http://www.rfc-editor.org/rfc/rfc5323.txt
RFC 5323: Web Distributed Authoring and Versioning (WebDAV) SEARCH, J. Reschke, S. Reddy, J. Davis, A. Babich2008-11-01T23:00:00-00:00This document specifies a set of methods, headers, and properties composing Web Distributed Authoring and Versioning (WebDAV) SEARCH, an application of the HTTP/1.1 protocol to efficiently search for DAV resources based upon a set of client-supplied criteria. [STANDARDS-TRACK]