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()
 
@@ -195,8 +203,7 @@ class CloudInitApp:
     def _wrap_metadata(metadata):
         return {'ds': {
             'meta_data': metadata
-                       }
+            }}
-                }
 
     def _user_data(self, uuid=None):
         """
@@ -294,11 +301,11 @@ if __name__ == "__main__":
         CONFIG["server"].getint("server_port", 8081)
     ENGINE = cherrypy.engine
 
-    current_dir = os.path.dirname(os.path.abspath(__file__))
+    CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
-    config = {
+    CONFIG = {
         '/include': {
             'tools.staticdir.on': True,
-                           'tools.staticdir.dir': os.path.join(current_dir,
+            'tools.staticdir.dir': os.path.join(CURRENT_DIR,
                                                 'data',
                                                 'include'),
             'tools.staticdir.content_types': {
@@ -306,7 +313,7 @@ if __name__ == "__main__":
                 }
             }
         }
-    cherrypy.tree.mount(ROOT, config=config)
+    cherrypy.tree.mount(ROOT, config=CONFIG)
 
     if hasattr(ENGINE, "signal_handler"):
         ENGINE.signal_handler.subscribe()