ssh2_sftp_unlink
In
$stream = fopen("ssh2.sftp://$sftp/path/to/file", 'r');
please make sure that you are specifying the "absolute" path to a file.
If not, you'll get errors like
"Unable to open file ..."
The reasoning is simple ... ssh2.sftp://$sftp points to the "root" directory on the remote server, where, most likely, one does not have access.
It is necessary to point it to your "home" directory. For example, "ssh2.sftp://$sftp/home/username/filename" ... where "/home/username" is where your home directory is.
ssh2_sftp
(PECL ssh2 >= 0.9.0)
ssh2_sftp — Initialise un sous-système SFTP
Description
resource ssh2_sftp
( resource
$session
)Demande un sous-système SFTP depuis un serveur déjà connecté SSH2.
Liste de paramètres
-
session -
Un identifiant de connexion SSH, obtenu depuis la fonction ssh2_connect().
Valeurs de retour
Cette méthode retourne une ressource SSH2 SFTP pour utilisation avec toutes les méthodes ssh2_sftp_*() ainsi que le gestionnaire ouvert ssh2.sftp://.
Exemples
Exemple #1 Ouverture d'un fichier via SFTP
<?php
$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');
$sftp = ssh2_sftp($connection);
$stream = fopen("ssh2.sftp://$sftp/path/to/file", 'r');
?>
add a note
User Contributed Notes
ssh2_sftp
sandipshah at vthrive dot com
16-Nov-2009 03:05
bas weerman
08-Jul-2008 03:13
I changed the read function to:
public function receiveFile($remote_file, $local_file)
{
$sftp = $this->sftp;
$stream = @fopen("ssh2.sftp://$sftp$remote_file", 'r');
if (! $stream)
throw new Exception("Could not open file: $remote_file");
$size = $this->getFileSize($remote_file);
$contents = '';
$read = 0;
$len = $size;
while ($read < $len && ($buf = fread($stream, $len - $read))) {
$read += strlen($buf);
$contents .= $buf;
}
file_put_contents ($local_file, $contents);
@fclose($stream);
}
public function getFileSize($file){
$sftp = $this->sftp;
return filesize("ssh2.sftp://$sftp$file");
}
tom at r dot je
02-Jul-2008 09:33
Not sure if this is a bug of some kind of security feature.
When reading files using ssh2.sftp anything inside php tags is inexplicably stripped.
foo.php
one
<?
echo 'two';
?>
echo 'three';
$stream = fopen("ssh2.sftp://$sftp$file", 'r');
echo filesize("ssh2.sftp://$sftp$file"); //CORRECT
echo fread($stream, filesize("ssh2.sftp://$sftp$file")); //prints "onethree"
Not sure why this happens and haven't found a workaround.
bas weerman
14-May-2008 12:22
I added some functionality for scanning the filesystem and receiving and deleting files.
class SFTPConnection
{
private $connection;
private $sftp;
public function __construct($host, $port=22)
{
$this->connection = @ssh2_connect($host, $port);
if (! $this->connection)
throw new Exception("Could not connect to $host on port $port.");
}
public function login($username, $password)
{
if (! @ssh2_auth_password($this->connection, $username, $password))
throw new Exception("Could not authenticate with username $username " . "and password $password.");
$this->sftp = @ssh2_sftp($this->connection);
if (! $this->sftp)
throw new Exception("Could not initialize SFTP subsystem.");
}
public function uploadFile($local_file, $remote_file)
{
$sftp = $this->sftp;
$stream = @fopen("ssh2.sftp://$sftp$remote_file", 'w');
if (! $stream)
throw new Exception("Could not open file: $remote_file");
$data_to_send = @file_get_contents($local_file);
if ($data_to_send === false)
throw new Exception("Could not open local file: $local_file.");
if (@fwrite($stream, $data_to_send) === false)
throw new Exception("Could not send data from file: $local_file.");
@fclose($stream);
}
function scanFilesystem($remote_file) {
$sftp = $this->sftp;
$dir = "ssh2.sftp://$sftp$remote_file";
$tempArray = array();
$handle = opendir($dir);
// List all the files
while (false !== ($file = readdir($handle))) {
if (substr("$file", 0, 1) != "."){
if(is_dir($file)){
// $tempArray[$file] = $this->scanFilesystem("$dir/$file");
} else {
$tempArray[]=$file;
}
}
}
closedir($handle);
return $tempArray;
}
public function receiveFile($remote_file, $local_file)
{
$sftp = $this->sftp;
$stream = @fopen("ssh2.sftp://$sftp$remote_file", 'r');
if (! $stream)
throw new Exception("Could not open file: $remote_file");
$contents = fread($stream, filesize("ssh2.sftp://$sftp$remote_file"));
file_put_contents ($local_file, $contents);
@fclose($stream);
}
public function deleteFile($remote_file){
$sftp = $this->sftp;
unlink("ssh2.sftp://$sftp$remote_file");
}
}
duke1 at drakkon dot net
23-Apr-2008 08:38
if anyone is interested on how to get a directory listing:
$SSH_CONNECTION= ssh2_connect('shell.example.com', 22);
ssh2_auth_password($SSH_CONNECTION, 'username', 'password');
//-------------------------------------------------------------------
//this function finds all files within given directory and returns them
function scanFilesystem($dir) {
$tempArray = array();
$handle = opendir($dir);
// List all the files
while (false !== ($file = readdir($handle))) {
if (substr("$file", 0, 1) != "."){
if(is_dir($file)){
$tempArray[$file]=scanFilesystem("$dir/$file");
} else {
$tempArray[]=$file;
}
}
}
closedir($handle);
return $tempArray;
}
//-------------------------------------------------------------------
$sftp = ssh2_sftp($SSH_CONNECTION);
//code to get listing of all OUTGOING files
$dir = "ssh2.sftp://$sftp/outgoing";
$outgoing = scanFilesystem($dir);
sort($outgoing);
print_r($outgoing);
Curtis Wyatt
28-Jan-2008 07:58
The sftp class provided by David Barnes works great. However, if you get errors about fopen and it failing to open a stream, try the fully qualified path on the remote server.
For example, if you are uploading a file to /Users/username/Sites/file.txt this may not work:
<?php
try {
$sftp = new SFTPConnection("localhost", 22);
$sftp->login("username", "password");
$sftp->uploadFile("/tmp/to_be_sent", "Sites/file.txt");
}
catch (Exception $e) {
echo $e->getMessage() . "\n";
}
?>
but this will:
<?php
try {
$sftp = new SFTPConnection("localhost", 22);
$sftp->login("username", "password");
$sftp->uploadFile("/tmp/to_be_sent", "/Users/username/Sites/file.txt");
}
catch (Exception $e) {
echo $e->getMessage() . "\n";
}
?>
Don't assume that since you are connecting as that user that you are starting in its home space.
Another possible option is that you need to use http://us.php.net/manual/en/function.ssh2-sftp-mkdir.php first to make the directory if it does not exist already, and then upload the file into it.
David Barnes
15-Nov-2006 03:08
Here is an example of how to send a file with SFTP:
<?php
class SFTPConnection
{
private $connection;
private $sftp;
public function __construct($host, $port=22)
{
$this->connection = @ssh2_connect($host, $port);
if (! $this->connection)
throw new Exception("Could not connect to $host on port $port.");
}
public function login($username, $password)
{
if (! @ssh2_auth_password($this->connection, $username, $password))
throw new Exception("Could not authenticate with username $username " .
"and password $password.");
$this->sftp = @ssh2_sftp($this->connection);
if (! $this->sftp)
throw new Exception("Could not initialize SFTP subsystem.");
}
public function uploadFile($local_file, $remote_file)
{
$sftp = $this->sftp;
$stream = @fopen("ssh2.sftp://$sftp$remote_file", 'w');
if (! $stream)
throw new Exception("Could not open file: $remote_file");
$data_to_send = @file_get_contents($local_file);
if ($data_to_send === false)
throw new Exception("Could not open local file: $local_file.");
if (@fwrite($stream, $data_to_send) === false)
throw new Exception("Could not send data from file: $local_file.");
@fclose($stream);
}
}
try
{
$sftp = new SFTPConnection("localhost", 22);
$sftp->login("username", "password");
$sftp->uploadFile("/tmp/to_be_sent", "/tmp/to_be_received");
}
catch (Exception $e)
{
echo $e->getMessage() . "\n";
}
?>