includes/ProtectionForm.php

   1 <?php
   2 /**
   3  * Copyright (C) 2005 Brion Vibber <brion@pobox.com>
   4  * http://www.mediawiki.org/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @addtogroup SpecialPage
  22  */
  23
  24 class ProtectionForm {
  25         var $mRestrictions = array();
  26         var $mReason = '';
  27         var $mCascade = false;
  28         var $mExpiry = null;
  29
  30         function __construct( &$article ) {
  31                 global $wgRequest, $wgUser, $wgLang;
  32                 global $wgRestrictionTypes, $wgRestrictionLevels;
  33                 $this->mArticle =& $article;
  34                 $this->mTitle =& $article->mTitle;
  35
  36                 if( $this->mTitle ) {
  37                         $this->mTitle->loadRestrictions();
  38
  39                         foreach( $wgRestrictionTypes as $action ) {
  40                                 // Fixme: this form currently requires individual selections,
  41                                 // but the db allows multiples separated by commas.
  42                                 $this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
  43                         }
  44
  45                         $this->mCascade = $this->mTitle->areRestrictionsCascading();
  46
  47                         if ( $this->mTitle->mRestrictionsExpiry == 'infinity' ) {
  48                                 $this->mExpiry = 'infinite';
  49                         } else if ( strlen($this->mTitle->mRestrictionsExpiry) == 0 ) {
  50                                 $this->mExpiry = '';
  51                         } else {
  52                                 $this->mExpiry = $wgLang->timeanddate( $this->mTitle->mRestrictionsExpiry );
  53                         }
  54                 }
  55
  56                 // The form will be available in read-only to show levels.
  57                 $this->disabled = !$wgUser->isAllowed( 'protect' ) || wfReadOnly() || $wgUser->isBlocked();
  58                 $this->disabledAttrib = $this->disabled
  59                         ? array( 'disabled' => 'disabled' )
  60                         : array();
  61
  62                 if( $wgRequest->wasPosted() ) {
  63                         $this->mReason = $wgRequest->getText( 'mwProtect-reason' );
  64                         $this->mCascade = $wgRequest->getBool( 'mwProtect-cascade' );
  65                         $this->mExpiry = $wgRequest->getText( 'mwProtect-expiry' );
  66
  67                         foreach( $wgRestrictionTypes as $action ) {
  68                                 $val = $wgRequest->getVal( "mwProtect-level-$action" );
  69                                 if( isset( $val ) && in_array( $val, $wgRestrictionLevels ) ) {
  70                                         $this->mRestrictions[$action] = $val;
  71                                 }
  72                         }
  73
  74                         if( $this->save() ) {
  75                                 global $wgOut;
  76                                 $wgOut->redirect( $this->mTitle->getFullUrl() );
  77                                 return;
  78                         }
  79                 }
  80         }
  81
  82         function show( $err = null ) {
  83                 global $wgOut;
  84
  85                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
  86
  87                 if( is_null( $this->mTitle ) ||
  88                         !$this->mTitle->exists() ||
  89                         $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
  90                         $wgOut->showFatalError( wfMsg( 'badarticleerror' ) );
  91                         return;
  92                 }
  93
  94                 $cascadeSources = $this->mTitle->getCascadeProtectionSources();
  95
  96                 if ( "" != $err ) {
  97                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
  98                         $wgOut->addHTML( "<p class='error'>{$err}</p>\n" );
  99                 }
 100
 101                 if ( $cascadeSources && count($cascadeSources) > 0 ) {
 102                         $titles = '';
 103
 104                         foreach ( $cascadeSources as $title ) {
 105                                 $titles .= '* [[:' . $title->getPrefixedText() . "]]\n";
 106                         }
 107
 108                         $notice = wfMsg( 'protect-cascadeon' ) . "\r\n$titles";
 109
 110                         $wgOut->addWikiText( $notice );
 111                 }
 112
 113                 $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
 114                 $wgOut->setSubtitle( wfMsg( 'protectsub', $this->mTitle->getPrefixedText() ) );
 115
 116                 $wgOut->addWikiText(
 117                         wfMsg( $this->disabled ? "protect-viewtext" : "protect-text",
 118                                 wfEscapeWikiText( $this->mTitle->getPrefixedText() ) ) );
 119
 120                 $wgOut->addHTML( $this->buildForm() );
 121
 122                 $this->showLogExtract( $wgOut );
 123         }
 124
 125         function save() {
 126                 global $wgRequest, $wgUser, $wgOut;
 127                 if( !$wgRequest->wasPosted() ) {
 128                         return false;
 129                 }
 130
 131                 if( $this->disabled ) {
 132                         return false;
 133                 }
 134
 135                 $token = $wgRequest->getVal( 'wpEditToken' );
 136                 if( !$wgUser->matchEditToken( $token ) ) {
 137                         throw new FatalError( wfMsg( 'sessionfailure' ) );
 138                 }
 139
 140                 if ( strlen( $this->mExpiry ) == 0 ) {
 141                         $this->mExpiry = 'infinite';
 142                 }
 143
 144                 if ( $this->mExpiry == 'infinite' || $this->mExpiry == 'indefinite' ) {
 145                         $expiry = Block::infinity();
 146                 } else {
 147                         # Convert GNU-style date, on error returns -1 for PHP <5.1 and false for PHP >=5.1
 148                         $expiry = strtotime( $this->mExpiry );
 149
 150                         if ( $expiry < 0 || $expiry === false ) {
 151                                 $this->show( wfMsg( 'protect_expiry_invalid' ) );
 152                                 return;
 153                         }
 154
 155                         $expiry = wfTimestamp( TS_MW, $expiry );
 156                 }
 157
 158                 $ok = $this->mArticle->updateRestrictions( $this->mRestrictions, $this->mReason, $this->mCascade, $expiry );
 159                 if( !$ok ) {
 160                         throw new FatalError( "Unknown error at restriction save time." );
 161                 }
 162                 return $ok;
 163         }
 164
 165         function buildForm() {
 166                 global $wgUser;
 167
 168                 $out = '';
 169                 if( !$this->disabled ) {
 170                         $out .= $this->buildScript();
 171                         // The submission needs to reenable the move permission selector
 172                         // if it's in locked mode, or some browsers won't submit the data.
 173                         $out .= wfOpenElement( 'form', array(
 174                                 'action' => $this->mTitle->getLocalUrl( 'action=protect' ),
 175                                 'method' => 'post',
 176                                 'onsubmit' => 'protectEnable(true)' ) );
 177
 178                         $out .= wfElement( 'input', array(
 179                                 'type' => 'hidden',
 180                                 'name' => 'wpEditToken',
 181                                 'value' => $wgUser->editToken() ) );
 182                 }
 183
 184                 $out .= "<table id='mwProtectSet'>";
 185                 $out .= "<tbody>";
 186                 $out .= "<tr>\n";
 187                 foreach( $this->mRestrictions as $action => $required ) {
 188                         /* Not all languages have V_x <-> N_x relation */
 189                         $out .= "<th>" . wfMsgHtml( 'restriction-' . $action ) . "</th>\n";
 190                 }
 191                 $out .= "</tr>\n";
 192                 $out .= "<tr>\n";
 193                 foreach( $this->mRestrictions as $action => $selected ) {
 194                         $out .= "<td>\n";
 195                         $out .= $this->buildSelector( $action, $selected );
 196                         $out .= "</td>\n";
 197                 }
 198                 $out .= "</tr>\n";
 199
 200                 // JavaScript will add another row with a value-chaining checkbox
 201
 202                 $out .= "</tbody>\n";
 203                 $out .= "</table>\n";
 204
 205                 $out .= "<table>\n";
 206                 $out .= "<tbody>\n";
 207
 208                 global $wgEnableCascadingProtection;
 209
 210                 if ($wgEnableCascadingProtection)
 211                         $out .= $this->buildCascadeInput();
 212
 213                 $out .= $this->buildExpiryInput();
 214
 215                 if( !$this->disabled ) {
 216                         $out .= "<tr><td>" . $this->buildReasonInput() . "</td></tr>\n";
 217                         $out .= "<tr><td></td><td>" . $this->buildSubmit() . "</td></tr>\n";
 218                 }
 219
 220                 $out .= "</tbody>\n";
 221                 $out .= "</table>\n";
 222
 223                 if ( !$this->disabled ) {
 224                         $out .= "</form>\n";
 225                         $out .= $this->buildCleanupScript();
 226                 }
 227
 228                 return $out;
 229         }
 230
 231         function buildSelector( $action, $selected ) {
 232                 global $wgRestrictionLevels;
 233                 $id = 'mwProtect-level-' . $action;
 234                 $attribs = array(
 235                         'id' => $id,
 236                         'name' => $id,
 237                         'size' => count( $wgRestrictionLevels ),
 238                         'onchange' => 'protectLevelsUpdate(this)',
 239                         ) + $this->disabledAttrib;
 240
 241                 $out = wfOpenElement( 'select', $attribs );
 242                 foreach( $wgRestrictionLevels as $key ) {
 243                         $out .= $this->buildOption( $key, $selected );
 244                 }
 245                 $out .= "</select>\n";
 246                 return $out;
 247         }
 248
 249         function buildOption( $key, $selected ) {
 250                 $text = ( $key == '' )
 251                         ? wfMsg( 'protect-default' )
 252                         : wfMsg( "protect-level-$key" );
 253                 $selectedAttrib = ($selected == $key)
 254                         ? array( 'selected' => 'selected' )
 255                         : array();
 256                 return wfElement( 'option',
 257                         array( 'value' => $key ) + $selectedAttrib,
 258                         $text );
 259         }
 260
 261         function buildReasonInput() {
 262                 $id = 'mwProtect-reason';
 263                 return wfElement( 'label', array(
 264                                 'id' => "$id-label",
 265                                 'for' => $id ),
 266                                 wfMsg( 'protectcomment' ) ) .
 267                         '</td><td>' .
 268                         wfElement( 'input', array(
 269                                 'size' => 60,
 270                                 'name' => $id,
 271                                 'id' => $id ) );
 272         }
 273
 274         function buildCascadeInput() {
 275                 $id = 'mwProtect-cascade';
 276                 $ci = "<tr>" . wfCheckLabel( wfMsg( 'protect-cascade' ), $id, $id, $this->mCascade, $this->disabledAttrib) . "</tr>";
 277
 278                 return $ci;
 279         }
 280
 281         function buildExpiryInput() {
 282                 $id = 'mwProtect-expiry';
 283
 284                 $ci = "<tr> <td align=\"right\">";
 285                 $ci .= wfElement( 'label', array (
 286                                 'id' => "$id-label",
 287                                 'for' => $id ),
 288                                 wfMsg( 'protectexpiry' ) );
 289                 $ci .= "</td> <td aligh=\"left\">";
 290                 $ci .= wfElement( 'input', array(
 291                                 'size' => 60,
 292                                 'name' => $id,
 293                                 'id' => $id,
 294                                 'value' => $this->mExpiry ) );
 295                 $ci .= "</td></tr>";
 296
 297                 return $ci;
 298         }
 299
 300         function buildSubmit() {
 301                 return wfElement( 'input', array(
 302                         'type' => 'submit',
 303                         'value' => wfMsg( 'confirm' ) ) );
 304         }
 305
 306         function buildScript() {
 307                 global $wgStylePath, $wgStyleVersion;
 308                 return '<script type="text/javascript" src="' .
 309                         htmlspecialchars( $wgStylePath . "/common/protect.js?$wgStyleVersion" ) .
 310                         '"></script>';
 311         }
 312
 313         function buildCleanupScript() {
 314                 return '<script type="text/javascript">protectInitialize("mwProtectSet","' .
 315                         wfEscapeJsString( wfMsg( 'protect-unchain' ) ) . '")</script>';
 316         }
 317
 318         /**
 319          * @param OutputPage $out
 320          * @access private
 321          */
 322         function showLogExtract( &$out ) {
 323                 # Show relevant lines from the deletion log:
 324                 $out->addHTML( "<h2>" . htmlspecialchars( LogPage::logName( 'protect' ) ) . "</h2>\n" );
 325                 $logViewer = new LogViewer(
 326                         new LogReader(
 327                                 new FauxRequest(
 328                                         array( 'page' => $this->mTitle->getPrefixedText(),
 329                                                'type' => 'protect' ) ) ) );
 330                 $logViewer->showList( $out );
 331         }
 332 }
 333
 334 ?>