"""Presentation proposal message handler."""
from .....messaging.base_handler import (
BaseHandler,
BaseResponder,
HandlerException,
RequestContext,
)
from ..manager import PresentationManager
from ..messages.presentation_proposal import PresentationProposal
from .....utils.tracing import trace_event, get_timer
[docs]class PresentationProposalHandler(BaseHandler):
"""Message handler class for presentation proposals."""
[docs] async def handle(self, context: RequestContext, responder: BaseResponder):
"""
Message handler logic for presentation proposals.
Args:
context: proposal context
responder: responder callback
"""
r_time = get_timer()
self._logger.debug(
"PresentationProposalHandler called with context %s", context
)
assert isinstance(context.message, PresentationProposal)
self._logger.info(
"Received presentation proposal message: %s",
context.message.serialize(as_string=True),
)
if not context.connection_ready:
raise HandlerException(
"No connection established for presentation proposal"
)
presentation_manager = PresentationManager(context)
presentation_exchange_record = await presentation_manager.receive_proposal()
r_time = trace_event(
context.settings,
context.message,
outcome="PresentationProposalHandler.handle.END",
perf_counter=r_time,
)
# If auto_respond_presentation_proposal is set, reply with proof req
if context.settings.get("debug.auto_respond_presentation_proposal"):
(
presentation_exchange_record,
presentation_request_message,
) = await presentation_manager.create_bound_request(
presentation_exchange_record=presentation_exchange_record,
comment=context.message.comment,
)
await responder.send_reply(presentation_request_message)
trace_event(
context.settings,
presentation_request_message,
outcome="PresentationProposalHandler.handle.PRESENT",
perf_counter=r_time,
)