"""Presentation ack message handler."""
from .....core.oob_processor import OobMessageProcessor
from .....messaging.base_handler import BaseHandler, HandlerException
from .....messaging.request_context import RequestContext
from .....messaging.responder import BaseResponder
from .....utils.tracing import trace_event, get_timer
from ..manager import V20PresManager
from ..messages.pres_ack import V20PresAck
[docs]class V20PresAckHandler(BaseHandler):
"""Message handler class for presentation acks."""
[docs] async def handle(self, context: RequestContext, responder: BaseResponder):
"""
Message handler logic for presentation acks.
Args:
context: request context
responder: responder callback
"""
r_time = get_timer()
self._logger.debug("V20PresAckHandler called with context %s", context)
assert isinstance(context.message, V20PresAck)
self._logger.info(
"Received v2.0 presentation ack message: %s",
context.message.serialize(as_string=True),
)
# If connection is present it must be ready for use
if context.connection_record and not context.connection_ready:
raise HandlerException("Connection used for presentation ack not ready")
# Find associated oob record
oob_processor = context.inject(OobMessageProcessor)
oob_record = await oob_processor.find_oob_record_for_inbound_message(context)
# Either connection or oob context must be present
if not context.connection_record and not oob_record:
raise HandlerException(
"No connection or associated connectionless exchange found for"
" presentation ack"
)
pres_manager = V20PresManager(context.profile)
await pres_manager.receive_pres_ack(context.message, context.connection_record)
trace_event(
context.settings,
context.message,
outcome="V20PresAckHandler.handle.END",
perf_counter=r_time,
)