main.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 from flask import Flask, request, session, g, redirect, url_for, abort, \
   5     render_template, flash
   6 import sqlite3
   7 from datetime import date, timedelta
   8 from contextlib import closing
   9 import locale
  10 locale.setlocale(locale.LC_ALL, '')
  11
  12 DATABASE = '/tmp/cavote.db'
  13 SECRET_KEY = '{J@uRKO,xO-PK7B,jF?>iHbxLasF9s#zjOoy=+:'
  14 DEBUG = True
  15
  16 app = Flask(__name__)
  17 app.config.from_object(__name__)
  18
  19 def connect_db():
  20     return sqlite3.connect(app.config['DATABASE'])
  21
  22 @app.before_request
  23 def before_request():
  24     g.db = connect_db()
  25
  26 @app.teardown_request
  27 def teardown_request(exception):
  28     g.db.close()
  29
  30 @app.route('/')
  31 def home():
  32     return render_template('index.html')
  33
  34 def query_db(query, args=(), one=False):
  35     cur = g.db.execute(query, args)
  36     rv = [dict((cur.description[idx][0], value)
  37         for idx, value in enumerate(row)) for row in cur.fetchall()]
  38     return (rv[0] if rv else None) if one else rv
  39
  40 def init_db():
  41     with closing(connect_db()) as db:
  42         with app.open_resource('schema.sql') as f:
  43             db.cursor().executescript(f.read())
  44         db.commit()
  45
  46 #----------------
  47 # Login / Logout
  48
  49 def valid_login(username, password):
  50     return query_db('select * from users where email = ? and password = ?', [username, password], one=True)
  51
  52 def connect_user(user):
  53     session['user'] = user # :KLUDGE:maethor:120528: Stoquer toute la ligne de la table users dans la session, c'est un peu crade…
  54     #session['user']['id'] = user['id']
  55     #session['user']['name'] = user['name']
  56     #session['user']['email'] = user['email']
  57     #session['user']['organization'] = user['organization']
  58     #if user['is_admin'] == 1:
  59     #    session['user']['is_admin'] = True
  60
  61 def disconnect_user():
  62     session.pop('user', None)
  63
  64 @app.route('/login', methods=['GET', 'POST'])
  65 def login():
  66     if request.method == 'POST':
  67         user = valid_login(request.form['username'], request.form['password'])
  68         if user is None:
  69             flash('Invalid username/password', 'error')
  70         else:
  71             connect_user(user)
  72             flash('You were logged in', 'success')
  73             return redirect(url_for('home'))
  74     return render_template('login.html')
  75
  76 @app.route('/logout')
  77 def logout():
  78     disconnect_user()
  79     flash('You were logged out', 'info')
  80     return redirect(url_for('home'))
  81
  82 #-----------------
  83 # Change password
  84
  85 @app.route('/password/lost', methods=['GET', 'POST'])
  86 def password_lost():
  87     info = None
  88     if request.method == 'POST':
  89         user = query_db('select * from users where email = ?', [request.form['email']], one=True)
  90         if user is None:
  91             flash('Cet utilisateur n\'existe pas !', 'error')
  92         else:
  93             # :TODO:maethor:120528: Générer la clé, la mettre dans la base de données et envoyer le mail
  94             flash(u"Un mail a été envoyé à " + user['email'], 'info')
  95     return render_template('password_lost.html')
  96
  97 @app.route('/login/<userid>/<key>')
  98 def login_key(userid, key):
  99     user = query_db('select * from users where id = ? and key = ?', [userid, key], one=True)
 100     if user is None or key == "invalid":
 101         abort(404)
 102     else:
 103         connect_user(user)
 104         # :TODO:maethor:120528: Remplacer la clé pour qu'elle ne puisse plus être utilisée (invalid)
 105         flash(u"Veuillez mettre à jour votre mot de passe", 'info')
 106         return redirect(url_for('user_password'), userid=user['userid'])
 107
 108 #---------------
 109 # User settings
 110
 111 @app.route('/user/<userid>')
 112 def show_user(userid):
 113     if int(userid) != session.get('user').get('id'):
 114         abort(401)
 115     return render_template('show_user.html')
 116
 117 @app.route('/user/settings/<userid>', methods=['GET', 'POST'])
 118 def user_settings(userid):
 119     if int(userid) != session.get('user').get('id'):
 120         abort(401)
 121     if request.method == 'POST':
 122         g.db.execute('update users set email = ?, name = ?, organization = ? where id = ?',
 123                 [request.form['email'], request.form['name'], request.form['organization'], session['user']['id']])
 124         g.db.commit()
 125         disconnect_user() # :TODO:maethor:120528: Maybe useless, but this is simple way to refresh session :D
 126         flash(u'Votre profil a été mis à jour !', 'success')
 127         return redirect(url_for('login'))
 128     return render_template('user_settings.html')
 129
 130 @app.route('/user/password/<userid>', methods=['GET', 'POST'])
 131 def user_password(userid):
 132     if int(userid) != session.get('user').get('id'):
 133         abort(401)
 134     if request.method == 'POST':
 135         if request.form['password'] == request.form['password2']:
 136             # :TODO:maethor:120528: Chiffrer le mot de passe !
 137             g.db.execute('update users set password = ? where id = ?', [request.form['password'], session['user']['id']])
 138             g.db.commit()
 139             flash(u'Votre mot de passe a été mis à jour.', 'success')
 140         else:
 141             flash(u'Les mots de passe sont différents.', 'error')
 142     return render_template('user_settings.html')
 143
 144 #------------
 145 # User admin
 146
 147 @app.route('/users/admin/add', methods=['GET', 'POST'])
 148 def add_user():
 149     if not session.get('user').get('is_admin'):
 150         abort(401)
 151     if request.method == 'POST':
 152         if request.form['email']:
 153             # :TODO:maethor:120528: Check fields
 154             password = "toto" # :TODO:maethor:120528: Generate password
 155             admin = 0
 156             if 'admin' in request.form.keys():
 157                 admin = 1
 158             g.db.execute('insert into users (email, name, organization, password, is_admin) values (?, ?, ?, ?, ?)',
 159                     [request.form['email'], request.form['username'], request.form['organization'], password, admin])
 160             g.db.commit()
 161             # :TODO:maethor:120528: Send mail
 162             flash(u'Le nouvel utilisateur a été créé avec succès', 'success')
 163             return redirect(url_for('home'))
 164         else:
 165             flash(u"Vous devez spécifier une adresse email.", 'error')
 166     return render_template('add_user.html')
 167
 168 #-------------
 169 # Roles admin
 170
 171 @app.route('/roles')
 172 def show_roles():
 173     if not session.get('user').get('is_admin'):
 174         abort(401)
 175     roles = query_db('select * from roles')
 176     return render_template('show_roles.html', roles=roles)
 177
 178 @app.route('/roles/admin/add', methods=['POST'])
 179 def add_role():
 180     if not session.get('user').get('is_admin'):
 181         abort(401)
 182     if request.method == 'POST':
 183         if request.form['name']:
 184             g.db.execute('insert into roles (name) values (?)', [request.form['name']])
 185             g.db.commit()
 186         else:
 187             flash(u"Vous devez spécifier un nom.", "error")
 188     return redirect(url_for('show_roles'))
 189
 190 @app.route('/roles/admin/delete/<idrole>')
 191 def del_role(idrole):
 192     if not session.get('user').get('is_admin'):
 193         abort(401)
 194     role = query_db('select * from roles where id = ?', [idrole], one=True)
 195     if role is None:
 196         abort(404)
 197     if role['system']:
 198         abort(401)
 199     g.db.execute('delete from roles where id = ?', [idrole])
 200     g.db.commit()
 201     return redirect(url_for('show_roles'))
 202
 203 #------------
 204 # Votes list
 205
 206 @app.route('/votes/<votes>')
 207 def show_votes(votes):
 208     today = date.today()
 209     if votes == 'all':
 210         votes = query_db('select * from votes order by id desc')
 211     elif votes == 'archive':
 212         votes = query_db('select * from votes where date_end < (?) order by id desc', [today])
 213     elif votes == 'current':
 214         votes = query_db('select * from votes where date_end >= (?) order by id desc', [today])
 215     else:
 216         abort(404)
 217     return render_template('show_votes.html', votes=votes)
 218
 219 #------
 220 # Vote
 221
 222 def can_see_vote(idvote, iduser=-1):
 223     user = query_db('select * from users where id=?', [iduser], one=True)
 224     vote = query_db('select * from votes where id=?', [idvote], one=True)
 225     if user is None and not vote.is_public:
 226         return False
 227     return True # :TODO:maethor:20120529: Check others things
 228
 229 def can_vote(idvote, iduser=-1):
 230     if not can_see_vote(idvote, iduser):
 231         return False
 232     return True # :TODO:maethor:20120529: Check others things
 233
 234 @app.route('/vote/<idvote>')
 235 def show_vote(idvote):
 236     vote = query_db('select * from votes where id=?', [idvote], one=True)
 237     if vote is None:
 238         abort(404)
 239     if can_see_vote(idvote, session.get('user').get('id')):
 240         choices = query_db('select * from choices where id_vote=?', [idvote])
 241         return render_template('vote.html', vote=vote, choices=choices, can_vote=can_vote(idvote, session.get('user').get('id')))
 242     flash('Vous n\'avez pas le droit de voir ce vote, désolé.')
 243     return(url_for('home'))
 244
 245 #-------------
 246 # Votes admin
 247
 248 @app.route('/votes/admin/add', methods=['GET', 'POST'])
 249 def add_vote():
 250     if not session.get('user').get('is_admin'):
 251         abort(401)
 252     if request.method == 'POST':
 253         if request.form['title']:
 254             date_begin = date.today()
 255             date_end = date.today() + timedelta(days=int(request.form['days']))
 256             transparent = 0
 257             public = 0
 258             multiplechoice = 0
 259             if 'transparent' in request.form.keys():
 260                 transparent = 1
 261             if 'public' in request.form.keys():
 262                 public = 1
 263             if 'multiplechoice' in request.form.keys():
 264                 multiplechoice = 1
 265             role = query_db('select id from roles where name = ?', [request.form['role']], one=True)
 266             if role is None:
 267                 role[id] = 1
 268             g.db.execute('insert into votes (title, description, category, date_begin, date_end, is_transparent, is_public, is_multiplechoice, id_role, id_author) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
 269                     [request.form['title'], request.form['description'], request.form['category'], date_begin, date_end, transparent, public, multiplechoice, role['id'], session['user']['id']])
 270             g.db.commit()
 271             vote = query_db('select * from votes where title = ? and date_begin = ? order by id desc',
 272                     [request.form['title'], date_begin], one=True) # :DEBUG:maethor:20120528: Bug possible car le titre n'est pas unique
 273             if vote is None:
 274                 flash(u'Une erreur est survenue !', 'error')
 275                 return redirect(url_for('home'))
 276             else:
 277                 flash(u"Le vote a été créé", 'info')
 278                 return redirect(url_for('edit_vote', voteid=vote['id']))
 279         else:
 280             flash(u'Vous devez spécifier un titre.', 'error')
 281     groups = query_db('select * from roles')
 282     return render_template('new_vote.html', groups=groups)
 283
 284 @app.route('/votes/admin/edit/<voteid>', methods=['GET', 'POST'])
 285 def edit_vote(voteid):
 286     if not session.get('user').get('is_admin'):
 287         abort(401)
 288     vote = query_db('select * from votes where id = ?', [voteid], one=True)
 289     if vote is None:
 290         abort(404)
 291     if request.method == 'POST':
 292         if request.form['title']:
 293             # :TODO:maethor:120529: Calculer date_begin pour pouvoir y ajouter duration et obtenir date_end
 294             transparent = 0
 295             public = 0
 296             if 'transparent' in request.form.keys():
 297                 transparent = 1
 298             if 'public' in request.form.keys():
 299                 public = 1
 300             isopen = 0
 301             if request.form['status'] == 'Ouvert': # :TODO:maethor:20120529: Check if there is at least 2 choices before
 302                 isopen = 1
 303             g.db.execute('update votes set title = ?, description = ?, category = ?, is_transparent = ?, is_public = ?, is_open = ? where id = ?',
 304                     [request.form['title'], request.form['description'], request.form['category'], transparent, public, isopen, voteid])
 305             g.db.commit()
 306             vote = query_db('select * from votes where id = ?', [voteid], one=True)
 307             flash(u"Le vote a bien été mis à jour.", "success")
 308         else:
 309             flash(u'Vous devez spécifier un titre.', 'error')
 310
 311     # :TODO:maethor:20120529: Calculer la durée du vote (différence date_end - date_begin)
 312     vote['duration'] = 15
 313     group = query_db('select name from roles where id = ?', [vote['id_role']], one=True)
 314     choices = query_db('select * from choices where id_vote = ?', [voteid])
 315     return render_template('edit_vote.html', vote=vote, group=group, choices=choices)
 316
 317 @app.route('/votes/admin/addchoice/<voteid>', methods=['POST'])
 318 def add_choice(voteid):
 319     if not session.get('user').get('is_admin'):
 320         abort(401)
 321     vote = query_db('select * from votes where id = ?', [voteid], one=True)
 322     if vote is None:
 323         abort(404)
 324     g.db.execute('insert into choices (name, id_vote) values (?, ?)', [request.form['title'], voteid])
 325     g.db.commit()
 326     return redirect(url_for('edit_vote', voteid=voteid))
 327
 328 @app.route('/votes/admin/editchoice/<voteid>/<choiceid>', methods=['POST', 'DELETE'])
 329 def edit_choice(voteid, choiceid):
 330     if not session.get('user').get('is_admin'):
 331         abort(401)
 332     choice = query_db('select * from choices where id = ? and id_vote = ?', [choiceid, voteid], one=True)
 333     if choice is None:
 334         abort(404)
 335     if request.method == 'POST':
 336         g.db.execute('update choices set name=? where id = ? and id_vote = ?', [request.form['title'], choiceid, voteid])
 337         g.db.commit()
 338     elif request.method == 'DELETE': # :COMMENT:maethor:20120528: I can't find how to use it from template
 339         g.db.execute('delete from choices where id = ? and id_vote = ?', [choiceid, voteid])
 340         g.db.commt()
 341     return redirect(url_for('edit_vote', voteid=voteid))
 342
 343 @app.route('/votes/admin/deletechoice/<voteid>/<choiceid>')
 344 def delete_choice(voteid, choiceid):
 345     if not session.get('user').get('is_admin'):
 346         abort(401)
 347     choice = query_db('select * from choices where id = ? and id_vote = ?', [choiceid, voteid], one=True)
 348     if choice is None:
 349         abort(404)
 350     g.db.execute('delete from choices where id = ? and id_vote = ?', [choiceid, voteid])
 351     g.db.commit()
 352     return redirect(url_for('edit_vote', voteid=voteid))
 353
 354 #------
 355 # Main
 356
 357 if __name__ == '__main__':
 358     app.run()
 359