gistfile1.js

//File uploads
    app.post('/upload', function(req, res)
    {
      new formidable.IncomingForm().parse(req, function(err, fields, files) 
      { 
        //handle errors
        if(err){
          res.send("Error");
          fileLogger.error(err);
          return;
        }
        
        //check if file was sended correctly
        if(!files["file"]){
          res.send("Error");
          fileLogger.error("File was not uploaded correctly");
          return;
        }
        
        //check if file was sended correctly
        if(!fields["padid"]){
          res.send("Error");
          fileLogger.error("No padid given");
          return;
        }
        
        fileLogger.info("fileupload recieved for pad '"+ fields["padid"] + "', called '" + files["file"].name+ "'");

        var padid = fields["padid"];
        
        async.series([
          //create the files directory
          function(callback){
            fs.mkdir("../var/files", function(err){          
              if(err && err.code != 'EEXIST'){
                callback(err)
              }
              else {
                callback();
              }
            });
          }, 
          //create files directory for this pad
          function(callback){
            fs.mkdir("../var/files/" + padid, function(err){          
              if(err && err.code != 'EEXIST'){
                callback(err)
              }
              else {
                callback();
              }
            });
          }, 
          //move the file
          function(callback){
            fs.rename(files["file"].path, "../var/files/" + padid + "/" + files["file"].name, callback);
          }, 
        ], function(err){
          //handle error
          if(err){
            fileLogger.error(err);  
            res.end("Error");
            return;
          } 
        
          res.end("ok");
          
        });
      });
    });