KFSCIS Seminar Series Registration

from flask import Flask, request, redirect, render_template_string, make_response, url_for from datetime import datetime, date from collections import defaultdict import hashlib import uuid import csv import os app = Flask(__name__) # ----------------- Configuration ----------------- SECRET_KEY = "KFSCIS-Secret" # Change this for production CSV_FILE = "participants.csv" TXT_FILE = "participants.txt" entries = [] # Will be loaded from file at startup # ----------------- Token Generator ----------------- def get_today_token(): today = date.today().isoformat() raw = f"{today}-{SECRET_KEY}" return hashlib.sha256(raw.encode()).hexdigest()[:12] # ----------------- File Utilities ----------------- def init_files(): """Create CSV and text files if they don't exist.""" if not os.path.exists(CSV_FILE): with open(CSV_FILE, "w", newline="", encoding="utf-8") as f: writer = csv.writer(f) writer.writerow(["Date", "Time", "First Name", "Last Name", "PhD Advisor", "Fingerprint"]) if not os.path.exists(TXT_FILE): with open(TXT_FILE, "w", encoding="utf-8") as f: f.write("Participants Log (KFSCIS Seminar Series)\n") f.write("=" * 60 + "\n\n") def load_entries(): """Load previous participants from CSV into memory at startup.""" if not os.path.exists(CSV_FILE): return with open(CSV_FILE, "r", encoding="utf-8") as f: reader = csv.DictReader(f) for row in reader: entries.append({ "date": row["Date"], "time": row["Time"], "firstname": row["First Name"], "lastname": row["Last Name"], "advisor": row["PhD Advisor"], "fingerprint": row["Fingerprint"] }) def append_to_files(entry): """Append a record to both CSV and text file.""" # Append to CSV with open(CSV_FILE, "a", newline="", encoding="utf-8") as f: writer = csv.writer(f) writer.writerow([ entry["date"], entry["time"], entry["firstname"], entry["lastname"], entry["advisor"], entry["fingerprint"] ]) # Append to text file (human-readable) with open(TXT_FILE, "a", encoding="utf-8") as f: f.write( f"{entry['date']} {entry['time']} | " f"{entry['firstname']} {entry['lastname']} " f"(Advisor: {entry['advisor']}) " f"[Fingerprint: {entry['fingerprint']}]\n" ) # Initialize persistence init_files() load_entries() # ----------------- Templates ----------------- form_html = """ KFSCIS Seminar Series Registration

KFSCIS Seminar Series: Technology · Research · Innovation

{% if error %}

{% endif %}

""" list_html = """ Registered Participants - KFSCIS Seminar Series

🎓 KFSCIS Seminar Series Participants 🎓

🎉 Kudos to these students! 🎉

{% for date, day_entries in grouped_entries.items() %}

📅 Seminar Date: {{ date }}

{% for e in day_entries %} {% endfor %}

Time	First Name	Last Name	PhD Advisor	Fingerprint
{{ e.time }}	{{ e.firstname }}	{{ e.lastname }}	{{ e.advisor }}	{{ e.fingerprint }}

{% endfor %}

← Back to Registration

""" # ----------------- Routes ----------------- @app.route("/") def root_redirect(): token = get_today_token() return redirect(url_for("register_page", token=token)) @app.route("/register/", methods=["GET"]) def register_page(token): if token != get_today_token(): return "

❌ Invalid or expired registration link.

", 403 fingerprint = request.cookies.get("fingerprint") if fingerprint and any(e["fingerprint"] == fingerprint for e in entries): return render_template_string(form_html, error="You have already registered from this device.", token=token) return render_template_string(form_html, error=None, token=token) @app.route("/submit/", methods=["POST"]) def submit(token): if token != get_today_token(): return "

❌ Invalid or expired registration link.

", 403 fingerprint = request.cookies.get("fingerprint") or str(uuid.uuid4()) if any(e["fingerprint"] == fingerprint for e in entries): return render_template_string(form_html, error="You have already registered from this device.", token=token) firstname = request.form["firstname"].strip() lastname = request.form["lastname"].strip() advisor = request.form["advisor"].strip() now = datetime.now() entry = { "firstname": firstname, "lastname": lastname, "advisor": advisor, "date": now.strftime("%Y-%m-%d"), "time": now.strftime("%H:%M:%S"), "fingerprint": fingerprint } entries.append(entry) append_to_files(entry) resp = make_response(redirect("/list")) resp.set_cookie("fingerprint", fingerprint, max_age=24 * 60 * 60) return resp @app.route("/list") def show_list(): grouped_entries = defaultdict(list) for e in entries: grouped_entries[e["date"]].append(e) return render_template_string(list_html, grouped_entries=grouped_entries) # ----------------- Run ----------------- #if __name__ == "__main__": # app.run(debug=True, port=8000) # Production entry point for Apache WSGI application = app