Currently the `getPath` methods returned `NULL` in case when a file with the specified ID does not exist. This however mandates that developers are checking for the `NULL` case and if they do not the door for bugs with all kind of impact is widely opened.
This is especially harmful if used in context with Views where the final result is limited based on the result of `getPath`, if `getPath` returns `NULL` PHP type juggles this to an empty string resulting in all possible kind of bugs.
While one could argue that this is a misusage of the API the fact is that it is very often misused and an exception will trigger an immediate stop of execution as well as log this behaviour and show a pretty error page.
I also adjusted some usages where I believe that we need to catch these errors, in most cases this is though simply an error that should hard-fail.
The data from the share_external is not to much. Thus we enrich this
data with info from the filecache.
This allows endpoints using this to actually show usefull information.
The filecache might not be up to date but that is a sacrifice we need to
make in terms of speed. Else the number of remote PROPFINDS grows
lineary with the number of remote shares wich will make this endpoint
practically unusable.
* list incoming remote shares at 'remote_shares'
* get per share info at 'remote_shares/<ID>'
* delete remote share with a DELETE to 'remote_shares/<ID>'
Since this extends the API we now properly parse the date. We only
accept valid ISO 8601 Dates (YYYY-MM-DD).
Currently this only works for link shares (it is just ignored for other
shares). Since we do not have user/group/federated expiring shares yet.
* Tests added
To ensure that pagination is working properly we need to make sure the
shares are always in the same order.
Sorting is first done by label (catches most instances)
If there is a user and a group with the same label we sort by shareType
If there are multiple users with the same label we sort those by
shareWith
Some private static functions in the OCS Share API
(files_sharing/api/local.php) take a params array with all the info
inside. This is bad for the limited type checking and is not clear.
