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62 lines
2.7 KiB
62 lines
2.7 KiB
# -*- coding: utf-8 -*-
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from pynfe.utils import etree
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import subprocess
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class Assinatura(object):
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"""Classe abstrata responsavel por definir os metodos e logica das classes
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de assinatura digital."""
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certificado = None
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senha = None
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def __init__(self, certificado, senha):
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self.certificado = certificado
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self.senha = senha
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def assinar(self, xml):
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"""Efetua a assinatura da nota"""
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pass
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class AssinaturaA1(Assinatura):
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"""Classe responsavel por efetuar a assinatura do certificado
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digital no XML informado."""
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def assinar(self, xml, retorna_string=False):
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try:
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# No raiz do XML de saida
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tag = 'infNFe'; # tag que será assinada
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raiz = etree.Element('Signature', xmlns='http://www.w3.org/2000/09/xmldsig#')
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siginfo = etree.SubElement(raiz, 'SignedInfo')
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etree.SubElement(siginfo, 'CanonicalizationMethod', Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315')
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etree.SubElement(siginfo, 'SignatureMethod', Algorithm='http://www.w3.org/2000/09/xmldsig#rsa-sha1')
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if xml.findall('infNFe')[0].attrib['Id']:
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ref = etree.SubElement(siginfo, 'Reference', URI='#'+xml.findall('infNFe')[0].attrib['Id'])
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elif xml.findall('infEvento')[0].attrib['Id']:
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tag = 'infEvento'
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ref = etree.SubElement(siginfo, 'Reference', URI='#'+xml.findall('infEvento')[0].attrib['Id'])
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trans = etree.SubElement(ref, 'Transforms')
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etree.SubElement(trans, 'Transform', Algorithm='http://www.w3.org/2000/09/xmldsig#enveloped-signature')
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etree.SubElement(trans, 'Transform', Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315')
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etree.SubElement(ref, 'DigestMethod', Algorithm='http://www.w3.org/2000/09/xmldsig#sha1')
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etree.SubElement(ref, 'DigestValue')
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etree.SubElement(raiz, 'SignatureValue')
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keyinfo = etree.SubElement(raiz, 'KeyInfo')
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etree.SubElement(keyinfo, 'X509Data')
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xml.append(raiz)
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with open('testes.xml', 'w') as arquivo:
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arquivo.write(etree.tostring(xml, encoding="unicode", pretty_print=False))
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subprocess.call(['xmlsec1', '--sign', '--pkcs12', self.certificado, '--pwd', self.senha, '--crypto', 'openssl', '--output', 'funfa.xml', '--id-attr:Id', tag, 'testes.xml'])
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xml = etree.parse('funfa.xml').getroot()
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if retorna_string:
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return etree.tostring(xml, encoding="unicode", pretty_print=False)
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else:
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return xml
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except Exception as e:
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raise e
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