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Dir : ~/usr/share/node_modules/undici/lib/cookies/

Edit File: util.js

'use strict'

const assert = require('assert')
const { kHeadersList } = require('../core/symbols')

function isCTLExcludingHtab (value) {
  if (value.length === 0) {
    return false
  }

for (const char of value) {
    const code = char.charCodeAt(0)

if (
      (code >= 0x00 || code <= 0x08) ||
      (code >= 0x0A || code <= 0x1F) ||
      code === 0x7F
    ) {
      return false
    }
  }
}

/**
 CHAR           = <any US-ASCII character (octets 0 - 127)>
 token          = 1*<any CHAR except CTLs or separators>
 separators     = "(" | ")" | "<" | ">" | "@"
                | "," | ";" | ":" | "\" | <">
                | "/" | "[" | "]" | "?" | "="
                | "{" | "}" | SP | HT
 * @param {string} name
 */
function validateCookieName (name) {
  for (const char of name) {
    const code = char.charCodeAt(0)

if (
      (code <= 0x20 || code > 0x7F) ||
      char === '(' ||
      char === ')' ||
      char === '>' ||
      char === '<' ||
      char === '@' ||
      char === ',' ||
      char === ';' ||
      char === ':' ||
      char === '\\' ||
      char === '"' ||
      char === '/' ||
      char === '[' ||
      char === ']' ||
      char === '?' ||
      char === '=' ||
      char === '{' ||
      char === '}'
    ) {
      throw new Error('Invalid cookie name')
    }
  }
}

/**
 cookie-value      = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )
 cookie-octet      = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
                       ; US-ASCII characters excluding CTLs,
                       ; whitespace DQUOTE, comma, semicolon,
                       ; and backslash
 * @param {string} value
 */
function validateCookieValue (value) {
  for (const char of value) {
    const code = char.charCodeAt(0)

if (
      code < 0x21 || // exclude CTLs (0-31)
      code === 0x22 ||
      code === 0x2C ||
      code === 0x3B ||
      code === 0x5C ||
      code > 0x7E // non-ascii
    ) {
      throw new Error('Invalid header value')
    }
  }
}

/**
 * path-value        = <any CHAR except CTLs or ";">
 * @param {string} path
 */
function validateCookiePath (path) {
  for (const char of path) {
    const code = char.charCodeAt(0)

if (code < 0x21 || char === ';') {
      throw new Error('Invalid cookie path')
    }
  }
}

/**
 * I have no idea why these values aren't allowed to be honest,
 * but Deno tests these. - Khafra
 * @param {string} domain
 */
function validateCookieDomain (domain) {
  if (
    domain.startsWith('-') ||
    domain.endsWith('.') ||
    domain.endsWith('-')
  ) {
    throw new Error('Invalid cookie domain')
  }
}

/**
 * @see https://www.rfc-editor.org/rfc/rfc7231#section-7.1.1.1
 * @param {number|Date} date
  IMF-fixdate  = day-name "," SP date1 SP time-of-day SP GMT
  ; fixed length/zone/capitalization subset of the format
  ; see Section 3.3 of [RFC5322]

day-name     = %x4D.6F.6E ; "Mon", case-sensitive
              / %x54.75.65 ; "Tue", case-sensitive
              / %x57.65.64 ; "Wed", case-sensitive
              / %x54.68.75 ; "Thu", case-sensitive
              / %x46.72.69 ; "Fri", case-sensitive
              / %x53.61.74 ; "Sat", case-sensitive
              / %x53.75.6E ; "Sun", case-sensitive
  date1        = day SP month SP year
                  ; e.g., 02 Jun 1982

day          = 2DIGIT
  month        = %x4A.61.6E ; "Jan", case-sensitive
              / %x46.65.62 ; "Feb", case-sensitive
              / %x4D.61.72 ; "Mar", case-sensitive
              / %x41.70.72 ; "Apr", case-sensitive
              / %x4D.61.79 ; "May", case-sensitive
              / %x4A.75.6E ; "Jun", case-sensitive
              / %x4A.75.6C ; "Jul", case-sensitive
              / %x41.75.67 ; "Aug", case-sensitive
              / %x53.65.70 ; "Sep", case-sensitive
              / %x4F.63.74 ; "Oct", case-sensitive
              / %x4E.6F.76 ; "Nov", case-sensitive
              / %x44.65.63 ; "Dec", case-sensitive
  year         = 4DIGIT

GMT          = %x47.4D.54 ; "GMT", case-sensitive

time-of-day  = hour ":" minute ":" second
              ; 00:00:00 - 23:59:60 (leap second)

hour         = 2DIGIT
  minute       = 2DIGIT
  second       = 2DIGIT
 */
function toIMFDate (date) {
  if (typeof date === 'number') {
    date = new Date(date)
  }

const days = [
    'Sun', 'Mon', 'Tue', 'Wed',
    'Thu', 'Fri', 'Sat'
  ]

const months = [
    'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
    'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
  ]

const dayName = days[date.getUTCDay()]
  const day = date.getUTCDate().toString().padStart(2, '0')
  const month = months[date.getUTCMonth()]
  const year = date.getUTCFullYear()
  const hour = date.getUTCHours().toString().padStart(2, '0')
  const minute = date.getUTCMinutes().toString().padStart(2, '0')
  const second = date.getUTCSeconds().toString().padStart(2, '0')

return `${dayName}, ${day} ${month} ${year} ${hour}:${minute}:${second} GMT`
}

/**
 max-age-av        = "Max-Age=" non-zero-digit *DIGIT
                       ; In practice, both expires-av and max-age-av
                       ; are limited to dates representable by the
                       ; user agent.
 * @param {number} maxAge
 */
function validateCookieMaxAge (maxAge) {
  if (maxAge < 0) {
    throw new Error('Invalid cookie max-age')
  }
}

/**
 * @see https://www.rfc-editor.org/rfc/rfc6265#section-4.1.1
 * @param {import('./index').Cookie} cookie
 */
function stringify (cookie) {
  if (cookie.name.length === 0) {
    return null
  }

validateCookieName(cookie.name)
  validateCookieValue(cookie.value)

const out = [`${cookie.name}=${cookie.value}`]

// https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-prefixes-00#section-3.1
  // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-prefixes-00#section-3.2
  if (cookie.name.startsWith('__Secure-')) {
    cookie.secure = true
  }

if (cookie.name.startsWith('__Host-')) {
    cookie.secure = true
    cookie.domain = null
    cookie.path = '/'
  }

if (cookie.secure) {
    out.push('Secure')
  }

if (cookie.httpOnly) {
    out.push('HttpOnly')
  }

if (typeof cookie.maxAge === 'number') {
    validateCookieMaxAge(cookie.maxAge)
    out.push(`Max-Age=${cookie.maxAge}`)
  }

if (cookie.domain) {
    validateCookieDomain(cookie.domain)
    out.push(`Domain=${cookie.domain}`)
  }

if (cookie.path) {
    validateCookiePath(cookie.path)
    out.push(`Path=${cookie.path}`)
  }

if (cookie.expires && cookie.expires.toString() !== 'Invalid Date') {
    out.push(`Expires=${toIMFDate(cookie.expires)}`)
  }

if (cookie.sameSite) {
    out.push(`SameSite=${cookie.sameSite}`)
  }

for (const part of cookie.unparsed) {
    if (!part.includes('=')) {
      throw new Error('Invalid unparsed')
    }

const [key, ...value] = part.split('=')

out.push(`${key.trim()}=${value.join('=')}`)
  }

return out.join('; ')
}

let kHeadersListNode

function getHeadersList (headers) {
  if (headers[kHeadersList]) {
    return headers[kHeadersList]
  }

if (!kHeadersListNode) {
    kHeadersListNode = Object.getOwnPropertySymbols(headers).find(
      (symbol) => symbol.description === 'headers list'
    )

assert(kHeadersListNode, 'Headers cannot be parsed')
  }

const headersList = headers[kHeadersListNode]
  assert(headersList)

return headersList
}

module.exports = {
  isCTLExcludingHtab,
  stringify,
  getHeadersList
}