1 files changed, 41 insertions, 0 deletions
diff --git a/third_party/python/pyasn1-modules/tools/crldump.py b/third_party/python/pyasn1-modules/tools/crldump.py
new file mode 100755
index 0000000000..b871ddd962
--- /dev/null
+++ b/third_party/python/pyasn1-modules/tools/crldump.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+# Read X.509 CRL on stdin, print them pretty and encode back into 
+# original wire format.
+# CRL can be generated with "openssl openssl ca -gencrl ..." commands.
+#
+from pyasn1_modules import rfc2459, pem
+from pyasn1.codec.der import encoder, decoder
+import sys
+
+if len(sys.argv) != 1:
+    print("""Usage:
+$ cat crl.pem | %s""" % sys.argv[0])
+    sys.exit(-1)
+
+asn1Spec = rfc2459.CertificateList()
+
+cnt = 0
+
+while True:
+    idx, substrate = pem.readPemBlocksFromFile(sys.stdin, ('-----BEGIN X509 CRL-----', '-----END X509 CRL-----'))
+    if not substrate:
+        break
+
+    key, rest = decoder.decode(substrate, asn1Spec=asn1Spec)
+
+    if rest:
+        substrate = substrate[:-len(rest)]
+
+    print(key.prettyPrint())
+
+    assert encoder.encode(key) == substrate, 'pkcs8 recode fails'
+
+    cnt += 1
+
+print('*** %s CRL(s) re/serialized' % cnt)