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* Profile Loader - loads profiles and presets from user config and built-in directory
*
* Two types of configurations:
* 1. Profiles (user-defined): Full configuration with host, auth, and settings
* Location: ~/.config/gitlab-mcp/profiles.yaml
*
* 2. Presets (built-in): Only settings/restrictions, NO host/auth
* Location: embedded in package (src/profiles/builtin/)
* Presets are applied ON TOP of existing environment configuration.
*
* SECURITY: Built-in presets NEVER contain host or auth to prevent
* accidental requests to wrong GitLab instances during testing.
*/
import * as fs from "fs";
import * as path from "path";
import * as os from "os";
import * as yaml from "yaml";
import {
Profile,
Preset,
ProfilesConfig,
ProfilesConfigSchema,
PresetSchema,
ProfileInfo,
ProfileValidationResult,
} from "./types";
import { logger } from "../logger";
// ============================================================================
// Constants
// ============================================================================
const USER_CONFIG_DIR = path.join(os.homedir(), ".config", "gitlab-mcp");
const USER_PROFILES_PATH = path.join(USER_CONFIG_DIR, "profiles.yaml");
/**
* Get the built-in presets directory path.
* Works in both compiled (dist/) and development (src/) environments.
* Tests always provide their own paths, so this is only used at runtime.
*
* Resolution order:
* 1. __dirname/builtin - works when installed from npm (dist/src/profiles/builtin)
* 2. process.cwd()/dist/src/profiles/builtin - compiled location from project root
* 3. process.cwd()/src/profiles/builtin - source location for development
*/
function getBuiltinDir(): string {
const candidates = [
// Primary: relative to this module (works when installed from npm)
path.join(__dirname, "builtin"),
// Fallback: compiled location from project root
path.join(process.cwd(), "dist", "src", "profiles", "builtin"),
// Fallback: source location for development
path.join(process.cwd(), "src", "profiles", "builtin"),
];
for (const dir of candidates) {
if (fs.existsSync(dir)) {
return dir;
}
}
// Return first candidate path for error message clarity
return candidates[0];
}
// ============================================================================
// Profile Loader Class
// ============================================================================
export class ProfileLoader {
private userConfigPath: string;
private builtinDir: string;
private profileCache: Map<string, Profile> = new Map();
private presetCache: Map<string, Preset> = new Map();
private configCache: ProfilesConfig | null = null;
constructor(userConfigPath: string = USER_PROFILES_PATH, builtinDir?: string) {
this.userConfigPath = userConfigPath;
this.builtinDir = builtinDir ?? getBuiltinDir();
}
/**
* Load a full profile by name (user profiles only)
* Full profiles include host and auth configuration.
*/
async loadProfile(name: string): Promise<Profile> {
// Check cache first
const cached = this.profileCache.get(name);
if (cached) {
return cached;
}
// Only user profiles are full profiles
const userProfile = await this.loadUserProfile(name);
if (userProfile) {
this.profileCache.set(name, userProfile);
return userProfile;
}
throw new Error(
`Profile '${name}' not found. Full profiles must be defined in user config. ` +
`For built-in presets (settings only), use loadPreset('${name}').`
);
}
/**
* Load a preset by name (built-in presets only)
* Presets contain only settings, NO host/auth.
*/
async loadPreset(name: string): Promise<Preset> {
// Check cache first
const cached = this.presetCache.get(name);
if (cached) {
return cached;
}
const preset = await this.loadBuiltinPreset(name);
if (preset) {
this.presetCache.set(name, preset);
return preset;
}
throw new Error(`Preset '${name}' not found in built-in presets`);
}
/**
* Load either a profile or preset by name
* Returns { type: 'profile', data: Profile } or { type: 'preset', data: Preset }
*/
async loadAny(
name: string
): Promise<{ type: "profile"; data: Profile } | { type: "preset"; data: Preset }> {
// Try user profile first
try {
const profile = await this.loadProfile(name);
return { type: "profile", data: profile };
} catch {
// Not a user profile, try preset
}
// Try built-in preset
const preset = await this.loadBuiltinPreset(name);
if (preset) {
return { type: "preset", data: preset };
}
throw new Error(
`'${name}' not found as user profile or built-in preset. ` +
`Use 'yarn list-tools --profiles' to see available options.`
);
}
/**
* Get the default profile name from user config
*/
async getDefaultProfileName(): Promise<string | undefined> {
const config = await this.loadUserConfig();
return config?.default_profile;
}
/**
* Load user profiles config file
*/
private async loadUserConfig(): Promise<ProfilesConfig | null> {
if (this.configCache !== null) {
return this.configCache;
}
if (!fs.existsSync(this.userConfigPath)) {
logger.debug({ path: this.userConfigPath }, "User profiles config not found");
return null;
}
try {
const content = fs.readFileSync(this.userConfigPath, "utf8");
const parsed = yaml.parse(content) as unknown;
const validated = ProfilesConfigSchema.parse(parsed);
this.configCache = validated;
logger.debug(
{ path: this.userConfigPath, profiles: Object.keys(validated.profiles) },
"Loaded user profiles config"
);
return validated;
} catch (error) {
const message = error instanceof Error ? error.message : String(error);
logger.error({ error: message, path: this.userConfigPath }, "Failed to parse user profiles");
throw new Error(`Invalid profiles config: ${message}`);
}
}
/**
* Load a specific profile from user config
*/
private async loadUserProfile(name: string): Promise<Profile | null> {
const config = await this.loadUserConfig();
return config?.profiles[name] ?? null;
}
/**
* Load a built-in preset by name
*/
private async loadBuiltinPreset(name: string): Promise<Preset | null> {
const presetPath = path.join(this.builtinDir, `${name}.yaml`);
if (!fs.existsSync(presetPath)) {
logger.debug({ name, path: presetPath }, "Built-in preset not found");
return null;
}
try {
const content = fs.readFileSync(presetPath, "utf8");
const parsed = yaml.parse(content) as unknown;
const validated = PresetSchema.parse(parsed);
logger.debug({ name }, "Loaded built-in preset");
return validated;
} catch (error) {
const message = error instanceof Error ? error.message : String(error);
logger.error({ error: message, name }, "Failed to parse built-in preset");
throw new Error(`Invalid built-in preset '${name}': ${message}`);
}
}
/**
* List all available profiles and presets
*/
async listProfiles(): Promise<ProfileInfo[]> {
const profiles: ProfileInfo[] = [];
// Load user profiles (full profiles with host/auth)
const userConfig = await this.loadUserConfig();
if (userConfig) {
for (const [name, profile] of Object.entries(userConfig.profiles)) {
profiles.push({
name,
host: profile.host,
authType: profile.auth.type,
readOnly: profile.read_only ?? false,
isBuiltIn: false,
isPreset: false,
});
}
}
// Load built-in presets (settings only, no host/auth)
if (fs.existsSync(this.builtinDir)) {
const files = fs.readdirSync(this.builtinDir).filter(f => f.endsWith(".yaml"));
for (const file of files) {
const name = path.basename(file, ".yaml");
try {
const preset = await this.loadBuiltinPreset(name);
Eif (preset) {
profiles.push({
name,
readOnly: preset.read_only ?? false,
isBuiltIn: true,
isPreset: true,
description: preset.description,
});
}
} catch {
// Skip invalid presets
logger.warn({ name }, "Skipping invalid built-in preset");
}
}
}
return profiles.sort((a, b) => {
// User profiles first, then presets
if (a.isPreset !== b.isPreset) {
return a.isPreset ? 1 : -1;
}
return a.name.localeCompare(b.name);
});
}
/**
* Validate denied_actions format (shared between profile and preset validation)
*/
private validateDeniedActions(
deniedActions: string[] | undefined,
errors: string[],
warnings: string[]
): void {
if (!deniedActions) return;
for (const action of deniedActions) {
const colonIndex = action.indexOf(":");
if (colonIndex === -1) {
errors.push(`Invalid denied_action format '${action}', expected 'tool:action'`);
} else {
const tool = action.slice(0, colonIndex).trim();
const act = action.slice(colonIndex + 1).trim();
if (!tool || !act) {
errors.push(`Invalid denied_action format '${action}', expected 'tool:action'`);
} else if (action !== `${tool}:${act}`) {
warnings.push(
`denied_action '${action}' has extra whitespace, normalized to '${tool}:${act}'`
);
}
}
}
}
/**
* Validate a full profile configuration
*/
async validateProfile(profile: Profile): Promise<ProfileValidationResult> {
const errors: string[] = [];
const warnings: string[] = [];
// Validate auth config
if (profile.auth.type === "pat" && profile.auth.token_env) {
if (!process.env[profile.auth.token_env]) {
warnings.push(`Environment variable '${profile.auth.token_env}' is not set`);
}
}
if (profile.auth.type === "oauth" && profile.auth.client_id_env) {
if (!process.env[profile.auth.client_id_env]) {
warnings.push(`Environment variable '${profile.auth.client_id_env}' is not set`);
}
}
if (profile.auth.type === "oauth" && profile.auth.client_secret_env) {
if (!process.env[profile.auth.client_secret_env]) {
warnings.push(`Environment variable '${profile.auth.client_secret_env}' is not set`);
}
}
// Validate cookie auth path
if (
profile.auth.type === "cookie" &&
"cookie_path" in profile.auth &&
profile.auth.cookie_path
) {
if (!fs.existsSync(profile.auth.cookie_path)) {
errors.push(`Cookie file not found: ${profile.auth.cookie_path}`);
}
}
// Validate TLS paths
if (profile.ssl_cert_path && !fs.existsSync(profile.ssl_cert_path)) {
errors.push(`SSL certificate not found: ${profile.ssl_cert_path}`);
}
if (profile.ssl_key_path && !fs.existsSync(profile.ssl_key_path)) {
errors.push(`SSL key not found: ${profile.ssl_key_path}`);
}
if (profile.ca_cert_path && !fs.existsSync(profile.ca_cert_path)) {
errors.push(`CA certificate not found: ${profile.ca_cert_path}`);
}
// Validate denied_tools_regex
if (profile.denied_tools_regex) {
try {
new RegExp(profile.denied_tools_regex);
} catch {
errors.push(`Invalid regex in denied_tools_regex: ${profile.denied_tools_regex}`);
}
}
// Validate denied_actions format
this.validateDeniedActions(profile.denied_actions, errors, warnings);
return {
valid: errors.length === 0,
errors,
warnings,
};
}
/**
* Validate a preset configuration
*/
async validatePreset(preset: Preset): Promise<ProfileValidationResult> {
const errors: string[] = [];
const warnings: string[] = [];
// Validate denied_tools_regex
if (preset.denied_tools_regex) {
try {
new RegExp(preset.denied_tools_regex);
} catch {
errors.push(`Invalid regex in denied_tools_regex: ${preset.denied_tools_regex}`);
}
}
// Validate denied_actions format
this.validateDeniedActions(preset.denied_actions, errors, warnings);
return {
valid: errors.length === 0,
errors,
warnings,
};
}
/**
* Ensure user config directory exists
*/
static ensureConfigDir(): void {
if (!fs.existsSync(USER_CONFIG_DIR)) {
fs.mkdirSync(USER_CONFIG_DIR, { recursive: true });
logger.info({ path: USER_CONFIG_DIR }, "Created config directory");
}
}
/**
* Get the path to user profiles config
*/
static getUserConfigPath(): string {
return USER_PROFILES_PATH;
}
/**
* Clear internal caches (for testing)
*/
clearCache(): void {
this.profileCache.clear();
this.presetCache.clear();
this.configCache = null;
}
}
// ============================================================================
// Convenience Functions
// ============================================================================
/**
* Load a profile by name using default paths
*/
export async function loadProfile(name: string): Promise<Profile> {
const loader = new ProfileLoader();
return loader.loadProfile(name);
}
/**
* Load a preset by name using default paths
*/
export async function loadPreset(name: string): Promise<Preset> {
const loader = new ProfileLoader();
return loader.loadPreset(name);
}
/**
* Get profile name from GITLAB_PROFILE environment variable
*/
export function getProfileNameFromEnv(): string | undefined {
return process.env.GITLAB_PROFILE;
}
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