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    n-captcha

    0.1.5 • Public • Published

    n-captcha

    nodejs captcha

    How to install

    • brew install pkg-config if you don't have

    • brew install cairo if you don't have

    • npm install n-captcha --save

    Config

    {
      //verify code length
      textLen: 4,
     
      //verify code color
      color: '#2897CE',
     
      //verify code bg-color
      background: '#DFDFDF',
     
      lineWidth: 3,
      fontSize: 3,
      imageW: 200,
      imageH: 80
     
      //identify level
      level: 3,
     
      //bezier Curve color
      bcColor: '#97BFB2',
      beforReqEndHooks: function(){}
    }

    How to use

    if you use express or koa you can use it as middleware

    You server code

    var app = express()();
    var ncaptcha = require('n-captcha');
    app.use(function(req, res, next) {
      if (req.url === '/captcha') {
        var options = {
          beforReqEndHooks: function(verifyCode) {
            if (req.session) req.session.ncaptcha = verifyCode;
            //do something you need
          }
        }
        var verifyCode = ncaptcha(options, res);
      } else {
        next();
      }
    })
     
    // route
     
    app.post('/p/doLogin', function() {
      var ncaptcha = req.body.ncaptcha;
      if (ncaptcha !== req.session.ncaptcha) {
        res.json({code: 1000, msg: 'make sure that captcha is right'})
      }
    })
     

    You client code

    <html>
     
    <body>
      <img src="/captcha">
    </body>
     
    </html>
     

    license

    MIT

    Install

    npm i n-captcha

    DownloadsWeekly Downloads

    0

    Version

    0.1.5

    License

    MIT

    Last publish

    Collaborators

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