PEP8

main.py

@@ -7,6 +7,7 @@ import configparser
 import os
 import socket
 import sys
+import uuid as uuid_module
 from ipaddress import AddressValueError, IPv4Address, IPv6Address
 from os import access, R_OK
 
@@ -33,10 +34,17 @@ class CloudInitRequest:
         self.remoteip = None
         self.hostinfo = ('localhost', )
         self.request = request
-        self.uuid = uuid
         self.meta_data = None
         self.meta_data_loaded = False
         self.user_data = None
+
+        try:
+            self.uuid = str(uuid_module.UUID('{' + uuid + '}'))
+        # ValueError is wrong UUID syntax
+        # TypeError is None
+        except (ValueError, TypeError):
+            self.uuid = None
+
         self._init_ip()
         self._generate_default_meta_data()
 
@@ -126,7 +134,7 @@ class CloudInitRequest:
         filename = self._get_filename(META_DATA_FILENAME)
         if filename:
             self._update_meta_data_from_file(
-                    filename
+                filename
                 )
         self.meta_data_loaded = True
         return self.meta_data
@@ -194,9 +202,8 @@ class CloudInitApp:
     @staticmethod
     def _wrap_metadata(metadata):
         return {'ds': {
-                          'meta_data': metadata
-                       }
-                }
+            'meta_data': metadata
+            }}
 
     def _user_data(self, uuid=None):
         """
@@ -294,19 +301,19 @@ if __name__ == "__main__":
         CONFIG["server"].getint("server_port", 8081)
     ENGINE = cherrypy.engine
 
-    current_dir = os.path.dirname(os.path.abspath(__file__))
-    config = {
-              '/include': {
-                           'tools.staticdir.on': True,
-                           'tools.staticdir.dir': os.path.join(current_dir,
-                                                               'data',
-                                                               'include'),
-                           'tools.staticdir.content_types': {
-                                                             'yml': 'text/yaml'
-                                                             }
-                          }
-             }
-    cherrypy.tree.mount(ROOT, config=config)
+    CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
+    CONFIG = {
+        '/include': {
+            'tools.staticdir.on': True,
+            'tools.staticdir.dir': os.path.join(CURRENT_DIR,
+                                                'data',
+                                                'include'),
+            'tools.staticdir.content_types': {
+                'yml': 'text/yaml'
+                }
+            }
+        }
+    cherrypy.tree.mount(ROOT, config=CONFIG)
 
     if hasattr(ENGINE, "signal_handler"):
         ENGINE.signal_handler.subscribe()