add tests from cookie package

index.js

@@ -136,12 +136,13 @@ const { kConstruct } = require('./lib/core/symbols')
 // in an older version of Node, it doesn't have any use without fetch.
 module.exports.caches = new CacheStorage(kConstruct)
 
-const { deleteCookie, getCookies, getSetCookies, setCookie } = require('./lib/web/cookies')
+const { deleteCookie, getCookies, getSetCookies, setCookie, parseCookie } = require('./lib/web/cookies')
 
 module.exports.deleteCookie = deleteCookie
 module.exports.getCookies = getCookies
 module.exports.getSetCookies = getSetCookies
 module.exports.setCookie = setCookie
+module.exports.parseCookie = parseCookie
 
 const { parseMIMEType, serializeAMimeType } = require('./lib/web/fetch/data-url')
 

lib/web/cookies/index.js

@@ -91,6 +91,16 @@ function getSetCookies (headers) {
   return cookies.map((pair) => parseSetCookie(pair))
 }
 
+/**
+ * Parses a cookie string
+ * @param {string} cookie
+ */
+function parseCookie (cookie) {
+  cookie = webidl.converters.DOMString(cookie)
+
+  return parseSetCookie(cookie)
+}
+
 /**
  * @param {Headers} headers
  * @param {Cookie} cookie
@@ -184,5 +194,6 @@ module.exports = {
   getCookies,
   deleteCookie,
   getSetCookies,
-  setCookie
+  setCookie,
+  parseCookie
 }

lib/web/cookies/parse.js

@@ -4,6 +4,7 @@ const { maxNameValuePairSize, maxAttributeValueSize } = require('./constants')
 const { isCTLExcludingHtab } = require('./util')
 const { collectASequenceOfCodePointsFast } = require('../fetch/data-url')
 const assert = require('node:assert')
+const { unescape } = require('node:querystring')
 
 /**
  * @description Parses the field-value attributes of a set-cookie header string.
@@ -76,8 +77,12 @@ function parseSetCookie (header) {
 
   // 6. The cookie-name is the name string, and the cookie-value is the
   //    value string.
+  // https://datatracker.ietf.org/doc/html/rfc6265
+  // To maximize compatibility with user agents, servers that wish to
+  // store arbitrary data in a cookie-value SHOULD encode that data, for
+  // example, using Base64 [RFC4648].
   return {
-    name, value, ...parseUnparsedAttributes(unparsedAttributes)
+    name, value: unescape(value), ...parseUnparsedAttributes(unparsedAttributes)
   }
 }
 

test/cookie/npm-cookie.js

@@ -0,0 +1,113 @@
+'use strict'
+
+// (The MIT License)
+//
+// Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+// Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// 'Software'), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+const { describe, it } = require('node:test')
+const assert = require('node:assert')
+const { parseCookie } = require('../..')
+
+describe('parseCookie(str)', function () {
+  it('should parse cookie string to object', function () {
+    assert.deepStrictEqual(parseCookie('foo=bar'), { name: 'foo', value: 'bar' })
+    assert.deepStrictEqual(parseCookie('foo=123'), { name: 'foo', value: '123' })
+  })
+
+  it('should ignore OWS', function () {
+    assert.deepStrictEqual(parseCookie('FOO    = bar;   baz  =   raz'), {
+      name: 'FOO',
+      value: 'bar',
+      unparsed: ['baz=raz']
+    })
+  })
+
+  it('should parse cookie with empty value', function () {
+    assert.deepStrictEqual(parseCookie('foo=; bar='), { name: 'foo', value: '', unparsed: ['bar='] })
+  })
+
+  it('should parse cookie with minimum length', function () {
+    assert.deepStrictEqual(parseCookie('f='), { name: 'f', value: '' })
+    assert.deepStrictEqual(parseCookie('f=;b='), { name: 'f', value: '', unparsed: ['b='] })
+  })
+
+  it('should URL-decode values', function () {
+    assert.deepStrictEqual(parseCookie('foo="bar=123456789&name=Magic+Mouse"'), {
+      name: 'foo',
+      value: '"bar=123456789&name=Magic+Mouse"'
+    })
+
+    assert.deepStrictEqual(parseCookie('email=%20%22%2c%3b%2f'), { name: 'email', value: ' ",;/' })
+  })
+
+  it('should trim whitespace around key and value', function () {
+    assert.deepStrictEqual(parseCookie('  foo  =  "bar"  '), { name: 'foo', value: '"bar"' })
+    assert.deepStrictEqual(parseCookie('  foo  =  bar  ;  fizz  =  buzz  '), {
+      name: 'foo',
+      value: 'bar',
+      unparsed: ['fizz=buzz']
+    })
+    assert.deepStrictEqual(parseCookie(' foo = " a b c " '), { name: 'foo', value: '" a b c "' })
+    assert.deepStrictEqual(parseCookie(' = bar '), { name: '', value: 'bar' })
+    assert.deepStrictEqual(parseCookie(' foo = '), { name: 'foo', value: '' })
+    assert.deepStrictEqual(parseCookie('   =   '), { name: '', value: '' })
+    assert.deepStrictEqual(parseCookie('\tfoo\t=\tbar\t'), { name: 'foo', value: 'bar' })
+  })
+
+  it('should return original value on escape error', function () {
+    assert.deepStrictEqual(parseCookie('foo=%1;bar=bar'), { name: 'foo', value: '%1', unparsed: ['bar=bar'] })
+  })
+
+  it('should ignore cookies without value', function () {
+    assert.deepStrictEqual(parseCookie('foo=bar;fizz  ;  buzz'), { name: 'foo', value: 'bar', unparsed: ['fizz=', 'buzz='] })
+    assert.deepStrictEqual(parseCookie('  fizz; foo=  bar'), { name: '', value: 'fizz', unparsed: ['foo=bar'] })
+  })
+
+  it('should ignore duplicate cookies', function () {
+    assert.deepStrictEqual(parseCookie('foo=%1;bar=bar;foo=boo'), {
+      name: 'foo',
+      value: '%1',
+      unparsed: ['bar=bar', 'foo=boo']
+    })
+    assert.deepStrictEqual(parseCookie('foo=false;bar=bar;foo=true'), {
+      name: 'foo',
+      value: 'false',
+      unparsed: ['bar=bar', 'foo=true']
+    })
+    assert.deepStrictEqual(parseCookie('foo=;bar=bar;foo=boo'), {
+      name: 'foo',
+      value: '',
+      unparsed: ['bar=bar', 'foo=boo']
+    })
+  })
+
+  it('should parse native properties', function () {
+    assert.deepStrictEqual(parseCookie('toString=foo;valueOf=bar'), {
+      name: 'toString',
+      unparsed: [
+        'valueOf=bar'
+      ],
+      value: 'foo'
+    })
+  })
+})

types/cookies.d.ts

@@ -26,3 +26,5 @@ export function getCookies (headers: Headers): Record<string, string>
 export function getSetCookies (headers: Headers): Cookie[]
 
 export function setCookie (headers: Headers, cookie: Cookie): void
+
+export function parseCookie (cookie: string): Cookie | null