"""Credential request message handler."""
from .....messaging.base_handler import (
BaseHandler,
BaseResponder,
HandlerException,
RequestContext,
)
from ..manager import V20CredManager
from ..messages.cred_proposal import V20CredProposal
from ..messages.cred_request import V20CredRequest
from .....utils.tracing import trace_event, get_timer
[docs]class V20CredRequestHandler(BaseHandler):
"""Message handler class for credential requests."""
[docs] async def handle(self, context: RequestContext, responder: BaseResponder):
"""
Message handler logic for credential requests.
Args:
context: request context
responder: responder callback
"""
r_time = get_timer()
self._logger.debug("V20CredRequestHandler called with context %s", context)
assert isinstance(context.message, V20CredRequest)
self._logger.info(
"Received v2.0 credential request message: %s",
context.message.serialize(as_string=True),
)
if not context.connection_ready:
raise HandlerException("No connection established for credential request")
cred_manager = V20CredManager(context.profile)
cred_ex_record = await cred_manager.receive_request(
context.message, context.connection_record.connection_id
)
r_time = trace_event(
context.settings,
context.message,
outcome="V20CredRequestHandler.handle.END",
perf_counter=r_time,
)
# If auto_issue is enabled, respond immediately
if cred_ex_record.auto_issue:
if (
cred_ex_record.cred_proposal
and V20CredProposal.deserialize(
cred_ex_record.cred_proposal
).credential_preview
):
(
cred_ex_record,
cred_issue_message,
) = await cred_manager.issue_credential(
cred_ex_record=cred_ex_record, comment=context.message.comment
)
await responder.send_reply(cred_issue_message)
trace_event(
context.settings,
cred_issue_message,
outcome="V20CredRequestHandler.issue.END",
perf_counter=r_time,
)
else:
self._logger.warning(
"Operation set for auto-issue but v2.0 credential exchange record "
f"{cred_ex_record.cred_ex_id} "
"has no attribute values"
)