FlashAirへのアップロード

function onDeviceReady(){
  getFileList("");
  $(document).on("click", "a.dir", function(){
    getFileList(this.text);
  });
  $(document).on("click", "a.file", function(){
    downloadFile(this.text, currentPath);
  });
  $("#doUpload").click(function(){
    navigator.notification.confirm("Are you sure you upload 'upload.jpg'?", confirmCallback, "UPLOAD", "YES,NO");
    function confirmCallback(buttonIndex) {
      switch (buttonIndex) {
        // Dialog closed without tapped any buttons.
        case 0:
          break;
        // "YES" tapped
        case 1:
          uploadFile();
          break;
        // "NO" tapped
        case 2:
          break;
      }
    }
  });
  document.addEventListener("backbutton", onBackKeyDown, false);
  $("#head-left").click(function(){
    onBackKeyDown();
  });
}

// Upload the content.
function uploadFile(){
  var uppath = makePath(".");
  var cgi = "http://flashair/upload.cgi";
  var dt = new Date();
  // The range of years for FAT32 is from 1980 to 2107.
  var year = (dt.getFullYear() - 1980) << 9;
  var month = (dt.getMonth() + 1) << 5;
  var date = dt.getDate();
  var hours = dt.getHours() << 11;
  var minites = dt.getMinutes() << 5;
  var seconds = Math.floor(dt.getSeconds() / 2);
  var timestring = "0x" + (year + month + date).toString(16) + (hours + minites + seconds).toString(16);
  var param = cgi + "?WRITEPROTECT=ON&UPDIR=" + uppath + "&FTIME=" + timestring;
  // GET request upload.cgi parameters.
  $.get(param, function(){
    // Create boundary.
    var boundary = "--------------------FlashAir" + year.toString() + month.toString() + date.toString() + hours.toString() + minites.toString() + seconds.toString);
    var localReq = new XMLHttpRequest();
    var preReader = new FileReader();
    var sufReader = new FileReader();
    var localBuffer, faBuffer;
    // GET request upload file (as ArrayBuffer).
    localReq.open("GET", "img/upload.jpg", true);
    localReq.responseType = "arraybuffer";
    // POST request to FlashAir succeeds.
    var faReqSuccess = function(){
      navigator.notification.alert("Upload complete!", function(){
        // Update the content list.
        getFileList(".");
      }, "UPLOAD", "OK");
    };
    // Suffix loading succeeds.
    var sufReaderSuccess = function(){
      // Connect HTTP Body suffix.
      faBuffer = connectBuffer(faBuffer, sufReader.result);
      var faReq = new XMLHttpRequest();
      // Make a POST request to upload a file to FlashAir.
      faReq.open("POST", cgi, true);
      // Set HTTP Headers.
      faReq.setRequestHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
      faReq.onload = faReqSuccess;
      faReq.send(faBuffer);
    };
    // Prefix loading succeeds.
    var preReaderSuccess = function(){
      // Connect HTTP Body prefix and upload file.
      faBuffer = connectBuffer(preReader.result, localBuffer);
      // HTTP Body suffix
      var suffix = "\r\n" + "--" + boundary + "--";
      sufReader.onload = sufReaderSuccess;
      // Load suffix (as ArrayBuffer).
      sufReader.readAsArrayBuffer(new Blob([suffix]));
    };
    // GET request upload file succeeds.
    var localReqSuccess = function(){
      localBuffer = localReq.response;
      // HTTP Body prefix
      var prefix = "--" + boundary + "\r\n" + "Content-Disposition: form-data; name=\"userfile\"; filename=\"upload.jpg\"\r\n" + "Content-Type: image/peg\r\n\r\n";
      preReader.onload = preReaderSuccess;
      // Load prefix (as ArrayBuffer).
      preReader.readAsArrayBuffer(new Blob([prefix]));
    };
    localReq.onload = localReqSuccess;
    localReq.send(null);
  });
  return false;
}
// Add "addBuffer" to "oriBuffer" (as ArrayBuffer).
function connectBuffer(oriBuffer, addBuffer){
  var uint8Array = new Uint8Array(oriBuffer.byteLength + addBuffer.byteLength);
  uint8Array.set(new Uint8Array(oriBuffer), 0);
  uint8Array.set(new Uint8Array(addBuffer), oriBuffer.byteLength);
  return uint8Array.buffer;
}