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#!/usr/bin/python3
import markdown
from flask import (
Flask,
render_template,
Markup,
request,
g,
send_from_directory,
redirect
)
import sqlite3
class dbProxy(object):
def __init__(self, db):
self.conn = sqlite3.connect(db)
self.conn.row_factory = self.dict_factory
self.c = self.conn.cursor()
def create(self):
self.c.execute("CREATE TABLE IF NOT EXISTS jokes(id INTEGER PRIMARY KEY NOT NULL, text TEXT, upvotes INTEGER, downvotes INTEGER, reports INTEGER)")
def close(self):
self.conn.close()
def dict_factory(self, cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
def sort(self, joke):
interactions = joke["reports"]*5 + joke["upvotes"] + joke["downvotes"] + 1
score = 1/interactions * (joke["upvotes"]+1)/interactions
return score
def getJokes(self):
jokes = self.c.execute("SELECT * FROM jokes").fetchall()
jokes = sorted(jokes, key=self.sort, reverse=True)
return jokes
def addJoke(self, text):
self.c.execute("INSERT INTO jokes(text, upvotes, downvotes, reports) VALUES (?, 0, 0, 0)", (text, ))
self.conn.commit()
def voteJoke(self, objectId, down):
if down:
self.c.execute("UPDATE jokes SET downvotes=downvotes+1 WHERE id=?", (objectId))
else:
self.c.execute("UPDATE jokes SET upvotes=upvotes+1 WHERE id=?", (objectId))
self.conn.commit()
def reportJoke(self, objectId):
self.c.execute("UPDATE jokes SET reports=reports+1 WHERE id=?", (objectId))
self.conn.commit()
def db():
db = getattr(g, "_database", None)
if db is None:
db = g._database = dbProxy("votes.db")
db.create()
return db
app = Flask(__name__)
@app.teardown_appcontext
def close_db(exception):
db = getattr(g, "_database", None)
if db is not None:
db.close()
@app.route('/')
def root():
jokes = db().getJokes()
for joke in jokes:
joke['text'] = Markup(markdown.markdown(joke['text'], extensions=['markdown.extensions.nl2br'], output_format="html5", safe_mode="remove")) # TODO cache TODO safe_mode deprecated
return render_template('index.html', jokes=jokes)
@app.route('/submit', methods=['POST'])
def submit():
text = request.form['text']
db().addJoke(text) # TODO auth
return redirect('/')
@app.route('/vote', methods=['POST'])
def vote():
objectId = request.form['id']
db().voteJoke(objectId, request.form['vote'] == 'downvote')
return redirect('/')
@app.route('/report', methods=['POST'])
def report():
objectId = request.form['id']
db().reportJoke(objectId)
return redirect('/')
@app.route('/static/<path:path>')
def get_static(path):
return send_from_directory('static', path)
if __name__ == '__main__':
app.run(debug=True)
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