TweetContext

#!/usr/local/bin/python2.5 
from BeautifulSoup import BeautifulSoup
import urllib
import cgitb
import cgi

cgitb.enable()

MAX_PAGES = 50


def find_pagination_for_id(user, target_id):
    if not target_id:
        return None
    counter = 1
    while(counter <= MAX_PAGES):
        timeline = urllib.urlopen("http://twitter.com/statuses/user_timeline/%s.xml?page=%s" % (user, counter))
        soup = BeautifulSoup( timeline.read() )
        for tweet_id in soup('id'):
            if tweet_id.contents[0] == target_id:
                return "http://twitter.com/%s/?page=%s" % (user, counter)
        counter += 1

    return None    

# returns a (user, tweet_id) tuple
def get_user_and_id_from_url(url):
    if not url:
        return None
    else:
        url_split =  url.split('/')
        user = url_split[3]
        target_id = url_split[5]
        return (user, target_id)


parameters = cgi.FieldStorage()
if "url" in parameters:
    url = parameters['url'].value
    user, target_id = get_user_and_id_from_url(url)
    redirect_url = find_pagination_for_id(user, target_id)
    print 'Content-type: script/javascript\n\n'
    print

    if redirect_url:
        print "window.location.href = '%s';" % (redirect_url)
    else:
        print "alert('Sorry, this tweet was beyond the page limit');"