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remove spurious federation checks on localhost

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There's really no point in checking for destinations called "localhost" because
there is nothing stopping people creating other DNS entries which point to
127.0.0.1. The right fix for this is
https://github.com/matrix-org/synapse/issues/3953.

Blocking localhost, on the other hand, means that you get a surprise when
trying to connect a test server on localhost to an existing server (with a
'normal' server_name).
This commit is contained in:
Richard van der Hoff 2018-09-25 17:38:54 +01:00
parent d4e0861ff9
commit 9453c65948
1 changed files with 6 additions and 31 deletions
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37
synapse/federation/transaction_queue.py
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@ -137,26 +137,6 @@ class TransactionQueue(object):
self._processing_pending_presence = False self._processing_pending_presence = False
def can_send_to(self, destination):
"""Can we send messages to the given server?
We can't send messages to ourselves. If we are running on localhost
then we can only federation with other servers running on localhost.
Otherwise we only federate with servers on a public domain.
Args:
destination(str): The server we are possibly trying to send to.
Returns:
bool: True if we can send to the server.
"""
if destination == self.server_name:
return False
if self.server_name.startswith("localhost"):
return destination.startswith("localhost")
else:
return not destination.startswith("localhost")
def notify_new_events(self, current_id): def notify_new_events(self, current_id):
"""This gets called when we have some new events we might want to """This gets called when we have some new events we might want to
send out to other servers. send out to other servers.
@ -279,10 +259,7 @@ class TransactionQueue(object):
self._order += 1 self._order += 1
destinations = set(destinations) destinations = set(destinations)
destinations = set( destinations.discard(self.server_name)
dest for dest in destinations if self.can_send_to(dest)
)
logger.debug("Sending to: %s", str(destinations)) logger.debug("Sending to: %s", str(destinations))
if not destinations: if not destinations:
@ -358,7 +335,7 @@ class TransactionQueue(object):
for destinations, states in hosts_and_states: for destinations, states in hosts_and_states:
for destination in destinations: for destination in destinations:
if not self.can_send_to(destination): if destination == self.server_name:
continue continue
self.pending_presence_by_dest.setdefault( self.pending_presence_by_dest.setdefault(
@ -377,7 +354,8 @@ class TransactionQueue(object):
content=content, content=content,
) )
if not self.can_send_to(destination): if not destination == self.server_name:
logger.info("Not sending EDU to ourselves")
return return
sent_edus_counter.inc() sent_edus_counter.inc()
@ -392,11 +370,8 @@ class TransactionQueue(object):
self._attempt_new_transaction(destination) self._attempt_new_transaction(destination)
def send_device_messages(self, destination): def send_device_messages(self, destination):
if destination == self.server_name or destination == "localhost": if destination == self.server_name:
return logger.info("Not sending device update to ourselves")
if not self.can_send_to(destination):
return
self._attempt_new_transaction(destination) self._attempt_new_transaction(destination)