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#!/var/www/opendc.ewi.tudelft.nl/web-server/venv/bin/python
import flask_socketio
import json
import os
import sys
import traceback
import urllib2
from flask import Flask, request, send_from_directory, jsonify
from oauth2client import client, crypt
from opendc.models.user import User
from opendc.util import exceptions, rest, path_parser, database
if len(sys.argv) < 2:
print "config file path not given as argument"
sys.exit(1)
# Get keys from config file
with open(sys.argv[1]) as f:
KEYS = json.load(f)
STATIC_ROOT = os.path.join(KEYS['ROOT_DIR'], 'opendc-frontend', 'build')
database.init_connection_pool(user=KEYS['MYSQL_USER'], password=KEYS['MYSQL_PASSWORD'],
database=KEYS['MYSQL_DATABASE'], host=KEYS['MYSQL_HOST'], port=KEYS['MYSQL_PORT'])
FLASK_CORE_APP = Flask(__name__, static_url_path='', static_folder=STATIC_ROOT)
FLASK_CORE_APP.config['SECREY_KEY'] = KEYS['FLASK_SECRET']
SOCKET_IO_CORE = flask_socketio.SocketIO(FLASK_CORE_APP)
@FLASK_CORE_APP.errorhandler(404)
def page_not_found(e):
return send_from_directory(STATIC_ROOT, 'index.html')
@FLASK_CORE_APP.route('/tokensignin', methods=['POST'])
def sign_in():
"""Authenticate a user with Google sign in"""
try:
token = request.form['idtoken']
except KeyError:
return 'No idtoken provided', 401
try:
idinfo = client.verify_id_token(token, KEYS['OAUTH_CLIENT_ID'])
if idinfo['aud'] != KEYS['OAUTH_CLIENT_ID']:
raise crypt.AppIdentityError('Unrecognized client.')
if idinfo['iss'] not in ['accounts.google.com', 'https://accounts.google.com']:
raise crypt.AppIdentityError('Wrong issuer.')
except ValueError:
url = "https://www.googleapis.com/oauth2/v3/tokeninfo?id_token={}".format(token)
req = urllib2.Request(url)
response = urllib2.urlopen(url=req, timeout=30)
res = response.read()
idinfo = json.loads(res)
except crypt.AppIdentityError, e:
return 'Did not successfully authenticate'
user = User.from_google_id(idinfo['sub'])
data = {
'isNewUser': not user.exists()
}
if user.exists():
data['userId'] = user.id
return jsonify(**data)
@FLASK_CORE_APP.route('/api/<string:version>/<path:endpoint_path>', methods=['GET', 'POST', 'PUT', 'DELETE'])
def api_call(version, endpoint_path):
"""Call an API endpoint directly over HTTP"""
# Get path and parameters
(path, path_parameters) = path_parser.parse(version, endpoint_path)
query_parameters = request.args.to_dict()
for param in query_parameters:
try:
query_parameters[param] = int(query_parameters[param])
except:
pass
try:
body_parameters = json.loads(request.get_data())
except:
body_parameters = {}
# Create and call request
(req, response) = _process_message({
'id': 0,
'method': request.method,
'parameters': {
'body': body_parameters,
'path': path_parameters,
'query': query_parameters
},
'path': path,
'token': request.headers.get('auth-token')
})
print 'HTTP:\t{} to `/{}` resulted in {}: {}'.format(
req.method,
req.path,
response.status['code'],
response.status['description']
)
sys.stdout.flush()
flask_response = jsonify(json.loads(response.to_JSON()))
flask_response.status_code = response.status['code']
return flask_response
@FLASK_CORE_APP.route('/my-auth-token')
def serve_web_server_test():
"""Serve the web server test."""
return send_from_directory(os.path.join(KEYS['ROOT_DIR'], 'opendc-web-server', 'static'), 'index.html')
@FLASK_CORE_APP.route('/')
@FLASK_CORE_APP.route('/simulations')
@FLASK_CORE_APP.route('/simulations/<path:simulation_id>')
@FLASK_CORE_APP.route('/simulations/<path:simulation_id>/experiments')
@FLASK_CORE_APP.route('/simulations/<path:simulation_id>/experiments/<path:experiment_id>')
@FLASK_CORE_APP.route('/profile')
def serve_index(simulation_id=None, experiment_id=None):
return send_from_directory(STATIC_ROOT, 'index.html')
@SOCKET_IO_CORE.on('request')
def receive_message(message):
""""Receive a SocketIO request"""
(request, response) = _process_message(message)
print 'Socket:\t{} to `/{}` resulted in {}: {}'.format(
request.method,
request.path,
response.status['code'],
response.status['description']
)
sys.stdout.flush()
flask_socketio.emit('response', response.to_JSON(), json=True)
def _process_message(message):
"""Process a request message and return the response."""
try:
request = rest.Request(message)
response = request.process()
return (request, response)
except exceptions.AuthorizationTokenError as e:
response = rest.Response(401, 'Authorization error')
response.id = message['id']
except exceptions.RequestInitializationError as e:
response = rest.Response(400, e.message)
response.id = message['id']
if not 'method' in message:
message['method'] = 'UNSPECIFIED'
if not 'path' in message:
message['path'] = 'UNSPECIFIED'
except Exception as e:
response = rest.Response(500, 'Internal server error')
if 'id' in message:
response.id = message['id']
traceback.print_exc()
request = rest.Request()
request.method = message['method']
request.path = message['path']
return (request, response)
SOCKET_IO_CORE.run(FLASK_CORE_APP, host='0.0.0.0', port=8081)
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