From ce39432a07ee74723b611fc3060357f0782cd783 Mon Sep 17 00:00:00 2001
From: Quentin Dufour <quentin@deuxfleurs.fr>
Date: Tue, 19 Jul 2022 17:18:14 +0200
Subject: [PATCH] Try to fix SSHA conversion

---
 ssha.go      | 14 +++++++++++++-
 ssha_test.go | 17 +++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 ssha_test.go

diff --git a/ssha.go b/ssha.go
index 202ce12..cca51c7 100644
--- a/ssha.go
+++ b/ssha.go
@@ -2,6 +2,8 @@ package main
 
 import (
 	"errors"
+	"regexp"
+	"strings"
 
 	"github.com/jsimonetti/pwscheme/ssha"
 	"github.com/jsimonetti/pwscheme/ssha256"
@@ -14,6 +16,8 @@ const (
 	SSHA512 = "{SSHA512}"
 )
 
+var scheme = regexp.MustCompile(`^{([0-9a-zA-Z]+)}`)
+
 // Encode encodes the string to ssha512
 func SSHAEncode(rawPassPhrase string) (string, error) {
 	return ssha512.Generate(rawPassPhrase, 16)
@@ -21,7 +25,9 @@ func SSHAEncode(rawPassPhrase string) (string, error) {
 
 // Matches matches the encoded password and the raw password
 func SSHAMatches(encodedPassPhrase string, rawPassPhrase string) (bool, error) {
-	hashType, err := determineHashType(encodedPassPhrase)
+	cleanEncodedPass := uppercaseScheme(encodedPassPhrase)
+
+	hashType, err := determineHashType(cleanEncodedPass)
 	if err != nil {
 		return false, errors.New("invalid password hash stored")
 	}
@@ -51,3 +57,9 @@ func determineHashType(hash string) (string, error) {
 
 	return "", errors.New("no valid hash found")
 }
+
+func uppercaseScheme(hash string) string {
+	return scheme.ReplaceAllStringFunc(hash, func(w string) string {
+		return strings.ToUpper(w)
+	})
+}
diff --git a/ssha_test.go b/ssha_test.go
new file mode 100644
index 0000000..7620436
--- /dev/null
+++ b/ssha_test.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestUpper(t *testing.T) {
+	r1 := uppercaseScheme("{ssha}ss4654654")
+	if r1 != "{SSHA}ss4654654" {
+		t.Fatal(r1)
+	}
+
+	r2 := uppercaseScheme("{ssha512}fdbgf6546")
+	if r2 != "{SSHA512}fdbgf6546" {
+		t.Fatal(r2)
+	}
+}