rgw/storage class. Don't inherit storage class for copy object.

When an object is copied, it should only be depending on data
in the request to determine the storage class, and if it is
not specified, it should default to 'STANDARD'.  In radosgw,
this means that this is another attribute (similar to encryption)
that should not be merged from the source object.

Fixes: https://tracker.ceph.com/issues/67787
Signed-off-by: Marcus Watts <mwatts@redhat.com>

diff --git a/src/rgw/rgw_op.cc b/src/rgw/rgw_op.cc
index 25eb1c05582370dd24b228ed1a9c63039d11d9be..bfa72c7be5f5f00d7611a04f8ef6fb176ccfd0aa 100644 (file)
--- a/src/rgw/rgw_op.cc
+++ b/src/rgw/rgw_op.cc
@@ -6057,6 +6057,7 @@ class RGWCOE_make_filter_pipeline : public rgw::sal::ObjectFilter {
   std::unique_ptr<RGWGetObj_Filter> cb;
   std::map<std::string, ceph::buffer::list> src_attrs;
   std::map<std::string, ceph::buffer::list> enc_attrs;
+  bufferlist requested_sc;
   bool skip_decrypt;
   DoutPrefixProvider *dpp;
   boost::optional<RGWGetObj_Decompress> decompress;
@@ -6225,6 +6226,10 @@ ldpp_dout(dpp, 0) << "TEMP: end_x=" << end_x << " obj_size=" << obj_size << dend
     // we need it to be just the requested settings
     clear_encryption_attrs(attrs);
     merge_attrs(enc_attrs, attrs);     // request & bucket encryption defaults
+    attrs.erase(RGW_ATTR_STORAGE_CLASS);       // do not inherit from source
+    if (requested_sc.length() > 0) {
+      attrs[RGW_ATTR_STORAGE_CLASS] = std::move(requested_sc);
+    }
     attrs.erase(RGW_ATTR_COMPRESSION); // only true source: zone data
     op_ret = get_encrypt_filter(&encrypt, filter);
     if (op_ret < 0) {
@@ -6258,6 +6263,10 @@ ldpp_dout(dpp, 0) << "TEMP: end_x=" << end_x << " obj_size=" << obj_size << dend
   void set_src_attrs(std::map<std::string, ceph::buffer::list> &_src) override {
     src_attrs = filter_encryption_compression_attrs(_src, true);
     enc_attrs = filter_encryption_compression_attrs(attrs, false);
+    auto iter = attrs.find(RGW_ATTR_STORAGE_CLASS);
+    if (iter != attrs.end()) {
+      requested_sc.append(iter->second);
+    }
   };
   bool need_copy_data() override {
     return rgw_need_copy_data( src_attrs, s );