refactor: migrate proxy functionality from nodecar to rust sidecar

src-tauri/src/proxy_storage.rs

@@ -0,0 +1,130 @@
+use directories::BaseDirs;
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::PathBuf;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ProxyConfig {
+  pub id: String,
+  pub upstream_url: String, // Can be "DIRECT" for direct proxy
+  pub local_port: Option<u16>,
+  pub ignore_proxy_certificate: Option<bool>,
+  pub local_url: Option<String>,
+  pub pid: Option<u32>,
+}
+
+impl ProxyConfig {
+  pub fn new(id: String, upstream_url: String, local_port: Option<u16>) -> Self {
+    Self {
+      id,
+      upstream_url,
+      local_port,
+      ignore_proxy_certificate: None,
+      local_url: None,
+      pid: None,
+    }
+  }
+}
+
+pub fn get_storage_dir() -> PathBuf {
+  let base_dirs = BaseDirs::new().expect("Failed to get base directories");
+  let mut path = base_dirs.data_local_dir().to_path_buf();
+  path.push(if cfg!(debug_assertions) {
+    "DonutBrowserDev"
+  } else {
+    "DonutBrowser"
+  });
+  path.push("proxies");
+  path
+}
+
+pub fn save_proxy_config(config: &ProxyConfig) -> Result<(), Box<dyn std::error::Error>> {
+  let storage_dir = get_storage_dir();
+  fs::create_dir_all(&storage_dir)?;
+
+  let file_path = storage_dir.join(format!("{}.json", config.id));
+  let content = serde_json::to_string_pretty(config)?;
+  fs::write(&file_path, content)?;
+
+  Ok(())
+}
+
+pub fn get_proxy_config(id: &str) -> Option<ProxyConfig> {
+  let storage_dir = get_storage_dir();
+  let file_path = storage_dir.join(format!("{}.json", id));
+
+  if !file_path.exists() {
+    return None;
+  }
+
+  match fs::read_to_string(&file_path) {
+    Ok(content) => serde_json::from_str(&content).ok(),
+    Err(_) => None,
+  }
+}
+
+pub fn delete_proxy_config(id: &str) -> bool {
+  let storage_dir = get_storage_dir();
+  let file_path = storage_dir.join(format!("{}.json", id));
+
+  if !file_path.exists() {
+    return false;
+  }
+
+  fs::remove_file(&file_path).is_ok()
+}
+
+pub fn list_proxy_configs() -> Vec<ProxyConfig> {
+  let storage_dir = get_storage_dir();
+
+  if !storage_dir.exists() {
+    return Vec::new();
+  }
+
+  let mut configs = Vec::new();
+  if let Ok(entries) = fs::read_dir(&storage_dir) {
+    for entry in entries.flatten() {
+      let path = entry.path();
+      if path.extension().is_some_and(|ext| ext == "json") {
+        if let Ok(content) = fs::read_to_string(&path) {
+          if let Ok(config) = serde_json::from_str::<ProxyConfig>(&content) {
+            configs.push(config);
+          }
+        }
+      }
+    }
+  }
+
+  configs
+}
+
+pub fn update_proxy_config(config: &ProxyConfig) -> bool {
+  let storage_dir = get_storage_dir();
+  let file_path = storage_dir.join(format!("{}.json", config.id));
+
+  if !file_path.exists() {
+    return false;
+  }
+
+  match serde_json::to_string_pretty(config) {
+    Ok(content) => fs::write(&file_path, content).is_ok(),
+    Err(_) => false,
+  }
+}
+
+pub fn generate_proxy_id() -> String {
+  format!(
+    "proxy_{}_{}",
+    std::time::SystemTime::now()
+      .duration_since(std::time::UNIX_EPOCH)
+      .unwrap()
+      .as_secs(),
+    rand::random::<u32>()
+  )
+}
+
+pub fn is_process_running(pid: u32) -> bool {
+  use sysinfo::{Pid, System};
+  let system = System::new_all();
+  system.process(Pid::from(pid as usize)).is_some()
+}