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authorTekky <98614666+xtekky@users.noreply.github.com>2023-10-28 09:22:33 +0200
committerGitHub <noreply@github.com>2023-10-28 09:22:33 +0200
commit1a3b59838e21b98b5cfcafddf1737afb25129cfe (patch)
treeb9c645cbe897af198ea0551509f901a249af35f2 /g4f/Provider/npm/node_modules/undici/lib/cookies/parse.js
parentMerge pull request #1176 from hlohaus/history (diff)
parentAdd arkose_token to OpenaiChat (diff)
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+'use strict'
+
+const { maxNameValuePairSize, maxAttributeValueSize } = require('./constants')
+const { isCTLExcludingHtab } = require('./util')
+const { collectASequenceOfCodePointsFast } = require('../fetch/dataURL')
+const assert = require('assert')
+
+/**
+ * @description Parses the field-value attributes of a set-cookie header string.
+ * @see https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4
+ * @param {string} header
+ * @returns if the header is invalid, null will be returned
+ */
+function parseSetCookie (header) {
+ // 1. If the set-cookie-string contains a %x00-08 / %x0A-1F / %x7F
+ // character (CTL characters excluding HTAB): Abort these steps and
+ // ignore the set-cookie-string entirely.
+ if (isCTLExcludingHtab(header)) {
+ return null
+ }
+
+ let nameValuePair = ''
+ let unparsedAttributes = ''
+ let name = ''
+ let value = ''
+
+ // 2. If the set-cookie-string contains a %x3B (";") character:
+ if (header.includes(';')) {
+ // 1. The name-value-pair string consists of the characters up to,
+ // but not including, the first %x3B (";"), and the unparsed-
+ // attributes consist of the remainder of the set-cookie-string
+ // (including the %x3B (";") in question).
+ const position = { position: 0 }
+
+ nameValuePair = collectASequenceOfCodePointsFast(';', header, position)
+ unparsedAttributes = header.slice(position.position)
+ } else {
+ // Otherwise:
+
+ // 1. The name-value-pair string consists of all the characters
+ // contained in the set-cookie-string, and the unparsed-
+ // attributes is the empty string.
+ nameValuePair = header
+ }
+
+ // 3. If the name-value-pair string lacks a %x3D ("=") character, then
+ // the name string is empty, and the value string is the value of
+ // name-value-pair.
+ if (!nameValuePair.includes('=')) {
+ value = nameValuePair
+ } else {
+ // Otherwise, the name string consists of the characters up to, but
+ // not including, the first %x3D ("=") character, and the (possibly
+ // empty) value string consists of the characters after the first
+ // %x3D ("=") character.
+ const position = { position: 0 }
+ name = collectASequenceOfCodePointsFast(
+ '=',
+ nameValuePair,
+ position
+ )
+ value = nameValuePair.slice(position.position + 1)
+ }
+
+ // 4. Remove any leading or trailing WSP characters from the name
+ // string and the value string.
+ name = name.trim()
+ value = value.trim()
+
+ // 5. If the sum of the lengths of the name string and the value string
+ // is more than 4096 octets, abort these steps and ignore the set-
+ // cookie-string entirely.
+ if (name.length + value.length > maxNameValuePairSize) {
+ return null
+ }
+
+ // 6. The cookie-name is the name string, and the cookie-value is the
+ // value string.
+ return {
+ name, value, ...parseUnparsedAttributes(unparsedAttributes)
+ }
+}
+
+/**
+ * Parses the remaining attributes of a set-cookie header
+ * @see https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4
+ * @param {string} unparsedAttributes
+ * @param {[Object.<string, unknown>]={}} cookieAttributeList
+ */
+function parseUnparsedAttributes (unparsedAttributes, cookieAttributeList = {}) {
+ // 1. If the unparsed-attributes string is empty, skip the rest of
+ // these steps.
+ if (unparsedAttributes.length === 0) {
+ return cookieAttributeList
+ }
+
+ // 2. Discard the first character of the unparsed-attributes (which
+ // will be a %x3B (";") character).
+ assert(unparsedAttributes[0] === ';')
+ unparsedAttributes = unparsedAttributes.slice(1)
+
+ let cookieAv = ''
+
+ // 3. If the remaining unparsed-attributes contains a %x3B (";")
+ // character:
+ if (unparsedAttributes.includes(';')) {
+ // 1. Consume the characters of the unparsed-attributes up to, but
+ // not including, the first %x3B (";") character.
+ cookieAv = collectASequenceOfCodePointsFast(
+ ';',
+ unparsedAttributes,
+ { position: 0 }
+ )
+ unparsedAttributes = unparsedAttributes.slice(cookieAv.length)
+ } else {
+ // Otherwise:
+
+ // 1. Consume the remainder of the unparsed-attributes.
+ cookieAv = unparsedAttributes
+ unparsedAttributes = ''
+ }
+
+ // Let the cookie-av string be the characters consumed in this step.
+
+ let attributeName = ''
+ let attributeValue = ''
+
+ // 4. If the cookie-av string contains a %x3D ("=") character:
+ if (cookieAv.includes('=')) {
+ // 1. The (possibly empty) attribute-name string consists of the
+ // characters up to, but not including, the first %x3D ("=")
+ // character, and the (possibly empty) attribute-value string
+ // consists of the characters after the first %x3D ("=")
+ // character.
+ const position = { position: 0 }
+
+ attributeName = collectASequenceOfCodePointsFast(
+ '=',
+ cookieAv,
+ position
+ )
+ attributeValue = cookieAv.slice(position.position + 1)
+ } else {
+ // Otherwise:
+
+ // 1. The attribute-name string consists of the entire cookie-av
+ // string, and the attribute-value string is empty.
+ attributeName = cookieAv
+ }
+
+ // 5. Remove any leading or trailing WSP characters from the attribute-
+ // name string and the attribute-value string.
+ attributeName = attributeName.trim()
+ attributeValue = attributeValue.trim()
+
+ // 6. If the attribute-value is longer than 1024 octets, ignore the
+ // cookie-av string and return to Step 1 of this algorithm.
+ if (attributeValue.length > maxAttributeValueSize) {
+ return parseUnparsedAttributes(unparsedAttributes, cookieAttributeList)
+ }
+
+ // 7. Process the attribute-name and attribute-value according to the
+ // requirements in the following subsections. (Notice that
+ // attributes with unrecognized attribute-names are ignored.)
+ const attributeNameLowercase = attributeName.toLowerCase()
+
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.1
+ // If the attribute-name case-insensitively matches the string
+ // "Expires", the user agent MUST process the cookie-av as follows.
+ if (attributeNameLowercase === 'expires') {
+ // 1. Let the expiry-time be the result of parsing the attribute-value
+ // as cookie-date (see Section 5.1.1).
+ const expiryTime = new Date(attributeValue)
+
+ // 2. If the attribute-value failed to parse as a cookie date, ignore
+ // the cookie-av.
+
+ cookieAttributeList.expires = expiryTime
+ } else if (attributeNameLowercase === 'max-age') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.2
+ // If the attribute-name case-insensitively matches the string "Max-
+ // Age", the user agent MUST process the cookie-av as follows.
+
+ // 1. If the first character of the attribute-value is not a DIGIT or a
+ // "-" character, ignore the cookie-av.
+ const charCode = attributeValue.charCodeAt(0)
+
+ if ((charCode < 48 || charCode > 57) && attributeValue[0] !== '-') {
+ return parseUnparsedAttributes(unparsedAttributes, cookieAttributeList)
+ }
+
+ // 2. If the remainder of attribute-value contains a non-DIGIT
+ // character, ignore the cookie-av.
+ if (!/^\d+$/.test(attributeValue)) {
+ return parseUnparsedAttributes(unparsedAttributes, cookieAttributeList)
+ }
+
+ // 3. Let delta-seconds be the attribute-value converted to an integer.
+ const deltaSeconds = Number(attributeValue)
+
+ // 4. Let cookie-age-limit be the maximum age of the cookie (which
+ // SHOULD be 400 days or less, see Section 4.1.2.2).
+
+ // 5. Set delta-seconds to the smaller of its present value and cookie-
+ // age-limit.
+ // deltaSeconds = Math.min(deltaSeconds * 1000, maxExpiresMs)
+
+ // 6. If delta-seconds is less than or equal to zero (0), let expiry-
+ // time be the earliest representable date and time. Otherwise, let
+ // the expiry-time be the current date and time plus delta-seconds
+ // seconds.
+ // const expiryTime = deltaSeconds <= 0 ? Date.now() : Date.now() + deltaSeconds
+
+ // 7. Append an attribute to the cookie-attribute-list with an
+ // attribute-name of Max-Age and an attribute-value of expiry-time.
+ cookieAttributeList.maxAge = deltaSeconds
+ } else if (attributeNameLowercase === 'domain') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.3
+ // If the attribute-name case-insensitively matches the string "Domain",
+ // the user agent MUST process the cookie-av as follows.
+
+ // 1. Let cookie-domain be the attribute-value.
+ let cookieDomain = attributeValue
+
+ // 2. If cookie-domain starts with %x2E ("."), let cookie-domain be
+ // cookie-domain without its leading %x2E (".").
+ if (cookieDomain[0] === '.') {
+ cookieDomain = cookieDomain.slice(1)
+ }
+
+ // 3. Convert the cookie-domain to lower case.
+ cookieDomain = cookieDomain.toLowerCase()
+
+ // 4. Append an attribute to the cookie-attribute-list with an
+ // attribute-name of Domain and an attribute-value of cookie-domain.
+ cookieAttributeList.domain = cookieDomain
+ } else if (attributeNameLowercase === 'path') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.4
+ // If the attribute-name case-insensitively matches the string "Path",
+ // the user agent MUST process the cookie-av as follows.
+
+ // 1. If the attribute-value is empty or if the first character of the
+ // attribute-value is not %x2F ("/"):
+ let cookiePath = ''
+ if (attributeValue.length === 0 || attributeValue[0] !== '/') {
+ // 1. Let cookie-path be the default-path.
+ cookiePath = '/'
+ } else {
+ // Otherwise:
+
+ // 1. Let cookie-path be the attribute-value.
+ cookiePath = attributeValue
+ }
+
+ // 2. Append an attribute to the cookie-attribute-list with an
+ // attribute-name of Path and an attribute-value of cookie-path.
+ cookieAttributeList.path = cookiePath
+ } else if (attributeNameLowercase === 'secure') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.5
+ // If the attribute-name case-insensitively matches the string "Secure",
+ // the user agent MUST append an attribute to the cookie-attribute-list
+ // with an attribute-name of Secure and an empty attribute-value.
+
+ cookieAttributeList.secure = true
+ } else if (attributeNameLowercase === 'httponly') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.6
+ // If the attribute-name case-insensitively matches the string
+ // "HttpOnly", the user agent MUST append an attribute to the cookie-
+ // attribute-list with an attribute-name of HttpOnly and an empty
+ // attribute-value.
+
+ cookieAttributeList.httpOnly = true
+ } else if (attributeNameLowercase === 'samesite') {
+ // https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis#section-5.4.7
+ // If the attribute-name case-insensitively matches the string
+ // "SameSite", the user agent MUST process the cookie-av as follows:
+
+ // 1. Let enforcement be "Default".
+ let enforcement = 'Default'
+
+ const attributeValueLowercase = attributeValue.toLowerCase()
+ // 2. If cookie-av's attribute-value is a case-insensitive match for
+ // "None", set enforcement to "None".
+ if (attributeValueLowercase.includes('none')) {
+ enforcement = 'None'
+ }
+
+ // 3. If cookie-av's attribute-value is a case-insensitive match for
+ // "Strict", set enforcement to "Strict".
+ if (attributeValueLowercase.includes('strict')) {
+ enforcement = 'Strict'
+ }
+
+ // 4. If cookie-av's attribute-value is a case-insensitive match for
+ // "Lax", set enforcement to "Lax".
+ if (attributeValueLowercase.includes('lax')) {
+ enforcement = 'Lax'
+ }
+
+ // 5. Append an attribute to the cookie-attribute-list with an
+ // attribute-name of "SameSite" and an attribute-value of
+ // enforcement.
+ cookieAttributeList.sameSite = enforcement
+ } else {
+ cookieAttributeList.unparsed ??= []
+
+ cookieAttributeList.unparsed.push(`${attributeName}=${attributeValue}`)
+ }
+
+ // 8. Return to Step 1 of this algorithm.
+ return parseUnparsedAttributes(unparsedAttributes, cookieAttributeList)
+}
+
+module.exports = {
+ parseSetCookie,
+ parseUnparsedAttributes
+}