Initial commit

.gitignore

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+# Python byte translated files
+__pycache__/
+*.py[cod]
+
+# Python specific
+venv/
+dist/
+build/
+eggs/
+*.egg-info
+
+# VisualStudio Code
+.vscode/
+*.code-workspace

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [email protected]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

LICENSE

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+MIT License
+
+Copyright (c) 2019 bitbrute
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+<p align="center"><img src="https://i.imgur.com/8M1LJMx.jpg" /></p>
+
+# Evil Limiter
+
+[![License Badge](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+[![Compatibility](https://img.shields.io/badge/python-3-brightgreen.svg)](PROJECT)
+[![Maintenance](https://img.shields.io/badge/Maintained%3F-yes-green.svg)](https://GitHub.com/Naereen/StrapDown.js/graphs/commit-activity)
+[![HitCount](http://hits.dwyl.io/bitbrute/evillimiter.svg)](http://hits.dwyl.io/bitbrute/evillimiter)
+[![Open Source Love](https://badges.frapsoft.com/os/v3/open-source.svg?v=102)](https://github.com/ellerbrock/open-source-badge/)
+
+A tool to limit the bandwidth (upload/download) of devices connected to your network without physical or administrative access.<br>
+```evillimiter``` employs [ARP spoofing](https://en.wikipedia.org/wiki/ARP_spoofing) and [traffic shaping](https://en.wikipedia.org/wiki/Traffic_shaping) to throttle the bandwidth of hosts on the network. This is explained in detail below.
+
+## Requirements
+- Linux distribution
+- Python 3 or greater
+
+Possibly missing python packages will be installed during the installation process.
+
+## Installation
+
+```bash
+git clone https://github.com/bitbrute/evillimiter.git
+cd evillimiter
+sudo python3 setup.py install
+```
+
+Alternatively, you can download a desired version from the [Release page](https://github.com/bitbrute/evillimiter/releases).<br>
+
+## Usage
+
+Type ```evillimiter``` or ```python3 bin/evillimiter``` to run the tool.
+
+```evillimiter``` will try to resolve required information (network interface, netmask, gateway address, ...) on its own, automatically.
+
+#### Command-Line Arguments
+
+| Argument | Explanation |
+| -------- | ----------- |
+| ```-h``` | Displays help message listing all command-line arguments |
+| ```-i [Interface Name]``` | Specifies network interface (resolved if not specified)|
+| ```-g [Gateway Address]``` | Specifies gateway IP address (resolved if not specified)|
+| ```-n [Netmask Address]``` | Specifies netmask (resolved if not specified)|
+| ```-f``` | Flushes current iptables and tc configuration. Ensures that packets are dealt with correctly.|
+| ```--colorless``` | Disables colored output |
+
+#### ```evillimiter``` Commands
+
+| Command | Explanation |
+| ------- | ----------- |
+| ```scan``` | Scans your network for online hosts. One of the first things to do after start.
+| ```hosts``` | Displays all the hosts/devices previously scanned and basic information. Shows ID for each host that is required for interaction.
+| ```limit [ID] [Rate]``` | Limits bandwidth of host associated to specified ID. Rate determines the internet speed.<br>Valid rates: ```bit```, ```kbit```, ```mbit```, ```gbit```, ```tbit```<br>For example: ```limit 4 200kbit``` or ```limit 2 1gbit```
+| ```block [ID]``` | Blocks internet connection of host associated to specified ID.
+| ```free [ID]``` | Unlimits/Unblocks host associated to specified ID. Removes all further restrictions.
+| ```clear``` | Clears the terminal window.
+| ```?```, ```help``` | Displays command information similar to this one.
+
+## Restrictions
+
+- **Limits IPv4 connctions only**, since [ARP spoofing](https://en.wikipedia.org/wiki/ARP_spoofing) requires the ARP packet that is only present  on IPv4 networks.
+
+## Disclaimer
+[Evil Limiter](https://github.com/bitbrute/evillimiter) is provided by [bitbrute](https://github.com/bitbrute) "as is" and "with all faults". The provider makes no representations or warranties of any kind concerning the safety, suitability, lack of viruses, inaccuracies, typographical errors, or other harmful components of this software. There are inherent dangers in the use of any software, and you are solely responsible for determining whether Evil Limiter is compatible with your equipment and other software installed on your equipment. You are also solely responsible for the protection of your equipment and backup of your data, and the provider will not be liable for any damages you may suffer in connection with using, modifying, or distributing this software. 
+
+## License
+
+Copyright (c) 2019 by [bitbrute](https://github.com/bitbrute). Some rights reserved.<br>
+[Evil Limiter](https://github.com/bitbrute/evillimiter) is licensed under the MIT License as stated in the [LICENSE file](LICENSE).

bin/evillimiter

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+
+
+if __name__ == '__main__':
+    dir_of_executable = os.path.dirname(__file__)
+    path_to_project_root = os.path.abspath(os.path.join(dir_of_executable, '..'))
+    sys.path.insert(0, path_to_project_root)
+    os.chdir(path_to_project_root)
+
+    from evillimiter.evillimiter import run # pylint: disable=no-name-in-module
+    sys.exit(run())

evillimiter/__init__.py

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+__version__ = '1.0.0'
+__description__ = 'Limits bandwidth of devices on the same network'

evillimiter/common/globals.py

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+import os
+
+
+DEVNULL = open(os.devnull, 'w')
+BROADCAST = 'ff:ff:ff:ff:ff:ff'
+
+BIN_TC = '/sbin/tc'
+BIN_IPTABLES = '/sbin/iptables'
+BIN_SYSCTL = '/sbin/sysctl'
+
+IP_FORWARD_LOC = 'net.ipv4.ip_forward'

evillimiter/console/banner.py

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+from .io import IO
+
+
+_MAIN_BANNER = rf"""{IO.Fore.LIGHTRED_EX}
+███████╗██╗   ██╗██╗██╗       ██╗     ██╗███╗   ███╗██╗████████╗███████╗██████╗ 
+██╔════╝██║   ██║██║██║       ██║     ██║████╗ ████║██║╚══██╔══╝██╔════╝██╔══██╗
+█████╗  ██║   ██║██║██║       ██║     ██║██╔████╔██║██║   ██║   █████╗  ██████╔╝
+██╔══╝  ╚██╗ ██╔╝██║██║       ██║     ██║██║╚██╔╝██║██║   ██║   ██╔══╝  ██╔══██╗
+███████╗ ╚████╔╝ ██║███████╗  ███████╗██║██║ ╚═╝ ██║██║   ██║   ███████╗██║  ██║
+╚══════╝  ╚═══╝  ╚═╝╚══════╝  ╚══════╝╚═╝╚═╝     ╚═╝╚═╝   ╚═╝   ╚══════╝╚═╝  ╚═╝
+                {IO.Style.RESET_ALL + IO.Style.BRIGHT}by bitbrute  ~  limit devices on your network :3
+                                    v[_V_]
+
+"""
+
+
+def get_main_banner(version):
+    return _MAIN_BANNER.replace('[_V_]', version)

evillimiter/console/io.py

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+import re
+import colorama
+
+from . import shell
+
+
+class IO(object):
+    _ANSI_CSI_RE = re.compile('\001?\033\\[((?:\\d|;)*)([a-zA-Z])\002?') 
+
+    Back = colorama.Back
+    Fore = colorama.Fore
+    Style = colorama.Style
+
+    colorless = False
+
+    @staticmethod
+    def initialize(colorless=False):
+        """
+        Initializes console input and output.
+        """
+        IO.colorless = colorless
+        if not colorless:
+            colorama.init(autoreset=True)
+
+    @staticmethod
+    def print(text, end='\n', flush=False):
+        """
+        Writes a given string to the console.
+        """
+        if IO.colorless:
+            text = IO._remove_colors(text)
+
+        print(text, end=end, flush=flush)
+
+    @staticmethod
+    def ok(text, end='\n'):
+        """
+        Print a success status message
+        """
+        IO.print(f'{IO.Style.BRIGHT + IO.Fore.LIGHTGREEN_EX}OK{IO.Style.RESET_ALL}   {text}', end=end)
+
+    @staticmethod
+    def error(text):
+        """
+        Print an error status message
+        """
+        IO.print(f'{IO.Style.BRIGHT + IO.Fore.LIGHTRED_EX}ERR{IO.Style.RESET_ALL}  {text}')
+
+    @staticmethod
+    def spacer():
+        """
+        Prints a blank line for attraction purposes
+        """
+        IO.print('')
+
+    @staticmethod
+    def input(prompt):
+        """
+        Prompts the user for input.
+        """
+        if IO.colorless:
+            prompt = IO._remove_colors(prompt)
+
+        return input(prompt)
+
+    @staticmethod
+    def clear():
+        """
+        Clears the terminal screen
+        """
+        shell.execute('clear')
+
+    @staticmethod
+    def _remove_colors(text):
+        edited = text
+
+        for match in IO._ANSI_CSI_RE.finditer(text):
+                s, e = match.span()
+                edited = edited.replace(text[s:e], '')
+
+        return edited

evillimiter/console/shell.py

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+import subprocess
+
+from evillimiter.common.globals import DEVNULL
+
+
+def execute(command, root=True):
+    return subprocess.call('sudo ' + command if root else command, shell=True)
+
+
+def execute_suppressed(command, root=True):
+    return subprocess.call('sudo ' + command if root else command, shell=True, stdout=DEVNULL, stderr=DEVNULL)