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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\EditPage\Constraint;
use MediaWiki\Content\Content;
use MediaWiki\Context\IContextSource;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Html\Html;
use MediaWiki\Language\Language;
use MediaWiki\Message\Message;
use MediaWiki\Status\Status;
use MediaWiki\User\User;
use StatusValue;
/**
* Verify `EditFilterMergedContent` hook
*
* @since 1.36
* @author DannyS712
* @internal
*/
class EditFilterMergedContentHookConstraint implements IEditConstraint {
private HookRunner $hookRunner;
private Content $content;
private IContextSource $hookContext;
private string $summary;
private bool $minorEdit;
private Language $language;
private User $hookUser;
private Status $status;
private string $hookError = '';
/**
* @param HookContainer $hookContainer
* @param Content $content
* @param IContextSource $hookContext NOTE: This should only be passed to the hook.
* @param string $summary
* @param bool $minorEdit
* @param Language $language
* @param User $hookUser NOTE: This should only be passed to the hook.
*/
public function __construct(
HookContainer $hookContainer,
Content $content,
IContextSource $hookContext,
string $summary,
bool $minorEdit,
Language $language,
User $hookUser
) {
$this->hookRunner = new HookRunner( $hookContainer );
$this->content = $content;
$this->hookContext = $hookContext;
$this->summary = $summary;
$this->minorEdit = $minorEdit;
$this->language = $language;
$this->hookUser = $hookUser;
$this->status = Status::newGood();
}
public function checkConstraint(): string {
$hookResult = $this->hookRunner->onEditFilterMergedContent(
$this->hookContext,
$this->content,
$this->status,
$this->summary,
$this->hookUser,
$this->minorEdit
);
if ( !$hookResult ) {
// Error messages etc. could be handled within the hook...
if ( $this->status->isGood() ) {
$this->status->fatal( 'hookaborted' );
// Not setting $this->hookError here is a hack to allow the hook
// to cause a return to the edit page without $this->hookError
// being set. This is used by ConfirmEdit to display a captcha
// without any error message cruft.
} else {
if ( !$this->status->getMessages() ) {
// Provide a fallback error message if none was set
$this->status->fatal( 'hookaborted' );
}
$this->hookError = $this->formatStatusErrors( $this->status );
}
// Use the existing $status->value if the hook set it
if ( !$this->status->value ) {
// T273354: Should be AS_HOOK_ERROR_EXPECTED to display error message
$this->status->value = self::AS_HOOK_ERROR_EXPECTED;
}
return self::CONSTRAINT_FAILED;
}
if ( !$this->status->isOK() ) {
// ...or the hook could be expecting us to produce an error
// FIXME this sucks, we should just use the Status object throughout
if ( !$this->status->getMessages() ) {
// Provide a fallback error message if none was set
$this->status->fatal( 'hookaborted' );
}
$this->hookError = $this->formatStatusErrors( $this->status );
$this->status->value = self::AS_HOOK_ERROR_EXPECTED;
return self::CONSTRAINT_FAILED;
}
return self::CONSTRAINT_PASSED;
}
public function getLegacyStatus(): StatusValue {
// This returns a Status instead of a StatusValue since a Status object is
// used in the hook
return $this->status;
}
/**
* TODO this is really ugly. The constraint shouldn't know that the status
* will be used as wikitext, which is what the hookError represents, rather
* than just the error code. This needs a big refactor to remove the hook
* error string and just rely on the status object entirely.
*
* @internal
* @return string
*/
public function getHookError(): string {
return $this->hookError;
}
/**
* Wrap status errors in error boxes for increased visibility.
* @param Status $status
* @return string
*/
private function formatStatusErrors( Status $status ): string {
$ret = '';
foreach ( $status->getMessages() as $msg ) {
$msg = Message::newFromSpecifier( $msg );
$ret .= Html::errorBox( "\n" . $msg->inLanguage( $this->language )->plain() . "\n" );
}
return $ret;
}
}