def __init__(self, parent, name, **kw):
FieldSet.__init__(self, parent, name, **kw)
code = self["bytecode"].value
if code not in self.bytecode_info:
raise ParserError('Unknown bytecode: "%s"' % code)
self.code_info = self.bytecode_info[code]
if not name:
self._name = self.code_info[0]
if code == "l":
self.createValue = self.createValueLong
elif code in ("i", "I", "f", "g"):
self.createValue = lambda: self["value"].value
elif code == "T":
self.createValue = lambda: True
elif code == "F":
self.createValue = lambda: False
elif code in ("x", "y"):
self.createValue = self.createValueComplex
elif code in ("s", "t", "u"):
self.createValue = self.createValueString
self.createDisplay = self.createDisplayString
if code == 't':
if not hasattr(self.root,'string_table'):
self.root.string_table=[]
self.root.string_table.append(self)
elif code == 'R':
if hasattr(self.root,'string_table'):
self.createValue = self.createValueStringRef
def __init__(self, parent, ids):
FieldSet.__init__(self, parent, "?[]")
# Set name
id = self['id'].value
self.val = ids.get(id)
if not self.val:
if id == 0xBF:
self.val = 'CRC-32[]', Binary
elif id == 0xEC:
self.val = 'Void[]', Binary
elif id == 0x1B538667:
self.val = 'SignatureSlot[]', signature
else:
self.val = 'Unknown[]', Binary
self._name = self.val[0]
# Compute size
size = self['size']
if size.value is not None:
self._size = size.address + size.size + size.value * 8
elif self._parent._parent:
raise ParserError("Unknown length (only allowed for the last Level 0 element)")
elif self._parent._size is not None:
self._size = self._parent._size - self.address
def __init__(self, parent, name, desc=None):
FieldSet.__init__(self, parent, name, desc)
pos = self.stream.searchBytesLength(CrossReferenceTable.MAGIC, False)
if pos == None:
raise ParserError("Can't find xref starting at %u" %
(self.absolute_address//8))
self._size = 8*pos-self.absolute_address
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
if not self._size:
frame_size = self.getFrameSize()
if not frame_size:
raise ParserError("MPEG audio: Invalid frame %s" % self.path)
self._size = min(frame_size * 8, self.parent.size - self.address)
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
key = self["type"].value & 31
if self["class"].value == 0:
# universal object
if key in self.TYPE_INFO:
self._name, self._handler, self._description, create_desc = self.TYPE_INFO[key]
if create_desc:
self.createDescription = lambda: "%s: %s" % (self.TYPE_INFO[key][2], create_desc(self))
self._description = None
elif key == 31:
raise ParserError("ASN.1 Object: tag bigger than 30 are not supported")
else:
self._handler = None
elif self["form"].value:
# constructed: treat as sequence
self._name = "seq[]"
self._handler = readSequence
self._description = "constructed object type %i" % key
else:
# primitive, context/private
self._name = "raw[]"
self._handler = readASCIIString
self._description = "%s object type %i" % (self["class"].display, key)
field = self["size"]
self._size = field.address + field.size + field.value * 8
def __init__(self, *args):
FieldSet.__init__(self, *args)
if not hasattr(self.root,'streamgroups'):
self.root.streamgroups={}
for tag in range(0xBC, 0x100):
self.root.streamgroups[tag]=None
tag = self["tag"].value
if tag in self.tag_info:
self._name, self.parser, self._description = self.tag_info[tag]
elif 0xBC <= tag <= 0xFF:
if 0xC0 <= tag < 0xE0:
# audio
streamid = tag-0xC0
self._name, self.parser, self._description = ("audio[%i][]"%streamid, Stream, "Audio Stream %i Packet"%streamid)
elif 0xE0 <= tag < 0xF0:
# video
streamid = tag-0xE0
self._name, self.parser, self._description = ("video[%i][]"%streamid, Stream, "Video Stream %i Packet"%streamid)
else:
self._name, self.parser, self._description = ("stream[]", Stream, "Data Stream Packet")
else:
self.parser = defaultParser
if not self.parser:
self.parser = defaultParser
elif self.parser != PackHeader and "length" in self:
self._size = (6 + self["length"].value) * 8
def __init__(self, parent, name, width, height, item_class, row_name="row", item_name="item", *args, **kwargs):
FieldSet.__init__(self, parent, name, *args, **kwargs)
self.width = width
self.height = height
self.item_class = item_class
self.row_name = row_name
self.item_name = item_name
def __init__(self, parent, name, num_digests, digest_desc=None, desc=None):
FieldSet.__init__(self, parent, name, desc)
self.num_digests = num_digests
if digest_desc is None:
self.digest_desc = ["stream %d" % i for i in xrange(num_digests)]
else:
self.digest_desc = digest_desc
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["size"].value * 8
type = self["type"].value
if type in self.ATTR_INFO:
self._name = self.ATTR_INFO[type][0]
self._parser = self.ATTR_INFO[type][2]
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
value = 0
for field in self:
value <<= 15
value += field.value & 0x7FFF
self.createValue = lambda: value
def __init__(self, *args):
FieldSet.__init__(self, *args)
tag = self["tag"].value
if tag in self.TAG_INFO:
self._name, self._description = self.TAG_INFO[tag]
else:
self._parser = None
def __init__(self, *args):
FieldSet.__init__(self, *args)
code = self["code"].value
if code in self.ext_code:
self._name, self.parser, self._description = self.ext_code[code]
else:
self.parser = defaultExtensionParser
def __init__(self, parent, name, desc=None):
FieldSet.__init__(self, parent, name, description=desc)
pos = self.stream.searchBytesLength(Trailer.MAGIC, False)
if pos == None:
raise ParserError("Can't find '%s' starting at %u" \
(Trailer.MAGIC, self.absolute_address//8))
self._size = 8*pos-self.absolute_address
def __init__(self, parent, name, size, parser, description=None, group=None):
FieldSet.__init__(self, parent, name, description, size=size)
if not group:
group = FragmentGroup(parser)
self.field_size = size
self.group = group
self.group.add(self)
def __init__(self, parent, name, toc, description, size=None):
FieldSet.__init__(self, parent, name, description, size=size)
self.toc = toc
if self["format/byte_big_endian"].value:
self.endian = BIG_ENDIAN
else:
self.endian = LITTLE_ENDIAN
def __init__(self, parent, name, entry, size=None):
FieldSet.__init__(self, parent, name, size=entry["size"].value*8)
self.entry = entry
res_type = self.getResType()
if res_type in RESOURCE_TYPE:
self._name, description, self._parser = RESOURCE_TYPE[res_type]
else:
self._parser = None
def __init__(self, *args, **kwargs):
if 'prev_command' in kwargs:
self.prev_command = kwargs['prev_command']
del kwargs['prev_command']
else:
self.prev_command = None
self.command = None
FieldSet.__init__(self, *args, **kwargs)
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = (8 + alignValue(self["size"].value, 2)) * 8
tag = self["type"].value
if tag in self.TAG_INFO:
self._name, self._description, self._parser = self.TAG_INFO[tag]
else:
self._parser = None
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
try:
self._name, self.handler, self._description = self.TAG_INFO[self["tag"].value]
except KeyError:
self.handler = None
size = self["size"]
self._size = size.address + size.size + alignValue(size.value, 2) * 8
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = (11 + self["size"].value) * 8
tag = self["tag"].value
if tag in self.tag_info:
self._name, self.parser, self._description = self.tag_info[tag]
else:
self.parser = None
def __init__(self, parent, name, table, **kw):
FieldSet.__init__(self, parent, name, **kw)
self.table = table
tag = table["tag"].value
if tag in self.TAG_INFO:
self._name, self._description, self.parser = self.TAG_INFO[tag]
else:
self.parser = None
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = 32 + self["metadata_length"].value * 8
try:
key = self["block_type"].value
self._name, self._description, self.handler = self.BLOCK_TYPES[key]
except KeyError:
self.handler = None
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["length"].value * 8
fourcc = self["fourcc"].value
if fourcc in self.tag_info:
self._name, self._parser, self._description = self.tag_info[fourcc]
else:
self._parser = None
self._description = "Unknown chunk: fourcc %s" % self["fourcc"].display
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
code = self["type"].value
try:
self.parser, desc = self.tag_info[code]
if code == self.CODE_DATE:
self.createValue = self.createValueDate
except KeyError:
raise ParserError("AMF: Unable to parse type %s" % code)
def __init__(self, parent, name, size=None, desc=None):
FieldSet.__init__(self, parent, name, description=desc)
if size != None:
self._size = 8*size
# object catalogs are ended with "obj"
elif self["object"].value == "obj":
size = self.stream.searchBytesLength("endobj", False)
if size != None:
self._size = 8*(size+2)
def __init__(self, parent, name, description=None):
FieldSet.__init__(self, parent, name, description)
self._size = (self["size"].value) * 8
tag = self["tag"].value
if tag in self.tag_info:
self._name, self.parse_func = self.tag_info[tag]
else:
self._description = ""
self.parse_func = None
def __init__(self, parent, name, elements_class, length,
**elements_extra_args):
"""Create a FieldArray of <length> fields of class <elements_class>,
named "<name>[x]". The **elements_extra_args will be passed to the
constructor of each field when yielded."""
FieldSet.__init__(self, parent, name)
self.array_elements_class = elements_class
self.array_length = length
self.array_elements_extra_args = elements_extra_args
def __init__(self, parent, name, description=None):
FieldSet.__init__(self, parent, name, description)
self._size = self['chunk_size'].value* 8
type = self['type'].value
self.parse_func = None
if type in self.CHUNK_INFO:
self._name, self._description, self.parse_func, value_func = self.CHUNK_INFO[type]
if value_func:
self.createValue = lambda: value_func(self)
def __init__(self, *args):
FieldSet.__init__(self, *args)
# TODO: Remove this because it's not lazy?
key = self["key"]
if not key.hasValue():
return
key = key.value
self._name = str(key).replace(" ", "_")
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
tag = self["guid"].value
if tag not in self.TAG_INFO:
self.handler = None
return
info = self.TAG_INFO[tag]
self._name = info[0]
self.handler = info[1]
def __init__(self, parent, name, inode=None):
FieldSet.__init__(self, parent, name)
self.inode = inode
def __init__(self, parent, name, use_fourcc=False):
FieldSet.__init__(self, parent, name)
self._use_fourcc = use_fourcc
def __init__(self, parent, name, res_type=None):
FieldSet.__init__(self, parent, name)
self.res_type = res_type
def __init__(self, *args):
FieldSet.__init__(self, *args)
if self["code"].value != self.NOP:
self._size = self["length"].value * 8
else:
self._size = 8
def __init__(self, *args):
FieldSet.__init__(self, *args)
count = self["count"]
self._size = count.size + count.value * (32*8)
def _createInputStream(self, **args):
first = self.first
if first is self and hasattr(first, "_getData"):
return FragmentedStream(first, packets=Fragments(first), **args)
return FieldSet._createInputStream(self, **args)
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = self["entry_length"].value *8
def __init__(self, parent, name, zoomIntervalCfg, **kw):
FieldSet.__init__(self, parent, name, **kw)
self.zoomIntervalCfg = zoomIntervalCfg
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["hdr_size"].value * 32
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = (self["size"].value + 2) * 8
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
if self["length"].value:
self._size = self["length"].value * 8
else:
self._size = 16
def __init__(self, parent, name, dc_tree, ac_tree, *args, **kwargs):
FieldSet.__init__(self, parent, name, *args, **kwargs)
self.dc_tree = dc_tree
self.ac_tree = ac_tree
def __init__(self, parent, name, dxt2_mode=False, *args, **kwargs):
"""with dxt2_mode on, this field will always use the four color model"""
FieldSet.__init__(self, parent, name, *args, **kwargs)
self.dxt2_mode = dxt2_mode
def __init__(self, parent, name, uncomp_data="", *args, **kwargs):
FieldSet.__init__(self, parent, name, *args, **kwargs)
self.uncomp_data = uncomp_data
def __init__(self, parent, name, is_32bit=True):
FieldSet.__init__(self, parent, name)
self._size = alignValue(self["size"].value, 4) * 8
self.is_32bit = is_32bit
def __init__(self, parent, name, parser, first_name):
FieldSet.__init__(self, parent, name)
self._size = (16 + self["caplen"].value) * 8
self._first_parser = parser
self._first_name = first_name
def __init__(self, parent, name, size, description=None):
FieldSet.__init__(self, parent, name, description=description)
self._size = size * 8
def __init__(self, *args):
FieldSet.__init__(self, *args)
if self["has_error"].value:
self._size = 204 * 8
else:
self._size = 188 * 8
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._field_generator = self._createFields(self._field_generator)
if self.__class__.createFields == Fragment.createFields:
self._getData = lambda: self
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["/width"].value * self["/height"].value * self[
"/bpp"].value
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = 28 * 8
def __init__(self, parent, name):
FieldSet.__init__(self, parent, name)
self._size = alignValue(self["size"].value, 4) * 8
def __init__(self, *args):
FieldSet.__init__(self, *args)
def __init__(self, parent, name, res_type=None):
FieldSet.__init__(self, parent, name)
nb_entries = self["header/nb_name"].value + self[
"header/nb_index"].value
self._size = Header.static_size + nb_entries * 64
self.res_type = res_type
def __init__(self, parent, name, start, count):
FieldSet.__init__(self, parent, name)
self.start = start
self.count = count
self._size = self.count * self["/superblock/inode_size"].value * 8
def __init__(self, parent, name, index):
FieldSet.__init__(self, parent, name, None)
self.uniq_id = 1 + index
def __init__(self, parent, name, size, parser, description=None, group=None):
FieldSet.__init__(self, parent, name, description, size=size)
if not group:
group = FragmentGroup(parser)
self.group = group
self.group.add(self)
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = self["rec_len"].value * 8
def __init__(self, *args):
FieldSet.__init__(self, *args)
self.version = self.stream.readBits(
self.absolute_address + 32 + 16 + 12, 4, self.endian)
def __init__(self, parent, name, count):
FieldSet.__init__(self, parent, name)
self.count = count
