Pasted

<?php
 
class Pop{
    function auth_pop3_ssl($username, $password)
    {
        $popserver = 'pop_server';
        /*
         Usage: auth_pop3_ssl('username', 'password', 'pop3.example.com')
 
         If the host is using SSL, prepend $popserver with "ssl://"
 
         Original code from:
         http://www.php.happycodings.com/E-Mail/code18.html
 
         Modified by Lord Matt:
         http://lordmatt.co.uk/item/1162/
         Updates and fixes by Andrew Peng:
         http://andrewpeng.net/computing/php-scripting/pop3-authentication
 
         This program is free software: you can redistribute it and/or modify
         it under the terms of the GNU General Public License as published by
         the Free Software Foundation, either version 3 of the License, or
         (at your option) any later version.
 
         This program is distributed in the hope that it will be useful,
         but WITHOUT ANY WARRANTY; without even the implied warranty of
         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
         GNU General Public License for more details.
 
         You should have received a copy of the GNU General Public License
         along with this program. If not, see http://www.gnu.org/licenses/.
         */
 
        $isSSL = 0;
 
        if(substr($popserver, 0, 6) == "ssl://")
        {
            $isSSL = 1;
        }
        if(trim($username)=='')
        {
            return false;
        }
        else
        {
            if($isSSL)
            {
                $fp = fsockopen("$popserver", 995, $errno, $errstr);
            }
 
            else
            {
                $fp = fsockopen("$popserver", 110, $errno, $errstr);
            }
 
            if(!$fp)
            {
                // failed to open POP3
                return "status:connect_failed";
            }
 
            else
            {
                set_socket_blocking($fp,-1); // Turn off blocking
 
                /*
                 Clear the POP server's Banner Text.
                 eg.. '+OK Welcome to etc etc'
                 */
 
                $trash = fgets($fp,128); // Trash to hold the banner
                fwrite($fp,"USER $username\r\n"); // POP3 USER CMD
                $user = fgets($fp,128);
                $user = ereg_replace("\n","",$user);
 
                if ( ereg ("^\+OK(.+)", $user ) )
                {
                    fwrite($fp,"PASS $password\r\n"); // POP3 PASS CMD
                    $pass = fgets($fp,128);
                    $pass = ereg_replace("\n","",$pass);
 
                    if ( ereg ("^\+OK(.+)", $pass ) )
                    {
                        // User has successfully authenticated
                        $auth = "status:true";
                    }
 
                    else
                    {
                        // bad password
                        $auth = "status:false";
                    }
                }
 
                else
                {
                    // bad username
                    $auth = "status:false";
                }
 
                fwrite($fp,"QUIT\r\n");
                fclose($fp);
                return $auth;
            }
        }
    }
}
?>
 
//Login by mail account pop 3 and check on DB
// *twitter.com/quocvuongdn
<?php
$this->popMail = new POP();
$mailStatus = $this->popMail->auth_pop3_ssl($email,$password);
if($mailStatus == "status:true"){
    $result = $this->userModel->GetUserByEmail($email); //Check account on DB
    if(count($result) > 0){
        if($result['Active'] == 1){
            $this->userModel->UpdateLastLoginByEmail($email);
            $_SESSION['user_account'] = $result;
            echo 'data:success'; //Successfully sign in
        } else{
            echo 'data:error:inactive'; //Account inactive
        }
    }else{
        //Insert to DB
            $newUser = array("PermissionID" => 2, "Email" => "'".$email."'", "LastLogin" => 'now()', "Active" => 0);
            $this->userModel->InsertNewUser($newUser); //Insert new account
            echo 'data:error:inactive'; //Account inactive
            }
} elseif($mailStatus == "status:connect_failed"){
            echo 'data:error:connect'; //Server issue
} elseif($mailStatus == "status:false"){
        echo 'data:error:failed'; //Invalid email or password
}
?>