#! /usr/local/bin/python

import cgi
import os
import string
import re

# get input
query = cgi.parse()

# controls
def control_ok(input):
    if re.match('^[\w\-\+,\.]+$', input):
        if re.search('\.\.', input):
            return False
        else:
            return True
    else:
        return False

# code for computation of dynamic content
def get_seq (id, db='sp'):
    cmd="golden " + db + ":" + id
    handle = os.popen(cmd, 'r')
    entry = handle.readlines()
    status = handle.close()
    if status is not None:
        return None
    return string.join(entry, '')

os.environ['PATH'] = '/usr/local/bin' + ':' + os.environ['PATH']

# document returned
print "Content-type: text/plain"
print

seq_id = query['seq_id'][0]
if control_ok(seq_id):
    print get_seq(seq_id)
else:
    print "Your input is not valid. Please provide a correct entry_name"
print