initial code for dumping imessages in a reasonable format

dump-imessages/iphone-dataprotection/python_scripts/keychain/__init__.py

@@ -0,0 +1,12 @@
+import sqlite3
+from keychain3 import Keychain3
+from keychain4 import Keychain4
+
+def keychain_load(filename, keybag, key835):
+    version = sqlite3.connect(filename).execute("SELECT version FROM tversion").fetchone()[0]
+    #print "Keychain version : %d" % version
+    if version == 3:
+        return Keychain3(filename, key835)
+    elif version >= 4:
+        return Keychain4(filename, keybag)
+    raise Exception("Unknown keychain version %d" % version)