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fix rst issues

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pull/4/merge
Matthew Hodgson 11 years ago
parent ba92c6f301
commit f956646955
2 changed files with 0 additions and 534 deletions
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  1. 154
      example/cursesio.py
  2. 380
      example/test_messaging.py

154
example/cursesio.py
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import curses
import curses.wrapper
from curses.ascii import isprint
from twisted.internet import reactor
class CursesStdIO():
def __init__(self, stdscr, callback=None):
self.statusText = "Synapse test app -"
self.searchText = ''
self.stdscr = stdscr
self.logLine = ''
self.callback = callback
self._setup()
def _setup(self):
self.stdscr.nodelay(1) # Make non blocking
self.rows, self.cols = self.stdscr.getmaxyx()
self.lines = []
curses.use_default_colors()
self.paintStatus(self.statusText)
self.stdscr.refresh()
def set_callback(self, callback):
self.callback = callback
def fileno(self):
""" We want to select on FD 0 """
return 0
def connectionLost(self, reason):
self.close()
def print_line(self, text):
""" add a line to the internal list of lines"""
self.lines.append(text)
self.redraw()
def print_log(self, text):
self.logLine = text
self.redraw()
def redraw(self):
""" method for redisplaying lines
based on internal list of lines """
self.stdscr.clear()
self.paintStatus(self.statusText)
i = 0
index = len(self.lines) - 1
while i < (self.rows - 3) and index >= 0:
self.stdscr.addstr(self.rows - 3 - i, 0, self.lines[index],
curses.A_NORMAL)
i = i + 1
index = index - 1
self.printLogLine(self.logLine)
self.stdscr.refresh()
def paintStatus(self, text):
if len(text) > self.cols:
raise RuntimeError("TextTooLongError")
self.stdscr.addstr(
self.rows - 2, 0,
text + ' ' * (self.cols - len(text)),
curses.A_STANDOUT)
def printLogLine(self, text):
self.stdscr.addstr(
0, 0,
text + ' ' * (self.cols - len(text)),
curses.A_STANDOUT)
def doRead(self):
""" Input is ready! """
curses.noecho()
c = self.stdscr.getch() # read a character
if c == curses.KEY_BACKSPACE:
self.searchText = self.searchText[:-1]
elif c == curses.KEY_ENTER or c == 10:
text = self.searchText
self.searchText = ''
self.print_line(">> %s" % text)
try:
if self.callback:
self.callback.on_line(text)
except Exception as e:
self.print_line(str(e))
self.stdscr.refresh()
elif isprint(c):
if len(self.searchText) == self.cols - 2:
return
self.searchText = self.searchText + chr(c)
self.stdscr.addstr(self.rows - 1, 0,
self.searchText + (' ' * (
self.cols - len(self.searchText) - 2)))
self.paintStatus(self.statusText + ' %d' % len(self.searchText))
self.stdscr.move(self.rows - 1, len(self.searchText))
self.stdscr.refresh()
def logPrefix(self):
return "CursesStdIO"
def close(self):
""" clean up """
curses.nocbreak()
self.stdscr.keypad(0)
curses.echo()
curses.endwin()
class Callback(object):
def __init__(self, stdio):
self.stdio = stdio
def on_line(self, text):
self.stdio.print_line(text)
def main(stdscr):
screen = CursesStdIO(stdscr) # create Screen object
callback = Callback(screen)
screen.set_callback(callback)
stdscr.refresh()
reactor.addReader(screen)
reactor.run()
screen.close()
if __name__ == '__main__':
curses.wrapper(main)

380
example/test_messaging.py
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# -*- coding: utf-8 -*-
""" This is an example of using the server to server implementation to do a
basic chat style thing. It accepts commands from stdin and outputs to stdout.
It assumes that ucids are of the form <user>@<domain>, and uses <domain> as
the address of the remote home server to hit.
Usage:
python test_messaging.py <port>
Currently assumes the local address is localhost:<port>
"""
from synapse.federation import (
ReplicationHandler
)
from synapse.federation.units import Pdu
from synapse.util import origin_from_ucid
from synapse.app.homeserver import SynapseHomeServer
#from synapse.util.logutils import log_function
from twisted.internet import reactor, defer
from twisted.python import log
import argparse
import json
import logging
import os
import re
import cursesio
import curses.wrapper
logger = logging.getLogger("example")
def excpetion_errback(failure):
logging.exception(failure)
class InputOutput(object):
""" This is responsible for basic I/O so that a user can interact with
the example app.
"""
def __init__(self, screen, user):
self.screen = screen
self.user = user
def set_home_server(self, server):
self.server = server
def on_line(self, line):
""" This is where we process commands.
"""
try:
m = re.match("^join (\S+)$", line)
if m:
# The `sender` wants to join a room.
room_name, = m.groups()
self.print_line("%s joining %s" % (self.user, room_name))
self.server.join_room(room_name, self.user, self.user)
#self.print_line("OK.")
return
m = re.match("^invite (\S+) (\S+)$", line)
if m:
# `sender` wants to invite someone to a room
room_name, invitee = m.groups()
self.print_line("%s invited to %s" % (invitee, room_name))
self.server.invite_to_room(room_name, self.user, invitee)
#self.print_line("OK.")
return
m = re.match("^send (\S+) (.*)$", line)
if m:
# `sender` wants to message a room
room_name, body = m.groups()
self.print_line("%s send to %s" % (self.user, room_name))
self.server.send_message(room_name, self.user, body)
#self.print_line("OK.")
return
m = re.match("^paginate (\S+)$", line)
if m:
# we want to paginate a room
room_name, = m.groups()
self.print_line("paginate %s" % room_name)
self.server.paginate(room_name)
return
self.print_line("Unrecognized command")
except Exception as e:
logger.exception(e)
def print_line(self, text):
self.screen.print_line(text)
def print_log(self, text):
self.screen.print_log(text)
class IOLoggerHandler(logging.Handler):
def __init__(self, io):
logging.Handler.__init__(self)
self.io = io
def emit(self, record):
if record.levelno < logging.WARN:
return
msg = self.format(record)
self.io.print_log(msg)
class Room(object):
""" Used to store (in memory) the current membership state of a room, and
which home servers we should send PDUs associated with the room to.
"""
def __init__(self, room_name):
self.room_name = room_name
self.invited = set()
self.participants = set()
self.servers = set()
self.oldest_server = None
self.have_got_metadata = False
def add_participant(self, participant):
""" Someone has joined the room
"""
self.participants.add(participant)
self.invited.discard(participant)
server = origin_from_ucid(participant)
self.servers.add(server)
if not self.oldest_server:
self.oldest_server = server
def add_invited(self, invitee):
""" Someone has been invited to the room
"""
self.invited.add(invitee)
self.servers.add(origin_from_ucid(invitee))
class HomeServer(ReplicationHandler):
""" A very basic home server implentation that allows people to join a
room and then invite other people.
"""
def __init__(self, server_name, replication_layer, output):
self.server_name = server_name
self.replication_layer = replication_layer
self.replication_layer.set_handler(self)
self.joined_rooms = {}
self.output = output
def on_receive_pdu(self, pdu):
""" We just received a PDU
"""
pdu_type = pdu.pdu_type
if pdu_type == "sy.room.message":
self._on_message(pdu)
elif pdu_type == "sy.room.member" and "membership" in pdu.content:
if pdu.content["membership"] == "join":
self._on_join(pdu.context, pdu.state_key)
elif pdu.content["membership"] == "invite":
self._on_invite(pdu.origin, pdu.context, pdu.state_key)
else:
self.output.print_line("#%s (unrec) %s = %s" %
(pdu.context, pdu.pdu_type, json.dumps(pdu.content))
)
#def on_state_change(self, pdu):
##self.output.print_line("#%s (state) %s *** %s" %
##(pdu.context, pdu.state_key, pdu.pdu_type)
##)
#if "joinee" in pdu.content:
#self._on_join(pdu.context, pdu.content["joinee"])
#elif "invitee" in pdu.content:
#self._on_invite(pdu.origin, pdu.context, pdu.content["invitee"])
def _on_message(self, pdu):
""" We received a message
"""
self.output.print_line("#%s %s %s" %
(pdu.context, pdu.content["sender"], pdu.content["body"])
)
def _on_join(self, context, joinee):
""" Someone has joined a room, either a remote user or a local user
"""
room = self._get_or_create_room(context)
room.add_participant(joinee)
self.output.print_line("#%s %s %s" %
(context, joinee, "*** JOINED")
)
def _on_invite(self, origin, context, invitee):
""" Someone has been invited
"""
room = self._get_or_create_room(context)
room.add_invited(invitee)
self.output.print_line("#%s %s %s" %
(context, invitee, "*** INVITED")
)
if not room.have_got_metadata and origin is not self.server_name:
logger.debug("Get room state")
self.replication_layer.get_state_for_context(origin, context)
room.have_got_metadata = True
@defer.inlineCallbacks
def send_message(self, room_name, sender, body):
""" Send a message to a room!
"""
destinations = yield self.get_servers_for_context(room_name)
try:
yield self.replication_layer.send_pdu(
Pdu.create_new(
context=room_name,
pdu_type="sy.room.message",
content={"sender": sender, "body": body},
origin=self.server_name,
destinations=destinations,
)
)
except Exception as e:
logger.exception(e)
@defer.inlineCallbacks
def join_room(self, room_name, sender, joinee):
""" Join a room!
"""
self._on_join(room_name, joinee)
destinations = yield self.get_servers_for_context(room_name)
try:
pdu = Pdu.create_new(
context=room_name,
pdu_type="sy.room.member",
is_state=True,
state_key=joinee,
content={"membership": "join"},
origin=self.server_name,
destinations=destinations,
)
yield self.replication_layer.send_pdu(pdu)
except Exception as e:
logger.exception(e)
@defer.inlineCallbacks
def invite_to_room(self, room_name, sender, invitee):
""" Invite someone to a room!
"""
self._on_invite(self.server_name, room_name, invitee)
destinations = yield self.get_servers_for_context(room_name)
try:
yield self.replication_layer.send_pdu(
Pdu.create_new(
context=room_name,
is_state=True,
pdu_type="sy.room.member",
state_key=invitee,
content={"membership": "invite"},
origin=self.server_name,
destinations=destinations,
)
)
except Exception as e:
logger.exception(e)
def paginate(self, room_name, limit=5):
room = self.joined_rooms.get(room_name)
if not room:
return
dest = room.oldest_server
return self.replication_layer.paginate(dest, room_name, limit)
def _get_room_remote_servers(self, room_name):
return [i for i in self.joined_rooms.setdefault(room_name,).servers]
def _get_or_create_room(self, room_name):
return self.joined_rooms.setdefault(room_name, Room(room_name))
def get_servers_for_context(self, context):
return defer.succeed(
self.joined_rooms.setdefault(context, Room(context)).servers
)
def main(stdscr):
parser = argparse.ArgumentParser()
parser.add_argument('user', type=str)
parser.add_argument('-v', '--verbose', action='count')
args = parser.parse_args()
user = args.user
server_name = origin_from_ucid(user)
## Set up logging ##
root_logger = logging.getLogger()
formatter = logging.Formatter('%(asctime)s - %(name)s - %(lineno)d - '
'%(levelname)s - %(message)s')
if not os.path.exists("logs"):
os.makedirs("logs")
fh = logging.FileHandler("logs/%s" % user)
fh.setFormatter(formatter)
root_logger.addHandler(fh)
root_logger.setLevel(logging.DEBUG)
# Hack: The only way to get it to stop logging to sys.stderr :(
log.theLogPublisher.observers = []
observer = log.PythonLoggingObserver()
observer.start()
## Set up synapse server
curses_stdio = cursesio.CursesStdIO(stdscr)
input_output = InputOutput(curses_stdio, user)
curses_stdio.set_callback(input_output)
app_hs = SynapseHomeServer(server_name, db_name="dbs/%s" % user)
replication = app_hs.get_replication_layer()
hs = HomeServer(server_name, replication, curses_stdio)
input_output.set_home_server(hs)
## Add input_output logger
io_logger = IOLoggerHandler(input_output)
io_logger.setFormatter(formatter)
root_logger.addHandler(io_logger)
## Start! ##
try:
port = int(server_name.split(":")[1])
except:
port = 12345
app_hs.get_http_server().start_listening(port)
reactor.addReader(curses_stdio)
reactor.run()
if __name__ == "__main__":
curses.wrapper(main)
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