Add file import/export

attachment_metadata/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :alt: License
+
+Attachment Metadata
+======================
+
+This module was written to extend the functionality of ir.attachment
+
+Installation
+============
+
+Installable without any requirements
+
+Usage
+=====
+
+THe module just add some field to ir.attachment
+
+For further information, please visit:
+
+* https://www.odoo.com/forum/help-1
+
+Known issues / Roadmap
+======================
+
+Credits
+=======
+
+* Joel Grand-Guillaume Camptocamp
+* initOS <http://initos.com>
+* Valentin CHEMIERE <valentin.chemiere@akretion.com>
+
+Contributors
+------------
+
+* Sebastien BEAU <sebastian.beau@akretion.com>
+
+Maintainer
+----------
+
+* Valentin CHEMIERE <valentin.chemiere@akretion.com>
+
+.. image:: http://odoo-community.org/logo.png
+    :alt: Odoo Community Association
+    :target: http://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose mission is to support the collaborative development of Odoo features and promote its widespread use.
+
+To contribute to this module, please visit http://odoo-community.org.

attachment_metadata/__init__.py

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+# -*- coding: utf-8 -*-
+###############################################################################
+#
+#   Module for OpenERP
+#   Copyright (C) 2015 Akretion (http://www.akretion.com).
+#   @author Valentin CHEMIERE <valentin.chemiere@akretion.com>
+#
+#   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/>.
+#
+###############################################################################
+
+from . import attachment

attachment_metadata/__openerp__.py

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+# -*- coding: utf-8 -*-
+###############################################################################
+#
+#   Module for OpenERP
+#   Copyright (C) 2015 Akretion (http://www.akretion.com).
+#   @author Valentin CHEMIERE <valentin.chemiere@akretion.com>
+#
+#   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/>.
+#
+###############################################################################
+
+{'name': 'attachment_metadata',
+ 'version': '0.0.1',
+ 'author': 'Akretion',
+ 'website': 'www.akretion.com',
+ 'license': 'AGPL-3',
+ 'category': 'Generic Modules',
+ 'description': """
+ Add some useful field to ir.attachment object like:
+ internal and external hash for coherence verification
+ """,
+ 'depends': [
+     'base',
+     'mail'
+ ],
+ 'data': [
+     'attachment_view.xml',
+     'security/ir.model.access.csv',
+ ],
+ 'installable': True,
+ 'application': False,
+ }

attachment_metadata/attachment.py

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

attachment_metadata/attachment_view.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+    <data>
+
+	    <record id="view_attachment_improved_form" model="ir.ui.view">
+	        <field name="model">ir.attachment.metadata</field>
+	    	<field name="inherit_id" ref="base.view_attachment_form" />
+	        <field name="arch" type="xml">
+		        <field name="url" position="after">
+			        <field name="internal_hash"/>
+			        <field name="external_hash"/>
+	    	    </field>
+	        </field>
+	    </record>
+
+    </data>
+</openerp>

attachment_metadata/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_attachment_metadata_user,ir.attachment.metadata.user,model_ir_attachment_metadata,base.group_user,1,0,0,0