Middleware captcha a middleware that provides captcha service for Macaron.
go get github.com/macaron-contrib/captcha
// main.go
import (
"github.com/Unknwon/macaron"
"github.com/macaron-contrib/cache"
"github.com/macaron-contrib/captcha"
)
func main() {
m := macaron.Classic()
m.Use(cache.Cacher())
m.Use(captcha.Captchaer())
m.Get("/", func(ctx *macaron.Context, cpt *captcha.Captcha) string {
if cpt.VerifyReq(ctx.Req) {
return "valid captcha"
}
return "invalid captcha"
})
m.Run()
}<!-- templates/hello.tmpl -->
{{.Captcha.CreateHtml}}captcha.Captchaer comes with a variety of configuration options:
// ...
m.Use(captcha.Captchaer(captcha.Options{
URLPrefix: "/captcha/", // URL prefix of getting captcha pictures.
FieldIdName: "captcha_id", // Hidden input element ID.
FieldCaptchaName: "captcha", // User input value element name in request form.
ChallengeNums: 6, // Challenge number.
Expiration: 600, // Captcha expiration time in seconds.
CachePrefix: "captcha_", // Cache key prefix captcha characters.
}))
// ...This project is under Apache v2 License. See the LICENSE file for the full license text.