edavis.dev
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bsky-activity: move firehose handler into bsky-activity.py
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bsky-activity.py
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bsky-activity.py
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#!/usr/bin/env python3
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import asyncio
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from datetime import datetime, timezone
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from io import BytesIO
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import os
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import redis
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import sqlite3
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import sys
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from datetime import datetime, timezone
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from firehose_utils import bsky_activity
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from atproto import CAR
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import redis
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import dag_cbor
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import websockets
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app_bsky_allowlist = set([
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'app.bsky.actor.profile',
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'app.bsky.graph.listitem',
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'app.bsky.labeler.service',
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])
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async def bsky_activity():
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redis_cnx = redis.Redis()
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relay_url = 'wss://bsky.network/xrpc/com.atproto.sync.subscribeRepos'
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firehose_seq = redis_cnx.get('dev.edavis.muninsky.seq')
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if firehose_seq:
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relay_url += f'?cursor={firehose_seq.decode()}'
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sys.stdout.write(f'opening websocket connection to {relay_url}\n')
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sys.stdout.flush()
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async with websockets.connect(relay_url, ping_timeout=None) as firehose:
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while True:
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frame = BytesIO(await firehose.recv())
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header = dag_cbor.decode(frame, allow_concat=True)
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if header['op'] != 1 or header['t'] != '#commit':
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continue
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payload = dag_cbor.decode(frame)
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if payload['tooBig']:
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# TODO(ejd): figure out how to get blocks out-of-band
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continue
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# TODO(ejd): figure out how to validate blocks
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blocks = payload.pop('blocks')
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car_parsed = CAR.from_bytes(blocks)
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message = payload.copy()
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del message['ops']
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message['commit'] = message['commit'].encode('base32')
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for commit_op in payload['ops']:
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op = commit_op.copy()
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if op['cid'] is not None:
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op['cid'] = op['cid'].encode('base32')
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op['record'] = car_parsed.blocks.get(op['cid'])
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yield message, op
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async def main():
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redis_cnx = redis.Redis()
-45
firehose_utils.py
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firehose_utils.py
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import apsw
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import dag_cbor
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import redis
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import sys
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import websockets
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from atproto import CAR
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from io import BytesIO
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async def bsky_activity():
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redis_cnx = redis.Redis()
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relay_url = 'wss://bsky.network/xrpc/com.atproto.sync.subscribeRepos'
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firehose_seq = redis_cnx.get('dev.edavis.muninsky.seq')
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if firehose_seq:
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relay_url += f'?cursor={firehose_seq.decode()}'
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sys.stdout.write(f'opening websocket connection to {relay_url}\n')
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sys.stdout.flush()
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async with websockets.connect(relay_url, ping_timeout=None) as firehose:
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while True:
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frame = BytesIO(await firehose.recv())
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header = dag_cbor.decode(frame, allow_concat=True)
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if header['op'] != 1 or header['t'] != '#commit':
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continue
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payload = dag_cbor.decode(frame)
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if payload['tooBig']:
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# TODO(ejd): figure out how to get blocks out-of-band
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continue
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# TODO(ejd): figure out how to validate blocks
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blocks = payload.pop('blocks')
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car_parsed = CAR.from_bytes(blocks)
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message = payload.copy()
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del message['ops']
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message['commit'] = message['commit'].encode('base32')
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for commit_op in payload['ops']:
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op = commit_op.copy()
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if op['cid'] is not None:
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op['cid'] = op['cid'].encode('base32')
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op['record'] = car_parsed.blocks.get(op['cid'])
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yield message, op