~marnanel/blog-wrangler/trunk

import re

import urllib

import ConfigParser

def _thumbnails(cp, package):

	r = urllib.urlopen(cp.get(package, 'pictures')).read() # will really be from the referenced url

	ini = {}

	jpg = {}

	for href in re.findall('href="([^"]*)', r):

		if href.endswith('.ini'):

			ini[href[:-4]] = 1

		if href.endswith('.jpg'):

			jpg[href[:-4]] = 1

	return filter(jpg.has_key, sorted(ini.keys()))

def next(cp, package):

	candidate = None

	for thumbnail in _thumbnails(cp, package):

		if not cp.has_option(package+'-pictures', thumbnail):

			candidate = thumbnail

			break

	if candidate:

		url = cp.get(package, 'pictures') + candidate

		result = {}

		metadata = ConfigParser.ConfigParser()

		metadata.readfp(urllib.urlopen(url+'.ini'))

		for (key, value) in metadata.items('picture'):

			result[key] = value

		result['picture'] = url+'.jpg'

		# and mark it so it doesn't get reused

		# (you will have to write the cp out again

		# if you want this to stick)

		section = package+'-pictures'

		if not cp.has_section(section):

			cp.add_section(section)

		cp.set(section, candidate, 1)

		return result

	else:

		print 'WARNING: Out of pictures. Returning crummy defaults.'

		return {

			'picture': 'http://www.gnome.org/~tthurman/pics/error.jpg',

			'width': 15, 'height': 13,

			'title': 'Out of pictures-- operator must resolve',

			'target': 'about:blank',

			}

# eof