fastify - npm Package Compare versions

Comparing version 3.29.3 to 3.29.4

fastify.js

 'use strict'
 
-const VERSION = '3.29.3'
+const VERSION = '3.29.4'
 
@@ -5,0 +5,0 @@ const Avvio = require('avvio')

lib/contentTypeParser.js

@@ -9,2 +9,3 @@ 'use strict'
 lru = typeof lru === 'function' ? lru : lru.default
+const { parse: parseContentType } = require('content-type')
 
@@ -40,3 +41,3 @@ const secureJson = require('secure-json-parse')
   this.customParsers.set('text/plain', new Parser(true, false, bodyLimit, defaultPlainTextParser))
-  this.parserList = ['application/json', 'text/plain']
+  this.parserList = [new ParserListItem('application/json'), new ParserListItem('text/plain')]
   this.parserRegExpList = []
@@ -74,3 +75,3 @@ this.cache = lru(100)
     if (contentTypeIsString) {
-      this.parserList.unshift(contentType)
+      this.parserList.unshift(new ParserListItem(contentType))
     } else {
@@ -103,7 +104,21 @@ this.parserRegExpList.unshift(contentType)
 
+  const parser = this.cache.get(contentType)
+  // TODO not covered by tests, this is a security backport
+  /* istanbul ignore next */
+  if (parser !== undefined) return parser
+
+  const parsed = safeParseContentType(contentType)
+
+  // dummyContentType always the same object
+  // we can use === for the comparsion and return early
+  if (parsed === dummyContentType) {
+    return this.customParsers.get('')
+  }
+
   // eslint-disable-next-line no-var
   for (var i = 0; i !== this.parserList.length; ++i) {
-    const parserName = this.parserList[i]
-    if (contentType.indexOf(parserName) !== -1) {
-      const parser = this.customParsers.get(parserName)
+    const parserListItem = this.parserList[i]
+    if (compareContentType(parsed, parserListItem)) {
+      const parser = this.customParsers.get(parserListItem.name)
+      // we set request content-type in cache to reduce parsing of MIME type
       this.cache.set(contentType, parser)
@@ -117,4 +132,5 @@ return parser
     const parserRegExp = this.parserRegExpList[j]
-    if (parserRegExp.test(contentType)) {
+    if (compareRegExpContentType(contentType, parsed.type, parserRegExp)) {
       const parser = this.customParsers.get(parserRegExp.toString())
+      // we set request content-type in cache to reduce parsing of MIME type
       this.cache.set(contentType, parser)
@@ -356,2 +372,59 @@ return parser
 
+// dummy here to prevent repeated object creation
+const dummyContentType = { type: '', parameters: Object.create(null) }
+
+function safeParseContentType (contentType) {
+  try {
+    return parseContentType(contentType)
+  } catch (err) {
+    return dummyContentType
+  }
+}
+
+function compareContentType (contentType, parserListItem) {
+  if (parserListItem.isEssence) {
+    // we do essence check
+    return contentType.type.indexOf(parserListItem) !== -1
+  } else {
+    // when the content-type includes parameters
+    // we do a full-text search
+    // reject essence content-type before checking parameters
+    if (contentType.type.indexOf(parserListItem.type) === -1) return false
+    for (const key of parserListItem.parameterKeys) {
+      // reject when missing parameters
+      if (!(key in contentType.parameters)) return false
+      // reject when parameters do not match
+      if (contentType.parameters[key] !== parserListItem.parameters[key]) return false
+    }
+    return true
+  }
+}
+
+function compareRegExpContentType (contentType, essenceMIMEType, regexp) {
+  if (regexp.source.indexOf(';') === -1) {
+    // we do essence check
+    return regexp.test(essenceMIMEType)
+  } else {
+    // when the content-type includes parameters
+    // we do a full-text match
+    return regexp.test(contentType)
+  }
+}
+
+function ParserListItem (contentType) {
+  this.name = contentType
+  // we pre-calculate all the needed information
+  // before content-type comparsion
+  const parsed = safeParseContentType(contentType)
+  this.type = parsed.type
+  this.parameters = parsed.parameters
+  this.parameterKeys = Object.keys(parsed.parameters)
+  this.isEssence = contentType.indexOf(';') === -1
+}
+
+// used in ContentTypeParser.remove
+ParserListItem.prototype.toString = function () {
+  return this.name
+}
+
 module.exports = ContentTypeParser
@@ -358,0 +431,0 @@ module.exports.helpers = {

package.json

 {
   "name": "fastify",
-  "version": "3.29.3",
+  "version": "3.29.4",
   "description": "Fast and low overhead web framework, for Node.js",
@@ -190,2 +190,3 @@ "main": "fastify.js",
     "process-warning": "^1.0.0",
+    "content-type": "^1.0.4",
     "proxy-addr": "^2.0.7",
@@ -192,0 +193,0 @@ "rfdc": "^1.1.4",

test/content-parser.test.js

@@ -331,1 +331,215 @@ 'use strict'
 })
+
+test('Safeguard against content-type spoofing - string', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser('text/plain', function (request, body, done) {
+    t.pass('should be called')
+    done(null, body)
+  })
+  fastify.addContentTypeParser('application/json', function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'text/plain; content-type="application/json"'
+    },
+    body: ''
+  })
+})
+
+test('Safeguard against content-type spoofing - regexp', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser(/text\/plain/, function (request, body, done) {
+    t.pass('should be called')
+    done(null, body)
+  })
+  fastify.addContentTypeParser(/application\/json/, function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'text/plain; content-type="application/json"'
+    },
+    body: ''
+  })
+})
+
+test('content-type match parameters - string 1', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser('text/plain; charset=utf8', function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+  fastify.addContentTypeParser('application/json; charset=utf8', function (request, body, done) {
+    t.pass('should be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; charset=utf8'
+    },
+    body: ''
+  })
+})
+
+test('content-type match parameters - string 2', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser('application/json; charset=utf8; foo=bar', function (request, body, done) {
+    t.pass('should be called')
+    done(null, body)
+  })
+  fastify.addContentTypeParser('text/plain; charset=utf8; foo=bar', function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; foo=bar; charset=utf8'
+    },
+    body: ''
+  })
+})
+
+test('content-type match parameters - regexp', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser(/application\/json; charset=utf8/, function (request, body, done) {
+    t.pass('should be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; charset=utf8'
+    },
+    body: ''
+  })
+})
+
+test('content-type fail when parameters not match - string 1', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser('application/json; charset=utf8; foo=bar', function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  const response = await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; charset=utf8'
+    },
+    body: ''
+  })
+
+  t.same(response.statusCode, 415)
+})
+
+test('content-type fail when parameters not match - string 2', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser('application/json; charset=utf8; foo=bar', function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  const response = await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; charset=utf8; foo=baz'
+    },
+    body: ''
+  })
+
+  t.same(response.statusCode, 415)
+})
+
+test('content-type fail when parameters not match - regexp', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+  fastify.removeAllContentTypeParsers()
+  fastify.addContentTypeParser(/application\/json; charset=utf8; foo=bar/, function (request, body, done) {
+    t.fail('shouldn\'t be called')
+    done(null, body)
+  })
+
+  fastify.post('/', async () => {
+    return 'ok'
+  })
+
+  const response = await fastify.inject({
+    method: 'POST',
+    path: '/',
+    headers: {
+      'content-type': 'application/json; charset=utf8'
+    },
+    body: ''
+  })
+
+  t.same(response.statusCode, 415)
+})

test/custom-parser.test.js

@@ -1123,3 +1123,3 @@ 'use strict'
       headers: {
-        'Content-Type': 'application/json charset=utf-8'
+        'Content-Type': 'application/json; charset=utf-8'
       }
@@ -1307,3 +1307,3 @@ }, (err, response, body) => {
         headers: {
-          'Content-Type': 'weird-content-type+json'
+          'Content-Type': 'weird/content-type+json'
         }
@@ -1338,3 +1338,3 @@ }, (err, response, body) => {
 
-  fastify.addContentTypeParser(/.*\+myExtension$/, function (req, payload, done) {
+  fastify.addContentTypeParser(/.*\+myExtension$/i, function (req, payload, done) {
     let data = ''
@@ -1341,0 +1341,0 @@ payload.on('data', chunk => { data += chunk })

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

1661386

increased by0.46%

Lines of code

40012

increased by0.61%

Worsened metrics

Dependency count

16

increased by6.67%

Dependency changes

• + Addedcontent-type@^1.0.4

• + Addedcontent-type@1.0.5(transitive)