {} => {
                 // TODO properly handle frame events
                 // we simply insert a frame event on the client side
                 // after each event for now

input-capture/src/macos.rs

@@ -390,9 +390,9 @@ fn create_event_tap<'a>(
 
             if let Some(pos) = pos {
                 res_events.iter().for_each(|e| {
-                    // error must be ignored, since the event channel
-                    // may already be closed when the InputCapture instance is dropped.
-                    let _ = event_tx.blocking_send((pos, *e));
+                    event_tx
+                        .blocking_send((pos, *e))
+                        .expect("Failed to send event");
                 });
                 // Returning None should stop the event from being processed
                 // but core fundation still returns the event

input-capture/src/windows/event_thread.rs

@@ -22,9 +22,9 @@ use windows::Win32::UI::WindowsAndMessaging::{
     RegisterClassW, SetWindowsHookExW, TranslateMessage, EDD_GET_DEVICE_INTERFACE_NAME, HHOOK,
     HMENU, HOOKPROC, KBDLLHOOKSTRUCT, LLKHF_EXTENDED, MSG, MSLLHOOKSTRUCT, WH_KEYBOARD_LL,
     WH_MOUSE_LL, WINDOW_STYLE, WM_DISPLAYCHANGE, WM_KEYDOWN, WM_KEYUP, WM_LBUTTONDOWN,
-    WM_LBUTTONUP, WM_MBUTTONDOWN, WM_MBUTTONUP, WM_MOUSEHWHEEL, WM_MOUSEMOVE, WM_MOUSEWHEEL,
-    WM_RBUTTONDOWN, WM_RBUTTONUP, WM_SYSKEYDOWN, WM_SYSKEYUP, WM_USER, WM_XBUTTONDOWN,
-    WM_XBUTTONUP, WNDCLASSW, WNDPROC,
+    WM_LBUTTONUP, WM_MBUTTONDOWN, WM_MBUTTONUP, WM_MOUSEMOVE, WM_MOUSEWHEEL, WM_RBUTTONDOWN,
+    WM_RBUTTONUP, WM_SYSKEYDOWN, WM_SYSKEYUP, WM_USER, WM_XBUTTONDOWN, WM_XBUTTONUP, WNDCLASSW,
+    WNDPROC,
 };
 
 use input_event::{
@@ -537,10 +537,6 @@ fn to_mouse_event(wparam: WPARAM, lparam: LPARAM) -> Option<PointerEvent> {
                 state: if p == WM_XBUTTONDOWN as usize { 1 } else { 0 },
             })
         }
-        WPARAM(p) if p == WM_MOUSEHWHEEL as usize => Some(PointerEvent::AxisDiscrete120 {
-            axis: 1, // Horizontal
-            value: mouse_low_level.mouseData as i32 >> 16,
-        }),
         w => {
             log::warn!("unknown mouse event: {w:?}");
             None

input-emulation/src/x11.rs

@@ -23,7 +23,7 @@ impl X11Emulation {
     pub(crate) fn new() -> Result<Self, X11EmulationCreationError> {
         let display = unsafe {
             match xlib::XOpenDisplay(ptr::null()) {
-                d if std::ptr::eq(d, ptr::null_mut::<xlib::Display>()) => {
+                d if d == ptr::null::<xlib::Display>() as *mut xlib::Display => {
                     Err(X11EmulationCreationError::OpenDisplay)
                 }
                 display => Ok(display),

input-emulation/src/xdg_desktop_portal.rs

@@ -143,6 +143,7 @@ impl Emulation for DesktopPortalEmulation<'_> {
 
 impl AsyncDrop for DesktopPortalEmulation<'_> {
     #[doc = r" Perform the async cleanup."]
+    #[must_use]
     #[allow(clippy::type_complexity, clippy::type_repetition_in_bounds)]
     fn async_drop<'async_trait>(
         self,

lan-mouse-cli/Cargo.toml

@@ -9,8 +9,6 @@ repository = "https://github.com/feschber/lan-mouse"
 [dependencies]
 futures = "0.3.30"
 lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.2.0" }
-clap = { version = "4.4.11", features = ["derive"] }
-thiserror = "2.0.0"
 tokio = { version = "1.32.0", features = [
     "io-util",
     "io-std",

lan-mouse-cli/src/command.rs

@@ -0,0 +1,153 @@
+use std::{
+    fmt::Display,
+    str::{FromStr, SplitWhitespace},
+};
+
+use lan_mouse_ipc::{ClientHandle, Position};
+
+pub(super) enum CommandType {
+    NoCommand,
+    Help,
+    Connect,
+    Disconnect,
+    Activate,
+    Deactivate,
+    List,
+    SetHost,
+    SetPort,
+}
+
+#[derive(Debug)]
+pub(super) struct InvalidCommand {
+    cmd: String,
+}
+
+impl Display for InvalidCommand {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "invalid command: \"{}\"", self.cmd)
+    }
+}
+
+impl FromStr for CommandType {
+    type Err = InvalidCommand;
+
+    fn from_str(s: &str) -> std::prelude::v1::Result<Self, Self::Err> {
+        match s {
+            "connect" => Ok(Self::Connect),
+            "disconnect" => Ok(Self::Disconnect),
+            "activate" => Ok(Self::Activate),
+            "deactivate" => Ok(Self::Deactivate),
+            "list" => Ok(Self::List),
+            "set-host" => Ok(Self::SetHost),
+            "set-port" => Ok(Self::SetPort),
+            "help" => Ok(Self::Help),
+            _ => Err(InvalidCommand { cmd: s.to_string() }),
+        }
+    }
+}
+
+#[derive(Debug)]
+pub(super) enum Command {
+    None,
+    Help,
+    Connect(Position, String, Option<u16>),
+    Disconnect(ClientHandle),
+    Activate(ClientHandle),
+    Deactivate(ClientHandle),
+    List,
+    SetHost(ClientHandle, String),
+    SetPort(ClientHandle, Option<u16>),
+}
+
+impl CommandType {
+    pub(super) fn usage(&self) -> &'static str {
+        match self {
+            CommandType::Help => "help",
+            CommandType::NoCommand => "",
+            CommandType::Connect => "connect left|right|top|bottom <host> [<port>]",
+            CommandType::Disconnect => "disconnect <id>",
+            CommandType::Activate => "activate <id>",
+            CommandType::Deactivate => "deactivate <id>",
+            CommandType::List => "list",
+            CommandType::SetHost => "set-host <id> <host>",
+            CommandType::SetPort => "set-port <id> <host>",
+        }
+    }
+}
+
+pub(super) enum CommandParseError {
+    Usage(CommandType),
+    Invalid(InvalidCommand),
+}
+
+impl Display for CommandParseError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Usage(cmd) => write!(f, "usage: {}", cmd.usage()),
+            Self::Invalid(cmd) => write!(f, "{}", cmd),
+        }
+    }
+}
+
+impl FromStr for Command {
+    type Err = CommandParseError;
+
+    fn from_str(cmd: &str) -> Result<Self, Self::Err> {
+        let mut args = cmd.split_whitespace();
+        let cmd_type: CommandType = match args.next() {
+            Some(c) => c.parse().map_err(CommandParseError::Invalid),
+            None => Ok(CommandType::NoCommand),
+        }?;
+        match cmd_type {
+            CommandType::Help => Ok(Command::Help),
+            CommandType::NoCommand => Ok(Command::None),
+            CommandType::Connect => parse_connect_cmd(args),
+            CommandType::Disconnect => parse_disconnect_cmd(args),
+            CommandType::Activate => parse_activate_cmd(args),
+            CommandType::Deactivate => parse_deactivate_cmd(args),
+            CommandType::List => Ok(Command::List),
+            CommandType::SetHost => parse_set_host(args),
+            CommandType::SetPort => parse_set_port(args),
+        }
+    }
+}
+
+fn parse_connect_cmd(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::Connect);
+    let pos = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    let host = args.next().ok_or(USAGE)?.to_string();
+    let port = args.next().and_then(|p| p.parse().ok());
+    Ok(Command::Connect(pos, host, port))
+}
+
+fn parse_disconnect_cmd(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::Disconnect);
+    let id = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    Ok(Command::Disconnect(id))
+}
+
+fn parse_activate_cmd(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::Activate);
+    let id = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    Ok(Command::Activate(id))
+}
+
+fn parse_deactivate_cmd(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::Deactivate);
+    let id = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    Ok(Command::Deactivate(id))
+}
+
+fn parse_set_host(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::SetHost);
+    let id = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    let host = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    Ok(Command::SetHost(id, host))
+}
+
+fn parse_set_port(mut args: SplitWhitespace<'_>) -> Result<Command, CommandParseError> {
+    const USAGE: CommandParseError = CommandParseError::Usage(CommandType::SetPort);
+    let id = args.next().ok_or(USAGE)?.parse().map_err(|_| USAGE)?;
+    let port = args.next().and_then(|p| p.parse().ok());
+    Ok(Command::SetPort(id, port))
+}

lan-mouse-cli/src/lib.rs

@@ -1,167 +1,298 @@
-use clap::{Args, Parser, Subcommand};
 use futures::StreamExt;
-
-use std::{net::IpAddr, time::Duration};
-use thiserror::Error;
-
-use lan_mouse_ipc::{
-    connect_async, ClientHandle, ConnectionError, FrontendEvent, FrontendRequest, IpcError,
-    Position,
+use tokio::{
+    io::{AsyncBufReadExt, BufReader},
+    task::LocalSet,
 };
 
-#[derive(Debug, Error)]
-pub enum CliError {
-    /// is the service running?
-    #[error("could not connect: `{0}` - is the service running?")]
-    ServiceNotRunning(#[from] ConnectionError),
-    #[error("error communicating with service: {0}")]
-    Ipc(#[from] IpcError),
-}
+use std::io::{self, Write};
 
-#[derive(Parser, Clone, Debug, PartialEq, Eq)]
-#[command(name = "lan-mouse-cli", about = "LanMouse CLI interface")]
-pub struct CliArgs {
-    #[command(subcommand)]
-    command: CliSubcommand,
-}
+use self::command::{Command, CommandType};
 
-#[derive(Args, Clone, Debug, PartialEq, Eq)]
-struct Client {
-    #[arg(long)]
-    hostname: Option<String>,
-    #[arg(long)]
-    port: Option<u16>,
-    #[arg(long)]
-    ips: Option<Vec<IpAddr>>,
-    #[arg(long)]
-    enter_hook: Option<String>,
-}
+use lan_mouse_ipc::{
+    AsyncFrontendEventReader, AsyncFrontendRequestWriter, ClientConfig, ClientHandle, ClientState,
+    FrontendEvent, FrontendRequest, IpcError, DEFAULT_PORT,
+};
 
-#[derive(Clone, Subcommand, Debug, PartialEq, Eq)]
-enum CliSubcommand {
-    /// add a new client
-    AddClient(Client),
-    /// remove an existing client
-    RemoveClient { id: ClientHandle },
-    /// activate a client
-    Activate { id: ClientHandle },
-    /// deactivate a client
-    Deactivate { id: ClientHandle },
-    /// list configured clients
-    List,
-    /// change hostname
-    SetHost {
-        id: ClientHandle,
-        host: Option<String>,
-    },
-    /// change port
-    SetPort { id: ClientHandle, port: u16 },
-    /// set position
-    SetPosition { id: ClientHandle, pos: Position },
-    /// set ips
-    SetIps { id: ClientHandle, ips: Vec<IpAddr> },
-    /// re-enable capture
-    EnableCapture,
-    /// re-enable emulation
-    EnableEmulation,
-    /// authorize a public key
-    AuthorizeKey {
-        description: String,
-        sha256_fingerprint: String,
-    },
-    /// deauthorize a public key
-    RemoveAuthorizedKey { sha256_fingerprint: String },
-}
+mod command;
 
-pub async fn run(args: CliArgs) -> Result<(), CliError> {
-    execute(args.command).await?;
+pub fn run() -> Result<(), IpcError> {
+    let runtime = tokio::runtime::Builder::new_current_thread()
+        .enable_io()
+        .enable_time()
+        .build()?;
+    runtime.block_on(LocalSet::new().run_until(async move {
+        let (rx, tx) = lan_mouse_ipc::connect_async().await?;
+        let mut cli = Cli::new(rx, tx);
+        cli.run().await
+    }))?;
     Ok(())
 }
 
-async fn execute(cmd: CliSubcommand) -> Result<(), CliError> {
-    let (mut rx, mut tx) = connect_async(Some(Duration::from_millis(500))).await?;
-    match cmd {
-        CliSubcommand::AddClient(Client {
-            hostname,
-            port,
-            ips,
-            enter_hook,
-        }) => {
-            tx.request(FrontendRequest::Create).await?;
-            while let Some(e) = rx.next().await {
-                if let FrontendEvent::Created(handle, _, _) = e? {
-                    if let Some(hostname) = hostname {
-                        tx.request(FrontendRequest::UpdateHostname(handle, Some(hostname)))
-                            .await?;
-                    }
-                    if let Some(port) = port {
-                        tx.request(FrontendRequest::UpdatePort(handle, port))
-                            .await?;
-                    }
-                    if let Some(ips) = ips {
-                        tx.request(FrontendRequest::UpdateFixIps(handle, ips))
-                            .await?;
-                    }
-                    if let Some(enter_hook) = enter_hook {
-                        tx.request(FrontendRequest::UpdateEnterHook(handle, Some(enter_hook)))
-                            .await?;
-                    }
-                    break;
-                }
-            }
-        }
-        CliSubcommand::RemoveClient { id } => tx.request(FrontendRequest::Delete(id)).await?,
-        CliSubcommand::Activate { id } => tx.request(FrontendRequest::Activate(id, true)).await?,
-        CliSubcommand::Deactivate { id } => {
-            tx.request(FrontendRequest::Activate(id, false)).await?
-        }
-        CliSubcommand::List => {
-            tx.request(FrontendRequest::Enumerate()).await?;
-            while let Some(e) = rx.next().await {
-                if let FrontendEvent::Enumerate(clients) = e? {
-                    for (handle, config, state) in clients {
-                        let host = config.hostname.unwrap_or("unknown".to_owned());
-                        let port = config.port;
-                        let pos = config.pos;
-                        let active = state.active;
-                        let ips = state.ips;
-                        println!(
-                            "id {handle}: {host}:{port} ({pos}) active: {active}, ips: {ips:?}"
-                        );
-                    }
-                    break;
-                }
-            }
-        }
-        CliSubcommand::SetHost { id, host } => {
-            tx.request(FrontendRequest::UpdateHostname(id, host))
-                .await?
-        }
-        CliSubcommand::SetPort { id, port } => {
-            tx.request(FrontendRequest::UpdatePort(id, port)).await?
-        }
-        CliSubcommand::SetPosition { id, pos } => {
-            tx.request(FrontendRequest::UpdatePosition(id, pos)).await?
-        }
-        CliSubcommand::SetIps { id, ips } => {
-            tx.request(FrontendRequest::UpdateFixIps(id, ips)).await?
-        }
-        CliSubcommand::EnableCapture => tx.request(FrontendRequest::EnableCapture).await?,
-        CliSubcommand::EnableEmulation => tx.request(FrontendRequest::EnableEmulation).await?,
-        CliSubcommand::AuthorizeKey {
-            description,
-            sha256_fingerprint,
-        } => {
-            tx.request(FrontendRequest::AuthorizeKey(
-                description,
-                sha256_fingerprint,
-            ))
-            .await?
-        }
-        CliSubcommand::RemoveAuthorizedKey { sha256_fingerprint } => {
-            tx.request(FrontendRequest::RemoveAuthorizedKey(sha256_fingerprint))
-                .await?
+struct Cli {
+    clients: Vec<(ClientHandle, ClientConfig, ClientState)>,
+    rx: AsyncFrontendEventReader,
+    tx: AsyncFrontendRequestWriter,
+}
+
+impl Cli {
+    fn new(rx: AsyncFrontendEventReader, tx: AsyncFrontendRequestWriter) -> Cli {
+        Self {
+            clients: vec![],
+            rx,
+            tx,
         }
     }
+
+    async fn run(&mut self) -> Result<(), IpcError> {
+        let stdin = tokio::io::stdin();
+        let stdin = BufReader::new(stdin);
+        let mut stdin = stdin.lines();
+
+        /* initial state sync */
+        self.clients = loop {
+            match self.rx.next().await {
+                Some(Ok(e)) => {
+                    if let FrontendEvent::Enumerate(clients) = e {
+                        break clients;
+                    }
+                }
+                Some(Err(e)) => return Err(e),
+                None => return Ok(()),
+            }
+        };
+
+        loop {
+            prompt()?;
+            tokio::select! {
+                line = stdin.next_line() => {
+                    let Some(line) = line? else {
+                        break Ok(());
+                    };
+                    let cmd: Command = match line.parse() {
+                        Ok(cmd) => cmd,
+                        Err(e) => {
+                            eprintln!("{e}");
+                            continue;
+                        }
+                    };
+                    self.execute(cmd).await?;
+                }
+                event = self.rx.next() => {
+                    if let Some(event) = event {
+                        self.handle_event(event?);
+                    } else {
+                        break Ok(());
+                    }
+                }
+            }
+        }
+    }
+
+    async fn execute(&mut self, cmd: Command) -> Result<(), IpcError> {
+        match cmd {
+            Command::None => {}
+            Command::Connect(pos, host, port) => {
+                let request = FrontendRequest::Create;
+                self.tx.request(request).await?;
+                let handle = loop {
+                    if let Some(Ok(event)) = self.rx.next().await {
+                        match event {
+                            FrontendEvent::Created(h, c, s) => {
+                                self.clients.push((h, c, s));
+                                break h;
+                            }
+                            _ => {
+                                self.handle_event(event);
+                                continue;
+                            }
+                        }
+                    }
+                };
+                for request in [
+                    FrontendRequest::UpdateHostname(handle, Some(host.clone())),
+                    FrontendRequest::UpdatePort(handle, port.unwrap_or(DEFAULT_PORT)),
+                    FrontendRequest::UpdatePosition(handle, pos),
+                ] {
+                    self.tx.request(request).await?;
+                }
+            }
+            Command::Disconnect(id) => {
+                self.tx.request(FrontendRequest::Delete(id)).await?;
+                loop {
+                    if let Some(Ok(event)) = self.rx.next().await {
+                        self.handle_event(event.clone());
+                        if let FrontendEvent::Deleted(_) = event {
+                            self.handle_event(event);
+                            break;
+                        }
+                    }
+                }
+            }
+            Command::Activate(id) => {
+                self.tx.request(FrontendRequest::Activate(id, true)).await?;
+            }
+            Command::Deactivate(id) => {
+                self.tx
+                    .request(FrontendRequest::Activate(id, false))
+                    .await?;
+            }
+            Command::List => {
+                self.tx.request(FrontendRequest::Enumerate()).await?;
+                while let Some(e) = self.rx.next().await {
+                    let event = e?;
+                    self.handle_event(event.clone());
+                    if let FrontendEvent::Enumerate(_) = event {
+                        break;
+                    }
+                }
+            }
+            Command::SetHost(handle, host) => {
+                let request = FrontendRequest::UpdateHostname(handle, Some(host.clone()));
+                self.tx.request(request).await?;
+            }
+            Command::SetPort(handle, port) => {
+                let request = FrontendRequest::UpdatePort(handle, port.unwrap_or(DEFAULT_PORT));
+                self.tx.request(request).await?;
+            }
+            Command::Help => {
+                for cmd_type in [
+                    CommandType::List,
+                    CommandType::Connect,
+                    CommandType::Disconnect,
+                    CommandType::Activate,
+                    CommandType::Deactivate,
+                    CommandType::SetHost,
+                    CommandType::SetPort,
+                ] {
+                    eprintln!("{}", cmd_type.usage());
+                }
+            }
+        }
+        Ok(())
+    }
+
+    fn find_mut(
+        &mut self,
+        handle: ClientHandle,
+    ) -> Option<&mut (ClientHandle, ClientConfig, ClientState)> {
+        self.clients.iter_mut().find(|(h, _, _)| *h == handle)
+    }
+
+    fn remove(
+        &mut self,
+        handle: ClientHandle,
+    ) -> Option<(ClientHandle, ClientConfig, ClientState)> {
+        let idx = self.clients.iter().position(|(h, _, _)| *h == handle);
+        idx.map(|i| self.clients.swap_remove(i))
+    }
+
+    fn handle_event(&mut self, event: FrontendEvent) {
+        match event {
+            FrontendEvent::Created(h, c, s) => {
+                eprint!("client added ({h}): ");
+                print_config(&c);
+                eprint!(" ");
+                print_state(&s);
+                eprintln!();
+                self.clients.push((h, c, s));
+            }
+            FrontendEvent::NoSuchClient(h) => {
+                eprintln!("no such client: {h}");
+            }
+            FrontendEvent::State(h, c, s) => {
+                if let Some((_, config, state)) = self.find_mut(h) {
+                    let old_host = config.hostname.clone().unwrap_or("\"\"".into());
+                    let new_host = c.hostname.clone().unwrap_or("\"\"".into());
+                    if old_host != new_host {
+                        eprintln!(
+                            "client {h}: hostname updated ({} -> {})",
+                            old_host, new_host
+                        );
+                    }
+                    if config.port != c.port {
+                        eprintln!("client {h} changed port: {} -> {}", config.port, c.port);
+                    }
+                    if config.fix_ips != c.fix_ips {
+                        eprintln!("client {h} ips updated: {:?}", c.fix_ips)
+                    }
+                    *config = c;
+                    if state.active ^ s.active {
+                        eprintln!(
+                            "client {h} {}",
+                            if s.active { "activated" } else { "deactivated" }
+                        );
+                    }
+                    *state = s;
+                }
+            }
+            FrontendEvent::Deleted(h) => {
+                if let Some((h, c, _)) = self.remove(h) {
+                    eprint!("client {h} removed (");
+                    print_config(&c);
+                    eprintln!(")");
+                }
+            }
+            FrontendEvent::PortChanged(p, e) => {
+                if let Some(e) = e {
+                    eprintln!("failed to change port: {e}");
+                } else {
+                    eprintln!("changed port to {p}");
+                }
+            }
+            FrontendEvent::Enumerate(clients) => {
+                self.clients = clients;
+                self.print_clients();
+            }
+            FrontendEvent::Error(e) => {
+                eprintln!("ERROR: {e}");
+            }
+            FrontendEvent::CaptureStatus(s) => {
+                eprintln!("capture status: {s:?}")
+            }
+            FrontendEvent::EmulationStatus(s) => {
+                eprintln!("emulation status: {s:?}")
+            }
+            FrontendEvent::AuthorizedUpdated(fingerprints) => {
+                eprintln!("authorized keys changed:");
+                for (desc, fp) in fingerprints {
+                    eprintln!("{desc}: {fp}");
+                }
+            }
+            FrontendEvent::PublicKeyFingerprint(fp) => {
+                eprintln!("the public key fingerprint of this device is {fp}");
+            }
+            FrontendEvent::IncomingConnected(..) => {}
+            FrontendEvent::IncomingDisconnected(..) => {}
+        }
+    }
+
+    fn print_clients(&mut self) {
+        for (h, c, s) in self.clients.iter() {
+            eprint!("client {h}: ");
+            print_config(c);
+            eprint!(" ");
+            print_state(s);
+            eprintln!();
+        }
+    }
+}
+
+fn prompt() -> io::Result<()> {
+    eprint!("lan-mouse > ");
+    std::io::stderr().flush()?;
     Ok(())
 }
+
+fn print_config(c: &ClientConfig) {
+    eprint!(
+        "{}:{} ({}), ips: {:?}",
+        c.hostname.clone().unwrap_or("(no hostname)".into()),
+        c.port,
+        c.pos,
+        c.fix_ips
+    );
+}
+
+fn print_state(s: &ClientState) {
+    eprint!("active: {}, dns: {:?}", s.active, s.ips);
+}

lan-mouse-gtk/Cargo.toml

@@ -13,7 +13,6 @@ async-channel = { version = "2.1.1" }
 hostname = "0.4.0"
 log = "0.4.20"
 lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.2.0" }
-thiserror = "2.0.0"
 
 [build-dependencies]
 glib-build-tools = { version = "0.20.0" }

lan-mouse-gtk/resources/authorization_window.ui

@@ -1,102 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <requires lib="gtk" version="4.0"/>
-  <requires lib="libadwaita" version="1.0"/>
-  <template class="AuthorizationWindow" parent="AdwWindow">
-    <property name="modal">True</property>
-    <property name="width-request">180</property>
-    <property name="default-width">180</property>
-    <property name="height-request">180</property>
-    <property name="default-height">180</property>
-    <property name="title" translatable="yes">Unauthorized Device</property>
-    <property name="content">
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <property name="vexpand">True</property>
-        <child type="top">
-          <object class="AdwHeaderBar">
-            <style>
-              <class name="flat"/>
-            </style>
-          </object>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="orientation">vertical</property>
-            <property name="spacing">30</property>
-            <property name="margin-start">30</property>
-            <property name="margin-end">30</property>
-            <property name="margin-top">30</property>
-            <property name="margin-bottom">30</property>
-            <child>
-              <object class="GtkLabel">
-                <property name="label">An unauthorized Device is trying to connect. Do you want to authorize this Device?</property>
-                <property name="width-request">100</property>
-                <property name="wrap">word-wrap</property>
-              </object>
-            </child>
-            <child>
-              <object class="AdwPreferencesGroup">
-                <property name="title">sha256 fingerprint</property>
-                <child>
-                  <object class="AdwActionRow">
-                    <property name="child">
-                      <object class="GtkLabel" id="fingerprint">
-                        <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
-                        <property name="vexpand">True</property>
-                        <property name="hexpand">False</property>
-                        <property name="wrap">True</property>
-                        <property name="wrap-mode">word-char</property>
-                        <property name="justify">center</property>
-                        <property name="xalign">0.5</property>
-                        <property name="margin-top">10</property>
-                        <property name="margin-bottom">10</property>
-                        <property name="margin-start">10</property>
-                        <property name="margin-end">10</property>
-                        <property name="width-chars">64</property>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-              </object>
-            </child>
-          </object>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="margin-start">30</property>
-            <property name="margin-end">30</property>
-            <property name="margin-top">30</property>
-            <property name="margin-bottom">30</property>
-            <property name="orientation">horizontal</property>
-            <property name="spacing">30</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="valign">end</property>
-            <child>
-              <object class="GtkButton" id="cancel_button">
-                <signal name="clicked" handler="handle_cancel" swapped="true"/>
-                <property name="label" translatable="yes">Cancel</property>
-                <property name="can-shrink">True</property>
-                <property name="height-request">50</property>
-                <property name="hexpand">True</property>
-              </object>
-            </child>
-            <child>
-              <object class="GtkButton" id="confirm_button">
-                <signal name="clicked" handler="handle_confirm" swapped="true"/>
-                <property name="label" translatable="yes">Authorize</property>
-                <property name="can-shrink">True</property>
-                <property name="height-request">50</property>
-                <property name="hexpand">True</property>
-                <style>
-                  <class name="destructive-action"/>
-                </style>
-              </object>
-            </child>
-          </object>
-        </child>
-      </object>
-    </property>
-  </template>
-</interface>

lan-mouse-gtk/resources/resources.gresource.xml

@@ -2,7 +2,6 @@
 <gresources>
   <gresource prefix="/de/feschber/LanMouse">
     <file compressed="true" preprocess="xml-stripblanks">window.ui</file>
-    <file compressed="true" preprocess="xml-stripblanks">authorization_window.ui</file>
     <file compressed="true" preprocess="xml-stripblanks">fingerprint_window.ui</file>
     <file compressed="true" preprocess="xml-stripblanks">client_row.ui</file>
     <file compressed="true" preprocess="xml-stripblanks">key_row.ui</file>

lan-mouse-gtk/src/authorization_window.rs

@@ -1,19 +0,0 @@
-mod imp;
-
-use glib::Object;
-use gtk::{gio, glib, subclass::prelude::ObjectSubclassIsExt};
-
-glib::wrapper! {
-    pub struct AuthorizationWindow(ObjectSubclass<imp::AuthorizationWindow>)
-    @extends adw::Window, gtk::Window, gtk::Widget,
-    @implements gio::ActionGroup, gio::ActionMap, gtk::Accessible, gtk::Buildable,
-                gtk::ConstraintTarget, gtk::Native, gtk::Root, gtk::ShortcutManager;
-}
-
-impl AuthorizationWindow {
-    pub(crate) fn new(fingerprint: &str) -> Self {
-        let window: Self = Object::builder().build();
-        window.imp().set_fingerprint(fingerprint);
-        window
-    }
-}

lan-mouse-gtk/src/authorization_window/imp.rs

@@ -1,75 +0,0 @@
-use std::sync::OnceLock;
-
-use adw::prelude::*;
-use adw::subclass::prelude::*;
-use glib::subclass::InitializingObject;
-use gtk::{
-    glib::{self, subclass::Signal},
-    template_callbacks, Button, CompositeTemplate, Label,
-};
-
-#[derive(CompositeTemplate, Default)]
-#[template(resource = "/de/feschber/LanMouse/authorization_window.ui")]
-pub struct AuthorizationWindow {
-    #[template_child]
-    pub fingerprint: TemplateChild<Label>,
-    #[template_child]
-    pub cancel_button: TemplateChild<Button>,
-    #[template_child]
-    pub confirm_button: TemplateChild<Button>,
-}
-
-#[glib::object_subclass]
-impl ObjectSubclass for AuthorizationWindow {
-    const NAME: &'static str = "AuthorizationWindow";
-    const ABSTRACT: bool = false;
-
-    type Type = super::AuthorizationWindow;
-    type ParentType = adw::Window;
-
-    fn class_init(klass: &mut Self::Class) {
-        klass.bind_template();
-        klass.bind_template_callbacks();
-    }
-
-    fn instance_init(obj: &InitializingObject<Self>) {
-        obj.init_template();
-    }
-}
-
-#[template_callbacks]
-impl AuthorizationWindow {
-    #[template_callback]
-    fn handle_confirm(&self, _button: Button) {
-        let fp = self.fingerprint.text().as_str().trim().to_owned();
-        self.obj().emit_by_name("confirm-clicked", &[&fp])
-    }
-
-    #[template_callback]
-    fn handle_cancel(&self, _: Button) {
-        self.obj().emit_by_name("cancel-clicked", &[])
-    }
-
-    pub(super) fn set_fingerprint(&self, fingerprint: &str) {
-        self.fingerprint.set_text(fingerprint);
-    }
-}
-
-impl ObjectImpl for AuthorizationWindow {
-    fn signals() -> &'static [Signal] {
-        static SIGNALS: OnceLock<Vec<Signal>> = OnceLock::new();
-        SIGNALS.get_or_init(|| {
-            vec![
-                Signal::builder("confirm-clicked")
-                    .param_types([String::static_type()])
-                    .build(),
-                Signal::builder("cancel-clicked").build(),
-            ]
-        })
-    }
-}
-
-impl WidgetImpl for AuthorizationWindow {}
-impl WindowImpl for AuthorizationWindow {}
-impl ApplicationWindowImpl for AuthorizationWindow {}
-impl AdwWindowImpl for AuthorizationWindow {}

lan-mouse-gtk/src/fingerprint_window.rs

@@ -1,7 +1,7 @@
 mod imp;
 
 use glib::Object;
-use gtk::{gio, glib, prelude::ObjectExt, subclass::prelude::ObjectSubclassIsExt};
+use gtk::{gio, glib};
 
 glib::wrapper! {
     pub struct FingerprintWindow(ObjectSubclass<imp::FingerprintWindow>)
@@ -11,12 +11,8 @@ glib::wrapper! {
 }
 
 impl FingerprintWindow {
-    pub(crate) fn new(fingerprint: Option<String>) -> Self {
+    pub(crate) fn new() -> Self {
         let window: Self = Object::builder().build();
-        if let Some(fp) = fingerprint {
-            window.imp().fingerprint.set_property("text", fp);
-            window.imp().fingerprint.set_property("editable", false);
-        }
         window
     }
 }

lan-mouse-gtk/src/key_row.rs

@@ -8,7 +8,7 @@ use super::KeyObject;
 
 glib::wrapper! {
     pub struct KeyRow(ObjectSubclass<imp::KeyRow>)
-    @extends gtk::ListBoxRow, gtk::Widget, adw::PreferencesRow, adw::ActionRow,
+    @extends gtk::ListBoxRow, gtk::Widget, adw::PreferencesRow, adw::ExpanderRow,
     @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
 }
 

lan-mouse-gtk/src/lib.rs

@@ -1,4 +1,3 @@
-mod authorization_window;
 mod client_object;
 mod client_row;
 mod fingerprint_window;
@@ -19,15 +18,7 @@ use gtk::{gio, glib, prelude::ApplicationExt};
 use self::client_object::ClientObject;
 use self::key_object::KeyObject;
 
-use thiserror::Error;
-
-#[derive(Error, Debug)]
-pub enum GtkError {
-    #[error("gtk frontend exited with non zero exit code: {0}")]
-    NonZeroExitCode(i32),
-}
-
-pub fn run() -> Result<(), GtkError> {
+pub fn run() -> glib::ExitCode {
     log::debug!("running gtk frontend");
     #[cfg(windows)]
     let ret = std::thread::Builder::new()
@@ -40,10 +31,13 @@ pub fn run() -> Result<(), GtkError> {
     #[cfg(not(windows))]
     let ret = gtk_main();
 
-    match ret {
-        glib::ExitCode::SUCCESS => Ok(()),
-        e => Err(GtkError::NonZeroExitCode(e.value())),
+    if ret == glib::ExitCode::FAILURE {
+        log::error!("frontend exited with failure");
+    } else {
+        log::info!("frontend exited successfully");
     }
+
+    ret
 }
 
 fn gtk_main() -> glib::ExitCode {
@@ -147,21 +141,8 @@ fn build_ui(app: &Application) {
                     FrontendEvent::EmulationStatus(s) => window.set_emulation(s.into()),
                     FrontendEvent::AuthorizedUpdated(keys) => window.set_authorized_keys(keys),
                     FrontendEvent::PublicKeyFingerprint(fp) => window.set_pk_fp(&fp),
-                    FrontendEvent::ConnectionAttempt { fingerprint } => {
-                        window.request_authorization(&fingerprint);
-                    }
-                    FrontendEvent::DeviceConnected {
-                        fingerprint: _,
-                        addr,
-                    } => {
-                        window.show_toast(format!("device connected: {addr}").as_str());
-                    }
-                    FrontendEvent::DeviceEntered {
-                        fingerprint: _,
-                        addr,
-                        pos,
-                    } => {
-                        window.show_toast(format!("device entered: {addr} ({pos})").as_str());
+                    FrontendEvent::IncomingConnected(_fingerprint, addr, pos) => {
+                        window.show_toast(format!("device connected: {addr} ({pos})").as_str());
                     }
                     FrontendEvent::IncomingDisconnected(addr) => {
                         window.show_toast(format!("{addr} disconnected").as_str());

lan-mouse-gtk/src/window.rs

@@ -16,10 +16,7 @@ use lan_mouse_ipc::{
     DEFAULT_PORT,
 };
 
-use crate::{
-    authorization_window::AuthorizationWindow, fingerprint_window::FingerprintWindow,
-    key_object::KeyObject, key_row::KeyRow,
-};
+use crate::{fingerprint_window::FingerprintWindow, key_object::KeyObject, key_row::KeyRow};
 
 use super::{client_object::ClientObject, client_row::ClientRow};
 
@@ -129,7 +126,7 @@ impl Window {
                             #[strong]
                             window,
                             move |row: ClientRow, hostname: String| {
-                                log::debug!("request-hostname-change");
+                                log::info!("request-hostname-change");
                                 if let Some(client) = window.client_by_idx(row.index() as u32) {
                                     let hostname = Some(hostname).filter(|s| !s.is_empty());
                                     /* changed in response to FrontendEvent
@@ -166,7 +163,7 @@ impl Window {
                             window,
                             move |row: ClientRow, active: bool| {
                                 if let Some(client) = window.client_by_idx(row.index() as u32) {
-                                    log::debug!(
+                                    log::info!(
                                         "request: {} client",
                                         if active { "activating" } else { "deactivating" }
                                     );
@@ -397,8 +394,8 @@ impl Window {
         self.request(FrontendRequest::Create);
     }
 
-    fn open_fingerprint_dialog(&self, fp: Option<String>) {
-        let window = FingerprintWindow::new(fp);
+    fn open_fingerprint_dialog(&self) {
+        let window = FingerprintWindow::new();
         window.set_transient_for(Some(self));
         window.connect_closure(
             "confirm-clicked",
@@ -472,29 +469,4 @@ impl Window {
     pub(super) fn set_pk_fp(&self, fingerprint: &str) {
         self.imp().fingerprint_row.set_subtitle(fingerprint);
     }
-
-    pub(super) fn request_authorization(&self, fingerprint: &str) {
-        let window = AuthorizationWindow::new(fingerprint);
-        window.set_transient_for(Some(self));
-        window.connect_closure(
-            "confirm-clicked",
-            false,
-            closure_local!(
-                #[strong(rename_to = parent)]
-                self,
-                move |w: AuthorizationWindow, fp: String| {
-                    w.close();
-                    parent.open_fingerprint_dialog(Some(fp));
-                }
-            ),
-        );
-        window.connect_closure(
-            "cancel-clicked",
-            false,
-            closure_local!(move |w: AuthorizationWindow| {
-                w.close();
-            }),
-        );
-        window.present();
-    }
 }

lan-mouse-gtk/src/window/imp.rs

@@ -149,7 +149,7 @@ impl Window {
 
     #[template_callback]
     fn handle_add_cert_fingerprint(&self, _button: &Button) {
-        self.obj().open_fingerprint_dialog(None);
+        self.obj().open_fingerprint_dialog();
     }
 
     pub fn set_port(&self, port: u16) {

lan-mouse-ipc/src/connect_async.rs

@@ -1,6 +1,7 @@
 use crate::{ConnectionError, FrontendEvent, FrontendRequest, IpcError};
 use std::{
     cmp::min,
+    io,
     task::{ready, Poll},
     time::Duration,
 };
@@ -46,7 +47,7 @@ impl Stream for AsyncFrontendEventReader {
 }
 
 impl AsyncFrontendRequestWriter {
-    pub async fn request(&mut self, request: FrontendRequest) -> Result<(), IpcError> {
+    pub async fn request(&mut self, request: FrontendRequest) -> Result<(), io::Error> {
         let mut json = serde_json::to_string(&request).unwrap();
         log::debug!("requesting: {json}");
         json.push('\n');
@@ -56,16 +57,8 @@ impl AsyncFrontendRequestWriter {
 }
 
 pub async fn connect_async(
-    timeout: Option<Duration>,
 ) -> Result<(AsyncFrontendEventReader, AsyncFrontendRequestWriter), ConnectionError> {
-    let stream = if let Some(duration) = timeout {
-        tokio::select! {
-            s = wait_for_service() => s?,
-            _ = tokio::time::sleep(duration) => return Err(ConnectionError::Timeout),
-        }
-    } else {
-        wait_for_service().await?
-    };
+    let stream = wait_for_service().await?;
     #[cfg(unix)]
     let (rx, tx): (ReadHalf<UnixStream>, WriteHalf<UnixStream>) = tokio::io::split(stream);
     #[cfg(windows)]

lan-mouse-ipc/src/lib.rs

@@ -30,8 +30,6 @@ pub enum ConnectionError {
     SocketPath(#[from] SocketPathError),
     #[error(transparent)]
     Io(#[from] io::Error),
-    #[error("connection timed out")]
-    Timeout,
 }
 
 #[derive(Debug, Error)]
@@ -59,7 +57,6 @@ pub enum IpcError {
 pub const DEFAULT_PORT: u16 = 4242;
 
 #[derive(Debug, Default, Eq, Hash, PartialEq, Clone, Copy, Serialize, Deserialize)]
-#[serde(rename_all = "lowercase")]
 pub enum Position {
     #[default]
     Left,
@@ -202,21 +199,10 @@ pub enum FrontendEvent {
     AuthorizedUpdated(HashMap<String, String>),
     /// public key fingerprint of this device
     PublicKeyFingerprint(String),
-    /// new device connected
-    DeviceConnected {
-        addr: SocketAddr,
-        fingerprint: String,
-    },
-    /// incoming device entered the screen
-    DeviceEntered {
-        fingerprint: String,
-        addr: SocketAddr,
-        pos: Position,
-    },
+    /// incoming connected
+    IncomingConnected(String, SocketAddr, Position),
     /// incoming disconnected
     IncomingDisconnected(SocketAddr),
-    /// failed connection attempt (approval for fingerprint required)
-    ConnectionAttempt { fingerprint: String },
 }
 
 #[derive(Debug, Eq, PartialEq, Clone, Serialize, Deserialize)]
@@ -251,8 +237,6 @@ pub enum FrontendRequest {
     AuthorizeKey(String, String),
     /// remove fingerprint (fingerprint)
     RemoveAuthorizedKey(String),
-    /// change the hook command
-    UpdateEnterHook(u64, Option<String>),
 }
 
 #[derive(Clone, Copy, PartialEq, Eq, Debug, Default, Serialize, Deserialize)]

nix/hm-module.nix

@@ -52,7 +52,7 @@ in {
       };
       Service = {
         Type = "simple";
-        ExecStart = "${cfg.package}/bin/lan-mouse daemon";
+        ExecStart = "${cfg.package}/bin/lan-mouse --daemon";
       };
       Install.WantedBy = [
         (lib.mkIf config.wayland.windowManager.hyprland.systemd.enable "hyprland-session.target")
@@ -65,7 +65,7 @@ in {
       config = {
         ProgramArguments = [
           "${cfg.package}/bin/lan-mouse"
-          "daemon"
+          "--daemon"
         ];
         KeepAlive = true;
       };

service/lan-mouse.service

@@ -6,7 +6,7 @@ After=graphical-session.target
 BindsTo=graphical-session.target
 
 [Service]
-ExecStart=/usr/bin/lan-mouse daemon
+ExecStart=/usr/bin/lan-mouse --daemon
 Restart=on-failure
 
 [Install]

src/capture_test.rs

@@ -1,16 +1,12 @@
 use crate::config::Config;
-use clap::Args;
 use futures::StreamExt;
 use input_capture::{self, CaptureError, CaptureEvent, InputCapture, InputCaptureError, Position};
 use input_event::{Event, KeyboardEvent};
 
-#[derive(Args, Clone, Debug, Eq, PartialEq)]
-pub struct TestCaptureArgs {}
-
-pub async fn run(config: Config, _args: TestCaptureArgs) -> Result<(), InputCaptureError> {
+pub async fn run(config: Config) -> Result<(), InputCaptureError> {
     log::info!("running input capture test");
     log::info!("creating input capture");
-    let backend = config.capture_backend().map(|b| b.into());
+    let backend = config.capture_backend.map(|b| b.into());
     loop {
         let mut input_capture = InputCapture::new(backend).await?;
         log::info!("creating clients");

src/client.rs

@@ -199,13 +199,6 @@ impl ClientManager {
         }
     }
 
-    /// update the enter hook command of the client
-    pub(crate) fn set_enter_hook(&self, handle: ClientHandle, enter_hook: Option<String>) {
-        if let Some((c, _s)) = self.clients.borrow_mut().get_mut(handle as usize) {
-            c.cmd = enter_hook;
-        }
-    }
-
     /// set resolving status of the client
     pub(crate) fn set_resolving(&self, handle: ClientHandle, status: bool) {
         if let Some((_, s)) = self.clients.borrow_mut().get_mut(handle as usize) {

src/config.rs

@@ -1,6 +1,4 @@
-use crate::capture_test::TestCaptureArgs;
-use crate::emulation_test::TestEmulationArgs;
-use clap::{Parser, Subcommand, ValueEnum};
+use clap::{Parser, ValueEnum};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::env::{self, VarError};
@@ -12,7 +10,6 @@ use std::{collections::HashSet, io};
 use thiserror::Error;
 use toml;
 
-use lan_mouse_cli::CliArgs;
 use lan_mouse_ipc::{Position, DEFAULT_PORT};
 
 use input_event::scancode::{
@@ -24,50 +21,33 @@ use shadow_rs::shadow;
 
 shadow!(build);
 
-const CONFIG_FILE_NAME: &str = "config.toml";
-const CERT_FILE_NAME: &str = "lan-mouse.pem";
-
-fn default_path() -> Result<PathBuf, VarError> {
-    #[cfg(unix)]
-    let default_path = {
-        let xdg_config_home =
-            env::var("XDG_CONFIG_HOME").unwrap_or(format!("{}/.config", env::var("HOME")?));
-        format!("{xdg_config_home}/lan-mouse/")
-    };
-
-    #[cfg(not(unix))]
-    let default_path = {
-        let app_data =
-            env::var("LOCALAPPDATA").unwrap_or(format!("{}/.config", env::var("USERPROFILE")?));
-        format!("{app_data}\\lan-mouse\\")
-    };
-    Ok(PathBuf::from(default_path))
-}
-
 #[derive(Serialize, Deserialize, Debug)]
-struct ConfigToml {
-    capture_backend: Option<CaptureBackend>,
-    emulation_backend: Option<EmulationBackend>,
-    port: Option<u16>,
-    release_bind: Option<Vec<scancode::Linux>>,
-    cert_path: Option<PathBuf>,
-    clients: Option<Vec<TomlClient>>,
-    authorized_fingerprints: Option<HashMap<String, String>>,
+pub struct ConfigToml {
+    pub capture_backend: Option<CaptureBackend>,
+    pub emulation_backend: Option<EmulationBackend>,
+    pub port: Option<u16>,
+    pub frontend: Option<Frontend>,
+    pub release_bind: Option<Vec<scancode::Linux>>,
+    pub cert_path: Option<PathBuf>,
+    pub left: Option<TomlClient>,
+    pub right: Option<TomlClient>,
+    pub top: Option<TomlClient>,
+    pub bottom: Option<TomlClient>,
+    pub authorized_fingerprints: Option<HashMap<String, String>>,
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug, Eq, PartialEq)]
-struct TomlClient {
-    hostname: Option<String>,
-    host_name: Option<String>,
-    ips: Option<Vec<IpAddr>>,
-    port: Option<u16>,
-    position: Option<Position>,
-    activate_on_startup: Option<bool>,
-    enter_hook: Option<String>,
+#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+pub struct TomlClient {
+    pub hostname: Option<String>,
+    pub host_name: Option<String>,
+    pub ips: Option<Vec<IpAddr>>,
+    pub port: Option<u16>,
+    pub activate_on_startup: Option<bool>,
+    pub enter_hook: Option<String>,
 }
 
 impl ConfigToml {
-    fn new(path: &Path) -> Result<ConfigToml, ConfigError> {
+    pub fn new(path: &Path) -> Result<ConfigToml, ConfigError> {
         let config = fs::read_to_string(path)?;
         Ok(toml::from_str::<_>(&config)?)
     }
@@ -75,14 +55,30 @@ impl ConfigToml {
 
 #[derive(Parser, Debug)]
 #[command(author, version=build::CLAP_LONG_VERSION, about, long_about = None)]
-struct Args {
+struct CliArgs {
     /// the listen port for lan-mouse
     #[arg(short, long)]
     port: Option<u16>,
 
+    /// the frontend to use [cli | gtk]
+    #[arg(short, long)]
+    frontend: Option<Frontend>,
+
     /// non-default config file location
     #[arg(short, long)]
-    config: Option<PathBuf>,
+    config: Option<String>,
+
+    /// run only the service as a daemon without the frontend
+    #[arg(short, long)]
+    daemon: bool,
+
+    /// test input capture
+    #[arg(long)]
+    test_capture: bool,
+
+    /// test input emulation
+    #[arg(long)]
+    test_emulation: bool,
 
     /// capture backend override
     #[arg(long)]
@@ -95,22 +91,6 @@ struct Args {
     /// path to non-default certificate location
     #[arg(long)]
     cert_path: Option<PathBuf>,
-
-    /// subcommands
-    #[command(subcommand)]
-    command: Option<Command>,
-}
-
-#[derive(Subcommand, Clone, Debug, Eq, PartialEq)]
-pub enum Command {
-    /// test input emulation
-    TestEmulation(TestEmulationArgs),
-    /// test input capture
-    TestCapture(TestCaptureArgs),
-    /// Lan Mouse commandline interface
-    Cli(CliArgs),
-    /// run in daemon mode
-    Daemon,
 }
 
 #[derive(Clone, Copy, Debug, Deserialize, Eq, PartialEq, Serialize, ValueEnum)]
@@ -234,16 +214,50 @@ impl Display for EmulationBackend {
     }
 }
 
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq, Eq, Serialize, ValueEnum)]
+pub enum Frontend {
+    #[serde(rename = "gtk")]
+    Gtk,
+    #[serde(rename = "cli")]
+    Cli,
+}
+
+impl Default for Frontend {
+    fn default() -> Self {
+        if cfg!(feature = "gtk") {
+            Self::Gtk
+        } else {
+            Self::Cli
+        }
+    }
+}
+
 #[derive(Debug)]
 pub struct Config {
-    /// command line arguments
-    args: Args,
-    /// path to the certificate file used
-    cert_path: PathBuf,
-    /// path to the config file used
-    config_path: PathBuf,
-    /// the (optional) toml config and it's path
-    config_toml: Option<ConfigToml>,
+    /// the path to the configuration file used
+    pub path: PathBuf,
+    /// public key fingerprints authorized for connection
+    pub authorized_fingerprints: HashMap<String, String>,
+    /// optional input-capture backend override
+    pub capture_backend: Option<CaptureBackend>,
+    /// optional input-emulation backend override
+    pub emulation_backend: Option<EmulationBackend>,
+    /// the frontend to use
+    pub frontend: Frontend,
+    /// the port to use (initially)
+    pub port: u16,
+    /// list of clients
+    pub clients: Vec<(TomlClient, Position)>,
+    /// whether or not to run as a daemon
+    pub daemon: bool,
+    /// configured release bind
+    pub release_bind: Vec<scancode::Linux>,
+    /// test capture instead of running the app
+    pub test_capture: bool,
+    /// test emulation instead of running the app
+    pub test_emulation: bool,
+    /// path to the tls certificate to use
+    pub cert_path: PathBuf,
 }
 
 pub struct ConfigClient {
@@ -255,25 +269,6 @@ pub struct ConfigClient {
     pub enter_hook: Option<String>,
 }
 
-impl From<TomlClient> for ConfigClient {
-    fn from(toml: TomlClient) -> Self {
-        let active = toml.activate_on_startup.unwrap_or(false);
-        let enter_hook = toml.enter_hook;
-        let hostname = toml.hostname;
-        let ips = HashSet::from_iter(toml.ips.into_iter().flatten());
-        let port = toml.port.unwrap_or(DEFAULT_PORT);
-        let pos = toml.position.unwrap_or_default();
-        Self {
-            ips,
-            hostname,
-            port,
-            pos,
-            active,
-            enter_hook,
-        }
-    }
-}
-
 #[derive(Debug, Error)]
 pub enum ConfigError {
     #[error(transparent)]
@@ -289,99 +284,134 @@ const DEFAULT_RELEASE_KEYS: [scancode::Linux; 4] =
 
 impl Config {
     pub fn new() -> Result<Self, ConfigError> {
-        let args = Args::parse();
+        let args = CliArgs::parse();
+        const CONFIG_FILE_NAME: &str = "config.toml";
+        const CERT_FILE_NAME: &str = "lan-mouse.pem";
+
+        #[cfg(unix)]
+        let config_path = {
+            let xdg_config_home =
+                env::var("XDG_CONFIG_HOME").unwrap_or(format!("{}/.config", env::var("HOME")?));
+            format!("{xdg_config_home}/lan-mouse/")
+        };
+
+        #[cfg(not(unix))]
+        let config_path = {
+            let app_data =
+                env::var("LOCALAPPDATA").unwrap_or(format!("{}/.config", env::var("USERPROFILE")?));
+            format!("{app_data}\\lan-mouse\\")
+        };
+
+        let config_path = PathBuf::from(config_path);
+        let config_file = config_path.join(CONFIG_FILE_NAME);
 
         // --config <file> overrules default location
-        let config_path = args
-            .config
-            .clone()
-            .unwrap_or(default_path()?.join(CONFIG_FILE_NAME));
+        let config_file = args.config.map(PathBuf::from).unwrap_or(config_file);
 
-        let config_toml = match ConfigToml::new(&config_path) {
+        let mut config_toml = match ConfigToml::new(&config_file) {
             Err(e) => {
-                log::warn!("{config_path:?}: {e}");
+                log::warn!("{config_file:?}: {e}");
                 log::warn!("Continuing without config file ...");
                 None
             }
             Ok(c) => Some(c),
         };
 
-        // --cert-path <file> overrules default location
+        let frontend_arg = args.frontend;
+        let frontend_cfg = config_toml.as_ref().and_then(|c| c.frontend);
+        let frontend = frontend_arg.or(frontend_cfg).unwrap_or_default();
+
+        let port = args
+            .port
+            .or(config_toml.as_ref().and_then(|c| c.port))
+            .unwrap_or(DEFAULT_PORT);
+
+        log::debug!("{config_toml:?}");
+        let release_bind = config_toml
+            .as_ref()
+            .and_then(|c| c.release_bind.clone())
+            .unwrap_or(Vec::from_iter(DEFAULT_RELEASE_KEYS.iter().cloned()));
+
+        let capture_backend = args
+            .capture_backend
+            .or(config_toml.as_ref().and_then(|c| c.capture_backend));
+
+        let emulation_backend = args
+            .emulation_backend
+            .or(config_toml.as_ref().and_then(|c| c.emulation_backend));
+
         let cert_path = args
             .cert_path
-            .clone()
             .or(config_toml.as_ref().and_then(|c| c.cert_path.clone()))
-            .unwrap_or(default_path()?.join(CERT_FILE_NAME));
+            .unwrap_or(config_path.join(CERT_FILE_NAME));
+
+        let authorized_fingerprints = config_toml
+            .as_mut()
+            .and_then(|c| std::mem::take(&mut c.authorized_fingerprints))
+            .unwrap_or_default();
+
+        let mut clients: Vec<(TomlClient, Position)> = vec![];
+
+        if let Some(config_toml) = config_toml {
+            if let Some(c) = config_toml.right {
+                clients.push((c, Position::Right))
+            }
+            if let Some(c) = config_toml.left {
+                clients.push((c, Position::Left))
+            }
+            if let Some(c) = config_toml.top {
+                clients.push((c, Position::Top))
+            }
+            if let Some(c) = config_toml.bottom {
+                clients.push((c, Position::Bottom))
+            }
+        }
+
+        let daemon = args.daemon;
+        let test_capture = args.test_capture;
+        let test_emulation = args.test_emulation;
 
         Ok(Config {
-            args,
+            path: config_path,
+            authorized_fingerprints,
+            capture_backend,
+            emulation_backend,
+            daemon,
+            frontend,
+            clients,
+            port,
+            release_bind,
+            test_capture,
+            test_emulation,
             cert_path,
-            config_path,
-            config_toml,
         })
     }
 
-    /// the command to run
-    pub fn command(&self) -> Option<Command> {
-        self.args.command.clone()
-    }
-
-    pub fn config_path(&self) -> &Path {
-        &self.config_path
-    }
-
-    /// public key fingerprints authorized for connection
-    pub fn authorized_fingerprints(&self) -> HashMap<String, String> {
-        self.config_toml
-            .as_ref()
-            .and_then(|c| c.authorized_fingerprints.clone())
-            .unwrap_or_default()
-    }
-
-    /// path to certificate
-    pub fn cert_path(&self) -> &Path {
-        &self.cert_path
-    }
-
-    /// optional input-capture backend override
-    pub fn capture_backend(&self) -> Option<CaptureBackend> {
-        self.args
-            .capture_backend
-            .or(self.config_toml.as_ref().and_then(|c| c.capture_backend))
-    }
-
-    /// optional input-emulation backend override
-    pub fn emulation_backend(&self) -> Option<EmulationBackend> {
-        self.args
-            .emulation_backend
-            .or(self.config_toml.as_ref().and_then(|c| c.emulation_backend))
-    }
-
-    /// the port to use (initially)
-    pub fn port(&self) -> u16 {
-        self.args
-            .port
-            .or(self.config_toml.as_ref().and_then(|c| c.port))
-            .unwrap_or(DEFAULT_PORT)
-    }
-
-    /// list of configured clients
-    pub fn clients(&self) -> Vec<ConfigClient> {
-        self.config_toml
-            .as_ref()
-            .map(|c| c.clients.clone())
-            .unwrap_or_default()
-            .into_iter()
-            .flatten()
-            .map(From::<TomlClient>::from)
+    pub fn get_clients(&self) -> Vec<ConfigClient> {
+        self.clients
+            .iter()
+            .map(|(c, pos)| {
+                let port = c.port.unwrap_or(DEFAULT_PORT);
+                let ips: HashSet<IpAddr> = if let Some(ips) = c.ips.as_ref() {
+                    HashSet::from_iter(ips.iter().cloned())
+                } else {
+                    HashSet::new()
+                };
+                let hostname = match &c.hostname {
+                    Some(h) => Some(h.clone()),
+                    None => c.host_name.clone(),
+                };
+                let active = c.activate_on_startup.unwrap_or(false);
+                let enter_hook = c.enter_hook.clone();
+                ConfigClient {
+                    ips,
+                    hostname,
+                    port,
+                    pos: *pos,
+                    active,
+                    enter_hook,
+                }
+            })
             .collect()
     }
-
-    /// release bind for returning control to the host
-    pub fn release_bind(&self) -> Vec<scancode::Linux> {
-        self.config_toml
-            .as_ref()
-            .and_then(|c| c.release_bind.clone())
-            .unwrap_or(Vec::from_iter(DEFAULT_RELEASE_KEYS.iter().cloned()))
-    }
 }

src/emulation.rs

@@ -1,4 +1,4 @@
-use crate::listen::{LanMouseListener, ListenEvent, ListenerCreationError};
+use crate::listen::{LanMouseListener, ListenerCreationError};
 use futures::StreamExt;
 use input_emulation::{EmulationHandle, InputEmulation, InputEmulationError};
 use input_event::Event;
@@ -24,15 +24,8 @@ pub(crate) struct Emulation {
 }
 
 pub(crate) enum EmulationEvent {
-    Connected {
-        addr: SocketAddr,
-        fingerprint: String,
-    },
-    ConnectionAttempt {
-        fingerprint: String,
-    },
     /// new connection
-    Entered {
+    Connected {
         /// address of the connection
         addr: SocketAddr,
         /// position of the connection
@@ -41,9 +34,7 @@ pub(crate) enum EmulationEvent {
         fingerprint: String,
     },
     /// connection closed
-    Disconnected {
-        addr: SocketAddr,
-    },
+    Disconnected { addr: SocketAddr },
     /// the port of the listener has changed
     PortChanged(Result<u16, ListenerCreationError>),
     /// emulation was disabled
@@ -130,36 +121,31 @@ impl ListenTask {
         let mut last_response = HashMap::new();
         loop {
             select! {
-                e = self.listener.next() => {match e {
-                    Some(ListenEvent::Msg { event, addr }) => {
-                        log::trace!("{event} <-<-<-<-<- {addr}");
-                        last_response.insert(addr, Instant::now());
-                        match event {
-                            ProtoEvent::Enter(pos) => {
-                                if let Some(fingerprint) = self.listener.get_certificate_fingerprint(addr).await {
-                                    log::info!("releasing capture: {addr} entered this device");
-                                    self.event_tx.send(EmulationEvent::ReleaseNotify).expect("channel closed");
-                                    self.listener.reply(addr, ProtoEvent::Ack(0)).await;
-                                    self.event_tx.send(EmulationEvent::Entered{addr, pos: to_ipc_pos(pos), fingerprint}).expect("channel closed");
-                                }
-                            }
-                            ProtoEvent::Leave(_) => {
-                                self.emulation_proxy.remove(addr);
+                e = self.listener.next() =>  {
+                    let (event, addr) = match e {
+                        Some(e) => e,
+                        None => break,
+                    };
+                    log::trace!("{event} <-<-<-<-<- {addr}");
+                    last_response.insert(addr, Instant::now());
+                    match event {
+                        ProtoEvent::Enter(pos) => {
+                            if let Some(fingerprint) = self.listener.get_certificate_fingerprint(addr).await {
+                                log::info!("releasing capture: {addr} entered this device");
+                                self.event_tx.send(EmulationEvent::ReleaseNotify).expect("channel closed");
                                 self.listener.reply(addr, ProtoEvent::Ack(0)).await;
+                                self.event_tx.send(EmulationEvent::Connected{addr, pos: to_ipc_pos(pos), fingerprint}).expect("channel closed");
                             }
-                            ProtoEvent::Input(event) => self.emulation_proxy.consume(event, addr),
-                            ProtoEvent::Ping => self.listener.reply(addr, ProtoEvent::Pong(self.emulation_proxy.emulation_active.get())).await,
-                            _ => {}
                         }
+                        ProtoEvent::Leave(_) => {
+                            self.emulation_proxy.remove(addr);
+                            self.listener.reply(addr, ProtoEvent::Ack(0)).await;
+                        }
+                        ProtoEvent::Input(event) => self.emulation_proxy.consume(event, addr),
+                        ProtoEvent::Ping => self.listener.reply(addr, ProtoEvent::Pong(self.emulation_proxy.emulation_active.get())).await,
+                        _ => {}
                     }
-                    Some(ListenEvent::Accept { addr, fingerprint }) => {
-                        self.event_tx.send(EmulationEvent::Connected { addr, fingerprint }).expect("channel closed");
-                    }
-                    Some(ListenEvent::Rejected { fingerprint }) => {
-                        self.event_tx.send(EmulationEvent::ConnectionAttempt { fingerprint }).expect("channel closed");
-                    }
-                    None => break
-                }}
+                }
                 event = self.emulation_proxy.event() => {
                     self.event_tx.send(event).expect("channel closed");
                 }

src/emulation_test.rs

@@ -1,5 +1,4 @@
 use crate::config::Config;
-use clap::Args;
 use input_emulation::{InputEmulation, InputEmulationError};
 use input_event::{Event, PointerEvent};
 use std::f64::consts::PI;
@@ -8,20 +7,10 @@ use std::time::{Duration, Instant};
 const FREQUENCY_HZ: f64 = 1.0;
 const RADIUS: f64 = 100.0;
 
-#[derive(Args, Clone, Debug, Eq, PartialEq)]
-pub struct TestEmulationArgs {
-    #[arg(long)]
-    mouse: bool,
-    #[arg(long)]
-    keyboard: bool,
-    #[arg(long)]
-    scroll: bool,
-}
-
-pub async fn run(config: Config, _args: TestEmulationArgs) -> Result<(), InputEmulationError> {
+pub async fn run(config: Config) -> Result<(), InputEmulationError> {
     log::info!("running input emulation test");
 
-    let backend = config.emulation_backend().map(|b| b.into());
+    let backend = config.emulation_backend.map(|b| b.into());
     let mut emulation = InputEmulation::new(backend).await?;
     emulation.create(0).await;
 

src/listen.rs

@@ -3,15 +3,15 @@ use lan_mouse_proto::{ProtoEvent, MAX_EVENT_SIZE};
 use local_channel::mpsc::{channel, Receiver, Sender};
 use rustls::pki_types::CertificateDer;
 use std::{
-    collections::{HashMap, VecDeque},
+    collections::HashMap,
     net::SocketAddr,
     rc::Rc,
-    sync::{Arc, Mutex, RwLock},
+    sync::{Arc, RwLock},
     time::Duration,
 };
 use thiserror::Error;
 use tokio::{
-    sync::Mutex as AsyncMutex,
+    sync::Mutex,
     task::{spawn_local, JoinHandle},
 };
 use webrtc_dtls::{
@@ -34,25 +34,11 @@ pub enum ListenerCreationError {
 
 type ArcConn = Arc<dyn Conn + Send + Sync>;
 
-pub(crate) enum ListenEvent {
-    Msg {
-        event: ProtoEvent,
-        addr: SocketAddr,
-    },
-    Accept {
-        addr: SocketAddr,
-        fingerprint: String,
-    },
-    Rejected {
-        fingerprint: String,
-    },
-}
-
 pub(crate) struct LanMouseListener {
-    listen_rx: Receiver<ListenEvent>,
-    listen_tx: Sender<ListenEvent>,
+    listen_rx: Receiver<(ProtoEvent, SocketAddr)>,
+    listen_tx: Sender<(ProtoEvent, SocketAddr)>,
     listen_task: JoinHandle<()>,
-    conns: Rc<AsyncMutex<Vec<(SocketAddr, ArcConn)>>>,
+    conns: Rc<Mutex<Vec<(SocketAddr, ArcConn)>>>,
     request_port_change: Sender<u16>,
     port_changed: Receiver<Result<u16, ListenerCreationError>>,
 }
@@ -72,35 +58,26 @@ impl LanMouseListener {
         let (listen_tx, listen_rx) = channel();
         let (request_port_change, mut request_port_change_rx) = channel();
         let (port_changed_tx, port_changed) = channel();
-        let connection_attempts: Arc<Mutex<VecDeque<String>>> = Default::default();
 
         let authorized = authorized_keys.clone();
-        let verify_peer_certificate: Option<VerifyPeerCertificateFn> = {
-            let connection_attempts = connection_attempts.clone();
-            Some(Arc::new(
-                move |certs: &[Vec<u8>], _chains: &[CertificateDer<'static>]| {
-                    assert!(certs.len() == 1);
-                    let fingerprints = certs
-                        .iter()
-                        .map(|c| crypto::generate_fingerprint(c))
-                        .collect::<Vec<_>>();
-                    if authorized
-                        .read()
-                        .expect("lock")
-                        .contains_key(&fingerprints[0])
-                    {
-                        Ok(())
-                    } else {
-                        let fingerprint = fingerprints.into_iter().next().expect("fingerprint");
-                        connection_attempts
-                            .lock()
-                            .expect("lock")
-                            .push_back(fingerprint);
-                        Err(webrtc_dtls::Error::ErrVerifyDataMismatch)
-                    }
-                },
-            ))
-        };
+        let verify_peer_certificate: Option<VerifyPeerCertificateFn> = Some(Arc::new(
+            move |certs: &[Vec<u8>], _chains: &[CertificateDer<'static>]| {
+                assert!(certs.len() == 1);
+                let fingerprints = certs
+                    .iter()
+                    .map(|c| crypto::generate_fingerprint(c))
+                    .collect::<Vec<_>>();
+                if authorized
+                    .read()
+                    .expect("lock")
+                    .contains_key(&fingerprints[0])
+                {
+                    Ok(())
+                } else {
+                    Err(webrtc_dtls::Error::ErrVerifyDataMismatch)
+                }
+            },
+        ));
         let cfg = Config {
             certificates: vec![cert.clone()],
             extended_master_secret: ExtendedMasterSecretType::Require,
@@ -112,69 +89,43 @@ impl LanMouseListener {
         let listen_addr = SocketAddr::new("0.0.0.0".parse().expect("invalid ip"), port);
         let mut listener = listen(listen_addr, cfg.clone()).await?;
 
-        let conns: Rc<AsyncMutex<Vec<(SocketAddr, ArcConn)>>> =
-            Rc::new(AsyncMutex::new(Vec::new()));
+        let conns: Rc<Mutex<Vec<(SocketAddr, ArcConn)>>> = Rc::new(Mutex::new(Vec::new()));
 
         let conns_clone = conns.clone();
-        let listen_task: JoinHandle<()> = {
-            let listen_tx = listen_tx.clone();
-            let connection_attempts = connection_attempts.clone();
-            spawn_local(async move {
-                loop {
-                    let sleep = tokio::time::sleep(Duration::from_secs(2));
-                    tokio::select! {
-                        /* workaround for https://github.com/webrtc-rs/webrtc/issues/614 */
-                        _ = sleep => continue,
-                        c = listener.accept() => match c {
-                            Ok((conn, addr)) => {
-                                log::info!("dtls client connected, ip: {addr}");
-                                let mut conns = conns_clone.lock().await;
-                                conns.push((addr, conn.clone()));
-                                let dtls_conn: &DTLSConn = conn.as_any().downcast_ref().expect("dtls conn");
-                                let certs = dtls_conn.connection_state().await.peer_certificates;
-                                let cert = certs.first().expect("cert");
-                                let fingerprint = crypto::generate_fingerprint(cert);
-                                listen_tx.send(ListenEvent::Accept { addr, fingerprint }).expect("channel closed");
-                                spawn_local(read_loop(conns_clone.clone(), addr, conn, listen_tx.clone()));
-                            },
-                            Err(e) => {
-                                if let Error::Std(ref e) = e {
-                                    if let Some(e) = e.0.downcast_ref::<webrtc_dtls::Error>() {
-                                        match e {
-                                            webrtc_dtls::Error::ErrVerifyDataMismatch => {
-                                                if let Some(fingerprint) = connection_attempts.lock().expect("lock").pop_front() {
-                                                    listen_tx.send(ListenEvent::Rejected { fingerprint }).expect("channel closed");
-                                                }
-                                            }
-                                            _ => log::warn!("accept: {e}"),
-                                        }
-                                    } else {
-                                        log::warn!("accept: {e:?}");
-                                    }
-                                } else {
-                                    log::warn!("accept: {e:?}");
-                                }
+        let tx = listen_tx.clone();
+        let listen_task: JoinHandle<()> = spawn_local(async move {
+            loop {
+                let sleep = tokio::time::sleep(Duration::from_secs(2));
+                tokio::select! {
+                    /* workaround for https://github.com/webrtc-rs/webrtc/issues/614 */
+                    _ = sleep => continue,
+                    c = listener.accept() => match c {
+                        Ok((conn, addr)) => {
+                            log::info!("dtls client connected, ip: {addr}");
+                            let mut conns = conns_clone.lock().await;
+                            conns.push((addr, conn.clone()));
+                            spawn_local(read_loop(conns_clone.clone(), addr, conn, tx.clone()));
+                        },
+                        Err(e) => log::warn!("accept: {e}"),
+                    },
+                    port = request_port_change_rx.recv() => {
+                        let port = port.expect("channel closed");
+                        let listen_addr = SocketAddr::new("0.0.0.0".parse().expect("invalid ip"), port);
+                        match listen(listen_addr, cfg.clone()).await {
+                            Ok(new_listener) => {
+                                let _ = listener.close().await;
+                                listener = new_listener;
+                                port_changed_tx.send(Ok(port)).expect("channel closed");
                             }
-                        },
-                        port = request_port_change_rx.recv() => {
-                            let port = port.expect("channel closed");
-                            let listen_addr = SocketAddr::new("0.0.0.0".parse().expect("invalid ip"), port);
-                            match listen(listen_addr, cfg.clone()).await {
-                                Ok(new_listener) => {
-                                    let _ = listener.close().await;
-                                    listener = new_listener;
-                                    port_changed_tx.send(Ok(port)).expect("channel closed");
-                                }
-                                Err(e) => {
-                                    log::warn!("unable to change port: {e}");
-                                    port_changed_tx.send(Err(e.into())).expect("channel closed");
-                                }
-                            };
-                        },
-                    };
-                }
-            })
-        };
+                            Err(e) => {
+                                log::warn!("unable to change port: {e}");
+                                port_changed_tx.send(Err(e.into())).expect("channel closed");
+                            }
+                        };
+                    },
+                };
+            }
+        });
 
         Ok(Self {
             conns,
@@ -235,7 +186,7 @@ impl LanMouseListener {
 }
 
 impl Stream for LanMouseListener {
-    type Item = ListenEvent;
+    type Item = (ProtoEvent, SocketAddr);
 
     fn poll_next(
         mut self: std::pin::Pin<&mut Self>,
@@ -246,18 +197,16 @@ impl Stream for LanMouseListener {
 }
 
 async fn read_loop(
-    conns: Rc<AsyncMutex<Vec<(SocketAddr, ArcConn)>>>,
+    conns: Rc<Mutex<Vec<(SocketAddr, ArcConn)>>>,
     addr: SocketAddr,
     conn: ArcConn,
-    dtls_tx: Sender<ListenEvent>,
+    dtls_tx: Sender<(ProtoEvent, SocketAddr)>,
 ) -> Result<(), Error> {
     let mut b = [0u8; MAX_EVENT_SIZE];
 
     while conn.recv(&mut b).await.is_ok() {
         match b.try_into() {
-            Ok(event) => dtls_tx
-                .send(ListenEvent::Msg { event, addr })
-                .expect("channel closed"),
+            Ok(event) => dtls_tx.send((event, addr)).expect("channel closed"),
             Err(e) => {
                 log::warn!("error receiving event: {e}");
                 break;

src/main.rs

@@ -3,18 +3,15 @@ use input_capture::InputCaptureError;
 use input_emulation::InputEmulationError;
 use lan_mouse::{
     capture_test,
-    config::{self, Command, Config, ConfigError},
+    config::{Config, ConfigError, Frontend},
     emulation_test,
     service::{Service, ServiceError},
 };
-use lan_mouse_cli::CliError;
-#[cfg(feature = "gtk")]
-use lan_mouse_gtk::GtkError;
 use lan_mouse_ipc::{IpcError, IpcListenerCreationError};
 use std::{
     future::Future,
     io,
-    process::{self, Child},
+    process::{self, Child, Command},
 };
 use thiserror::Error;
 use tokio::task::LocalSet;
@@ -33,11 +30,6 @@ enum LanMouseError {
     Capture(#[from] InputCaptureError),
     #[error(transparent)]
     Emulation(#[from] InputEmulationError),
-    #[cfg(feature = "gtk")]
-    #[error(transparent)]
-    Gtk(#[from] GtkError),
-    #[error(transparent)]
-    Cli(#[from] CliError),
 }
 
 fn main() {
@@ -52,52 +44,35 @@ fn main() {
 }
 
 fn run() -> Result<(), LanMouseError> {
-    let config = config::Config::new()?;
-    match config.command() {
-        Some(command) => match command {
-            Command::TestEmulation(args) => run_async(emulation_test::run(config, args))?,
-            Command::TestCapture(args) => run_async(capture_test::run(config, args))?,
-            Command::Cli(cli_args) => run_async(lan_mouse_cli::run(cli_args))?,
-            Command::Daemon => {
-                // if daemon is specified we run the service
-                match run_async(run_service(config)) {
-                    Err(LanMouseError::Service(ServiceError::IpcListen(
-                        IpcListenerCreationError::AlreadyRunning,
-                    ))) => log::info!("service already running!"),
-                    r => r?,
-                }
-            }
-        },
-        None => {
-            //  otherwise start the service as a child process and
-            //  run a frontend
-            #[cfg(feature = "gtk")]
-            {
-                let mut service = start_service()?;
-                let res = lan_mouse_gtk::run();
-                #[cfg(unix)]
-                {
-                    // on unix we give the service a chance to terminate gracefully
-                    let pid = service.id() as libc::pid_t;
-                    unsafe {
-                        libc::kill(pid, libc::SIGINT);
-                    }
-                    service.wait()?;
-                }
-                service.kill()?;
-                res?;
-            }
-            #[cfg(not(feature = "gtk"))]
-            {
-                // run daemon if gtk is diabled
-                match run_async(run_service(config)) {
-                    Err(LanMouseError::Service(ServiceError::IpcListen(
-                        IpcListenerCreationError::AlreadyRunning,
-                    ))) => log::info!("service already running!"),
-                    r => r?,
-                }
-            }
+    // parse config file + cli args
+    let config = Config::new()?;
+    if config.test_capture {
+        run_async(capture_test::run(config))?;
+    } else if config.test_emulation {
+        run_async(emulation_test::run(config))?;
+    } else if config.daemon {
+        // if daemon is specified we run the service
+        match run_async(run_service(config)) {
+            Err(LanMouseError::Service(ServiceError::IpcListen(
+                IpcListenerCreationError::AlreadyRunning,
+            ))) => log::info!("service already running!"),
+            r => r?,
         }
+    } else {
+        //  otherwise start the service as a child process and
+        //  run a frontend
+        let mut service = start_service()?;
+        run_frontend(&config)?;
+        #[cfg(unix)]
+        {
+            // on unix we give the service a chance to terminate gracefully
+            let pid = service.id() as libc::pid_t;
+            unsafe {
+                libc::kill(pid, libc::SIGINT);
+            }
+            service.wait()?;
+        }
+        service.kill()?;
     }
 
     Ok(())
@@ -119,20 +94,33 @@ where
 }
 
 fn start_service() -> Result<Child, io::Error> {
-    let child = process::Command::new(std::env::current_exe()?)
+    let child = Command::new(std::env::current_exe()?)
         .args(std::env::args().skip(1))
-        .arg("daemon")
+        .arg("--daemon")
         .spawn()?;
     Ok(child)
 }
 
 async fn run_service(config: Config) -> Result<(), ServiceError> {
-    let release_bind = config.release_bind();
-    let config_path = config.config_path().to_owned();
+    log::info!("using config: {:?}", config.path);
+    log::info!("Press {:?} to release the mouse", config.release_bind);
     let mut service = Service::new(config).await?;
-    log::info!("using config: {config_path:?}");
-    log::info!("Press {release_bind:?} to release the mouse");
     service.run().await?;
     log::info!("service exited!");
     Ok(())
 }
+
+fn run_frontend(config: &Config) -> Result<(), IpcError> {
+    match config.frontend {
+        #[cfg(feature = "gtk")]
+        Frontend::Gtk => {
+            lan_mouse_gtk::run();
+        }
+        #[cfg(not(feature = "gtk"))]
+        Frontend::Gtk => panic!("gtk frontend requested but feature not enabled!"),
+        Frontend::Cli => {
+            lan_mouse_cli::run()?;
+        }
+    };
+    Ok(())
+}

src/service.rs

@@ -80,7 +80,7 @@ struct Incoming {
 impl Service {
     pub async fn new(config: Config) -> Result<Self, ServiceError> {
         let client_manager = ClientManager::default();
-        for client in config.clients() {
+        for client in config.get_clients() {
             let config = ClientConfig {
                 hostname: client.hostname,
                 fix_ips: client.ips.into_iter().collect(),
@@ -99,28 +99,28 @@ impl Service {
         }
 
         // load certificate
-        let cert = crypto::load_or_generate_key_and_cert(config.cert_path())?;
+        let cert = crypto::load_or_generate_key_and_cert(&config.cert_path)?;
         let public_key_fingerprint = crypto::certificate_fingerprint(&cert);
 
         // create frontend communication adapter, exit if already running
         let frontend_listener = AsyncFrontendListener::new().await?;
 
-        let authorized_keys = Arc::new(RwLock::new(config.authorized_fingerprints()));
+        let authorized_keys = Arc::new(RwLock::new(config.authorized_fingerprints.clone()));
         // listener + connection
         let listener =
-            LanMouseListener::new(config.port(), cert.clone(), authorized_keys.clone()).await?;
+            LanMouseListener::new(config.port, cert.clone(), authorized_keys.clone()).await?;
         let conn = LanMouseConnection::new(cert.clone(), client_manager.clone());
 
         // input capture + emulation
-        let capture_backend = config.capture_backend().map(|b| b.into());
-        let capture = Capture::new(capture_backend, conn, config.release_bind());
-        let emulation_backend = config.emulation_backend().map(|b| b.into());
+        let capture_backend = config.capture_backend.map(|b| b.into());
+        let capture = Capture::new(capture_backend, conn, config.release_bind.clone());
+        let emulation_backend = config.emulation_backend.map(|b| b.into());
         let emulation = Emulation::new(emulation_backend, listener);
 
         // create dns resolver
         let resolver = DnsResolver::new()?;
 
-        let port = config.port();
+        let port = config.port;
         let service = Self {
             capture,
             emulation,
@@ -142,15 +142,11 @@ impl Service {
     }
 
     pub async fn run(&mut self) -> Result<(), ServiceError> {
-        let active = self.client_manager.active_clients();
-        for handle in active.iter() {
+        for handle in self.client_manager.active_clients() {
             // small hack: `activate_client()` checks, if the client
             // is already active in client_manager and does not create a
             // capture barrier in that case so we have to deactivate it first
-            self.client_manager.deactivate_client(*handle);
-        }
-
-        for handle in active {
+            self.client_manager.deactivate_client(handle);
             self.activate_client(handle);
         }
 
@@ -197,9 +193,6 @@ impl Service {
             FrontendRequest::ResolveDns(handle) => self.resolve(handle),
             FrontendRequest::Sync => self.sync_frontend(),
             FrontendRequest::RemoveAuthorizedKey(key) => self.remove_authorized_key(key),
-            FrontendRequest::UpdateEnterHook(handle, enter_hook) => {
-                self.update_enter_hook(handle, enter_hook)
-            }
         }
     }
 
@@ -211,10 +204,7 @@ impl Service {
 
     fn handle_emulation_event(&mut self, event: EmulationEvent) {
         match event {
-            EmulationEvent::ConnectionAttempt { fingerprint } => {
-                self.notify_frontend(FrontendEvent::ConnectionAttempt { fingerprint });
-            }
-            EmulationEvent::Entered {
+            EmulationEvent::Connected {
                 addr,
                 pos,
                 fingerprint,
@@ -222,11 +212,7 @@ impl Service {
                 // check if already registered
                 if !self.incoming_conns.contains(&addr) {
                     self.add_incoming(addr, pos, fingerprint.clone());
-                    self.notify_frontend(FrontendEvent::DeviceEntered {
-                        fingerprint,
-                        addr,
-                        pos,
-                    });
+                    self.notify_frontend(FrontendEvent::IncomingConnected(fingerprint, addr, pos));
                 } else {
                     self.update_incoming(addr, pos, fingerprint);
                 }
@@ -253,9 +239,6 @@ impl Service {
                 self.notify_frontend(FrontendEvent::EmulationStatus(self.emulation_status));
             }
             EmulationEvent::ReleaseNotify => self.capture.release(),
-            EmulationEvent::Connected { addr, fingerprint } => {
-                self.notify_frontend(FrontendEvent::DeviceConnected { addr, fingerprint });
-            }
         }
     }
 
@@ -357,11 +340,7 @@ impl Service {
             self.remove_incoming(addr);
             self.add_incoming(addr, pos, fingerprint.clone());
             self.notify_frontend(FrontendEvent::IncomingDisconnected(addr));
-            self.notify_frontend(FrontendEvent::DeviceEntered {
-                fingerprint,
-                addr,
-                pos,
-            });
+            self.notify_frontend(FrontendEvent::IncomingConnected(fingerprint, addr, pos));
         }
     }
 
@@ -497,11 +476,6 @@ impl Service {
         self.broadcast_client(handle);
     }
 
-    fn update_enter_hook(&mut self, handle: ClientHandle, enter_hook: Option<String>) {
-        self.client_manager.set_enter_hook(handle, enter_hook);
-        self.broadcast_client(handle);
-    }
-
     fn broadcast_client(&mut self, handle: ClientHandle) {
         let event = self
             .client_manager