Fix issues with Flask app.

standings/app.py

@@ -1,11 +1,12 @@
-from flask import Flask, jsonify
+import os
+from flask import Flask, jsonify, current_app
 from flask.ext.redis import Redis
 from standings import Standings
 from standings.cache import EVEAPIRedisCache
 
 
 app = Flask(__name__)
-app.config['REDIS_URL'] = os.environ.get('REDIS_URL')
+app.config['REDIS_URL'] = os.environ.get('REDIS_URL', 'redis://localhost:6379/0')
 app.config['API_KEY_ID'] = os.environ.get('STANDINGS_API_KEY_ID')
 app.config['API_KEY_VCODE'] = os.environ.get('STANDINGS_API_KEY_VCODE')
 redis = Redis(app)
@@ -13,21 +14,29 @@ cache = EVEAPIRedisCache(redis)
 standings = Standings(app.config['API_KEY_ID'], app.config['API_KEY_VCODE'], cache_handler=cache)
 
 
+def check_config():
+    if not current_app.config['API_KEY_ID'] or current_app.config['API_KEY_VCODE']:
+        return 'Invalid API details specified, please check your configuration.'
+
 @app.route('/')
 @app.route('/standings.html')
 def index_html():
-  return standings.html()
+    check_config()
+    return standings.html()
 
 @app.route('/standings.txt')
 def index_txt():
-  return standings.text()
+    check_config()
+    return standings.text()
  
 @app.route('/standings.json')
 def index_json():
+    check_config()
     return jsonify(standings._get_standings())
 
-@app.route('/<string:template>')
+@app.route('/<template>')
 def index_template(template):
+    check_config()
     return standings.render_template(template)
 
 if __name__ == '__main__':