From fc8f8c5742b032f7afcc8c8b17bc3aa320b0a3fb Mon Sep 17 00:00:00 2001
From: Sakura-Byte <42319937+Sakura-Byte@users.noreply.github.com>
Date: Sun, 26 Jan 2025 16:26:23 +0800
Subject: [PATCH] Update alist.go

---
 backend/alist/alist.go | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/backend/alist/alist.go b/backend/alist/alist.go
index 88fb4e60f1b97..5a762413e20bd 100644
--- a/backend/alist/alist.go
+++ b/backend/alist/alist.go
@@ -41,6 +41,7 @@ const (
 	apiMkdir  = "/api/fs/mkdir"
 	apiRemove = "/api/fs/remove"
 	apiGet    = "/api/fs/get"
+	apiMe     = "/api/me"
 )
 
 func init() {
@@ -121,6 +122,7 @@ type Fs struct {
 	fileListCacheMu sync.Mutex
 	fileListCache   map[string]listResponse
 
+	userPermission int
 	// New fields for Cloudflare handling
 	cfCookie       *http.Cookie
 	cfCookieExpiry time.Time
@@ -137,6 +139,14 @@ type loginResponse struct {
 	} `json:"data"`
 }
 
+type meResponse struct {
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Data    struct {
+		Permission int `json:"permission"`
+	} `json:"data"`
+}
+
 type fileInfo struct {
 	Name     string    `json:"name"`
 	Size     int64     `json:"size"`
@@ -202,6 +212,11 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		return nil, err
 	}
 
+	// Ensure url does not end with '/'
+	if strings.HasSuffix(opt.URL, "/") {
+		opt.URL = opt.URL[:len(opt.URL)-1]
+	}
+
 	// Ensure root starts with '/'
 	if !strings.HasPrefix(root, "/") {
 		root = "/" + root
@@ -245,6 +260,14 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		f.token = ""
 	}
 
+	// Get user permissions
+	var meResp meResponse
+	err = f.makeRequest(ctx, "GET", apiMe, nil, &meResp)
+	if err != nil {
+		return nil, fmt.Errorf("failed to retrieve user permissions: %w", err)
+	}
+	f.userPermission = meResp.Data.Permission
+
 	// Set supported hash types
 	f.features = (&fs.Features{
 		CanHaveEmptyDirectories: true,
@@ -480,9 +503,11 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 		"path":     path.Join(f.root, dir),
 		"per_page": 1000,
 		"page":     1,
-		"refresh":  true,
 		"password": f.opt.MetaPass,
 	}
+	if f.userPermission == 2 {
+		data["refresh"] = true
+	}
 
 	var listResp listResponse
 	err = f.makeRequest(ctx, "POST", apiList, data, &listResp)
@@ -817,7 +842,11 @@ func (f *Fs) fetchCloudflare(ctx context.Context) error {
 	if err != nil {
 		return err
 	}
-	defer resp.Body.Close()
+	defer func() {
+		if err := resp.Body.Close(); err != nil {
+			fs.Errorf(ctx, "Failed to close response body: %v", err)
+		}
+	}()
 
 	var cookieData struct {
 		Cookies []struct {