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加密包 初版

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captainfffsama 2 years ago
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  1. 131
      .gitignore
  2. 21
      LICENSE
  3. 60
      readme.md
  4. 27
      setup.py
  5. 818
      zipimport2.pyx

131
.gitignore vendored
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.history/
.vscode/
own_test/
zipimport2.c
example/
# create by https://github.com/iamcco/coc-gitignore (Thu Sep 08 2022 10:06:58 GMT+0800 (中国标准时间))
# Python.gitignore:
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class
# C extensions
*.so
# Distribution / packaging
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
pip-wheel-metadata/
share/python-wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
.nox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
.hypothesis/
.pytest_cache/
# Translations
*.mo
*.pot
# Django stuff:
*.log
local_settings.py
db.sqlite3
db.sqlite3-journal
# Flask stuff:
instance/
.webassets-cache
# Scrapy stuff:
.scrapy
# Sphinx documentation
docs/_build/
# PyBuilder
target/
# Jupyter Notebook
.ipynb_checkpoints
# IPython
profile_default/
ipython_config.py
# pyenv
.python-version
# pipenv
# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
# However, in case of collaboration, if having platform-specific dependencies or dependencies
# having no cross-platform support, pipenv may install dependencies that don't work, or not
# install all needed dependencies.
#Pipfile.lock
# celery beat schedule file
celerybeat-schedule
# SageMath parsed files
*.sage.py
# Environments
.env
.venv
env/
venv/
ENV/
env.bak/
venv.bak/
# Spyder project settings
.spyderproject
.spyproject
# Rope project settings
.ropeproject
# mkdocs documentation
/site
# mypy
.mypy_cache/
.dmypy.json
dmypy.json
# Pyre type checker
.pyre/

21
LICENSE
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MIT License
Copyright (c) [2022] [captainfffsama]
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

60
readme.md
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# 说明
参考了 python 标准库中 zipimport 源码,现在 zipimport2 支持加密 zip 包导入,并支持对 zip 包密码进行加密
# 安装方式
安装 Cython:
```python
pip install Cython
pip install .
```
# 使用方式
假设你写了一个非常碉堡的包,比如叫`iamsohandsome.py`,其内容大概如下:
```python
class IAmYourDaddy:
def __init__(self):
print("daddy coming")
```
然后我们想加密这个包,密码使用`daddycoming`,则可以执行以下命令:
```shell
zip -P daddycoming -r d.zip iamsohandsome.py
```
得到一个`d.zip`,这个压缩包中包含了你的包中的所有文件.
然后我们使用以下代码把明文密码`daddycoming`加密:
```python
from zipimport2 import encrypt
print(encrypt(nosecret="daddycoming"))
```
得到以下输出:
```shell
>>> >393>3>3.47333531343;3
```
这里 `>393>3>3.47333531343;3` 就是加密之后的密码.
然后加加密之后密码和加密zip包发给老王,老王在自己的代码中想要引入这个加密的包,可以使用如下方式:
```python
from zipimport2 import zipimporter
zip_path="~/d.zip"
pwd=">393>3>3.47333531343;3"
# 若使用加密的密码,那么zipimporter 位置2的参数就用 True
i=zipimporter(zip_path+'@'+pwd,True)
# 这里 m 就是加载进来的 iamsohandsome 模块
m=i.load_module("iamsohandsome")
# 加载进来之后就可以使用包里面的方法和类
m.IAmYourDaddy()
```
可以得到以下输出:
```shell
>>> daddy coming
```
# API 说明
- `zipimporter.__init__(self, path, pwd_encry=False)`
总体和原始标准库差不多,就是新增一个 pwd_encry 指示用的是明文密码还是加密密码
- `encrypt(pwd:str)`
用来帮助用户加密zip包的密码

27
setup.py
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from distutils import extension
from setuptools import setup,find_packages
from setuptools.extension import Extension
from Cython.Build import cythonize
extensions=[
Extension("zipimport2",["zipimport2.pyx"])
]
setup(
name="zipimport2",
version='v0.1',
description='zipimport support encrypt zip',
author='captainfffsama',
author_email='tuanzhangsama@outlook.com',
packages=find_packages(),
include_package_data=True,
license='MIT License',
classifiers=[
'Development Status :: 3 - Alpha',
'Operating System :: OS Independent',
'Programming Language :: Python :: 3.7',
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
],
ext_modules=cythonize(extensions,language_level=3)
)

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zipimport2.pyx
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"""
This module exports three objects:
- zipimporter: a class; its constructor takes a path to a Zip archive.
- ZipImportError: exception raised by zipimporter objects. It's a
subclass of ImportError, so it can be caught as ImportError, too.
- _zip_directory_cache: a dict, mapping archive paths to zip directory
info dicts, as used in zipimporter._files.
It is usually not needed to use the zipimport module explicitly; it is
used by the builtin import mechanism for sys.path items that are paths
to Zip archives.
"""
#from importlib import _bootstrap_external
#from importlib import _bootstrap # for _verbose_message
import _frozen_importlib_external as _bootstrap_external
from _frozen_importlib_external import _unpack_uint16, _unpack_uint32
import _frozen_importlib as _bootstrap # for _verbose_message
import _imp # for check_hash_based_pycs
import _io # for open
import marshal # for loads
import sys # for modules
import time # for mktime
import _warnings # For warn()
__all__ = ['ZipImportError', 'zipimporter','__version__','encrypt']
__version__="v0.1"
path_sep = _bootstrap_external.path_sep
alt_path_sep = _bootstrap_external.path_separators[1:]
class ZipImportError(ImportError):
pass
# _read_directory() cache
_zip_directory_cache = {}
_module_type = type(sys)
END_CENTRAL_DIR_SIZE = 22
STRING_END_ARCHIVE = b'PK\x05\x06'
MAX_COMMENT_LEN = (1 << 16) - 1
def encrypt(pwd:str):
b = bytearray(pwd.encode("utf-8"))
n = len(b)
c = bytearray(n*2)
j = 0
for i in range(0, n):
b1 = b[i]
b2 = b1 ^ 11
c1 = b2 % 19
c2 = b2 // 19
c1 = c1 + 46
c2 = c2 + 46
c[j] = c1
c[j+1] = c2
j = j+2
return c.decode("utf-8")
def _decrypt(s):
c = bytearray(str(s).encode("utf-8"))
n = len(c)
if n % 2 != 0:
return ""
n = n // 2
b = bytearray(n)
j = 0
for i in range(0, n):
c1 = c[j]
c2 = c[j + 1]
j = j + 2
c1 = c1 - 46
c2 = c2 - 46
b2 = c2 * 19 + c1
b1 = b2 ^ 11
b[i] = b1
return b.decode("utf-8")
class zipimporter(_bootstrap_external._LoaderBasics):
"""zipimporter(archivepath) -> zipimporter object
Create a new zipimporter instance. 'archivepath' must be a path to
a zipfile, or to a specific path inside a zipfile. For example, it can be
'/tmp/myimport.zip', or '/tmp/myimport.zip/mydirectory', if mydirectory is a
valid directory inside the archive.
'ZipImportError is raised if 'archivepath' doesn't point to a valid Zip
archive.
The 'archive' attribute of zipimporter objects contains the name of the
zipfile targeted.
"""
# Split the "subdirectory" from the Zip archive path, lookup a matching
# entry in sys.path_importer_cache, fetch the file directory from there
# if found, or else read it from the archive.
def __init__(self, path, pwd_encry=False):
import os
if not isinstance(path, str):
path = os.fsdecode(path)
pwd_div_idx=path.find('@')
if pwd_div_idx != -1:
self.pwd=path[pwd_div_idx+1:]
path=path[:pwd_div_idx]
if pwd_encry:
self.pwd=_decrypt(self.pwd)
else:
self.pwd=""
if not path:
raise ZipImportError('archive path is empty', path=path)
if not os.path.exists(path):
raise ZipImportError('archive can not find', path)
if alt_path_sep:
path = path.replace(alt_path_sep, path_sep)
prefix = []
while True:
try:
st = _bootstrap_external._path_stat(path)
except (OSError, ValueError):
# On Windows a ValueError is raised for too long paths.
# Back up one path element.
dirname, basename = _bootstrap_external._path_split(path)
if dirname == path:
raise ZipImportError('not a Zip file', path=path)
path = dirname
prefix.append(basename)
else:
# it exists
if (st.st_mode & 0o170000) != 0o100000: # stat.S_ISREG
# it's a not file
raise ZipImportError('not a Zip file', path=path)
break
try:
files = _zip_directory_cache[path]
except KeyError:
files = _read_directory(path)
_zip_directory_cache[path] = files
self._files = files
self.archive = path
# a prefix directory following the ZIP file path.
self.prefix = _bootstrap_external._path_join(*prefix[::-1])
if self.prefix:
self.prefix += path_sep
# Check whether we can satisfy the import of the module named by
# 'fullname', or whether it could be a portion of a namespace
# package. Return self if we can load it, a string containing the
# full path if it's a possible namespace portion, None if we
# can't load it.
def find_loader(self, fullname, path=None):
"""find_loader(fullname, path=None) -> self, str or None.
Search for a module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the zipimporter
instance itself if the module was found, a string containing the
full path name if it's possibly a portion of a namespace package,
or None otherwise. The optional 'path' argument is ignored -- it's
there for compatibility with the importer protocol.
Deprecated since Python 3.10. Use find_spec() instead.
"""
_warnings.warn("zipimporter.find_loader() is deprecated and slated for "
"removal in Python 3.12; use find_spec() instead",
DeprecationWarning)
mi = _get_module_info(self, fullname)
if mi is not None:
# This is a module or package.
return self, []
# Not a module or regular package. See if this is a directory, and
# therefore possibly a portion of a namespace package.
# We're only interested in the last path component of fullname
# earlier components are recorded in self.prefix.
modpath = _get_module_path(self, fullname)
if _is_dir(self, modpath):
# This is possibly a portion of a namespace
# package. Return the string representing its path,
# without a trailing separator.
return None, [f'{self.archive}{path_sep}{modpath}']
return None, []
# Check whether we can satisfy the import of the module named by
# 'fullname'. Return self if we can, None if we can't.
def find_module(self, fullname, path=None):
"""find_module(fullname, path=None) -> self or None.
Search for a module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the zipimporter
instance itself if the module was found, or None if it wasn't.
The optional 'path' argument is ignored -- it's there for compatibility
with the importer protocol.
Deprecated since Python 3.10. Use find_spec() instead.
"""
_warnings.warn("zipimporter.find_module() is deprecated and slated for "
"removal in Python 3.12; use find_spec() instead",
DeprecationWarning)
return self.find_loader(fullname, path)[0]
def find_spec(self, fullname, target=None):
"""Create a ModuleSpec for the specified module.
Returns None if the module cannot be found.
"""
module_info = _get_module_info(self, fullname)
if module_info is not None:
return _bootstrap.spec_from_loader(fullname, self, is_package=module_info)
else:
# Not a module or regular package. See if this is a directory, and
# therefore possibly a portion of a namespace package.
# We're only interested in the last path component of fullname
# earlier components are recorded in self.prefix.
modpath = _get_module_path(self, fullname)
if _is_dir(self, modpath):
# This is possibly a portion of a namespace
# package. Return the string representing its path,
# without a trailing separator.
path = f'{self.archive}{path_sep}{modpath}'
spec = _bootstrap.ModuleSpec(name=fullname, loader=None,
is_package=True)
spec.submodule_search_locations.append(path)
return spec
else:
return None
def get_code(self, fullname):
"""get_code(fullname) -> code object.
Return the code object for the specified module. Raise ZipImportError
if the module couldn't be imported.
"""
code, ispackage, modpath = _get_module_code(self, fullname)
return code
def get_data(self, pathname):
"""get_data(pathname) -> string with file data.
Return the data associated with 'pathname'. Raise OSError if
the file wasn't found.
"""
if alt_path_sep:
pathname = pathname.replace(alt_path_sep, path_sep)
key = pathname
if pathname.startswith(self.archive + path_sep):
key = pathname[len(self.archive + path_sep):]
try:
toc_entry = self._files[key]
except KeyError:
raise OSError(0, '', key)
return _get_data(self.archive, toc_entry,self.pwd)
# Return a string matching __file__ for the named module
def get_filename(self, fullname):
"""get_filename(fullname) -> filename string.
Return the filename for the specified module or raise ZipImportError
if it couldn't be imported.
"""
# Deciding the filename requires working out where the code
# would come from if the module was actually loaded
code, ispackage, modpath = _get_module_code(self, fullname)
return modpath
def get_source(self, fullname):
"""get_source(fullname) -> source string.
Return the source code for the specified module. Raise ZipImportError
if the module couldn't be found, return None if the archive does
contain the module, but has no source for it.
"""
mi = _get_module_info(self, fullname)
if mi is None:
raise ZipImportError(f"can't find module {fullname!r}", name=fullname)
path = _get_module_path(self, fullname)
if mi:
fullpath = _bootstrap_external._path_join(path, '__init__.py')
else:
fullpath = f'{path}.py'
try:
toc_entry = self._files[fullpath]
except KeyError:
# we have the module, but no source
return None
return _get_data(self.archive, toc_entry,self.pwd).decode()
# Return a bool signifying whether the module is a package or not.
def is_package(self, fullname):
"""is_package(fullname) -> bool.
Return True if the module specified by fullname is a package.
Raise ZipImportError if the module couldn't be found.
"""
mi = _get_module_info(self, fullname)
if mi is None:
raise ZipImportError(f"can't find module {fullname!r}", name=fullname)
return mi
# Load and return the module named by 'fullname'.
def load_module(self, fullname):
"""load_module(fullname) -> module.
Load the module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the imported
module, or raises ZipImportError if it could not be imported.
Deprecated since Python 3.10. Use exec_module() instead.
"""
msg = ("zipimport.zipimporter.load_module() is deprecated and slated for "
"removal in Python 3.12; use exec_module() instead")
_warnings.warn(msg, DeprecationWarning)
code, ispackage, modpath = _get_module_code(self, fullname)
mod = sys.modules.get(fullname)
if mod is None or not isinstance(mod, _module_type):
mod = _module_type(fullname)
sys.modules[fullname] = mod
mod.__loader__ = self
try:
if ispackage:
# add __path__ to the module *before* the code gets
# executed
path = _get_module_path(self, fullname)
fullpath = _bootstrap_external._path_join(self.archive, path)
mod.__path__ = [fullpath]
if not hasattr(mod, '__builtins__'):
mod.__builtins__ = __builtins__
_bootstrap_external._fix_up_module(mod.__dict__, fullname, modpath)
exec(code, mod.__dict__)
except:
del sys.modules[fullname]
raise
try:
mod = sys.modules[fullname]
except KeyError:
raise ImportError(f'Loaded module {fullname!r} not found in sys.modules')
_bootstrap._verbose_message('import {} # loaded from Zip {}', fullname, modpath)
return mod
def get_resource_reader(self, fullname):
"""Return the ResourceReader for a package in a zip file.
If 'fullname' is a package within the zip file, return the
'ResourceReader' object for the package. Otherwise return None.
"""
try:
if not self.is_package(fullname):
return None
except ZipImportError:
return None
from importlib.readers import ZipReader
return ZipReader(self, fullname)
def invalidate_caches(self):
"""Reload the file data of the archive path."""
try:
self._files = _read_directory(self.archive)
_zip_directory_cache[self.archive] = self._files
except ZipImportError:
_zip_directory_cache.pop(self.archive, None)
self._files = {}
def __repr__(self):
return f'<zipimporter object "{self.archive}{path_sep}{self.prefix}">'
# _zip_searchorder defines how we search for a module in the Zip
# archive: we first search for a package __init__, then for
# non-package .pyc, and .py entries. The .pyc entries
# are swapped by initzipimport() if we run in optimized mode. Also,
# '/' is replaced by path_sep there.
_zip_searchorder = (
(path_sep + '__init__.pyc', True, True),
(path_sep + '__init__.py', False, True),
('.pyc', True, False),
('.py', False, False),
)
# Given a module name, return the potential file path in the
# archive (without extension).
def _get_module_path(self, fullname):
return self.prefix + fullname.rpartition('.')[2]
# Does this path represent a directory?
def _is_dir(self, path):
# See if this is a "directory". If so, it's eligible to be part
# of a namespace package. We test by seeing if the name, with an
# appended path separator, exists.
dirpath = path + path_sep
# If dirpath is present in self._files, we have a directory.
return dirpath in self._files
# Return some information about a module.
def _get_module_info(self, fullname):
path = _get_module_path(self, fullname)
for suffix, isbytecode, ispackage in _zip_searchorder:
fullpath = path + suffix
if fullpath in self._files:
return ispackage
return None
# implementation
# _read_directory(archive) -> files dict (new reference)
#
# Given a path to a Zip archive, build a dict, mapping file names
# (local to the archive, using SEP as a separator) to toc entries.
#
# A toc_entry is a tuple:
#
# (__file__, # value to use for __file__, available for all files,
# # encoded to the filesystem encoding
# compress, # compression kind; 0 for uncompressed
# data_size, # size of compressed data on disk
# file_size, # size of decompressed data
# file_offset, # offset of file header from start of archive
# time, # mod time of file (in dos format)
# date, # mod data of file (in dos format)
# crc, # crc checksum of the data
# )
#
# Directories can be recognized by the trailing path_sep in the name,
# data_size and file_offset are 0.
def _read_directory(archive):
try:
fp = _io.open_code(archive)
except OSError:
raise ZipImportError(f"can't open Zip file: {archive!r}", path=archive)
with fp:
try:
fp.seek(-END_CENTRAL_DIR_SIZE, 2)
header_position = fp.tell()
buffer = fp.read(END_CENTRAL_DIR_SIZE)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if buffer[:4] != STRING_END_ARCHIVE:
# Bad: End of Central Dir signature
# Check if there's a comment.
try:
fp.seek(0, 2)
file_size = fp.tell()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
max_comment_start = max(file_size - MAX_COMMENT_LEN -
END_CENTRAL_DIR_SIZE, 0)
try:
fp.seek(max_comment_start)
data = fp.read()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
pos = data.rfind(STRING_END_ARCHIVE)
if pos < 0:
raise ZipImportError(f'not a Zip file: {archive!r}',
path=archive)
buffer = data[pos:pos+END_CENTRAL_DIR_SIZE]
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"corrupt Zip file: {archive!r}",
path=archive)
header_position = file_size - len(data) + pos
header_size = _unpack_uint32(buffer[12:16])
header_offset = _unpack_uint32(buffer[16:20])
if header_position < header_size:
raise ZipImportError(f'bad central directory size: {archive!r}', path=archive)
if header_position < header_offset:
raise ZipImportError(f'bad central directory offset: {archive!r}', path=archive)
header_position -= header_size
arc_offset = header_position - header_offset
if arc_offset < 0:
raise ZipImportError(f'bad central directory size or offset: {archive!r}', path=archive)
files = {}
# Start of Central Directory
count = 0
try:
fp.seek(header_position)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
while True:
buffer = fp.read(46)
if len(buffer) < 4:
raise EOFError('EOF read where not expected')
# Start of file header
if buffer[:4] != b'PK\x01\x02':
break # Bad: Central Dir File Header
if len(buffer) != 46:
raise EOFError('EOF read where not expected')
flags = _unpack_uint16(buffer[8:10])
compress = _unpack_uint16(buffer[10:12])
time = _unpack_uint16(buffer[12:14])
date = _unpack_uint16(buffer[14:16])
crc = _unpack_uint32(buffer[16:20])
data_size = _unpack_uint32(buffer[20:24])
file_size = _unpack_uint32(buffer[24:28])
name_size = _unpack_uint16(buffer[28:30])
extra_size = _unpack_uint16(buffer[30:32])
comment_size = _unpack_uint16(buffer[32:34])
file_offset = _unpack_uint32(buffer[42:46])
header_size = name_size + extra_size + comment_size
if file_offset > header_offset:
raise ZipImportError(f'bad local header offset: {archive!r}', path=archive)
file_offset += arc_offset
try:
name = fp.read(name_size)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if len(name) != name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
# On Windows, calling fseek to skip over the fields we don't use is
# slower than reading the data because fseek flushes stdio's
# internal buffers. See issue #8745.
try:
if len(fp.read(header_size - name_size)) != header_size - name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if flags & 0x800:
# UTF-8 file names extension
name = name.decode()
else:
# Historical ZIP filename encoding
try:
name = name.decode('ascii')
except UnicodeDecodeError:
name = name.decode('latin1').translate(cp437_table)
name = name.replace('/', path_sep)
path = _bootstrap_external._path_join(archive, name)
t = (path, compress, data_size, file_size, file_offset, time, date, crc)
files[name] = t
count += 1
_bootstrap._verbose_message('zipimport: found {} names in {!r}', count, archive)
return files
# During bootstrap, we may need to load the encodings
# package from a ZIP file. But the cp437 encoding is implemented
# in Python in the encodings package.
#
# Break out of this dependency by using the translation table for
# the cp437 encoding.
cp437_table = (
# ASCII part, 8 rows x 16 chars
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f'
'\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f'
' !"#$%&\'()*+,-./'
'0123456789:;<=>?'
'@ABCDEFGHIJKLMNO'
'PQRSTUVWXYZ[\\]^_'
'`abcdefghijklmno'
'pqrstuvwxyz{|}~\x7f'
# non-ASCII part, 16 rows x 8 chars
'\xc7\xfc\xe9\xe2\xe4\xe0\xe5\xe7'
'\xea\xeb\xe8\xef\xee\xec\xc4\xc5'
'\xc9\xe6\xc6\xf4\xf6\xf2\xfb\xf9'
'\xff\xd6\xdc\xa2\xa3\xa5\u20a7\u0192'
'\xe1\xed\xf3\xfa\xf1\xd1\xaa\xba'
'\xbf\u2310\xac\xbd\xbc\xa1\xab\xbb'
'\u2591\u2592\u2593\u2502\u2524\u2561\u2562\u2556'
'\u2555\u2563\u2551\u2557\u255d\u255c\u255b\u2510'
'\u2514\u2534\u252c\u251c\u2500\u253c\u255e\u255f'
'\u255a\u2554\u2569\u2566\u2560\u2550\u256c\u2567'
'\u2568\u2564\u2565\u2559\u2558\u2552\u2553\u256b'
'\u256a\u2518\u250c\u2588\u2584\u258c\u2590\u2580'
'\u03b1\xdf\u0393\u03c0\u03a3\u03c3\xb5\u03c4'
'\u03a6\u0398\u03a9\u03b4\u221e\u03c6\u03b5\u2229'
'\u2261\xb1\u2265\u2264\u2320\u2321\xf7\u2248'
'\xb0\u2219\xb7\u221a\u207f\xb2\u25a0\xa0'
)
_importing_zlib = False
# Return the zlib.decompress function object, or NULL if zlib couldn't
# be imported. The function is cached when found, so subsequent calls
# don't import zlib again.
def _get_decompress_func():
global _importing_zlib
if _importing_zlib:
# Someone has a zlib.py[co] in their Zip file
# let's avoid a stack overflow.
_bootstrap._verbose_message('zipimport: zlib UNAVAILABLE')
raise ZipImportError("can't decompress data; zlib not available")
_importing_zlib = True
try:
from zlib import decompress
except Exception:
_bootstrap._verbose_message('zipimport: zlib UNAVAILABLE')
raise ZipImportError("can't decompress data; zlib not available")
finally:
_importing_zlib = False
_bootstrap._verbose_message('zipimport: zlib available')
return decompress
# Given a path to a Zip file and a toc_entry, return the (uncompressed) data.
def _get_data(archive, toc_entry,pwd):
datapath, compress, data_size, file_size, file_offset, time, date, crc = toc_entry
if data_size < 0:
raise ZipImportError('negative data size')
# with _io.open_code(archive) as fp:
# # Check to make sure the local file header is correct
# try:
# fp.seek(file_offset)
# except OSError:
# raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
# buffer = fp.read(30)
# if len(buffer) != 30:
# raise EOFError('EOF read where not expected')
#
# if buffer[:4] != b'PK\x03\x04':
# # Bad: Local File Header
# raise ZipImportError(f'bad local file header: {archive!r}', path=archive)
#
# name_size = _unpack_uint16(buffer[26:28])
# extra_size = _unpack_uint16(buffer[28:30])
# header_size = 30 + name_size + extra_size
# file_offset += header_size # Start of file data
# try:
# fp.seek(file_offset)
# except OSError:
# raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
# raw_data = fp.read(data_size)
# if len(raw_data) != data_size:
# raise OSError("zipimport: can't read data")
#
# if compress == 0:
# # data is not compressed
# return raw_data
#
# # Decompress with zlib
# try:
# decompress = _get_decompress_func()
# except Exception:
# raise ZipImportError("can't decompress data; zlib not available")
# breakpoint()
# return decompress(raw_data, -15)
import zipfile
import os
if isinstance(pwd,str):
pwd=pwd.encode()
zif=zipfile.ZipFile(archive)
file_name=os.path.basename(datapath)
try:
b=zif.read(file_name,pwd=pwd)
except Exception:
raise ZipImportError('can not decompress data,maybe password is wrong')
return b
# Lenient date/time comparison function. The precision of the mtime
# in the archive is lower than the mtime stored in a .pyc: we
# must allow a difference of at most one second.
def _eq_mtime(t1, t2):
# dostime only stores even seconds, so be lenient
return abs(t1 - t2) <= 1
# Given the contents of a .py[co] file, unmarshal the data
# and return the code object. Raises ImportError it the magic word doesn't
# match, or if the recorded .py[co] metadata does not match the source.
def _unmarshal_code(self, pathname, fullpath, fullname, data):
exc_details = {
'name': fullname,
'path': fullpath,
}
flags = _bootstrap_external._classify_pyc(data, fullname, exc_details)
hash_based = flags & 0b1 != 0
if hash_based:
check_source = flags & 0b10 != 0
if (_imp.check_hash_based_pycs != 'never' and
(check_source or _imp.check_hash_based_pycs == 'always')):
source_bytes = _get_pyc_source(self, fullpath)
if source_bytes is not None:
source_hash = _imp.source_hash(
_bootstrap_external._RAW_MAGIC_NUMBER,
source_bytes,
)
_bootstrap_external._validate_hash_pyc(
data, source_hash, fullname, exc_details)
else:
source_mtime, source_size = \
_get_mtime_and_size_of_source(self, fullpath)
if source_mtime:
# We don't use _bootstrap_external._validate_timestamp_pyc
# to allow for a more lenient timestamp check.
if (not _eq_mtime(_unpack_uint32(data[8:12]), source_mtime) or
_unpack_uint32(data[12:16]) != source_size):
_bootstrap._verbose_message(
f'bytecode is stale for {fullname!r}')
return None
code = marshal.loads(data[16:])
if not isinstance(code, _code_type):
raise TypeError(f'compiled module {pathname!r} is not a code object')
return code
_code_type = type(_unmarshal_code.__code__)
# Replace any occurrences of '\r\n?' in the input string with '\n'.
# This converts DOS and Mac line endings to Unix line endings.
def _normalize_line_endings(source):
source = source.replace(b'\r\n', b'\n')
source = source.replace(b'\r', b'\n')
return source
# Given a string buffer containing Python source code, compile it
# and return a code object.
def _compile_source(pathname, source):
source = _normalize_line_endings(source)
return compile(source, pathname, 'exec', dont_inherit=True)
# Convert the date/time values found in the Zip archive to a value
# that's compatible with the time stamp stored in .pyc files.
def _parse_dostime(d, t):
return time.mktime((
(d >> 9) + 1980, # bits 9..15: year
(d >> 5) & 0xF, # bits 5..8: month
d & 0x1F, # bits 0..4: day
t >> 11, # bits 11..15: hours
(t >> 5) & 0x3F, # bits 8..10: minutes
(t & 0x1F) * 2, # bits 0..7: seconds / 2
-1, -1, -1))
# Given a path to a .pyc file in the archive, return the
# modification time of the matching .py file and its size,
# or (0, 0) if no source is available.
def _get_mtime_and_size_of_source(self, path):
try:
# strip 'c' or 'o' from *.py[co]
assert path[-1:] in ('c', 'o')
path = path[:-1]
toc_entry = self._files[path]
# fetch the time stamp of the .py file for comparison
# with an embedded pyc time stamp
time = toc_entry[5]
date = toc_entry[6]
uncompressed_size = toc_entry[3]
return _parse_dostime(date, time), uncompressed_size
except (KeyError, IndexError, TypeError):
return 0, 0
# Given a path to a .pyc file in the archive, return the
# contents of the matching .py file, or None if no source
# is available.
def _get_pyc_source(self, path):
# strip 'c' or 'o' from *.py[co]
assert path[-1:] in ('c', 'o')
path = path[:-1]
try:
toc_entry = self._files[path]
except KeyError:
return None
else:
return _get_data(self.archive, toc_entry,self.pwd)
# Get the code object associated with the module specified by
# 'fullname'.
def _get_module_code(self, fullname):
path = _get_module_path(self, fullname)
import_error = None
for suffix, isbytecode, ispackage in _zip_searchorder:
fullpath = path + suffix
_bootstrap._verbose_message('trying {}{}{}', self.archive, path_sep, fullpath, verbosity=2)
try:
toc_entry = self._files[fullpath]
except KeyError:
pass
else:
modpath = toc_entry[0]
data = _get_data(self.archive, toc_entry,self.pwd)
code = None
if isbytecode:
try:
code = _unmarshal_code(self, modpath, fullpath, fullname, data)
except ImportError as exc:
import_error = exc
else:
code = _compile_source(modpath, data)
if code is None:
# bad magic number or non-matching mtime
# in byte code, try next
continue
modpath = toc_entry[0]
return code, ispackage, modpath
else:
if import_error:
msg = f"module load failed: {import_error}"
raise ZipImportError(msg, name=fullname) from import_error
else:
raise ZipImportError(f"can't find module {fullname!r}", name=fullname)
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