Python, CGI and PGP

[Phil Edwards]

Jim Dennis wrote:

> 
>  How are you feeding "sometext.txt" into the process in your CGI
>  script?  Why now show us the actual fragment of code that you're
>  attempting to use?
> 
>  When it comes to environmental issues (in programming) it's generally
>  pretty easy to replace a target program with a wrapper script like
>  so:
> 
>  mv $ORIGINAL_BINARY $ORGINAL_BINARY.wrapped
> cat > $ORIGINAL_BINARY <<WRAPPER_SCRIPT
> #!/bin/sh
> printenv > /tmp/$(basename $0).$$
> . /some/where/$(basename $0).env
> exec $0.wrapped "$@"
> WRAPPER_SCRIPT
> chmod +x $ORIGINAL_BINARY
> 
>  ... this shell code is relatively terse (as well as concise) so
>  I'll highlight some of it's finer points in english.
>

Thanks, Jim, this is definitely one for the "little black book". When I see 
things like this, I'm reminded just why I love UNIX so much...
 
> 
>  If you are reasonably persistent and a little clever you should be able

Oh, that leaves me out, then :-)

Managed to figure it all out with the help of the wrapper stuff above. It 
turns out that both 'os.system' and 'commands.getoutput' (which I had 
tried) trash so much of the execution environment that there's hardly 
anything left for the binary to wprk with.

I'm left with the following code in my CGI app:

  cmd = 'export PGPPATH=/var/www/.pgp; /usr/local/bin/pgp -z windsurf -sta 
-f - '
  print 'content-type: text/html\n\n'
        
  pw,pr = os.popen2(cmd)
  pw.write(tdata)
  pw.close()
  junk = pr.read()
        
  print string.replace(junk, '\n', '<br>\n')

Thanks for your help! It's a shame there isn't a scheme for sending 
beer/pizza vouchers over the 'net...

-- 

Regards

Phil Edwards
UNIX Systems Administrator
==========================================================================
Mistral Internet                                  http://www.mistral.co.uk
Tel: +44 (0)1273 747432                           Fax   +44 (0)1273 747452

Running Mandrake Linux release 8.1 (Vitamin) for i586 Kernel 2.4.8-34.1mdk
System uptime : 8 days, 8 min,  2 users,  load average: 1.66, 1.36, 1.24 
==========================================================================