88 lines
3.3 KiB
Python
88 lines
3.3 KiB
Python
# barbacompta - invoicing for dummies
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# Copyright (C) 2010-2012 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import os
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import subprocess
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import tempfile
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import facturx
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from django.template.loader import render_to_string
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logger = logging.getLogger(__name__)
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GS_INCLUDE_DIR = os.path.join(os.path.dirname(__file__), 'gs-includes')
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DEFAULT_ICC_PROFILE = os.path.join(GS_INCLUDE_DIR, 'compatibleWithAdobeRGB1998.icc')
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def to_pdfa(pdf_bytes: bytes, icc_profile: str = DEFAULT_ICC_PROFILE):
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with tempfile.NamedTemporaryFile() as output_fd, tempfile.NamedTemporaryFile() as input_fd:
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input_fd.write(pdf_bytes)
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input_fd.flush()
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args = [
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'gs',
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'-dPDFA',
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'-dBATCH',
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'-dNOPAUSE',
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'-sICCProfile=' + icc_profile,
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'-sProcessColorModel=DeviceCMYK',
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'-sDEVICE=pdfwrite',
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'-dPDFACompatibilityPolicy=2',
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# ghostscript needs percent character in output filename to be quoted
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'-sOutputFile=' + output_fd.name.replace('%', '%%'),
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# give right to GS of reading local PDF_def.ps and ICC profile
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'-I' + GS_INCLUDE_DIR,
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'PDFA_def.ps',
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input_fd.name,
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]
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logger.debug('converting to PDF/A, calling %s', args)
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completed = subprocess.run(args, capture_output=True, text=True, check=False)
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logger.debug('ghostscript result %s', completed)
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if completed.returncode != 0:
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logger.error('ghostcript call failed %s', completed)
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completed.check_returncode()
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return output_fd.read()
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def add_facturx_from_facture(facture):
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pdf_bytes = facture.pdf()
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facturx_context = {
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'numero_de_facture': facture.code(),
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'type_facture': '380',
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'date_emission': facture.emission,
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'chorus_service_code': facture.client.chorus_structure.service_code,
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'vendeur': 'Entr\'ouvert',
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'vendeur_siret': '44317013900036',
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'vendeur_tvai': 'FR09491081899',
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'client_siret': facture.client.chorus_structure.siret,
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'client_name': facture.client.chorus_structure.name,
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'numero_engagement': '',
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'montant_ht': str(facture.montant),
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'montant_ttc': str(facture.montant_ttc),
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'montant_tva': str(facture.tva),
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}
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return add_facturx_from_bytes(pdf_bytes, facturx_context)
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DEFAULT_FACTURX_TEMPLATE = 'factur-x.xml'
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def add_facturx_from_bytes(pdf_bytes: bytes, facturx_context: dict, template: str = DEFAULT_FACTURX_TEMPLATE):
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pdfa_bytes = to_pdfa(pdf_bytes)
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facturx_xml = str(render_to_string(template, facturx_context)).encode('utf-8')
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return facturx.generate_facturx_from_binary(pdfa_bytes, facturx_xml)
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