Graceful termination

CHANGELOG.md

@@ -12,7 +12,8 @@ All Sniffnet releases with the relative changes are documented in this file.
 - Added Uzbek translation 🇺🇿 ([#385](https://github.com/GyulyVGC/sniffnet/pull/385))
 - Window size and position are now remembered, so that Sniffnet can reopen with the same window properties
 - Users can now provide custom paths for MMDB files to allow using the commercial versions of the country and ASN databases (fixes [#243](https://github.com/GyulyVGC/sniffnet/issues/243))
-- The app's configurations are now stored only on application close, instead of needlessly store them each time the settings popup is closed
+- Added new command line option `--restore-default` to restore the default configurations of the app (settings, window properties, and device selected at startup)
+- The app's configurations are now stored only on application close, instead of needlessly store them each time the settings popup is closed ([#420](https://github.com/GyulyVGC/sniffnet/pull/420))
 - The textual output report is not generated anymore
 - Settings "Language" tab has been removed. Language selection and other options are now included in a new settings tab "General" ([#365](https://github.com/GyulyVGC/sniffnet/pull/365))
 - Updated Portuguese translation to v1.2 ([#398](https://github.com/GyulyVGC/sniffnet/pull/398))

Cargo.toml

@@ -47,6 +47,7 @@ rodio = { version = "0.17.3", default_features = false, features = ["mp3"] }
 dns-lookup = "2.0.4"
 toml = "0.8.8"
 once_cell = "1.19.0"
+ctrlc = { version = "3.4.2", features = ["termination"] }
 
 [target.'cfg(not(target_arch = "powerpc64"))'.dependencies]
 reqwest = { version = "0.11.23", default-features = false, features = ["json", "blocking", "rustls-tls"] }
@@ -59,6 +60,7 @@ reqwest = { version = "0.11.23", features = ["json", "blocking"] }
 [dev-dependencies]
 serde_test = "1.0.176"
 rstest = "0.18.2"
+serial_test = { version = "2.0.0", default_features = false }
 
 #───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
 

src/cli/mod.rs

@@ -1,4 +1,5 @@
 use crate::utils::formatted_strings::APP_VERSION;
+use crate::{Configs, SNIFFNET_LOWERCASE};
 
 /// Parse CLI arguments, and exit if `--help`, `--version`, or an
 /// unknown argument was supplied
@@ -8,6 +9,7 @@ pub fn parse_cli_args() {
         match arg.as_str() {
             "--help" | "-h" => print_help(),
             "--version" | "-v" => print_version(),
+            "--restore-default" => restore_default(),
             _ => {
                 unknown_argument(&arg);
                 std::process::exit(1);
@@ -20,21 +22,91 @@ pub fn parse_cli_args() {
 fn print_help() {
     println!(
         "Application to comfortably monitor your Internet traffic\n\
-        Usage: sniffnet [OPTIONS]\n\
+        Usage: {SNIFFNET_LOWERCASE} [OPTIONS]\n\
         Options:\n\
-        \t-h, --help      Print help\n\
-        \t-v, --version   Print version info\n\
+        \t-h, --help            Print help\n\
+        \t--restore-default     Restore default settings\n\
+        \t-v, --version         Print version info\n\
         (Run without options to start the app)"
     );
 }
 
 fn print_version() {
-    println!("sniffnet {APP_VERSION}");
+    println!("{SNIFFNET_LOWERCASE} {APP_VERSION}");
+}
+
+fn restore_default() {
+    Configs::default().store();
+    println!("Default settings have been restored");
 }
 
 fn unknown_argument(arg: &str) {
     eprintln!(
-        "sniffnet: unknown option '{arg}'\n\
-        For more information, try 'sniffnet --help'"
+        "{SNIFFNET_LOWERCASE}: unknown option '{arg}'\n\
+        For more information, try '{SNIFFNET_LOWERCASE} --help'"
     );
 }
+
+#[cfg(test)]
+mod tests {
+    use std::sync::{Arc, Mutex};
+
+    use serial_test::serial;
+
+    use crate::gui::styles::types::custom_palette::ExtraStyles;
+    use crate::gui::styles::types::gradient_type::GradientType;
+    use crate::notifications::types::notifications::Notifications;
+    use crate::{ConfigDevice, ConfigSettings, ConfigWindow, Language, Sniffer, StyleType};
+
+    use super::*;
+
+    #[test]
+    #[serial]
+    fn test_restore_default_configs() {
+        // initial configs stored are the default ones
+        assert_eq!(Configs::load(), Configs::default());
+        let modified_configs = Configs {
+            settings: ConfigSettings {
+                color_gradient: GradientType::Wild,
+                language: Language::ZH,
+                scale_factor: 0.65,
+                mmdb_country: "countrymmdb".to_string(),
+                mmdb_asn: "asnmmdb".to_string(),
+                style_path: format!(
+                    "{}/resources/themes/catppuccin.toml",
+                    env!("CARGO_MANIFEST_DIR")
+                ),
+                notifications: Notifications {
+                    volume: 100,
+                    packets_notification: Default::default(),
+                    bytes_notification: Default::default(),
+                    favorite_notification: Default::default(),
+                },
+                style: StyleType::Custom(ExtraStyles::DraculaDark),
+            },
+            device: ConfigDevice {
+                device_name: "hey-hey".to_string(),
+            },
+            window: ConfigWindow {
+                position: (440, 99),
+                size: (452, 870),
+            },
+        };
+        // we want to be sure that modified config is different from defaults
+        assert_ne!(Configs::default(), modified_configs);
+        //store modified configs
+        modified_configs.clone().store();
+        // assert they've been stored
+        assert_eq!(Configs::load(), modified_configs);
+        // restore defaults
+        restore_default();
+        // assert that defaults are stored
+        assert_eq!(Configs::load(), Configs::default());
+
+        // only needed because it will delete config files via its Drop implementation
+        Sniffer::new(
+            &Arc::new(Mutex::new(Configs::default())),
+            Arc::new(Mutex::new(Some(true))),
+        );
+    }
+}