diff options
| -rw-r--r-- | src/plugins/opensubtitles/hash.py | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/src/plugins/opensubtitles/hash.py b/src/plugins/opensubtitles/hash.py index f28341658..f780519c5 100644 --- a/src/plugins/opensubtitles/hash.py +++ b/src/plugins/opensubtitles/hash.py @@ -21,26 +21,24 @@ def hash_file (name): if filesize < 65536 * 2: return SIZE_ERROR, 0 - file_handle = open (file_to_hash.get_path (), "rb") + with open (file_to_hash.get_path (), "rb") as file_handle: + for _ in range(int(65536 / bytesize)): + buf = file_handle.read (bytesize) + (l_value,) = struct.unpack (longlongformat, buf) + file_hash += l_value + file_hash = file_hash & 0xFFFFFFFFFFFFFFFF #to remain as 64bit number - for _ in range(int(65536 / bytesize)): - buf = file_handle.read (bytesize) - (l_value,) = struct.unpack (longlongformat, buf) - file_hash += l_value - file_hash = file_hash & 0xFFFFFFFFFFFFFFFF #to remain as 64bit number + file_handle.seek (max (0, filesize - 65536), os.SEEK_SET) - file_handle.seek (max (0, filesize - 65536), os.SEEK_SET) + if file_handle.tell() != max (0, filesize - 65536): + return SEEK_ERROR, 0 - if file_handle.tell() != max (0, filesize - 65536): - return SEEK_ERROR, 0 + for _ in range(int(65536/bytesize)): + buf = file_handle.read (bytesize) + (l_value,) = struct.unpack (longlongformat, buf) + file_hash += l_value + file_hash = file_hash & 0xFFFFFFFFFFFFFFFF - for _ in range(int(65536/bytesize)): - buf = file_handle.read (bytesize) - (l_value,) = struct.unpack (longlongformat, buf) - file_hash += l_value - file_hash = file_hash & 0xFFFFFFFFFFFFFFFF - - file_handle.close () - returnedhash = "%016x" % file_hash + returnedhash = f"{file_hash:%016x}" return returnedhash, filesize |