db: add tests for two factors (#6099)

* Rename to TwoFactors.Create

* Use GORM to execute queries

* TwoFactor.GetByUserID

* Add tests

* Fix failing tests

* Add MD5 tests

* Add tests for RandomChars

1 files changed, 22 insertions, 0 deletions

diff --git a/internal/cryptoutil/md5.go b/internal/cryptoutil/md5.go
new file mode 100644
index 00000000..249f3ed5
--- /dev/null
+++ b/internal/cryptoutil/md5.go
@@ -0,0 +1,22 @@
+// Copyright 2020 The Gogs 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 cryptoutil
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+)
+
+// MD5 encodes string to hexadecimal of MD5 checksum.
+func MD5(str string) string {
+	return hex.EncodeToString(MD5Bytes(str))
+}
+
+// MD5Bytes encodes string to MD5 checksum.
+func MD5Bytes(str string) []byte {
+	m := md5.New()
+	_, _ = m.Write([]byte(str))
+	return m.Sum(nil)
+}