Mercurial > libervia-backend
view sat_frontends/jp/cmd_pipe.py @ 3728:b15644cae50d
component AP gateway: JID/node ⟺ AP outbox conversion:
- convert a combination of JID and optional pubsub node to AP actor handle (see
`getJIDAndNode` for details) and vice versa
- the gateway now provides a Pubsub service
- retrieve pubsub node and convert it to AP collection, AP pagination is converted to RSM
- do the opposite: convert AP collection to pubsub and handle RSM request. Due to
ActivityStream collection pagination limitations, some RSM request produce inefficient
requests, but caching should be used most of the time in the future and avoid the
problem.
- set specific name to HTTP Server
- new `local_only` setting (`True` by default) to indicate if the gateway can request or
not XMPP Pubsub nodes from other servers
- disco info now specifies important features such as Pubsub RSM, and nodes metadata
ticket 363
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 25 Jan 2022 17:54:06 +0100 |
parents | be6d91572633 |
children | 524856bd7b19 |
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#!/usr/bin/env python3 # jp: a SAT command line tool # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import socket import asyncio import errno from functools import partial from sat_frontends.jp import base from sat_frontends.jp.constants import Const as C from sat_frontends.jp import xmlui_manager import sys from sat.core.i18n import _ from sat_frontends.tools import jid __commands__ = ["Pipe"] START_PORT = 9999 class PipeOut(base.CommandBase): def __init__(self, host): super(PipeOut, self).__init__(host, "out", help=_("send a pipe a stream")) def add_parser_options(self): self.parser.add_argument( "jid", help=_("the destination jid") ) async def start(self): """ Create named pipe, and send stdin to it """ try: port = await self.host.bridge.streamOut( await self.host.get_full_jid(self.args.jid), self.profile, ) except Exception as e: self.disp(f"can't start stream: {e}", error=True) self.host.quit(C.EXIT_BRIDGE_ERRBACK) else: # FIXME: we use temporarily blocking code here, as it simplify # asyncio port: "loop.connect_read_pipe(lambda: reader_protocol, # sys.stdin.buffer)" doesn't work properly when a file is piped in # (we get a "ValueError: Pipe transport is for pipes/sockets only.") # while it's working well for simple text sending. s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect(("127.0.0.1", int(port))) while True: buf = sys.stdin.buffer.read(4096) if not buf: break try: s.sendall(buf) except socket.error as e: if e.errno == errno.EPIPE: sys.stderr.write(f"e\n") self.host.quit(1) else: raise e self.host.quit() async def handle_stream_in(reader, writer, host): """Write all received data to stdout""" while True: data = await reader.read(4096) if not data: break sys.stdout.buffer.write(data) try: sys.stdout.flush() except IOError as e: sys.stderr.write(f"{e}\n") break host.quitFromSignal() class PipeIn(base.CommandAnswering): def __init__(self, host): super(PipeIn, self).__init__(host, "in", help=_("receive a pipe stream")) self.action_callbacks = {"STREAM": self.onStreamAction} def add_parser_options(self): self.parser.add_argument( "jids", nargs="*", help=_('Jids accepted (none means "accept everything")'), ) def getXmluiId(self, action_data): try: xml_ui = action_data["xmlui"] except KeyError: self.disp(_("Action has no XMLUI"), 1) else: ui = xmlui_manager.create(self.host, xml_ui) if not ui.submit_id: self.disp(_("Invalid XMLUI received"), error=True) self.quitFromSignal(C.EXIT_INTERNAL_ERROR) return ui.submit_id async def onStreamAction(self, action_data, action_id, security_limit, profile): xmlui_id = self.getXmluiId(action_data) if xmlui_id is None: self.host.quitFromSignal(C.EXIT_ERROR) try: from_jid = jid.JID(action_data["meta_from_jid"]) except KeyError: self.disp(_("Ignoring action without from_jid data"), error=True) return if not self.bare_jids or from_jid.bare in self.bare_jids: host, port = "localhost", START_PORT while True: try: server = await asyncio.start_server( partial(handle_stream_in, host=self.host), host, port) except socket.error as e: if e.errno == errno.EADDRINUSE: port += 1 else: raise e else: break xmlui_data = {"answer": C.BOOL_TRUE, "port": str(port)} await self.host.bridge.launchAction( xmlui_id, xmlui_data, profile_key=profile) async with server: await server.serve_forever() self.host.quitFromSignal() async def start(self): self.bare_jids = [jid.JID(jid_).bare for jid_ in self.args.jids] await self.start_answering() class Pipe(base.CommandBase): subcommands = (PipeOut, PipeIn) def __init__(self, host): super(Pipe, self).__init__( host, "pipe", use_profile=False, help=_("stream piping through XMPP") )