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92 lines
4.1 KiB
92 lines
4.1 KiB
###################################################################################
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#
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# Copyright (c) 2017-2019 MuK IT GmbH.
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#
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# This file is part of MuK Large Objects Field
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# (see https://mukit.at).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# 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 Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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###################################################################################
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import io
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import logging
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import mimetypes
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from odoo import models
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from odoo.http import request, STATIC_CACHE
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from odoo.exceptions import AccessError
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_logger = logging.getLogger(__name__)
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class LargeObjectIrHttp(models.AbstractModel):
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_inherit = 'ir.http'
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@classmethod
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def lobject_content(cls, xmlid=None, model=None, id=None, field='content', unique=False,
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filename=None, filename_field='content_fname', download=False,
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mimetype=None, default_mimetype='application/octet-stream', env=None):
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""" Get file, attachment or downloadable content
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If the xmlid and id parameter is omitted, fetches the default value for the
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binary field (via the default_get method), otherwise fetches the field for
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that precise record.
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:param str xmlid: xmlid of the record
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:param str model: name of the model to fetch the binary from
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:param int id: id of the record from which to fetch the binary
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:param str field: binary field
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:param bool unique: add a max-age for the cache control
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:param str filename: choose a filename
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:param str filename_field: if not create an filename with model-id-field
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:param bool download: apply headers to download the file
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:param str mimetype: mintype of the field (for headers)
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:param str default_mimetype: default mintype if no mintype found
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:param Environment env: by default use request.env
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:returns: (status, headers, content)
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"""
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obj = None
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env = env or request.env
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if xmlid:
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obj = cls._xmlid_to_obj(env, xmlid)
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elif id and model in env.registry:
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obj = env[model].browse(int(id))
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if not obj or not obj.exists() or field not in obj:
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return (404, [], None)
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try:
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last_update = obj['__last_update']
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except AccessError:
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return (403, [], None)
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status, headers, content = None, [], None
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content = obj.with_context({'stream': True})[field] or io.BytesIO()
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if not filename:
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if filename_field in obj:
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filename = obj[filename_field]
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else:
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filename = "%s-%s-%s" % (obj._name, obj.id, field)
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mimetype = 'mimetype' in obj and obj.mimetype or False
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if not mimetype and filename:
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mimetype = mimetypes.guess_type(filename)[0]
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if not mimetype:
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mimetype = default_mimetype
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headers += [('Content-Type', mimetype), ('X-Content-Type-Options', 'nosniff')]
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etag = bool(request) and request.httprequest.headers.get('If-None-Match')
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retag = '"%s"' % obj.with_context({'checksum': True})[field] if content else ""
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status = status or (304 if etag == retag else 200)
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headers.append(('ETag', retag))
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headers.append(('Cache-Control', 'max-age=%s' % (STATIC_CACHE if unique else 0)))
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if download:
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headers.append(('Content-Disposition', cls.content_disposition(filename)))
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return (status, headers, content)
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