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express-useragent | NodeJS useragent middleware | Runtime Evironment library

by biggora JavaScript Version: v1.0.15 License: MIT

by biggora JavaScript Version: v1.0.15 License: MIT

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kandi X-RAY | express-useragent Summary

express-useragent is a JavaScript library typically used in Server, Runtime Evironment, Nodejs applications. express-useragent has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i express-useragent' or download it from GitHub, npm.

NodeJS user-agent middleware

Support

Support

Quality

Quality

Security

Security

License

License

Reuse

Reuse

kandi-support Support

express-useragent has a low active ecosystem.
It has 597 star(s) with 117 fork(s). There are 16 watchers for this library.
It had no major release in the last 12 months.
There are 30 open issues and 45 have been closed. On average issues are closed in 284 days. There are 13 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of express-useragent is v1.0.15

express-useragent Support

Best in #Runtime Evironment

Average in #Runtime Evironment

express-useragent Support

Best in #Runtime Evironment

Average in #Runtime Evironment

quality kandi Quality

express-useragent has 0 bugs and 0 code smells.

express-useragent Quality

Best in #Runtime Evironment

Average in #Runtime Evironment

express-useragent Quality

Best in #Runtime Evironment

Average in #Runtime Evironment

security Security

express-useragent has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
express-useragent code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

express-useragent Security

Best in #Runtime Evironment

Average in #Runtime Evironment

express-useragent Security

Best in #Runtime Evironment

Average in #Runtime Evironment

license License

express-useragent is licensed under the MIT License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.

express-useragent License

Best in #Runtime Evironment

Average in #Runtime Evironment

express-useragent License

Best in #Runtime Evironment

Average in #Runtime Evironment

build Reuse

express-useragent releases are available to install and integrate.
Deployable package is available in npm.
Installation instructions, examples and code snippets are available.
express-useragent saves you 13 person hours of effort in developing the same functionality from scratch.
It has 37 lines of code, 0 functions and 19 files.
It has low code complexity. Code complexity directly impacts maintainability of the code.

express-useragent Reuse

Best in #Runtime Evironment

Average in #Runtime Evironment

express-useragent Reuse

Best in #Runtime Evironment

Average in #Runtime Evironment

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express-useragent Key Features

NodeJS user-agent middleware

express-useragent Examples and Code Snippets

See all related Code Snippets

Installation

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    $ npm install express-useragent --save

Simple Node App

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var http = require('http')
  , useragent = require('express-useragent');

var srv = http.createServer(function (req, res) {
  var source = req.headers['user-agent'],
  ua = useragent.parse(source);
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end(JSON.stringify(ua));
});

srv.listen(3000);

for

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var useragent = require('express-useragent');

module.exports = function (app, express) {
    app.use(function () {
        app.use(useragent.express());
    });
};

for

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var express = require('express');
var app = express();
var useragent = require('express-useragent');

app.use(useragent.express());
app.get('/', function(req, res){
    res.send(req.useragent);
});
app.listen(3000);

Client Side

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    &lt;script type="text/javascript" src="/path/to/express-useragent.js"&gt;&lt;/script&gt;

Running Tests

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npm install
npm test

passport.js req.user is undefined

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passport.serializeUser(function(user, done) {
    done(null, user.id);
  });
  
  passport.deserializeUser(function(id, done) {
    User.findById(id, function(err, user) {
      done(err, user);
    });
  });

nodejs serve blob(base64) as image

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const img_base64 = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='

const server = require('http').createServer((req,res)=>{
  console.log('got req', req.url)

  // Extract image data
  const m = /^data:(.+?);base64,(.+)$/.exec(img_base64)
  if (!m) throw new Error(`Not a base64 image [${img_base64}]`)
  const [ _, content_type, file_base64 ] = m
  const file = Buffer.from(file_base64,'base64')

  res.writeHead(200, {
    'Content-Type': content_type,
    'Content-Length': file.length
  });
  res.end(file);
})

server.listen(3132, ()=> console.log('hi', server.address()))

See all related Code Snippets

Community Discussions

Trending Discussions on express-useragent

angular 13: Module not found: Error: Can't resolve 'rxjs/operators'
Websocket error that is only occuring on live server
passport.js req.user is undefined
nodejs serve blob(base64) as image

Trending Discussions on express-useragent

QUESTION

angular 13: Module not found: Error: Can't resolve 'rxjs/operators'

Asked 2022-Jan-22 at 05:29

I have upgraded my angular to angular 13. when I run to build SSR it gives me following error.

ERROR in ./node_modules/@angular/common/fesm2015/http.mjs 12:0-56
Module not found: Error: Can't resolve 'rxjs/operators' in '/Users/nr/aws/jobsaf-website-staging/application/node_modules/@angular/common/fesm2015'
Did you mean 'index.js'?
BREAKING CHANGE: The request 'rxjs/operators' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request.
 @ ./src/app/app.server.module.ts 6:0-57 16:25-42
 @ ./src/main.server.ts 3:0-58 3:0-58
 @ ./server.ts 32:0-52 40:15-30 44:0-34 44:0-34

ERROR in ./node_modules/@angular/core/fesm2015/core.mjs 8:0-39
Module not found: Error: Can't resolve 'rxjs/operators' in '/Users/nr/aws/jobsaf-website-staging/application/node_modules/@angular/core/fesm2015'
Did you mean 'index.js'?
BREAKING CHANGE: The request 'rxjs/operators' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request.
 @ ./server.ts 30:0-47 35:0-14

ERROR in ./node_modules/@angular/forms/fesm2015/forms.mjs 11:0-37
Module not found: Error: Can't resolve 'rxjs/operators' in '/Users/nr/aws/jobsaf-website-staging/application/node_modules/@angular/forms/fesm2015'
Did you mean 'index.js'?
BREAKING CHANGE: The request 'rxjs/operators' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request.
 @ ./src/app/app.module.ts 12:0-45 78:12-23
 @ ./src/app/app.server.module.ts 3:0-41 12:18-27
 @ ./src/main.server.ts 3:0-58 3:0-58
 @ ./server.ts 32:0-52 40:15-30 44:0-34 44:0-34

ERROR in ./node_modules/@angular/platform-server/fesm2015/platform-server.mjs 21:0-39
Module not found: Error: Can't resolve 'rxjs/operators' in '/Users/nr/aws/jobsaf-website-staging/application/node_modules/@angular/platform-server/fesm2015'
Did you mean 'index.js'?
BREAKING CHANGE: The request 'rxjs/operators' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request.
 @ ./src/main.server.ts 4:0-77 4:0-77 4:0-77
 @ ./server.ts 32:0-52 40:15-30 44:0-34 44:0-34

ERROR in ./node_modules/@angular/router/fesm2015/router.mjs 10:0-180
Module not found: Error: Can't resolve 'rxjs/operators' in '/Users/nr/aws/jobsaf-website-staging/application/node_modules/@angular/router/fesm2015'
Did you mean 'index.js'?
BREAKING CHANGE: The request 'rxjs/operators' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request.
 @ ./src/app/app.component.ts 2:0-48 35:31-44
 @ ./src/app/app.server.module.ts 2:0-47 13:20-32
 @ ./src/main.server.ts 3:0-58 3:0-58
 @ ./server.ts 32:0-52 40:15-30 44:0-34 44:0-34

my package.json file:

{
  "name": "admin-panel",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "start": "DEBUG=jobsaf-website:* nodemon --inspect --trace-warnings --legacy-watch  --trace-warnings ./bin/www",
    "seed": "node ./seeds/static-tables.js",
    "test-jobsaf": "mocha --timeout 10000",
    "rm-web": "rm -rf ./public/web/*",
    "ng": "node ./node_modules/@angular/cli/bin/ng serve --host 0.0.0.0",
    "ng:build": "node --max_old_space_size=5048 ./node_modules/@angular/cli/bin/ng  build --configuration production --aot",
    "build:server:prod": "node --max_old_space_size=4048 ./node_modules/@angular/cli/bin/ng run jobsaf-website:server:prod && webpack --config webpack.server.config.js",
    "build:browser:prod": "node --max_old_space_size=4048 ./node_modules/@angular/cli/bin/ng build --configuration production --aot --vendor-chunk --deleteOutputPath=true --buildOptimizer  --progress=true",
    "build:server:staging": "node --max_old_space_size=4048 ./node_modules/@angular/cli/bin/ng run jobsaf-website:server:staging && webpack --config webpack.server.config.js",
    "build:browser:staging": "node --max_old_space_size=4048 ./node_modules/@angular/cli/bin/ng build --configuration production --configuration=staging --aot --vendor-chunk --deleteOutputPath=true --buildOptimizer",
    "build:stats": "node --max_old_space_size=3192 node_modules/@angular/cli/bin/ng build --configuration production --aot --vendor-chunk --deleteOutputPath=true --buildOptimizer  --progress=true --configuration production --stats-json",
    "build:prod": "npm run rm-web && npm run build:server:prod && npm run build:browser:prod",
    "build:staging": "npm run rm-web && npm run build:server:staging && npm run build:browser:staging",
    "server": "node local.js",
    "file:migration": "APP_FILE_MIGRATION=true node ./migration/file-migration.js",
    "test_env": "set NODE_ENV=test",
    "jest": "jest --detectOpenHandles --watchAll --config ./jest.config.js",
    "coverage": "jest -i --coverage",
    "jest:ci": "jest --detectOpenHandles --forceExit --config ./jest.config.js",
    "test": "npm run test_env && npm run jest",
    "test:ci": "npm run test_env && npm run seed && npm run jest:ci",
    "dev:ssr": "ng run jobsaf-website:serve-ssr",
    "serve:ssr": "node public/web/server/main.js",
    "build:ssr": "ng build --configuration production && ng run jobsaf-website:server:prod",
    "prerender": "ng run jobsaf-website:prerender",
    "postinstall": "ngcc"
  },
  "private": true,
  "napa": {
    "jquery.flot.spline": "miloszfalinski/jquery.flot.spline",
    "ika.jvectormap": "kakirigi/ika.jvectormap"
  },
  "dependencies": {
    "@angular/animations": "^13.0.2",
    "@angular/common": "^13.0.2",
    "@angular/compiler": "^13.0.2",
    "@angular/compiler-cli": "^13.0.2",
    "@angular/core": "^13.0.2",
    "@angular/forms": "^13.0.2",
    "@angular/material": "^13.0.2",
    "@angular/platform-browser": "^13.0.2",
    "@angular/platform-browser-dynamic": "^13.0.2",
    "@angular/platform-server": "^13.0.2",
    "@angular/pwa": "^13.0.3",
    "@angular/router": "^13.0.2",
    "@angular/service-worker": "^13.0.2",
    "@fortawesome/angular-fontawesome": "^0.10.1",
    "@fortawesome/fontawesome-svg-core": "^1.2.36",
    "@fortawesome/free-brands-svg-icons": "^5.15.4",
    "@fortawesome/free-solid-svg-icons": "^5.15.4",
    "@fullcalendar/core": "^5.10.1",
    "@hapi/joi": "^15.1.0",
    "@ng-select/ng-select": "^8.1.1",
    "@nguniversal/common": "^13.0.1",
    "@nguniversal/express-engine": "^13.0.1",
    "@ngx-loading-bar/core": "^5.1.2",
    "@ngxs/store": "^3.7.3-dev.master-1e7127b",
    "@schematics/angular": "^13.0.3",
    "@sindresorhus/slugify": "^1.1.0",
    "@trademe/ng-defer-load": "^8.2.1",
    "@types/jquery": "^3.5.8",
    "angular-archwizard": "^7.0.0",
    "angular2-uuid": "^1.1.1",
    "apicache": "^1.6.3",
    "archiver": "^5.3.0",
    "aws-sdk": "^2.1031.0",
    "bluebird": "^3.7.2",
    "bootstrap": "5.1.3",
    "compression": "^1.7.4",
    "compromise": "^13.11.4",
    "cookie-parser": "^1.4.6",
    "core-js": "3.19.1",
    "cors": "~2.8.5",
    "debug": "^4.3.2",
    "dotenv": "^10.0.0",
    "easyimage": "^3.1.1",
    "ejs": "^3.1.6",
    "exceljs": "^4.3.0",
    "express": "^4.17.1",
    "express-jwt": "^6.1.0",
    "express-mongo-sanitize": "^2.1.0",
    "express-rate-limit": "^5.5.1",
    "express-useragent": "^1.0.15",
    "express-validator": "^6.13.0",
    "feed": "^4.2.2",
    "file-saver": "^2.0.5",
    "firebase-admin": "^10.0.0",
    "font-awesome": "^4.7.0",
    "generate-password": "^1.7.0",
    "google-auth-library": "^7.10.2",
    "hammerjs": "^2.0.8",
    "helmet": "^4.6.0",
    "html-pdf": "^3.0.1",
    "http-status": "^1.5.0",
    "intl-tel-input": "^17.0.13",
    "izitoast": "1.4.0",
    "joi-objectid": "^4.0.2",
    "jquery": "^3.6.0",
    "jsonwebtoken": "^8.5.1",
    "jwt-decode": "^3.1.2",
    "keyword-extractor": "0.0.20",
    "kickbox": "^2.0.4",
    "libphonenumber-js": "^1.9.43",
    "localstorage-polyfill": "^1.0.1",
    "lodash": "^4.17.21",
    "lodash.uniq": "^4.5.0",
    "md5": "^2.3.0",
    "moment": "^2.29.1",
    "mongoose": "5.8.11",
    "mongoose-history": "^0.8.0",
    "mongoose-unique-validator": "^2.0.3",
    "mongoose-url-slugs": "^1.0.2",
    "multer": "^1.4.3",
    "multer-s3": "^2.10.0",
    "multer-s3-transform": "^2.10.3",
    "mysql": "^2.18.1",
    "ng-recaptcha": "^9.0.0",
    "ng2-file-upload": "^1.4.0",
    "ngx-auth": "^5.4.0",
    "ngx-bootstrap": "^6.1.0",
    "ngx-facebook": "^3.0.0-0",
    "ngx-img-cropper": "^11.0.0",
    "ngx-infinite-scroll": "^10.0.1",
    "ngx-moment": "^5.0.0",
    "ngx-pagination": "^5.1.1",
    "ngx-quill-editor": "^2.2.2",
    "ngx-toastr": "^14.2.0",
    "node-schedule": "^2.0.0",
    "nodemailer": "^6.7.1",
    "passport": "^0.5.0",
    "passport-facebook-token": "^4.0.0",
    "passport-google-id-token": "^0.4.7",
    "passport-google-token": "^0.1.2",
    "passport-linkedin-token": "^0.1.1",
    "passport-local": "^1.0.0",
    "pdf-to-text": "0.0.7",
    "phantomjs-prebuilt": "^2.1.16",
    "phone": "^3.1.10",
    "phpass": "^0.1.1",
    "rand-token": "^1.0.1",
    "request": "^2.88.2",
    "request-ip": "^2.1.3",
    "rxjs": "^6.5.5",
    "sharp": "^0.29.3",
    "showdown": "^1.9.1",
    "simple-line-icons": "^2.5.5",
    "socket.io": "^4.3.2",
    "socket.io-client": "^4.3.2",
    "socket.io-redis": "^5.4.0",
    "socketio-auth": "^0.1.1",
    "textract": "^2.5.0",
    "ts-loader": "9.2.6",
    "underscore": "^1.13.1",
    "unique-random-array": "^2.0.0",
    "url": "^0.11.0",
    "util": "^0.12.4",
    "uuid": "^8.3.2",
    "winston": "^3.3.3",
    "xlsx": "^0.17.4",
    "xss-clean": "^0.1.1",
    "zone.js": "~0.11.4",
    "zxcvbn": "^4.4.2"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~13.0.3",
    "@angular/cli": "^13.0.3",
    "@types/express": "^4.17.13",
    "@types/hammerjs": "^2.0.40",
    "@types/mocha": "^9.0.0",
    "@types/node": "^16.11.7",
    "@types/underscore": "^1.11.3",
    "husky": "^7.0.0",
    "jasmine-core": "~3.10.1",
    "jasmine-spec-reporter": "~7.0.0",
    "jest": "^27.3.1",
    "karma": "^6.3.9",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage-istanbul-reporter": "^3.0.3",
    "karma-jasmine": "~4.0.1",
    "karma-jasmine-html-reporter": "^1.7.0",
    "lint-staged": "^12.0.2",
    "mocha": "^9.1.3",
    "ng-diff-match-patch": "^3.0.1",
    "nodemon": "^2.0.15",
    "protractor": "^7.0.0",
    "supertest": "^6.1.6",
    "tslib": "^2.3.1",
    "tslint": "^6.1.3",
    "typescript": "4.4.3",
    "webpack": "^5.64.1",
    "webpack-cli": "^4.9.1"
  }
}

Any Idea

ANSWER

Answered 2022-Jan-22 at 05:29

I just solve this issue by correcting the RxJS version to 7.4.0. I hope this can solve others issue as well.

Source https://stackoverflow.com/questions/70589846

QUESTION

Websocket error that is only occuring on live server

Asked 2021-Feb-23 at 03:27

Bizarre situation going on here with my websocket. It's giving me the error Error during WebSocket handshake: Unexpected response code: 200 Which for the life of me I cannot figure out why.

I've set up a very similar server with the exact same code with the exact same servers & settings. The only difference is one server has a .com TLD while the other has a .sg TLD.

I've reduced it down to the simplest form, which is the below and the error is still happening. It's on the api side for sure and not the frontend as the frontend can connect to the .com TLD.

Below is all the code that I believe is related to the problem. If you think there might be other areas please ask and I will post other areas. It's hosted on AWS Elastic Beanstalk. I've also set the SSL cert to domain.com & *.domain.com

Does anybody know why this might be happening?

The bizarre thing to me is I literally set up a server with these exact settings and it's working perfectly fine.

server.js (start point in package.json)

'use strict';

(async function() {

  // Server Setup
  const WSServer = require('ws').Server;
  const app = await require('./app.js');
  const server = require('http').createServer(app);
  const port = 3075;

  // Create web socket server on top of a regular http server
  const wss = new WSServer({
    server: server
  });

  // Also mount the app here
  // server.on('request', app);

  let sendMessage = {
    "connected":"connected to web socket",
  }
  
  wss.on('connection', function connection(ws) {
    ws.send(JSON.stringify(sendMessage));
    ws.on('message', async function incoming(message) {
      let interval = setInterval(async () => {
        console.log("ping");
        ws.send(message);
      }, 500);
    });
    ws.on('close', function close() {
      console.log('/socket connection Closed');
    });
  });

  server.listen(process.env.PORT || port, function() {
    console.log(`AppName https/wss is listening on port ${process.env.PORT || port}`);
  });

})();

app.js (removed much of the code that is irrelevant to this question)

module.exports = (async function() {

  const {Config,Environments} = await require("./common/config");
  const packageJson = require('./package.json');

  // Handler


  const AuthFunc = await require("./funcs/user/auth");
  const BillingFunc = await require("./funcs/billing/billing");
  const ObjectUtil = require("./utils/object");
  const AccountStatusEnum = require("./enums/account-status").accountStatusEnum;

  const sleep = require('util').promisify(setTimeout);
  const {t} = require('./translations/i18n').i18n;
  const {availableLanguages} = require('./translations/all');


  // Simulate real API calls
  const delayResponse = 250;// milliseconds

  // ==============================================
  // Base setup
  // ==============================================

  process.env.TZ = "Etc/GMT"

  const express     = require('express');
  const app         = express();
  var expressWs = require('express-ws')(app);
  const bodyParser  = require('body-parser');

  app.use(bodyParser.urlencoded({ extended: true }));
  app.use(bodyParser.json());

  app.use(require('express-useragent').express());

  // Cors
  app.use(async function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, auth-id, auth-token, x-csrf-token, _csrf");
    res.header('Access-Control-Allow-Methods', 'PATCH, POST, GET, DELETE, OPTIONS');
    next();
  });

  // ==============================================
  // Auth
  // ==============================================

  const normRoute = (req, res, next) => {
    req.body = (req.body != undefined && req.body != null) ? ObjectUtil.toCamelCaseKeys(req.body) : req.body;

    response(req,res,next(req));
  }

  // Does not need to be logged in but passes user info if logged in
  const passRoute = async (req, res, next) => {
    authRoute(req, res, next, AccountStatusEnum.any, true);
  }

  const authRoute = async (req, res, next, minimumStatus, passRoute) => {
    req.body = (req.body != undefined && req.body != null) ? ObjectUtil.toCamelCaseKeys(req.body) : req.body;

    let authId = (req.headers['auth-id'] !== undefined) ? req.headers['auth-id'] :"";
    let authToken = (req.headers['auth-token'] !== undefined) ? req.headers['auth-token'] : "";

    let r = await AuthFunc.authUser(
                req,
                req.ip,
                req.useragent,
                authId,
                authToken,
                minimumStatus,
              );
    if(r.err.code){
      if(r.err.authError && passRoute){
        response(req,res,next(req,null));
        return false;
      }else{
        response(req,res,r); 
        return false;
      }
    }  

    let user = r.res.user;
    r = await BillingFunc.updateSubStatus(req,user);
    if(r.err.code){ response(req,res,r); return false; }

    if(r.res.userStatus !== undefined){
      user.status = r.res.userStatus;
    }

    response(req,res,next(req,user));
  }

  // ===============================================================
  // Routes
  // ===============================================================

  app.get('/', function(req, res) {
    res.send(
      '<html>'+
        '<head></head>'+
        '<body>'+
          'API is running <br>'+
          'App: '+Config.FrontEnd.AppName+'<br>'+
          'Env: '+Config.Env+'<br>'+
          'Version: '+packageJson.version+'<br>'+
        '</body>'+
      '</html>'
    );  
  });


  // ==============================================
  // Response type
  // ==============================================

  const response = async (req,res,obj) => { 
    await obj;

    Promise.resolve(obj).then(function(val) {
      if(delayResponse >= 1 && (Config.Env === Environments.Local)){
        
        setTimeout(function(){  
          resume(req,res,val);
        }, delayResponse);
        return true;
      } 
      resume(req,res,val);
    });
  }

  const resume = (req,res,obj) => {
    obj = (obj === undefined) ? {} : obj;

    var status = (obj.status !== undefined) ? obj.status : 200;
    // Let status override settings
    if(obj.status === undefined){
      if((obj.err.code)){
        status = 400;
      }else if(obj.res === undefined || ObjectUtil.isEmpty(obj.res)){
        // status = 204;
      }
    }

    let json = {};
    json.err = obj.err;
    json.res = obj.res;

    json = ObjectUtil.toCamelCaseKeys(json);
    res.status(status).json(json);

  }

  // ==============================================
  // Return the app
  // ==============================================

  return app;
})();

package.json

{
  "name": "name-api",
  "version": "1.17.0",
  "description": "name-api",
  "main": "server.js",
  "dependencies": {
    "axios": "^0.21.1",
    "cookie-parser": "^1.4.4",
    "express": "^4.17.1",
    "express-session": "^1.17.1",
    "express-useragent": "^1.0.13",
    "express-ws": "^4.0.0",
    "googleapis": "^50.0.0",
    "mocha": "^8.0.1",
    "mysql": "github:mysqljs/mysql",
    "nodemailer": "^6.4.6",
    "query-string": "^6.12.1",
    "stripe": "^8.60.0",
    "ws": "^7.4.3"
  },
  "devDependencies": {},
  "scripts": {
    "test": "mocha",
    "start": "node server.js"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/..."
  },
  "author": "",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/..."
  },
  "homepage": "https://github.com/..."
}

ANSWER

Answered 2021-Feb-23 at 03:27

Problem solved.

It was a load balancer issue. Apparently this doesn't work well with Classic Load Balancer. I believe it's due to the way it's requested.

Changing over to a Application Load balancer fixed the issue for me.

Source https://stackoverflow.com/questions/66325626

QUESTION

passport.js req.user is undefined

Asked 2021-Jan-18 at 10:20

I'm building a nodejs app with express and using passport for authentication. I'm a relative beginner to the platform having only worked with it for 3 weeks. I'm running into problems as my server does not save the user information.

I can login correctly using MongoDB as my database source. The information is fetched correctly from the database, and it appears to validate correctly with passport. However, the information does not persist and req.user is undefined upon redirect.

I've tried for hours reordering middleware having searched other questions and answers but nothing seems to be working! I really don't know what's wrong.

app.js `

const express = require('express');
const app = express();
app.use(express.static(__dirname + '/public'));
app.set('views', __dirname + '/views');
const http = require('http').Server(app);
const cookieParser = require('cookie-parser');
const session = require('express-session');
const flash = require('connect-flash');
const passport = require('passport');
const io = require('socket.io')(http);
const mongo = require('./controllers/mongo');
var ObjectID = require('mongodb').ObjectID;


app.use(express.urlencoded({extended : false}));
app.set('view engine', 'ejs');
app.use(require('express-useragent').express());



app.use(cookieParser());
app.use(session({
    secret : 'secret',
    resave : true,
    saveUninitialized : true
}));
app.use(flash());
app.use((req,res,next)=> {
    res.locals.success_msg = req.flash('success_msg');
    res.locals.error_msg = req.flash('error_msg');
    res.locals.error  = req.flash('error');
    next();
})
    
app.use(passport.initialize());
app.use(passport.session());
    



//router
const router = express.Router();

async function start_app() {
    await mongo.init();
    require("./controllers/passport")(passport);
    require("./controllers/gameio")(io);

    
    
    app.use('/forums', require('./routes/forums'));
    app.use('/user', require('./routes/users'));
    app.use('/tournaments', require('./routes/tournaments'));
    app.use('/members', require('./routes/memberlist'));
    app.use('/profile', require('./routes/profile'));
    app.use('/lobby', require('./routes/lobby'));
    app.use('/game', require('./routes/game'));
    app.use('/watch', require('./routes/watch'));

}
start_app();


const server = http.listen(8080, function() {
    console.log('listening on *:8080');
});
module.exports = router;

`

passport configuration `

const express = require('express');
const router = express.Router();
const LocalStrategy = require('passport-local').Strategy;
const bcrypt = require('bcrypt');
const { dbo } = require('../controllers/mongo');

module.exports = function(passport) {
    passport.use(
        new LocalStrategy({usernameField : 'email'},async function(email,password,done) {
            //match user
            await dbo.getUser({userEmail : email})
                .then((user)=>{
                if(!user) {
                   return done(null,false,{message : 'that email is not registered'});
                }
                
                console.log(user); // returns the relevant chunk of the user table fetched
                
                //match pass
                bcrypt.compare(password,user.userPassword,(err,isMatch)=>{
                    if(err) throw err;

                    if(isMatch) {
                        return done(null,user);
                    } else {
                        return done(null,false,{message : 'pass incorrect'});
                    }
                })
            })
            .catch((err)=> {console.log(err)})
        })
        
    )
    passport.serializeUser(function(user, done) {
        console.log(user); // returns the relevant chunk of the user table fetched
        
        done(null, user);
    });
      
    passport.deserializeUser(function(id, done) {
        done(null, null);
    }); 
}; 
`

user login page `

router.post('/login',(req,res,next)=>{
passport.authenticate('local',{
        successRedirect : '/forums',
        failureRedirect : '/user/login',
        failureFlash : true,
    })(req,res,next);
 })

`

ANSWER

Answered 2021-Jan-18 at 10:20

serializeUser determines which data of the user object should be stored in the session and deserializeUser The first argument of deserializeUser corresponds to the key of the user object that was given to the done function, so do like this:

passport.serializeUser(function(user, done) {
    done(null, user.id);
  });
  
  passport.deserializeUser(function(id, done) {
    User.findById(id, function(err, user) {
      done(err, user);
    });
  });

Source https://stackoverflow.com/questions/65766817

QUESTION

nodejs serve blob(base64) as image

Asked 2020-Nov-24 at 02:06

I know there's two other similar questions, but mine just isn't working and I'm not sure why.

I'm trying to serve a blob image saved in base64 on a nodejs server.

It's just not serving and I have no clue why. If I comment out the "writeHead" part it shows the base64 like it should. I've tried it with data:image/jpeg and without. I've also tried converting it to a buffer. Just can't seem to figure it out.

The base64 image is less than 200 kb and is saved in a mediumblob

Can anyone see what I'm doing wrong

app.get("/f/:id", async function(req, res) {
  r = await Files.get(req);
  if(r.err.code){
    console.log("error",r);
  }
  var file = r.res.file;

  res.writeHead(200, {
    'Content-Type': 'image/png',
    'Content-Length': file.length
  });
  res.end(file);
});

Here's what it looks like in the browser Here's what it looks like without writeHead enabled

Note: the "viewPortSize" id element at the bottom is an extension.

Edit #1: Also on Firefox it says "the image cannot be displayed because of errors" This must mean I've encoded it into base64 incorrectly right?

Edit #3: Actually it is saved correctly because if I remove headers and display it as html with an img and src it shows the image properly..now I really don't know what the issue is.

Edit #2:Here's the app.js setup

// ==============================================
// Base setup
// ==============================================

process.env.TZ = "Etc/GMT"

const express     = require('express');
const session     = require('express-session');
const app         = express();
const port        = 3075;
const bodyParser  = require('body-parser');

app.use(bodyParser.urlencoded({limit: '50mb', extended: true }));
app.use(bodyParser.json({limit: '50mb'}));

app.use(require('express-useragent').express());
app.use(session({
  secret: 'keyboard cat',
  resave: false,
  saveUninitialized: true,
  cookie: { secure: true }
}))

// Cors
app.use(async function(req, res, next) {

  let allowOrigins = [
    // removed for SO
  ];

  if(Config.Env === Environments.Local){
    res.header("Access-Control-Allow-Origin", "*");
    req.session.language = req.query.lg;
  }else{
    res.header("Access-Control-Allow-Origin", Config.FrontEnd.Url);
    var origin = req.get('origin');
    for (let i = 0; i < allowOrigins.length; i++) {
      const allowOrigin = allowOrigins[i];
      if(origin.match(allowOrigin)){
        res.header("Access-Control-Allow-Origin", origin);
      }
    }

    var subdomain = origin.split('.')[0];
    for (let j = 0; j < availableLanguages.length; j++) {
      const lang = availableLanguages[j];
      if(lang.code === subdomain){
        req.session.language = lang.code;
        break;
      }    
    }
  }

  // if(Config.Env !== Environments.Local){
    if(req.session.language !== undefined && req.session.language !== "en"){
      Config.FrontEnd.Url = Config.FrontEnd.Url.replace("://", "://"+req.session.language+".");
    }
  // }


  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, auth-id, auth-token, x-csrf-token, _csrf");
  res.header('Access-Control-Allow-Methods', 'PATCH, POST, GET, DELETE, OPTIONS');
  next();
});

Edit #4: If I send it like this(with the data part on it) , the image shows like it should. However the headers are not of an image. (if I change to image it goes back to the black screen)

app.get("/f/:id", async function(req, res) {
  r = await Files.get(req);
  if(r.err.code){
    console.log("error",r);
  }
  var file = r.res.file;

  res.end(
    '<html>'+
      '<head></head>'+
      '<body>'+
          '<img src="'+file+'">'+
      '</body>'+
    '</html>'
  );
});

ANSWER

Answered 2020-Nov-24 at 02:06

If the database stores a data:image/png;base64,xxxx string then it would need to be converted back to the binary data to be part of a response with a content type of image/png (like a regular image file).

const img_base64 = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='

const server = require('http').createServer((req,res)=>{
  console.log('got req', req.url)

  // Extract image data
  const m = /^data:(.+?);base64,(.+)$/.exec(img_base64)
  if (!m) throw new Error(`Not a base64 image [${img_base64}]`)
  const [ _, content_type, file_base64 ] = m
  const file = Buffer.from(file_base64,'base64')

  res.writeHead(200, {
    'Content-Type': content_type,
    'Content-Length': file.length
  });
  res.end(file);
})

server.listen(3132, ()=> console.log('hi', server.address()))

Source https://stackoverflow.com/questions/64938748

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install express-useragent

Installation is done using the Node Package Manager (npm). If you don't have npm installed on your system you can download it from npmjs.org To install express-useragent:.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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