commit cc3bdce54b614af942d3e9cc67e2adc8fbf16113 Author: lza_menace Date: Tue Feb 21 10:20:23 2023 -0800 init diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b860595 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +.venv +*.pyc +chat.db* \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..e4e5ba7 --- /dev/null +++ b/README.md @@ -0,0 +1,17 @@ +# trollbox + +Simple websocket server to allow "trollboxes" in your frontend; real-time chat. Persistence happens in a SQLite database `chat.db`. + +`/ws` is the pub/sub websocket endpoint to point clients to. +`/replay` is the http endpoint to replay the chat log so new clients can read scrollback. + +You can write your own client, I used `react-use-websocket` in my last site. + +## Setup + +``` +python3 -m venv .venv +.venv/bin/pip install poetry +poetry install +poetry run start +``` \ No newline at end of file diff --git a/poetry.lock b/poetry.lock new file mode 100644 index 0000000..fe70af6 --- /dev/null +++ b/poetry.lock @@ -0,0 +1,318 @@ +# This file is automatically @generated by Poetry and should not be changed by hand. + +[[package]] +name = "aiofiles" +version = "23.1.0" +description = "File support for asyncio." +category = "main" +optional = false +python-versions = ">=3.7,<4.0" +files = [ + {file = "aiofiles-23.1.0-py3-none-any.whl", hash = "sha256:9312414ae06472eb6f1d163f555e466a23aed1c8f60c30cccf7121dba2e53eb2"}, + {file = "aiofiles-23.1.0.tar.gz", hash = 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a/src/chat/__init__.py b/src/chat/__init__.py new file mode 100644 index 0000000..8257ae4 --- /dev/null +++ b/src/chat/__init__.py @@ -0,0 +1,50 @@ +import asyncio +from quart import Quart, websocket, render_template, jsonify + +from chat.broker import Broker +from chat.models import Message + + +app = Quart(__name__) +broker = Broker() + + +def run() -> None: + app.run() + + +# @app.get('/') +# async def index(): +# return await render_template("index.html") + + +@app.get('/replay') +async def replay(): + data = list() + messages = Message.select().order_by(Message.datestamp.asc()).limit(100) + for m in messages: + data.append({ + 'message': m.message, + 'datestamp': m.datestamp + }) + return jsonify(data) + + +@app.websocket('/ws') +async def ws() -> None: + try: + task = asyncio.ensure_future(_receive()) + async for message in broker.subscribe(): + await websocket.send(message) + finally: + task.cancel() + await task + + +async def _receive() -> None: + while True: + message = await websocket.receive() + if len(message) > 120: + print('too long, skipping') + break + await broker.publish(message) \ No newline at end of file diff --git a/src/chat/broker.py b/src/chat/broker.py new file mode 100644 index 0000000..9aea235 --- /dev/null +++ b/src/chat/broker.py @@ -0,0 +1,22 @@ +import asyncio +from typing import AsyncGenerator + +from chat.models import Message + +class Broker: + def __init__(self) -> None: + self.connections = set() + + async def publish(self, message: str, store=True) -> None: + for connection in self.connections: + Message(message=message).save() + await connection.put(message) + + async def subscribe(self) -> AsyncGenerator[str, None]: + connection = asyncio.Queue() + self.connections.add(connection) + try: + while True: + yield await connection.get() + finally: + self.connections.remove(connection) diff --git a/src/chat/models.py b/src/chat/models.py new file mode 100644 index 0000000..f6d6e34 --- /dev/null +++ b/src/chat/models.py @@ -0,0 +1,18 @@ +from datetime import datetime + +from peewee import * +from playhouse.sqliteq import SqliteQueueDatabase + + +db = SqliteQueueDatabase('chat.db') + + +class Message(Model): + message = CharField() + datestamp = DateTimeField(default=datetime.utcnow) + + class Meta: + database = db + + +db.create_tables([Message]) \ No newline at end of file diff --git a/src/chat/templates/index.html b/src/chat/templates/index.html new file mode 100644 index 0000000..c7cde54 --- /dev/null +++ b/src/chat/templates/index.html @@ -0,0 +1,39 @@ + + +
+
    +
    + + +
    +