getText.php

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<?php
require_once( __DIR__ . '/Maintenance.php' );

class GetTextMaint extends Maintenance {
        public function __construct() {
                parent::__construct();
                $this->mDescription = 'Outputs page text to stdout';
                $this->addOption( 'show-private', 'Show the text even if it\'s not available to the public' );
                $this->addArg( 'title', 'Page title' );
        }

        public function execute() {
                $this->db = wfGetDB( DB_SLAVE );

                $titleText = $this->getArg( 0 );
                $title = Title::newFromText( $titleText );
                if ( !$title ) {
                        $this->error( "$titleText is not a valid title.\n", true );
                }

                $rev = Revision::newFromTitle( $title );
                if ( !$rev ) {
                        $titleText = $title->getPrefixedText();
                        $this->error( "Page $titleText does not exist.\n", true );
                }
                $text = $rev->getText( $this->hasOption( 'show-private' ) ? Revision::RAW : Revision::FOR_PUBLIC );
                if ( $text === false ) {
                        $titleText = $title->getPrefixedText();
                        $this->error( "Couldn't extract the text from $titleText.\n", true );
                }
                $this->output( $text );
        }
}

$maintClass = "GetTextMaint";
require_once( RUN_MAINTENANCE_IF_MAIN );