support captcha

providers/captcha/driver/digit.go

@@ -0,0 +1,26 @@
+package storage
+
+import (
+	"atom/container"
+	"atom/providers/config"
+	"log"
+
+	"github.com/mojocn/base64Captcha"
+)
+
+func init() {
+	if err := container.Container.Provide(NewCaptchaDriverDigit); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func NewCaptchaDriverDigit(conf *config.Config) (base64Captcha.Driver, error) {
+	// 字符,公式,验证码配置
+	// 生成默认数字的driver
+	return base64Captcha.NewDriverDigit(
+		int(conf.Captcha.ImgHeight),
+		int(conf.Captcha.ImgWidth),
+		int(conf.Captcha.KeyLong),
+		0.7,
+		80), nil
+}