Initial commit

internal/auth/repositories/pam_repository.go

@@ -0,0 +1,31 @@
+package repositories
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/msteinert/pam"
+)
+
+type PamRepository struct{}
+
+func NewPamRepository() *PamRepository {
+	return &PamRepository{}
+}
+
+func (pr *PamRepository) IsValidUser(user, password string) bool {
+	tx, err := pam.StartFunc("virteen", user, func(s pam.Style, msg string) (string, error) {
+		return password, nil
+	})
+	if err != nil {
+		panic("failed to start PAM transaction")
+	}
+
+	err = tx.Authenticate(pam.Silent)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "authenticate: %s\n", err.Error())
+		return false
+	}
+
+	return true
+}