diff --git a/.gitignore b/.gitignore index f8b73e7..87f0ff9 100644 --- a/.gitignore +++ b/.gitignore @@ -1,4 +1,7 @@ # ---> Python + +conf.py + # Byte-compiled / optimized / DLL files __pycache__/ *.py[cod] diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..e15da1f --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,5 @@ +# Lista de cambios + +## v 0.1.0 +--- +* Primera versión funcional de la descarga masiva diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..fd46155 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + admin-cfdi + Copyright (C) 2016 Mauricio Baeza + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + admin-cfdi Copyright (C) 2016 Mauricio Baeza + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md index e0e0470..8e4d4ce 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,27 @@ # cfdi-descarga -Descarga masiva del SAT \ No newline at end of file +Descarga masiva del SAT + +## Software libre, no software "gratis" + + +En orden de preferencia + +Mauricio Baeza +``` +Euros +IBAN: BE60 9671 0556 5870 +SWIFT / BIC: TRWIBEB1XXX +``` + +* BCH: `qztd3l00xle5tffdqvh2snvadkuau2ml0uqm4n875d` +* FairCoin: `fJ7emvtyGfvcMuxk1nHSnS7gmeScdcZXL5` +* Monero: `43H43TpQKYdYcw2ZCnn2nbjDh3imNQg8RGYS4oP4p7Z8aeBHg6VpeaFfBoMzDTUUDdQBiGkiQUSydJB96m6MqiEuEeyoopQ` + +* ETH: `0x61a4f614a30ff686445751ed8328b82b77ecfc69` +* XRP: `rLSn6Z3T8uCxbcd1oxwfGQN1Fdn5CyGujK` Tag: `6643162` +* LTC: `MBcgQ3LQJA4W2wsXknTdm2fxRSysLaBJHS` +* BTC: `3FhiXcXmAesmQzrNEngjHFnvaJRhU1AGWV` + + +Mira la [documentación](https://git.cuates.net/elmau/cfdi-descarga/wiki/Inicio) diff --git a/VERSION b/VERSION new file mode 100644 index 0000000..6e8bf73 --- /dev/null +++ b/VERSION @@ -0,0 +1 @@ +0.1.0 diff --git a/requirements.txt b/requirements.txt new file mode 100644 index 0000000..68153fd --- /dev/null +++ b/requirements.txt @@ -0,0 +1,4 @@ +httpx +peewee +cryptography +lxml diff --git a/source/cfdi-descarga.py b/source/cfdi-descarga.py new file mode 100755 index 0000000..2c5d48c --- /dev/null +++ b/source/cfdi-descarga.py @@ -0,0 +1,75 @@ +#!/usr/bin/env python3 + +import argparse +from sat import util + + +def main(args): + if args.fiel_validar: + util.fiel_validar(args) + return + + if args.solicitar_descarga: + util.solicitar_descarga(args) + return + + if args.verificar_descarga: + util.verificar_descarga(args) + return + + if args.descargar_archivos: + util.descargar_archivos(args) + return + + util.descargar(args) + + return + + +def _process_command_line_arguments(): + now = util.today() + year = now.year + + parser = argparse.ArgumentParser(description='CFDI Descarga SAT') + + help = 'Valida la FIEL' + parser.add_argument('-fv', '--fiel-validar', help=help, + action='store_true', default=False, required=False) + help = 'Ruta al directorio con la FIEL' + parser.add_argument('-fd', '--fiel-dir', help=help, default='') + help = "Nombre de los archivos FIEL, el predeterminado es 'fiel'" + parser.add_argument('-fn', '--fiel-nombre', help=help, default='fiel') + + help = "Descargar por Tipo: t=todos(default), e=emitidas, r=recibidas" + parser.add_argument('-t', '--tipo', help=help, dest='type', default='t', choices=['t', 'e', 'r']) + help = "Año de la descarga entre 2014 y el año actual (predeterminado)." + parser.add_argument('-a', '--año', help=help, dest='year', default=year, type=int, choices=range(2014, year+1)) + help = "Mes de la descarga, el mes actual es el predeterminado" + parser.add_argument('-m', '--mes', help=help, dest='month', default=0, type=int, choices=range(13)) + help = "Día de la descarga, de forma predeterminada no se usa" + parser.add_argument('-d', '--dia', help=help, dest='day', default=0, type=int, choices=range(32)) + + help = 'Solicitar descarga' + parser.add_argument('-sd', '--solicitar-descarga', help=help, + action='store_true', default=False, required=False) + help = 'Verificar estatus de descarga' + parser.add_argument('-vd', '--verificar-descarga', help=help, + action='store_true', default=False, required=False) + help = 'Descargar archivos' + parser.add_argument('-da', '--descargar-archivos', help=help, + action='store_true', default=False, required=False) + help = 'ID de solicitud' + parser.add_argument('-id', '--id-solicitud', dest='id_request', help=help, default='') + help = 'ID archivo' + parser.add_argument('-ida', '--id-archivo', dest='id_file', help=help, default='') + help = 'Ruta de descarga de archivos' + parser.add_argument('-dd', '--directorio-descargas', dest='path_download', + help=help, default='') + + args = parser.parse_args() + return args + + +if __name__ == '__main__': + args = _process_command_line_arguments() + main(args) diff --git a/source/conf.py.ejemplo b/source/conf.py.ejemplo new file mode 100644 index 0000000..8f1fe03 --- /dev/null +++ b/source/conf.py.ejemplo @@ -0,0 +1,7 @@ +#!/usr/bin/env python + +DEBUG = False + +# ~ Este valor se usa para cifrar la FIEL +# ~ Si la cambias en producción, debes de validar de nuevo las FIELs +TOKEN = '' diff --git a/source/sat/cfdi_cert.py b/source/sat/cfdi_cert.py new file mode 100644 index 0000000..8623356 --- /dev/null +++ b/source/sat/cfdi_cert.py @@ -0,0 +1,226 @@ +#!/usr/bin/env python3 + +import argparse +import base64 +import datetime +import getpass +from pathlib import Path + +from cryptography.hazmat.backends import default_backend +from cryptography.hazmat.primitives import serialization +from cryptography import x509 +from cryptography.x509.oid import NameOID +from cryptography.x509.oid import ExtensionOID +from cryptography.hazmat.primitives import hashes +from cryptography.hazmat.primitives.asymmetric import padding + +from conf import TOKEN + + +class SATCertificate(object): + + def __init__(self, cer=b'', key=b'', password=''): + self._error = '' + self._init_values() + self._get_data_cer(cer) + self._get_data_key(key, password) + + def _init_values(self): + self._rfc = '' + self._serial_number = '' + self._serial_number2 = '' + self._not_before = None + self._not_after = None + self._is_fiel = False + self._are_couple = False + self._is_valid_time = False + self._cer_pem = '' + self._cer_txt = '' + self._key_enc = b'' + self._p12 = b'' + self._cer_modulus = 0 + self._key_modulus = 0 + self._issuer = '' + return + + def __str__(self): + msg = '\tRFC: {}\n'.format(self.rfc) + msg += '\tNo de Serie: {}\n'.format(self.serial_number) + msg += '\tVálido desde: {}\n'.format(self.not_before) + msg += '\tVálido hasta: {}\n'.format(self.not_after) + msg += '\tEs vigente: {}\n'.format(self.is_valid_time) + msg += '\tSon pareja: {}\n'.format(self.are_couple) + msg += '\tEs FIEL: {}\n'.format(self.is_fiel) + return msg + + def __bool__(self): + return self.is_valid + + def _get_hash(self): + digest = hashes.Hash(hashes.SHA512(), default_backend()) + digest.update(self._rfc.encode()) + digest.update(self._serial_number.encode()) + digest.update(TOKEN.encode()) + return digest.finalize() + + def _get_data_cer(self, cer): + obj = x509.load_der_x509_certificate(cer, default_backend()) + self._rfc = obj.subject.get_attributes_for_oid( + NameOID.X500_UNIQUE_IDENTIFIER)[0].value.split(' ')[0] + self._serial_number2 = obj.serial_number + self._serial_number = '{0:x}'.format(obj.serial_number)[1::2] + self._not_before = obj.not_valid_before + self._not_after = obj.not_valid_after + self._issuer = ','.join([i.rfc4514_string() for i in obj.issuer]) + + now = datetime.datetime.utcnow() + self._is_valid_time = (now > self.not_before) and (now < self.not_after) + if not self._is_valid_time: + msg = 'El certificado no es vigente' + self._error = msg + + self._is_fiel = obj.extensions.get_extension_for_oid( + ExtensionOID.KEY_USAGE).value.key_agreement + + self._cer_pem = obj.public_bytes(serialization.Encoding.PEM).decode() + self._cer_txt = ''.join(self._cer_pem.split('\n')[1:-2]) + self._cer_modulus = obj.public_key().public_numbers().n + + return + + def _get_data_key(self, key, password): + self._key_enc = key + if not key or not password: + return + + try: + obj = serialization.load_der_private_key( + key, password.encode(), default_backend()) + except ValueError: + msg = 'La contraseña es incorrecta' + self._error = msg + return + + p = self._get_hash() + self._key_enc = obj.private_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PrivateFormat.PKCS8, + encryption_algorithm=serialization.BestAvailableEncryption(p) + ) + + self._key_modulus = obj.public_key().public_numbers().n + self._are_couple = self._cer_modulus == self._key_modulus + if not self._are_couple: + msg = 'El CER y el KEY no son pareja' + self._error = msg + return + + def _get_key(self, password): + if not password: + password = self._get_hash() + private_key = serialization.load_pem_private_key( + self._key_enc, password=password, backend=default_backend()) + return private_key + + def _get_key_pem(self): + obj = self._get_key('') + key_pem = obj.private_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PrivateFormat.PKCS8, + encryption_algorithm=serialization.NoEncryption() + ) + return key_pem + + # Not work + def _get_p12(self): + obj = serialization.pkcs12.serialize_key_and_certificates('test', + self.key_pem, self.cer_pem, None, + encryption_algorithm=serialization.NoEncryption() + ) + return obj + + def sign(self, data, password=''): + private_key = self._get_key(password) + firma = private_key.sign(data, padding.PKCS1v15(), hashes.SHA256()) + return base64.b64encode(firma).decode() + + def sign_sha1(self, data, password=''): + private_key = self._get_key(password) + firma = private_key.sign(data, padding.PKCS1v15(), hashes.SHA1()) + return base64.b64encode(firma).decode() + + def sign_xml(self, tree): + import xmlsec + + node = xmlsec.tree.find_node(tree, xmlsec.constants.NodeSignature) + ctx = xmlsec.SignatureContext() + key = xmlsec.Key.from_memory(self.key_pem, xmlsec.constants.KeyDataFormatPem) + ctx.key = key + ctx.sign(node) + node = xmlsec.tree.find_node(tree, 'X509Certificate') + node.text = self.cer_txt + return tree + + @property + def rfc(self): + return self._rfc + + @property + def serial_number(self): + return self._serial_number + + @property + def serial_number2(self): + return self._serial_number2 + + @property + def not_before(self): + return self._not_before + + @property + def not_after(self): + return self._not_after + + @property + def is_fiel(self): + return self._is_fiel + + @property + def are_couple(self): + return self._are_couple + + @property + def is_valid(self): + return not bool(self.error) + + @property + def is_valid_time(self): + return self._is_valid_time + + @property + def cer_pem(self): + return self._cer_pem.encode() + + @property + def cer_txt(self): + return self._cer_txt + + @property + def key_pem(self): + return self._get_key_pem() + + @property + def key_enc(self): + return self._key_enc + + @property + def issuer(self): + return self._issuer + + @property + def p12(self): + return self._get_p12() + + @property + def error(self): + return self._error diff --git a/source/sat/sat_web.py b/source/sat/sat_web.py new file mode 100644 index 0000000..2df7737 --- /dev/null +++ b/source/sat/sat_web.py @@ -0,0 +1,424 @@ +#!/usr/bin/env python3 + +import base64 +import hashlib +import uuid +from datetime import datetime, timedelta + +import httpx +import lxml.etree as ET + + +class SATWebService(): + BASE = 'https://cfdidescargamasivasolicitud.clouda.sat.gob.mx' + URL = { + 'AUTH': f'{BASE}/Autenticacion/Autenticacion.svc', + 'REQ': f'{BASE}/SolicitaDescargaService.svc', + 'VSD': f'{BASE}/VerificaSolicitudDescargaService.svc', + 'DOWN': 'https://cfdidescargamasiva.clouda.sat.gob.mx/DescargaMasivaService.svc', + } + XMLNS = 'http://DescargaMasivaTerceros.gob.mx' + XMLNS2 = 'http://DescargaMasivaTerceros.sat.gob.mx' + ACTIONS = { + 'AUTH': f'{XMLNS}/IAutenticacion/Autentica', + 'REQ': f'{XMLNS2}/ISolicitaDescargaService/SolicitaDescarga', + 'VSD': f'{XMLNS2}/IVerificaSolicitudDescargaService/VerificaSolicitudDescarga', + 'DOWN': f'{XMLNS2}/IDescargaMasivaTercerosService/Descargar', + } + HEADERS = { + 'Content-type': 'text/xml;charset="utf-8"', + 'Accept': 'text/xml', + 'Cache-Control': 'no-cache', + } + NS = { + 's': 'http://schemas.xmlsoap.org/soap/envelope/', + 'u': 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd', + 'o': 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd', + 'des': 'http://DescargaMasivaTerceros.sat.gob.mx', + 'xd': 'http://www.w3.org/2000/09/xmldsig#', + } + NS_RESULT = {'s': NS['s'], None: XMLNS} + NS_RESULT2 = {'s': NS['s'], None: XMLNS2} + + def __init__(self, cert): + self._cert = cert + self._error = '' + self._token = self._get_token() + + @property + def is_authenticate(self): + return bool(self._token) + + @property + def error(self): + return self._error + + def _get_data_auth(self): + NSMAP = {'s': self.NS['s'], 'u': self.NS['u']} + FORMAT = '%Y-%m-%dT%H:%M:%S.%fZ' + UID = str(uuid.uuid4()) + + now = datetime.utcnow() + date_created = now.strftime(FORMAT) + date_expires = (now + timedelta(seconds=300)).strftime(FORMAT) + + node_name = f"{{{self.NS['s']}}}Envelope" + root = ET.Element(node_name, nsmap=NSMAP) + + node_name = f"{{{self.NS['s']}}}Header" + header = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['o']}}}Security" + nsmap = {'o': self.NS['o']} + attr_name = f"{{{self.NS['s']}}}mustUnderstand" + attr = {attr_name: '1'} + security = ET.SubElement(header, node_name, attr, nsmap=nsmap) + + node_name = f"{{{self.NS['u']}}}Timestamp" + attr_name = f"{{{self.NS['u']}}}Id" + attr = {attr_name: '_0'} + timestamp = ET.SubElement(security, node_name, attr) + node_name = f"{{{self.NS['u']}}}Created" + ET.SubElement(timestamp, node_name).text = date_created + node_name = f"{{{self.NS['u']}}}Expires" + ET.SubElement(timestamp, node_name).text = date_expires + + node_name = f"{{{self.NS['o']}}}BinarySecurityToken" + attr = { + f"{{{self.NS['u']}}}Id": UID, + 'ValueType': 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3', + 'EncodingType': 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary' + } + ET.SubElement(security, node_name, attr).text = self._cert.cer_txt + + nsmap = {None: 'http://www.w3.org/2000/09/xmldsig#'} + signature = ET.SubElement(security, 'Signature', nsmap=nsmap) + signedinfo = ET.SubElement(signature, 'SignedInfo') + attr1 = {'Algorithm': 'http://www.w3.org/2001/10/xml-exc-c14n#'} + ET.SubElement(signedinfo, 'CanonicalizationMethod', attr1) + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#rsa-sha1'} + ET.SubElement(signedinfo, 'SignatureMethod', attr) + + attr = {'URI': '#_0'} + reference = ET.SubElement(signedinfo, 'Reference', attr) + transforms = ET.SubElement(reference, 'Transforms') + ET.SubElement(transforms, 'Transform', attr1) + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#sha1'} + ET.SubElement(reference, 'DigestMethod', attr) + + dvalue = ET.tostring(timestamp, method='c14n', exclusive=1) + dvalue = base64.b64encode(hashlib.new('sha1', dvalue).digest()) + ET.SubElement(reference, 'DigestValue').text = dvalue + + signature_value = ET.tostring(signedinfo, method='c14n', exclusive=1) + signature_value = self._cert.sign_sha1(signature_value) + ET.SubElement(signature, 'SignatureValue').text = signature_value + keyinfo = ET.SubElement(signature, 'KeyInfo') + + node_name = f"{{{self.NS['o']}}}SecurityTokenReference" + security_token = ET.SubElement(keyinfo, node_name) + + node_name = f"{{{self.NS['o']}}}Reference" + attr = { + 'ValueType': 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3', + 'URI': f'#{UID}', + } + ET.SubElement(security_token, node_name, attr) + + node_name = f"{{{self.NS['s']}}}Body" + body = ET.SubElement(root, node_name) + ET.SubElement(body, 'Autentica', nsmap=self.NS_RESULT) + + # ~ soap = ET.tostring(root, pretty_print=True, encoding='utf-8') + soap = ET.tostring(root) + + return soap + + def _get_token(self): + headers = self.HEADERS.copy() + headers['SOAPAction'] = self.ACTIONS['AUTH'] + data = self._get_data_auth() + + response = httpx.post(self.URL['AUTH'], data=data, headers=headers) + if response.status_code != httpx.codes.OK: + self._error = f'Status: {response.status_code} - {response.text}' + return + + result = ET.fromstring(response.text) + nsmap = {'s': self.NS['s'], None: self.XMLNS} + node_name = 's:Body/AutenticaResponse/AutenticaResult' + token = result.find(node_name, namespaces=nsmap).text + + return token + + def _get_data_req(self, args): + NSMAP = {'s': self.NS['s'], 'des': self.NS['des'], 'xd': self.NS['xd']} + FORMAT = '%Y-%m-%dT%H:%M:%S' + + date_start = args['date_start'] + date_end = args['date_end'] + + node_name = f"{{{self.NS['s']}}}Envelope" + root = ET.Element(node_name, nsmap=NSMAP) + + node_name = f"{{{self.NS['s']}}}Header" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['s']}}}Body" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['des']}}}SolicitaDescarga" + request_down = ET.SubElement(body, node_name) + + node_name = f"{{{self.NS['des']}}}solicitud" + attr = { + 'RfcSolicitante': self._cert.rfc, + 'FechaFinal': date_end.strftime(FORMAT), + 'FechaInicial': date_start.strftime(FORMAT), + 'TipoSolicitud': 'CFDI', + args['rfc']: self._cert.rfc, + } + request = ET.SubElement(request_down, node_name, attr) + + nsmap = {None: self.NS['xd']} + signature = ET.SubElement(request, 'Signature', nsmap=nsmap) + signed_info = ET.SubElement(signature, 'SignedInfo', nsmap=nsmap) + + node_name = 'CanonicalizationMethod' + attr1 = {'Algorithm': 'http://www.w3.org/2001/10/xml-exc-c14n#'} + canonicalization = ET.SubElement(signed_info, node_name, attr1) + + node_name = 'SignatureMethod' + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#rsa-sha1'} + signature_method = ET.SubElement(signed_info, node_name, attr) + + attr = {'URI': '#_0'} + reference = ET.SubElement(signed_info, 'Reference', attr) + transforms = ET.SubElement(reference, 'Transforms') + ET.SubElement(transforms, 'Transform', attr1) + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#sha1'} + ET.SubElement(reference, 'DigestMethod', attr) + digest_value = ET.SubElement(reference, 'DigestValue') + signature_value = ET.SubElement(signature, 'SignatureValue') + + key_info = ET.SubElement(signature, 'KeyInfo') + x_data = ET.SubElement(key_info, 'X509Data') + x_issuer_serial = ET.SubElement(x_data, 'X509IssuerSerial') + x_issuer = ET.SubElement(x_issuer_serial, 'X509IssuerName') + x_serial_number = ET.SubElement(x_issuer_serial, 'X509SerialNumber') + x_cert = ET.SubElement(x_data, 'X509Certificate') + + dvalue = ET.tostring(request_down, method='c14n', exclusive=1) + dvalue = base64.b64encode(hashlib.new('sha1', dvalue).digest()) + digest_value.text = dvalue + + sign = ET.tostring(signed_info, method='c14n', exclusive=1) + sign = self._cert.sign_sha1(sign) + signature_value.text = sign + + x_issuer.text = self._cert.issuer + x_serial_number.text = str(self._cert.serial_number2) + x_cert.text = self._cert.cer_txt + + # ~ soap = ET.tostring(root, pretty_print=True, encoding='utf-8') + soap = ET.tostring(root) + + return soap + + def request_download(self, args): + headers = self.HEADERS.copy() + headers['SOAPAction'] = self.ACTIONS['REQ'] + headers['Authorization'] = f'WRAP access_token="{self._token}"' + data = self._get_data_req(args) + + response = httpx.post(self.URL['REQ'], data=data, headers=headers) + if response.status_code != httpx.codes.OK: + self._error = f'Status: {response.status_code} - {response.text}' + return + + result = ET.fromstring(response.text) + node_name = 's:Body/SolicitaDescargaResponse/SolicitaDescargaResult' + node = result.find(node_name, namespaces=self.NS_RESULT2) + data = dict(node.attrib) + + return data + + def _get_data_verify(self, args): + NSMAP = {'s': self.NS['s'], 'des': self.NS['des'], 'xd': self.NS['xd']} + + node_name = f"{{{self.NS['s']}}}Envelope" + root = ET.Element(node_name, nsmap=NSMAP) + + node_name = f"{{{self.NS['s']}}}Header" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['s']}}}Body" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['des']}}}VerificaSolicitudDescarga" + verify_download = ET.SubElement(body, node_name) + + node_name = f"{{{self.NS['des']}}}solicitud" + attr = { + 'IdSolicitud': args['id'], + 'RfcSolicitante': self._cert.rfc, + } + request = ET.SubElement(verify_download, node_name, attr) + + nsmap = {None: self.NS['xd']} + signature = ET.SubElement(request, 'Signature', nsmap=nsmap) + signed_info = ET.SubElement(signature, 'SignedInfo', nsmap=nsmap) + + node_name = 'CanonicalizationMethod' + attr1 = {'Algorithm': 'http://www.w3.org/2001/10/xml-exc-c14n#'} + canonicalization = ET.SubElement(signed_info, node_name, attr1) + + node_name = 'SignatureMethod' + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#rsa-sha1'} + signature_method = ET.SubElement(signed_info, node_name, attr) + + attr = {'URI': '#_0'} + reference = ET.SubElement(signed_info, 'Reference', attr) + transforms = ET.SubElement(reference, 'Transforms') + ET.SubElement(transforms, 'Transform', attr1) + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#sha1'} + ET.SubElement(reference, 'DigestMethod', attr) + digest_value = ET.SubElement(reference, 'DigestValue') + signature_value = ET.SubElement(signature, 'SignatureValue') + + key_info = ET.SubElement(signature, 'KeyInfo') + x_data = ET.SubElement(key_info, 'X509Data') + x_issuer_serial = ET.SubElement(x_data, 'X509IssuerSerial') + x_issuer = ET.SubElement(x_issuer_serial, 'X509IssuerName') + x_serial_number = ET.SubElement(x_issuer_serial, 'X509SerialNumber') + x_cert = ET.SubElement(x_data, 'X509Certificate') + + dvalue = ET.tostring(verify_download, method='c14n', exclusive=1) + dvalue = base64.b64encode(hashlib.new('sha1', dvalue).digest()) + digest_value.text = dvalue + + sign = ET.tostring(signed_info, method='c14n', exclusive=1) + sign = self._cert.sign_sha1(sign) + signature_value.text = sign + + x_issuer.text = self._cert.issuer + x_serial_number.text = str(self._cert.serial_number2) + x_cert.text = self._cert.cer_txt + + # ~ soap = ET.tostring(root, pretty_print=True, encoding='utf-8') + soap = ET.tostring(root) + + return soap + + def verify(self, args): + headers = self.HEADERS.copy() + headers['SOAPAction'] = self.ACTIONS['VSD'] + headers['Authorization'] = f'WRAP access_token="{self._token}"' + data = self._get_data_verify(args) + + response = httpx.post(self.URL['VSD'], data=data, headers=headers) + if response.status_code != httpx.codes.OK: + self._error = f'Status: {response.status_code} - {response.text}' + return + + result = ET.fromstring(response.text) + node_name = 's:Body/VerificaSolicitudDescargaResponse/VerificaSolicitudDescargaResult' + node = result.find(node_name, namespaces=self.NS_RESULT2) + data = dict(node.attrib) + data['files'] = [n.text for n in node] + + return data + + def _get_data_download(self, args): + NSMAP = {'s': self.NS['s'], 'des': self.NS['des'], 'xd': self.NS['xd']} + + node_name = f"{{{self.NS['s']}}}Envelope" + root = ET.Element(node_name, nsmap=NSMAP) + + node_name = f"{{{self.NS['s']}}}Header" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['s']}}}Body" + body = ET.SubElement(root, node_name) + + node_name = f"{{{self.NS['des']}}}PeticionDescargaMasivaTercerosEntrada" + request_download = ET.SubElement(body, node_name) + + node_name = f"{{{self.NS['des']}}}peticionDescarga" + attr = { + 'IdPaquete': args['id_file'], + 'RfcSolicitante': self._cert.rfc, + } + request = ET.SubElement(request_download, node_name, attr) + + nsmap = {None: self.NS['xd']} + signature = ET.SubElement(request, 'Signature', nsmap=nsmap) + signed_info = ET.SubElement(signature, 'SignedInfo', nsmap=nsmap) + + node_name = 'CanonicalizationMethod' + attr1 = {'Algorithm': 'http://www.w3.org/2001/10/xml-exc-c14n#'} + canonicalization = ET.SubElement(signed_info, node_name, attr1) + + node_name = 'SignatureMethod' + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#rsa-sha1'} + signature_method = ET.SubElement(signed_info, node_name, attr) + + attr = {'URI': '#_0'} + reference = ET.SubElement(signed_info, 'Reference', attr) + transforms = ET.SubElement(reference, 'Transforms') + ET.SubElement(transforms, 'Transform', attr1) + attr = {'Algorithm': 'http://www.w3.org/2000/09/xmldsig#sha1'} + ET.SubElement(reference, 'DigestMethod', attr) + digest_value = ET.SubElement(reference, 'DigestValue') + signature_value = ET.SubElement(signature, 'SignatureValue') + + key_info = ET.SubElement(signature, 'KeyInfo') + x_data = ET.SubElement(key_info, 'X509Data') + x_issuer_serial = ET.SubElement(x_data, 'X509IssuerSerial') + x_issuer = ET.SubElement(x_issuer_serial, 'X509IssuerName') + x_serial_number = ET.SubElement(x_issuer_serial, 'X509SerialNumber') + x_cert = ET.SubElement(x_data, 'X509Certificate') + + dvalue = ET.tostring(request_download, method='c14n', exclusive=1) + dvalue = base64.b64encode(hashlib.new('sha1', dvalue).digest()) + digest_value.text = dvalue + + sign = ET.tostring(request_download, method='c14n', exclusive=1) + sign = self._cert.sign_sha1(sign) + signature_value.text = sign + + x_issuer.text = self._cert.issuer + x_serial_number.text = str(self._cert.serial_number2) + x_cert.text = self._cert.cer_txt + + # ~ soap = ET.tostring(root, pretty_print=True, encoding='utf-8') + soap = ET.tostring(root) + + return soap + + def download(self, args): + headers = self.HEADERS.copy() + headers['SOAPAction'] = self.ACTIONS['DOWN'] + headers['Authorization'] = f'WRAP access_token="{self._token}"' + data = self._get_data_download(args) + + response = httpx.post(self.URL['DOWN'], data=data, headers=headers) + if response.status_code != httpx.codes.OK: + self._error = f'Status: {response.status_code} - {response.text}' + return + + result = ET.fromstring(response.text, parser=ET.XMLParser(huge_tree=True)) + namespaces = self.NS_RESULT2.copy() + namespaces['h'] = 'http://DescargaMasivaTerceros.sat.gob.mx' + + respuesta = result.find('s:Header/h:respuesta', namespaces=namespaces) + data = dict(respuesta.attrib) + + node_name = 's:Body/RespuestaDescargaMasivaTercerosSalida/Paquete' + node = result.find(node_name, namespaces=self.NS_RESULT2) + archivo = None + if not node.text is None: + archivo = base64.b64decode(node.text) + + return data, archivo + diff --git a/source/sat/util.py b/source/sat/util.py new file mode 100644 index 0000000..40e4464 --- /dev/null +++ b/source/sat/util.py @@ -0,0 +1,393 @@ +#!/usr/bin/env python3 + +import getpass +import uuid +from calendar import monthrange +from datetime import datetime +from pathlib import Path +from time import sleep + +from .cfdi_cert import SATCertificate +from .sat_web import SATWebService +from settings import log + + +def today(): + return datetime.today() + + +def validate_date(year, month, day): + try: + datetime(year, month, day, 0, 0, 0) + result = True + except ValueError: + result = False + return result + + +def is_dir(path): + return Path(path).is_dir() + + +def join(*paths): + return Path(paths[0]).joinpath(*paths[1:]) + + +def _validate_fiel_args(args): + fiel_path = args.fiel_dir + fiel_name = args.fiel_nombre + + if not fiel_path: + msg = 'El directorio con la FIEL es requerido' + log.error(msg) + return False, {} + + if not is_dir(fiel_path): + msg = f'La ruta no existe o no es un directorio. \nRuta: {fiel_path}' + log.error(msg) + return False, {} + + path_cer = join(fiel_path, f'{fiel_name}.cer') + path_key = join(fiel_path, f'{fiel_name}.key') + path_enc = join(fiel_path, f'{fiel_name}.enc') + + if not path_cer.is_file(): + msg = f'No se encontró el archivo CER. \nRuta: {path_cer}' + log.error(msg) + return False, {} + + if not path_key.is_file(): + msg = f'No se encontró el archivo KEY. \nRuta: {path_cer}' + log.error(msg) + return False, {} + + data = { + 'path_cer': path_cer, + 'path_key': path_key, + 'path_enc': path_enc, + } + return True, data + + +def fiel_validar(args): + result, data = _validate_fiel_args(args) + if not result: + return + + password = getpass.getpass('Introduce la contraseña del archivo KEY: ') + if not password: + msg = 'La contraseña es requerida para validar la FIEL' + log.error(msg) + return + + cer = data['path_cer'].read_bytes() + key = data['path_key'].read_bytes() + cert = SATCertificate(cer, key, password) + + if cert.error: + msg = f'{cert.error}\n\nNo podrás conectarte el SAT.' + log.error(msg) + return + + if not cert.is_fiel: + msg = 'El certificado no es FIEL' + log.error(msg) + return + + data['path_enc'].write_bytes(cert.key_enc) + + msg = 'Los datos del certificado son:' + log.info(msg) + log.info(f'\n{cert}') + msg = 'Ya puedes descargar del SAT' + log.info(msg) + + return + + +def base_datos(): + db.create_tables() + return + + +def _validate_requests_args(args): + result, data = _validate_fiel_args(args) + if not result: + return False, {} + + if not data['path_enc'].is_file(): + msg = f"No se encontró la FIEL encriptada. \nRuta: {data['path_enc']}" + log.error(msg) + return False, {} + + cer = data['path_cer'].read_bytes() + key = data['path_enc'].read_bytes() + cert = SATCertificate(cer, key) + + if not cert.is_valid_time: + msg = 'La FIEL no es vigente' + log.error(msg) + return False, {} + + data['cert'] = cert + data['type'] = args.type + data['year'] = args.year + data['month'] = args.month + data['day'] = args.day + + if data['day']: + if not validate_date(data['year'], data['month'], data['day']): + msg = 'Fecha inválida' + log.error(msg) + return False, {} + + now = today() + + month1 = month2 = data['month'] + if month1 == 0: + month1 = 1 + month2 = 12 + + if data['day']: + day1 = day2 = data['day'] + else: + day1 = 1 + day2 = monthrange(data['year'], month2)[1] + + data['date_start'] = datetime(data['year'], month1, day1) + data['date_end'] = datetime(data['year'], month2, day2, 23, 59, 59) + + return True, data + + +def _validate_verificar_args(args): + result, data = _validate_fiel_args(args) + if not result: + return False, {} + + if not data['path_enc'].is_file(): + msg = f"No se encontró la FIEL encriptada. \nRuta: {data['path_enc']}" + log.error(msg) + return False, {} + + cer = data['path_cer'].read_bytes() + key = data['path_enc'].read_bytes() + cert = SATCertificate(cer, key) + + if not cert.is_valid_time: + msg = 'La FIEL no es vigente' + log.error(msg) + return False, {} + + if not args.id_request: + msg = 'El ID de solicitud de descarga es requerido' + log.error(msg) + return False, {} + + data['cert'] = cert + data['id'] = args.id_request + + return True, data + + +def _validate_download_args(args): + result, data = _validate_fiel_args(args) + if not result: + return False, {} + + if not data['path_enc'].is_file(): + msg = f"No se encontró la FIEL encriptada. \nRuta: {data['path_enc']}" + log.error(msg) + return False, {} + + cer = data['path_cer'].read_bytes() + key = data['path_enc'].read_bytes() + cert = SATCertificate(cer, key) + + if not cert.is_valid_time: + msg = 'La FIEL no es vigente' + log.error(msg) + return False, {} + + if not args.id_request and not args.id_file: + msg = 'El ID de solicitud o ID de archivo de descarga es requerido' + log.error(msg) + return False, {} + + if not args.path_download: + msg = 'La ruta de descarga es requerida [-dd]' + log.error(msg) + return False, {} + + data['cert'] = cert + data['id'] = args.id_request + data['id_file'] = args.id_file + data['path'] = args.path_download + + return True, data + + +def _request_download(sat, data, key): + data['rfc'] = key + result = sat.request_download(data) + # ~ Usando un simple print, permite capturarlo desde cualquier lenguaje + print(result) + return result + + +def solicitar_descarga(args): + result, data = _validate_requests_args(args) + if not result: + return + + sat = SATWebService(data['cert']) + if not sat.is_authenticate: + log.error(sat.error) + return + + if data['type'] == 'e': + _request_download(sat, data, 'RfcEmisor') + elif data['type'] == 'r': + _request_download(sat, data, 'RfcReceptor') + else: + _request_download(sat, data, 'RfcEmisor') + _request_download(sat, data, 'RfcReceptor') + + return + + +def verificar_descarga(args): + result, data = _validate_verificar_args(args) + if not result: + return + + sat = SATWebService(data['cert']) + + if not sat.is_authenticate: + log.error(sat.error) + return + + result = sat.verify(data) + # ~ Usando un simple print, permite capturarlo desde cualquier lenguaje + print(result) + + return + + +def descargar_archivos(args): + result, data = _validate_download_args(args) + if not result: + return + + sat = SATWebService(data['cert']) + + if not sat.is_authenticate: + log.error(sat.error) + return + + if args.id_file: + files = (args.id_file,) + else: + result = sat.verify(data) + files = result['files'] + + for f in files: + data['id_file'] = f + result, file_data = sat.download(data) + if file_data is None: + log.debug(result) + else: + path_zip = join(data['path'], f'{f}.zip') + msg = f'Guardando: {path_zip}' + log.info(msg) + with open(path_zip, 'wb') as f: + f.write(file_data) + msg = f's\tArchivo guardado correctamente' + log.info(msg) + return + + +def _validate_args(args): + result, data = _validate_requests_args(args) + if not result: + return False, {} + + if not args.path_download: + msg = 'La ruta de descarga es requerida [-dd]' + log.error(msg) + return False, {} + + data['path'] = args.path_download + + return True, data + + +def _download(sat, data, key): + OK = '5000' + + result = _request_download(sat, data, key) + if result['CodEstatus'] != OK: + log.error(result) + return + + data['id'] = result['IdSolicitud'] + + msg = f"Descarga aceptada con el ID: {data['id']}\n\nEsperando un minuto para verificar la descarga..." + log.info(msg) + for i in range(60, 0, -1): + print(f'\r{i}', end=' ') + sleep(1) + + while True: + result = sat.verify(data) + if result['EstadoSolicitud'] in ('1', '2'): + msg = 'Esperando un minuto más para volver a verificar...' + log.info(msg) + for i in range(60, 0, -1): + print(f'\r{i}', end=' ') + sleep(1) + continue + + if result['EstadoSolicitud'] == '3': + for f in result['files']: + data['id_file'] = f + result, file_data = sat.download(data) + if file_data is None: + log.debug(result) + else: + path_zip = join(data['path'], f'{f}.zip') + msg = f'Guardando: {path_zip}' + log.info(msg) + with open(path_zip, 'wb') as f: + f.write(file_data) + msg = f'\tArchivo guardado correctamente' + log.info(msg) + break + + log.error(result) + break + + return + + +def descargar(args): + result, data = _validate_args(args) + if not result: + return + + sat = SATWebService(data['cert']) + + if not sat.is_authenticate: + log.error(sat.error) + return + + if data['type'] == 'e': + _download(sat, data, 'RfcEmisor') + elif data['type'] == 'r': + _download(sat, data, 'RfcReceptor') + else: + _download(sat, data, 'RfcEmisor') + _download(sat, data, 'RfcReceptor') + + return + diff --git a/source/settings.py b/source/settings.py new file mode 100644 index 0000000..7b2d006 --- /dev/null +++ b/source/settings.py @@ -0,0 +1,14 @@ +#!/usr/bin/env python3 + +import logging +from conf import DEBUG + + +LOG_FORMAT = '%(asctime)s - %(levelname)s - %(message)s' +LOG_DATE = '%d/%m/%Y %H:%M:%S' +logging.addLevelName(logging.ERROR, '\033[1;41mERROR\033[1;0m') +logging.addLevelName(logging.DEBUG, '\x1b[33mDEBUG\033[1;0m') +logging.addLevelName(logging.INFO, '\x1b[32mINFO\033[1;0m') +logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT, datefmt=LOG_DATE) +log = logging.getLogger(__name__) +