* filesystem determination works with encrypted containers

src/cryptobox/core/container.py

@@ -453,18 +453,26 @@ class CryptoBoxContainer:
 
 	def __get_fs_type(self):
 		"returns the filesystem used on a container"
-		#TODO: with a luks volume use the mapping instead of the device
+		## should we handle device mapping or plain device
+		if self.__is_luks_partition() and self.name:
+			container = os.path.join(self.__dmDir, self.name)
+			## can't determine fs while encrypted
+			if not self.is_mounted():
+				return "unavailable"
+		else:
+			container = self.device
 		proc = subprocess.Popen(
 			shell = False,
 			stdout = subprocess.PIPE,
 			stderr = subprocess.PIPE,
 			args = [ self.cbox.prefs["Programs"]["blkid"],
 				"-s","TYPE",
-				self.device ])
+				container ])
 		(stdout, stderr) = proc.communicate()
 		if proc.returncode == 0:
 			return stdout.split("TYPE=")[1]
 		else:
+			## if something goes wrong don't dig deeper
 			self.cbox.log.warn("filesystem determination failed: %s" % \
 					(stderr.strip(), ))
 			return "undetermined"