Checking username/password outside of Vanilla (varbinary issue possibly)

jross

I wrote a private message script where I'm using the usernames/password from vanilla.

It worked great - I could do a md5 convert with the stored password - but it appears that now the password is stored as varbinary - it messed up my script.

Does anyone have a script to verify user/pass using the LUM_User?

Mark

Vanilla 1 does it with the library/People/People.Class.PasswordHash.php file. The specific function you're looking for is here:

http://code.google.com/p/lussumo-vanilla/source/browse/trunk/src/library/People/People.Class.PasswordHash.php#280

The PasswordHash class is standalone. The PeoplePasswordHash class is tied to Vanilla a little bit, but You should be able to write your own implementation of it pretty easily that doesn't rely on Vanilla 1 at all.

jross

I need to figure that one out - my old one was a bit simpler - if anyone knows an easier way to tweak the following - I'd really appreciate it:
/**
* Checks whether or not the given username is in the
* database, if so it checks if the given password is
* the same password in the database for that user.
* If the user doesn't exist or if the passwords don't
* match up, it returns an error code (1 or 2).
* On success it returns 0.
*/
function confirmUser($username, $password){
global $conn;
/* Add slashes if necessary (for query) */
if(!get_magic_quotes_gpc()) {
$username = addslashes($username);
}

/* Verify that user is in database */
$q = "select Password, Email from LUM_User where Name = '$username'";
$result = mysql_query($q,$conn);
if(!$result || (mysql_numrows($result) < 1)){
return 1; //Indicates username failure
}

/* Retrieve password from result, strip slashes */
$dbarray = mysql_fetch_array($result);
$dbarray['Password'] = stripslashes($dbarray['Password']);
$password = stripslashes($password);

$_SESSION['email'] = $dbarray['Email'];
$db2 = $dbarray['Password'];
$email2 = $dbarray['Email'];
/* Validate that password is correct */
if($password == $dbarray['Password']){
return 0; //Success! Username and password confirmed
}
else{
return 2; //Indicates password failure
}
}

/**
* checkLogin - Checks if the user has already previously
* logged in, and a session with the user has already been
* established. Also checks to see if user has been remembered.
* If so, the database is queried to make sure of the user's
* authenticity. Returns true if the user has logged in.
*/
function checkLogin(){
/* Check if user has been remembered */
if(isset($_COOKIE['cookname']) && isset($_COOKIE['cookpass'])){
$_SESSION['username'] = $_COOKIE['cookname'];
$_SESSION['password'] = $_COOKIE['cookpass'];
$_SESSION['email'] = $_COOKIE['cookemail'];
}

/* Username and password have been set */
if(isset($_SESSION['username']) && isset($_SESSION['password'])){
/* Confirm that username and password are valid */
if(confirmUser($_SESSION['username'], $_SESSION['password']) != 0){
/* Variables are incorrect, user not logged in */
unset($_SESSION['username']);
unset($_SESSION['password']);
return false;
}
return true;
}
/* User not logged in */
else{
return false;
}
}


/**
* Checks to see if the user has submitted his
* username and password through the login form,
* if so, checks authenticity in database and
* creates session.
*/
if(isset($_POST['sublogin'])){
/* Check that all fields were typed in */
if(!$_POST['user'] || !$_POST['pass']){
die('You didn\'t fill in a required field.');
}
/* Spruce up username, check length */
$_POST['user'] = trim($_POST['user']);
if(strlen($_POST['user']) > 30){
die("Sorry, the username is longer than 30 characters, please shorten it.");
}

/* Checks that username is in database and password is correct */
$md5pass = md5($_POST['pass']);
$result = confirmUser($user, $md5pass);
echo "Sorry for the inconvenince - we're our current experiencing issues with this script.";
/* Check error codes */
if($result == 1){
die('That username doesn\'t exist in our database.');
}
else if($result == 2){
die('Incorrect password, please try again.');
}

/* Username and password correct, register session variables */
$_POST['user'] = stripslashes($_POST['user']);
$_SESSION['username'] = $_POST['user'];
$_SESSION['password'] = $md5pass;

/**
* This is the cool part: the user has requested that we remember that
* he's logged in, so we set two cookies. One to hold his username,
* and one to hold his md5 encrypted password. We set them both to
* expire in 100 days. Now, next time he comes to our site, we will
* log him in automatically.
*/
if(isset($_POST['remember'])){
setcookie("cookname", $_SESSION['username'], time()+60*60*24*100, "/");
setcookie("cookpass", $_SESSION['password'], time()+60*60*24*100, "/");
setcookie("cookemail", $_SESSION['email'], time()+60*60*24*100, "/");
}

Dinoboff

Vanilla 1 and 2 are using phpass:
http://www.openwall.com/phpass/

Here is a function to check the password against the password hash saved in Vanilla DB:

function CheckPassword($DbHash, $FormPassword) {
   if ($DbHash[0] === '_' || $DbHash[0] === '$') {
      $PH = new PasswordHash();
      $PH->CheckPassword($FormPassword, $DbHash);
   } else if ($FormPassword && $DbPassword !== '*'
         && ($FormPassword === $DbHash || md5($FormPassword) === $DbHash)
   ) {
      return true;
   }
   return false;
}

Edit: fixed typo.

jross

When I place that function in my script - I get:
Parse error: syntax error, unexpected '['
in this line:
if (DbHash[0] === '_' || DbHash[0] === '$') {

Louis

@jross Likely it's a typo (missing dollar signs), try:

function CheckPassword($DbHash, $FormPassword) {
   if ($DbHash[0] === '_' || $DbHash[0] === '$') {
      return new PasswordHash()->CheckPassword($FormPassword, $DbHash);
   } else if ($FormPassword && $DbPassword !== '*'
         && ($FormPassword === $DbHash || md5($FormPassword) === $DbHash)
   ) {
      return true;
   }
   return false;
}