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	Added a new captcha(cloudflare turnstile) and its corresponding document. Cloudflare turnstile official instructions are here: https://developers.cloudflare.com/turnstile Signed-off-by: ByLCY <bylcy@bylcy.dev> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: Jason Song <i@wolfogre.com>
		
			
				
	
	
		
			94 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2020 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package context
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| 
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| import (
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| 	"fmt"
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| 	"sync"
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| 
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| 	"code.gitea.io/gitea/modules/base"
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| 	"code.gitea.io/gitea/modules/cache"
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| 	"code.gitea.io/gitea/modules/hcaptcha"
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| 	"code.gitea.io/gitea/modules/log"
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| 	"code.gitea.io/gitea/modules/mcaptcha"
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| 	"code.gitea.io/gitea/modules/recaptcha"
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| 	"code.gitea.io/gitea/modules/setting"
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| 	"code.gitea.io/gitea/modules/turnstile"
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| 
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| 	"gitea.com/go-chi/captcha"
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| )
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| 
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| var (
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| 	imageCaptchaOnce sync.Once
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| 	cpt              *captcha.Captcha
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| )
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| 
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| // GetImageCaptcha returns global image captcha
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| func GetImageCaptcha() *captcha.Captcha {
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| 	imageCaptchaOnce.Do(func() {
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| 		cpt = captcha.NewCaptcha(captcha.Options{
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| 			SubURL: setting.AppSubURL,
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| 		})
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| 		cpt.Store = cache.GetCache()
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| 	})
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| 	return cpt
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| }
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| 
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| // SetCaptchaData sets common captcha data
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| func SetCaptchaData(ctx *Context) {
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| 	if !setting.Service.EnableCaptcha {
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| 		return
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| 	}
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| 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
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| 	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
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| 	ctx.Data["Captcha"] = GetImageCaptcha()
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| 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
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| 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
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| 	ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
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| 	ctx.Data["McaptchaSitekey"] = setting.Service.McaptchaSitekey
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| 	ctx.Data["McaptchaURL"] = setting.Service.McaptchaURL
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| 	ctx.Data["CfTurnstileSitekey"] = setting.Service.CfTurnstileSitekey
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| }
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| 
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| const (
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| 	gRecaptchaResponseField  = "g-recaptcha-response"
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| 	hCaptchaResponseField    = "h-captcha-response"
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| 	mCaptchaResponseField    = "m-captcha-response"
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| 	cfTurnstileResponseField = "cf-turnstile-response"
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| )
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| 
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| // VerifyCaptcha verifies Captcha data
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| // No-op if captchas are not enabled
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| func VerifyCaptcha(ctx *Context, tpl base.TplName, form interface{}) {
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| 	if !setting.Service.EnableCaptcha {
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| 		return
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| 	}
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| 
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| 	var valid bool
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| 	var err error
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| 	switch setting.Service.CaptchaType {
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| 	case setting.ImageCaptcha:
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| 		valid = GetImageCaptcha().VerifyReq(ctx.Req)
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| 	case setting.ReCaptcha:
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| 		valid, err = recaptcha.Verify(ctx, ctx.Req.Form.Get(gRecaptchaResponseField))
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| 	case setting.HCaptcha:
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| 		valid, err = hcaptcha.Verify(ctx, ctx.Req.Form.Get(hCaptchaResponseField))
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| 	case setting.MCaptcha:
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| 		valid, err = mcaptcha.Verify(ctx, ctx.Req.Form.Get(mCaptchaResponseField))
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| 	case setting.CfTurnstile:
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| 		valid, err = turnstile.Verify(ctx, ctx.Req.Form.Get(cfTurnstileResponseField))
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| 	default:
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| 		ctx.ServerError("Unknown Captcha Type", fmt.Errorf("Unknown Captcha Type: %s", setting.Service.CaptchaType))
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| 		return
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| 	}
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| 	if err != nil {
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| 		log.Debug("%v", err)
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| 	}
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| 
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| 	if !valid {
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| 		ctx.Data["Err_Captcha"] = true
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| 		ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tpl, form)
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| 	}
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| }
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