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app.py
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app.py
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from datetime import datetime
import annotations
import brackets
import espn
import helpers
import json
import os
import random
import reddit_auth
import stats
import string
import sys
import time
from flask import Flask, Response, flash, get_flashed_messages, redirect, render_template, request, session, url_for
from flask_mobility import Mobility
from flask_kvsession import KVSessionExtension
from simplekv.memory.redisstore import RedisStore
import flask_babel
import redis
app = Flask(__name__)
flask_babel.Babel(app)
stats.Stats(app)
Mobility(app)
helpers.load_config(app)
redis_store = RedisStore(helpers.build_strict_redis(app))
KVSessionExtension(redis_store, app)
reddit_auth_instance = helpers.build_reddit_auth_instance(app)
user_manager = helpers.build_database_connection(app)
brackets = helpers.build_brackets_manager(user_manager)
espn = helpers.start_espn_manager(app)
#########################################################
## Leaderboards
@app.route("/", defaults={'year': app.config['YEAR']})
@app.route("/<int:year>/")
def index(year):
return __render(
'leaderboard',
scores = brackets.get_subreddit_scores(year),
year = year)
@app.route('/r/<subreddit>', defaults={'year': app.config['YEAR'], 'current_page': 1})
@app.route('/r/<subreddit>/page/<int:current_page>', defaults={'year': app.config['YEAR']})
@app.route('/<int:year>/r/<subreddit>', defaults={'current_page': 1})
@app.route('/<int:year>/r/<subreddit>/page/<int:current_page>')
def subreddit_leaderboard(year, subreddit, current_page):
return __render_users_page(
subreddit = subreddit,
current_page = current_page,
users = brackets.get_user_scores(year,subreddit = subreddit),
year = year)
@app.route('/users/', defaults={'year': app.config['YEAR'], 'current_page': 1})
@app.route('/users/page/<int:current_page>', defaults={'year': app.config['YEAR']})
@app.route('/<int:year>/users/', defaults={'current_page': 1})
@app.route('/<int:year>/users/page/<int:current_page>')
def users_leaderboard(year, current_page):
return __render_users_page(
current_page = current_page,
users = brackets.get_user_scores(year),
year = year)
def __render_users_page(current_page = 1, subreddit = None, users = [], year = 0):
page_size = app.config['USERS_PAGE_SIZE']
start = (current_page - 1) * page_size
return __render('users',
subreddit = subreddit,
current_page = current_page,
start = start,
pages = (len(users) - 1) // page_size + 1,
scores = users[start : start + page_size],
year = year)
@app.route('/<int:year>/results')
@annotations.authenticated_admin
def render_final_results(year):
return __render(
'final_results',
scores = brackets.get_subreddit_winners(year),
year = year)
@app.route('/find_self')
@annotations.authenticated
def find_self():
score = brackets.get_user_scores(app.config['YEAR'])
username = session['db_user']['username']
self_index = next((i for i, score in enumerate(score)
if score['username'] == username))
page_size = app.config['USERS_PAGE_SIZE']
self_page = self_index // page_size + 1
return redirect(
url_for('users_leaderboard',
current_page = self_page,
_anchor = username))
@app.route('/my_bracket')
@annotations.authenticated
def espn_bracket():
return redirect(espn.get_bracket_url(session['db_user']['new_bracket_id']))
#########################################################
## Control
@app.route('/refresh_all')
@annotations.authenticated_admin
def refresh_all_espn():
espn.schedule_crawl()
return 'Scheduling a refresh...'
#########################################################
## Settings handlers
@app.route('/mysubreddits')
@annotations.authenticated
def mysubreddits():
return Response(json.dumps(
reddit_auth_instance.get_subreddits(session['reddit_user']['name'])),
mimetype = 'text/json')
@app.route('/settings')
@annotations.enable_if(app.config['BRACKET_CHANGES_ALLOWED'])
@annotations.authenticated
def settings():
return __render('settings', year=app.config['YEAR'])
@app.route('/settings/update', methods = ['POST'])
@annotations.enable_if(app.config['BRACKET_CHANGES_ALLOWED'])
@annotations.authenticated
def update_settings():
user = session['db_user']
try:
if user['subreddit'] != request.form['subreddit']:
stats.record_one('users.change-subreddit')
user['subreddit'] = request.form['subreddit']
user['new_bracket_id'] = request.form['new_bracket_id']
bracket_name = espn.get_bracket_name(user['new_bracket_id'])
if (app.config.get('ENFORCE_BRACKET_NAMES_MATCH', False) and
user['username'].strip() != bracket_name.strip()):
flash('ESPN bracket name must be the same as your reddit username: '
'found "%s", expected "%s"' % (bracket_name, user['username']),
category = 'error')
return redirect('/settings')
user_subreddits = reddit_auth_instance.get_subreddits(
session['reddit_user']['name'])
if not [subreddit for subreddit in user_subreddits if user['subreddit'].strip() == subreddit['display_name']]:
flash('Subreddit "%s" not found. Ensure you are subscribed to the '
'subreddit and that it is typed correctly.' % user['subreddit'],
category = 'error')
return redirect('/settings')
if user_manager.save(user):
flash('Settings saved.', category = 'info');
except ValueError:
flash('Settings not saved: bracket ID must be an integer (see the '
'entryID=XXXXX value in your ESPN bracket URL).', category = 'error')
return redirect('/settings')
###########################################################
## Login/logout handlers
@app.route('/login')
def login():
return reddit_auth_instance.redirect_to_authorization_url()
@app.route("/login/authenticated")
def login_authenticated():
user = reddit_auth_instance.validate_login(request)
if user is None:
flash('Login error.', category = 'error')
return redirect('/')
user_age_days = (time.time() - user['created']) // 3600 // 24;
if user_age_days < app.config['MINIMUM_USER_AGE_DAYS']:
flash(
'Only accounts older than %d days may participate ' %
(app.config['MINIMUM_USER_AGE_DAYS']), category = 'error')
return redirect('/')
session['reddit_user'] = user
session['db_user'] = user_manager.get(user['name'])
session['is_admin'] = user['name'] in ['Concision', 'navytank']
# Sort of a hack: flair is only accessible via a single extra reddit request.
# We can't list all flairs for the subreddit. So instead, we do it once on
# login. This means we should save it right away.
#if 'flair' in user:
# session['db_user']['flair'] = user['flair']
# user_manager.save(session['db_user'])
# If no subreddit is set yet, go directly to settings page
if not session['db_user']['subreddit']:
return redirect('/settings')
return redirect('/')
@app.route("/logout")
def logout():
session.clear()
return redirect('/')
##########################################################
## Generic handlers
@app.errorhandler(500)
def error_500(error):
stats.record_one('500')
from traceback import format_exc
return format_exc(), 500, {'Content-Type': 'text/plain'}
@app.before_request
def record_request():
stats.record_one('request')
# CSRF handling, mostly taken from:
# http://flask.pocoo.org/snippets/3/
# How the hell does Flask not include CSRF support
@app.before_request
def csrf_protect():
if request.method == 'POST':
token = session.get('_csrf_token', None)
if not token or token != request.form.get('_csrf_token'):
stats.record_one('csrf_failure')
flask.abort(403)
def generate_csrf_token():
if '_csrf_token' not in session:
session['_csrf_token'] = ''.join(
random.choice(string.ascii_letters) for _ in range(20))
return session['_csrf_token']
app.jinja_env.globals['csrf_token'] = generate_csrf_token
# Delta formatting
def format_datetime(time):
delta = datetime.now() - time
return flask_babel.format_timedelta(delta, granularity = 'minute')
app.jinja_env.filters['timedelta'] = format_datetime
@stats.record('app')
def __render(template_name, **kwargs):
'''
Renders the main page, with the content section filled in as an include.
Arguments:
- template_name: the name of the template to invoke. Appends a '.tpl' extension
before loading.
- **kwargs: anything to pass to the template.
'''
# Hardcode 2014 as first year the bracket competition ran,
# and 2020 as an exception (didn't occur).
years_rendered = [y for y in range(app.config['YEAR'], 2013, -1) if y != 2020]
return render_template('page.tpl',
user = session['db_user'] if 'db_user' in session else None,
bracket_changes_allowed = app.config['BRACKET_CHANGES_ALLOWED'],
is_admin = 'is_admin' in session and session['is_admin'],
content_template = template_name + '.tpl',
last_scrape_run = espn.get_last_run(),
messages = {
message_type: get_flashed_messages(category_filter = [message_type])
for message_type in ['error', 'info']
},
years_rendered = years_rendered,
**kwargs)
# Startup when invoked via "python app.py"
# mod_wsgi runs the app separately
if __name__ == "__main__":
app.run(host = app.config['HOST'], port = app.config['PORT'])