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Add option to enable CAPTCHA validation for login (#21638)

Browse source 
Enable this to require captcha validation for user login. You also must
enable `ENABLE_CAPTCHA`.

Summary:
- Consolidate CAPTCHA template
- add CAPTCHA handle and context
- add `REQUIRE_CAPTCHA_FOR_LOGIN` config and docs
- Consolidate CAPTCHA set-up and verification code 

Partially resolved #6049 

Signed-off-by: Xinyu Zhou <i@sourcehut.net>
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
Xinyu Zhou 2022-11-23 05:13:18 +08:00 committed by GitHub
parent e77b76425e
commit 68e934ab5d
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
14 changed files with 128 additions and 180 deletions
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3
custom/conf/app.example.ini
View file

@ -759,6 +759,9 @@ ROUTER = console
;; Enable captcha validation for registration
;ENABLE_CAPTCHA = false
;;
;; Enable this to require captcha validation for login
;REQUIRE_CAPTCHA_FOR_LOGIN = false
;;
;; Type of captcha you want to use. Options: image, recaptcha, hcaptcha, mcaptcha.
;CAPTCHA_TYPE = image
;;

1
docs/content/doc/advanced/config-cheat-sheet.en-us.md
View file

@ -634,6 +634,7 @@ Certain queues have defaults that override the defaults set in `[queue]` (this o
- `ENABLE_REVERSE_PROXY_FULL_NAME`: **false**: Enable this to allow to auto-registration with a
provided full name for the user.
- `ENABLE_CAPTCHA`: **false**: Enable this to use captcha validation for registration.
- `REQUIRE_CAPTCHA_FOR_LOGIN`: **false**: Enable this to require captcha validation for login. You also must enable `ENABLE_CAPTCHA`.
- `REQUIRE_EXTERNAL_REGISTRATION_CAPTCHA`: **false**: Enable this to force captcha validation
even for External Accounts (i.e. GitHub, OpenID Connect, etc). You also must enable `ENABLE_CAPTCHA`.
- `CAPTCHA_TYPE`: **image**: \[image, recaptcha, hcaptcha, mcaptcha\]

3
docs/content/doc/advanced/config-cheat-sheet.zh-cn.md
View file

@ -145,7 +145,8 @@ menu:
- `ENABLE_NOTIFY_MAIL`: 是否发送工单创建等提醒邮件，需要 `Mailer` 被激活。
- `ENABLE_REVERSE_PROXY_AUTHENTICATION`: 允许反向代理认证，更多细节见：https://github.com/gogits/gogs/issues/165
- `ENABLE_REVERSE_PROXY_AUTO_REGISTRATION`: 允许通过反向认证做自动注册。
- `ENABLE_CAPTCHA`: 注册时使用图片验证码。
- `ENABLE_CAPTCHA`: **false**: 注册时使用图片验证码。
- `REQUIRE_CAPTCHA_FOR_LOGIN`: **false**: 登录时需要图片验证码。需要同时开启 `ENABLE_CAPTCHA`。
### Service - Expore (`service.explore`)

59
modules/context/captcha.go
View file

@ -5,9 +5,15 @@
package context
import (
"fmt"
"sync"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/hcaptcha"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/mcaptcha"
"code.gitea.io/gitea/modules/recaptcha"
"code.gitea.io/gitea/modules/setting"
"gitea.com/go-chi/captcha"
@ -28,3 +34,56 @@ func GetImageCaptcha() *captcha.Captcha {
})
return cpt
}
// SetCaptchaData sets common captcha data
func SetCaptchaData(ctx *Context) {
if !setting.Service.EnableCaptcha {
return
}
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
ctx.Data["Captcha"] = GetImageCaptcha()
ctx.Data["CaptchaType"] = setting.Service.CaptchaType
ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
ctx.Data["McaptchaSitekey"] = setting.Service.McaptchaSitekey
ctx.Data["McaptchaURL"] = setting.Service.McaptchaURL
}
const (
gRecaptchaResponseField = "g-recaptcha-response"
hCaptchaResponseField = "h-captcha-response"
mCaptchaResponseField = "m-captcha-response"
)
// VerifyCaptcha verifies Captcha data
// No-op if captchas are not enabled
func VerifyCaptcha(ctx *Context, tpl base.TplName, form interface{}) {
if !setting.Service.EnableCaptcha {
return
}
var valid bool
var err error
switch setting.Service.CaptchaType {
case setting.ImageCaptcha:
valid = GetImageCaptcha().VerifyReq(ctx.Req)
case setting.ReCaptcha:
valid, err = recaptcha.Verify(ctx, ctx.Req.Form.Get(gRecaptchaResponseField))
case setting.HCaptcha:
valid, err = hcaptcha.Verify(ctx, ctx.Req.Form.Get(hCaptchaResponseField))
case setting.MCaptcha:
valid, err = mcaptcha.Verify(ctx, ctx.Req.Form.Get(mCaptchaResponseField))
default:
ctx.ServerError("Unknown Captcha Type", fmt.Errorf("Unknown Captcha Type: %s", setting.Service.CaptchaType))
return
}
if err != nil {
log.Debug("%v", err)
}
if !valid {
ctx.Data["Err_Captcha"] = true
ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tpl, form)
}
}

2
modules/setting/service.go
View file

@ -40,6 +40,7 @@ var Service = struct {
EnableReverseProxyEmail bool
EnableReverseProxyFullName bool
EnableCaptcha bool
RequireCaptchaForLogin bool
RequireExternalRegistrationCaptcha bool
RequireExternalRegistrationPassword bool
CaptchaType string
@ -130,6 +131,7 @@ func newService() {
Service.EnableReverseProxyEmail = sec.Key("ENABLE_REVERSE_PROXY_EMAIL").MustBool()
Service.EnableReverseProxyFullName = sec.Key("ENABLE_REVERSE_PROXY_FULL_NAME").MustBool()
Service.EnableCaptcha = sec.Key("ENABLE_CAPTCHA").MustBool(false)
Service.RequireCaptchaForLogin = sec.Key("REQUIRE_CAPTCHA_FOR_LOGIN").MustBool(false)
Service.RequireExternalRegistrationCaptcha = sec.Key("REQUIRE_EXTERNAL_REGISTRATION_CAPTCHA").MustBool(Service.EnableCaptcha)
Service.RequireExternalRegistrationPassword = sec.Key("REQUIRE_EXTERNAL_REGISTRATION_PASSWORD").MustBool()
Service.CaptchaType = sec.Key("CAPTCHA_TYPE").MustString(ImageCaptcha)

63
routers/web/auth/auth.go
View file

@ -17,11 +17,8 @@ import (
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/eventsource"
"code.gitea.io/gitea/modules/hcaptcha"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/mcaptcha"
"code.gitea.io/gitea/modules/password"
"code.gitea.io/gitea/modules/recaptcha"
"code.gitea.io/gitea/modules/session"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
@ -163,6 +160,10 @@ func SignIn(ctx *context.Context) {
ctx.Data["PageIsLogin"] = true
ctx.Data["EnableSSPI"] = auth.IsSSPIEnabled()
if setting.Service.EnableCaptcha && setting.Service.RequireCaptchaForLogin {
context.SetCaptchaData(ctx)
}
ctx.HTML(http.StatusOK, tplSignIn)
}
@ -189,6 +190,16 @@ func SignInPost(ctx *context.Context) {
}
form := web.GetForm(ctx).(*forms.SignInForm)
if setting.Service.EnableCaptcha && setting.Service.RequireCaptchaForLogin {
context.SetCaptchaData(ctx)
context.VerifyCaptcha(ctx, tplSignIn, form)
if ctx.Written() {
return
}
}
u, source, err := auth_service.UserSignIn(form.UserName, form.Password)
if err != nil {
if user_model.IsErrUserNotExist(err) || user_model.IsErrEmailAddressNotExist(err) {
@ -383,14 +394,7 @@ func SignUp(ctx *context.Context) {
ctx.Data["SignUpLink"] = setting.AppSubURL + "/user/sign_up"
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
ctx.Data["Captcha"] = context.GetImageCaptcha()
ctx.Data["CaptchaType"] = setting.Service.CaptchaType
ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
ctx.Data["McaptchaSitekey"] = setting.Service.McaptchaSitekey
ctx.Data["McaptchaURL"] = setting.Service.McaptchaURL
context.SetCaptchaData(ctx)
ctx.Data["PageIsSignUp"] = true
// Show Disabled Registration message if DisableRegistration or AllowOnlyExternalRegistration options are true
@ -406,14 +410,7 @@ func SignUpPost(ctx *context.Context) {
ctx.Data["SignUpLink"] = setting.AppSubURL + "/user/sign_up"
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
ctx.Data["Captcha"] = context.GetImageCaptcha()
ctx.Data["CaptchaType"] = setting.Service.CaptchaType
ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
ctx.Data["McaptchaSitekey"] = setting.Service.McaptchaSitekey
ctx.Data["McaptchaURL"] = setting.Service.McaptchaURL
context.SetCaptchaData(ctx)
ctx.Data["PageIsSignUp"] = true
// Permission denied if DisableRegistration or AllowOnlyExternalRegistration options are true
@ -427,31 +424,9 @@ func SignUpPost(ctx *context.Context) {
return
}
if setting.Service.EnableCaptcha {
var valid bool
var err error
switch setting.Service.CaptchaType {
case setting.ImageCaptcha:
valid = context.GetImageCaptcha().VerifyReq(ctx.Req)
case setting.ReCaptcha:
valid, err = recaptcha.Verify(ctx, form.GRecaptchaResponse)
case setting.HCaptcha:
valid, err = hcaptcha.Verify(ctx, form.HcaptchaResponse)
case setting.MCaptcha:
valid, err = mcaptcha.Verify(ctx, form.McaptchaResponse)
default:
ctx.ServerError("Unknown Captcha Type", fmt.Errorf("Unknown Captcha Type: %s", setting.Service.CaptchaType))
return
}
if err != nil {
log.Debug("%s", err.Error())
}
if !valid {
ctx.Data["Err_Captcha"] = true
ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tplSignUp, &form)
return
}
context.VerifyCaptcha(ctx, tplSignUp, form)
if ctx.Written() {
return
}
if !form.IsEmailDomainAllowed() {

28
routers/web/auth/linkaccount.go
View file

@ -14,10 +14,6 @@ import (
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/hcaptcha"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/mcaptcha"
"code.gitea.io/gitea/modules/recaptcha"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web"
auth_service "code.gitea.io/gitea/services/auth"
@ -221,28 +217,8 @@ func LinkAccountPostRegister(ctx *context.Context) {
}
if setting.Service.EnableCaptcha && setting.Service.RequireExternalRegistrationCaptcha {
var valid bool
var err error
switch setting.Service.CaptchaType {
case setting.ImageCaptcha:
valid = context.GetImageCaptcha().VerifyReq(ctx.Req)
case setting.ReCaptcha:
valid, err = recaptcha.Verify(ctx, form.GRecaptchaResponse)
case setting.HCaptcha:
valid, err = hcaptcha.Verify(ctx, form.HcaptchaResponse)
case setting.MCaptcha:
valid, err = mcaptcha.Verify(ctx, form.McaptchaResponse)
default:
ctx.ServerError("Unknown Captcha Type", fmt.Errorf("Unknown Captcha Type: %s", setting.Service.CaptchaType))
return
}
if err != nil {
log.Debug("%s", err.Error())
}
if !valid {
ctx.Data["Err_Captcha"] = true
ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tplLinkAccount, &form)
context.VerifyCaptcha(ctx, tplLinkAccount, form)
if ctx.Written() {
return
}
}

49
routers/web/auth/openid.go
View file

@ -13,10 +13,7 @@ import (
"code.gitea.io/gitea/modules/auth/openid"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/hcaptcha"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/mcaptcha"
"code.gitea.io/gitea/modules/recaptcha"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
@ -357,14 +354,7 @@ func RegisterOpenIDPost(ctx *context.Context) {
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsOpenIDRegister"] = true
ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
ctx.Data["Captcha"] = context.GetImageCaptcha()
ctx.Data["CaptchaType"] = setting.Service.CaptchaType
ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
ctx.Data["HcaptchaSitekey"] = setting.Service.HcaptchaSitekey
ctx.Data["McaptchaSitekey"] = setting.Service.McaptchaSitekey
ctx.Data["McaptchaURL"] = setting.Service.McaptchaURL
context.SetCaptchaData(ctx)
ctx.Data["OpenID"] = oid
if setting.Service.AllowOnlyInternalRegistration {
@ -373,42 +363,11 @@ func RegisterOpenIDPost(ctx *context.Context) {
}
if setting.Service.EnableCaptcha {
var valid bool
var err error
switch setting.Service.CaptchaType {
case setting.ImageCaptcha:
valid = context.GetImageCaptcha().VerifyReq(ctx.Req)
case setting.ReCaptcha:
if err := ctx.Req.ParseForm(); err != nil {
ctx.ServerError("", err)
return
}
valid, err = recaptcha.Verify(ctx, form.GRecaptchaResponse)
case setting.HCaptcha:
if err := ctx.Req.ParseForm(); err != nil {
ctx.ServerError("", err)
return
}
valid, err = hcaptcha.Verify(ctx, form.HcaptchaResponse)
case setting.MCaptcha:
if err := ctx.Req.ParseForm(); err != nil {
ctx.ServerError("", err)
return
}
valid, err = mcaptcha.Verify(ctx, form.McaptchaResponse)
default:
ctx.ServerError("Unknown Captcha Type", fmt.Errorf("Unknown Captcha Type: %s", setting.Service.CaptchaType))
return
}
if err != nil {
log.Debug("%s", err.Error())
}
if !valid {
ctx.Data["Err_Captcha"] = true
ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tplSignUpOID, &form)
if err := ctx.Req.ParseForm(); err != nil {
ctx.ServerError("", err)
return
}
context.VerifyCaptcha(ctx, tplSignUpOID, form)
}
length := setting.MinPasswordLength

11
services/forms/user_form.go
View file

@ -91,13 +91,10 @@ func (f *InstallForm) Validate(req *http.Request, errs binding.Errors) binding.E
// RegisterForm form for registering
type RegisterForm struct {
UserName string `binding:"Required;Username;MaxSize(40)"`
Email string `binding:"Required;MaxSize(254)"`
Password string `binding:"MaxSize(255)"`
Retype string
GRecaptchaResponse string `form:"g-recaptcha-response"`
HcaptchaResponse string `form:"h-captcha-response"`
McaptchaResponse string `form:"m-captcha-response"`
UserName string `binding:"Required;Username;MaxSize(40)"`
Email string `binding:"Required;MaxSize(254)"`
Password string `binding:"MaxSize(255)"`
Retype string
}
// Validate validates the fields

7
services/forms/user_form_auth_openid.go
View file

@ -27,11 +27,8 @@ func (f *SignInOpenIDForm) Validate(req *http.Request, errs binding.Errors) bind
// SignUpOpenIDForm form for signin up with OpenID
type SignUpOpenIDForm struct {
UserName string `binding:"Required;Username;MaxSize(40)"`
Email string `binding:"Required;Email;MaxSize(254)"`
GRecaptchaResponse string `form:"g-recaptcha-response"`
HcaptchaResponse string `form:"h-captcha-response"`
McaptchaResponse string `form:"m-captcha-response"`
UserName string `binding:"Required;Username;MaxSize(40)"`
Email string `binding:"Required;Email;MaxSize(254)"`
}
// Validate validates the fields

24
templates/user/auth/captcha.tmpl Normal file
View file

@ -0,0 +1,24 @@
{{if .EnableCaptcha}}{{if eq .CaptchaType "image"}}
<div class="inline field">
<label>{{/* This is CAPTCHA field */}}</label>
{{.Captcha.CreateHTML}}
</div>
<div class="required inline field {{if .Err_Captcha}}error{{end}}">
<label for="captcha">{{.locale.Tr "captcha"}}</label>
<input id="captcha" name="captcha" value="{{.captcha}}" autocomplete="off">
</div>
{{else if eq .CaptchaType "recaptcha"}}
<div class="inline field required">
<div class="g-recaptcha" data-sitekey="{{.RecaptchaSitekey}}"></div>
</div>
{{else if eq .CaptchaType "hcaptcha"}}
<div class="inline field required">
<div class="h-captcha" data-sitekey="{{.HcaptchaSitekey}}"></div>
</div>
{{else if eq .CaptchaType "mcaptcha"}}
<div class="inline field df ac db-small captcha-field">
<span>{{.locale.Tr "captcha"}}</span>
<div class="border-secondary w-100-small" id="mcaptcha__widget-container" style="width: 50%; height: 5em"></div>
<div class="m-captcha" data-sitekey="{{.McaptchaSitekey}}" data-instance-url="{{.McaptchaURL}}"></div>
</div>
{{end}}{{end}}

2
templates/user/auth/signin_inner.tmpl
View file

@ -31,6 +31,8 @@
</div>
{{end}}
{{template "user/auth/captcha" .}}
<div class="inline field">
<label></label>
<button class="ui green button">

28
templates/user/auth/signup_inner.tmpl
View file

@ -34,34 +34,8 @@
<input id="retype" name="retype" type="password" value="{{.retype}}" autocomplete="new-password" required>
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "image")}}
<div class="inline field">
<label></label>
{{.Captcha.CreateHTML}}
</div>
<div class="required inline field {{if .Err_Captcha}}error{{end}}">
<label for="captcha">{{.locale.Tr "captcha"}}</label>
<input id="captcha" name="captcha" value="{{.captcha}}" autocomplete="off">
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "recaptcha")}}
<div class="inline field required">
<div class="g-recaptcha" data-sitekey="{{.RecaptchaSitekey}}"></div>
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "hcaptcha")}}
<div class="inline field required">
<div class="h-captcha" data-sitekey="{{.HcaptchaSitekey}}"></div>
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "mcaptcha")}}
<div class="inline field df ac db-small captcha-field">
<span>{{.locale.Tr "captcha"}}</span>
<div class="border-secondary w-100-small" id="mcaptcha__widget-container" style="width: 50%; height: 5em"></div>
<div class="m-captcha" data-sitekey="{{.McaptchaSitekey}}" data-instance-url="{{.McaptchaURL}}"></div>
</div>
{{end}}
{{template "user/auth/captcha" .}}
<div class="inline field">
<label></label>

28
templates/user/auth/signup_openid_register.tmpl
View file

@ -20,31 +20,9 @@
<label for="email">{{.locale.Tr "email"}}</label>
<input id="email" name="email" type="email" value="{{.email}}" required>
</div>
{{if and .EnableCaptcha (eq .CaptchaType "image")}}
<div class="inline field">
<label></label>
{{.Captcha.CreateHTML}}
</div>
<div class="required inline field {{if .Err_Captcha}}error{{end}}">
<label for="captcha">{{.locale.Tr "captcha"}}</label>
<input id="captcha" name="captcha" value="{{.captcha}}" autocomplete="off">
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "recaptcha")}}
<div class="inline field required">
<div class="g-recaptcha" data-sitekey="{{.RecaptchaSitekey}}"></div>
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "hcaptcha")}}
<div class="inline field required">
<div class="h-captcha" data-sitekey="{{.HcaptchaSitekey}}"></div>
</div>
{{end}}
{{if and .EnableCaptcha (eq .CaptchaType "mcaptcha")}}
<div class="inline field required">
<div class="m-captcha" data-sitekey="{{.McaptchaSitekey}}" data-instance-url="{{.McaptchaURL}}"></div>
</div>
{{end}}
{{template "user/auth/captcha" .}}
<div class="inline field">
<label for="openid">OpenID URI</label>
<input id="openid" value="{{.OpenID}}" readonly>