#!/usr/bin/python
"""snipe bids on eBay

   wait until specified second before auction ends and place bid"""
Copyright = """
    bidsnipe - sneaky way to win eBay auctions
    Copyright (C) 2009  John Comeau <jc.unternet.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    """
import sys, os, re, pwd, time
import urllib, urllib2, cookielib
from BeautifulSoup import BeautifulSoup
cookiejar = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar))

def findLoginForm(soup):
 pattern = re.compile('(?i)login')
 forms = soup.findAll('form')
 loginforms = filter(lambda node: pattern.search(node.get('action')), forms)
 if len(loginforms) != 1:
  raise Exception, 'Document does not contain one and only one login form'
 return loginforms[0]

def getInputs(soup):
 inputs = soup.findAll('input')
 return dict([[input.get('name').encode('utf8'),
  input.get('value').encode('utf8')] for input in inputs])

def bidsnipe(item=11111111, maxbid=1, seconds=10):
 """bid on item number with max price at so many seconds before end

    takes those 3 arguments, gets login info from $HOME/.netrc file
 """
 print >>sys.stderr, 'sleeping %s seconds' % seconds
 time.sleep(float(seconds))
 ebay = 'm.ebay.com'  # mobile eBay site has less garbage to sift through
 page = login(ebay)
 socket = opener.open('https://%s/Pages/ViewItem.aspx?aid=%s' % (ebay, item))
 soup = BeautifulSoup(socket.read())
 socket.close()
 socket = opener.open('https://%s/Member/Bid.aspx?btnOffer=btnOffer' % ebay)
 soup = BeautifulSoup(socket.read())
 socket.close()
 bidform = soup.findAll('form')[-1]
 inputs = getInputs(bidform)
 inputs.pop('btnCancel')
 inputs['bid'] = maxbid
 action = bidform.get('action')
 enctype = bidform.get('enctype')
 loginurl = 'https://%s' % ebay + action
 opener.addheaders = [('content-type', enctype)]
 socket = opener.open(loginurl, urllib.urlencode(inputs))
 soup = BeautifulSoup(socket.read())
 socket.close()
 confirmform = soup.findAll('form')[-1]
 print >>sys.stderr, confirmform
 inputs = getInputs(confirmform)
 print >>sys.stderr, inputs
 inputs.pop('btnCancel')
 inputs.pop('btnBack')
 action = confirmform.get('action')
 enctype = confirmform.get('enctype')
 loginurl = 'https://%s' % ebay + action
 opener.addheaders = [('content-type', enctype)]
 socket = opener.open(loginurl, urllib.urlencode(inputs))
 page = BeautifulSoup(socket.read())
 socket.close()
 return page
def login(ebay):
 pattern = '^machine\s+%s\s+login\s+(\S+)\s+password\s+(.*\S)\s*$' % ebay
 login_data = filter(re.compile(pattern).match, open(os.path.join(
  pwd.getpwuid(os.geteuid())[5], '.netrc')).readlines())
 username, password = re.compile(pattern).match(login_data[-1]).groups()
 socket = opener.open('https://%s/' % ebay)
 soup = BeautifulSoup(socket.read())
 socket.close()
 loginform = findLoginForm(soup)
 enctype = loginform.get('enctype')
 action = loginform.get('action')
 loginurl = 'https://%s' % ebay + action
 opener.addheaders = [('content-type', enctype)]
 socket = opener.open(loginurl, urllib.urlencode(getInputs(loginform)))
 soup = BeautifulSoup(socket.read())
 socket.close()
 loginform = findLoginForm(soup)
 inputs = getInputs(loginform)
 inputs['uid'] = username
 inputs['upw'] = password
 inputs.pop('btnCancel')
 enctype = loginform.get('enctype')
 action = loginform.get('action')
 loginurl = 'https://%s' % ebay + action
 opener.addheaders = [('content-type', enctype)]
 socket = opener.open(loginurl, urllib.urlencode(inputs))
 page = socket.read()
 socket.close()
 if username in page:
  sys.stderr.write('login successful\n')
 return page
if __name__ == '__main__':
 item, maxbid, seconds = (sys.argv[1:] + ['', '', ''])[0:3]
 print bidsnipe(item, maxbid, seconds)
else:
 # if you want something to be done on import, do it here; otherwise pass
 pass