#! /usr/bin/env python

import cgitb; cgitb.enable()
import cgi, sys

DBPATH = '/home/arigo/cache/fdb'

form = cgi.FieldStorage()
checksum = form["sha"].value.decode('hex')

from filesdb import FilesDB
fdb = FilesDB(DBPATH)
entry = fdb.find_sha(checksum)
f = entry.open()
f.seek(0, 2)
length = f.tell()
f.seek(0)

print "Content-type: application/octet-stream"
print "Content-length:", length
print

while length > 0:
    data = f.read(16384)
    if not data:
        break
    sys.stdout.write(data)
    length -= len(data)
f.close()
sys.stdout.close()