diff options
Diffstat (limited to 'synapse/http/federation/matrix_federation_agent.py')
| -rw-r--r-- | synapse/http/federation/matrix_federation_agent.py | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/synapse/http/federation/matrix_federation_agent.py b/synapse/http/federation/matrix_federation_agent.py index 50baa8bf0a..c4312a3653 100644 --- a/synapse/http/federation/matrix_federation_agent.py +++ b/synapse/http/federation/matrix_federation_agent.py @@ -47,9 +47,6 @@ WELL_KNOWN_INVALID_CACHE_PERIOD = 1 * 3600 # cap for .well-known cache period WELL_KNOWN_MAX_CACHE_PERIOD = 48 * 3600 -# magic value to mark an invalid well-known -INVALID_WELL_KNOWN = object() - logger = logging.getLogger(__name__) well_known_cache = TTLCache('well-known') @@ -108,8 +105,7 @@ class MatrixFederationAgent(object): # our cache of .well-known lookup results, mapping from server name # to delegated name. The values can be: # `bytes`: a valid server-name - # `None`: there is no .well-known here - # INVALID_WELL_KNWOWN: the .well-known here is invalid + # `None`: there is no (valid) .well-known here self._well_known_cache = _well_known_cache @defer.inlineCallbacks @@ -302,9 +298,6 @@ class MatrixFederationAgent(object): if cache_period > 0: self._well_known_cache.set(server_name, result, cache_period) - if result == INVALID_WELL_KNOWN: - raise Exception("invalid .well-known on this server") - defer.returnValue(result) @defer.inlineCallbacks @@ -331,16 +324,7 @@ class MatrixFederationAgent(object): body = yield make_deferred_yieldable(readBody(response)) if response.code != 200: raise Exception("Non-200 response %s" % (response.code, )) - except Exception as e: - logger.info("Error fetching %s: %s", uri_str, e) - - # add some randomness to the TTL to avoid a stampeding herd every hour - # after startup - cache_period = WELL_KNOWN_INVALID_CACHE_PERIOD - cache_period += random.uniform(0, WELL_KNOWN_DEFAULT_CACHE_PERIOD_JITTER) - defer.returnValue((None, cache_period)) - try: parsed_body = json.loads(body.decode('utf-8')) logger.info("Response from .well-known: %s", parsed_body) if not isinstance(parsed_body, dict): @@ -348,10 +332,13 @@ class MatrixFederationAgent(object): if "m.server" not in parsed_body: raise Exception("Missing key 'm.server'") except Exception as e: - logger.info("invalid .well-known response from %s: %s", uri_str, e) + logger.info("Error fetching %s: %s", uri_str, e) + + # add some randomness to the TTL to avoid a stampeding herd every hour + # after startup cache_period = WELL_KNOWN_INVALID_CACHE_PERIOD cache_period += random.uniform(0, WELL_KNOWN_DEFAULT_CACHE_PERIOD_JITTER) - defer.returnValue((INVALID_WELL_KNOWN, cache_period)) + defer.returnValue((None, cache_period)) result = parsed_body["m.server"].encode("ascii") |