95 lines
2.6 KiB
Python
95 lines
2.6 KiB
Python
import re
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from typing import Optional, Tuple
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from flask import Request
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from fittrackee.responses import (
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ForbiddenErrorResponse,
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HttpResponse,
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UnauthorizedErrorResponse,
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)
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from .models import User
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def is_admin(user_id: int) -> bool:
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"""
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Return if user has admin rights
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"""
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user = User.query.filter_by(id=user_id).first()
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return user.admin
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def is_valid_email(email: str) -> bool:
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"""
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Return if email format is valid
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"""
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mail_pattern = r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)"
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return re.match(mail_pattern, email) is not None
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def check_passwords(password: str, password_conf: str) -> str:
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"""
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Verify if password and password confirmation are the same and have
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more than 8 characters
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If not, it returns not empty string
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"""
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ret = ''
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if password_conf != password:
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ret = 'Password and password confirmation don\'t match.\n'
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if len(password) < 8:
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ret += 'Password: 8 characters required.\n'
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return ret
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def register_controls(
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username: str, email: str, password: str, password_conf: str
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) -> str:
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"""
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Verify if user name, email and passwords are valid
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If not, it returns not empty string
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"""
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ret = ''
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if not 2 < len(username) < 13:
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ret += 'Username: 3 to 12 characters required.\n'
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if not is_valid_email(email):
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ret += 'Valid email must be provided.\n'
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ret += check_passwords(password, password_conf)
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return ret
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def verify_user(
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current_request: Request, verify_admin: bool
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) -> Tuple[Optional[HttpResponse], Optional[int]]:
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"""
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Return user id, if the provided token is valid and if user has admin
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rights if 'verify_admin' is True
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"""
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default_message = 'Provide a valid auth token.'
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auth_header = current_request.headers.get('Authorization')
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if not auth_header:
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return UnauthorizedErrorResponse(default_message), None
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auth_token = auth_header.split(' ')[1]
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resp = User.decode_auth_token(auth_token)
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if isinstance(resp, str):
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return UnauthorizedErrorResponse(resp), None
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user = User.query.filter_by(id=resp).first()
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if not user:
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return UnauthorizedErrorResponse(default_message), None
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if verify_admin and not is_admin(resp):
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return ForbiddenErrorResponse(), None
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return None, resp
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def can_view_workout(
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auth_user_id: int, workout_user_id: int
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) -> Optional[HttpResponse]:
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"""
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Return error response if user has no right to view workout
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"""
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if auth_user_id != workout_user_id:
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return ForbiddenErrorResponse()
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return None
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