#! /usr/bin/env python
###############################################################################
# (c) Roger Whittaker 2015
# roger@disruptive.org.uk
# Free software licenced under the GPL
###############################################################################

import cgi
from subprocess import Popen, PIPE

from config import base

f = cgi.FieldStorage()
k = f.keys()

it = f['iterations'].value.strip()
sc = f['scale'].value.strip()
p  = f['params'].value
pars = ''
for bit in p.split():
    pars = pars + ' ' + bit

pp = pars.strip().replace(' ', '_')

fn = "pen" + '_' + it + '_' + sc + '-' + pp

print 'Content-Type: application/pdf'
print 'Content-Disposition: attachment; filename=' + fn + '.pdf'
print 

c1 = base + "/gppg -t ps " + it + ' ' + sc + ' ' + pars
c2 = "/usr/bin/ps2pdfwr - - "

p1 = Popen(c1.split(), stdout=PIPE)
p2 =  Popen(c2.split(), stdin=p1.stdout, stdout=PIPE)
p1.stdout.close()
pdf = p2.communicate()[0]

print pdf