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cato447
2025-12-09 00:13:03 +01:00
parent 86d0da5ca7
commit daffc4f458
3 changed files with 149 additions and 30 deletions
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56
app/__init__.py
View File

@@ -1,3 +1,4 @@
from logging.config import dictConfig
from flask import Flask
from flask_socketio import SocketIO
from .models import db
@@ -8,6 +9,60 @@ from .seed_db import seed_courses
socketio = SocketIO(async_mode='eventlet', cors_allowed_origins="*")
def create_app():
# Configure logging BEFORE creating the application object
dictConfig({
'version': 1,
'disable_existing_loggers': False,
'formatters': {
'default': {
'format': '[%(asctime)s] %(levelname)s in %(module)s: %(message)s',
},
'plain': {
'format': '%(message)s',
}
},
'handlers': {
# Console handler (keeps logs visible in terminal)
'wsgi': {
'class': 'logging.StreamHandler',
'stream': 'ext://flask.logging.wsgi_errors_stream',
'formatter': 'default'
},
# File handler for Application Logs (slides.log)
'slides_file': {
'class': 'logging.handlers.RotatingFileHandler',
'filename': 'slides.log',
'maxBytes': 1024 * 1024 * 10, # 10 MB
'backupCount': 5,
'formatter': 'default',
'level': 'INFO',
'encoding': 'utf8'
},
# File handler for Request Logs (requests.log)
'requests_file': {
'class': 'logging.handlers.RotatingFileHandler',
'filename': 'requests.log',
'maxBytes': 1024 * 1024 * 10, # 10 MB
'backupCount': 5,
'formatter': 'plain', # Requests already have timestamps/formatting
'level': 'INFO',
'encoding': 'utf8'
}
},
'root': {
'level': 'INFO',
'handlers': ['wsgi', 'slides_file']
},
'loggers': {
# Isolate the Werkzeug request logger
'werkzeug': {
'level': 'INFO',
'handlers': ['wsgi', 'requests_file'],
'propagate': False # Prevent requests from leaking into slides.log
}
}
})
app = Flask(__name__, static_folder='static', static_url_path='/static')
app.config.from_object('config.Config')
db.init_app(app)
@@ -20,7 +75,6 @@ def create_app():
init_serializer(app)
init_auth(app)
socketio.init_app(app)
from .routes import main

92
app/routes.py
View File

@@ -10,7 +10,7 @@ import pytz
from flask import (
Blueprint,
abort,
current_app,
current_app, # Used for logging
flash,
make_response,
redirect,
@@ -51,6 +51,7 @@ slidev_all_pattern = re.compile(r"^\/slides\/([^\/]+)\/([^\/]+)(?:\/presenter)?\
def on_connect():
if flask_login.current_user.is_authenticated:
join_room("instructor")
current_app.logger.info(f"Instructor connected to socket: {flask_login.current_user.id}")
@main.after_request
def inject_confused_button(response):
@@ -101,9 +102,8 @@ def index():
if not token:
return redirect(url_for("main.set_token"))
else:
for deck in get_unlocked_decks(token):
print(str(deck) + " | " + str(deck.export_file))
# Use current_app.logger for debug info
current_app.logger.debug(f"User {token.name} is viewing index with {len(token.decks)} decks unlocked.")
return render_template('index.html', active_banner=get_active_banner(), decks=get_unlocked_decks(token), user_name=token.name, active_course_name=token.active_course.name, courses=get_all_courses())
def set_cookie(token):
@@ -141,10 +141,10 @@ def set_token():
if not token:
flash(f'The username "{user_name}" does not exist.', 'error')
current_app.logger.warning(f"Login failed: Username '{user_name}' not found.")
return render_template('set_token.html')
print(f"Set token {session}")
current_app.logger.info(f"User logged in: {user_name}")
return set_cookie(token)
return render_template('set_token.html')
@@ -177,7 +177,7 @@ def register():
# If all validation passes, "register" the user
token = create_token(user_name)
print(f"User registered: {user_name}")
current_app.logger.info(f"New user registered: {user_name}")
return set_cookie(token)
@@ -186,6 +186,10 @@ def register():
@main.route('/logout', methods=['POST'])
def logout():
token = get_token()
user_name = token.name if token else "Unknown"
current_app.logger.info(f"User logout: {user_name}")
resp = make_response(redirect(url_for('main.index'))) # Redirect to a safe page, e.g., index or login
resp.set_cookie('access_token', '', expires=0) # Clears the cookie
return resp
@@ -202,6 +206,9 @@ def switch_course(new_course: int):
if switched:
token.active_course = switched
db.session.commit()
current_app.logger.info(f"User {token.name} switched to course: {switched.name}")
else:
current_app.logger.warning(f"User {token.name} attempted to switch to invalid course ID: {new_course}")
return redirect(url_for("main.index"))
@@ -217,6 +224,7 @@ def admin_login():
user = user_loader(user_name)
if user and check_password(user, password):
flask_login.login_user(user)
current_app.logger.info(f"Admin login successful: {user_name}")
next = request.args.get('next')
if next is None:
return redirect(url_for('main.index'))
@@ -226,18 +234,18 @@ def admin_login():
return redirect(next)
else:
current_app.logger.warning(f"Failed admin login attempt: {user_name}")
flash('Incorrect username or password. Please try again.', 'error')
return render_template("admin_login.html", form=form)
def process_access_code(access_code: str):
token = get_token()
print(f"Process {token}")
if not token:
# remember where the user wanted to go
session['next_url'] = url_for('main.access_get', access_code=access_code)
print(f"Process {session}")
current_app.logger.debug("Access code used without session. Redirecting to login.")
return redirect(url_for('main.set_token'))
password = db.session.execute(
@@ -247,10 +255,13 @@ def process_access_code(access_code: str):
if password is not None:
if not password.is_expired():
update_token(password.decks)
update_token(password.decks)
current_app.logger.info(f"User {token.name} used valid access code.")
else:
current_app.logger.info(f"User {token.name} used expired access code.")
flash('Password has expired. Please obtain a new one.', 'expired')
else:
current_app.logger.warning(f"User {token.name} used invalid access code: {access_code}")
flash('Password is not valid. Please check the code and try again.', 'error')
return redirect(url_for('main.index'))
@@ -271,6 +282,10 @@ def access_get(access_code: str):
@main.route('/confused', methods=['POST'])
def confused():
token = get_token()
user = token.name if token else "Anonymous"
current_app.logger.info(f"Confused button clicked by: {user}")
socketio.emit(
"confused",
{
@@ -280,34 +295,52 @@ def confused():
)
return ("", 204)
def log_404(reason: str, deck: str, course: str, path: str):
"""
Helper function to log 404 errors with the user's identity.
Uses current_app.logger to ensure logs are handled by the app's config.
"""
token = get_token()
user_identity = f"User: {token.name} (ID: {token.id})" if token else "User: Anonymous"
current_app.logger.warning(f"404 Not Found [{reason}] | {user_identity} | Resource: {course}/{deck}/{path}")
@main.route('/slides/<course_folder>/<deck>/')
@main.route('/slides/<course_folder>/<deck>/<path:path>')
def serve_deck(deck, course_folder, path='index.html'):
course = db.session.execute(db.select(Course).where(Course.folder==course_folder)).scalar()
if not course:
log_404("Course not found", deck, course_folder, path)
abort(404)
assert isinstance(course, Course)
deck = db.session.execute(db.select(Deck).where(Deck.deck==deck and Deck.course_id == course.id)).scalar()
if not deck:
deck_obj = db.session.execute(db.select(Deck).where(Deck.deck==deck and Deck.course_id == course.id)).scalar()
if not deck_obj:
log_404("Deck not in database", deck, course_folder, path)
abort(404)
assert isinstance(deck, Deck)
assert isinstance(deck_obj, Deck)
if not is_deck_unlocked(deck.deck):
if not is_deck_unlocked(deck_obj.deck):
# We generally do not log redirects for locked content as 404s,
# but you could log a warning here if desired.
current_app.logger.info(f"Access denied (locked) for user {get_token().name if get_token() else 'Anon'} -> {deck}")
return redirect(url_for('main.index'))
slides_dir = os.path.join(current_app.config['SLIDES_DIR'], course.folder)
deck_path = os.path.join(slides_dir, deck.deck)
deck_path = os.path.join(slides_dir, deck_obj.deck)
if not os.path.exists(deck_path):
log_404("Deck directory missing on disk", deck, course_folder, path)
return f"Deck '{deck}' not found.", 404
if slidev_all_pattern.match(request.path):
return send_from_directory(deck_path, deck.index_file)
return send_from_directory(deck_path, deck_obj.index_file)
requested_file = os.path.join(deck_path, path)
if os.path.isfile(requested_file):
return send_from_directory(deck_path, path)
log_404("File missing within deck", deck, course_folder, path)
abort(404)
@@ -315,20 +348,26 @@ def serve_deck(deck, course_folder, path='index.html'):
def serve_export(deck, course_folder, path):
course = db.session.execute(db.select(Course).where(Course.folder==course_folder)).scalar()
if not course:
log_404("Export: Course not found", deck, course_folder, path)
abort(404)
assert isinstance(course, Course)
deck = db.session.execute(db.select(Deck).where(Deck.deck==deck and Deck.course_id == course.id)).scalar()
if not deck:
deck_obj = db.session.execute(db.select(Deck).where(Deck.deck==deck and Deck.course_id == course.id)).scalar()
if not deck_obj:
log_404("Export: Deck not in database", deck, course_folder, path)
abort(404)
assert isinstance(deck, Deck)
assert isinstance(deck_obj, Deck)
if not is_deck_unlocked(deck.deck):
if not is_deck_unlocked(deck_obj.deck):
return redirect(url_for('main.index'))
exports_dir = os.path.join(current_app.config['EXPORTS_DIR'], course.folder)
deck_path = os.path.join(exports_dir, deck.deck)
deck_path = os.path.join(exports_dir, deck_obj.deck)
requested_file = os.path.join(deck_path, path)
if os.path.isfile(requested_file):
return send_from_directory(deck_path, path)
log_404("Export file missing", deck, course_folder, path)
abort(404)
@@ -337,6 +376,7 @@ def serve_export(deck, course_folder, path):
def admin():
active_course = get_course(flask_login.current_user.active_course_id)
if active_course is None:
current_app.logger.error(f"Admin user {flask_login.current_user.id} has invalid active_course_id.")
raise Exception
deck_form = DeckForm()
password_form = PasswordForm()
@@ -357,6 +397,7 @@ def admin():
)
db.session.add(deck)
db.session.commit()
current_app.logger.info(f"Admin created deck: {deck.name}")
if "submit_password" in request.form:
if password_form.validate():
@@ -374,11 +415,12 @@ def admin():
password.decks.extend(decks)
db.session.add(password)
db.session.commit()
current_app.logger.info(f"Admin created password: {value} (Expires: {expires_at})")
else:
# Form was submitted but validation failed
for field, errors in password_form.errors.items():
for error in errors:
print(f"Error in {getattr(password_form, field).label.text}: {error}", flush=True)
current_app.logger.warning(f"Admin form validation error ({field}): {error}")
return redirect(url_for('main.admin'))
return render_template("admin.html", deck_form=deck_form, password_form=password_form, decks=decks, passwords=get_passwords(active_course), courses=get_all_courses(), active_course_name=active_course.name)
@@ -389,6 +431,7 @@ def switch_course_admin(new_course: int):
user = flask_login.current_user
if get_course(new_course):
user.active_course_id = new_course
current_app.logger.info(f"Admin {user.id} switched to course ID {new_course}")
return redirect(url_for("main.admin"))
@main.route('/admin/banner', methods=['POST', 'GET'])
@@ -401,12 +444,14 @@ def banner():
banner = InfoBanner(content=content)
db.session.add(banner)
db.session.commit()
current_app.logger.info(f"Admin added banner: {content[:30]}...")
return render_template("banner.html", banner_form=banner_form, banners=db.session.execute(db.select(InfoBanner)).scalars())
@main.route('/admin/decks/<int:deck_id>/delete', methods=['POST'])
@flask_login.login_required
def delete_deck(deck_id: int):
deck = Deck.query.get_or_404(deck_id)
current_app.logger.info(f"Admin deleted deck: {deck.name}")
db.session.delete(deck)
db.session.commit()
return redirect(url_for('main.admin'))
@@ -415,6 +460,7 @@ def delete_deck(deck_id: int):
@flask_login.login_required
def delete_password(password_id: int):
password = Password.query.get_or_404(password_id)
current_app.logger.info(f"Admin deleted password ID {password_id}")
db.session.delete(password)
db.session.commit()
return redirect(url_for('main.admin'))
@@ -430,6 +476,7 @@ def set_active_banner(banner_id):
active_banner.is_active = False
banner.is_active = True
db.session.commit()
current_app.logger.info(f"Admin activated banner ID {banner_id}")
return redirect(url_for('main.banner'))
@main.route('/admin/banner/hide', methods=['POST'])
@@ -439,6 +486,7 @@ def hide_active_banner():
if banner:
banner.is_active = False
db.session.commit()
current_app.logger.info("Admin hid active banner")
return redirect(url_for('main.banner'))
@main.route('/admin/confused')

31
app/utils.py
View File

@@ -1,4 +1,5 @@
import os
import logging
from flask import Flask, request, session
from typing import cast
@@ -7,10 +8,14 @@ from xkcdpass import xkcd_password
from .models import Deck, InfoBanner, Token, db, Course
# Create a module-level logger per Flask/Python standards
logger = logging.getLogger(__name__)
def init_password_generator():
wordfile = xkcd_password.locate_wordfile()
global words
words = xkcd_password.generate_wordlist(wordfile=wordfile, min_length=3, max_length=6)
logger.info("Password generator initialized.")
def init_serializer(app: Flask):
global serializer
@@ -21,9 +26,14 @@ def get_active_banner() -> InfoBanner | None:
def get_available_decks(app: Flask, course: Course):
slides_dir = os.path.join(app.config['SLIDES_DIR'], course.folder)
deck_names = [name for name in os.listdir(slides_dir) if os.path.isdir(os.path.join(slides_dir, name))]
deck_names.sort()
return deck_names
try:
deck_names = [name for name in os.listdir(slides_dir) if os.path.isdir(os.path.join(slides_dir, name))]
deck_names.sort()
return deck_names
except FileNotFoundError:
# Log this error as it indicates a configuration or filesystem issue
logger.error(f"Slides directory not found for course {course.folder}: {slides_dir}")
return []
def generate_username() -> str:
return cast(str, xkcd_password.generate_xkcdpassword(wordlist=words, numwords=3, delimiter="-"))
@@ -42,6 +52,8 @@ def generate_token() -> Token:
if not db.session.execute(db.select(Token).where(Token.name == user_name)).scalar():
break
else:
# Critical error: Application cannot register new users
logger.critical(f"Failed to generate unique username after {max_tries} tries.")
raise RuntimeError(f"Unique username could not be generated after {max_tries} tries")
return create_token(user_name)
@@ -49,20 +61,23 @@ def create_token(user_name : str) -> Token:
token = Token(user_name)
db.session.add(token)
db.session.commit()
logger.info(f"Created new token for user: {user_name}")
return token
def serialize_token(token: Token) -> str:
return serializer.dumps(token.id)
def get_token() -> (Token | None):
token = request.cookies.get('access_token')
if not token:
token_cookie = request.cookies.get('access_token')
if not token_cookie:
return None
try:
id = serializer.loads(token)
id = serializer.loads(token_cookie)
token = db.session.get(Token, id)
return token
except BadSignature:
# Warning: Client sent a tampered or invalid cookie
logger.warning("Invalid signature for token cookie encountered.")
return None
def retrieve_token(username : str):
@@ -77,7 +92,6 @@ def get_unlocked_decks(token: (Token|None)):
def is_deck_unlocked(deck: str):
token = get_token()
print(token)
if token:
return token.is_unlocked(deck)
else:
@@ -89,8 +103,11 @@ def update_token(decks: list[Deck]):
"""
token = get_token()
if token is None:
logger.error("Attempted to update token decks, but token is None.")
raise ValueError("Invalid token is set")
else:
# Log the update action
logger.info(f"Updating decks for user {token.name}. Adding {len(decks)} decks.")
token.decks = list(set(decks + token.decks))
db.session.commit()