From add8088585491f49f3df5f254079776db054c3b9 Mon Sep 17 00:00:00 2001
From: Be <be@c24>
Date: Thu, 29 Feb 2024 14:46:46 +0100
Subject: [PATCH] Add the AS Networks List Script

---
 README.md          | 50 +++++++++++++++++++++++++++++++++++++++++++++-
 as_network_list.py | 32 +++++++++++++++++++++++++++++
 requirements.sh    |  3 +++
 requirements.txt   |  5 +++++
 4 files changed, 89 insertions(+), 1 deletion(-)
 create mode 100755 as_network_list.py
 create mode 100755 requirements.sh
 create mode 100644 requirements.txt

diff --git a/README.md b/README.md
index ae3c675..49ac382 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,49 @@
-# AS_Network_List
\ No newline at end of file
+# AS Prefixes List Script
+
+## Description
+
+* This Python script retrieves and prints the prefixes announced by a specified Autonomous System (AS). It uses the RIPE Stat Data API to fetch the data.
+
+* Tested only on MacOS and Linux :)
+
+## Installation
+
+1. Make sure you have Python 3 installed. You can download it from the [official website](https://www.python.org/downloads/).
+
+2. Clone this repository:
+
+    ```bash
+    git clone https://github.com/C24Be/AS_Network_List.git
+    ```
+
+3. Navigate to the repository folder:
+
+    ```bash
+    cd AS_Network_List
+    ```
+
+4. Install requirements:
+
+    ```bash
+    ./requirements.sh
+    ```
+
+## Usage
+
+1. Run the script with the AS number as an argument:
+
+    ```bash
+    python ASList.py AS61280
+    ```
+
+2. If you want to disable all output except the prefixes, use the --quiet or -q switch:
+
+    ```bash
+    python ASList.py AS61280 --quiet
+    ```
+
+3. If you run the script with the -h or --help switch, it will print a help message:
+
+    ```bash
+    python ASList.py --help
+    ```
diff --git a/as_network_list.py b/as_network_list.py
new file mode 100755
index 0000000..68317a8
--- /dev/null
+++ b/as_network_list.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+import requests
+import argparse
+
+def get_as_prefixes(asn):
+    url = f"https://stat.ripe.net/data/announced-prefixes/data.json?resource={asn}"
+    response = requests.get(url)
+    if response.status_code == 200:
+        data = response.json()
+        prefixes = data['data']['prefixes']
+        return [prefix['prefix'] for prefix in prefixes]
+    else:
+        return []
+
+def main():
+    parser = argparse.ArgumentParser(description='Get prefixes announced by an AS.')
+    parser.add_argument('asn', help='The AS number to get prefixes for.')
+    parser.add_argument('-q', '--quiet', action='store_true', help='Disable all output except prefixes.')
+    args = parser.parse_args()
+
+    asn = args.asn
+    prefixes = get_as_prefixes(asn)
+
+    if not args.quiet:
+        print(f"Prefixes announced by {asn}:")
+
+    for prefix in prefixes:
+        print(prefix)
+
+if __name__ == "__main__":
+    main()
diff --git a/requirements.sh b/requirements.sh
new file mode 100755
index 0000000..564617a
--- /dev/null
+++ b/requirements.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+pip install -r requirements.txt
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..6b16dbc
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+certifi==2024.2.2
+charset-normalizer==3.3.2
+idna==3.6
+requests==2.31.0
+urllib3==2.2.1