♻️ refactor: added csrf token utils #9

utils/converters.go

@@ -0,0 +1,16 @@
+package utils
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+// Convert bytes to buffer helper
+func Convert2BytesBuffer(i interface{}) (*bytes.Buffer, error) {
+	buf := new(bytes.Buffer)
+	err := json.NewEncoder(buf).Encode(i)
+	if err != nil {
+		return buf, err
+	}
+	return buf, nil
+}

utils/csrf.go

@@ -0,0 +1,25 @@
+package utils
+
+import (
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+	"io"
+)
+
+// Create CSRF token
+func CreateCSRFToken(sid, salt string) (string, error) {
+	hash := sha256.New()
+	_, err := io.WriteString(hash, fmt.Sprintf("%s%s", salt, sid))
+	if err != nil {
+		return "", err
+	}
+	token := base64.RawStdEncoding.EncodeToString(hash.Sum(nil))
+	return token, nil
+}
+
+// Validate CSRF token
+func VerifyCSRFToken(token string, sid, salt string) bool {
+	t, _ := CreateCSRFToken(sid, salt)
+	return token == t
+}