Fix some spelling mistakes / typos. (#7811)

31 files changed, 41 insertions, 40 deletions

diff --git a/changelog.d/7811.misc b/changelog.d/7811.misc
new file mode 100644
index 0000000000..d907bba4df
--- /dev/null
+++ b/changelog.d/7811.misc
@@ -0,0 +1 @@
+Fix various spelling errors in comments and log lines.
diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index cb22508f4d..40dc62ef6c 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -537,7 +537,7 @@ class Auth(object):
         # Currently we ignore the `for_verification` flag even though there are
         # some situations where we can drop particular auth events when adding
         # to the event's `auth_events` (e.g. joins pointing to previous joins
-        # when room is publically joinable). Dropping event IDs has the
+        # when room is publicly joinable). Dropping event IDs has the
         # advantage that the auth chain for the room grows slower, but we use
         # the auth chain in state resolution v2 to order events, which means
         # care must be taken if dropping events to ensure that it doesn't
diff --git a/synapse/config/emailconfig.py b/synapse/config/emailconfig.py
index df08bcd1bc..b1dc7ad502 100644
--- a/synapse/config/emailconfig.py
+++ b/synapse/config/emailconfig.py
@@ -72,7 +72,7 @@ class EmailConfig(Config):
 
         template_dir = email_config.get("template_dir")
         # we need an absolute path, because we change directory after starting (and
-        # we don't yet know what auxilliary templates like mail.css we will need).
+        # we don't yet know what auxiliary templates like mail.css we will need).
         # (Note that loading as package_resources with jinja.PackageLoader doesn't
         # work for the same reason.)
         if not template_dir:
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 07d41ec03f..a37cc9cb4a 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -245,7 +245,7 @@ class FederationClient(FederationBase):
             event_id: event to fetch
             room_version: version of the room
             outlier: Indicates whether the PDU is an `outlier`, i.e. if
-                it's from an arbitary point in the context as opposed to part
+                it's from an arbitrary point in the context as opposed to part
                 of the current block of PDUs. Defaults to `False`
             timeout: How long to try (in ms) each destination for before
                 moving to the next destination. None indicates no timeout.
@@ -351,7 +351,7 @@ class FederationClient(FederationBase):
         outlier: bool = False,
         include_none: bool = False,
     ) -> List[EventBase]:
-        """Takes a list of PDUs and checks the signatures and hashs of each
+        """Takes a list of PDUs and checks the signatures and hashes of each
         one. If a PDU fails its signature check then we check if we have it in
         the database and if not then request if from the originating server of
         that PDU.
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index e704cf2f44..86051decd4 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -717,7 +717,7 @@ def server_matches_acl_event(server_name: str, acl_event: EventBase) -> bool:
     # server name is a literal IP
     allow_ip_literals = acl_event.content.get("allow_ip_literals", True)
     if not isinstance(allow_ip_literals, bool):
-        logger.warning("Ignorning non-bool allow_ip_literals flag")
+        logger.warning("Ignoring non-bool allow_ip_literals flag")
         allow_ip_literals = True
     if not allow_ip_literals:
         # check for ipv6 literals. These start with '['.
@@ -731,7 +731,7 @@ def server_matches_acl_event(server_name: str, acl_event: EventBase) -> bool:
     # next,  check the deny list
     deny = acl_event.content.get("deny", [])
     if not isinstance(deny, (list, tuple)):
-        logger.warning("Ignorning non-list deny ACL %s", deny)
+        logger.warning("Ignoring non-list deny ACL %s", deny)
         deny = []
     for e in deny:
         if _acl_entry_matches(server_name, e):
@@ -741,7 +741,7 @@ def server_matches_acl_event(server_name: str, acl_event: EventBase) -> bool:
     # then the allow list.
     allow = acl_event.content.get("allow", [])
     if not isinstance(allow, (list, tuple)):
-        logger.warning("Ignorning non-list allow ACL %s", allow)
+        logger.warning("Ignoring non-list allow ACL %s", allow)
         allow = []
     for e in allow:
         if _acl_entry_matches(server_name, e):
diff --git a/synapse/federation/send_queue.py b/synapse/federation/send_queue.py
index 6bbd762681..860b03f7b9 100644
--- a/synapse/federation/send_queue.py
+++ b/synapse/federation/send_queue.py
@@ -359,7 +359,7 @@ class BaseFederationRow(object):
     Specifies how to identify, serialize and deserialize the different types.
     """
 
-    TypeId = ""  # Unique string that ids the type. Must be overriden in sub classes.
+    TypeId = ""  # Unique string that ids the type. Must be overridden in sub classes.
 
     @staticmethod
     def from_data(data):
diff --git a/synapse/federation/sender/per_destination_queue.py b/synapse/federation/sender/per_destination_queue.py
index 4e698981a4..12966e239b 100644
--- a/synapse/federation/sender/per_destination_queue.py
+++ b/synapse/federation/sender/per_destination_queue.py
@@ -119,7 +119,7 @@ class PerDestinationQueue(object):
         )
 
     def send_pdu(self, pdu: EventBase, order: int) -> None:
-        """Add a PDU to the queue, and start the transmission loop if neccessary
+        """Add a PDU to the queue, and start the transmission loop if necessary
 
         Args:
             pdu: pdu to send
@@ -129,7 +129,7 @@ class PerDestinationQueue(object):
         self.attempt_new_transaction()
 
     def send_presence(self, states: Iterable[UserPresenceState]) -> None:
-        """Add presence updates to the queue. Start the transmission loop if neccessary.
+        """Add presence updates to the queue. Start the transmission loop if necessary.
 
         Args:
             states: presence to send
diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py
index 9f99311419..cfdf23d366 100644
--- a/synapse/federation/transport/client.py
+++ b/synapse/federation/transport/client.py
@@ -746,7 +746,7 @@ class TransportLayerClient(object):
     def remove_user_from_group(
         self, destination, group_id, requester_user_id, user_id, content
     ):
-        """Remove a user fron a group
+        """Remove a user from a group
         """
         path = _create_v1_path("/groups/%s/users/%s/remove", group_id, user_id)
 
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index bfb7831a02..d1bac318e7 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -109,7 +109,7 @@ class Authenticator(object):
         self.server_name = hs.hostname
         self.store = hs.get_datastore()
         self.federation_domain_whitelist = hs.config.federation_domain_whitelist
-        self.notifer = hs.get_notifier()
+        self.notifier = hs.get_notifier()
 
         self.replication_client = None
         if hs.config.worker.worker_app:
@@ -175,7 +175,7 @@ class Authenticator(object):
             await self.store.set_destination_retry_timings(origin, None, 0, 0)
 
             # Inform the relevant places that the remote server is back up.
-            self.notifer.notify_remote_server_up(origin)
+            self.notifier.notify_remote_server_up(origin)
             if self.replication_client:
                 # If we're on a worker we try and inform master about this. The
                 # replication client doesn't hook into the notifier to avoid
diff --git a/synapse/notifier.py b/synapse/notifier.py
index 87c120a59c..bd41f77852 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -83,7 +83,7 @@ class _NotifierUserStream(object):
         self.current_token = current_token
 
         # The last token for which we should wake up any streams that have a
-        # token that comes before it. This gets updated everytime we get poked.
+        # token that comes before it. This gets updated every time we get poked.
         # We start it at the current token since if we get any streams
         # that have a token from before we have no idea whether they should be
         # woken up or not, so lets just wake them up.
diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py
index 0843d28d4b..fb0dd04f88 100644
--- a/synapse/replication/http/_base.py
+++ b/synapse/replication/http/_base.py
@@ -92,11 +92,11 @@ class ReplicationEndpoint(object):
         # assert here that sub classes don't try and use the name.
         assert (
             "instance_name" not in self.PATH_ARGS
-        ), "`instance_name` is a reserved paramater name"
+        ), "`instance_name` is a reserved parameter name"
         assert (
             "instance_name"
             not in signature(self.__class__._serialize_payload).parameters
-        ), "`instance_name` is a reserved paramater name"
+        ), "`instance_name` is a reserved parameter name"
 
         assert self.METHOD in ("PUT", "POST", "GET")
 
diff --git a/synapse/replication/tcp/__init__.py b/synapse/replication/tcp/__init__.py
index 523a1358d4..1b8718b11d 100644
--- a/synapse/replication/tcp/__init__.py
+++ b/synapse/replication/tcp/__init__.py
@@ -25,7 +25,7 @@ Structure of the module:
  * command.py  - the definitions of all the valid commands
  * protocol.py - the TCP protocol classes
  * resource.py - handles streaming stream updates to replications
- * streams/    - the definitons of all the valid streams
+ * streams/    - the definitions of all the valid streams
 
 
 The general interaction of the classes are:
diff --git a/synapse/replication/tcp/commands.py b/synapse/replication/tcp/commands.py
index 0f453ff0a8..ccc7f1f0d1 100644
--- a/synapse/replication/tcp/commands.py
+++ b/synapse/replication/tcp/commands.py
@@ -47,7 +47,7 @@ class Command(metaclass=abc.ABCMeta):
 
     @abc.abstractmethod
     def to_line(self) -> str:
-        """Serialises the comamnd for the wire. Does not include the command
+        """Serialises the command for the wire. Does not include the command
         prefix.
         """
 
diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py
index 4198eece71..ca47f5cc88 100644
--- a/synapse/replication/tcp/protocol.py
+++ b/synapse/replication/tcp/protocol.py
@@ -317,7 +317,7 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
     def _queue_command(self, cmd):
         """Queue the command until the connection is ready to write to again.
         """
-        logger.debug("[%s] Queing as conn %r, cmd: %r", self.id(), self.state, cmd)
+        logger.debug("[%s] Queueing as conn %r, cmd: %r", self.id(), self.state, cmd)
         self.pending_commands.append(cmd)
 
         if len(self.pending_commands) > self.max_line_buffer:
diff --git a/synapse/replication/tcp/redis.py b/synapse/replication/tcp/redis.py
index e776b63183..0a7e7f67be 100644
--- a/synapse/replication/tcp/redis.py
+++ b/synapse/replication/tcp/redis.py
@@ -177,7 +177,7 @@ class RedisDirectTcpReplicationClientFactory(txredisapi.SubscriberFactory):
     Args:
         hs
         outbound_redis_connection: A connection to redis that will be used to
-            send outbound commands (this is seperate to the redis connection
+            send outbound commands (this is separate to the redis connection
             used to subscribe).
     """
 
diff --git a/synapse/replication/tcp/streams/events.py b/synapse/replication/tcp/streams/events.py
index bdddb62ad6..1c2a4cce7f 100644
--- a/synapse/replication/tcp/streams/events.py
+++ b/synapse/replication/tcp/streams/events.py
@@ -62,7 +62,7 @@ class BaseEventsStreamRow(object):
     Specifies how to identify, serialize and deserialize the different types.
     """
 
-    # Unique string that ids the type. Must be overriden in sub classes.
+    # Unique string that ids the type. Must be overridden in sub classes.
     TypeId = None  # type: str
 
     @classmethod
diff --git a/synapse/streams/config.py b/synapse/streams/config.py
index cd56cd91ed..ca7c16ff65 100644
--- a/synapse/streams/config.py
+++ b/synapse/streams/config.py
@@ -68,13 +68,13 @@ class PaginationConfig(object):
             elif from_tok:
                 from_tok = StreamToken.from_string(from_tok)
         except Exception:
-            raise SynapseError(400, "'from' paramater is invalid")
+            raise SynapseError(400, "'from' parameter is invalid")
 
         try:
             if to_tok:
                 to_tok = StreamToken.from_string(to_tok)
         except Exception:
-            raise SynapseError(400, "'to' paramater is invalid")
+            raise SynapseError(400, "'to' parameter is invalid")
 
         limit = parse_integer(request, "limit", default=default_limit)
 
diff --git a/synapse/streams/events.py b/synapse/streams/events.py
index fcd2aaa9c9..5d3eddcfdc 100644
--- a/synapse/streams/events.py
+++ b/synapse/streams/events.py
@@ -68,7 +68,7 @@ class EventSources(object):
         The returned token does not have the current values for fields other
         than `room`, since they are not used during pagination.
 
-        Retuns:
+        Returns:
             Deferred[StreamToken]
         """
         token = StreamToken(
diff --git a/synapse/util/__init__.py b/synapse/util/__init__.py
index 60f0de70f7..c63256d3bd 100644
--- a/synapse/util/__init__.py
+++ b/synapse/util/__init__.py
@@ -55,7 +55,7 @@ class Clock(object):
         return self._reactor.seconds()
 
     def time_msec(self):
-        """Returns the current system time in miliseconds since epoch."""
+        """Returns the current system time in milliseconds since epoch."""
         return int(self.time() * 1000)
 
     def looping_call(self, f, msec, *args, **kwargs):
diff --git a/synapse/util/async_helpers.py b/synapse/util/async_helpers.py
index 65abf0846e..f562770922 100644
--- a/synapse/util/async_helpers.py
+++ b/synapse/util/async_helpers.py
@@ -352,7 +352,7 @@ class ReadWriteLock(object):
     # resolved when they release the lock).
     #
     # Read: We know its safe to acquire a read lock when the latest writer has
-    # been resolved. The new reader is appeneded to the list of latest readers.
+    # been resolved. The new reader is appended to the list of latest readers.
     #
     # Write: We know its safe to acquire the write lock when both the latest
     # writers and readers have been resolved. The new writer replaces the latest
diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py
index 64f35fc288..9b09c08b89 100644
--- a/synapse/util/caches/descriptors.py
+++ b/synapse/util/caches/descriptors.py
@@ -516,7 +516,7 @@ class CacheListDescriptor(_CacheDescriptorBase):
         """
         Args:
             orig (function)
-            cached_method_name (str): The name of the chached method.
+            cached_method_name (str): The name of the cached method.
             list_name (str): Name of the argument which is the bulk lookup list
             num_args (int): number of positional arguments (excluding ``self``,
                 but including list_name) to use as cache keys. Defaults to all
diff --git a/synapse/util/distributor.py b/synapse/util/distributor.py
index 45af8d3eeb..da20523b70 100644
--- a/synapse/util/distributor.py
+++ b/synapse/util/distributor.py
@@ -39,7 +39,7 @@ class Distributor(object):
     Signals are named simply by strings.
 
     TODO(paul): It would be nice to give signals stronger object identities,
-      so we can attach metadata, docstrings, detect typoes, etc... But this
+      so we can attach metadata, docstrings, detect typos, etc... But this
       model will do for today.
     """
 
diff --git a/synapse/util/patch_inline_callbacks.py b/synapse/util/patch_inline_callbacks.py
index 2605f3c65b..54c046b6e1 100644
--- a/synapse/util/patch_inline_callbacks.py
+++ b/synapse/util/patch_inline_callbacks.py
@@ -192,7 +192,7 @@ def _check_yield_points(f: Callable, changes: List[str]):
                 result = yield d
             except Exception:
                 # this will fish an earlier Failure out of the stack where possible, and
-                # thus is preferable to passing in an exeception to the Failure
+                # thus is preferable to passing in an exception to the Failure
                 # constructor, since it results in less stack-mangling.
                 result = Failure()
 
diff --git a/synapse/util/retryutils.py b/synapse/util/retryutils.py
index af69587196..8794317caa 100644
--- a/synapse/util/retryutils.py
+++ b/synapse/util/retryutils.py
@@ -22,7 +22,7 @@ from synapse.api.errors import CodeMessageException
 
 logger = logging.getLogger(__name__)
 
-# the intial backoff, after the first transaction fails
+# the initial backoff, after the first transaction fails
 MIN_RETRY_INTERVAL = 10 * 60 * 1000
 
 # how much we multiply the backoff by after each subsequent fail
@@ -174,7 +174,7 @@ class RetryDestinationLimiter(object):
             # has been decommissioned.
             # If we get a 401, then we should probably back off since they
             # won't accept our requests for at least a while.
-            # 429 is us being aggresively rate limited, so lets rate limit
+            # 429 is us being aggressively rate limited, so lets rate limit
             # ourselves.
             if exc_val.code == 404 and self.backoff_on_404:
                 valid_err_code = False
diff --git a/synapse/visibility.py b/synapse/visibility.py
index 3dfd4af26c..0f042c5696 100644
--- a/synapse/visibility.py
+++ b/synapse/visibility.py
@@ -319,7 +319,7 @@ def filter_events_for_server(
         return True
 
     # Lets check to see if all the events have a history visibility
-    # of "shared" or "world_readable". If thats the case then we don't
+    # of "shared" or "world_readable". If that's the case then we don't
     # need to check membership (as we know the server is in the room).
     event_to_state_ids = yield storage.state.get_state_ids_for_events(
         frozenset(e.event_id for e in events),
@@ -335,7 +335,7 @@ def filter_events_for_server(
             visibility_ids.add(hist)
 
     # If we failed to find any history visibility events then the default
-    # is "shared" visiblity.
+    # is "shared" visibility.
     if not visibility_ids:
         all_open = True
     else:
diff --git a/tests/crypto/test_keyring.py b/tests/crypto/test_keyring.py
index 70c8e72303..f9ce609923 100644
--- a/tests/crypto/test_keyring.py
+++ b/tests/crypto/test_keyring.py
@@ -192,7 +192,7 @@ class KeyringTestCase(unittest.HomeserverTestCase):
         d = _verify_json_for_server(kr, "server9", {}, 0, "test unsigned")
         self.failureResultOf(d, SynapseError)
 
-        # should suceed on a signed object
+        # should succeed on a signed object
         d = _verify_json_for_server(kr, "server9", json1, 500, "test signed")
         # self.assertFalse(d.called)
         self.get_success(d)
diff --git a/tests/rest/client/test_retention.py b/tests/rest/client/test_retention.py
index 95475bb651..e54ffea150 100644
--- a/tests/rest/client/test_retention.py
+++ b/tests/rest/client/test_retention.py
@@ -126,7 +126,7 @@ class RetentionTestCase(unittest.HomeserverTestCase):
 
         events.append(self.get_success(store.get_event(valid_event_id)))
 
-        # Advance the time by anothe 2 days. After this, the first event should be
+        # Advance the time by another 2 days. After this, the first event should be
         # outdated but not the second one.
         self.reactor.advance(one_day_ms * 2 / 1000)
 
diff --git a/tests/rest/client/v1/test_presence.py b/tests/rest/client/v1/test_presence.py
index 0fdff79aa7..3c66255dac 100644
--- a/tests/rest/client/v1/test_presence.py
+++ b/tests/rest/client/v1/test_presence.py
@@ -60,7 +60,7 @@ class PresenceTestCase(unittest.HomeserverTestCase):
 
     def test_put_presence_disabled(self):
         """
-        PUT to the status endpoint with use_presence disbled will NOT call
+        PUT to the status endpoint with use_presence disabled will NOT call
         set_state on the presence handler.
         """
         self.hs.config.use_presence = False
diff --git a/tests/rest/client/v2_alpha/test_relations.py b/tests/rest/client/v2_alpha/test_relations.py
index fd641a7c2f..99c9f4e928 100644
--- a/tests/rest/client/v2_alpha/test_relations.py
+++ b/tests/rest/client/v2_alpha/test_relations.py
@@ -99,7 +99,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         self.assertEquals(400, channel.code, channel.json_body)
 
     def test_basic_paginate_relations(self):
-        """Tests that calling pagination API corectly the latest relations.
+        """Tests that calling pagination API correctly the latest relations.
         """
         channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction")
         self.assertEquals(200, channel.code, channel.json_body)
diff --git a/tests/test_mau.py b/tests/test_mau.py
index 49667ed7f4..654a6fa42d 100644
--- a/tests/test_mau.py
+++ b/tests/test_mau.py
@@ -166,7 +166,7 @@ class TestMauLimit(unittest.HomeserverTestCase):
         self.do_sync_for_user(token5)
         self.do_sync_for_user(token6)
 
-        # But old user cant
+        # But old user can't
         with self.assertRaises(SynapseError) as cm:
             self.do_sync_for_user(token1)
 
diff --git a/tests/util/test_logcontext.py b/tests/util/test_logcontext.py
index 95301c013c..58ee918f65 100644
--- a/tests/util/test_logcontext.py
+++ b/tests/util/test_logcontext.py
@@ -124,7 +124,7 @@ class LoggingContextTestCase(unittest.TestCase):
 
     @defer.inlineCallbacks
     def test_make_deferred_yieldable(self):
-        # a function which retuns an incomplete deferred, but doesn't follow
+        # a function which returns an incomplete deferred, but doesn't follow
         # the synapse rules.
         def blocking_function():
             d = defer.Deferred()
@@ -183,7 +183,7 @@ class LoggingContextTestCase(unittest.TestCase):
 
     @defer.inlineCallbacks
     def test_make_deferred_yieldable_with_await(self):
-        # an async function which retuns an incomplete coroutine, but doesn't
+        # an async function which returns an incomplete coroutine, but doesn't
         # follow the synapse rules.
 
         async def blocking_function():