inspect: Add Timestamps to output

Author: jku

src/pypi_attestations/_cli.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import argparse
+import base64
 import json
 import logging
 import typing
@@ -11,6 +12,7 @@
 from tempfile import TemporaryDirectory
 
 import requests
+from rfc3161_client import decode_timestamp_response
 import sigstore.oidc
 from cryptography import x509
 from packaging.utils import (
@@ -510,6 +512,18 @@ def _inspect(args: argparse.Namespace) -> None:
         )
         for idx, entry in enumerate(verification_material.transparency_entries):
             _logger.info(f"\tLog Index: {entry['logIndex']}")
+            kv = entry['kindVersion']
+            _logger.info(f"\tEntry type: {kv['kind']} {kv['version']}")
+
+        # Timestamps
+        _logger.info(
+            f"Timestamps ({len(verification_material.timestamps)}):"
+        )
+        for data in verification_material.timestamps:
+            ts = decode_timestamp_response(base64.b64decode(data))
+            _logger.info(f"\tTime: {ts.tst_info.gen_time}")
+
+
 
 
 def _verify_attestation(args: argparse.Namespace) -> None: