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SSH1: do fsockopen() call when login has been called

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This commit is contained in:
terrafrost 2014-04-07 00:30:50 -05:00
parent 6fcfe5c885
commit 24bb941799
1 changed files with 78 additions and 12 deletions
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90
phpseclib/Net/SSH1.php
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@ -182,8 +182,9 @@ define('NET_SSH1_RESPONSE_DATA', 2);
* @access private
*/
define('NET_SSH1_MASK_CONSTRUCTOR', 0x00000001);
define('NET_SSH1_MASK_LOGIN', 0x00000002);
define('NET_SSH1_MASK_SHELL', 0x00000004);
define('NET_SSH1_MASK_CONNECTED', 0x00000002);
define('NET_SSH1_MASK_LOGIN', 0x00000004);
define('NET_SSH1_MASK_SHELL', 0x00000008);
/**#@-*/
/**#@+
@ -457,6 +458,48 @@ class Net_SSH1
*/
var $log_short_width = 16;
/**
* Hostname
*
* @see Net_SSH1::Net_SSH1()
* @see Net_SSH1::_connect()
* @var String
* @access private
*/
var $host;
/**
* Port Number
*
* @see Net_SSH1::Net_SSH1()
* @see Net_SSH1::_connect()
* @var Integer
* @access private
*/
var $port;
/**
* Timeout for Constructor
*
* For historical BC purposes setTimeout() does not effect timeout of constructor
*
* @see Net_SSH1::Net_SSH1()
* @see Net_SSH1::_connect()
* @var Integer
* @access private
*/
var $constructorTimeout;
/**
* Default cipher
*
* @see Net_SSH1::Net_SSH1()
* @see Net_SSH1::_connect()
* @var Integer
* @access private
*/
var $cipher;
/**
* Default Constructor.
*
@ -505,10 +548,24 @@ class Net_SSH1
$this->_define_array($this->protocol_flags);
$this->fsock = @fsockopen($host, $port, $errno, $errstr, $timeout);
$this->host = $host;
$this->port = $port;
$this->constructorTimeout = $timeout;
$this->cipher = $cipher;
}
/**
* Connect to an SSHv1 server
*
* @return Boolean
* @access private
*/
function _connect()
{
$this->fsock = @fsockopen($this->host, $this->port, $errno, $errstr, $this->constructorTimeout);
if (!$this->fsock) {
user_error(rtrim("Cannot connect to $host. Error $errno. $errstr"));
return;
user_error(rtrim("Cannot connect to $this->host:$this->port. Error $errno. $errstr"));
return false;
}
$this->server_identification = $init_line = fgets($this->fsock, 255);
@ -520,11 +577,11 @@ class Net_SSH1
if (!preg_match('#SSH-([0-9\.]+)-(.+)#', $init_line, $parts)) {
user_error('Can only connect to SSH servers');
return;
return false;
}
if ($parts[1][0] != 1) {
user_error("Cannot connect to SSH $parts[1] servers");
return;
return false;
}
fputs($this->fsock, $this->identifier."\r\n");
@ -532,7 +589,7 @@ class Net_SSH1
$response = $this->_get_binary_packet();
if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_PUBLIC_KEY) {
user_error('Expected SSH_SMSG_PUBLIC_KEY');
return;
return false;
}
$anti_spoofing_cookie = $this->_string_shift($response[NET_SSH1_RESPONSE_DATA], 8);
@ -612,12 +669,12 @@ class Net_SSH1
);
}
$cipher = isset($this->supported_ciphers[$cipher]) ? $cipher : NET_SSH1_CIPHER_3DES;
$cipher = isset($this->supported_ciphers[$this->cipher]) ? $this->cipher : NET_SSH1_CIPHER_3DES;
$data = pack('C2a*na*N', NET_SSH1_CMSG_SESSION_KEY, $cipher, $anti_spoofing_cookie, 8 * strlen($double_encrypted_session_key), $double_encrypted_session_key, 0);
if (!$this->_send_binary_packet($data)) {
user_error('Error sending SSH_CMSG_SESSION_KEY');
return;
return false;
}
switch ($cipher) {
@ -656,10 +713,12 @@ class Net_SSH1
if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_SUCCESS) {
user_error('Expected SSH_SMSG_SUCCESS');
return;
return false;
}
$this->bitmap = NET_SSH1_MASK_CONSTRUCTOR;
$this->bitmap = NET_SSH1_MASK_CONNECTED;
return true;
}
/**
@ -673,6 +732,13 @@ class Net_SSH1
function login($username, $password = '')
{
if (!($this->bitmap & NET_SSH1_MASK_CONSTRUCTOR)) {
$this->bitmap |= NET_SSH1_MASK_CONSTRUCTOR;
if (!$this->_connect()) {
return false;
}
}
if (!($this->bitmap & NET_SSH1_MASK_CONNECTED)) {
return false;
}