From 9e23bb67774007a52f304e368ca2d3847ed09d62 Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmx.de>
Date: Fri, 22 Dec 2023 09:37:31 +0100
Subject: [PATCH] Smart: simplify UpdateSession

---
 vehicle/smart/hello/api.go      |  3 +-
 vehicle/smart/hello/helper.go   |  8 ++---
 vehicle/smart/hello/identity.go | 53 +--------------------------------
 3 files changed, 6 insertions(+), 58 deletions(-)

diff --git a/vehicle/smart/hello/api.go b/vehicle/smart/hello/api.go
index a76e16816..1a1d2a763 100644
--- a/vehicle/smart/hello/api.go
+++ b/vehicle/smart/hello/api.go
@@ -156,8 +156,7 @@ func (v *API) UpdateSession(vin string) error {
 }
 
 func (v *API) Status(vin string) (VehicleStatus, error) {
-	if _, err := v.identity.UpdateSession(vin); err != nil {
-		// if err := v.UpdateSession(vin); err != nil {
+	if err := v.UpdateSession(vin); err != nil {
 		return VehicleStatus{}, fmt.Errorf("update session failed: %w", err)
 	}
 
diff --git a/vehicle/smart/hello/helper.go b/vehicle/smart/hello/helper.go
index c9ee01b18..cf82541fd 100644
--- a/vehicle/smart/hello/helper.go
+++ b/vehicle/smart/hello/helper.go
@@ -5,8 +5,8 @@ import (
 	"crypto/md5"
 	"crypto/sha1"
 	"encoding/base64"
-	"encoding/json"
 	"fmt"
+	"io"
 	"net/url"
 	"strconv"
 	"time"
@@ -14,13 +14,13 @@ import (
 	"github.com/samber/lo"
 )
 
-func createSignature(method, path string, params url.Values, post any) (string, string, string, error) {
+func createSignature(method, path string, params url.Values, body io.Reader) (string, string, string, error) {
 	nonce := lo.RandomString(16, lo.AlphanumericCharset)
 	ts := strconv.FormatInt(time.Now().UnixMilli(), 10)
 
 	md5Hash := "1B2M2Y8AsgTpgAmY7PhCfg=="
-	if post != nil {
-		bytes, err := json.Marshal(post)
+	if body != nil {
+		bytes, err := io.ReadAll(body)
 		if err != nil {
 			return "", "", "", err
 		}
diff --git a/vehicle/smart/hello/identity.go b/vehicle/smart/hello/identity.go
index 854c0edef..80616a440 100644
--- a/vehicle/smart/hello/identity.go
+++ b/vehicle/smart/hello/identity.go
@@ -173,7 +173,7 @@ func (v *Identity) appToken(token *oauth2.Token) (*oauth2.Token, string, error)
 	}
 
 	path := "/auth/account/session/secure"
-	nonce, ts, sign, err := createSignature(http.MethodPost, path, params, data)
+	nonce, ts, sign, err := createSignature(http.MethodPost, path, params, request.MarshalJSON(data))
 	if err != nil {
 		return nil, "", err
 	}
@@ -211,54 +211,3 @@ func (v *Identity) appToken(token *oauth2.Token) (*oauth2.Token, string, error)
 
 	return &tok, res.Data.UserId, nil
 }
-
-func (v *Identity) UpdateSession(vin string) (string, error) {
-	token, err := v.Token()
-	if err != nil {
-		return "", err
-	}
-
-	params := url.Values{
-		"identity_type": []string{"smart"},
-	}
-
-	data := map[string]string{
-		"vin":          vin,
-		"sessionToken": token.AccessToken,
-		"language":     "",
-	}
-
-	path := "/device-platform/user/session/update"
-	nonce, ts, sign, err := createSignature(http.MethodPost, path, params, data)
-	if err != nil {
-		return "", err
-	}
-
-	uri := fmt.Sprintf("%s/%s?%s", ApiURI, strings.TrimPrefix(path, "/"), params.Encode())
-	req, _ := request.New(http.MethodPost, uri, request.MarshalJSON(data), map[string]string{
-		"Accept":                  "application/json;responseformat=3",
-		"Content-Type":            "application/json; charset=utf-8",
-		"X-Api-Signature-Version": "1.0",
-		"X-Api-Signature-Nonce":   nonce,
-		"Authorization":           token.AccessToken,
-		"X-App-Id":                appID,
-		"X-Device-Identifier":     v.deviceID,
-		"X-Operator-Code":         operatorCode,
-		"X-Signature":             sign,
-		"X-Timestamp":             ts,
-	})
-
-	var res struct {
-		Code    ResponseCode
-		Message string
-		Data    AppToken
-	}
-
-	if err := v.DoJSON(req, &res); err != nil {
-		return "", err
-	} else if res.Code != ResponseOK {
-		return "", fmt.Errorf("%d: %s", res.Code, res.Message)
-	}
-
-	return "", nil
-}