fix toml save/load

Cargo.toml

@@ -10,15 +10,15 @@ async-stream = "0.3.3"
 clap = { version = "4.0.2", features = ["derive"] }
 ctrlc = "3.2.3"
 fast-socks5 = "0.8.1"
-flexi_logger = { version = "0.23.3", features = ["specfile_without_notification", "async"] }
+flexi_logger = { version = "0.25.5", features = ["specfile_without_notification", "async"] }
 log = "0.4.17"
 serde = { version = "1.0.145", features = ["derive"] }
 serde_derive = "1.0.145"
 tokio = { version = "1.24.1", features = ["io-std", "net", "rt-multi-thread", "macros"] }
 tokio-stream = "0.1.11"
 tokio-util = "0.7.4"
-toml = "0.5.9"
-windows-service = "0.5.0"
+toml = "0.7.4"
+windows-service = "0.6.0"
 
 [profile.release]
 opt-level = 3

src/config.rs

@@ -66,11 +66,12 @@ impl Default for Config {
 impl Config {
     const FILENAME: &'static str = "config.toml";
     fn read<P: AsRef<Path>>(path: P) -> Result<Self, String> {
-        let data = fs::read(path).map_err(|e| format!("can't read config: {:?}", e))?;
-        toml::from_slice(&data).map_err(|e| format!("can't parse config: {:?}", e))
+        let data = fs::read_to_string(path).map_err(|e| format!("can't read config: {:?}", e))?;
+        toml::from_str(&data).map_err(|e| format!("can't parse config: {:?}", e))
     }
     fn write<P: AsRef<Path>>(&self, path: P) -> Result<(), String> {
-        let data = toml::to_vec(&self).map_err(|e| format!("can't serialize config: {:?}", e))?;
+        let data = toml::to_string_pretty(&self)
+            .map_err(|e| format!("can't serialize config: {:?}", e))?;
         fs::write(path, &data).map_err(|e| format!("can't write config: {:?}", e))
     }
     fn file_location() -> Result<PathBuf, String> {