gee-captcha.js
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'use strict';
/**
* 极验证
* Created by Tao.Huang on 2017/3/17.
*/
const Geetest = require('../models/captcha-gee-service');
const config = global.yoho.config;
const logger = global.yoho.logger;
const CAPTCHA = config.UNIVERSAL_CAPTCHA;
// 对比函数
const _mustEqual = (req) => {
return req.body.verifyCode === CAPTCHA;
};
var pcGeetest = new Geetest({
geetest_id: config.gee_captcha.id,
geetest_key: config.gee_captcha.key
});
const generate = (req, res, next) => {
pcGeetest.register(function(err, data) {
if (err) {
return;
}
if (!data.success) {
req.session.captchaType = 'img';
res.json({
code: 501,
data: data
});
} else {
// 正常模式
req.session.captchaType = 'geetest';
res.send({
code: 200,
data: data
});
}
});
};
/**
* 中间件检查
*/
const requiredAPI = (req, res, next) => {
let verifyCode = req.body.verifyCode || '';
let captcha = verifyCode.split(',');
if (!verifyCode) {
return res.send({
code: 405,
message: '未输入图形验证码，请输入图形验证码'
});
}
if (_mustEqual(req)) {
return next();
} else {
pcGeetest.validate({
challenge: captcha[0],
validate: captcha[1],
seccode: captcha[2]
}, function(err, success) {
logger.info(`geetest captcha auth [${err ? 'fail' : 'success'}]`,
`CLIENT [${req.body.verifyCode}] SERVER [${err}]`);
if (err) {
res.send({
message: '网络失败，请刷新图形验证码',
code: 405
});
} else if (!success) {
res.send({
message: '图形验证失败, 请刷新图形验证码',
code: 405
});
} else {
return next();
}
});
}
};
// 端到端检查
const checkAPI = (req, res) => {
let verifyCode = req.body.verifyCode || '';
let captcha = verifyCode.split(',');
if (!verifyCode) {
return res.send({
code: 405,
message: '参数失效'
});
}
if (_mustEqual(req)) {
return res.json({
message: '验证成功',
code: 200
});
}
pcGeetest.validate({
challenge: captcha[0],
validate: captcha[1],
seccode: captcha[2]
}, function(err, success) {
logger.info(`geetest captcha auth [${err ? 'fail' : 'success'}]`,
`CLIENT [${req.body.verifyCode}] SERVER [${err}]`);
if (err) {
return res.send({
message: '网络失败',
code: 405
});
} else if (!success) {
return res.send({
message: '图形验证失败',
code: 405
});
} else {
return res.send({
message: '验证成功',
code: 200
});
}
});
};
module.exports = {
generate,
requiredAPI,
checkAPI
};