Merge "Add language handling to imageinfo/extmetadata API"

[mediawiki.git] / includes / specials / SpecialProtectedpages.php

<?php
/**
 * Implements Special:Protectedpages
 *
 * 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 SpecialPage
 */

/**
 * A special page that lists protected pages
 *
 * @ingroup SpecialPage
 */
class SpecialProtectedpages extends SpecialPage {

        protected $IdLevel = 'level';
        protected $IdType = 'type';

        public function __construct() {
                parent::__construct( 'Protectedpages' );
        }

        public function execute( $par ) {
                $this->setHeaders();
                $this->outputHeader();

                // Purge expired entries on one in every 10 queries
                if ( !mt_rand( 0, 10 ) ) {
                        Title::purgeExpiredRestrictions();
                }

                $request = $this->getRequest();
                $type = $request->getVal( $this->IdType );
                $level = $request->getVal( $this->IdLevel );
                $sizetype = $request->getVal( 'sizetype' );
                $size = $request->getIntOrNull( 'size' );
                $ns = $request->getIntOrNull( 'namespace' );
                $indefOnly = $request->getBool( 'indefonly' ) ? 1 : 0;
                $cascadeOnly = $request->getBool( 'cascadeonly' ) ? 1 : 0;

                $pager = new ProtectedPagesPager(
                        $this,
                        array(),
                        $type,
                        $level,
                        $ns,
                        $sizetype,
                        $size,
                        $indefOnly,
                        $cascadeOnly
                );

                $this->getOutput()->addHTML( $this->showOptions(
                        $ns,
                        $type,
                        $level,
                        $sizetype,
                        $size,
                        $indefOnly,
                        $cascadeOnly
                ) );

                if ( $pager->getNumRows() ) {
                        $this->getOutput()->addHTML(
                                $pager->getNavigationBar() .
                                        '<ul>' . $pager->getBody() . '</ul>' .
                                        $pager->getNavigationBar()
                        );
                } else {
                        $this->getOutput()->addWikiMsg( 'protectedpagesempty' );
                }
        }

        /**
         * Callback function to output a restriction
         * @param Title $row Protected title
         * @return string Formatted "<li>" element
         */
        public function formatRow( $row ) {
                wfProfileIn( __METHOD__ );

                static $infinity = null;

                if ( is_null( $infinity ) ) {
                        $infinity = wfGetDB( DB_SLAVE )->getInfinity();
                }

                $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
                if ( !$title ) {
                        wfProfileOut( __METHOD__ );

                        return Html::rawElement(
                                'li',
                                array(),
                                Html::element(
                                        'span',
                                        array( 'class' => 'mw-invalidtitle' ),
                                        Linker::getInvalidTitleDescription(
                                                $this->getContext(),
                                                $row->page_namespace,
                                                $row->page_title
                                        )
                                )
                        ) . "\n";
                }

                $link = Linker::link( $title );

                $description_items = array();

                // Messages: restriction-level-sysop, restriction-level-autoconfirmed
                $protType = $this->msg( 'restriction-level-' . $row->pr_level )->escaped();

                $description_items[] = $protType;

                if ( $row->pr_cascade ) {
                        $description_items[] = $this->msg( 'protect-summary-cascade' )->text();
                }

                $stxt = '';
                $lang = $this->getLanguage();

                $expiry = $lang->formatExpiry( $row->pr_expiry, TS_MW );
                if ( $expiry != $infinity ) {
                        $user = $this->getUser();
                        $description_items[] = $this->msg(
                                'protect-expiring-local',
                                $lang->userTimeAndDate( $expiry, $user ),
                                $lang->userDate( $expiry, $user ),
                                $lang->userTime( $expiry, $user )
                        )->escaped();
                }

                if ( !is_null( $size = $row->page_len ) ) {
                        $stxt = $lang->getDirMark() . ' ' . Linker::formatRevisionSize( $size );
                }

                // Show a link to the change protection form for allowed users otherwise
                // a link to the protection log
                if ( $this->getUser()->isAllowed( 'protect' ) ) {
                        $changeProtection = Linker::linkKnown(
                                $title,
                                $this->msg( 'protect_change' )->escaped(),
                                array(),
                                array( 'action' => 'unprotect' )
                        );
                } else {
                        $ltitle = SpecialPage::getTitleFor( 'Log' );
                        $changeProtection = Linker::linkKnown(
                                $ltitle,
                                $this->msg( 'protectlogpage' )->escaped(),
                                array(),
                                array(
                                        'type' => 'protect',
                                        'page' => $title->getPrefixedText()
                                )
                        );
                }

                $changeProtection = ' ' . $this->msg( 'parentheses' )->rawParams( $changeProtection )
                        ->escaped();

                wfProfileOut( __METHOD__ );

                return Html::rawElement(
                        'li',
                        array(),
                        $lang->specialList( $link . $stxt, $lang->commaList( $description_items ), false ) .
                                $changeProtection
                ) . "\n";
        }

        /**
         * @param $namespace Integer
         * @param string $type restriction type
         * @param string $level restriction level
         * @param string $sizetype "min" or "max"
         * @param $size Integer
         * @param $indefOnly Boolean: only indefinie protection
         * @param $cascadeOnly Boolean: only cascading protection
         * @return String: input form
         */
        protected function showOptions( $namespace, $type = 'edit', $level, $sizetype,
                $size, $indefOnly, $cascadeOnly
        ) {
                global $wgScript;

                $title = $this->getTitle();

                return Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) ) .
                        Xml::openElement( 'fieldset' ) .
                        Xml::element( 'legend', array(), $this->msg( 'protectedpages' )->text() ) .
                        Html::hidden( 'title', $title->getPrefixedDBkey() ) . "\n" .
                        $this->getNamespaceMenu( $namespace ) . "&#160;\n" .
                        $this->getTypeMenu( $type ) . "&#160;\n" .
                        $this->getLevelMenu( $level ) . "&#160;\n" .
                        "<br /><span style='white-space: nowrap'>" .
                        $this->getExpiryCheck( $indefOnly ) . "&#160;\n" .
                        $this->getCascadeCheck( $cascadeOnly ) . "&#160;\n" .
                        "</span><br /><span style='white-space: nowrap'>" .
                        $this->getSizeLimit( $sizetype, $size ) . "&#160;\n" .
                        "</span>" .
                        "&#160;" . Xml::submitButton( $this->msg( 'allpagessubmit' )->text() ) . "\n" .
                        Xml::closeElement( 'fieldset' ) .
                        Xml::closeElement( 'form' );
        }

        /**
         * Prepare the namespace filter drop-down; standard namespace
         * selector, sans the MediaWiki namespace
         *
         * @param $namespace Mixed: pre-select namespace
         * @return String
         */
        protected function getNamespaceMenu( $namespace = null ) {
                return Html::rawElement( 'span', array( 'style' => 'white-space: nowrap;' ),
                        Html::namespaceSelector(
                                array(
                                        'selected' => $namespace,
                                        'all' => '',
                                        'label' => $this->msg( 'namespace' )->text()
                                ), array(
                                        'name' => 'namespace',
                                        'id' => 'namespace',
                                        'class' => 'namespaceselector',
                                )
                        )
                );
        }

        /**
         * @param bool $indefOnly
         * @return string Formatted HTML
         */
        protected function getExpiryCheck( $indefOnly ) {
                return Xml::checkLabel(
                        $this->msg( 'protectedpages-indef' )->text(),
                        'indefonly',
                        'indefonly',
                        $indefOnly
                ) . "\n";
        }

        /**
         * @param bool $cascadeOnly
         * @return string Formatted HTML
         */
        protected function getCascadeCheck( $cascadeOnly ) {
                return Xml::checkLabel(
                        $this->msg( 'protectedpages-cascade' )->text(),
                        'cascadeonly',
                        'cascadeonly',
                        $cascadeOnly
                ) . "\n";
        }

        /**
         * @param string $sizetype "min" or "max"
         * @param mixed $size
         * @return string Formatted HTML
         */
        protected function getSizeLimit( $sizetype, $size ) {
                $max = $sizetype === 'max';

                return Xml::radioLabel(
                        $this->msg( 'minimum-size' )->text(),
                        'sizetype',
                        'min',
                        'wpmin',
                        !$max
                ) .
                        '&#160;' .
                        Xml::radioLabel(
                                $this->msg( 'maximum-size' )->text(),
                                'sizetype',
                                'max',
                                'wpmax',
                                $max
                        ) .
                        '&#160;' .
                        Xml::input( 'size', 9, $size, array( 'id' => 'wpsize' ) ) .
                        '&#160;' .
                        Xml::label( $this->msg( 'pagesize' )->text(), 'wpsize' );
        }

        /**
         * Creates the input label of the restriction type
         * @param $pr_type string Protection type
         * @return string Formatted HTML
         */
        protected function getTypeMenu( $pr_type ) {
                $m = array(); // Temporary array
                $options = array();

                // First pass to load the log names
                foreach ( Title::getFilteredRestrictionTypes( true ) as $type ) {
                        // Messages: restriction-edit, restriction-move, restriction-create, restriction-upload
                        $text = $this->msg( "restriction-$type" )->text();
                        $m[$text] = $type;
                }

                // Third pass generates sorted XHTML content
                foreach ( $m as $text => $type ) {
                        $selected = ( $type == $pr_type );
                        $options[] = Xml::option( $text, $type, $selected ) . "\n";
                }

                return "<span style='white-space: nowrap'>" .
                        Xml::label( $this->msg( 'restriction-type' )->text(), $this->IdType ) . '&#160;' .
                        Xml::tags( 'select',
                                array( 'id' => $this->IdType, 'name' => $this->IdType ),
                                implode( "\n", $options ) ) . "</span>";
        }

        /**
         * Creates the input label of the restriction level
         * @param $pr_level string Protection level
         * @return string Formatted HTML
         */
        protected function getLevelMenu( $pr_level ) {
                global $wgRestrictionLevels;

                // Temporary array
                $m = array( $this->msg( 'restriction-level-all' )->text() => 0 );
                $options = array();

                // First pass to load the log names
                foreach ( $wgRestrictionLevels as $type ) {
                        // Messages used can be 'restriction-level-sysop' and 'restriction-level-autoconfirmed'
                        if ( $type != '' && $type != '*' ) {
                                $text = $this->msg( "restriction-level-$type" )->text();
                                $m[$text] = $type;
                        }
                }

                // Third pass generates sorted XHTML content
                foreach ( $m as $text => $type ) {
                        $selected = ( $type == $pr_level );
                        $options[] = Xml::option( $text, $type, $selected );
                }

                return "<span style='white-space: nowrap'>" .
                        Xml::label( $this->msg( 'restriction-level' )->text(), $this->IdLevel ) . ' ' .
                        Xml::tags( 'select',
                                array( 'id' => $this->IdLevel, 'name' => $this->IdLevel ),
                                implode( "\n", $options ) ) . "</span>";
        }

        protected function getGroupName() {
                return 'maintenance';
        }
}

/**
 * @todo document
 * @ingroup Pager
 */
class ProtectedPagesPager extends AlphabeticPager {
        public $mForm, $mConds;
        private $type, $level, $namespace, $sizetype, $size, $indefonly;

        function __construct( $form, $conds = array(), $type, $level, $namespace,
                $sizetype = '', $size = 0, $indefonly = false, $cascadeonly = false
        ) {
                $this->mForm = $form;
                $this->mConds = $conds;
                $this->type = ( $type ) ? $type : 'edit';
                $this->level = $level;
                $this->namespace = $namespace;
                $this->sizetype = $sizetype;
                $this->size = intval( $size );
                $this->indefonly = (bool)$indefonly;
                $this->cascadeonly = (bool)$cascadeonly;
                parent::__construct( $form->getContext() );
        }

        function getStartBody() {
                # Do a link batch query
                $lb = new LinkBatch;
                foreach ( $this->mResult as $row ) {
                        $lb->add( $row->page_namespace, $row->page_title );
                }
                $lb->execute();

                return '';
        }

        function formatRow( $row ) {
                return $this->mForm->formatRow( $row );
        }

        function getQueryInfo() {
                $conds = $this->mConds;
                $conds[] = '(pr_expiry>' . $this->mDb->addQuotes( $this->mDb->timestamp() ) .
                        'OR pr_expiry IS NULL)';
                $conds[] = 'page_id=pr_page';
                $conds[] = 'pr_type=' . $this->mDb->addQuotes( $this->type );

                if ( $this->sizetype == 'min' ) {
                        $conds[] = 'page_len>=' . $this->size;
                } elseif ( $this->sizetype == 'max' ) {
                        $conds[] = 'page_len<=' . $this->size;
                }

                if ( $this->indefonly ) {
                        $infinity = $this->mDb->addQuotes( $this->mDb->getInfinity() );
                        $conds[] = "pr_expiry = $infinity OR pr_expiry IS NULL";
                }
                if ( $this->cascadeonly ) {
                        $conds[] = 'pr_cascade = 1';
                }

                if ( $this->level ) {
                        $conds[] = 'pr_level=' . $this->mDb->addQuotes( $this->level );
                }
                if ( !is_null( $this->namespace ) ) {
                        $conds[] = 'page_namespace=' . $this->mDb->addQuotes( $this->namespace );
                }

                return array(
                        'tables' => array( 'page_restrictions', 'page' ),
                        'fields' => array( 'pr_id', 'page_namespace', 'page_title', 'page_len',
                                'pr_type', 'pr_level', 'pr_expiry', 'pr_cascade' ),
                        'conds' => $conds
                );
        }

        function getIndexField() {
                return 'pr_id';
        }
}