From 627329633c1a4eb764cdb2ef61bcd58ce1cd016b Mon Sep 17 00:00:00 2001 From: blaine-arcjet <146491715+blaine-arcjet@users.noreply.github.com> Date: Mon, 4 Mar 2024 10:37:33 -0700 Subject: [PATCH] feat: Implement initial nodejs SDK (#268) This is an initial version of the Arcjet SDK for Node.js, which drastically smooths the process of using Arcjet with a simple Node server. It implements much of the same logic as the Next SDK, but pulls data exclusively from a Node.js `IncomingMessage` type. I've not implemented `createMiddleware` or `withArcjet` because they need addition considerations, for which I opened #267. Closes #49 Draft because we need a bunch of docs that I've linked to in the README that don't exist. --- .github/.release-please-manifest.json | 1 + .github/dependabot.yml | 22 +++ .github/release-please-config.json | 6 + arcjet-node/.eslintignore | 6 + arcjet-node/.eslintrc.cjs | 4 + arcjet-node/.gitignore | 135 +++++++++++++++ arcjet-node/LICENSE | 201 ++++++++++++++++++++++ arcjet-node/README.md | 123 ++++++++++++++ arcjet-node/index.ts | 235 ++++++++++++++++++++++++++ arcjet-node/jest.config.js | 16 ++ arcjet-node/package.json | 61 +++++++ arcjet-node/rollup.config.js | 3 + arcjet-node/tsconfig.json | 4 + examples/nodejs-rl/.env.local.example | 1 + examples/nodejs-rl/README.md | 36 ++++ examples/nodejs-rl/index.js | 34 ++++ examples/nodejs-rl/package-lock.json | 96 +++++++++++ examples/nodejs-rl/package.json | 14 ++ examples/nodejs-rl/tsconfig.json | 8 + package-lock.json | 61 ++++++- 20 files changed, 1066 insertions(+), 1 deletion(-) create mode 100644 arcjet-node/.eslintignore create mode 100644 arcjet-node/.eslintrc.cjs create mode 100644 arcjet-node/.gitignore create mode 100644 arcjet-node/LICENSE create mode 100644 arcjet-node/README.md create mode 100644 arcjet-node/index.ts create mode 100644 arcjet-node/jest.config.js create mode 100644 arcjet-node/package.json create mode 100644 arcjet-node/rollup.config.js create mode 100644 arcjet-node/tsconfig.json create mode 100644 examples/nodejs-rl/.env.local.example create mode 100644 examples/nodejs-rl/README.md create mode 100644 examples/nodejs-rl/index.js create mode 100644 examples/nodejs-rl/package-lock.json create mode 100644 examples/nodejs-rl/package.json create mode 100644 examples/nodejs-rl/tsconfig.json diff --git a/.github/.release-please-manifest.json b/.github/.release-please-manifest.json index a0400e70d..52a7484ea 100644 --- a/.github/.release-please-manifest.json +++ b/.github/.release-please-manifest.json @@ -3,6 +3,7 @@ "analyze": "1.0.0-alpha.8", "arcjet": "1.0.0-alpha.8", "arcjet-next": "1.0.0-alpha.8", + "arcjet-node": "1.0.0-alpha.8", "decorate": "1.0.0-alpha.8", "duration": "1.0.0-alpha.8", "eslint-config": "1.0.0-alpha.8", diff --git a/.github/dependabot.yml b/.github/dependabot.yml index 645b3a004..25bf85e8c 100644 --- a/.github/dependabot.yml +++ b/.github/dependabot.yml @@ -131,3 +131,25 @@ updates: # Headers in DOM. - dependency-name: "@types/node" versions: [">18.18"] + + - package-ecosystem: npm + directory: /examples/node-rl + schedule: + # Our dependencies should be checked daily + interval: daily + assignees: + - blaine-arcjet + reviewers: + - blaine-arcjet + commit-message: + prefix: deps(example) + prefix-development: deps(example) + groups: + dependencies: + patterns: + - "*" + ignore: + # Ignore updates to the @types/node package due to conflict between + # Headers in DOM. + - dependency-name: "@types/node" + versions: [">18.18"] diff --git a/.github/release-please-config.json b/.github/release-please-config.json index e204e6631..cebeef677 100644 --- a/.github/release-please-config.json +++ b/.github/release-please-config.json @@ -41,6 +41,10 @@ "component": "@arcjet/next", "skip-github-release": true }, + "arcjet-node": { + "component": "@arcjet/node", + "skip-github-release": true + }, "decorate": { "component": "@arcjet/decorate", "skip-github-release": true @@ -87,6 +91,8 @@ "@arcjet/analyze", "arcjet", "@arjcet/next", + "@arjcet/node", + "@arjcet/decorate", "@arjcet/duration", "@arcjet/eslint-config", "@arcjet/ip", diff --git a/arcjet-node/.eslintignore b/arcjet-node/.eslintignore new file mode 100644 index 000000000..9cfa2cae7 --- /dev/null +++ b/arcjet-node/.eslintignore @@ -0,0 +1,6 @@ +/.turbo/ +/coverage/ +/node_modules/ +*.d.ts +*.js +!*.config.js diff --git a/arcjet-node/.eslintrc.cjs b/arcjet-node/.eslintrc.cjs new file mode 100644 index 000000000..abe4cd7b4 --- /dev/null +++ b/arcjet-node/.eslintrc.cjs @@ -0,0 +1,4 @@ +module.exports = { + root: true, + extends: ["@arcjet/eslint-config"], +}; diff --git a/arcjet-node/.gitignore b/arcjet-node/.gitignore new file mode 100644 index 000000000..35b162da3 --- /dev/null +++ b/arcjet-node/.gitignore @@ -0,0 +1,135 @@ +# Logs +logs +*.log +npm-debug.log* +yarn-debug.log* +yarn-error.log* +lerna-debug.log* +.pnpm-debug.log* + +# Diagnostic reports (https://nodejs.org/api/report.html) +report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json + +# Runtime data +pids +*.pid +*.seed +*.pid.lock + +# Directory for instrumented libs generated by jscoverage/JSCover +lib-cov + +# Coverage directory used by tools like istanbul +coverage +*.lcov + +# nyc test coverage +.nyc_output + +# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) +.grunt + +# Bower dependency directory (https://bower.io/) +bower_components + +# node-waf configuration +.lock-wscript + +# Compiled binary addons (https://nodejs.org/api/addons.html) +build/Release + +# Dependency directories +node_modules/ +jspm_packages/ + +# Snowpack dependency directory (https://snowpack.dev/) +web_modules/ + +# TypeScript cache +*.tsbuildinfo + +# Optional npm cache directory +.npm + +# Optional eslint cache +.eslintcache + +# Optional stylelint cache +.stylelintcache + +# Microbundle cache +.rpt2_cache/ +.rts2_cache_cjs/ +.rts2_cache_es/ +.rts2_cache_umd/ + +# Optional REPL history +.node_repl_history + +# Output of 'npm pack' +*.tgz + +# Yarn Integrity file +.yarn-integrity + +# dotenv environment variable files +.env +.env.development.local +.env.test.local +.env.production.local +.env.local + +# parcel-bundler cache (https://parceljs.org/) +.cache +.parcel-cache + +# Next.js build output +.next +out + +# Nuxt.js build / generate output +.nuxt +dist + +# Gatsby files +.cache/ +# Comment in the public line in if your project uses Gatsby and not Next.js +# https://nextjs.org/blog/next-9-1#public-directory-support +# public + +# vuepress build output +.vuepress/dist + +# vuepress v2.x temp and cache directory +.temp +.cache + +# Docusaurus cache and generated files +.docusaurus + +# Serverless directories +.serverless/ + +# FuseBox cache +.fusebox/ + +# DynamoDB Local files +.dynamodb/ + +# TernJS port file +.tern-port + +# Stores VSCode versions used for testing VSCode extensions +.vscode-test + +# yarn v2 +.yarn/cache +.yarn/unplugged +.yarn/build-state.yml +.yarn/install-state.gz +.pnp.* + +# Generated files +index.js +index.d.ts +test/*.js diff --git a/arcjet-node/LICENSE b/arcjet-node/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/arcjet-node/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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+ + + +
+ +[Arcjet][arcjet] helps developers protect their apps in just a few lines of +code. Implement rate limiting, bot protection, email verification & defend +against common attacks. + +This is the [Arcjet][arcjet] SDK for [Node.js][node-js]. + +## Installation + +```shell +npm install -S @arcjet/node +``` + +## Rate limit example + +The [Arcjet rate limit][rate-limit-concepts-docs] example below applies a token +bucket rate limit rule to a route where we identify the user based on their ID +e.g. if they are logged in. The bucket is configured with a maximum capacity of +10 tokens and refills by 5 tokens every 10 seconds. Each request consumes 5 +tokens. + +```ts +import arcjet, { tokenBucket } from "@arcjet/node"; +import http from "node:http"; + +const aj = arcjet({ + key: process.env.ARCJET_KEY!, // Get your site key from https://app.arcjet.com + rules: [ + // Create a token bucket rate limit. Other algorithms are supported. + tokenBucket({ + mode: "LIVE", // will block requests. Use "DRY_RUN" to log only + characteristics: ["userId"], // track requests by a custom user ID + refillRate: 5, // refill 5 tokens per interval + interval: 10, // refill every 10 seconds + capacity: 10, // bucket maximum capacity of 10 tokens + }), + ], +}); + +const server = http.createServer(async function ( + req: http.IncomingMessage, + res: http.ServerResponse, +) { + const userId = "user123"; // Replace with your authenticated user ID + const decision = await aj.protect(req, { userId, requested: 5 }); // Deduct 5 tokens from the bucket + console.log("Arcjet decision", decision); + + if (decision.isDenied()) { + res.writeHead(429, { "Content-Type": "application/json" }); + res.end( + JSON.stringify({ error: "Too Many Requests", reason: decision.reason }), + ); + } else { + res.writeHead(200, { "Content-Type": "application/json" }); + res.end(JSON.stringify({ message: "Hello world" })); + } +}); + +server.listen(8000); +``` + +## Shield example + +[Arcjet Shield][shield-concepts-docs] protects your application against common +attacks, including the OWASP Top 10. It’s enabled by default and runs on every +request with negligible performance impact. + +```ts +import arcjet from "@arcjet/node"; +import http from "node:http"; + +const aj = arcjet({ + // Get your site key from https://app.arcjet.com + // and set it as an environment variable rather than hard coding. + // See: https://nextjs.org/docs/app/building-your-application/configuring/environment-variables + key: process.env.ARCJET_KEY, + rules: [], // Shield requires no rule configuration +}); + +const server = http.createServer(async function ( + req: http.IncomingMessage, + res: http.ServerResponse, +) { + const decision = await aj.protect(req); + + if (decision.isDenied()) { + res.writeHead(403, { "Content-Type": "application/json" }); + res.end(JSON.stringify({ error: "Forbidden" })); + } else { + res.writeHead(200, { "Content-Type": "application/json" }); + res.end(JSON.stringify({ message: "Hello world" })); + } +}); + +server.listen(8000); +``` + +## License + +Licensed under the [Apache License, Version 2.0][apache-license]. + +[arcjet]: https://arcjet.com +[node-js]: https://nodejs.org/ +[rate-limit-concepts-docs]: https://docs.arcjet.com/rate-limiting/concepts +[shield-concepts-docs]: https://docs.arcjet.com/shield/concepts +[apache-license]: http://www.apache.org/licenses/LICENSE-2.0 diff --git a/arcjet-node/index.ts b/arcjet-node/index.ts new file mode 100644 index 000000000..f36509fd5 --- /dev/null +++ b/arcjet-node/index.ts @@ -0,0 +1,235 @@ +import { createConnectTransport } from "@connectrpc/connect-node"; +import core, { + ArcjetDecision, + ArcjetOptions, + Primitive, + Product, + ArcjetHeaders, + Runtime, + ArcjetRequest, + ExtraProps, + RemoteClient, + RemoteClientOptions, + defaultBaseUrl, + createRemoteClient, + Arcjet, +} from "arcjet"; +import findIP from "@arcjet/ip"; + +// Re-export all named exports from the generic SDK +export * from "arcjet"; + +// Type helpers from https://github.com/sindresorhus/type-fest but adjusted for +// our use. +// +// Simplify: +// https://github.com/sindresorhus/type-fest/blob/964466c9d59c711da57a5297ad954c13132a0001/source/simplify.d.ts +// EmptyObject: +// https://github.com/sindresorhus/type-fest/blob/b9723d4785f01f8d2487c09ee5871a1f615781aa/source/empty-object.d.ts +// +// Licensed: MIT License Copyright (c) Sindre Sorhus