Enhancement: Checksum support
We now support checksums on file uploads and PROPFIND results. On uploads, the ocdav service now forwards the OC-Checksum (and the similar TUS Upload-Checksum) header to the storage provider. We added an internal http status code that allows storage drivers to return checksum errors. On PROPFINDs, ocdav now renders the <oc:checksum> header in a bug compatible way for oc10 backward compatability with existing clients. Finally, GET and HEAD requests now return the OC-Checksum header.
cs3org#1400 owncloud/core#38304 owncloud/ocis#1291 owncloud/ocis#1316