/
auth.py
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/
auth.py
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import base64
import random
import string
import requests
from flask import request, jsonify, make_response, Blueprint
from flask_jwt import current_identity as current_user, jwt_required
from sqlalchemy.orm.exc import NoResultFound
from app import get_settings
from app.api.helpers.db import save_to_db, get_count
from app.api.helpers.errors import UnprocessableEntityError, NotFoundError, BadRequestError
from app.api.helpers.files import make_frontend_url
from app.api.helpers.mail import send_email_with_action, \
send_email_confirmation
from app.api.helpers.notification import send_notification_with_action
from app.api.helpers.third_party_auth import GoogleOAuth, FbOAuth, TwitterOAuth, InstagramOAuth
from app.api.helpers.utilities import get_serializer, str_generator
from app.models import db
from app.models.mail import PASSWORD_RESET, PASSWORD_CHANGE, \
USER_REGISTER_WITH_PASSWORD, PASSWORD_RESET_AND_VERIFY
from app.models.notification import PASSWORD_CHANGE as PASSWORD_CHANGE_NOTIF
from app.models.user import User
auth_routes = Blueprint('auth', __name__, url_prefix='/v1/auth')
@auth_routes.route('/oauth/<provider>', methods=['GET'])
def redirect_uri(provider):
if provider == 'facebook':
provider_class = FbOAuth()
elif provider == 'google':
provider_class = GoogleOAuth()
elif provider == 'twitter':
provider_class = TwitterOAuth()
elif provider == 'instagram':
provider_class = InstagramOAuth()
else:
return make_response(jsonify(
message="No support for {}".format(provider)), 404)
client_id = provider_class.get_client_id()
if not client_id:
return make_response(jsonify(
message="{} client id is not configured on the server".format(provider)), 404)
url = provider_class.get_auth_uri() + '?client_id=' + \
client_id + '&redirect_uri=' + \
provider_class.get_redirect_uri()
return make_response(jsonify(url=url), 200)
@auth_routes.route('/oauth/token/<provider>', methods=['GET'])
def get_token(provider):
if provider == 'facebook':
provider_class = FbOAuth()
payload = {
'grant_type': 'client_credentials',
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
elif provider == 'google':
provider_class = GoogleOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
elif provider == 'twitter':
provider_class = TwitterOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
elif provider == 'instagram':
provider_class = InstagramOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
else:
return make_response(jsonify(
message="No support for {}".format(provider)), 200)
response = requests.post(provider_class.get_token_uri(), params=payload)
return make_response(jsonify(token=response.json()), 200)
@auth_routes.route('/oauth/login/<provider>/<auth_code>/', methods=['GET'])
def login_user(provider, auth_code):
if provider == 'facebook':
provider_class = FbOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'redirect_uri': request.args.get('redirect_uri'),
'client_secret': provider_class.get_client_secret(),
'code': auth_code
}
if not payload['client_id'] or payload['client_secret']:
raise NotImplementedError({'source': ''}, 'Facebook Login Not Configured')
access_token = requests.get('https://graph.facebook.com/v3.0/oauth/access_token', params=payload).json()
payload_details = {
'input_token': access_token['access_token'],
'access_token': provider_class.get_client_id() + '|' + provider_class.get_client_secret()
}
details = requests.get('https://graph.facebook.com/debug_token', params=payload_details).json()
user_details = requests.get('https://graph.facebook.com/v3.0/' + details['data']['user_id'],
params={'access_token': access_token['access_token'],
'fields': 'first_name, last_name, email'}).json()
if get_count(db.session.query(User).filter_by(email=user_details['email'])) > 0:
user = db.session.query(User).filter_by(email=user_details['email']).one()
if not user.facebook_id:
user.facebook_id = user_details['id']
user.facebook_login_hash = random.getrandbits(128)
save_to_db(user)
return make_response(
jsonify(user_id=user.id, email=user.email, facebook_login_hash=user.facebook_login_hash), 200)
user = User()
user.first_name = user_details['first_name']
user.last_name = user_details['last_name']
user.facebook_id = user_details['id']
user.facebook_login_hash = random.getrandbits(128)
user.password = ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(8))
if user_details['email']:
user.email = user_details['email']
save_to_db(user)
return make_response(jsonify(user_id=user.id, email=user.email, facebook_login_hash=user.facebook_login_hash),
200)
elif provider == 'google':
provider_class = GoogleOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
elif provider == 'twitter':
provider_class = TwitterOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
elif provider == 'instagram':
provider_class = InstagramOAuth()
payload = {
'client_id': provider_class.get_client_id(),
'client_secret': provider_class.get_client_secret()
}
else:
return make_response(jsonify(
message="No support for {}".format(provider)), 200)
response = requests.post(provider_class.get_token_uri(), params=payload)
return make_response(jsonify(token=response.json()), 200)
@auth_routes.route('/verify-email', methods=['POST'])
def verify_email():
token = base64.b64decode(request.json['data']['token'])
s = get_serializer()
try:
data = s.loads(token)
except Exception:
return BadRequestError({'source': ''}, 'Invalid Token').respond()
try:
user = User.query.filter_by(email=data[0]).one()
except Exception:
return BadRequestError({'source': ''}, 'Invalid Token').respond()
else:
user.is_verified = True
save_to_db(user)
return make_response(jsonify(message="Email Verified"), 200)
@auth_routes.route('/resend-verification-email', methods=['POST'])
def resend_verification_email():
try:
email = request.json['data']['email']
except TypeError:
return BadRequestError({'source': ''}, 'Bad Request Error').respond()
try:
user = User.query.filter_by(email=email).one()
except NoResultFound:
return UnprocessableEntityError(
{'source': ''}, 'User with email: ' + email + ' not found.').respond()
else:
serializer = get_serializer()
hash_ = str(base64.b64encode(str(serializer.dumps(
[user.email, str_generator()])).encode()), 'utf-8')
link = make_frontend_url(
'/verify'.format(id=user.id), {'token': hash_})
send_email_confirmation(user.email, link)
return make_response(jsonify(message="Verification email resent"), 200)
@auth_routes.route('/reset-password', methods=['POST'])
def reset_password_post():
try:
email = request.json['data']['email']
except TypeError:
return BadRequestError({'source': ''}, 'Bad Request Error').respond()
try:
user = User.query.filter_by(email=email).one()
except NoResultFound:
return NotFoundError({'source': ''}, 'User not found').respond()
else:
link = make_frontend_url('/reset-password', {'token': user.reset_password})
if user.was_registered_with_order:
send_email_with_action(user, PASSWORD_RESET_AND_VERIFY, app_name=get_settings()['app_name'], link=link)
else:
send_email_with_action(user, PASSWORD_RESET, app_name=get_settings()['app_name'], link=link)
return make_response(jsonify(message="Email Sent"), 200)
@auth_routes.route('/reset-password', methods=['PATCH'])
def reset_password_patch():
token = request.json['data']['token']
password = request.json['data']['password']
try:
user = User.query.filter_by(reset_password=token).one()
except NoResultFound:
return NotFoundError({'source': ''}, 'User Not Found').respond()
else:
user.password = password
if user.was_registered_with_order:
user.is_verified = True
save_to_db(user)
return jsonify({
"id": user.id,
"email": user.email,
"name": user.fullname if user.fullname else None
})
@auth_routes.route('/change-password', methods=['POST'])
@jwt_required()
def change_password():
old_password = request.json['data']['old-password']
new_password = request.json['data']['new-password']
try:
user = User.query.filter_by(id=current_user.id).one()
except NoResultFound:
return NotFoundError({'source': ''}, 'User Not Found').respond()
else:
if user.is_correct_password(old_password):
if len(new_password) < 8:
return BadRequestError({'source': ''},
'Password should have minimum 8 characters').respond()
user.password = new_password
save_to_db(user)
send_email_with_action(user, PASSWORD_CHANGE,
app_name=get_settings()['app_name'])
send_notification_with_action(user, PASSWORD_CHANGE_NOTIF,
app_name=get_settings()['app_name'])
else:
return BadRequestError({'source': ''}, 'Wrong Password').respond()
return jsonify({
"id": user.id,
"email": user.email,
"name": user.fullname if user.fullname else None,
"password-changed": True
})