From 365b5753419238bb96bc3f9b744d380ff20cbafc Mon Sep 17 00:00:00 2001
From: tobi <31960611+tsmethurst@users.noreply.github.com>
Date: Mon, 7 Apr 2025 16:14:41 +0200
Subject: [feature] add TOTP two-factor authentication (2FA) (#3960)

* [feature] add TOTP two-factor authentication (2FA)

* use byteutil.S2B to avoid allocations when comparing + generating password hashes

* don't bother with string conversion  for consts

* use io.ReadFull

* use MustGenerateSecret for backup codes

* rename util functions
---
 vendor/github.com/pquerna/otp/internal/encode.go | 35 ++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 vendor/github.com/pquerna/otp/internal/encode.go

(limited to 'vendor/github.com/pquerna/otp/internal/encode.go')

diff --git a/vendor/github.com/pquerna/otp/internal/encode.go b/vendor/github.com/pquerna/otp/internal/encode.go
new file mode 100644
index 000000000..2af3c8bc0
--- /dev/null
+++ b/vendor/github.com/pquerna/otp/internal/encode.go
@@ -0,0 +1,35 @@
+package internal
+
+import (
+	"net/url"
+	"sort"
+	"strings"
+)
+
+// EncodeQuery is a copy-paste of url.Values.Encode, except it uses %20 instead
+// of + to encode spaces. This is necessary to correctly render spaces in some
+// authenticator apps, like Google Authenticator.
+func EncodeQuery(v url.Values) string {
+	if v == nil {
+		return ""
+	}
+	var buf strings.Builder
+	keys := make([]string, 0, len(v))
+	for k := range v {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	for _, k := range keys {
+		vs := v[k]
+		keyEscaped := url.PathEscape(k) // changed from url.QueryEscape
+		for _, v := range vs {
+			if buf.Len() > 0 {
+				buf.WriteByte('&')
+			}
+			buf.WriteString(keyEscaped)
+			buf.WriteByte('=')
+			buf.WriteString(url.PathEscape(v)) // changed from url.QueryEscape
+		}
+	}
+	return buf.String()
+}
-- 
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