webadmin-devel

[webmin-devel] Temporary files

[Sandro D. <sa...@e-...>]

I need to use temporary files. Where should I put them?
I'm writing an interface to manage dar archives from backup. People look in
a database find the precious file and click on it. File must be extracted
from the archive and served. Where should I extract it. 

Of course it would work, creating a temp dir *inside*
/usr/share/webmin/my_module.... but that would be against any Filesystem
Hyerarchy Standard.

Otherwise I should create a wrapper cgi that picks file that I extract under
/tmp/ os /var/tmp, is there any other, possibly smarter solution?


TYA
sandro
*:-)



-- 
Sandro Dentella  *:-)
e-mail: sa...@e-... 
http://www.tksql.org                    TkSQL Home page - My GPL work

Re: [webmin-devel] Temporary files

[Jamie C. <jca...@we...>]

The best solution is to use Webmin's tempname function, which will
return a filename under /tmp/.webmin suitable for use as a temporary
directory. Your code would look something like :

$tempdir = &tempname();
mkdir($tempdir, 0700);
$tempfile = "$tempdir/whatever";
...
system("rm -rf ".quotemeta($tempdir));

The only important thing to remember is to remove the temporary
directory before your script exits, as the rm -rf command above does.
Otherwise, you run the risk of filling up the filesystem with data that
is no longer needed ..

 - Jamie

On Wed, 2004-07-21 at 08:14, Sandro Dentella wrote:
> I need to use temporary files. Where should I put them?
> I'm writing an interface to manage dar archives from backup. People look in
> a database find the precious file and click on it. File must be extracted
> from the archive and served. Where should I extract it. 
> 
> Of course it would work, creating a temp dir *inside*
> /usr/share/webmin/my_module.... but that would be against any Filesystem
> Hyerarchy Standard.
> 
> Otherwise I should create a wrapper cgi that picks file that I extract under
> /tmp/ os /var/tmp, is there any other, possibly smarter solution?
> 
> 
> TYA
> sandro
> *:-)
> 
> 

Re: [webmin-devel] Temporary files

[Sandro D. <sa...@e-...>]

On Wed, Jul 21, 2004 at 06:29:52PM +1000, Jamie Cameron wrote:
> The best solution is to use Webmin's tempname function, which will
> return a filename under /tmp/.webmin suitable for use as a temporary
> directory. Your code would look something like :

This would solve the problem of having temp space available, not to return
the space as a link, the temporary space would be out of the
"DocumentRoot" of webmin.

I guess the only way is to implement a function that gets from the temp
space and returns it, but in this way I should hanldle the header, I should
know which type of file it is...

This solution in fact would give me te info when the user finished
downloading (the script terminates) and I can delete the file...


thanks
sandro
*:-)


-- 
Sandro Dentella  *:-)
e-mail: sa...@e-... 
http://www.tksql.org                    TkSQL Home page - My GPL work

Re: [webmin-devel] Temporary files

[Jamie C. <jca...@we...>]

On Fri, 2004-07-23 at 18:14, Sandro Dentella wrote:
> On Wed, Jul 21, 2004 at 06:29:52PM +1000, Jamie Cameron wrote:
> > The best solution is to use Webmin's tempname function, which will
> > return a filename under /tmp/.webmin suitable for use as a temporary
> > directory. Your code would look something like :
> 
> This would solve the problem of having temp space available, not to return
> the space as a link, the temporary space would be out of the
> "DocumentRoot" of webmin.
> 
> I guess the only way is to implement a function that gets from the temp
> space and returns it, but in this way I should hanldle the header, I should
> know which type of file it is...
> 
> This solution in fact would give me te info when the user finished
> downloading (the script terminates) and I can delete the file...

Yes, that sounds like a good solution. You could have a simple script
that just opens and outputs the temp file, sort of like the
file/show.cgi script.

 - Jamie