In previous implementation node's Object Search V2 service handler created a
new request for each RPC. Now original requests are re-signed according to
API specification. Logical handler abstracts from this version-dependent
logic through `RequestForwarder` callback.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Support processing of NetmapEpoch and NetmapLookupDepth X-headers when
processing object read operations. Placement for operations
Get/Head/GetRange/GetRangeHash/Search is built for the epoch specified in
NetmapEpoch X-header (by default latest). Also the specified operations are
processed until success is achieved for network maps from the past up to
NetmapLookupDepth value. Behavior for default values (zero or missing) left
unchanged.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Refactor query to match object and its parents in a single call. Support
KeyRoot and KeyLeaf filters.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
