diff --git a/.vscode/extensions.json b/.vscode/extensions.json index 22dcbf6..e461120 100644 --- a/.vscode/extensions.json +++ b/.vscode/extensions.json @@ -5,7 +5,7 @@ "dbaeumer.vscode-eslint", "editorconfig.editorconfig", "esbenp.prettier-vscode", - "jgclark.vscode-todo-highlight", + "Gruntfuggly.todo-tree", "streetsidesoftware.code-spell-checker-persian", "streetsidesoftware.code-spell-checker", "arcanis.vscode-zipfs" diff --git a/packages/nanotron/package.json b/packages/nanotron/package.json index 88e0d58..ef65c4c 100644 --- a/packages/nanotron/package.json +++ b/packages/nanotron/package.json @@ -59,7 +59,8 @@ "dependencies": { "@alwatr/crypto": "workspace:^", "@alwatr/nanolib": "^1.3.0", - "@alwatr/nanotron-api-server": "workspace:^" + "@alwatr/nanotron-api-server": "workspace:^", + "@alwatr/pre-handlers": "workspace:^" }, "devDependencies": { "@alwatr/nano-build": "^2.0.2", diff --git a/packages/nanotron/src/main.ts b/packages/nanotron/src/main.ts index 4583101..75f2331 100644 --- a/packages/nanotron/src/main.ts +++ b/packages/nanotron/src/main.ts @@ -2,5 +2,6 @@ import {packageTracer} from '@alwatr/nanolib'; export * from '@alwatr/nanotron-api-server'; export * from '@alwatr/crypto'; +export * from '@alwatr/pre-handlers'; __dev_mode__: packageTracer.add(__package_name__, __package_version__); diff --git a/packages/nanotron/tsconfig.json b/packages/nanotron/tsconfig.json index b9f8f74..7690cf7 100644 --- a/packages/nanotron/tsconfig.json +++ b/packages/nanotron/tsconfig.json @@ -8,5 +8,5 @@ "types": ["node", "@alwatr/nano-build", "@alwatr/type-helper"] }, "include": ["src/**/*.ts"], - "references": [{"path": "../api-server"}, {"path": "../crypto"}], + "references": [{"path": "../api-server"}, {"path": "../pre-handlers"}], } diff --git a/packages/pre-handlers/LICENSE b/packages/pre-handlers/LICENSE new file mode 100644 index 0000000..0ad25db --- /dev/null +++ b/packages/pre-handlers/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/packages/pre-handlers/README.md b/packages/pre-handlers/README.md new file mode 100644 index 0000000..69c7e32 --- /dev/null +++ b/packages/pre-handlers/README.md @@ -0,0 +1,15 @@ +# Pre Handlers + +## Sponsors + +The following companies, organizations, and individuals support Nanotron ongoing maintenance and development. Become a Sponsor to get your logo on our README and website. + +[![Exir Studio](https://avatars.githubusercontent.com/u/181194967?s=200&v=4)](https://exirstudio.com) + +### Contributing + +Contributions are welcome! Please read our [contribution guidelines](https://github.com/Alwatr/.github/blob/next/CONTRIBUTING.md) before submitting a pull request. + +### License + +This project is licensed under the [AGPL-3.0 License](LICENSE). diff --git a/packages/pre-handlers/package.json b/packages/pre-handlers/package.json new file mode 100644 index 0000000..0ec0704 --- /dev/null +++ b/packages/pre-handlers/package.json @@ -0,0 +1,75 @@ +{ + "name": "@alwatr/pre-handlers", + "version": "1.0.0-0", + "description": "Functions that will run before processing every defined route.", + "author": "S. Ali Mihandoost ", + "keywords": [ + "server", + "nanoservice", + "api", + "typescript", + "esm", + "route-pre-handlers", + "handlers", + "middleware", + "alwatr" + ], + "type": "module", + "main": "./dist/main.cjs", + "module": "./dist/main.mjs", + "types": "./dist/main.d.ts", + "exports": { + ".": { + "types": "./dist/main.d.ts", + "import": "./dist/main.mjs", + "require": "./dist/main.cjs" + } + }, + "license": "AGPL-3.0-only", + "files": [ + "**/*.{js,mjs,cjs,map,d.ts,html,md}", + "!demo/**/*" + ], + "publishConfig": { + "access": "public" + }, + "repository": { + "type": "git", + "url": "https://github.com/Alwatr/pre-handlers", + "directory": "packages/pre-handlers" + }, + "homepage": "https://github.com/Alwatr/pre-handlers#readme", + "bugs": { + "url": "https://github.com/Alwatr/pre-handlers/issues" + }, + "prettier": "@alwatr/prettier-config", + "scripts": { + "b": "yarn run build", + "t": "yarn run test", + "w": "yarn run watch", + "c": "yarn run clean", + "cb": "yarn run clean && yarn run build", + "d": "yarn run build:es && yarn node --enable-source-maps --trace-warnings", + "build": "yarn run build:ts & yarn run build:es", + "build:es": "nano-build --preset=module", + "build:ts": "tsc --build", + "test": "NODE_OPTIONS=\"$NODE_OPTIONS --enable-source-maps --experimental-vm-modules\" jest", + "watch": "yarn run watch:ts & yarn run watch:es", + "watch:es": "yarn run build:es --watch", + "watch:ts": "yarn run build:ts --watch --preserveWatchOutput", + "clean": "rm -rfv dist *.tsbuildinfo" + }, + "dependencies": { + "@alwatr/nanolib": "^1.3.0" + }, + "devDependencies": { + "@alwatr/nano-build": "^2.0.2", + "@alwatr/nanotron-api-server": "workspace:^", + "@alwatr/prettier-config": "^1.0.6", + "@alwatr/tsconfig-base": "^1.3.2", + "@alwatr/type-helper": "^2.0.2", + "@types/node": "^22.7.5", + "jest": "^29.7.0", + "typescript": "^5.6.3" + } +} diff --git a/packages/pre-handlers/src/handler/parse-body-as-json.ts b/packages/pre-handlers/src/handler/parse-body-as-json.ts new file mode 100644 index 0000000..a335304 --- /dev/null +++ b/packages/pre-handlers/src/handler/parse-body-as-json.ts @@ -0,0 +1,54 @@ +import {HttpStatusCodes} from '@alwatr/nanotron-api-server'; + +import type {NanotronClientRequest} from '@alwatr/nanotron-api-server'; + +/** + * Middleware to parses the request body as JSON and assigns it to `this.sharedMeta.body`. + * If the body is empty or invalid, it sends an error response, + * which triggers `terminatedHandlers` and prevents further handlers from executing. + * + * @this {NanotronClientRequest<{body: DictionaryOpt}>} + * @returns {Promise} A promise that resolves when the body is successfully parsed or an error response is sent. + * + * @example + * ```ts + * nanotronApiServer.defineRoute<{body: DictionaryOpt}>({ + * preHandlers: [parseBodyAsJson], + * async handler() { + * const body = this.sharedMeta.body; // json object + * }, + * }); + * ``` + */ +export async function parseBodyAsJson( + this: NanotronClientRequest<{body?: DictionaryOpt}>, +): Promise { + this.logger_.logMethod?.('parseBodyAsJson'); + const bodyBuffer = await this.getBodyRaw(); + + if (bodyBuffer.length === 0) { + this.logger_.error('parseBodyAsJson', 'body_required'); + this.serverResponse.statusCode = HttpStatusCodes.Error_Client_422_Unprocessable_Entity; + this.serverResponse.replyErrorResponse({ + ok: false, + errorCode: 'body_required', + errorMessage: 'Request body is required.', + }); + return; + } + + try { + this.sharedMeta.body = JSON.parse(bodyBuffer.toString()) as DictionaryOpt; + } + catch (error) { + this.logger_.error('parseBodyAsJson', 'invalid_body_json', error); + this.serverResponse.statusCode = HttpStatusCodes.Error_Client_422_Unprocessable_Entity; + this.serverResponse.replyErrorResponse({ + ok: false, + errorCode: 'invalid_body_json', + errorMessage: 'Invalid JSON in request body.', + }); + } + + this.logger_.logProperty?.('body', this.sharedMeta.body); +} diff --git a/packages/pre-handlers/src/handler/require-access-token.ts b/packages/pre-handlers/src/handler/require-access-token.ts new file mode 100644 index 0000000..59f0b12 --- /dev/null +++ b/packages/pre-handlers/src/handler/require-access-token.ts @@ -0,0 +1,53 @@ +import {HttpStatusCodes, type NanotronClientRequest} from '@alwatr/nanotron-api-server'; + +import {getAuthBearer} from '../lib/get-auth-bearer.js'; + +/** + * Middleware to require a valid access token for a Nanotron API request. + * + * This function checks the authorization header for a Bearer token and compares it to the provided access token. + * If the token is missing or invalid, it sends an appropriate error response and prevents further handlers from executing. + * + * @param {string} accessToken - The valid access token to compare against. + * @returns {Function} A middleware function for Nanotron API requests. + * + * @example + * ```ts + * nanotronApiServer.defineRoute({ + * method: 'POST', + * url: 'secure-endpoint', + * preHandlers: [requireAccessToken('mySecretToken')], + * async handler() { + * this.serverResponse.replyJson({ + * ok: true, + * message: 'Access granted!', + * }); + * }, + * }); + * ``` + */ +export const requireAccessToken = (accessToken: string) => + async function requireAccessToken_(this: NanotronClientRequest): Promise { + const userToken = getAuthBearer(this.headers.authorization); + this.logger_.logMethodArgs?.('requireAccessToken', {userToken}); + + if (userToken === null) { + this.serverResponse.statusCode = HttpStatusCodes.Error_Client_401_Unauthorized; + this.serverResponse.replyErrorResponse({ + ok: false, + errorCode: 'authorization_required', + errorMessage: 'Authorization token required', + }); + return; + } + + if (userToken !== accessToken) { + this.serverResponse.statusCode = HttpStatusCodes.Error_Client_403_Forbidden; + this.serverResponse.replyErrorResponse({ + ok: false, + errorCode: 'access_denied', + errorMessage: 'Access denied, token is invalid!', + }); + } + }; + diff --git a/packages/pre-handlers/src/lib/get-auth-bearer.ts b/packages/pre-handlers/src/lib/get-auth-bearer.ts new file mode 100644 index 0000000..ddbb1dc --- /dev/null +++ b/packages/pre-handlers/src/lib/get-auth-bearer.ts @@ -0,0 +1,26 @@ +/** + * Extracts the Bearer token from the authorization header. + * + * This function takes an optional authorization header string, extracts the Bearer token, and returns it. + * If the header is invalid or the token is missing, it returns null. + * + * @param {string} [authorizationHeader] - The authorization header string. + * @returns {string | null} The extracted Bearer token or null if the header is invalid. + * + * @example + * ```ts + * console.log(this.headers.authorization); // 'Bearer myToken123' + * const token = getAuthBearer(this.headers.authorization); + * console.log(token); // 'myToken123' + * + * const invalidToken = getAuthBearer('Basic myToken123'); + * console.log(invalidToken); // null + * ``` + */ +export function getAuthBearer(authorizationHeader?: string): string | null { + const auth = authorizationHeader?.split(' '); + if (!auth || auth[0].toLowerCase() !== 'bearer' || !auth[1]) { + return null; + } + return auth[1]; +} diff --git a/packages/pre-handlers/src/main.ts b/packages/pre-handlers/src/main.ts new file mode 100644 index 0000000..750645d --- /dev/null +++ b/packages/pre-handlers/src/main.ts @@ -0,0 +1,7 @@ +import {packageTracer} from '@alwatr/nanolib'; + +export * from './lib/get-auth-bearer.js'; +export * from './handler/parse-body-as-json.js'; +export * from './handler/require-access-token.js'; + +__dev_mode__: packageTracer.add(__package_name__, __package_version__); diff --git a/packages/pre-handlers/tsconfig.json b/packages/pre-handlers/tsconfig.json new file mode 100644 index 0000000..6d7a49f --- /dev/null +++ b/packages/pre-handlers/tsconfig.json @@ -0,0 +1,12 @@ +{ + "extends": "@alwatr/tsconfig-base/tsconfig.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "dist", + "emitDeclarationOnly": true, + "composite": true, + "types": ["node", "@alwatr/nano-build", "@alwatr/type-helper"] + }, + "include": ["src/**/*.ts"], + "references": [{"path": "../api-server"}], +} diff --git a/yarn.lock b/yarn.lock index 6859dcd..304598d 100644 --- a/yarn.lock +++ b/yarn.lock @@ -214,6 +214,7 @@ __metadata: "@alwatr/nano-build": "npm:^2.0.2" "@alwatr/nanolib": "npm:^1.3.0" "@alwatr/nanotron-api-server": "workspace:^" + "@alwatr/pre-handlers": "workspace:^" "@alwatr/prettier-config": "npm:^1.0.6" "@alwatr/tsconfig-base": "npm:^1.3.2" "@alwatr/type-helper": "npm:^2.0.2" @@ -270,6 +271,22 @@ __metadata: languageName: node linkType: hard +"@alwatr/pre-handlers@workspace:^, @alwatr/pre-handlers@workspace:packages/pre-handlers": + version: 0.0.0-use.local + resolution: "@alwatr/pre-handlers@workspace:packages/pre-handlers" + dependencies: + "@alwatr/nano-build": "npm:^2.0.2" + "@alwatr/nanolib": "npm:^1.3.0" + "@alwatr/nanotron-api-server": "workspace:^" + "@alwatr/prettier-config": "npm:^1.0.6" + "@alwatr/tsconfig-base": "npm:^1.3.2" + "@alwatr/type-helper": "npm:^2.0.2" + "@types/node": "npm:^22.7.5" + jest: "npm:^29.7.0" + typescript: "npm:^5.6.3" + languageName: unknown + linkType: soft + "@alwatr/prettier-config@npm:^1.0.6": version: 1.0.6 resolution: "@alwatr/prettier-config@npm:1.0.6" @@ -2209,6 +2226,15 @@ __metadata: languageName: node linkType: hard +"@types/node@npm:^22.7.5": + version: 22.8.1 + resolution: "@types/node@npm:22.8.1" + dependencies: + undici-types: "npm:~6.19.8" + checksum: 10c0/83550fdf72a7db5b55eceac3f4fb038844eaee20202bdd2297a8248370cfa08317bda1605b781a8043eda4f173b75e73632e652fc85509eb14dfef78fa17337f + languageName: node + linkType: hard + "@types/node@npm:^22.7.9": version: 22.7.9 resolution: "@types/node@npm:22.7.9" @@ -7854,7 +7880,7 @@ __metadata: languageName: node linkType: hard -"undici-types@npm:~6.19.2": +"undici-types@npm:~6.19.2, undici-types@npm:~6.19.8": version: 6.19.8 resolution: "undici-types@npm:6.19.8" checksum: 10c0/078afa5990fba110f6824823ace86073b4638f1d5112ee26e790155f481f2a868cc3e0615505b6f4282bdf74a3d8caad715fd809e870c2bb0704e3ea6082f344