Implement multi-account edit

1 files changed, 22 insertions, 4 deletions

diff --git a/hotline/account.go b/hotline/account.go
index 7368592..3da818f 100644
--- a/hotline/account.go
+++ b/hotline/account.go
@@ -1,7 +1,9 @@
 package hotline
 
 import (
+	"encoding/binary"
 	"github.com/jhalter/mobius/concat"
+	"golang.org/x/crypto/bcrypt"
 )
 
 const GuestAccount = "guest" // default account used when no login is provided for a connection
@@ -15,10 +17,26 @@ type Account struct {
 
 // MarshalBinary marshals an Account to byte slice
 func (a *Account) MarshalBinary() (out []byte) {
+	fields := []Field{
+		NewField(fieldUserName, []byte(a.Name)),
+		NewField(fieldUserLogin, negateString([]byte(a.Login))),
+		NewField(fieldUserAccess, *a.Access),
+	}
+
+	if bcrypt.CompareHashAndPassword([]byte(a.Password), []byte("")) != nil {
+		fields = append(fields, NewField(fieldUserPassword, []byte("x")))
+	}
+
+	fieldCount := make([]byte, 2)
+	binary.BigEndian.PutUint16(fieldCount, uint16(len(fields)))
+
+	var fieldPayload []byte
+	for _, field := range fields {
+		fieldPayload = append(fieldPayload, field.Payload()...)
+	}
+
 	return concat.Slices(
-		[]byte{0x00, 0x3}, // param count -- always 3
-		NewField(fieldUserName, []byte(a.Name)).Payload(),
-		NewField(fieldUserLogin, negateString([]byte(a.Login))).Payload(),
-		NewField(fieldUserAccess, *a.Access).Payload(),
+		fieldCount,
+		fieldPayload,
 	)
 }