diff options
| author | Friendika <info@friendika.com> | 2011-06-28 21:11:52 -0700 |
|---|---|---|
| committer | Friendika <info@friendika.com> | 2011-06-28 21:11:52 -0700 |
| commit | 0b221e8945ae785dc706d8ea9a9e8e25532c0096 (patch) | |
| tree | 52d4978006b028c24ee1feb3cf6ba2907a48c88f /phpsec/Net/SFTP.php | |
| parent | 60caa0349416dad1a3a891e3c0e00d33d25d7a91 (diff) | |
| download | volse-hubzilla-0b221e8945ae785dc706d8ea9a9e8e25532c0096.tar.gz volse-hubzilla-0b221e8945ae785dc706d8ea9a9e8e25532c0096.tar.bz2 volse-hubzilla-0b221e8945ae785dc706d8ea9a9e8e25532c0096.zip | |
bug #96 move libraries to library - better alignment of like rotator
Diffstat (limited to 'phpsec/Net/SFTP.php')
| -rw-r--r-- | phpsec/Net/SFTP.php | 1461 |
1 files changed, 0 insertions, 1461 deletions
diff --git a/phpsec/Net/SFTP.php b/phpsec/Net/SFTP.php deleted file mode 100644 index 06812ada3..000000000 --- a/phpsec/Net/SFTP.php +++ /dev/null @@ -1,1461 +0,0 @@ -<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * Pure-PHP implementation of SFTP.
- *
- * PHP versions 4 and 5
- *
- * Currently only supports SFTPv3, which, according to wikipedia.org, "is the most widely used version,
- * implemented by the popular OpenSSH SFTP server". If you want SFTPv4/5/6 support, provide me with access
- * to an SFTPv4/5/6 server.
- *
- * The API for this library is modeled after the API from PHP's {@link http://php.net/book.ftp FTP extension}.
- *
- * Here's a short example of how to use this library:
- * <code>
- * <?php
- * include('Net/SFTP.php');
- *
- * $sftp = new Net_SFTP('www.domain.tld');
- * if (!$sftp->login('username', 'password')) {
- * exit('Login Failed');
- * }
- *
- * echo $sftp->pwd() . "\r\n";
- * $sftp->put('filename.ext', 'hello, world!');
- * print_r($sftp->nlist());
- * ?>
- * </code>
- *
- * LICENSE: This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- * @category Net
- * @package Net_SFTP
- * @author Jim Wigginton <terrafrost@php.net>
- * @copyright MMIX Jim Wigginton
- * @license http://www.gnu.org/licenses/lgpl.txt
- * @version $Id: SFTP.php,v 1.21 2010/04/09 02:31:34 terrafrost Exp $
- * @link http://phpseclib.sourceforge.net
- */
-
-/**
- * Include Net_SSH2
- */
-require_once('Net/SSH2.php');
-
-/**#@+
- * @access public
- * @see Net_SFTP::getLog()
- */
-/**
- * Returns the message numbers
- */
-define('NET_SFTP_LOG_SIMPLE', NET_SSH2_LOG_SIMPLE);
-/**
- * Returns the message content
- */
-define('NET_SFTP_LOG_COMPLEX', NET_SSH2_LOG_COMPLEX);
-/**#@-*/
-
-/**
- * SFTP channel constant
- *
- * Net_SSH2::exec() uses 0 and Net_SSH2::interactiveRead() / Net_SSH2::interactiveWrite() use 1.
- *
- * @see Net_SSH2::_send_channel_packet()
- * @see Net_SSH2::_get_channel_packet()
- * @access private
- */
-define('NET_SFTP_CHANNEL', 2);
-
-/**#@+
- * @access public
- * @see Net_SFTP::put()
- */
-/**
- * Reads data from a local file.
- */
-define('NET_SFTP_LOCAL_FILE', 1);
-/**
- * Reads data from a string.
- */
-define('NET_SFTP_STRING', 2);
-/**#@-*/
-
-/**
- * Pure-PHP implementations of SFTP.
- *
- * @author Jim Wigginton <terrafrost@php.net>
- * @version 0.1.0
- * @access public
- * @package Net_SFTP
- */
-class Net_SFTP extends Net_SSH2 {
- /**
- * Packet Types
- *
- * @see Net_SFTP::Net_SFTP()
- * @var Array
- * @access private
- */
- var $packet_types = array();
-
- /**
- * Status Codes
- *
- * @see Net_SFTP::Net_SFTP()
- * @var Array
- * @access private
- */
- var $status_codes = array();
-
- /**
- * The Request ID
- *
- * The request ID exists in the off chance that a packet is sent out-of-order. Of course, this library doesn't support
- * concurrent actions, so it's somewhat academic, here.
- *
- * @var Integer
- * @see Net_SFTP::_send_sftp_packet()
- * @access private
- */
- var $request_id = false;
-
- /**
- * The Packet Type
- *
- * The request ID exists in the off chance that a packet is sent out-of-order. Of course, this library doesn't support
- * concurrent actions, so it's somewhat academic, here.
- *
- * @var Integer
- * @see Net_SFTP::_get_sftp_packet()
- * @access private
- */
- var $packet_type = -1;
-
- /**
- * Packet Buffer
- *
- * @var String
- * @see Net_SFTP::_get_sftp_packet()
- * @access private
- */
- var $packet_buffer = '';
-
- /**
- * Extensions supported by the server
- *
- * @var Array
- * @see Net_SFTP::_initChannel()
- * @access private
- */
- var $extensions = array();
-
- /**
- * Server SFTP version
- *
- * @var Integer
- * @see Net_SFTP::_initChannel()
- * @access private
- */
- var $version;
-
- /**
- * Current working directory
- *
- * @var String
- * @see Net_SFTP::_realpath()
- * @see Net_SFTP::chdir()
- * @access private
- */
- var $pwd = false;
-
- /**
- * Packet Type Log
- *
- * @see Net_SFTP::getLog()
- * @var Array
- * @access private
- */
- var $packet_type_log = array();
-
- /**
- * Packet Log
- *
- * @see Net_SFTP::getLog()
- * @var Array
- * @access private
- */
- var $packet_log = array();
-
- /**
- * Error information
- *
- * @see Net_SFTP::getSFTPErrors()
- * @see Net_SFTP::getLastSFTPError()
- * @var String
- * @access private
- */
- var $errors = array();
-
- /**
- * Default Constructor.
- *
- * Connects to an SFTP server
- *
- * @param String $host
- * @param optional Integer $port
- * @param optional Integer $timeout
- * @return Net_SFTP
- * @access public
- */
- function Net_SFTP($host, $port = 22, $timeout = 10)
- {
- parent::Net_SSH2($host, $port, $timeout);
- $this->packet_types = array(
- 1 => 'NET_SFTP_INIT',
- 2 => 'NET_SFTP_VERSION',
- /* the format of SSH_FXP_OPEN changed between SFTPv4 and SFTPv5+:
- SFTPv5+: http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.1.1
- pre-SFTPv5 : http://tools.ietf.org/html/draft-ietf-secsh-filexfer-04#section-6.3 */
- 3 => 'NET_SFTP_OPEN',
- 4 => 'NET_SFTP_CLOSE',
- 5 => 'NET_SFTP_READ',
- 6 => 'NET_SFTP_WRITE',
- 8 => 'NET_SFTP_FSTAT',
- 9 => 'NET_SFTP_SETSTAT',
- 11 => 'NET_SFTP_OPENDIR',
- 12 => 'NET_SFTP_READDIR',
- 13 => 'NET_SFTP_REMOVE',
- 14 => 'NET_SFTP_MKDIR',
- 15 => 'NET_SFTP_RMDIR',
- 16 => 'NET_SFTP_REALPATH',
- 17 => 'NET_SFTP_STAT',
- /* the format of SSH_FXP_RENAME changed between SFTPv4 and SFTPv5+:
- SFTPv5+: http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.3
- pre-SFTPv5 : http://tools.ietf.org/html/draft-ietf-secsh-filexfer-04#section-6.5 */
- 18 => 'NET_SFTP_RENAME',
-
- 101=> 'NET_SFTP_STATUS',
- 102=> 'NET_SFTP_HANDLE',
- /* the format of SSH_FXP_NAME changed between SFTPv3 and SFTPv4+:
- SFTPv4+: http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-9.4
- pre-SFTPv4 : http://tools.ietf.org/html/draft-ietf-secsh-filexfer-02#section-7 */
- 103=> 'NET_SFTP_DATA',
- 104=> 'NET_SFTP_NAME',
- 105=> 'NET_SFTP_ATTRS',
-
- 200=> 'NET_SFTP_EXTENDED'
- );
- $this->status_codes = array(
- 0 => 'NET_SFTP_STATUS_OK',
- 1 => 'NET_SFTP_STATUS_EOF',
- 2 => 'NET_SFTP_STATUS_NO_SUCH_FILE',
- 3 => 'NET_SFTP_STATUS_PERMISSION_DENIED',
- 4 => 'NET_SFTP_STATUS_FAILURE',
- 5 => 'NET_SFTP_STATUS_BAD_MESSAGE',
- 6 => 'NET_SFTP_STATUS_NO_CONNECTION',
- 7 => 'NET_SFTP_STATUS_CONNECTION_LOST',
- 8 => 'NET_SFTP_STATUS_OP_UNSUPPORTED'
- );
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-7.1
- // the order, in this case, matters quite a lot - see Net_SFTP::_parseAttributes() to understand why
- $this->attributes = array(
- 0x00000001 => 'NET_SFTP_ATTR_SIZE',
- 0x00000002 => 'NET_SFTP_ATTR_UIDGID', // defined in SFTPv3, removed in SFTPv4+
- 0x00000004 => 'NET_SFTP_ATTR_PERMISSIONS',
- 0x00000008 => 'NET_SFTP_ATTR_ACCESSTIME',
- -1 => 'NET_SFTP_ATTR_EXTENDED' // unpack('N', "\xFF\xFF\xFF\xFF") == array(1 => int(-1))
- );
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-04#section-6.3
- // the flag definitions change somewhat in SFTPv5+. if SFTPv5+ support is added to this library, maybe name
- // the array for that $this->open5_flags and similarily alter the constant names.
- $this->open_flags = array(
- 0x00000001 => 'NET_SFTP_OPEN_READ',
- 0x00000002 => 'NET_SFTP_OPEN_WRITE',
- 0x00000008 => 'NET_SFTP_OPEN_CREATE',
- 0x00000010 => 'NET_SFTP_OPEN_TRUNCATE'
- );
- $this->_define_array(
- $this->packet_types,
- $this->status_codes,
- $this->attributes,
- $this->open_flags
- );
- }
-
- /**
- * Login
- *
- * @param String $username
- * @param optional String $password
- * @return Boolean
- * @access public
- */
- function login($username, $password = '')
- {
- if (!parent::login($username, $password)) {
- return false;
- }
-
- $this->window_size_client_to_server[NET_SFTP_CHANNEL] = $this->window_size;
-
- $packet = pack('CNa*N3',
- NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SFTP_CHANNEL, $this->window_size, 0x4000);
-
- if (!$this->_send_binary_packet($packet)) {
- return false;
- }
-
- $this->channel_status[NET_SFTP_CHANNEL] = NET_SSH2_MSG_CHANNEL_OPEN;
-
- $response = $this->_get_channel_packet(NET_SFTP_CHANNEL);
- if ($response === false) {
- return false;
- }
-
- $packet = pack('CNNa*CNa*',
- NET_SSH2_MSG_CHANNEL_REQUEST, $this->server_channels[NET_SFTP_CHANNEL], strlen('subsystem'), 'subsystem', 1, strlen('sftp'), 'sftp');
- if (!$this->_send_binary_packet($packet)) {
- return false;
- }
-
- $this->channel_status[NET_SFTP_CHANNEL] = NET_SSH2_MSG_CHANNEL_REQUEST;
-
- $response = $this->_get_channel_packet(NET_SFTP_CHANNEL);
- if ($response === false) {
- return false;
- }
-
- $this->channel_status[NET_SFTP_CHANNEL] = NET_SSH2_MSG_CHANNEL_DATA;
-
- if (!$this->_send_sftp_packet(NET_SFTP_INIT, "\0\0\0\3")) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_VERSION) {
- user_error('Expected SSH_FXP_VERSION', E_USER_NOTICE);
- return false;
- }
-
- extract(unpack('Nversion', $this->_string_shift($response, 4)));
- $this->version = $version;
- while (!empty($response)) {
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $key = $this->_string_shift($response, $length);
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $value = $this->_string_shift($response, $length);
- $this->extensions[$key] = $value;
- }
-
- /*
- SFTPv4+ defines a 'newline' extension. SFTPv3 seems to have unofficial support for it via 'newline@vandyke.com',
- however, I'm not sure what 'newline@vandyke.com' is supposed to do (the fact that it's unofficial means that it's
- not in the official SFTPv3 specs) and 'newline@vandyke.com' / 'newline' are likely not drop-in substitutes for
- one another due to the fact that 'newline' comes with a SSH_FXF_TEXT bitmask whereas it seems unlikely that
- 'newline@vandyke.com' would.
- */
- /*
- if (isset($this->extensions['newline@vandyke.com'])) {
- $this->extensions['newline'] = $this->extensions['newline@vandyke.com'];
- unset($this->extensions['newline@vandyke.com']);
- }
- */
-
- $this->request_id = 1;
-
- /*
- A Note on SFTPv4/5/6 support:
- <http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-5.1> states the following:
-
- "If the client wishes to interoperate with servers that support noncontiguous version
- numbers it SHOULD send '3'"
-
- Given that the server only sends its version number after the client has already done so, the above
- seems to be suggesting that v3 should be the default version. This makes sense given that v3 is the
- most popular.
-
- <http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-5.5> states the following;
-
- "If the server did not send the "versions" extension, or the version-from-list was not included, the
- server MAY send a status response describing the failure, but MUST then close the channel without
- processing any further requests."
-
- So what do you do if you have a client whose initial SSH_FXP_INIT packet says it implements v3 and
- a server whose initial SSH_FXP_VERSION reply says it implements v4 and only v4? If it only implements
- v4, the "versions" extension is likely not going to have been sent so version re-negotiation as discussed
- in draft-ietf-secsh-filexfer-13 would be quite impossible. As such, what Net_SFTP would do is close the
- channel and reopen it with a new and updated SSH_FXP_INIT packet.
- */
- if ($this->version != 3) {
- return false;
- }
-
- $this->pwd = $this->_realpath('.');
-
- return true;
- }
-
- /**
- * Returns the current directory name
- *
- * @return Mixed
- * @access public
- */
- function pwd()
- {
- return $this->pwd;
- }
-
- /**
- * Canonicalize the Server-Side Path Name
- *
- * SFTP doesn't provide a mechanism by which the current working directory can be changed, so we'll emulate it. Returns
- * the absolute (canonicalized) path. If $mode is set to NET_SFTP_CONFIRM_DIR (as opposed to NET_SFTP_CONFIRM_NONE,
- * which is what it is set to by default), false is returned if $dir is not a valid directory.
- *
- * @see Net_SFTP::chdir()
- * @param String $dir
- * @param optional Integer $mode
- * @return Mixed
- * @access private
- */
- function _realpath($dir)
- {
- /*
- "This protocol represents file names as strings. File names are
- assumed to use the slash ('/') character as a directory separator.
-
- File names starting with a slash are "absolute", and are relative to
- the root of the file system. Names starting with any other character
- are relative to the user's default directory (home directory). Note
- that identifying the user is assumed to take place outside of this
- protocol."
-
- -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-6
- */
- $file = '';
- if ($this->pwd !== false) {
- // if the SFTP server returned the canonicalized path even for non-existant files this wouldn't be necessary
- // on OpenSSH it isn't necessary but on other SFTP servers it is. that and since the specs say nothing on
- // the subject, we'll go ahead and work around it with the following.
- if ($dir[strlen($dir) - 1] != '/') {
- $file = basename($dir);
- $dir = dirname($dir);
- }
-
- if ($dir == '.' || $dir == $this->pwd) {
- return $this->pwd . $file;
- }
-
- if ($dir[0] != '/') {
- $dir = $this->pwd . '/' . $dir;
- }
- // on the surface it seems like maybe resolving a path beginning with / is unnecessary, but such paths
- // can contain .'s and ..'s just like any other. we could parse those out as appropriate or we can let
- // the server do it. we'll do the latter.
- }
-
- /*
- that SSH_FXP_REALPATH returns SSH_FXP_NAME does not necessarily mean that anything actually exists at the
- specified path. generally speaking, no attributes are returned with this particular SSH_FXP_NAME packet
- regardless of whether or not a file actually exists. and in SFTPv3, the longname field and the filename
- field match for this particular SSH_FXP_NAME packet. for other SSH_FXP_NAME packets, this will likely
- not be the case, but for this one, it is.
- */
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.9
- if (!$this->_send_sftp_packet(NET_SFTP_REALPATH, pack('Na*', strlen($dir), $dir))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_NAME:
- // although SSH_FXP_NAME is implemented differently in SFTPv3 than it is in SFTPv4+, the following
- // should work on all SFTP versions since the only part of the SSH_FXP_NAME packet the following looks
- // at is the first part and that part is defined the same in SFTP versions 3 through 6.
- $this->_string_shift($response, 4); // skip over the count - it should be 1, anyway
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $realpath = $this->_string_shift($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);
- return false;
- default:
- user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- // if $this->pwd isn't set than the only thing $realpath could be is for '.', which is pretty much guaranteed to
- // be a bonafide directory
- return $realpath . '/' . $file;
- }
-
- /**
- * Changes the current directory
- *
- * @param String $dir
- * @return Boolean
- * @access public
- */
- function chdir($dir)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- if ($dir[strlen($dir) - 1] != '/') {
- $dir.= '/';
- }
- $dir = $this->_realpath($dir);
-
- // confirm that $dir is, in fact, a valid directory
- if (!$this->_send_sftp_packet(NET_SFTP_OPENDIR, pack('Na*', strlen($dir), $dir))) {
- return false;
- }
-
- // see Net_SFTP::nlist() for a more thorough explanation of the following
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_HANDLE:
- $handle = substr($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, $length);
- return false;
- default:
- user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- return false;
- }
-
- $this->pwd = $dir;
- return true;
- }
-
- /**
- * Returns a list of files in the given directory
- *
- * @param optional String $dir
- * @return Mixed
- * @access public
- */
- function nlist($dir = '.')
- {
- return $this->_list($dir, false);
- }
-
- /**
- * Returns a list of files in the given directory
- *
- * @param optional String $dir
- * @return Mixed
- * @access public
- */
- function rawlist($dir = '.')
- {
- return $this->_list($dir, true);
- }
-
- function _list($dir, $raw = true)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $dir = $this->_realpath($dir);
- if ($dir === false) {
- return false;
- }
-
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.1.2
- if (!$this->_send_sftp_packet(NET_SFTP_OPENDIR, pack('Na*', strlen($dir), $dir))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_HANDLE:
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-9.2
- // since 'handle' is the last field in the SSH_FXP_HANDLE packet, we'll just remove the first four bytes that
- // represent the length of the string and leave it at that
- $handle = substr($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);
- return false;
- default:
- user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- $contents = array();
- while (true) {
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.2.2
- // why multiple SSH_FXP_READDIR packets would be sent when the response to a single one can span arbitrarily many
- // SSH_MSG_CHANNEL_DATA messages is not known to me.
- if (!$this->_send_sftp_packet(NET_SFTP_READDIR, pack('Na*', strlen($handle), $handle))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_NAME:
- extract(unpack('Ncount', $this->_string_shift($response, 4)));
- for ($i = 0; $i < $count; $i++) {
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $shortname = $this->_string_shift($response, $length);
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $this->_string_shift($response, $length); // SFTPv4+ drop this field - the "longname" field
- $attributes = $this->_parseAttributes($response); // we also don't care about the attributes
- if (!$raw) {
- $contents[] = $shortname;
- } else {
- $contents[$shortname] = $attributes;
- }
- // SFTPv6 has an optional boolean end-of-list field, but we'll ignore that, since the
- // final SSH_FXP_STATUS packet should tell us that, already.
- }
- break;
- 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, $length);
- return false;
- }
- break 2;
- default:
- user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
- }
-
- if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) {
- return false;
- }
-
- // "The client MUST release all resources associated with the handle regardless of the status."
- // -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.1.3
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- return false;
- }
-
- return $contents;
- }
-
- /**
- * Returns the file size, in bytes, or false, on failure
- *
- * Files larger than 4GB will show up as being exactly 4GB.
- *
- * @param optional String $dir
- * @return Mixed
- * @access public
- */
- function size($filename)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $filename = $this->_realpath($filename);
- if ($filename === false) {
- return false;
- }
-
- // SFTPv4+ adds an additional 32-bit integer field - flags - to the following:
- $packet = pack('Na*', strlen($filename), $filename);
- if (!$this->_send_sftp_packet(NET_SFTP_STAT, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_ATTRS:
- $attrs = $this->_parseAttributes($response);
- return $attrs['size'];
- 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);
- return false;
- }
-
- user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- /**
- * Set permissions on a file.
- *
- * Returns the new file permissions on success or FALSE on error.
- *
- * @param Integer $mode
- * @param String $filename
- * @return Mixed
- * @access public
- */
- function chmod($mode, $filename)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $filename = $this->_realpath($filename);
- if ($filename === false) {
- return false;
- }
-
- // 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))) {
- 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', E_USER_NOTICE);
- return false;
- }
-
- 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);
- }
-
- // rather than return what the permissions *should* be, we'll return what they actually are. this will also
- // tell us if the file actually exists.
- // incidentally, SFTPv4+ adds an additional 32-bit integer field - flags - to the following:
- $packet = pack('Na*', strlen($filename), $filename);
- if (!$this->_send_sftp_packet(NET_SFTP_STAT, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_ATTRS:
- $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);
- return false;
- }
-
- user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- /**
- * Creates a directory.
- *
- * @param String $dir
- * @return Boolean
- * @access public
- */
- function mkdir($dir)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $dir = $this->_realpath(rtrim($dir, '/'));
- if ($dir === false) {
- return false;
- }
-
- // by not providing any permissions, hopefully the server will use the logged in users umask - their
- // default permissions.
- if (!$this->_send_sftp_packet(NET_SFTP_MKDIR, pack('Na*N', strlen($dir), $dir, 0))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- return false;
- }
-
- return true;
- }
-
- /**
- * Removes a directory.
- *
- * @param String $dir
- * @return Boolean
- * @access public
- */
- function rmdir($dir)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $dir = $this->_realpath($dir);
- if ($dir === false) {
- return false;
- }
-
- if (!$this->_send_sftp_packet(NET_SFTP_RMDIR, pack('Na*', strlen($dir), $dir))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- return false;
- }
-
- return true;
- }
-
- /**
- * Uploads a file to the SFTP server.
- *
- * By default, Net_SFTP::put() does not read from the local filesystem. $data is dumped directly into $remote_file.
- * So, for example, if you set $data to 'filename.ext' and then do Net_SFTP::get(), you will get a file, twelve bytes
- * long, containing 'filename.ext' as its contents.
- *
- * Setting $mode to NET_SFTP_LOCAL_FILE will change the above behavior. With NET_SFTP_LOCAL_FILE, $remote_file will
- * contain as many bytes as filename.ext does on your local filesystem. If your filename.ext is 1MB then that is how
- * large $remote_file will be, as well.
- *
- * Currently, only binary mode is supported. As such, if the line endings need to be adjusted, you will need to take
- * care of that, yourself.
- *
- * @param String $remote_file
- * @param String $data
- * @param optional Integer $flags
- * @return Boolean
- * @access public
- * @internal ASCII mode for SFTPv4/5/6 can be supported by adding a new function - Net_SFTP::setMode().
- */
- function put($remote_file, $data, $mode = NET_SFTP_STRING)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $remote_file = $this->_realpath($remote_file);
- if ($remote_file === false) {
- return false;
- }
-
- $packet = pack('Na*N2', strlen($remote_file), $remote_file, NET_SFTP_OPEN_WRITE | NET_SFTP_OPEN_CREATE | NET_SFTP_OPEN_TRUNCATE, 0);
- if (!$this->_send_sftp_packet(NET_SFTP_OPEN, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_HANDLE:
- $handle = substr($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);
- return false;
- default:
- user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- $initialize = true;
-
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.2.3
- if ($mode == NET_SFTP_LOCAL_FILE) {
- if (!is_file($data)) {
- user_error("$data is not a valid file", E_USER_NOTICE);
- return false;
- }
- $fp = fopen($data, 'rb');
- if (!$fp) {
- return false;
- }
- $sent = 0;
- $size = filesize($data);
- } else {
- $sent = 0;
- $size = strlen($data);
- }
-
- $size = $size < 0 ? ($size & 0x7FFFFFFF) + 0x80000000 : $size;
-
- $sftp_packet_size = 34000; // PuTTY uses 4096
- $i = 0;
- while ($sent < $size) {
- $temp = $mode == NET_SFTP_LOCAL_FILE ? fread($fp, $sftp_packet_size) : $this->_string_shift($data, $sftp_packet_size);
- $packet = pack('Na*N3a*', strlen($handle), $handle, 0, $sent, strlen($temp), $temp);
- if (!$this->_send_sftp_packet(NET_SFTP_WRITE, $packet)) {
- fclose($fp);
- return false;
- }
- $sent+= strlen($temp);
-
- $i++;
-
- if ($i == 50) {
- if (!$this->_read_put_responses($i)) {
- $i = 0;
- break;
- }
- $i = 0;
- }
- }
-
- $this->_read_put_responses($i);
-
- if ($mode == NET_SFTP_LOCAL_FILE) {
- fclose($fp);
- }
-
- if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- return false;
- }
-
- return true;
- }
-
- /**
- * Reads multiple successive SSH_FXP_WRITE responses
- *
- * Sending an SSH_FXP_WRITE packet and immediately reading its response isn't as efficient as blindly sending out $i
- * SSH_FXP_WRITEs, in succession, and then reading $i responses.
- *
- * @param Integer $i
- * @return Boolean
- * @access private
- */
- function _read_put_responses($i)
- {
- while ($i--) {
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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);
- break;
- }
- }
-
- return $i < 0;
- }
-
- /**
- * Downloads a file from the SFTP server.
- *
- * Returns a string containing the contents of $remote_file if $local_file is left undefined or a boolean false if
- * the operation was unsuccessful. If $local_file is defined, returns true or false depending on the success of the
- * operation
- *
- * @param String $remote_file
- * @param optional String $local_file
- * @return Mixed
- * @access public
- */
- function get($remote_file, $local_file = false)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $remote_file = $this->_realpath($remote_file);
- if ($remote_file === false) {
- return false;
- }
-
- $packet = pack('Na*N2', strlen($remote_file), $remote_file, NET_SFTP_OPEN_READ, 0);
- if (!$this->_send_sftp_packet(NET_SFTP_OPEN, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_HANDLE:
- $handle = substr($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);
- return false;
- default:
- user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- $packet = pack('Na*', strlen($handle), $handle);
- if (!$this->_send_sftp_packet(NET_SFTP_FSTAT, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_ATTRS:
- $attrs = $this->_parseAttributes($response);
- 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, $length);
- return false;
- default:
- user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- if ($local_file !== false) {
- $fp = fopen($local_file, 'wb');
- if (!$fp) {
- return false;
- }
- } else {
- $content = '';
- }
-
- $read = 0;
- while ($read < $attrs['size']) {
- $packet = pack('Na*N3', strlen($handle), $handle, 0, $read, 1 << 20);
- if (!$this->_send_sftp_packet(NET_SFTP_READ, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- switch ($this->packet_type) {
- case NET_SFTP_DATA:
- $temp = substr($response, 4);
- $read+= strlen($temp);
- if ($local_file === false) {
- $content.= $temp;
- } else {
- fputs($fp, $temp);
- }
- 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, $length);
- break 2;
- default:
- user_error('Expected SSH_FXP_DATA or SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
- }
-
- if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- 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, $length);
- return false;
- }
-
- if (isset($content)) {
- return $content;
- }
-
- fclose($fp);
- return true;
- }
-
- /**
- * Deletes a file on the SFTP server.
- *
- * @param String $path
- * @return Boolean
- * @access public
- */
- function delete($path)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $remote_file = $this->_realpath($path);
- if ($path === false) {
- return false;
- }
-
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.3
- if (!$this->_send_sftp_packet(NET_SFTP_REMOVE, pack('Na*', strlen($path), $path))) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- // 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);
- return false;
- }
-
- return true;
- }
-
- /**
- * Renames a file or a directory on the SFTP server
- *
- * @param String $oldname
- * @param String $newname
- * @return Boolean
- * @access public
- */
- function rename($oldname, $newname)
- {
- if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) {
- return false;
- }
-
- $oldname = $this->_realpath($oldname);
- $newname = $this->_realpath($newname);
- if ($oldname === false || $newname === false) {
- return false;
- }
-
- // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.3
- $packet = pack('Na*Na*', strlen($oldname), $oldname, strlen($newname), $newname);
- if (!$this->_send_sftp_packet(NET_SFTP_RENAME, $packet)) {
- return false;
- }
-
- $response = $this->_get_sftp_packet();
- if ($this->packet_type != NET_SFTP_STATUS) {
- user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE);
- return false;
- }
-
- // 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);
- return false;
- }
-
- return true;
- }
-
- /**
- * Parse Attributes
- *
- * See '7. File Attributes' of draft-ietf-secsh-filexfer-13 for more info.
- *
- * @param String $response
- * @return Array
- * @access private
- */
- function _parseAttributes(&$response)
- {
- $attr = array();
- extract(unpack('Nflags', $this->_string_shift($response, 4)));
- // SFTPv4+ have a type field (a byte) that follows the above flag field
- foreach ($this->attributes as $key => $value) {
- switch ($flags & $key) {
- case NET_SFTP_ATTR_SIZE: // 0x00000001
- // size is represented by a 64-bit integer, so we perhaps ought to be doing the following:
- // $attr['size'] = new Math_BigInteger($this->_string_shift($response, 8), 256);
- // of course, you shouldn't be using Net_SFTP to transfer files that are in excess of 4GB
- // (0xFFFFFFFF bytes), anyway. as such, we'll just represent all file sizes that are bigger than
- // 4GB as being 4GB.
- extract(unpack('Nupper/Nsize', $this->_string_shift($response, 8)));
- if ($upper) {
- $attr['size'] = 0xFFFFFFFF;
- } else {
- $attr['size'] = $size < 0 ? ($size & 0x7FFFFFFF) + 0x80000000 : $size;
- }
- break;
- case NET_SFTP_ATTR_UIDGID: // 0x00000002 (SFTPv3 only)
- $attr+= unpack('Nuid/Ngid', $this->_string_shift($response, 8));
- break;
- case NET_SFTP_ATTR_PERMISSIONS: // 0x00000004
- $attr+= unpack('Npermissions', $this->_string_shift($response, 4));
- break;
- case NET_SFTP_ATTR_ACCESSTIME: // 0x00000008
- $attr+= unpack('Natime/Nmtime', $this->_string_shift($response, 8));
- break;
- case NET_SFTP_ATTR_EXTENDED: // 0x80000000
- extract(unpack('Ncount', $this->_string_shift($response, 4)));
- for ($i = 0; $i < $count; $i++) {
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $key = $this->_string_shift($response, $length);
- extract(unpack('Nlength', $this->_string_shift($response, 4)));
- $attr[$key] = $this->_string_shift($response, $length);
- }
- }
- }
- return $attr;
- }
-
- /**
- * Sends SFTP Packets
- *
- * See '6. General Packet Format' of draft-ietf-secsh-filexfer-13 for more info.
- *
- * @param Integer $type
- * @param String $data
- * @see Net_SFTP::_get_sftp_packet()
- * @see Net_SSH2::_send_channel_packet()
- * @return Boolean
- * @access private
- */
- function _send_sftp_packet($type, $data)
- {
- $packet = $this->request_id !== false ?
- pack('NCNa*', strlen($data) + 5, $type, $this->request_id, $data) :
- pack('NCa*', strlen($data) + 1, $type, $data);
-
- $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838
- $result = $this->_send_channel_packet(NET_SFTP_CHANNEL, $packet);
- $stop = strtok(microtime(), ' ') + strtok('');
-
- if (defined('NET_SFTP_LOGGING')) {
- $this->packet_type_log[] = '-> ' . $this->packet_types[$type] .
- ' (' . round($stop - $start, 4) . 's)';
- if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) {
- $this->packet_log[] = $data;
- }
- }
-
- return $result;
- }
-
- /**
- * Receives SFTP Packets
- *
- * See '6. General Packet Format' of draft-ietf-secsh-filexfer-13 for more info.
- *
- * Incidentally, the number of SSH_MSG_CHANNEL_DATA messages has no bearing on the number of SFTP packets present.
- * There can be one SSH_MSG_CHANNEL_DATA messages containing two SFTP packets or there can be two SSH_MSG_CHANNEL_DATA
- * messages containing one SFTP packet.
- *
- * @see Net_SFTP::_send_sftp_packet()
- * @return String
- * @access private
- */
- function _get_sftp_packet()
- {
- $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838
-
- // SFTP packet length
- while (strlen($this->packet_buffer) < 4) {
- $temp = $this->_get_channel_packet(NET_SFTP_CHANNEL);
- if (is_bool($temp)) {
- $this->packet_type = false;
- $this->packet_buffer = '';
- return false;
- }
- $this->packet_buffer.= $temp;
- }
- extract(unpack('Nlength', $this->_string_shift($this->packet_buffer, 4)));
- $tempLength = $length;
- $tempLength-= strlen($this->packet_buffer);
-
- // SFTP packet type and data payload
- while ($tempLength > 0) {
- $temp = $this->_get_channel_packet(NET_SFTP_CHANNEL);
- if (is_bool($temp)) {
- $this->packet_type = false;
- $this->packet_buffer = '';
- return false;
- }
- $this->packet_buffer.= $temp;
- $tempLength-= strlen($temp);
- }
-
- $stop = strtok(microtime(), ' ') + strtok('');
-
- $this->packet_type = ord($this->_string_shift($this->packet_buffer));
-
- if ($this->request_id !== false) {
- $this->_string_shift($this->packet_buffer, 4); // remove the request id
- $length-= 5; // account for the request id and the packet type
- } else {
- $length-= 1; // account for the packet type
- }
-
- $packet = $this->_string_shift($this->packet_buffer, $length);
-
- if (defined('NET_SFTP_LOGGING')) {
- $this->packet_type_log[] = '<- ' . $this->packet_types[$this->packet_type] .
- ' (' . round($stop - $start, 4) . 's)';
- if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) {
- $this->packet_log[] = $packet;
- }
- }
-
- return $packet;
- }
-
- /**
- * Returns a log of the packets that have been sent and received.
- *
- * Returns a string if NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX, an array if NET_SFTP_LOGGING == NET_SFTP_LOG_SIMPLE and false if !defined('NET_SFTP_LOGGING')
- *
- * @access public
- * @return String or Array
- */
- function getSFTPLog()
- {
- if (!defined('NET_SFTP_LOGGING')) {
- return false;
- }
-
- switch (NET_SFTP_LOGGING) {
- case NET_SFTP_LOG_COMPLEX:
- return $this->_format_log($this->packet_log, $this->packet_type_log);
- break;
- //case NET_SFTP_LOG_SIMPLE:
- default:
- return $this->packet_type_log;
- }
- }
-
- /**
- * Returns all errors
- *
- * @return String
- * @access public
- */
- function getSFTPErrors()
- {
- return $this->sftp_errors;
- }
-
- /**
- * Returns the last error
- *
- * @return String
- * @access public
- */
- function getLastSFTPError()
- {
- return $this->sftp_errors[count($this->sftp_errors) - 1];
- }
-
- /**
- * Get supported SFTP versions
- *
- * @return Array
- * @access public
- */
- function getSupportedVersions()
- {
- $temp = array('version' => $this->version);
- if (isset($this->extensions['versions'])) {
- $temp['extensions'] = $this->extensions['versions'];
- }
- return $temp;
- }
-
- /**
- * Disconnect
- *
- * @param Integer $reason
- * @return Boolean
- * @access private
- */
- function _disconnect($reason)
- {
- $this->pwd = false;
- parent::_disconnect($reason);
- }
-}
\ No newline at end of file |