includes/installer/WebInstallerOutput.php

   1 <?php
   2 /**
   3  * Output handler for the web installer.
   4  *
   5  * @file
   6  * @ingroup Deployment
   7  */
   8
   9 /**
  10  * Output class modelled on OutputPage.
  11  *
  12  * I've opted to use a distinct class rather than derive from OutputPage here in
  13  * the interests of separation of concerns: if we used a subclass, there would be
  14  * quite a lot of things you could do in OutputPage that would break the installer,
  15  * that wouldn't be immediately obvious.
  16  *
  17  * @ingroup Deployment
  18  * @since 1.17
  19  */
  20 class WebInstallerOutput {
  21         /**
  22          * The WebInstaller object this WebInstallerOutput is used by.
  23          *
  24          * @var WebInstaller
  25          */
  26         public $parent;
  27
  28         /**
  29          * Buffered contents that haven't been output yet
  30          * @var String
  31          */
  32         private $contents = '';
  33
  34         /**
  35          * Has the header (or short header) been output?
  36          * @var bool
  37          */
  38         private $headerDone = false;
  39
  40         public $redirectTarget;
  41
  42         /**
  43          * Does the current page need to allow being used as a frame?
  44          * If not, X-Frame-Options will be output to forbid it.
  45          *
  46          * @var bool
  47          */
  48         public $allowFrames = false;
  49
  50         /**
  51          * Whether to use the limited header (used during CC license callbacks)
  52          * @var bool
  53          */
  54         private $useShortHeader = false;
  55
  56         /**
  57          * Constructor.
  58          *
  59          * @param $parent WebInstaller
  60          */
  61         public function __construct( WebInstaller $parent ) {
  62                 $this->parent = $parent;
  63         }
  64
  65         public function addHTML( $html ) {
  66                 $this->contents .= $html;
  67                 $this->flush();
  68         }
  69
  70         public function addWikiText( $text ) {
  71                 $this->addHTML( $this->parent->parse( $text ) );
  72         }
  73
  74         public function addHTMLNoFlush( $html ) {
  75                 $this->contents .= $html;
  76         }
  77
  78         public function redirect( $url ) {
  79                 if ( $this->headerDone ) {
  80                         throw new MWException( __METHOD__ . ' called after sending headers' );
  81                 }
  82                 $this->redirectTarget = $url;
  83         }
  84
  85         public function output() {
  86                 $this->flush();
  87                 $this->outputFooter();
  88         }
  89
  90         /**
  91          * Get the raw vector CSS, flipping if needed
  92          * @param $dir String 'ltr' or 'rtl'
  93          * @return String
  94          */
  95         public function getCSS( $dir ) {
  96                 $skinDir = dirname( dirname( dirname( __FILE__ ) ) ) . '/skins';
  97                 $vectorCssFile = "$skinDir/vector/screen.css";
  98                 $configCssFile = "$skinDir/common/config.css";
  99                 $css = '';
 100                 wfSuppressWarnings();
 101                 $vectorCss = file_get_contents( $vectorCssFile );
 102                 $configCss = file_get_contents( $configCssFile );
 103                 wfRestoreWarnings();
 104                 if( !$vectorCss || !$configCss ) {
 105                         $css = "/** Your webserver cannot read $vectorCssFile or $configCssFile, please check file permissions */";
 106                 }
 107
 108                 $css .= str_replace( 'images/', '../skins/vector/images/', $vectorCss ) . "\n" . str_replace( 'images/', '../skins/common/images/', $configCss );
 109                 if( $dir == 'rtl' ) {
 110                         $css = CSSJanus::transform( $css, true );
 111                 }
 112                 return $css;
 113         }
 114
 115         /**
 116          * <link> to index.php?css=foobar for the <head>
 117          * @return String
 118          */
 119         private function getCssUrl( ) {
 120                 return Html::linkedStyle( $_SERVER['PHP_SELF'] . '?css=' . $this->getDir() );
 121         }
 122
 123         public function useShortHeader( $use = true ) {
 124                 $this->useShortHeader = $use;
 125         }
 126
 127         public function allowFrames( $allow = true ) {
 128                 $this->allowFrames = $allow;
 129         }
 130
 131         public function flush() {
 132                 if ( !$this->headerDone ) {
 133                         $this->outputHeader();
 134                 }
 135                 if ( !$this->redirectTarget && strlen( $this->contents ) ) {
 136                         echo $this->contents;
 137                         flush();
 138                         $this->contents = '';
 139                 }
 140         }
 141
 142         /**
 143          * @return string
 144          */
 145         public function getDir() {
 146                 global $wgLang;
 147                 if( !is_object( $wgLang ) || !$wgLang->isRtl() ) {
 148                         return 'ltr';
 149                 } else {
 150                         return 'rtl';
 151                 }
 152         }
 153
 154         /**
 155          * @return string
 156          */
 157         public function getLanguageCode() {
 158                 global $wgLang;
 159                 if( !is_object( $wgLang ) ) {
 160                         return 'en';
 161                 } else {
 162                         return $wgLang->getCode();
 163                 }
 164         }
 165
 166         /**
 167          * @return array
 168          */
 169         public function getHeadAttribs() {
 170                 return array(
 171                         'dir' => $this->getDir(),
 172                         'lang' => $this->getLanguageCode(),
 173                 );
 174         }
 175
 176         /**
 177          * Get whether the header has been output
 178          * @return bool
 179          */
 180         public function headerDone() {
 181                 return $this->headerDone;
 182         }
 183
 184         public function outputHeader() {
 185                 $this->headerDone = true;
 186                 $dbTypes = $this->parent->getDBTypes();
 187
 188                 $this->parent->request->response()->header( 'Content-Type: text/html; charset=utf-8' );
 189                 if (!$this->allowFrames) {
 190                         $this->parent->request->response()->header( 'X-Frame-Options: DENY' );
 191                 }
 192                 if ( $this->redirectTarget ) {
 193                         $this->parent->request->response()->header( 'Location: '.$this->redirectTarget );
 194                         return;
 195                 }
 196
 197                 if ( $this->useShortHeader ) {
 198                         $this->outputShortHeader();
 199                         return;
 200                 }
 201
 202 ?>
 203 <?php echo Html::htmlHeader( $this->getHeadAttribs() ); ?>
 204 <head>
 205         <meta name="robots" content="noindex, nofollow" />
 206         <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
 207         <title><?php $this->outputTitle(); ?></title>
 208         <?php echo Html::linkedStyle( '../skins/common/shared.css' ) . "\n"; ?>
 209         <?php echo $this->getCssUrl() . "\n"; ?>
 210         <?php echo Html::inlineScript(  "var dbTypes = " . Xml::encodeJsVar( $dbTypes ) ) . "\n"; ?>
 211         <?php echo $this->getJQuery() . "\n"; ?>
 212         <?php echo Html::linkedScript( '../skins/common/config.js' ) . "\n"; ?>
 213 </head>
 214
 215 <?php echo Html::openElement( 'body', array( 'class' => $this->getDir() ) ) . "\n"; ?>
 216 <div id="mw-page-base"></div>
 217 <div id="mw-head-base"></div>
 218 <div id="content">
 219 <div id="bodyContent">
 220
 221 <h1><?php $this->outputTitle(); ?></h1>
 222 <?php
 223         }
 224
 225         public function outputFooter() {
 226                 if ( $this->useShortHeader ) {
 227 ?>
 228 </body></html>
 229 <?php
 230                         return;
 231                 }
 232 ?>
 233
 234 </div></div>
 235
 236
 237 <div id="mw-panel">
 238         <div class="portal" id="p-logo">
 239           <a style="background-image: url(../skins/common/images/mediawiki.png);"
 240                 href="http://www.mediawiki.org/"
 241                 title="Main Page"></a>
 242         </div>
 243         <script type="text/javascript"> if (window.isMSIE55) fixalpha(); </script>
 244         <div class="portal"><div class="body">
 245 <?php
 246         echo $this->parent->parse( wfMsgNoTrans( 'config-sidebar' ), true );
 247 ?>
 248         </div></div>
 249 </div>
 250
 251 </body>
 252 </html>
 253 <?php
 254         }
 255
 256         public function outputShortHeader() {
 257 ?>
 258 <?php echo Html::htmlHeader( $this->getHeadAttribs() ); ?>
 259 <head>
 260         <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
 261         <meta name="robots" content="noindex, nofollow" />
 262         <title><?php $this->outputTitle(); ?></title>
 263         <?php echo $this->getCssUrl() . "\n"; ?>
 264         <?php echo $this->getJQuery(); ?>
 265         <?php echo Html::linkedScript( '../skins/common/config.js' ); ?>
 266 </head>
 267
 268 <body style="background-image: none">
 269 <?php
 270         }
 271
 272         public function outputTitle() {
 273                 global $wgVersion;
 274                 echo htmlspecialchars( wfMsg( 'config-title', $wgVersion ) );
 275         }
 276
 277         public function getJQuery() {
 278                 return Html::linkedScript( "../resources/jquery/jquery.js" );
 279         }
 280 }