spec: Quota handling

How Quota is Calculated

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Special case: shared folders

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Representing Quotas via WebDAV

ownCloud returns the following properties as defined in RFC 4331:

Name	Purpose
DAV:quota-available-bytes	Indicates the maximum amount of additional storage available to be allocated to a resource.
DAV:quota-used-bytes	Contains the amount of storage counted against the quota on a resource.

Consequences of Exceeding Quota

Quotas in WebDAV are hard-quotas, i.e. once hit, the user will not be able to upload any more files.