goo.py

#!/usr/bin/env python
#
# Jakub Jedelsky <jakub.jedelsky@gmail.com>
#
# Simple UTL shortener using google API (outcome
# address is goo.gl).
#
# GNU GPLv2+
#
import urllib2
import sys
try:
    import json
except ImportError:
    import simplejson as json

def sendLongUrl(l_url):
    """Send long url to google API and return its response."""

    host = "https://www.googleapis.com/urlshortener/v1/url"
    data = {"longUrl" : l_url}
    header = {
        "Content-type" : "Application/json",
        "User-Agent" : "i am a goopy"
    }
    data_json = json.dumps(data)

    req = urllib2.Request(host, data_json, header)
    response = urllib2.urlopen(req).read()

    return response

def readLongUrl(json_data):
    """Parse data returned by google API."""

    out = json.loads(json_data)
    return out['id']

def main():
    if len(sys.argv) <= 1:
        try:
            import gtk

            clipboard = gtk.clipboard_get()
            c_text = clipboard.wait_for_text()
            
            if not c_text:
                print "There isn't a txt in clipboard; exiting..."
                sys.exit(1)

            # we can use only "one-line text"
            s_text = c_text.split('\n')
            if len(s_text) > 1:
                print "Your text has more than one line; exiting..."
                sys.exit(1)

            url = c_text

        except ImportError:
            print "Sorry, can't include gtk; exiting..."
            sys.exit(1)

    else:
        if sys.argv[1] == '-h':
            print """Usage: goo.py [option] URL

Options:
    -h   prints this help

URL is a long url which you want to shorted."""
            sys.exit(0)
        else:
            url = sys.argv[1]

    api_result = sendLongUrl(url)
    print readLongUrl(api_result)

if __name__ == '__main__':
    main()