diff options
| -rw-r--r-- | net/http/parser.lua | 8 | ||||
| -rw-r--r-- | spec/net_http_parser_spec.lua | 27 |
2 files changed, 34 insertions, 1 deletions
diff --git a/net/http/parser.lua b/net/http/parser.lua index a6624662..12d40883 100644 --- a/net/http/parser.lua +++ b/net/http/parser.lua @@ -59,7 +59,13 @@ function httpstream.new(success_cb, error_cb, parser_type, options_cb) while buffer:length() > 0 do if state == nil then -- read request local index = buffer:sub(1, headlimit):find("\r\n\r\n", nil, true); - if not index then return; end -- not enough data + if not index then + if buffer:length() > headlimit then + return error_cb("header-too-large"); + end + -- not enough data + return; + end -- FIXME was reason_phrase meant to be passed on somewhere? local method, path, httpversion, status_code, reason_phrase; -- luacheck: ignore reason_phrase local first_line; diff --git a/spec/net_http_parser_spec.lua b/spec/net_http_parser_spec.lua index 9da8ca73..84a81f05 100644 --- a/spec/net_http_parser_spec.lua +++ b/spec/net_http_parser_spec.lua @@ -167,6 +167,33 @@ Transfer-Encoding: chunked } ); end); + + it("should reject very large request heads", function() + local finished = false; + local success_cb = spy.new(function() + finished = true; + end) + local error_cb = spy.new(function() + finished = true; + end) + local parser = http_parser.new(success_cb, error_cb, "server", function() + return { head_size_limit = 1024; body_size_limit = 1024; buffer_size_limit = 2048 }; + end) + parser:feed("GET / HTTP/1.1\r\n"); + for i = 1, 64 do -- * header line > buffer_size_limit + parser:feed(string.format("Header-%04d: Yet-AnotherValue\r\n", i)); + if finished then + -- should hit an error around half-way + break + end + end + if not finished then + parser:feed("\r\n") + end + assert.spy(success_cb).was_called(0); + assert.spy(error_cb).was_called(1); + assert.spy(error_cb).was_called_with("header-too-large"); + end) end); it("should handle large chunked responses", function () |