#!/usr/bin/python
# cgi_a_file.py
# --copyright-- Copyright 2014 (C) Tranzoa, Co. All rights reserved. Warranty: You're free and on your own here. This code is not necessarily up-to-date or of public quality.
# --url-- http://www.tranzoa.net/tzpython/
# --email-- pycode is the name to send to. tranzoa.com is the place to send to.
# --bodstamps--
# August 31, 2016 bar
# --eodstamps--
## \file
# \namespace tzpython.cgi_a_file
import cgi
import mimetypes
import os
import re
import socket
import sys
import time
def find_dir(dns) :
for dn in dns :
dn = os.path.expanduser(os.path.expandvars(dn))
if os.path.isdir(dn) :
return(dn)
pass
return(os.path.expanduser(os.path.expandvars(dns[0])))
sys.path.append(find_dir([ '~/flight/tzpython', '~/tzpython', ]))
import tzlib
host = socket.gethostname()
# !!!! figure this out from the Host: and Post:/Get: headers
MY_URL = 'https://www.tranzoa.net/~alex/cgi-bin/cgi_a_file.py'
MY_URL = '"' + MY_URL + '"'
#
# revectoring stderr Python traceback errors put to the browser
#
#
# import cgitb; cgitb.enable()
# or
# import cgitb; cgitb.enable(display=0, logdir="/tmp")
# or
import sys
sys.stderr = sys.stdout
#
#
def process_file_data(fn, fd) :
fn, ext = os.path.splitext(fn)
fn = fn + ".csv"
lns = re.split('\r?\n', fd)
lns = [ re.sub(r',?\s+', ',', li) for li in lns ]
fd = "\n".join(lns) + "\n"
return(fn, fd)
form = cgi.FieldStorage(keep_blank_values = 1)
if False :
fi = os.popen("whoami", "r")
uname = fi.read()
if fi.close() != None :
uname = "Cannot run whoami"
fo = open('ck.txt', 'a')
fo.write("\n");
fo.write("Tm: " + time.asctime(time.localtime(time.time())) + "\n")
fo.write("IP: " + os.getenv("REMOTE_ADDR", "") + "\n")
fo.write("Ck: " + os.getenv("HTTP_COOKIE", "") + "\n")
fo.write("Wh: " + uname + "\n")
fo.close()
del(fo)
#
# Stop the madness!
#
# res.addHeader("Cache-Control", "post-check=0, pre-check=0"); is mentioned on the web, too.
#
#
no_cache = 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate\r\n'
no_cache += 'Expires: Tue, 27 Jul 1997 00:00:00 GMT\r\n'
no_cache += 'Pragma: no-cache\r\n'
err_str = ""
ofd = None # the output file data
ofn = None # the output file name
omt = None # the output file mime type
oen = None # the output file mime encoding
if form.has_key('upload_file') :
fd = form['upload_file'].value
if fd :
ofn = form['upload_file'].filename
ofn = tzlib.file_name_able(ofn)
ofn, ext = os.path.splitext(ofn)
ofn = os.path.basename(ofn)
ofn += ext.lower()
ofn, ofd = process_file_data(ofn, fd)
omt, oen = mimetypes.guess_type(ofn, strict = False)
if not ofd :
err_str = "No file data to process!"
pass
if ofd and ofn :
# tzlib.safe_write_whole_text_file('/home/alex/tmp/x.y', "all done")
output = ''
if omt :
output += 'Content-Type: %s; charset=utf8\r\n' % omt
if oen :
output += 'Content-Encoding: %s\r\n' % oen
output += 'Content-Disposition: attachment; filename="%s"\r\n' % ofn
output += no_cache
output += '\r\n'
output += tzlib.convert_to_unicode(ofd).encode('utf8')
else :
output = "Content-Type: text/html\r\n"
output += no_cache
output += "\r\n"
output += """
File Uploader
Upload a file and I will download a processed version of it.
"""
output += err_str or ""
output += """
""" + os.path.basename(__file__) + """ :
Last modified August 31, 2016
"""
print output
#
#
# eof