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Implemented auth_methods_to_continue property and getter.

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nickyb 2021-04-29 22:22:24 +01:00 committed by terrafrost
parent 0f77cf3a59
commit b53f54d953
1 changed files with 31 additions and 4 deletions
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35
phpseclib/Net/SSH2.php
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@ -1022,6 +1022,14 @@ class SSH2
*/
private $term = 'vt100';
/**
* The authentication methods that may productively continue authentication.
*
* @see https://tools.ietf.org/html/rfc4252#section-5.1
* @var array|null
*/
private $auth_methods_to_continue = null;
/**
* Default Constructor.
*
@ -2073,7 +2081,7 @@ class SSH2
// try logging with 'none' as an authentication method first since that's what
// PuTTY does
if (substr($this->server_identifier, 0, 13) != 'SSH-2.0-CoreFTP') {
if (substr($this->server_identifier, 0, 13) != 'SSH-2.0-CoreFTP' && $this->auth_methods_to_continue === null) {
if ($this->sublogin($username)) {
return true;
}
@ -2199,7 +2207,9 @@ class SSH2
case NET_SSH2_MSG_USERAUTH_SUCCESS:
$this->bitmap |= self::MASK_LOGIN;
return true;
//case NET_SSH2_MSG_USERAUTH_FAILURE:
case NET_SSH2_MSG_USERAUTH_FAILURE:
list($auth_methods) = Strings::unpackSSH2('L', $response);
$this->auth_methods_to_continue = $auth_methods;
default:
return false;
}
@ -2255,6 +2265,7 @@ class SSH2
// can we use keyboard-interactive authentication? if not then either the login is bad or the server employees
// multi-factor authentication
list($auth_methods, $partial_success) = Strings::unpackSSH2('Lb', $response);
$this->auth_methods_to_continue = $auth_methods;
if (!$partial_success && in_array('keyboard-interactive', $auth_methods)) {
if ($this->keyboard_interactive_login($username, $password)) {
$this->bitmap |= self::MASK_LOGIN;
@ -2390,6 +2401,8 @@ class SSH2
case NET_SSH2_MSG_USERAUTH_SUCCESS:
return true;
case NET_SSH2_MSG_USERAUTH_FAILURE:
list($auth_methods) = Strings::unpackSSH2('L', $response);
$this->auth_methods_to_continue = $auth_methods;
return false;
}
@ -2511,8 +2524,9 @@ class SSH2
list($type) = Strings::unpackSSH2('C', $response);
switch ($type) {
case NET_SSH2_MSG_USERAUTH_FAILURE:
list($message) = Strings::unpackSSH2('s', $response);
$this->errors[] = 'SSH_MSG_USERAUTH_FAILURE: ' . $message;
list($auth_methods) = Strings::unpackSSH2('L', $response);
$this->auth_methods_to_continue = $auth_methods;
$this->errors[] = 'SSH_MSG_USERAUTH_FAILURE';
return false;
case NET_SSH2_MSG_USERAUTH_PK_OK:
// we'll just take it on faith that the public key blob and the public key algorithm name are as
@ -2547,6 +2561,8 @@ class SSH2
switch ($type) {
case NET_SSH2_MSG_USERAUTH_FAILURE:
// either the login is bad or the server employs multi-factor authentication
list($auth_methods) = Strings::unpackSSH2('L', $response);
$this->auth_methods_to_continue = $auth_methods;
return false;
case NET_SSH2_MSG_USERAUTH_SUCCESS:
$this->bitmap |= self::MASK_LOGIN;
@ -4961,4 +4977,15 @@ class SSH2
);
}
}
/**
* Return the list of authentication methods that may productively continue authentication.
*
* @see https://tools.ietf.org/html/rfc4252#section-5.1
* @return array|null
*/
public function getAuthMethodsToContinue()
{
return $this->auth_methods_to_continue;
}
}