includes/api/ApiUsageException.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20
  21 namespace MediaWiki\Api;
  22
  23 use ILocalizedException;
  24 use InvalidArgumentException;
  25 use MediaWiki\Status\Status;
  26 use MWException;
  27 use StatusValue;
  28 use Stringable;
  29 use Throwable;
  30 use Wikimedia\Message\MessageSpecifier;
  31
  32 /**
  33  * Exception used to abort API execution with an error
  34  *
  35  * If possible, use ApiBase::dieWithError() instead of throwing this directly.
  36  *
  37  * @newable
  38  * @ingroup API
  39  */
  40 class ApiUsageException extends MWException implements Stringable, ILocalizedException {
  41
  42         /** @var string|null */
  43         protected $modulePath;
  44         /** @var StatusValue */
  45         protected $status;
  46
  47         /**
  48          * @stable to call
  49          * @param ApiBase|null $module API module responsible for the error, if known
  50          * @param StatusValue $status Status holding errors
  51          * @param int $httpCode HTTP error code to use
  52          * @param Throwable|null $previous Previous exception
  53          */
  54         public function __construct(
  55                 ?ApiBase $module, StatusValue $status, $httpCode = 0, ?Throwable $previous = null
  56         ) {
  57                 if ( $status->isOK() ) {
  58                         throw new InvalidArgumentException( __METHOD__ . ' requires a fatal Status' );
  59                 }
  60
  61                 $this->modulePath = $module ? $module->getModulePath() : null;
  62                 $this->status = $status;
  63
  64                 // Bug T46111: Messages in the log files should be in English and not
  65                 // customized by the local wiki.
  66                 $enMsg = clone $this->getApiMessage();
  67                 $enMsg->inLanguage( 'en' )->useDatabase( false );
  68                 parent::__construct( ApiErrorFormatter::stripMarkup( $enMsg->text() ), $httpCode, $previous );
  69         }
  70
  71         /**
  72          * @param ApiBase|null $module API module responsible for the error, if known
  73          * @param string|array|MessageSpecifier $msg See ApiMessage::create()
  74          * @param string|null $code See ApiMessage::create()
  75          * @param array|null $data See ApiMessage::create()
  76          * @param int $httpCode HTTP error code to use
  77          * @param Throwable|null $previous Previous exception
  78          * @return static
  79          */
  80         public static function newWithMessage(
  81                 ?ApiBase $module, $msg, $code = null, $data = null, $httpCode = 0, ?Throwable $previous = null
  82         ) {
  83                 return new static(
  84                         $module,
  85                         StatusValue::newFatal( ApiMessage::create( $msg, $code, $data ) ),
  86                         $httpCode,
  87                         $previous
  88                 );
  89         }
  90
  91         /**
  92          * @return ApiMessage
  93          */
  94         private function getApiMessage() {
  95                 // Return the first error message, if any; or the first warning message, if any; or a generic message
  96                 foreach ( $this->status->getMessages( 'error' ) as $msg ) {
  97                         // @phan-suppress-next-line PhanTypeMismatchReturnSuperType
  98                         return ApiMessage::create( $msg );
  99                 }
 100                 foreach ( $this->status->getMessages( 'warning' ) as $msg ) {
 101                         // @phan-suppress-next-line PhanTypeMismatchReturnSuperType
 102                         return ApiMessage::create( $msg );
 103                 }
 104                 return new ApiMessage( 'apierror-unknownerror-nocode', 'unknownerror' );
 105         }
 106
 107         /**
 108          * Fetch the responsible module name
 109          * @return string|null
 110          */
 111         public function getModulePath() {
 112                 return $this->modulePath;
 113         }
 114
 115         /**
 116          * Fetch the error status
 117          * @return StatusValue
 118          */
 119         public function getStatusValue() {
 120                 return $this->status;
 121         }
 122
 123         /**
 124          * @inheritDoc
 125          */
 126         public function getMessageObject() {
 127                 return Status::wrap( $this->status )->getMessage();
 128         }
 129
 130         /**
 131          * @return string
 132          */
 133         public function __toString() {
 134                 $enMsg = clone $this->getApiMessage();
 135                 $enMsg->inLanguage( 'en' )->useDatabase( false );
 136                 $text = ApiErrorFormatter::stripMarkup( $enMsg->text() );
 137
 138                 return get_class( $this ) . ": {$enMsg->getApiCode()}: {$text} "
 139                         . "in {$this->getFile()}:{$this->getLine()}\n"
 140                         . "Stack trace:\n{$this->getTraceAsString()}"
 141                         . ( $this->getPrevious() ? "\n\nNext {$this->getPrevious()}" : "" );
 142         }
 143
 144 }
 145
 146 /** @deprecated class alias since 1.43 */
 147 class_alias( ApiUsageException::class, 'ApiUsageException' );