feat: (WIP) add DCV2 protocol registry

Signed-off-by: Micah Peltier <[email protected]>

Author: mepeltier

acapy_agent/didcomm_v2/protocol_registry.py

@@ -0,0 +1,35 @@
+"""Registry for DIDComm V2 Protocols."""
+
+from typing import Coroutine, Dict, Sequence
+
+
+class V2ProtocolRegistry:
+    """DIDComm V2 Protocols."""
+
+    def __init__(self):
+        """Initialize a V2ProtocolRegistry instance."""
+        self._type_to_message_handler: Dict[str, Coroutine] = {}
+
+    @property
+    def protocols(self) -> Sequence[str]:
+        """Accessor for a list of all message protocols."""
+        return [str(key) for key in self._type_to_message_handler.keys()]
+
+    def protocols_matching_query(self, query: str) -> Sequence[str]:
+        """Return a list of message protocols matching a query string."""
+        all_types = self.protocols
+        result = None
+
+        if query == "*" or query is None:
+            result = all_types
+        elif query:
+            if query.endswith("*"):
+                match = query[:-1]
+                result = tuple(k for k in all_types if k.startswith(match))
+            elif query in all_types:
+                result = (query,)
+        return result or ()
+
+    def register_handler(self, message_type: str, handler: Coroutine):
+        """Register a new message type to handler association."""
+        self._type_to_message_handler[message_type] = handler

acapy_agent/didcomm_v2/protocols/trust_ping.py

@@ -0,0 +1,8 @@
+"""Handler for the trust ping protocol."""
+
+from acapy_agent.transport.inbound.message import InboundMessage
+
+
+async def handle_trust_ping(message: InboundMessage):
+    """."""
+    return False