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"""Implementation of anonymizer functionality."""
import re
from string import punctuation, ascii_lowercase, ascii_uppercase
import random
class Anonymizer:
"""Class used to edit sentences based on options."""
def __init__(self, task_options):
self._method = task_options.get('method', 'delete')
self._mail_token = '[MAIL]'
self._user_token = '@[USER]'
def process(self):
if ctag == 'ign':
# sprawddz czy to nick a potem email
# sprawdz czy to nazwa własna jak mBank? nie wiem
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print()
@staticmethod
def _get_random_chatacter(upper=False):
return random.choice(ascii_uppercase) \
if upper else random.choice(ascii_lowercase)
def _generate_pseudo_email(self, email):
new_mail = []
it = iter(email)
top_domain_len = len(email) - email.rfind('.')
for char in it:
if char == '@':
new_mail.append(char)
break
elif char in punctuation:
new_mail.append(char)
else:
new_mail.append(self._get_random_chatacter(char.isupper()))
for char in it:
if char == '.':
if len(list(it)) == top_domain_len:
new_mail.append(char)
break
new_mail.append(char)
elif char in punctuation:
new_mail.append(char)
else:
new_mail.append(self._get_random_chatacter(char.isupper()))
for char in it:
new_mail.append(char)
return ''.join(new_mail)
def _generate_pseudo_user(self, user):
it = iter(user)
new_user = []
new_user.append(next(it))
for char in it:
if char in punctuation:
new_user.append(char)
else:
new_user.append(self._get_random_chatacter(char.isupper()))
return ''.join(new_user)
def _anonoymize_email(self, token):
"""Handles removal/changing of emails addresses."""
email_regex = r'[\w\.-]+@[\w\.-]+\.\w{2,4}'
if self._method == 'delete':
token = re.sub(email_regex, r'', token)
elif self._method == 'tag':
token = re.sub(email_regex, self._mail_token, token)
elif self._method == 'pseudo':
token = self._generate_pseudo_email(token)
return token
def _anonoymize_user(self, token):
"""Handles removal/change of users."""
mention_regex = r'\B\@([\w\-]+)'
if self._method == 'delete':
token = re.sub(mention_regex, r'', token)
elif self._method == 'tag':
token = re.sub(mention_regex, self._user_token, token)
elif self._method == 'pseudo':
token = self._generate_pseudo_user(token)
return token