[FEATURE REQUEST] Server-side search

[felix-schwarz]

Support for server-side search should be integrated into the app as a search scope.

A major advantage of server-side search over searching the locally maintained index is server-side search's ability to index the contents of files and extend its search to that.

Research

• search is listed as gPRC service on owncloud.dev
• a gPRC library for iOS is available and actively maintained, but also adds potentially heavy dependencies like BoringSSL that - if needed - favor an implementation outside the SDK and either as an addition to SDK - or inside the app itself. Complexity of such an approach TBD.
• as seen in the Web Inspector, the ocis web UI appears to use REPORT requests to perform searches instead, which returns a WebDAV response. If this path is also available to the iOS app, adoption should be much easier and straightforward.

[felix-schwarz]

@kulmann @butonic Can you provide insight on the availability of and documentation for server-side search via REPORT requests?