Merge pull request #56 from Plutoberth/master

Add a port scanner utility

Port_Scanner/README.md

@@ -0,0 +1,8 @@
+# Port Scanner
+A simple tool that asynchronously scans a server's ports with python. It's pretty quick as it processes ports in batches of 256.
+
+## Required libraries
+None, the only libraries that are used are built-ins.
+
+## Usage
+Use "port_scanner.py", and enter the IP that you want to scan when prompted.

Port_Scanner/port_scanner.py

@@ -0,0 +1,40 @@
+import asyncio
+from random import SystemRandom
+
+def run(tasks, *, loop=None):
+    """Run Asynchronous Tasks"""
+    if loop is None:
+        loop = asyncio.get_event_loop()
+    # waiting for all tasks
+    return loop.run_until_complete(asyncio.wait(tasks))
+
+async def scanner(ip, port, loop=None):
+    fut = asyncio.open_connection(ip, port, loop=loop)
+
+    try:
+        reader, writer = await asyncio.wait_for(fut, timeout=0.5) # This is where it is blocking?
+        print("{}:{} Connected".format(ip, port))
+    except asyncio.TimeoutError:
+        pass
+    # handle connection refused and bunch of others
+    except Exception as exc:
+        print('Error {}:{} {}'.format(ip, port, exc))
+
+def scan(ips, ports, randomize=False):
+    """Scan the ports"""
+    loop = asyncio.get_event_loop()
+    if randomize:
+        rdev = SystemRandom()
+        ips = rdev.shuffle(ips)
+        ports = rdev.shuffle(ports)
+
+    # let's pass list of task, not only one
+    run([scanner(ip, port) for port in ports for ip in ips])
+
+
+ips = [input("IP to scan: ")]
+STEP = 256
+for r in range(STEP+1, 65536, STEP):
+    # print(r)
+    ports = [str(r) for r in list(range(r-STEP, r))]
+    scan(ips, ports)

README.md

@@ -48,6 +48,7 @@ So far, the following projects have been integrated to this repo:
 - [Colored B&W Image Converter](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Color_to_BW_Converter) by [Nitish Srivastava](https://github.com/nitish-iiitd)
 - [Gmail Mailing Script](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/mailing) by [mayank-kapur](https://github.com/kapurm17)
 - [Take Screenshot](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Take_screenshot) by [Moad Mohammed Elhebri](https://github.com/moadmmh)
+- [Port Scanner](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Port_Scanner) by [Plutoberth](https://github.com/Plutoberth)
 
 ## Contribuition Guidelines :
 - Make a Seperate Folder for the Script.