//***************************************************************************************************************
//
//   Name: upload.js
//
//***************************************************************************************************************
var Step_1 = "Step 1: Uploading File";
var Step_2 = "Step 2: Analyzing File";
var Step_3 = "Step 3: Checking for Virus";
var File_Null = "Please Choose A File To Upload.";
var Initializing = "Initializing...";
var Upload_In_Progress = "Upload In Progress";
var Error_status_code = "Error: returned status code";
var error = "Error";
var day = "Day";
var hor = "Hour";
var min = "Min";
var sec = "Sec";
var Error_No_AJAX = "Error: Your browser does not support AJAX";
var upload_range = 1;
var total_upload_size;
var get_status_speed;
var get_status_url;
var get_data_loop = true;
var seconds = 0;
var minutes = 0;
var hours = 0;
var info_width = 0;
var info_bytes = 0;
var info_time_width = 500;
var info_time_bytes = 15;
var cedric_hold = true;
var num_reads = 0;
var total_bytes = 0;

// Disable Web Page
function disable_webpage()
{
        document.getElementById("overLayer").style.top = '0px';
        document.getElementById("overLayer").style.height = document.body.scrollHeight+50;
        document.getElementById("overLayer").style.display = 'block';
	document.getElementById("check_box").style.display='none';
	document.getElementById("upload_box").style.display='none';
	document.getElementById("error_box").style.display='none';
	document.getElementById("upload_bar").style.display='none';
	document.getElementById("message_box").style.display='none';
	document.getElementById("scan_box").style.display='none';
        document.getElementById("xbody").style.overflow = 'hidden';
}

function enable_webpage()
{
        document.getElementById("overLayer").style.height = '0px';
        document.getElementById("overLayer").style.display = 'none';
        document.getElementById("xbody").style.overflow = 'auto';
	iniFilePage();
}

function step_1()
{
	disable_webpage();
        document.getElementById("step").innerHTML = Step_1;
	document.getElementById("upload_box").style.display='block';
	document.getElementById("upload_bar").style.display='block';
	document.getElementById("progress_bar").style.display='block';
}

function step_2()
{
	disable_webpage();
	document.getElementById("upload_status").style.width = '0px'
        document.getElementById("step").innerHTML = Step_2;
	document.getElementById("check_box").style.display='block';
	document.getElementById("upload_bar").style.display='block';
	document.getElementById("progress_bar").style.display='block';
}

function step_3()
{
	disable_webpage();
	document.getElementById("upload_status").style.width = '0px';
        document.getElementById("step").innerHTML = Step_3;
	document.getElementById("scan_box").style.display='block';
	document.getElementById("upload_bar").style.display='block';
	document.getElementById("progress_bar").style.display='block';
}

function error_box(msg)
{
	disable_webpage();
	document.getElementById("error_box").style.display='block';
	document.getElementById('step').innerHTML = error;
	document.getElementById('progress_info').innerHTML = msg;
}

function message_box()
{
        disable_webpage();
        document.getElementById("message_box").style.display='block';
        document.getElementById('step').innerHTML = '';
        document.getElementById('progress_info').innerHTML = '';
}

function step_finish()
{
	enable_webpage();
}

function convertBytes (bytes)
 {
  if(bytes > (1024*1024*1024))
  {
   res=(bytes/(1024*1024*1024)); // g
   unit="GB";
  }
  else if(bytes > (1024*1024))
  {
   res=(bytes/(1024*1024)); // m
   unit="MB";
  }
  else if(bytes > (1024))
  {
   res=(bytes/(1024)); // k
  unit="KB";
  }
  else
  {
   res=bytes;
   unit="Byte";
  }
  return getFormatData(res, unit);
 }

function convertSeconds (seconds)
 {
  if(seconds > (60*60*24))
   {
    restime=(seconds/(60*60*24)); // d
    unittime=day;
   }
  else if(seconds > (60*60))
   {
    restime=(seconds/(60*60)); // h
    unittime=hor;
   }
  else if(seconds > (60))
   {
    restime=(seconds/(60)); // m
    unittime=min;
   }
  else
   {
    restime=seconds;
    unittime=sec;
   }
  return getFormatData(restime, unittime);
 }

function getFormatData (num, unit)
 {
  var ret=new String(num);
  var re=/^(\d+)(\.\d)?/;
  var mc=re.exec(ret);
  var rt=new String();
  if(mc!=null)
   {
    if(mc[1]!=null)
     rt+=mc[1];
    if(mc[2]!=null)
     rt+=mc[2];
    return rt+" "+unit;
   }
  else
  return num+" "+unit;
 }

// Make sure the user selected at least one file
function checkNullFileCount(){
  	var null_file_count = 0;
  	
	if(document.form_upload.elements['file'].value == ""){ null_file_count++; }
  	
  	if(null_file_count == upload_range){
		alert(File_Null);
		return true;
  	}
  	else{ return false; }
}

// Handle user pressing 'Enter' in the upload slots
function handleKey(event){
        if(document.all){ if(window.event.keyCode == 13){ return false; } }
        else{ if(event && event.which == 13){ return false; } }
}

// Submit the upload form
function uploadFiles(){
	if(checkNullFileCount()){ return false; }

	var total_uploads = 0;
	
	if(document.form_upload.elements['file'].value != ""){ total_uploads++; }
	
	document.form_upload.submit();
	document.getElementById('upload_button').disabled = true;
	
	iniProgressRequest();
	getElapsedTime();
	
	document.form_upload.elements['file'].disabled = true; 
        step_1();
}

// Reset the file upload page 
function resetForm(){ location.href = self.location; }

// Hide the progress bar
function hideProgressBar(){ document.getElementById('progress_bar').style.display = "none"; }

// Initialize the file upload page
function iniFilePage(){
	resetProgressBar();
	
	document.form_upload.elements['file'].disabled = false;
	document.form_upload.elements['file'].value = ""; 
	document.getElementById('rescan_button').disabled =false; 
	document.getElementById('progress_info').innerHTML = "";
	document.getElementById('upload_button').disabled = false;
	document.getElementById('progress_bar').style.display = "none";
	document.form_upload.reset();
}

// Reset the progress bar
function resetProgressBar(){
	get_data_loop = true;
        seconds = 0;
        minutes = 0;
        hours = 0;
        info_width = 0;
        info_bytes = 0;
        cedric_hold = true;
	
	document.getElementById('step').innerHTML = "";
	document.getElementById('upload_status').style.width = '0px';
	document.getElementById('percent').innerHTML = '0%';
        document.getElementById('current').innerHTML = 0;
        document.getElementById('total_kbytes').innerHTML = '';
        document.getElementById('time').innerHTML = 0;
        document.getElementById('remain').innerHTML = 0;
        document.getElementById('speed').innerHTML = 0;
	document.getElementById('file_name').innerHTML = '';
	document.getElementById('file_size').innerHTML = '';
	document.getElementById('file_type').innerHTML = '';
	document.getElementById('file_md5').innerHTML = '';
	document.getElementById('file_sha1').innerHTML = '';
	document.getElementById('compress_file').innerHTML = '';
	document.getElementById('progress_info').innerHTML = '';
	document.getElementById('scan_position').innerHTML = '';
	document.getElementById('scan_scanner').innerHTML = '';
	document.getElementById('scan_last_scan').innerHTML = '';
	document.getElementById('scan_suspicious_degree').innerHTML = '';
	document.getElementById('scan_pic').src= '/images/av/null.gif';
}

// Stop the upload
function stopUpload(){
	try{ window.stop(); }
	catch(e){
		try{ document.execCommand('Stop'); }
		catch(e){} 
	}
}


// Make the progress bar smooth
function smoothCedricStatus(){
	if(info_width < progress_bar_width && !cedric_hold){
		info_width++;
		document.getElementById('upload_status').style.width = info_width + 'px';
	}
	
	if(get_data_loop){ self.setTimeout("smoothCedricStatus()", info_time_width); }
}

// Make the bytes uploaded smooth
function smoothCedricBytes(){
	if(info_bytes < total_upload_size && !cedric_hold){
		info_bytes++;
		document.getElementById('current').innerHTML = convertBytes(info_bytes * 1024);
		if (total_bytes < convertBytes(info_bytes * 1024))
			{document.getElementById('current').innerHTML = total_bytes;}
	}
	
	if(get_data_loop){ self.setTimeout("smoothCedricBytes()", info_time_bytes); }
}


// Update the Cedric progress bar values
function updateCedricStatus(stats, bytes){
	//METHOD 1 - Deviation
	/*******************************************************************************
	var deviant_bytes = bytes + (total_upload_size / 10); //Add 2.5% deviation
	
	if(info_bytes > deviant_bytes){ cedric_hold = true; }
	else{ 
		cedric_hold = false;
		
		if(stats > info_width){ info_width = stats; }
		if(bytes > info_bytes){ info_bytes = bytes; }
	}
	********************************************************************************/
	
	//METHOD 2 - Hold on the first 'x' reads then auto-correct "jump"
	/*******************************************************************************
	cedric_hold = false;
	
	if(num_reads > 7){
		info_width = stats;
		info_bytes = bytes;
	}
	else{
		if(stats > info_width){ info_width = stats; }
		else{ cedric_hold = true; }
	
		if(bytes > info_bytes){ info_bytes = bytes; }
		else{ cedric_hold = true; }
		
		num_reads++;
	}
	********************************************************************************/
	
	//METHOD 3 - Hold until actual info catches up
	/*******************************************************************************/
	cedric_hold = false;
	
	if(stats > info_width){ info_width = stats; }
	else{ cedric_hold = true; }
	
	if(bytes > info_bytes){ info_bytes = bytes; }
	else{ cedric_hold = true; }
	/********************************************************************************/
	
	//METHOD 4 - Auto-correct "jump" on every read
/*
	cedric_hold = false;
	info_width = stats;
	info_bytes = bytes;
*/
}

// Get the progress of the upload
function getProgressStatus(){
	var jsel = document.createElement('SCRIPT');
	
	jsel.type = 'text/javascript';
	jsel.src = get_status_url + "&rnd_id=" + Math.random();
	
	document.body.appendChild(jsel);
	
	if(get_data_loop){ self.setTimeout("getProgressStatus()", get_status_speed); }
}

// Calculate the time spent uploading
function getElapsedTime(){
	seconds++;
    	
    	if(seconds == 60){
    		seconds = 0;
    		minutes++;
    	}
    	
    	if(minutes == 60){
    		minutes = 0;
    		hours++;
    	}
    	
    	var hr = "" + ((hours < 10) ? "0" : "") + hours;
    	var min = "" + ((minutes < 10) ? "0" : "") + minutes;
    	var sec = "" + ((seconds < 10) ? "0" : "") + seconds;
    	
    	document.getElementById('time').innerHTML = hr + ":" + min + ":" + sec;
    	
    	if(get_data_loop){ self.setTimeout("getElapsedTime()", 1000); }
}

// Create the AJAX request
function createRequestObject(){
	var req = false;
  	
	if(window.XMLHttpRequest){
		req = new XMLHttpRequest();
		
		if(req.overrideMimeType){ req.overrideMimeType('text/xml'); }
	} 
	else if(window.ActiveXObject){
		try{ req = new ActiveXObject("Msxml2.XMLHTTP"); }
		catch(e){
			try{ req = new ActiveXObject("Microsoft.XMLHTTP"); }
			catch(e){}
		}
	}
	
	if(!req){
		document.getElementById('progress_info').innerHTML = Error_No_AJAX;
		return false;
	}
	else{ return req; }	
}

// Initialize the progress bar
function iniProgressRequest(){
	var req = false;
	req = createRequestObject();
	
	if(req){
		document.getElementById('progress_info').innerHTML = Initializing;
		req.open("GET", path_to_ini_status_script + "&rnd_id=" + Math.random(), true);
		req.onreadystatechange = function(){ iniProgressResponse(req); }; 
		req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
		req.send(null);
	}
}

// Initialize the progress bar
function iniProgressResponse(req){
	if(req.readyState == 4){
		if(req.status == 200){
			var xml = req.responseXML;
			
			if(xml.getElementsByTagName('error_status').item(0).firstChild.nodeValue == 1){
				error_box(xml.getElementsByTagName('error_msg').item(0).firstChild.nodeValue);
				document.getElementById('progress_info').innerHTML = xml.getElementsByTagName('error_msg').item(0).firstChild.nodeValue;
				if(xml.getElementsByTagName('stop_upload').item(0).firstChild.nodeValue == 1){ stopUpload(); }
			}
			else{
				get_status_speed = xml.getElementsByTagName('get_data_speed').item(0).firstChild.nodeValue;
				get_data_loop = true;
				
//				document.getElementById('upload_div').style.display = "none";
				
				get_status_url = "/get_status.php?temp_dir_sid=" + xml.getElementsByTagName('temp_dir_sid').item(0).firstChild.nodeValue + "&start_time=" + xml.getElementsByTagName('start_time').item(0).firstChild.nodeValue + "&total_upload_size=" + xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue + "&cedric_progress_bar=" + xml.getElementsByTagName('cedric_progress_bar').item(0).firstChild.nodeValue;
					
				document.getElementById('progress_bar').style.display = "";
				total_bytes =  convertBytes(Math.round(Number(xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue)));
				document.getElementById('total_kbytes').innerHTML = convertBytes(Math.round(Number(xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue)));
				document.getElementById('progress_info').innerHTML = Upload_In_Progress;
				
				getProgressStatus();
				
				if(xml.getElementsByTagName('cedric_progress_bar').item(0).firstChild.nodeValue == 1){
					total_upload_size = xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue;
					smoothCedricBytes();
					smoothCedricStatus();
				}
			}
		}
		else{ 
			document.getElementById('progress_info').innerHTML = Error_status_code + " " + req.status + " " + req.statusText; 
			//stopUpload();
		}
	}
}