def unarc(name):
info('extract files from "%s"', topdir(name))
if name.endswith('.lha'):
import lhafile
arc = lhafile.LhaFile(name)
for item in arc.infolist():
filename = os.sep.join(item.filename.split('\\'))
mkdir(path.dirname(filename))
debug('extract "%s"', filename)
if path.isdir(filename):
continue
with open(filename, 'wb') as f:
f.write(arc.read(item.filename))
elif name.endswith('.tar.gz') or name.endswith('.tar.bz2'):
with tarfile.open(name) as arc:
for item in arc.getmembers():
debug('extract "%s"' % item.name)
arc.extract(item)
elif name.endswith('.zip'):
with zipfile.ZipFile(name) as arc:
for item in arc.infolist():
debug('extract "%s"' % item.filename)
arc.extract(item)
else:
raise RuntimeError('Unrecognized archive: "%s"', name)
def _create_archive_obj(self, sf, scanner):
if lhafile:
try:
fobj = sf.get_fobj()
return lhafile.LhaFile(fobj, "r")
except Exception as e:
scanner.warning(sf, "error reading archive: %s" % e)
else:
scanner.warning(sf, "can't handle archive. missing 'lhafile' module.")
def load(fo):
is_lha = fo.read(5).endswith(b'-lh')
fo.seek(0)
if is_lha:
if not lhafile:
raise YMFileException("Compressed file; install 'lhafile'")
else:
lha = lhafile.LhaFile(fo)
lha_filename = lha.namelist()[0]
fo = io.BytesIO(lha.read(lha_filename))
ym = {}
for field, data_type, length in header:
if data_type == 'skip':
fo.seek(length, 1)
continue
if data_type == 'digidrum':
if ym['digidrums']:
for i in range(ym['digidrums']):
sample_size = read_int(fo, 4)
fo.seek(sample_size, 1)
continue
read = read_int if data_type == 'int' else read_str
value = read(fo, length)
if field == 'file_id' and value not in supported_formats:
raise YMFileException("Unsupported format: " + value)
ym[field] = value
interleaved = bool(ym['attributes'] & 1)
if interleaved:
chunks = 16
chunk_size = ym['frames']
else:
chunks = ym['frames']
chunk_size = 16
data = []
for i in range(chunks):
chunk = fo.read(chunk_size)
if len(chunk) < chunk_size:
raise YMFileException("Truncated file")
data.append(chunk)
end_marker = fo.read(4)
if len(end_marker) < 4:
raise YMFileException("Truncated file")
elif end_marker != b'End!':
raise YMFileException("Wrong end marker: " + str(end_marker))
ym['interleaved'] = interleaved
ym['data'] = data
ym['compressed'] = is_lha
if is_lha:
ym['compressed_filename'] = lha_filename
fo.close()
ym['length'] = round(ym['frames'] / ym['frame_freq'])
return ym
def _lhafile(src_path, dest_path, image_id):
if NO_LHA:
raise Exception("No lhafile available.")
try:
with lhafile.LhaFile(src_path, 'r') as lfd:
content = lfd.namelist()
if len(content) != 1:
raise Exception("Archive contains more than one file.")
else:
lfd.extract(content[0], dest_path)
except Exception as e:
LOG.debug("LHA: Error decompressing image %(iid)s: %(msg)s", {
"iid": image_id,
"msg": encodeutils.exception_to_unicode(e)})
raise
def _create_archive_obj(self, file_name): return lhafile.LhaFile(file_name, "r")
#!/usr/sbin/python3
import lhafile
import struct
import sys
import pathlib
inf = sys.argv[1]
a = lhafile.LhaFile(inf)
for info in a.infolist():
name = b''.join([struct.pack('B', ord(i)) for i in info.filename])
name = name.decode('shift_jis')
if '\\' in name:
sep = name.split('\\')
if '/' in name:
sep = name.split('/')
if len(sep) > 1:
d = pathlib.Path(*sep[:-1])
d.mkdir(parents=True, exist_ok=True)
pathlib.Path(*sep).write_bytes(a.read(info.filename))
