def createDescription(self):
superblock = self.getSuperblock()
block_size = 1024 << superblock["log_block_size"].value
nb_block = superblock["blocks_count"].value
total = nb_block * block_size
used = (superblock["free_blocks_count"].value) * block_size
desc = "EXT2/EXT3"
if "group[0]/inode_table/inode[7]/blocks" in self:
if 0 < self["group[0]/inode_table/inode[7]/blocks"].value:
desc = "EXT3"
else:
desc = "EXT2"
return desc + " file system: total=%s, used=%s, block=%s" % (
humanFilesize(total), humanFilesize(used),
humanFilesize(block_size))
def extractAVI(self, headers):
audio_index = 1
for stream in headers.array("stream"):
if "stream_hdr/stream_type" not in stream:
continue
stream_type = stream["stream_hdr/stream_type"].value
if stream_type == "vids":
if "stream_hdr" in stream:
meta = Metadata(self)
self.extractAVIVideo(stream["stream_hdr"], meta)
self.addGroup("video", meta, "Video stream")
elif stream_type == "auds":
if "stream_fmt" in stream:
meta = Metadata(self)
self.extractAVIAudio(stream["stream_fmt"], meta)
self.addGroup("audio[%u]" % audio_index, meta,
"Audio stream")
audio_index += 1
if "avi_hdr" in headers:
self.useAviHeader(headers["avi_hdr"])
# Compute global bit rate
if self.has("duration") and "/movie/size" in headers:
self.bit_rate = float(
headers["/movie/size"].value) * 8 / timedelta2seconds(
self.get('duration'))
# Video has index?
if "/index" in headers:
self.comment = _("Has audio/video index (%s)") \
% humanFilesize(headers["/index"].size/8)
def __call__(self, prev):
name = self.path + "[]"
address, size, last = self.cluster.next()
if self.filesize:
if self.done >= self.filesize:
error("(FAT) bad metadata for " + self.path)
return
field = File(self.root, name, size=size)
if prev.first is None:
field._description = 'File size: %s' % humanFilesize(
self.filesize // 8)
field.setSubIStream(self.createInputStream)
field.datasize = min(self.filesize - self.done, size)
self.done += field.datasize
else:
field = Directory(self.root, name, size=size)
padding = self.root.getFieldByAddress(address, feed=False)
if not isinstance(padding, (PaddingBytes, RawBytes)):
error("(FAT) address %u doesn't point to a padding field" %
address)
return
if last:
next = None
else:
next = lambda: self(field)
field.setLinks(prev.first, next)
self.root.writeFieldsIn(padding, address, (field, ))
return field
def __init__(self,
parent,
name,
length,
description=None,
parser=None,
filename=None,
mime_type=None,
parser_class=None):
if filename:
if not isinstance(filename, unicode):
filename = makePrintable(filename, "ISO-8859-1")
if not description:
description = 'File "%s" (%s)' % (filename,
humanFilesize(length))
Bytes.__init__(self, parent, name, length, description)
def createInputStream(cis, **args):
tags = args.setdefault("tags", [])
if parser_class:
tags.append(("class", parser_class))
if parser is not None:
tags.append(("id", parser.PARSER_TAGS["id"]))
if mime_type:
tags.append(("mime", mime_type))
if filename:
tags.append(("filename", filename))
return cis(**args)
self.setSubIStream(createInputStream)
def __call__(self, prev):
name = self.path + "[]"
address, size, last = self.cluster.next()
if self.filesize:
if self.done >= self.filesize:
error("(FAT) bad metadata for " + self.path)
return
field = File(self.root, name, size=size)
if prev.first is None:
field._description = 'File size: %s' % humanFilesize(self.filesize//8)
field.setSubIStream(self.createInputStream)
field.datasize = min(self.filesize - self.done, size)
self.done += field.datasize
else:
field = Directory(self.root, name, size=size)
padding = self.root.getFieldByAddress(address, feed=False)
if not isinstance(padding, (PaddingBytes, RawBytes)):
error("(FAT) address %u doesn't point to a padding field" % address)
return
if last:
next = None
else:
next = lambda: self(field)
field.setLinks(prev.first, next)
self.root.writeFieldsIn(padding, address, (field,))
return field
def extractAVI(self, headers):
audio_index = 1
for stream in headers.array("stream"):
if "stream_hdr/stream_type" not in stream:
continue
stream_type = stream["stream_hdr/stream_type"].value
if stream_type == "vids":
if "stream_hdr" in stream:
meta = Metadata(self)
self.extractAVIVideo(stream["stream_hdr"], meta)
self.addGroup("video", meta, "Video stream")
elif stream_type == "auds":
if "stream_fmt" in stream:
meta = Metadata(self)
self.extractAVIAudio(stream["stream_fmt"], meta)
self.addGroup("audio[%u]" % audio_index, meta, "Audio stream")
audio_index += 1
if "avi_hdr" in headers:
self.useAviHeader(headers["avi_hdr"])
# Compute global bit rate
if self.has("duration") and "/movie/size" in headers:
self.bit_rate = float(headers["/movie/size"].value) * 8 / timedelta2seconds(self.get("duration"))
# Video has index?
if "/index" in headers:
self.comment = _("Has audio/video index (%s)") % humanFilesize(headers["/index"].size / 8)
def createDescription(self):
if self.isEmpty():
desc = "(terminator, empty header)"
else:
filename = self["name"].value
filesize = humanFilesize(self.getOctal("size"))
desc = "(%s: %s, %s)" % \
(filename, self["type"].display, filesize)
return "Tar File " + desc
def createDescription(self):
if self.isEmpty():
desc = "(terminator, empty header)"
else:
filename = self["name"].value
filesize = humanFilesize(self.getOctal("size"))
desc = "(%s: %s, %s)" % \
(filename, self["type"].display, filesize)
return "Tar File " + desc
def createDescription(self):
desc = "Partition header: "
if self.isUsed():
system = self["system"].display
size = self["size"].value * BLOCK_SIZE
desc += "%s, %s" % (system, humanFilesize(size))
else:
desc += "(unused)"
return desc
def createDescription(self):
desc = "Partition header: "
if self.isUsed():
system = self["system"].display
size = self["size"].value * BLOCK_SIZE
desc += "%s, %s" % (system, humanFilesize(size))
else:
desc += "(unused)"
return desc
def createDescription(self):
if self["magic"].value == "S1SUSPEND\0":
text = "Suspend swap file version 1"
elif self["magic"].value == "SWAPSPACE2":
text = "Linux swap file version 2"
else:
text = "Linux swap file version 1"
nb_page = self.getPageCount()
return "%s, page size: %s, %s pages" % (
text, humanFilesize(PAGE_SIZE), nb_page)
def createDescription(self):
if self["magic"].value == "S1SUSPEND\0":
text = "Suspend swap file version 1"
elif self["magic"].value == "SWAPSPACE2":
text = "Linux swap file version 2"
else:
text = "Linux swap file version 1"
nb_page = self.getPageCount()
return "%s, page size: %s, %s pages" % (
text, humanFilesize(PAGE_SIZE), nb_page)
def createDescription(self):
desc = "Inode %s: " % self.uniq_id
size = self["size"].value
if self["blocks"].value == 0:
desc += "(unused)"
elif 11 <= self.uniq_id:
size = humanFilesize(size)
desc += "file, size=%s, mode=%s" % (size, self.getMode())
else:
if self.uniq_id in self.inode_type_name:
desc += self.inode_type_name[self.uniq_id]
if self.uniq_id == 2:
desc += " (%s)" % self.getMode()
else:
desc += "special"
return desc
def __init__(self, parent, name, length, description=None,
parser=None, filename=None, mime_type=None, parser_class=None):
if filename:
if not isinstance(filename, unicode):
filename = makePrintable(filename, "ISO-8859-1")
if not description:
description = 'File "%s" (%s)' % (filename, humanFilesize(length))
Bytes.__init__(self, parent, name, length, description)
def createInputStream(cis, **args):
tags = args.setdefault("tags",[])
if parser_class:
tags.append(( "class", parser_class ))
if parser is not None:
tags.append(( "id", parser.PARSER_TAGS["id"] ))
if mime_type:
tags.append(( "mime", mime_type ))
if filename:
tags.append(( "filename", filename ))
return cis(**args)
self.setSubIStream(createInputStream)
def checkPattern(self):
if not (config.check_padding_pattern):
return False
if self.pattern is None:
return False
if self.MAX_SIZE < self._size / 8:
self.info("only check first %s of padding" %
humanFilesize(self.MAX_SIZE))
content = self._parent.stream.readBytes(self.absolute_address,
self.MAX_SIZE)
else:
content = self.value
index = 0
pattern_len = len(self.pattern)
while index < len(content):
if content[index:index + pattern_len] != self.pattern:
self.warning("padding contents doesn't look normal"
" (invalid pattern at byte %u)!" % index)
return False
index += pattern_len
return True
def __init__(self, parent, name, description=None):
FieldSet.__init__(self, parent, name, description)
self._size = (self["size"].value + 3*4) * 8
if MAX_CHUNK_SIZE < (self._size//8):
raise ParserError("PNG: Chunk is too big (%s)"
% humanFilesize(self._size//8))
tag = self["tag"].value
self.desc_func = None
self.value_func = None
if tag in self.TAG_INFO:
self._name, self.parse_func, desc, value_func = self.TAG_INFO[tag]
if value_func:
self.value_func = value_func
self.createValue = self.createValueFunc
if desc:
if isinstance(desc, str):
self._description = desc
else:
self.desc_func = desc
else:
self._description = ""
self.parse_func = None
def __init__(self, parent, name, description=None):
FieldSet.__init__(self, parent, name, description)
self._size = (self["size"].value + 3*4) * 8
if MAX_CHUNK_SIZE < (self._size//8):
raise ParserError("PNG: Chunk is too big (%s)"
% humanFilesize(self._size//8))
tag = self["tag"].value
self.desc_func = None
self.value_func = None
if tag in self.TAG_INFO:
self._name, self.parse_func, desc, value_func = self.TAG_INFO[tag]
if value_func:
self.value_func = value_func
self.createValue = self.createValueFunc
if desc:
if isinstance(desc, str):
self._description = desc
else:
self.desc_func = desc
else:
self._description = ""
self.parse_func = None
def checkPattern(self):
if not(config.check_padding_pattern):
return False
if self.pattern is None:
return False
if self.MAX_SIZE < self._size/8:
self.info("only check first %s of padding" % humanFilesize(self.MAX_SIZE))
content = self._parent.stream.readBytes(
self.absolute_address, self.MAX_SIZE)
else:
content = self.value
index = 0
pattern_len = len(self.pattern)
while index < len(content):
if content[index:index+pattern_len] != self.pattern:
self.warning(
"padding contents doesn't look normal"
" (invalid pattern at byte %u)!"
% index)
return False
index += pattern_len
return True
def createDescription(self):
size = self["nb_sectors"].value * self["bios/bytes_per_sector"].value
return "NTFS Master Boot Record (%s)" % humanFilesize(size)
def createDisplay(self):
if not self["value"].hasValue():
return None
if self._name in ("length", "piece_length"):
return humanFilesize(self.value)
return FieldSet.createDisplay(self)
def createDisplay(self):
if not self["value"].hasValue():
return None
if self._name in ("length", "piece_length"):
return humanFilesize(self.value)
return FieldSet.createDisplay(self)
def createDescription(self):
return "%d blocks of %s" % (self["num_blocks"].value,
humanFilesize(self["len"].value))
def createDescription(self):
size = self["nb_sectors"].value * self["bios/bytes_per_sector"].value
return "NTFS Master Boot Record (%s)" % humanFilesize(size)
def createDescription(self):
return "%d blocks of %s" % (
self["num_blocks"].value, humanFilesize(self["len"].value))
def createDescription(self):
desc = "Group %s: %s" % (self.uniq_id, humanFilesize(self.size/8))
if "superblock_copy" in self:
desc += " (with superblock copy)"
return desc
