The key namespace one store writes inside.
Every key the engine names is relative to the store root, and the provider puts it under
_strata/<site-id>/ so a bucket or a container can hold two sites and neither sees the other in a
listing. The prefix goes on the way out and comes off the way back, in one place, because a
provider that adds it in put() and forgets it in list() reports keys nothing can read.
A key arrives from a manifest and a manifest can be tampered with, so .., . and empty segments
are refused by name rather than normalised away.
resolve(string $key) : string
Turns a caller's key into the key the endpoint sees.
| string | $key | Object key relative to the store root. |
When the key is empty, contains a traversal or empty segment or a null byte, or carries the suffix reserved for a write in progress.
The key with ObjectKeys::$prefix in front of it.