add authentication

api/__init__.py

@@ -1,4 +1,4 @@
-from flask import Flask, jsonify
+from flask import Flask, jsonify, Response, request
 from flask_sqlalchemy import SQLAlchemy
 
 app = Flask(__name__)
@@ -17,6 +17,22 @@ from api.views import designers
 app.register_blueprint(designers.mod)
 
 
+def check_authentication():
+    auth = request.authorization
+    if not auth:
+        return False
+    return auth.username in app.config.get("API_KEYS")
+
+
+@app.before_request
+def authenticate():
+    if not check_authentication():
+        return Response(
+            'No valid API key provided', 401,
+            {'WWW-Authenticate': 'Basic realm="Login Required"'}
+        )
+
+
 @app.route("/")
 def index():
     data = {