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authorIngela Anderton Andin <[email protected]>2015-11-18 10:58:22 +0100
committerIngela Anderton Andin <[email protected]>2015-11-27 16:21:32 +0100
commitebbbd714ad2398858b09065bce82830d8affe2a4 (patch)
tree8a8851d7053492d8a045e07b5dce2c26a9476f76 /lib/inets/src
parent7096f9228af1cdf98843660560a0d84b48cf766b (diff)
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inets: Add warning header in "chunk trailer" when mod_esi callback times out or fails
Also remove legacy debug macros and add help function httpd_util:error_log/2 to avoid code duplication.
Diffstat (limited to 'lib/inets/src')
-rw-r--r--lib/inets/src/http_lib/http_chunk.erl19
-rw-r--r--lib/inets/src/http_lib/http_response.erl2
-rw-r--r--lib/inets/src/http_server/httpd_example.erl10
-rw-r--r--lib/inets/src/http_server/httpd_request_handler.erl15
-rw-r--r--lib/inets/src/http_server/httpd_response.erl27
-rw-r--r--lib/inets/src/http_server/httpd_util.erl16
-rw-r--r--lib/inets/src/http_server/mod_esi.erl42
7 files changed, 83 insertions, 48 deletions
diff --git a/lib/inets/src/http_lib/http_chunk.erl b/lib/inets/src/http_lib/http_chunk.erl
index 9699856bf8..7325f24809 100644
--- a/lib/inets/src/http_lib/http_chunk.erl
+++ b/lib/inets/src/http_lib/http_chunk.erl
@@ -25,7 +25,7 @@
-include("http_internal.hrl").
%% API
--export([decode/3, encode/1, encode_last/0, handle_headers/2]).
+-export([decode/3, encode/1, encode_last/0, encode_last/1, handle_headers/2]).
%% Callback API - used for example if the chunkedbody is received a
%% little at a time on a socket.
-export([decode_size/1, ignore_extensions/1, decode_data/1, decode_trailer/1]).
@@ -85,6 +85,11 @@ encode(Chunk) when is_list(Chunk)->
encode_last() ->
<<$0, ?CR, ?LF, ?CR, ?LF >>.
+encode_last([]) ->
+ encode_last();
+encode_last(Trailers0) ->
+ Trailers = list_to_binary(encode_trailers(Trailers0)),
+ <<$0, ?CR, ?LF, Trailers/binary>>.
%%-------------------------------------------------------------------------
%% handle_headers(HeaderRecord, ChunkedHeaders) -> NewHeaderRecord
@@ -276,10 +281,18 @@ decode_trailer(<<?CR, ?LF, Rest/binary>>, Header, Headers, Body, BodyLength, Rem
Body, BodyLength, RemainingSize, TotalMaxHeaderSize);
decode_trailer(<<Octet, Rest/binary>>, Header, Headers, Body,
BodyLength, RemainingSize, TotalMaxHeaderSize) ->
- decode_trailer(Rest, [Octet | Header], Headers,
- Body, BodyLength, RemainingSize - 1, TotalMaxHeaderSize).
+ decode_trailer(Rest, [Octet | Header], Headers,
+ Body, BodyLength, remaing_size(RemainingSize, 1), TotalMaxHeaderSize).
remaing_size(nolimit, _) ->
nolimit;
remaing_size(Total, Consumed) ->
Total - Consumed.
+
+encode_trailers(Trailers) ->
+ encode_trailers(Trailers, "").
+
+encode_trailers([], Acc) ->
+ Acc ++ ?CRLF ++ ?CRLF;
+encode_trailers([{Header, Value} | Rest], Acc) ->
+ encode_trailers(Rest, Header ++ ":" ++ Value ++ ?CRLF ++ Acc).
diff --git a/lib/inets/src/http_lib/http_response.erl b/lib/inets/src/http_lib/http_response.erl
index d13670700c..42e5dd263d 100644
--- a/lib/inets/src/http_lib/http_response.erl
+++ b/lib/inets/src/http_lib/http_response.erl
@@ -65,6 +65,8 @@ header_list(Headers) ->
%%%========================================================================
fill_headers([], _, Headers) ->
Headers;
+fill_headers([[]], _, Headers) ->
+ Headers;
fill_headers([[Ch|HeaderFold]|Tail], Folded, Headers)
when Ch == $\t; Ch == $\s ->
fill_headers(Tail, [HeaderFold|Folded], Headers);
diff --git a/lib/inets/src/http_server/httpd_example.erl b/lib/inets/src/http_server/httpd_example.erl
index d729affd6d..0222487a4b 100644
--- a/lib/inets/src/http_server/httpd_example.erl
+++ b/lib/inets/src/http_server/httpd_example.erl
@@ -24,7 +24,7 @@
-export([newformat/3]).
%% These are used by the inets test-suite
--export([delay/1]).
+-export([delay/1, chunk_timeout/3]).
print(String) ->
@@ -142,3 +142,11 @@ i(F) -> i(F,[]).
i(F,A) -> io:format(F ++ "~n",A).
sleep(T) -> receive after T -> ok end.
+
+%% ------------------------------------------------------
+
+chunk_timeout(SessionID, _, StrInt) ->
+ mod_esi:deliver(SessionID, "Tranfer-Encoding:chunked/html\r\n\r\n"),
+ mod_esi:deliver(SessionID, top("Test chunk encoding timeout")),
+ timer:sleep(20000),
+ mod_esi:deliver(SessionID, footer()).
diff --git a/lib/inets/src/http_server/httpd_request_handler.erl b/lib/inets/src/http_server/httpd_request_handler.erl
index 143d599edb..134576059d 100644
--- a/lib/inets/src/http_server/httpd_request_handler.erl
+++ b/lib/inets/src/http_server/httpd_request_handler.erl
@@ -630,21 +630,10 @@ decrease(N) when is_integer(N) ->
decrease(N) ->
N.
-error_log(ReasonString, Info) ->
+error_log(ReasonString, #mod{config_db = ConfigDB}) ->
Error = lists:flatten(
io_lib:format("Error reading request: ~s", [ReasonString])),
- error_log(mod_log, Info, Error),
- error_log(mod_disk_log, Info, Error).
-
-error_log(Mod, #mod{config_db = ConfigDB} = Info, String) ->
- Modules = httpd_util:lookup(ConfigDB, modules,
- [mod_get, mod_head, mod_log]),
- case lists:member(Mod, Modules) of
- true ->
- Mod:error_log(Info, String);
- _ ->
- ok
- end.
+ httpd_util:error_log(ConfigDB, Error).
%%--------------------------------------------------------------------
diff --git a/lib/inets/src/http_server/httpd_response.erl b/lib/inets/src/http_server/httpd_response.erl
index 71243f525a..c0b5f09faf 100644
--- a/lib/inets/src/http_server/httpd_response.erl
+++ b/lib/inets/src/http_server/httpd_response.erl
@@ -20,8 +20,8 @@
%%
-module(httpd_response).
-export([generate_and_send_response/1, send_status/3, send_header/3,
- send_body/3, send_chunk/3, send_final_chunk/2, split_header/2,
- is_disable_chunked_send/1, cache_headers/2]).
+ send_body/3, send_chunk/3, send_final_chunk/2, send_final_chunk/3,
+ split_header/2, is_disable_chunked_send/1, cache_headers/2]).
-export([map_status_code/2]).
-include_lib("inets/src/inets_app/inets_internal.hrl").
@@ -89,8 +89,7 @@ traverse_modules(ModData,[Module|Rest]) ->
"~n Error: ~p"
"~n Stack trace: ~p",
[Module, T, E, ?STACK()])),
- report_error(mod_log, ModData#mod.config_db, String),
- report_error(mod_disk_log, ModData#mod.config_db, String),
+ httpd_util:error_log(ModData#mod.config_db, String),
send_status(ModData, 500, none),
done
end.
@@ -245,7 +244,6 @@ send_chunk(_, <<>>, _) ->
ok;
send_chunk(_, [], _) ->
ok;
-
send_chunk(#mod{http_version = "HTTP/1.1",
socket_type = Type, socket = Sock}, Response0, false) ->
Response = http_chunk:encode(Response0),
@@ -254,10 +252,13 @@ send_chunk(#mod{http_version = "HTTP/1.1",
send_chunk(#mod{socket_type = Type, socket = Sock} = _ModData, Response, _) ->
httpd_socket:deliver(Type, Sock, Response).
+send_final_chunk(Mod, IsDisableChunkedSend) ->
+ send_final_chunk(Mod, [], IsDisableChunkedSend).
+
send_final_chunk(#mod{http_version = "HTTP/1.1",
- socket_type = Type, socket = Sock}, false) ->
- httpd_socket:deliver(Type, Sock, http_chunk:encode_last());
-send_final_chunk(#mod{socket_type = Type, socket = Sock}, _) ->
+ socket_type = Type, socket = Sock}, Trailers, false) ->
+ httpd_socket:deliver(Type, Sock, http_chunk:encode_last(Trailers));
+send_final_chunk(#mod{socket_type = Type, socket = Sock}, _, _) ->
httpd_socket:close(Type, Sock).
is_disable_chunked_send(Db) ->
@@ -397,16 +398,6 @@ send_response_old(#mod{socket_type = Type,
content_length(Body)->
integer_to_list(httpd_util:flatlength(Body)).
-report_error(Mod, ConfigDB, Error) ->
- Modules = httpd_util:lookup(ConfigDB, modules,
- [mod_get, mod_head, mod_log]),
- case lists:member(Mod, Modules) of
- true ->
- Mod:report_error(ConfigDB, Error);
- _ ->
- ok
- end.
-
handle_headers([], NewHeaders) ->
{ok, NewHeaders};
diff --git a/lib/inets/src/http_server/httpd_util.erl b/lib/inets/src/http_server/httpd_util.erl
index 0387d71911..ab43f0b378 100644
--- a/lib/inets/src/http_server/httpd_util.erl
+++ b/lib/inets/src/http_server/httpd_util.erl
@@ -31,7 +31,7 @@
convert_netscapecookie_date/1, enable_debug/1, valid_options/3,
modules_validate/1, module_validate/1,
dir_validate/2, file_validate/2, mime_type_validate/1,
- mime_types_validate/1, custom_date/0]).
+ mime_types_validate/1, custom_date/0, error_log/2]).
-export([encode_hex/1, decode_hex/1]).
-include_lib("kernel/include/file.hrl").
@@ -776,3 +776,17 @@ do_enable_debug([{Level,Modules}|Rest])
ok
end,
do_enable_debug(Rest).
+
+error_log(ConfigDb, Error) ->
+ error_log(mod_log, ConfigDb, Error),
+ error_log(mod_disk_log, ConfigDb, Error).
+
+error_log(Mod, ConfigDB, Error) ->
+ Modules = httpd_util:lookup(ConfigDB, modules,
+ [mod_get, mod_head, mod_log]),
+ case lists:member(Mod, Modules) of
+ true ->
+ Mod:report_error(ConfigDB, Error);
+ _ ->
+ ok
+ end.
diff --git a/lib/inets/src/http_server/mod_esi.erl b/lib/inets/src/http_server/mod_esi.erl
index 6764e2c51e..1923411449 100644
--- a/lib/inets/src/http_server/mod_esi.erl
+++ b/lib/inets/src/http_server/mod_esi.erl
@@ -376,7 +376,6 @@ erl_scheme_webpage_chunk(Mod, Func, Env, Input, ModData) ->
end),
Response = deliver_webpage_chunk(ModData, Pid),
-
process_flag(trap_exit,false),
Response.
@@ -418,7 +417,6 @@ deliver_webpage_chunk(#mod{config_db = Db} = ModData, Pid, Timeout) ->
?hdrv("deliver_webpage_chunk - timeout", []),
send_headers(ModData, 504, [{"connection", "close"}]),
httpd_socket:close(ModData#mod.socket_type, ModData#mod.socket),
- process_flag(trap_exit,false),
{proceed,[{response, {already_sent, 200, 0}} | ModData#mod.data]}
end.
@@ -446,7 +444,6 @@ send_headers(ModData, StatusCode, HTTPHeaders) ->
ExtraHeaders ++ HTTPHeaders).
handle_body(_, #mod{method = "HEAD"} = ModData, _, _, Size, _) ->
- process_flag(trap_exit,false),
{proceed, [{response, {already_sent, 200, Size}} | ModData#mod.data]};
handle_body(Pid, ModData, Body, Timeout, Size, IsDisableChunkedSend) ->
@@ -454,33 +451,54 @@ handle_body(Pid, ModData, Body, Timeout, Size, IsDisableChunkedSend) ->
httpd_response:send_chunk(ModData, Body, IsDisableChunkedSend),
receive
{esi_data, Data} when is_binary(Data) ->
- ?hdrt("handle_body - received binary data (esi)", []),
handle_body(Pid, ModData, Data, Timeout, Size + byte_size(Data),
IsDisableChunkedSend);
{esi_data, Data} ->
- ?hdrt("handle_body - received data (esi)", []),
handle_body(Pid, ModData, Data, Timeout, Size + length(Data),
IsDisableChunkedSend);
{ok, Data} ->
- ?hdrt("handle_body - received data (ok)", []),
handle_body(Pid, ModData, Data, Timeout, Size + length(Data),
IsDisableChunkedSend);
{'EXIT', Pid, normal} when is_pid(Pid) ->
- ?hdrt("handle_body - exit:normal", []),
httpd_response:send_final_chunk(ModData, IsDisableChunkedSend),
{proceed, [{response, {already_sent, 200, Size}} |
ModData#mod.data]};
{'EXIT', Pid, Reason} when is_pid(Pid) ->
- ?hdrv("handle_body - exit", [{reason, Reason}]),
- httpd_response:send_final_chunk(ModData, IsDisableChunkedSend),
+ Error = lists:flatten(io_lib:format("mod_esi process failed with reason ~p", [Reason])),
+ httpd_util:error_log(ModData#mod.config_db, Error),
+ httpd_response:send_final_chunk(ModData,
+ [{"Warning", "199 inets server - body maybe incomplete, "
+ "internal server error"}],
+ IsDisableChunkedSend),
done
after Timeout ->
- ?hdrv("handle_body - timeout", []),
- process_flag(trap_exit,false),
- httpd_response:send_final_chunk(ModData, IsDisableChunkedSend),
+ kill_esi_delivery_process(Pid),
+ httpd_response:send_final_chunk(ModData, [{"Warning", "199 inets server - "
+ "body maybe incomplete, timed out"}],
+ IsDisableChunkedSend),
done
end.
+kill_esi_delivery_process(Pid) ->
+ exit(Pid, kill),
+ receive
+ {'EXIT', Pid, killed} ->
+ %% Clean message queue
+ receive
+ {esi_data, _} ->
+ ok
+ after 0 ->
+ ok
+ end,
+ receive
+ {ok, _} ->
+ ok
+ after 0 ->
+ ok
+ end
+ end.
+
+
erl_script_timeout(Db) ->
httpd_util:lookup(Db, erl_script_timeout, ?DEFAULT_ERL_TIMEOUT).