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    captchapngpublic

    #Captcha PNG generator A numeric captcha generator for Node.js

    Features

    • Only generate numeric captcha PNG image
    • Build-in fonts
    • Characters up and down, left and right limits, random displacement
    • Full JavaScript

    Examples

    /**
     * Captcha PNG img generator
     * @Author: George Chan
     * @Email: gchan@21cn.com
     * @Version: 1.0
     * @Date: 2013-08-18
     * @license http://www.opensource.org/licenses/bsd-license.php BSD License
     */
     
    var http = require('http');
    var captchapng = require('captchapng');
     
    http.createServer(function (request, response) {
        if(request.url == '/captcha.png') {
            var p = new captchapng(80,30,parseInt(Math.random()*9000+1000)); // width,height,numeric captcha 
            p.color(0, 0, 0, 0);  // First color: background (red, green, blue, alpha) 
            p.color(80, 80, 80, 255); // Second color: paint (red, green, blue, alpha) 
     
            var img = p.getBase64();
            var imgbase64 = new Buffer(img,'base64');
            response.writeHead(200, {
                'Content-Type': 'image/png'
            });
            response.end(imgbase64);
        } else response.end('');
    }).listen(8181);
     
    console.log('Web server started.\n http:\\\\127.0.0.1:8181\\captcha.png');

    Keywords

    none

    install

    npm i captchapng

    Downloadslast 7 days

    545

    version

    0.0.1

    license

    none

    repository

    github.com

    last publish

    collaborators

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