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120 lines
4.2 KiB
Python
Executable File
120 lines
4.2 KiB
Python
Executable File
#!/usr/bin/python3
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import re
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import subprocess
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import sys
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from typing import Optional
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import requests
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# Part 1: Verify SHA512 hash - this is the same as running `shasum -a 512 {release}` and comparing it against `{release}.sha512`
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def get_sha512_hash(filename: str) -> str:
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"""Run the shasum command on the file and return the SHA512 hash."""
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result = subprocess.run(["shasum", "-a", "512", filename], stdout=subprocess.PIPE)
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sha512_hash = result.stdout.decode().split()[0]
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return sha512_hash
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def read_sha512_file(filename: str) -> str:
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"""Read the corresponding .sha512 file and process its contents."""
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sha_filename = filename + ".sha512"
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with open(sha_filename) as file:
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lines = file.readlines()
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processed_sha = "".join(lines[1:]).replace(" ", "").replace("\n", "").lower()
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return processed_sha
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def verify_sha512(filename: str) -> str:
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"""Verify if the SHA512 hash of the file matches with the hash in the .sha512 file."""
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sha512_hash = get_sha512_hash(filename)
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sha512_file_content = read_sha512_file(filename)
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if sha512_hash == sha512_file_content:
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return "SHA verified"
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else:
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return "SHA failed"
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# Part 2: Verify RSA key - this is the same as running `gpg --verify {release}.asc {release}` and comparing the RSA key and email address against the KEYS file
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def get_gpg_info(filename: str) -> tuple[Optional[str], Optional[str]]:
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"""Run the GPG verify command and extract RSA key and email address."""
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asc_filename = filename + ".asc"
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result = subprocess.run(
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["gpg", "--verify", asc_filename, filename], capture_output=True
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)
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output = result.stderr.decode()
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rsa_key = re.search(r"RSA key ([0-9A-F]+)", output)
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email = re.search(r'issuer "([^"]+)"', output)
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rsa_key_result = rsa_key.group(1) if rsa_key else None
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email_result = email.group(1) if email else None
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# Debugging: print warnings if rsa_key or email is not found
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if rsa_key_result is None:
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print("Warning: No RSA key found in GPG verification output.")
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if email_result is None:
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print("Warning: No email address found in GPG verification output.")
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return rsa_key_result, email_result
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def verify_rsa_key(rsa_key: str, email: Optional[str]) -> str:
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"""Fetch the KEYS file and verify if the RSA key and email match."""
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url = "https://downloads.apache.org/superset/KEYS"
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response = requests.get(url)
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if response.status_code == 200:
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if rsa_key not in response.text:
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return "RSA key not found on KEYS page"
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# Check if email is None or not in response.text
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if email and email in response.text:
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return "RSA key and email verified against Apache KEYS file"
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elif email:
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return "RSA key verified, but Email not found on KEYS page"
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else:
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return "RSA key verified, but Email not available for verification"
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else:
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return "Failed to fetch KEYS file"
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def verify_sha512_and_rsa(filename: str) -> None:
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"""Verify SHA512 hash and RSA key."""
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sha_result = verify_sha512(filename)
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print(sha_result)
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rsa_key, email = get_gpg_info(filename)
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if rsa_key:
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rsa_result = verify_rsa_key(rsa_key, email)
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print(rsa_result)
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else:
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print("GPG verification failed: RSA key or email not found")
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if __name__ == "__main__":
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if len(sys.argv) != 2:
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print("Usage: python script.py <filename>")
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else:
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filename = sys.argv[1]
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verify_sha512_and_rsa(filename)
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