shell bypass 403
# -*- coding: utf-8 -*-
import sys
import tokenize
class CouldNotHandleEncoding(Exception):
def __init__(self, path, cause):
self.path = path
self.cause = cause
def read_py_file(filepath):
if sys.version_info < (3, ):
return open(filepath, 'rU').read()
else:
# see https://docs.python.org/3/library/tokenize.html#tokenize.detect_encoding
# first just see if the file is properly encoded
try:
with open(filepath, 'rb') as f:
tokenize.detect_encoding(f.readline)
except SyntaxError as err:
# this warning is issued:
# (1) in badly authored files (contains non-utf8 in a comment line)
# (2) a coding is specified, but wrong and
# (3) no coding is specified, and the default
# 'utf8' fails to decode.
# (4) the encoding specified by a pep263 declaration did not match
# with the encoding detected by inspecting the BOM
raise CouldNotHandleEncoding(filepath, err)
try:
return tokenize.open(filepath).read()
# this warning is issued:
# (1) if uft-8 is specified, but latin1 is used with something like \x0e9 appearing
# (see http://stackoverflow.com/a/5552623)
except UnicodeDecodeError as err:
raise CouldNotHandleEncoding(filepath, err)