Plan Checker, Wochenbericht-Fokus-Modus und Wandtafel-Dashboard-Feinschliff

Plan Checker (neues Studenten-Werkzeug, Seitenleiste + Admin → Plan-Checker-
Merkmale): lädt einen Bauplan als PDF hoch und lässt ChatGPT oder Claude ihn
gegen eine gepflegte Merkmalsliste prüfen. PDF-Rendering (pdf.js +
@napi-rs/canvas) berücksichtigt jetzt Ebenen (Optional Content Groups) und
WASM-Decoder korrekt, sendet eine Übersicht plus mehrere hochaufgelöste
Kachel-Ausschnitte statt eines einzelnen, zu groben Bilds, und beide Anbieter
bekommen dasselbe Bildmaterial. Jedes Prüfergebnis kann auf eines der
gesendeten Bilder als Beleg verweisen (bildIndex) — als Screenshot im
Ergebnis anklickbar, öffnet vergrößert in einem Modal statt eines von Chrome
blockierten target=_blank-Links auf eine data:-URL. KI-Modellname ist jetzt
pro Konto überschreibbar (Einstellungen → Mein Konto) für Drittanbieter mit
abweichendem Modell-Katalog.

Wochenbericht: dichte Kartenansicht bekommt einen Fokus-Modus — nur der
Kommentar liegt offen, Leistungsphasen und Beteiligte stecken in
aufklappbaren Abschnitten statt dauerhaft nebeneinander zu stehen.

Projektbereich: Terminplan-Auslastung rechnet jetzt exakt wie der
Auslastungs-Tab/die Wandtafel (statt einer unabhängigen, tageweisen
Schätzung); die LPH-Fortschrittsliste im Dashboard zeigt nur noch die
beauftragten Leistungsphasen.

Wandtafel: Dashboard-Kopf mit Kennzahlen-Reihe und Panel-Reihe neu
strukturiert, in den Blautönen des Firmenlogos; dieselbe Palette wurde
anschließend auf den gesamten App-weiten Dark Mode übernommen.

Dateibereinigung: nicht mehr benötigte Test-Uploads/Backups entfernt.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

node_modules/undici/lib/core/connect.js

@@ -0,0 +1,192 @@
+'use strict'
+
+const net = require('node:net')
+const assert = require('node:assert')
+const util = require('./util')
+const { InvalidArgumentError, ConnectTimeoutError } = require('./errors')
+
+let tls // include tls conditionally since it is not always available
+
+// TODO: session re-use does not wait for the first
+// connection to resolve the session and might therefore
+// resolve the same servername multiple times even when
+// re-use is enabled.
+
+const SessionCache = class WeakSessionCache {
+  constructor (maxCachedSessions) {
+    this._maxCachedSessions = maxCachedSessions
+    this._sessionCache = new Map()
+    this._sessionRegistry = new FinalizationRegistry((key) => {
+      if (this._sessionCache.size < this._maxCachedSessions) {
+        return
+      }
+
+      const ref = this._sessionCache.get(key)
+      if (ref !== undefined && ref.deref() === undefined) {
+        this._sessionCache.delete(key)
+      }
+    })
+  }
+
+  get (sessionKey) {
+    const ref = this._sessionCache.get(sessionKey)
+    return ref ? ref.deref() : null
+  }
+
+  set (sessionKey, session) {
+    if (this._maxCachedSessions === 0) {
+      return
+    }
+
+    if (this._sessionCache.has(sessionKey)) {
+      this._sessionCache.delete(sessionKey)
+    } else if (this._sessionCache.size >= this._maxCachedSessions) {
+      for (const [key, ref] of this._sessionCache) {
+        if (ref.deref() === undefined) {
+          this._sessionCache.delete(key)
+          return
+        }
+      }
+
+      const oldest = this._sessionCache.keys().next()
+      if (!oldest.done) {
+        this._sessionCache.delete(oldest.value)
+      }
+    }
+
+    this._sessionCache.set(sessionKey, new WeakRef(session))
+    this._sessionRegistry.register(session, sessionKey)
+  }
+}
+
+function buildConnector ({ allowH2, preferH2, useH2c, maxCachedSessions, socketPath, timeout, session: customSession, ...opts }) {
+  if (maxCachedSessions != null && (!Number.isInteger(maxCachedSessions) || maxCachedSessions < 0)) {
+    throw new InvalidArgumentError('maxCachedSessions must be a positive integer or zero')
+  }
+
+  const options = { path: socketPath, ...opts }
+  const sessionCache = new SessionCache(maxCachedSessions == null ? 100 : maxCachedSessions)
+  timeout = timeout == null ? 10e3 : timeout
+  allowH2 = allowH2 != null ? allowH2 : true
+  return function connect ({ hostname, host, protocol, port, servername, localAddress, httpSocket }, callback) {
+    let socket
+    if (protocol === 'https:') {
+      if (!tls) {
+        tls = require('node:tls')
+      }
+      servername = servername || options.servername || util.getServerName(host) || null
+
+      const sessionKey = servername || hostname
+      assert(sessionKey)
+
+      const session = customSession || sessionCache.get(sessionKey) || null
+
+      port = port || 443
+
+      socket = tls.connect({
+        highWaterMark: 16384, // TLS in node can't have bigger HWM anyway...
+        ...options,
+        servername,
+        session,
+        localAddress,
+        ALPNProtocols: allowH2 ? (preferH2 ? ['h2', 'http/1.1'] : ['http/1.1', 'h2']) : ['http/1.1'],
+        socket: httpSocket, // upgrade socket connection
+        port,
+        host: hostname
+      })
+
+      socket
+        .on('session', function (session) {
+          // TODO (fix): Can a session become invalid once established? Don't think so?
+          sessionCache.set(sessionKey, session)
+        })
+    } else {
+      assert(!httpSocket, 'httpSocket can only be sent on TLS update')
+
+      port = port || 80
+
+      const connectOptions = {
+        highWaterMark: 64 * 1024, // Same as nodejs fs streams.
+        ...options,
+        localAddress,
+        port,
+        host: hostname
+      }
+
+      const family = net.isIP(hostname)
+      if (family !== 0 && servername && servername !== hostname) {
+        connectOptions.host = servername
+        connectOptions.lookup = (_hostname, lookupOptions, cb) => {
+          if (lookupOptions.all) {
+            cb(null, [{ address: hostname, family }])
+          } else {
+            cb(null, hostname, family)
+          }
+        }
+      }
+
+      socket = net.connect(connectOptions)
+      if (useH2c === true) {
+        socket.alpnProtocol = 'h2'
+      }
+    }
+
+    // Set TCP keep alive options on the socket here instead of in connect() for the case of assigning the socket
+    if (options.keepAlive == null || options.keepAlive) {
+      const keepAliveInitialDelay = options.keepAliveInitialDelay === undefined ? 60e3 : options.keepAliveInitialDelay
+      socket.setKeepAlive(true, keepAliveInitialDelay)
+    }
+
+    const clearConnectTimeout = util.setupConnectTimeout(new WeakRef(socket), { timeout, hostname, port })
+
+    socket
+      .setNoDelay(true)
+      .once(protocol === 'https:' ? 'secureConnect' : 'connect', function () {
+        queueMicrotask(clearConnectTimeout)
+
+        if (callback) {
+          const cb = callback
+          callback = null
+          cb(null, this)
+        }
+      })
+      .on('error', function (err) {
+        queueMicrotask(clearConnectTimeout)
+
+        if (callback) {
+          const cb = callback
+          callback = null
+          cb(maybeNormalizeConnectError(err, this, { timeout, hostname, port }))
+        }
+      })
+
+    return socket
+  }
+}
+
+// `net.connect` with `autoSelectFamily` raises an `AggregateError` when every
+// attempted address fails. If any of those failures is a timeout, surface the
+// error as a `ConnectTimeoutError` so callers see the same error regardless of
+// which timer (Node's internal one or undici's `connectTimeout`) wins the race.
+// The original `AggregateError` is preserved on `.cause`.
+function maybeNormalizeConnectError (err, socket, opts) {
+  if (
+    err instanceof AggregateError &&
+    (err.code === 'ETIMEDOUT' || err.errors.some((e) => e != null && e.code === 'ETIMEDOUT'))
+  ) {
+    let message = 'Connect Timeout Error'
+    if (Array.isArray(socket.autoSelectFamilyAttemptedAddresses)) {
+      message += ` (attempted addresses: ${socket.autoSelectFamilyAttemptedAddresses.join(', ')},`
+    } else {
+      message += ` (attempted address: ${opts.hostname}:${opts.port},`
+    }
+    message += ` timeout: ${opts.timeout}ms)`
+
+    const wrapped = new ConnectTimeoutError(message)
+    wrapped.cause = err
+    return wrapped
+  }
+  return err
+}
+
+module.exports = buildConnector

node_modules/undici/lib/core/constants.js

@@ -0,0 +1,120 @@
+'use strict'
+
+/**
+ * @see https://developer.mozilla.org/docs/Web/HTTP/Headers
+ */
+const wellknownHeaderNames = /** @type {const} */ ([
+  'Accept',
+  'Accept-Encoding',
+  'Accept-Language',
+  'Accept-Ranges',
+  'Access-Control-Allow-Credentials',
+  'Access-Control-Allow-Headers',
+  'Access-Control-Allow-Methods',
+  'Access-Control-Allow-Origin',
+  'Access-Control-Expose-Headers',
+  'Access-Control-Max-Age',
+  'Access-Control-Request-Headers',
+  'Access-Control-Request-Method',
+  'Age',
+  'Allow',
+  'Alt-Svc',
+  'Alt-Used',
+  'Authorization',
+  'Cache-Control',
+  'Clear-Site-Data',
+  'Connection',
+  'Content-Disposition',
+  'Content-Encoding',
+  'Content-Language',
+  'Content-Length',
+  'Content-Location',
+  'Content-Range',
+  'Content-Security-Policy',
+  'Content-Security-Policy-Report-Only',
+  'Content-Type',
+  'Cookie',
+  'Cross-Origin-Embedder-Policy',
+  'Cross-Origin-Opener-Policy',
+  'Cross-Origin-Resource-Policy',
+  'Date',
+  'Device-Memory',
+  'Downlink',
+  'ECT',
+  'ETag',
+  'Expect',
+  'Expect-CT',
+  'Expires',
+  'Forwarded',
+  'From',
+  'Host',
+  'If-Match',
+  'If-Modified-Since',
+  'If-None-Match',
+  'If-Range',
+  'If-Unmodified-Since',
+  'Keep-Alive',
+  'Last-Modified',
+  'Link',
+  'Location',
+  'Max-Forwards',
+  'Origin',
+  'Permissions-Policy',
+  'Pragma',
+  'Proxy-Authenticate',
+  'Proxy-Authorization',
+  'RTT',
+  'Range',
+  'Referer',
+  'Referrer-Policy',
+  'Refresh',
+  'Retry-After',
+  'Sec-WebSocket-Accept',
+  'Sec-WebSocket-Extensions',
+  'Sec-WebSocket-Key',
+  'Sec-WebSocket-Protocol',
+  'Sec-WebSocket-Version',
+  'Server',
+  'Server-Timing',
+  'Service-Worker-Allowed',
+  'Service-Worker-Navigation-Preload',
+  'Set-Cookie',
+  'SourceMap',
+  'Strict-Transport-Security',
+  'Supports-Loading-Mode',
+  'TE',
+  'Timing-Allow-Origin',
+  'Trailer',
+  'Transfer-Encoding',
+  'Upgrade',
+  'Upgrade-Insecure-Requests',
+  'User-Agent',
+  'Vary',
+  'Via',
+  'WWW-Authenticate',
+  'X-Content-Type-Options',
+  'X-DNS-Prefetch-Control',
+  'X-Frame-Options',
+  'X-Permitted-Cross-Domain-Policies',
+  'X-Powered-By',
+  'X-Requested-With',
+  'X-XSS-Protection'
+])
+
+/** @type {Record<typeof wellknownHeaderNames[number]|Lowercase<typeof wellknownHeaderNames[number]>, string>} */
+const headerNameLowerCasedRecord = {}
+
+// Note: object prototypes should not be able to be referenced. e.g. `Object#hasOwnProperty`.
+Object.setPrototypeOf(headerNameLowerCasedRecord, null)
+
+for (let i = 0; i < wellknownHeaderNames.length; ++i) {
+  const key = wellknownHeaderNames[i]
+  const lowerCasedKey = key.toLowerCase()
+  headerNameLowerCasedRecord[key] = headerNameLowerCasedRecord[lowerCasedKey] =
+    lowerCasedKey
+}
+
+module.exports = {
+  wellknownHeaderNames,
+  headerNameLowerCasedRecord
+}

node_modules/undici/lib/core/diagnostics.js

@@ -0,0 +1,227 @@
+'use strict'
+
+const diagnosticsChannel = require('node:diagnostics_channel')
+const util = require('node:util')
+
+const undiciDebugLog = util.debuglog('undici')
+const fetchDebuglog = util.debuglog('fetch')
+const websocketDebuglog = util.debuglog('websocket')
+
+const channels = {
+  // Client
+  beforeConnect: diagnosticsChannel.channel('undici:client:beforeConnect'),
+  connected: diagnosticsChannel.channel('undici:client:connected'),
+  connectError: diagnosticsChannel.channel('undici:client:connectError'),
+  sendHeaders: diagnosticsChannel.channel('undici:client:sendHeaders'),
+  // Request
+  create: diagnosticsChannel.channel('undici:request:create'),
+  bodySent: diagnosticsChannel.channel('undici:request:bodySent'),
+  bodyChunkSent: diagnosticsChannel.channel('undici:request:bodyChunkSent'),
+  bodyChunkReceived: diagnosticsChannel.channel('undici:request:bodyChunkReceived'),
+  headers: diagnosticsChannel.channel('undici:request:headers'),
+  trailers: diagnosticsChannel.channel('undici:request:trailers'),
+  error: diagnosticsChannel.channel('undici:request:error'),
+  // WebSocket
+  open: diagnosticsChannel.channel('undici:websocket:open'),
+  close: diagnosticsChannel.channel('undici:websocket:close'),
+  socketError: diagnosticsChannel.channel('undici:websocket:socket_error'),
+  ping: diagnosticsChannel.channel('undici:websocket:ping'),
+  pong: diagnosticsChannel.channel('undici:websocket:pong'),
+  // ProxyAgent
+  proxyConnected: diagnosticsChannel.channel('undici:proxy:connected')
+}
+
+let isTrackingClientEvents = false
+
+function trackClientEvents (debugLog = undiciDebugLog) {
+  if (isTrackingClientEvents) {
+    return
+  }
+
+  // Check if any of the channels already have subscribers to prevent duplicate subscriptions
+  // This can happen when both Node.js built-in undici and undici as a dependency are present
+  if (channels.beforeConnect.hasSubscribers || channels.connected.hasSubscribers ||
+      channels.connectError.hasSubscribers || channels.sendHeaders.hasSubscribers) {
+    isTrackingClientEvents = true
+    return
+  }
+
+  isTrackingClientEvents = true
+
+  diagnosticsChannel.subscribe('undici:client:beforeConnect',
+    evt => {
+      const {
+        connectParams: { version, protocol, port, host }
+      } = evt
+      debugLog(
+        'connecting to %s%s using %s%s',
+        host,
+        port ? `:${port}` : '',
+        protocol,
+        version
+      )
+    })
+
+  diagnosticsChannel.subscribe('undici:client:connected',
+    evt => {
+      const {
+        connectParams: { version, protocol, port, host }
+      } = evt
+      debugLog(
+        'connected to %s%s using %s%s',
+        host,
+        port ? `:${port}` : '',
+        protocol,
+        version
+      )
+    })
+
+  diagnosticsChannel.subscribe('undici:client:connectError',
+    evt => {
+      const {
+        connectParams: { version, protocol, port, host },
+        error
+      } = evt
+      debugLog(
+        'connection to %s%s using %s%s errored - %s',
+        host,
+        port ? `:${port}` : '',
+        protocol,
+        version,
+        error.message
+      )
+    })
+
+  diagnosticsChannel.subscribe('undici:client:sendHeaders',
+    evt => {
+      const {
+        request: { method, path, origin }
+      } = evt
+      debugLog('sending request to %s %s%s', method, origin, path)
+    })
+}
+
+let isTrackingRequestEvents = false
+
+function trackRequestEvents (debugLog = undiciDebugLog) {
+  if (isTrackingRequestEvents) {
+    return
+  }
+
+  // Check if any of the channels already have subscribers to prevent duplicate subscriptions
+  // This can happen when both Node.js built-in undici and undici as a dependency are present
+  if (channels.headers.hasSubscribers || channels.trailers.hasSubscribers ||
+      channels.error.hasSubscribers) {
+    isTrackingRequestEvents = true
+    return
+  }
+
+  isTrackingRequestEvents = true
+
+  diagnosticsChannel.subscribe('undici:request:headers',
+    evt => {
+      const {
+        request: { method, path, origin },
+        response: { statusCode }
+      } = evt
+      debugLog(
+        'received response to %s %s%s - HTTP %d',
+        method,
+        origin,
+        path,
+        statusCode
+      )
+    })
+
+  diagnosticsChannel.subscribe('undici:request:trailers',
+    evt => {
+      const {
+        request: { method, path, origin }
+      } = evt
+      debugLog('trailers received from %s %s%s', method, origin, path)
+    })
+
+  diagnosticsChannel.subscribe('undici:request:error',
+    evt => {
+      const {
+        request: { method, path, origin },
+        error
+      } = evt
+      debugLog(
+        'request to %s %s%s errored - %s',
+        method,
+        origin,
+        path,
+        error.message
+      )
+    })
+}
+
+let isTrackingWebSocketEvents = false
+
+function trackWebSocketEvents (debugLog = websocketDebuglog) {
+  if (isTrackingWebSocketEvents) {
+    return
+  }
+
+  // Check if any of the channels already have subscribers to prevent duplicate subscriptions
+  // This can happen when both Node.js built-in undici and undici as a dependency are present
+  if (channels.open.hasSubscribers || channels.close.hasSubscribers ||
+      channels.socketError.hasSubscribers || channels.ping.hasSubscribers ||
+      channels.pong.hasSubscribers) {
+    isTrackingWebSocketEvents = true
+    return
+  }
+
+  isTrackingWebSocketEvents = true
+
+  diagnosticsChannel.subscribe('undici:websocket:open',
+    evt => {
+      if (evt.address != null) {
+        const { address, port } = evt.address
+        debugLog('connection opened %s%s', address, port ? `:${port}` : '')
+      } else {
+        debugLog('connection opened')
+      }
+    })
+
+  diagnosticsChannel.subscribe('undici:websocket:close',
+    evt => {
+      const { websocket, code, reason } = evt
+      debugLog(
+        'closed connection to %s - %s %s',
+        websocket.url,
+        code,
+        reason
+      )
+    })
+
+  diagnosticsChannel.subscribe('undici:websocket:socket_error',
+    err => {
+      debugLog('connection errored - %s', err.message)
+    })
+
+  diagnosticsChannel.subscribe('undici:websocket:ping',
+    evt => {
+      debugLog('ping received')
+    })
+
+  diagnosticsChannel.subscribe('undici:websocket:pong',
+    evt => {
+      debugLog('pong received')
+    })
+}
+
+if (undiciDebugLog.enabled || fetchDebuglog.enabled) {
+  trackClientEvents(fetchDebuglog.enabled ? fetchDebuglog : undiciDebugLog)
+  trackRequestEvents(fetchDebuglog.enabled ? fetchDebuglog : undiciDebugLog)
+}
+
+if (websocketDebuglog.enabled) {
+  trackClientEvents(undiciDebugLog.enabled ? undiciDebugLog : websocketDebuglog)
+  trackWebSocketEvents(websocketDebuglog)
+}
+
+module.exports = {
+  channels
+}

node_modules/undici/lib/core/errors.js

@@ -0,0 +1,497 @@
+'use strict'
+
+const kUndiciError = Symbol.for('undici.error.UND_ERR')
+class UndiciError extends Error {
+  constructor (message, options) {
+    super(message, options)
+    this.name = 'UndiciError'
+    this.code = 'UND_ERR'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kUndiciError] === true
+  }
+
+  get [kUndiciError] () {
+    return true
+  }
+}
+
+const kConnectTimeoutError = Symbol.for('undici.error.UND_ERR_CONNECT_TIMEOUT')
+class ConnectTimeoutError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'ConnectTimeoutError'
+    this.message = message || 'Connect Timeout Error'
+    this.code = 'UND_ERR_CONNECT_TIMEOUT'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kConnectTimeoutError] === true
+  }
+
+  get [kConnectTimeoutError] () {
+    return true
+  }
+}
+
+const kHeadersTimeoutError = Symbol.for('undici.error.UND_ERR_HEADERS_TIMEOUT')
+class HeadersTimeoutError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'HeadersTimeoutError'
+    this.message = message || 'Headers Timeout Error'
+    this.code = 'UND_ERR_HEADERS_TIMEOUT'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kHeadersTimeoutError] === true
+  }
+
+  get [kHeadersTimeoutError] () {
+    return true
+  }
+}
+
+const kHeadersOverflowError = Symbol.for('undici.error.UND_ERR_HEADERS_OVERFLOW')
+class HeadersOverflowError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'HeadersOverflowError'
+    this.message = message || 'Headers Overflow Error'
+    this.code = 'UND_ERR_HEADERS_OVERFLOW'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kHeadersOverflowError] === true
+  }
+
+  get [kHeadersOverflowError] () {
+    return true
+  }
+}
+
+const kBodyTimeoutError = Symbol.for('undici.error.UND_ERR_BODY_TIMEOUT')
+class BodyTimeoutError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'BodyTimeoutError'
+    this.message = message || 'Body Timeout Error'
+    this.code = 'UND_ERR_BODY_TIMEOUT'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kBodyTimeoutError] === true
+  }
+
+  get [kBodyTimeoutError] () {
+    return true
+  }
+}
+
+const kInvalidArgumentError = Symbol.for('undici.error.UND_ERR_INVALID_ARG')
+class InvalidArgumentError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'InvalidArgumentError'
+    this.message = message || 'Invalid Argument Error'
+    this.code = 'UND_ERR_INVALID_ARG'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kInvalidArgumentError] === true
+  }
+
+  get [kInvalidArgumentError] () {
+    return true
+  }
+}
+
+const kInvalidReturnValueError = Symbol.for('undici.error.UND_ERR_INVALID_RETURN_VALUE')
+class InvalidReturnValueError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'InvalidReturnValueError'
+    this.message = message || 'Invalid Return Value Error'
+    this.code = 'UND_ERR_INVALID_RETURN_VALUE'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kInvalidReturnValueError] === true
+  }
+
+  get [kInvalidReturnValueError] () {
+    return true
+  }
+}
+
+const kAbortError = Symbol.for('undici.error.UND_ERR_ABORT')
+class AbortError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'AbortError'
+    this.message = message || 'The operation was aborted'
+    this.code = 'UND_ERR_ABORT'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kAbortError] === true
+  }
+
+  get [kAbortError] () {
+    return true
+  }
+}
+
+const kRequestAbortedError = Symbol.for('undici.error.UND_ERR_ABORTED')
+class RequestAbortedError extends AbortError {
+  constructor (message) {
+    super(message)
+    this.name = 'AbortError'
+    this.message = message || 'Request aborted'
+    this.code = 'UND_ERR_ABORTED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kRequestAbortedError] === true
+  }
+
+  get [kRequestAbortedError] () {
+    return true
+  }
+}
+
+const kInformationalError = Symbol.for('undici.error.UND_ERR_INFO')
+class InformationalError extends UndiciError {
+  constructor (message, options) {
+    super(message, options)
+    this.name = 'InformationalError'
+    this.message = message || 'Request information'
+    this.code = 'UND_ERR_INFO'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kInformationalError] === true
+  }
+
+  get [kInformationalError] () {
+    return true
+  }
+}
+
+const kRequestContentLengthMismatchError = Symbol.for('undici.error.UND_ERR_REQ_CONTENT_LENGTH_MISMATCH')
+class RequestContentLengthMismatchError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'RequestContentLengthMismatchError'
+    this.message = message || 'Request body length does not match content-length header'
+    this.code = 'UND_ERR_REQ_CONTENT_LENGTH_MISMATCH'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kRequestContentLengthMismatchError] === true
+  }
+
+  get [kRequestContentLengthMismatchError] () {
+    return true
+  }
+}
+
+const kResponseContentLengthMismatchError = Symbol.for('undici.error.UND_ERR_RES_CONTENT_LENGTH_MISMATCH')
+class ResponseContentLengthMismatchError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'ResponseContentLengthMismatchError'
+    this.message = message || 'Response body length does not match content-length header'
+    this.code = 'UND_ERR_RES_CONTENT_LENGTH_MISMATCH'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kResponseContentLengthMismatchError] === true
+  }
+
+  get [kResponseContentLengthMismatchError] () {
+    return true
+  }
+}
+
+const kClientDestroyedError = Symbol.for('undici.error.UND_ERR_DESTROYED')
+class ClientDestroyedError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'ClientDestroyedError'
+    this.message = message || 'The client is destroyed'
+    this.code = 'UND_ERR_DESTROYED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kClientDestroyedError] === true
+  }
+
+  get [kClientDestroyedError] () {
+    return true
+  }
+}
+
+const kClientClosedError = Symbol.for('undici.error.UND_ERR_CLOSED')
+class ClientClosedError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'ClientClosedError'
+    this.message = message || 'The client is closed'
+    this.code = 'UND_ERR_CLOSED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kClientClosedError] === true
+  }
+
+  get [kClientClosedError] () {
+    return true
+  }
+}
+
+const kSocketError = Symbol.for('undici.error.UND_ERR_SOCKET')
+class SocketError extends UndiciError {
+  constructor (message, socket) {
+    super(message)
+    this.name = 'SocketError'
+    this.message = message || 'Socket error'
+    this.code = 'UND_ERR_SOCKET'
+    this.socket = socket
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kSocketError] === true
+  }
+
+  get [kSocketError] () {
+    return true
+  }
+}
+
+const kNotSupportedError = Symbol.for('undici.error.UND_ERR_NOT_SUPPORTED')
+class NotSupportedError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'NotSupportedError'
+    this.message = message || 'Not supported error'
+    this.code = 'UND_ERR_NOT_SUPPORTED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kNotSupportedError] === true
+  }
+
+  get [kNotSupportedError] () {
+    return true
+  }
+}
+
+const kBalancedPoolMissingUpstreamError = Symbol.for('undici.error.UND_ERR_BPL_MISSING_UPSTREAM')
+class BalancedPoolMissingUpstreamError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'MissingUpstreamError'
+    this.message = message || 'No upstream has been added to the BalancedPool'
+    this.code = 'UND_ERR_BPL_MISSING_UPSTREAM'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kBalancedPoolMissingUpstreamError] === true
+  }
+
+  get [kBalancedPoolMissingUpstreamError] () {
+    return true
+  }
+}
+
+const kHTTPParserError = Symbol.for('undici.error.UND_ERR_HTTP_PARSER')
+class HTTPParserError extends Error {
+  constructor (message, code, data) {
+    super(message)
+    this.name = 'HTTPParserError'
+    this.code = code ? `HPE_${code}` : undefined
+    this.data = data ? data.toString() : undefined
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kHTTPParserError] === true
+  }
+
+  get [kHTTPParserError] () {
+    return true
+  }
+}
+
+const kResponseExceededMaxSizeError = Symbol.for('undici.error.UND_ERR_RES_EXCEEDED_MAX_SIZE')
+class ResponseExceededMaxSizeError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'ResponseExceededMaxSizeError'
+    this.message = message || 'Response content exceeded max size'
+    this.code = 'UND_ERR_RES_EXCEEDED_MAX_SIZE'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kResponseExceededMaxSizeError] === true
+  }
+
+  get [kResponseExceededMaxSizeError] () {
+    return true
+  }
+}
+
+const kRequestRetryError = Symbol.for('undici.error.UND_ERR_REQ_RETRY')
+class RequestRetryError extends UndiciError {
+  constructor (message, code, { headers, data }) {
+    super(message)
+    this.name = 'RequestRetryError'
+    this.message = message || 'Request retry error'
+    this.code = 'UND_ERR_REQ_RETRY'
+    this.statusCode = code
+    this.data = data
+    this.headers = headers
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kRequestRetryError] === true
+  }
+
+  get [kRequestRetryError] () {
+    return true
+  }
+}
+
+const kResponseError = Symbol.for('undici.error.UND_ERR_RESPONSE')
+class ResponseError extends UndiciError {
+  constructor (message, code, { headers, body }) {
+    super(message)
+    this.name = 'ResponseError'
+    this.message = message || 'Response error'
+    this.code = 'UND_ERR_RESPONSE'
+    this.statusCode = code
+    this.body = body
+    this.headers = headers
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kResponseError] === true
+  }
+
+  get [kResponseError] () {
+    return true
+  }
+}
+
+const kSecureProxyConnectionError = Symbol.for('undici.error.UND_ERR_PRX_TLS')
+class SecureProxyConnectionError extends UndiciError {
+  constructor (cause, message, options = {}) {
+    super(message, { cause, ...options })
+    this.name = 'SecureProxyConnectionError'
+    this.message = message || 'Secure Proxy Connection failed'
+    this.code = 'UND_ERR_PRX_TLS'
+    this.cause = cause
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kSecureProxyConnectionError] === true
+  }
+
+  get [kSecureProxyConnectionError] () {
+    return true
+  }
+}
+
+const kProxyConnectionError = Symbol.for('undici.error.UND_ERR_PRX_CONN')
+class ProxyConnectionError extends UndiciError {
+  constructor (cause, message, options = {}) {
+    super(message, { cause, ...options })
+    this.name = 'ProxyConnectionError'
+    this.message = message || 'Proxy Connection failed'
+    this.code = 'UND_ERR_PRX_CONN'
+    this.cause = cause
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kProxyConnectionError] === true
+  }
+
+  get [kProxyConnectionError] () {
+    return true
+  }
+}
+
+const kMaxOriginsReachedError = Symbol.for('undici.error.UND_ERR_MAX_ORIGINS_REACHED')
+class MaxOriginsReachedError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'MaxOriginsReachedError'
+    this.message = message || 'Maximum allowed origins reached'
+    this.code = 'UND_ERR_MAX_ORIGINS_REACHED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kMaxOriginsReachedError] === true
+  }
+
+  get [kMaxOriginsReachedError] () {
+    return true
+  }
+}
+
+class Socks5ProxyError extends UndiciError {
+  constructor (message, code) {
+    super(message)
+    this.name = 'Socks5ProxyError'
+    this.message = message || 'SOCKS5 proxy error'
+    this.code = code || 'UND_ERR_SOCKS5'
+  }
+}
+
+const kMessageSizeExceededError = Symbol.for('undici.error.UND_ERR_WS_MESSAGE_SIZE_EXCEEDED')
+class MessageSizeExceededError extends UndiciError {
+  constructor (message) {
+    super(message)
+    this.name = 'MessageSizeExceededError'
+    this.message = message || 'Max decompressed message size exceeded'
+    this.code = 'UND_ERR_WS_MESSAGE_SIZE_EXCEEDED'
+  }
+
+  static [Symbol.hasInstance] (instance) {
+    return instance && instance[kMessageSizeExceededError] === true
+  }
+
+  get [kMessageSizeExceededError] () {
+    return true
+  }
+}
+
+module.exports = {
+  AbortError,
+  HTTPParserError,
+  UndiciError,
+  HeadersTimeoutError,
+  HeadersOverflowError,
+  BodyTimeoutError,
+  RequestContentLengthMismatchError,
+  ConnectTimeoutError,
+  InvalidArgumentError,
+  InvalidReturnValueError,
+  RequestAbortedError,
+  ClientDestroyedError,
+  ClientClosedError,
+  InformationalError,
+  SocketError,
+  NotSupportedError,
+  ResponseContentLengthMismatchError,
+  BalancedPoolMissingUpstreamError,
+  ResponseExceededMaxSizeError,
+  RequestRetryError,
+  ResponseError,
+  SecureProxyConnectionError,
+  ProxyConnectionError,
+  MaxOriginsReachedError,
+  Socks5ProxyError,
+  MessageSizeExceededError
+}

node_modules/undici/lib/core/request.js

@@ -0,0 +1,567 @@
+'use strict'
+
+const {
+  InvalidArgumentError,
+  NotSupportedError
+} = require('./errors')
+const assert = require('node:assert')
+const {
+  isValidHTTPToken,
+  isValidHeaderValue,
+  isStream,
+  destroy,
+  isBuffer,
+  isFormDataLike,
+  isIterable,
+  hasSafeIterator,
+  isBlobLike,
+  serializePathWithQuery,
+  parseHeaders,
+  assertRequestHandler,
+  getServerName,
+  normalizedMethodRecords,
+  getProtocolFromUrlString
+} = require('./util')
+const { channels } = require('./diagnostics.js')
+const { headerNameLowerCasedRecord } = require('./constants')
+
+// Verifies that a given path is valid does not contain control chars \x00 to \x20
+const invalidPathRegex = /[^\u0021-\u00ff]/
+
+function isValidContentLengthHeaderValue (val) {
+  if (typeof val !== 'string' || val.length === 0) {
+    return false
+  }
+
+  for (let i = 0; i < val.length; i++) {
+    const charCode = val.charCodeAt(i)
+    if (charCode < 48 || charCode > 57) {
+      return false
+    }
+  }
+
+  return true
+}
+
+const kHandler = Symbol('handler')
+const kController = Symbol('controller')
+const kResume = Symbol('resume')
+
+class RequestController {
+  #paused = false
+  #reason = null
+  #aborted = false
+  #abort
+
+  [kResume] = null
+
+  rawHeaders = null
+  rawTrailers = null
+
+  constructor (abort) {
+    this.#abort = abort
+  }
+
+  pause () {
+    this.#paused = true
+  }
+
+  resume () {
+    if (this.#paused) {
+      this.#paused = false
+      this[kResume]?.()
+    }
+  }
+
+  abort (reason) {
+    if (!this.#aborted) {
+      this.#aborted = true
+      this.#reason = reason
+      this.#abort(reason)
+    }
+  }
+
+  get aborted () {
+    return this.#aborted
+  }
+
+  get reason () {
+    return this.#reason
+  }
+
+  get paused () {
+    return this.#paused
+  }
+}
+
+class Request {
+  constructor (origin, {
+    path,
+    method,
+    body,
+    headers,
+    query,
+    idempotent,
+    blocking,
+    upgrade,
+    headersTimeout,
+    bodyTimeout,
+    reset,
+    expectContinue,
+    servername,
+    throwOnError,
+    maxRedirections,
+    typeOfService
+  }, handler) {
+    if (typeof path !== 'string') {
+      throw new InvalidArgumentError('path must be a string')
+    } else if (
+      path[0] !== '/' &&
+      !(path.startsWith('http://') || path.startsWith('https://')) &&
+      method !== 'CONNECT'
+    ) {
+      throw new InvalidArgumentError('path must be an absolute URL or start with a slash')
+    } else if (invalidPathRegex.test(path)) {
+      throw new InvalidArgumentError('invalid request path')
+    }
+
+    if (typeof method !== 'string') {
+      throw new InvalidArgumentError('method must be a string')
+    } else if (normalizedMethodRecords[method] === undefined && !isValidHTTPToken(method)) {
+      throw new InvalidArgumentError('invalid request method')
+    }
+
+    if (upgrade && typeof upgrade !== 'string') {
+      throw new InvalidArgumentError('upgrade must be a string')
+    }
+
+    if (upgrade && !isValidHeaderValue(upgrade)) {
+      throw new InvalidArgumentError('invalid upgrade header')
+    }
+
+    if (headersTimeout != null && (!Number.isFinite(headersTimeout) || headersTimeout < 0)) {
+      throw new InvalidArgumentError('invalid headersTimeout')
+    }
+
+    if (bodyTimeout != null && (!Number.isFinite(bodyTimeout) || bodyTimeout < 0)) {
+      throw new InvalidArgumentError('invalid bodyTimeout')
+    }
+
+    if (reset != null && typeof reset !== 'boolean') {
+      throw new InvalidArgumentError('invalid reset')
+    }
+
+    if (expectContinue != null && typeof expectContinue !== 'boolean') {
+      throw new InvalidArgumentError('invalid expectContinue')
+    }
+
+    if (throwOnError != null) {
+      throw new InvalidArgumentError('invalid throwOnError')
+    }
+
+    if (maxRedirections != null && maxRedirections !== 0) {
+      throw new InvalidArgumentError('maxRedirections is not supported, use the redirect interceptor')
+    }
+
+    if (typeOfService != null && (!Number.isInteger(typeOfService) || typeOfService < 0 || typeOfService > 255)) {
+      throw new InvalidArgumentError('typeOfService must be an integer between 0 and 255')
+    }
+
+    this.headersTimeout = headersTimeout
+
+    this.bodyTimeout = bodyTimeout
+
+    this.method = method
+
+    this.typeOfService = typeOfService
+
+    this.abort = null
+
+    if (body == null) {
+      this.body = null
+    } else if (isStream(body)) {
+      this.body = body
+
+      const rState = this.body._readableState
+      if (!rState || !rState.autoDestroy) {
+        this.endHandler = function autoDestroy () {
+          destroy(this)
+        }
+        this.body.on('end', this.endHandler)
+      }
+
+      this.errorHandler = err => {
+        if (this.abort) {
+          this.abort(err)
+        } else {
+          this.error = err
+        }
+      }
+      this.body.on('error', this.errorHandler)
+    } else if (isBuffer(body)) {
+      this.body = body.byteLength ? body : null
+    } else if (ArrayBuffer.isView(body)) {
+      this.body = body.buffer.byteLength ? Buffer.from(body.buffer, body.byteOffset, body.byteLength) : null
+    } else if (body instanceof ArrayBuffer) {
+      this.body = body.byteLength ? Buffer.from(body) : null
+    } else if (typeof body === 'string') {
+      this.body = body.length ? Buffer.from(body) : null
+    } else if (isFormDataLike(body) || isIterable(body) || isBlobLike(body)) {
+      this.body = body
+    } else {
+      throw new InvalidArgumentError('body must be a string, a Buffer, a Readable stream, an iterable, or an async iterable')
+    }
+
+    this.completed = false
+    this.aborted = false
+
+    this.upgrade = upgrade || null
+
+    this.path = query ? serializePathWithQuery(path, query) : path
+
+    // TODO: shall we maybe standardize it to an URL object?
+    this.origin = origin
+
+    this.protocol = getProtocolFromUrlString(origin)
+
+    this.idempotent = idempotent == null
+      ? method === 'HEAD' || method === 'GET' || method === 'QUERY'
+      : idempotent
+
+    this.blocking = blocking ?? this.method !== 'HEAD'
+
+    this.reset = reset == null ? null : reset
+
+    this.host = null
+
+    this.contentLength = null
+
+    this.contentType = null
+
+    this.headers = []
+
+    // Only for H2
+    this.expectContinue = expectContinue != null ? expectContinue : false
+
+    if (Array.isArray(headers)) {
+      if (headers.length % 2 !== 0) {
+        throw new InvalidArgumentError('headers array must be even')
+      }
+      for (let i = 0; i < headers.length; i += 2) {
+        processHeader(this, headers[i], headers[i + 1])
+      }
+    } else if (headers && typeof headers === 'object') {
+      if (hasSafeIterator(headers)) {
+        for (const header of headers) {
+          if (!Array.isArray(header) || header.length !== 2) {
+            throw new InvalidArgumentError('headers must be in key-value pair format')
+          }
+          processHeader(this, header[0], header[1])
+        }
+      } else {
+        const keys = Object.keys(headers)
+        for (let i = 0; i < keys.length; ++i) {
+          processHeader(this, keys[i], headers[keys[i]])
+        }
+      }
+    } else if (headers != null) {
+      throw new InvalidArgumentError('headers must be an object or an array')
+    }
+
+    assertRequestHandler(handler, method, upgrade)
+
+    this.servername = servername || getServerName(this.host) || null
+
+    this[kHandler] = handler
+
+    if (channels.create.hasSubscribers) {
+      channels.create.publish({ request: this })
+    }
+  }
+
+  onBodySent (chunk) {
+    if (channels.bodyChunkSent.hasSubscribers) {
+      channels.bodyChunkSent.publish({ request: this, chunk })
+    }
+    if (this[kHandler].onBodySent) {
+      try {
+        return this[kHandler].onBodySent(chunk)
+      } catch (err) {
+        this.abort(err)
+      }
+    }
+  }
+
+  onRequestSent () {
+    if (channels.bodySent.hasSubscribers) {
+      channels.bodySent.publish({ request: this })
+    }
+
+    if (this[kHandler].onRequestSent) {
+      try {
+        return this[kHandler].onRequestSent()
+      } catch (err) {
+        this.abort(err)
+      }
+    }
+  }
+
+  onRequestStart (abort, context) {
+    assert(!this.aborted)
+    assert(!this.completed)
+
+    this[kController] = new RequestController(abort)
+
+    if (this.error) {
+      this[kController].abort(this.error)
+      return
+    }
+
+    this.abort = abort
+    return this[kHandler].onRequestStart(this[kController], context)
+  }
+
+  onResponseStarted () {
+    return this[kHandler].onResponseStarted?.()
+  }
+
+  onResponseStart (statusCode, headers, resume, statusText) {
+    assert(!this.aborted)
+    assert(!this.completed)
+
+    if (channels.headers.hasSubscribers) {
+      channels.headers.publish({ request: this, response: { statusCode, headers, statusText } })
+    }
+
+    const controller = this[kController]
+    if (controller) {
+      controller[kResume] = resume
+      controller.rawHeaders = headers
+    }
+
+    const parsedHeaders = Array.isArray(headers) ? parseHeaders(headers) : headers
+
+    try {
+      this[kHandler].onResponseStart?.(controller, statusCode, parsedHeaders, statusText)
+      return !controller?.paused
+    } catch (err) {
+      this.abort(err)
+      return false
+    }
+  }
+
+  onResponseData (chunk) {
+    assert(!this.aborted)
+    assert(!this.completed)
+
+    if (channels.bodyChunkReceived.hasSubscribers) {
+      channels.bodyChunkReceived.publish({ request: this, chunk })
+    }
+
+    const controller = this[kController]
+    try {
+      this[kHandler].onResponseData?.(controller, chunk)
+      return !controller?.paused
+    } catch (err) {
+      this.abort(err)
+      return false
+    }
+  }
+
+  /**
+   * @param {number} statusCode
+   * @param {Buffer[]|string[]|import('../../types/header.d.ts').IncomingHttpHeaders} headers
+   * @param {import('node:stream').Duplex} socket
+   * @param {string} [statusText]
+   */
+  onRequestUpgrade (statusCode, headers, socket, statusText = '') {
+    this.onFinally()
+
+    assert(!this.aborted)
+    assert(!this.completed)
+
+    if (channels.headers.hasSubscribers) {
+      channels.headers.publish({ request: this, response: { statusCode, headers, statusText } })
+    }
+
+    const controller = this[kController]
+    if (controller) {
+      controller.rawHeaders = headers
+    }
+
+    const parsedHeaders = Array.isArray(headers) ? parseHeaders(headers) : headers
+
+    const result = this[kHandler].onRequestUpgrade?.(controller, statusCode, parsedHeaders, socket)
+
+    if (!this.aborted) {
+      this.completed = true
+      if (channels.trailers.hasSubscribers) {
+        channels.trailers.publish({ request: this, trailers: [] })
+      }
+    }
+
+    return result
+  }
+
+  onResponseEnd (trailers) {
+    this.onFinally()
+
+    assert(!this.aborted)
+    assert(!this.completed)
+
+    this.completed = true
+    if (channels.trailers.hasSubscribers) {
+      channels.trailers.publish({ request: this, trailers })
+    }
+
+    const controller = this[kController]
+    if (controller) {
+      controller.rawTrailers = trailers
+    }
+
+    const parsedTrailers = Array.isArray(trailers) ? parseHeaders(trailers) : trailers
+
+    try {
+      return this[kHandler].onResponseEnd?.(controller, parsedTrailers)
+    } catch (err) {
+      // TODO (fix): This might be a bad idea?
+      this.onResponseError(err)
+    }
+  }
+
+  onResponseError (error) {
+    this.onFinally()
+
+    if (channels.error.hasSubscribers) {
+      channels.error.publish({ request: this, error })
+    }
+
+    if (this.aborted) {
+      return
+    }
+    this.aborted = true
+
+    const controller = this[kController]
+
+    return this[kHandler].onResponseError?.(controller, error)
+  }
+
+  onFinally () {
+    if (this.errorHandler) {
+      this.body.off('error', this.errorHandler)
+      this.errorHandler = null
+    }
+
+    if (this.endHandler) {
+      this.body.off('end', this.endHandler)
+      this.endHandler = null
+    }
+  }
+
+  addHeader (key, value) {
+    processHeader(this, key, value)
+    return this
+  }
+}
+
+function processHeader (request, key, val) {
+  if (val && (typeof val === 'object' && !Array.isArray(val))) {
+    throw new InvalidArgumentError(`invalid ${key} header`)
+  } else if (val === undefined) {
+    return
+  }
+
+  let headerName = headerNameLowerCasedRecord[key]
+
+  if (headerName === undefined) {
+    headerName = key.toLowerCase()
+    if (headerNameLowerCasedRecord[headerName] === undefined && !isValidHTTPToken(headerName)) {
+      throw new InvalidArgumentError('invalid header key')
+    }
+  }
+
+  if (Array.isArray(val)) {
+    const arr = []
+    for (let i = 0; i < val.length; i++) {
+      if (typeof val[i] === 'string') {
+        if (!isValidHeaderValue(val[i])) {
+          throw new InvalidArgumentError(`invalid ${key} header`)
+        }
+        arr.push(val[i])
+      } else if (val[i] === null) {
+        arr.push('')
+      } else if (typeof val[i] === 'object') {
+        throw new InvalidArgumentError(`invalid ${key} header`)
+      } else {
+        // Coerce primitives (and reject unsafe coercions such as functions
+        // with a crafted toString/Symbol.toPrimitive).
+        const str = `${val[i]}`
+        if (!isValidHeaderValue(str)) {
+          throw new InvalidArgumentError(`invalid ${key} header`)
+        }
+        arr.push(str)
+      }
+    }
+    val = arr
+  } else if (typeof val === 'string') {
+    if (!isValidHeaderValue(val)) {
+      throw new InvalidArgumentError(`invalid ${key} header`)
+    }
+  } else if (val === null) {
+    val = ''
+  } else {
+    // Coerce primitives (and reject unsafe coercions such as functions
+    // with a crafted toString/Symbol.toPrimitive).
+    val = `${val}`
+    if (!isValidHeaderValue(val)) {
+      throw new InvalidArgumentError(`invalid ${key} header`)
+    }
+  }
+
+  if (headerName === 'host') {
+    if (request.host !== null) {
+      throw new InvalidArgumentError('duplicate host header')
+    }
+    if (typeof val !== 'string') {
+      throw new InvalidArgumentError('invalid host header')
+    }
+    // Consumed by Client
+    request.host = val
+  } else if (headerName === 'content-length') {
+    if (request.contentLength !== null) {
+      throw new InvalidArgumentError('duplicate content-length header')
+    }
+    if (!isValidContentLengthHeaderValue(val)) {
+      throw new InvalidArgumentError('invalid content-length header')
+    }
+    request.contentLength = parseInt(val, 10)
+  } else if (request.contentType === null && headerName === 'content-type') {
+    request.contentType = val
+    request.headers.push(key, val)
+  } else if (headerName === 'transfer-encoding' || headerName === 'keep-alive' || headerName === 'upgrade') {
+    throw new InvalidArgumentError(`invalid ${headerName} header`)
+  } else if (headerName === 'connection') {
+    // Per RFC 7230 Section 6.1, Connection header can contain
+    // a comma-separated list of connection option tokens (header names)
+    const value = typeof val === 'string' ? val : null
+    if (value === null) {
+      throw new InvalidArgumentError('invalid connection header')
+    }
+
+    for (const token of value.toLowerCase().split(',')) {
+      const trimmed = token.trim()
+      if (!isValidHTTPToken(trimmed)) {
+        throw new InvalidArgumentError('invalid connection header')
+      }
+      if (trimmed === 'close') {
+        request.reset = true
+      }
+    }
+  } else if (headerName === 'expect') {
+    throw new NotSupportedError('expect header not supported')
+  } else {
+    request.headers.push(key, val)
+  }
+}
+
+module.exports = Request

node_modules/undici/lib/core/socks5-client.js

@@ -0,0 +1,422 @@
+'use strict'
+
+const { EventEmitter } = require('node:events')
+const { Buffer } = require('node:buffer')
+const { InvalidArgumentError, Socks5ProxyError } = require('./errors')
+const { debuglog } = require('node:util')
+const { parseAddress } = require('./socks5-utils')
+
+const debug = debuglog('undici:socks5')
+const EMPTY_BUFFER = Buffer.alloc(0)
+
+// SOCKS5 constants
+const SOCKS_VERSION = 0x05
+
+// Authentication methods
+const AUTH_METHODS = {
+  NO_AUTH: 0x00,
+  GSSAPI: 0x01,
+  USERNAME_PASSWORD: 0x02,
+  NO_ACCEPTABLE: 0xFF
+}
+
+// SOCKS5 commands
+const COMMANDS = {
+  CONNECT: 0x01,
+  BIND: 0x02,
+  UDP_ASSOCIATE: 0x03
+}
+
+// Address types
+const ADDRESS_TYPES = {
+  IPV4: 0x01,
+  DOMAIN: 0x03,
+  IPV6: 0x04
+}
+
+// Reply codes
+const REPLY_CODES = {
+  SUCCEEDED: 0x00,
+  GENERAL_FAILURE: 0x01,
+  CONNECTION_NOT_ALLOWED: 0x02,
+  NETWORK_UNREACHABLE: 0x03,
+  HOST_UNREACHABLE: 0x04,
+  CONNECTION_REFUSED: 0x05,
+  TTL_EXPIRED: 0x06,
+  COMMAND_NOT_SUPPORTED: 0x07,
+  ADDRESS_TYPE_NOT_SUPPORTED: 0x08
+}
+
+// State machine states
+const STATES = {
+  INITIAL: 'initial',
+  HANDSHAKING: 'handshaking',
+  AUTHENTICATING: 'authenticating',
+  AUTHENTICATED: 'authenticated',
+  CONNECTING: 'connecting',
+  CONNECTED: 'connected',
+  ERROR: 'error',
+  CLOSED: 'closed'
+}
+
+/**
+ * SOCKS5 client implementation
+ * Handles SOCKS5 protocol negotiation and connection establishment
+ */
+class Socks5Client extends EventEmitter {
+  constructor (socket, options = {}) {
+    super()
+
+    if (!socket) {
+      throw new InvalidArgumentError('socket is required')
+    }
+
+    this.socket = socket
+    this.options = options
+    this.state = STATES.INITIAL
+    this.buffer = EMPTY_BUFFER
+    this.onSocketData = this.onData.bind(this)
+    this.onSocketError = this.onError.bind(this)
+    this.onSocketClose = this.onClose.bind(this)
+
+    // Authentication settings
+    this.authMethods = []
+    if (options.username && options.password) {
+      this.authMethods.push(AUTH_METHODS.USERNAME_PASSWORD)
+    }
+    this.authMethods.push(AUTH_METHODS.NO_AUTH)
+
+    // Socket event handlers
+    this.socket.on('data', this.onSocketData)
+    this.socket.on('error', this.onSocketError)
+    this.socket.on('close', this.onSocketClose)
+  }
+
+  /**
+   * Handle incoming data from the socket
+   */
+  onData (data) {
+    debug('received data', data.length, 'bytes in state', this.state)
+    this.buffer = Buffer.concat([this.buffer, data])
+
+    try {
+      switch (this.state) {
+        case STATES.HANDSHAKING:
+          this.handleHandshakeResponse()
+          break
+        case STATES.AUTHENTICATING:
+          this.handleAuthResponse()
+          break
+        case STATES.CONNECTING:
+          this.handleConnectResponse()
+          break
+      }
+    } catch (err) {
+      this.onError(err)
+    }
+  }
+
+  /**
+   * Handle socket errors
+   */
+  onError (err) {
+    debug('socket error', err)
+    this.state = STATES.ERROR
+    this.emit('error', err)
+    this.destroy()
+  }
+
+  /**
+   * Handle socket close
+   */
+  onClose () {
+    debug('socket closed')
+    this.state = STATES.CLOSED
+    this.emit('close')
+  }
+
+  /**
+   * Destroy the client and underlying socket
+   */
+  destroy () {
+    if (this.socket && !this.socket.destroyed) {
+      this.socket.destroy()
+    }
+  }
+
+  markAuthenticated () {
+    this.state = STATES.AUTHENTICATED
+    this.emit('authenticated')
+  }
+
+  /**
+   * Start the SOCKS5 handshake
+   */
+  handshake () {
+    if (this.state !== STATES.INITIAL) {
+      throw new InvalidArgumentError('Handshake already started')
+    }
+
+    debug('starting handshake with', this.authMethods.length, 'auth methods')
+    this.state = STATES.HANDSHAKING
+
+    // Build handshake request
+    // +----+----------+----------+
+    // |VER | NMETHODS | METHODS  |
+    // +----+----------+----------+
+    // | 1  |    1     | 1 to 255 |
+    // +----+----------+----------+
+    const request = Buffer.alloc(2 + this.authMethods.length)
+    request[0] = SOCKS_VERSION
+    request[1] = this.authMethods.length
+    this.authMethods.forEach((method, i) => {
+      request[2 + i] = method
+    })
+
+    this.socket.write(request)
+  }
+
+  /**
+   * Handle handshake response from server
+   */
+  handleHandshakeResponse () {
+    if (this.buffer.length < 2) {
+      return // Not enough data yet
+    }
+
+    const version = this.buffer[0]
+    const method = this.buffer[1]
+
+    if (version !== SOCKS_VERSION) {
+      throw new Socks5ProxyError(`Invalid SOCKS version: ${version}`, 'UND_ERR_SOCKS5_VERSION')
+    }
+
+    if (method === AUTH_METHODS.NO_ACCEPTABLE) {
+      throw new Socks5ProxyError('No acceptable authentication method', 'UND_ERR_SOCKS5_AUTH_REJECTED')
+    }
+
+    this.buffer = this.buffer.subarray(2)
+    debug('server selected auth method', method)
+
+    if (method === AUTH_METHODS.NO_AUTH) {
+      this.markAuthenticated()
+    } else if (method === AUTH_METHODS.USERNAME_PASSWORD) {
+      this.state = STATES.AUTHENTICATING
+      this.sendAuthRequest()
+    } else {
+      throw new Socks5ProxyError(`Unsupported authentication method: ${method}`, 'UND_ERR_SOCKS5_AUTH_METHOD')
+    }
+  }
+
+  /**
+   * Send username/password authentication request
+   */
+  sendAuthRequest () {
+    const { username, password } = this.options
+
+    if (!username || !password) {
+      throw new InvalidArgumentError('Username and password required for authentication')
+    }
+
+    debug('sending username/password auth')
+
+    // Username/Password authentication request (RFC 1929)
+    // +----+------+----------+------+----------+
+    // |VER | ULEN |  UNAME   | PLEN |  PASSWD  |
+    // +----+------+----------+------+----------+
+    // | 1  |  1   | 1 to 255 |  1   | 1 to 255 |
+    // +----+------+----------+------+----------+
+    const usernameBuffer = Buffer.from(username)
+    const passwordBuffer = Buffer.from(password)
+
+    if (usernameBuffer.length > 255 || passwordBuffer.length > 255) {
+      throw new InvalidArgumentError('Username or password too long')
+    }
+
+    const request = Buffer.alloc(3 + usernameBuffer.length + passwordBuffer.length)
+    request[0] = 0x01 // Sub-negotiation version
+    request[1] = usernameBuffer.length
+    usernameBuffer.copy(request, 2)
+    request[2 + usernameBuffer.length] = passwordBuffer.length
+    passwordBuffer.copy(request, 3 + usernameBuffer.length)
+
+    this.socket.write(request)
+  }
+
+  /**
+   * Handle authentication response
+   */
+  handleAuthResponse () {
+    if (this.buffer.length < 2) {
+      return // Not enough data yet
+    }
+
+    const version = this.buffer[0]
+    const status = this.buffer[1]
+
+    if (version !== 0x01) {
+      throw new Socks5ProxyError(`Invalid auth sub-negotiation version: ${version}`, 'UND_ERR_SOCKS5_AUTH_VERSION')
+    }
+
+    if (status !== 0x00) {
+      throw new Socks5ProxyError('Authentication failed', 'UND_ERR_SOCKS5_AUTH_FAILED')
+    }
+
+    this.buffer = this.buffer.subarray(2)
+    debug('authentication successful')
+    this.markAuthenticated()
+  }
+
+  /**
+   * Send CONNECT command
+   * @param {string} address - Target address (IP or domain)
+   * @param {number} port - Target port
+   */
+  connect (address, port) {
+    if (this.state === STATES.CONNECTING || this.state === STATES.CONNECTED) {
+      throw new InvalidArgumentError('Connection already in progress')
+    }
+
+    if (this.state !== STATES.AUTHENTICATED) {
+      throw new InvalidArgumentError('Client must be authenticated before CONNECT')
+    }
+
+    debug('connecting to', address, port)
+    this.state = STATES.CONNECTING
+
+    const request = this.buildConnectRequest(COMMANDS.CONNECT, address, port)
+    this.socket.write(request)
+  }
+
+  /**
+   * Build a SOCKS5 request
+   */
+  buildConnectRequest (command, address, port) {
+    // Parse address to determine type and buffer
+    const { type: addressType, buffer: addressBuffer } = parseAddress(address)
+
+    // Build request
+    // +----+-----+-------+------+----------+----------+
+    // |VER | CMD |  RSV  | ATYP | DST.ADDR | DST.PORT |
+    // +----+-----+-------+------+----------+----------+
+    // | 1  |  1  | X'00' |  1   | Variable |    2     |
+    // +----+-----+-------+------+----------+----------+
+    const request = Buffer.alloc(4 + addressBuffer.length + 2)
+    request[0] = SOCKS_VERSION
+    request[1] = command
+    request[2] = 0x00 // Reserved
+    request[3] = addressType
+    addressBuffer.copy(request, 4)
+    request.writeUInt16BE(port, 4 + addressBuffer.length)
+
+    return request
+  }
+
+  /**
+   * Handle CONNECT response
+   */
+  handleConnectResponse () {
+    if (this.buffer.length < 4) {
+      return // Not enough data for header
+    }
+
+    const version = this.buffer[0]
+    const reply = this.buffer[1]
+    const addressType = this.buffer[3]
+
+    if (version !== SOCKS_VERSION) {
+      throw new Socks5ProxyError(`Invalid SOCKS version in reply: ${version}`, 'UND_ERR_SOCKS5_REPLY_VERSION')
+    }
+
+    // Calculate the expected response length
+    let responseLength = 4 // VER + REP + RSV + ATYP
+    if (addressType === ADDRESS_TYPES.IPV4) {
+      responseLength += 4 + 2 // IPv4 + port
+    } else if (addressType === ADDRESS_TYPES.DOMAIN) {
+      if (this.buffer.length < 5) {
+        return // Need domain length byte
+      }
+      responseLength += 1 + this.buffer[4] + 2 // length byte + domain + port
+    } else if (addressType === ADDRESS_TYPES.IPV6) {
+      responseLength += 16 + 2 // IPv6 + port
+    } else {
+      throw new Socks5ProxyError(`Invalid address type in reply: ${addressType}`, 'UND_ERR_SOCKS5_ADDR_TYPE')
+    }
+
+    if (this.buffer.length < responseLength) {
+      return // Not enough data for full response
+    }
+
+    if (reply !== REPLY_CODES.SUCCEEDED) {
+      const errorMessage = this.getReplyErrorMessage(reply)
+      throw new Socks5ProxyError(`SOCKS5 connection failed: ${errorMessage}`, `UND_ERR_SOCKS5_REPLY_${reply}`)
+    }
+
+    // Parse bound address and port
+    let boundAddress
+    let offset = 4
+
+    if (addressType === ADDRESS_TYPES.IPV4) {
+      boundAddress = Array.from(this.buffer.subarray(offset, offset + 4)).join('.')
+      offset += 4
+    } else if (addressType === ADDRESS_TYPES.DOMAIN) {
+      const domainLength = this.buffer[offset]
+      offset += 1
+      boundAddress = this.buffer.subarray(offset, offset + domainLength).toString()
+      offset += domainLength
+    } else if (addressType === ADDRESS_TYPES.IPV6) {
+      // Parse IPv6 address from 16-byte buffer
+      const parts = []
+      for (let i = 0; i < 8; i++) {
+        const value = this.buffer.readUInt16BE(offset + i * 2)
+        parts.push(value.toString(16))
+      }
+      boundAddress = parts.join(':')
+      offset += 16
+    }
+
+    const boundPort = this.buffer.readUInt16BE(offset)
+
+    this.buffer = EMPTY_BUFFER
+    this.state = STATES.CONNECTED
+    this.socket.removeListener('data', this.onSocketData)
+
+    debug('connected, bound address:', boundAddress, 'port:', boundPort)
+    this.emit('connected', { address: boundAddress, port: boundPort })
+  }
+
+  /**
+   * Get human-readable error message for reply code
+   */
+  getReplyErrorMessage (reply) {
+    switch (reply) {
+      case REPLY_CODES.GENERAL_FAILURE:
+        return 'General SOCKS server failure'
+      case REPLY_CODES.CONNECTION_NOT_ALLOWED:
+        return 'Connection not allowed by ruleset'
+      case REPLY_CODES.NETWORK_UNREACHABLE:
+        return 'Network unreachable'
+      case REPLY_CODES.HOST_UNREACHABLE:
+        return 'Host unreachable'
+      case REPLY_CODES.CONNECTION_REFUSED:
+        return 'Connection refused'
+      case REPLY_CODES.TTL_EXPIRED:
+        return 'TTL expired'
+      case REPLY_CODES.COMMAND_NOT_SUPPORTED:
+        return 'Command not supported'
+      case REPLY_CODES.ADDRESS_TYPE_NOT_SUPPORTED:
+        return 'Address type not supported'
+      default:
+        return `Unknown error code: ${reply}`
+    }
+  }
+}
+
+module.exports = {
+  Socks5Client,
+  AUTH_METHODS,
+  COMMANDS,
+  ADDRESS_TYPES,
+  REPLY_CODES,
+  STATES
+}

node_modules/undici/lib/core/socks5-utils.js

@@ -0,0 +1,212 @@
+'use strict'
+
+const { Buffer } = require('node:buffer')
+const net = require('node:net')
+const { InvalidArgumentError } = require('./errors')
+
+/**
+ * Parse an address and determine its type
+ * @param {string} address - The address to parse
+ * @returns {{type: number, buffer: Buffer}} Address type and buffer
+ */
+function parseAddress (address) {
+  // Check if it's an IPv4 address
+  if (net.isIPv4(address)) {
+    const parts = address.split('.').map(Number)
+    return {
+      type: 0x01, // IPv4
+      buffer: Buffer.from(parts)
+    }
+  }
+
+  // Check if it's an IPv6 address
+  if (net.isIPv6(address)) {
+    return {
+      type: 0x04, // IPv6
+      buffer: parseIPv6(address)
+    }
+  }
+
+  // Otherwise, treat as domain name
+  const domainBuffer = Buffer.from(address, 'utf8')
+  if (domainBuffer.length > 255) {
+    throw new InvalidArgumentError('Domain name too long (max 255 bytes)')
+  }
+
+  return {
+    type: 0x03, // Domain
+    buffer: Buffer.concat([Buffer.from([domainBuffer.length]), domainBuffer])
+  }
+}
+
+/**
+ * Parse IPv6 address to buffer
+ * @param {string} address - IPv6 address string
+ * @returns {Buffer} 16-byte buffer
+ */
+function parseIPv6 (address) {
+  const buffer = Buffer.alloc(16)
+  let normalizedAddress = address
+
+  // Expand an embedded IPv4 tail into the last two IPv6 groups.
+  if (address.includes('.')) {
+    const lastColonIndex = address.lastIndexOf(':')
+    const ipv4Part = address.slice(lastColonIndex + 1)
+
+    if (net.isIPv4(ipv4Part)) {
+      const octets = ipv4Part.split('.').map(Number)
+      const high = ((octets[0] << 8) | octets[1]).toString(16)
+      const low = ((octets[2] << 8) | octets[3]).toString(16)
+      normalizedAddress = `${address.slice(0, lastColonIndex)}:${high}:${low}`
+    }
+  }
+
+  // Handle compressed notation (::)
+  const doubleColonIndex = normalizedAddress.indexOf('::')
+  if (doubleColonIndex !== -1) {
+    const before = normalizedAddress.slice(0, doubleColonIndex)
+    const after = normalizedAddress.slice(doubleColonIndex + 2)
+    const beforeParts = before === '' ? [] : before.split(':')
+    const afterParts = after === '' ? [] : after.split(':')
+
+    let bufferIndex = 0
+    for (const part of beforeParts) {
+      buffer.writeUInt16BE(parseInt(part, 16), bufferIndex)
+      bufferIndex += 2
+    }
+    bufferIndex = 16 - afterParts.length * 2
+    for (const part of afterParts) {
+      buffer.writeUInt16BE(parseInt(part, 16), bufferIndex)
+      bufferIndex += 2
+    }
+  } else {
+    const parts = normalizedAddress.split(':')
+    for (let i = 0; i < parts.length; i++) {
+      buffer.writeUInt16BE(parseInt(parts[i], 16), i * 2)
+    }
+  }
+
+  return buffer
+}
+
+/**
+ * Build a SOCKS5 address buffer
+ * @param {number} type - Address type (1=IPv4, 3=Domain, 4=IPv6)
+ * @param {Buffer} addressBuffer - The address data
+ * @param {number} port - Port number
+ * @returns {Buffer} Complete address buffer including type, address, and port
+ */
+function buildAddressBuffer (type, addressBuffer, port) {
+  const portBuffer = Buffer.allocUnsafe(2)
+  portBuffer.writeUInt16BE(port, 0)
+
+  return Buffer.concat([
+    Buffer.from([type]),
+    addressBuffer,
+    portBuffer
+  ])
+}
+
+/**
+ * Parse address from SOCKS5 response
+ * @param {Buffer} buffer - Buffer containing the address
+ * @param {number} offset - Starting offset in buffer
+ * @returns {{address: string, port: number, bytesRead: number}}
+ */
+function parseResponseAddress (buffer, offset = 0) {
+  if (buffer.length < offset + 1) {
+    throw new InvalidArgumentError('Buffer too small to contain address type')
+  }
+
+  const addressType = buffer[offset]
+  let address
+  let currentOffset = offset + 1
+
+  switch (addressType) {
+    case 0x01: { // IPv4
+      if (buffer.length < currentOffset + 6) {
+        throw new InvalidArgumentError('Buffer too small for IPv4 address')
+      }
+      address = Array.from(buffer.subarray(currentOffset, currentOffset + 4)).join('.')
+      currentOffset += 4
+      break
+    }
+
+    case 0x03: { // Domain
+      if (buffer.length < currentOffset + 1) {
+        throw new InvalidArgumentError('Buffer too small for domain length')
+      }
+      const domainLength = buffer[currentOffset]
+      currentOffset += 1
+
+      if (buffer.length < currentOffset + domainLength + 2) {
+        throw new InvalidArgumentError('Buffer too small for domain address')
+      }
+      address = buffer.subarray(currentOffset, currentOffset + domainLength).toString('utf8')
+      currentOffset += domainLength
+      break
+    }
+
+    case 0x04: { // IPv6
+      if (buffer.length < currentOffset + 18) {
+        throw new InvalidArgumentError('Buffer too small for IPv6 address')
+      }
+      // Convert buffer to IPv6 string
+      const parts = []
+      for (let i = 0; i < 8; i++) {
+        const value = buffer.readUInt16BE(currentOffset + i * 2)
+        parts.push(value.toString(16))
+      }
+      address = parts.join(':')
+      currentOffset += 16
+      break
+    }
+
+    default:
+      throw new InvalidArgumentError(`Invalid address type: ${addressType}`)
+  }
+
+  // Parse port
+  if (buffer.length < currentOffset + 2) {
+    throw new InvalidArgumentError('Buffer too small for port')
+  }
+  const port = buffer.readUInt16BE(currentOffset)
+  currentOffset += 2
+
+  return {
+    address,
+    port,
+    bytesRead: currentOffset - offset
+  }
+}
+
+/**
+ * Create error for SOCKS5 reply code
+ * @param {number} replyCode - SOCKS5 reply code
+ * @returns {Error} Appropriate error object
+ */
+function createReplyError (replyCode) {
+  const messages = {
+    0x01: 'General SOCKS server failure',
+    0x02: 'Connection not allowed by ruleset',
+    0x03: 'Network unreachable',
+    0x04: 'Host unreachable',
+    0x05: 'Connection refused',
+    0x06: 'TTL expired',
+    0x07: 'Command not supported',
+    0x08: 'Address type not supported'
+  }
+
+  const message = messages[replyCode] || `Unknown SOCKS5 error code: ${replyCode}`
+  const error = new Error(message)
+  error.code = `SOCKS5_${replyCode}`
+  return error
+}
+
+module.exports = {
+  parseAddress,
+  parseIPv6,
+  buildAddressBuffer,
+  parseResponseAddress,
+  createReplyError
+}

node_modules/undici/lib/core/symbols.js

@@ -0,0 +1,79 @@
+'use strict'
+
+module.exports = {
+  kClose: Symbol('close'),
+  kDestroy: Symbol('destroy'),
+  kDispatch: Symbol('dispatch'),
+  kUrl: Symbol('url'),
+  kRequestOrigin: Symbol('request origin'),
+  kOriginless: Symbol('originless'),
+  kWriting: Symbol('writing'),
+  kResuming: Symbol('resuming'),
+  kQueue: Symbol('queue'),
+  kConnect: Symbol('connect'),
+  kConnecting: Symbol('connecting'),
+  kKeepAliveDefaultTimeout: Symbol('default keep alive timeout'),
+  kKeepAliveMaxTimeout: Symbol('max keep alive timeout'),
+  kKeepAliveTimeoutThreshold: Symbol('keep alive timeout threshold'),
+  kKeepAliveTimeoutValue: Symbol('keep alive timeout'),
+  kKeepAlive: Symbol('keep alive'),
+  kHeadersTimeout: Symbol('headers timeout'),
+  kBodyTimeout: Symbol('body timeout'),
+  kServerName: Symbol('server name'),
+  kLocalAddress: Symbol('local address'),
+  kHost: Symbol('host'),
+  kNoRef: Symbol('no ref'),
+  kBodyUsed: Symbol('used'),
+  kBody: Symbol('abstracted request body'),
+  kRunning: Symbol('running'),
+  kBlocking: Symbol('blocking'),
+  kPending: Symbol('pending'),
+  kSize: Symbol('size'),
+  kBusy: Symbol('busy'),
+  kQueued: Symbol('queued'),
+  kFree: Symbol('free'),
+  kConnected: Symbol('connected'),
+  kClosed: Symbol('closed'),
+  kNeedDrain: Symbol('need drain'),
+  kReset: Symbol('reset'),
+  kDestroyed: Symbol.for('nodejs.stream.destroyed'),
+  kResume: Symbol('resume'),
+  kOnError: Symbol('on error'),
+  kMaxHeadersSize: Symbol('max headers size'),
+  kRunningIdx: Symbol('running index'),
+  kPendingIdx: Symbol('pending index'),
+  kError: Symbol('error'),
+  kClients: Symbol('clients'),
+  kClient: Symbol('client'),
+  kParser: Symbol('parser'),
+  kOnDestroyed: Symbol('destroy callbacks'),
+  kPipelining: Symbol('pipelining'),
+  kSocket: Symbol('socket'),
+  kHostHeader: Symbol('host header'),
+  kConnector: Symbol('connector'),
+  kStrictContentLength: Symbol('strict content length'),
+  kMaxRedirections: Symbol('maxRedirections'),
+  kMaxRequests: Symbol('maxRequestsPerClient'),
+  kProxy: Symbol('proxy agent options'),
+  kCounter: Symbol('socket request counter'),
+  kMaxResponseSize: Symbol('max response size'),
+  kHTTP2Session: Symbol('http2Session'),
+  kHTTP2Options: Symbol('http2 options'),
+  kHTTP2SessionState: Symbol('http2Session state'),
+  kRetryHandlerDefaultRetry: Symbol('retry agent default retry'),
+  kConstruct: Symbol('constructable'),
+  kListeners: Symbol('listeners'),
+  kHTTPContext: Symbol('http context'),
+  kMaxConcurrentStreams: Symbol('max concurrent streams'),
+  kHostAuthority: Symbol('host authority'),
+  kHTTP2InitialWindowSize: Symbol('http2 initial window size'),
+  kHTTP2ConnectionWindowSize: Symbol('http2 connection window size'),
+  kEnableConnectProtocol: Symbol('http2session connect protocol'),
+  kRemoteSettings: Symbol('http2session remote settings'),
+  kHTTP2Stream: Symbol('http2session client stream'),
+  kPingInterval: Symbol('ping interval'),
+  kNoProxyAgent: Symbol('no proxy agent'),
+  kHttpProxyAgent: Symbol('http proxy agent'),
+  kHttpsProxyAgent: Symbol('https proxy agent'),
+  kSocks5ProxyAgent: Symbol('socks5 proxy agent')
+}

node_modules/undici/lib/core/tree.js

@@ -0,0 +1,160 @@
+'use strict'
+
+const {
+  wellknownHeaderNames,
+  headerNameLowerCasedRecord
+} = require('./constants')
+
+class TstNode {
+  /** @type {any} */
+  value = null
+  /** @type {null | TstNode} */
+  left = null
+  /** @type {null | TstNode} */
+  middle = null
+  /** @type {null | TstNode} */
+  right = null
+  /** @type {number} */
+  code
+  /**
+   * @param {string} key
+   * @param {any} value
+   * @param {number} index
+   */
+  constructor (key, value, index) {
+    if (index === undefined || index >= key.length) {
+      throw new TypeError('Unreachable')
+    }
+    const code = this.code = key.charCodeAt(index)
+    // check code is ascii string
+    if (code > 0x7F) {
+      throw new TypeError('key must be ascii string')
+    }
+    if (key.length !== ++index) {
+      this.middle = new TstNode(key, value, index)
+    } else {
+      this.value = value
+    }
+  }
+
+  /**
+   * @param {string} key
+   * @param {any} value
+   * @returns {void}
+   */
+  add (key, value) {
+    const length = key.length
+    if (length === 0) {
+      throw new TypeError('Unreachable')
+    }
+    let index = 0
+    /**
+     * @type {TstNode}
+     */
+    let node = this
+    while (true) {
+      const code = key.charCodeAt(index)
+      // check code is ascii string
+      if (code > 0x7F) {
+        throw new TypeError('key must be ascii string')
+      }
+      if (node.code === code) {
+        if (length === ++index) {
+          node.value = value
+          break
+        } else if (node.middle !== null) {
+          node = node.middle
+        } else {
+          node.middle = new TstNode(key, value, index)
+          break
+        }
+      } else if (node.code < code) {
+        if (node.left !== null) {
+          node = node.left
+        } else {
+          node.left = new TstNode(key, value, index)
+          break
+        }
+      } else if (node.right !== null) {
+        node = node.right
+      } else {
+        node.right = new TstNode(key, value, index)
+        break
+      }
+    }
+  }
+
+  /**
+   * @param {Uint8Array} key
+   * @returns {TstNode | null}
+   */
+  search (key) {
+    const keylength = key.length
+    let index = 0
+    /**
+     * @type {TstNode|null}
+     */
+    let node = this
+    while (node !== null && index < keylength) {
+      let code = key[index]
+      // A-Z
+      // First check if it is bigger than 0x5a.
+      // Lowercase letters have higher char codes than uppercase ones.
+      // Also we assume that headers will mostly contain lowercase characters.
+      if (code <= 0x5a && code >= 0x41) {
+        // Lowercase for uppercase.
+        code |= 32
+      }
+      while (node !== null) {
+        if (code === node.code) {
+          if (keylength === ++index) {
+            // Returns Node since it is the last key.
+            return node
+          }
+          node = node.middle
+          break
+        }
+        node = node.code < code ? node.left : node.right
+      }
+    }
+    return null
+  }
+}
+
+class TernarySearchTree {
+  /** @type {TstNode | null} */
+  node = null
+
+  /**
+   * @param {string} key
+   * @param {any} value
+   * @returns {void}
+   * */
+  insert (key, value) {
+    if (this.node === null) {
+      this.node = new TstNode(key, value, 0)
+    } else {
+      this.node.add(key, value)
+    }
+  }
+
+  /**
+   * @param {Uint8Array} key
+   * @returns {any}
+   */
+  lookup (key) {
+    return this.node?.search(key)?.value ?? null
+  }
+}
+
+const tree = new TernarySearchTree()
+
+for (let i = 0; i < wellknownHeaderNames.length; ++i) {
+  const key = headerNameLowerCasedRecord[wellknownHeaderNames[i]]
+  tree.insert(key, key)
+}
+
+module.exports = {
+  TernarySearchTree,
+  tree
+}