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-rw-r--r--slixmpp/plugins/xep_0454/__init__.py20
1 files changed, 12 insertions, 8 deletions
diff --git a/slixmpp/plugins/xep_0454/__init__.py b/slixmpp/plugins/xep_0454/__init__.py
index 2d3cb8f6..9e9c3b02 100644
--- a/slixmpp/plugins/xep_0454/__init__.py
+++ b/slixmpp/plugins/xep_0454/__init__.py
@@ -57,14 +57,18 @@ class XEP_0454(BasePlugin):
modes.GCM(aes_gcm_iv),
).encryptor()
- # TODO: use streaming API from CipherContext
- if input_file:
- plain = input_file.read()
- else:
- with filename.open(mode='rb') as file:
- plain = file.read()
-
- payload = aes_gcm.update(plain) + aes_gcm.tag + aes_gcm.finalize()
+ if input_file is None:
+ input_file = open(filename, 'rb')
+
+ payload = b''
+ while True:
+ buf = input_file.read(4096)
+ if not buf:
+ break
+ payload += aes_gcm.update(buf)
+
+ aes_gcm.finalize()
+ payload += aes_gcm.tag
fragment = aes_gcm_iv.hex() + aes_gcm_key.hex()
return (payload, fragment)