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SSH2: add "smart multi factor" login mode (enabled by default)

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This commit is contained in:
terrafrost 2021-11-03 22:16:14 -05:00
parent 1a942620b3
commit 29c8591cb2
1 changed files with 75 additions and 3 deletions
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72
phpseclib/Net/SSH2.php
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@ -1049,6 +1049,14 @@ class Net_SSH2
*/
var $regenerate_decompression_context = false;
/**
* Smart multi-factor authentication flag
*
* @var bool
* @access private
*/
var $smartMFA = true;
/**
* Default Constructor.
*
@ -2259,11 +2267,59 @@ class Net_SSH2
return $this->_login_helper($username);
}
while (count($args)) {
if (!$this->auth_methods_to_continue || !$this->smartMFA) {
$newargs = $args;
$args = array();
} else {
$newargs = array();
foreach ($this->auth_methods_to_continue as $method) {
switch ($method) {
case 'publickey':
foreach ($args as $key => $arg) {
if (is_object($arg)) {
$newargs[] = $arg;
unset($args[$key]);
break;
}
}
break;
case 'keyboard-interactive':
$hasArray = $hasString = false;
foreach ($args as $arg) {
if ($hasArray || is_array($arg)) {
$hasArray = true;
break;
}
if ($hasString || is_string($arg)) {
$hasString = true;
break;
}
}
if ($hasArray && $hasString) {
foreach ($args as $key => $arg) {
if (is_array($arg)) {
$newargs[] = $arg;
break 2;
}
}
}
case 'password':
foreach ($args as $key => $arg) {
$newargs[] = $arg;
unset($args[$key]);
break;
}
}
}
}
foreach ($newargs as $arg) {
if ($this->_login_helper($username, $arg)) {
return true;
}
}
}
return false;
}
@ -5321,4 +5377,20 @@ class Net_SSH2
{
return $this->auth_methods_to_continue;
}
/**
* Enables "smart" multi-factor authentication (MFA)
*/
function enableSmartMFA()
{
$this->smartMFA = true;
}
/**
* Disables "smart" multi-factor authentication (MFA)
*/
function disableSmartMFA()
{
$this->smartMFA = false;
}
}