added port scanners

Author: x4nth055

ethical-hacking/port_scanner/fast_port_scanner.py

@@ -0,0 +1,69 @@
+import argparse
+import socket # for connecting
+
+from threading import Thread
+from queue import Queue
+
+# number of threads, feel free to tune this parameter as you wish
+N_THREADS = 200
+# thread queue
+q = Queue()
+
+def port_scan(port):
+    """
+    Scan a port on the global variable `host`
+    """
+    try:
+        s = socket.socket()
+        s.connect((host, port))
+    except:
+        print(f"{host:15}:{port:5} is closed  ", end='\r')
+    else:
+        print(f"{host:15}:{port:5} is open    ")
+    finally:
+        s.close()
+
+
+def scan_thread():
+    global q
+    while True:
+        # get the port number from the queue
+        worker = q.get()
+        # scan that port number
+        port_scan(worker)
+        # tells the queue that the scanning for that port 
+        # is done
+        q.task_done()
+
+
+def main(host, ports):
+    global q
+    for t in range(N_THREADS):
+        # for each thread, start it
+        t = Thread(target=scan_thread)
+        t.daemon = True
+        t.start()
+
+    for worker in ports:
+        # for each port, put that port into the queue
+        # to start scanning
+        q.put(worker)
+    
+    # wait the threads ( port scanners ) to finish
+    q.join()
+
+
+if __name__ == "__main__":
+    # parse some parameters passed
+    parser = argparse.ArgumentParser(description="Simple port scanner")
+    parser.add_argument("host", help="Host to scan.")
+    parser.add_argument("--ports", "-p", dest="port_range", default="1-65535", help="Port range to scan, default is 1-65535 (all ports)")
+    args = parser.parse_args()
+    host, port_range = args.host, args.port_range
+
+    start_port, end_port = port_range.split("-")
+    start_port, end_port = int(start_port), int(end_port)
+
+    ports = [ p for p in range(start_port, end_port)]
+
+    main(host, ports)

ethical-hacking/port_scanner/simple_port_scanner.py

@@ -0,0 +1,29 @@
+import socket # for connecting
+
+def is_port_open(host, port):
+    """
+    determine whether `host` has the `port` open
+    """
+    # creates a new socket
+    s = socket.socket()
+    try:
+        # tries to connect to host using that port
+        s.connect((host, port))
+        # make timeout if you want it a little faster ( less accuracy )
+        # s.settimeout(0.2)
+    except:
+        # cannot connect, port is closed
+        # return false
+        return False
+    else:
+        # the connection was established, port is open!
+        return True
+
+# get the host from the user
+host = input("Enter the host:")
+# iterate over ports, from 1 to 1024
+for port in range(1, 1025):
+    if is_port_open(host, port):
+        print(f"[+] {host}:{port} is open      ")
+    else:
+        print(f"[!] {host}:{port} is closed    ", end="\r")