SQLite3 is a popular serverless SQL engine, implemented as a library to be used within other applications. It keeps its databases as regular disk files.
Every database file is segmented into pages. First page (starting at the very beginning) is special: it contains a file-global header which specifies some data relevant to proper parsing (i.e. format versions, size of page, etc). After the header, normal contents of the first page follow.
Each page would be of some type, and generally, they would be
reached via the links starting from the first page. First page type
(root_page) is always "btree_page".
This page hosts a formal specification of SQLite3 database file using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
# type: ignore
import kaitaistruct
from kaitaistruct import ReadWriteKaitaiStruct, KaitaiStream, BytesIO
import vlq_base128_be
from enum import IntEnum
if getattr(kaitaistruct, 'API_VERSION', (0, 9)) < (0, 11):
raise Exception("Incompatible Kaitai Struct Python API: 0.11 or later is required, but you have %s" % (kaitaistruct.__version__))
class Sqlite3(ReadWriteKaitaiStruct):
"""SQLite3 is a popular serverless SQL engine, implemented as a library
to be used within other applications. It keeps its databases as
regular disk files.
Every database file is segmented into pages. First page (starting at
the very beginning) is special: it contains a file-global header
which specifies some data relevant to proper parsing (i.e. format
versions, size of page, etc). After the header, normal contents of
the first page follow.
Each page would be of some type, and generally, they would be
reached via the links starting from the first page. First page type
(`root_page`) is always "btree_page".
.. seealso::
Source - https://www.sqlite.org/fileformat.html
"""
class Encodings(IntEnum):
utf_8 = 1
utf_16le = 2
utf_16be = 3
class Versions(IntEnum):
legacy = 1
wal = 2
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3, self).__init__(_io)
self._parent = _parent
self._root = _root or self
def _read(self):
self.magic = self._io.read_bytes(16)
if not self.magic == b"\x53\x51\x4C\x69\x74\x65\x20\x66\x6F\x72\x6D\x61\x74\x20\x33\x00":
raise kaitaistruct.ValidationNotEqualError(b"\x53\x51\x4C\x69\x74\x65\x20\x66\x6F\x72\x6D\x61\x74\x20\x33\x00", self.magic, self._io, u"/seq/0")
self.len_page_mod = self._io.read_u2be()
self.write_version = KaitaiStream.resolve_enum(Sqlite3.Versions, self._io.read_u1())
self.read_version = KaitaiStream.resolve_enum(Sqlite3.Versions, self._io.read_u1())
self.reserved_space = self._io.read_u1()
self.max_payload_frac = self._io.read_u1()
self.min_payload_frac = self._io.read_u1()
self.leaf_payload_frac = self._io.read_u1()
self.file_change_counter = self._io.read_u4be()
self.num_pages = self._io.read_u4be()
self.first_freelist_trunk_page = self._io.read_u4be()
self.num_freelist_pages = self._io.read_u4be()
self.schema_cookie = self._io.read_u4be()
self.schema_format = self._io.read_u4be()
self.def_page_cache_size = self._io.read_u4be()
self.largest_root_page = self._io.read_u4be()
self.text_encoding = KaitaiStream.resolve_enum(Sqlite3.Encodings, self._io.read_u4be())
self.user_version = self._io.read_u4be()
self.is_incremental_vacuum = self._io.read_u4be()
self.application_id = self._io.read_u4be()
self.reserved = self._io.read_bytes(20)
self.version_valid_for = self._io.read_u4be()
self.sqlite_version_number = self._io.read_u4be()
self.root_page = Sqlite3.BtreePage(self._io, self, self._root)
self.root_page._read()
self._dirty = False
def _fetch_instances(self):
pass
self.root_page._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3, self)._write__seq(io)
self._io.write_bytes(self.magic)
self._io.write_u2be(self.len_page_mod)
self._io.write_u1(int(self.write_version))
self._io.write_u1(int(self.read_version))
self._io.write_u1(self.reserved_space)
self._io.write_u1(self.max_payload_frac)
self._io.write_u1(self.min_payload_frac)
self._io.write_u1(self.leaf_payload_frac)
self._io.write_u4be(self.file_change_counter)
self._io.write_u4be(self.num_pages)
self._io.write_u4be(self.first_freelist_trunk_page)
self._io.write_u4be(self.num_freelist_pages)
self._io.write_u4be(self.schema_cookie)
self._io.write_u4be(self.schema_format)
self._io.write_u4be(self.def_page_cache_size)
self._io.write_u4be(self.largest_root_page)
self._io.write_u4be(int(self.text_encoding))
self._io.write_u4be(self.user_version)
self._io.write_u4be(self.is_incremental_vacuum)
self._io.write_u4be(self.application_id)
self._io.write_bytes(self.reserved)
self._io.write_u4be(self.version_valid_for)
self._io.write_u4be(self.sqlite_version_number)
self.root_page._write__seq(self._io)
def _check(self):
if len(self.magic) != 16:
raise kaitaistruct.ConsistencyError(u"magic", 16, len(self.magic))
if not self.magic == b"\x53\x51\x4C\x69\x74\x65\x20\x66\x6F\x72\x6D\x61\x74\x20\x33\x00":
raise kaitaistruct.ValidationNotEqualError(b"\x53\x51\x4C\x69\x74\x65\x20\x66\x6F\x72\x6D\x61\x74\x20\x33\x00", self.magic, None, u"/seq/0")
if len(self.reserved) != 20:
raise kaitaistruct.ConsistencyError(u"reserved", 20, len(self.reserved))
if self.root_page._root != self._root:
raise kaitaistruct.ConsistencyError(u"root_page", self._root, self.root_page._root)
if self.root_page._parent != self:
raise kaitaistruct.ConsistencyError(u"root_page", self, self.root_page._parent)
self._dirty = False
class BtreePage(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.BtreePage, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.page_type = self._io.read_u1()
self.first_freeblock = self._io.read_u2be()
self.num_cells = self._io.read_u2be()
self.ofs_cells = self._io.read_u2be()
self.num_frag_free_bytes = self._io.read_u1()
if ((self.page_type == 2) or (self.page_type == 5)) :
pass
self.right_ptr = self._io.read_u4be()
self.cells = []
for i in range(self.num_cells):
_t_cells = Sqlite3.RefCell(self._io, self, self._root)
try:
_t_cells._read()
finally:
self.cells.append(_t_cells)
self._dirty = False
def _fetch_instances(self):
pass
if ((self.page_type == 2) or (self.page_type == 5)) :
pass
for i in range(len(self.cells)):
pass
self.cells[i]._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.BtreePage, self)._write__seq(io)
self._io.write_u1(self.page_type)
self._io.write_u2be(self.first_freeblock)
self._io.write_u2be(self.num_cells)
self._io.write_u2be(self.ofs_cells)
self._io.write_u1(self.num_frag_free_bytes)
if ((self.page_type == 2) or (self.page_type == 5)) :
pass
self._io.write_u4be(self.right_ptr)
for i in range(len(self.cells)):
pass
self.cells[i]._write__seq(self._io)
def _check(self):
if ((self.page_type == 2) or (self.page_type == 5)) :
pass
if len(self.cells) != self.num_cells:
raise kaitaistruct.ConsistencyError(u"cells", self.num_cells, len(self.cells))
for i in range(len(self.cells)):
pass
if self.cells[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"cells", self._root, self.cells[i]._root)
if self.cells[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"cells", self, self.cells[i]._parent)
self._dirty = False
class CellIndexInterior(ReadWriteKaitaiStruct):
"""
.. seealso::
Source - https://www.sqlite.org/fileformat.html#b_tree_pages
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.CellIndexInterior, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.left_child_page = self._io.read_u4be()
self.len_payload = vlq_base128_be.VlqBase128Be(self._io)
self.len_payload._read()
self._raw_payload = self._io.read_bytes(self.len_payload.value)
_io__raw_payload = KaitaiStream(BytesIO(self._raw_payload))
self.payload = Sqlite3.CellPayload(_io__raw_payload, self, self._root)
self.payload._read()
self._dirty = False
def _fetch_instances(self):
pass
self.len_payload._fetch_instances()
self.payload._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.CellIndexInterior, self)._write__seq(io)
self._io.write_u4be(self.left_child_page)
self.len_payload._write__seq(self._io)
_io__raw_payload = KaitaiStream(BytesIO(bytearray(self.len_payload.value)))
self._io.add_child_stream(_io__raw_payload)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.len_payload.value))
def handler(parent, _io__raw_payload=_io__raw_payload):
self._raw_payload = _io__raw_payload.to_byte_array()
if len(self._raw_payload) != self.len_payload.value:
raise kaitaistruct.ConsistencyError(u"raw(payload)", self.len_payload.value, len(self._raw_payload))
parent.write_bytes(self._raw_payload)
_io__raw_payload.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.payload._write__seq(_io__raw_payload)
def _check(self):
if self.payload._root != self._root:
raise kaitaistruct.ConsistencyError(u"payload", self._root, self.payload._root)
if self.payload._parent != self:
raise kaitaistruct.ConsistencyError(u"payload", self, self.payload._parent)
self._dirty = False
class CellIndexLeaf(ReadWriteKaitaiStruct):
"""
.. seealso::
Source - https://www.sqlite.org/fileformat.html#b_tree_pages
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.CellIndexLeaf, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.len_payload = vlq_base128_be.VlqBase128Be(self._io)
self.len_payload._read()
self._raw_payload = self._io.read_bytes(self.len_payload.value)
_io__raw_payload = KaitaiStream(BytesIO(self._raw_payload))
self.payload = Sqlite3.CellPayload(_io__raw_payload, self, self._root)
self.payload._read()
self._dirty = False
def _fetch_instances(self):
pass
self.len_payload._fetch_instances()
self.payload._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.CellIndexLeaf, self)._write__seq(io)
self.len_payload._write__seq(self._io)
_io__raw_payload = KaitaiStream(BytesIO(bytearray(self.len_payload.value)))
self._io.add_child_stream(_io__raw_payload)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.len_payload.value))
def handler(parent, _io__raw_payload=_io__raw_payload):
self._raw_payload = _io__raw_payload.to_byte_array()
if len(self._raw_payload) != self.len_payload.value:
raise kaitaistruct.ConsistencyError(u"raw(payload)", self.len_payload.value, len(self._raw_payload))
parent.write_bytes(self._raw_payload)
_io__raw_payload.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.payload._write__seq(_io__raw_payload)
def _check(self):
if self.payload._root != self._root:
raise kaitaistruct.ConsistencyError(u"payload", self._root, self.payload._root)
if self.payload._parent != self:
raise kaitaistruct.ConsistencyError(u"payload", self, self.payload._parent)
self._dirty = False
class CellPayload(ReadWriteKaitaiStruct):
"""
.. seealso::
Source - https://sqlite.org/fileformat2.html#record_format
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.CellPayload, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.len_header_and_len = vlq_base128_be.VlqBase128Be(self._io)
self.len_header_and_len._read()
self._raw_column_serials = self._io.read_bytes(self.len_header_and_len.value - 1)
_io__raw_column_serials = KaitaiStream(BytesIO(self._raw_column_serials))
self.column_serials = Sqlite3.Serials(_io__raw_column_serials, self, self._root)
self.column_serials._read()
self.column_contents = []
for i in range(len(self.column_serials.entries)):
_t_column_contents = Sqlite3.ColumnContent(self.column_serials.entries[i], self._io, self, self._root)
try:
_t_column_contents._read()
finally:
self.column_contents.append(_t_column_contents)
self._dirty = False
def _fetch_instances(self):
pass
self.len_header_and_len._fetch_instances()
self.column_serials._fetch_instances()
for i in range(len(self.column_contents)):
pass
self.column_contents[i]._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.CellPayload, self)._write__seq(io)
self.len_header_and_len._write__seq(self._io)
_io__raw_column_serials = KaitaiStream(BytesIO(bytearray(self.len_header_and_len.value - 1)))
self._io.add_child_stream(_io__raw_column_serials)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.len_header_and_len.value - 1))
def handler(parent, _io__raw_column_serials=_io__raw_column_serials):
self._raw_column_serials = _io__raw_column_serials.to_byte_array()
if len(self._raw_column_serials) != self.len_header_and_len.value - 1:
raise kaitaistruct.ConsistencyError(u"raw(column_serials)", self.len_header_and_len.value - 1, len(self._raw_column_serials))
parent.write_bytes(self._raw_column_serials)
_io__raw_column_serials.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.column_serials._write__seq(_io__raw_column_serials)
for i in range(len(self.column_contents)):
pass
self.column_contents[i]._write__seq(self._io)
def _check(self):
if self.column_serials._root != self._root:
raise kaitaistruct.ConsistencyError(u"column_serials", self._root, self.column_serials._root)
if self.column_serials._parent != self:
raise kaitaistruct.ConsistencyError(u"column_serials", self, self.column_serials._parent)
if len(self.column_contents) != len(self.column_serials.entries):
raise kaitaistruct.ConsistencyError(u"column_contents", len(self.column_serials.entries), len(self.column_contents))
for i in range(len(self.column_contents)):
pass
if self.column_contents[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"column_contents", self._root, self.column_contents[i]._root)
if self.column_contents[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"column_contents", self, self.column_contents[i]._parent)
if self.column_contents[i].serial_type != self.column_serials.entries[i]:
raise kaitaistruct.ConsistencyError(u"column_contents", self.column_serials.entries[i], self.column_contents[i].serial_type)
self._dirty = False
class CellTableInterior(ReadWriteKaitaiStruct):
"""
.. seealso::
Source - https://www.sqlite.org/fileformat.html#b_tree_pages
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.CellTableInterior, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.left_child_page = self._io.read_u4be()
self.row_id = vlq_base128_be.VlqBase128Be(self._io)
self.row_id._read()
self._dirty = False
def _fetch_instances(self):
pass
self.row_id._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.CellTableInterior, self)._write__seq(io)
self._io.write_u4be(self.left_child_page)
self.row_id._write__seq(self._io)
def _check(self):
self._dirty = False
class CellTableLeaf(ReadWriteKaitaiStruct):
"""
.. seealso::
Source - https://www.sqlite.org/fileformat.html#b_tree_pages
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.CellTableLeaf, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.len_payload = vlq_base128_be.VlqBase128Be(self._io)
self.len_payload._read()
self.row_id = vlq_base128_be.VlqBase128Be(self._io)
self.row_id._read()
self._raw_payload = self._io.read_bytes(self.len_payload.value)
_io__raw_payload = KaitaiStream(BytesIO(self._raw_payload))
self.payload = Sqlite3.CellPayload(_io__raw_payload, self, self._root)
self.payload._read()
self._dirty = False
def _fetch_instances(self):
pass
self.len_payload._fetch_instances()
self.row_id._fetch_instances()
self.payload._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.CellTableLeaf, self)._write__seq(io)
self.len_payload._write__seq(self._io)
self.row_id._write__seq(self._io)
_io__raw_payload = KaitaiStream(BytesIO(bytearray(self.len_payload.value)))
self._io.add_child_stream(_io__raw_payload)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.len_payload.value))
def handler(parent, _io__raw_payload=_io__raw_payload):
self._raw_payload = _io__raw_payload.to_byte_array()
if len(self._raw_payload) != self.len_payload.value:
raise kaitaistruct.ConsistencyError(u"raw(payload)", self.len_payload.value, len(self._raw_payload))
parent.write_bytes(self._raw_payload)
_io__raw_payload.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.payload._write__seq(_io__raw_payload)
def _check(self):
if self.payload._root != self._root:
raise kaitaistruct.ConsistencyError(u"payload", self._root, self.payload._root)
if self.payload._parent != self:
raise kaitaistruct.ConsistencyError(u"payload", self, self.payload._parent)
self._dirty = False
class ColumnContent(ReadWriteKaitaiStruct):
def __init__(self, serial_type, _io=None, _parent=None, _root=None):
super(Sqlite3.ColumnContent, self).__init__(_io)
self._parent = _parent
self._root = _root
self.serial_type = serial_type
def _read(self):
if ((self.serial_type.code.value >= 1) and (self.serial_type.code.value <= 6)) :
pass
_on = self.serial_type.code.value
if _on == 1:
pass
self.as_int = self._io.read_u1()
elif _on == 2:
pass
self.as_int = self._io.read_u2be()
elif _on == 3:
pass
self.as_int = self._io.read_bits_int_be(24)
elif _on == 4:
pass
self.as_int = self._io.read_u4be()
elif _on == 5:
pass
self.as_int = self._io.read_bits_int_be(48)
elif _on == 6:
pass
self.as_int = self._io.read_u8be()
if self.serial_type.code.value == 7:
pass
self.as_float = self._io.read_f8be()
if self.serial_type.is_blob:
pass
self.as_blob = self._io.read_bytes(self.serial_type.len_content)
self.as_str = (self._io.read_bytes(self.serial_type.len_content)).decode(u"UTF-8")
self._dirty = False
def _fetch_instances(self):
pass
if ((self.serial_type.code.value >= 1) and (self.serial_type.code.value <= 6)) :
pass
_on = self.serial_type.code.value
if _on == 1:
pass
elif _on == 2:
pass
elif _on == 3:
pass
elif _on == 4:
pass
elif _on == 5:
pass
elif _on == 6:
pass
if self.serial_type.code.value == 7:
pass
if self.serial_type.is_blob:
pass
def _write__seq(self, io=None):
super(Sqlite3.ColumnContent, self)._write__seq(io)
if ((self.serial_type.code.value >= 1) and (self.serial_type.code.value <= 6)) :
pass
_on = self.serial_type.code.value
if _on == 1:
pass
self._io.write_u1(self.as_int)
elif _on == 2:
pass
self._io.write_u2be(self.as_int)
elif _on == 3:
pass
self._io.write_bits_int_be(24, self.as_int)
elif _on == 4:
pass
self._io.write_u4be(self.as_int)
elif _on == 5:
pass
self._io.write_bits_int_be(48, self.as_int)
elif _on == 6:
pass
self._io.write_u8be(self.as_int)
if self.serial_type.code.value == 7:
pass
self._io.write_f8be(self.as_float)
if self.serial_type.is_blob:
pass
self._io.write_bytes(self.as_blob)
self._io.write_bytes((self.as_str).encode(u"UTF-8"))
def _check(self):
if ((self.serial_type.code.value >= 1) and (self.serial_type.code.value <= 6)) :
pass
_on = self.serial_type.code.value
if _on == 1:
pass
elif _on == 2:
pass
elif _on == 3:
pass
elif _on == 4:
pass
elif _on == 5:
pass
elif _on == 6:
pass
if self.serial_type.code.value == 7:
pass
if self.serial_type.is_blob:
pass
if len(self.as_blob) != self.serial_type.len_content:
raise kaitaistruct.ConsistencyError(u"as_blob", self.serial_type.len_content, len(self.as_blob))
if len((self.as_str).encode(u"UTF-8")) != self.serial_type.len_content:
raise kaitaistruct.ConsistencyError(u"as_str", self.serial_type.len_content, len((self.as_str).encode(u"UTF-8")))
self._dirty = False
class RefCell(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.RefCell, self).__init__(_io)
self._parent = _parent
self._root = _root
self._should_write_body = False
self.body__enabled = True
def _read(self):
self.ofs_body = self._io.read_u2be()
self._dirty = False
def _fetch_instances(self):
pass
_ = self.body
if hasattr(self, '_m_body'):
pass
_on = self._parent.page_type
if _on == 10:
pass
self._m_body._fetch_instances()
elif _on == 13:
pass
self._m_body._fetch_instances()
elif _on == 2:
pass
self._m_body._fetch_instances()
elif _on == 5:
pass
self._m_body._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.RefCell, self)._write__seq(io)
self._should_write_body = self.body__enabled
self._io.write_u2be(self.ofs_body)
def _check(self):
if self.body__enabled:
pass
_on = self._parent.page_type
if _on == 10:
pass
if self._m_body._root != self._root:
raise kaitaistruct.ConsistencyError(u"body", self._root, self._m_body._root)
if self._m_body._parent != self:
raise kaitaistruct.ConsistencyError(u"body", self, self._m_body._parent)
elif _on == 13:
pass
if self._m_body._root != self._root:
raise kaitaistruct.ConsistencyError(u"body", self._root, self._m_body._root)
if self._m_body._parent != self:
raise kaitaistruct.ConsistencyError(u"body", self, self._m_body._parent)
elif _on == 2:
pass
if self._m_body._root != self._root:
raise kaitaistruct.ConsistencyError(u"body", self._root, self._m_body._root)
if self._m_body._parent != self:
raise kaitaistruct.ConsistencyError(u"body", self, self._m_body._parent)
elif _on == 5:
pass
if self._m_body._root != self._root:
raise kaitaistruct.ConsistencyError(u"body", self._root, self._m_body._root)
if self._m_body._parent != self:
raise kaitaistruct.ConsistencyError(u"body", self, self._m_body._parent)
self._dirty = False
@property
def body(self):
if self._should_write_body:
self._write_body()
if hasattr(self, '_m_body'):
return self._m_body
if not self.body__enabled:
return None
_pos = self._io.pos()
self._io.seek(self.ofs_body)
_on = self._parent.page_type
if _on == 10:
pass
self._m_body = Sqlite3.CellIndexLeaf(self._io, self, self._root)
self._m_body._read()
elif _on == 13:
pass
self._m_body = Sqlite3.CellTableLeaf(self._io, self, self._root)
self._m_body._read()
elif _on == 2:
pass
self._m_body = Sqlite3.CellIndexInterior(self._io, self, self._root)
self._m_body._read()
elif _on == 5:
pass
self._m_body = Sqlite3.CellTableInterior(self._io, self, self._root)
self._m_body._read()
self._io.seek(_pos)
return getattr(self, '_m_body', None)
@body.setter
def body(self, v):
self._dirty = True
self._m_body = v
def _write_body(self):
self._should_write_body = False
_pos = self._io.pos()
self._io.seek(self.ofs_body)
_on = self._parent.page_type
if _on == 10:
pass
self._m_body._write__seq(self._io)
elif _on == 13:
pass
self._m_body._write__seq(self._io)
elif _on == 2:
pass
self._m_body._write__seq(self._io)
elif _on == 5:
pass
self._m_body._write__seq(self._io)
self._io.seek(_pos)
class Serial(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.Serial, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.code = vlq_base128_be.VlqBase128Be(self._io)
self.code._read()
self._dirty = False
def _fetch_instances(self):
pass
self.code._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.Serial, self)._write__seq(io)
self.code._write__seq(self._io)
def _check(self):
self._dirty = False
@property
def is_blob(self):
if hasattr(self, '_m_is_blob'):
return self._m_is_blob
self._m_is_blob = ((self.code.value >= 12) and (self.code.value % 2 == 0))
return getattr(self, '_m_is_blob', None)
def _invalidate_is_blob(self):
del self._m_is_blob
@property
def is_string(self):
if hasattr(self, '_m_is_string'):
return self._m_is_string
self._m_is_string = ((self.code.value >= 13) and (self.code.value % 2 == 1))
return getattr(self, '_m_is_string', None)
def _invalidate_is_string(self):
del self._m_is_string
@property
def len_content(self):
if hasattr(self, '_m_len_content'):
return self._m_len_content
if self.code.value >= 12:
pass
self._m_len_content = (self.code.value - 12) // 2
return getattr(self, '_m_len_content', None)
def _invalidate_len_content(self):
del self._m_len_content
class Serials(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(Sqlite3.Serials, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.entries = []
i = 0
while not self._io.is_eof():
_t_entries = Sqlite3.Serial(self._io, self, self._root)
try:
_t_entries._read()
finally:
self.entries.append(_t_entries)
i += 1
self._dirty = False
def _fetch_instances(self):
pass
for i in range(len(self.entries)):
pass
self.entries[i]._fetch_instances()
def _write__seq(self, io=None):
super(Sqlite3.Serials, self)._write__seq(io)
for i in range(len(self.entries)):
pass
if self._io.is_eof():
raise kaitaistruct.ConsistencyError(u"entries", 0, self._io.size() - self._io.pos())
self.entries[i]._write__seq(self._io)
if not self._io.is_eof():
raise kaitaistruct.ConsistencyError(u"entries", 0, self._io.size() - self._io.pos())
def _check(self):
for i in range(len(self.entries)):
pass
if self.entries[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"entries", self._root, self.entries[i]._root)
if self.entries[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"entries", self, self.entries[i]._parent)
self._dirty = False
@property
def len_page(self):
if hasattr(self, '_m_len_page'):
return self._m_len_page
self._m_len_page = (65536 if self.len_page_mod == 1 else self.len_page_mod)
return getattr(self, '_m_len_page', None)
def _invalidate_len_page(self):
del self._m_len_page