transfer files from ssh server directly to client

Question

i have a ssh server which is use to store my files online. i need to make those file available for download easily so i am using paramiko library to connect to the ssh server (from my python script), it then lists files and displays on the webpage. the problem is that i dont want to download the files to the web server's disk (dont have enough space) then send them to the clients , instead do something like read the file and spit it like it can be done in php.

something like this in python

<?php
// your file to upload
$file = '2007_SalaryReport.pdf';
header("Expires: 0");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-type: application/pdf");
// tell file size
header('Content-length: '.filesize($file));
// set file name
header('Content-disposition: attachment; filename='.basename($file));
readfile($file);
// Exit script. So that no useless data is output-ed.
exit;
?>

the answer depends on the web framework you use. Python has several different web framkeworks with differen APIs. — rocksportrocker
– rocksportrocker, Commented Sep 21, 2011 at 11:15
i am currently trying plain cgi script but am open to webapp2 ,web.py and django.. — voldyman
– voldyman, Commented Sep 21, 2011 at 11:33

Maxim Razin · Accepted Answer · 2011-09-21 13:41:26Z

1

Not a programmer's answer: instead of paramiko, mount the directory with documents with sshfs and serve the documents as if they were on the local file system

http://fuse.sourceforge.net/sshfs.html

answered Sep 21, 2011 at 13:41

Maxim Razin

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1 Comment

voldyman Over a year ago

i am not root on the web server so cant install software ( free account )

rocksportrocker · Accepted Answer · 2011-09-21 13:32:12Z

0

A cgi script generates output on stdout which is delivered to the webserver. The output starts with header lines, one blank line (as a separator) and then the content.

So you have to change the header() calls to print statements. And readfile($file) should be replaced by

 print
 print open("2007_SalaryReport.pdf","rb").read()

See http://en.wikipedia.org/wiki/Common_Gateway_Interface

edited Sep 21, 2011 at 13:32

answered Sep 21, 2011 at 11:48

rocksportrocker

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