| | |
| | | else if (!$login_disabled) { |
| | | $auth_methods[] = 'LOGIN'; |
| | | } |
| | | |
| | | // Use best (for security) supported authentication method |
| | | foreach (array('DIGEST-MD5', 'CRAM-MD5', 'CRAM_MD5', 'PLAIN', 'LOGIN') as $auth_method) { |
| | | if (in_array($auth_method, $auth_methods)) { |
| | | break; |
| | | } |
| | | } |
| | | } |
| | | else { |
| | | // Prevent from sending credentials in plain text when connection is not secure |
| | |
| | | return false; |
| | | } |
| | | // replace AUTH with CRAM-MD5 for backward compat. |
| | | $auth_methods[] = $auth_method == 'AUTH' ? 'CRAM-MD5' : $auth_method; |
| | | if ($auth_method == 'AUTH') { |
| | | $auth_method = 'CRAM-MD5'; |
| | | } |
| | | } |
| | | |
| | | // pre-login capabilities can be not complete |
| | | $this->capability_readed = false; |
| | | |
| | | // Authenticate |
| | | foreach ($auth_methods as $method) { |
| | | switch ($method) { |
| | | switch ($auth_method) { |
| | | case 'CRAM_MD5': |
| | | $method = 'CRAM-MD5'; |
| | | $auth_method = 'CRAM-MD5'; |
| | | case 'CRAM-MD5': |
| | | case 'DIGEST-MD5': |
| | | case 'PLAIN': |
| | | $result = $this->authenticate($user, $password, $method); |
| | | $result = $this->authenticate($user, $password, $auth_method); |
| | | break; |
| | | case 'LOGIN': |
| | | $result = $this->login($user, $password); |
| | | break; |
| | | default: |
| | | $this->setError(self::ERROR_BAD, "Configuration error. Unknown auth method: $method"); |
| | | } |
| | | |
| | | if (is_resource($result)) { |
| | | break; |
| | | } |
| | | $this->setError(self::ERROR_BAD, "Configuration error. Unknown auth method: $auth_method"); |
| | | } |
| | | |
| | | // Connected and authenticated |