MediaWiki  REL1_21
ProtectionForm.php
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00001 <?php
00029 class ProtectionForm {
00031         var $mRestrictions = array();
00032 
00034         var $mReason = '';
00035 
00037         var $mReasonSelection = '';
00038 
00040         var $mCascade = false;
00041 
00043         var $mExpiry = array();
00044 
00049         var $mExpirySelection = array();
00050 
00052         var $mPermErrors = array();
00053 
00055         var $mApplicableTypes = array();
00056 
00058         var $mExistingExpiry = array();
00059 
00060         function __construct( Page $article ) {
00061                 global $wgUser;
00062                 // Set instance variables.
00063                 $this->mArticle = $article;
00064                 $this->mTitle = $article->getTitle();
00065                 $this->mApplicableTypes = $this->mTitle->getRestrictionTypes();
00066 
00067                 // Check if the form should be disabled.
00068                 // If it is, the form will be available in read-only to show levels.
00069                 $this->mPermErrors = $this->mTitle->getUserPermissionsErrors( 'protect', $wgUser );
00070                 if ( wfReadOnly() ) {
00071                         $this->mPermErrors[] = array( 'readonlytext', wfReadOnlyReason() );
00072                 }
00073                 $this->disabled = $this->mPermErrors != array();
00074                 $this->disabledAttrib = $this->disabled
00075                         ? array( 'disabled' => 'disabled' )
00076                         : array();
00077 
00078                 $this->loadData();
00079         }
00080 
00084         function loadData() {
00085                 global $wgRequest, $wgUser;
00086                 global $wgRestrictionLevels;
00087 
00088                 $this->mCascade = $this->mTitle->areRestrictionsCascading();
00089 
00090                 $this->mReason = $wgRequest->getText( 'mwProtect-reason' );
00091                 $this->mReasonSelection = $wgRequest->getText( 'wpProtectReasonSelection' );
00092                 $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade', $this->mCascade );
00093 
00094                 foreach( $this->mApplicableTypes as $action ) {
00095                         // @todo FIXME: This form currently requires individual selections,
00096                         // but the db allows multiples separated by commas.
00097 
00098                         // Pull the actual restriction from the DB
00099                         $this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
00100 
00101                         if ( !$this->mRestrictions[$action] ) {
00102                                 // No existing expiry
00103                                 $existingExpiry = '';
00104                         } else {
00105                                 $existingExpiry = $this->mTitle->getRestrictionExpiry( $action );
00106                         }
00107                         $this->mExistingExpiry[$action] = $existingExpiry;
00108 
00109                         $requestExpiry = $wgRequest->getText( "mwProtect-expiry-$action" );
00110                         $requestExpirySelection = $wgRequest->getVal( "wpProtectExpirySelection-$action" );
00111 
00112                         if ( $requestExpiry ) {
00113                                 // Custom expiry takes precedence
00114                                 $this->mExpiry[$action] = $requestExpiry;
00115                                 $this->mExpirySelection[$action] = 'othertime';
00116                         } elseif ( $requestExpirySelection ) {
00117                                 // Expiry selected from list
00118                                 $this->mExpiry[$action] = '';
00119                                 $this->mExpirySelection[$action] = $requestExpirySelection;
00120                         } elseif ( $existingExpiry == 'infinity' ) {
00121                                 // Existing expiry is infinite, use "infinite" in drop-down
00122                                 $this->mExpiry[$action] = '';
00123                                 $this->mExpirySelection[$action] = 'infinite';
00124                         } elseif ( $existingExpiry ) {
00125                                 // Use existing expiry in its own list item
00126                                 $this->mExpiry[$action] = '';
00127                                 $this->mExpirySelection[$action] = $existingExpiry;
00128                         } else {
00129                                 // Final default: infinite
00130                                 $this->mExpiry[$action] = '';
00131                                 $this->mExpirySelection[$action] = 'infinite';
00132                         }
00133 
00134                         $val = $wgRequest->getVal( "mwProtect-level-$action" );
00135                         if( isset( $val ) && in_array( $val, $wgRestrictionLevels ) ) {
00136                                 // Prevent users from setting levels that they cannot later unset
00137                                 if( $val == 'sysop' ) {
00138                                         // Special case, rewrite sysop to either protect and editprotected
00139                                         if( !$wgUser->isAllowedAny( 'protect', 'editprotected' ) )
00140                                                 continue;
00141                                 } else {
00142                                         if( !$wgUser->isAllowed( $val ) )
00143                                                 continue;
00144                                 }
00145                                 $this->mRestrictions[$action] = $val;
00146                         }
00147                 }
00148         }
00149 
00157         function getExpiry( $action ) {
00158                 if ( $this->mExpirySelection[$action] == 'existing' ) {
00159                         return $this->mExistingExpiry[$action];
00160                 } elseif ( $this->mExpirySelection[$action] == 'othertime' ) {
00161                         $value = $this->mExpiry[$action];
00162                 } else {
00163                         $value = $this->mExpirySelection[$action];
00164                 }
00165                 if ( $value == 'infinite' || $value == 'indefinite' || $value == 'infinity' ) {
00166                         $time = wfGetDB( DB_SLAVE )->getInfinity();
00167                 } else {
00168                         $unix = strtotime( $value );
00169 
00170                         if ( !$unix || $unix === -1 ) {
00171                                 return false;
00172                         }
00173 
00174                         // @todo FIXME: Non-qualified absolute times are not in users specified timezone
00175                         // and there isn't notice about it in the ui
00176                         $time = wfTimestamp( TS_MW, $unix );
00177                 }
00178                 return $time;
00179         }
00180 
00184         function execute() {
00185                 global $wgRequest, $wgOut;
00186 
00187                 if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
00188                         throw new ErrorPageError( 'protect-badnamespace-title', 'protect-badnamespace-text' );
00189                 }
00190 
00191                 if( $wgRequest->wasPosted() ) {
00192                         if( $this->save() ) {
00193                                 $q = $this->mArticle->isRedirect() ? 'redirect=no' : '';
00194                                 $wgOut->redirect( $this->mTitle->getFullUrl( $q ) );
00195                         }
00196                 } else {
00197                         $this->show();
00198                 }
00199         }
00200 
00206         function show( $err = null ) {
00207                 global $wgOut;
00208 
00209                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
00210                 $wgOut->addBacklinkSubtitle( $this->mTitle );
00211 
00212                 if ( is_array( $err ) ) {
00213                         $wgOut->wrapWikiMsg( "<p class='error'>\n$1\n</p>\n", $err );
00214                 } elseif ( is_string( $err ) ) {
00215                         $wgOut->addHTML( "<p class='error'>{$err}</p>\n" );
00216                 }
00217 
00218                 if ( $this->mTitle->getRestrictionTypes() === array() ) {
00219                         // No restriction types available for the current title
00220                         // this might happen if an extension alters the available types
00221                         $wgOut->setPageTitle( wfMessage( 'protect-norestrictiontypes-title', $this->mTitle->getPrefixedText() ) );
00222                         $wgOut->addWikiText( wfMessage( 'protect-norestrictiontypes-text' )->text() );
00223 
00224                         // Show the log in case protection was possible once
00225                         $this->showLogExtract( $wgOut );
00226                         // return as there isn't anything else we can do
00227                         return;
00228                 }
00229 
00230                 list( $cascadeSources, /* $restrictions */ ) = $this->mTitle->getCascadeProtectionSources();
00231                 if ( $cascadeSources && count( $cascadeSources ) > 0 ) {
00232                         $titles = '';
00233 
00234                         foreach ( $cascadeSources as $title ) {
00235                                 $titles .= '* [[:' . $title->getPrefixedText() . "]]\n";
00236                         }
00237 
00238                         $wgOut->wrapWikiMsg( "<div id=\"mw-protect-cascadeon\">\n$1\n" . $titles . "</div>", array( 'protect-cascadeon', count( $cascadeSources ) ) );
00239                 }
00240 
00241                 # Show an appropriate message if the user isn't allowed or able to change
00242                 # the protection settings at this time
00243                 if ( $this->disabled ) {
00244                         $wgOut->setPageTitle( wfMessage( 'protect-title-notallowed', $this->mTitle->getPrefixedText() ) );
00245                         $wgOut->addWikiText( $wgOut->formatPermissionsErrorMessage( $this->mPermErrors, 'protect' ) );
00246                 } else {
00247                         $wgOut->setPageTitle( wfMessage( 'protect-title', $this->mTitle->getPrefixedText() ) );
00248                         $wgOut->addWikiMsg( 'protect-text',
00249                                 wfEscapeWikiText( $this->mTitle->getPrefixedText() ) );
00250                 }
00251 
00252                 $wgOut->addHTML( $this->buildForm() );
00253                 $this->showLogExtract( $wgOut );
00254         }
00255 
00261         function save() {
00262                 global $wgRequest, $wgUser, $wgOut;
00263 
00264                 # Permission check!
00265                 if ( $this->disabled ) {
00266                         $this->show();
00267                         return false;
00268                 }
00269 
00270                 $token = $wgRequest->getVal( 'wpEditToken' );
00271                 if ( !$wgUser->matchEditToken( $token, array( 'protect', $this->mTitle->getPrefixedDBkey() ) ) ) {
00272                         $this->show( array( 'sessionfailure' ) );
00273                         return false;
00274                 }
00275 
00276                 # Create reason string. Use list and/or custom string.
00277                 $reasonstr = $this->mReasonSelection;
00278                 if ( $reasonstr != 'other' && $this->mReason != '' ) {
00279                         // Entry from drop down menu + additional comment
00280                         $reasonstr .= wfMessage( 'colon-separator' )->text() . $this->mReason;
00281                 } elseif ( $reasonstr == 'other' ) {
00282                         $reasonstr = $this->mReason;
00283                 }
00284                 $expiry = array();
00285                 foreach( $this->mApplicableTypes as $action ) {
00286                         $expiry[$action] = $this->getExpiry( $action );
00287                         if( empty( $this->mRestrictions[$action] ) )
00288                                 continue; // unprotected
00289                         if ( !$expiry[$action] ) {
00290                                 $this->show( array( 'protect_expiry_invalid' ) );
00291                                 return false;
00292                         }
00293                         if ( $expiry[$action] < wfTimestampNow() ) {
00294                                 $this->show( array( 'protect_expiry_old' ) );
00295                                 return false;
00296                         }
00297                 }
00298 
00299                 # They shouldn't be able to do this anyway, but just to make sure, ensure that cascading restrictions aren't being applied
00300                 #  to a semi-protected page.
00301                 $edit_restriction = isset( $this->mRestrictions['edit'] ) ? $this->mRestrictions['edit'] : '';
00302                 $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade' );
00303                 if ( $this->mCascade && ($edit_restriction != 'protect') &&
00304                         !User::groupHasPermission( $edit_restriction, 'protect' ) )
00305                         $this->mCascade = false;
00306 
00307                 $status = $this->mArticle->doUpdateRestrictions( $this->mRestrictions, $expiry, $this->mCascade, $reasonstr, $wgUser );
00308 
00309                 if ( !$status->isOK() ) {
00310                         $this->show( $wgOut->parseInline( $status->getWikiText() ) );
00311                         return false;
00312                 }
00313 
00320                 $errorMsg = '';
00321                 if( !wfRunHooks( 'ProtectionForm::save', array( $this->mArticle, &$errorMsg ) ) ) {
00322                         if ( $errorMsg == '' ) {
00323                                 $errorMsg = array( 'hookaborted' );
00324                         }
00325                 }
00326                 if( $errorMsg != '' ) {
00327                         $this->show( $errorMsg );
00328                         return false;
00329                 }
00330 
00331                 if ( $wgUser->isLoggedIn() && $wgRequest->getCheck( 'mwProtectWatch' ) != $wgUser->isWatched( $this->mTitle ) ) {
00332                         if ( $wgRequest->getCheck( 'mwProtectWatch' ) ) {
00333                                 WatchAction::doWatch( $this->mTitle, $wgUser );
00334                         } else {
00335                                 WatchAction::doUnwatch( $this->mTitle, $wgUser );
00336                         }
00337                 }
00338                 return true;
00339         }
00340 
00346         function buildForm() {
00347                 global $wgUser, $wgLang, $wgOut;
00348 
00349                 $mProtectreasonother = Xml::label(
00350                         wfMessage( 'protectcomment' )->text(),
00351                         'wpProtectReasonSelection'
00352                 );
00353                 $mProtectreason = Xml::label(
00354                         wfMessage( 'protect-otherreason' )->text(),
00355                         'mwProtect-reason'
00356                 );
00357 
00358                 $out = '';
00359                 if( !$this->disabled ) {
00360                         $wgOut->addModules( 'mediawiki.legacy.protect' );
00361                         $out .= Xml::openElement( 'form', array( 'method' => 'post',
00362                                 'action' => $this->mTitle->getLocalUrl( 'action=protect' ),
00363                                 'id' => 'mw-Protect-Form', 'onsubmit' => 'ProtectionForm.enableUnchainedInputs(true)' ) );
00364                 }
00365 
00366                 $out .= Xml::openElement( 'fieldset' ) .
00367                         Xml::element( 'legend', null, wfMessage( 'protect-legend' )->text() ) .
00368                         Xml::openElement( 'table', array( 'id' => 'mwProtectSet' ) ) .
00369                         Xml::openElement( 'tbody' );
00370 
00371                 foreach( $this->mRestrictions as $action => $selected ) {
00372                         /* Not all languages have V_x <-> N_x relation */
00373                         $msg = wfMessage( 'restriction-' . $action );
00374                         $out .= "<tr><td>".
00375                         Xml::openElement( 'fieldset' ) .
00376                         Xml::element( 'legend', null, $msg->exists() ? $msg->text() : $action ) .
00377                         Xml::openElement( 'table', array( 'id' => "mw-protect-table-$action" ) ) .
00378                                 "<tr><td>" . $this->buildSelector( $action, $selected ) . "</td></tr><tr><td>";
00379 
00380                         $reasonDropDown = Xml::listDropDown( 'wpProtectReasonSelection',
00381                                 wfMessage( 'protect-dropdown' )->inContentLanguage()->text(),
00382                                 wfMessage( 'protect-otherreason-op' )->inContentLanguage()->text(),
00383                                 $this->mReasonSelection,
00384                                 'mwProtect-reason', 4 );
00385                         $scExpiryOptions = wfMessage( 'protect-expiry-options' )->inContentLanguage()->text();
00386 
00387                         $showProtectOptions = ($scExpiryOptions !== '-' && !$this->disabled);
00388 
00389                         $mProtectexpiry = Xml::label(
00390                                 wfMessage( 'protectexpiry' )->text(),
00391                                 "mwProtectExpirySelection-$action"
00392                         );
00393                         $mProtectother = Xml::label(
00394                                 wfMessage( 'protect-othertime' )->text(),
00395                                 "mwProtect-$action-expires"
00396                         );
00397 
00398                         $expiryFormOptions = '';
00399                         if ( $this->mExistingExpiry[$action] && $this->mExistingExpiry[$action] != 'infinity' ) {
00400                                 $timestamp = $wgLang->timeanddate( $this->mExistingExpiry[$action], true );
00401                                 $d = $wgLang->date( $this->mExistingExpiry[$action], true );
00402                                 $t = $wgLang->time( $this->mExistingExpiry[$action], true );
00403                                 $expiryFormOptions .=
00404                                         Xml::option(
00405                                                 wfMessage( 'protect-existing-expiry', $timestamp, $d, $t )->text(),
00406                                                 'existing',
00407                                                 $this->mExpirySelection[$action] == 'existing'
00408                                         ) . "\n";
00409                         }
00410 
00411                         $expiryFormOptions .= Xml::option(
00412                                 wfMessage( 'protect-othertime-op' )->text(),
00413                                 "othertime"
00414                         ) . "\n";
00415                         foreach( explode( ',', $scExpiryOptions ) as $option ) {
00416                                 if ( strpos( $option, ":" ) === false ) {
00417                                         $show = $value = $option;
00418                                 } else {
00419                                         list( $show, $value ) = explode( ":", $option );
00420                                 }
00421                                 $show = htmlspecialchars( $show );
00422                                 $value = htmlspecialchars( $value );
00423                                 $expiryFormOptions .= Xml::option( $show, $value, $this->mExpirySelection[$action] === $value ) . "\n";
00424                         }
00425                         # Add expiry dropdown
00426                         if( $showProtectOptions && !$this->disabled ) {
00427                                 $out .= "
00428                                         <table><tr>
00429                                                 <td class='mw-label'>
00430                                                         {$mProtectexpiry}
00431                                                 </td>
00432                                                 <td class='mw-input'>" .
00433                                                         Xml::tags( 'select',
00434                                                                 array(
00435                                                                         'id' => "mwProtectExpirySelection-$action",
00436                                                                         'name' => "wpProtectExpirySelection-$action",
00437                                                                         'onchange' => "ProtectionForm.updateExpiryList(this)",
00438                                                                         'tabindex' => '2' ) + $this->disabledAttrib,
00439                                                                 $expiryFormOptions ) .
00440                                                 "</td>
00441                                         </tr></table>";
00442                         }
00443                         # Add custom expiry field
00444                         $attribs = array( 'id' => "mwProtect-$action-expires",
00445                                 'onkeyup' => 'ProtectionForm.updateExpiry(this)',
00446                                 'onchange' => 'ProtectionForm.updateExpiry(this)' ) + $this->disabledAttrib;
00447                         $out .= "<table><tr>
00448                                         <td class='mw-label'>" .
00449                                                 $mProtectother .
00450                                         '</td>
00451                                         <td class="mw-input">' .
00452                                                 Xml::input( "mwProtect-expiry-$action", 50, $this->mExpiry[$action], $attribs ) .
00453                                         '</td>
00454                                 </tr></table>';
00455                         $out .= "</td></tr>" .
00456                         Xml::closeElement( 'table' ) .
00457                         Xml::closeElement( 'fieldset' ) .
00458                         "</td></tr>";
00459                 }
00460                 # Give extensions a chance to add items to the form
00461                 wfRunHooks( 'ProtectionForm::buildForm', array( $this->mArticle, &$out ) );
00462 
00463                 $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
00464 
00465                 // JavaScript will add another row with a value-chaining checkbox
00466                 if( $this->mTitle->exists() ) {
00467                         $out .= Xml::openElement( 'table', array( 'id' => 'mw-protect-table2' ) ) .
00468                                 Xml::openElement( 'tbody' );
00469                         $out .= '<tr>
00470                                         <td></td>
00471                                         <td class="mw-input">' .
00472                                                 Xml::checkLabel(
00473                                                         wfMessage( 'protect-cascade' )->text(),
00474                                                         'mwProtect-cascade',
00475                                                         'mwProtect-cascade',
00476                                                         $this->mCascade, $this->disabledAttrib
00477                                                 ) .
00478                                         "</td>
00479                                 </tr>\n";
00480                         $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
00481                 }
00482 
00483                 # Add manual and custom reason field/selects as well as submit
00484                 if( !$this->disabled ) {
00485                         $out .= Xml::openElement( 'table', array( 'id' => 'mw-protect-table3' ) ) .
00486                                 Xml::openElement( 'tbody' );
00487                         $out .= "
00488                                 <tr>
00489                                         <td class='mw-label'>
00490                                                 {$mProtectreasonother}
00491                                         </td>
00492                                         <td class='mw-input'>
00493                                                 {$reasonDropDown}
00494                                         </td>
00495                                 </tr>
00496                                 <tr>
00497                                         <td class='mw-label'>
00498                                                 {$mProtectreason}
00499                                         </td>
00500                                         <td class='mw-input'>" .
00501                                                 Xml::input( 'mwProtect-reason', 60, $this->mReason, array( 'type' => 'text',
00502                                                         'id' => 'mwProtect-reason', 'maxlength' => 180 ) ) .
00503                                                         // Limited maxlength as the database trims at 255 bytes and other texts
00504                                                         // chosen by dropdown menus on this page are also included in this database field.
00505                                                         // The byte limit of 180 bytes is enforced in javascript
00506                                         "</td>
00507                                 </tr>";
00508                         # Disallow watching is user is not logged in
00509                         if( $wgUser->isLoggedIn() ) {
00510                                 $out .= "
00511                                 <tr>
00512                                         <td></td>
00513                                         <td class='mw-input'>" .
00514                                                 Xml::checkLabel( wfMessage( 'watchthis' )->text(),
00515                                                         'mwProtectWatch', 'mwProtectWatch',
00516                                                         $wgUser->isWatched( $this->mTitle ) || $wgUser->getOption( 'watchdefault' ) ) .
00517                                         "</td>
00518                                 </tr>";
00519                         }
00520                         $out .= "
00521                                 <tr>
00522                                         <td></td>
00523                                         <td class='mw-submit'>" .
00524                                                 Xml::submitButton(
00525                                                         wfMessage( 'confirm' )->text(),
00526                                                         array( 'id' => 'mw-Protect-submit' )
00527                                                 ) .
00528                                         "</td>
00529                                 </tr>\n";
00530                         $out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
00531                 }
00532                 $out .= Xml::closeElement( 'fieldset' );
00533 
00534                 if ( $wgUser->isAllowed( 'editinterface' ) ) {
00535                         $title = Title::makeTitle( NS_MEDIAWIKI, 'Protect-dropdown' );
00536                         $link = Linker::link(
00537                                 $title,
00538                                 wfMessage( 'protect-edit-reasonlist' )->escaped(),
00539                                 array(),
00540                                 array( 'action' => 'edit' )
00541                         );
00542                         $out .= '<p class="mw-protect-editreasons">' . $link . '</p>';
00543                 }
00544 
00545                 if ( !$this->disabled ) {
00546                         $out .= Html::hidden( 'wpEditToken', $wgUser->getEditToken( array( 'protect', $this->mTitle->getPrefixedDBkey() ) ) );
00547                         $out .= Xml::closeElement( 'form' );
00548                         $wgOut->addScript( $this->buildCleanupScript() );
00549                 }
00550 
00551                 return $out;
00552         }
00553 
00561         function buildSelector( $action, $selected ) {
00562                 global $wgRestrictionLevels, $wgUser;
00563 
00564                 $levels = array();
00565                 foreach( $wgRestrictionLevels as $key ) {
00566                         //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
00567                         if( $key == 'sysop' ) {
00568                                 //special case, rewrite sysop to protect and editprotected
00569                                 if( !$wgUser->isAllowedAny( 'protect', 'editprotected' ) && !$this->disabled )
00570                                         continue;
00571                         } else {
00572                                 if( !$wgUser->isAllowed( $key ) && !$this->disabled )
00573                                         continue;
00574                         }
00575                         $levels[] = $key;
00576                 }
00577 
00578                 $id = 'mwProtect-level-' . $action;
00579                 $attribs = array(
00580                         'id' => $id,
00581                         'name' => $id,
00582                         'size' => count( $levels ),
00583                         'onchange' => 'ProtectionForm.updateLevels(this)',
00584                         ) + $this->disabledAttrib;
00585 
00586                 $out = Xml::openElement( 'select', $attribs );
00587                 foreach( $levels as $key ) {
00588                         $out .= Xml::option( $this->getOptionLabel( $key ), $key, $key == $selected );
00589                 }
00590                 $out .= Xml::closeElement( 'select' );
00591                 return $out;
00592         }
00593 
00600         private function getOptionLabel( $permission ) {
00601                 if( $permission == '' ) {
00602                         return wfMessage( 'protect-default' )->text();
00603                 } else {
00604                         $msg = wfMessage( "protect-level-{$permission}" );
00605                         if( $msg->exists() ) {
00606                                 return $msg->text();
00607                         }
00608                         return wfMessage( 'protect-fallback', $permission )->text();
00609                 }
00610         }
00611 
00612         function buildCleanupScript() {
00613                 global $wgRestrictionLevels, $wgOut;
00614 
00615                 $cascadeableLevels = array();
00616                 foreach( $wgRestrictionLevels as $key ) {
00617                         if ( User::groupHasPermission( $key, 'protect' )
00618                                 || $key == 'protect'
00619                         ) {
00620                                 $cascadeableLevels[] = $key;
00621                         }
00622                 }
00623                 $options = array(
00624                         'tableId' => 'mwProtectSet',
00625                         'labelText' => wfMessage( 'protect-unchain-permissions' )->plain(),
00626                         'numTypes' => count( $this->mApplicableTypes ),
00627                         'existingMatch' => count( array_unique( $this->mExistingExpiry ) ) === 1,
00628                 );
00629 
00630                 $wgOut->addJsConfigVars( 'wgCascadeableLevels', $cascadeableLevels );
00631                 $script = Xml::encodeJsCall( 'ProtectionForm.init', array( $options ) );
00632                 return Html::inlineScript( ResourceLoader::makeLoaderConditionalScript( $script ) );
00633         }
00634 
00641         function showLogExtract( &$out ) {
00642                 # Show relevant lines from the protection log:
00643                 $protectLogPage = new LogPage( 'protect' );
00644                 $out->addHTML( Xml::element( 'h2', null, $protectLogPage->getName()->text() ) );
00645                 LogEventsList::showLogExtract( $out, 'protect', $this->mTitle );
00646                 # Let extensions add other relevant log extracts
00647                 wfRunHooks( 'ProtectionForm::showLogExtract', array( $this->mArticle, $out ) );
00648         }
00649 }