first key exchange thing

internal/game/user.go

@@ -2,22 +2,18 @@ package game
 
 import (
 	"crypto/ed25519"
-	"crypto/rand"
 )
 
 type User struct {
-	Name       string
-	PublicKey  ed25519.PublicKey
-	PrivateKey ed25519.PrivateKey
+	Name      string
+	PublicKey ed25519.PublicKey
 }
 
-func NewUser(name string) User {
+func NewUser(name string, publicKey ed25519.PublicKey) User {
 	// ed25519
 
-	public, private, _ := ed25519.GenerateKey(rand.Reader)
 	return User{
-		Name:       name,
-		PublicKey:  public,
-		PrivateKey: private,
+		Name:      name,
+		PublicKey: publicKey,
 	}
 }

internal/rest_handler/create_user.go

@@ -1,6 +1,7 @@
 package rest_handler
 
 import (
+	"encoding/base64"
 	"net/http"
 
 	"gitea.elara.ws/Hazel/hangman/internal/game"
@@ -11,7 +12,8 @@ func CreateUser(c echo.Context) error {
 	session := game.GetSession(c.Param("session"))
 
 	type BodyContent struct {
-		Name string
+		Name      string
+		PublicKey string
 	}
 	var bodyContent BodyContent
 
@@ -20,7 +22,9 @@ func CreateUser(c echo.Context) error {
 		return c.String(http.StatusBadRequest, err.Error())
 	}
 
-	user := game.NewUser(bodyContent.Name)
+	pub, _ := base64.StdEncoding.DecodeString(bodyContent.PublicKey)
+	user := game.NewUser(bodyContent.Name, pub)
 	session.AddUser(user)
+
 	return c.JSON(http.StatusOK, user)
 }