File python-django-waliki-python3.13.patch of Package python-django-waliki

From e90e48f1515c96223950eb586f4d343d0dfd6f19 Mon Sep 17 00:00:00 2001
From: Oleg Girko <ol@infoserver.lv>
Date: Mon, 21 Oct 2024 17:59:14 +0100
Subject: [PATCH] Fix compaibility with Python 3.13.

* The imghdr package has beem removed in Python 3.13.
  Using file_magic instead.

Signed-off-by: Oleg Girko <ol@infoserver.lv>
---
 setup.py                    |  2 +-
 waliki/attachments/views.py | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/setup.py b/setup.py
index af863db..081e7d4 100755
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@ if sys.argv[-1] == 'publish':
 readme = open('README.rst').read()
 history = open('HISTORY.rst').read().replace('.. :changelog:', '')
 
-install_requires = ['django', 'Markups', 'sh', 'docutils', 'genshi']
+install_requires = ['django', 'Markups', 'sh', 'docutils', 'genshi', 'file_magic']
 
 
 extras_require = {                                      # noqa
diff --git a/waliki/attachments/views.py b/waliki/attachments/views.py
index a7d482e..ae4f09e 100644
--- a/waliki/attachments/views.py
+++ b/waliki/attachments/views.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import json
-import imghdr
+import magic
 from django.shortcuts import render, get_object_or_404
 from django.contrib import messages
 from six import text_type
@@ -11,6 +11,9 @@ from waliki.acl import permission_required
 from waliki.utils import is_ajax
 from .models import Attachment
 
+_ms = magic.open(magic.MAGIC_MIME_TYPE)
+_ms.load()
+
 
 @permission_required('change_page')
 def attachments(request, slug):
@@ -36,10 +39,13 @@ def delete_attachment(request, slug, attachment_id_or_filename):
     return HttpResponse(json.dumps({'removed': None}), content_type="application/json")
 
 
+def _is_image(filename):
+    return _ms.file(filename).startswith('image/')
+
 @permission_required('view_page', raise_exception=True)
 def get_file(request, slug, attachment_id=None, filename=None):
     attachment = get_object_or_404(Attachment, file__endswith=filename, page__slug=slug)
-    as_attachment = ((not imghdr.what(attachment.file.path) and 'embed' not in request.GET)
+    as_attachment = ((not _is_image(attachment.file.path) and 'embed' not in request.GET)
                       or 'as_attachment' in request.GET)
     # ref https://github.com/johnsensible/django-sendfile
     return sendfile(request, attachment.file.path,
-- 
2.47.0