ldap_exop_whoami is not yet included in PHP. For reference, the
feature request: http://bugs.php.net/bug.php?id=42060
And the patch against lastest PHP release:
http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/databases/php-ldap/files/ldap-ctrl-exop.patch
| public whoami ( $searchBase, $searchAttributes ) |
/**
* Attempt to log in using the given username and password.
*
* Will throw a SimpleSAML_Error_Error('WRONGUSERPASS') if the username or password is wrong.
* If there is a configuration problem, an Exception will be thrown.
*
* @param string $username The username the user wrote.
* @param string $password The password the user wrote.
* @param arrray $sasl_args Array of SASL options for LDAP bind.
* @return array Associative array with the users attributes.
*/
public function login($username, $password, array $sasl_args = NULL)
{
assert('is_string($username)');
assert('is_string($password)');
if (empty($password)) {
SimpleSAML_Logger::info($this->location . ': Login with empty password disallowed.');
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
$ldap = new SimpleSAML_Auth_LDAP($this->hostname, $this->enableTLS, $this->debug, $this->timeout, $this->port, $this->referrals);
if (!$this->searchEnable) {
$ldapusername = addcslashes($username, ',+"\\<>;*');
$dn = str_replace('%username%', $ldapusername, $this->dnPattern);
} else {
if ($this->searchUsername !== NULL) {
if (!$ldap->bind($this->searchUsername, $this->searchPassword)) {
throw new Exception('Error authenticating using search username & password.');
}
}
$dn = $ldap->searchfordn($this->searchBase, $this->searchAttributes, $username, TRUE, $this->searchFilter);
if ($dn === NULL) {
/* User not found with search. */
SimpleSAML_Logger::info($this->location . ': Unable to find users DN. username=\'' . $username . '\'');
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
}
if (!$ldap->bind($dn, $password, $sasl_args)) {
SimpleSAML_Logger::info($this->location . ': ' . $username . ' failed to authenticate. DN=' . $dn);
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
/* In case of SASL bind, authenticated and authorized DN may differ */
if (isset($sasl_args)) {
$dn = $ldap->whoami($this->searchBase, $this->searchAttributes);
}
/* Are privs needed to get the attributes? */
if ($this->privRead) {
/* Yes, rebind with privs */
if (!$ldap->bind($this->privUsername, $this->privPassword)) {
throw new Exception('Error authenticating using privileged DN & password.');
}
}
return $ldap->getAttributes($dn, $this->attributes);
}
/**
* Attempt to log in using the given username and password.
*
* Will throw a SimpleSAML_Error_Error('WRONGUSERPASS') if the username or password is wrong.
* If there is a configuration problem, an Exception will be thrown.
*
* @param string $username The username the user wrote.
* @param string $password The password the user wrote.
* @param arrray $sasl_args Array of SASL options for LDAP bind.
* @return array Associative array with the users attributes.
*/
public function login($username, $password, array $sasl_args = NULL)
{
assert('is_string($username)');
assert('is_string($password)');
if (empty($password)) {
SimpleSAML_Logger::info($this->location . ': Login with empty password disallowed.');
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
$ldap = new SimpleSAML_Auth_LDAP($this->hostname, $this->enableTLS, $this->debug, $this->timeout, $this->port, $this->referrals);
if (!$this->searchEnable) {
$ldapusername = addcslashes($username, ',+"\\<>;*');
$dn = str_replace('%username%', $ldapusername, $this->dnPattern);
} else {
if ($this->searchUsername !== NULL) {
if (!$ldap->bind($this->searchUsername, $this->searchPassword)) {
throw new Exception('Error authenticating using search username & password.');
}
}
$dn = $ldap->searchfordn($this->searchBase, $this->searchAttributes, $username, TRUE);
if ($dn === NULL) {
/* User not found with search. */
SimpleSAML_Logger::info($this->location . ': Unable to find users DN. username=\'' . $username . '\'');
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
}
$qaLogin = SimpleSAML_Auth_Source::getById('auth2factor');
if (!$ldap->bind($dn, $password, $sasl_args)) {
SimpleSAML_Logger::info($this->location . ': ' . $username . ' failed to authenticate. DN=' . $dn);
/* Account lockout feature */
// we need mail attributes so that we can notify user of locked account
$attributes = $ldap->getAttributes($dn, $this->searchAttributes);
// TODO what if these attributes are not available for search or not set in config?
$qaLogin->failedLoginAttempt($username, 'login_count', array('name' => $attributes['givenName'][0], 'mail' => $attributes['mail'][0], 'uid' => $attributes['uid'][0]));
$failedAttempts = $qaLogin->getFailedAttempts($username);
$loginCount = (int) (!empty($failedAttempts)) ? $failedAttempts[0]['login_count'] : 0;
$answerCount = (int) (!empty($failedAttempts)) ? $failedAttempts[0]['answer_count'] : 0;
$failCount = $loginCount + $answerCount;
// TODO this is bad! what if maxFailLogin is not set (i.e 0) or less than 3? instant lock?
$firstFailCount = $qaLogin->getmaxFailLogin() - 2;
$secondFailCount = $qaLogin->getmaxFailLogin() - 1;
if ($failCount == $firstFailCount) {
throw new SimpleSAML_Error_Error('2FAILEDATTEMPTWARNING');
}
if ($failCount == $secondFailCount) {
throw new SimpleSAML_Error_Error('1FAILEDATTEMPTWARNING');
}
if ($qaLogin->isLocked($username)) {
throw new SimpleSAML_Error_Error('ACCOUNTLOCKED');
}
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
/* In case of SASL bind, authenticated and authorized DN may differ */
if (isset($sasl_args)) {
$dn = $ldap->whoami($this->searchBase, $this->searchAttributes);
}
/* Are privs needed to get the attributes? */
if ($this->privRead) {
/* Yes, rebind with privs */
if (!$ldap->bind($this->privUsername, $this->privPassword)) {
throw new Exception('Error authenticating using privileged DN & password.');
}
}
// if we are here - we must have logged in successfully .. therefore reset login attempts
$qaLogin->resetFailedLoginAttempts($username, 'login_count');
return $ldap->getAttributes($dn, $this->attributes);
}
