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229 lines
8.1 KiB
Python
229 lines
8.1 KiB
Python
from __future__ import print_function
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import datetime, os, sys
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from uncompyle6 import verify, IS_PYPY
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from xdis.code import iscode
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from uncompyle6.disas import check_object_path
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from uncompyle6.semantics import pysource
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from uncompyle6.parser import ParserError
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from uncompyle6.version import VERSION
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from xdis.load import load_module
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def uncompyle(
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bytecode_version, co, out=None, showasm=None, showast=False,
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timestamp=None, showgrammar=False, code_objects={},
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source_size=None, is_pypy=False, magic_int=None):
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"""
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ingests and deparses a given code block 'co'
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"""
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assert iscode(co)
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# store final output stream for case of error
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real_out = out or sys.stdout
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co_pypy_str = 'PyPy ' if is_pypy else ''
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run_pypy_str = 'PyPy ' if IS_PYPY else ''
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print('# uncompyle6 version %s\n'
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'# %sPython bytecode %s%s\n# Decompiled from: %sPython %s' %
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(VERSION, co_pypy_str, bytecode_version,
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" (%d)" % magic_int if magic_int else "",
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run_pypy_str, '\n# '.join(sys.version.split('\n'))),
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file=real_out)
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if co.co_filename:
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print('# Embedded file name: %s' % co.co_filename,
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file=real_out)
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if timestamp:
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print('# Compiled at: %s' % datetime.datetime.fromtimestamp(timestamp),
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file=real_out)
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if source_size:
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print('# Size of source mod 2**32: %d bytes' % source_size,
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file=real_out)
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try:
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pysource.deparse_code(bytecode_version, co, out, showasm, showast,
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showgrammar, code_objects=code_objects,
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is_pypy=is_pypy)
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except pysource.SourceWalkerError as e:
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# deparsing failed
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print("\n")
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print(co.co_filename)
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if real_out != out:
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print("\n", file=real_out)
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print(e, file=real_out)
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def uncompyle_file(filename, outstream=None, showasm=None, showast=False,
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showgrammar=False):
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"""
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decompile Python byte-code file (.pyc)
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"""
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filename = check_object_path(filename)
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code_objects = {}
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(version, timestamp, magic_int, co, is_pypy,
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source_size) = load_module(filename, code_objects)
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if type(co) == list:
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for con in co:
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uncompyle(version, con, outstream, showasm, showast,
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timestamp, showgrammar, code_objects=code_objects,
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is_pypy=is_pypy, magic_int=magic_int)
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else:
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uncompyle(version, co, outstream, showasm, showast,
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timestamp, showgrammar,
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code_objects=code_objects, source_size=source_size,
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is_pypy=is_pypy, magic_int=magic_int)
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co = None
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# FIXME: combine into an options parameter
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def main(in_base, out_base, files, codes, outfile=None,
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showasm=None, showast=False, do_verify=False,
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showgrammar=False, raise_on_error=False):
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"""
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in_base base directory for input files
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out_base base directory for output files (ignored when
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files list of filenames to be uncompyled (relative to src_base)
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outfile write output to this filename (overwrites out_base)
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For redirecting output to
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- <filename> outfile=<filename> (out_base is ignored)
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- files below out_base out_base=...
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- stdout out_base=None, outfile=None
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"""
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def _get_outstream(outfile):
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dir = os.path.dirname(outfile)
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failed_file = outfile + '_failed'
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if os.path.exists(failed_file):
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os.remove(failed_file)
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try:
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os.makedirs(dir)
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except OSError:
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pass
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return open(outfile, 'w')
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of = outfile
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tot_files = okay_files = failed_files = verify_failed_files = 0
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# for code in codes:
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# version = sys.version[:3] # "2.5"
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# with open(code, "r") as f:
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# co = compile(f.read(), "", "exec")
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# uncompyle(sys.version[:3], co, sys.stdout, showasm=showasm, showast=showast)
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for filename in files:
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infile = os.path.join(in_base, filename)
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if not os.path.exists(infile):
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sys.stderr.write("File '%s' doesn't exist. Skipped\n"
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% infile)
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continue
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# print (infile, file=sys.stderr)
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if of: # outfile was given as parameter
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outstream = _get_outstream(outfile)
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elif out_base is None:
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outstream = sys.stdout
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else:
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if filename.endswith('.pyc'):
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outfile = os.path.join(out_base, filename[0:-1])
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else:
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outfile = os.path.join(out_base, filename) + '_dis'
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outstream = _get_outstream(outfile)
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# print(outfile, file=sys.stderr)
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# Try to uncompile the input file
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try:
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uncompyle_file(infile, outstream, showasm, showast, showgrammar)
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tot_files += 1
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except (ValueError, SyntaxError, ParserError) as e:
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sys.stderr.write("\n# file %s\n# %s" % (infile, e))
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failed_files += 1
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except KeyboardInterrupt:
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if outfile:
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outstream.close()
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os.remove(outfile)
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sys.stderr.write("\nLast file: %s " % (infile))
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raise
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# except:
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# failed_files += 1
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# if outfile:
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# outstream.close()
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# os.rename(outfile, outfile + '_failed')
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# else:
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# sys.stderr.write("\n# %s" % sys.exc_info()[1])
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# sys.stderr.write("\n# Can't uncompile %s\n" % infile)
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else: # uncompile successful
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if outfile:
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outstream.close()
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if do_verify:
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weak_verify = do_verify == 'weak'
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try:
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msg = verify.compare_code_with_srcfile(infile, outfile, weak_verify=weak_verify)
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if not outfile:
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if not msg:
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print('\n# okay decompiling %s' % infile)
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okay_files += 1
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else:
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print('\n# %s\n\t%s', infile, msg)
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except verify.VerifyCmpError as e:
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print(e)
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verify_failed_files += 1
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os.rename(outfile, outfile + '_unverified')
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if not outfile:
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print("### Error Verifiying %s" % filename, file=sys.stderr)
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print(e, file=sys.stderr)
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if raise_on_error:
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raise
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pass
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pass
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pass
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elif do_verify:
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print("\n### uncompile successful, but no file to compare against",
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file=sys.stderr)
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pass
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else:
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okay_files += 1
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if not outfile:
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mess = '\n# okay decompiling'
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# mem_usage = __memUsage()
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print(mess, infile)
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if outfile:
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sys.stdout.write("%s\r" %
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status_msg(do_verify, tot_files, okay_files, failed_files, verify_failed_files))
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sys.stdout.flush()
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if outfile:
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sys.stdout.write("\n")
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sys.stdout.flush()
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return (tot_files, okay_files, failed_files, verify_failed_files)
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# ---- main ----
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if sys.platform.startswith('linux') and os.uname()[2][:2] in ['2.', '3.', '4.']:
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def __memUsage():
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mi = open('/proc/self/stat', 'r')
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mu = mi.readline().split()[22]
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mi.close()
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return int(mu) / 1000000
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else:
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def __memUsage():
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return ''
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def status_msg(do_verify, tot_files, okay_files, failed_files,
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verify_failed_files):
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if tot_files == 1:
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if failed_files:
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return "decompile failed"
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elif verify_failed_files:
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return "decompile verify failed"
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else:
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return "Successfully decompiled file"
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pass
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pass
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mess = "decompiled %i files: %i okay, %i failed" % (tot_files, okay_files, failed_files)
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if do_verify:
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mess += (", %i verify failed" % verify_failed_files)
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return mess
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