mirror of
https://github.com/1Panel-dev/MaxKB.git
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107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
# coding=utf-8
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import os
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import pickle
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import subprocess
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import sys
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from textwrap import dedent
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import uuid_utils.compat as uuid
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from maxkb.const import BASE_DIR, CONFIG
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from maxkb.const import PROJECT_DIR
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python_directory = sys.executable
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class ToolExecutor:
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def __init__(self, sandbox=False):
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self.sandbox = sandbox
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if sandbox:
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self.sandbox_path = '/opt/maxkb-app/sandbox'
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self.user = 'sandbox'
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else:
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self.sandbox_path = os.path.join(PROJECT_DIR, 'data', 'sandbox')
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self.user = None
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self._createdir()
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if self.sandbox:
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os.system(f"chown -R {self.user}:root {self.sandbox_path}")
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self.banned_keywords = CONFIG.get("SANDBOX_PYTHON_BANNED_KEYWORDS", 'nothing_is_banned').split(',');
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def _createdir(self):
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old_mask = os.umask(0o077)
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try:
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os.makedirs(self.sandbox_path, 0o700, exist_ok=True)
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os.makedirs(os.path.join(self.sandbox_path, 'execute'), 0o700, exist_ok=True)
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os.makedirs(os.path.join(self.sandbox_path, 'result'), 0o700, exist_ok=True)
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finally:
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os.umask(old_mask)
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def exec_code(self, code_str, keywords):
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self.validateBannedKeywords(code_str)
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_id = str(uuid.uuid7())
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success = '{"code":200,"msg":"成功","data":exec_result}'
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err = '{"code":500,"msg":str(e),"data":None}'
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result_path = f'{self.sandbox_path}/result/{_id}.result'
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python_paths = CONFIG.get_sandbox_python_package_paths().split(',')
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_exec_code = f"""
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try:
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import os
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import sys
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import pickle
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path_to_exclude = ['/opt/py3/lib/python3.11/site-packages', '/opt/maxkb-app/apps']
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sys.path = [p for p in sys.path if p not in path_to_exclude]
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sys.path += {python_paths}
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env = dict(os.environ)
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for key in list(env.keys()):
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if key in os.environ and (key.startswith('MAXKB') or key.startswith('POSTGRES') or key.startswith('PG') or key.startswith('REDIS') or key == 'PATH'):
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del os.environ[key]
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locals_v={'{}'}
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keywords={keywords}
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globals_v=globals()
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exec({dedent(code_str)!a}, globals_v, locals_v)
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f_name, f = locals_v.popitem()
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for local in locals_v:
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globals_v[local] = locals_v[local]
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exec_result=f(**keywords)
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with open({result_path!a}, 'wb') as file:
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file.write(pickle.dumps({success}))
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except Exception as e:
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with open({result_path!a}, 'wb') as file:
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file.write(pickle.dumps({err}))
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"""
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if self.sandbox:
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subprocess_result = self._exec_sandbox(_exec_code, _id)
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else:
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subprocess_result = self._exec(_exec_code)
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if subprocess_result.returncode == 1:
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raise Exception(subprocess_result.stderr)
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with open(result_path, 'rb') as file:
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result = pickle.loads(file.read())
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os.remove(result_path)
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if result.get('code') == 200:
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return result.get('data')
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raise Exception(result.get('msg'))
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def _exec_sandbox(self, _code, _id):
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exec_python_file = f'{self.sandbox_path}/execute/{_id}.py'
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with open(exec_python_file, 'w') as file:
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file.write(_code)
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os.system(f"chown {self.user}:root {exec_python_file}")
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kwargs = {'cwd': BASE_DIR}
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subprocess_result = subprocess.run(
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['su', '-s', python_directory, '-c', "exec(open('" + exec_python_file + "').read())", self.user],
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text=True,
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capture_output=True, **kwargs)
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os.remove(exec_python_file)
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return subprocess_result
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def validateBannedKeywords(self, code_str):
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matched = next((bad for bad in self.banned_keywords if bad in code_str), None)
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if matched:
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raise Exception(f"keyword '{matched}' is banned in the tool.")
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@staticmethod
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def _exec(_code):
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return subprocess.run([python_directory, '-c', _code], text=True, capture_output=True)
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