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SFTP: Add chown and chgrp.

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This commit is contained in:
terrafrost 2013-02-17 18:23:35 -06:00
parent 4a96cc8024
commit 60b66e3726
1 changed files with 105 additions and 45 deletions
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150
phpseclib/Net/SFTP.php
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@ -1137,10 +1137,49 @@ class Net_SFTP extends Net_SSH2 {
return true;
}
/**
* Changes file or directory owner
*
* Returns TRUE on success or FALSE on error.
*
* @param String $filename
* @param Integer $uid
* @param optional Boolean $recursive
* @return Boolean
* @access public
*/
function chown($filename, $uid, $recursive = false)
{
// quoting from <http://www.kernel.org/doc/man-pages/online/pages/man2/chown.2.html>,
// "if the owner or group is specified as -1, then that ID is not changed"
$attr = pack('N3', NET_SFTP_ATTR_UIDGID, $uid, -1);
return $this->_setstat($filename, $attr, $recursive);
}
/**
* Changes file or directory group
*
* Returns TRUE on success or FALSE on error.
*
* @param String $filename
* @param Integer $gid
* @param optional Boolean $recursive
* @return Boolean
* @access public
*/
function chgrp($filename, $gid, $recursive = false)
{
$attr = pack('N3', NET_SFTP_ATTR_UIDGID, -1, $gid);
return $this->_setstat($filename, $attr, $recursive);
}
/**
* Set permissions on a file.
*
* Returns the new file permissions on success or FALSE on error.
* If $recursive is true than this just returns TRUE or FALSE.
*
* @param Integer $mode
* @param String $filename
@ -1150,51 +1189,18 @@ class Net_SFTP extends Net_SSH2 {
*/
function chmod($mode, $filename, $recursive = false)
{
if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
return false;
}
if (is_string($mode) && is_int($filename)) {
$temp = $mode;
$mode = $filename;
$filename = $temp;
}
$filename = $this->_realpath($filename);
if ($filename === false) {
return false;
}
if ($recursive) {
$i = 0;
$result = $this->_chmod_recursive($mode, $filename, $i);
$this->_read_put_responses($i);
return $result;
}
// SFTPv4+ has an additional byte field - type - that would need to be sent, as well. setting it to
// SSH_FILEXFER_TYPE_UNKNOWN might work. if not, we'd have to do an SSH_FXP_STAT before doing an SSH_FXP_SETSTAT.
$attr = pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777);
if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($filename), $filename, $attr))) {
if (!$this->_setstat($filename, $attr, $recursive)) {
return false;
}
/*
"Because some systems must use separate system calls to set various attributes, it is possible that a failure
response will be returned, but yet some of the attributes may be have been successfully modified. If possible,
servers SHOULD avoid this situation; however, clients MUST be aware that this is possible."
-- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.6
*/
$response = $this->_get_sftp_packet();
if ($this->packet_type != NET_SFTP_STATUS) {
user_error('Expected SSH_FXP_STATUS');
return false;
}
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
$this->_logError($response, $status);
if ($recursive) {
return true;
}
// rather than return what the permissions *should* be, we'll return what they actually are. this will also
@ -1220,16 +1226,72 @@ class Net_SFTP extends Net_SSH2 {
}
/**
* Recursively chmods directories on the SFTP server
* Sets information about a file
*
* Minimizes directory lookups and SSH_FXP_STATUS requests for speed.
*
* @param Integer $mode
* @param String $filename
* @param String $attr
* @param Boolean $recursive
* @return Boolean
* @access private
*/
function _chmod_recursive($mode, $path, &$i)
function _setstat($filename, $attr, $recursive)
{
if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
return false;
}
$filename = $this->_realpath($filename);
if ($filename === false) {
return false;
}
if ($recursive) {
$i = 0;
$result = $this->_setstat_recursive($filename, $attr, $i);
$this->_read_put_responses($i);
return $result;
}
// SFTPv4+ has an additional byte field - type - that would need to be sent, as well. setting it to
// SSH_FILEXFER_TYPE_UNKNOWN might work. if not, we'd have to do an SSH_FXP_STAT before doing an SSH_FXP_SETSTAT.
if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($filename), $filename, $attr))) {
return false;
}
/*
"Because some systems must use separate system calls to set various attributes, it is possible that a failure
response will be returned, but yet some of the attributes may be have been successfully modified. If possible,
servers SHOULD avoid this situation; however, clients MUST be aware that this is possible."
-- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.6
*/
$response = $this->_get_sftp_packet();
if ($this->packet_type != NET_SFTP_STATUS) {
user_error('Expected SSH_FXP_STATUS');
return false;
}
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
$this->_logError($response, $status);
return false;
}
return true;
}
/**
* Recursively sets information on directories on the SFTP server
*
* Minimizes directory lookups and SSH_FXP_STATUS requests for speed.
*
* @param String $path
* @param String $attr
* @param Integer $i
* @return Boolean
* @access private
*/
function _setstat_recursive($path, $attr, &$i)
{
if (!$this->_read_put_responses($i)) {
return false;
@ -1238,7 +1300,7 @@ class Net_SFTP extends Net_SSH2 {
$entries = $this->_list($path, true, false);
if ($entries === false) {
return $this->chmod($mode, $path);
return $this->_setstat($path, $attr, false);
}
// normally $entries would have at least . and .. but it might not if the directories
@ -1258,11 +1320,10 @@ class Net_SFTP extends Net_SSH2 {
$temp = $path . '/' . $filename;
if ($props['type'] == NET_SFTP_TYPE_DIRECTORY) {
if (!$this->_chmod_recursive($mode, $temp, $i)) {
if (!$this->_setstat_recursive($temp, $attr, $i)) {
return false;
}
} else {
$attr = pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777);
if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($temp), $temp, $attr))) {
return false;
}
@ -1278,7 +1339,6 @@ class Net_SFTP extends Net_SSH2 {
}
}
$attr = pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777);
if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($path), $path, $attr))) {
return false;
}