From e15662bf20ee4853b8cbd0fb605199e0569f89a3 Mon Sep 17 00:00:00 2001
From: Parthiv Patel <parthiv@techreceptives.com>
Date: Tue, 20 Sep 2022 12:37:47 +0000
Subject: [PATCH] [FIX] mimetype

---
 flectra/tools/mimetypes.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/flectra/tools/mimetypes.py b/flectra/tools/mimetypes.py
index b18a734726..f999899216 100644
--- a/flectra/tools/mimetypes.py
+++ b/flectra/tools/mimetypes.py
@@ -179,7 +179,7 @@ else:
         _guesser = ms.buffer
 
     def guess_mimetype(bin_data, default=None):
-        mimetype = _guesser(bin_data)
+        mimetype = _guesser(bin_data[:1024])
         # upgrade incorrect mimetype to official one, fixed upstream
         # https://github.com/file/file/commit/1a08bb5c235700ba623ffa6f3c95938fe295b262
         if mimetype == 'image/svg':
@@ -191,3 +191,14 @@ def neuter_mimetype(mimetype, user):
     if wrong_type and not user._is_system():
         return 'text/plain'
     return mimetype
+
+
+def get_extension(filename):
+    """ Return the extension the current filename based on the heuristic that
+    ext is less than or equal to 10 chars and is alphanumeric.
+
+    :param str filename: filename to try and guess a extension for
+    :returns: detected extension or ``
+    """
+    ext = '.' in filename and filename.split('.')[-1]
+    return ext and len(ext) <= 10 and ext.isalnum() and '.' + ext.lower() or ''