node.js - 如何在前端离子角度项目中导入缓冲区库以使 node-rsa 工作
问题描述
我需要用node-rsa
Angular 加密 ionic 5 中的 wifi 密码。
我在Stackblitz上有一个正在运行的示例。但是,当我在 angular 10 和 ionic 5 中本地复制它时,它不起作用。
在本地 Angular 项目中,我缺少 nodejs 导入错误,我可以通过使用此处提出的解决方案来避免这些错误
ERROR in ./node_modules/node-rsa/src/schemes/pkcs1.js
Module not found: Error: Can't resolve 'constants' in '/Users/hanche/Documents/Development/playground/angular-node-rsa/node_modules/node-rsa/src/schemes'
ERROR in ./node_modules/node-rsa/src/NodeRSA.js
Module not found: Error: Can't resolve 'crypto' in '/Users/hanche/Documents/Development/playground/angular-node-rsa/node_modules/node-rsa/src'
之后我得到
Uncaught ReferenceError: Buffer is not defined
at Object.ovSY (pkcs1.js:9)
at __webpack_require__ (bootstrap:79)
at Object.mumJ (schemes.js:2)
at __webpack_require__ (bootstrap:79)
at Object.T+ye (rsa.js:46)
at __webpack_require__ (bootstrap:79)
at Object.WShU (NodeRSA.js:9)
at __webpack_require__ (bootstrap:79)
at Module.Sy1n (app.component.ts:1)
at __webpack_require__ (bootstrap:79)
这是我在生产应用程序中遇到的相同错误。我不明白为什么它在 stackblitz 上运行,而不是在本地开发环境中运行。
我的 package.json 是
{
"name": "angular-node-rsa",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"browser": {
"crypto": false,
"constants": false,
"fs": false,
"path": false
},
"private": true,
"dependencies": {
"@angular/animations": "~10.1.6",
"@angular/common": "~10.1.6",
"@angular/compiler": "~10.1.6",
"@angular/core": "~10.1.6",
"@angular/forms": "~10.1.6",
"@angular/platform-browser": "~10.1.6",
"@angular/platform-browser-dynamic": "~10.1.6",
"@angular/router": "~10.1.6",
"buffer": "^6.0.2",
"node-rsa": "^1.1.1",
"rxjs": "~6.6.0",
"tslib": "^2.0.0",
"zone.js": "~0.10.2"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.1001.7",
"@angular/cli": "~10.1.7",
"@angular/compiler-cli": "~10.1.6",
"@types/node": "^12.11.1",
"@types/jasmine": "~3.5.0",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "^6.0.0",
"jasmine-core": "~3.6.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~5.0.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage-istanbul-reporter": "~3.0.2",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"tslint": "~6.1.0",
"typescript": "~4.0.2"
}
}
我的 tsconfig.json 是
/* To learn more about this file see: https://angular.io/config/tsconfig. */
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"experimentalDecorators": true,
"moduleResolution": "node",
"importHelpers": true,
"target": "es2015",
"module": "esnext",
"lib": ["es2018", "dom","ESNext"],
"typeRoots": ["node_modules/@types"]
},
"angularCompilerOptions": {
"enableIvy": true,
"fullTemplateTypeCheck": true,
"strictInjectionParameters": true
}
}
import { Component } from '@angular/core';
import { Buffer } from 'buffer';
import NodeRSA from 'node-rsa';
const pubKey =
'30819F300D06092A864886F70D010101050003818D0030818902818100B2E9AFAFEED76A5C31D069F84328D785DFE6C40A69F51B29C7D7C91EF171A5EF6AD9FC30AF31F4B59C0FE317E47B5DBAA04E3753AC7F8B0E54D8EB4372894900DE247FD11B8C2208FE1C837ADEC409B0F2EE89A5C54B8AB80D5934FC65100406077D129DC5EB961E883B937C4251FDA4BD77224D1CDEF09151894F902758AA3B0203010001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss']
})
export class AppComponent {
title = 'angular-node-rsa';
encrypt() {
const buff = Buffer.from(pubKey, 'hex');
const rsa = new NodeRSA(buff.slice(22), 'pkcs1-public-der', {
encryptionScheme: 'pkcs1',
});
console.log(rsa.encrypt('abc', 'hex'));
}
}
解决方案
已在https://stackoverflow.com/a/59249136/5342949中解决
在 package.json 添加
"browser": {
"crypto": false,
"constants": false,
"fs": false,
"path": false
},
在 pollyfils.ts 添加
(window as any).global = window;
(window as any).global.Buffer = require('buffer').Buffer;
(window as any).process = {};
在 app.tsconfig.json 添加
"types": ["node"]
推荐阅读
- hive - Hive 中是否有 Bloom Filter UDF 功能?
- python - python for循环修改元素
- android - 您如何在 Mockito 或任何单元测试(用于覆盖)中测试布局绑定案例?
- mysql - MySQL,根据其他两个单独表中的值过滤表中的记录
- arrays - 使用 useState 更新数组
- python - 如何链接两个嵌套列表的元素?可能吗?
- postgresql - LIKE 运算符的高效 postgres 索引类型(固定结尾)
- tabulator - tabulator.js:下拉(编辑器:选择)响应不起作用?
- node.js - 最新节点 v 14.16.1 的 Angular2 Karma.config.js 错误
- google-cloud-platform - 将 SAML 属性 ForceAuthn 与 Google IdP 结合使用