enabled xml file import

app.py

@@ -3,6 +3,7 @@
 from flask import request, send_from_directory
 from flask_api import FlaskAPI
 import RPi.GPIO as GPIO
+import shutil
 import os
 
 from xml_reader import Xml_reader
@@ -31,18 +32,19 @@ def xml_transfer():
 
         # set a new config.xml
         if request.method == "POST":
-            if 'config.xml' not in request.files:
-                raise ReferenceError("no file part")
-            file = request.files["config.xml"]
-            if file.filename != 'config.xml':
-                raise NameError("the file recieved does not have the filename config.xml")
-            file.save('/tmp/aped_device/config.xml')
+            if not os.path.exists('/tmp/aped_device'):
+                os.mkdir("/tmp/aped_device")
+            tmp_file = open("/tmp/aped_device/config.xml","w")
+            data = request.get_data(as_text=True)
+            tmp_file.write(data)
+            tmp_file.close()
             #check config.xml against the XSD file
             if xml_reader.validate('/tmp/aped_device/config.xml','XML/config.xsd'):
-                os.replace('XML/config.xml','XML/config_old.xml')
-                os.replace('/tmp/aped_device/config.xml','XML/config.xml')
+                shutil.move('XML/config.xml','XML/config_old.xml')
+                shutil.move('/tmp/aped_device/config.xml','XML/config.xml')
             else:
                 SyntaxError('the config.xml has invalid content')
+            return {'error': ''}
     except Exception as e:
         return {'error' : str(e)}