mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-24 11:43:38 +00:00
611 lines
21 KiB
Python
611 lines
21 KiB
Python
"""
|
|
Python compiled source code parser.
|
|
|
|
Informations:
|
|
- Python 2.4.2 source code:
|
|
files Python/marshal.c and Python/import.c
|
|
|
|
Author: Victor Stinner
|
|
Creation: 25 march 2005
|
|
"""
|
|
|
|
from hachoir.parser import Parser
|
|
from hachoir.field import (
|
|
Field, FieldSet, UInt8,
|
|
UInt16, Int32, UInt32, Int64, UInt64,
|
|
ParserError, Float64,
|
|
Character, RawBytes, PascalString8, TimestampUnix32,
|
|
Bit, String, NullBits)
|
|
from hachoir.core.endian import LITTLE_ENDIAN
|
|
from hachoir.core.bits import long2raw
|
|
from hachoir.core.text_handler import textHandler, hexadecimal
|
|
from hachoir.core import config
|
|
|
|
DISASSEMBLE = False
|
|
|
|
if DISASSEMBLE:
|
|
from dis import dis
|
|
|
|
def disassembleBytecode(field):
|
|
bytecode = field.value
|
|
dis(bytecode)
|
|
|
|
# --- String and string reference ---
|
|
|
|
|
|
def parseString(parent):
|
|
yield UInt32(parent, "length", "Length")
|
|
length = parent["length"].value
|
|
if parent.name == "lnotab":
|
|
bytecode_offset = 0
|
|
line_number = parent['../firstlineno'].value
|
|
for i in range(0, length, 2):
|
|
bc_off_delta = UInt8(parent, 'bytecode_offset_delta[]')
|
|
yield bc_off_delta
|
|
bytecode_offset += bc_off_delta.value
|
|
bc_off_delta._description = 'Bytecode Offset %i' % bytecode_offset
|
|
line_number_delta = UInt8(parent, 'line_number_delta[]')
|
|
yield line_number_delta
|
|
line_number += line_number_delta.value
|
|
line_number_delta._description = 'Line Number %i' % line_number
|
|
elif 0 < length:
|
|
yield RawBytes(parent, "text", length, "Content")
|
|
if DISASSEMBLE and parent.name == "compiled_code":
|
|
disassembleBytecode(parent["text"])
|
|
|
|
|
|
def createStringValue(parent):
|
|
if parent.name == "lnotab":
|
|
return "<lnotab>"
|
|
return parent["text"]
|
|
|
|
|
|
def parseStringRef(parent):
|
|
yield textHandler(UInt32(parent, "ref"), hexadecimal)
|
|
|
|
|
|
def createStringRefDesc(parent):
|
|
return "String ref: %s" % parent["ref"].display
|
|
|
|
|
|
def createStringRefValue(parent):
|
|
value = parent["ref"].value
|
|
if hasattr(parent.root, 'string_table') and 0 <= value < len(parent.root.string_table):
|
|
return parent.root.string_table[value]
|
|
return None
|
|
|
|
# --- Integers ---
|
|
|
|
|
|
def parseInt32(parent):
|
|
yield Int32(parent, "value")
|
|
|
|
|
|
def parseInt64(parent):
|
|
yield Int64(parent, "value")
|
|
|
|
|
|
def createIntValue(parent):
|
|
return parent["value"]
|
|
|
|
|
|
def parseLong(parent):
|
|
yield Int32(parent, "digit_count")
|
|
for index in range(abs(parent["digit_count"].value)):
|
|
yield UInt16(parent, "digit[]")
|
|
|
|
|
|
def createLongValue(parent):
|
|
is_negative = parent["digit_count"].value < 0
|
|
count = abs(parent["digit_count"].value)
|
|
total = 0
|
|
for index in range(count - 1, -1, -1):
|
|
total <<= 15
|
|
total += parent["digit[%u]" % index].value
|
|
if is_negative:
|
|
total = -total
|
|
return total
|
|
|
|
|
|
# --- Float and complex ---
|
|
def parseFloat(parent):
|
|
yield PascalString8(parent, "value")
|
|
|
|
|
|
def createFloatValue(parent):
|
|
return float(parent["value"].value)
|
|
|
|
|
|
def parseBinaryFloat(parent):
|
|
yield Float64(parent, "value")
|
|
|
|
|
|
def parseComplex(parent):
|
|
yield PascalString8(parent, "real")
|
|
yield PascalString8(parent, "complex")
|
|
|
|
|
|
def parseBinaryComplex(parent):
|
|
yield Float64(parent, "real")
|
|
yield Float64(parent, "complex")
|
|
|
|
|
|
def createComplexValue(parent):
|
|
return complex(
|
|
float(parent["real"].value),
|
|
float(parent["complex"].value))
|
|
|
|
|
|
# --- Tuple and list ---
|
|
def parseTuple(parent):
|
|
yield UInt32(parent, "count", "Item count")
|
|
count = parent["count"].value
|
|
if count < 0:
|
|
raise ParserError("Invalid tuple/list count")
|
|
for index in range(count):
|
|
yield Object(parent, "item[]")
|
|
|
|
|
|
def parseSmallTuple(parent):
|
|
yield UInt8(parent, "count", "Item count")
|
|
count = parent["count"].value
|
|
if count < 0:
|
|
raise ParserError("Invalid tuple/list count")
|
|
for index in range(count):
|
|
yield Object(parent, "item[]")
|
|
|
|
|
|
def createTupleDesc(parent):
|
|
count = parent["count"].value
|
|
items = "%s items" % count
|
|
return "%s: %s" % (parent.code_info[2], items)
|
|
|
|
|
|
def tupleValueCreator(constructor):
|
|
def createTupleValue(parent):
|
|
return constructor([v.value for v in parent.array("item")])
|
|
return createTupleValue
|
|
|
|
|
|
# --- Dict ---
|
|
def parseDict(parent):
|
|
"""
|
|
Format is: (key1, value1, key2, value2, ..., keyn, valuen, NULL)
|
|
where each keyi and valuei is an object.
|
|
"""
|
|
parent.count = 0
|
|
while True:
|
|
key = Object(parent, "key[]")
|
|
yield key
|
|
if key["bytecode"].value == "0":
|
|
break
|
|
yield Object(parent, "value[]")
|
|
parent.count += 1
|
|
|
|
|
|
def createDictDesc(parent):
|
|
return "Dict: %s" % ("%s keys" % parent.count)
|
|
|
|
|
|
def createDictValue(parent):
|
|
return {k.value: v.value for k, v in zip(parent.array("key"), parent.array("value"))}
|
|
|
|
|
|
def parseRef(parent):
|
|
yield UInt32(parent, "n", "Reference")
|
|
|
|
|
|
def createRefDesc(parent):
|
|
value = parent["n"].value
|
|
if hasattr(parent.root, 'object_table') and 0 <= value < len(parent.root.object_table):
|
|
return 'Reference: %s' % parent.root.object_table[value].description
|
|
else:
|
|
return 'Reference: %d' % value
|
|
|
|
|
|
def createRefValue(parent):
|
|
value = parent["n"].value
|
|
if hasattr(parent.root, 'object_table') and 0 <= value < len(parent.root.object_table):
|
|
return parent.root.object_table[value]
|
|
else:
|
|
return None
|
|
|
|
|
|
def parseASCII(parent):
|
|
size = UInt32(parent, "len", "Number of ASCII characters")
|
|
yield size
|
|
if size.value:
|
|
yield String(parent, "text", size.value, "String content", charset="ASCII")
|
|
|
|
|
|
def parseShortASCII(parent):
|
|
size = UInt8(parent, "len", "Number of ASCII characters")
|
|
yield size
|
|
if size.value:
|
|
yield String(parent, "text", size.value, "String content", charset="ASCII")
|
|
|
|
# --- Code ---
|
|
|
|
|
|
def parseCode(parent):
|
|
version = parent.root.getVersion()
|
|
if 0x3000000 <= version:
|
|
yield UInt32(parent, "arg_count", "Argument count")
|
|
if 0x3080000 <= version:
|
|
yield UInt32(parent, "posonlyargcount", "Positional only argument count")
|
|
yield UInt32(parent, "kwonlyargcount", "Keyword only argument count")
|
|
if version < 0x30B0000:
|
|
yield UInt32(parent, "nb_locals", "Number of local variables")
|
|
yield UInt32(parent, "stack_size", "Stack size")
|
|
yield UInt32(parent, "flags")
|
|
elif 0x2030000 <= version:
|
|
yield UInt32(parent, "arg_count", "Argument count")
|
|
yield UInt32(parent, "nb_locals", "Number of local variables")
|
|
yield UInt32(parent, "stack_size", "Stack size")
|
|
yield UInt32(parent, "flags")
|
|
else:
|
|
yield UInt16(parent, "arg_count", "Argument count")
|
|
yield UInt16(parent, "nb_locals", "Number of local variables")
|
|
yield UInt16(parent, "stack_size", "Stack size")
|
|
yield UInt16(parent, "flags")
|
|
|
|
yield Object(parent, "compiled_code")
|
|
yield Object(parent, "consts")
|
|
yield Object(parent, "names")
|
|
if 0x30B0000 <= version:
|
|
yield Object(parent, "co_localsplusnames")
|
|
yield Object(parent, "co_localspluskinds")
|
|
else:
|
|
yield Object(parent, "varnames")
|
|
if 0x2000000 <= version:
|
|
yield Object(parent, "freevars")
|
|
yield Object(parent, "cellvars")
|
|
|
|
yield Object(parent, "filename")
|
|
yield Object(parent, "name")
|
|
if 0x30B0000 <= version:
|
|
yield Object(parent, "qualname")
|
|
|
|
if 0x2030000 <= version:
|
|
yield UInt32(parent, "firstlineno", "First line number")
|
|
else:
|
|
yield UInt16(parent, "firstlineno", "First line number")
|
|
if 0x30A0000 <= version:
|
|
yield Object(parent, "linetable")
|
|
if 0x30B0000 <= version:
|
|
yield Object(parent, "exceptiontable")
|
|
else:
|
|
yield Object(parent, "lnotab")
|
|
|
|
|
|
class Object(FieldSet):
|
|
bytecode_info = {
|
|
# Don't contains any data
|
|
'0': ("null", None, "NULL", None, None),
|
|
'N': ("none", None, "None", None, lambda parent: None),
|
|
'F': ("false", None, "False", None, lambda parent: False),
|
|
'T': ("true", None, "True", None, lambda parent: True),
|
|
'S': ("stop_iter", None, "StopIter", None, None),
|
|
'.': ("ellipsis", None, "ELLIPSIS", None, lambda parent: ...),
|
|
'?': ("unknown", None, "Unknown", None, None),
|
|
|
|
'i': ("int32", parseInt32, "Int32", None, createIntValue),
|
|
'I': ("int64", parseInt64, "Int64", None, createIntValue),
|
|
'f': ("float", parseFloat, "Float", None, createFloatValue),
|
|
'g': ("bin_float", parseBinaryFloat, "Binary float", None, createFloatValue),
|
|
'x': ("complex", parseComplex, "Complex", None, createComplexValue),
|
|
'y': ("bin_complex", parseBinaryComplex, "Binary complex", None, createComplexValue),
|
|
'l': ("long", parseLong, "Long", None, createLongValue),
|
|
's': ("string", parseString, "String", None, createStringValue),
|
|
't': ("interned", parseString, "Interned", None, createStringValue),
|
|
'u': ("unicode", parseString, "Unicode", None, createStringValue),
|
|
'R': ("string_ref", parseStringRef, "String ref", createStringRefDesc, createStringRefValue),
|
|
'(': ("tuple", parseTuple, "Tuple", createTupleDesc, tupleValueCreator(tuple)),
|
|
')': ("small_tuple", parseSmallTuple, "Tuple", createTupleDesc, tupleValueCreator(tuple)),
|
|
'[': ("list", parseTuple, "List", createTupleDesc, tupleValueCreator(list)),
|
|
'<': ("set", parseTuple, "Set", createTupleDesc, tupleValueCreator(set)),
|
|
'>': ("frozenset", parseTuple, "Frozen set", createTupleDesc, tupleValueCreator(frozenset)),
|
|
'{': ("dict", parseDict, "Dict", createDictDesc, createDictValue),
|
|
'c': ("code", parseCode, "Code", None, None),
|
|
'r': ("ref", parseRef, "Reference", createRefDesc, createRefValue),
|
|
'a': ("ascii", parseASCII, "ASCII", None, createStringValue),
|
|
'A': ("ascii_interned", parseASCII, "ASCII interned", None, createStringValue),
|
|
'z': ("short_ascii", parseShortASCII, "Short ASCII", None, createStringValue),
|
|
'Z': ("short_ascii_interned", parseShortASCII, "Short ASCII interned", None, createStringValue),
|
|
}
|
|
|
|
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 %r at position %s'
|
|
% (code, self.absolute_address // 8))
|
|
self.code_info = self.bytecode_info[code]
|
|
if not name:
|
|
self._name = self.code_info[0]
|
|
if code in ("t", "A", "Z"):
|
|
if not hasattr(self.root, 'string_table'):
|
|
self.root.string_table = []
|
|
self.root.string_table.append(self)
|
|
|
|
def createValue(self):
|
|
create = self.code_info[4]
|
|
if create:
|
|
res = create(self)
|
|
if isinstance(res, Field):
|
|
return res.value
|
|
else:
|
|
return res
|
|
return None
|
|
|
|
def createDisplay(self):
|
|
create = self.code_info[4]
|
|
if create:
|
|
res = create(self)
|
|
if isinstance(res, Field):
|
|
return res.display
|
|
res = repr(res)
|
|
if len(res) >= config.max_string_length:
|
|
res = res[:config.max_string_length] + "..."
|
|
return res
|
|
return None
|
|
|
|
def createFields(self):
|
|
yield BytecodeChar(self, "bytecode", "Bytecode")
|
|
yield Bit(self, "flag_ref", "Is a reference?")
|
|
if self["flag_ref"].value:
|
|
if not hasattr(self.root, 'object_table'):
|
|
self.root.object_table = []
|
|
self.root.object_table.append(self)
|
|
parser = self.code_info[1]
|
|
if parser:
|
|
yield from parser(self)
|
|
|
|
def createDescription(self):
|
|
create = self.code_info[3]
|
|
if create:
|
|
return create(self)
|
|
else:
|
|
return self.code_info[2]
|
|
|
|
|
|
class BytecodeChar(Character):
|
|
static_size = 7
|
|
|
|
|
|
PY_RELEASE_LEVEL_ALPHA = 0xA
|
|
PY_RELEASE_LEVEL_FINAL = 0xF
|
|
|
|
|
|
def VERSION(major, minor, release_level=PY_RELEASE_LEVEL_FINAL, serial=0):
|
|
micro = 0
|
|
return ((major << 24) + (minor << 16) + (micro << 8)
|
|
+ (release_level << 4) + (serial << 0))
|
|
|
|
|
|
class PythonCompiledFile(Parser):
|
|
PARSER_TAGS = {
|
|
"id": "python",
|
|
"category": "program",
|
|
"file_ext": ("pyc", "pyo"),
|
|
"min_size": 9 * 8,
|
|
"description": "Compiled Python script (.pyc/.pyo files)"
|
|
}
|
|
endian = LITTLE_ENDIAN
|
|
|
|
# Dictionnary which associate the pyc signature (32-bit integer)
|
|
# to a Python version string (eg. "m\xf2\r\n" => "Python 2.4b1").
|
|
# This list comes from CPython source code, see MAGIC_NUMBER
|
|
# in file Lib/importlib/_bootstrap_external.py
|
|
MAGIC = {
|
|
# Python 1.x
|
|
20121: ("1.5", 0x1050000),
|
|
50428: ("1.6", 0x1060000),
|
|
|
|
# Python 2.x
|
|
50823: ("2.0", 0x2000000),
|
|
60202: ("2.1", 0x2010000),
|
|
60717: ("2.2", 0x2020000),
|
|
62011: ("2.3a0", 0x2030000),
|
|
62021: ("2.3a0", 0x2030000),
|
|
62041: ("2.4a0", 0x2040000),
|
|
62051: ("2.4a3", 0x2040000),
|
|
62061: ("2.4b1", 0x2040000),
|
|
62071: ("2.5a0", 0x2050000),
|
|
62081: ("2.5a0 (ast-branch)", 0x2050000),
|
|
62091: ("2.5a0 (with)", 0x2050000),
|
|
62092: ("2.5a0 (WITH_CLEANUP opcode)", 0x2050000),
|
|
62101: ("2.5b3", 0x2050000),
|
|
62111: ("2.5b3", 0x2050000),
|
|
62121: ("2.5c1", 0x2050000),
|
|
62131: ("2.5c2", 0x2050000),
|
|
62151: ("2.6a0", 0x2070000),
|
|
62161: ("2.6a1", 0x2070000),
|
|
62171: ("2.7a0", 0x2070000),
|
|
62181: ("2.7a0", 0x2070000),
|
|
62191: ("2.7a0", 0x2070000),
|
|
62201: ("2.7a0", 0x2070000),
|
|
62211: ("2.7a0", 0x2070000),
|
|
|
|
# Python 3.x
|
|
3000: ("3.0 (3000)", 0x3000000),
|
|
3010: ("3.0 (3010)", 0x3000000),
|
|
3020: ("3.0 (3020)", 0x3000000),
|
|
3030: ("3.0 (3030)", 0x3000000),
|
|
3040: ("3.0 (3040)", 0x3000000),
|
|
3050: ("3.0 (3050)", 0x3000000),
|
|
3060: ("3.0 (3060)", 0x3000000),
|
|
3061: ("3.0 (3061)", 0x3000000),
|
|
3071: ("3.0 (3071)", 0x3000000),
|
|
3081: ("3.0 (3081)", 0x3000000),
|
|
3091: ("3.0 (3091)", 0x3000000),
|
|
3101: ("3.0 (3101)", 0x3000000),
|
|
3103: ("3.0 (3103)", 0x3000000),
|
|
3111: ("3.0a4", 0x3000000),
|
|
3131: ("3.0a5", 0x3000000),
|
|
3141: ("3.1a0", 0x3010000),
|
|
3151: ("3.1a0", 0x3010000),
|
|
3160: ("3.2a0", 0x3020000),
|
|
3170: ("3.2a1", 0x3020000),
|
|
3180: ("3.2a2", 0x3020000),
|
|
3190: ("Python 3.3a0", 0x3030000),
|
|
3200: ("Python 3.3a0 ", 0x3030000),
|
|
3210: ("Python 3.3a0 ", 0x3030000),
|
|
3220: ("Python 3.3a1 ", 0x3030000),
|
|
3230: ("Python 3.3a4 ", 0x3030000),
|
|
3250: ("Python 3.4a1 ", 0x3040000),
|
|
3260: ("Python 3.4a1 ", 0x3040000),
|
|
3270: ("Python 3.4a1 ", 0x3040000),
|
|
3280: ("Python 3.4a1 ", 0x3040000),
|
|
3290: ("Python 3.4a4 ", 0x3040000),
|
|
3300: ("Python 3.4a4 ", 0x3040000),
|
|
3310: ("Python 3.4rc2", 0x3040000),
|
|
3320: ("Python 3.5a0 ", 0x3050000),
|
|
3330: ("Python 3.5b1 ", 0x3050000),
|
|
3340: ("Python 3.5b2 ", 0x3050000),
|
|
3350: ("Python 3.5b2 ", 0x3050000),
|
|
3351: ("Python 3.5.2 ", 0x3050000),
|
|
3360: ("Python 3.6a0 ", 0x3060000),
|
|
3361: ("Python 3.6a0 ", 0x3060000),
|
|
3370: ("Python 3.6a1 ", 0x3060000),
|
|
3371: ("Python 3.6a1 ", 0x3060000),
|
|
3372: ("Python 3.6a1 ", 0x3060000),
|
|
3373: ("Python 3.6b1 ", 0x3060000),
|
|
3375: ("Python 3.6b1 ", 0x3060000),
|
|
3376: ("Python 3.6b1 ", 0x3060000),
|
|
3377: ("Python 3.6b1 ", 0x3060000),
|
|
3378: ("Python 3.6b2 ", 0x3060000),
|
|
3379: ("Python 3.6rc1", 0x3060000),
|
|
3390: ("Python 3.7a1", 0x30700A1),
|
|
3391: ("Python 3.7a2", 0x30700A2),
|
|
3392: ("Python 3.7a4", 0x30700A4),
|
|
3393: ("Python 3.7b1", 0x30700B1),
|
|
3394: ("Python 3.7b5", 0x30700B5),
|
|
3400: ("Python 3.8a1", VERSION(3, 8)),
|
|
3401: ("Python 3.8a1", VERSION(3, 8)),
|
|
3410: ("Python 3.8a1", VERSION(3, 8)),
|
|
3411: ("Python 3.8b2", VERSION(3, 8)),
|
|
3412: ("Python 3.8b2", VERSION(3, 8)),
|
|
3413: ("Python 3.8b4", VERSION(3, 8)),
|
|
3420: ("Python 3.9a0", VERSION(3, 9)),
|
|
3421: ("Python 3.9a0", VERSION(3, 9)),
|
|
3422: ("Python 3.9a0", VERSION(3, 9)),
|
|
3423: ("Python 3.9a2", VERSION(3, 9)),
|
|
3424: ("Python 3.9a2", VERSION(3, 9)),
|
|
3425: ("Python 3.9a2", VERSION(3, 9)),
|
|
3430: ("Python 3.10a1", VERSION(3, 10)),
|
|
3431: ("Python 3.10a1", VERSION(3, 10)),
|
|
3432: ("Python 3.10a2", VERSION(3, 10)),
|
|
3433: ("Python 3.10a2", VERSION(3, 10)),
|
|
3434: ("Python 3.10a6", VERSION(3, 10)),
|
|
3435: ("Python 3.10a7", VERSION(3, 10)),
|
|
3436: ("Python 3.10b1", VERSION(3, 10)),
|
|
3437: ("Python 3.10b1", VERSION(3, 10)),
|
|
3438: ("Python 3.10b1", VERSION(3, 10)),
|
|
3439: ("Python 3.10b1", VERSION(3, 10)),
|
|
3450: ("Python 3.11a1", VERSION(3, 11)),
|
|
3451: ("Python 3.11a1", VERSION(3, 11)),
|
|
3452: ("Python 3.11a1", VERSION(3, 11)),
|
|
3453: ("Python 3.11a1", VERSION(3, 11)),
|
|
3454: ("Python 3.11a1", VERSION(3, 11)),
|
|
3455: ("Python 3.11a1", VERSION(3, 11)),
|
|
3456: ("Python 3.11a1", VERSION(3, 11)),
|
|
3457: ("Python 3.11a1", VERSION(3, 11)),
|
|
3458: ("Python 3.11a1", VERSION(3, 11)),
|
|
3459: ("Python 3.11a1", VERSION(3, 11)),
|
|
3460: ("Python 3.11a1", VERSION(3, 11)),
|
|
3461: ("Python 3.11a1", VERSION(3, 11)),
|
|
3462: ("Python 3.11a2", VERSION(3, 11)),
|
|
3463: ("Python 3.11a3", VERSION(3, 11)),
|
|
3464: ("Python 3.11a3", VERSION(3, 11)),
|
|
3465: ("Python 3.11a3", VERSION(3, 11)),
|
|
3466: ("Python 3.11a4", VERSION(3, 11)),
|
|
3467: ("Python 3.11a4", VERSION(3, 11)),
|
|
3468: ("Python 3.11a4", VERSION(3, 11)),
|
|
3469: ("Python 3.11a4", VERSION(3, 11)),
|
|
3470: ("Python 3.11a4", VERSION(3, 11)),
|
|
3471: ("Python 3.11a4", VERSION(3, 11)),
|
|
3472: ("Python 3.11a4", VERSION(3, 11)),
|
|
3473: ("Python 3.11a4", VERSION(3, 11)),
|
|
3474: ("Python 3.11a4", VERSION(3, 11)),
|
|
3475: ("Python 3.11a5", VERSION(3, 11)),
|
|
3476: ("Python 3.11a5", VERSION(3, 11)),
|
|
3477: ("Python 3.11a5", VERSION(3, 11)),
|
|
3478: ("Python 3.11a5", VERSION(3, 11)),
|
|
3479: ("Python 3.11a5", VERSION(3, 11)),
|
|
3480: ("Python 3.11a5", VERSION(3, 11)),
|
|
3481: ("Python 3.11a5", VERSION(3, 11)),
|
|
3482: ("Python 3.11a5", VERSION(3, 11)),
|
|
3483: ("Python 3.11a5", VERSION(3, 11)),
|
|
3484: ("Python 3.11a5", VERSION(3, 11)),
|
|
3485: ("Python 3.11a5", VERSION(3, 11)),
|
|
3486: ("Python 3.11a6", VERSION(3, 11)),
|
|
3487: ("Python 3.11a6", VERSION(3, 11)),
|
|
3488: ("Python 3.11a6", VERSION(3, 11)),
|
|
3489: ("Python 3.11a6", VERSION(3, 11)),
|
|
3490: ("Python 3.11a6", VERSION(3, 11)),
|
|
3491: ("Python 3.11a6", VERSION(3, 11)),
|
|
3492: ("Python 3.11a7", VERSION(3, 11)),
|
|
3493: ("Python 3.11a7", VERSION(3, 11)),
|
|
3494: ("Python 3.11a7", VERSION(3, 11)),
|
|
3500: ("Python 3.12a1", VERSION(3, 12)),
|
|
3501: ("Python 3.12a1", VERSION(3, 12)),
|
|
3502: ("Python 3.12a1", VERSION(3, 12)),
|
|
3503: ("Python 3.12a1", VERSION(3, 12)),
|
|
3504: ("Python 3.12a1", VERSION(3, 12)),
|
|
3505: ("Python 3.12a1", VERSION(3, 12)),
|
|
3506: ("Python 3.12a1", VERSION(3, 12)),
|
|
3507: ("Python 3.12a1", VERSION(3, 12)),
|
|
3508: ("Python 3.12a1", VERSION(3, 12)),
|
|
3509: ("Python 3.12a1", VERSION(3, 12)),
|
|
3510: ("Python 3.12a1", VERSION(3, 12)),
|
|
3511: ("Python 3.12a1", VERSION(3, 12)),
|
|
}
|
|
|
|
# Dictionnary which associate the pyc signature (4-byte long string)
|
|
# to a Python version string (eg. "m\xf2\r\n" => "2.4b1")
|
|
STR_MAGIC = dict(
|
|
(long2raw(magic | (ord('\r') << 16) |
|
|
(ord('\n') << 24), LITTLE_ENDIAN), value[0])
|
|
for magic, value in MAGIC.items())
|
|
|
|
def validate(self):
|
|
magic_number = self["magic_number"].value
|
|
if magic_number not in self.MAGIC:
|
|
return "Unknown magic number (%s)" % magic_number
|
|
if self["magic_string"].value != "\r\n":
|
|
return r"Wrong magic string (\r\n)"
|
|
|
|
if self["content/bytecode"].value != "c":
|
|
return "First object bytecode is not code"
|
|
return True
|
|
|
|
def getVersion(self):
|
|
if not hasattr(self, "version"):
|
|
signature = self.stream.readBits(0, 16, self.endian)
|
|
self.version = self.MAGIC[signature][1]
|
|
return self.version
|
|
|
|
def createFields(self):
|
|
yield UInt16(self, "magic_number", "Magic number")
|
|
yield String(self, "magic_string", 2, r"Magic string \r\n", charset="ASCII")
|
|
|
|
version = self.getVersion()
|
|
|
|
# PEP 552: Deterministic pycs #31650 (Python 3.7a4); magic=3392
|
|
if version >= 0x30700A4:
|
|
yield Bit(self, "use_hash", "Is hash based?")
|
|
yield Bit(self, "checked")
|
|
yield NullBits(self, "reserved", 30)
|
|
use_hash = self['use_hash'].value
|
|
else:
|
|
use_hash = False
|
|
|
|
if use_hash:
|
|
yield UInt64(self, "hash", "SipHash hash of the source file")
|
|
else:
|
|
yield TimestampUnix32(self, "timestamp", "Timestamp modulo 2**32")
|
|
if version >= 0x3030000 and self['magic_number'].value >= 3200:
|
|
yield UInt32(self, "filesize", "Size of the Python source file (.py) modulo 2**32")
|
|
|
|
yield Object(self, "content")
|