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app.py
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app.py
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from flask import Flask, render_template, request, url_for, redirect, session, send_file, jsonify
from flask_session import Session
from flask_socketio import SocketIO, join_room, leave_room, emit
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
import os
import base64
from io import BytesIO
import datetime
app = Flask(__name__)
# Database configuration
app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://default:gN9Zeldkmb6P@ep-patient-bar-a49hhlnc-pooler.us-east-1.aws.neon.tech:5432/verceldb?sslmode=require'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
# Initialize SQLAlchemy
db = SQLAlchemy(app)
# Session configuration
app.config["SESSION_TYPE"] = 'sqlalchemy'
app.config["SESSION_SQLALCHEMY"] = db # Use the existing db instance
app.config["SESSION_PERMANENT"] = False
# Initialize Flask-Session
Session(app)
# Initialize Flask-Migrate
migrate = Migrate(app, db)
# Initialize Flask-SocketIO
socketio = SocketIO(app, manage_session=False)
# Define Models
class Message(db.Model):
id = db.Column(db.Integer, primary_key=True)
room_name = db.Column(db.String(100), nullable=False)
username = db.Column(db.String(100), nullable=False)
content = db.Column(db.Text, nullable=False)
timestamp = db.Column(db.DateTime, default=datetime.datetime.utcnow)
class File(db.Model):
id = db.Column(db.Integer, primary_key=True)
room_name = db.Column(db.String(100), nullable=False)
username = db.Column(db.String(100), nullable=False)
filename = db.Column(db.String(255), nullable=False)
data = db.Column(db.LargeBinary, nullable=False)
timestamp = db.Column(db.DateTime, default=datetime.datetime.utcnow)
@app.route("/", methods=['GET', 'POST'])
def index():
return render_template('index.html')
@app.route('/main')
def main():
return render_template('main.html')
@app.route('/sender', methods=["GET", "POST"])
def sender():
if request.method == "POST":
username = request.form["username"]
room_name = request.form["Room_Name"]
session["username"] = username
session["Room_Name"] = room_name
return render_template('share/sender.html', Session=session)
elif session.get('username') is not None:
return render_template('share/receiver.html', Session=session)
else:
return redirect(url_for('receiver'))
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/receiver', methods=["GET", "POST"])
def receiver():
return render_template('share/receiver.html')
@app.route('/download_temp/<file_id>')
def download_temp_file(file_id):
file_record = File.query.get(file_id)
file_stream = BytesIO(file_record.data)
file_stream.seek(0)
return send_file(file_stream, as_attachment=True, attachment_filename=file_record.filename)
@app.route('/instructions')
def instructions():
return render_template('instructions/instructions.html')
@app.route('/Downloads')
def to_downloads():
return render_template('Downloads/Downloads.html')
@socketio.on('sender', namespace='/sender')
def sender_event(message):
Room_Name = session.get('Room_Name')
username = session.get('username')
join_room(Room_Name)
emit('status', {
"msg": f"{username} has joined the room!!!"
}, room=Room_Name)
@socketio.on('text', namespace='/sender')
def text_event(message):
Room_Name = session.get('Room_Name')
username = session.get('username')
content = message['msg']
# Save message to the database
new_message = Message(room_name=Room_Name, username=username, content=content)
db.session.add(new_message)
db.session.commit()
emit('message', {
"msg": f"{username}: {content}"
}, room=Room_Name)
@socketio.on('left', namespace='/sender')
def left_event(message):
Room_Name = session.get('Room_Name')
username = session.get('username')
leave_room(Room_Name)
session.clear()
emit('status', {
"msg": f"{username} has left the room :("
}, room=Room_Name)
@socketio.on('file', namespace='/sender')
def handle_file(data):
Room_Name = session.get('Room_Name')
username = session.get('username')
filename = data['fileName']
file_data = base64.b64decode(data['file'].split(",")[1])
# Save file to the database
new_file = File(room_name=Room_Name, username=username, filename=filename, data=file_data)
db.session.add(new_file)
db.session.commit()
emit('message', {
'file': filename,
'file_id': new_file.id,
'username': username
}, room=Room_Name)
if __name__ == '__main__':
socketio.run(app, debug=True, port=2024)