257 lines
8.3 KiB
Python
257 lines
8.3 KiB
Python
import functools
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import logging
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from flask import session, request, jsonify
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from music.model.user import User
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from music.auth.jwt_keys import validate_key
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logger = logging.getLogger(__name__)
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def is_logged_in():
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if 'username' in session:
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return True
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else:
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return False
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def is_basic_authed():
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if request.authorization:
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if request.authorization.get('username', None) and request.authorization.get('password', None):
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user = User.collection.filter('username', '==', request.authorization.username.strip().lower()).get()
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if user is None:
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return False, None
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if user.check_password(request.authorization.password):
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return True, user
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else:
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return False, user
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return False, None
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def is_jwt_authed():
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if request.headers.get('Authorization', None):
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unparsed = request.headers.get('Authorization')
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if unparsed.startswith('Bearer '):
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token = validate_key(unparsed.removeprefix('Bearer ').strip())
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if token is not None:
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return token
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def login_required(func):
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@functools.wraps(func)
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def login_required_wrapper(*args, **kwargs):
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if is_logged_in():
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user = User.collection.filter('username', '==', session['username'].strip().lower()).get()
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return func(*args, user=user, **kwargs)
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else:
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logger.warning('user not logged in')
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return jsonify({'error': 'not logged in'}), 401
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return login_required_wrapper
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def login_or_jwt(func):
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@functools.wraps(func)
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def login_or_jwt_wrapper(*args, **kwargs):
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if is_logged_in():
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user = User.collection.filter('username', '==', session['username'].strip().lower()).get()
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return func(*args, user=user, **kwargs)
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else:
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token = is_jwt_authed()
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if token is not None:
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user = User.collection.filter('username', '==', token['sub'].strip().lower()).get()
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if user is not None:
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return func(*args, auth=token, user=user, **kwargs)
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else:
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logger.warning(f'user {token["sub"]} not found')
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return jsonify({'error': f'user {token["sub"]} not found'}), 404
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else:
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logger.warning('user not authorised')
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return jsonify({'error': 'not authorised'}), 401
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return login_or_jwt_wrapper
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def jwt_required(func):
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@functools.wraps(func)
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def jwt_required_wrapper(*args, **kwargs):
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token = is_jwt_authed()
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if token is not None:
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user = User.collection.filter('username', '==', token['sub'].strip().lower()).get()
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if user is not None:
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return func(*args, auth=token, user=user, **kwargs)
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else:
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logger.warning(f'user {token["sub"]} not found')
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return jsonify({'error': f'user {token["sub"]} not found'}), 404
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else:
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logger.warning('user not authorised')
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return jsonify({'error': 'not authorised'}), 401
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return jwt_required_wrapper
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def login_or_basic_auth(func):
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@functools.wraps(func)
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def login_or_basic_auth_wrapper(*args, **kwargs):
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if is_logged_in():
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user = User.collection.filter('username', '==', session['username'].strip().lower()).get()
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return func(*args, user=user, **kwargs)
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else:
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check, user = is_basic_authed()
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if check:
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return func(*args, user=user, **kwargs)
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else:
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logger.warning('user not logged in')
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return jsonify({'error': 'not logged in'}), 401
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return login_or_basic_auth_wrapper
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def admin_required(func):
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@functools.wraps(func)
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def admin_required_wrapper(*args, **kwargs):
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db_user = kwargs.get('user')
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if db_user is not None:
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if db_user.type == 'admin':
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return func(*args, **kwargs)
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else:
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logger.warning(f'{db_user.username} not authorized')
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return jsonify({'status': 'error', 'message': 'unauthorized'}), 401
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else:
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logger.warning('user not logged in')
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return jsonify({'error': 'not logged in'}), 401
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return admin_required_wrapper
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def spotify_link_required(func):
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@functools.wraps(func)
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def spotify_link_required_wrapper(*args, **kwargs):
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db_user = kwargs.get('user')
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if db_user is not None:
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if db_user.spotify_linked:
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return func(*args, **kwargs)
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else:
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logger.warning(f'{db_user.username} spotify not linked')
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return jsonify({'status': 'error', 'message': 'spotify not linked'}), 401
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else:
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logger.warning('user not logged in')
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return jsonify({'error': 'not logged in'}), 401
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return spotify_link_required_wrapper
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def lastfm_username_required(func):
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@functools.wraps(func)
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def lastfm_username_required_wrapper(*args, **kwargs):
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db_user = kwargs.get('user')
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if db_user is not None:
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if db_user.lastfm_username and len(db_user.lastfm_username) > 0:
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return func(*args, **kwargs)
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else:
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logger.warning(f'no last.fm username for {db_user.username}')
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return jsonify({'status': 'error', 'message': 'no last.fm username'}), 401
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else:
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logger.warning('user not logged in')
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return jsonify({'error': 'not logged in'}), 401
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return lastfm_username_required_wrapper
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def gae_cron(func):
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@functools.wraps(func)
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def gae_cron_wrapper(*args, **kwargs):
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if request.headers.get('X-Appengine-Cron', None):
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return func(*args, **kwargs)
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else:
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logger.warning('user not logged in')
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return jsonify({'status': 'error', 'message': 'unauthorised'}), 401
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return gae_cron_wrapper
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def cloud_task(func):
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@functools.wraps(func)
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def cloud_task_wrapper(*args, **kwargs):
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if request.headers.get('X-AppEngine-QueueName', None):
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return func(*args, **kwargs)
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else:
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logger.warning('non tasks request')
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return jsonify({'status': 'error', 'message': 'unauthorised'}), 401
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return cloud_task_wrapper
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def validate_json(*expected_args):
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def decorator_validate_json(func):
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@functools.wraps(func)
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def wrapper_validate_json(*args, **kwargs):
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return check_dict(request_params=request.get_json(),
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expected_args=expected_args,
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func=func,
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args=args, kwargs=kwargs)
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return wrapper_validate_json
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return decorator_validate_json
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def validate_args(*expected_args):
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def decorator_validate_args(func):
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@functools.wraps(func)
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def wrapper_validate_args(*args, **kwargs):
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return check_dict(request_params=request.args,
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expected_args=expected_args,
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func=func,
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args=args, kwargs=kwargs)
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return wrapper_validate_args
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return decorator_validate_args
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def check_dict(request_params, expected_args, func, args, kwargs):
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for expected_arg in expected_args:
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if isinstance(expected_arg, tuple):
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arg_key = expected_arg[0]
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else:
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arg_key = expected_arg
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if arg_key not in request_params:
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return jsonify({'status': 'error', 'message': f'{arg_key} not provided'}), 400
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if isinstance(expected_arg, tuple):
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if not isinstance(request_params[arg_key], expected_arg[1]):
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return jsonify({'status': 'error', 'message': f'{arg_key} not of type {expected_arg[1]}'}), 400
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return func(*args, **kwargs)
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def no_cache(func):
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@functools.wraps(func)
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def no_cache_wrapper(*args, **kwargs):
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resp = func(*args, **kwargs)
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if isinstance(resp, tuple):
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response = resp[0]
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else:
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response = resp
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if response is not None:
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response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
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response.headers["Pragma"] = "no-cache"
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response.headers["Expires"] = "0"
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response.headers['Cache-Control'] = 'public, max-age=0'
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return resp
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return no_cache_wrapper
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