]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/ProtectionForm.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / ProtectionForm.php
index 2d95d80195a2eca1ac2bbf2547034449e616d3ab..53608e849a39eb720f3c155c09ca4682f81b73e8 100644 (file)
@@ -3,7 +3,7 @@
  * Page protection
  *
  * Copyright © 2005 Brion Vibber <brion@pobox.com>
- * http://www.mediawiki.org/
+ * https://www.mediawiki.org/
  *
  * 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
  *
  * @file
  */
+use MediaWiki\MediaWikiServices;
 
 /**
  * Handles the page protection UI and backend
  */
 class ProtectionForm {
-       /** A map of action to restriction level, from request or default */
-       var $mRestrictions = array();
+       /** @var array A map of action to restriction level, from request or default */
+       protected $mRestrictions = [];
 
-       /** The custom/additional protection reason */
-       var $mReason = '';
+       /** @var string The custom/additional protection reason */
+       protected $mReason = '';
 
-       /** The reason selected from the list, blank for other/additional */
-       var $mReasonSelection = '';
+       /** @var string The reason selected from the list, blank for other/additional */
+       protected $mReasonSelection = '';
 
-       /** True if the restrictions are cascading, from request or existing protection */
-       var $mCascade = false;
+       /** @var bool True if the restrictions are cascading, from request or existing protection */
+       protected $mCascade = false;
 
-       /** Map of action to "other" expiry time. Used in preference to mExpirySelection. */
-       var $mExpiry = array();
+       /** @var array Map of action to "other" expiry time. Used in preference to mExpirySelection. */
+       protected $mExpiry = [];
 
        /**
-        * Map of action to value selected in expiry drop-down list.
+        * @var array Map of action to value selected in expiry drop-down list.
         * Will be set to 'othertime' whenever mExpiry is set.
         */
-       var $mExpirySelection = array();
+       protected $mExpirySelection = [];
 
-       /** Permissions errors for the protect action */
-       var $mPermErrors = array();
+       /** @var array Permissions errors for the protect action */
+       protected $mPermErrors = [];
 
-       /** Types (i.e. actions) for which levels can be selected */
-       var $mApplicableTypes = array();
+       /** @var array Types (i.e. actions) for which levels can be selected */
+       protected $mApplicableTypes = [];
 
-       /** Map of action to the expiry time of the existing protection */
-       var $mExistingExpiry = array();
+       /** @var array Map of action to the expiry time of the existing protection */
+       protected $mExistingExpiry = [];
+
+       /** @var IContextSource */
+       private $mContext;
 
        function __construct( Article $article ) {
-               global $wgUser;
                // Set instance variables.
                $this->mArticle = $article;
-               $this->mTitle = $article->mTitle;
+               $this->mTitle = $article->getTitle();
                $this->mApplicableTypes = $this->mTitle->getRestrictionTypes();
-               
+               $this->mContext = $article->getContext();
+
                // Check if the form should be disabled.
                // If it is, the form will be available in read-only to show levels.
-               $this->mPermErrors = $this->mTitle->getUserPermissionsErrors('protect',$wgUser);
-               $this->disabled = wfReadOnly() || $this->mPermErrors != array();
+               $this->mPermErrors = $this->mTitle->getUserPermissionsErrors(
+                       'protect',
+                       $this->mContext->getUser(),
+                       $this->mContext->getRequest()->wasPosted() ? 'secure' : 'full' // T92357
+               );
+               if ( wfReadOnly() ) {
+                       $this->mPermErrors[] = [ 'readonlytext', wfReadOnlyReason() ];
+               }
+               $this->disabled = $this->mPermErrors != [];
                $this->disabledAttrib = $this->disabled
-                       ? array( 'disabled' => 'disabled' )
-                       : array();
-               
+                       ? [ 'disabled' => 'disabled' ]
+                       : [];
+
                $this->loadData();
        }
-       
+
        /**
         * Loads the current state of protection into the object.
         */
        function loadData() {
-               global $wgRequest, $wgUser;
-               global $wgRestrictionLevels;
-               
+               $levels = MWNamespace::getRestrictionLevels(
+                       $this->mTitle->getNamespace(), $this->mContext->getUser()
+               );
                $this->mCascade = $this->mTitle->areRestrictionsCascading();
 
-               $this->mReason = $wgRequest->getText( 'mwProtect-reason' );
-               $this->mReasonSelection = $wgRequest->getText( 'wpProtectReasonSelection' );
-               $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade', $this->mCascade );
+               $request = $this->mContext->getRequest();
+               $this->mReason = $request->getText( 'mwProtect-reason' );
+               $this->mReasonSelection = $request->getText( 'wpProtectReasonSelection' );
+               $this->mCascade = $request->getBool( 'mwProtect-cascade', $this->mCascade );
 
-               foreach( $this->mApplicableTypes as $action ) {
-                       // Fixme: this form currently requires individual selections,
+               foreach ( $this->mApplicableTypes as $action ) {
+                       // @todo FIXME: This form currently requires individual selections,
                        // but the db allows multiples separated by commas.
-                       
+
                        // Pull the actual restriction from the DB
                        $this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
 
@@ -103,8 +115,8 @@ class ProtectionForm {
                        }
                        $this->mExistingExpiry[$action] = $existingExpiry;
 
-                       $requestExpiry = $wgRequest->getText( "mwProtect-expiry-$action" );
-                       $requestExpirySelection = $wgRequest->getVal( "wpProtectExpirySelection-$action" );
+                       $requestExpiry = $request->getText( "mwProtect-expiry-$action" );
+                       $requestExpirySelection = $request->getVal( "wpProtectExpirySelection-$action" );
 
                        if ( $requestExpiry ) {
                                // Custom expiry takes precedence
@@ -114,31 +126,19 @@ class ProtectionForm {
                                // Expiry selected from list
                                $this->mExpiry[$action] = '';
                                $this->mExpirySelection[$action] = $requestExpirySelection;
-                       } elseif ( $existingExpiry == 'infinity' ) {
-                               // Existing expiry is infinite, use "infinite" in drop-down
-                               $this->mExpiry[$action] = '';
-                               $this->mExpirySelection[$action] = 'infinite';
                        } elseif ( $existingExpiry ) {
                                // Use existing expiry in its own list item
                                $this->mExpiry[$action] = '';
                                $this->mExpirySelection[$action] = $existingExpiry;
                        } else {
+                               // Catches 'infinity' - Existing expiry is infinite, use "infinite" in drop-down
                                // Final default: infinite
                                $this->mExpiry[$action] = '';
                                $this->mExpirySelection[$action] = 'infinite';
                        }
 
-                       $val = $wgRequest->getVal( "mwProtect-level-$action" );
-                       if( isset( $val ) && in_array( $val, $wgRestrictionLevels ) ) {
-                               // Prevent users from setting levels that they cannot later unset
-                               if( $val == 'sysop' ) {
-                                       // Special case, rewrite sysop to either protect and editprotected
-                                       if( !$wgUser->isAllowed('protect') && !$wgUser->isAllowed('editprotected') )
-                                               continue;
-                               } else {
-                                       if( !$wgUser->isAllowed($val) )
-                                               continue;
-                               }
+                       $val = $request->getVal( "mwProtect-level-$action" );
+                       if ( isset( $val ) && in_array( $val, $levels ) ) {
                                $this->mRestrictions[$action] = $val;
                        }
                }
@@ -147,7 +147,9 @@ class ProtectionForm {
        /**
         * Get the expiry time for a given action, by combining the relevant inputs.
         *
-        * @return 14-char timestamp or "infinity", or false if the input was invalid
+        * @param string $action
+        *
+        * @return string|false 14-char timestamp or "infinity", or false if the input was invalid
         */
        function getExpiry( $action ) {
                if ( $this->mExpirySelection[$action] == 'existing' ) {
@@ -157,8 +159,8 @@ class ProtectionForm {
                } else {
                        $value = $this->mExpirySelection[$action];
                }
-               if ( $value == 'infinite' || $value == 'indefinite' || $value == 'infinity' ) {
-                       $time = Block::infinity();
+               if ( wfIsInfinity( $value ) ) {
+                       $time = 'infinity';
                } else {
                        $unix = strtotime( $value );
 
@@ -166,7 +168,7 @@ class ProtectionForm {
                                return false;
                        }
 
-                       // Fixme: non-qualified absolute times are not in users specified timezone
+                       // @todo FIXME: Non-qualified absolute times are not in users specified timezone
                        // and there isn't notice about it in the ui
                        $time = wfTimestamp( TS_MW, $unix );
                }
@@ -177,11 +179,14 @@ class ProtectionForm {
         * Main entry point for action=protect and action=unprotect
         */
        function execute() {
-               global $wgRequest, $wgOut;
-               if( $wgRequest->wasPosted() ) {
-                       if( $this->save() ) {
+               if ( MWNamespace::getRestrictionLevels( $this->mTitle->getNamespace() ) === [ '' ] ) {
+                       throw new ErrorPageError( 'protect-badnamespace-title', 'protect-badnamespace-text' );
+               }
+
+               if ( $this->mContext->getRequest()->wasPosted() ) {
+                       if ( $this->save() ) {
                                $q = $this->mArticle->isRedirect() ? 'redirect=no' : '';
-                               $wgOut->redirect( $this->mTitle->getFullUrl( $q ) );
+                               $this->mContext->getOutput()->redirect( $this->mTitle->getFullURL( $q ) );
                        }
                } else {
                        $this->show();
@@ -191,75 +196,85 @@ class ProtectionForm {
        /**
         * Show the input form with optional error message
         *
-        * @param $err String: error message or null if there's no error
+        * @param string $err Error message or null if there's no error
         */
        function show( $err = null ) {
-               global $wgOut, $wgUser;
-
-               $wgOut->setRobotPolicy( 'noindex,nofollow' );
+               $out = $this->mContext->getOutput();
+               $out->setRobotPolicy( 'noindex,nofollow' );
+               $out->addBacklinkSubtitle( $this->mTitle );
+
+               if ( is_array( $err ) ) {
+                       $out->wrapWikiMsg( "<p class='error'>\n$1\n</p>\n", $err );
+               } elseif ( is_string( $err ) ) {
+                       $out->addHTML( "<p class='error'>{$err}</p>\n" );
+               }
 
-               if( is_null( $this->mTitle ) ||
-                       $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
-                       $wgOut->showFatalError( wfMsg( 'badarticleerror' ) );
+               if ( $this->mTitle->getRestrictionTypes() === [] ) {
+                       // No restriction types available for the current title
+                       // this might happen if an extension alters the available types
+                       $out->setPageTitle( $this->mContext->msg(
+                               'protect-norestrictiontypes-title',
+                               $this->mTitle->getPrefixedText()
+                       ) );
+                       $out->addWikiText( $this->mContext->msg( 'protect-norestrictiontypes-text' )->plain() );
+
+                       // Show the log in case protection was possible once
+                       $this->showLogExtract( $out );
+                       // return as there isn't anything else we can do
                        return;
                }
 
                list( $cascadeSources, /* $restrictions */ ) = $this->mTitle->getCascadeProtectionSources();
-
-               if ( $err != "" ) {
-                       $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
-                       $wgOut->addHTML( "<p class='error'>{$err}</p>\n" );
-               }
-
-               if ( $cascadeSources && count($cascadeSources) > 0 ) {
+               if ( $cascadeSources && count( $cascadeSources ) > 0 ) {
                        $titles = '';
 
                        foreach ( $cascadeSources as $title ) {
                                $titles .= '* [[:' . $title->getPrefixedText() . "]]\n";
                        }
 
-                       $wgOut->wrapWikiMsg( "<div id=\"mw-protect-cascadeon\">\n$1\n" . $titles . "</div>", array( 'protect-cascadeon', count($cascadeSources) ) );
+                       /** @todo FIXME: i18n issue, should use formatted number. */
+                       $out->wrapWikiMsg(
+                               "<div id=\"mw-protect-cascadeon\">\n$1\n" . $titles . "</div>",
+                               [ 'protect-cascadeon', count( $cascadeSources ) ]
+                       );
                }
 
-               $sk = $wgUser->getSkin();
-               $titleLink = $sk->link( $this->mTitle );
-               $wgOut->setPageTitle( wfMsg( 'protect-title', $this->mTitle->getPrefixedText() ) );
-               $wgOut->setSubtitle( wfMsg( 'protect-backlink', $titleLink ) );
-
                # Show an appropriate message if the user isn't allowed or able to change
                # the protection settings at this time
-               if( $this->disabled ) {
-                       if( wfReadOnly() ) {
-                               $wgOut->readOnlyPage();
-                       } elseif( $this->mPermErrors ) {
-                               $wgOut->addWikiText( $wgOut->formatPermissionsErrorMessage( $this->mPermErrors ) );
-                       }
+               if ( $this->disabled ) {
+                       $out->setPageTitle(
+                               $this->mContext->msg( 'protect-title-notallowed',
+                                       $this->mTitle->getPrefixedText() )
+                       );
+                       $out->addWikiText( $out->formatPermissionsErrorMessage( $this->mPermErrors, 'protect' ) );
                } else {
-                       $wgOut->addWikiMsg( 'protect-text', $this->mTitle->getPrefixedText() );
+                       $out->setPageTitle( $this->mContext->msg( 'protect-title', $this->mTitle->getPrefixedText() ) );
+                       $out->addWikiMsg( 'protect-text',
+                               wfEscapeWikiText( $this->mTitle->getPrefixedText() ) );
                }
 
-               $wgOut->addHTML( $this->buildForm() );
-
-               $this->showLogExtract( $wgOut );
+               $out->addHTML( $this->buildForm() );
+               $this->showLogExtract( $out );
        }
 
        /**
         * Save submitted protection form
         *
-        * @return Boolean: success
+        * @return bool Success
         */
        function save() {
-               global $wgRequest, $wgUser;
-
                # Permission check!
                if ( $this->disabled ) {
                        $this->show();
                        return false;
                }
 
-               $token = $wgRequest->getVal( 'wpEditToken' );
-               if ( !$wgUser->matchEditToken( $token ) ) {
-                       $this->show( wfMsg( 'sessionfailure' ) );
+               $request = $this->mContext->getRequest();
+               $user = $this->mContext->getUser();
+               $out = $this->mContext->getOutput();
+               $token = $request->getVal( 'wpEditToken' );
+               if ( !$user->matchEditToken( $token, [ 'protect', $this->mTitle->getPrefixedDBkey() ] ) ) {
+                       $this->show( [ 'sessionfailure' ] );
                        return false;
                }
 
@@ -267,158 +282,164 @@ class ProtectionForm {
                $reasonstr = $this->mReasonSelection;
                if ( $reasonstr != 'other' && $this->mReason != '' ) {
                        // Entry from drop down menu + additional comment
-                       $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->mReason;
+                       $reasonstr .= $this->mContext->msg( 'colon-separator' )->text() . $this->mReason;
                } elseif ( $reasonstr == 'other' ) {
                        $reasonstr = $this->mReason;
                }
-               $expiry = array();
-               foreach( $this->mApplicableTypes as $action ) {
+               $expiry = [];
+               foreach ( $this->mApplicableTypes as $action ) {
                        $expiry[$action] = $this->getExpiry( $action );
-                       if( empty($this->mRestrictions[$action]) )
+                       if ( empty( $this->mRestrictions[$action] ) ) {
                                continue; // unprotected
+                       }
                        if ( !$expiry[$action] ) {
-                               $this->show( wfMsg( 'protect_expiry_invalid' ) );
+                               $this->show( [ 'protect_expiry_invalid' ] );
                                return false;
                        }
                        if ( $expiry[$action] < wfTimestampNow() ) {
-                               $this->show( wfMsg( 'protect_expiry_old' ) );
+                               $this->show( [ 'protect_expiry_old' ] );
                                return false;
                        }
                }
 
-               # They shouldn't be able to do this anyway, but just to make sure, ensure that cascading restrictions aren't being applied
-               #  to a semi-protected page.
-               global $wgGroupPermissions;
+               $this->mCascade = $request->getBool( 'mwProtect-cascade' );
 
-               $edit_restriction = isset( $this->mRestrictions['edit'] ) ? $this->mRestrictions['edit'] : '';
-               $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade' );
-               if ($this->mCascade && ($edit_restriction != 'protect') &&
-                       !(isset($wgGroupPermissions[$edit_restriction]['protect']) && $wgGroupPermissions[$edit_restriction]['protect'] ) )
-                       $this->mCascade = false;
-
-               if ($this->mTitle->exists()) {
-                       $ok = $this->mArticle->updateRestrictions( $this->mRestrictions, $reasonstr, $this->mCascade, $expiry );
-               } else {
-                       $ok = $this->mTitle->updateTitleProtection( $this->mRestrictions['create'], $reasonstr, $expiry['create'] );
-               }
+               $status = $this->mArticle->doUpdateRestrictions(
+                       $this->mRestrictions,
+                       $expiry,
+                       $this->mCascade,
+                       $reasonstr,
+                       $user
+               );
 
-               if( !$ok ) {
-                       throw new FatalError( "Unknown error at restriction save time." );
+               if ( !$status->isOK() ) {
+                       $this->show( $out->parseInline( $status->getWikiText() ) );
+                       return false;
                }
 
+               /**
+                * Give extensions a change to handle added form items
+                *
+                * @since 1.19 you can (and you should) return false to abort saving;
+                *             you can also return an array of message name and its parameters
+                */
                $errorMsg = '';
-               # Give extensions a change to handle added form items
-               if( !wfRunHooks( 'ProtectionForm::save', array($this->mArticle,&$errorMsg) ) ) {
-                       throw new FatalError( "Unknown hook error at restriction save time." );
+               if ( !Hooks::run( 'ProtectionForm::save', [ $this->mArticle, &$errorMsg, $reasonstr ] ) ) {
+                       if ( $errorMsg == '' ) {
+                               $errorMsg = [ 'hookaborted' ];
+                       }
                }
-               if( $errorMsg != '' ) {
+               if ( $errorMsg != '' ) {
                        $this->show( $errorMsg );
                        return false;
                }
 
-               if( $wgRequest->getCheck( 'mwProtectWatch' ) && $wgUser->isLoggedIn() ) {
-                       $this->mArticle->doWatch();
-               } elseif( $this->mTitle->userIsWatching() ) {
-                       $this->mArticle->doUnwatch();
-               }
-               return $ok;
+               WatchAction::doWatchOrUnwatch( $request->getCheck( 'mwProtectWatch' ), $this->mTitle, $user );
+
+               return true;
        }
 
        /**
         * Build the input form
         *
-        * @return String: HTML form
+        * @return string HTML form
         */
        function buildForm() {
-               global $wgUser, $wgLang, $wgOut;
-
-               $mProtectreasonother = Xml::label( wfMsg( 'protectcomment' ), 'wpProtectReasonSelection' );
-               $mProtectreason = Xml::label( wfMsg( 'protect-otherreason' ), 'mwProtect-reason' );
-
+               $context = $this->mContext;
+               $user = $context->getUser();
+               $output = $context->getOutput();
+               $lang = $context->getLanguage();
+               $cascadingRestrictionLevels = $context->getConfig()->get( 'CascadingRestrictionLevels' );
                $out = '';
-               if( !$this->disabled ) {
-                       $wgOut->addModules( 'mediawiki.legacy.protect' );
-                       $out .= Xml::openElement( 'form', array( 'method' => 'post',
-                               'action' => $this->mTitle->getLocalUrl( 'action=protect' ),
-                               'id' => 'mw-Protect-Form', 'onsubmit' => 'ProtectionForm.enableUnchainedInputs(true)' ) );
-                       $out .= Html::hidden( 'wpEditToken',$wgUser->editToken() );
+               if ( !$this->disabled ) {
+                       $output->addModules( 'mediawiki.legacy.protect' );
+                       $output->addJsConfigVars( 'wgCascadeableLevels', $cascadingRestrictionLevels );
+                       $out .= Xml::openElement( 'form', [ 'method' => 'post',
+                               'action' => $this->mTitle->getLocalURL( 'action=protect' ),
+                               'id' => 'mw-Protect-Form' ] );
                }
 
                $out .= Xml::openElement( 'fieldset' ) .
-                       Xml::element( 'legend', null, wfMsg( 'protect-legend' ) ) .
-                       Xml::openElement( 'table', array( 'id' => 'mwProtectSet' ) ) .
+                       Xml::element( 'legend', null, $context->msg( 'protect-legend' )->text() ) .
+                       Xml::openElement( 'table', [ 'id' => 'mwProtectSet' ] ) .
                        Xml::openElement( 'tbody' );
 
-               foreach( $this->mRestrictions as $action => $selected ) {
-                       /* Not all languages have V_x <-> N_x relation */
-                       $msg = wfMsg( 'restriction-' . $action );
-                       if( wfEmptyMsg( 'restriction-' . $action, $msg ) ) {
-                               $msg = $action;
-                       }
-                       $out .= "<tr><td>".
+               $scExpiryOptions = wfMessage( 'protect-expiry-options' )->inContentLanguage()->text();
+               $showProtectOptions = $scExpiryOptions !== '-' && !$this->disabled;
+
+               // Not all languages have V_x <-> N_x relation
+               foreach ( $this->mRestrictions as $action => $selected ) {
+                       // Messages:
+                       // restriction-edit, restriction-move, restriction-create, restriction-upload
+                       $msg = $context->msg( 'restriction-' . $action );
+                       $out .= "<tr><td>" .
                        Xml::openElement( 'fieldset' ) .
-                       Xml::element( 'legend', null, $msg ) .
-                       Xml::openElement( 'table', array( 'id' => "mw-protect-table-$action" ) ) .
+                       Xml::element( 'legend', null, $msg->exists() ? $msg->text() : $action ) .
+                       Xml::openElement( 'table', [ 'id' => "mw-protect-table-$action" ] ) .
                                "<tr><td>" . $this->buildSelector( $action, $selected ) . "</td></tr><tr><td>";
 
-                       $reasonDropDown = Xml::listDropDown( 'wpProtectReasonSelection',
-                               wfMsgForContent( 'protect-dropdown' ),
-                               wfMsgForContent( 'protect-otherreason-op' ),
-                               $this->mReasonSelection,
-                               'mwProtect-reason', 4 );
-                       $scExpiryOptions = wfMsgForContent( 'protect-expiry-options' );
-
-                       $showProtectOptions = ($scExpiryOptions !== '-' && !$this->disabled);
-
-                       $mProtectexpiry = Xml::label( wfMsg( 'protectexpiry' ), "mwProtectExpirySelection-$action" );
-                       $mProtectother = Xml::label( wfMsg( 'protect-othertime' ), "mwProtect-$action-expires" );
-
-                       $expiryFormOptions = '';
-                       if ( $this->mExistingExpiry[$action] && $this->mExistingExpiry[$action] != 'infinity' ) {
-                               $timestamp = $wgLang->timeanddate( $this->mExistingExpiry[$action] );
-                               $d = $wgLang->date( $this->mExistingExpiry[$action] );
-                               $t = $wgLang->time( $this->mExistingExpiry[$action] );
-                               $expiryFormOptions .=
-                                       Xml::option(
-                                               wfMsg( 'protect-existing-expiry', $timestamp, $d, $t ),
-                                               'existing',
-                                               $this->mExpirySelection[$action] == 'existing'
-                                       ) . "\n";
+                       $mProtectexpiry = Xml::label(
+                               $context->msg( 'protectexpiry' )->text(),
+                               "mwProtectExpirySelection-$action"
+                       );
+                       $mProtectother = Xml::label(
+                               $context->msg( 'protect-othertime' )->text(),
+                               "mwProtect-$action-expires"
+                       );
+
+                       $expiryFormOptions = new XmlSelect(
+                               "wpProtectExpirySelection-$action",
+                               "mwProtectExpirySelection-$action",
+                               $this->mExpirySelection[$action]
+                       );
+                       $expiryFormOptions->setAttribute( 'tabindex', '2' );
+                       if ( $this->disabled ) {
+                               $expiryFormOptions->setAttribute( 'disabled', 'disabled' );
                        }
 
-                       $expiryFormOptions .= Xml::option( wfMsg( 'protect-othertime-op' ), "othertime" ) . "\n";
-                       foreach( explode(',', $scExpiryOptions) as $option ) {
-                               if ( strpos($option, ":") === false ) {
+                       if ( $this->mExistingExpiry[$action] ) {
+                               if ( $this->mExistingExpiry[$action] == 'infinity' ) {
+                                       $existingExpiryMessage = $context->msg( 'protect-existing-expiry-infinity' );
+                               } else {
+                                       $timestamp = $lang->userTimeAndDate( $this->mExistingExpiry[$action], $user );
+                                       $d = $lang->userDate( $this->mExistingExpiry[$action], $user );
+                                       $t = $lang->userTime( $this->mExistingExpiry[$action], $user );
+                                       $existingExpiryMessage = $context->msg(
+                                               'protect-existing-expiry',
+                                               $timestamp,
+                                               $d,
+                                               $t
+                                       );
+                               }
+                               $expiryFormOptions->addOption( $existingExpiryMessage->text(), 'existing' );
+                       }
+
+                       $expiryFormOptions->addOption(
+                               $context->msg( 'protect-othertime-op' )->text(),
+                               'othertime'
+                       );
+                       foreach ( explode( ',', $scExpiryOptions ) as $option ) {
+                               if ( strpos( $option, ":" ) === false ) {
                                        $show = $value = $option;
                                } else {
-                                       list($show, $value) = explode(":", $option);
+                                       list( $show, $value ) = explode( ":", $option );
                                }
-                               $show = htmlspecialchars($show);
-                               $value = htmlspecialchars($value);
-                               $expiryFormOptions .= Xml::option( $show, $value, $this->mExpirySelection[$action] === $value ) . "\n";
+                               $expiryFormOptions->addOption( $show, htmlspecialchars( $value ) );
                        }
                        # Add expiry dropdown
-                       if( $showProtectOptions && !$this->disabled ) {
+                       if ( $showProtectOptions && !$this->disabled ) {
                                $out .= "
                                        <table><tr>
                                                <td class='mw-label'>
                                                        {$mProtectexpiry}
                                                </td>
                                                <td class='mw-input'>" .
-                                                       Xml::tags( 'select',
-                                                               array(
-                                                                       'id' => "mwProtectExpirySelection-$action",
-                                                                       'name' => "wpProtectExpirySelection-$action",
-                                                                       'onchange' => "ProtectionForm.updateExpiryList(this)",
-                                                                       'tabindex' => '2' ) + $this->disabledAttrib,
-                                                               $expiryFormOptions ) .
+                                                       $expiryFormOptions->getHTML() .
                                                "</td>
                                        </tr></table>";
                        }
                        # Add custom expiry field
-                       $attribs = array( 'id' => "mwProtect-$action-expires",
-                               'onkeyup' => 'ProtectionForm.updateExpiry(this)',
-                               'onchange' => 'ProtectionForm.updateExpiry(this)' ) + $this->disabledAttrib;
+                       $attribs = [ 'id' => "mwProtect-$action-expires" ] + $this->disabledAttrib;
                        $out .= "<table><tr>
                                        <td class='mw-label'>" .
                                                $mProtectother .
@@ -433,27 +454,47 @@ class ProtectionForm {
                        "</td></tr>";
                }
                # Give extensions a chance to add items to the form
-               wfRunHooks( 'ProtectionForm::buildForm', array($this->mArticle,&$out) );
+               Hooks::run( 'ProtectionForm::buildForm', [ $this->mArticle, &$out ] );
 
                $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
 
                // JavaScript will add another row with a value-chaining checkbox
-               if( $this->mTitle->exists() ) {
-                       $out .= Xml::openElement( 'table', array( 'id' => 'mw-protect-table2' ) ) .
+               if ( $this->mTitle->exists() ) {
+                       $out .= Xml::openElement( 'table', [ 'id' => 'mw-protect-table2' ] ) .
                                Xml::openElement( 'tbody' );
                        $out .= '<tr>
                                        <td></td>
                                        <td class="mw-input">' .
-                                               Xml::checkLabel( wfMsg( 'protect-cascade' ), 'mwProtect-cascade', 'mwProtect-cascade',
-                                                       $this->mCascade, $this->disabledAttrib ) .
+                                               Xml::checkLabel(
+                                                       $context->msg( 'protect-cascade' )->text(),
+                                                       'mwProtect-cascade',
+                                                       'mwProtect-cascade',
+                                                       $this->mCascade, $this->disabledAttrib
+                                               ) .
                                        "</td>
                                </tr>\n";
                        $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
                }
 
                # Add manual and custom reason field/selects as well as submit
-               if( !$this->disabled ) {
-                       $out .=  Xml::openElement( 'table', array( 'id' => 'mw-protect-table3' ) ) .
+               if ( !$this->disabled ) {
+                       $mProtectreasonother = Xml::label(
+                               $context->msg( 'protectcomment' )->text(),
+                               'wpProtectReasonSelection'
+                       );
+
+                       $mProtectreason = Xml::label(
+                               $context->msg( 'protect-otherreason' )->text(),
+                               'mwProtect-reason'
+                       );
+
+                       $reasonDropDown = Xml::listDropDown( 'wpProtectReasonSelection',
+                               wfMessage( 'protect-dropdown' )->inContentLanguage()->text(),
+                               wfMessage( 'protect-otherreason-op' )->inContentLanguage()->text(),
+                               $this->mReasonSelection,
+                               'mwProtect-reason', 4 );
+
+                       $out .= Xml::openElement( 'table', [ 'id' => 'mw-protect-table3' ] ) .
                                Xml::openElement( 'tbody' );
                        $out .= "
                                <tr>
@@ -469,19 +510,22 @@ class ProtectionForm {
                                                {$mProtectreason}
                                        </td>
                                        <td class='mw-input'>" .
-                                               Xml::input( 'mwProtect-reason', 60, $this->mReason, array( 'type' => 'text',
-                                                       'id' => 'mwProtect-reason', 'maxlength' => 255 ) ) .
+                                               Xml::input( 'mwProtect-reason', 60, $this->mReason, [ 'type' => 'text',
+                                                       'id' => 'mwProtect-reason', 'maxlength' => 180 ] ) .
+                                                       // Limited maxlength as the database trims at 255 bytes and other texts
+                                                       // chosen by dropdown menus on this page are also included in this database field.
+                                                       // The byte limit of 180 bytes is enforced in javascript
                                        "</td>
                                </tr>";
                        # Disallow watching is user is not logged in
-                       if( $wgUser->isLoggedIn() ) {
+                       if ( $user->isLoggedIn() ) {
                                $out .= "
                                <tr>
                                        <td></td>
                                        <td class='mw-input'>" .
-                                               Xml::checkLabel( wfMsg( 'watchthis' ),
+                                               Xml::checkLabel( $context->msg( 'watchthis' )->text(),
                                                        'mwProtectWatch', 'mwProtectWatch',
-                                                       $this->mTitle->userIsWatching() || $wgUser->getOption( 'watchdefault' ) ) .
+                                                       $user->isWatched( $this->mTitle ) || $user->getOption( 'watchdefault' ) ) .
                                        "</td>
                                </tr>";
                        }
@@ -489,27 +533,33 @@ class ProtectionForm {
                                <tr>
                                        <td></td>
                                        <td class='mw-submit'>" .
-                                               Xml::submitButton( wfMsg( 'confirm' ), array( 'id' => 'mw-Protect-submit' ) ) .
+                                               Xml::submitButton(
+                                                       $context->msg( 'confirm' )->text(),
+                                                       [ 'id' => 'mw-Protect-submit' ]
+                                               ) .
                                        "</td>
                                </tr>\n";
                        $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
                }
                $out .= Xml::closeElement( 'fieldset' );
 
-               if ( $wgUser->isAllowed( 'editinterface' ) ) {
-                       $title = Title::makeTitle( NS_MEDIAWIKI, 'Protect-dropdown' );
-                       $link = $wgUser->getSkin()->link(
-                               $title,
-                               wfMsgHtml( 'protect-edit-reasonlist' ),
-                               array(),
-                               array( 'action' => 'edit' )
+               if ( $user->isAllowed( 'editinterface' ) ) {
+                       $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+                       $link = $linkRenderer->makeKnownLink(
+                               $context->msg( 'protect-dropdown' )->inContentLanguage()->getTitle(),
+                               $context->msg( 'protect-edit-reasonlist' )->text(),
+                               [],
+                               [ 'action' => 'edit' ]
                        );
                        $out .= '<p class="mw-protect-editreasons">' . $link . '</p>';
                }
 
                if ( !$this->disabled ) {
+                       $out .= Html::hidden(
+                               'wpEditToken',
+                               $user->getEditToken( [ 'protect', $this->mTitle->getPrefixedDBkey() ] )
+                       );
                        $out .= Xml::closeElement( 'form' );
-                       $wgOut->addScript( $this->buildCleanupScript() );
                }
 
                return $out;
@@ -518,94 +568,63 @@ class ProtectionForm {
        /**
         * Build protection level selector
         *
-        * @param $action String: action to protect
-        * @param $selected String: current protection level
-        * @return String: HTML fragment
+        * @param string $action Action to protect
+        * @param string $selected Current protection level
+        * @return string HTML fragment
         */
        function buildSelector( $action, $selected ) {
-               global $wgRestrictionLevels, $wgUser;
-
-               $levels = array();
-               foreach( $wgRestrictionLevels as $key ) {
-                       //don't let them choose levels above their own (aka so they can still unprotect and edit the page). but only when the form isn't disabled
-                       if( $key == 'sysop' ) {
-                               //special case, rewrite sysop to protect and editprotected
-                               if( !$wgUser->isAllowed('protect') && !$wgUser->isAllowed('editprotected') && !$this->disabled )
-                                       continue;
-                       } else {
-                               if( !$wgUser->isAllowed($key) && !$this->disabled )
-                                       continue;
-                       }
-                       $levels[] = $key;
-               }
+               // If the form is disabled, display all relevant levels. Otherwise,
+               // just show the ones this user can use.
+               $levels = MWNamespace::getRestrictionLevels( $this->mTitle->getNamespace(),
+                       $this->disabled ? null : $this->mContext->getUser()
+               );
 
                $id = 'mwProtect-level-' . $action;
-               $attribs = array(
-                       'id' => $id,
-                       'name' => $id,
-                       'size' => count( $levels ),
-                       'onchange' => 'ProtectionForm.updateLevels(this)',
-                       ) + $this->disabledAttrib;
-
-               $out = Xml::openElement( 'select', $attribs );
-               foreach( $levels as $key ) {
-                       $out .= Xml::option( $this->getOptionLabel( $key ), $key, $key == $selected );
+
+               $select = new XmlSelect( $id, $id, $selected );
+               $select->setAttribute( 'size', count( $levels ) );
+               if ( $this->disabled ) {
+                       $select->setAttribute( 'disabled', 'disabled' );
                }
-               $out .= Xml::closeElement( 'select' );
-               return $out;
+
+               foreach ( $levels as $key ) {
+                       $select->addOption( $this->getOptionLabel( $key ), $key );
+               }
+
+               return $select->getHTML();
        }
 
        /**
         * Prepare the label for a protection selector option
         *
-        * @param $permission String: permission required
-        * @return String
+        * @param string $permission Permission required
+        * @return string
         */
        private function getOptionLabel( $permission ) {
-               if( $permission == '' ) {
-                       return wfMsg( 'protect-default' );
+               if ( $permission == '' ) {
+                       return $this->mContext->msg( 'protect-default' )->text();
                } else {
-                       $key = "protect-level-{$permission}";
-                       $msg = wfMsg( $key );
-                       if( wfEmptyMsg( $key, $msg ) )
-                               $msg = wfMsg( 'protect-fallback', $permission );
-                       return $msg;
-               }
-       }
-       
-       function buildCleanupScript() {
-               global $wgRestrictionLevels, $wgGroupPermissions;
-               $script = 'var wgCascadeableLevels=';
-               $CascadeableLevels = array();
-               foreach( $wgRestrictionLevels as $key ) {
-                       if ( (isset($wgGroupPermissions[$key]['protect']) && $wgGroupPermissions[$key]['protect']) || $key == 'protect' ) {
-                               $CascadeableLevels[] = "'" . Xml::escapeJsString( $key ) . "'";
+                       // Messages: protect-level-autoconfirmed, protect-level-sysop
+                       $msg = $this->mContext->msg( "protect-level-{$permission}" );
+                       if ( $msg->exists() ) {
+                               return $msg->text();
                        }
+                       return $this->mContext->msg( 'protect-fallback', $permission )->text();
                }
-               $script .= "[" . implode(',',$CascadeableLevels) . "];\n";
-               $options = (object)array(
-                       'tableId' => 'mwProtectSet',
-                       'labelText' => wfMsg( 'protect-unchain-permissions' ),
-                       'numTypes' => count($this->mApplicableTypes),
-                       'existingMatch' => 1 == count( array_unique( $this->mExistingExpiry ) ),
-               );
-               $encOptions = Xml::encodeJsVar( $options );
-
-               $script .= "ProtectionForm.init($encOptions)";
-               return Html::inlineScript( "if ( window.mediaWiki ) { $script }" );
        }
 
        /**
         * Show protection long extracts for this page
         *
-        * @param $out OutputPage
+        * @param OutputPage &$out
         * @access private
         */
        function showLogExtract( &$out ) {
                # Show relevant lines from the protection log:
-               $out->addHTML( Xml::element( 'h2', null, LogPage::logName( 'protect' ) ) );
-               LogEventsList::showLogExtract( $out, 'protect', $this->mTitle->getPrefixedText() );
+               $protectLogPage = new LogPage( 'protect' );
+               $out->addHTML( Xml::element( 'h2', null, $protectLogPage->getName()->text() ) );
+               LogEventsList::showLogExtract( $out, 'protect', $this->mTitle );
                # Let extensions add other relevant log extracts
-               wfRunHooks( 'ProtectionForm::showLogExtract', array($this->mArticle,$out) );
+               Hooks::run( 'ProtectionForm::showLogExtract', [ $this->mArticle, $out ] );
        }
 }