Quota management in WebDAV is supported through the use of the WebDAV Quota Extension, which is defined in RFC 4331. This extension provides a standard mechanism for a server to advertise the amount of storage space available to a client, as well as the amount of storage space used by a client. It also defines a standard way for clients to request more storage space or to delete files in order to free up space.
When a client makes a request to a server that supports the WebDAV Quota Extension, the server can include information about the available storage space and the client’s usage in the response headers. The client can then use this information to manage its own storage space, for example by preventing users from uploading new files when the maximum quota has been reached.
The WebDAV Quota Extension also provides a way for clients to request additional storage space from the server, for example by sending a PUT request with the X-MS-REQUESTED-SPACE header indicating the amount of space required. The server can then respond with a 507 Insufficient Storage status code if it cannot fulfill the request.
Overall, the WebDAV Quota Extension provides a standard way for clients and servers to manage and monitor storage space, which can be useful in a variety of use cases, such as cloud storage services or enterprise content management systems.
