flectra/addons/mail/models/mail_alias.py

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# -*- coding: utf-8 -*-
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# Part of Odoo, Flectra. See LICENSE file for full copyright and licensing details.
import logging
import re
import unicodedata
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from flectra import _, api, fields, models
from flectra.exceptions import ValidationError
from flectra.tools import ustr
from flectra.tools.safe_eval import safe_eval
_logger = logging.getLogger(__name__)
# Inspired by http://stackoverflow.com/questions/517923
def remove_accents(input_str):
"""Suboptimal-but-better-than-nothing way to replace accented
latin letters by an ASCII equivalent. Will obviously change the
meaning of input_str and work only for some cases"""
input_str = ustr(input_str)
nkfd_form = unicodedata.normalize('NFKD', input_str)
return u''.join([c for c in nkfd_form if not unicodedata.combining(c)])
class Alias(models.Model):
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"""A Mail Alias is a mapping of an email address with a given Flectra Document
model. It is used by Flectra's mail gateway when processing incoming emails
sent to the system. If the recipient address (To) of the message matches
a Mail Alias, the message will be either processed following the rules
of that alias. If the message is a reply it will be attached to the
existing discussion on the corresponding record, otherwise a new
record of the corresponding model will be created.
This is meant to be used in combination with a catch-all email configuration
on the company's mail server, so that as soon as a new mail.alias is
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created, it becomes immediately usable and Flectra will accept email for it.
"""
_name = 'mail.alias'
_description = "Email Aliases"
_rec_name = 'alias_name'
_order = 'alias_model_id, alias_name'
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alias_name = fields.Char('Alias Name', help="The name of the email alias, e.g. 'jobs' if you want to catch emails for <jobs@example.flectra.com>")
alias_model_id = fields.Many2one('ir.model', 'Aliased Model', required=True, ondelete="cascade",
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help="The model (Flectra Document Kind) to which this alias "
"corresponds. Any incoming email that does not reply to an "
"existing record will cause the creation of a new record "
"of this model (e.g. a Project Task)",
# hack to only allow selecting mail_thread models (we might
# (have a few false positives, though)
domain="[('field_id.name', '=', 'message_ids')]")
alias_user_id = fields.Many2one('res.users', 'Owner', defaults=lambda self: self.env.user,
help="The owner of records created upon receiving emails on this alias. "
"If this field is not set the system will attempt to find the right owner "
"based on the sender (From) address, or will use the Administrator account "
"if no system user is found for that address.")
alias_defaults = fields.Text('Default Values', required=True, default='{}',
help="A Python dictionary that will be evaluated to provide "
"default values when creating new records for this alias.")
alias_force_thread_id = fields.Integer(
'Record Thread ID',
help="Optional ID of a thread (record) to which all incoming messages will be attached, even "
"if they did not reply to it. If set, this will disable the creation of new records completely.")
alias_domain = fields.Char('Alias domain', compute='_get_alias_domain',
default=lambda self: self.env["ir.config_parameter"].sudo().get_param("mail.catchall.domain"))
alias_parent_model_id = fields.Many2one(
'ir.model', 'Parent Model',
help="Parent model holding the alias. The model holding the alias reference "
"is not necessarily the model given by alias_model_id "
"(example: project (parent_model) and task (model))")
alias_parent_thread_id = fields.Integer('Parent Record Thread ID', help="ID of the parent record holding the alias (example: project holding the task creation alias)")
alias_contact = fields.Selection([
('everyone', 'Everyone'),
('partners', 'Authenticated Partners'),
('followers', 'Followers only')], default='everyone',
string='Alias Contact Security', required=True,
help="Policy to post a message on the document using the mailgateway.\n"
"- everyone: everyone can post\n"
"- partners: only authenticated partners\n"
"- followers: only followers of the related document or members of following channels\n")
_sql_constraints = [
('alias_unique', 'UNIQUE(alias_name)', 'Unfortunately this email alias is already used, please choose a unique one')
]
@api.multi
def _get_alias_domain(self):
alias_domain = self.env["ir.config_parameter"].sudo().get_param("mail.catchall.domain")
for record in self:
record.alias_domain = alias_domain
@api.one
@api.constrains('alias_defaults')
def _check_alias_defaults(self):
try:
dict(safe_eval(self.alias_defaults))
except Exception:
raise ValidationError(_('Invalid expression, it must be a literal python dictionary definition e.g. "{\'field\': \'value\'}"'))
@api.model
def create(self, vals):
""" Creates an email.alias record according to the values provided in ``vals``,
with 2 alterations: the ``alias_name`` value may be suffixed in order to
make it unique (and certain unsafe characters replaced), and
he ``alias_model_id`` value will set to the model ID of the ``model_name``
context value, if provided.
"""
model_name = self._context.get('alias_model_name')
parent_model_name = self._context.get('alias_parent_model_name')
if vals.get('alias_name'):
vals['alias_name'] = self._clean_and_make_unique(vals.get('alias_name'))
if model_name:
model = self.env['ir.model']._get(model_name)
vals['alias_model_id'] = model.id
if parent_model_name:
model = self.env['ir.model']._get(parent_model_name)
vals['alias_parent_model_id'] = model.id
return super(Alias, self).create(vals)
@api.multi
def write(self, vals):
""""give a unique alias name if given alias name is already assigned"""
if vals.get('alias_name') and self.ids:
vals['alias_name'] = self._clean_and_make_unique(vals.get('alias_name'), alias_ids=self.ids)
return super(Alias, self).write(vals)
@api.multi
def name_get(self):
"""Return the mail alias display alias_name, including the implicit
mail catchall domain if exists from config otherwise "New Alias".
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e.g. `jobs@mail.flectra.com` or `jobs` or 'New Alias'
"""
res = []
for record in self:
if record.alias_name and record.alias_domain:
res.append((record['id'], "%s@%s" % (record.alias_name, record.alias_domain)))
elif record.alias_name:
res.append((record['id'], "%s" % (record.alias_name)))
else:
res.append((record['id'], _("Inactive Alias")))
return res
@api.model
def _find_unique(self, name, alias_ids=False):
"""Find a unique alias name similar to ``name``. If ``name`` is
already taken, make a variant by adding an integer suffix until
an unused alias is found.
"""
sequence = None
while True:
new_name = "%s%s" % (name, sequence) if sequence is not None else name
domain = [('alias_name', '=', new_name)]
if alias_ids:
domain += [('id', 'not in', alias_ids)]
if not self.search(domain):
break
sequence = (sequence + 1) if sequence else 2
return new_name
@api.model
def _clean_and_make_unique(self, name, alias_ids=False):
# when an alias name appears to already be an email, we keep the local part only
name = remove_accents(name).lower().split('@')[0]
name = re.sub(r'[^\w+.]+', '-', name)
return self._find_unique(name, alias_ids=alias_ids)
@api.multi
def open_document(self):
if not self.alias_model_id or not self.alias_force_thread_id:
return False
return {
'view_type': 'form',
'view_mode': 'form',
'res_model': self.alias_model_id.model,
'res_id': self.alias_force_thread_id,
'type': 'ir.actions.act_window',
}
@api.multi
def open_parent_document(self):
if not self.alias_parent_model_id or not self.alias_parent_thread_id:
return False
return {
'view_type': 'form',
'view_mode': 'form',
'res_model': self.alias_parent_model_id.model,
'res_id': self.alias_parent_thread_id,
'type': 'ir.actions.act_window',
}
class AliasMixin(models.AbstractModel):
""" A mixin for models that inherits mail.alias. This mixin initializes the
alias_id column in database, and manages the expected one-to-one
relation between your model and mail aliases.
"""
_name = 'mail.alias.mixin'
_inherits = {'mail.alias': 'alias_id'}
alias_id = fields.Many2one('mail.alias', string='Alias', ondelete="restrict", required=True)
def get_alias_model_name(self, vals):
""" Return the model name for the alias. Incoming emails that are not
replies to existing records will cause the creation of a new record
of this alias model. The value may depend on ``vals``, the dict of
values passed to ``create`` when a record of this model is created.
"""
return None
def get_alias_values(self):
""" Return values to create an alias, or to write on the alias after its
creation.
"""
return {'alias_parent_thread_id': self.id}
@api.model
def create(self, vals):
""" Create a record with ``vals``, and create a corresponding alias. """
record = super(AliasMixin, self.with_context(
alias_model_name=self.get_alias_model_name(vals),
alias_parent_model_name=self._name,
)).create(vals)
record.alias_id.sudo().write(record.get_alias_values())
return record
@api.multi
def unlink(self):
""" Delete the given records, and cascade-delete their corresponding alias. """
aliases = self.mapped('alias_id')
res = super(AliasMixin, self).unlink()
aliases.unlink()
return res
@api.model_cr_context
def _init_column(self, name):
""" Create aliases for existing rows. """
super(AliasMixin, self)._init_column(name)
if name != 'alias_id':
return
# both self and the alias model must be present in 'ir.model'
IM = self.env['ir.model']
IM._reflect_model(self)
IM._reflect_model(self.env[self.get_alias_model_name({})])
alias_ctx = {
'alias_model_name': self.get_alias_model_name({}),
'alias_parent_model_name': self._name,
}
alias_model = self.env['mail.alias'].sudo().with_context(alias_ctx).browse([])
child_ctx = {
'active_test': False, # retrieve all records
'prefetch_fields': False, # do not prefetch fields on records
}
child_model = self.sudo().with_context(child_ctx).browse([])
for record in child_model.search([('alias_id', '=', False)]):
# create the alias, and link it to the current record
alias = alias_model.create(record.get_alias_values())
record.with_context({'mail_notrack': True}).alias_id = alias
_logger.info('Mail alias created for %s %s (id %s)',
record._name, record.display_name, record.id)
def _alias_check_contact(self, message, message_dict, alias):
""" Main mixin method that inheriting models may inherit in order
to implement a specifc behavior. """
return self._alias_check_contact_on_record(self, message, message_dict, alias)
def _alias_check_contact_on_record(self, record, message, message_dict, alias):
""" Generic method that takes a record not necessarily inheriting from
mail.alias.mixin. """
author = self.env['res.partner'].browse(message_dict.get('author_id', False))
if alias.alias_contact == 'followers':
if not record.ids:
return {
'error_message': _('incorrectly configured alias (unknown reference record)'),
}
if not hasattr(record, "message_partner_ids") or not hasattr(record, "message_channel_ids"):
return {
'error_message': _('incorrectly configured alias'),
}
accepted_partner_ids = record.message_partner_ids | record.message_channel_ids.mapped('channel_partner_ids')
if not author or author not in accepted_partner_ids:
return {
'error_message': _('restricted to followers'),
}
elif alias.alias_contact == 'partners' and not author:
return {
'error_message': _('restricted to known authors')
}
return True