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eval.php
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eval.php
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<?php
/**
* This script lets a command-line user start up the wiki engine and then poke
* about by issuing PHP commands directly.
*
* Unlike eg Python, you need to use a 'return' statement explicitly for the
* interactive shell to print out the value of the expression. Multiple lines
* are evaluated separately, so blocks need to be input without a line break.
* Fatal errors such as use of undeclared functions can kill the shell.
*
* To get decent line editing behavior, you should compile PHP with support
* for GNU readline (pass --with-readline to configure).
*
* 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
* @ingroup Maintenance
*/
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Logger\ConsoleSpi;
use MediaWiki\Logger\LoggerFactory;
use MediaWiki\MediaWikiServices;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
/**
* Maintenance script providing an interactive console for evaluating php commands
* in the context of an initialized MediaWiki instance.
*
* @ingroup Maintenance
*/
// phpcs:disable MediaWiki.Files.ClassMatchesFilename.NotMatch
class MWEval extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription(
'Maintenance script providing an interactive console for evaluating php' .
'commands in the context of an initialized MediaWiki instance.'
);
$this->addOption(
'd',
'Enable (some) debug output',
false,
true
);
$this->addOption(
'ignore-errors',
'Ignore (some) errors'
);
}
public function canExecuteWithoutLocalSettings(): bool {
return true;
}
public function execute() {
if ( $this->hasOption( 'd' ) ) {
$d = $this->getOption( 'd' );
if ( $d > 0 ) {
LoggerFactory::registerProvider( new ConsoleSpi );
// Some services hold Logger instances in object properties
MediaWikiServices::resetGlobalInstance();
}
if ( $d > 1 ) {
$this->getServiceContainer()->getConnectionProvider()->getPrimaryDatabase()->setFlag( DBO_DEBUG );
$this->getServiceContainer()->getConnectionProvider()->getReplicaDatabase()->setFlag( DBO_DEBUG );
}
}
// pull all globals into local scope
foreach ( $GLOBALS as $name => $unused ) {
// phpcs:disable MediaWiki.NamingConventions.ValidGlobalName.allowedPrefix
// phpcs:disable MediaWiki.VariableAnalysis.UnusedGlobalVariables.UnusedGlobal$name
global $$name;
}
$__ignoreErrors = $this->hasOption( 'ignore-errors' );
$__useReadline = function_exists( 'readline_add_history' )
&& Maintenance::posix_isatty( 0 /*STDIN*/ );
if ( $__useReadline ) {
$home = getenv( 'HOME' );
$__historyFile = $home ?
"$home/.mweval_history" : ( MW_INSTALL_PATH . "/maintenance/.mweval_history" );
readline_read_history( $__historyFile );
} else {
$__historyFile = null;
}
( new HookRunner( $this->getServiceContainer()->getHookContainer() ) )->onMaintenanceShellStart();
$__e = null; // PHP exception
// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
while ( ( $__line = Maintenance::readconsole() ) !== false ) {
if ( !$__ignoreErrors && $__e && !preg_match( '/^(exit|die);?$/', $__line ) ) {
// Internal state may be corrupted or fatals may occur later due
// to some object not being set. Don't drop out of eval in case
// lines were being pasted in (which would then get dumped to the shell).
// Instead, just absorb the remaining commands. Let "exit" through per DWIM.
echo "Exception was thrown before; please restart eval.php\n";
continue;
}
if ( $__useReadline ) {
readline_add_history( $__line );
// @phan-suppress-next-line PhanTypeMismatchArgumentNullableInternal
readline_write_history( $__historyFile );
}
try {
// @phan-suppress-next-next-line SecurityCheck-RCE
// phpcs:ignore MediaWiki.Usage.ForbiddenFunctions.eval
$__val = eval( $__line . ";" );
} catch ( Exception $__e ) {
fwrite( STDERR, "Caught exception " . get_class( $__e ) .
": {$__e->getMessage()}\n" . $__e->getTraceAsString() . "\n" );
continue;
} catch ( Throwable $__e ) {
if ( $__ignoreErrors ) {
fwrite( STDERR, "Caught " . get_class( $__e ) .
": {$__e->getMessage()}\n" . $__e->getTraceAsString() . "\n" );
continue;
} else {
throw $__e;
}
}
if ( $__val === null ) {
echo "\n";
} elseif ( is_string( $__val ) || is_numeric( $__val ) ) {
echo "$__val\n";
} else {
var_dump( $__val );
}
}
echo "\n";
}
}
// @codeCoverageIgnoreStart
$maintClass = MWEval::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd

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text/x-php
Expires
Wed, Sep 10, 15:16 (16 h, 55 m)
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54/ea/0eb09bb846380c445eb77d93b668
Default Alt Text
eval.php (5 KB)

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