desktop-audio-proxy/dist/server.cjs.map

A comprehensive audio streaming solution for Tauri and Electron apps that bypasses CORS and WebKit codec issues

{"version":3,"file":"server.cjs","sources":["../src/client.ts","../src/tauri-service.ts","../src/electron-service.ts","../src/server-impl.ts"],"sourcesContent":["import { AudioProxyOptions, StreamInfo, Environment } from './types';\n\n// Type declarations for window objects\ndeclare global {\n  interface Window {\n    __TAURI__?: {\n      tauri: {\n        convertFileSrc: (_filePath: string) => string;\n        invoke?: (\n          _command: string,\n          _args?: Record<string, unknown>\n        ) => Promise<unknown>;\n      };\n    };\n    electronAPI?: unknown;\n  }\n}\n\ninterface ProcessVersions {\n  electron?: string;\n  [key: string]: string | undefined;\n}\n\ndeclare const process:\n  | {\n      versions?: ProcessVersions;\n    }\n  | undefined;\n\nexport class AudioProxyClient {\n  private options: Required<AudioProxyOptions>;\n  private environment: Environment;\n\n  constructor(options: AudioProxyOptions = {}) {\n    this.options = {\n      proxyUrl: options.proxyUrl || 'http://localhost:3002',\n      autoDetect: options.autoDetect ?? true,\n      fallbackToOriginal: options.fallbackToOriginal ?? true,\n      retryAttempts: options.retryAttempts || 3,\n      retryDelay: options.retryDelay || 1000,\n      proxyConfig: options.proxyConfig || {},\n    };\n\n    this.environment = this.detectEnvironment();\n  }\n\n  private detectEnvironment(): Environment {\n    if (typeof window === 'undefined') {\n      return 'unknown';\n    }\n\n    if (window.__TAURI__) {\n      return 'tauri';\n    }\n\n    if (\n      window.electronAPI ||\n      (typeof process !== 'undefined' &&\n        process?.versions &&\n        process.versions.electron)\n    ) {\n      return 'electron';\n    }\n\n    return 'web';\n  }\n\n  public getEnvironment(): Environment {\n    return this.environment;\n  }\n\n  public async isProxyAvailable(): Promise<boolean> {\n    try {\n      const controller = new AbortController();\n      const timeoutId = setTimeout(() => controller.abort(), 5000);\n\n      const response = await fetch(`${this.options.proxyUrl}/health`, {\n        signal: controller.signal,\n        method: 'GET',\n        cache: 'no-cache',\n      });\n\n      clearTimeout(timeoutId);\n\n      if (response.ok) {\n        const data = await response.json();\n        console.log('[AudioProxyClient] Proxy server available:', data);\n        return true;\n      }\n      return false;\n    } catch (error: unknown) {\n      const errorMessage =\n        error instanceof Error ? error.message : 'Unknown error';\n      console.warn(\n        '[AudioProxyClient] Proxy server unavailable:',\n        errorMessage\n      );\n      return false;\n    }\n  }\n\n  public async canPlayUrl(url: string): Promise<StreamInfo> {\n    console.log('[AudioProxyClient] Processing URL:', url);\n\n    // Check if it's a local file\n    if (this.isLocalFile(url)) {\n      console.log('[AudioProxyClient] Using local file handler');\n      return {\n        url,\n        status: 200,\n        headers: {},\n        canPlay: true,\n        requiresProxy: false,\n      };\n    }\n\n    // Check if proxy is available\n    const proxyAvailable = await this.isProxyAvailable();\n\n    if (proxyAvailable) {\n      try {\n        const infoUrl = `${this.options.proxyUrl}/info?url=${encodeURIComponent(url)}`;\n        const response = await fetch(infoUrl);\n\n        if (response.ok) {\n          const data = await response.json();\n          const streamInfo: StreamInfo = {\n            url: data.url,\n            status: data.status,\n            headers: data.headers || {},\n            canPlay: true,\n            requiresProxy: true,\n            contentType: data.contentType,\n            contentLength: data.contentLength,\n            acceptRanges: data.acceptRanges,\n            lastModified: data.lastModified,\n          };\n          console.log('[AudioProxyClient] Stream info:', streamInfo);\n          return streamInfo;\n        }\n      } catch (error) {\n        console.warn(\n          '[AudioProxyClient] Failed to get stream info via proxy:',\n          error\n        );\n      }\n    }\n\n    // Fallback: assume it needs proxy\n    const streamInfo: StreamInfo = {\n      url,\n      status: 0,\n      headers: {},\n      canPlay: false,\n      requiresProxy: true,\n    };\n    console.log('[AudioProxyClient] Stream info:', streamInfo);\n    return streamInfo;\n  }\n\n  public async getPlayableUrl(url: string): Promise<string> {\n    console.log('[AudioProxyClient] Processing URL:', url);\n\n    // Handle local files\n    if (this.isLocalFile(url)) {\n      console.log('[AudioProxyClient] Using local file handler');\n      return this.handleLocalFile(url);\n    }\n\n    // Check stream info\n    const streamInfo = await this.canPlayUrl(url);\n\n    if (streamInfo.requiresProxy) {\n      console.log(\n        '[AudioProxyClient] Proxy required, checking availability...'\n      );\n\n      // Try proxy with retries\n      for (let attempt = 1; attempt <= this.options.retryAttempts; attempt++) {\n        const proxyAvailable = await this.isProxyAvailable();\n\n        if (proxyAvailable) {\n          console.log(\n            '[AudioProxyClient] Generated proxy URL:',\n            `${this.options.proxyUrl}/proxy?url=${encodeURIComponent(url)}`\n          );\n          return `${this.options.proxyUrl}/proxy?url=${encodeURIComponent(url)}`;\n        }\n\n        if (attempt < this.options.retryAttempts) {\n          console.log(\n            `[AudioProxyClient] Proxy not available on attempt ${attempt}`\n          );\n          await this.delay(this.options.retryDelay);\n        }\n      }\n\n      // Proxy failed, fallback if enabled\n      if (this.options.fallbackToOriginal) {\n        console.log(\n          '[AudioProxyClient] Falling back to original URL (may have CORS issues)'\n        );\n        return url;\n      } else {\n        throw new Error('Proxy server unavailable and fallback disabled');\n      }\n    }\n\n    return url;\n  }\n\n  private isLocalFile(url: string): boolean {\n    return (\n      url.startsWith('/') ||\n      url.startsWith('./') ||\n      url.startsWith('../') ||\n      url.startsWith('file://') ||\n      url.startsWith('blob:') ||\n      url.startsWith('data:') ||\n      !!url.match(/^[a-zA-Z]:\\\\/)\n    ); // Windows path\n  }\n\n  private handleLocalFile(url: string): string {\n    // Handle data: and blob: URLs directly - no conversion needed\n    if (url.startsWith('data:') || url.startsWith('blob:')) {\n      return url;\n    }\n\n    // In Tauri, use convertFileSrc for file:// URLs\n    if (this.environment === 'tauri' && window.__TAURI__) {\n      try {\n        const { convertFileSrc } = window.__TAURI__.tauri;\n        if (\n          url.startsWith('file://') ||\n          url.startsWith('/') ||\n          url.match(/^[a-zA-Z]:\\\\/)\n        ) {\n          return convertFileSrc(url);\n        }\n      } catch (error) {\n        console.warn(\n          '[AudioProxyClient] Failed to convert file source with Tauri:',\n          error\n        );\n        // Fallback to original URL if conversion fails\n      }\n    }\n\n    // For other environments or fallback, return as-is\n    return url;\n  }\n\n  private delay(ms: number): Promise<void> {\n    return new Promise(resolve => setTimeout(resolve, ms));\n  }\n}\n\nexport function createAudioClient(\n  options?: AudioProxyOptions\n): AudioProxyClient {\n  return new AudioProxyClient(options);\n}\n","import { AudioProxyClient } from './client';\nimport { AudioServiceOptions } from './types';\n\n// Type declarations for Tauri API that extends client.ts declarations\n\nexport class TauriAudioService {\n  private audioClient: AudioProxyClient;\n\n  constructor(options: AudioServiceOptions = {}) {\n    // Use audioOptions if provided, otherwise use the options directly\n    const clientOptions = options.audioOptions || options;\n    this.audioClient = new AudioProxyClient(clientOptions);\n  }\n\n  public async getStreamableUrl(url: string): Promise<string> {\n    return await this.audioClient.getPlayableUrl(url);\n  }\n\n  public async canPlayStream(url: string) {\n    return await this.audioClient.canPlayUrl(url);\n  }\n\n  public getEnvironment() {\n    return this.audioClient.getEnvironment();\n  }\n\n  public async isProxyAvailable(): Promise<boolean> {\n    return await this.audioClient.isProxyAvailable();\n  }\n\n  public async checkSystemCodecs(): Promise<{\n    supportedFormats: string[];\n    missingCodecs: string[];\n    capabilities: Record<string, string>;\n  }> {\n    const audio = new Audio();\n    const formats = [\n      { name: 'MP3', mime: 'audio/mpeg', codecs: ['mp3'] },\n      { name: 'OGG', mime: 'audio/ogg', codecs: ['vorbis', 'opus'] },\n      { name: 'WAV', mime: 'audio/wav', codecs: ['pcm'] },\n      { name: 'AAC', mime: 'audio/aac', codecs: ['mp4a.40.2'] },\n      { name: 'FLAC', mime: 'audio/flac', codecs: ['flac'] },\n      { name: 'WEBM', mime: 'audio/webm', codecs: ['vorbis', 'opus'] },\n      { name: 'M4A', mime: 'audio/mp4', codecs: ['mp4a.40.2'] },\n    ];\n\n    const supportedFormats: string[] = [];\n    const missingCodecs: string[] = [];\n    const capabilities: Record<string, string> = {};\n\n    for (const format of formats) {\n      let bestSupport = '';\n      let isSupported = false;\n\n      // Test basic MIME type\n      const basicSupport = audio.canPlayType(format.mime);\n      capabilities[format.name + '_basic'] = basicSupport;\n\n      if (basicSupport === 'probably' || basicSupport === 'maybe') {\n        bestSupport = basicSupport;\n        isSupported = true;\n      }\n\n      // Test with codecs\n      for (const codec of format.codecs) {\n        const codecSupport = audio.canPlayType(\n          `${format.mime}; codecs=\"${codec}\"`\n        );\n        capabilities[format.name + '_' + codec] = codecSupport;\n\n        if (codecSupport === 'probably') {\n          bestSupport = 'probably';\n          isSupported = true;\n        } else if (codecSupport === 'maybe' && bestSupport !== 'probably') {\n          bestSupport = 'maybe';\n          isSupported = true;\n        }\n      }\n\n      capabilities[format.name] = bestSupport;\n\n      if (isSupported) {\n        supportedFormats.push(format.name);\n      } else {\n        missingCodecs.push(format.name);\n      }\n    }\n\n    // Check for additional Tauri-specific audio capabilities if available\n    if (this.getEnvironment() === 'tauri' && window.__TAURI__?.tauri?.invoke) {\n      try {\n        const { invoke } = window.__TAURI__.tauri;\n\n        // Try to get system audio info from Tauri backend\n        const systemAudioInfo = await invoke('get_system_audio_info').catch(\n          () => null\n        );\n        if (systemAudioInfo && typeof systemAudioInfo === 'object') {\n          capabilities['tauri_system_info'] = JSON.stringify(systemAudioInfo);\n\n          // Enhanced format support based on system capabilities\n          const audioInfo = systemAudioInfo as { supportedFormats?: string[] };\n          if (audioInfo.supportedFormats) {\n            audioInfo.supportedFormats.forEach((format: string) => {\n              if (!supportedFormats.includes(format)) {\n                supportedFormats.push(format);\n                // Remove from missing codecs if it was there\n                const missingIndex = missingCodecs.indexOf(format);\n                if (missingIndex > -1) {\n                  missingCodecs.splice(missingIndex, 1);\n                }\n              }\n            });\n          }\n        }\n      } catch (error) {\n        console.warn(\n          '[TauriAudioService] Could not access Tauri backend for codec detection:',\n          error\n        );\n      }\n    }\n\n    return { supportedFormats, missingCodecs, capabilities };\n  }\n\n  // Tauri-specific method to get audio file metadata\n  public async getAudioMetadata(filePath: string): Promise<{\n    duration?: number;\n    bitrate?: number;\n    sampleRate?: number;\n    channels?: number;\n    format?: string;\n  } | null> {\n    if (this.getEnvironment() !== 'tauri' || !window.__TAURI__?.tauri?.invoke) {\n      return null;\n    }\n\n    try {\n      const { invoke } = window.__TAURI__.tauri;\n      const result = await invoke('get_audio_metadata', { path: filePath });\n      return result as {\n        duration?: number;\n        bitrate?: number;\n        sampleRate?: number;\n        channels?: number;\n        format?: string;\n      } | null;\n    } catch (error) {\n      console.warn('[TauriAudioService] Failed to get audio metadata:', error);\n      return null;\n    }\n  }\n\n  // Tauri-specific method to enumerate audio devices\n  public async getAudioDevices(): Promise<{\n    inputDevices: Array<{ id: string; name: string }>;\n    outputDevices: Array<{ id: string; name: string }>;\n  } | null> {\n    if (this.getEnvironment() !== 'tauri' || !window.__TAURI__?.tauri?.invoke) {\n      return null;\n    }\n\n    try {\n      const { invoke } = window.__TAURI__.tauri;\n      const result = await invoke('get_audio_devices');\n      return result as {\n        inputDevices: Array<{ id: string; name: string }>;\n        outputDevices: Array<{ id: string; name: string }>;\n      } | null;\n    } catch (error) {\n      console.warn('[TauriAudioService] Failed to get audio devices:', error);\n      return null;\n    }\n  }\n}\n","import { AudioProxyClient } from './client';\nimport { AudioServiceOptions } from './types';\n\n// Type declarations for Electron API\ninterface ElectronAPI {\n  getSystemAudioInfo?: () => Promise<{\n    supportedFormats?: string[];\n    systemInfo?: string;\n  }>;\n  getAudioMetadata?: (_filePath: string) => Promise<{\n    duration?: number;\n    bitrate?: number;\n    sampleRate?: number;\n    channels?: number;\n    format?: string;\n  }>;\n  getAudioDevices?: () => Promise<{\n    inputDevices: Array<{ id: string; name: string }>;\n    outputDevices: Array<{ id: string; name: string }>;\n  }>;\n  getSystemAudioSettings?: () => Promise<{\n    defaultInputDevice?: string;\n    defaultOutputDevice?: string;\n    masterVolume?: number;\n  }>;\n}\n\n// Extend the existing Window interface from client.ts - don't redeclare electronAPI\n\nexport class ElectronAudioService {\n  private audioClient: AudioProxyClient;\n\n  constructor(options: AudioServiceOptions = {}) {\n    // Use audioOptions if provided, otherwise use the options directly\n    const clientOptions = options.audioOptions || options;\n    this.audioClient = new AudioProxyClient(clientOptions);\n  }\n\n  public async getStreamableUrl(url: string): Promise<string> {\n    return await this.audioClient.getPlayableUrl(url);\n  }\n\n  public async canPlayStream(url: string) {\n    return await this.audioClient.canPlayUrl(url);\n  }\n\n  public getEnvironment() {\n    return this.audioClient.getEnvironment();\n  }\n\n  public async isProxyAvailable(): Promise<boolean> {\n    return await this.audioClient.isProxyAvailable();\n  }\n\n  public async checkSystemCodecs(): Promise<{\n    supportedFormats: string[];\n    missingCodecs: string[];\n    capabilities: Record<string, string>;\n    electronVersion?: string;\n    chromiumVersion?: string;\n  }> {\n    const audio = new Audio();\n    const formats = [\n      { name: 'MP3', mime: 'audio/mpeg', codecs: ['mp3'] },\n      { name: 'OGG', mime: 'audio/ogg', codecs: ['vorbis', 'opus'] },\n      { name: 'WAV', mime: 'audio/wav', codecs: ['pcm'] },\n      { name: 'AAC', mime: 'audio/aac', codecs: ['mp4a.40.2'] },\n      { name: 'FLAC', mime: 'audio/flac', codecs: ['flac'] },\n      { name: 'WEBM', mime: 'audio/webm', codecs: ['vorbis', 'opus'] },\n      { name: 'M4A', mime: 'audio/mp4', codecs: ['mp4a.40.2'] },\n    ];\n\n    const supportedFormats: string[] = [];\n    const missingCodecs: string[] = [];\n    const capabilities: Record<string, string> = {};\n\n    for (const format of formats) {\n      let bestSupport = '';\n      let isSupported = false;\n\n      // Test basic MIME type\n      const basicSupport = audio.canPlayType(format.mime);\n      capabilities[format.name + '_basic'] = basicSupport;\n\n      if (basicSupport === 'probably' || basicSupport === 'maybe') {\n        bestSupport = basicSupport;\n        isSupported = true;\n      }\n\n      // Test with codecs\n      for (const codec of format.codecs) {\n        const codecSupport = audio.canPlayType(\n          `${format.mime}; codecs=\"${codec}\"`\n        );\n        capabilities[format.name + '_' + codec] = codecSupport;\n\n        if (codecSupport === 'probably') {\n          bestSupport = 'probably';\n          isSupported = true;\n        } else if (codecSupport === 'maybe' && bestSupport !== 'probably') {\n          bestSupport = 'maybe';\n          isSupported = true;\n        }\n      }\n\n      capabilities[format.name] = bestSupport;\n\n      if (isSupported) {\n        supportedFormats.push(format.name);\n      } else {\n        missingCodecs.push(format.name);\n      }\n    }\n\n    const result: {\n      supportedFormats: string[];\n      missingCodecs: string[];\n      capabilities: Record<string, string>;\n      electronVersion?: string;\n      chromiumVersion?: string;\n    } = { supportedFormats, missingCodecs, capabilities };\n\n    // Add Electron version info if available\n    if (this.getEnvironment() === 'electron') {\n      try {\n        if (typeof process !== 'undefined' && process.versions) {\n          result.electronVersion = process.versions.electron;\n          result.chromiumVersion = process.versions.chrome;\n        }\n\n        // Integrate with Electron main process for system codec detection\n        const electronAPI = window.electronAPI as ElectronAPI | undefined;\n        if (electronAPI?.getSystemAudioInfo) {\n          try {\n            const systemAudioInfo = await electronAPI.getSystemAudioInfo();\n            if (systemAudioInfo) {\n              capabilities['electron_system_info'] =\n                JSON.stringify(systemAudioInfo);\n\n              // Enhanced format support based on system capabilities\n              if (systemAudioInfo.supportedFormats) {\n                systemAudioInfo.supportedFormats.forEach((format: string) => {\n                  if (!supportedFormats.includes(format)) {\n                    supportedFormats.push(format);\n                    // Remove from missing codecs if it was there\n                    const missingIndex = missingCodecs.indexOf(format);\n                    if (missingIndex > -1) {\n                      missingCodecs.splice(missingIndex, 1);\n                    }\n                  }\n                });\n              }\n            }\n          } catch (error) {\n            console.warn(\n              '[ElectronAudioService] Failed to get system audio info via IPC:',\n              error\n            );\n          }\n        }\n      } catch (error) {\n        console.warn(\n          '[ElectronAudioService] Could not access Electron version info:',\n          error\n        );\n      }\n    }\n\n    return result;\n  }\n\n  // Electron-specific method to get audio file metadata via main process\n  public async getAudioMetadata(filePath: string): Promise<{\n    duration?: number;\n    bitrate?: number;\n    sampleRate?: number;\n    channels?: number;\n    format?: string;\n  } | null> {\n    const electronAPI = window.electronAPI as ElectronAPI | undefined;\n    if (\n      this.getEnvironment() !== 'electron' ||\n      !electronAPI?.getAudioMetadata\n    ) {\n      return null;\n    }\n\n    try {\n      return await electronAPI.getAudioMetadata(filePath);\n    } catch (error) {\n      console.warn(\n        '[ElectronAudioService] Failed to get audio metadata:',\n        error\n      );\n      return null;\n    }\n  }\n\n  // Electron-specific method to enumerate audio devices via main process\n  public async getAudioDevices(): Promise<{\n    inputDevices: Array<{ id: string; name: string }>;\n    outputDevices: Array<{ id: string; name: string }>;\n  } | null> {\n    const electronAPI = window.electronAPI as ElectronAPI | undefined;\n    if (this.getEnvironment() !== 'electron' || !electronAPI?.getAudioDevices) {\n      return null;\n    }\n\n    try {\n      return await electronAPI.getAudioDevices();\n    } catch (error) {\n      console.warn(\n        '[ElectronAudioService] Failed to get audio devices:',\n        error\n      );\n      return null;\n    }\n  }\n\n  // Electron-specific method to get system audio settings\n  public async getSystemAudioSettings(): Promise<{\n    defaultInputDevice?: string;\n    defaultOutputDevice?: string;\n    masterVolume?: number;\n  } | null> {\n    const electronAPI = window.electronAPI as ElectronAPI | undefined;\n    if (\n      this.getEnvironment() !== 'electron' ||\n      !electronAPI?.getSystemAudioSettings\n    ) {\n      return null;\n    }\n\n    try {\n      return await electronAPI.getSystemAudioSettings();\n    } catch (error) {\n      console.warn(\n        '[ElectronAudioService] Failed to get system audio settings:',\n        error\n      );\n      return null;\n    }\n  }\n}\n","import express, { Request, Response } from 'express';\nimport cors from 'cors';\nimport axios, { AxiosResponse, AxiosError } from 'axios';\nimport { Readable } from 'stream';\nimport { createServer } from 'net';\nimport { Server as HttpServer } from 'http';\nimport { ProxyConfig } from './types';\n\n// Utility function to check if a port is available\nasync function isPortAvailable(\n  port: number,\n  host: string = 'localhost'\n): Promise<boolean> {\n  return new Promise(resolve => {\n    const server = createServer();\n\n    server.listen(port, host, () => {\n      server.close(() => {\n        resolve(true);\n      });\n    });\n\n    server.on('error', () => {\n      resolve(false);\n    });\n  });\n}\n\n// Find the next available port starting from the given port\nasync function findAvailablePort(\n  startPort: number,\n  host: string = 'localhost',\n  maxAttempts: number = 10\n): Promise<number> {\n  for (let i = 0; i < maxAttempts; i++) {\n    const port = startPort + i;\n    const available = await isPortAvailable(port, host);\n    if (available) {\n      return port;\n    }\n  }\n  throw new Error(\n    `No available port found in range ${startPort}-${startPort + maxAttempts - 1}`\n  );\n}\n\nexport class AudioProxyServer {\n  private app: express.Application;\n  private server: HttpServer | null = null;\n  private config: Required<ProxyConfig>;\n  private actualPort: number = 0;\n\n  constructor(config: ProxyConfig = {}) {\n    this.config = {\n      port: config.port || 3002,\n      host: config.host || 'localhost',\n      corsOrigins: config.corsOrigins || '*',\n      timeout: config.timeout || 60000,\n      maxRedirects: config.maxRedirects || 10,\n      userAgent: config.userAgent || 'AudioProxy/1.0',\n      enableLogging: config.enableLogging ?? true,\n      enableTranscoding: config.enableTranscoding ?? false,\n      cacheEnabled: config.cacheEnabled ?? true,\n      cacheTTL: config.cacheTTL || 3600,\n    };\n\n    this.app = express();\n    this.setupMiddleware();\n    this.setupRoutes();\n  }\n\n  private setupMiddleware(): void {\n    // CORS middleware\n    this.app.use(\n      cors({\n        origin: this.config.corsOrigins,\n        credentials: true,\n        exposedHeaders: ['Content-Length', 'Content-Range', 'Accept-Ranges'],\n        methods: ['GET', 'OPTIONS', 'HEAD'],\n        allowedHeaders: ['Content-Type', 'Range', 'Accept-Encoding'],\n      })\n    );\n\n    // Logging middleware\n    if (this.config.enableLogging) {\n      this.app.use((req: Request, res: Response, next) => {\n        console.log(`[AudioProxy] ${req.method} ${req.path}`);\n        next();\n      });\n    }\n  }\n\n  private setupRoutes(): void {\n    // Handle CORS preflight for all routes\n    this.app.options('*', (req: Request, res: Response) => {\n      res.set({\n        'Access-Control-Allow-Origin': this.config.corsOrigins,\n        'Access-Control-Allow-Methods': 'GET, HEAD, OPTIONS',\n        'Access-Control-Allow-Headers':\n          'Content-Type, Range, Accept-Encoding, User-Agent',\n        'Access-Control-Allow-Credentials': 'true',\n        'Access-Control-Max-Age': '86400', // 24 hours\n      });\n      res.status(204).end();\n    });\n\n    // Health check endpoint\n    this.app.get('/health', (req: Request, res: Response) => {\n      res.json({\n        status: 'ok',\n        version: '1.1.1',\n        uptime: process.uptime(),\n        config: {\n          port: this.actualPort || this.config.port,\n          configuredPort: this.config.port,\n          enableTranscoding: this.config.enableTranscoding,\n          cacheEnabled: this.config.cacheEnabled,\n        },\n      });\n    });\n\n    // Info endpoint\n    this.app.get('/info', async (req: Request, res: Response) => {\n      const url = req.query.url as string;\n      if (!url) {\n        return res.status(400).json({ error: 'URL parameter required' });\n      }\n\n      try {\n        // Get stream info without downloading\n        const response = await axios({\n          method: 'HEAD',\n          url: url,\n          headers: {\n            'User-Agent': this.config.userAgent,\n            Accept: 'audio/*,*/*;q=0.1',\n          },\n          timeout: this.config.timeout,\n          maxRedirects: this.config.maxRedirects,\n          validateStatus: status => status < 400,\n        });\n\n        res.json({\n          url,\n          status: response.status,\n          headers: response.headers,\n          contentType: response.headers['content-type'],\n          contentLength: response.headers['content-length'],\n          acceptRanges: response.headers['accept-ranges'],\n          lastModified: response.headers['last-modified'],\n        });\n      } catch (error: unknown) {\n        console.error('[AudioProxy] Info error:', error);\n\n        if (error && typeof error === 'object' && 'response' in error) {\n          const axiosError = error as AxiosError;\n          if (axiosError.response) {\n            res.status(axiosError.response.status).json({\n              error: `Upstream error: ${axiosError.response.status} ${axiosError.response.statusText}`,\n              url: url,\n            });\n          }\n        } else {\n          const errorMessage =\n            error instanceof Error ? error.message : 'Unknown error';\n          res.status(500).json({\n            error: 'Failed to get stream info',\n            message: errorMessage,\n            url: url,\n          });\n        }\n      }\n    });\n\n    // Proxy endpoint\n    this.app.get('/proxy', async (req: Request, res: Response) => {\n      const url = req.query.url as string;\n      if (!url) {\n        return res.status(400).json({ error: 'URL parameter required' });\n      }\n\n      try {\n        // Set CORS headers immediately\n        res.set({\n          'Access-Control-Allow-Origin': this.config.corsOrigins,\n          'Access-Control-Allow-Credentials': 'true',\n          'Access-Control-Expose-Headers':\n            'Content-Length, Content-Range, Accept-Ranges',\n          'Access-Control-Allow-Methods': 'GET, OPTIONS, HEAD',\n          'Access-Control-Allow-Headers':\n            'Content-Type, Range, Accept-Encoding',\n        });\n\n        // Prepare request headers\n        const requestHeaders: Record<string, string> = {\n          'User-Agent': this.config.userAgent,\n          Accept: req.headers.accept || 'audio/*,*/*;q=0.1',\n          'Accept-Language': req.headers['accept-language'] || 'en-US,en;q=0.9',\n          'Cache-Control': 'no-cache',\n          Pragma: 'no-cache',\n        };\n\n        // Handle range requests for seeking support\n        if (req.headers.range) {\n          requestHeaders['Range'] = req.headers.range;\n        }\n\n        // Handle encoding\n        if (req.headers['accept-encoding']) {\n          requestHeaders['Accept-Encoding'] = req.headers['accept-encoding'];\n        }\n\n        // Use axios for better stream handling\n        const response: AxiosResponse = await axios({\n          method: 'GET',\n          url: url,\n          headers: requestHeaders,\n          responseType: 'stream',\n          timeout: this.config.timeout,\n          maxRedirects: this.config.maxRedirects,\n          validateStatus: status => status < 400, // Accept redirects and success codes\n        });\n\n        // Set response status\n        res.status(response.status);\n\n        // Copy relevant headers from the original response\n        const headersToProxy = [\n          'content-type',\n          'content-length',\n          'content-range',\n          'accept-ranges',\n          'cache-control',\n          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(stream && !stream.destroyed) {\n            stream.destroy();\n          }\n        });\n\n        // Pipe the stream to response\n        stream.pipe(res);\n      } catch (error: unknown) {\n        console.error('[AudioProxy] Proxy error:', error);\n\n        if (!res.headersSent) {\n          if (error && typeof error === 'object' && 'response' in error) {\n            const axiosError = error as AxiosError;\n            if (axiosError.response) {\n              // HTTP error from upstream\n              res.status(axiosError.response.status).json({\n                error: `Upstream error: ${axiosError.response.status} ${axiosError.response.statusText}`,\n                url: url,\n              });\n            }\n          } else if (error && typeof error === 'object' && 'code' in error) {\n            const nodeError = error as { code: string; message?: string };\n            if (nodeError.code === 'ENOTFOUND') {\n              // DNS resolution failed\n              res.status(404).json({\n                error: 'Audio source not found',\n                message: 'Unable to resolve hostname',\n                url: url,\n              });\n            } else if (nodeError.code === 'ECONNREFUSED') {\n              // Connection refused\n              res.status(503).json({\n                error: 'Audio source unavailable',\n                message: 'Connection refused',\n                url: url,\n              });\n            } else if (nodeError.code === 'ETIMEDOUT') {\n              // Request timeout\n              res.status(408).json({\n                error: 'Request timeout',\n                message: 'Audio source did not respond in time',\n                url: url,\n              });\n            } else {\n              // Generic error with code\n              const errorMessage = nodeError.message || 'Unknown error';\n              res.status(500).json({\n                error: 'Proxy request failed',\n                message: errorMessage,\n                url: url,\n              });\n            }\n          } else {\n            // Generic error\n            const errorMessage =\n              error instanceof Error ? error.message : 'Unknown error';\n            res.status(500).json({\n              error: 'Proxy request failed',\n              message: errorMessage,\n              url: url,\n            });\n          }\n        }\n      }\n    });\n  }\n\n  public async start(): Promise<void> {\n    try {\n      // Find an available port starting from the configured port\n      this.actualPort = await findAvailablePort(\n        this.config.port,\n        this.config.host\n      );\n\n      return new Promise((resolve, reject) => {\n        this.server = this.app.listen(this.actualPort, this.config.host, () => {\n          if (this.actualPort !== this.config.port) {\n            console.log(\n              `⚠️  Port ${this.config.port} was occupied, using port ${this.actualPort} instead`\n            );\n          }\n          console.log(\n            `Desktop Audio Proxy running on http://${this.config.host}:${this.actualPort}`\n          );\n          console.log(\n            `Use http://${this.config.host}:${this.actualPort}/proxy?url=YOUR_AUDIO_URL`\n          );\n          resolve();\n        });\n\n        this.server.on('error', (error: Error) => {\n          reject(error);\n        });\n      });\n    } catch (error: unknown) {\n      const errorMessage =\n        error instanceof Error ? error.message : 'Unknown error';\n      throw new Error(`Failed to start proxy server: ${errorMessage}`);\n    }\n  }\n\n  public async stop(): Promise<void> {\n    return new Promise(resolve => {\n      if (this.server) {\n        this.server.close(() => {\n          console.log('Desktop Audio Proxy stopped');\n          resolve();\n        });\n      } else {\n        resolve();\n      }\n    });\n  }\n\n  public getActualPort(): number {\n    return this.actualPort || this.config.port;\n  }\n\n  public getProxyUrl(): string {\n    return `http://${this.config.host}:${this.getActualPort()}`;\n  }\n}\n\n// Convenience functions\nexport function createProxyServer(config?: ProxyConfig): AudioProxyServer {\n  return new AudioProxyServer(config);\n}\n\nexport async function startProxyServer(\n  config?: ProxyConfig\n): Promise<AudioProxyServer> {\n  const server = createProxyServer(config);\n  await server.start();\n  return 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