mirror of
https://gerrit.wikimedia.org/r/mediawiki/skins/Vector.git
synced 2024-09-24 10:49:25 +00:00
709772fa12
de76ab5 added the config,
`$wgVectorDefaultSkinVersionForExistingAccounts`. Its usage in
`Hooks::onUserGetDefaultOptions()` was invoked not only for existing
accounts but anonymous users _as well._ This is a bug, due to my own
misconceptions about the hook, that went against both the config's name
and its documentation.
Unfortunately, user sessions are unavailable in
`Hooks::onUserGetDefaultOptions()` so it does not seem to be possible to
determine whether the active user is an anonymous or existing account.
This patch drops the hook and centralizes all version determination
logic in SkinVersionLookup::getVersion(). SkinVersionLookup requires a
the active User object and can make the anonymous / existing account
determination by checking login state.
The issued was identified while responding to review feedback given by
@polishdeveloper / @pmiazga in
I52d80942b4270c008d4e45050589ed9220255a50.
Bug: T251415
Change-Id: I7982b4c34283ba81d0232ee6f501c44cf0a74b98
120 lines
3.9 KiB
PHP
120 lines
3.9 KiB
PHP
<?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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namespace Vector;
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use Config;
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use User;
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use WebRequest;
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/**
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* Given initial dependencies, retrieve the current skin version. This class does no parsing, just
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* the lookup.
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*
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* Skin version is evaluated in the following order:
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*
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* - useskinversion URL query parameter override. See readme.
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*
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* - User preference. The User object for new accounts is updated (persisted as a user preference)
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* by hook according to VectorDefaultSkinVersionForNewAccounts. See Hooks and skin.json. The user
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* may then change the preference at will.
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*
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* - Site configuration default. The default is controlled by VectorDefaultSkinVersion and
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* VectorDefaultSkinVersionForExistingAccounts based on login state. The former is used
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* for anonymous users and as a fallback configuration, the latter is logged in users (existing
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* accounts). See skin.json.
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*
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* @unstable
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*
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* @package Vector
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* @internal
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*/
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final class SkinVersionLookup {
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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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* This constructor accepts all dependencies needed to obtain the skin version. The dependencies
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* are lazily evaluated, not cached, meaning they always return the current results.
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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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* Whether or not the legacy skin is being used.
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*
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* @return bool
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* @throws \ConfigException
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*/
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public function isLegacy(): bool {
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return $this->getVersion() === Constants::SKIN_VERSION_LEGACY;
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}
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/**
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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 arbitrary
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* strings in the query parameter which means this function returns those strings as is.
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*
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* @return string
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* @throws \ConfigException
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*/
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public function getVersion(): string {
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// Obtain the skin version from the 1) `useskinversion` URL query parameter override, 2) the
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// user preference, 3) the configured default for logged in users, 4) or the site default.
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//
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// The latter two configurations cannot be set by `Hooks::onUserGetDefaultOptions()` as user
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// sessions are unavailable at that time so it's not possible to determine whether the
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// preference is for a logged in user or an anonymous user. Since new users are known to have
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// had their user preferences initialized in `Hooks::onLocalUserCreated()`, that means all
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// subsequent requests to `User->getOption()` that do not have a preference set are either
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// existing accounts or anonymous users. Login state makes the distinction.
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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(
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$this->user->isLoggedIn()
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? Constants::CONFIG_KEY_DEFAULT_SKIN_VERSION_FOR_EXISTING_ACCOUNTS
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: 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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}
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