2020-03-31 22:34:50 +00:00
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<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @since 1.35
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*/
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2020-04-20 16:38:01 +00:00
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namespace Vector\FeatureManagement\Requirements;
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2020-03-31 22:34:50 +00:00
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use Config;
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use User;
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2020-04-20 16:38:01 +00:00
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use Vector\Constants;
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use Vector\FeatureManagement\Requirement;
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2020-03-31 22:34:50 +00:00
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use WebRequest;
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/**
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2020-04-20 16:38:01 +00:00
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* Retrieve the skin version for the request and compare it with `Constants::SKIN_VERSION_LATEST`.
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* This requirement is met if the two are equal.
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2020-03-31 22:34:50 +00:00
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*
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* Skin version is evaluated in the following order:
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*
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2020-04-20 16:38:01 +00:00
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* - `useskinversion` URL query parameter override. See `README.md`.
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2020-03-31 22:34:50 +00:00
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*
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2020-04-20 16:38:01 +00:00
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* - User preference. The `User` object for new and existing accounts are updated by hook according
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* to the `VectorDefaultSkinVersionForNewAccounts` and
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* `VectorDefaultSkinVersionForExistingAccounts` config values. See the `Vector\Hooks` class and
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* `skin.json`.
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2020-03-31 22:34:50 +00:00
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*
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2020-04-20 16:38:01 +00:00
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* If the skin version is evaluated prior to `User` preference hook invocations, an incorrect
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2020-03-31 22:34:50 +00:00
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* version may be returned as only query parameter and site configuration will be known.
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*
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2020-04-20 16:38:01 +00:00
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* - Site configuration default. The default is controlled by the `VectorDefaultSkinVersion` config
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* value. This is used for anonymous users and as a fallback configuration. See `skin.json`.
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*
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* This majority of this class is taken from Stephen Niedzielski's `Vector\SkinVersionLookup` class,
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* which was introduced in `d1072d0fdfb1`.
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2020-03-31 22:34:50 +00:00
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*
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* @unstable
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*
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2020-04-20 16:38:01 +00:00
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* @package Vector\FeatureManagement\Requirements
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2020-03-31 22:34:50 +00:00
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* @internal
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*/
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2020-04-20 16:38:01 +00:00
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final class LatestSkinVersionRequirement implements Requirement {
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2020-03-31 22:34:50 +00:00
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/**
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* @var WebRequest
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*/
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private $request;
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/**
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* @var User
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*/
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private $user;
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/**
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* @var Config
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*/
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private $config;
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/**
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2020-04-20 16:38:01 +00:00
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* This constructor accepts all dependencies needed to obtain the skin version.
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2020-03-31 22:34:50 +00:00
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*
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* @param WebRequest $request
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* @param User $user
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* @param Config $config
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*/
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public function __construct( WebRequest $request, User $user, Config $config ) {
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$this->request = $request;
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$this->user = $user;
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$this->config = $config;
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}
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/**
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2020-04-20 16:38:01 +00:00
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* @inheritDoc
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*/
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public function getName() : string {
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return Constants::REQUIREMENT_LATEST_SKIN_VERSION;
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}
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/**
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* @inheritDoc
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2020-03-31 22:34:50 +00:00
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* @throws \ConfigException
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*/
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2020-04-20 16:38:01 +00:00
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public function isMet() : bool {
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return $this->getVersion() === Constants::SKIN_VERSION_LATEST;
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2020-03-31 22:34:50 +00:00
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}
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/**
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2020-04-20 16:38:01 +00:00
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* The skin version as a string. E.g., `Constants::SKIN_VERSION_LATEST`,
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* `Constants::SKIN_VERSION_LATEST`, or maybe 'beta'. Note: it's likely someone will put
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* arbitrary strings in the query parameter which means this function returns those strings as
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* is.
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2020-03-31 22:34:50 +00:00
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*
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* @return string
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* @throws \ConfigException
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*/
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2020-04-20 16:38:01 +00:00
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private function getVersion() : string {
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// Obtain the skin version from the `useskinversion` URL query parameter override, the user
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// preference, or the configured default.
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return (string)$this->request->getVal(
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Constants::QUERY_PARAM_SKIN_VERSION,
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$this->user->getOption(
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Constants::PREF_KEY_SKIN_VERSION,
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$this->config->get( Constants::CONFIG_KEY_DEFAULT_SKIN_VERSION )
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)
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);
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}
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}
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