Make sure we support windows filenames

Consider refactoring out the various URL openning code into
one that just returns the open file handle.  This would require changing
the config option of "filename" to "location" and rejigging a few other
bits elsewhere, but would centralize and make it more managable.

volatility/framework/automagic/stacker.py

@@ -8,7 +8,8 @@ once a layer successfully stacks on top of the existing layers, it is removed fr
 """
 
 import logging
-from urllib import parse
+import urllib.parse
+import urllib.request
 
 import volatility
 from volatility.framework import configuration, interfaces
@@ -64,12 +65,12 @@ class LayerStacker(interfaces.automagic.AutomagicInterface):
             return []
         self._check_type(location, str)
         self._check_type(requirement, interfaces.configuration.RequirementInterface)
-        location = parse.urlparse(location)
+        location = urllib.parse.urlparse(location)
 
         # Setup the local copy of the resource
         self.local_store = None
         if location.scheme == "file":
-            self.local_store = location.path
+            self.local_store = urllib.request.url2pathname(location.path)
         else:
             vollog.warning("Only file scheme supported for single-location")
             return []

volatility/framework/symbols/intermed.py

@@ -6,6 +6,7 @@ import lzma
 import os
 import pathlib
 import urllib.parse
+import urllib.request
 
 from volatility import schemas
 from volatility.framework import class_subclasses, constants, exceptions, interfaces, objects
@@ -76,7 +77,7 @@ class IntermediateSymbolTable(interfaces.symbols.SymbolTableInterface):
 
         # Open the file and test the version
         self._versions = dict([(x.version, x) for x in class_subclasses(ISFormatTable)])
-        url_path = urllib.parse.unquote(url.path)
+        url_path = urllib.request.url2pathname(url.path)
         if url_path.endswith('.xz'):
             fp = lzma.open(url_path, 'rt')
         else: