Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Including handling in OC_Image
But also a preview provider

Of course only works if your php actually supports webp

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

In preparation of the update of Psalm from 4.2.1 to 4.3.1+ (see https://github.com/nextcloud/server/pull/24521

)

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Update all links to https://www.php.net/



Signed-off-by: J0WI <J0WI@users.noreply.github.com>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Currently if the following situation happens

Server generates preview
Server has command removed which allows a preview to be shown
Client asks for preview, gets a 404 error when preview exists
(Mime checked before preview)

This happens more often with documents, or video as the commands are not
native PHP, they require a binary on the server.

After the fix the following would happen

Server generates preview
Server has command removed which allows a preview to be shown
Client asks for preview, gets preview which has been generated
(Mime checked after preview)

This would also allow offline generation (for example a docker image
containing the extra binaries), allowing a reduction in attack surface
of the instance serving the preview data.

Signed-off-by: Scott Dutton <scott@exussum.co.uk>

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Mount the old previews in a separate folder for the multi bucket setup and check in them before using the actual locations

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

* introduces a new IRootMountProvider to register mount points inside the root storage
* adds a AppdataPreviewObjectStoreStorage to handle the split between preview folders and bucket number

Ref #22033

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

* `php occ preview:repair` - a preview migration tool that moves existing previews into the new location introduced with #19214
* moves `appdata_INSTANCEID/previews/FILEID` to `appdata_INSTANCEID/previews/0/5/8/4/c/e/5/FILEID`
* migration tool can be stopped during migration via `CTRL+C` - it then finishes the current folder (with the previews of one file) and stops gracefully
* if a PHP memory limit is set in the `php.ini` then it will stop automatically once it has less than 25 MiB memory left (this is to avoid hard crashes in the middle of a migration)
* the tool can be used during operation - possible drawbacks:
    * there is the chance of a race condition that a new preview is generated in the moment the folder is already migrated away - so the old folder with the newly cached preview is deleted and one cached preview needs to be re-generated
    * there is the chance of a race condition during access of a preview while it is migrated to the other folder - then no preview can be shown and results in a 404 (as of now this is an accepted risk)

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Elijah Martin-Merrill <elijah@nyp-itsours.com>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Else the number of files can grow very large very quickly in the preview
folder. Esp on large systems.

This generates the md5 of the fileid. And then creates folders of the
first 7 charts. In that folder is then a folder with the fileid. And
inside there are the previews.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

To continue this formatting madness, here's a tiny patch that adds
unified formatting for control structures like if and loops as well as
classes, their methods and anonymous functions. This basically forces
the constructs to start on the same line. This is not exactly what PSR2
wants, but I think we can have a few exceptions with "our" style. The
starting of braces on the same line is pracrically standard for our
code.

This also removes and empty lines from method/function bodies at the
beginning and end.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Robin Appelman <robin@icewind.nl>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

by allowing the generation of multiple previews at once we save on having to find, open and decode the max-preview for every preview of the same file

the main use case for this is the preview generator app (pr for that comming next)

in my local testing this saves about 25% of time when using the preview generator app

Signed-off-by: Robin Appelman <robin@icewind.nl>

this saves having to do some of the overhead multiple times

Signed-off-by: Robin Appelman <robin@icewind.nl>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Fixes #17828

* Modified the preview provider to provider smaller fonts for the
  previes (so it is not so screaming)
* Modified the sidebar to show plain text and markdown files full size.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
Signed-off-by: npmbuildbot[bot] <npmbuildbot[bot]@users.noreply.github.com>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

* Order the imports
* No leading slash on imports
* Empty line before namespace
* One line per import
* Empty after imports
* Emmpty line at bottom of file

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>