快速/連接窗體事件監聽器沒有觸發

我最近將環境升級到Node v0.6.3，並且一些文件上傳功能在工作停止前正常工作。我一個上傳文件的形式向以下頁面：快速/連接窗體事件監聽器沒有觸發

var fs = require('fs'), 
    client = require('../app'), 
    exec = require('child_process').exec, 
    socket = require('../socket') 

var supported = [ 'image/jpeg', 
        'image/pjpeg', 
        'image/bmp', 
        'image/gif', 
        'image/tiff', 
        'image/png'] 

var maxSize = 204800; 

module.exports = function(req, res) { 
    console.log(JSON.stringify(req.form)); 
    var tmpPath = ''; 
    req.form.on('fileBegin', function(err, fileInfo) { 
    console.log('upload file begin') 
    if (fileInfo.path) {tmpPath = fileInfo.path}; 
    socket.emit('attachment_upload_started', req.query.user, {friend: req.query.friend}, []); 
    }); 

    req.form.on('progress', function(bytesReceived, bytesExpected) { 
    var percent = (bytesReceived/bytesExpected * 100) | 0; 
    socket.emit('attachment_progress', req.query.user, {progress: percent, friend: req.query.friend}, []);  
     var child = exec('file --mime-type ' + tmpPath, function (err, stdout, stderr) { 
      var mimetype = stdout.substring(stdout.lastIndexOf(':') + 2, stdout.lastIndexOf('\n')); 
      if (!err && mimetype && supported.indexOf(mimetype)==-1 && mimetype!='Can\'t read SAT') { 
      socket.emit('attachment_error', req.query.user, {type: 'format', friend: req.query.friend}, []); 
      req.connection.destroy(); 
      req.connection.resume = function(){}; 
      console.log(mimetype) 
      console.log(err); 
      } 

      if (bytesExpected > maxSize) { 
      socket.emit('attachment_error', req.query.user, {type: 'size', friend: req.query.friend}, []); 
      req.connection.destroy(); 
      req.connection.resume = function(){} 
      } 
     }); 
     }); 

    req.form.complete(function(err, fields, files){ 
    console.log('form complete'); 
    if (!err) { 
     if (supported.indexOf(files.upload.mime)==-1) { 
     console.log(files.upload.mime); 
     socket.emit('attachment_error', req.query.user, {type: 'format', friend: req.query.friend}, []); 
     } 
     else { 
     socket.emit('attachment_complete', req.query.user, {friend: req.query.friend, file: files.upload}, []); 
     } 
    } 
    else { 
     console.log('err'); 
    } 
    res.redirect('/iattachment?user='+req.query.user+'&friend='+req.query.friend); 
    }); 
}

的文件確實是讓我的/ tmp目錄，但沒有req.form.complete內的代碼，或req.form.on （'progress'），req.form.on（'fileBegin'）監聽器被執行。任何幫助，將不勝感激！

來源

2011-12-02 Original Rockers