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October 30, 2022 19:00
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BlueHensCTF2022 - Wordles with Dads Solve Scripts
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| from pwn import * | |
| import requests | |
| import pickle | |
| from bs4 import BeautifulSoup | |
| url = "https://icanhazdadjoke.com/" | |
| suburl = "search?term=&page=" | |
| jokes = [] | |
| try: | |
| with open('jokes.pickle', 'rb') as handle: | |
| jokes = pickle.load(handle) | |
| except FileNotFoundError: | |
| for i in range(1, 34): | |
| r = requests.get(url + suburl + str(i)) | |
| bs = BeautifulSoup(r.content, "html.parser") | |
| results = bs.find_all('pre') | |
| for result in results: | |
| jokes.append(str(result).replace('<pre style="background-color:inherit; white-space: pre-wrap">', "").replace("</pre>", "").strip()) | |
| with open('jokes.pickle', 'wb') as handle: | |
| pickle.dump(jokes, handle, protocol=pickle.HIGHEST_PROTOCOL) | |
| # print(jokes) | |
| joke_wordles = [] | |
| try: | |
| with open('joke_wordles.pickle', 'rb') as handle: | |
| joke_wordles = pickle.load(handle) | |
| except FileNotFoundError: | |
| for joke in jokes: | |
| tmp = "" | |
| for char in joke: | |
| if char.isalpha(): | |
| tmp += char.upper() | |
| elif char == "ñ": | |
| tmp += "N" | |
| joke_wordles.append(tmp) | |
| with open('joke_wordles.pickle', 'wb') as handle: | |
| pickle.dump(joke_wordles, handle, protocol=pickle.HIGHEST_PROTOCOL) | |
| # print(len(joke_wordles)) | |
| p = remote("0.cloud.chals.io", 33282) | |
| for i in range(10): | |
| p.recvuntil(b"Your joke is ") | |
| ans_len = int(p.recvuntil(b" ").decode("utf-8")) | |
| print(ans_len) | |
| len_filtered = filter(lambda x: len(x)==ans_len, joke_wordles) | |
| possibilities = list(len_filtered) | |
| while(1): | |
| total_possibilities = len(possibilities) | |
| print(f"Possibilities left: {total_possibilities}") | |
| p.recvuntil(b"Guess? >") | |
| maybe = possibilities[0] | |
| p.sendline(maybe.encode()) | |
| p.recvline() | |
| data = p.recvline().decode('utf-8') | |
| corrects = [] | |
| if("one down" in data.lower()): | |
| break | |
| else: | |
| try: | |
| tmp = data[13:].split("],")[0] | |
| corrects = list(map(int, tmp.strip().split(","))) | |
| except: | |
| pass | |
| # print(corrects) | |
| pop_count = 0 | |
| for i in range(total_possibilities): | |
| for j in range(ans_len): | |
| if (j in corrects and maybe[j] != possibilities[i-pop_count][j]) or (j not in corrects and maybe[j] == possibilities[i-pop_count][j]): | |
| possibilities.pop(i-pop_count) | |
| pop_count+=1 | |
| break | |
| p.interactive() |
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| import requests | |
| import pickle | |
| from bs4 import BeautifulSoup | |
| url = "https://icanhazdadjoke.com/" | |
| suburl = "search?term=&page=" | |
| jokes = [] | |
| try: | |
| with open('jokes.pickle', 'rb') as handle: | |
| jokes = pickle.load(handle) | |
| except FileNotFoundError: | |
| for i in range(1, 34): | |
| r = requests.get(url + suburl + str(i)) | |
| bs = BeautifulSoup(r.content, "html.parser") | |
| results = bs.find_all('pre') | |
| for result in results: | |
| jokes.append(str(result).replace('<pre style="background-color:inherit; white-space: pre-wrap">', "").replace("</pre>", "").strip()) | |
| with open('jokes.pickle', 'wb') as handle: | |
| pickle.dump(jokes, handle, protocol=pickle.HIGHEST_PROTOCOL) | |
| # print(jokes) | |
| joke_wordles = [] | |
| try: | |
| with open('joke_wordles.pickle', 'rb') as handle: | |
| joke_wordles = pickle.load(handle) | |
| except FileNotFoundError: | |
| for joke in jokes: | |
| tmp = "" | |
| for char in joke: | |
| if char.isalpha(): | |
| tmp += char.upper() | |
| elif char == "ñ": | |
| tmp += "N" | |
| joke_wordles.append(tmp) | |
| with open('joke_wordles.pickle', 'wb') as handle: | |
| pickle.dump(joke_wordles, handle, protocol=pickle.HIGHEST_PROTOCOL) | |
| # print(len(joke_wordles)) | |
| easy = False | |
| mode = str(input("Easy mode? ")) | |
| if mode and mode[0].lower() == "y": | |
| easy = True | |
| while(1): | |
| ans_len = int(input("Length: ")) | |
| if easy: | |
| first_two_char = str(input("First two characters: ")).upper().strip() | |
| f2c_filtered = filter(lambda x: x[:2]==first_two_char, joke_wordles) | |
| len_filtered = filter(lambda x: len(x)==ans_len, list(f2c_filtered)) | |
| else: | |
| len_filtered = filter(lambda x: len(x)==ans_len, joke_wordles) | |
| possibilities = list(len_filtered) | |
| while(1): | |
| # print(possibilities) | |
| total_possibilities = len(possibilities) | |
| print(f"Possibilities left: {total_possibilities}") | |
| maybe = possibilities[0] | |
| print(maybe) | |
| if total_possibilities==1: | |
| break | |
| found = str(input("found? ")) | |
| if found and found[0].lower() == "y": | |
| break | |
| try: | |
| corrects = list(map(int, str(input("Corrects: ")).strip().split(","))) | |
| except: | |
| corrects = [] | |
| print(corrects) | |
| pop_count = 0 | |
| for i in range(total_possibilities): | |
| for j in range(ans_len): | |
| if (j in corrects and maybe[j] != possibilities[i-pop_count][j]) or (j not in corrects and maybe[j] == possibilities[i-pop_count][j]): | |
| possibilities.pop(i-pop_count) | |
| pop_count+=1 | |
| break |
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manual is my earlier script which I try to input by hand, but I wasn't fast enough hence why I made the solve with pwntools (could've used sockets as well)
process:
webscraping all the jokes -> pickle the scraped jokes as cache as to not redo the webscraping -> solve it based on length with filters and also go through the correct/wrong character indexes and filter them out