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Merge branch '2.0-channel-request-updates' into master-channel-request-updates

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This commit is contained in:
terrafrost 2017-12-25 19:12:57 -06:00
commit 3c96ca9fd1
1 changed files with 82 additions and 85 deletions
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167
phpseclib/Net/SSH2.php
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@ -3670,35 +3670,89 @@ class SSH2
$this->window_size_server_to_client[$channel]+= $this->window_size;
}
if ($type == NET_SSH2_MSG_CHANNEL_EXTENDED_DATA) {
/*
if ($client_channel == NET_SSH2_CHANNEL_EXEC) {
$this->_send_channel_packet($client_channel, chr(0));
}
*/
// currently, there's only one possible value for $data_type_code: NET_SSH2_EXTENDED_DATA_STDERR
if (strlen($response) < 8) {
return false;
}
extract(unpack('Ndata_type_code/Nlength', Strings::shift($response, 8)));
/**
* @var integer $data_type_code
* @var integer $length
*/
$data = Strings::shift($response, $length);
$this->stdErrorLog.= $data;
if ($skip_extended || $this->quiet_mode) {
continue;
}
if ($client_channel == $channel && $this->channel_status[$channel] == NET_SSH2_MSG_CHANNEL_DATA) {
return $data;
}
if (!isset($this->channel_buffers[$channel])) {
$this->channel_buffers[$channel] = [];
}
$this->channel_buffers[$channel][] = $data;
switch ($type) {
case NET_SSH2_MSG_CHANNEL_EXTENDED_DATA:
/*
if ($client_channel == NET_SSH2_CHANNEL_EXEC) {
$this->_send_channel_packet($client_channel, chr(0));
}
*/
// currently, there's only one possible value for $data_type_code: NET_SSH2_EXTENDED_DATA_STDERR
if (strlen($response) < 8) {
return false;
}
extract(unpack('Ndata_type_code/Nlength', Strings::shift($response, 8)));
$data = Strings::shift($response, $length);
$this->stdErrorLog.= $data;
if ($skip_extended || $this->quiet_mode) {
continue 2;
}
if ($client_channel == $channel && $this->channel_status[$channel] == NET_SSH2_MSG_CHANNEL_DATA) {
return $data;
}
if (!isset($this->channel_buffers[$channel])) {
$this->channel_buffers[$channel] = array();
}
$this->channel_buffers[$channel][] = $data;
continue;
continue 2;
case NET_SSH2_MSG_CHANNEL_REQUEST:
if ($this->channel_status[$channel] == NET_SSH2_MSG_CHANNEL_CLOSE) {
continue 2;
}
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nlength', Strings::shift($response, 4)));
$value = Strings::shift($response, $length);
switch ($value) {
case 'exit-signal':
Strings::shift($response, 1);
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nlength', Strings::shift($response, 4)));
/** @var integer $length */
$this->errors[] = 'SSH_MSG_CHANNEL_REQUEST (exit-signal): ' . Strings::shift($response, $length);
$this->_string_shift($response, 1);
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nlength', Strings::shift($response, 4)));
/** @var integer $length */
if ($length) {
$this->errors[count($this->errors)].= "\r\n" . Strings::shift($response, $length);
}
$this->send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_EOF, $this->server_channels[$client_channel]));
$this->send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$channel]));
$this->channel_status[$channel] = NET_SSH2_MSG_CHANNEL_EOF;
continue 3;
case 'exit-status':
if (strlen($response) < 5) {
return false;
}
extract(unpack('Cfalse/Nexit_status', Strings::shift($response, 5)));
/**
* @var integer $false
* @var integer $exit_status
*/
$this->exit_status = $exit_status;
// "The client MAY ignore these messages."
// -- http://tools.ietf.org/html/rfc4254#section-6.10
continue 3;
default:
// "Some systems may not implement signals, in which case they SHOULD ignore this message."
// -- http://tools.ietf.org/html/rfc4254#section-6.9
continue 3;
}
}
switch ($this->channel_status[$channel]) {
@ -3789,63 +3843,6 @@ class SSH2
}
$this->channel_buffers[$channel][] = $data;
break;
case NET_SSH2_MSG_CHANNEL_REQUEST:
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nlength', Strings::shift($response, 4)));
/** @var integer $length */
$value = Strings::shift($response, $length);
switch ($value) {
case 'exit-signal':
Strings::shift($response, 1);
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nlength', Strings::shift($response, 4)));
/** @var integer $length */
$this->errors[] = 'SSH_MSG_CHANNEL_REQUEST (exit-signal): ' . Strings::shift($response, $length);
if (strlen($response) < 4) {
return false;
}
Strings::shift($response, 1);
extract(unpack('Nlength', Strings::shift($response, 4)));
/** @var integer $length */
if ($length) {
$this->errors[count($this->errors)].= "\r\n" . Strings::shift($response, $length);
}
$this->send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_EOF, $this->server_channels[$client_channel]));
$this->send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$channel]));
$this->channel_status[$channel] = NET_SSH2_MSG_CHANNEL_EOF;
break;
case 'exit-status':
if (strlen($response) < 5) {
return false;
}
extract(unpack('Cfalse/Nexit_status', Strings::shift($response, 5)));
/**
* @var integer $false
* @var integer $exit_status
*/
$this->exit_status = $exit_status;
// "The client MAY ignore these messages."
// -- http://tools.ietf.org/html/rfc4254#section-6.10
break;
default:
// "Some systems may not implement signals, in which case they SHOULD ignore this message."
// -- http://tools.ietf.org/html/rfc4254#section-6.9
break;
}
break;
case NET_SSH2_MSG_CHANNEL_CLOSE:
$this->curTimeout = 0;