与SFTP上传：不使用CURLOPT_SSLKEY(uploading with SFTP : CU

我已经通过SFTP文件从一个服务器到另一个上传

这里是我的SFTP（）函数：

function transfert_curl_sftp($local_filename, $distant_filename, $host_destination, $user_destination,$pubkey_filename,$privkey_filename,$port) {
if ( !extension_loaded('curl') ) return 'no_curl_extension';
$distant_filename = ltrim($distant_filename,'/');

$fp = fopen($local_filenam, 'r');
$sftp_server = $host_destination.'/'.$distant_filename;
$curl = curl_init();
curl_setopt($curl, CURLOPT_UPLOAD, TRUE);
curl_setopt($curl, CURLOPT_HEADER, TRUE);
curl_setopt($curl, CURLOPT_VERBOSE, TRUE);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($curl, CURLOPT_PROTOCOLS, CURLPROTO_SFTP); 
curl_setopt($curl, CURLOPT_NOPROGRESS, FALSE);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE);

$trace = tempnam( dirname($local_filenam),'temp_curl_' );
$fptrace = fopen($trace, 'w');
curl_setopt($curl, CURLOPT_FILE, $fptrace);
curl_setopt($curl, CURLOPT_STDERR, $fptrace);

curl_setopt($curl, CURLOPT_URL, 'sftp://@'.$sftp_server);
curl_setopt($curl, CURLOPT_PORT, $port);
curl_setopt($curl, CURLOPT_USERPWD, $user_destination.':');
curl_setopt($curl, CURLOPT_SSH_PUBLIC_KEYFILE, $pubkey_filename);
curl_setopt($curl, CURLOPT_SSLENGINE, '');
curl_setopt($curl, CURLOPT_SSLKEY, $privkey_filename);
curl_setopt($curl, CURLOPT_SSLKEYPASSWD, '');

curl_setopt($curl, CURLOPT_INFILESIZE, filesize($local_file));
curl_setopt($curl, CURLOPT_INFILE, $fp);

$info = curl_getinfo($curl);
$start_error_no = curl_errno($curl);
$valid_operation = curl_exec($curl);   
$final_error_no = curl_errno($curl);
curl_close($curl);
fclose($fp);
fclose($fptrace);

echo '<pre>trace:',file_get_contents($trace),'<hr>'; var_dump($start_error_no,$valid_operation,$final_error_no);

return true;
}

该文件是永远不会上传:-(

当我看着跟踪文件，我看到所以我认为这是CURLOPT_SSLKEY“参数没有真正建立......我所有的密钥文件都是OK的阅读...

它是一个PHP错误？或者我不写东西？

SFTP协议使用SSH2来保护连接，所以你需要提供一个SSH私钥，而不是SSL的一个。 SSH和SSL 2层不同的方法来确保（连接他们的区别更多的细节）。

所以，你应该更换：

curl_setopt($curl, CURLOPT_SSLENGINE, '');
curl_setopt($curl, CURLOPT_SSLKEY, $privkey_filename);
curl_setopt($curl, CURLOPT_SSLKEYPASSWD, '');

通过：

curl_setopt($curl, CURLOPT_SSH_AUTH_TYPES, CURLSSH_AUTH_PUBLICKEY);
curl_setopt($curl, CURLOPT_SSH_PUBLIC_KEYFILE, $pubkey_filename); // you already did it
curl_setopt($curl, CURLOPT_SSH_PRIVATE_KEYFILE, $privkey_filename);
curl_setopt($curl, CURLOPT_KEYPASSWD, '');