server/images: replace pipes with temp files

ffmpeg's GIF demuxer needs the input stream to be seekable, which rules
pipes out.

1 files changed, 13 insertions, 0 deletions

diff --git a/server/szurubooru/func/util.py b/server/szurubooru/func/util.py
index f19e7fc..cdb9f81 100644
--- a/server/szurubooru/func/util.py
+++ b/server/szurubooru/func/util.py
@@ -1,8 +1,21 @@
+import os
 import datetime
 import hashlib
 import re
+import tempfile
+from contextlib import contextmanager
 from szurubooru.errors import ValidationError
 
+@contextmanager
+def create_temp_file(**kwargs):
+    (handle, path) = tempfile.mkstemp(**kwargs)
+    os.close(handle)
+    try:
+        with open(path, 'r+b') as handle:
+            yield handle
+    finally:
+        os.remove(path)
+
 def unalias_dict(input_dict):
     output_dict = {}
     for key_list, value in input_dict.items():