Google IP availability detection script implemented by Python

This article mainly introduces the GoogleIP availability detection script implemented by Python. this script requires the Python3.4 + environment. For more information, see Python 3.4 +, A parameter is used to test the search service or GAE service. To test the GAE service, you must first modify the two variables at the beginning. Read the list of IP addresses or IP segments (such as 192.168.0.0/16) from the standard input. each line contains one. The available IP address is output to the standard output. Real-time test results are output to standard errors. 50 concurrent threads.

Checkgoogleip

#! /Usr/bin/env python3 import sysfrom ipaddress import IPv4Networkimport http. client as clientfrom concurrent. futures import ThreadPoolExecutorimport argparseimport sslimport socket # First modify the following lines according to your own situation: APP_ID = 'Your _ id_here 'APP _ PATH ='/fetch. py 'context = ssl. SSLContext (ssl. PROTOCOL_TLSv1) context. verify_mode = ssl. CERT_REQUIREDcontext.load_verify_locations ('/etc/ssl/certs/ca-certificates.crt') class HTT PSConnection (client. HTTPSConnection): def _ init _ (self, * args, hostname = None, ** kwargs): self. _ hostname = hostname super (). _ init _ (* args, ** kwargs) def connect (self): super (client. HTTPSConnection, self ). connect () if self. _ tunnel_host: server_hostname = self. _ tunnel_host else: server_hostname = self. _ hostname or self. host sni_hostname = server_hostname if ssl. HAS_SNI else None self. sock = self. _ c Ontext. wrap_socket (self. sock, server_hostname = sni_hostname) if not self. _ context. check_hostname and self. _ check_hostname: try: ssl. match_hostname (self. sock. getpeercert (), server_hostname) failed t Exception: self. sock. shutdown (socket. SHUT_RDWR) self. sock. close () raise def check_ip_p (ip, func): if func (ip): print (ip, flush = True) def check_for_gae (ip ): return _ check (APP_ID + '.appspot.com', APP_PATH, Ip) def check_for_search (ip): return _ check ('www .google.com ','/', ip) def _ check (host, path, ip ): for chance in range (1,-1,-1): try: conn = HTTPSConnection (ip, timeout = 5, context = context, hostname = host,) conn. request ('GET', path, headers = {'host': Host,}) response = conn. getresponse () if response. status <400: print ('good: ', ip, file = sys. stderr) else: raise Exception ('http Error % s % s' % (Response. status, response. reason) return True except T KeyboardInterrupt: raise except T Exception as e: if isinstance (e, ssl. certificateError): print ('WARN: % s is not Google \'s! '% Ip, file = sys. stderr) chance = 0 if chance = 0: print ('Bad: ', ip, e, file = sys. stderr) return False else: print ('Re: ', ip, e, file = sys. stderr) def main (): parser = argparse. argumentParser (description = 'check Google IPs') parser. add_argument ('service', choices = ['search', 'gae'], help = 'service to check') args = parser. parse_args () func = globals () ['Check _ for _ '+ args. service] count = 0 with ThreadPoolExecutor (max_workers = 50) as executor: for l in sys. stdin: l = l. strip () if '/' in l: for ip in IPv4Network (l ). hosts (): executor. submit (check_ip_p, str (ip), func) count + = 1 else: executor. submit (check_ip_p, l, func) count + = 1 print ('% d IP checked. '% count) if _ name _ =' _ main _ ': main ()