From 0fd88a07a4951d6e06e20f7c3dcc5c115cd78ace Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Thu, 9 Feb 2023 22:57:32 +0000 Subject: net.http.parser: Improve handling of responses without content-length This ensures that we support responses without a content-length header, and allow streaming them through the streaming handler interface. An example of such a response would be Server-Sent Events streams. --- net/http/parser.lua | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'net/http') diff --git a/net/http/parser.lua b/net/http/parser.lua index 7fbade4c..b95d9017 100644 --- a/net/http/parser.lua +++ b/net/http/parser.lua @@ -130,10 +130,13 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb) partial = true; }; end - if len and len > bodylimit then + if not len or len > bodylimit then -- Early notification, for redirection success_cb(packet); - if not packet.body_sink then error = true; return error_cb("content-length-limit-exceeded"); end + if not packet.body_sink and (len and len > bodylimit) then + error = true; + return error_cb("content-length-limit-exceeded"); + end end if chunked and not packet.body_sink then success_cb(packet); @@ -174,9 +177,11 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb) end elseif packet.body_sink then local chunk = buffer:read_chunk(len); - while chunk and len > 0 do + while chunk and (not len or len > 0) do if packet.body_sink:write(chunk) then - len = len - #chunk; + if len then + len = len - #chunk; + end chunk = buffer:read_chunk(len); else error = true; @@ -188,9 +193,9 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb) packet.partial = nil; success_cb(packet); end - elseif buffer:length() >= len then + elseif not len or buffer:length() >= len then -- or not len assert(not chunked) - packet.body = buffer:read(len) or ""; + packet.body = len and buffer:read(len) or buffer:read_chunk() or ""; state = nil; packet.partial = nil; success_cb(packet); -- cgit v1.2.3