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@dollhousemcp/mcp-server

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DollhouseMCP - A Model Context Protocol (MCP) server that enables dynamic AI persona management from markdown files, allowing Claude and other compatible AI assistants to activate and switch between different behavioral personas.

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/** * Portfolio Manager - Manages the portfolio directory structure for all element types */ import * as fs from 'fs/promises'; import * as path from 'path'; import { homedir } from 'os'; import { logger } from '../utils/logger.js'; import { ElementType } from './types.js'; import { SecurityMonitor } from '../security/securityMonitor.js'; import { UnicodeValidator } from '../security/validators/unicodeValidator.js'; import { DefaultElementProvider } from './DefaultElementProvider.js'; // Constants const ELEMENT_FILE_EXTENSION = '.md'; export { ElementType }; export class PortfolioManager { static instance; static instanceLock = false; static initializationLock = false; static initializationPromise = null; baseDir; constructor(config) { // Get potential directory from environment or config const envDir = process.env.DOLLHOUSE_PORTFOLIO_DIR; const configDir = config?.baseDir; const defaultDir = path.join(homedir(), '.dollhouse', 'portfolio'); // Validate environment variable if provided if (envDir) { if (!path.isAbsolute(envDir)) { throw new Error('DOLLHOUSE_PORTFOLIO_DIR must be an absolute path'); } // Additional validation for suspicious paths if (envDir.includes('..') || envDir.startsWith('/etc') || envDir.startsWith('/sys')) { throw new Error('DOLLHOUSE_PORTFOLIO_DIR contains suspicious path segments'); } } // Validate config directory if provided if (configDir && !path.isAbsolute(configDir)) { throw new Error('Portfolio config baseDir must be an absolute path'); } // Use environment variable if set, otherwise config, otherwise default this.baseDir = envDir || configDir || defaultDir; logger.info(`[PortfolioManager] Portfolio base directory: ${this.baseDir}`); } static getInstance(config) { if (!PortfolioManager.instance) { // Check if another thread is already creating the instance if (PortfolioManager.instanceLock) { throw new Error('PortfolioManager instance is being created by another thread'); } try { PortfolioManager.instanceLock = true; PortfolioManager.instance = new PortfolioManager(config); } finally { PortfolioManager.instanceLock = false; } } return PortfolioManager.instance; } /** * Get the base portfolio directory */ getBaseDir() { return this.baseDir; } /** * Get the directory for a specific element type */ getElementDir(type) { return path.join(this.baseDir, type); } /** * Initialize the portfolio directory structure * Uses locking to prevent race conditions during concurrent initialization */ async initialize() { // If already initializing, wait for the existing initialization if (PortfolioManager.initializationPromise) { return PortfolioManager.initializationPromise; } // If already initialized, check if directories exist if (await this.exists()) { logger.debug('[PortfolioManager] Portfolio already initialized'); return; } // Create initialization promise to prevent concurrent initialization PortfolioManager.initializationPromise = this.performInitialization(); try { await PortfolioManager.initializationPromise; } finally { // Clear the promise after completion PortfolioManager.initializationPromise = null; } } /** * Perform the actual initialization - should only be called once */ async performInitialization() { logger.info('[PortfolioManager] Initializing portfolio directory structure'); // Create base directory try { await fs.mkdir(this.baseDir, { recursive: true }); } catch (error) { const err = error; // In read-only environments (like Docker), we can't create directories // Log but continue - the portfolio will be empty but functional if (err.code === 'EACCES' || err.code === 'EROFS' || err.code === 'ENOENT') { logger.warn(`[PortfolioManager] Cannot create portfolio directory (read-only environment?): ${err.message}`); console.log(`[DollhouseMCP] Running in read-only mode - portfolio features disabled`); return; } throw error; } // Create subdirectories for each element type for (const elementType of Object.values(ElementType)) { const elementDir = path.join(this.baseDir, elementType); await fs.mkdir(elementDir, { recursive: true }); logger.debug(`[PortfolioManager] Created directory: ${elementDir}`); } // Create special directories for stateful elements const agentStateDir = path.join(this.baseDir, ElementType.AGENT, '.state'); await fs.mkdir(agentStateDir, { recursive: true }); logger.info('[PortfolioManager] Portfolio directory structure initialized'); // Migration for v1.4.2 users: rename singular directories to plural await this.migrateFromSingularDirectories(); // Populate with default elements if this is a new installation // Skip during tests to avoid interference if (process.env.NODE_ENV !== 'test') { try { const defaultProvider = new DefaultElementProvider(); await defaultProvider.populateDefaults(this.baseDir); } catch (error) { logger.error('[PortfolioManager] Error populating default elements:', error); // Log to stderr for Claude Desktop visibility console.error(`[PortfolioManager] CRITICAL: Failed to populate default elements: ${error instanceof Error ? error.message : String(error)}`); // Continue anyway - empty portfolio is valid } } } /** * Check if portfolio directory exists */ async exists() { try { await fs.access(this.baseDir); return true; } catch { return false; } } /** * List all elements of a specific type */ async listElements(type) { const elementDir = this.getElementDir(type); try { const files = await fs.readdir(elementDir); // Filter for markdown files only return files.filter(file => file.endsWith(ELEMENT_FILE_EXTENSION)); } catch (error) { const err = error; if (err.code === 'ENOENT') { // Directory doesn't exist yet - this is expected for new installations logger.debug(`[PortfolioManager] Element directory doesn't exist yet: ${elementDir}`); return []; } if (err.code === 'EACCES' || err.code === 'EPERM') { // Permission denied - log but return empty array logger.error(`[PortfolioManager] Permission denied accessing directory: ${elementDir}`, { code: err.code, message: err.message }); return []; } if (err.code === 'ENOTDIR') { // Path exists but is not a directory logger.error(`[PortfolioManager] Path is not a directory: ${elementDir}`, { code: err.code, message: err.message }); throw new Error(`Path is not a directory: ${elementDir}`); } // For any other errors, throw with context logger.error(`[PortfolioManager] Error reading directory: ${elementDir}`, { code: err.code, message: err.message, stack: err.stack }); throw error; } } /** * Get full path to an element file */ getElementPath(type, filename) { // Validate filename to prevent path traversal if (!filename || typeof filename !== 'string') { SecurityMonitor.logSecurityEvent({ type: 'PATH_TRAVERSAL_ATTEMPT', severity: 'MEDIUM', source: 'PortfolioManager.getElementPath', details: `Invalid filename provided: ${typeof filename}`, additionalData: { elementType: type, filename: String(filename) } }); throw new Error('Invalid filename: must be a non-empty string'); } // Check for path traversal attempts if (filename.includes('..') || filename.includes('/') || filename.includes('\\') || path.isAbsolute(filename)) { SecurityMonitor.logSecurityEvent({ type: 'PATH_TRAVERSAL_ATTEMPT', severity: 'HIGH', source: 'PortfolioManager.getElementPath', details: `Path traversal attempt detected in filename: ${filename}`, additionalData: { elementType: type, filename } }); throw new Error(`Invalid filename: contains path traversal characters: ${filename}`); } // Additional validation for hidden files and special characters if (filename.startsWith('.') || filename.includes('\0')) { SecurityMonitor.logSecurityEvent({ type: 'PATH_TRAVERSAL_ATTEMPT', severity: 'MEDIUM', source: 'PortfolioManager.getElementPath', details: `Invalid filename characters detected: ${filename}`, additionalData: { elementType: type, filename, hasHiddenFile: filename.startsWith('.'), hasNullByte: filename.includes('\0') } }); throw new Error(`Invalid filename: contains invalid characters: ${filename}`); } // Ensure filename ends with .md const safeFilename = filename.endsWith('.md') ? filename : `${filename}.md`; return path.join(this.getElementDir(type), safeFilename); } /** * Check if an element exists */ async elementExists(type, filename) { try { await fs.access(this.getElementPath(type, filename)); return true; } catch { return false; } } /** * Get legacy personas directory path (for migration) */ getLegacyPersonasDir() { return path.join(homedir(), '.dollhouse', 'personas'); } /** * Check if legacy personas directory exists */ async hasLegacyPersonas() { try { await fs.access(this.getLegacyPersonasDir()); const files = await fs.readdir(this.getLegacyPersonasDir()); return files.some(file => file.endsWith('.md')); } catch { return false; } } /** * Get portfolio statistics */ async getStatistics() { const stats = {}; for (const elementType of Object.values(ElementType)) { const elements = await this.listElements(elementType); stats[elementType] = elements.length; } return stats; } /** * Migrate from v1.4.2 singular directory names to v1.4.3 plural names * This handles the upgrade path for existing users */ async migrateFromSingularDirectories() { const oldToNew = { 'persona': 'personas', 'skill': 'skills', 'template': 'templates', 'agent': 'agents', 'memory': 'memories', 'ensemble': 'ensembles' }; for (const [oldName, newName] of Object.entries(oldToNew)) { // Unicode normalize the directory names (even though they're hardcoded, for security audit) const normalizedOld = UnicodeValidator.normalize(oldName); const normalizedNew = UnicodeValidator.normalize(newName); if (!normalizedOld.isValid || !normalizedNew.isValid) { // This should never happen with our hardcoded values, but for completeness logger.error(`[PortfolioManager] Invalid Unicode in directory names during migration`); continue; } const oldDir = path.join(this.baseDir, normalizedOld.normalizedContent); const newDir = path.join(this.baseDir, normalizedNew.normalizedContent); try { // Check if old directory exists await fs.access(oldDir); // Check if new directory already has content try { const newDirFiles = await fs.readdir(newDir); if (newDirFiles.length > 0) { logger.warn(`[PortfolioManager] Both ${oldName} and ${newName} directories exist. Keeping ${newName}, skipping migration.`, { oldDir, newDir, fileCount: newDirFiles.length }); continue; } } catch { // New directory doesn't exist or is empty, proceed with migration } // Perform the migration logger.info(`[PortfolioManager] Migrating ${oldName}${newName}`); await fs.rename(oldDir, newDir); // Log security event for audit trail SecurityMonitor.logSecurityEvent({ type: 'DIRECTORY_MIGRATION', severity: 'LOW', source: 'PortfolioManager.migrateFromSingularDirectories', details: `Migrated directory from ${oldName} to ${newName} for v1.4.3 compatibility`, metadata: { oldDir, newDir } }); } catch (error) { // Old directory doesn't exist, which is fine if (error.code !== 'ENOENT') { logger.error(`[PortfolioManager] Error during migration of ${oldName}:`, error); } } } } } //# 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or config\n    const envDir = process.env.DOLLHOUSE_PORTFOLIO_DIR;\n    const configDir = config?.baseDir;\n    const defaultDir = path.join(homedir(), '.dollhouse', 'portfolio');\n    \n    // Validate environment variable if provided\n    if (envDir) {\n      if (!path.isAbsolute(envDir)) {\n        throw new Error('DOLLHOUSE_PORTFOLIO_DIR must be an absolute path');\n      }\n      // Additional validation for suspicious paths\n      if (envDir.includes('..') || envDir.startsWith('/etc') || envDir.startsWith('/sys')) {\n        throw new Error('DOLLHOUSE_PORTFOLIO_DIR contains suspicious path segments');\n      }\n    }\n    \n    // Validate config directory if provided\n    if (configDir && !path.isAbsolute(configDir)) {\n      throw new Error('Portfolio config baseDir must be an absolute path');\n    }\n    \n    // Use environment variable if set, otherwise config, otherwise default\n    this.baseDir = envDir || configDir || defaultDir;\n    \n    logger.info(`[PortfolioManager] Portfolio base directory: ${this.baseDir}`);\n  }\n  \n  public static getInstance(config?: PortfolioConfig): PortfolioManager {\n    if (!PortfolioManager.instance) {\n      // Check if another thread is already creating the instance\n      if (PortfolioManager.instanceLock) {\n        throw new Error('PortfolioManager instance is being created by another thread');\n      }\n      \n      try {\n        PortfolioManager.instanceLock = true;\n        PortfolioManager.instance = new PortfolioManager(config);\n      } finally {\n        PortfolioManager.instanceLock = false;\n      }\n    }\n    return PortfolioManager.instance;\n  }\n  \n  /**\n   * Get the base portfolio directory\n   */\n  public getBaseDir(): string {\n    return this.baseDir;\n  }\n  \n  /**\n   * Get the directory for a specific element type\n   */\n  public getElementDir(type: ElementType): string {\n    return path.join(this.baseDir, type);\n  }\n  \n  /**\n   * Initialize the portfolio directory structure\n   * Uses locking to prevent race conditions during concurrent initialization\n   */\n  public async initialize(): Promise<void> {\n    // If already initializing, wait for the existing initialization\n    if (PortfolioManager.initializationPromise) {\n      return PortfolioManager.initializationPromise;\n    }\n    \n    // If already initialized, check if directories exist\n    if (await this.exists()) {\n      logger.debug('[PortfolioManager] Portfolio already initialized');\n      return;\n    }\n    \n    // Create initialization promise to prevent concurrent initialization\n    PortfolioManager.initializationPromise = this.performInitialization();\n    \n    try {\n      await PortfolioManager.initializationPromise;\n    } finally {\n      // Clear the promise after completion\n      PortfolioManager.initializationPromise = null;\n    }\n  }\n  \n  /**\n   * Perform the actual initialization - should only be called once\n   */\n  private async performInitialization(): Promise<void> {\n    logger.info('[PortfolioManager] Initializing portfolio directory structure');\n    \n    // Create base directory\n    try {\n      await fs.mkdir(this.baseDir, { recursive: true });\n    } catch (error) {\n      const err = error as NodeJS.ErrnoException;\n      // In read-only environments (like Docker), we can't create directories\n      // Log but continue - the portfolio will be empty but functional\n      if (err.code === 'EACCES' || err.code === 'EROFS' || err.code === 'ENOENT') {\n        logger.warn(`[PortfolioManager] Cannot create portfolio directory (read-only environment?): ${err.message}`);\n        console.log(`[DollhouseMCP] Running in read-only mode - portfolio features disabled`);\n        return;\n      }\n      throw error;\n    }\n    \n    // Create subdirectories for each element type\n    for (const elementType of Object.values(ElementType)) {\n      const elementDir = path.join(this.baseDir, elementType);\n      await fs.mkdir(elementDir, { recursive: true });\n      logger.debug(`[PortfolioManager] Created directory: ${elementDir}`);\n    }\n    \n    // Create special directories for stateful elements\n    const agentStateDir = path.join(this.baseDir, ElementType.AGENT, '.state');\n    await fs.mkdir(agentStateDir, { recursive: true });\n    \n    logger.info('[PortfolioManager] Portfolio directory structure initialized');\n    \n    // Migration for v1.4.2 users: rename singular directories to plural\n    await this.migrateFromSingularDirectories();\n    \n    // Populate with default elements if this is a new installation\n    // Skip during tests to avoid interference\n    if (process.env.NODE_ENV !== 'test') {\n      try {\n        const defaultProvider = new DefaultElementProvider();\n        await defaultProvider.populateDefaults(this.baseDir);\n      } catch (error) {\n        logger.error('[PortfolioManager] Error populating default elements:', error);\n        // Log to stderr for Claude Desktop visibility\n        console.error(`[PortfolioManager] CRITICAL: Failed to populate default elements: ${error instanceof Error ? error.message : String(error)}`);\n        // Continue anyway - empty portfolio is valid\n      }\n    }\n  }\n  \n  /**\n   * Check if portfolio directory exists\n   */\n  public async exists(): Promise<boolean> {\n    try {\n      await fs.access(this.baseDir);\n      return true;\n    } catch {\n      return false;\n    }\n  }\n  \n  /**\n   * List all elements of a specific type\n   */\n  public async listElements(type: ElementType): Promise<string[]> {\n    const elementDir = this.getElementDir(type);\n    \n    try {\n      const files = await fs.readdir(elementDir);\n      // Filter for markdown files only\n      return files.filter(file => file.endsWith(ELEMENT_FILE_EXTENSION));\n    } catch (error) {\n      const err = error as NodeJS.ErrnoException;\n      \n      if (err.code === 'ENOENT') {\n        // Directory doesn't exist yet - this is expected for new installations\n        logger.debug(`[PortfolioManager] Element directory doesn't exist yet: ${elementDir}`);\n        return [];\n      }\n      \n      if (err.code === 'EACCES' || err.code === 'EPERM') {\n        // Permission denied - log but return empty array\n        logger.error(`[PortfolioManager] Permission denied accessing directory: ${elementDir}`, {\n          code: err.code,\n          message: err.message\n        });\n        return [];\n      }\n      \n      if (err.code === 'ENOTDIR') {\n        // Path exists but is not a directory\n        logger.error(`[PortfolioManager] Path is not a directory: ${elementDir}`, {\n          code: err.code,\n          message: err.message\n        });\n        throw new Error(`Path is not a directory: ${elementDir}`);\n      }\n      \n      // For any other errors, throw with context\n      logger.error(`[PortfolioManager] Error reading directory: ${elementDir}`, {\n        code: err.code,\n        message: err.message,\n        stack: err.stack\n      });\n      throw error;\n    }\n  }\n  \n  /**\n   * Get full path to an element file\n   */\n  public getElementPath(type: ElementType, filename: string): string {\n    // Validate filename to prevent path traversal\n    if (!filename || typeof filename !== 'string') {\n      SecurityMonitor.logSecurityEvent({\n        type: 'PATH_TRAVERSAL_ATTEMPT',\n        severity: 'MEDIUM',\n        source: 'PortfolioManager.getElementPath',\n        details: `Invalid filename provided: ${typeof filename}`,\n        additionalData: { elementType: type, filename: String(filename) }\n      });\n      throw new Error('Invalid filename: must be a non-empty string');\n    }\n    \n    // Check for path traversal attempts\n    if (filename.includes('..') || filename.includes('/') || filename.includes('\\\\') || path.isAbsolute(filename)) {\n      SecurityMonitor.logSecurityEvent({\n        type: 'PATH_TRAVERSAL_ATTEMPT',\n        severity: 'HIGH',\n        source: 'PortfolioManager.getElementPath',\n        details: `Path traversal attempt detected in filename: ${filename}`,\n        additionalData: { elementType: type, filename }\n      });\n      throw new Error(`Invalid filename: contains path traversal characters: ${filename}`);\n    }\n    \n    // Additional validation for hidden files and special characters\n    if (filename.startsWith('.') || filename.includes('\\0')) {\n      SecurityMonitor.logSecurityEvent({\n        type: 'PATH_TRAVERSAL_ATTEMPT',\n        severity: 'MEDIUM',\n        source: 'PortfolioManager.getElementPath',\n        details: `Invalid filename characters detected: ${filename}`,\n        additionalData: { elementType: type, filename, hasHiddenFile: filename.startsWith('.'), hasNullByte: filename.includes('\\0') }\n      });\n      throw new Error(`Invalid filename: contains invalid characters: ${filename}`);\n    }\n    \n    // Ensure filename ends with .md\n    const safeFilename = filename.endsWith('.md') ? filename : `${filename}.md`;\n    return path.join(this.getElementDir(type), safeFilename);\n  }\n  \n  /**\n   * Check if an element exists\n   */\n  public async elementExists(type: ElementType, filename: string): Promise<boolean> {\n    try {\n      await fs.access(this.getElementPath(type, filename));\n      return true;\n    } catch {\n      return false;\n    }\n  }\n  \n  /**\n   * Get legacy personas directory path (for migration)\n   */\n  public getLegacyPersonasDir(): string {\n    return path.join(homedir(), '.dollhouse', 'personas');\n  }\n  \n  /**\n   * Check if legacy personas directory exists\n   */\n  public async hasLegacyPersonas(): Promise<boolean> {\n    try {\n      await fs.access(this.getLegacyPersonasDir());\n      const files = await fs.readdir(this.getLegacyPersonasDir());\n      return files.some(file => file.endsWith('.md'));\n    } catch {\n      return false;\n    }\n  }\n  \n  /**\n   * Get portfolio statistics\n   */\n  public async getStatistics(): Promise<Record<ElementType, number>> {\n    const stats: Record<string, number> = {};\n    \n    for (const elementType of Object.values(ElementType)) {\n      const elements = await this.listElements(elementType);\n      stats[elementType] = elements.length;\n    }\n    \n    return stats as Record<ElementType, number>;\n  }\n  \n  /**\n   * Migrate from v1.4.2 singular directory names to v1.4.3 plural names\n   * This handles the upgrade path for existing users\n   */\n  private async migrateFromSingularDirectories(): Promise<void> {\n    const oldToNew: Record<string, string> = {\n      'persona': 'personas',\n      'skill': 'skills',\n      'template': 'templates',\n      'agent': 'agents',\n      'memory': 'memories',\n      'ensemble': 'ensembles'\n    };\n    \n    for (const [oldName, newName] of Object.entries(oldToNew)) {\n      // Unicode normalize the directory names (even though they're hardcoded, for security audit)\n      const normalizedOld = UnicodeValidator.normalize(oldName);\n      const normalizedNew = UnicodeValidator.normalize(newName);\n      \n      if (!normalizedOld.isValid || !normalizedNew.isValid) {\n        // This should never happen with our hardcoded values, but for completeness\n        logger.error(`[PortfolioManager] Invalid Unicode in directory names during migration`);\n        continue;\n      }\n      \n      const oldDir = path.join(this.baseDir, normalizedOld.normalizedContent);\n      const newDir = path.join(this.baseDir, normalizedNew.normalizedContent);\n      \n      try {\n        // Check if old directory exists\n        await fs.access(oldDir);\n        \n        // Check if new directory already has content\n        try {\n          const newDirFiles = await fs.readdir(newDir);\n          if (newDirFiles.length > 0) {\n            logger.warn(\n              `[PortfolioManager] Both ${oldName} and ${newName} directories exist. Keeping ${newName}, skipping migration.`,\n              { oldDir, newDir, fileCount: newDirFiles.length }\n            );\n            continue;\n          }\n        } catch {\n          // New directory doesn't exist or is empty, proceed with migration\n        }\n        \n        // Perform the migration\n        logger.info(`[PortfolioManager] Migrating ${oldName} → ${newName}`);\n        await fs.rename(oldDir, newDir);\n        \n        // Log security event for audit trail\n        SecurityMonitor.logSecurityEvent({\n          type: 'DIRECTORY_MIGRATION',\n          severity: 'LOW',\n          source: 'PortfolioManager.migrateFromSingularDirectories',\n          details: `Migrated directory from ${oldName} to ${newName} for v1.4.3 compatibility`,\n          metadata: { oldDir, newDir }\n        });\n        \n      } catch (error) {\n        // Old directory doesn't exist, which is fine\n        if ((error as any).code !== 'ENOENT') {\n          logger.error(`[PortfolioManager] Error during migration of ${oldName}:`, error);\n        }\n      }\n    }\n  }\n}"]}