nevaforget
817a9547ad
Complete rewrite of the Wayland lockscreen from Python/PyGObject to Rust/gtk4-rs for memory safety in security-critical PAM code and consistency with the moonset/moongreet Rust ecosystem. Modules: main, lockscreen, auth (PAM FFI), fingerprint (fprintd D-Bus), config, i18n, users, power. 37 unit tests. Security: PAM conversation callback with Zeroizing password, panic hook that never unlocks, root check, ext-session-lock-v1 compositor policy, absolute loginctl path, avatar symlink rejection.
53 lines
2.1 KiB
Rust
53 lines
2.1 KiB
Rust
// ABOUTME: Power actions — reboot and shutdown via loginctl.
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// ABOUTME: Wrappers around system commands for the lockscreen UI.
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use std::fmt;
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use std::process::Command;
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#[derive(Debug)]
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pub enum PowerError {
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CommandFailed { action: &'static str, message: String },
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Timeout { action: &'static str },
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}
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impl fmt::Display for PowerError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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PowerError::CommandFailed { action, message } => write!(f, "{action} failed: {message}"),
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PowerError::Timeout { action } => write!(f, "{action} timed out"),
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}
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}
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}
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impl std::error::Error for PowerError {}
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fn run_command(action: &'static str, program: &str, args: &[&str]) -> Result<(), PowerError> {
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let child = Command::new(program)
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.args(args)
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.spawn()
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.map_err(|e| PowerError::CommandFailed { action, message: e.to_string() })?;
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let output = child.wait_with_output()
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.map_err(|e| PowerError::CommandFailed { action, message: e.to_string() })?;
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if !output.status.success() {
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let stderr = String::from_utf8_lossy(&output.stderr);
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return Err(PowerError::CommandFailed {
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action, message: format!("exit code {}: {}", output.status, stderr.trim()),
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});
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}
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Ok(())
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}
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pub fn reboot() -> Result<(), PowerError> { run_command("reboot", "/usr/bin/loginctl", &["reboot"]) }
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pub fn shutdown() -> Result<(), PowerError> { run_command("shutdown", "/usr/bin/loginctl", &["poweroff"]) }
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test] fn power_error_display() { assert_eq!(PowerError::CommandFailed { action: "reboot", message: "fail".into() }.to_string(), "reboot failed: fail"); }
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#[test] fn timeout_display() { assert_eq!(PowerError::Timeout { action: "shutdown" }.to_string(), "shutdown timed out"); }
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#[test] fn missing_binary() { assert!(run_command("test", "nonexistent-xyz", &[]).is_err()); }
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#[test] fn nonzero_exit() { assert!(run_command("test", "false", &[]).is_err()); }
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#[test] fn success() { assert!(run_command("test", "true", &[]).is_ok()); }
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}
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