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47 lines
2.0 KiB
47 lines
2.0 KiB
# -*- coding: utf-8 -*-
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###############################################################################
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#
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# Module for OpenERP
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# Copyright 2011-2012 Camptocamp SA
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# @author: Joel Grand-Guillaume
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# Copyright (C) 2015 Akretion (http://www.akretion.com).
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# @author Valentin CHEMIERE <valentin.chemiere@akretion.com>
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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 Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (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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#
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###############################################################################
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from openerp import models, fields, api, _
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from openerp.exceptions import Warning
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import hashlib
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from base64 import b64decode
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class IrAttachmentMetadata(models.Model):
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_name = 'ir.attachment.metadata'
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_inherits = {'ir.attachment': 'attachment_id'}
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internal_hash = fields.Char(store=True, compute='_compute_hash')
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external_hash = fields.Char()
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attachment_id = fields.Many2one('ir.attachment', required=True,
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ondelete='cascade')
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@api.depends('datas', 'external_hash')
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def _compute_hash(self):
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if self.datas:
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self.internal_hash = hashlib.md5(b64decode(self.datas)).hexdigest()
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if self.external_hash and self.internal_hash != self.external_hash:
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raise Warning(_('File corrupted'),
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_("Something was wrong with the retreived file, "
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"please relaunch the task."))
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