split into daemon and cli interface

crypto/crypto.go

@@ -1,11 +1,14 @@
 package crypto
 
 import (
+	"math/rand"
 	"encoding/json"
 
 	"github.com/google/uuid"
 )
 
+const DEFAULT_LENGTH int  = 25
+
 type Password struct {
 	Service string `json:"Service"`
 	Url string `json:"Url"`
@@ -21,7 +24,7 @@ func (p *Password) ToJson() ([]byte, error) {
 
 func GetPasswordFromJson(b []byte) (Password, error) {
 	var result Password
-	err := json.Unmarshal(b, result)
+	err := json.Unmarshal(b, &result)
 
 	if err != nil {
 		return Password{}, err
@@ -30,9 +33,20 @@ func GetPasswordFromJson(b []byte) (Password, error) {
 	return result, nil
 }
 
-func NewPassword() *Password {
+func NewPassword(length int) *Password {
 	return &Password{
 		Id: uuid.New(), 
+		Password: GenerateRandomString(length),
 	}
 }
 
+func GenerateRandomString(length int) string {
+	charset := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)
+}
+
+