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Add SFTPv2 support

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Thanks bitvise for providing an SFTP client that does SFTPv2 and to faceleg for bringing the issue to my attention!
This commit is contained in:
terrafrost 2012-10-09 00:56:50 -05:00
parent 7ba006ccdc
commit c65f5ba0e5
1 changed files with 44 additions and 40 deletions
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84
phpseclib/Net/SFTP.php
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@ -452,8 +452,12 @@ class Net_SFTP extends Net_SSH2 {
in draft-ietf-secsh-filexfer-13 would be quite impossible. As such, what Net_SFTP would do is close the
channel and reopen it with a new and updated SSH_FXP_INIT packet.
*/
if ($this->version != 3) {
return false;
switch ($this->version) {
case 2:
case 3:
break;
default:
return false;
}
$this->pwd = $this->_realpath('.', false);
@ -474,6 +478,25 @@ class Net_SFTP extends Net_SSH2 {
return $this->pwd;
}
/**
* Logs errors
*
* @param String $response
* @param optional Boolean $extract_code
* @access public
*/
function _logError($response, $extract_code = true) {
if ($extract_code) {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
$error = $this->status_codes[$status];
}
if ($this->version > 2) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
}
}
/**
* Canonicalize the Server-Side Path Name
*
@ -557,8 +580,7 @@ class Net_SFTP extends Net_SSH2 {
$this->fileType = $this->_parseLongname($this->_string_shift($response, $length));
break;
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
default:
user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS', E_USER_NOTICE);
@ -611,8 +633,7 @@ class Net_SFTP extends Net_SSH2 {
$handle = substr($response, 4);
break;
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
default:
user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
@ -631,8 +652,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}
@ -699,8 +719,7 @@ class Net_SFTP extends Net_SSH2 {
break;
case NET_SFTP_STATUS:
// presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
default:
user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
@ -747,8 +766,7 @@ class Net_SFTP extends Net_SSH2 {
case NET_SFTP_STATUS:
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_EOF) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}
break 2;
@ -772,8 +790,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, true);
return false;
}
@ -966,8 +983,7 @@ class Net_SFTP extends Net_SSH2 {
}
return $attributes;
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
}
@ -1070,8 +1086,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
}
// rather than return what the permissions *should* be, we'll return what they actually are. this will also
@ -1088,8 +1103,7 @@ class Net_SFTP extends Net_SSH2 {
$attrs = $this->_parseAttributes($response);
return $attrs['permissions'];
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
}
@ -1201,8 +1215,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}
@ -1242,8 +1255,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
// presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED?
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}
@ -1310,8 +1322,7 @@ class Net_SFTP extends Net_SSH2 {
$handle = substr($response, 4);
break;
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
default:
user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
@ -1380,8 +1391,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}
@ -1409,8 +1419,7 @@ class Net_SFTP extends Net_SSH2 {
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
break;
}
}
@ -1452,8 +1461,7 @@ class Net_SFTP extends Net_SSH2 {
$handle = substr($response, 4);
break;
case NET_SFTP_STATUS: // presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
return false;
default:
user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
@ -1491,8 +1499,7 @@ class Net_SFTP extends Net_SSH2 {
}
break;
case NET_SFTP_STATUS:
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
break 2;
default:
user_error('Expected SSH_FXP_DATA or SSH_FXP_STATUS', E_USER_NOTICE);
@ -1517,8 +1524,7 @@ class Net_SFTP extends Net_SSH2 {
return false;
}
extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
// check the status from the NET_SFTP_STATUS case in the above switch after the file has been closed
if ($status != NET_SFTP_STATUS_OK) {
@ -1565,8 +1571,7 @@ class Net_SFTP extends Net_SSH2 {
// if $status isn't SSH_FX_OK it's probably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response);
if (!$recursive) {
return false;
}
@ -1681,8 +1686,7 @@ class Net_SFTP extends Net_SSH2 {
// if $status isn't SSH_FX_OK it's probably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED
extract(unpack('Nstatus', $this->_string_shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
extract(unpack('Nlength', $this->_string_shift($response, 4)));
$this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length);
$this->_logError($response, false);
return false;
}