diff options
Diffstat (limited to 'synapse/replication/http/_base.py')
| -rw-r--r-- | synapse/replication/http/_base.py | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py index 4de3825fda..5e5376cf58 100644 --- a/synapse/replication/http/_base.py +++ b/synapse/replication/http/_base.py @@ -40,8 +40,8 @@ class ReplicationEndpoint(object): /_synapse/replication/send_event/:event_id/:txn_id - For POST requests the payload is serialized to json and sent as the body, - while for GET requests the payload is added as query parameters. See + For POST/PUT requests the payload is serialized to json and sent as the + body, while for GET requests the payload is added as query parameters. See `_serialize_payload` for details. Incoming requests are handled by overriding `_handle_request`. Servers @@ -55,8 +55,9 @@ class ReplicationEndpoint(object): PATH_ARGS (tuple[str]): A list of parameters to be added to the path. Adding parameters to the path (rather than payload) can make it easier to follow along in the log files. - POST (bool): True to use POST request with JSON body, or false to use - GET requests with query params. + METHOD (str): The method of the HTTP request, defaults to POST. Can be + one of POST, PUT or GET. If GET then the payload is sent as query + parameters rather than a JSON body. CACHE (bool): Whether server should cache the result of the request/ If true then transparently adds a txn_id to all requests, and `_handle_request` must return a Deferred. @@ -69,7 +70,7 @@ class ReplicationEndpoint(object): NAME = abc.abstractproperty() PATH_ARGS = abc.abstractproperty() - POST = True + METHOD = "POST" CACHE = True RETRY_ON_TIMEOUT = True @@ -80,6 +81,8 @@ class ReplicationEndpoint(object): timeout_ms=30 * 60 * 1000, ) + assert self.METHOD in ("PUT", "POST", "GET") + @abc.abstractmethod def _serialize_payload(**kwargs): """Static method that is called when creating a request. @@ -90,9 +93,9 @@ class ReplicationEndpoint(object): argument list. Returns: - Deferred[dict]|dict: If POST request then dictionary must be JSON - serialisable, otherwise must be appropriate for adding as query - args. + Deferred[dict]|dict: If POST/PUT request then dictionary must be + JSON serialisable, otherwise must be appropriate for adding as + query args. """ return {} @@ -130,10 +133,18 @@ class ReplicationEndpoint(object): txn_id = random_string(10) url_args.append(txn_id) - if cls.POST: + if cls.METHOD == "POST": request_func = client.post_json_get_json - else: + elif cls.METHOD == "PUT": + request_func = client.put_json + elif cls.METHOD == "GET": request_func = client.get_json + else: + # We have already asserted in the constructor that a + # compatible was picked, but lets be paranoid. + raise Exception( + "Unknown METHOD on %s replication endpoint" % (cls.NAME,) + ) uri = "http://%s:%s/_synapse/replication/%s/%s" % ( host, port, cls.NAME, "/".join(url_args) @@ -151,7 +162,7 @@ class ReplicationEndpoint(object): if e.code != 504 or not cls.RETRY_ON_TIMEOUT: raise - logger.warn("send_federation_events_to_master request timed out") + logger.warn("%s request timed out", cls.NAME) # If we timed out we probably don't need to worry about backing # off too much, but lets just wait a little anyway. @@ -172,10 +183,8 @@ class ReplicationEndpoint(object): """ url_args = list(self.PATH_ARGS) - method = "GET" handler = self._handle_request - if self.POST: - method = "POST" + method = self.METHOD if self.CACHE: handler = self._cached_handler @@ -190,7 +199,9 @@ class ReplicationEndpoint(object): http_server.register_paths(method, [pattern], handler) def _cached_handler(self, request, txn_id, **kwargs): - """Wraps `_handle_request` the responses should be cached. + """Called on new incoming requests when caching is enabled. Checks + if there is a cached response for the request and returns that, + otherwise calls `_handle_request` and caches its response. """ # We just use the txn_id here, but we probably also want to use the # other PATH_ARGS as well. |