matrix.py 1.6 KB
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import os
import json

from amonit import util
from matrix_client import client as matrix_client
from matrix_client import room as matrix_room


def send_then_receive(context, account_from, account_to, roomid):
    """ Send a message using Matrix, then check that it is received.
    This is useful either on a single server or across homeservers to
    check that federation work properly.

    The canary is first sent, then looked for in the next execution.
    """
    result = {"up": False, "message": ""}
    if "canary" in context:
        canary = context["canary"]
        try:
            client_from = matrix_client.MatrixHttpApi(
                account_from["hs"], token=account_from["token"]
            )
            filter = json.dumps(
                {"room":{"rooms":[roomid]}})
            if "next_batch" in context:
                since = context["next_batch"]
                sync = client_from.sync(since=since, filter=filter)
            else:
                sync = client_from.sync(filter=filter)
            result["next_batch"] = sync["next_batch"]
            events = sync["rooms"]["join"][roomid]["timeline"]["events"]
            for event in events:
                if event["content"].get("body", "") == canary:
                    result["up"] = True
        except Exception as error:
            result = {"up": False, "message": str(error)}
    # Then drop a new canary
    canary = os.urandom(8).hex()
    client_to = matrix_client.MatrixHttpApi(
        account_to["hs"], token=account_to["token"]
    )
    client_to.send_message(roomid, canary)
    result["canary"] = canary
    return result