SpecialMovepage.php

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<?php
require_once( "LinksUpdate.php" );

function wfSpecialMovepage()
{
        global $wgUser, $wgOut, $wgRequest, $action;

        if ( 0 == $wgUser->getID() or $wgUser->isBlocked() ) {
                $wgOut->errorpage( "movenologin", "movenologintext" );
                return;
        }
        if ( wfReadOnly() ) {
                $wgOut->readOnlyPage();
                return;
        }

        $f = new MovePageForm();

        if ( "success" == $action ) { $f->showSuccess(); }
        else if ( "submit" == $action && $wgRequest->wasPosted() ) { $f->doSubmit(); }
        else { $f->showForm( "" ); }
}

class MovePageForm {
        var $oldTitle, $newTitle; # Text input
                
        function MovePageForm() {
                global $wgRequest;
                $this->oldTitle = $wgRequest->getText( 'wpOldTitle', $wgRequest->getVal( 'target' ) );
                $this->newTitle = $wgRequest->getText( 'wpNewTitle' );
        }
        
        function showForm( $err )
        {
                global $wgOut, $wgUser, $wgLang;

                $wgOut->setPagetitle( wfMsg( "movepage" ) );

                if ( empty( $this->oldTitle ) ) {
                        $wgOut->errorpage( "notargettitle", "notargettext" );
                        return;
                }
                
                $encOldTitle = htmlspecialchars( $this->oldTitle );
                $encNewTitle = htmlspecialchars( $this->newTitle );
                $ot = Title::newFromURL( $this->oldTitle );
                $ott = $ot->getPrefixedText();

                $wgOut->addWikiText( wfMsg( "movepagetext" ) );
                if ( ! Namespace::isTalk( $ot->getNamespace() ) ) {
                        $wgOut->addWikiText( wfMsg( "movepagetalktext" ) );
                }

                $ma = wfMsg( "movearticle" );
                $newt = wfMsg( "newtitle" );
                $mpb = wfMsg( "movepagebtn" );
                $movetalk = wfMsg( "movetalk" );

                $titleObj = Title::makeTitle( NS_SPECIAL, "Movepage" );
                $action = $titleObj->escapeLocalURL( "action=submit" );

                if ( "" != $err ) {
                        $wgOut->setSubtitle( wfMsg( "formerror" ) );
                        $wgOut->addHTML( "<p class='error'>{$err}</p>\n" );
                }
                $wgOut->addHTML( "
<form id=\"movepage\" method=\"post\" action=\"{$action}\">
        <table border='0'>
                <tr>
                        <td align='right'>{$ma}:</td>
                        <td align='left'><strong>{$ott}</strong></td>
                </tr>
                <tr>
                        <td align='right'>{$newt}:</td>
                        <td align='left'>
                                <input type='text' size='40' name=\"wpNewTitle\" value=\"{$encNewTitle}\" />
                                <input type='hidden' name=\"wpOldTitle\" value=\"{$encOldTitle}\" />
                        </td>
                </tr>" );

                if ( ! Namespace::isTalk( $ot->getNamespace() ) ) {
                        $wgOut->addHTML( "
                <tr>
                        <td align='right'>
                                <input type='checkbox' name=\"wpMovetalk\" checked='checked' value=\"1\" />
                        </td>
                        <td>{$movetalk}</td>
                </tr>" );
                }
                $wgOut->addHTML( "
                <tr>
                        <td>&nbsp;</td>
                        <td align='left'>
                                <input type='submit' name=\"wpMove\" value=\"{$mpb}\" />
                        </td>
                </tr>
        </table>
</form>\n" );

        }

        function doSubmit()
        {
                global $wgOut, $wgUser, $wgLang;
                global $wgDeferredUpdateList, $wgMessageCache;
                global  $wgUseSquid;
                $fname = "MovePageForm::doSubmit";

                $ot = Title::newFromText( $this->oldTitle );
                $nt = Title::newFromText( $this->newTitle );

                $error = $ot->moveTo( $nt );
                if ( $error !== true ) {
                        $this->showForm( wfMsg( $error ) );
                        return;
                }
                
                # Move talk page if
                # (1) the checkbox says to,
                # (2) the namespaces are not themselves talk namespaces, and of course
                # (3) it exists.

                $ons = $ot->getNamespace();
                $nns = $nt->getNamespace();
                
                if ( ( 1 == $_REQUEST['wpMovetalk'] ) &&
                     ( ! Namespace::isTalk( $ons ) ) &&
                     ( ! Namespace::isTalk( $nns ) ) ) {
                        
                        # get old talk page namespace
                        $ons = Namespace::getTalk( $ons );
                        # get new talk page namespace
                        $nns = Namespace::getTalk( $nns );
                        
                        # make talk page title objects
                        $ott = Title::makeTitle( $ons, $ot->getDBkey() );
                        $ntt = Title::makeTitle( $nns, $nt->getDBkey() );

                        # Attempt the move
                        $error = $ott->moveTo( $ntt );
                        if ( $error === true ) {
                                $talkmoved = 1;
                        } else {
                                $talkmoved = $error;
                        }
                }
                
                $titleObj = Title::makeTitle( NS_SPECIAL, "Movepage" );
                $success = $titleObj->getFullURL( 
                  "action=success&oldtitle=" . wfUrlencode( $ot->getPrefixedText() ) .
                  "&newtitle=" . wfUrlencode( $nt->getPrefixedText() ) .
                  "&talkmoved={$talkmoved}" );

                $wgOut->redirect( $success );
        }

        function showSuccess()
        {
                global $wgOut, $wgUser;

                $wgOut->setPagetitle( wfMsg( "movepage" ) );
                $wgOut->setSubtitle( wfMsg( "pagemovedsub" ) );
        
                $text = wfMsg( "pagemovedtext", $_REQUEST['oldtitle'], $_REQUEST['newtitle'] );
                $wgOut->addWikiText( $text );

                $talkmoved = $_REQUEST['talkmoved'];
                if ( 1 == $talkmoved ) {
                        $wgOut->addHTML( "\n<p>" . wfMsg( "talkpagemoved" ) . "</p>\n" );
                } elseif( 'articleexists' == $talkmoved ) {
                        $wgOut->addHTML( "\n<p><strong>" . wfMsg( "talkexists" ) . "</strong></p>\n" );
                } else {
                        $ot = Title::newFromURL( $_REQUEST['oldtitle'] );
                        if ( ! Namespace::isTalk( $ot->getNamespace() ) ) {
                                $wgOut->addHTML( "\n<p>" . wfMsg( "talkpagenotmoved", wfMsg( $talkmoved ) ) . "</p>\n" );
                        }
                }
        }
}
?>

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