diff options
Diffstat (limited to 'synapse/replication/tcp')
| -rw-r--r-- | synapse/replication/tcp/protocol.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py index 6123c995b9..49ae5b3355 100644 --- a/synapse/replication/tcp/protocol.py +++ b/synapse/replication/tcp/protocol.py @@ -268,7 +268,17 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver): if "\n" in string: raise Exception("Unexpected newline in command: %r", string) - self.sendLine(string.encode("utf-8")) + encoded_string = string.encode("utf-8") + + if len(encoded_string) > self.MAX_LENGTH: + raise Exception( + "Failed to send command %s as too long (%d > %d)" % ( + cmd.NAME, + len(encoded_string), self.MAX_LENGTH, + ) + ) + + self.sendLine(encoded_string) self.last_sent_command = self.clock.time_msec() @@ -361,6 +371,11 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver): def id(self): return "%s-%s" % (self.name, self.conn_id) + def lineLengthExceeded(self, line): + """Called when we receive a line that is above the maximum line length + """ + self.send_error("Line length exceeded") + class ServerReplicationStreamProtocol(BaseReplicationStreamProtocol): VALID_INBOUND_COMMANDS = VALID_CLIENT_COMMANDS |