added elixir oidc backend, python soical auth version upgraded

config/oidc_backends_config.xml.sample

@@ -100,4 +100,13 @@ Please mind `http` and `https`.
         <!-- (Optional) Override the default idp hint -->
         <!-- <idphint>cilogon</idphint> -->
     </provider>
+    
+    <! -- Documentation: https://docs.google.com/document/d/1vOyW4dLVozy7oQvINYxHheVaLvwNsvvghbiKTLg7RbY-->
+    <provider name="Elixir">
+        <client_id>...</client_id>
+        <client_secret>...</client_secret>
+        <redirect_uri>http://localhost:8080/authnz/elixir/callback</redirect_uri>
+        <prompt>consent</prompt>
+    </provider>
+
 </OIDC>

lib/galaxy/authnz/psa_authnz.py

@@ -19,12 +19,14 @@ DEFAULTS = {
 
 BACKENDS = {
     'google': 'social_core.backends.google_openidconnect.GoogleOpenIdConnect',
-    "globus": "social_core.backends.globus.GlobusOpenIdConnect"
+    "globus": "social_core.backends.globus.GlobusOpenIdConnect",
+    'elixir': 'social_core.backends.elixir.ElixirOpenIdConnect'
 }
 
 BACKENDS_NAME = {
     'google': 'google-openidconnect',
-    "globus": "globus"
+    "globus": "globus",
+    'elixir': 'elixir'
 }
 
 AUTH_PIPELINE = (

lib/galaxy/dependencies/pipfiles/default/pinned-requirements.txt

@@ -163,7 +163,7 @@ schema-salad==2.7.20181126142424
 shellescape==3.4.1
 simplejson==3.16.0
 six==1.11.0
-social-auth-core[openidconnect]==3.1.0
+social-auth-core[openidconnect]==3.1.0+gx0
 sqlalchemy-migrate==0.12.0
 sqlalchemy-utils==0.33.11
 sqlalchemy==1.2.18