update electron to v43

electron/node_modules/dotenv/lib/main.js

@@ -1,113 +1,386 @@
-/* @flow */
-/*::
-
-type DotenvParseOptions = {
-  debug?: boolean
-}
-
-// keys and values from src
-type DotenvParseOutput = { [string]: string }
-
-type DotenvConfigOptions = {
-  path?: string, // path to .env file
-  encoding?: string, // encoding of .env file
-  debug?: string // turn on logging for debugging purposes
-}
-
-type DotenvConfigOutput = {
-  parsed?: DotenvParseOutput,
-  error?: Error
-}
-
-*/
-
 const fs = require('fs')
 const path = require('path')
+const os = require('os')
+const crypto = require('crypto')
+const packageJson = require('../package.json')
 
-function log (message /*: string */) {
-  console.log(`[dotenv][DEBUG] ${message}`)
-}
+const version = packageJson.version
 
-const NEWLINE = '\n'
-const RE_INI_KEY_VAL = /^\s*([\w.-]+)\s*=\s*(.*)?\s*$/
-const RE_NEWLINES = /\\n/g
-const NEWLINES_MATCH = /\r\n|\n|\r/
+const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
 
-// Parses src into an Object
-function parse (src /*: string | Buffer */, options /*: ?DotenvParseOptions */) /*: DotenvParseOutput */ {
-  const debug = Boolean(options && options.debug)
+// Parse src into an Object
+function parse (src) {
   const obj = {}
 
-  // convert Buffers before splitting into lines and processing
-  src.toString().split(NEWLINES_MATCH).forEach(function (line, idx) {
-    // matching "KEY' and 'VAL' in 'KEY=VAL'
-    const keyValueArr = line.match(RE_INI_KEY_VAL)
-    // matched?
-    if (keyValueArr != null) {
-      const key = keyValueArr[1]
-      // default undefined or missing values to empty string
-      let val = (keyValueArr[2] || '')
-      const end = val.length - 1
-      const isDoubleQuoted = val[0] === '"' && val[end] === '"'
-      const isSingleQuoted = val[0] === "'" && val[end] === "'"
+  // Convert buffer to string
+  let lines = src.toString()
 
-      // if single or double quoted, remove quotes
-      if (isSingleQuoted || isDoubleQuoted) {
-        val = val.substring(1, end)
+  // Convert line breaks to same format
+  lines = lines.replace(/\r\n?/mg, '\n')
 
-        // if double quoted, expand newlines
-        if (isDoubleQuoted) {
-          val = val.replace(RE_NEWLINES, NEWLINE)
-        }
-      } else {
-        // remove surrounding whitespace
-        val = val.trim()
-      }
+  let match
+  while ((match = LINE.exec(lines)) != null) {
+    const key = match[1]
 
-      obj[key] = val
-    } else if (debug) {
-      log(`did not match key and value when parsing line ${idx + 1}: ${line}`)
+    // Default undefined or null to empty string
+    let value = (match[2] || '')
+
+    // Remove whitespace
+    value = value.trim()
+
+    // Check if double quoted
+    const maybeQuote = value[0]
+
+    // Remove surrounding quotes
+    value = value.replace(/^(['"`])([\s\S]*)\1$/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
 }
 
-// Populates process.env from .env file
-function config (options /*: ?DotenvConfigOptions */) /*: DotenvConfigOutput */ {
-  let dotenvPath = path.resolve(process.cwd(), '.env')
-  let encoding /*: string */ = 'utf8'
-  let debug = false
+function _parseVault (options) {
+  options = options || {}
 
-  if (options) {
-    if (options.path != null) {
-      dotenvPath = options.path
-    }
-    if (options.encoding != null) {
-      encoding = options.encoding
-    }
-    if (options.debug != null) {
-      debug = true
+  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 {
-    // specifying an encoding returns a string instead of a buffer
-    const parsed = parse(fs.readFileSync(dotenvPath, { encoding }), { debug })
+    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
+    }
 
-    Object.keys(parsed).forEach(function (key) {
-      if (!Object.prototype.hasOwnProperty.call(process.env, key)) {
-        process.env[key] = parsed[key]
-      } else if (debug) {
-        log(`"${key}" is already defined in \`process.env\` and will not be overwritten`)
+    throw error
+  }
+
+  // Get decrypt key
+  const key = uri.password
+  if (!key) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing key part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get environment
+  const environment = uri.searchParams.get('environment')
+  if (!environment) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing environment part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get ciphertext payload
+  const environmentKey = `DOTENV_VAULT_${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')
+  }
 
-    return { parsed }
-  } catch (e) {
-    return { error: e }
+  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 }
   }
 }
 
-module.exports.config = config
-module.exports.parse = parse
+// 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