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###################################################################################
#
# Copyright (C) 2018 MuK IT GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
###################################################################################
import logging
import mimetypes
from odoo import models
from odoo.http import request, STATIC_CACHE
from odoo.exceptions import AccessError
_logger = logging.getLogger(__name__)
class LargeObjectControllerIrHttp(models.AbstractModel):
_inherit = 'ir.http'
@classmethod
def lobject_content(cls, xmlid=None, model=None, id=None, field='content', unique=False,
filename=None, filename_field='content_fname', download=False, mimetype=None,
default_mimetype='application/octet-stream', access_token=None, env=None):
obj = None
env = env or request.env
if xmlid:
obj = env.ref(xmlid, False)
elif id and model in env.registry:
obj = env[model].browse(int(id))
if not obj or not obj.exists() or field not in obj:
return (404, [], None)
try:
last_update = obj['__last_update']
except AccessError:
return (403, [], None)
status, headers, content = None, [], None
content = obj.with_context({'stream': True})[field] or b''
if not filename:
if filename_field in obj:
filename = obj[filename_field]
else:
filename = "%s-%s-%s" % (obj._name, obj.id, field)
mimetype = 'mimetype' in obj and obj.mimetype or False
if not mimetype and filename:
mimetype = mimetypes.guess_type(filename)[0]
if not mimetype:
mimetype = default_mimetype
headers += [('Content-Type', mimetype), ('X-Content-Type-Options', 'nosniff')]
etag = bool(request) and request.httprequest.headers.get('If-None-Match')
retag = '"%s"' % obj.with_context({'checksum': True})[field] if content else ""
status = status or (304 if etag == retag else 200)
headers.append(('ETag', retag))
headers.append(('Cache-Control', 'max-age=%s' % (STATIC_CACHE if unique else 0)))
if download:
headers.append(('Content-Disposition', cls.content_disposition(filename)))
return (status, headers, content)