File handler uri to os path convert fix

Author: p1c2u

openapi_spec_validator/handlers/file.py

@@ -3,6 +3,7 @@
 from yaml import load
 
 from openapi_spec_validator.handlers.base import BaseHandler
+from openapi_spec_validator.handlers.utils import uri_to_path
 from openapi_spec_validator.loaders import ExtendedSafeLoader
 
 
@@ -19,12 +20,12 @@ def __call__(self, f):
 class FileHandler(FileObjectHandler):
     """OpenAPI spec validator file path handler."""
 
-    def __call__(self, f):
-        if isinstance(f, StringIO):
-            return super(FileHandler, self).__call__(f)
+    def __call__(self, uri):
+        if isinstance(uri, StringIO):
+            return super(FileHandler, self).__call__(uri)
 
-        assert f.startswith("file")
+        assert uri.startswith("file")
 
-        filename = f[7:]
-        with open(filename) as fh:
+        filepath = uri_to_path(uri)
+        with open(filepath) as fh:
             return super(FileHandler, self).__call__(fh)

openapi_spec_validator/handlers/utils.py

@@ -0,0 +1,12 @@
+import os.path
+
+from six.moves.urllib.parse import urlparse, unquote
+from six.moves.urllib.request import url2pathname
+
+
+def uri_to_path(uri):
+    parsed = urlparse(uri)
+    host = "{0}{0}{mnt}{0}".format(os.path.sep, mnt=parsed.netloc)
+    return os.path.normpath(
+        os.path.join(host, url2pathname(unquote(parsed.path)))
+    )