Add first version

.editorconfig

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+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = false
+insert_final_newline = true

.gitignore

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+### Python https://github.com/github/gitignore 8e67b9420cb6796e5eeca72682babdb06627ec8c
+# 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
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__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/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+### VisualStudioCode https://github.com/github/gitignore bf3f140cfabe05651c4338ad6e2ca173299f93df
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix

.vscode/extensions.json

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+{
+	"recommendations": [
+		"EditorConfig.EditorConfig"
+	]
+}

app.py

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+import json
+import hashlib
+import hmac
+from backend import handle_data
+from settings import *
+
+def app(environ, start_response):
+	try:
+		data: dict = get_data(environ.copy())
+	except Exception as e:
+		start_response('400', [
+			('Content-Type', 'text/plain')
+		])
+		return iter([str(e).encode()])
+
+	try:
+		logging: str = handle_data(data)
+	except Exception as e:
+		start_response('500', [
+			('Content-Type', 'text/plain')
+		])
+		return iter([str(e).encode()])
+
+	start_response('200 OK', [
+		('Content-Type', 'text/plain')
+	])
+
+	return iter([logging.encode()])
+
+def get_data(environ):
+	if environ['REQUEST_METHOD'] == 'POST':
+		if 'application/json' != environ.get('CONTENT_TYPE'):
+			raise Exception('Error: Content-Type is not application/json: ' + environ.get('CONTENT_TYPE'))
+
+		try:
+			request_body_size = int(environ.get('CONTENT_LENGTH', 0))
+		except (ValueError):
+			request_body_size = 0
+
+		if 0 == request_body_size:
+			raise Exception('Error: Content-Length is 0')
+
+		request_body = environ.get('wsgi.input').read(request_body_size)
+
+		signature = environ.get('HTTP_X_GITEA_SIGNATURE')
+
+		if not signature:
+			raise Exception('Error: Missing signature')
+
+		signature_actual = hmac.new(SECRET_KEY.encode(), request_body, hashlib.sha256).hexdigest()
+
+		if signature_actual != signature:
+			raise Exception('Error: Signature could not be validated')
+
+		try:
+			data = json.loads(request_body)
+		except json.decoder.JSONDecodeError as e:
+			raise Exception('Error: Could not parse the JSON body: %s' % e)
+
+		return data
+	else:
+		raise Exception('Error: Request is not POST: ' + environ.get('REQUEST_METHOD'))

backend.py

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+"""
+Here you can perform your actions, depending on the information given in the
+data dictionary. The returned string will be the plain-text body of the response
+to the web-hook request.
+"""
+
+def handle_data(data: dict) -> str:
+	return "Done"

settings.py

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+import os
+
+'''
+This variable stores the secret key (as a string) for calculating the signature
+to compare it with the one in the request. This secret key must be equal to the
+one set in the web-hook settings.
+'''
+SECRET_KEY = os.environ['WEBHOOK_KEY']