Remove jwt validation for jschorr to fix later

Refactor oauth validate method to take config over entire appconfig

util/secscan/secscan_util.py

@@ -0,0 +1,22 @@
+from urlparse import urljoin
+
+from flask import url_for
+
+
+def get_blob_download_uri_getter(context, url_scheme_and_hostname):
+  """
+  Returns a function with context to later generate the uri for a download blob
+  :param context: Flask RequestContext
+  :param url_scheme_and_hostname: URLSchemeAndHostname class instance
+  :return: function (repository_and_namespace, checksum) -> uri
+  """
+  def create_uri(repository_and_namespace, checksum):
+    """
+    Creates a uri for a download blob from a repository, namespace, and checksum from earlier context
+    """
+    with context:
+      relative_layer_url = url_for('v2.download_blob', repository=repository_and_namespace,
+                                   digest=checksum)
+    return urljoin(url_scheme_and_hostname.get_url(), relative_layer_url)
+
+  return create_uri