1 files changed, 26 insertions, 0 deletions
diff --git a/modules/context/captcha.go b/modules/context/captcha.go
new file mode 100644
index 0000000000..956380ed73
--- /dev/null
+++ b/modules/context/captcha.go
@@ -0,0 +1,26 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package context
+
+import (
+	"sync"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"gitea.com/go-chi/captcha"
+)
+
+var imageCaptchaOnce sync.Once
+var cpt *captcha.Captcha
+
+// GetImageCaptcha returns global image captcha
+func GetImageCaptcha() *captcha.Captcha {
+	imageCaptchaOnce.Do(func() {
+		cpt = captcha.NewCaptcha(captcha.Options{
+			SubURL: setting.AppSubURL,
+		})
+	})
+	return cpt
+}