gistfile1.js

function( request, response ) {
  
  /* Determine Encoding */
  var isGzip = /gzip/.test( request.headers['accept-encoding'] ) ? true : false;

  /* Extract Scope */
  var sandbox = /\.+(.+)\.sb+/.exec( request.headers.host );
  
  if ( sandbox !== null ) {
    var scope = sandbox[1];
  } else {
    var scope = config.defaults.scope;
  }

  /* Query String Parsing */  
  var itemStack = request.url.split( '%7C' );

  /* Extract header piece */
  var fileStack = []
  if ( itemStack.length > 1 ) {
    /* Multi */
    var header = n.u.arrayReset( itemStack[0].split( '/' ) );
    var skin = header[0];
    delete itemStack[0];
    fileStack = n.u.arrayReset( itemStack );
  } else {
    /* Single */
    var pieces = n.u.arrayReset( itemStack[0].split( '/' ) );
    var skin = pieces[0];
    delete pieces[0];
    if ( n.u.isNumber( pieces[1] ) ) { delete pieces[1]; }
    fileStack[0] = n.u.arrayReset( pieces ).join( '/' );
  }
  
  /* Check Cache */
  var cacheString = escape( escape( request.url ) );

  if ( cacheData = getCache( scope, cacheString ) ) {
    n.sys.puts( 'CACHE' );
    sendResponse( response, cacheData, true );
    return false;
  } else {
    /* Verify requested file extensions (should be .css) */
    for ( i in fileStack ) {
      if ( n.path.extname( fileStack[i] ) != '.css' ) {
        delete fileStack[i];
      }
    }
    fileStack = n.u.arrayReset( fileStack );
    
    if ( !fileStack.length ) {
      //response.sendHeader( 404 );
      response.close();
      return false;
    }
    n.sys.puts( 'LIVE' );
    var targetSkin = config.paths.repository;
    targetSkin = targetSkin.replace( /\[SCOPE\]/, scope );
    targetSkin = targetSkin.replace( /\[SKIN\]/, skin );
  
    n.path.exists( targetSkin, function( exists ) {
    
      /* Blow out if incorrect skin */
      if ( !exists ) {
        n.sys.puts( 'Invalid skin: ' + skin );
        response.sendHeader( 404 );
        response.close();
        return false;
      }
    
      var dataStack = []
      var fileCount = fileStack.length;
      var fileTarget;
    
      var rawSize = 0;
      var compressedSize = 0;
    
      /* Read Files */
      for ( i in fileStack ) {
      
        var pathPieces = fileStack[i].split( '/' );
      
        fileTarget = n.path.join( targetSkin, pathPieces.join( '/' ) );
      
        ( function ( _target ) {
          n.path.exists( fileTarget, function( exists ) {       
        
            if ( !exists ) {
              n.sys.puts( 'Invalid file: ' + n.path.basename( _target ) );
              response.sendHeader( 404 );
              response.close();
              return false;
            }
      
            n.fs.readFile( _target, function( err, data ) {

              /* Parse SKIN tags */
              data = data.replace( /\[SKIN\]/g, skin );
              /* Parse SCOPE tags */
              data = data.replace( /\[SCOPE\]/g, ( skin == config.defaults.scope ? '' : scope + '.sb.' ) );
              /* Compress */
              data = data.replace( /(\/\*.*\*\/)|(\n|\r)+|\t*/g, '' );
              data = data.replace( /\s{2,}/g, ' ' );
              data = data.replace( /(\s)*:(\s)*/g, ':' );
              data = data.replace( /(\s)+\./g, ' .' );
              data = data.replace( /(\s|\n|\r)*\{(\s|\n|\r)*/g, '{' );
              data = data.replace( /(\s|\n|\r)*\}(\s|\n|\r)*/g, '}' );
              data = data.replace( /;(\s)+/g, ';' );
              data = data.replace( /,(\s)+/g, ',' );
              data = data.replace( /(\s)+!/g, '!' );

              data = '/* --- ' + n.path.basename( _target ) + ' --- */\n' + data;
            
              dataStack.push( data );
            
              fileCount--;
            
              if ( fileCount == 0 ) {
                
                var finalData = copyright + dataStack.join( '\n' );
                
                setCache( scope, cacheString, finalData );
                sendResponse( response, finalData, isGzip );
                return false;
              }
            } );
          } );
        } )( fileTarget );
      }
    } );
  }

}