system: You are an expert security code reviewer. You will be shown a source code file along with a multi-select question listing several CWE (Common Weakness Enumeration) categories. Your task is to identify which of the listed CWEs are present in the code.

OUTPUT FORMAT: Respond with the letter(s) of all correct options, sorted alphabetically and comma-separated, wrapped in a single \boxed{...}. Examples: `\boxed{A}` for one correct, `\boxed{A,C}` for two, `\boxed{A,C,E}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
#!/usr/bin/python
# -*- coding: utf-8 -*-

import sys
import getopt
import hashlib
import requests
import os
import time
import threading
import re

from xml.etree import ElementTree as et
from collections import OrderedDict
from getpass import getpass

class Item(threading.Thread):

	def __init__(self):
		threading.Thread.__init__(self)
		self.id = 0
		self.AgreementInfo = 'own'
		self.realId = 0
		self.name = ''
		self.url = ''
		self.num = 1
		self.status = 'open'
		self.directory = ""
		self.progress = None
		
	def getProgress(self):
		if self.progress is None:
			return "{:>2s}. {: <20s} : {}".format(str(self.num), self.name[:20], "Oczekuje...",)
		else:
			return self.progress
			
	def run(self):
		self.status = 'inprogress'
		path = self.directory+'/'+self.name
		try:
			file_size = os.path.getsize(path)
		except:
			file_size = 0

		r = requests.get(self.url, stream=True, verify=False, allow_redirects=True)
		total_length = int(r.headers.get('content-length'))
		file_attr = 'wb'

		if total_length > file_size and file_size > 0:
			file_attr = 'ab'
			resume_header = {'Range': 'bytes=%d-' % file_size}
			r = requests.get(self.url, headers=resume_header,  stream=True, verify=False, allow_redirects=True)

		if file_size < total_length:
			
			with open(path, file_attr) as fd:
				dl_size = file_size
				for chunk in r.iter_content(chunk_size=128):
					dl_size += len(chunk)
					progress = dl_size * 100. / total_length
					self.progress = "{:>2s}. {: <20s} {: >10d}KB {: >3d}% [{: <25s}]".format(str(self.num), self.name[:20], int(dl_size/(1024)),int(progress),"#"*int(progress/4))
					fd.write(chunk)
			self.status = 'done'
		elif file_size == total_length:
			self.progress = "{:>2s}. {: <20s} : {}".format(str(self.num), self.name[:20], "Plik istnieje na dysku")
			self.status = 'done'
			
class Chomyk:

	def __init__(self, username, password,maxThreads,directory):
		self.isLogged = True
		self.lastLoginTime = 0
		self.hamsterId = 0
		self.token = ''
		self.items = 0
		self.threads = []
		self.accBalance = None
		self.maxThreads = int(maxThreads)
		self.directory = directory
		self.threadsChecker = None
		self.totalItems = 0
		self.username = username
		self.password = hashlib.md5(password.encode("utf-8")).hexdigest()
		self.cls()
		self.checkThreads()
		self.login()
		
	def cls(self):
		os.system('cls' if os.name=='nt' else 'clear')

	def printline(self, line, text):
		sys.stdout.write("\x1b7\x1b[%d;%df%s\x1b8" % (line, 2, text))
		sys.stdout.flush()
		
	def checkThreads(self):
		threadsInprogress = 0
		threadsOpen = 0
		threadsDone = 0

		for it in self.threads:
			self.printline(it.num+3, it.getProgress())
			if it.status == 'inprogress':
				threadsInprogress += 1
			if it.status == 'open':
				threadsOpen += 1
				if threadsInprogress < self.maxThreads:
					threadsInprogress += 1
					threadsOpen -= 1
					it.start()
					#it.join()
			if it.status == 'done':
				threadsDone += 1

		if threadsDone == self.totalItems and threadsDone > 0 and threadsOpen == 0:
			self.threadsChecker.cancel()
			self.cls()
			print("\r\nWszystkie pliki zostaly pobrane")
			print("\r")
		else:
			self.threadsChecker = threading.Timer(1.0, self.checkThreads)
			self.threadsChecker.start()
			
	def postData(self, postVars):
		url = "http://box.chomikuj.pl/services/ChomikBoxService.svc"
		body = postVars.get("body")
		headers = {
			"SOAPAction": postVars.get("SOAPAction"),
			"Content-Encoding": "identity",
			"Content-Type": "text/xml;charset=utf-8",
			"Content-Length": str(len(body)),
			"Connection": "Keep-Alive",
			"Accept-Encoding": "identity",
			"Accept-Language": "pl-PL,en,*",
			"User-Agent": "Mozilla/5.0",
			"Host": "box.chomikuj.pl",
			}

		response = requests.post(url, data=body, headers=headers)
		self.parseResponse(response.content)

	def dl(self, url):
		fileUrl = re.search('[http|https]://chomikuj.pl(.*)', url).group(1)
		
		rootParams = {
			"xmlns:s": "http://schemas.xmlsoap.org/soap/envelope/",
			"s:encodingStyle": "http://schemas.xmlsoap.org/soap/encoding/"
			}

		root = et.Element('s:Envelope', rootParams)

		body = et.SubElement(root, "s:Body")
		downloadParams = {
			"xmlns": "http://chomikuj.pl/"
			}
		download = et.SubElement(body, "Download", downloadParams)
		downloadSubtree = OrderedDict([
			("token", self.token,),
			("sequence", [
				("stamp", "123456789"),
				("part", "0"),
				("count", "1")
				]),
			("disposition", "download"),
			("list",  [
					("DownloadReqEntry", [
						("id", fileUrl),
					])
				])
			])

		self.add_items(download, downloadSubtree)

		xmlDoc = """<?xml version="1.0" encoding="UTF-8"?>"""
		xmlDoc += et.tostring(root, encoding='unicode', method='xml')

		dts = {
			"body": xmlDoc,
			"SOAPAction": "http://chomikuj.pl/IChomikBoxService/Download"
		}
		self.postData(dts)

	def dl_step_2(self, idx, agreementInfo,cost = 0):
		rootParams = {
			"xmlns:s": "http://schemas.xmlsoap.org/soap/envelope/",
			"s:encodingStyle": "http://schemas.xmlsoap.org/soap/encoding/"
			}
		root = et.Element('s:Envelope', rootParams)

		body = et.SubElement(root, "s:Body")
		downloadParams = {
			"xmlns": "http://chomikuj.pl/"
			}
		download = et.SubElement(body, "Download", downloadParams)
		downloadSubtree = OrderedDict([
			("token", self.token,),
			("sequence", [
				("stamp", "123456789"),
				("part", "0"),
				("count", "1")
				]),
			("disposition", "download"),
			("list",  [
					("DownloadReqEntry", [
						("id", idx),
						("agreementInfo", [
							("AgreementInfo", [
								("name", agreementInfo),
								("cost", cost),
							])
						])
					])
			])
			])

		self.add_items(download, downloadSubtree)

		xmlDoc = """<?xml version="1.0" encoding="UTF-8"?>"""
		xmlDoc += et.tostring(root, encoding='unicode', method='xml')

		dts = {
			"body": xmlDoc,
			"SOAPAction": "http://chomikuj.pl/IChomikBoxService/Download"
		}

		self.postData(dts)

	def login(self):

		rootParams = {
			"xmlns:s": "http://schemas.xmlsoap.org/soap/envelope/",
			"s:encodingStyle": "http://schemas.xmlsoap.org/soap/encoding/"
			}
		root = et.Element('s:Envelope', rootParams)

		body = et.SubElement(root, "s:Body")
		authParams = {
			"xmlns": "http://chomikuj.pl/"
			}
		auth = et.SubElement(body, "Auth", authParams)

		authSubtree = OrderedDict([
			("name", self.username,),
			("passHash", self.password,),
			("ver", "4"),
			("client", OrderedDict([
					("name", "chomikbox"),
					("version", "2.0.5"),
				]))
			])

		self.add_items(auth, authSubtree)

		xmlDoc = """<?xml version="1.0" encoding="UTF-8"?>"""
		xmlDoc += et.tostring(root, encoding='unicode', method='xml')

		dts = {
			"body": xmlDoc,
			"SOAPAction": "http://chomikuj.pl/IChomikBoxService/Auth"
		}
		self.postData(dts)

	def add_items(self, root, items):
		if type(items) is OrderedDict:
			for name, text in items.items():
				if type(text) is str:
					elem = et.SubElement(root, name)
					elem.text = text
				if type(text) is list:
					subroot = et.SubElement(root, name)
					self.add_items(subroot, text)
		elif type(items) is list:
			for name, text in items:
				if type(text) is str:
					elem = et.SubElement(root, name)
					elem.text = text
				if type(text) is list:
					subroot = et.SubElement(root, name)
					self.add_items(subroot, text)

	def parseResponse(self, resp):
		self.printline (3, 'Maks watkow: ' + str(self.maxThreads))
		respTree = et.fromstring(resp)
		
		#Autoryzacja
		for dts in respTree.findall(".//{http://chomikuj.pl/}AuthResult/{http://chomikuj.pl}status"):
			status = dts.text
			if status.upper() == "OK":
				self.isLogged = True
				self.lastLoginTime = time.time()
				self.token = respTree.findall(".//{http://chomikuj.pl/}AuthResult/{http://chomikuj.pl}token")[0].text
				self.hamsterId = respTree.findall(".//{http://chomikuj.pl/}AuthResult/{http://chomikuj.pl}hamsterId")[0].text
				self.printline (1,"Login: OK")

			else:
				 self.isLogged = False
				 self.printline (1,"Login: " + status)

		#Pobieranie urli plikow
		accBalance = respTree.find(".//{http://chomikuj.pl/}DownloadResult/{http://chomikuj.pl}accountBalance/{http://chomikuj.pl/}transfer/{http://chomikuj.pl/}extra")
		if accBalance is not None:
			self.accBalance = accBalance.text
			
		for dts in respTree.findall(".//{http://chomikuj.pl/}DownloadResult/{http://chomikuj.pl}status"):
			status = dts.text
			if status.upper() == "OK":
				dlfiles = respTree.findall(".//{http://chomikuj.pl/}files/{http://chomikuj.pl/}FileEntry")
				if (len(dlfiles) > self.totalItems):
					self.totalItems = len(dlfiles)
					self.printline (2,"Plikow: " + str(self.totalItems))
				for dlfile in dlfiles:
					url = dlfile.find('{http://chomikuj.pl/}url')
					idx = dlfile.find('{http://chomikuj.pl/}id').text
					cost = dlfile.find('{http://chomikuj.pl/}cost')
					if url.text == None:
						agreementInfo = dlfile.find("{http://chomikuj.pl/}agreementInfo/{http://chomikuj.pl/}AgreementInfo/{http://chomikuj.pl/}name").text
						costInfo = dlfile.find("{http://chomikuj.pl/}agreementInfo/{http://chomikuj.pl/}AgreementInfo/{http://chomikuj.pl/}cost")
						
						
						if costInfo.text == None:
							cost = 0
						else:
							cost = costInfo.text
						if int(self.accBalance) >= int(cost):
							self.dl_step_2(idx, agreementInfo,cost)
						else:
							self.printline (2,"Blad: brak wystarczajacego limitu transferu")
					else:
						self.items = self.items +1
						it = Item()
						it.id = idx
						it.directory = self.directory
						it.num = self.items
						it.url = url.text
						it.name = dlfile.find('{http://chomikuj.pl/}name').text
						it.daemon = True
						self.threads.append(it)
						
def main(argv):
	url = ''
	output = ''
	username = ''
	password = ''
	threads = 5
	directory = os.getcwd()+"/"
	try:
		opts, args = getopt.getopt(argv,"h:u:p:i:t:d:o",["help","username","password","ifile","ofile"])
	except getopt.GetoptError:
		printUsage()
		sys.exit(2)
	for opt, arg in opts:
		if opt == '-h':
			print("Help:")
			printUsage()
			sys.exit()
		elif opt in ("-i", "--ifile"):
			url = arg
			
		elif opt in ("-o", "--ofile"):
			output = arg
		elif opt in ("-u", "--username"):
			username = arg
		elif opt in ("-p", "--password"):
			password = arg
		elif opt in ("-t", "--threads"):
			threads = arg
		elif opt in ("-d", "--directory"):
			directory = arg
			
	if len(username) == 0:
		username = input("Login: ")
			
	if len(password) == 0:
		password = getpass("Haslo: ")

	if len(url) == 0:
		url = input("URL: ")
			
	if len(password) > 0 and len(username) >0 and len(url)>0:
		try:
			os.makedirs(directory)
		except OSError:
			pass
		ch = Chomyk(username,password,threads,directory)
		ch.dl(str(url))
	else:
		printUsage()

def printUsage():
	print ('chomyk.py --u username --p password --i <url>')
	sys.exit(2)

if __name__ == "__main__":
   main(sys.argv[1:])

```

Which of the following CWE vulnerability categories are present in this code? Multiple options may be correct.

  A) CWE-943: Improper Neutralization of Special Elements in Data Query Logic
  B) CWE-614: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
  C) CWE-502: Deserialization of Untrusted Data
  D) CWE-327: Use of a Broken or Risky Cryptographic Algorithm
  E) CWE-643: Improper Neutralization of Data within XPath Expressions ('XPath Injection')
  F) CWE-295: Improper Certificate Validation
Answer: D,F