dt-net 0.1.7

Network helper tools

dt-net

dt-net is a Python library to simplify network interactions. It has been tested in both Windows and Linux.

Features include:

• ip_info_helper - Retrieve info for local and internet IP addresses.
• Uses ipinfo.io API to retrive IP related information.
• Has local cache for performance and minimizing API calls.
• For WAN IPs:
• ip, hostname, city, region, country, GPS location, zip-code, timezone
• For LAN IPs:
• ip, hostname, bogon (identifies as local IP), mac, mac vendor
• A free **API token** is required to call the API
• Tokens can be aquired by going to https://ipinfo.io/signup
• Register token via dt_tools.cli.set_iphelper_token.py
• net_helper - Helper methods for
• IP routines: check validity, type (IPv4/IPv6), wan IP, LAN IP,...
• Lookup routines: ip to hostname, ip to mac,...
• LAN Scan: list of LAN clients.
• wifi_scanner - Identify wifi access points and their attributes.
• wol - Send WOL packets to target hosts

Installation

Download source code from githup via git

git clone https://github.com/JavaWiz1/dt-net.git

Note, when downloading source, Poetry was used as the package manager. Poetry handles creating the virtual environment and all dependent packages installs with proper versions.

To setup virtual environment with required production AND dev (sphinx) dependencies:

poetry install

with ONLY production packages (no sphinx):

poetry install --without dev

use the package manager pip to install dt-net.

pip install dt-net [--user]

Usage

A demo cli has been included to show how these modules can be used. The demo showcases how to use the many functions in each of the modules.

See dt_tools.cli.demos.dt_net_demos.py for detailed demo examples (runnable demo)

To run the demo type:

python -m dt_tools.cli.demo.dt_net_demos

# or if via source (and poetry)
poetry run python -m dt_tools.cli.demos.dt_net_demos

Developer package documentation contains details on all classes and supporting code (i.e. constant namespaces and enums) use for method calls. Docs can be found here.

Main classes/modules Overview

IpHelper (class)

This class provides information about an IP address.

It interfaces with the free ipinfo.io site. The ipinfo.io site requires a user token which is free.

• See 'setting up user token' in docs for information on aquiring and setting up token.

In order to minimize API calls and improve performance, a cache for IP and MAC information is created and stored locally.

The local data will be refresed if it is > 48 hours old. It can also be manually refreshed/cleared from cache.

The class provides the following information:

For WAN IPs:

• ip : xxx.xxx.xxx.xxx
• hostname : hostname.domain
• city : Atlanta
• region : Georgia
• country : US
• loc : 33.7490,-84.3880
• org : XXXXXXXXXXXX
• postal : 30302
• timezone : America/New_York

For LAN IPs:

• ip : xxx.xxx.xxx.xxx
• hostname : hostname.domain[or workgroup]
• bogon : True (identifies this as a local IP)
• mac : XX:XX:XX:XX:XX:XX
• vendor : Raspberry Pi Trading Ltd

    from dt_tools.net.ip_info_helper import IpHelper as helper
    import time

    local_ip = helper.get_local_ip()
    wan_ip = helper.get_wan_ip()
    google_ip = helper.get_ip_from_hostname('google.com')

    ip_dict = {"Local IP": local_ip, "WAN IP": wan_ip, "Google IP": google_ip, "Bad Address": "999.999.999.999"}
    for ip_name, ip in ip_dict.items():
        ip_dict = IpHelper.get_ip_info(ip)
        print('-----------------------------------------------')
        if 'error' in ip_dict.keys():
            print(f'IP Address      : {ip} ERROR')
        for key, val in ip_dict.items():
            print(f'{key:15} : {val}')
        time.sleep(2)

---

net_helper.py (module)

Network utilities helper module.

Functions to assist with network related information and tasks.

• ping
• local IP address
• get ip for given hostname
• get hostname for given ip
• get mac address for given hostname or ip
• get mac vendor
• get local client info on LAN

---

WiFiAdapterInfo (class) / nic.py (module)

Class and function to identify and report on Network cards (nic) and specifically WiFi cards and capabilities.

Information includes:

- Adapter Name
- MAC address
- SSID/BSSIDs
- Radio type
- Authentication method
- Cipher used for encryption
- Frequence Band of radio
- Broadcast channel
- Speed Transmit/Recieve
- Signal strength

---

wifi_scanner.py (module)

Scan for local access points and capture AP information.

Module contains classes -

• SSID: WiFi Network id information.
• BSSID: Unique access point id information.
• AccessPoint: Defines the WiFi network SSID and assocated BSSID's.
• Scanners: Scanners for Windows and Linux that gather WiFi network information.

    from dt_tools.os.os_helper import OSHelper
    import dt_tools.net.nic as nic_helper

    wifi_adapter_list = nic_helper.identify_wifi_adapters()
    if len(wifi_adapter_list) == 0:
        print('No WiFi adapters available.')
    else:
        scanner = None
        nic_name = wifi_adapter_list[0]
        if OSHelper.is_windows():
            scanner = WindowsWiFiScanner(nic_name)
        elif OSHelper.is_linux():
            scanner = IwlistWiFiScanner(nic_name)
        else:
            print('un-supported OS.')
        if scanner is not None:
            ap_list = scanner.scan_for_access_points()
            print(f'{len(ap_list)} access points identified.')
            names = [x.ssid.name for x in ap_list]
            print(','.join(names))

---

WOL (class)

Wake-on-LAN utility class

This class can be used to send WOL packet to target machines via IP or Hostname.

The wol function can optionally wait for the host to 'wake-up' and provide a status message indicating success or failure.

    from dt_tools.net.wol import WOL

    wol = WOL()
    wol.send_wol_to_host(myTargetHost, wait_secs=60)
    print(wol.status_message)

License

MIT