htpasswd: implement routines for working with .htpasswd

Signed-off-by: Nagy Károly Gábriel <k@jpi.io>

htpasswd/htpasswd.go

@@ -153,15 +153,15 @@ func VerifyUser(file, user, passwd string) error {
 
 // Verify will check if the given user and password are matching
 // with the given Passwd object content
-func (pp Passwds) Verify(user, passwd string) error {
-	if _, ok := pp[user]; !ok {
+func (pp *Passwds) Verify(user, passwd string) error {
+	if _, ok := (*pp)[user]; !ok {
 		return fmt.Errorf("user %s does not exist", user)
 	}
-	alg, err := identifyHash(pp[user])
+	alg, err := identifyHash((*pp)[user])
 	if err != nil {
 		return fmt.Errorf("cannot identify algo %v", alg)
 	}
-	return verifyPass(passwd, pp[user], alg)
+	return verifyPass(passwd, (*pp)[user], alg)
 }
 
 func verifyPass(pass, hash string, alg HashAlgorithm) error {
@@ -235,9 +235,9 @@ func verifySSHA(password, hashedPassword string) error {
 
 	return nil
 }
-func (pp Passwds) toByte() []byte {
+func (pp *Passwds) toByte() []byte {
 	pass := []byte{}
-	for name, hash := range pp {
+	for name, hash := range *pp {
 		pass = append(pass, []byte(name+":"+hash+"\n")...)
 	}
 	return pass