Allow Recaptcha service url to be configured (#6820)

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

@@ -214,6 +214,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
 - `CAPTCHA_TYPE`: **image**: \[image, recaptcha\]
 - `RECAPTCHA_SECRET`: **""**: Go to https://www.google.com/recaptcha/admin to get a secret for recaptcha.
 - `RECAPTCHA_SITEKEY`: **""**: Go to https://www.google.com/recaptcha/admin to get a sitekey for recaptcha.
+- `RECAPTCHA_URL`: **https://www.google.com/recaptcha/**: Set the recaptcha url - allows the use of recaptcha net.
 - `DEFAULT_ENABLE_DEPENDENCIES`: **true**: Enable this to have dependencies enabled by default.
 - `ENABLE_USER_HEATMAP`: **true**: Enable this to display the heatmap on users profiles.
 - `EMAIL_DOMAIN_WHITELIST`: **\<empty\>**: If non-empty, list of domain names that can only be used to register

modules/recaptcha/recaptcha.go

@@ -13,6 +13,7 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
 )
 
 // Response is the structure of JSON returned from API
@@ -23,11 +24,11 @@ type Response struct {
 	ErrorCodes  []string  `json:"error-codes"`
 }
 
-const apiURL = "https://www.google.com/recaptcha/api/siteverify"
+const apiURL = "/api/siteverify"
 
 // Verify calls Google Recaptcha API to verify token
 func Verify(response string) (bool, error) {
-	resp, err := http.PostForm(apiURL,
+	resp, err := http.PostForm(util.URLJoin(setting.Service.RecaptchaURL, apiURL),
 		url.Values{"secret": {setting.Service.RecaptchaSecret}, "response": {response}})
 	if err != nil {
 		return false, fmt.Errorf("Failed to send CAPTCHA response: %s", err)

modules/setting/service.go

@@ -30,6 +30,7 @@ var Service struct {
 	CaptchaType                             string
 	RecaptchaSecret                         string
 	RecaptchaSitekey                        string
+	RecaptchaURL                            string
 	DefaultKeepEmailPrivate                 bool
 	DefaultAllowCreateOrganization          bool
 	EnableTimetracking                      bool
@@ -63,6 +64,7 @@ func newService() {
 	Service.CaptchaType = sec.Key("CAPTCHA_TYPE").MustString(ImageCaptcha)
 	Service.RecaptchaSecret = sec.Key("RECAPTCHA_SECRET").MustString("")
 	Service.RecaptchaSitekey = sec.Key("RECAPTCHA_SITEKEY").MustString("")
+	Service.RecaptchaURL = sec.Key("RECAPTCHA_URL").MustString("https://www.google.com/recaptcha/")
 	Service.DefaultKeepEmailPrivate = sec.Key("DEFAULT_KEEP_EMAIL_PRIVATE").MustBool()
 	Service.DefaultAllowCreateOrganization = sec.Key("DEFAULT_ALLOW_CREATE_ORGANIZATION").MustBool(true)
 	Service.EnableTimetracking = sec.Key("ENABLE_TIMETRACKING").MustBool(true)

modules/templates/helper.go

@@ -20,6 +20,8 @@ import (
 	"strings"
 	"time"
 
+	"code.gitea.io/gitea/modules/util"
+
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/log"
@@ -115,6 +117,8 @@ func NewFuncMap() []template.FuncMap {
 		"EscapePound": func(str string) string {
 			return strings.NewReplacer("%", "%25", "#", "%23", " ", "%20", "?", "%3F").Replace(str)
 		},
+		"PathEscapeSegments":       util.PathEscapeSegments,
+		"URLJoin":                  util.URLJoin,
 		"RenderCommitMessage":      RenderCommitMessage,
 		"RenderCommitMessageLink":  RenderCommitMessageLink,
 		"RenderCommitBody":         RenderCommitBody,

routers/user/auth.go

@@ -662,6 +662,7 @@ func LinkAccount(ctx *context.Context) {
 	ctx.Data["LinkAccountMode"] = true
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
 	ctx.Data["ShowRegistrationButton"] = false
@@ -710,6 +711,7 @@ func LinkAccountPostSignIn(ctx *context.Context, signInForm auth.SignInForm) {
 	ctx.Data["LinkAccountMode"] = true
 	ctx.Data["LinkAccountModeSignIn"] = true
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
@@ -778,6 +780,7 @@ func LinkAccountPostRegister(ctx *context.Context, cpt *captcha.Captcha, form au
 	ctx.Data["LinkAccountMode"] = true
 	ctx.Data["LinkAccountModeRegister"] = true
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 	ctx.Data["DisableRegistration"] = setting.Service.DisableRegistration
@@ -918,7 +921,7 @@ 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["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 
@@ -934,7 +937,7 @@ func SignUpPost(ctx *context.Context, cpt *captcha.Captcha, form auth.RegisterFo
 	ctx.Data["SignUpLink"] = setting.AppSubURL + "/user/sign_up"
 
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
-
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 

routers/user/auth_openid.go

@@ -312,6 +312,7 @@ func RegisterOpenID(ctx *context.Context) {
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["OpenID"] = oid
 	userName, _ := ctx.Session.Get("openid_determined_username").(string)
 	if userName != "" {
@@ -337,6 +338,7 @@ func RegisterOpenIDPost(ctx *context.Context, cpt *captcha.Captcha, form auth.Si
 	ctx.Data["PageIsOpenIDRegister"] = true
 	ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
 	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
+	ctx.Data["RecaptchaURL"] = setting.Service.RecaptchaURL
 	ctx.Data["CaptchaType"] = setting.Service.CaptchaType
 	ctx.Data["RecaptchaSitekey"] = setting.Service.RecaptchaSitekey
 	ctx.Data["OpenID"] = oid

templates/base/footer.tmpl

@@ -46,7 +46,7 @@
 {{end}}
 {{if .EnableCaptcha}}
 	{{if eq .CaptchaType "recaptcha"}}
-		<script src="https://www.google.com/recaptcha/api.js" async></script>
+		<script src='{{ URLJoin .RecaptchaURL "api.js"}}' async></script>
 	{{end}}
 {{end}}
 {{if .RequireTribute}}