X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/d5e836566b0bbff5242de33acc264ca94ad11f49..6592ad610dc42a6242b5d5446addfb7a1feb01e0:/src/catalogue/utils.py

diff --git a/src/catalogue/utils.py b/src/catalogue/utils.py
index 1c188418e..7f337418b 100644
--- a/src/catalogue/utils.py
+++ b/src/catalogue/utils.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
@@ -18,7 +17,7 @@ from django.conf import settings
 from django.core.files.storage import DefaultStorage
 from django.core.files.uploadedfile import UploadedFile
 from django.http import HttpResponse
-from django.utils.encoding import force_unicode
+from django.utils.encoding import force_text
 
 from reporting.utils import read_chunks
 
@@ -27,14 +26,19 @@ if hasattr(random, 'SystemRandom'):
     randrange = random.SystemRandom().randrange
 else:
     randrange = random.randrange
-MAX_SESSION_KEY = 18446744073709551616L     # 2 << 63
+MAX_SESSION_KEY = 18446744073709551616     # 2 << 63
 
 
 def get_random_hash(seed):
-    sha_digest = hashlib.sha1('%s%s%s%s' % (
-        randrange(0, MAX_SESSION_KEY), time.time(), unicode(seed).encode('utf-8', 'replace'), settings.SECRET_KEY)
-    ).digest()
-    return urlsafe_b64encode(sha_digest).replace('=', '').replace('_', '-').lower()
+    sha_digest = hashlib.sha1((
+        '%s%s%s%s' % (
+            randrange(0, MAX_SESSION_KEY),
+            time.time(),
+            str(seed).encode('utf-8', 'replace'),
+            settings.SECRET_KEY
+        )
+    ).encode('utf-8')).digest()
+    return urlsafe_b64encode(sha_digest).decode('latin1').replace('=', '').replace('_', '-').lower()
 
 
 def split_tags(*tag_lists):
@@ -241,10 +245,10 @@ def truncate_html_words(s, num, end_text='...'):
 
     This is just a version of django.utils.text.truncate_html_words with no space before the end_text.
     """
-    s = force_unicode(s)
+    s = force_text(s)
     length = int(num)
     if length <= 0:
-        return u''
+        return ''
     html4_singlets = ('br', 'col', 'link', 'base', 'img', 'param', 'area', 'hr', 'input')
     # Set up regular expressions
     re_words = re.compile(r'&.*?;|<.*?>|(\w[\w-]*)', re.U)
@@ -355,3 +359,7 @@ def gallery_path(slug):
 def gallery_url(slug):
     return '%s%s%s/' % (settings.MEDIA_URL, settings.IMAGE_DIR, slug)
 
+
+def get_mp3_length(path):
+    from mutagen.mp3 import MP3
+    return int(MP3(path).info.length)