2.2.4 Lock Headers

WebDAV Protocol: Client Extensions extend the semantics of an existing LOCK header to enable resource locking and unlocking capabilities on the GET, PUT, and POST commands. This enhancement eliminates the need to send separate messages. This protocol also adds the X-MSDAVEXTLockTimeout header to indicate the lock duration. The Lock-Token header indicates the lock token, as specified in [RFC4918] section 6.3.<8>