Minor fix to support "~/" like part in path parameter

desktop_env/server/main.py

@@ -465,7 +465,7 @@ def get_directory_tree():
 def get_file():
     # Retrieve filename from the POST request
     if 'file_path' in request.form:
-        file_path = request.form['file_path']
+        file_path = os.path.expanduser(request.form['file_path'])
     else:
         return jsonify({"error": "file_path is required"}), 400
 
@@ -481,7 +481,7 @@ def get_file():
 def upload_file():
     # Retrieve filename from the POST request
     if 'file_path' in request.form and 'file_data' in request.files:
-        file_path = request.form['file_path']
+        file_path = os.path.expanduser(request.form['file_path'])
         file = request.files["file_data"]
         file.save(file_path)
         return "File Uploaded"
@@ -507,7 +507,7 @@ def change_wallpaper():
     if not path:
         return "Path not supplied!", 400
 
-    path = Path(path)
+    path = Path(os.path.expanduser(path))
 
     if not path.exists():
         return f"File not found: {path}", 404
@@ -538,7 +538,7 @@ def download_file():
     if not url or not path:
         return "Path or URL not supplied!", 400
 
-    path = Path(path)
+    path = Path(os.path.expanduser(path))
     path.parent.mkdir(parents=True, exist_ok=True)
 
     max_retries = 3
@@ -567,7 +567,7 @@ def open_file():
     if not path:
         return "Path not supplied!", 400
 
-    path = Path(path)
+    path = Path(os.path.expanduser(path))
 
     if not path.exists():
         return f"File not found: {path}", 404