Adrian Cole
297 lines
11 KiB
Rust
297 lines
11 KiB
Rust
use crate::config::paths::Paths;
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use serde::{Deserialize, Serialize};
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use std::collections::HashMap;
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use std::fs;
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use std::path::{Path, PathBuf};
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use std::sync::{Arc, LazyLock, RwLock};
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use utoipa::ToSchema;
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const PERMISSION_FILE: &str = "permission.yaml";
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static PERMISSION_MANAGER: LazyLock<Arc<PermissionManager>> =
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LazyLock::new(|| Arc::new(PermissionManager::new(Paths::config_dir())));
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/// Enum representing the possible permission levels for a tool.
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#[derive(Debug, Deserialize, Serialize, Clone, PartialEq, Eq, ToSchema)]
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#[serde(rename_all = "snake_case")]
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pub enum PermissionLevel {
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AlwaysAllow, // Tool can always be used without prompt
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AskBefore, // Tool requires permission to be granted before use
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NeverAllow, // Tool is never allowed to be used
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}
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/// Struct representing the configuration of permissions, categorized by level.
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#[derive(Debug, Deserialize, Serialize, Default, Clone)]
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pub struct PermissionConfig {
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pub always_allow: Vec<String>, // List of tools that are always allowed
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pub ask_before: Vec<String>, // List of tools that require user consent
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pub never_allow: Vec<String>, // List of tools that are never allowed
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}
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/// PermissionManager manages permission configurations for various tools.
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#[derive(Debug)]
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pub struct PermissionManager {
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config_path: PathBuf,
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permission_map: RwLock<HashMap<String, PermissionConfig>>,
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}
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// Constants representing specific permission categories
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const USER_PERMISSION: &str = "user";
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const SMART_APPROVE_PERMISSION: &str = "smart_approve";
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impl PermissionManager {
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pub fn new(config_dir: PathBuf) -> Self {
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let permission_path = config_dir.join(PERMISSION_FILE);
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let permission_map = if permission_path.exists() {
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let file_contents =
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fs::read_to_string(&permission_path).expect("Failed to read permission.yaml");
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serde_yaml::from_str(&file_contents).unwrap_or_else(|_| HashMap::new())
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} else {
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// Consolidate directory creation for re-use in global singleton or ACP.
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fs::create_dir_all(&config_dir).expect("Failed to create config directory");
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HashMap::new()
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};
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PermissionManager {
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config_path: permission_path,
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permission_map: RwLock::new(permission_map),
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}
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}
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pub fn instance() -> Arc<PermissionManager> {
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Arc::clone(&PERMISSION_MANAGER)
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}
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/// Returns a list of all the names (keys) in the permission map.
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pub fn get_permission_names(&self) -> Vec<String> {
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self.permission_map
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.read()
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.unwrap()
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.keys()
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.cloned()
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.collect()
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}
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/// Retrieves the user permission level for a specific tool.
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pub fn get_user_permission(&self, principal_name: &str) -> Option<PermissionLevel> {
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self.get_permission(USER_PERMISSION, principal_name)
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}
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/// Retrieves the smart approve permission level for a specific tool.
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pub fn get_smart_approve_permission(&self, principal_name: &str) -> Option<PermissionLevel> {
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self.get_permission(SMART_APPROVE_PERMISSION, principal_name)
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}
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/// Retrieves the config file path.
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pub fn get_config_path(&self) -> &Path {
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self.config_path.as_path()
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}
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/// Helper function to retrieve the permission level for a specific permission category and tool.
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fn get_permission(&self, name: &str, principal_name: &str) -> Option<PermissionLevel> {
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let map = self.permission_map.read().unwrap();
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// Check if the permission category exists in the map
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if let Some(permission_config) = map.get(name) {
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// Check the permission levels for the given tool
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if permission_config
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.always_allow
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.contains(&principal_name.to_string())
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{
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return Some(PermissionLevel::AlwaysAllow);
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} else if permission_config
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.ask_before
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.contains(&principal_name.to_string())
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{
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return Some(PermissionLevel::AskBefore);
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} else if permission_config
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.never_allow
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.contains(&principal_name.to_string())
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{
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return Some(PermissionLevel::NeverAllow);
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}
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}
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None // Return None if no matching permission level is found
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}
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/// Updates the user permission level for a specific tool.
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pub fn update_user_permission(&self, principal_name: &str, level: PermissionLevel) {
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self.update_permission(USER_PERMISSION, principal_name, level)
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}
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/// Updates the smart approve permission level for a specific tool.
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pub fn update_smart_approve_permission(&self, principal_name: &str, level: PermissionLevel) {
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self.update_permission(SMART_APPROVE_PERMISSION, principal_name, level)
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}
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/// Helper function to update a permission level for a specific tool in a given permission category.
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fn update_permission(&self, name: &str, principal_name: &str, level: PermissionLevel) {
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let mut map = self.permission_map.write().unwrap();
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// Get or create a new PermissionConfig for the specified category
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let permission_config = map.entry(name.to_string()).or_default();
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// Remove the principal from all existing lists to avoid duplicates
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permission_config
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.always_allow
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.retain(|p| p != principal_name);
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permission_config.ask_before.retain(|p| p != principal_name);
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permission_config
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.never_allow
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.retain(|p| p != principal_name);
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// Add the principal to the appropriate list
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match level {
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PermissionLevel::AlwaysAllow => permission_config
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.always_allow
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.push(principal_name.to_string()),
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PermissionLevel::AskBefore => permission_config
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.ask_before
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.push(principal_name.to_string()),
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PermissionLevel::NeverAllow => permission_config
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.never_allow
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.push(principal_name.to_string()),
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}
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// Serialize the updated permission map and write it back to the config file
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let yaml_content =
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serde_yaml::to_string(&*map).expect("Failed to serialize permission config");
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fs::write(&self.config_path, yaml_content).expect("Failed to write to permission.yaml");
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}
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/// Removes all entries where the principal name starts with the given extension name.
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pub fn remove_extension(&self, extension_name: &str) {
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let mut map = self.permission_map.write().unwrap();
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for permission_config in map.values_mut() {
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permission_config
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.always_allow
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.retain(|p| !p.starts_with(extension_name));
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permission_config
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.ask_before
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.retain(|p| !p.starts_with(extension_name));
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permission_config
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.never_allow
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.retain(|p| !p.starts_with(extension_name));
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}
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let yaml_content =
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serde_yaml::to_string(&*map).expect("Failed to serialize permission config");
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fs::write(&self.config_path, yaml_content).expect("Failed to write to permission.yaml");
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use tempfile::TempDir;
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// Helper function to create a test instance of PermissionManager with a temp dir
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fn create_test_permission_manager() -> (PermissionManager, TempDir) {
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let temp_dir = TempDir::new().unwrap();
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let manager = PermissionManager::new(temp_dir.path().to_path_buf());
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(manager, temp_dir)
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}
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#[test]
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fn test_get_permission_names_empty() {
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let (manager, _temp_dir) = create_test_permission_manager();
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assert!(manager.get_permission_names().is_empty());
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}
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#[test]
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fn test_update_user_permission() {
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let (manager, _temp_dir) = create_test_permission_manager();
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manager.update_user_permission("tool1", PermissionLevel::AlwaysAllow);
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let permission = manager.get_user_permission("tool1");
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assert_eq!(permission, Some(PermissionLevel::AlwaysAllow));
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}
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#[test]
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fn test_update_smart_approve_permission() {
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let (manager, _temp_dir) = create_test_permission_manager();
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manager.update_smart_approve_permission("tool2", PermissionLevel::AskBefore);
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let permission = manager.get_smart_approve_permission("tool2");
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assert_eq!(permission, Some(PermissionLevel::AskBefore));
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}
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#[test]
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fn test_get_permission_not_found() {
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let (manager, _temp_dir) = create_test_permission_manager();
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let permission = manager.get_user_permission("non_existent_tool");
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assert_eq!(permission, None);
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}
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#[test]
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fn test_permission_levels() {
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let (manager, _temp_dir) = create_test_permission_manager();
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manager.update_user_permission("tool4", PermissionLevel::AlwaysAllow);
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manager.update_user_permission("tool5", PermissionLevel::AskBefore);
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manager.update_user_permission("tool6", PermissionLevel::NeverAllow);
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// Check the permission levels
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assert_eq!(
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manager.get_user_permission("tool4"),
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Some(PermissionLevel::AlwaysAllow)
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);
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assert_eq!(
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manager.get_user_permission("tool5"),
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Some(PermissionLevel::AskBefore)
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);
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assert_eq!(
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manager.get_user_permission("tool6"),
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Some(PermissionLevel::NeverAllow)
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);
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}
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#[test]
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fn test_permission_update_replaces_existing_level() {
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let (manager, _temp_dir) = create_test_permission_manager();
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// Initially AlwaysAllow
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manager.update_user_permission("tool7", PermissionLevel::AlwaysAllow);
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assert_eq!(
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manager.get_user_permission("tool7"),
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Some(PermissionLevel::AlwaysAllow)
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);
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// Now change to NeverAllow
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manager.update_user_permission("tool7", PermissionLevel::NeverAllow);
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assert_eq!(
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manager.get_user_permission("tool7"),
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Some(PermissionLevel::NeverAllow)
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);
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// Ensure it's removed from other levels
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let map = manager.permission_map.read().unwrap();
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let config = map.get(USER_PERMISSION).unwrap();
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assert!(!config.always_allow.contains(&"tool7".to_string()));
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assert!(!config.ask_before.contains(&"tool7".to_string()));
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assert!(config.never_allow.contains(&"tool7".to_string()));
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}
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#[test]
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fn test_remove_extension() {
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let (manager, _temp_dir) = create_test_permission_manager();
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manager.update_user_permission("prefix__tool1", PermissionLevel::AlwaysAllow);
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manager.update_user_permission("nonprefix__tool2", PermissionLevel::AlwaysAllow);
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manager.update_user_permission("prefix__tool3", PermissionLevel::AskBefore);
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// Remove entries starting with "prefix"
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manager.remove_extension("prefix");
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let map = manager.permission_map.read().unwrap();
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let config = map.get(USER_PERMISSION).unwrap();
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// Verify entries with "prefix" are removed
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assert!(!config.always_allow.contains(&"prefix__tool1".to_string()));
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assert!(!config.ask_before.contains(&"prefix__tool3".to_string()));
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// Verify other entries remain
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assert!(config
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.always_allow
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.contains(&"nonprefix__tool2".to_string()));
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}
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}
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