Add files

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+# End of https://mrkandreev.name/snippets/gitignore-generator/#Python,PyCharm+all,VisualStudioCode

LICENSE

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+Copyright 2024 John Toniutti
+
+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

@@ -1 +1,22 @@
-# pyown
+# OpenWebNet parser for Python
+
+This is a Python library to connect and parse OpenWebNet messages from Bticino/Legrand gateways.
+
+Currently it's a WIP, but it's already able to connect to the gateway and parse some messages.
+
+## What is OpenWebNet?
+
+OpenWebNet is a home automation protocol developed by Bticino (now part of Legrand) to control domotic devices like lights, shutters, heating, etc.
+It was developed around 2000 and it's still used today in many installations.
+It does not implement any encryption, so it's not secure to use it over the internet.
+Also many devices implement only the old password algorithm, which is easily bruteforceable.
+So, when using OpenWebNet, be sure to use it only in a trusted network and taking security measures, like vlan separation.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+
+## Acknowledgments
+
+* [openwebnet documentation](https://developer.legrand.com/Documentation/)
+* [old password algorithm](https://rosettacode.org/wiki/OpenWebNet_password#Python)

pyown/__main__.py

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+import asyncio
+import argparse
+
+from tqdm import tqdm
+
+from .client import OWNClient
+from .message import *
+from .constants.who import *
+
+
+def build_active_power_request(device: str) -> RawMessage:
+    """Build the active power request message."""
+    return RawMessage(["#" + ENERGY_MANAGEMENT, device, "113"])
+
+
+async def main(host: str, port: int, password: int) -> None:
+    """Run the OpenWebNet client."""
+    client = OWNClient(host, port, password)
+    await client.connect()
+
+
+    print(f"Connected to {host}:{port}")
+
+    # Scan the OpenWebNet bus for energy management devices
+    while True:
+        await asyncio.sleep(0.5)
+        print()
+        try:
+            for i in range(1, 4):
+                who = f"5{i}"
+
+                message = build_active_power_request(who)
+                await client.send(message)
+                response = await client.recv()
+
+                if response == ACK:
+                    continue
+
+                if await client.recv() != ACK:
+                    continue
+
+                device = int(response.tags[-3])
+                power = int(response.tags[-1])
+
+                print(f"Device: {device}, Power: {power}W")
+        except KeyboardInterrupt:
+            break
+
+    await client.close()
+    print("Disconnected")
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="OpenWebNet client")
+    parser.add_argument("--host", type=str, help="The OpenWebNet gateway IP address", default="192.168.0.120")
+    parser.add_argument("--port", type=int, help="The OpenWebNet gateway port", default=20000)
+    parser.add_argument("--password", type=str, help="The OpenWebNet gateway password", default="12345")
+    args = parser.parse_args()
+
+    asyncio.run(main(args.host, args.port, args.password))

pyown/auth/open.py

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+def ownCalcPass(password: str | int, nonce: str, test: bool = False) -> str:
+    start = True    
+    num1 = 0
+    num2 = 0
+
+    if isinstance(password, str):
+        password = int(password)
+
+    if test:
+        print("password: %08x" % (password))
+    for c in nonce :
+        if c != "0":
+            if start:
+                num2 = password
+            start = False
+        if test:
+            print("c: %s num1: %08x num2: %08x" % (c, num1, num2))
+        if c == '1':
+            num1 = (num2 & 0xFFFFFF80) >> 7
+            num2 = num2 << 25
+        elif c == '2':
+            num1 = (num2 & 0xFFFFFFF0) >> 4
+            num2 = num2 << 28
+        elif c == '3':
+            num1 = (num2 & 0xFFFFFFF8) >> 3
+            num2 = num2 << 29
+        elif c == '4':
+            num1 = num2 << 1
+            num2 = num2 >> 31
+        elif c == '5':
+            num1 = num2 << 5
+            num2 = num2 >> 27
+        elif c == '6':
+            num1 = num2 << 12
+            num2 = num2 >> 20
+        elif c == '7':
+            num1 = num2 & 0x0000FF00 | (( num2 & 0x000000FF ) << 24 ) | (( num2 & 0x00FF0000 ) >> 16 )
+            num2 = ( num2 & 0xFF000000 ) >> 8
+        elif c == '8':
+            num1 = (num2 & 0x0000FFFF) << 16 | ( num2 >> 24 )
+            num2 = (num2 & 0x00FF0000) >> 8
+        elif c == '9':
+            num1 = ~num2
+        else :
+            num1 = num2
+
+        num1 &= 0xFFFFFFFF
+        num2 &= 0xFFFFFFFF
+        if (c not in "09"):
+            num1 |= num2
+        if test:
+            print("     num1: %08x num2: %08x" % (num1, num2))
+        num2 = num1
+
+    return str(num1)