Add a port scanner script. #1118

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	# Package/Script Name
	Port Scanner
	## Short description of package/script

	- Use nmap to scan and detect the specified server port
	- You can also use this script to customize it to achieve the effect you want.

	## Setup instructions
	1. First you need to install nmap, centos as an example.

	```
	yum install nmap
	```

	2. Installing NAMP's Python library

	```
	pip3 install python-nmap
	```

	## Output
	images link :
	Images/output.png

	![preview](https://github.com/Ethan-622/Awesome_Python_Scripts/blob/main/BasicPythonScripts/Port%20Scanner/Images/output.png)


	## Author(s)
	Ethan

46 changes: 46 additions & 0 deletions BasicPythonScripts/Port Scanner/port_scanner.py

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	import sys
	import nmap

	def main():
	input_data = input("Please input hosts and ports (e.g., '192.168.1.1 80,443'): ")
	scan_row = input_data.strip().split()

	if len(scan_row) != 2:
	print("Error! Please provide both hosts and ports.")
	sys.exit(1)

	hosts = scan_row[0]
	ports = scan_row[1]

	try:
	nm = nmap.PortScanner()
	except nmap.PortScannerError as e:
	print(e)
	print("Nmap not found! Ensure that Nmap is installed.")
	sys.exit(1)
	except Exception as e:
	print(f"Unexpected error: {str(e)}")
	sys.exit(1)

	try:
	print(f"Scanning {hosts} on ports {ports}...")
	nm.scan(hosts=hosts, arguments=f'-v -sS -p {ports}')
	except Exception as e:
	print(f"Scan error: {str(e)}")
	sys.exit(1)

	for host in nm.all_hosts():
	print('-------------------------------------------')
	print(f'Host : {host} ({nm[host].hostname()})')
	print(f'State : {nm[host].state()}')

	for proto in nm[host].all_protocols():
	print('-------------------')
	print(f'Protocol : {proto}')
	ports = sorted(nm[host][proto].keys())
	for port in ports:
	state = nm[host][proto][port]['state']
	print(f'Port : {port}\tState : {state}')

	if __name__ == "__main__":
	main()

1 change: 1 addition & 0 deletions BasicPythonScripts/Port Scanner/requirements.txt

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	python-nmap=>0.7.1

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