def challenge_by_name(challenge_name):
"""
Page to display a challenge given a problem name.
"""
challenge = mongodb.challenges.find_one({'name': challenge_name})
if not challenge or ( not is_active_user_in('Dev') and challenge['dev_only'] ):
abort(404)
submissions = mongodb.submissions.find({ 'cid': challenge['cid'] }).sort([ ('rating', -1) ]).limit(10)
challenge_solutions = []
i = 0
for submission in submissions:
i += 1
# TODO: Batch request
user_from_submission = mongodb.users.find_one({ 'uid': submission['uid'] })
if not user_from_submission:
raise Exception("Could not find user " + submission['uid'] + " in the database")
submission['sequence'] = i
submission['username'] = user_from_submission['username']
submission['RD'] = int(round(submission['RD']))
challenge_solutions.append(submission)
matches = latest_matches( cid = challenge['cid'] )
return render_template('challenge.html', challenge = challenge, challenge_solutions = challenge_solutions, matches = matches, custom_title = challenge_name)
def challenge():
"""
Page to display a challenge given an id.
"""
challenge_id = request.args.get('cid')
if not challenge_id:
abort(404)
challenge = mongodb.challenges.find_one({'cid': challenge_id})
if challenge and ( is_active_user_in('Dev') or not challenge['dev_only'] ):
return render_template('challenge.html', challenge=challenge)
else:
abort(404)
def submitsolution(challenge_name):
"""
Allows a user to submit/update (override) a solution to an existing challenge.
"""
challenge = mongodb.challenges.find_one({'name': challenge_name})
if not challenge or ( not is_active_user_in('Dev') and challenge['dev_only'] ):
abort(404)
if request.method == 'GET':
return render_template('submitsolution.html', challenge = challenge)
if 'language' not in request.form:
return render_template('submit.solution.html', challenge = challenge, error = "Please select a language"), 400
language = request.form['language']
if language not in ACCEPTED_LANGUAGES.keys():
return render_template('submitsolution.html', challenge = challenge, error = "Invalid language"), 403
file = request.files['sourcefile']
if not file:
return render_template('submitsolution.html', challenge = challenge, error = "Please select a Source File"), 400
# Source/Solution/Submission (you choose!) Instance ID
siid = str(uuid4())
# Upload the source file to the 'mjollnir-solutions' S3 bucket using the siid as the key
upload_solution(siid, language, file)
# Update/Create a database entry for this submission
query_existing_solution = { 'uid': user.custom_data['uid'], 'cid': challenge['cid'] }
existing_solution = mongodb.submissions.find_one(query_existing_solution)
if existing_solution:
# For an existing solution, we have to set the 'build_' attributes and notify
# the compiler service. The service is responsible for updating the database entries
# when it finishes compiling.
update_document = { '$set': { 'build_siid': siid,
'build_status': "Waiting",
'build_description': "" } }
mongodb.submissions.update(query_existing_solution, update_document)
document = existing_solution
else:
# For new solutions, we just add the document blueprint
document = { 'siid': '',
'build_siid': siid,
'build_status': "Waiting",
'build_description': "",
'cid': challenge['cid'],
'uid': user.custom_data['uid'],
'sid': str(uuid4()),
'rating': 1500,
'RD': 300.0,
'previous_submissions': [] }
mongodb.submissions.insert(document)
error = ''
try:
r = requests.post('http://' + app.config['YGG_URL'] + '/build', data={'sid': document['sid'], 'cid': document['cid'], 'password': app.config['YGG_PASSWORD']})
if r.status_code != 200:
error = 'Could not send solution to build. Please notify system administrators.'
logger.warn('[%s] Error %d in /build: %s' % (time.strftime('%Y-%m-%d %H:%M:%S'), r.status_code, r.text))
except requests.exceptions.ConnectionError as e:
error = 'Connection refused. Yggdrasil may be down. Please notify system administrators.'
logger.warn('[%s] Exception in /build: %s' % (time.strftime('%Y-%m-%d %H:%M:%S'), e.message))
if error:
return render_template('submitsolution.html', challenge = challenge, error = error), 400
return redirect(url_for('dashboard'))
def groups_dashboard():
"""
Renders a list of groups the user can see
"""
username = user.username
if not username:
abort(400)
user_in_db = mongodb.users.find_one({ 'username': username })
if not user_in_db:
abort(404)
groups = filter(lambda group: not group['admin_only'] or username in group['admins'] or is_active_user_in('Dev'), mongodb.groups.find())
return render_template('groups.html', username = username, groups = groups)
def challenges():
"""
Page to display all challenges
"""
challenges = sorted_by_name( [challenge for challenge in mongodb.challenges.find() if ( not challenge['dev_only'] or is_active_user_in('Dev') )] )
return render_template('challenges.html', challenges=challenges)
