Break ground on a config parser

config-parser.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+
+import sys
+import json
+from datetime import datetime
+
+def parse_timestamp(ts):
+  try:
+    int(ts)
+    dt = datetime.fromtimestamp(ts)
+    return dt
+  except:
+    raise ValueError, "Invalid timestamp integer: " + `ts`
+
+
+class Config:
+  def __init__(self, cfg_file_name = "config.json"):
+    f = open(cfg_file_name)
+    cfg = json.loads(f.read())
+    for atr, val in cfg.items():
+      #print atr,val
+      # Parse and verify each attribute of the structure
+      if atr.startswith("comment"):
+        continue
+      if atr == "author":
+        if type(val) not in [str, unicode]:
+          raise TypeError, "Author must be a string: " + `val`
+      elif atr == "timestamp":
+        self.timestamp = parse_timestamp(val)
+      elif atr == "expires":
+        self.expires = parse_timestamp(val)
+      elif atr == "address-domains":
+        if type(val) != dict:
+          raise TypeError, "address-domains " + `val`
+      else:
+        sys.stderr.write("Uknown attribute: " + `atr` + "\n")
+
+if __name__ == "__main__":
+  c = Config()