Permission denied when tring to download file from SFTP server using cURL in PHP

Question

I'm trying to shorten the time needed to download a file from SFTP by integrating SFTP and cURL.

My codes are as below:

$host = "192.168.1.1";
$username = "testuser";
$password = "testpass";
$fn = 'testfile.zip';
$remote = "sftp://".$username.":".$password ."@".$host.":22/home/testfolder/saleskits/".$fn;

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $remote); #input
curl_setopt($curl, CURLOPT_PROTOCOLS, CURLPROTO_SFTP);
curl_exec($curl);
if (!curl_errno($curl)) {
    $info = curl_getinfo($curl);
    echo 'Took ', $info['total_time'], ' seconds to send a request to ', $info['url'], "\n";
}
else{
    echo 'Curl error: ' . curl_error($curl);
}
curl_close($curl);

and the output is "Curl error: Could not open remote file for reading: Permission denied ". How can I get passed the permission or change the permission of the file?

Answer 1

The cURL URL does not contain port according to documentation. Also SFTP defaults to 22 so it is bogus in your example. You can use:

$remote = "sftp://".$username.":".$password ."@".$host."/home/testfolder/saleskits/".$fn;