Started some real work around a gps tracker postions server.

GpsTrackerServer/GpsTrackerServer.pyproj

@@ -27,9 +27,21 @@
     <EnableUnmanagedDebugging>false</EnableUnmanagedDebugging>
   </PropertyGroup>
   <ItemGroup>
+    <Compile Include="api.py">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="constants.py">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Include="main.py">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="middlewares.py">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="resources.py">
+      <SubType>Code</SubType>
+    </Compile>
   </ItemGroup>
   <ItemGroup>
     <InterpreterReference Include="Global|PythonCore|3.6" />

GpsTrackerServer/api.py

@@ -0,0 +1,16 @@
+import falcon
+import middlewares
+import resources
+import constants
+
+#from constants import *
+
+def create():
+	api = falcon.API(media_type=constants.MEDIA_CSV, middleware=[
+		middlewares.AuthMiddleware(constants.USER_AGENT),
+		middlewares.RequireCSV()
+	])
+
+	api.add_route(constants.ROUTES_POSITIONS, resources.PositionsResource())
+
+	return api

GpsTrackerServer/constants.py

@@ -0,0 +1,4 @@
+USER_AGENT = 'SIMCOM_MODULE'
+MEDIA_CSV = 'text/csv'
+
+ROUTES_POSITIONS = '/positions'

GpsTrackerServer/main.py

@@ -2,34 +2,12 @@
 Basic HTTP server to receive and save gps positions sent by Arduino GPS Tracker
 """
 
-import falcon
-
-class RequireCSV:
-
-	def process_request(self, req, resp):
-		if req.method in ('POST', 'PUT'):
-			if 'text/csv' not in req.content_type:
-				raise falcon.HTTPUnsupportedMediaType('Only CSV is supported')
-
-class PositionsResource:
-
-	def on_post(self, req, resp):
-		data = req.bounded_stream.read()
-		resp.body = data
-		resp.status = falcon.HTTP_201
-
-positions = PositionsResource()
-
-api = falcon.API(middleware=[
-	RequireCSV()
-])
-
-api.add_route('/positions', positions)
+import api
 
 if __name__ == "__main__":
 	# Use python built-in WSGI reference implemention to run a web server
 	from wsgiref.simple_server import make_server
 
 	print('Starting web server...')
-	srv = make_server('localhost', 8080, api)
-	srv.serve_forever()
+	srv = make_server('localhost', 8080, api.create())
+	srv.serve_forever()

GpsTrackerServer/middlewares.py

@@ -0,0 +1,24 @@
+import falcon
+import constants
+
+class RequireCSV(object):
+
+	def process_request(self, req, resp):
+		if req.method in ('POST', 'PUT'):
+			if constants.MEDIA_CSV not in req.content_type:
+				raise falcon.HTTPUnsupportedMediaType
+
+class AuthMiddleware(object):
+
+	def __init__(self, userAgentRequired):
+		self._userAgentRequired = userAgentRequired
+
+	def process_request(self, req, resp):
+		authorization = req.get_header('Authorization')
+		userAgent = req.get_header('User-Agent')
+
+		if userAgent != self._userAgentRequired:
+			if authorization is None: #make clients believe that Authorization header is the issue
+				raise falcon.HTTPForbidden
+			else:
+			   raise falcon.HTTPUnauthorized

GpsTrackerServer/resources.py

@@ -0,0 +1,11 @@
+import falcon
+
+class PositionsResource:
+
+	def on_post(self, req, resp):
+		data = req.bounded_stream.read()
+		resp.body = data
+		resp.status = falcon.HTTP_201
+
+	def on_get(self, req, resp):
+		raise falcon.HTTPNotImplemented