function GetIdentity() {
    global $table_prefix;
    $this->GetWordpressSettings();
   
    // Examine the cookie values for session info
    $login = ForceIncomingCookieString($this->UserCookieName, '');
    $pass = ForceIncomingCookieString($this->PassCookieName, '');
    $dbpass = '';
    $UserID = 0;
   
    if ($login != '' && $pass != '') {
        $s = "select id, user_pass from " . $table_prefix . "users where user_login = '".FormatStringForDatabaseInput($login)."'";
   
        $Result = $this->Context->Database->Execute($s,
            'WordpressAuthenticator',
            'GetIdentity',
            'An error occurred while attempting to retrieve session data.');
   
        if ($Result) {
            while ($rows = $this->Context->Database->GetRow($Result)) {
                $UserID = ForceInt($rows['id'], 0);
                $dbpass = ForceString($rows['user_pass'], '');
            }
   
            // If the double-md5d password doesn't match the one in the cookie - don't authenticate
            if (md5($dbpass) != $pass) {
                $UserID = 0;
            }
        }
    }
   
    return $UserID;
}

function GetWordpressSettings() {
    global $table_prefix;
    if ($this->WordpressSettingsRetrieved == '0') {
        $siteurl = '';
        $home = '';
        $s = "select option_name, option_value from " . $table_prefix . "options where option_name = 'siteurl' or option_name = 'home'";
        $DataSet = $this->Context->Database->Execute($s,
            'WordpressAuthenticator',
            'GetCookieName',
            'An error occurred while retrieving cookie names.');
        if ($DataSet) {
            while ($rows = $this->Context->Database->GetRow($DataSet)) {
                if ($rows['option_name'] == 'siteurl') {
                    $siteurl = ForceString($rows['option_value'], '');
                } else if ($rows['option_name'] == 'home') {
                    $home = ForceString($rows['option_value'], '');
                }
            }
        }       
        $this->CookiePath = preg_replace('|https?://[^/]+|i', '', $home . '/' );
        $this->SiteCookiePath = preg_replace('|https?://[^/]+|i', '', $siteurl . '/' );
        $this->CookieHash = md5($siteurl);
        $this->UserCookieName = 'wordpressuser_'.$this->CookieHash;
        $this->PassCookieName = 'wordpresspass_'.$this->CookieHash;
        $this->WordpressSettingsRetrieved = '1';
    }
}