[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/pyasn1-modules/tools/cmpdump.py

Index: third_party/gsutil/third_party/pyasn1-modules/tools/cmpdump.py
diff --git a/third_party/gsutil/third_party/pyasn1-modules/tools/cmpdump.py b/third_party/gsutil/third_party/pyasn1-modules/tools/cmpdump.py
new file mode 100755
index 0000000000000000000000000000000000000000..74c4f77a4ecb386387f45bcdef00d8858aa64103
--- /dev/null
+++ b/third_party/gsutil/third_party/pyasn1-modules/tools/cmpdump.py
@@ -0,0 +1,28 @@
+#!/usr/bin/python
+# Read ASN.1/PEM CMP message on stdin, parse into
+# plain text, then build substrate from it
+from pyasn1.codec.der import decoder, encoder
+from pyasn1_modules import rfc4210, pem
+from pyasn1 import debug
+import sys
+
+if len(sys.argv) == 2 and sys.argv[1] == '-d':
+    debug.setLogger(debug.Debug('all'))
+elif len(sys.argv) != 1:
+    print("""Usage:
+$ cat cmp.pem | %s [-d]""" % sys.argv[0])
+    sys.exit(-1)
+    
+pkiMessage = rfc4210.PKIMessage()
+
+substrate = pem.readBase64FromFile(sys.stdin)
+if not substrate:
+    sys.exit(0)
+        
+pkiMsg, rest = decoder.decode(substrate, asn1Spec=pkiMessage)
+
+print(pkiMsg.prettyPrint())
+
+assert encoder.encode(pkiMsg, defMode=False) == substrate or \
+       encoder.encode(pkiMsg, defMode=True) == substrate, \
+       'CMP message recode fails'