diff --git a/synapse/http/server.py b/synapse/http/server.py index 6dacb31037..5733abb5dc 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -27,6 +27,7 @@ from twisted.internet import defer from twisted.python import failure from twisted.web import resource, server from twisted.web.server import NOT_DONE_YET +from twisted.web.static import NoRangeStaticProducer from twisted.web.util import redirectTo import synapse.events @@ -42,6 +43,11 @@ from synapse.util.caches import intern_dict from synapse.util.logcontext import LoggingContext, PreserveLoggingContext from synapse.util.metrics import Measure +if PY3: + from io import BytesIO +else: + from cStringIO import StringIO as BytesIO + logger = logging.getLogger(__name__) HTML_ERROR_TEMPLATE = """ @@ -413,8 +419,7 @@ def respond_with_json(request, code, json_object, send_cors=False, return if pretty_print: - json_bytes = (encode_pretty_printed_json(json_object) + "\n" - ).encode("utf-8") + json_bytes = encode_pretty_printed_json(json_object) + b"\n" else: if canonical_json or synapse.events.USE_FROZEN_DICTS: # canonicaljson already encodes to bytes @@ -450,8 +455,12 @@ def respond_with_json_bytes(request, code, json_bytes, send_cors=False, if send_cors: set_cors_headers(request) - request.write(json_bytes) - finish_request(request) + # todo: we can almost certainly avoid this copy and encode the json straight into + # the bytesIO, but it would involve faffing around with string->bytes wrappers. + bytes_io = BytesIO(json_bytes) + + producer = NoRangeStaticProducer(request, bytes_io) + producer.start() return NOT_DONE_YET