#Update in 0.3.3 更新内容 You can modify the api server address
你现在可以修改APIServer的地址了
Use register api to check the server status, if it return false, switch to local captcha manually
现在可以用register接口作为检查服务器是否正常的方法，如果register返回false则切换为本地验证码
Pass public key to use register API, optional right now, if you don't use it now, the captcha might broke some time in the future
将你的Public Key作为第二个参数传入，此参数现在为可选参数，只有传入才能够使用register接口。Register接口可能在将来成为必须的接口
#Install 安装
npm install geetest
#Setup 配置
PRIVATE_KEY is the key, PUBLIC_KEY is the ID
var geetest = require('geetest')('YOUR_PRIVATE_KEY', ['YOUR_PUBLIC_KEY');#Usage 使用流程
###1.Init with private key and public key 使用私钥和公钥初始化
var geetest = require('geetest)('Private key', 'Public Key'[, 'api server'])If you are authorized to modify api server, pass the api server as third parameter, it must ends with '/'
如果是可以自定义api地址的用户，可以将api地址作为第三个参数传入，注意要以'/'结尾，例如'http://api.geetest.com/'
###2.Use register api to get challenge on each request 在每次用户请求验证码时使用register接口获取challenge
geetest.register(function(challenge) {
if(challenge) {
//deal with it
res.json({challenge: challenge})
}
})###3.Add captcha script to your page 在页面上添加验证的script
Put the challenge into the src 将challenge作为参数传入src
$http.get('/request/to/your/register/api').success(function(e) {
var s = document.createElement('script');
s.src = 'http://api.geetest.com/get.php?gt=yourPublicKey&challenge=' + challenge;
s.async = true;
document.body.append(s);//append the script where ever you want
})###4.Validate the result 验证前端的提交
See Validate API or Express Middleware below
见以下Validate接口或Express中间件
#Node.js Validate API 验证函数
geetest.validate({
challenge: //form's [geetest_challenge],
validate: //form's [geetest_validate],
seccode: //form's [geetest_seccode],
}, function(result) {
if(result) {
//validate pass
}
else {
//validate fail
}
})#Node.js Register API 验证函数
geetest.register(function(challenge) {
if(challenge) {
//put this challenge into the request of get in your website
//将challenge作为参数传入前端的get请求
}
else {
//Fail to reach the server, use failback method
//无法链接无服务器，使用本地验证码
}
})#Express
Note: express.bodyParser() is required for geetest-sdk's bodyParser.
##Use as middleware 使用中间件
###Router 路由:
app.post('/someForm', geetest.bodyParser, yourHandler);###API:
module.exports.yourHandler = function(req, res) {
if(req.geetest) {
console.log('GeeTest captcha validation pass');
//DO WHAT EVER NEXT
res.json({success: true})
}
else {
res.json({err: 'GeeTest captcha validation fail'});
}
}
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