From b8b32773b6d12b7f2f8804f7e18548fffc4a8456 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Wed, 5 Jul 2023 15:02:03 +0200
Subject: [PATCH] add bot check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Jörg Thalheim <joerg@thalheim.io>
---
 routers/web/auth/auth.go              | 5 +++++
 services/forms/user_form.go           | 1 +
 templates/user/auth/signup_inner.tmpl | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/routers/web/auth/auth.go b/routers/web/auth/auth.go
index 3bf133f56..1c37dca09 100644
--- a/routers/web/auth/auth.go
+++ b/routers/web/auth/auth.go
@@ -411,6 +411,11 @@ func SignUpPost(ctx *context.Context) {
 	context.SetCaptchaData(ctx)
 	ctx.Data["PageIsSignUp"] = true
 
+	if strings.ToLower(form.Notabot) != "clan" {
+		ctx.Error(http.StatusForbidden)
+		return
+	}
+
 	// Permission denied if DisableRegistration or AllowOnlyExternalRegistration options are true
 	if setting.Service.DisableRegistration || setting.Service.AllowOnlyExternalRegistration {
 		ctx.Error(http.StatusForbidden)
diff --git a/services/forms/user_form.go b/services/forms/user_form.go
index 1f5abf94e..196300a14 100644
--- a/services/forms/user_form.go
+++ b/services/forms/user_form.go
@@ -94,6 +94,7 @@ type RegisterForm struct {
 	UserName string `binding:"Required;Username;MaxSize(40)"`
 	Email    string `binding:"Required;MaxSize(254)"`
 	Password string `binding:"MaxSize(255)"`
+	Notabot  string `binding:"Required"`
 	Retype   string
 }
 
diff --git a/templates/user/auth/signup_inner.tmpl b/templates/user/auth/signup_inner.tmpl
index 8dfcb7b7d..3e5ced297 100644
--- a/templates/user/auth/signup_inner.tmpl
+++ b/templates/user/auth/signup_inner.tmpl
@@ -24,6 +24,11 @@
 					<input id="email" name="email" type="email" value="{{.email}}" required>
 				</div>
 
+				<div class="required inline field">
+					<input type="text" id="notabot" name="notabot" required>
+					<label for="notabot">Enter name of the project to prove you are not a bot</label><br>
+				</div>
+
 				{{if not .DisablePassword}}
 					<div class="required inline field {{if and (.Err_Password) (or (not .LinkAccountMode) (and .LinkAccountMode .LinkAccountModeRegister))}}error{{end}}">
 						<label for="password">{{.locale.Tr "password"}}</label>
-- 
2.41.0