building incrementally across runns

1 files changed, 35 insertions, 0 deletions

diff --git a/monitor/josef_lib.py b/monitor/josef_lib.py
index 89756cf..afa165b 100644
--- a/monitor/josef_lib.py
+++ b/monitor/josef_lib.py
@@ -22,6 +22,41 @@ from Crypto.Hash import SHA256
 import Crypto.PublicKey.RSA as RSA
 from Crypto.Signature import PKCS1_v1_5
 
+# def read_sth(fn):
+#     try:
+#         f = open(fn)
+#     except IOError, e:
+#         if e.errno == errno.ENOENT:
+#             return None
+#         raise e
+#     return json.loads(f.read())
+
+def encode_tree(tree):
+    res = []
+    for layer in tree:
+        res.append([])
+        for item in layer:
+            tmp = base64.b64encode(item)
+            res[-1].append(tmp)
+    return res
+
+def decode_tree(tree):
+    res = []
+    for layer in tree:
+        res.append([])
+        for item in layer:
+            tmp = base64.b64decode(item)
+            res[-1].append(tmp)
+    return res
+
+def append_file(fn, content):
+    with open(fn, 'a') as f:
+        for item in content:
+            try: 
+                f.write(json.dumps(item) + "\n")
+            except:
+                pass
+
 def get_cert_info(s):
     p = subprocess.Popen(
         ["openssl", "x509", "-noout", "-subject", "-issuer", "-inform", "der"],