Initial commit

Author: JasonQiu

.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
+
+# 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/

gunicorn.sh

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+#!/bin/bash
+
+gunicorn --bind=0.0.0.0:6380 --worker-class=gevent main:app

main.py

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+from dotenv import load_dotenv
+from flask import Flask
+from flask_httpauth import HTTPBasicAuth
+from werkzeug.security import generate_password_hash, check_password_hash
+import redis
+
+import os
+
+
+# Use singleton for Redis connection pool
+# https://stackoverflow.com/questions/49398590/correct-way-of-using-redis-connection-pool-in-python
+class Singleton(type):
+    """
+    A metaclass for singleton purpose. Every singleton class should inherit from this class by 'metaclass=Singleton'.
+    """
+    _instances = {}
+
+    def __call__(cls, *args, **kwargs):
+        if cls not in cls._instances:
+            cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
+        return cls._instances[cls]
+
+
+class Redis(metaclass=Singleton):
+    def __init__(self):
+        self.pool = {db: redis.ConnectionPool(host=os.environ['HOST'], port=os.environ['PORT'], password=os.environ['PASS'], db=db, decode_responses=True) for db in range(16)}
+
+    @property
+    def conn(self):
+        if not hasattr(self, '_conn'):
+            self.get_connection()
+        return self._conn
+
+    def get_connection(self):
+        self._conn = {db: redis.Redis(connection_pool=self.pool[db]) for db in range(16)}
+
+
+class RedisProxy:
+    def __init__(self, clients: Redis):
+        self.clients = clients
+
+    def sadd(self, db: int, name: str, *values):
+        return {'SADD': self.clients.conn[int(db)].sadd(name, *values)}
+
+    def zrange(self, db: int, name: str, start: str, end: str, byscore=''):
+        return {'ZRANGE': self.clients.conn[int(db)].zrange(name, start, end, byscore=True if byscore == 'BYSCORE' else False)}
+
+
+load_dotenv()
+
+app = Flask(__name__)
+
+clients = Redis()
+proxy = RedisProxy(clients)
+users = {
+    os.environ['AUTH_USERNAME']: generate_password_hash(os.environ['AUTH_PASSWD'])
+}
+
+auth = HTTPBasicAuth()
+
+
+@auth.verify_password
+def verify_password(username, password):
+    if username in users and check_password_hash(users.get(username), password):
+        return username
+
+
+@app.route('/<path:subpath>', methods=['POST'])
+@auth.login_required
+def triage(subpath):
+    arguments = subpath.split('/')
+
+    try:
+        if int(arguments[0]) not in range(16):
+            return {}, 400
+        if arguments[1] == 'SADD':
+            return proxy.sadd(arguments[0], *arguments[2:])
+        if arguments[1] == 'ZRANGE':
+            return proxy.zrange(arguments[0], *arguments[2:])
+    except Exception as e:
+        return {"message": str(e)}, 400
+
+    return {}, 404
+
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=6380)

requirements.txt

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+blinker==1.8.2
+click==8.1.7
+Flask==3.0.3
+Flask-HTTPAuth==4.8.0
+gevent==24.2.1
+greenlet==3.0.3
+gunicorn==23.0.0
+itsdangerous==2.2.0
+Jinja2==3.1.4
+MarkupSafe==2.1.5
+packaging==24.1
+python-dotenv==1.0.1
+redis==5.0.8
+setuptools==72.2.0
+Werkzeug==3.0.3
+zope.event==5.0
+zope.interface==7.0.1