mc_version_api.py

#!/usr/bin/env python3

from urllib.request import urlopen
import xml.etree.ElementTree as etree
import re
import json


def get_snapshot():
    NS = '{http://s3.amazonaws.com/doc/2006-03-01/}'
    with urlopen('http://assets.minecraft.net/') as w:
        feed = etree.parse(w)
    root = feed.getroot()
    snapshots = []
    for x in root.getiterator('{}Contents'.format(NS)):
        key = x.find('{}Key'.format(NS)).text
        lastmodified = x.find('{}LastModified'.format(NS)).text
        snapshots.append((key, lastmodified))
    snapshots.sort(key=lambda x: x[1], reverse=True)
    for x, _ in snapshots:
        x = x.split('/')[0]
        if re.search(r'''[0-9]{1,2}w[0-9]{2}[a-z]{1}?|[0-9]{1,2}_[0-9]{1}(?:-pre[0-9]{0,2})?''', x):
            return(x.replace('_', '.'))


def get_stable():
    with urlopen('http://mcupdate.tumblr.com/rss') as w:
        feed = etree.parse(w)
    titles = [i.text for i in feed.findall('.//title')]
    for i in titles:
        stable = re.findall(r'''Minecraft ((?:[0-9]\.?){2,3})''', i, re.I)
        if stable:
            return stable[0]


def main():
    output = {'Stable': get_stable(), 'Snapshot': get_snapshot()}
    print(json.dumps(output))

if __name__ == '__main__':
    main()