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# -*- coding: utf-8 -*- 

# Copyright (C) 1998-2019 by the Free Software Foundation, Inc. 

# 

# This file is part of Postorius. 

# 

# Postorius is free software: you can redistribute it and/or modify it under 

# the terms of the GNU General Public License as published by the Free 

# Software Foundation, either version 3 of the License, or (at your option) 

# any later version. 

# 

# Postorius 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 General Public License for 

# more details. 

# 

# You should have received a copy of the GNU General Public License along with 

# Postorius. If not, see <http://www.gnu.org/licenses/>. 

 

import json 

 

from email import policy 

from email import message_from_string 

from email.parser import HeaderParser 

 

from django.http import HttpResponse, Http404 

from django.contrib.auth.decorators import login_required 

from django.utils.translation import gettext as _ 

from django.urls import reverse 

 

from postorius.auth.decorators import list_moderator_required 

from postorius.models import List 

from django_mailman3.lib.scrub import Scrubber 

 

 

def parse(message): 

msgobj = message_from_string(message, policy=policy.SMTP) 

header_parser = HeaderParser() 

 

headers = [] 

headers_dict = header_parser.parsestr(message) 

for key in headers_dict.keys(): 

headers.append('{}: {}'.format(key, headers_dict[key])) 

content = Scrubber(msgobj).scrub()[0] 

return { 

'body': content, 

'headers': '\n'.join(headers), 

} 

 

 

def get_attachments(message): 

message = message_from_string(message, policy=policy.SMTP) 

return Scrubber(message).scrub()[1] 

 

 

@login_required 

@list_moderator_required 

def get_held_message(request, list_id, held_id=-1): 

"""Return a held message as a json object 

""" 

if held_id == -1: 

raise Http404(_('Message does not exist')) 

 

held_message = List.objects.get_or_404( 

fqdn_listname=list_id).get_held_message(held_id) 

if 'raw' in request.GET: 

return HttpResponse(held_message.msg, content_type='text/plain') 

response_data = dict() 

response_data['sender'] = held_message.sender 

response_data['subject'] = held_message.subject 

response_data['reason'] = held_message.reason 

response_data['hold_date'] = held_message.hold_date 

response_data['msg'] = parse(held_message.msg) 

response_data['msgid'] = held_message.request_id 

response_data['attachments'] = [] 

attachments = get_attachments(held_message.msg) 

for attachment in attachments: 

counter, name, content_type, encoding, content = attachment 

response_data['attachments'].append( 

(reverse('rest_attachment_for_held_message', 

args=(list_id, held_id, counter)), name)) 

 

return HttpResponse(json.dumps(response_data), 

content_type='application/json') 

 

 

@login_required 

@list_moderator_required 

def get_attachment_for_held_message(request, list_id, held_id, attachment_id): 

held_message = List.objects.get_or_404( 

fqdn_listname=list_id).get_held_message(held_id) 

attachments = get_attachments(held_message.msg) 

for attachment in attachments: 

if attachment[0] == int(attachment_id): 

response = HttpResponse(attachment[4], content_type=attachment[2]) 

response['Content-Disposition'] = \ 

'attachment;filename="{}"'.format(attachment[1]) 

return response 

raise Http404(_('Attachment does not exist'))