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l0ve2hat3

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    ASCII HEX decode?

    in PHP Coding Help

    Posted

    this is a comment on http://php.net/manual/en/function.hash-hmac.php

     

    HOTP Algorithm that works according to the RCF http://tools.ietf.org/html/draft-mraihi-oath-hmac-otp-04
The test cases from the RCF document the ASCII string as "123456787901234567890".
But the hex decoded to a string is "12345678901234567890".
Secret="12345678901234567890";
Count:
0 755224
1 287082
<?php
function oath_hotp($key,$counter) {

   // Convert to padded binary string
   $data = pack ('C*', $counter);
   $data = str_pad($data,8,chr(0),STR_PAD_LEFT);

   // HMAC
   return hash_hmac('sha1',$data,$key);
}

function oath_truncate($hash, $length = 6) {

   // Convert to dec
   foreach(str_split($hash,2) as $hex) {
      $hmac_result[]=hexdec($hex);
   }

   // Find offset
   $offset = $hmac_result[19] & 0xf;

   // Algorithm from RFC
   return (
         (($hmac_result[$offset+0] & 0x7f) << 24 ) |
         (($hmac_result[$offset+1] & 0xff) << 16 ) |
         (($hmac_result[$offset+2] & 0xff) << 8 ) |
         ($hmac_result[$offset+3] & 0xff)
         ) % pow(10,$length);
}

print "<pre>";
print "Compare results with:"
print " http://tools.ietf.org/html/draft-mraihi-oath-hmac-otp-04\n";
print "Count\tHash\t\t\t\t\t\tPin\n";
for($i=0;$i<10;$i++)
   print $i."\t".($a=oath_hotp("12345678901234567890",$i))
   print "\t".oath_truncate($a)."\n";

                                                                     

    How do they get "123456787901234567890" from "12345678901234567890"??

    for loop strtotime

    in PHP Coding Help

    Posted 

    <?php
$collection_date=1258434000;
$closing_date=1273172751;
for($date_posted=$collection_date;$date_posted<$closing_date;$date_posted=strtotime(date('m/d/Y',$date_posted)." +1 day")){
    echo date('m/d/y',$date_posted)."<br>";
}
?>

    OUTPUT

    11/17/09
11/18/09
11/19/09
11/20/09
11/21/09
11/22/09
11/23/09
11/24/09
11/25/09
11/26/09
11/27/09
11/28/09
11/29/09
11/30/09
12/01/09
12/02/09 etc...

     

    WHY IS IT SKIPPING THE 31st??

     

     

    php torrenting

    in Application Design

    Posted 

    <?php

$data=file_get_contents("http://torrents.thepiratebay.org/5403603/Wicked_Cool_PHP_Real-World_Scripts_That_Solve_Difficult_Problems.5403603.TPB.torrent");
$fh=fopen("torrent.torrent","w");
fwrite($fh,$data);
fclose($fh);

?>

    Image resizing without distorting the image

    in PHP Coding Help

    Posted

    This is what I use:

     

    function resize_image($sourcefile, $destfile, $fw, $fh,$jpegquality = 100){
    if(!file_exists($sourcefile))die("Cannot Read sourcefile: ".$sourcefile);
//determine type, height, width
list($ow, $oh, $from_type) = getimagesize($sourcefile)  or die('3');
switch($from_type){
case 1: // GIF
	$srcImage = imageCreateFromGif($sourcefile);
	break;
case 2: // JPG
	$srcImage = imageCreateFromJpeg($sourcefile) or die('1');
	break;
case 3: // PNG
	$srcImage = imageCreateFromPng($sourcefile);
	break;
default: // any other format
	return FALSE;
	break;
}
//determine dimensions for full size
if($fw>$ow)$fw=$ow;
$tempw = $fw;
$temph = number_format((($oh*$fw)/$ow), 0);
if($temph > $fh && $fh > 0){
   $tempw = number_format((($ow*$fh)/$oh), 0);
   $temph = $fh;
}
//create the resized image
$tempImage = imageCreateTrueColor($tempw, $temph);
imagecopyresampled($tempImage, $srcImage, 0, 0, 0, 0, $tempw, $temph, $ow, $oh);
//grab the resized images blob
imageJpeg($tempImage, $destfile, $jpegquality);
$imageblob=file_get_contents($destfile);
//destroy file
unlink($destfile);
    return $imageblob;
}

    Probability.

    in PHP Coding Help

    Posted

    I like oni-kun's function but here's another idea

     

    <?php

function adImage(){

$adimgLink[0] = 'template/template_files/ad_images/adhere.jpg';
$probability[0]=20;

$adimgLink[1] = 'template/template_files/ad_images/adhere1.jpg';
$probability[1]=80;


for($i=0;$i<count($adimgLink);$i++){

    for($b=0;$b<$probability[$i];$b++)$ads[]=$adimgLink[$i];

}

$noAds = (count($ads)-1);
$randAd = rand(0,$noAds);
echo '<img src="'.$ads[$randAd].'" />';


}


?>

    echo out session info

    in PHP Coding Help

    Posted

    try this:

     

    $data=array_merge($user,$meta_data);
session_store($data);

     

    
<?php
//ini_set("display_errors","1");
//ERROR_REPORTING(E_ALL);
function my_error_handler($errno, $errstr, $errfile, $errline, array $errcontext = array()) {
    die($errstr);
}
set_error_handler('my_error_handler');

session_start();
$con = mysql_connect("localhost", "uname", "pw") or trigger_error('Could not connect: ' . mysql_error());
mysql_select_db("DBName", $con) or trigger_error(mysql_error());

class EmptyCredentialsException extends Exception {}
class InvalidCredentialsException extends Exception {}

// Same checking stuff all over again.
function clean($value, $db = null) {
    $value = strip_tags($value);
    $value = htmlentities($value);
    if(function_exists('mysql_real_escape_string') && mysql_real_escape_string($value, $db) !== FALSE)
    return mysql_real_escape_string($value, $db);
else
    return addslashes($value);
}

function login($username, $password, $db = null) {
    if (empty($username) || empty($password)) {
        throw new EmptyCredentialsException();
    }

    $username = clean($username, $db);
    $pwid = clean($password, $db);

    $pwid = intval($pwid);
    $query = "SELECT name, username,user_id FROM roster_March2010 WHERE pwid = MD5('$pwid') AND username = '$username'";
    $result = mysql_query($query, $db);
    if ($result && mysql_num_rows($result)) {
        $user = mysql_fetch_assoc($result);
        user_update(array('login_timestamp' => time()), $username, $db);

        session_regenerate_id();

        $meta_data = array('ip' => $_SERVER['REMOTE_ADDR'], 'browser' => $_SEVER['HTTP_USER_AGENT']);
        $data=array_merge($user,$meta_data);
        session_store($data);
        return true;
    }

    throw new InvalidCredentialsException();
}

function user_update($data, $username, $db = null) {
    $query = 'UPDATE roster_March2010 SET ';
    $data = array_map('user_update_callback', $data, array_keys($data));
    $query = $query . implode(', ', $data);
    $query = "$query WHERE username = '$username'";
    $result = mysql_query($query, $db) or trigger_error(mysql_error());
    return $result && mysql_affected_rows($result);
}

function user_update_callback($value, $key) {
    return "$key = '{clean($value)}'";
}

function session_is_auth() {
    return (isset($_SESSION['ip']) && isset($_SESSION['browser'])) &&
           (($_SESSION['ip'] === $_SERVER['REMOTE_ADDR']) && ($_SESSION['browser'] === $_SERVER['HTTP_USER_AGENT']));
}

function session_store($data) {
    $_SESSION = array_merge($_SESSION, $data);
    print_r($_SESSION);
}


if (isset($_POST['submit'])) {
    try {
       login($_POST['username'], $_POST['pwid'],$con);
    } catch (EmptyCredentialsException $e) {
        echo "<h2 class='fail'>Please fill in both your username and password to access your exam results.<br />",
             "<br >You will be redirected back to the login screen in five seconds.</h2>";
        echo "<meta http-equiv='refresh' content='5; url=StudentLogin.php'>";
        exit;
    } catch (InvalidCredentialsException $e) {
        echo "<h2 class='fail'>You have entered a username or password that does not match our database records.",
             " please try again.<br><br>You will be redirected back to the login screen in five seconds.</h2> ";
        echo "<meta http-equiv='refresh' content='5; url=StudentLogin.php'>";
        exit();
    }
}

// Start a session. If not logged in will be redirected back to login screen.
if (!session_is_auth()) {
    header("Location:StudentLogin.php");
    exit;
}

echo "<table id='header'><tr><td align='middle'><div id='welcome'><h3>Welcome! You are now logged in " . $_SESSION['name'] . "</h3></td></tr>";

echo "<tr><td><a class='logout' href='LogoutStudent.php'>Logout</a></td></tr></table>";


?>

    Call PHP function with input type=image

    in PHP Coding Help

    Posted

    This should work...

     

    <?php  
if (isset($_POST['submit'])) {
   include('includes/dbconnect.php');
   mysql_query ("INSERT INTO mylist VALUES ('','1','12345','')");
   // redirect to avoid refresh adding duplicate entries
   header('Location: test.php');  
}
?>

<html>
<body>

<form name="form1" action="<?php $php_self ?>" method="post">
<input type="image" name="submit" value="submit" onclick="document.form1.submit();" src="images/mylist.jpg" />
</form>

</body>
</html>

    exim forward ALL emails

    in Linux

    Posted

    Just for future reference... heres the answer:

     

    I copied the contents from /etc/cpanel_exim_system_filter and created /etc/cpanel_exim_system_filter_new but I added this at the bottom of the /etc/cpanel_exim_system_filter_new file:

     

    #Incoming/Outgoing Email Archiving
if ("$h_to:, $h_cc:, $h_bcc" contains "YOURDOMAIN.com")
then
  unseen deliver "incoming@YOURDOMAIN.com"
endif

if $sender_address_domain is YOURDOMAIN.com
then
  unseen deliver "outgoing@YOURDOMAIN.com"
#endif

     

    Then I went into the exim configuration in WHM and changed the filter file path from /etc/cpanel_exim_system_filter to /etc/cpanel_exim_system_filter_new

     

    I hope this helps someone else...

    exim forward ALL emails

    in Linux

    Posted

    I need a way to forward EVERY email sent and received from my server to an email address.  I know i can do this using exim filter but i dont really know how.

     

    I also need it to forward if the user was CCed or BCCed.

     

    So all incoming mail forwards to incoming@emailserver.com and all outgoing forwards to outgoing@emailserver.com

     

    SETUP:

    cPanel 11.25.0-R43473 - WHM 11.25.0 - X 3.9

    CENTOS 5.4 i686 standard on host

     

     

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