mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-25 20:23:37 +00:00
45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
|
from hachoir.core.i18n import guessBytesCharset
|
||
|
|
from hachoir.stream import InputIOStream, InputSubStream, InputStreamError
|
||
|
|
|
||
|
|
|
||
|
|
def FileInputStream(filename, real_filename=None, **args):
|
||
|
|
"""
|
||
|
|
Create an input stream of a file. filename must be unicode or a file
|
||
|
|
object.
|
||
|
|
|
||
|
|
real_filename is an optional argument used to specify the real filename,
|
||
|
|
its type can be 'str' or 'unicode'. Use real_filename when you are
|
||
|
|
not able to convert filename to real unicode string (ie. you have to
|
||
|
|
use unicode(name, 'replace') or unicode(name, 'ignore')).
|
||
|
|
"""
|
||
|
|
if not real_filename:
|
||
|
|
real_filename = (filename if isinstance(filename, str)
|
||
|
|
else getattr(filename, 'name', ''))
|
||
|
|
try:
|
||
|
|
if isinstance(filename, str):
|
||
|
|
inputio = open(real_filename, 'rb')
|
||
|
|
else:
|
||
|
|
inputio = filename
|
||
|
|
filename = getattr(filename, 'name', '')
|
||
|
|
except IOError as err:
|
||
|
|
errmsg = str(err)
|
||
|
|
raise InputStreamError(
|
||
|
|
"Unable to open file %s: %s" % (filename, errmsg))
|
||
|
|
source = "file:" + filename
|
||
|
|
offset = args.pop("offset", 0)
|
||
|
|
size = args.pop("size", None)
|
||
|
|
if offset or size:
|
||
|
|
if size:
|
||
|
|
size = 8 * size
|
||
|
|
stream = InputIOStream(inputio, source=source, **args)
|
||
|
|
return InputSubStream(stream, 8 * offset, size, **args)
|
||
|
|
else:
|
||
|
|
args.setdefault("tags", []).append(("filename", filename))
|
||
|
|
return InputIOStream(inputio, source=source, **args)
|
||
|
|
|
||
|
|
|
||
|
|
def guessStreamCharset(stream, address, size, default=None):
|
||
|
|
size = min(size, 1024 * 8)
|
||
|
|
bytes = stream.readBytes(address, size // 8)
|
||
|
|
return guessBytesCharset(bytes, default)
|