create UI\MediaRevisions class

Create new Ui\MediaRevisions class created by copying from Ui\Revisons and customize its methods to use media only (methods args are changed).
Replace deprecated html_

create UI\MediaRevisions class

Create new Ui\MediaRevisions class created by copying from Ui\Revisons and customize its methods to use media only (methods args are changed).
Replace deprecated html_revisions() with Ui\MediaRevisions->show() method.

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translation update

usermanager CLI: more cleanup

usermanager CLI: use success messages

This makes it more consistent with the other tools

usermanager CLI: fix parameter order for creating users

usermanager CLI: catch plugin signalled error messages

Plugins may prevent user modifications and will use msg() to tell why.
This will catch the messages and print them on CLI as well

abort early when no auth backend is available

type hints and cleanup

stricter user check in AbstractUserAction

set proper revinfo when media meta file is not available

MediaChangelog::getRevision() may return false when media changes meta file is missing, cause error unsupported operand types.

avoid running tests twice for pull requests

This implements the suggested method from [1]. It runs tests on all pushes to
our own repository and for pull requests coming from other people's forks.

avoid running tests twice for pull requests

This implements the suggested method from [1]. It runs tests on all pushes to
our own repository and for pull requests coming from other people's forks.

[1] https://github.community/t/how-to-trigger-an-action-on-push-or-pull-request-but-not-both/16662/10

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Replace Appveyor and Travis with Github actions

Travis has recently introduced built limits which makes using them very
slow sometimes and I never really liked the setup for appveyor for our
Windows

Replace Appveyor and Travis with Github actions

Travis has recently introduced built limits which makes using them very
slow sometimes and I never really liked the setup for appveyor for our
Windows testing.

This makes use of github actions instead. Some notes:

* since we only support PHP 7.2+ anymore, nothing below is tested
* MySQL and Postgres auth backends are only tested on Linux (as before)
* I am not actually sure the problem matchers are working as intended
* There is currently no good way to run tests that are allowed to fail
so no PHP 8 tests are run yet
* I haven't reestablished the no-gzip test runs again, I'm not sure they
are still relevant on modern PHP systems
* PHP 7.4 currently fails because of https://github.com/MarcusSchwarz/lesserphp/pull/18
* I'm currently using @v2 tags for the used action. We had a discussion
before if we should actually pin the action to a fixed commit. For
sake of easier maintainance, I would argue to trust the setup-php
action.

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monkeypatch lesserphp

This applies https://github.com/MarcusSchwarz/lesserphp/pull/19 manually
to the vendor directory.

It seems lesserphp is abandoned and we will need to find a proper
solution. P

monkeypatch lesserphp

This applies https://github.com/MarcusSchwarz/lesserphp/pull/19 manually
to the vendor directory.

It seems lesserphp is abandoned and we will need to find a proper
solution. Probably by maintaining our own fork. For now this should fix
PHP 7.4 tests.

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Allow revert action for logged in users only

This should prevent accidental reverts by bots on open wikis

SVG based smileys

This patch replaces our old gif based smileys by SVG based ones from the
Twemoji project. This allows for scaling the emojis with the text
they're used in.

work around disabled php_strip_whitespace. fixes #3271

scrutinizer fix

Media CSP: omit script-src and add frame-ancestors

See comments for details:

https://github.com/splitbrain/dokuwiki/pull/3310#discussion_r506909727
https://github.com/splitbrain/dokuwiki/pull/3310#

Media CSP: omit script-src and add frame-ancestors

See comments for details:

https://github.com/splitbrain/dokuwiki/pull/3310#discussion_r506909727
https://github.com/splitbrain/dokuwiki/pull/3310#discussion_r506913304

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mime.conf: add SVG image mime type

This allows uploading and serving SVG images.

translation update

update wiki:syntax with usage doc

translation update

translation update

Fix groups match in auth_ismanager and auth_isadmin

Even if a user was passed to the check but no groups, current user's groups were used for the match

Remove strings and files not yet translated