old_contents: from re import search
  from flask import g
  from flask_restplus import abort
  from flask_httpauth import HTTPBasicAuth
  from app.models.user import User
  from instance.config import Config
  
  auth = HTTPBasicAuth()
  
  
  def validate_email(email):
  	''' Method to check that a valid email is provided '''
      email_re = r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)"
      return True if search(email_re, email) else False
  
  @auth.verify_token
  def verify_token(token=None):
      ''' Method to verify token '''
      token = request.headers.get('x-access-token')
      user_id = User.verify_authentication_token(token)
      if user_id:
          g.current_user = User.query.filter_by(id=user.id).first()
          return True
      return False
  
new_contents: from re import search
  from flask import g, request
  from flask_httpauth import HTTPTokenAuth
  from app.models.user import User
  
  auth = HTTPTokenAuth(scheme='Token')
  
  
  def validate_email(email):
      ''' Method to check that a valid email is provided '''
      email_re = r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)"
      return True if search(email_re, email) else False
  
  @auth.verify_token
  def verify_token(token=None):
      ''' Method to verify token '''
      token = request.headers.get('x-access-token')
      user_id = User.verify_authentication_token(token)
      if user_id:
          g.current_user = User.query.filter_by(id=user_id).first()
          return True
      return False
  
subject: Implement HTTPTokenAuth Store user data in global