import requests
import queue
import re
import logging as log

# Init logging
log.basicConfig(level=log.INFO, format="%(asctime)-15s %(levelname)-8s %(message)s")
log.info("Shammer is getting ready...")

# Init static vars
INDEX_URL = "https://bitscuit.be/"

# Create session
session = requests.Session()

# Create website queue
urls = queue.Queue()
urls.put(INDEX_URL)

# Create list to store visited sites
visited = set([INDEX_URL])

# Loop
while not urls.empty():
    url = urls.get()

    # Perform request
    log.info("Fetching '%s'..."%url)
    try:
        r = session.get(url)
    except Exception as e:
        log.info("failed")
        log.info(e)
    finally:
        r.close()

    # Read response
    if r.status_code != 200:
        log.info("returned status %d"%r.status_code)
        continue

    # Filter page for hrefs
    hrefs = [res[0] for res in re.findall("(https*:\/\/([a-z0-9]+\.)*[a-z0-9]{3,}\.[a-z0-9]{2,}\/)", r.text)]

    # Add to queue
    numAdded = 0
    for href in hrefs:
        if href not in visited:
            urls.put(href)
            visited.add(href)
            numAdded += 1
    log.info("%d urls, %d new, queue length %d"%(len(hrefs), numAdded, urls.qsize()))