feat: allow prefix when sending exn message (#307)

src/keria/peer/exchanging.py

@@ -34,7 +34,7 @@ def on_post(req, rep, name):
         Args:
             req (Request): falcon HTTP request object
             rep (Response): falcon HTTP response object
-            name (str): human readable alias for AID context
+            name (str): human readable name or prefix for AID context
         ---
         summary: Post an exchange message for an identifier.
         description: This endpoint posts an exchange message to a specific named identifier.
@@ -85,9 +85,9 @@ def on_post(req, rep, name):
         body = req.get_media()
 
         # Get the hab
-        hab = agent.hby.habByName(name)
+        hab = agent.hby.habs[name] if name in agent.hby.habs else agent.hby.habByName(name)
         if hab is None:
-            raise falcon.HTTPNotFound(description=f"alias={name} is not a valid reference to an identifier")
+            raise falcon.HTTPNotFound(description=f"{name} is not a valid reference to an identifier")
 
         # Get the exn, sigs, additional attachments and recipients  from the request
         ked = httping.getRequiredParam(body, "exn")

tests/peer/test_exchanging.py

@@ -79,7 +79,15 @@ def test_exchange_end(helpers):
         assert len(agent.exchanges) == 1
 
         doist.recur(deeds=deeds)
+        assert len(agent.exchanges) == 0
+
+        # Use prefix instead of alias to send again
+        res = client.simulate_post(path="/identifiers/EHgwVwQT15OJvilVvW57HE4w0-GPs_Stj2OFoAHZSysY/exchanges", json=body)
+        assert res.status_code == 202
+        assert res.json == cexn.ked
+        assert len(agent.exchanges) == 1
 
+        doist.recur(deeds=deeds)
         assert len(agent.exchanges) == 0
         agent.exnseeker.index(cexn.said)