def main():
if 0:
t = time.time()
fd = open("./images/ntfs1-gen2.dd", "rb")
count = test_time(fd)
print "RAW Read %s in %s" % (count, time.time() - t)
if 1:
t = time.time()
## Open all the volumes at once:
fiffile = fif.FIFFile("./samples/ntfs1-gen2.00.zip", readwrite=True)
fd = fiffile.open_stream_by_name("./images/ntfs1-gen2.dd")
count = test_time(fd)
fiffile.stats()
print "FIF Read %s in %s" % (count, time.time() - t)
if 0:
t = time.time()
fd = pyewf.open([
"test.E01",
])
count = test_time(fd)
fd.close()
print "EWF Read %s in %s" % (count, time.time() - t)
def __init__(self, base, opts):
assert(base)
assert(base.read(0,6) == "\x45\x56\x46\x09\x0D\x0A")
self.name = self.fname = opts['filename']
self.fhandle = pyewf.open([self.name])
self.mode = 'rb'
self.fhandle.seek(0,2)
self.fsize = self.fhandle.tell()
self.fhandle.seek(0)
def __init__(self, base, opts):
assert (base)
assert (base.read(0, 6) == "\x45\x56\x46\x09\x0D\x0A")
self.name = self.fname = opts['filename']
self.fhandle = pyewf.open([self.name])
self.mode = 'rb'
self.fhandle.seek(0, 2)
self.fsize = self.fhandle.tell()
self.fhandle.seek(0)
def worker(self):
disk: pyewf.handle = pyewf.open(self._names)
queue = self._queue
while True:
with Timer(f"({current_thread().ident})Reading spends:",
display=False):
task = queue.get()
if task is None: # get None, exit
break
task.read_complete_event.wait() # wait until read complete
task.buffer[:] = disk.read_buffer_at_offset(task.size, task.offset)
task.write_complete_event.set() # write complete
queue.task_done() # useless now
def __init__(
self,
ewf_path: Path,
parallelism: int = 3,
block_size: int = 1024 * 1024 * 512,
verbose: bool = False,
):
# backup for recovery
current_dir = os.getcwd()
if str(ewf_path) != ewf_path.name:
warnings.warn(
"pyewf can only handle file in current dir, current dir may change!"
)
os.chdir(ewf_path.absolute().parent)
ewf_path = Path(ewf_path.name)
ewf_path: str = str(ewf_path)
self._names = pyewf.glob(ewf_path)
self._thread_count = parallelism
self._block_size = block_size
self._queue_size = parallelism + 3
self._queue = Queue(maxsize=self._queue_size)
self._threads = [
Thread(target=self.worker) for _ in range(parallelism)
]
self._verbose = verbose
disk: pyewf.handle
with closing(pyewf.open(self._names)) as disk:
self._disk_size = disk.media_size
for t in self._threads:
t.start()
os.chdir(current_dir)
def main():
if 0:
t = time.time()
fd = open("./images/ntfs1-gen2.dd", "rb")
count = test_time(fd)
print "RAW Read %s in %s" % (count, time.time() - t)
if 1:
t = time.time()
## Open all the volumes at once:
fiffile = fif.FIFFile("./samples/ntfs1-gen2.00.zip", readwrite=True)
fd = fiffile.open_stream_by_name("./images/ntfs1-gen2.dd")
count = test_time(fd)
fiffile.stats()
print "FIF Read %s in %s" % (count, time.time() - t)
if 0:
t = time.time()
fd = pyewf.open(["test.E01"])
count = test_time(fd)
fd.close()
print "EWF Read %s in %s" % (count, time.time() - t)
