gistfile1.py

#!/usr/bin/env python
# -*- coding: utf8 -*-
import re
import requests


# Regex used for authentication token.
_token_r = re.compile(r'name="authenticityToken" value="([0-9a-f]+)">')
# Regex used for server list entries.
_list_r = re.compile(
    '<a href="/classic/play/([0-9a-f]+)">([^<]+)</a>\s+</td>\s+<td>(\d+)'
    '</td>\s+<td>(\d+)</td>\s+<td>(\d+\w)</td>'
)
# Regexes used for various server fields.
_play_ip = re.compile(r'name="server" value="([^"]+)"')
_play_port = re.compile(r'name="port" value="(\d+)"')
_play_token = re.compile(r'name="mppass" value="([0-9a-f]+)"')


def login(username, password):
    """
    Login to minecraft.net with the given username/password. If there was an
    error, returns `False`, otherwise returns the session key.
    """
    r = requests.get('http://www.minecraft.net/login')
    token = _token_r.findall(r.text)
    if not token:
        return False

    r = requests.post('https://www.minecraft.net/login', verify=True, data={
        'username': username,
        'password': password,
        'authenticityToken': token[0]
    })

    return r.cookies.get('PLAY_SESSION', False)


def server_list(session_key=None, username=None, password=None):
    """
    Returns a list of Creative servers using the session given by
    `session_key`, otherwise using `username` & `password` to login.
    """
    if session_key is None:
        session_key = login(username, password)
        if not session_key:
            return []

    r = requests.get('http://www.minecraft.net/classic/list', cookies={
        'PLAY_SESSION': session_key
    })

    fields = ('hash', 'name', 'players', 'max', 'uptime')
    return (dict(zip(fields, x)) for x in _list_r.findall(r.text))


def server_details(server_hash, session_key=None, username=None, password=None):
    """
    Returns connections details for the server given by `server_hash`. Like
    `server_list()`, uses `session_key` if given, otherwise attempts to login
    with `username` & `password`.
    """
    if session_key is None:
        session_key = login(username, password)
        if not session_key:
            return {}

    r = requests.get('http://www.minecraft.net/classic/play/%s' % server_hash,
        cookies={
            'PLAY_SESSION': session_key
    })

    return {
        'ip': _play_ip.findall(r.text)[0],
        'port': _play_port.findall(r.text)[0],
        'token': _play_token.findall(r.text)[0]
    }


if __name__ == '__main__':
    import getpass

    username = raw_input('Username >')
    password = getpass.getpass('Password >')

    # Login, then do the server list, which is more efficient for repeat calls.
    token = login(username, password)
    for server in server_list(token):
        print server_details(server['hash'], token)

    # ... OR do it using the convience method.
    #print server_list(username=username, password=password)