]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/ProtectionForm.php
MediaWiki 1.30.2-scripts2
[autoinstallsdev/mediawiki.git] / includes / ProtectionForm.php
index c249ec129130f4efabb8b1d5ad8de253af9461a8..53608e849a39eb720f3c155c09ca4682f81b73e8 100644 (file)
@@ -1,7 +1,9 @@
 <?php
 /**
- * Copyright (C) 2005 Brion Vibber <brion@pobox.com>
- * http://www.mediawiki.org/
+ * Page protection
+ *
+ * Copyright © 2005 Brion Vibber <brion@pobox.com>
+ * 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
  * 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
  */
+use MediaWiki\MediaWikiServices;
 
 /**
- * @todo document, briefly.
- * @addtogroup SpecialPage
+ * Handles the page protection UI and backend
  */
 class ProtectionForm {
-       var $mRestrictions = array();
-       var $mReason = '';
-       var $mCascade = false;
-       var $mExpiry = null;
-
-       function __construct( &$article ) {
-               global $wgRequest, $wgUser;
-               global $wgRestrictionTypes, $wgRestrictionLevels;
-               $this->mArticle =& $article;
-               $this->mTitle =& $article->mTitle;
-
-               if( $this->mTitle ) {
-                       $this->mTitle->loadRestrictions();
-
-                       foreach( $wgRestrictionTypes as $action ) {
-                               // Fixme: this form currently requires individual selections,
-                               // but the db allows multiples separated by commas.
-                               $this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
-                       }
+       /** @var array A map of action to restriction level, from request or default */
+       protected $mRestrictions = [];
+
+       /** @var string The custom/additional protection reason */
+       protected $mReason = '';
+
+       /** @var string The reason selected from the list, blank for other/additional */
+       protected $mReasonSelection = '';
+
+       /** @var bool True if the restrictions are cascading, from request or existing protection */
+       protected $mCascade = false;
+
+       /** @var array Map of action to "other" expiry time. Used in preference to mExpirySelection. */
+       protected $mExpiry = [];
+
+       /**
+        * @var array Map of action to value selected in expiry drop-down list.
+        * Will be set to 'othertime' whenever mExpiry is set.
+        */
+       protected $mExpirySelection = [];
+
+       /** @var array Permissions errors for the protect action */
+       protected $mPermErrors = [];
+
+       /** @var array Types (i.e. actions) for which levels can be selected */
+       protected $mApplicableTypes = [];
+
+       /** @var array Map of action to the expiry time of the existing protection */
+       protected $mExistingExpiry = [];
+
+       /** @var IContextSource */
+       private $mContext;
+
+       function __construct( Article $article ) {
+               // Set instance variables.
+               $this->mArticle = $article;
+               $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',
+                       $this->mContext->getUser(),
+                       $this->mContext->getRequest()->wasPosted() ? 'secure' : 'full' // T92357
+               );
+               if ( wfReadOnly() ) {
+                       $this->mPermErrors[] = [ 'readonlytext', wfReadOnlyReason() ];
+               }
+               $this->disabled = $this->mPermErrors != [];
+               $this->disabledAttrib = $this->disabled
+                       ? [ 'disabled' => 'disabled' ]
+                       : [];
+
+               $this->loadData();
+       }
+
+       /**
+        * Loads the current state of protection into the object.
+        */
+       function loadData() {
+               $levels = MWNamespace::getRestrictionLevels(
+                       $this->mTitle->getNamespace(), $this->mContext->getUser()
+               );
+               $this->mCascade = $this->mTitle->areRestrictionsCascading();
+
+               $request = $this->mContext->getRequest();
+               $this->mReason = $request->getText( 'mwProtect-reason' );
+               $this->mReasonSelection = $request->getText( 'wpProtectReasonSelection' );
+               $this->mCascade = $request->getBool( 'mwProtect-cascade', $this->mCascade );
 
-                       $this->mCascade = $this->mTitle->areRestrictionsCascading();
+               foreach ( $this->mApplicableTypes as $action ) {
+                       // @todo FIXME: This form currently requires individual selections,
+                       // but the db allows multiples separated by commas.
 
-                       if ( $this->mTitle->mRestrictionsExpiry == 'infinity' ) {
-                               $this->mExpiry = 'infinite';
-                       } else if ( strlen($this->mTitle->mRestrictionsExpiry) == 0 ) {
-                               $this->mExpiry = '';
+                       // Pull the actual restriction from the DB
+                       $this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
+
+                       if ( !$this->mRestrictions[$action] ) {
+                               // No existing expiry
+                               $existingExpiry = '';
+                       } else {
+                               $existingExpiry = $this->mTitle->getRestrictionExpiry( $action );
+                       }
+                       $this->mExistingExpiry[$action] = $existingExpiry;
+
+                       $requestExpiry = $request->getText( "mwProtect-expiry-$action" );
+                       $requestExpirySelection = $request->getVal( "wpProtectExpirySelection-$action" );
+
+                       if ( $requestExpiry ) {
+                               // Custom expiry takes precedence
+                               $this->mExpiry[$action] = $requestExpiry;
+                               $this->mExpirySelection[$action] = 'othertime';
+                       } elseif ( $requestExpirySelection ) {
+                               // Expiry selected from list
+                               $this->mExpiry[$action] = '';
+                               $this->mExpirySelection[$action] = $requestExpirySelection;
+                       } elseif ( $existingExpiry ) {
+                               // Use existing expiry in its own list item
+                               $this->mExpiry[$action] = '';
+                               $this->mExpirySelection[$action] = $existingExpiry;
                        } else {
-                               $this->mExpiry = wfTimestamp( TS_RFC2822, $this->mTitle->mRestrictionsExpiry );
+                               // Catches 'infinity' - Existing expiry is infinite, use "infinite" in drop-down
+                               // Final default: infinite
+                               $this->mExpiry[$action] = '';
+                               $this->mExpirySelection[$action] = 'infinite';
+                       }
+
+                       $val = $request->getVal( "mwProtect-level-$action" );
+                       if ( isset( $val ) && in_array( $val, $levels ) ) {
+                               $this->mRestrictions[$action] = $val;
                        }
                }
+       }
 
-               // The form will be available in read-only to show levels.
-               $this->disabled = !$wgUser->isAllowed( 'protect' ) || wfReadOnly() || $wgUser->isBlocked();
-               $this->disabledAttrib = $this->disabled
-                       ? array( 'disabled' => 'disabled' )
-                       : array();
-
-               if( $wgRequest->wasPosted() ) {
-                       $this->mReason = $wgRequest->getText( 'mwProtect-reason' );
-                       $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade' );
-                       $this->mExpiry = $wgRequest->getText( 'mwProtect-expiry' );
-
-                       foreach( $wgRestrictionTypes as $action ) {
-                               $val = $wgRequest->getVal( "mwProtect-level-$action" );
-                               if( isset( $val ) && in_array( $val, $wgRestrictionLevels ) ) {
-                                       $this->mRestrictions[$action] = $val;
-                               }
+       /**
+        * Get the expiry time for a given action, by combining the relevant inputs.
+        *
+        * @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' ) {
+                       return $this->mExistingExpiry[$action];
+               } elseif ( $this->mExpirySelection[$action] == 'othertime' ) {
+                       $value = $this->mExpiry[$action];
+               } else {
+                       $value = $this->mExpirySelection[$action];
+               }
+               if ( wfIsInfinity( $value ) ) {
+                       $time = 'infinity';
+               } else {
+                       $unix = strtotime( $value );
+
+                       if ( !$unix || $unix === -1 ) {
+                               return false;
                        }
+
+                       // @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 );
                }
+               return $time;
        }
-       
+
+       /**
+        * Main entry point for action=protect and action=unprotect
+        */
        function execute() {
-               global $wgRequest, $wgOut;
-               if( $wgRequest->wasPosted() ) {
-                       if( $this->save() ) {
-                               $article = new Article( $this->mTitle );
-                               $q = $article->isRedirect() ? 'redirect=no' : '';
-                               $wgOut->redirect( $this->mTitle->getFullUrl( $q ) );
+               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' : '';
+                               $this->mContext->getOutput()->redirect( $this->mTitle->getFullURL( $q ) );
                        }
                } else {
                        $this->show();
                }
        }
 
+       /**
+        * Show the input form with optional error message
+        *
+        * @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->exists() ||
-                       $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";
                        }
 
-                       $notice = wfMsgExt( 'protect-cascadeon', array('parsemag'), count($cascadeSources) ) . "\r\n$titles";
-
-                       $wgOut->addWikiText( $notice );
+                       /** @todo FIXME: i18n issue, should use formatted number. */
+                       $out->wrapWikiMsg(
+                               "<div id=\"mw-protect-cascadeon\">\n$1\n" . $titles . "</div>",
+                               [ 'protect-cascadeon', count( $cascadeSources ) ]
+                       );
                }
 
-               $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
-               $wgOut->setSubtitle( wfMsg( 'protectsub', $this->mTitle->getPrefixedText() ) );
-
                # Show an appropriate message if the user isn't allowed or able to change
                # the protection settings at this time
-               if( $this->disabled ) {
-                       if( $wgUser->isAllowed( 'protect' ) ) {
-                               if( $wgUser->isBlocked() ) {
-                                       # Blocked
-                                       $message = 'protect-locked-blocked';
-                               } else {
-                                       # Database lock
-                                       $message = 'protect-locked-dblock';
-                               }
-                       } else {
-                               # Permission error
-                               $message = 'protect-locked-access';
-                       }
+               if ( $this->disabled ) {
+                       $out->setPageTitle(
+                               $this->mContext->msg( 'protect-title-notallowed',
+                                       $this->mTitle->getPrefixedText() )
+                       );
+                       $out->addWikiText( $out->formatPermissionsErrorMessage( $this->mPermErrors, 'protect' ) );
                } else {
-                       $message = 'protect-text';
+                       $out->setPageTitle( $this->mContext->msg( 'protect-title', $this->mTitle->getPrefixedText() ) );
+                       $out->addWikiMsg( 'protect-text',
+                               wfEscapeWikiText( $this->mTitle->getPrefixedText() ) );
                }
-               $wgOut->addWikiText( wfMsg( $message, wfEscapeWikiText( $this->mTitle->getPrefixedText() ) ) );
 
-               $wgOut->addHTML( $this->buildForm() );
-
-               $this->showLogExtract( $wgOut );
+               $out->addHTML( $this->buildForm() );
+               $this->showLogExtract( $out );
        }
 
+       /**
+        * Save submitted protection form
+        *
+        * @return bool Success
+        */
        function save() {
-               global $wgRequest, $wgUser, $wgOut;
-               
-               if( $this->disabled ) {
+               # 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;
                }
 
-               if ( strlen( $this->mExpiry ) == 0 ) {
-                       $this->mExpiry = 'infinite';
+               # Create reason string. Use list and/or custom string.
+               $reasonstr = $this->mReasonSelection;
+               if ( $reasonstr != 'other' && $this->mReason != '' ) {
+                       // Entry from drop down menu + additional comment
+                       $reasonstr .= $this->mContext->msg( 'colon-separator' )->text() . $this->mReason;
+               } elseif ( $reasonstr == 'other' ) {
+                       $reasonstr = $this->mReason;
                }
-
-               if ( $this->mExpiry == 'infinite' || $this->mExpiry == 'indefinite' ) {
-                       $expiry = Block::infinity();
-               } else {
-                       # Convert GNU-style date, on error returns -1 for PHP <5.1 and false for PHP >=5.1
-                       $expiry = strtotime( $this->mExpiry );
-
-                       if ( $expiry < 0 || $expiry === false ) {
-                               $this->show( wfMsg( 'protect_expiry_invalid' ) );
+               $expiry = [];
+               foreach ( $this->mApplicableTypes as $action ) {
+                       $expiry[$action] = $this->getExpiry( $action );
+                       if ( empty( $this->mRestrictions[$action] ) ) {
+                               continue; // unprotected
+                       }
+                       if ( !$expiry[$action] ) {
+                               $this->show( [ 'protect_expiry_invalid' ] );
                                return false;
                        }
-
-                       $expiry = wfTimestamp( TS_MW, $expiry );
-
-                       if ( $expiry < wfTimestampNow() ) {
-                               $this->show( wfMsg( 'protect_expiry_old' ) );
+                       if ( $expiry[$action] < wfTimestampNow() ) {
+                               $this->show( [ 'protect_expiry_old' ] );
                                return false;
                        }
+               }
 
+               $this->mCascade = $request->getBool( 'mwProtect-cascade' );
+
+               $status = $this->mArticle->doUpdateRestrictions(
+                       $this->mRestrictions,
+                       $expiry,
+                       $this->mCascade,
+                       $reasonstr,
+                       $user
+               );
+
+               if ( !$status->isOK() ) {
+                       $this->show( $out->parseInline( $status->getWikiText() ) );
+                       return false;
                }
 
-               $ok = $this->mArticle->updateRestrictions( $this->mRestrictions, $this->mReason, $this->mCascade, $expiry );
-               if( !$ok ) {
-                       throw new FatalError( "Unknown error at restriction save time." );
+               /**
+                * 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 = '';
+               if ( !Hooks::run( 'ProtectionForm::save', [ $this->mArticle, &$errorMsg, $reasonstr ] ) ) {
+                       if ( $errorMsg == '' ) {
+                               $errorMsg = [ 'hookaborted' ];
+                       }
                }
-               
-               if( $wgRequest->getCheck( 'mwProtectWatch' ) ) {
-                       $this->mArticle->doWatch();
-               } elseif( $this->mTitle->userIsWatching() ) {
-                       $this->mArticle->doUnwatch();
+               if ( $errorMsg != '' ) {
+                       $this->show( $errorMsg );
+                       return false;
                }
-               
-               return $ok;
+
+               WatchAction::doWatchOrUnwatch( $request->getCheck( 'mwProtectWatch' ), $this->mTitle, $user );
+
+               return true;
        }
 
+       /**
+        * Build the input form
+        *
+        * @return string HTML form
+        */
        function buildForm() {
-               global $wgUser;
-
+               $context = $this->mContext;
+               $user = $context->getUser();
+               $output = $context->getOutput();
+               $lang = $context->getLanguage();
+               $cascadingRestrictionLevels = $context->getConfig()->get( 'CascadingRestrictionLevels' );
                $out = '';
-               if( !$this->disabled ) {
-                       $out .= $this->buildScript();
-                       // The submission needs to reenable the move permission selector
-                       // if it's in locked mode, or some browsers won't submit the data.
-                       $out .= wfOpenElement( 'form', array(
-                               'id' => 'mw-Protect-Form',
-                               'action' => $this->mTitle->getLocalUrl( 'action=protect' ),
-                               'method' => 'post',
-                               'onsubmit' => 'protectEnable(true)' ) );
-
-                       $out .= wfElement( 'input', array(
-                               'type' => 'hidden',
-                               'name' => 'wpEditToken',
-                               'value' => $wgUser->editToken() ) );
-               }
-
-               $out .= "<table id='mwProtectSet'>";
-               $out .= "<tbody>";
-               $out .= "<tr>\n";
-               foreach( $this->mRestrictions as $action => $required ) {
-                       /* Not all languages have V_x <-> N_x relation */
-                       $out .= "<th>" . wfMsgHtml( 'restriction-' . $action ) . "</th>\n";
-               }
-               $out .= "</tr>\n";
-               $out .= "<tr>\n";
-               foreach( $this->mRestrictions as $action => $selected ) {
-                       $out .= "<td>\n";
-                       $out .= $this->buildSelector( $action, $selected );
-                       $out .= "</td>\n";
+               if ( !$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 .= "</tr>\n";
-
-               // JavaScript will add another row with a value-chaining checkbox
 
-               $out .= "</tbody>\n";
-               $out .= "</table>\n";
+               $out .= Xml::openElement( 'fieldset' ) .
+                       Xml::element( 'legend', null, $context->msg( 'protect-legend' )->text() ) .
+                       Xml::openElement( 'table', [ 'id' => 'mwProtectSet' ] ) .
+                       Xml::openElement( 'tbody' );
+
+               $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->exists() ? $msg->text() : $action ) .
+                       Xml::openElement( 'table', [ 'id' => "mw-protect-table-$action" ] ) .
+                               "<tr><td>" . $this->buildSelector( $action, $selected ) . "</td></tr><tr><td>";
+
+                       $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' );
+                       }
 
-               $out .= "<table>\n";
-               $out .= "<tbody>\n";
+                       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' );
+                       }
 
-               global $wgEnableCascadingProtection;
-               if( $wgEnableCascadingProtection )
-                       $out .= '<tr><td></td><td>' . $this->buildCascadeInput() . "</td></tr>\n";
+                       $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 );
+                               }
+                               $expiryFormOptions->addOption( $show, htmlspecialchars( $value ) );
+                       }
+                       # Add expiry dropdown
+                       if ( $showProtectOptions && !$this->disabled ) {
+                               $out .= "
+                                       <table><tr>
+                                               <td class='mw-label'>
+                                                       {$mProtectexpiry}
+                                               </td>
+                                               <td class='mw-input'>" .
+                                                       $expiryFormOptions->getHTML() .
+                                               "</td>
+                                       </tr></table>";
+                       }
+                       # Add custom expiry field
+                       $attribs = [ 'id' => "mwProtect-$action-expires" ] + $this->disabledAttrib;
+                       $out .= "<table><tr>
+                                       <td class='mw-label'>" .
+                                               $mProtectother .
+                                       '</td>
+                                       <td class="mw-input">' .
+                                               Xml::input( "mwProtect-expiry-$action", 50, $this->mExpiry[$action], $attribs ) .
+                                       '</td>
+                               </tr></table>';
+                       $out .= "</td></tr>" .
+                       Xml::closeElement( 'table' ) .
+                       Xml::closeElement( 'fieldset' ) .
+                       "</td></tr>";
+               }
+               # Give extensions a chance to add items to the form
+               Hooks::run( 'ProtectionForm::buildForm', [ $this->mArticle, &$out ] );
 
-               $out .= $this->buildExpiryInput();
+               $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
 
-               if( !$this->disabled ) {
-                       $out .= "<tr><td>" . $this->buildReasonInput() . "</td></tr>\n";
-                       $out .= "<tr><td></td><td>" . $this->buildWatchInput() . "</td></tr>\n";
-                       $out .= "<tr><td></td><td>" . $this->buildSubmit() . "</td></tr>\n";
+               // JavaScript will add another row with a value-chaining checkbox
+               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(
+                                                       $context->msg( 'protect-cascade' )->text(),
+                                                       'mwProtect-cascade',
+                                                       'mwProtect-cascade',
+                                                       $this->mCascade, $this->disabledAttrib
+                                               ) .
+                                       "</td>
+                               </tr>\n";
+                       $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
                }
 
-               $out .= "</tbody>\n";
-               $out .= "</table>\n";
+               # Add manual and custom reason field/selects as well as submit
+               if ( !$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' );
+                       $out .= "
+                               <tr>
+                                       <td class='mw-label'>
+                                               {$mProtectreasonother}
+                                       </td>
+                                       <td class='mw-input'>
+                                               {$reasonDropDown}
+                                       </td>
+                               </tr>
+                               <tr>
+                                       <td class='mw-label'>
+                                               {$mProtectreason}
+                                       </td>
+                                       <td class='mw-input'>" .
+                                               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 ( $user->isLoggedIn() ) {
+                               $out .= "
+                               <tr>
+                                       <td></td>
+                                       <td class='mw-input'>" .
+                                               Xml::checkLabel( $context->msg( 'watchthis' )->text(),
+                                                       'mwProtectWatch', 'mwProtectWatch',
+                                                       $user->isWatched( $this->mTitle ) || $user->getOption( 'watchdefault' ) ) .
+                                       "</td>
+                               </tr>";
+                       }
+                       $out .= "
+                               <tr>
+                                       <td></td>
+                                       <td class='mw-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 ( $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 .= "</form>\n";
-                       $out .= $this->buildCleanupScript();
+                       $out .= Html::hidden(
+                               'wpEditToken',
+                               $user->getEditToken( [ 'protect', $this->mTitle->getPrefixedDBkey() ] )
+                       );
+                       $out .= Xml::closeElement( 'form' );
                }
 
                return $out;
        }
 
+       /**
+        * Build protection level selector
+        *
+        * @param string $action Action to protect
+        * @param string $selected Current protection level
+        * @return string HTML fragment
+        */
        function buildSelector( $action, $selected ) {
-               global $wgRestrictionLevels;
+               // 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( $wgRestrictionLevels ),
-                       'onchange' => 'protectLevelsUpdate(this)',
-                       ) + $this->disabledAttrib;
-
-               $out = wfOpenElement( 'select', $attribs );
-               foreach( $wgRestrictionLevels 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 .= "</select>\n";
-               return $out;
+
+               foreach ( $levels as $key ) {
+                       $select->addOption( $this->getOptionLabel( $key ), $key );
+               }
+
+               return $select->getHTML();
        }
 
        /**
@@ -291,96 +601,30 @@ class ProtectionForm {
         * @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 buildReasonInput() {
-               $id = 'mwProtect-reason';
-               return wfElement( 'label', array(
-                               'id' => "$id-label",
-                               'for' => $id ),
-                               wfMsg( 'protectcomment' ) ) .
-                       '</td><td>' .
-                       wfElement( 'input', array(
-                               'size' => 60,
-                               'name' => $id,
-                               'id' => $id,
-                               'value' => $this->mReason ) );
-       }
-
-       function buildCascadeInput() {
-               $id = 'mwProtect-cascade';
-               $ci = wfCheckLabel( wfMsg( 'protect-cascade' ), $id, $id, $this->mCascade, $this->disabledAttrib);
-               return $ci;
-       }
-
-       function buildExpiryInput() {
-               $attribs = array( 'id' => 'expires' ) + $this->disabledAttrib;
-               return '<tr>'
-                       . '<td><label for="expires">' . wfMsgExt( 'protectexpiry', array( 'parseinline' ) ) . '</label></td>'
-                       . '<td>' . Xml::input( 'mwProtect-expiry', 60, $this->mExpiry, $attribs ) . '</td>'
-                       . '</tr>';
-       }
-       
-       function buildWatchInput() {
-               global $wgUser;
-               return Xml::checkLabel(
-                       wfMsg( 'watchthis' ),
-                       'mwProtectWatch',
-                       'mwProtectWatch',
-                       $this->mTitle->userIsWatching() || $wgUser->getOption( 'watchdefault' )
-               );
-       }
-
-       function buildSubmit() {
-               return wfElement( 'input', array(
-                       'id' => 'mw-Protect-submit',
-                       'type' => 'submit',
-                       'value' => wfMsg( 'confirm' ) ) );
-       }
-
-       function buildScript() {
-               global $wgStylePath, $wgStyleVersion;
-               return '<script type="text/javascript" src="' .
-                       htmlspecialchars( $wgStylePath . "/common/protect.js?$wgStyleVersion" ) .
-                       '"></script>';
-       }
-
-       function buildCleanupScript() {
-               global $wgRestrictionLevels, $wgGroupPermissions;
-               $script = 'var wgCascadeableLevels=';
-               $CascadeableLevels = array();
-               foreach( $wgRestrictionLevels as $key ) {
-                       if ( isset($wgGroupPermissions[$key]['protect']) && $wgGroupPermissions[$key]['protect'] ) {
-                               $CascadeableLevels[]="'" . wfEscapeJsString($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";
-               $script .= 'protectInitialize("mwProtectSet","' . wfEscapeJsString( wfMsg( 'protect-unchain' ) ) . '")';
-               return '<script type="text/javascript">' . $script . '</script>';
        }
 
        /**
-        * @param OutputPage $out
+        * Show protection long extracts for this page
+        *
+        * @param OutputPage &$out
         * @access private
         */
        function showLogExtract( &$out ) {
                # Show relevant lines from the protection log:
-               $out->addHTML( "<h2>" . htmlspecialchars( LogPage::logName( 'protect' ) ) . "</h2>\n" );
-               $logViewer = new LogViewer(
-                       new LogReader(
-                               new FauxRequest(
-                                       array( 'page' => $this->mTitle->getPrefixedText(),
-                                              'type' => 'protect' ) ) ) );
-               $logViewer->showList( $out );
+               $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
+               Hooks::run( 'ProtectionForm::showLogExtract', [ $this->mArticle, $out ] );
        }
-
-}
\ No newline at end of file
+}