mirror of
https://github.com/rocky/python-uncompyle6.git
synced 2024-11-23 05:00:07 +00:00
439 lines
14 KiB
Python
439 lines
14 KiB
Python
# Copyright (C) 2018-2022 Rocky Bernstein <rocky@gnu.org>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from typing import Any, Tuple
|
|
import datetime, py_compile, os, sys
|
|
|
|
from xdis import iscode
|
|
from xdis.version_info import IS_PYPY, PYTHON_VERSION_TRIPLE, version_tuple_to_str
|
|
from uncompyle6.disas import check_object_path
|
|
from uncompyle6.semantics import pysource
|
|
from uncompyle6.semantics.pysource import PARSER_DEFAULT_DEBUG
|
|
from uncompyle6.parser import ParserError
|
|
from uncompyle6.version import __version__
|
|
|
|
# from uncompyle6.linenumbers import line_number_mapping
|
|
|
|
from uncompyle6.semantics.pysource import code_deparse
|
|
from uncompyle6.semantics.fragments import code_deparse as code_deparse_fragments
|
|
from uncompyle6.semantics.linemap import deparse_code_with_map
|
|
|
|
from xdis.load import load_module
|
|
|
|
def _get_outstream(outfile: str) -> Any:
|
|
dir = os.path.dirname(outfile)
|
|
failed_file = outfile + "_failed"
|
|
if os.path.exists(failed_file):
|
|
os.remove(failed_file)
|
|
try:
|
|
os.makedirs(dir)
|
|
except OSError:
|
|
pass
|
|
return open(outfile, mode="w", encoding="utf-8")
|
|
|
|
|
|
def decompile(
|
|
co,
|
|
bytecode_version: str = PYTHON_VERSION_TRIPLE,
|
|
out=sys.stdout,
|
|
showasm=None,
|
|
showast={},
|
|
timestamp=None,
|
|
showgrammar=False,
|
|
source_encoding=None,
|
|
code_objects={},
|
|
source_size=None,
|
|
is_pypy=None,
|
|
magic_int=None,
|
|
mapstream=None,
|
|
do_fragments=False,
|
|
compile_mode="exec",
|
|
) -> Any:
|
|
"""
|
|
ingests and deparses a given code block 'co'
|
|
|
|
if `bytecode_version` is None, use the current Python intepreter
|
|
version.
|
|
|
|
Caller is responsible for closing `out` and `mapstream`
|
|
"""
|
|
if bytecode_version is None:
|
|
bytecode_version = PYTHON_VERSION_TRIPLE
|
|
|
|
# store final output stream for case of error
|
|
real_out = out or sys.stdout
|
|
|
|
def write(s):
|
|
s += "\n"
|
|
real_out.write(s)
|
|
|
|
assert iscode(co), f"""{co} does not smell like code"""
|
|
|
|
co_pypy_str = "PyPy " if is_pypy else ""
|
|
run_pypy_str = "PyPy " if IS_PYPY else ""
|
|
sys_version_lines = sys.version.split("\n")
|
|
if source_encoding:
|
|
write("# -*- coding: %s -*-" % source_encoding)
|
|
write(
|
|
"# uncompyle6 version %s\n"
|
|
"# %sPython bytecode version base %s%s\n# Decompiled from: %sPython %s"
|
|
% (
|
|
__version__,
|
|
co_pypy_str,
|
|
version_tuple_to_str(bytecode_version),
|
|
" (%s)" % str(magic_int) if magic_int else "",
|
|
run_pypy_str,
|
|
"\n# ".join(sys_version_lines),
|
|
)
|
|
)
|
|
if co.co_filename:
|
|
write("# Embedded file name: %s" % co.co_filename)
|
|
if timestamp:
|
|
write("# Compiled at: %s" % datetime.datetime.fromtimestamp(timestamp))
|
|
if source_size:
|
|
write("# Size of source mod 2**32: %d bytes" % source_size)
|
|
|
|
# maybe a second -a will do before as well
|
|
asm = "after" if showasm else None
|
|
|
|
grammar = dict(PARSER_DEFAULT_DEBUG)
|
|
if showgrammar:
|
|
grammar["reduce"] = True
|
|
|
|
debug_opts = {"asm": asm, "tree": showast, "grammar": grammar}
|
|
|
|
try:
|
|
if mapstream:
|
|
if isinstance(mapstream, str):
|
|
mapstream = _get_outstream(mapstream)
|
|
|
|
deparsed = deparse_code_with_map(
|
|
bytecode_version,
|
|
co,
|
|
out,
|
|
showasm,
|
|
showast,
|
|
showgrammar,
|
|
code_objects=code_objects,
|
|
is_pypy=is_pypy,
|
|
)
|
|
header_count = 3 + len(sys_version_lines)
|
|
linemap = [
|
|
(line_no, deparsed.source_linemap[line_no] + header_count)
|
|
for line_no in sorted(deparsed.source_linemap.keys())
|
|
]
|
|
mapstream.write("\n\n# %s\n" % linemap)
|
|
else:
|
|
if do_fragments:
|
|
deparse_fn = code_deparse_fragments
|
|
else:
|
|
deparse_fn = code_deparse
|
|
deparsed = deparse_fn(
|
|
co,
|
|
out,
|
|
bytecode_version,
|
|
debug_opts=debug_opts,
|
|
is_pypy=is_pypy,
|
|
compile_mode=compile_mode,
|
|
)
|
|
pass
|
|
return deparsed
|
|
except pysource.SourceWalkerError as e:
|
|
# deparsing failed
|
|
raise pysource.SourceWalkerError(str(e))
|
|
|
|
|
|
def compile_file(source_path: str) -> str:
|
|
if source_path.endswith(".py"):
|
|
basename = source_path[:-3]
|
|
else:
|
|
basename = source_path
|
|
|
|
if hasattr(sys, "pypy_version_info"):
|
|
bytecode_path = "%s-pypy%s.pyc" % (basename, version_tuple_to_str())
|
|
else:
|
|
bytecode_path = "%s-%s.pyc" % (basename, version_tuple_to_str())
|
|
|
|
print("compiling %s to %s" % (source_path, bytecode_path))
|
|
py_compile.compile(source_path, bytecode_path, "exec")
|
|
return bytecode_path
|
|
|
|
|
|
def decompile_file(
|
|
filename: str,
|
|
outstream=None,
|
|
showasm=None,
|
|
showast={},
|
|
showgrammar=False,
|
|
source_encoding=None,
|
|
mapstream=None,
|
|
do_fragments=False,
|
|
) -> Any:
|
|
"""
|
|
decompile Python byte-code file (.pyc). Return objects to
|
|
all of the deparsed objects found in `filename`.
|
|
"""
|
|
|
|
filename = check_object_path(filename)
|
|
code_objects = {}
|
|
(version, timestamp, magic_int, co, is_pypy, source_size, sip_hash) = load_module(
|
|
filename, code_objects
|
|
)
|
|
|
|
if isinstance(co, list):
|
|
deparsed = []
|
|
for bytecode in co:
|
|
deparsed.append(
|
|
decompile(
|
|
bytecode,
|
|
version,
|
|
outstream,
|
|
showasm,
|
|
showast,
|
|
timestamp,
|
|
showgrammar,
|
|
source_encoding,
|
|
code_objects=code_objects,
|
|
is_pypy=is_pypy,
|
|
magic_int=magic_int,
|
|
mapstream=mapstream,
|
|
),
|
|
)
|
|
else:
|
|
deparsed = [
|
|
decompile(
|
|
co,
|
|
version,
|
|
outstream,
|
|
showasm,
|
|
showast,
|
|
timestamp,
|
|
showgrammar,
|
|
source_encoding,
|
|
code_objects=code_objects,
|
|
source_size=source_size,
|
|
is_pypy=is_pypy,
|
|
magic_int=magic_int,
|
|
mapstream=mapstream,
|
|
do_fragments=do_fragments,
|
|
compile_mode="exec",
|
|
)
|
|
]
|
|
co = None
|
|
return deparsed
|
|
|
|
|
|
# FIXME: combine into an options parameter
|
|
def main(
|
|
in_base: str,
|
|
out_base: str,
|
|
compiled_files: list,
|
|
source_files: list,
|
|
outfile=None,
|
|
showasm=None,
|
|
showast={},
|
|
do_verify=False,
|
|
showgrammar=False,
|
|
source_encoding=None,
|
|
raise_on_error=False,
|
|
do_linemaps=False,
|
|
do_fragments=False,
|
|
) -> Tuple[int, int, int, int]:
|
|
"""
|
|
in_base base directory for input files
|
|
out_base base directory for output files (ignored when
|
|
files list of filenames to be uncompyled (relative to in_base)
|
|
outfile write output to this filename (overwrites out_base)
|
|
|
|
For redirecting output to
|
|
- <filename> outfile=<filename> (out_base is ignored)
|
|
- files below out_base out_base=...
|
|
- stdout out_base=None, outfile=None
|
|
"""
|
|
tot_files = okay_files = failed_files = verify_failed_files = 0
|
|
current_outfile = outfile
|
|
linemap_stream = None
|
|
|
|
for source_path in source_files:
|
|
compiled_files.append(compile_file(source_path))
|
|
|
|
for filename in compiled_files:
|
|
infile = os.path.join(in_base, filename)
|
|
# print("XXX", infile)
|
|
if not os.path.exists(infile):
|
|
sys.stderr.write("File '%s' doesn't exist. Skipped\n" % infile)
|
|
continue
|
|
|
|
if do_linemaps:
|
|
linemap_stream = infile + ".pymap"
|
|
pass
|
|
|
|
# print (infile, file=sys.stderr)
|
|
|
|
if outfile: # outfile was given as parameter
|
|
outstream = _get_outstream(outfile)
|
|
elif out_base is None:
|
|
outstream = sys.stdout
|
|
if do_linemaps:
|
|
linemap_stream = sys.stdout
|
|
else:
|
|
if filename.endswith(".pyc"):
|
|
current_outfile = os.path.join(out_base, filename[0:-1])
|
|
else:
|
|
current_outfile = os.path.join(out_base, filename) + "_dis"
|
|
pass
|
|
pass
|
|
|
|
outstream = _get_outstream(current_outfile)
|
|
|
|
# print(current_outfile, file=sys.stderr)
|
|
|
|
# Try to uncompile the input file
|
|
try:
|
|
deparsed = decompile_file(
|
|
infile,
|
|
outstream,
|
|
showasm,
|
|
showast,
|
|
showgrammar,
|
|
source_encoding,
|
|
linemap_stream,
|
|
do_fragments,
|
|
)
|
|
if do_fragments:
|
|
for d in deparsed:
|
|
last_mod = None
|
|
offsets = d.offsets
|
|
for e in sorted(
|
|
[k for k in offsets.keys() if isinstance(k[1], int)]
|
|
):
|
|
if e[0] != last_mod:
|
|
line = "=" * len(e[0])
|
|
outstream.write("%s\n%s\n%s\n" % (line, e[0], line))
|
|
last_mod = e[0]
|
|
info = offsets[e]
|
|
extractInfo = d.extract_node_info(info)
|
|
outstream.write("%s" % info.node.format().strip() + "\n")
|
|
outstream.write(extractInfo.selectedLine + "\n")
|
|
outstream.write(extractInfo.markerLine + "\n\n")
|
|
pass
|
|
pass
|
|
tot_files += 1
|
|
except (ValueError, SyntaxError, ParserError, pysource.SourceWalkerError) as e:
|
|
sys.stdout.write("\n")
|
|
sys.stderr.write(f"\n# file {infile}\n# {e}\n")
|
|
failed_files += 1
|
|
tot_files += 1
|
|
except KeyboardInterrupt:
|
|
if outfile:
|
|
outstream.close()
|
|
os.remove(outfile)
|
|
sys.stdout.write("\n")
|
|
sys.stderr.write(f"\nLast file: {infile} ")
|
|
raise
|
|
except RuntimeError as e:
|
|
sys.stdout.write(f"\n{str(e)}\n")
|
|
if str(e).startswith("Unsupported Python"):
|
|
sys.stdout.write("\n")
|
|
sys.stderr.write(
|
|
"\n# Unsupported bytecode in file %s\n# %s\n" % (infile, e)
|
|
)
|
|
else:
|
|
if outfile:
|
|
outstream.close()
|
|
os.remove(outfile)
|
|
sys.stdout.write("\n")
|
|
sys.stderr.write("\nLast file: %s " % (infile))
|
|
raise
|
|
|
|
# except:
|
|
# failed_files += 1
|
|
# if current_outfile:
|
|
# outstream.close()
|
|
# os.rename(current_outfile, current_outfile + "_failed")
|
|
# else:
|
|
# sys.stderr.write("\n# %s" % sys.exc_info()[1])
|
|
# sys.stderr.write("\n# Can't uncompile %s\n" % infile)
|
|
else: # uncompile successful
|
|
if current_outfile:
|
|
outstream.close()
|
|
okay_files += 1
|
|
pass
|
|
else:
|
|
okay_files += 1
|
|
if not current_outfile:
|
|
mess = "\n# okay decompiling"
|
|
# mem_usage = __memUsage()
|
|
print(mess, infile)
|
|
if current_outfile:
|
|
sys.stdout.write(
|
|
"%s -- %s\r"
|
|
% (
|
|
infile,
|
|
status_msg(
|
|
do_verify,
|
|
tot_files,
|
|
okay_files,
|
|
failed_files,
|
|
verify_failed_files,
|
|
),
|
|
)
|
|
)
|
|
try:
|
|
# FIXME: Something is weird with Pypy here
|
|
sys.stdout.flush()
|
|
except:
|
|
pass
|
|
if current_outfile:
|
|
sys.stdout.write("\n")
|
|
try:
|
|
# FIXME: Something is weird with Pypy here
|
|
sys.stdout.flush()
|
|
except:
|
|
pass
|
|
pass
|
|
return (tot_files, okay_files, failed_files, verify_failed_files)
|
|
|
|
|
|
# ---- main ----
|
|
|
|
if sys.platform.startswith("linux") and os.uname()[2][:2] in ["2.", "3.", "4."]:
|
|
|
|
def __memUsage():
|
|
mi = open("/proc/self/stat", "r")
|
|
mu = mi.readline().split()[22]
|
|
mi.close()
|
|
return int(mu) / 1000000
|
|
|
|
|
|
else:
|
|
|
|
def __memUsage():
|
|
return ""
|
|
|
|
|
|
def status_msg(do_verify, tot_files, okay_files, failed_files, verify_failed_files):
|
|
if tot_files == 1:
|
|
if failed_files:
|
|
return "\n# decompile failed"
|
|
elif verify_failed_files:
|
|
return "\n# decompile run verification failed"
|
|
else:
|
|
return "\n# Successfully decompiled file"
|
|
pass
|
|
pass
|
|
mess = f"decompiled {tot_files} files: {okay_files} okay, {failed_files} failed"
|
|
return mess
|