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"""Module used to handle Users in Napps Server."""
import logging
import re
from getpass import getpass
from kytos.utils.client import UsersClient
LOG = logging.getLogger(__name__)
NAME_PATTERN = ("\t- insert only letters", r'[a-zA-Z][a-zA-Z]{2,}$')
USERNAME_PATTERN = ("\t- start with letter\n"
"\t- insert only numbers and letters",
r'[a-zA-Z][a-zA-Z0-9_]{2,}$')
PASSWORD_PATTERN = ("\t- insert only the caracters:"
" [letters, numbers, _, %, &, -, $]"
"\n\t- must be at least 6 characters",
r'[a-zA-Z0-9_%\-&$]{6,}$')
EMAIL_PATTERN = ("\t- follow the format: <login>@<domain>\n"
"\t\te.g. john@test.com", r'[^@]+@[^@]+\.[^@]+')
PHONE_PATTERN = ("\t- insert only numbers", r'\d*$')
class UsersManager:
"""Class used to handle users stored by Napps server."""
attributes = {
"username": {"field_name": "Username (Required)",
"pattern": USERNAME_PATTERN},
"first_name": {"field_name": "First Name (Required)",
"pattern": NAME_PATTERN},
"last_name": {"field_name": "Last Name", "pattern": NAME_PATTERN},
"password": {"field_name": "Password (Required)",
"pattern": PASSWORD_PATTERN},
"email": {"field_name": "Email (Required)", "pattern": EMAIL_PATTERN},
"phone": {"field_name": "Phone", "pattern": PHONE_PATTERN},
"city": {"field_name": "City", "pattern": NAME_PATTERN},
"state": {"field_name": "State", "pattern": NAME_PATTERN},
"country": {"field_name": "Country", "pattern": NAME_PATTERN}
}
required = ["username", "first_name", "password", "email"]
def __init__(self):
"""Instance a new UsersManager.
This method do not need parameters.
"""
self._users_client = UsersClient()
def register(self):
"""Register a new user.
This method will ask for user attributes and create the user in
Napps server, when All required fields is filled.
Returns:
result(string): Response of user registration process.
"""
user = {}
print('--------------------------------------------------------------')
print('Welcome to the user registration process.')
print('--------------------------------------------------------------')
print("To continue you must fill the following fields.")
for attribute, value in self.attributes.items():
is_required = attribute in self.required
field_name = value['field_name']
pattern = value['pattern']
if attribute != 'password':
user[attribute] = self.ask_question(field_name, pattern,
is_required)
else:
user[attribute] = self.ask_question(field_name, pattern,
password=True)
return self._users_client.register(user)
def ask_question(self, field_name, pattern=NAME_PATTERN, is_required=False,
password=False):
"""Ask a question and get the input values.
This method will validade the input values.
Args:
field_name(string): Field name used to ask for input value.
pattern(tuple): Pattern to validate the input value.
is_required(bool): Boolean value if the input value is required.
password(bool): Boolean value to get input password with mask.
Returns:
input_value(string): Input value validated.
"""
input_value = ""
question = ("Insert the field using the pattern below:"
"\n{}\n{}: ".format(pattern[0], field_name))
while not input_value:
input_value = getpass(question) if password else input(question)
if not (input_value or is_required):
break
if password:
confirm_password = getpass('Confirm your password: ')
if confirm_password != input_value:
print("Password does not match")
input_value = ""
if not self.valid_attribute(input_value, pattern[1]):
error_message = "The content must fit the pattern: {}\n"
print(error_message.format(pattern[0]))
input_value = ""
return input_value
@classmethod
def valid_attribute(cls, attribute, pattern):
"""Check the validity of the given 'attribute' using the given pattern.
Args:
attribute(string): String with the value of an attribute
pattern(string): Pattern used to validate the attribute value.
Returns:
pattern_found(bool): Return True if the pattern match.
"""
return attribute and re.match(pattern, attribute)
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