Add flask server for online functionalities

Flask-Server/dummy.py

@@ -0,0 +1,3 @@
+import requests
+r = requests.post("http://127.0.0.1:5000/message/2", data={'content':'Piano 2'})
+print(r.text)

Flask-Server/server.py

@@ -0,0 +1,58 @@
+from flask import Flask, session, url_for, redirect, request, render_template, abort, flash, Markup, json
+from datetime import datetime
+from flask_sqlalchemy import SQLAlchemy
+import random
+import os
+from  sqlalchemy.sql.expression import func
+
+app = Flask(__name__)
+app.secret_key = "debug-attivo"
+app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite'
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+db = SQLAlchemy(app)
+app.config.from_object(__name__)
+
+
+# Database Classes go beyond this line
+
+class Message(db.Model):
+    mid = db.Column(db.Integer, primary_key=True)
+    floor = db.Column(db.Integer, nullable=False)
+    content = db.Column(db.String, nullable=False)
+
+    def toJSON(self):
+        return {"Message": {'floor': self.floor,
+                            'content': self.content}}
+
+    def __init__(self, content, floor):
+        self.content = content
+        self.floor = floor
+
+    def __repr__(self):
+        return self.content
+
+
+def give_json_response(floor):
+    messages = Message.query.filter_by(floor=floor).order_by(func.random()).limit(5).all()
+    return json.dumps([message.toJSON() for message in messages])
+
+
+# Website pages and API functions go beyond this line
+@app.route("/message/<int:floor>", methods=["GET", "POST"])
+def page_message(floor):
+    if request.method == "GET":
+        return give_json_response(floor)
+    newmessage = Message(request.form['content'], floor)
+    db.session.add(newmessage)
+    db.session.commit()
+    return "Success."
+
+
+if __name__ == "__main__":
+    # Se non esiste il database viene creato
+    if not os.path.isfile("db.sqlite"):
+        newmessage = Message("Welcome to the dungeon, mortal.", 1)
+        db.create_all()
+        db.session.add(newmessage)
+        db.session.commit()
+    app.run(debug=True)