1 files changed, 43 insertions, 0 deletions
diff --git a/users/main.go b/users/main.go
new file mode 100644
index 0000000..edb306f
--- /dev/null
+++ b/users/main.go
@@ -0,0 +1,43 @@
+package users
+
+import (
+	"fmt"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type SiteUser struct {
+	Username     string `yaml:"username"`
+	PasswordHash string `yaml:"password-hash"`
+	Password     string `yaml:"password"`
+}
+
+func (su *SiteUser) SetPasswordHashIfNecessary() error {
+	if su.Password == "" {
+		return nil
+	}
+
+	res, err := bcrypt.GenerateFromPassword([]byte(su.Password), bcrypt.DefaultCost)
+	if err != nil {
+		return fmt.Errorf("SetPasswordHashIfNecessary: %w", err)
+	}
+
+	su.Password = ""
+	su.PasswordHash = string(res)
+
+	return nil
+}
+
+func (su *SiteUser) CheckPassword(pass string) error {
+	err := su.SetPasswordHashIfNecessary()
+	if err != nil {
+		return err
+	}
+
+	err = bcrypt.CompareHashAndPassword([]byte(su.PasswordHash), []byte(pass))
+	if err != nil {
+		return fmt.Errorf("CheckPassword: %w", err)
+	}
+
+	return nil
+}