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| /**
| * 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');
|
|
