Well here is a simple solution for you:

hr.{
	background-color:#fff;
	border:#000 1px dotted;
	border-style: none none dotted;
	color:#fff;
}

Well I did but when I read out objectsid from AD for a user I found a load of weird symbols. It turned out that the data outputted was binary data. So after some digging around to see how to translate the binary data to a human readable SID like S-1-5-21-823795046-756116320-56781596-16683 I got to work to write a PHP script that could do just that.

This is what I came up with:

$suffix ="@sub.mydomain.co.uk";
$base_dn = "dc=sub,dc=mydomain,dc=co,dc=uk";
$server = "127.0.0.1";

$USERNAME = "username";
$PASSWORD = "password";

$USERNAMETOSEARCH = "user to get sid";

$ds = ldap_connect($server);
ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($ds, LDAP_OPT_REFERRALS, 0);
$r = ldap_bind($ds, $USERNAME.$suffix, $PASSWORD);
$sr = ldap_search($ds, $base_dn, "(samaccountname=".$USERNAMETOSEARCH.")");
$entries = ldap_get_entries($ds, $sr);

// All SID's begin with S-
$sid = "S-";
// Convert Bin to Hex and split into byte chunks
$sidinhex = str_split(bin2hex($entries[0]['objectsid'][0]), 2);
// Byte 0 = Revision Level
$sid = $sid.hexdec($sidinhex[0])."-";
// Byte 1-7 = 48 Bit Authority
$sid = $sid.hexdec($sidinhex[6].$sidinhex[5].$sidinhex[4].$sidinhex[3].$sidinhex[2].$sidinhex[1]);
// Byte 8 count of sub authorities - Get number of sub-authorities
$subauths = hexdec($sidinhex[7]);
//Loop through Sub Authorities
for($i = 0; $i < $subauths; $i++) {
	$start = 8 + (4 * $i);
	// X amount of 32Bit (4 Byte) Sub Authorities
	$sid = $sid."-".hexdec($sidinhex[$start+3].$sidinhex[$start+2].$sidinhex[$start+1].$sidinhex[$start]);
}

echo $sid;

Now this is written in PHP but I’m sure this code can be pretty much be translated to any other language.

Now one of the things I wanted to read out was to see if the account was locked or if its password never expired. I couldn’t find these entries in AD but after searching those entries are stored in “useraccountcontrol”. But when I looked it was just a number. How does that number tell you if the account is locked?

http://msdn.microsoft.com/en-us/library/ms680832(VS.85).aspx

On the above link is how that number is generated and once I understood that I got to work on writing a PHP script which translates that number into something more usable. Once I wrote the script I put it up on the Hot Scripts Forum to see if the code I wrote could be improved on and optimised. Here is what they came back with:

$userAccountArray = array(
  'ADS_UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION' => 0,
  'ADS_UF_PASSWORD_EXPIRED' => 0,
  'ADS_UF_DONT_REQUIRE_PREAUTH' => 0,
  'ADS_UF_USE_DES_KEY_ONLY' => 0,
  'ADS_UF_NOT_DELEGATED' => 0,
  'ADS_UF_TRUSTED_FOR_DELEGATION' => 0,
  'ADS_UF_SMARTCARD_REQUIRED' => 0,
  'ADS_UF_MNS_LOGON_ACCOUNT' => 0,
  'ADS_UF_DONT_EXPIRE_PASSWD' => 0,
  'NOT_USED_8000' => 0,
  'NOT_USED_4000' => 0,
  'ADS_UF_SERVER_TRUST_ACCOUNT' => 0,
  'ADS_UF_WORKSTATION_TRUST_ACCOUNT' => 0,
  'ADS_UF_INTERDOMAIN_TRUST_ACCOUNT' => 0,
  'ADS_UF_NORMAL_ACCOUNT' => 0,
  'ADS_UF_TEMP_DUPLICATE_ACCOUNT' => 0,
  'ADS_UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED' => 0,
  'ADS_UF_PASSWD_CANT_CHANGE' => 0,
  'ADS_UF_PASSWD_NOTREQD' => 0,
  'ADS_UF_LOCKOUT' => 0,
  'ADS_UF_HOMEDIR_REQUIRED' => 0,
  'NOT_USED_4' => 0,
  'ADS_UF_ACCOUNTDISABLE' => 0,
  'ADS_UF_SCRIPT' => 0
);

function ADUserAccountControl($val) {
	global $userAccountArray;
	$x = pow(2, count($userAccountArray) - 1);
	foreach($userAccountArray as $k => $v) {
		if(($val - $x) >= 0){
			$userAccountArray[$k] = 1;
			$val -= $x;
		} else {
			$userAccountArray[$k] = 0;
		}
		$x = $x / 2;
	}
}

Simply pass your useraccountcontrol value to the function and read the results out of the array.

JavaScript Code:

function sameHeight(divs) // Bring in an array of your divs
{
var highest = 0;
var heighttu = 0;
for(i = 0; i < divs.length; i++) // Loop through the divs
{
// Check to see if this div is the highest?
if(document.getElementById(divs[i]).offsetHeight > highest)
{
// Yes its the highest so set the highest value to this div's height
highest = document.getElementById(divs[i]).offsetHeight;
}
}
// Loop through divs and set their hieght all the same
for(i = 0; i < divs.length; i++)
{
document.getElementById(divs[i]).style.height = highest+"px";
}
// now get offset hieght again and we may found we have gone higher this is because of padding
if(document.getElementById(divs[0]).offsetHeight > highest)
{
// correct the height
highest = highest - (document.getElementById(divs[0]).offsetHeight - highest);
// Correct divs
for(i = 0; i < divs.length; i++)
{
document.getElementById(divs[i]).style.height = highest+"px";
}
}
}

First thing I did was look online for answers and sure enough there were solutions but looking at them they seemed over complicated so I decided to write my own solution.

Javascript Code:

Update at: http://l3rady.com/2008/08/14/javascript-same-height-divs-update/

Simply pass an array of your divs to the function. Easy peasy….

Just an extra word of warning… Be aware of using padding on the blocks you pass to this function. If the paddings are different in each block then they may not end up being the same height. Although you could modify the function to check for the use of padding and alter the heights accordingly.

Well yesterday at work I was playing around with SNMP and after finding a site with W2K MIBS I found lots of info you can pull from the server. Now I was already familiar with SNMP in PHP thanks to their documentation on their site. So using their snmpwalk function I was able to pull the relevant data to get HDD usage info.

$names = snmpwalk($row['ip'], "public", '.1.3.6.1.2.1.25.2.3.1.3');
$used = snmpwalk($row['ip'], "public", '.1.3.6.1.2.1.25.2.3.1.6');
$total = snmpwalk($row['ip'], "public", '.1.3.6.1.2.1.25.2.3.1.5');
$alloc = snmpwalk($row['ip'], "public", '.1.3.6.1.2.1.25.2.3.1.4');

Now that would give me an array of drive names, space used on those drives, total space available on those drives and the allocation units. Now the allocation units I didn’t realize I needed as I thought the numbers given in used and total were just measured in bytes but they aren’t. The numbers in used and total are how many blocks of allocation size (if that makes sense). So to get the true byte value from used and total you need to multiply them by the allocation size number.

25599569 * 4096 = 104855834624B = 97.65GB

So there you have it. Now you know how to get HDD usage from your server using PHP and SNMP.

PHP File Upload Progress Bar

There is another solution out there but once again it involves making server side changes which hacks php and adds the additional functions to track the upload progress of a file.

The above hack for PHP can be found at http://pecl.php.net/package/uploadprogress. There isn’t much documentation out there for it but if you do a Google search you will find one or two examples.

The above hack I’m thinking about putting it in my module so that those that have the modified php will be able to run my uploader with the progress bar but those without would not get the upload progress bar. The thing in to build my module to use this hack I need a server that is running the hacked version of php. Thing is I’m stuck with a shared hosting account and I don’t have access to modify php. So if there is anyone out there that can lend me some space for a short time and is running the above hack please contact me so I can’t continue building my file uploader script

Well anyway because I’ve been doing a lot of Ajax and JavaScript coding for where I work it had me thinking. If you could get Ajax to work on any webhost with only putting one line of code on their site? Well sure enough you can. I did a bit of testing there and then and it worked 100%. I couldn’t believe it. Because with JavaScript you can literally change the whole look and feel of a webpage, if you think hard enough you can see how this can be very dangerous to people’s websites. One thing that comes straight to mind is that you can use this one line of code to turn a whole page into a login page look-a-like (phishing) I now see why many public pages don’t allow JavaScript. E.G. MySpace.