Fuckr

#!/usr/bin/env python3
# Fuckr: retrieve URL to full-size Flickr images
# Ported from jwz's galdown script: http://www.jwz.org/hacks/galdown
# by Rena Kunisaki, 2015 May 31
# Copyright © 2015 Rena Kunisaki
# Original code copyright © 2006-2015 Jamie Zawinski <jwz@jwz.org>
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation.  No representations are made about the suitability of this
# software for any purpose.  It is provided "as is" without express or
# implied warranty.
import re
import requests
import sys

def search(str, pat, flags=None, group=1):
    if flags is None:
        flags = re.M | re.S | re.X
    return re.search(pat, str, flags).group(group)


def flickr_crack_secret(img):
    #api_key = 'dc4728449ac9905195f4bd612e1c215a'
    api_key = '4fc05fa65f1adedb76e0cb0655cc6836'
    id = search(img, r'/\d+/(\d+)_[a-f\d]+', flags=re.M | re.S | re.I)
    if id is None: raise ValueError("No image ID in this URL")

    url = 'https://api.flickr.com/services/rest' + \
          '?method=flickr.photos.getInfo' + \
          '&photo_id=' + id + \
          '&api_key=' + api_key

    req = requests.get(url)
    xml = req.text

    #if not '<photo ' in xml:
    #   raise ValueError("No <photo> found in response")

    return "https://farm{farm}.staticflickr.com/{serv}/{id}_{secret}_o.{fmt}".\
        format(
            id     = search(xml, r'\b id="(.*?)"'),
            farm   = search(xml, r'\b farm="(.*?)"'),
            serv   = search(xml, r'\b server="(.*?)"'),
            fmt    = search(xml, r'\b originalformat="(.*?)"'),
            secret = search(xml, r'\b originalsecret="(.*?)"'),
        )


if __name__ == '__main__':
    if len(sys.argv) < 2:
        sys.exit("Usage: %s url [url...]" % sys.argv[0])

    for i in range(1, len(sys.argv)):
        print(flickr_crack_secret(sys.argv[i]))