backup tpt saves, just give it a powder.pref

savebackup.py

import urllib, urllib2
import re
import sys
import json

def FatalError(message):
	print(message)
	exit(1)

def GetPage(url, cookies = None, headers = None, removeTags = False):
	if cookies:
		req = urllib2.Request(url, urllib.urlencode(headers) if headers else None, {'Cookie':cookies})
	else:
		req = urllib2.Request(url)
	page = urllib2.urlopen(req, timeout=10).read()
	if removeTags:
		return re.sub("<.*?>", "", page)
	return page

def GetSessionInfo():
	try:
		powderpref = open("powder.pref", "r")
		prefs = json.loads(powderpref.read())
		powderpref.close()
		return "UserRemember=Yes; UserID={0}; UserKey={1}".format(prefs["User"]["ID"],prefs["User"]["SessionID"])
	except:
		return None

def GetUsername():
	try:
		powderpref = open("powder.pref", "r")
		prefs = json.loads(powderpref.read())
		powderpref.close()
		return prefs["User"]["Username"]
	except:
		return None

def GetMaxPage(page):
	pagelinks = []
	pagelinks.extend(re.findall("/User/Saves.html\?ID=[0-9]*&amp;PageNum=([0-9]*)", page))
	if pagelinks:
		return int(max(pagelinks))
	else:
		return 0

if __name__ == "__main__":
	username = None
	start = 0
	end = -1
	for arg in sys.argv[1:]:
		(argname, argvalue) = arg.split("=")
		if argname == "--username":
			username = argvalue
		elif argname == "--pages":
			(start,end) = map(int, argvalue.split(","))
		else:
			FatalError("Valid arguments: --username=<name>, --pages=<start>,<end>")
	if not username:
		username = GetUsername()
		if not username:
			FatalError("Could not get username from powder.pref, use the --username argument")
	print(username)
	if start < 0 or end < 0:
		link = "http://powdertoy.co.uk/User/Saves.html?Name=%s" % username
		page = GetPage(link, GetSessionInfo())
		if page:
			end = GetMaxPage(page)
		else:
			FatalError("Could not get number of pages to fetch saves from, use the --pages argument")
	print(start,end)

	matches = []
	for i in range(start, end):
		link = "http://powdertoy.co.uk/User/Saves.html?Name=%s&PageNum=%s" % (username, i)
		page = GetPage(link, GetSessionInfo())
		matches.extend(re.findall("http://static.powdertoy.co.uk/([0-9]*)_small.png", page))
	print(matches)
	for i in matches:
		save = GetPage("http://static.powdertoy.co.uk/%s.cps" % i)
		f = open(i+".cps", "w")
		f.write(save)
		f.close()