v0.0.581

langext/base64.go

@@ -0,0 +1,24 @@
+package langext
+
+import (
+	"encoding/base64"
+	"strings"
+)
+
+// DecodeBase64Any decodes a base64 encoded string
+// Works with all variants (std, url, imap), padded and unpadded and even ignores linrebreaks and indents
+func DecodeBase64Any(data string) ([]byte, error) {
+
+	data = strings.ReplaceAll(data, "\n", "") // remove linebreaks and indents
+	data = strings.ReplaceAll(data, "\t", "") // remove linebreaks and indents
+	data = strings.ReplaceAll(data, " ", "")  // remove linebreaks and indents
+
+	data = strings.ReplaceAll(data, ",", "/") // base64_imap --> base64_std
+
+	data = strings.ReplaceAll(data, "_", "/") // base64_url --> base64_std
+	data = strings.ReplaceAll(data, "-", "+") // base64_url --> base64_std
+
+	data = strings.ReplaceAll(data, "=", " ") // no padding
+
+	return base64.RawStdEncoding.DecodeString(data)
+}