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# -*- coding: utf-8 -*-
import base64
import hashlib
from pynfe.utils.flags import VERSAO_QRCODE
from pynfe.utils.webservices import NFCE
class Danfe(object):
""" Classe abstrata para a geração do Danfe. """
pass
class DanfeNfce(Danfe):
""" Classe para geração de Danfe para Nota Fiscal de Consumidor Eletrônica (NFC-e). """
def gerar_qrcode(self, token, csc, xml, uf):
# Procura atributos no xml
nfe = xml[1][0][0][2]
chave = nfe[0].attrib['Id'].replace('NFe','')
data = nfe[0][0][7].text.encode()
tpamb = nfe[0][0][14].text
cpf = nfe[0][2][0].text
total = nfe[0][4][0][14].text
icms = nfe[0][4][0][1].text
digest = nfe[1][0][2][2].text.encode()
data = base64.b16encode(data).decode()
digest = base64.b16encode(digest).decode()
url = 'chNFe={}&nVersao={}&tpAmb={}&cDest={}&dhEmi={}&vNF={}&vICMS={}&digVal={}&cIdToken={}'.format(
chave, VERSAO_QRCODE, tpamb, cpf, data.lower(), total, icms, digest.lower(), token)
url_hash = hashlib.sha1(url.encode()+csc.encode()).digest()
url_hash = base64.b16encode(url_hash).decode()
url = url + '&cHashQRCode=' + url_hash.upper()
return NFCE[uf.upper()]['QR'] + url