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find_mail_crawler.py
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find_mail_crawler.py
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import sys
import requests
import re
from bs4 import BeautifulSoup
TO_CRAWL = []
CRAWLED = set()
EMAILS = []
def request(link):
#header = {'User-Agent': 'Mozilla/5.0'} #example
try:
response = requests.get(link)
response.close()
return response.text
except KeyboardInterrupt:
sys.exit(0)
except:
pass
def get_links(html):
links = []
try:
soup = BeautifulSoup(html, 'html.parser')
tags_a_finded = soup.find_all('a', href=True)
for tag in tags_a_finded:
link = tag['href']
if link.startswith('http'):
links.append(link)
return links
except:
pass
def get_emails(html):
try:
emails = re.findall(r'\w[\w\.]+\w@\w[\w\.]+\w', html)
return emails
except KeyboardInterrupt:
sys.exit(0)
def crawl():
while True:
if TO_CRAWL:
url = TO_CRAWL.pop()
html = request(url)
if html:
links = get_links(html)
if links:
for link in links:
if link not in CRAWLED and link not in TO_CRAWL:
TO_CRAWL.append(link)
emails = get_emails(html)
for email in emails:
if email not in EMAILS:
print(f'email found! -> {email}')
EMAILS.append(email)
CRAWLED.add(url)
else:
CRAWLED.add(url)
else:
print('Done!')
break
if __name__ == '__main__':
url = sys.argv[1]
TO_CRAWL.append(url)
crawl()