├── .eslintrc ├── .github ├── scripts │ └── before-beta-release.js └── workflows │ ├── check.yml │ └── release.yml ├── .gitignore ├── CHANGELOG.md ├── LICENSE ├── README.md ├── docs ├── README.md └── build-docs.js ├── jest.config.ts ├── package.json ├── src ├── constants.ts ├── data_files │ └── fingerprint-network-definition.json ├── fingerprint-generator.ts └── index.ts ├── test ├── generation.test.ts └── tsconfig.json ├── tsconfig.eslint.json └── tsconfig.json /.eslintrc: -------------------------------------------------------------------------------- 1 | { 2 | "extends": [ 3 | "@apify/ts" 4 | ], 5 | "parserOptions": { 6 | "project": "tsconfig.eslint.json" 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /.github/scripts/before-beta-release.js: -------------------------------------------------------------------------------- 1 | const path = require('path'); 2 | const fs = require('fs'); 3 | const { execSync } = require('child_process'); 4 | 5 | const PKG_JSON_PATH = path.join(__dirname, '..', '..', 'package.json'); 6 | 7 | const pkgJson = require(PKG_JSON_PATH); 8 | 9 | const PACKAGE_NAME = pkgJson.name; 10 | const VERSION = pkgJson.version; 11 | 12 | const nextVersion = getNextVersion(VERSION); 13 | console.log(`before-deploy: Setting version to ${nextVersion}`); 14 | pkgJson.version = nextVersion; 15 | 16 | fs.writeFileSync(PKG_JSON_PATH, JSON.stringify(pkgJson, null, 2) + '\n'); 17 | 18 | function getNextVersion(version) { 19 | const versionString = execSync(`npm show ${PACKAGE_NAME} versions --json`, { encoding: 'utf8'}); 20 | const versions = JSON.parse(versionString); 21 | 22 | if (versions.some(v => v === VERSION)) { 23 | console.error(`before-deploy: A release with version ${VERSION} already exists. Please increment version accordingly.`); 24 | process.exit(1); 25 | } 26 | 27 | const prereleaseNumbers = versions 28 | .filter(v => (v.startsWith(VERSION) && v.includes('-'))) 29 | .map(v => Number(v.match(/\.(\d+)$/)[1])); 30 | const lastPrereleaseNumber = Math.max(-1, ...prereleaseNumbers); 31 | return `${version}-beta.${lastPrereleaseNumber + 1}` 32 | } 33 | -------------------------------------------------------------------------------- /.github/workflows/check.yml: -------------------------------------------------------------------------------- 1 | # This workflow runs for every pull request to lint and test the proposed changes. 2 | 3 | name: Check 4 | 5 | on: 6 | pull_request: 7 | 8 | jobs: 9 | # NPM install is done in a separate job and cached to speed up the following jobs. 10 | build_and_test: 11 | name: Build & Test 12 | if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }} 13 | runs-on: ${{ matrix.os }} 14 | 15 | strategy: 16 | matrix: 17 | os: [ubuntu-latest, windows-latest, macos-latest] 18 | node-version: [ 12, 14, 15] 19 | 20 | steps: 21 | - 22 | uses: actions/checkout@v2 23 | - 24 | name: Use Node.js ${{ matrix.node-version }} 25 | uses: actions/setup-node@v1 26 | with: 27 | node-version: ${{ matrix.node-version }} 28 | - 29 | name: Cache Node Modules 30 | if: ${{ matrix.node-version == 14 }} 31 | uses: actions/cache@v2 32 | with: 33 | path: | 34 | node_modules 35 | build 36 | key: cache-${{ github.run_id }}-v14 37 | - 38 | name: Install Dependencies 39 | run: npm install 40 | - 41 | name: Run Tests 42 | run: npm test 43 | 44 | lint: 45 | name: Lint 46 | needs: [build_and_test] 47 | runs-on: ubuntu-latest 48 | 49 | steps: 50 | - 51 | uses: actions/checkout@v2 52 | - 53 | name: Use Node.js 14 54 | uses: actions/setup-node@v1 55 | with: 56 | node-version: 14 57 | - 58 | name: Load Cache 59 | uses: actions/cache@v2 60 | with: 61 | path: | 62 | node_modules 63 | build 64 | key: cache-${{ github.run_id }}-v14 65 | - 66 | run: npm run lint 67 | -------------------------------------------------------------------------------- /.github/workflows/release.yml: -------------------------------------------------------------------------------- 1 | name: Check & Release 2 | 3 | on: 4 | # Push to master will deploy a beta version 5 | push: 6 | branches: 7 | - master 8 | # A release via GitHub releases will deploy a latest version 9 | release: 10 | types: [ published ] 11 | 12 | jobs: 13 | # NPM install is done in a separate job and cached to speed up the following jobs. 14 | build_and_test: 15 | name: Build & Test 16 | if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }} 17 | runs-on: ${{ matrix.os }} 18 | 19 | strategy: 20 | matrix: 21 | os: [ubuntu-latest, windows-latest, macos-latest] 22 | node-version: [12, 14, 15] 23 | 24 | steps: 25 | - 26 | uses: actions/checkout@v2 27 | - 28 | name: Use Node.js ${{ matrix.node-version }} 29 | uses: actions/setup-node@v1 30 | with: 31 | node-version: ${{ matrix.node-version }} 32 | - 33 | name: Cache Node Modules 34 | if: ${{ matrix.node-version == 14 }} 35 | uses: actions/cache@v2 36 | with: 37 | path: | 38 | node_modules 39 | build 40 | key: cache-${{ github.run_id }}-v14 41 | - 42 | name: Install Dependencies 43 | run: npm install 44 | - 45 | name: Run Tests 46 | run: npm test 47 | 48 | lint: 49 | name: Lint 50 | needs: [build_and_test] 51 | runs-on: ubuntu-latest 52 | 53 | steps: 54 | - 55 | uses: actions/checkout@v2 56 | - 57 | name: Use Node.js 14 58 | uses: actions/setup-node@v1 59 | with: 60 | node-version: 14 61 | - 62 | name: Load Cache 63 | uses: actions/cache@v2 64 | with: 65 | path: | 66 | node_modules 67 | build 68 | key: cache-${{ github.run_id }}-v14 69 | - 70 | run: npm run lint 71 | 72 | 73 | # The deploy job is long but there are only 2 important parts. NPM publish 74 | # and triggering of docker image builds in the apify-actor-docker repo. 75 | deploy: 76 | name: Publish to NPM 77 | needs: [lint] 78 | runs-on: ubuntu-latest 79 | steps: 80 | - 81 | uses: actions/checkout@v2 82 | - 83 | uses: actions/setup-node@v1 84 | with: 85 | node-version: 14 86 | registry-url: https://registry.npmjs.org/ 87 | - 88 | name: Load Cache 89 | uses: actions/cache@v2 90 | with: 91 | path: | 92 | node_modules 93 | build 94 | key: cache-${{ github.run_id }}-v14 95 | - 96 | # Determine if this is a beta or latest release 97 | name: Set Release Tag 98 | run: echo "RELEASE_TAG=$(if [ ${{ github.event_name }} = release ]; then echo latest; else echo beta; fi)" >> $GITHUB_ENV 99 | - 100 | # Check version consistency and increment pre-release version number for beta only. 101 | name: Bump pre-release version 102 | if: env.RELEASE_TAG == 'beta' 103 | run: node ./.github/scripts/before-beta-release.js 104 | - 105 | name: Publish to NPM 106 | run: NODE_AUTH_TOKEN=${{secrets.NPM_TOKEN}} npm publish --tag ${{ env.RELEASE_TAG }} --access public 107 | - 108 | # Latest version is tagged by the release process so we only tag beta here. 109 | name: Tag Version 110 | if: env.RELEASE_TAG == 'beta' 111 | run: | 112 | git_tag=v`node -p "require('./package.json').version"` 113 | git tag $git_tag 114 | git push origin $git_tag 115 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Logs 2 | logs 3 | *.log 4 | npm-debug.log* 5 | yarn-debug.log* 6 | yarn-error.log* 7 | lerna-debug.log* 8 | 9 | # Diagnostic reports (https://nodejs.org/api/report.html) 10 | report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json 11 | 12 | # Runtime data 13 | pids 14 | *.pid 15 | *.seed 16 | *.pid.lock 17 | 18 | # Directory for instrumented libs generated by jscoverage/JSCover 19 | lib-cov 20 | 21 | # Coverage directory used by tools like istanbul 22 | coverage 23 | *.lcov 24 | 25 | # nyc test coverage 26 | .nyc_output 27 | 28 | # Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) 29 | .grunt 30 | 31 | # Bower dependency directory (https://bower.io/) 32 | bower_components 33 | 34 | # node-waf configuration 35 | .lock-wscript 36 | 37 | # Compiled binary addons (https://nodejs.org/api/addons.html) 38 | build/Release 39 | 40 | # Dependency directories 41 | node_modules/ 42 | jspm_packages/ 43 | 44 | # TypeScript v1 declaration files 45 | typings/ 46 | 47 | # TypeScript cache 48 | *.tsbuildinfo 49 | 50 | # Optional npm cache directory 51 | .npm 52 | 53 | # Optional eslint cache 54 | .eslintcache 55 | 56 | # Microbundle cache 57 | .rpt2_cache/ 58 | .rts2_cache_cjs/ 59 | .rts2_cache_es/ 60 | .rts2_cache_umd/ 61 | 62 | # Optional REPL history 63 | .node_repl_history 64 | 65 | # Output of 'npm pack' 66 | *.tgz 67 | 68 | # Yarn Integrity file 69 | .yarn-integrity 70 | 71 | # dotenv environment variables file 72 | .env 73 | .env.test 74 | 75 | # parcel-bundler cache (https://parceljs.org/) 76 | .cache 77 | 78 | # Next.js build output 79 | .next 80 | 81 | # Nuxt.js build / generate output 82 | .nuxt 83 | dist 84 | 85 | # Gatsby files 86 | .cache/ 87 | # Comment in the public line in if your project uses Gatsby and *not* Next.js 88 | # https://nextjs.org/blog/next-9-1#public-directory-support 89 | # public 90 | 91 | # vuepress build output 92 | .vuepress/dist 93 | 94 | # Serverless directories 95 | .serverless/ 96 | 97 | # FuseBox cache 98 | .fusebox/ 99 | 100 | # DynamoDB Local files 101 | .dynamodb/ 102 | 103 | # TernJS port file 104 | .tern-port 105 | package-lock.json 106 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | 3.0.0 / 2021/10/17 2 | ==================== 3 | First stable version. -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # (DEPRECATED) Fingerprint generator 2 | 3 | --- 4 | 5 | **DEPRECATED** The `fingerprint-generator` package now lives in the [fingerprint-suite](https://github.com/apify/fingerprint-suite) repository. This repository is no longer actively maintained. 6 | 7 | --- 8 | 9 | NodeJs package for generating realistic browser fingerprints and matching headers. 10 | 11 | Works best with the [Fingerprint injector](https://github.com/apify/fingerprint-injector). 12 | 13 | 14 | 15 | - [Installation](#installation) 16 | - [Usage](#usage) 17 | - [Result example](#result-example) 18 | - [API Reference](#api-reference) 19 | 20 | 21 | 22 | ## Installation 23 | Run the `npm install fingerprint-generator` command. No further setup is needed afterwards. 24 | ## Usage 25 | To use the generator, you need to create an instance of the `FingerprintGenerator` class which is exported from this package. Constructor of this class accepts a `HeaderGeneratorOptions` object, which can be used to globally specify what kind of fingerprint and headers you are looking for: 26 | ```js 27 | const FingerprintGenerator = require('fingerprint-generator'); 28 | let fingerprintGenerator = new FingerprintGenerator({ 29 | browsers: [ 30 | {name: "firefox", minVersion: 80}, 31 | {name: "chrome", minVersion: 87}, 32 | "safari" 33 | ], 34 | devices: [ 35 | "desktop" 36 | ], 37 | operatingSystems: [ 38 | "windows" 39 | ] 40 | }); 41 | ``` 42 | You can then get the fingerprint and headers using the `getFingerprint` method, either with no argument, or with another `HeaderGeneratorOptions` object, this time specifying the options only for this call (overwriting the global options when in conflict) and using the global options specified beforehands for the unspecified options: 43 | ```js 44 | let { fingerprint, headers } = fingerprintGenerator.getFingerprint({ 45 | operatingSystems: [ 46 | "linux" 47 | ], 48 | locales: ["en-US", "en"] 49 | }); 50 | ``` 51 | This method always generates a random realistic fingerprint and a matching set of headers, excluding the request dependant headers, which need to be filled in afterwards. Since the generation is randomized, multiple calls to this method with the same parameters can generate multiple different outputs. 52 | ## Result example 53 | Fingerprint that might be generated for the usage example above: 54 | ```json 55 | { 56 | "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0", 57 | "cookiesEnabled": true, 58 | "timezone": "Europe/Prague", 59 | "timezoneOffset": -60, 60 | "audioCodecs": { 61 | "ogg": "probably", 62 | "mp3": "maybe", 63 | "wav": "probably", 64 | "m4a": "maybe", 65 | "aac": "maybe" 66 | }, 67 | "videoCodecs": { 68 | "ogg": "probably", 69 | "h264": "probably", 70 | "webm": "probably" 71 | }, 72 | "videoCard": [ 73 | "Intel Open Source Technology Center", 74 | "Mesa DRI Intel(R) HD Graphics 4600 (HSW GT2)" 75 | ], 76 | "productSub": "20100101", 77 | "hardwareConcurrency": 8, 78 | "multimediaDevices": { 79 | "speakers": 0, 80 | "micros": 0, 81 | "webcams": 0 82 | }, 83 | "platform": "Linux x86_64", 84 | "pluginsSupport": true, 85 | "screenResolution": [ 1920, 1080 ], 86 | "availableScreenResolution": [ 1920, 1080 ], 87 | "colorDepth": 24, 88 | "touchSupport": { 89 | "maxTouchPoints": 0, 90 | "touchEvent": false, 91 | "touchStart": false 92 | }, 93 | "languages": [ "en-US", "en" ] 94 | } 95 | ``` 96 | And the matching headers: 97 | ```json 98 | { 99 | "user-agent": "Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0", 100 | "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", 101 | "accept-language": "en-US,en;q=0.9", 102 | "accept-encoding": "gzip, deflate, br", 103 | "upgrade-insecure-requests": "1", 104 | "te": "trailers" 105 | } 106 | ``` 107 | ## API Reference 108 | All public classes, methods and their parameters can be inspected in this API reference. 109 | 110 | 111 | 112 | ### FingerprintGenerator 113 | Fingerprint generator - randomly generates realistic browser fingerprints 114 | 115 | 116 | * [FingerprintGenerator](#FingerprintGenerator) 117 | * [`new FingerprintGenerator(options)`](#new_FingerprintGenerator_new) 118 | * [`.getFingerprint(options, requestDependentHeaders)`](#FingerprintGenerator+getFingerprint) 119 | 120 | 121 | * * * 122 | 123 | 124 | 125 | #### `new FingerprintGenerator(options)` 126 | 127 | | Param | Type | Description | 128 | | --- | --- | --- | 129 | | options | [HeaderGeneratorOptions](#HeaderGeneratorOptions) | default header generation options used unless overridden | 130 | 131 | 132 | * * * 133 | 134 | 135 | 136 | #### `fingerprintGenerator.getFingerprint(options, requestDependentHeaders)` 137 | Generates a fingerprint and a matching set of ordered headers using a combination of the default options specified in the constructor 138 | and their possible overrides provided here. 139 | 140 | 141 | | Param | Type | Description | 142 | | --- | --- | --- | 143 | | options | [HeaderGeneratorOptions](#HeaderGeneratorOptions) | specifies options that should be overridden for this one call | 144 | | requestDependentHeaders | Object | specifies known values of headers dependent on the particular request | 145 | 146 | 147 | * * * 148 | 149 | 150 | 151 | ### `BrowserSpecification` 152 | 153 | | Param | Type | Description | 154 | | --- | --- | --- | 155 | | name | string | One of `chrome`, `firefox` and `safari`. | 156 | | minVersion | number | Minimal version of browser used. | 157 | | maxVersion | number | Maximal version of browser used. | 158 | | httpVersion | string | Http version to be used to generate headers (the headers differ depending on the version). Either 1 or 2. If none specified the httpVersion specified in `HeaderGeneratorOptions` is used. | 159 | 160 | 161 | * * * 162 | 163 | 164 | 165 | ### `HeaderGeneratorOptions` 166 | 167 | | Param | Type | Description | 168 | | --- | --- | --- | 169 | | browsers | Array.<(BrowserSpecification\|string)> | List of BrowserSpecifications to generate the headers for, or one of `chrome`, `firefox` and `safari`. | 170 | | operatingSystems | Array.<string> | List of operating systems to generate the headers for. The options are `windows`, `macos`, `linux`, `android` and `ios`. | 171 | | devices | Array.<string> | List of devices to generate the headers for. Options are `desktop` and `mobile`. | 172 | | locales | Array.<string> | List of at most 10 languages to include in the [Accept-Language](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language) request header in the language format accepted by that header, for example `en`, `en-US` or `de`. | 173 | | httpVersion | string | Http version to be used to generate headers (the headers differ depending on the version). Can be either 1 or 2. Default value is 2. | 174 | 175 | 176 | * * * 177 | 178 | -------------------------------------------------------------------------------- /docs/README.md: -------------------------------------------------------------------------------- 1 | # Fingerprint generator 2 | NodeJs package for generating realistic browser fingerprints and matching headers. Works best with the [Fingerprint injector](https://github.com/apify/fingerprint-injector). 3 | 4 | 5 | 6 | - [Installation](#installation) 7 | - [Usage](#usage) 8 | - [Result example](#result-example) 9 | - [API Reference](#api-reference) 10 | 11 | 12 | 13 | ## Installation 14 | Run the `npm install fingerprint-generator` command. No further setup is needed afterwards. 15 | ## Usage 16 | To use the generator, you need to create an instance of the `FingerprintGenerator` class which is exported from this package. Constructor of this class accepts a `HeaderGeneratorOptions` object, which can be used to globally specify what kind of fingerprint and headers you are looking for: 17 | ```js 18 | const FingerprintGenerator = require('fingerprint-generator'); 19 | let fingerprintGenerator = new FingerprintGenerator({ 20 | browsers: [ 21 | {name: "firefox", minVersion: 80}, 22 | {name: "chrome", minVersion: 87}, 23 | "safari" 24 | ], 25 | devices: [ 26 | "desktop" 27 | ], 28 | operatingSystems: [ 29 | "windows" 30 | ] 31 | }); 32 | ``` 33 | You can then get the fingerprint and headers using the `getFingerprint` method, either with no argument, or with another `HeaderGeneratorOptions` object, this time specifying the options only for this call (overwriting the global options when in conflict) and using the global options specified beforehands for the unspecified options: 34 | ```js 35 | let { fingerprint, headers } = fingerprintGenerator.getFingerprint({ 36 | operatingSystems: [ 37 | "linux" 38 | ], 39 | locales: ["en-US", "en"] 40 | }); 41 | ``` 42 | This method always generates a random realistic fingerprint and a matching set of headers, excluding the request dependant headers, which need to be filled in afterwards. Since the generation is randomized, multiple calls to this method with the same parameters can generate multiple different outputs. 43 | ## Result example 44 | Fingerprint that might be generated for the usage example above: 45 | ```json 46 | { 47 | "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0", 48 | "cookiesEnabled": true, 49 | "timezone": "Europe/Prague", 50 | "timezoneOffset": -60, 51 | "audioCodecs": { 52 | "ogg": "probably", 53 | "mp3": "maybe", 54 | "wav": "probably", 55 | "m4a": "maybe", 56 | "aac": "maybe" 57 | }, 58 | "videoCodecs": { 59 | "ogg": "probably", 60 | "h264": "probably", 61 | "webm": "probably" 62 | }, 63 | "videoCard": [ 64 | "Intel Open Source Technology Center", 65 | "Mesa DRI Intel(R) HD Graphics 4600 (HSW GT2)" 66 | ], 67 | "productSub": "20100101", 68 | "hardwareConcurrency": 8, 69 | "multimediaDevices": { 70 | "speakers": 0, 71 | "micros": 0, 72 | "webcams": 0 73 | }, 74 | "platform": "Linux x86_64", 75 | "pluginsSupport": true, 76 | "screenResolution": [ 1920, 1080 ], 77 | "availableScreenResolution": [ 1920, 1080 ], 78 | "colorDepth": 24, 79 | "touchSupport": { 80 | "maxTouchPoints": 0, 81 | "touchEvent": false, 82 | "touchStart": false 83 | }, 84 | "languages": [ "en-US", "en" ] 85 | } 86 | ``` 87 | And the matching headers: 88 | ```json 89 | { 90 | "user-agent": "Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0", 91 | "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", 92 | "accept-language": "en-US,en;q=0.9", 93 | "accept-encoding": "gzip, deflate, br", 94 | "upgrade-insecure-requests": "1", 95 | "te": "trailers" 96 | } 97 | ``` 98 | ## API Reference 99 | All public classes, methods and their parameters can be inspected in this API reference. 100 | 101 | {{>all-docs~}} 102 | 103 | -------------------------------------------------------------------------------- /docs/build-docs.js: -------------------------------------------------------------------------------- 1 | const fs = require('fs-extra'); 2 | const jsdoc2md = require('jsdoc-to-markdown'); // eslint-disable-line 3 | const path = require('path'); 4 | 5 | const TEMPLATE_PATH = path.join(__dirname, 'README.md'); 6 | const README_PATH = path.resolve(__dirname, '..', 'README.md'); 7 | const SRC_DIR = path.resolve(__dirname, '..', 'src'); 8 | 9 | const getRenderOptions = (template, data) => ({ 10 | template, 11 | data, 12 | 'name-format': true, 13 | separators: true, 14 | 'param-list-format': 'table', 15 | 'property-list-format': 'table', 16 | 'heading-depth': 3, 17 | }); 18 | 19 | const generateFinalMarkdown = (text) => { 20 | // Remove 'Kind' annotations. 21 | return text.replace(/\*\*Kind\*\*.*\n/g, ''); 22 | }; 23 | 24 | const main = async () => { 25 | const indexData = await jsdoc2md.getTemplateData({ 26 | files: [path.join(SRC_DIR, 'main.js')], 27 | }); 28 | const classData = await jsdoc2md.getTemplateData({ 29 | files: [ 30 | path.join(SRC_DIR, 'fingerprint-generator.js'), 31 | ], 32 | }); 33 | 34 | let templateData = indexData.concat(classData); 35 | 36 | const EMPTY = Symbol('empty'); 37 | /* reduce templateData to an array of class names */ 38 | templateData.forEach((identifier) => { 39 | // @hideconstructor does not work, so we nudge it 40 | if (identifier.hideconstructor) { 41 | const idx = templateData.findIndex((i) => i.id === `${identifier.name}()`); 42 | templateData[idx] = EMPTY; 43 | } 44 | }); 45 | 46 | templateData = templateData.filter((d) => d !== EMPTY); 47 | 48 | const template = await fs.readFile(TEMPLATE_PATH, 'utf8'); 49 | const output = jsdoc2md.renderSync(getRenderOptions(template, templateData)); 50 | const markdown = generateFinalMarkdown(output); 51 | await fs.writeFile(README_PATH, markdown); 52 | }; 53 | 54 | main().then(() => console.log('All docs built successfully.')); 55 | -------------------------------------------------------------------------------- /jest.config.ts: -------------------------------------------------------------------------------- 1 | import type { Config } from '@jest/types'; 2 | 3 | export default async (): Promise => ({ 4 | verbose: true, 5 | preset: 'ts-jest', 6 | testEnvironment: 'node', 7 | testRunner: 'jest-circus/runner', 8 | testTimeout: 20_000, 9 | collectCoverage: false, // If true it messes the injection script and the browser is not able to execute it. 10 | maxWorkers: 3, 11 | globals: { 12 | 'ts-jest': { 13 | tsconfig: '/test/tsconfig.json', 14 | }, 15 | }, 16 | }); 17 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "fingerprint-generator", 3 | "version": "2.0.0", 4 | "description": "NodeJs package for generating realistic browser fingerprints.", 5 | "homepage": "https://github.com/apify/fingerprint-generator#readme", 6 | "engines": { 7 | "node": ">=15.10.0" 8 | }, 9 | "files": [ 10 | "dist" 11 | ], 12 | "main": "dist/index.js", 13 | "module": "dist/index.mjs", 14 | "types": "dist/index.d.ts", 15 | "exports": { 16 | ".": { 17 | "import": "./dist/index.mjs", 18 | "require": "./dist/index.js" 19 | } 20 | }, 21 | "scripts": { 22 | "build": "rimraf dist && tsc", 23 | "postbuild": "gen-esm-wrapper dist/index.js dist/index.mjs", 24 | "prepublishOnly": "npm run build", 25 | "lint": "eslint src test", 26 | "lint:fix": "eslint src test --fix", 27 | "test": "npm run build && jest", 28 | "build-docs": "npm run build && npm run build-toc && node docs/build-docs.js", 29 | "build-toc": "markdown-toc docs/README.md -i" 30 | }, 31 | "repository": { 32 | "type": "git", 33 | "url": "git+https://github.com/apify/fingerprint-generator.git" 34 | }, 35 | "author": "Apify", 36 | "license": "Apache-2.0", 37 | "bugs": { 38 | "url": "https://github.com/apify/fingerprint-generator/issues" 39 | }, 40 | "dependencies": { 41 | "csv-parse": "^4.15.3", 42 | "generative-bayesian-network": "0.1.0-beta.1", 43 | "header-generator": "^2.0.0-beta.9", 44 | "ow": "^0.24.1", 45 | "tslib": "^2.3.1" 46 | }, 47 | "devDependencies": { 48 | "@apify/eslint-config-ts": "^0.1.4", 49 | "@apify/tsconfig": "^0.1.0", 50 | "@types/jest": "^27.0.2", 51 | "@typescript-eslint/eslint-plugin": "^4.32.0", 52 | "@typescript-eslint/parser": "^4.32.0", 53 | "eslint": "^7.0.0", 54 | "gen-esm-wrapper": "^1.1.3", 55 | "jest": "^27.2.5", 56 | "jest-circus": "^27.2.4", 57 | "jsdoc-to-markdown": "^7.0.0", 58 | "markdown-toc": "^1.2.0", 59 | "ts-jest": "^27.0.5", 60 | "ts-node": "^10.2.1", 61 | "typescript": "^4.4.3" 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /src/constants.ts: -------------------------------------------------------------------------------- 1 | export const STRINGIFIED_PREFIX = '*STRINGIFIED*' as const; 2 | export const MISSING_VALUE_DATASET_TOKEN = '*MISSING_VALUE*' as const; 3 | -------------------------------------------------------------------------------- /src/fingerprint-generator.ts: -------------------------------------------------------------------------------- 1 | import { HeaderGenerator, HeaderGeneratorOptions, Headers } from 'header-generator'; 2 | 3 | // @ts-expect-error No ts definition 4 | import { BayesianNetwork } from 'generative-bayesian-network'; 5 | 6 | import fingerprintNetworkDefinition from './data_files/fingerprint-network-definition.json'; 7 | import { MISSING_VALUE_DATASET_TOKEN, STRINGIFIED_PREFIX } from './constants'; 8 | 9 | export type ScreenFingerprint = { 10 | availHeight: number, 11 | availWidth: number, 12 | pixelDepth: number, 13 | height: number, 14 | width: number, 15 | availTop: number, 16 | availLeft: number, 17 | colorDepth: number, 18 | innerHeight: number, 19 | outerHeight: number, 20 | outerWidth: number, 21 | innerWidth: number, 22 | screenX: number, 23 | pageXOffset: number, 24 | pageYOffset: number, 25 | devicePixelRatio: number, 26 | clientWidth: number, 27 | clientHeight: number, 28 | hasHDR: boolean; 29 | } 30 | 31 | export type NavigatorFingerprint = { 32 | userAgent: string, 33 | userAgentData: Record, 34 | doNotTrack: string, 35 | appCodeName: string, 36 | appName: string, 37 | appVersion: string, 38 | oscpu: string, 39 | webdriver: string, 40 | language: string, 41 | languages: string[], 42 | platform: string, 43 | deviceMemory?: number, // Firefox does not have deviceMemory available 44 | hardwareConcurrency: number, 45 | product: string, 46 | productSub: string, 47 | vendor: string, 48 | vendorSub: string, 49 | maxTouchPoints?: number, 50 | extraProperties: Record; 51 | } 52 | 53 | export type VideoCard = { 54 | renderer: string; 55 | vendor: string; 56 | } 57 | 58 | export type Fingerprint = { 59 | screen: ScreenFingerprint, 60 | navigator: NavigatorFingerprint, 61 | videoCodecs: Record, 62 | audioCodecs: Record, 63 | pluginsData: Record, 64 | battery?: Record, 65 | videoCard: VideoCard, 66 | multimediaDevices: string[], 67 | fonts: string[]; 68 | } 69 | 70 | export type BrowserFingerprintWithHeaders = { 71 | headers: Headers, 72 | fingerprint: Fingerprint, 73 | } 74 | /** 75 | * @typedef BrowserSpecification 76 | * @param {string} name - One of `chrome`, `edge`, `firefox` and `safari`. 77 | * @param {number} minVersion - Minimal version of browser used. 78 | * @param {number} maxVersion - Maximal version of browser used. 79 | * @param {string} httpVersion - Http version to be used to generate headers (the headers differ depending on the version). 80 | * Either 1 or 2. If none specified the httpVersion specified in `HeaderGeneratorOptions` is used. 81 | */ 82 | 83 | /** 84 | * @typedef HeaderGeneratorOptions 85 | * @param {Array} browsers - List of BrowserSpecifications to generate the headers for, 86 | * or one of `chrome`, `edge`, `firefox` and `safari`. 87 | * @param {string} browserListQuery - Browser generation query based on the real world data. 88 | * For more info see the [query docs](https://github.com/browserslist/browserslist#full-list). 89 | * If `browserListQuery` is passed the `browsers` array is ignored. 90 | * @param {Array} operatingSystems - List of operating systems to generate the headers for. 91 | * The options are `windows`, `macos`, `linux`, `android` and `ios`. 92 | * @param {Array} devices - List of devices to generate the headers for. Options are `desktop` and `mobile`. 93 | * @param {Array} locales - List of at most 10 languages to include in the 94 | * [Accept-Language](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language) request header 95 | * in the language format accepted by that header, for example `en`, `en-US` or `de`. 96 | * @param {string} httpVersion - Http version to be used to generate headers (the headers differ depending on the version). 97 | * Can be either 1 or 2. Default value is 2. 98 | */ 99 | 100 | /** 101 | * Fingerprint generator - randomly generates realistic browser fingerprints 102 | */ 103 | export class FingerprintGenerator extends HeaderGenerator { 104 | fingerprintGeneratorNetwork: BayesianNetwork; 105 | 106 | /** 107 | * @param {HeaderGeneratorOptions} options - default header generation options used unless overridden 108 | */ 109 | constructor(options: Partial = {}) { 110 | super(options); 111 | this.fingerprintGeneratorNetwork = new BayesianNetwork(fingerprintNetworkDefinition); 112 | } 113 | 114 | /** 115 | * Generates a fingerprint and a matching set of ordered headers using a combination of the default options specified in the constructor 116 | * and their possible overrides provided here. 117 | * @param {HeaderGeneratorOptions} options - specifies options that should be overridden for this one call 118 | * @param {Object} requestDependentHeaders - specifies known values of headers dependent on the particular request 119 | */ 120 | getFingerprint( 121 | options: Partial = {}, 122 | requestDependentHeaders: Record = {}, 123 | ): BrowserFingerprintWithHeaders { 124 | // Generate headers consistent with the inputs to get input-compatible user-agent and accept-language headers needed later 125 | const headers = super.getHeaders(options, requestDependentHeaders); 126 | const userAgent = 'User-Agent' in headers ? headers['User-Agent'] : headers['user-agent']; 127 | 128 | // Generate fingerprint consistent with the generated user agent 129 | const fingerprint: Record = this.fingerprintGeneratorNetwork.generateSample({ 130 | userAgent, 131 | }); 132 | 133 | /* Delete any missing attributes and unpack any object/array-like attributes 134 | * that have been packed together to make the underlying network simpler 135 | */ 136 | for (const attribute of Object.keys(fingerprint)) { 137 | if (fingerprint[attribute] === MISSING_VALUE_DATASET_TOKEN) { 138 | fingerprint[attribute] = null; 139 | } else if (fingerprint[attribute].startsWith(STRINGIFIED_PREFIX)) { 140 | fingerprint[attribute] = JSON.parse(fingerprint[attribute].slice(STRINGIFIED_PREFIX.length)); 141 | } 142 | } 143 | 144 | // Manually add the set of accepted languages required by the input 145 | const acceptLanguageHeaderValue = 'Accept-Language' in headers ? headers['Accept-Language'] : headers['accept-language']; 146 | const acceptedLanguages = []; 147 | for (const locale of acceptLanguageHeaderValue.split(',')) { 148 | acceptedLanguages.push(locale.split(';')[0]); 149 | } 150 | fingerprint.languages = acceptedLanguages; 151 | 152 | return { 153 | fingerprint: this._transformFingerprint(fingerprint), 154 | headers, 155 | }; 156 | } 157 | 158 | /** 159 | * Transforms fingerprint to the final scheme, more suitable for fingerprint manipulation and injection. 160 | * This schema is used in the fingerprint-injector. 161 | * @private 162 | * @param {Object} fingerprint 163 | * @returns {Object} final fingerprint. 164 | */ 165 | _transformFingerprint(fingerprint: Record): Fingerprint { 166 | const { 167 | userAgent, 168 | userAgentData, 169 | doNotTrack, 170 | appCodeName, 171 | appName, 172 | appVersion, 173 | oscpu, 174 | webdriver, 175 | languages, 176 | platform, 177 | deviceMemory, 178 | hardwareConcurrency, 179 | product, 180 | productSub, 181 | vendor, 182 | vendorSub, 183 | maxTouchPoints, 184 | extraProperties, 185 | screen, 186 | pluginsData, 187 | audioCodecs, 188 | videoCodecs, 189 | battery, 190 | videoCard, 191 | multimediaDevices, 192 | fonts, 193 | } = fingerprint; 194 | const parsedMemory = parseInt(deviceMemory, 10); 195 | const parsedTouchPoints = parseInt(maxTouchPoints, 10); 196 | 197 | const navigator = { 198 | userAgent, 199 | userAgentData, 200 | language: languages[0], 201 | languages, 202 | platform, 203 | deviceMemory: Number.isNaN(parsedMemory) ? null : parsedMemory, // Firefox does not have deviceMemory available 204 | hardwareConcurrency: parseInt(hardwareConcurrency, 10), 205 | maxTouchPoints: Number.isNaN(parsedTouchPoints) ? 0 : parsedTouchPoints, 206 | product, 207 | productSub, 208 | vendor, 209 | vendorSub, 210 | doNotTrack, 211 | appCodeName, 212 | appName, 213 | appVersion, 214 | oscpu, 215 | extraProperties, 216 | webdriver, 217 | }; 218 | 219 | return { 220 | screen, 221 | navigator, 222 | audioCodecs, 223 | videoCodecs, 224 | pluginsData, 225 | battery, 226 | videoCard, 227 | multimediaDevices, 228 | fonts, 229 | } as Fingerprint; 230 | } 231 | } 232 | -------------------------------------------------------------------------------- /src/index.ts: -------------------------------------------------------------------------------- 1 | export * from './fingerprint-generator'; 2 | export { PRESETS, HeaderGeneratorOptions, Headers } from 'header-generator'; 3 | -------------------------------------------------------------------------------- /test/generation.test.ts: -------------------------------------------------------------------------------- 1 | import { HeaderGeneratorOptions } from 'header-generator'; 2 | import { FingerprintGenerator, PRESETS } from '../src/index'; 3 | 4 | describe('Generation tests', () => { 5 | const fingerprintGenerator = new FingerprintGenerator(); 6 | test('Basic functionality', () => { 7 | const { fingerprint } = fingerprintGenerator.getFingerprint({ 8 | locales: ['en', 'es', 'en-US'], 9 | browsers: ['chrome'], 10 | devices: ['desktop'], 11 | }); 12 | expect(fingerprint.navigator.userAgent.includes('Chrome')).toBe(true); 13 | }); 14 | 15 | test('Works with presets', () => { 16 | const presets = Object.values(PRESETS); 17 | for (const preset of presets) { 18 | const { fingerprint } = fingerprintGenerator.getFingerprint({ ...preset } as Partial); 19 | expect(fingerprint).toBeDefined(); 20 | } 21 | }); 22 | test('Generates fingerprints without errors', () => { 23 | for (let x = 0; x < 10000; x++) { 24 | const { fingerprint } = fingerprintGenerator.getFingerprint({ 25 | locales: ['en', 'es', 'en-US'], 26 | }); 27 | 28 | expect(typeof fingerprint).toBe('object'); 29 | } 30 | }); 31 | 32 | test('Generates fingerprints with correct languages', () => { 33 | const { fingerprint } = fingerprintGenerator.getFingerprint({ 34 | locales: ['en', 'de', 'en-GB'], 35 | }); 36 | 37 | const fingerprintLanguages = fingerprint.navigator.languages; 38 | expect(fingerprintLanguages.length).toBe(3); 39 | expect(fingerprintLanguages.includes('en')).toBeTruthy(); 40 | expect(fingerprintLanguages.includes('de')).toBeTruthy(); 41 | expect(fingerprintLanguages.includes('en-GB')).toBeTruthy(); 42 | }); 43 | 44 | test('Generated fingerprint and headers match', () => { 45 | const { fingerprint, headers } = fingerprintGenerator.getFingerprint({ 46 | locales: ['en', 'de', 'en-GB'], 47 | }); 48 | 49 | const headersUserAgent = 'User-Agent' in headers ? headers['User-Agent'] : headers['user-agent']; 50 | expect(headersUserAgent === fingerprint.navigator.userAgent).toBeTruthy(); 51 | }); 52 | 53 | test('Transforms schema', () => { 54 | const { fingerprint } = fingerprintGenerator.getFingerprint(); 55 | 56 | expect(fingerprint.screen.width).toBeDefined(); 57 | expect(fingerprint.screen.height).toBeDefined(); 58 | expect(fingerprint.screen.availHeight).toBeDefined(); 59 | expect(fingerprint.screen.availWidth).toBeDefined(); 60 | expect(fingerprint.screen.pixelDepth).toBeDefined(); 61 | 62 | expect(fingerprint.navigator.language).toBeDefined(); 63 | expect(fingerprint.navigator.languages).toBeDefined(); 64 | expect(fingerprint.navigator.hardwareConcurrency).toBeDefined(); 65 | }); 66 | }); 67 | -------------------------------------------------------------------------------- /test/tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "../tsconfig.json", 3 | "compilerOptions": { 4 | "rootDirs": [ 5 | ".", 6 | "../src" 7 | ], 8 | "noEmit": true 9 | }, 10 | "include": [ 11 | ".", 12 | "../src/**/*" 13 | ] 14 | } 15 | -------------------------------------------------------------------------------- /tsconfig.eslint.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "./tsconfig.json", 3 | "include": [ 4 | "src", 5 | "test", 6 | "jest.config.ts" 7 | ] 8 | } 9 | -------------------------------------------------------------------------------- /tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "@apify/tsconfig", 3 | "compilerOptions": { 4 | "outDir": "dist", 5 | "skipLibCheck": true, 6 | "resolveJsonModule": true, 7 | "esModuleInterop": true, 8 | }, 9 | "include": [ 10 | "./src" 11 | ] 12 | } 13 | --------------------------------------------------------------------------------