captcha: function (req, res) {
if (req.url == '/favicon.ico')return res.end('');//Intercept request favicon.ico
//var str_ary = ['2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
// 'I', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];
//var str_num = 6,
// r_num = str_ary.length,
// text = '';
//for (var i = 0; i < str_num; i++) {
// var pos = Math.floor(Math.random() * r_num);
// text += str_ary[pos];//生成随机数
//}
//var cc=ccap({generate:function(){return text}});
//var ary = cc.get();
//var txt = ary[0];
//var buf = ary[1];
//req.session.captchaText = txt.toLowerCase();
//res.end(buf);
var txt = parseInt(Math.random() * 9000 + 1000);
var p = new captchapng(80, 30, txt); // 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');
req.session.captchaText = txt;
res.writeHead(200, {
'Content-Type': 'image/png'
});
res.end(imgbase64);
}
this.coroutines.getResource.main = Promise.coroutine(function* (req, res, next) {
var captcha = yield mongoose.model('Captcha').create({}),
img = new captchapng(160, 60, captcha.code);
img.color(0, 0, 0, 0);
img.color(80, 80, 80, 255);
res.setHeader('Content-Type', 'image/png');
res.send(201, new Buffer(img.getBase64(), 'base64'));
next();
});
commonHelper.captcha = function(width,height,code) {
var captchapng = require('captchapng');
var p = new captchapng(width,height, code);
p.color(0, 0, 0, 80);
p.color(20, 20, 20, 255);
var img = p.getBase64();
var imgbase64 = new Buffer(img,'base64');
return imgbase64;
}
captcha: function(req, res){
var num = req.session.captcha = parseInt(Math.random()*9000+1000);
var p = new captchapng(80, 30, num);
p.color(0, 0, 0, 0);
p.color(80, 80, 80, 250);
var img = p.getBase64();
var imgbase64 = new Buffer(img, 'base64');
res.header('Content-type', 'image/png');
res.send(imgbase64);
},
app.get('/yanzhenma', function (req, res) {
var ranNumber = parseInt(Math.random()*9000+1000);
req.session.yanzhenma = ranNumber;
var p = new captchapng(80,30,ranNumber); // width,height,numeric captcha
p.color(153, 153, 153, 255); // First color: background (red, green, blue, alpha)
p.color(255, 255, 255, 255); // Second color: paint (red, green, blue, alpha)
var img = p.getBase64();
var imgbase64 = new Buffer(img,'base64');
res.set('Content-Type', 'image/png');
res.send(imgbase64);
})
module.exports = function(){//req,res
var verificationcode = parseInt(Math.random()*9000+1000)
var p = new captchapng(80,30,verificationcode); // 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');
return {
img:imgbase64,
verificationcode:verificationcode.toString()
}
}
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);
exports.testGenerate = function(test){
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();
test.equals(typeof img, "string", "should be base64 string");
var imgbase64 = new Buffer(img,'base64');
test.ok(imgbase64!=null);
test.done();
}
app.get('/captcha.png', function (req, res) {
var cap = parseInt(Math.random() * 9000 + 1000);
var p = new captchapng(100, 34, cap);
p.color(parseInt(Math.random()*255), parseInt(Math.random()*255), parseInt(Math.random()*255), parseInt(Math.random()*255));
p.color(parseInt(Math.random()*255), parseInt(Math.random()*255), parseInt(Math.random()*255), parseInt(Math.random()*255));
req.session.captcha = {
captcha: cap,
expire: (new Date()).getTime() + 1000 * 60 * 10
}
var img = p.getBase64();
var imgbase64 = new Buffer(img, 'base64');
res.setHeader('Content-Type', 'image/png');
res.send(imgbase64);
});
exports.getVcodeImage = (req, res) => {
const vcode = parseInt(Math.random() * 9000 + 1000);
// 把刚刚随机生成的验证码，存储到session中
req.session.vcode = vcode;
var p = new captchapng(80, 30, vcode); // 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");
res.writeHead(200, {
"Content-Type": "image/png"
});
res.end(imgbase64);
};
function capture (req, res) {
hoh = parseInt(Math.random()*9000 + 1000);
if(req.url == '/captcha.png') {
var p = new captchapng(80,30, hoh);
p.color(0, 0, 0, 0);
p.color(80, 80, 80, 255);
var img = p.getBase64();
var imgbase64 = new Buffer(img,'base64');
res.writeHead(200, {
'Content-Type': 'image/png'
});
res.end(imgbase64);
} else {
res.end('');
}
}
exports.generateImgCode=function(req,res)
{
var width=!isNaN(parseInt(req.query.width))?parseInt(req.query.width):100;
var height=!isNaN(parseInt(req.query.height))?parseInt(req.query.height):30;
var code = parseInt(Math.random()*9000+1000);
req.session.checkcode = code;
var p = new captchapng(width,height, code);
p.color(0, 0, 0, 0);
p.color(80, 80, 80, 255);
var img = p.getBase64();
var imgbase64 = new Buffer(img,'base64');
res.writeHead(200, {
'Content-Type': 'image/png'
});
res.end(imgbase64);
}
router.get('/png', function (req, res, next) {
var width=!isNaN(parseInt(req.query.width))?parseInt(req.query.width):108;
var height=!isNaN(parseInt(req.query.height))?parseInt(req.query.height):44;
var code = parseInt(Math.random()*9000+1000);
var codeStr = code + '';
codeStr = codeStr.replace(/1/g, 2);
codeStr = codeStr.replace(/7/g, 8);
//req.session.checkcode = code;
var p = new captchapng(width,height, parseInt(codeStr));
p.color(0, 0, 0, 0);
p.color(80, 80, 80, 255);
var img = p.getBase64();
var imgbase64 = new Buffer(img,'base64');
req.session.captcha = codeStr;
res.writeHead(200, {
'Content-Type': 'image/png'
});
res.end(imgbase64);
});
var captchaImg = function() {
var p = new captchapng(80, 30, n); // width, height, numeric captcha
p.color(250, 250, 250, 255); // First color: background (red, green, hare, alpha)
p.color(parseInt(Math.random() * 100), parseInt(Math.random() * 100), parseInt(Math.random() * 100), 255); // Second color: paint (red, green, blue, alpha)
return new Buffer(p.getBase64(), 'base64');
};