erp5_oauth_facebook_login: Search Login avoiding security_uids

This makes exponentially faster, if you have way too many security uids.

bt5/erp5_oauth_facebook_login/ExtensionTemplateItem/portal_components/extension.erp5.FacebookLoginUtility.py

 import facebook
 from Products.ERP5Security.ERP5ExternalOauth2ExtractionPlugin import getFacebookUserEntry
+from zExceptions import Unauthorized
 
 def getAccessTokenFromCode(self, code, redirect_uri):
   client_id, secret_key = self.ERP5Site_getFacebookClientIdAndSecretKey()
@@ -14,5 +15,14 @@ def unrestrictedSearchFacebookConnector(self):
             validation_state="validated",
             limit=2)
 
+def unrestrictedSearchFacebookLogin(self, login, REQUEST=None):
+  if REQUEST is not None:
+    raise Unauthorized
+
+  return self.getPortalObject().portal_catalog.unrestrictedSearchResults(
+    portal_type="Facebook Login",
+    reference=login,
+    validation_state="validated", limit=1)
+
 def getUserEntry(token):
   return getFacebookUserEntry(token)

bt5/erp5_oauth_facebook_login/SkinTemplateItem/portal_skins/erp5_oauth_facebook_login/ERP5Site_getFacebookLogin.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="ExternalMethod" module="Products.ExternalMethod.ExternalMethod"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_function</string> </key>
+            <value> <string>unrestrictedSearchFacebookLogin</string> </value>
+        </item>
+        <item>
+            <key> <string>_module</string> </key>
+            <value> <string>FacebookLoginUtility</string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>ERP5Site_getFacebookLogin</string> </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string></string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_oauth_facebook_login/SkinTemplateItem/portal_skins/erp5_oauth_facebook_login/ERP5Site_getPersonFromFacebookLogin.py

@@ -3,12 +3,12 @@ from zExceptions import Unauthorized
 if REQUEST is not None:
   raise Unauthorized
 
-portal_catalog = context.getPortalObject().portal_catalog
+login = context.ERP5Site_getFacebookLogin(login)
 
-login = portal_catalog.getResultValue(
-  portal_type="Facebook Login",
-  reference=login,
-  validation_state="validated")
+if login is None:
+  return login
 
-if login is not None:
-  return login.getParentValue().getRelativeUrl()
+if len(login) > 1:
+  raise ValueError("Duplicated User")
+
+return login[0].getParentValue().getRelativeUrl()