Initial cloud-services repo - gateway service + pkg modules

pkg/logger/mask.go

@@ -0,0 +1,30 @@
+package logger
+
+import (
+	"regexp"
+	"strings"
+)
+
+// MaskEmail removes all identifying chars except first from email username
+func MaskEmail(s string) string {
+	tmp := strings.Split(s, "@")
+	addr := tmp[0]
+	domain := tmp[1]
+	if len(addr) <= 0 || len(domain) <= 0 {
+		return ""
+	}
+
+	addr = addr[:1] + strings.Repeat("*", len(addr)-1)
+	return addr + "@" + domain
+}
+
+// MaskPassword replaces all characters
+func MaskPassword(s string) string {
+	return strings.Repeat("*", len(s))
+}
+
+// MaskPhoneNumber replaces all nums except first from number string
+func MaskPhoneNumber(s string) string {
+	m := regexp.MustCompile(`\B\d`)
+	return m.ReplaceAllString(s, "*")
+}