利用 python-nmap模块进行端口扫描,简单的实现方式
实现了三种输入方式
1)单个端口扫描,例如 python scanport.py -H host -P port
2)多个端口扫描,例如 python scanport.py -H host -P port1,port2,.....
3)连续端口扫描,例如 python scanport.py -H host -P start_port-end_port
#coding:utf-8
import nmap
import optparse
import sys
class INFO:
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
ARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
def scanport(host, port):
nm =nmap.PortScanner()
try:
result = nm.scan(host,port)
state = result['scan'][host]['tcp'][int(port)]['state']# 多层字典嵌套取值
if state =='open':
print INFO.OKBLUE+'[*] '+host+ ' tcp/'+port+" "+state+INFO.ENDC
else:
print INFO.WARNING+'[*] '+host+ ' tcp/'+port+" "+state+INFO.ENDC
except Exception,e:
raise e
if __name__ == '__main__':
parser = optparse.OptionParser("usage %prog -H <target host> -p <target port> or -p <start_port>-<end_port>")
parser.add_option('-H', dest='Host', type='string', help='specify target host')
parser.add_option('-P', dest='Port', type='string', help='specify target port[s] separated by "-"'or ",")
(options, args) = parser.parse_args()
if options.Host ==None or options.Port==None:
print parser.usage
sys.exit()
host = options.Host
ports = options.Port
print host,ports
#如果是连续的端口
if '-' in ports:
ports_list = ports.split('-')
for p in range(int(ports_list[0]),int(ports_list[1])+1):
scanport(host, str(p))
#其他的情况
else:
ports_list = ports.split(',')
for p in ports_list:
scanport(host, p)
上面的代码有点复杂,改良之后的代码如下:
优化结构
import nmap,argparse, sys
class INFO:
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
ARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
def scan_port(host, port):
nm = nmap.PortScanner()
try:
result= nm.scan(host,port)
print result
state = result['scan'][host]['tcp'][int(port)]['state']
if state == 'open':
print INFO.OKBLUE+'[*] '+host+ ' tcp/'+port+" "+state+INFO.ENDC
else:
print INFO.WARNING + '[*] ' + host + ' tcp/' + port + " " + state + INFO.ENDC
except Exception,e:
raise e
def get_args():
parger = argparse.ArgumentParser(description='port scan script')
parger.add_argument('-H', '--host', help='specify target host')
parger.add_argument('-P', '--port', help='specify target port')
args = parger.parse_args()
print args
if args.host == None:
parger.error('host is required')
sys.exit()
if args.port == None:
parger.error('host is required')
sys.exit()
else:
return args
def main():
args = get_args()
if '-' in args.port:
ports_list = args.port.split('-')
for p in range(int(ports_list[0]),int(ports_list[1])+1):
scan_port(args.host, str(p))
else:
ports_list = args.port.split(',')
for p in ports_list:
scan_port(args.host, p)
if __name__ == '__main__':
main()
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