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			308 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			308 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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class ModelUserAuth extends Model {
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   public function checkLogin($username = '', $password = '') {
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      $ok = 0;
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      if($username == '' || $password == '') { return 0; }
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      if(ENABLE_LDAP_AUTH == 1) {
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         $ok = $this->checkLoginAgainstLDAP($username, $password);
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         if($ok == 1) { return $ok; }
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      }
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      if(ENABLE_IMAP_AUTH == 1) {
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         require 'Zend/Mail/Protocol/Imap.php';
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         $ok = $this->checkLoginAgainstIMAP($username, $password);
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         if($ok == 1) { return $ok; }
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      }
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      // fallback local auth
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      $query = $this->db->query("SELECT u.username, u.uid, u.realname, u.dn, u.password, u.isadmin, u.domain FROM " . TABLE_USER . " u, " . TABLE_EMAIL . " e WHERE e.email=? AND e.uid=u.uid", array($username));
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      if(!isset($query->row['password'])) { return 0; }
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      $pass = crypt($password, $query->row['password']);
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      if($pass == $query->row['password']){
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         $ok = 1;
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         AUDIT(ACTION_LOGIN, $username, '', '', 'successful auth against user table');
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      }
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      else {
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         AUDIT(ACTION_LOGIN_FAILED, $username, '', '', 'failed auth against user table');
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      }
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      if($ok == 0 && strlen($query->row['dn']) > 3) {
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         $ok = $this->checkLoginAgainstFallbackLDAP($query->row, $password);
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      }
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      if($ok == 1) {
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         $_SESSION['username'] = $query->row['username'];
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         $_SESSION['uid'] = $query->row['uid'];
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         $_SESSION['admin_user'] = $query->row['isadmin'];
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         $_SESSION['email'] = $username;
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         $_SESSION['domain'] = $query->row['domain'];
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         $_SESSION['realname'] = $query->row['realname'];
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         $_SESSION['auditdomains'] = $this->model_user_user->get_users_all_domains($query->row['uid']);
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         $_SESSION['emails'] = $this->model_user_user->get_users_all_email_addresses($query->row['uid']);
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         $_SESSION['folders'] = $this->model_folder_folder->get_all_folder_ids($query->row['uid']);
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         $_SESSION['extra_folders'] = $this->model_folder_folder->get_all_extra_folder_ids($query->row['uid']);
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         return 1;
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      }
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      return 0;
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   }
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   private function checkLoginAgainstLDAP($username = '', $password = '') {
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      $ldap_type = '';
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      $ldap_host = LDAP_HOST;
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      $ldap_base_dn = LDAP_BASE_DN;
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      $ldap_helper_dn = LDAP_HELPER_DN;
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      $ldap_helper_password = LDAP_HELPER_PASSWORD;
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      $ldap_auditor_member_dn = LDAP_AUDITOR_MEMBER_DN;
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      if(ENABLE_SAAS == 1) {
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         $a = $this->model_saas_ldap->get_ldap_params_by_email($username);
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         if(count($a) >= 6) {
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            $ldap_type = $a[0];
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            $ldap_host = $a[1];
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            $ldap_base_dn = $a[2];
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            $ldap_helper_dn = $a[3];
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            $ldap_helper_password = $a[4];
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            $ldap_auditor_member_dn = $a[5];
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         }
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      }
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      list($ldap_mail_attr, $ldap_account_objectclass, $ldap_distributionlist_attr, $ldap_distributionlist_objectclass) = get_ldap_attribute_names($ldap_type);
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      if($ldap_host == '' || $ldap_helper_password == '') { return 0; }
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      $ldap = new LDAP($ldap_host, $ldap_helper_dn, $ldap_helper_password);
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      if($ldap->is_bind_ok()) {
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         $query = $ldap->query($ldap_base_dn, "(&(objectClass=$ldap_account_objectclass)($ldap_mail_attr=$username))", array());
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         if(isset($query->row['dn']) && $query->row['dn']) {
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            $a = $query->row;
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            $ldap_auth = new LDAP($ldap_host, $a['dn'], $password);
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            if(ENABLE_SYSLOG == 1) { syslog(LOG_INFO, "ldap auth against '" . $ldap_host . "', dn: '" . $a['dn'] . "', result: " . $ldap_auth->is_bind_ok()); }
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            if($ldap_auth->is_bind_ok()) {
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               $query = $ldap->query($ldap_base_dn, "(|(&(objectClass=$ldap_account_objectclass)($ldap_mail_attr=$username))(&(objectClass=$ldap_distributionlist_objectclass)($ldap_distributionlist_attr=$username)" . ")(&(objectClass=$ldap_distributionlist_objectclass)($ldap_distributionlist_attr=" . stripslashes($a['dn']) . ")))", array("mail", "mailalternateaddress", "proxyaddresses", "zimbraMailForwardingAddress", "member", "memberOfGroup"));
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               $is_auditor = $this->check_ldap_membership($ldap_auditor_member_dn, $query->rows);
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               $emails = $this->get_email_array_from_ldap_attr($query->rows);
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               $this->add_session_vars($a['cn'], $username, $emails, $is_auditor);
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               AUDIT(ACTION_LOGIN, $username, '', '', 'successful auth against LDAP');
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               return 1;
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            }
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            else {
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               AUDIT(ACTION_LOGIN_FAILED, $username, '', '', 'failed auth against LDAP');
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            }
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         }
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      }
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      else if(ENABLE_SYSLOG == 1) {
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         syslog(LOG_INFO, "cannot bind to '" . $ldap_host . "' as '" . $ldap_helper_dn . "'");
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      }
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      return 0;
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   }
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   private function check_ldap_membership($ldap_auditor_member_dn = '', $e = array()) {
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      if($ldap_auditor_member_dn == '') { return 0; }
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      foreach($e as $a) {
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         foreach (array("memberof", "dn") as $memberattr) {
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            if(isset($a[$memberattr])) {
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               if(isset($a[$memberattr]['count'])) {
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                  for($i = 0; $i < $a[$memberattr]['count']; $i++) {
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                     if($a[$memberattr][$i] == $ldap_auditor_member_dn) {
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                        return 1;
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                     }
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                  }
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               }
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               else {
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                  if($a[$memberattr] == $ldap_auditor_member_dn) {
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                     return 1;
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                  }
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               }
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            }
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         }
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      }
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      return 0;
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   }
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   private function get_email_array_from_ldap_attr($e = array()) {
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      $data = array();
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      foreach($e as $a) {
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         foreach (array("mail", "mailalternateaddress", "proxyaddresses", "zimbraMailForwardingAddress", "member", "memberOfGroup") as $mailattr) {
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            if(isset($a[$mailattr])) {
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               if(isset($a[$mailattr]['count'])) {
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                  for($i = 0; $i < $a[$mailattr]['count']; $i++) {
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                     if(preg_match("/^smtp\:/i", $a[$mailattr][$i]) || strchr($a[$mailattr][$i], '@') ) {
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                        $email = strtolower(preg_replace("/^smtp\:/i", "", $a[$mailattr][$i]));
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                        if(!in_array($email, $data) && strchr($email, '@') && substr($email, 0, 4) != 'sip:') { array_push($data, $email); }
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                     }
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                  }
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               }
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               else {
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                  $email = strtolower(preg_replace("/^smtp\:/i", "", $a[$mailattr]));
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                  if(!in_array($email, $data) && strchr($email, '@') && substr($email, 0, 4) != 'sip:') { array_push($data, $email); }
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               }
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            }
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         }
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      }
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      return $data;
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   }
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   private function add_session_vars($name = '', $email = '', $emails = array(), $is_auditor = 0) {
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      $a = explode("@", $email);
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      $uid = $this->model_user_user->get_uid_by_email($email);
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      if($uid < 1) {
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         $uid = $this->model_user_user->get_next_uid(TABLE_EMAIL);
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         $query = $this->db->query("INSERT INTO " . TABLE_EMAIL . " (uid, email) VALUES(?,?)", array($uid, $email));
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      }
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      $_SESSION['username'] = $name;
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      $_SESSION['uid'] = $uid;
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      if($is_auditor == 1) {
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         $_SESSION['admin_user'] = 2;
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      } else {
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         $_SESSION['admin_user'] = 0;
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      }
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      $_SESSION['email'] = $email;
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      $_SESSION['domain'] = $a[1];
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      $_SESSION['realname'] = $name;
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      $_SESSION['auditdomains'] = $this->model_domain_domain->get_your_all_domains_by_email($email);
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      $_SESSION['emails'] = $emails;
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      $_SESSION['folders'] = array();
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      $_SESSION['extra_folders'] = array();
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   }
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   private function checkLoginAgainstFallbackLDAP($user = array(), $password = '') {
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      if($password == '' || !isset($user['username']) || !isset($user['domain']) || !isset($user['dn']) || strlen($user['domain']) < 2){ return 0; }
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      $query = $this->db->query("SELECT remotehost, basedn FROM " . TABLE_REMOTE . " WHERE remotedomain=?", array($user['domain']));
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      if($query->num_rows != 1) { return 0; }
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      $ldap = new LDAP($query->row['remotehost'], $user['dn'], $password);
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      if($ldap->is_bind_ok()) {
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         $this->change_password($user['username'], $password);
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         AUDIT(ACTION_LOGIN, $user['username'], '', '', 'changed password in local table');
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         return 1;
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      }
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      else {
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         AUDIT(ACTION_LOGIN_FAILED, $user['username'], '', '', 'failed bind to ' . $query->row['remotehost'], $user['dn']);
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      }
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      return 0; 
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   }
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   private function checkLoginAgainstIMAP($username = '', $password = '') {
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      $user = array();
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      $imap = new Zend_Mail_Protocol_Imap(IMAP_HOST, IMAP_PORT, IMAP_SSL);
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      if($imap->login($username, $password)) {
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         $imap->logout();
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         $this->add_session_vars($username, $username, array($username), 0);
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         $_SESSION['password'] = $password;
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         return 1;
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      }
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      return 0;
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   }
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   public function check_ntlm_auth() {
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      $ldap_mail_attr = 'mail';
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      $ldap_account_objectclass = 'user';
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      $ldap_distributionlist_attr = 'member';
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      $ldap_distributionlist_objectclass = 'group';
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      if(!isset($_SERVER['REMOTE_USER'])) { return 0; }
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      $u = explode("\\", $_SERVER['REMOTE_USER']);
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      if(!isset($u[1])) { return 0; }
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      $ldap = new LDAP(LDAP_HOST, LDAP_HELPER_DN, LDAP_HELPER_PASSWORD);
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      if($ldap->is_bind_ok()) {
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         $query = $ldap->query(LDAP_BASE_DN, "(&(objectClass=$ldap_account_objectclass)(samaccountname=" . $u[1] . "))", array());
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         if(isset($query->row['dn'])) {
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            $a = $query->row;
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            if(isset($a['mail']['count'])) { $username = $a['mail'][0]; } else { $username = $a['mail']; }
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            $username = strtolower(preg_replace("/^smtp\:/i", "", $username));
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            $query = $ldap->query(LDAP_BASE_DN, "(|(&(objectClass=$ldap_account_objectclass)($ldap_mail_attr=$username))(&(objectClass=$ldap_distributionlist_objectclass)($ldap_distributionlist_attr=$username)" . ")(&(objectClass=$ldap_distributionlist_objectclass)($ldap_distributionlist_attr=" . $a['dn'] . ")))", array());
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            $emails = $this->get_email_array_from_ldap_attr($query->rows);
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            $this->add_session_vars($a['cn'], $username, $emails, 0);
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            AUDIT(ACTION_LOGIN, $username, '', '', 'successful auth against LDAP');
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            return 1;
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         }
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      }
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      return 0; 
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   }
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   public function change_password($username = '', $password = '') {
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      if($username == "" || $password == ""){ return 0; }
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      $query = $this->db->query("UPDATE " . TABLE_USER . " SET password=? WHERE username=?", array(crypt($password), $username));
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      $rc = $this->db->countAffected();
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      return $rc;
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   }
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}
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?>
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