Additional constants for EDU types. (#12884)

Instead of hard-coding strings in many places.

2 files changed, 9 insertions, 4 deletions

diff --git a/synapse/federation/sender/per_destination_queue.py b/synapse/federation/sender/per_destination_queue.py

index 8983b5a53d..333ca9a97f 100644
--- a/synapse/federation/sender/per_destination_queue.py
+++ b/synapse/federation/sender/per_destination_queue.py
@@ -21,6 +21,7 @@ from typing import TYPE_CHECKING, Dict, Hashable, Iterable, List, Optional, Tupl
 import attr
 from prometheus_client import Counter
 
+from synapse.api.constants import EduTypes
 from synapse.api.errors import (
     FederationDeniedError,
     HttpResponseException,
@@ -542,7 +543,7 @@ class PerDestinationQueue:
         edu = Edu(
             origin=self._server_name,
             destination=self._destination,
-            edu_type="m.receipt",
+            edu_type=EduTypes.RECEIPT,
             content=self._pending_rrs,
         )
         self._pending_rrs = {}
@@ -592,7 +593,7 @@ class PerDestinationQueue:
             Edu(
                 origin=self._server_name,
                 destination=self._destination,
-                edu_type="m.direct_to_device",
+                edu_type=EduTypes.DIRECT_TO_DEVICE,
                 content=content,
             )
             for content in contents
@@ -670,7 +671,7 @@ class _TransactionQueueManager:
                 Edu(
                     origin=self.queue._server_name,
                     destination=self.queue._destination,
-                    edu_type="m.presence",
+                    edu_type=EduTypes.PRESENCE,
                     content={
                         "push": [
                             format_user_presence_state(
diff --git a/synapse/federation/sender/transaction_manager.py b/synapse/federation/sender/transaction_manager.py

index 0c1cad86ab..75081810fd 100644
--- a/synapse/federation/sender/transaction_manager.py
+++ b/synapse/federation/sender/transaction_manager.py
@@ -16,6 +16,7 @@ from typing import TYPE_CHECKING, List
 
 from prometheus_client import Gauge
 
+from synapse.api.constants import EduTypes
 from synapse.api.errors import HttpResponseException
 from synapse.events import EventBase
 from synapse.federation.persistence import TransactionActions
@@ -126,7 +127,10 @@ class TransactionManager:
                 len(edus),
             )
             if issue_8631_logger.isEnabledFor(logging.DEBUG):
-                DEVICE_UPDATE_EDUS = {"m.device_list_update", "m.signing_key_update"}
+                DEVICE_UPDATE_EDUS = {
+                    EduTypes.DEVICE_LIST_UPDATE,
+                    EduTypes.SIGNING_KEY_UPDATE,
+                }
                 device_list_updates = [
                     edu.content for edu in edus if edu.edu_type in DEVICE_UPDATE_EDUS
                 ]