From 692ded373d6bf3882c2b98dbdc306eea62caaa76 Mon Sep 17 00:00:00 2001
From: Nir <nir61202@gmail.com>
Date: Wed, 2 Oct 2019 19:56:42 +0300
Subject: [PATCH] Add Port Scanner Utility

---
 Port_Scanner/README.md       |  8 ++++++++
 Port_Scanner/port_scanner.py | 40 ++++++++++++++++++++++++++++++++++++
 README.md                    |  1 +
 3 files changed, 49 insertions(+)
 create mode 100644 Port_Scanner/README.md
 create mode 100644 Port_Scanner/port_scanner.py

diff --git a/Port_Scanner/README.md b/Port_Scanner/README.md
new file mode 100644
index 0000000..027a646
--- /dev/null
+++ b/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.
\ No newline at end of file
diff --git a/Port_Scanner/port_scanner.py b/Port_Scanner/port_scanner.py
new file mode 100644
index 0000000..a6a828d
--- /dev/null
+++ b/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)
\ No newline at end of file
diff --git a/README.md b/README.md
index 43dffa3..1d66c4c 100644
--- a/README.md
+++ b/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.