Work around Eve not supporting returning binary data

pillar/api/organizations/hooks.py

@@ -16,6 +16,24 @@ def pre_get_organizations(request, lookup):
     lookup['$or'] = [{'admin_uid': user.user_id}, {'members': user.user_id}]
 
 
+def on_fetched_item_organizations(org_doc: dict):
+    """Filter out binary data.
+
+    Eve cannot return binary data, at least not until we upgrade to a version
+    that depends on Cerberus >= 1.0.
+    """
+
+    for ipr in org_doc.get('ip_ranges') or []:
+        ipr.pop('start', None)
+        ipr.pop('end', None)
+        ipr.pop('prefix', None)  # not binary, but useless without the other fields.
+
+
+def on_fetched_resource_organizations(response: dict):
+    for org_doc in response.get('_items', []):
+        on_fetched_item_organizations(org_doc)
+
+
 def pre_post_organizations(request):
     user = current_user()
     if not user.has_cap('create-organization'):
@@ -25,3 +43,6 @@ def pre_post_organizations(request):
 def setup_app(app):
     app.on_pre_GET_organizations += pre_get_organizations
     app.on_pre_POST_organizations += pre_post_organizations
+
+    app.on_fetched_item_organizations += on_fetched_item_organizations
+    app.on_fetched_resource_organizations += on_fetched_resource_organizations