X-Git-Url: http://www.git.cypherpunks.ru/?p=gocheese.git;a=blobdiff_plain;f=passwd.go;h=f6760d2910091bdcbefc301d2d85f29ae471512e;hp=852192f8b7ea898cb54d7ea3a4e912f884e13bc9;hb=b036ee436eb9bd8889734232a22d3f24be5c9ee2;hpb=b144ad5b2dd5d62dd14909afd6696b3137bdf0db

diff --git a/passwd.go b/passwd.go
index 852192f..f6760d2 100644
--- a/passwd.go
+++ b/passwd.go
@@ -19,13 +19,43 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 package main
 
 import (
+	"errors"
 	"io/ioutil"
 	"log"
+	"os"
 	"strings"
 )
 
+var passwords map[string]Auther = make(map[string]Auther)
+
+type Auther interface {
+	Auth(password string) bool
+}
+
+func strToAuther(verifier string) (string, Auther, error) {
+	st := strings.SplitN(verifier, "$", 3)
+	if len(st) != 3 || st[0] != "" {
+		return "", nil, errors.New("invalid verifier structure")
+	}
+	algorithm := st[1]
+	var auther Auther
+	var err error
+	switch algorithm {
+	case "argon2i":
+		auther, err = parseArgon2i(st[2])
+	case "sha256":
+		auther, err = parseSHA256(st[2])
+	default:
+		err = errors.New("unknown hashing algorithm")
+	}
+	return algorithm, auther, err
+}
+
 func refreshPasswd() {
 	passwd, err := ioutil.ReadFile(*passwdPath)
+	if os.IsNotExist(err) {
+		return
+	}
 	if err != nil {
 		log.Fatal(err)
 	}