PHP Language - fput writes 0kb file

Author

fput writes 0kb file

Jonah

2004-05-25, 4:33 pm

Hi

I'm having a lot of trouble with this and I hope someone
can help. I'm writing a script that is installed on many different
servers, so compatibility is obviously an issue.

This code works fine on my server, which runs
PHP Version 4.3.3
System Linux 2.4.20-20.7 #1 Mon Aug 18 14:56:30 EDT 2003 i686

But it doesn't work on this server, (and many others) which runs
PHP Version 4.3.3
System Linux 2.4.25-1-grsec #1 SMP Tue Feb 24 12:05:40 CST 2004 i686

PROBLEM:
The code runs completely fine, no errors, except I get a 0kb file.

Here is the code:
$fp = ftp_connect("$ftphost"); //$ftphost = www.somedomain.com
if ($fp)
{
$login = ftp_login ($fp, $user, $pass);
if ($directory)
ftp_mkdir($fp, "$basedir$directory");
@ftp_delete ($fp, $ftpfile); //deletes the file if there, if not, silence
warning
ftp_quit($fp);
}
else die('Cannot connect to FTP');

$fp = fopen("ftp://$user:$pass@$ftphost$ftpfile", 'w'); //user and pass
are the correct values
if ($fp)
{
//all these variables are as they should be, they get printed
echo "<b>debugging</b> <br>";
echo "<textarea>$contents</textarea> <br>"; //is NOT empty
echo "ftpfile: $ftpfile <br>"; // ftpfile= /www/test6.html

fputs($fp, $contents) or die ("can't fput");
fclose($fp);
}
else die('Cannot create file via FTP');

Like I said, the file gets created, but with 0kb. I tried fwrite, I tried
fputs($fp, $contents, strlen($contents));

I have no idea why this works for only 50% of the servers I try it on.
Is is a permissions issue, does it depend on what version of linux they're
running?
etc.
I searched the net, I googled all the php groups, and found nothing that
helped.
If you have any idea at all, it would be greatly appreciated.
Thanks

Dank

2004-05-25, 9:33 pm

On Tue, 25 May 2004 14:51:26 -0400, Jonah <nomail@nomail.com> wrote:

> Hi
>
> I'm having a lot of trouble with this and I hope someone
> can help. I'm writing a script that is installed on many different
> servers, so compatibility is obviously an issue.
>
> This code works fine on my server, which runs
> PHP Version 4.3.3
> System Linux 2.4.20-20.7 #1 Mon Aug 18 14:56:30 EDT 2003 i686
>
> But it doesn't work on this server, (and many others) which runs
> PHP Version 4.3.3
> System Linux 2.4.25-1-grsec #1 SMP Tue Feb 24 12:05:40 CST 2004 i686
>
> PROBLEM:
> The code runs completely fine, no errors, except I get a 0kb file.
>
% SNIP %
>
> I have no idea why this works for only 50% of the servers I try it on.
> Is is a permissions issue, does it depend on what version of linux
> they're
> running?
> etc.
> I searched the net, I googled all the php groups, and found nothing that
> helped.
> If you have any idea at all, it would be greatly appreciated.
> Thanks
>
>
>
>

Hey,

I ran into the same problems when dealing with something similar, but my
problems were even more intermittent, it would sometimes upload the file
fine, and sometimes just a 0kb version (to the same server!) I couldn't
narrow it down, so out of desperation I went back to using the very basic
ftp commands rather then the new easier ftp supporting versions
(fopen/fputs etc) which meant I had to write a temporary file to the
localserver before using ftp_connect/ftp_login/ftp_put, once I started
using them, I had no problems at all. Maybe worth a shot for you, I've
included the code for the main upload function beneath, but it's generally
just standard stuff. Just stick to the ftp_* commands :]

Hope that helps, I just assumed it was a buggy implementation of the new
stream handlers, but didn't have time to track it down to something
precise and report it.

Dank.

# FUNCTION 1 : FTP 'UPLOAD' SCRIPT
# INPUTS:
# Connection Data Array (username,password,ftpaddress,port,subdi
r)
# File For Upload Array (dirpath, filename)
#
# Example Usage:
# include 'dbconnect.php';
# $localfile = array('testfile.txt','/home/user/public_html/subdir/');
# $moo = upload($localfile, 1);
# echo ($moo ? "YAY" : "NAY");

FUNCTION upload($fileinfo, $id)
{
$connection = upload_array($id);
#upload_array($id) fills in the connection data array for relevant id(see
INPUTS)
$connect = ftp_connect($connection[2]);
$login = ftp_login($connect, $connection[0], $connection[1]);

## Check connection ##

if ((!$connect) || (!$login))
{
$error = 1;
return 1;
exit;
}
else
{
$error = 0;
}

## UPLOAD FILE ##
ftp_chdir($connect, $connection[4]);
$upload = ftp_put($connect, $fileinfo[0], $fileinfo[1].$fileinfo[0],
FTP_BINARY);

## CHECK ##
if (!$upload)
{
$error = 1;
}
else
{
$error = 0;
}
ftp_close($connect);
return($error);
}

--
If we can't play God, who will?

Jonah

2004-05-27, 1:31 pm

>
> Hey,
>
> I ran into the same problems when dealing with something similar, but my
> problems were even more intermittent, it would sometimes upload the file
> fine, and sometimes just a 0kb version (to the same server!) I couldn't
> narrow it down, so out of desperation I went back to using the very basic
> ftp commands rather then the new easier ftp supporting versions
> (fopen/fputs etc) which meant I had to write a temporary file to the
> localserver before using ftp_connect/ftp_login/ftp_put, once I started
> using them, I had no problems at all.

Hey, thanks for the help, you're a life saver.

I did as you suggested, however, I can't seem to get ftp_put to work.
I'm actually

as to how it works.

Here's my code

//CREATE TEMPORARY FILE IN SAME DIRECTORY AS SCRIPT
$tempfile = $filename.".html";
$destination_path = "/home/user/public_html/";
$tfp = fopen($tempfile, "w") or die ("Can't create $tempfile on
".__LINE__);
fwrite($tfp, $contents) or die ("Can't write to $tempfile on ".__LINE__);
fclose($tfp) or die ("Can't close $tempfile on ".__LINE__);
//----------file is created succesfully

//UPLOAD FILE ON SAME SERVER TO ANOTHER DIRECTORY
$ftp_server = "domain.com"; //does this always work without putting
ftp.domain.com? I wonder
$conn_id = ftp_connect($ftp_server) or die("Couldn't connect to
$ftp_server on ".__LINE__);
ftp_login($conn_id, $user, $pass) or die ("Couldn't login to $ftp_server
using $user, $pass on ".__LINE__);
ftp_chdir($conn_id, $basedir) or die ("Couldn't change directory to
$basedir on ".__LINE__);
ftp_put($conn_id, $tempfile, "/home/user/public_html/".$tempfile,
FTP_ASCII) or die ("Couldn't ftp_put $tempfile on ".__LINE__);
ftp_close($conn_id) or die ("Couldn't ftp_close on ".__LINE__);

I get an error at ftp_put -> "Couldn't ftp_put $tempfile .. "

Maybe there is another way of solving this problem?
Ultimately, what I want to do is create an html file anywhere on the users's
server.
I can't use fopen because of permission issues.
Well, I can, if the user chmods his public_html directory to 777, but I'm
not sure if that's safe,
and even then, i don't think it will always work.
So I'm using your solution above.

Is there another way to do this? Anyone? I've been working for days on this
with no
solution.

Shane Lahey

2004-05-30, 12:31 am

On Tue, 25 May 2004 14:51:26 -0400, "Jonah" <nomail@nomail.com> wrote:

looks fine, make sure socket is really open with is_resource() & don't
enclose $ftphost in ""

edited source below

<?php

$fp = ftp_connect($ftphost);
if (is_resource($fp))
{
$login = ftp_login ($fp, $user, $pass);

if ($directory)
ftp_mkdir($fp, "$basedir$directory");

@ftp_delete ($fp, $ftpfile); //deletes the file if there, if
not, silence warning
ftp_quit($fp);
}
else
die('Cannot connect to FTP');

$fp = fopen("ftp://$user:$pass@$ftphost$ftpfile", 'w'); //user and
pass are the correct values
if (is_resource($fp))
{
//all these variables are as they should be, they get printed
echo "<b>debugging</b> <br>";
echo "<textarea>$contents</textarea> <br>"; //is NOT empty
echo "ftpfile: $ftpfile <br>"; // ftpfile= /www/test6.html

fputs($fp, $contents) or die ("can't fput");
fclose($fp);
}
else
die('Cannot create file via FTP');

?>

>Hi
>
>I'm having a lot of trouble with this and I hope someone
>can help. I'm writing a script that is installed on many different
>servers, so compatibility is obviously an issue.
>
>This code works fine on my server, which runs
>PHP Version 4.3.3
>System Linux 2.4.20-20.7 #1 Mon Aug 18 14:56:30 EDT 2003 i686
>
>But it doesn't work on this server, (and many others) which runs
>PHP Version 4.3.3
>System Linux 2.4.25-1-grsec #1 SMP Tue Feb 24 12:05:40 CST 2004 i686
>
>PROBLEM:
>The code runs completely fine, no errors, except I get a 0kb file.
>
>Here is the code:
> $fp = ftp_connect("$ftphost"); //$ftphost = www.somedomain.com
> if ($fp)
> {
> $login = ftp_login ($fp, $user, $pass);
> if ($directory)
> ftp_mkdir($fp, "$basedir$directory");
> @ftp_delete ($fp, $ftpfile); //deletes the file if there, if not, silence
>warning
> ftp_quit($fp);
> }
> else die('Cannot connect to FTP');
>
> $fp = fopen("ftp://$user:$pass@$ftphost$ftpfile", 'w'); //user and pass
>are the correct values
> if ($fp)
> {
>//all these variables are as they should be, they get printed
> echo "<b>debugging</b> <br>";
> echo "<textarea>$contents</textarea> <br>"; //is NOT empty
> echo "ftpfile: $ftpfile <br>"; // ftpfile= /www/test6.html
>
> fputs($fp, $contents) or die ("can't fput");
> fclose($fp);
> }
> else die('Cannot create file via FTP');
>
>Like I said, the file gets created, but with 0kb. I tried fwrite, I tried
> fputs($fp, $contents, strlen($contents));
>
>I have no idea why this works for only 50% of the servers I try it on.
>Is is a permissions issue, does it depend on what version of linux they're
>running?
>etc.
>I searched the net, I googled all the php groups, and found nothing that
>helped.
>If you have any idea at all, it would be greatly appreciated.
>Thanks
>
>
>

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