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token_manager.py
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token_manager.py
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"""
@token_manager Responsavel por lidar com tudo referente ao token.
Tudo relacionado ao token, desde pegar do arquivo, atualiza-lo e
salvar no arquivo novamente é definido aqui.
"""
import os
import sys
from configparser import ConfigParser
from getpass import getpass
from time import sleep
from splinter import Browser
from cryptography.fernet import Fernet
from scraper.page_scraper import Scraper
from selenium import webdriver
sys.path.append(
os.path.dirname(
os.path.dirname(os.path.realpath(__file__))
)
)
path = str(os.getcwd()) + '/scraper/'
def retrieve_token_file(file='config.ini'):
"""Recebe token do arquivo config.ini."""
try:
config = ConfigParser()
config.read_file(open(path + file))
if ('DEFAULT' in config.keys()):
if ('token' in config['DEFAULT'].keys()):
return(config['DEFAULT']['token'])
return 'Token with bad structure'
except Exception:
return False
def retrieve_password_file(file='config.ini'):
"""Recupera usuario e senha do arquivo config.ini."""
try:
config = ConfigParser()
config.read_file(open(path + file))
if ('USER' in config.keys()):
if {'user', 'password', 'utoken'} <= set(config['USER']):
return(
{
'user': config['USER']['user'],
'password': config['USER']['password'],
'utoken': config['USER']['utoken']
}
)
return False
except Exception:
return False
def update_token_file(file='config.ini', **kwargs):
"""Atualiza o token no arquivo config.ini."""
config = ConfigParser()
config.read(path + file)
if len(kwargs.keys()) > 0:
# Se kwargs tem todas as informaçoes para a senha.
if {'user', 'password', 'utoken'} == set(kwargs):
config['USER'] = kwargs
with open(path + file, 'w') as configfile:
config.write(configfile)
return 'User and password updated.'
# Se kwargs tem infromações para o token.
if ('token' in kwargs.keys()):
config['DEFAULT'] = {'token': kwargs['token']}
with open(path + file, 'w') as configfile:
config.write(configfile)
print('\x1b[04;01;32mNew token written successfuly.\x1b[0m\n')
return 'New token written successfuly.'
print('\x1b[04;01;31mFile not updated.\x1b[0m')
return 'File not updated.'
def generate_token_file(new_token=None, file='config.ini'):
"""
Gera um arquivo config.ini vazio caso não exista.
Caso exista, retona vazio.
"""
if(not retrieve_token_file(file)):
token_data = '[DEFAULT]\ntoken = \'' + str(new_token) + '\''
with open(path + file, 'w') as token_file:
token_file.write(token_data)
return [True, new_token]
else:
return [False, 'File already exists']
def collect_token_automatically(email, password, file='config.ini'):
"""
Loga no Facebook e atualiza o token.
Quando o usuario aceitar os termos do Facebook, essa função
logará no Facebook do usuário, pegará o token e salvará
no arquivo config.ini.
"""
# executable_path={'executable_path':os.environ.get('GOOGLE_CHROME_SHIM')}
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--headless')
chrome_options.add_argument('--remote-debbuging-port=9222')
chrome_options.binary_location = os.environ.get('GOOGLE_CHROME_SHIM', None)
with Browser('chrome', options=chrome_options) as browser:
# Visita o site de desenvolvedores do Facebook.
try:
browser.driver.set_window_size(1100, 800)
url = "https://developers.facebook.com/tools/explorer" \
"/?locale=en_US"
browser.visit(url)
# Procura o butão de login, caso nao encontre resulta em erro.
# Coneta no facebook.
browser.click_link_by_partial_href('login')
except Exception:
print("\x1b[04;01;31mCouldn't open Facebook Dev site\x1b[0m")
return 'Wasn`t possible to reach Facebook site. Are you online?'
# Clica no butão de login.
browser_login = browser.find_by_name('login')
# Loga com o email e senha do usuario.
try:
browser.fill('email', email)
browser.fill('pass', password)
browser_login.click()
# Requer a atualização do token.
browser_access = browser.find_by_text('Get Token')
browser_access.click()
except Exception:
print("\x1b[04;01;31m" + "Wrong User Login" + '\x1b[0m')
return 'Wrong Facebook user or password'
browser_accessus = browser.find_by_text(
'Get User Access Token')
browser_accessus.click()
browser_token = browser.find_by_text('Get Access Token')
browser_token.click()
# Acha e pega o novo token.
browser_token = browser.find_by_css(
'label[class="_2toh _36wp _55r1 _58ak"]')
browser_token = browser_token.first.html
browser_token = browser_token.split("value", 1)[1]
browser_token = browser_token.split("\"", 1)[1]
browser_token = browser_token.split("\"", 1)[0]
# atualiza o token no config.ini.
if Scraper(browser_token).check_valid_token():
update_token_file(file, **{'token': browser_token})
else:
print('Token not valid')
browser.quit()
return Scraper(browser_token)
def check_automatic_collection(file='config.ini'):
"""
Recupera o token automaticamente.
A partir do momento que config.ini tem o email e
senha do usuario, atualiza automaticamente o token.
"""
try:
# Tenta pegar o token.
email, password = get_user_password_decrypted(file)
token_is_valid = collect_token_automatically(email, password)
if(token_is_valid.check_valid_token()):
print("\x1b[04;01;32mSet Token Is Valid\x1b[0m\n")
print("\x1b[04;01;32mAuto Token function Completed\x1b[0m")
return True
print("\x1b[04;01;31mSet Token is not Valid\x1b[0m\n")
return False
except Exception as e:
# something went wrong getting the token
print("\x1b[04;01;31mAuto Token function Failed!\x1b[0m")
print("\x1b[04;01;31mException:", e, '\x1b[0m')
return 'Wrong user or password.'
def check_semi_automatic_collection(file='config.ini',
email=None,
password=None):
"""
Coleta o token mas necessita do input do usuario.
Maior parte da coleta é automatica, mas necessita
do email e senha do usuario como input.
"""
os.system("clear")
print('Email from your Facebook Account:')
if email is None:
email = input()
if password is None:
password = getpass()
update_token_file(file, **encrypt_user_password(email, password))
try:
# tTenta pegar o token.
token_is_valid = collect_token_automatically(email, password)
if(token_is_valid.check_valid_token()):
print("\x1b[04;01;32mSet Token Is Valid\x1b[0m\n")
else:
print("\x1b[04;01;31mSet Token is not Valid\x1b[0m\n")
print("\x1b[04;01;32mAuto Token function Completed\x1b[0m")
return True
except Exception as e:
# Alguma coisa deu errado na coleta.
print("\x1b[04;01;31mAuto Token function Failed!\x1b[0m")
print("\x1b[04;01;31mException:", e, '\x1b[0m')
return False
def collect_token(file='config.ini'):
"""
Coleta token manualmente para quem é a primeira vez.
Ou automaticamente caso o usuario ja tenha o feito.
"""
os.system("clear")
if retrieve_password_file(file):
return check_automatic_collection(file)
else:
return check_semi_automatic_collection(file)
def encrypt_user_password(user, password):
"""Encripta o email e a senha e salva no config.ini."""
key = Fernet.generate_key()
cipher_suite = Fernet(key)
user_byte = str.encode(user)
pass_byte = str.encode(password)
encrypted_user = cipher_suite.encrypt(user_byte)
encrypted_pass = cipher_suite.encrypt(pass_byte)
return({'user': encrypted_user, 'password': encrypted_pass, 'utoken': key})
def decrypt_user_password(**kwargs):
"""Descriptografa o email e senha do config.ini para um dado token."""
if {'user', 'password', 'utoken'} <= set(kwargs):
try:
kwargs['utoken'] = kwargs['utoken'][2:-1].encode()
kwargs['user'] = kwargs['user'][2:-1].encode()
kwargs['password'] = kwargs['password'][2:-1].encode()
except Exception as inst:
print(inst)
cipher_suite = Fernet((kwargs['utoken']))
user_d = str(cipher_suite.decrypt(kwargs['user']), 'utf-8')
pass_d = str(cipher_suite.decrypt(kwargs['password']), 'utf-8')
return [user_d, pass_d]
return False
def get_user_password_decrypted(file='config.ini'):
"""Descriptografa o usuario e senha do config.ini."""
try:
return decrypt_user_password(**retrieve_password_file(file))
except Exception as inst:
print("Token file not found.", inst)
return False
if __name__ == '__main__':
collect_token()