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SSH2: replace user_error's with exceptions
This commit is contained in:
terrafrost
parent
80d84d1009
commit
f300e825b0
26
phpseclib/Exception/NoSupportedAlgorithmsException.php
Normal file
26
phpseclib/Exception/NoSupportedAlgorithmsException.php
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@ -0,0 +1,26 @@
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<?php
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/**
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* NoSupportedAlgorithmsException
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*
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* PHP version 5
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*
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* @category Exception
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* @package NoSupportedAlgorithmsException
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* @author Jim Wigginton <terrafrost@php.net>
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* @copyright 2015 Jim Wigginton
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @link http://phpseclib.sourceforge.net
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*/
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namespace phpseclib\Exception;
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/**
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* NoSupportedAlgorithmsException
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*
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* @package NoSupportedAlgorithmsException
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* @author Jim Wigginton <terrafrost@php.net>
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*/
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class NoSupportedAlgorithmsException extends \RuntimeException
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{
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}
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@ -60,6 +60,7 @@ use phpseclib\Crypt\TripleDES;
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use phpseclib\Crypt\Twofish;
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use phpseclib\Math\BigInteger; // Used to do Diffie-Hellman key exchange and DSA/RSA signature verification.
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use phpseclib\System\SSH\Agent;
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use phpseclib\Exception\NoSupportedAlgorithmsException;
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/**
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* Pure-PHP implementation of SSHv2.
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@ -977,6 +978,8 @@ class SSH2
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* Connect to an SSHv2 server
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*
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* @return Boolean
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* @throws \UnexpectedValueException on receipt of unexpected packets
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* @throws \RuntimeException on other errors
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* @access private
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*/
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function _connect()
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@ -996,8 +999,7 @@ class SSH2
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$start = microtime(true);
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$this->fsock = @fsockopen($this->host, $this->port, $errno, $errstr, $this->curTimeout);
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if (!$this->fsock) {
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user_error(rtrim("Cannot connect to $host. Error $errno. $errstr"));
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return false;
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throw new \RuntimeException(rtrim("Cannot connect to $host. Error $errno. $errstr"))_;
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}
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$elapsed = microtime(true) - $start;
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@ -1047,8 +1049,7 @@ class SSH2
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}
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if (feof($this->fsock)) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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$this->identifier = $this->_generate_identifier();
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@ -1064,21 +1065,18 @@ class SSH2
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}
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if ($matches[1] != '1.99' && $matches[1] != '2.0') {
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user_error("Cannot connect to SSH $matches[1] servers");
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return false;
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throw new \RuntimeException("Cannot connect to SSH $matches[1] servers");
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}
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fputs($this->fsock, $this->identifier . "\r\n");
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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if (ord($response[0]) != NET_SSH2_MSG_KEXINIT) {
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user_error('Expected SSH_MSG_KEXINIT');
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return false;
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throw new \UnexpectedValueException('Expected SSH_MSG_KEXINIT');
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}
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if (!$this->_key_exchange($response)) {
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@ -1126,6 +1124,9 @@ class SSH2
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* Key Exchange
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*
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* @param String $kexinit_payload_server
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* @throws \UnexpectedValueException on receipt of unexpected packets
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* @throws \RuntimeException on other errors
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* @throws \phpseclib\Exception\NoSupportedAlgorithmsException when none of the algorithms phpseclib has loaded are compatible
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* @access private
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*/
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function _key_exchange($kexinit_payload_server)
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@ -1317,8 +1318,8 @@ class SSH2
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// we need to decide upon the symmetric encryption algorithms before we do the diffie-hellman key exchange
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for ($i = 0; $i < count($encryption_algorithms) && !in_array($encryption_algorithms[$i], $this->encryption_algorithms_server_to_client); $i++);
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if ($i == count($encryption_algorithms)) {
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user_error('No compatible server to client encryption algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new \RuntimeException('No compatible server to client encryption algorithms found');
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}
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// we don't initialize any crypto-objects, yet - we do that, later. for now, we need the lengths to make the
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@ -1363,8 +1364,8 @@ class SSH2
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for ($i = 0; $i < count($encryption_algorithms) && !in_array($encryption_algorithms[$i], $this->encryption_algorithms_client_to_server); $i++);
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if ($i == count($encryption_algorithms)) {
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user_error('No compatible client to server encryption algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible client to server encryption algorithms found');
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}
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$encrypt = $encryption_algorithms[$i];
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@ -1410,8 +1411,8 @@ class SSH2
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// through diffie-hellman key exchange a symmetric key is obtained
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for ($i = 0; $i < count($kex_algorithms) && !in_array($kex_algorithms[$i], $this->kex_algorithms); $i++);
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if ($i == count($kex_algorithms)) {
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user_error('No compatible key exchange algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible key exchange algorithms found');
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}
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if (strpos($kex_algorithms[$i], 'diffie-hellman-group-exchange') === 0) {
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@ -1513,20 +1514,17 @@ class SSH2
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$data = pack('CNa*', $clientKexInitMessage, strlen($eBytes), $eBytes);
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if (!$this->_send_binary_packet($data)) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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if ($type != $serverKexReplyMessage) {
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user_error('Expected SSH_MSG_KEXDH_REPLY');
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return false;
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throw new \UnexpectedValueException('Expected SSH_MSG_KEXDH_REPLY');
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}
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$temp = unpack('Nlength', $this->_string_shift($response, 4));
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@ -1568,13 +1566,13 @@ class SSH2
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for ($i = 0; $i < count($server_host_key_algorithms) && !in_array($server_host_key_algorithms[$i], $this->server_host_key_algorithms); $i++);
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if ($i == count($server_host_key_algorithms)) {
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user_error('No compatible server host key algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible server host key algorithms found');
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}
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if ($public_key_format != $server_host_key_algorithms[$i] || $this->signature_format != $server_host_key_algorithms[$i]) {
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user_error('Server Host Key Algorithm Mismatch');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new \RuntimeException('Server Host Key Algorithm Mismatch');
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}
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$packet = pack('C',
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@ -1588,15 +1586,13 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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if ($type != NET_SSH2_MSG_NEWKEYS) {
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user_error('Expected SSH_MSG_NEWKEYS');
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return false;
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throw new \UnexpectedValueException('Expected SSH_MSG_NEWKEYS');
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}
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switch ($encrypt) {
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@ -1757,8 +1753,8 @@ class SSH2
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for ($i = 0; $i < count($mac_algorithms) && !in_array($mac_algorithms[$i], $this->mac_algorithms_client_to_server); $i++);
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if ($i == count($mac_algorithms)) {
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user_error('No compatible client to server message authentication algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible client to server message authentication algorithms found');
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}
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$createKeyLength = 0; // ie. $mac_algorithms[$i] == 'none'
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@ -1786,8 +1782,8 @@ class SSH2
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for ($i = 0; $i < count($mac_algorithms) && !in_array($mac_algorithms[$i], $this->mac_algorithms_server_to_client); $i++);
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if ($i == count($mac_algorithms)) {
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user_error('No compatible server to client message authentication algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible server to client message authentication algorithms found');
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}
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$checkKeyLength = 0;
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@ -1833,15 +1829,15 @@ class SSH2
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for ($i = 0; $i < count($compression_algorithms) && !in_array($compression_algorithms[$i], $this->compression_algorithms_server_to_client); $i++);
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if ($i == count($compression_algorithms)) {
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user_error('No compatible server to client compression algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible server to client compression algorithms found');
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}
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$this->decompress = $compression_algorithms[$i] == 'zlib';
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for ($i = 0; $i < count($compression_algorithms) && !in_array($compression_algorithms[$i], $this->compression_algorithms_client_to_server); $i++);
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if ($i == count($compression_algorithms)) {
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user_error('No compatible client to server compression algorithms found');
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return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
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throw new NoSupportedAlgorithmsException('No compatible client to server compression algorithms found');
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}
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$this->compress = $compression_algorithms[$i] == 'zlib';
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@ -1903,6 +1899,8 @@ class SSH2
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* @param String $username
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* @param optional String $password
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* @return Boolean
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* @throws \UnexpectedValueException on receipt of unexpected packets
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* @throws \RuntimeException on other errors
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* @access private
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* @internal It might be worthwhile, at some point, to protect against {@link http://tools.ietf.org/html/rfc4251#section-9.3.9 traffic analysis}
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* by sending dummy SSH_MSG_IGNORE messages.
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@ -1924,15 +1922,13 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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if ($type != NET_SSH2_MSG_SERVICE_ACCEPT) {
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user_error('Expected SSH_MSG_SERVICE_ACCEPT');
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return false;
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throw new \UnexpectedValueException('Expected SSH_MSG_SERVICE_ACCEPT');
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}
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$this->bitmap |= self::MASK_LOGIN_REQ;
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}
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@ -2004,8 +2000,7 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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@ -2071,6 +2066,7 @@ class SSH2
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*
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* @param String $responses...
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* @return Boolean
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* @throws \RuntimeException on connection error
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* @access private
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*/
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function _keyboard_interactive_process()
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@ -2082,8 +2078,7 @@ class SSH2
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} else {
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$orig = $response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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}
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@ -2207,6 +2202,7 @@ class SSH2
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* @param String $username
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* @param \phpseclib\Crypt\RSA $password
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* @return Boolean
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* @throws \RuntimeException on connection error
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* @access private
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* @internal It might be worthwhile, at some point, to protect against {@link http://tools.ietf.org/html/rfc4251#section-9.3.9 traffic analysis}
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* by sending dummy SSH_MSG_IGNORE messages.
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@ -2240,8 +2236,7 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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@ -2275,8 +2270,7 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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extract(unpack('Ctype', $this->_string_shift($response, 1)));
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@ -2326,6 +2320,7 @@ class SSH2
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* @param String $command
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* @param optional Callback $callback
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* @return String
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* @throws \RuntimeException on connection error
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* @access public
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*/
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function exec($command, $callback = null)
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@ -2373,8 +2368,7 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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list(, $type) = unpack('C', $this->_string_shift($response, 1));
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@ -2384,8 +2378,8 @@ class SSH2
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break;
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case NET_SSH2_MSG_CHANNEL_FAILURE:
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default:
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user_error('Unable to request pseudo-terminal');
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return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
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$this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
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throw new \RuntimeException('Unable to request pseudo-terminal');
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}
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$this->in_request_pty_exec = true;
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}
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@ -2445,6 +2439,8 @@ class SSH2
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* @see \phpseclib\Net\SSH2::read()
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* @see \phpseclib\Net\SSH2::write()
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* @return Boolean
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* @throws \UnexpectedValueException on receipt of unexpected packets
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* @throws \RuntimeException on other errors
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* @access private
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*/
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function _initShell()
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@ -2481,8 +2477,7 @@ class SSH2
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$response = $this->_get_binary_packet();
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if ($response === false) {
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user_error('Connection closed by server');
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return false;
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throw new \RuntimeException('Connection closed by server');
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}
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list(, $type) = unpack('C', $this->_string_shift($response, 1));
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@ -2493,8 +2488,8 @@ class SSH2
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case NET_SSH2_MSG_CHANNEL_FAILURE:
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break;
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default:
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user_error('Unable to request pseudo-terminal');
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return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
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$this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
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throw new \UnexpectedValueException('Unable to request pseudo-terminal');
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}
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$packet = pack('CNNa*C',
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@ -2565,6 +2560,7 @@ class SSH2
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* @param String $expect
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* @param Integer $mode
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* @return String
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* @throws \RuntimeException on connection error
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* @access public
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*/
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function read($expect = '', $mode = self::READ_SIMPLE)
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@ -2578,8 +2574,7 @@ class SSH2
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}
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if (!($this->bitmap & self::MASK_SHELL) && !$this->_initShell()) {
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user_error('Unable to initiate an interactive shell session');
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return false;
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throw new \RuntimeException('Unable to initiate an interactive shell session');
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}
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$channel = $this->_get_interactive_channel();
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@ -2610,18 +2605,17 @@ class SSH2
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* @see \phpseclib\Net\SSH2::read()
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* @param String $cmd
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* @return Boolean
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* @throws \RuntimeException on connection error
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* @access public
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*/
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function write($cmd)
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{
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if (!($this->bitmap & self::MASK_LOGIN)) {
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user_error('Operation disallowed prior to login()');
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return false;
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throw new \RuntimeException('Operation disallowed prior to login()');
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}
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if (!($this->bitmap & self::MASK_SHELL) && !$this->_initShell()) {
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user_error('Unable to initiate an interactive shell session');
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return false;
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throw new \RuntimeException('Unable to initiate an interactive shell session');
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}
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return $this->_send_channel_packet($this->_get_interactive_channel(), $cmd);
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@ -2763,14 +2757,14 @@ class SSH2
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*
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* @see \phpseclib\Net\SSH2::_send_binary_packet()
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* @return String
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* @throws \RuntimeException on connection errors
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* @access private
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*/
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function _get_binary_packet()
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{
|
||||
if (!is_resource($this->fsock) || feof($this->fsock)) {
|
||||
user_error('Connection closed prematurely');
|
||||
$this->bitmap = 0;
|
||||
return false;
|
||||
throw new \RuntimeException('Connection closed prematurely');
|
||||
}
|
||||
|
||||
$start = microtime(true);
|
||||
@ -2796,17 +2790,15 @@ class SSH2
|
||||
// "implementations SHOULD check that the packet length is reasonable"
|
||||
// PuTTY uses 0x9000 as the actual max packet size and so to shall we
|
||||
if ($remaining_length < -$this->decrypt_block_size || $remaining_length > 0x9000 || $remaining_length % $this->decrypt_block_size != 0) {
|
||||
user_error('Invalid size');
|
||||
return false;
|
||||
throw new \RuntimeException('Invalid size');
|
||||
}
|
||||
|
||||
$buffer = '';
|
||||
while ($remaining_length > 0) {
|
||||
$temp = fread($this->fsock, $remaining_length);
|
||||
if ($temp === false || feof($this->fsock)) {
|
||||
user_error('Error reading from socket');
|
||||
$this->bitmap = 0;
|
||||
return false;
|
||||
throw new \RuntimeException('Error reading from socket');
|
||||
}
|
||||
$buffer.= $temp;
|
||||
$remaining_length-= strlen($temp);
|
||||
@ -2822,12 +2814,10 @@ class SSH2
|
||||
if ($this->hmac_check !== false) {
|
||||
$hmac = fread($this->fsock, $this->hmac_size);
|
||||
if ($hmac === false || strlen($hmac) != $this->hmac_size) {
|
||||
user_error('Error reading socket');
|
||||
$this->bitmap = 0;
|
||||
return false;
|
||||
throw new \RuntimeException('Error reading socket');
|
||||
} elseif ($hmac != $this->hmac_check->hash(pack('NNCa*', $this->get_seq_no, $packet_length, $padding_length, $payload . $padding))) {
|
||||
user_error('Invalid HMAC');
|
||||
return false;
|
||||
throw new \RuntimeException('Invalid HMAC');
|
||||
}
|
||||
}
|
||||
|
||||
@ -3041,6 +3031,7 @@ class SSH2
|
||||
*
|
||||
* @param $client_channel
|
||||
* @return Mixed
|
||||
* @throws \RuntimeException on connection error
|
||||
* @access private
|
||||
*/
|
||||
function _get_channel_packet($client_channel, $skip_extended = false)
|
||||
@ -3073,7 +3064,7 @@ class SSH2
|
||||
|
||||
$response = $this->_get_binary_packet();
|
||||
if ($response === false) {
|
||||
user_error('Connection closed by server');
|
||||
throw new \RuntimeException('Connection closed by server');
|
||||
return false;
|
||||
}
|
||||
if ($client_channel == -1 && $response === true) {
|
||||
@ -3123,8 +3114,8 @@ class SSH2
|
||||
return $result;
|
||||
//case NET_SSH2_MSG_CHANNEL_OPEN_FAILURE:
|
||||
default:
|
||||
user_error('Unable to open channel');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
throw new \RuntimeException('Unable to open channel');
|
||||
}
|
||||
break;
|
||||
case NET_SSH2_MSG_CHANNEL_REQUEST:
|
||||
@ -3134,8 +3125,8 @@ class SSH2
|
||||
case NET_SSH2_MSG_CHANNEL_FAILURE:
|
||||
return false;
|
||||
default:
|
||||
user_error('Unable to fulfill channel request');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
throw new \RuntimeException('Unable to fulfill channel request');
|
||||
}
|
||||
case NET_SSH2_MSG_CHANNEL_CLOSE:
|
||||
return $type == NET_SSH2_MSG_CHANNEL_CLOSE ? true : $this->_get_channel_packet($client_channel, $skip_extended);
|
||||
@ -3244,8 +3235,8 @@ class SSH2
|
||||
case NET_SSH2_MSG_CHANNEL_EOF:
|
||||
break;
|
||||
default:
|
||||
user_error('Error reading channel data');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION);
|
||||
throw new \RuntimeException('Error reading channel data');
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -3804,6 +3795,8 @@ class SSH2
|
||||
* is recommended. Returns false if the server signature is not signed correctly with the public host key.
|
||||
*
|
||||
* @return Mixed
|
||||
* @throws \RuntimeException on badly formatted keys
|
||||
* @throws \phpseclib\Exception\NoSupportedAlgorithmsException when the key isn't in a supported format
|
||||
* @access public
|
||||
*/
|
||||
function getServerPublicHostKey()
|
||||
@ -3849,8 +3842,8 @@ class SSH2
|
||||
padding, unsigned, and in network byte order). */
|
||||
$temp = unpack('Nlength', $this->_string_shift($signature, 4));
|
||||
if ($temp['length'] != 40) {
|
||||
user_error('Invalid signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
throw new \RuntimeException('Invalid signature');
|
||||
}
|
||||
|
||||
$r = new BigInteger($this->_string_shift($signature, 20), 256);
|
||||
@ -3861,8 +3854,8 @@ class SSH2
|
||||
case $r->compare($q) >= 0:
|
||||
case $s->equals($zero):
|
||||
case $s->compare($q) >= 0:
|
||||
user_error('Invalid signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
throw new \RuntimeException('Invalid signature');
|
||||
}
|
||||
|
||||
$w = $s->modInverse($q);
|
||||
@ -3881,7 +3874,7 @@ class SSH2
|
||||
list(, $v) = $v->divide($q);
|
||||
|
||||
if (!$v->equals($r)) {
|
||||
user_error('Bad server signature');
|
||||
//user_error('Bad server signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE);
|
||||
}
|
||||
|
||||
@ -3903,7 +3896,7 @@ class SSH2
|
||||
$rsa->setSignatureMode(RSA::SIGNATURE_PKCS1);
|
||||
$rsa->loadKey(array('e' => $e, 'n' => $n), RSA::PUBLIC_FORMAT_RAW);
|
||||
if (!$rsa->verify($this->exchange_hash, $signature)) {
|
||||
user_error('Bad server signature');
|
||||
//user_error('Bad server signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE);
|
||||
}
|
||||
*/
|
||||
@ -3918,8 +3911,8 @@ class SSH2
|
||||
// also, see SSHRSA.c (rsa2_verifysig) in PuTTy's source.
|
||||
|
||||
if ($s->compare(new BigInteger()) < 0 || $s->compare($n->subtract(new BigInteger(1))) > 0) {
|
||||
user_error('Invalid signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED);
|
||||
throw new \RuntimeException('Invalid signature');
|
||||
}
|
||||
|
||||
$s = $s->modPow($e, $n);
|
||||
@ -3929,13 +3922,13 @@ class SSH2
|
||||
$h = chr(0x01) . str_repeat(chr(0xFF), $nLength - 2 - strlen($h)) . $h;
|
||||
|
||||
if ($s != $h) {
|
||||
user_error('Bad server signature');
|
||||
//user_error('Bad server signature');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
user_error('Unsupported signature format');
|
||||
return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE);
|
||||
$this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE);
|
||||
throw new NoSupportedAlgorithmsException('Unsupported signature format');
|
||||
}
|
||||
|
||||
return $this->signature_format . ' ' . base64_encode($this->server_public_host_key);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user