replacing redis with postgres.

tools/storage.cfg

@@ -1,4 +1,4 @@
-[pgsql]
+[postgres]
 hostname=localhost
 username=captiveportal
 password=secret.

tools/storage.py

@@ -5,9 +5,24 @@ Database storage backends for client.py.
 import json
 from datetime import datetime
 
+import psycopg2
 from redis import Redis
 
 
+class StoragePostgres(object):
+
+    def __init__(self, **kw):
+        config = kw.pop('config')
+
+        self.conn = psycopg2.connect(
+            host=config.get('postgres', 'hostname'),
+            user=config.get('postgres', 'username'),
+            password=config.get('postgres', 'password'),
+            dbname=config.get('postgres', 'database'),
+            port=config.getint('postgres', 'port')
+        )
+
+
 class DateTimeEncoder(json.JSONEncoder):
     """
     json.JSONEncoder sub-class that converts all datetime objects to
@@ -20,6 +35,9 @@ class DateTimeEncoder(json.JSONEncoder):
 
 
 class StorageRedis(object):
+    """
+    Note: Abandoned this storage backend for Postgres.
+    """
 
     def __init__(self, **kw):
         config = kw.pop('config')
@@ -32,4 +50,4 @@ class StorageRedis(object):
 
     
     def add_client(self, client_id, **kw):
-        pass
+        raise NotImplemented