help.py

from pwn import *
import urllib
import os
import readline

testfile = urllib.URLopener()
testfile.retrieve("http://yacst.2015.volgactf.ru/captcha", "captcha.wav")
os.system("ffmpeg -y -i captcha.wav -acodec pcm_s16le -ac 1 -ar 16000 file.wav")
var = raw_input("Please enter something: ")

import wave

hasharray = []

for x in range(0, 10):
	print "Loading sample wav %d" % (x)
	hasharray.append(wave.open('samples/fix_' + str(x) + ".wav", 'r'))

w = wave.open('file.wav', 'r')

index = 0
Captcha = []
DoingChar = False

WaveSamplesIndex = 0

TheCode = ""
SkippingRope = None
Fuck = False

for i in range(w.getnframes()):
	if not(SkippingRope == None):
		if not(SkippingRope == i):
		    continue
		else:
	            print("skippin done")
		    SkippingRope = None

	if not(DoingChar):
		Captcha.append(index)
		Captcha[index] = []
		for x in range(0, 10):
			Captcha[index].append(x)
			Captcha[index][x] = True
		DoingChar = True
			
	frame = w.readframes(WaveSamplesIndex)        

	for x in range(0, 10):
		if not(Captcha[index][x]):
			continue

		data = hasharray[x].readframes(WaveSamplesIndex)
		print("Frame len: " + str(len(frame)))
		print("Sample Frame len " + str(len(data)))
		if not(data == frame):
			Captcha[index][x] = False
		#print(Captcha)
	
	SamplesStillMatching = 0
	
	Match = None

        #print(Captcha)

	for x in range(0, 10):
		if (Captcha[index][x] == True):
			SamplesStillMatching = SamplesStillMatching + 1
			Match = x


	if(SamplesStillMatching == 1):
		print("GOT A CHAR: " + str(Match))
		DoingChar = False
		TheCode = TheCode + str(Match)
		print(i)
		
		WaveSamplesIndex = 0
		
		print(hasharray[Match].getnframes())
		print(w.getnframes())
		w.setpos(hasharray[Match].getnframes())
		SkippingRope = hasharray[Match].getnframes()
		#print(Captcha)
                index = index + 1
		#Fuck = True
		continue
	else:
		WaveSamplesIndex = WaveSamplesIndex + 1

	if(Fuck):
		print("At " + str(i))
		print(Captcha)
		var = raw_input("Please enter something: ")

print(Captcha)	
		
   #print i
	#print frame