192 lines
5.7 KiB
Python
192 lines
5.7 KiB
Python
import aputils
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import asyncio
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import logging
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import subprocess
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import traceback
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from pathlib import Path
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from . import __version__, misc
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from .misc import DotDict, Message, Response
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from .processors import run_processor
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routes = []
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version = __version__
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if Path(__file__).parent.parent.joinpath('.git').exists():
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try:
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commit_label = subprocess.check_output(["git", "rev-parse", "HEAD"]).strip().decode('ascii')
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version = f'{__version__} {commit_label}'
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except:
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pass
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def register_route(method, path):
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def wrapper(func):
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routes.append([method, path, func])
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return func
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return wrapper
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@register_route('GET', '/')
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async def home(request):
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targets = '<br>'.join(request.database.hostnames)
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note = request.config.note
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count = len(request.database.hostnames)
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host = request.config.host
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text = f"""
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<html><head>
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<title>ActivityPub Relay at {host}</title>
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<style>
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p {{ color: #FFFFFF; font-family: monospace, arial; font-size: 100%; }}
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body {{ background-color: #000000; }}
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a {{ color: #26F; }}
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a:visited {{ color: #46C; }}
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a:hover {{ color: #8AF; }}
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</style>
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</head>
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<body>
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<p>This is an Activity Relay for fediverse instances.</p>
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<p>{note}</p>
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<p>You may subscribe to this relay with the address: <a href="https://{host}/actor">https://{host}/actor</a></p>
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<p>To host your own relay, you may download the code at this address: <a href="https://git.pleroma.social/pleroma/relay">https://git.pleroma.social/pleroma/relay</a></p>
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<br><p>List of {count} registered instances:<br>{targets}</p>
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</body></html>"""
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return Response.new(text, ctype='html')
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@register_route('GET', '/inbox')
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@register_route('GET', '/actor')
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async def actor(request):
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data = Message.new_actor(
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host = request.config.host,
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pubkey = request.database.signer.pubkey
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)
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return Response.new(data, ctype='activity')
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@register_route('POST', '/inbox')
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@register_route('POST', '/actor')
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async def inbox(request):
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config = request.config
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database = request.database
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## reject if missing signature header
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if not request.signature:
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logging.verbose('Actor missing signature header')
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raise HTTPUnauthorized(body='missing signature')
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try:
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request['message'] = await request.json(loads=Message.new_from_json)
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## reject if there is no message
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if not request.message:
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logging.verbose('empty message')
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return Response.new_error(400, 'missing message', 'json')
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## reject if there is no actor in the message
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if 'actor' not in request.message:
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logging.verbose('actor not in message')
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return Response.new_error(400, 'no actor in message', 'json')
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except:
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## this code should hopefully never get called
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traceback.print_exc()
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logging.verbose('Failed to parse inbox message')
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return Response.new_error(400, 'failed to parse message', 'json')
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request['actor'] = await request.app.client.get(request.signature.keyid, sign_headers=True)
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## reject if actor is empty
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if not request.actor:
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## ld signatures aren't handled atm, so just ignore it
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if request['message'].type == 'Delete':
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logging.verbose(f'Instance sent a delete which cannot be handled')
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return Response.new(status=202)
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logging.verbose(f'Failed to fetch actor: {request.signature.keyid}')
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return Response.new_error(400, 'failed to fetch actor', 'json')
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request['instance'] = request.database.get_inbox(request['actor'].inbox)
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## reject if the actor isn't whitelisted while the whiltelist is enabled
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if config.whitelist_enabled and not config.is_whitelisted(request.actor.domain):
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logging.verbose(f'Rejected actor for not being in the whitelist: {request.actor.id}')
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return Response.new_error(403, 'access denied', 'json')
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## reject if actor is banned
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if request.config.is_banned(request.actor.domain):
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logging.verbose(f'Ignored request from banned actor: {actor.id}')
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return Response.new_error(403, 'access denied', 'json')
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## reject if the signature is invalid
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try:
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await request.actor.signer.validate_aiohttp_request(request)
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except aputils.SignatureValidationError as e:
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logging.verbose(f'signature validation failed for: {actor.id}')
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logging.debug(str(e))
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return Response.new_error(401, str(e), 'json')
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## reject if activity type isn't 'Follow' and the actor isn't following
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if request.message.type != 'Follow' and not database.get_inbox(request.actor.domain):
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logging.verbose(f'Rejected actor for trying to post while not following: {request.actor.id}')
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return Response.new_error(401, 'access denied', 'json')
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logging.debug(f">> payload {request.message.to_json(4)}")
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asyncio.ensure_future(run_processor(request))
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return Response.new(status=202)
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@register_route('GET', '/.well-known/webfinger')
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async def webfinger(request):
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try:
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subject = request.query['resource']
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except KeyError:
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return Response.new_error(400, 'missing \'resource\' query key', 'json')
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if subject != f'acct:relay@{request.config.host}':
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return Response.new_error(404, 'user not found', 'json')
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data = aputils.Webfinger.new(
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handle = 'relay',
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domain = request.config.host,
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actor = request.config.actor
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)
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return Response.new(data, ctype='json')
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@register_route('GET', '/nodeinfo/{version:\d.\d\.json}')
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async def nodeinfo(request):
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niversion = request.match_info['version'][:3]
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data = dict(
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name = 'activityrelay',
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version = version,
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protocols = ['activitypub'],
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open_regs = not request.config.whitelist_enabled,
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users = 1,
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metadata = {'peers': request.database.hostnames}
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)
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if niversion == '2.1':
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data['repo'] = 'https://git.pleroma.social/pleroma/relay'
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return Response.new(aputils.Nodeinfo.new(**data), ctype='json')
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@register_route('GET', '/.well-known/nodeinfo')
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async def nodeinfo_wellknown(request):
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data = aputils.WellKnownNodeinfo.new_template(request.config.host)
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return Response.new(data, ctype='json')
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