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qwen/nodejs/node_modules/dotenv/lib/main.js

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+const fs = require('fs')
+const path = require('path')
+const os = require('os')
+const crypto = require('crypto')
+const packageJson = require('../package.json')
+
+const version = packageJson.version
+
+const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
+
+// Parse src into an Object
+function parse (src) {
+  const obj = {}
+
+  // Convert buffer to string
+  let lines = src.toString()
+
+  // Convert line breaks to same format
+  lines = lines.replace(/\r\n?/mg, '\n')
+
+  let match
+  while ((match = LINE.exec(lines)) != null) {
+    const key = match[1]
+
+    // Default undefined or null to empty string
+    let value = (match[2] || '')
+
+    // Remove whitespace
+    value = value.trim()
+
+    // Check if double quoted
+    const maybeQuote = value[0]
+
+    // Remove surrounding quotes
+    value = value.replace(/^(['"`])([\s\S]*)\1$/mg, '$2')
+
+    // Expand newlines if double quoted
+    if (maybeQuote === '"') {
+      value = value.replace(/\\n/g, '\n')
+      value = value.replace(/\\r/g, '\r')
+    }
+
+    // Add to object
+    obj[key] = value
+  }
+
+  return obj
+}
+
+function _parseVault (options) {
+  options = options || {}
+
+  const vaultPath = _vaultPath(options)
+  options.path = vaultPath // parse .env.vault
+  const result = DotenvModule.configDotenv(options)
+  if (!result.parsed) {
+    const err = new Error(`MISSING_DATA: Cannot parse ${vaultPath} for an unknown reason`)
+    err.code = 'MISSING_DATA'
+    throw err
+  }
+
+  // handle scenario for comma separated keys - for use with key rotation
+  // example: DOTENV_KEY="dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=prod,dotenv://:key_7890@dotenvx.com/vault/.env.vault?environment=prod"
+  const keys = _dotenvKey(options).split(',')
+  const length = keys.length
+
+  let decrypted
+  for (let i = 0; i < length; i++) {
+    try {
+      // Get full key
+      const key = keys[i].trim()
+
+      // Get instructions for decrypt
+      const attrs = _instructions(result, key)
+
+      // Decrypt
+      decrypted = DotenvModule.decrypt(attrs.ciphertext, attrs.key)
+
+      break
+    } catch (error) {
+      // last key
+      if (i + 1 >= length) {
+        throw error
+      }
+      // try next key
+    }
+  }
+
+  // Parse decrypted .env string
+  return DotenvModule.parse(decrypted)
+}
+
+function _warn (message) {
+  console.log(`[dotenv@${version}][WARN] ${message}`)
+}
+
+function _debug (message) {
+  console.log(`[dotenv@${version}][DEBUG] ${message}`)
+}
+
+function _log (message) {
+  console.log(`[dotenv@${version}] ${message}`)
+}
+
+function _dotenvKey (options) {
+  // prioritize developer directly setting options.DOTENV_KEY
+  if (options && options.DOTENV_KEY && options.DOTENV_KEY.length > 0) {
+    return options.DOTENV_KEY
+  }
+
+  // secondary infra already contains a DOTENV_KEY environment variable
+  if (process.env.DOTENV_KEY && process.env.DOTENV_KEY.length > 0) {
+    return process.env.DOTENV_KEY
+  }
+
+  // fallback to empty string
+  return ''
+}
+
+function _instructions (result, dotenvKey) {
+  // Parse DOTENV_KEY. Format is a URI
+  let uri
+  try {
+    uri = new URL(dotenvKey)
+  } catch (error) {
+    if (error.code === 'ERR_INVALID_URL') {
+      const err = new Error('INVALID_DOTENV_KEY: Wrong format. Must be in valid uri format like dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=development')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    }
+
+    throw error
+  }
+
+  // Get decrypt key
+  const key = uri.password
+  if (!key) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing key part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get environment
+  const environment = uri.searchParams.get('environment')
+  if (!environment) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing environment part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get ciphertext payload
+  const environmentKey = `DOTENV_VAULT_${environment.toUpperCase()}`
+  const ciphertext = result.parsed[environmentKey] // DOTENV_VAULT_PRODUCTION
+  if (!ciphertext) {
+    const err = new Error(`NOT_FOUND_DOTENV_ENVIRONMENT: Cannot locate environment ${environmentKey} in your .env.vault file.`)
+    err.code = 'NOT_FOUND_DOTENV_ENVIRONMENT'
+    throw err
+  }
+
+  return { ciphertext, key }
+}
+
+function _vaultPath (options) {
+  let possibleVaultPath = null
+
+  if (options && options.path && options.path.length > 0) {
+    if (Array.isArray(options.path)) {
+      for (const filepath of options.path) {
+        if (fs.existsSync(filepath)) {
+          possibleVaultPath = filepath.endsWith('.vault') ? filepath : `${filepath}.vault`
+        }
+      }
+    } else {
+      possibleVaultPath = options.path.endsWith('.vault') ? options.path : `${options.path}.vault`
+    }
+  } else {
+    possibleVaultPath = path.resolve(process.cwd(), '.env.vault')
+  }
+
+  if (fs.existsSync(possibleVaultPath)) {
+    return possibleVaultPath
+  }
+
+  return null
+}
+
+function _resolveHome (envPath) {
+  return envPath[0] === '~' ? path.join(os.homedir(), envPath.slice(1)) : envPath
+}
+
+function _configVault (options) {
+  const debug = Boolean(options && options.debug)
+  const quiet = options && 'quiet' in options ? options.quiet : true
+
+  if (debug || !quiet) {
+    _log('Loading env from encrypted .env.vault')
+  }
+
+  const parsed = DotenvModule._parseVault(options)
+
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+
+  DotenvModule.populate(processEnv, parsed, options)
+
+  return { parsed }
+}
+
+function configDotenv (options) {
+  const dotenvPath = path.resolve(process.cwd(), '.env')
+  let encoding = 'utf8'
+  const debug = Boolean(options && options.debug)
+  const quiet = options && 'quiet' in options ? options.quiet : true
+
+  if (options && options.encoding) {
+    encoding = options.encoding
+  } else {
+    if (debug) {
+      _debug('No encoding is specified. UTF-8 is used by default')
+    }
+  }
+
+  let optionPaths = [dotenvPath] // default, look for .env
+  if (options && options.path) {
+    if (!Array.isArray(options.path)) {
+      optionPaths = [_resolveHome(options.path)]
+    } else {
+      optionPaths = [] // reset default
+      for (const filepath of options.path) {
+        optionPaths.push(_resolveHome(filepath))
+      }
+    }
+  }
+
+  // Build the parsed data in a temporary object (because we need to return it).  Once we have the final
+  // parsed data, we will combine it with process.env (or options.processEnv if provided).
+  let lastError
+  const parsedAll = {}
+  for (const path of optionPaths) {
+    try {
+      // Specifying an encoding returns a string instead of a buffer
+      const parsed = DotenvModule.parse(fs.readFileSync(path, { encoding }))
+
+      DotenvModule.populate(parsedAll, parsed, options)
+    } catch (e) {
+      if (debug) {
+        _debug(`Failed to load ${path} ${e.message}`)
+      }
+      lastError = e
+    }
+  }
+
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+
+  DotenvModule.populate(processEnv, parsedAll, options)
+
+  if (debug || !quiet) {
+    const keysCount = Object.keys(parsedAll).length
+    const shortPaths = []
+    for (const filePath of optionPaths) {
+      try {
+        const relative = path.relative(process.cwd(), filePath)
+        shortPaths.push(relative)
+      } catch (e) {
+        if (debug) {
+          _debug(`Failed to load ${filePath} ${e.message}`)
+        }
+        lastError = e
+      }
+    }
+
+    _log(`injecting env (${keysCount}) from ${shortPaths.join(',')}`)
+  }
+
+  if (lastError) {
+    return { parsed: parsedAll, error: lastError }
+  } else {
+    return { parsed: parsedAll }
+  }
+}
+
+// Populates process.env from .env file
+function config (options) {
+  // fallback to original dotenv if DOTENV_KEY is not set
+  if (_dotenvKey(options).length === 0) {
+    return DotenvModule.configDotenv(options)
+  }
+
+  const vaultPath = _vaultPath(options)
+
+  // dotenvKey exists but .env.vault file does not exist
+  if (!vaultPath) {
+    _warn(`You set DOTENV_KEY but you are missing a .env.vault file at ${vaultPath}. Did you forget to build it?`)
+
+    return DotenvModule.configDotenv(options)
+  }
+
+  return DotenvModule._configVault(options)
+}
+
+function decrypt (encrypted, keyStr) {
+  const key = Buffer.from(keyStr.slice(-64), 'hex')
+  let ciphertext = Buffer.from(encrypted, 'base64')
+
+  const nonce = ciphertext.subarray(0, 12)
+  const authTag = ciphertext.subarray(-16)
+  ciphertext = ciphertext.subarray(12, -16)
+
+  try {
+    const aesgcm = crypto.createDecipheriv('aes-256-gcm', key, nonce)
+    aesgcm.setAuthTag(authTag)
+    return `${aesgcm.update(ciphertext)}${aesgcm.final()}`
+  } catch (error) {
+    const isRange = error instanceof RangeError
+    const invalidKeyLength = error.message === 'Invalid key length'
+    const decryptionFailed = error.message === 'Unsupported state or unable to authenticate data'
+
+    if (isRange || invalidKeyLength) {
+      const err = new Error('INVALID_DOTENV_KEY: It must be 64 characters long (or more)')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    } else if (decryptionFailed) {
+      const err = new Error('DECRYPTION_FAILED: Please check your DOTENV_KEY')
+      err.code = 'DECRYPTION_FAILED'
+      throw err
+    } else {
+      throw error
+    }
+  }
+}
+
+// Populate process.env with parsed values
+function populate (processEnv, parsed, options = {}) {
+  const debug = Boolean(options && options.debug)
+  const override = Boolean(options && options.override)
+
+  if (typeof parsed !== 'object') {
+    const err = new Error('OBJECT_REQUIRED: Please check the processEnv argument being passed to populate')
+    err.code = 'OBJECT_REQUIRED'
+    throw err
+  }
+
+  // Set process.env
+  for (const key of Object.keys(parsed)) {
+    if (Object.prototype.hasOwnProperty.call(processEnv, key)) {
+      if (override === true) {
+        processEnv[key] = parsed[key]
+      }
+
+      if (debug) {
+        if (override === true) {
+          _debug(`"${key}" is already defined and WAS overwritten`)
+        } else {
+          _debug(`"${key}" is already defined and was NOT overwritten`)
+        }
+      }
+    } else {
+      processEnv[key] = parsed[key]
+    }
+  }
+}
+
+const DotenvModule = {
+  configDotenv,
+  _configVault,
+  _parseVault,
+  config,
+  decrypt,
+  parse,
+  populate
+}
+
+module.exports.configDotenv = DotenvModule.configDotenv
+module.exports._configVault = DotenvModule._configVault
+module.exports._parseVault = DotenvModule._parseVault
+module.exports.config = DotenvModule.config
+module.exports.decrypt = DotenvModule.decrypt
+module.exports.parse = DotenvModule.parse
+module.exports.populate = DotenvModule.populate
+
+module.exports = DotenvModule