From 97ee88975a43b8d69bd2abfcce0af10fadc172fa Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@kbt.io>
Date: Fri, 17 Mar 2017 17:40:39 +0100
Subject: [PATCH] Add captcha support to OpenID based signup

---
 routers/user/auth_openid.go                     |  9 +++++----
 templates/user/auth/signup_openid_register.tmpl | 10 ++++++++++
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/routers/user/auth_openid.go b/routers/user/auth_openid.go
index ebcfa76652..19c1548399 100644
--- a/routers/user/auth_openid.go
+++ b/routers/user/auth_openid.go
@@ -15,6 +15,8 @@ import (
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/go-macaron/captcha"
 )
 
 const (
@@ -310,6 +312,7 @@ func RegisterOpenID(ctx *context.Context) {
 	ctx.Data["PageIsSignIn"] = true
 	ctx.Data["PageIsOpenIDRegister"] = true
 	ctx.Data["EnableOpenIDSignUp"] = setting.EnableOpenIDSignUp
+	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
 	ctx.Data["OpenID"] = oid
 	userName, _ := ctx.Session.Get("openid_determined_username").(string)
 	if userName != "" {
@@ -323,7 +326,7 @@ func RegisterOpenID(ctx *context.Context) {
 }
 
 // RegisterOpenIDPost handles submission of a form to create a new user authenticated via an OpenID URI
-func RegisterOpenIDPost(ctx *context.Context, form auth.SignUpOpenIDForm) {
+func RegisterOpenIDPost(ctx *context.Context, cpt *captcha.Captcha, form auth.SignUpOpenIDForm) {
 	if ! setting.EnableOpenIDSignUp {
 		ctx.Error(403)
 		return
@@ -338,16 +341,14 @@ func RegisterOpenIDPost(ctx *context.Context, form auth.SignUpOpenIDForm) {
 	ctx.Data["PageIsSignIn"] = true
 	ctx.Data["PageIsOpenIDRegister"] = true
 	ctx.Data["EnableOpenIDSignUp"] = setting.EnableOpenIDSignUp
+	ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
 	ctx.Data["OpenID"] = oid
 
-/*
-	// TODO: handle captcha ?
 	if setting.Service.EnableCaptcha && !cpt.VerifyReq(ctx.Req) {
 		ctx.Data["Err_Captcha"] = true
 		ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tplSignUpOID, &form)
 		return
 	}
-*/
 
 	len := setting.MinPasswordLength
 	if len < 256 { len = 256 }
diff --git a/templates/user/auth/signup_openid_register.tmpl b/templates/user/auth/signup_openid_register.tmpl
index 2aaa3364e1..741ffdf3b5 100644
--- a/templates/user/auth/signup_openid_register.tmpl
+++ b/templates/user/auth/signup_openid_register.tmpl
@@ -20,6 +20,16 @@
 						<label for="email">{{.i18n.Tr "email"}}</label>
 						<input id="email" name="email" type="email" value="{{.email}}" required>
 					</div>
+					{{if .EnableCaptcha}}
+						<div class="inline field">
+							<label></label>
+							{{.Captcha.CreateHtml}}
+						</div>
+						<div class="required inline field {{if .Err_Captcha}}error{{end}}">
+							<label for="captcha">{{.i18n.Tr "captcha"}}</label>
+							<input id="captcha" name="captcha" value="{{.captcha}}" autocomplete="off">
+						</div>
+					{{end}}
 					<div class="inline field">
 						<label for="openid">OpenID URI</label>
 						<input id="openid" value="{{ .OpenID }}" readonly>