Chapril/xmpp.chapril.org-ejabberd
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Remove http_poll module

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For couple years browsers did limit ability to change cookies from js
for different domains, this made http_poll connections practically not
usuable. I don't think this module is used at all so it's time to put it
to rest.
This commit is contained in:
Paweł Chmielowski 2015-04-15 10:47:10 +02:00
parent a1f81057ca
commit ba69c469b5
7 changed files with 9 additions and 456 deletions
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1
ejabberd.yml.example
View File

@ -165,7 +165,6 @@ listen:
"/websocket": ejabberd_http_ws
## "/pub/archive": mod_http_fileserver
web_admin: true
http_poll: true
http_bind: true
## register: true
captcha: true

1
src/ejabberd_c2s.erl
View File

@ -2024,7 +2024,6 @@ get_conn_type(StateData) ->
gen_tcp -> c2s_compressed;
p1_tls -> c2s_compressed_tls
end;
ejabberd_http_poll -> http_poll;
ejabberd_http_bind -> http_bind;
_ -> unknown
end.

10
src/ejabberd_http.erl
View File

@ -56,7 +56,7 @@
%% to have the module test_web handle requests with
%% paths starting with "/test/module":
%%
%% {5280, ejabberd_http, [http_poll, web_admin,
%% {5280, ejabberd_http, [http_bind, web_admin,
%% {request_handlers, [{["test", "module"], mod_test_web}]}]}
%%
request_handlers = [],
@ -135,10 +135,6 @@ init({SockMod, Socket}, Opts) ->
true -> [{[<<"http-bind">>], mod_http_bind}];
false -> []
end,
Poll = case proplists:get_bool(http_poll, Opts) of
true -> [{[<<"http-poll">>], ejabberd_http_poll}];
false -> []
end,
XMLRPC = case proplists:get_bool(xmlrpc, Opts) of
true -> [{[], ejabberd_xmlrpc}];
false -> []
@ -151,7 +147,7 @@ init({SockMod, Socket}, Opts) ->
Mod} || {Path, Mod} <- Hs]
end, []),
RequestHandlers = DefinedHandlers ++ Captcha ++ Register ++
Admin ++ Bind ++ Poll ++ XMLRPC,
Admin ++ Bind ++ XMLRPC,
?DEBUG("S: ~p~n", [RequestHandlers]),
DefaultHost = gen_mod:get_opt(default_host, Opts, fun(A) -> A end, undefined),
@ -862,7 +858,7 @@ transform_listen_option(web_admin, Opts) ->
transform_listen_option(http_bind, Opts) ->
[{http_bind, true}|Opts];
transform_listen_option(http_poll, Opts) ->
[{http_poll, true}|Opts];
Opts;
transform_listen_option({request_handlers, Hs}, Opts) ->
Hs1 = lists:map(
fun({PList, Mod}) when is_list(PList) ->

425
src/ejabberd_http_poll.erl
View File

@ -1,425 +0,0 @@
%%%----------------------------------------------------------------------
%%% File : ejabberd_http_poll.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : HTTP Polling support (XEP-0025)
%%% Created : 4 Mar 2004 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2015 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%----------------------------------------------------------------------
-module(ejabberd_http_poll).
-author('alexey@process-one.net').
-behaviour(gen_fsm).
%% External exports
-export([start_link/3, init/1, handle_event/3,
handle_sync_event/4, code_change/4, handle_info/3,
terminate/3, send/2, setopts/2, sockname/1, peername/1,
controlling_process/2, close/1, process/2]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("jlib.hrl").
-include("ejabberd_http.hrl").
-record(http_poll, {id :: pid() | binary(), pid :: pid()}).
-type poll_socket() :: #http_poll{}.
-export_type([poll_socket/0]).
-record(state,
{id, key, socket, output = [], input = <<"">>,
waiting_input = false, last_receiver, http_poll_timeout,
timer}).
%-define(DBGFSM, true).
-ifdef(DBGFSM).
-define(FSMOPTS, [{debug, [trace]}]).
-else.
-define(FSMOPTS, []).
-endif.
-define(HTTP_POLL_TIMEOUT, 300).
-define(CT,
{<<"Content-Type">>, <<"text/xml; charset=utf-8">>}).
-define(BAD_REQUEST,
[?CT, {<<"Set-Cookie">>, <<"ID=-3:0; expires=-1">>}]).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
start(ID, Key, IP) ->
mnesia:create_table(http_poll,
[{ram_copies, [node()]},
{attributes, record_info(fields, http_poll)}]),
supervisor:start_child(ejabberd_http_poll_sup, [ID, Key, IP]).
start_link(ID, Key, IP) ->
gen_fsm:start_link(?MODULE, [ID, Key, IP], ?FSMOPTS).
send({http_poll, FsmRef, _IP}, Packet) ->
gen_fsm:sync_send_all_state_event(FsmRef,
{send, Packet}).
setopts({http_poll, FsmRef, _IP}, Opts) ->
case lists:member({active, once}, Opts) of
true ->
gen_fsm:send_all_state_event(FsmRef,
{activate, self()});
_ -> ok
end.
sockname(_Socket) -> {ok, {{0, 0, 0, 0}, 0}}.
peername({http_poll, _FsmRef, IP}) -> {ok, IP}.
controlling_process(_Socket, _Pid) -> ok.
close({http_poll, FsmRef, _IP}) ->
catch gen_fsm:sync_send_all_state_event(FsmRef, close).
process([],
#request{data = Data, ip = IP} = _Request) ->
case catch parse_request(Data) of
{ok, ID1, Key, NewKey, Packet} ->
ID = if
(ID1 == <<"0">>) or (ID1 == <<"mobile">>) ->
NewID = p1_sha:sha(term_to_binary({now(), make_ref()})),
{ok, Pid} = start(NewID, <<"">>, IP),
mnesia:transaction(
fun() ->
mnesia:write(#http_poll{id = NewID, pid = Pid})
end),
NewID;
true ->
ID1
end,
case http_put(ID, Key, NewKey, Packet) of
{error, not_exists} ->
{200, ?BAD_REQUEST, <<"">>};
{error, bad_key} ->
{200, ?BAD_REQUEST, <<"">>};
ok ->
receive
after 100 -> ok
end,
case http_get(ID) of
{error, not_exists} ->
{200, ?BAD_REQUEST, <<"">>};
{ok, OutPacket} ->
if
ID == ID1 ->
Cookie = <<"ID=", ID/binary, "; expires=-1">>,
{200, [?CT, {<<"Set-Cookie">>, Cookie}],
OutPacket};
ID1 == <<"mobile">> ->
{200, [?CT], [ID, $\n, OutPacket]};
true ->
Cookie = <<"ID=", ID/binary, "; expires=-1">>,
{200, [?CT, {<<"Set-Cookie">>, Cookie}],
OutPacket}
end
end
end;
_ ->
HumanHTMLxmlel = get_human_html_xmlel(),
{200, [?CT, {<<"Set-Cookie">>, <<"ID=-2:0; expires=-1">>}], HumanHTMLxmlel}
end;
process(_, _Request) ->
{400, [],
#xmlel{name = <<"h1">>, attrs = [],
children = [{xmlcdata, <<"400 Bad Request">>}]}}.
%% Code copied from mod_http_bind.erl and customized
get_human_html_xmlel() ->
Heading = <<"ejabberd ",
(iolist_to_binary(atom_to_list(?MODULE)))/binary>>,
#xmlel{name = <<"html">>,
attrs =
[{<<"xmlns">>, <<"http://www.w3.org/1999/xhtml">>}],
children =
[#xmlel{name = <<"head">>, attrs = [],
children =
[#xmlel{name = <<"title">>, attrs = [],
children = [{xmlcdata, Heading}]}]},
#xmlel{name = <<"body">>, attrs = [],
children =
[#xmlel{name = <<"h1">>, attrs = [],
children = [{xmlcdata, Heading}]},
#xmlel{name = <<"p">>, attrs = [],
children =
[{xmlcdata, <<"An implementation of ">>},
#xmlel{name = <<"a">>,
attrs =
[{<<"href">>,
<<"http://xmpp.org/extensions/xep-0025.html">>}],
children =
[{xmlcdata,
<<"Jabber HTTP Polling (XEP-0025)">>}]}]},
#xmlel{name = <<"p">>, attrs = [],
children =
[{xmlcdata,
<<"This web page is only informative. To "
"use HTTP-Poll you need a Jabber/XMPP "
"client that supports it.">>}]}]}]}.
%%%----------------------------------------------------------------------
%%% Callback functions from gen_fsm
%%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
%% Func: init/1
%% Returns: {ok, StateName, StateData} |
%% {ok, StateName, StateData, Timeout} |
%% ignore |
%% {stop, StopReason}
%%----------------------------------------------------------------------
init([ID, Key, IP]) ->
?INFO_MSG("started: ~p", [{ID, Key, IP}]),
Opts = ejabberd_c2s_config:get_c2s_limits(),
HTTPPollTimeout = ejabberd_config:get_option(
{http_poll_timeout, ?MYNAME},
fun(I) when is_integer(I), I>0 -> I end,
?HTTP_POLL_TIMEOUT) * 1000,
Socket = {http_poll, self(), IP},
ejabberd_socket:start(ejabberd_c2s, ?MODULE, Socket,
Opts),
Timer = erlang:start_timer(HTTPPollTimeout, self(), []),
{ok, loop,
#state{id = ID, key = Key, socket = Socket,
http_poll_timeout = HTTPPollTimeout, timer = Timer}}.
%%----------------------------------------------------------------------
%% Func: StateName/2
%% Returns: {next_state, NextStateName, NextStateData} |
%% {next_state, NextStateName, NextStateData, Timeout} |
%% {stop, Reason, NewStateData}
%% {stop, Reason, NewStateData}
%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
%% Func: StateName/3
%% Returns: {next_state, NextStateName, NextStateData} |
%% {next_state, NextStateName, NextStateData, Timeout} |
%% {reply, Reply, NextStateName, NextStateData} |
%% {reply, Reply, NextStateName, NextStateData, Timeout} |
%% {stop, Reason, NewStateData} |
%% {stop, Reason, Reply, NewStateData}
%% {stop, Reason, Reply, NewStateData}
%%----------------------------------------------------------------------
%state_name(Event, From, StateData) ->
% Reply = ok,
% {reply, Reply, state_name, StateData}.
%%----------------------------------------------------------------------
%% Func: handle_event/3
%% Returns: {next_state, NextStateName, NextStateData} |
%% {next_state, NextStateName, NextStateData, Timeout} |
%% {stop, Reason, NewStateData}
%%----------------------------------------------------------------------
handle_event({activate, From}, StateName, StateData) ->
case StateData#state.input of
<<"">> ->
{next_state, StateName,
StateData#state{waiting_input = {From, ok}}};
Input ->
Receiver = From,
Receiver !
{tcp, StateData#state.socket, Input},
{next_state, StateName,
StateData#state{input = <<"">>, waiting_input = false,
last_receiver = Receiver}}
end;
handle_event(_Event, StateName, StateData) ->
{next_state, StateName, StateData}.
%%----------------------------------------------------------------------
%% Func: handle_sync_event/4
%% Returns: {next_state, NextStateName, NextStateData} |
%% {next_state, NextStateName, NextStateData, Timeout} |
%% {reply, Reply, NextStateName, NextStateData} |
%% {reply, Reply, NextStateName, NextStateData, Timeout} |
%% {stop, Reason, NewStateData} |
%% {stop, Reason, Reply, NewStateData}
%%----------------------------------------------------------------------
handle_sync_event({send, Packet}, _From, StateName,
StateData) ->
Packet2 = iolist_to_binary(Packet),
Output = StateData#state.output ++ [Packet2],
Reply = ok,
{reply, Reply, StateName,
StateData#state{output = Output}};
handle_sync_event(stop, _From, _StateName, StateData) ->
Reply = ok, {stop, normal, Reply, StateData};
handle_sync_event({http_put, Key, NewKey, Packet},
_From, StateName, StateData) ->
Allow = case StateData#state.key of
<<"">> -> true;
OldKey ->
NextKey = jlib:encode_base64((p1_sha:sha1(Key))),
if OldKey == NextKey -> true;
true -> false
end
end,
if Allow ->
case StateData#state.waiting_input of
false ->
Input = <<(StateData#state.input)/binary, Packet/binary>>,
Reply = ok,
{reply, Reply, StateName,
StateData#state{input = Input, key = NewKey}};
{Receiver, _Tag} ->
Receiver !
{tcp, StateData#state.socket, iolist_to_binary(Packet)},
cancel_timer(StateData#state.timer),
Timer =
erlang:start_timer(StateData#state.http_poll_timeout,
self(), []),
Reply = ok,
{reply, Reply, StateName,
StateData#state{waiting_input = false,
last_receiver = Receiver, key = NewKey,
timer = Timer}}
end;
true ->
Reply = {error, bad_key},
{reply, Reply, StateName, StateData}
end;
handle_sync_event(http_get, _From, StateName,
StateData) ->
Reply = {ok, StateData#state.output},
{reply, Reply, StateName,
StateData#state{output = []}};
handle_sync_event(_Event, _From, StateName,
StateData) ->
Reply = ok, {reply, Reply, StateName, StateData}.
code_change(_OldVsn, StateName, StateData, _Extra) ->
{ok, StateName, StateData}.
%%----------------------------------------------------------------------
%% Func: handle_info/3
%% Returns: {next_state, NextStateName, NextStateData} |
%% {next_state, NextStateName, NextStateData, Timeout} |
%% {stop, Reason, NewStateData}
%%----------------------------------------------------------------------
handle_info({timeout, Timer, _}, _StateName,
#state{timer = Timer} = StateData) ->
{stop, normal, StateData};
handle_info(_, StateName, StateData) ->
{next_state, StateName, StateData}.
%%----------------------------------------------------------------------
%% Func: terminate/3
%% Purpose: Shutdown the fsm
%% Returns: any
%%----------------------------------------------------------------------
terminate(_Reason, _StateName, StateData) ->
mnesia:transaction(
fun() ->
mnesia:delete({http_poll, StateData#state.id})
end),
case StateData#state.waiting_input of
false ->
case StateData#state.last_receiver of
undefined -> ok;
Receiver ->
Receiver ! {tcp_closed, StateData#state.socket}
end;
{Receiver, _Tag} ->
Receiver ! {tcp_closed, StateData#state.socket}
end,
catch resend_messages(StateData#state.output),
ok.
%%%----------------------------------------------------------------------
%%% Internal functions
%%%----------------------------------------------------------------------
http_put(ID, Key, NewKey, Packet) ->
case mnesia:dirty_read({http_poll, ID}) of
[] ->
{error, not_exists};
[#http_poll{pid = FsmRef}] ->
gen_fsm:sync_send_all_state_event(
FsmRef, {http_put, Key, NewKey, Packet})
end.
http_get(ID) ->
case mnesia:dirty_read({http_poll, ID}) of
[] ->
{error, not_exists};
[#http_poll{pid = FsmRef}] ->
gen_fsm:sync_send_all_state_event(FsmRef, http_get)
end.
parse_request(Data) ->
Comma = str:chr(Data, $,),
Header = str:substr(Data, 1, Comma - 1),
Packet = str:substr(Data, Comma + 1, byte_size(Data)),
{ID, Key, NewKey} = case str:tokens(Header, <<";">>) of
[ID1] -> {ID1, <<"">>, <<"">>};
[ID1, Key1] -> {ID1, Key1, Key1};
[ID1, Key1, NewKey1] -> {ID1, Key1, NewKey1}
end,
{ok, ID, Key, NewKey, Packet}.
cancel_timer(Timer) ->
erlang:cancel_timer(Timer),
receive {timeout, Timer, _} -> ok after 0 -> ok end.
%% Resend the polled messages
resend_messages(Messages) ->
%% This function is used to resend messages that have been polled but not
%% delivered.
lists:foreach(fun (Packet) -> resend_message(Packet)
end,
Messages).
resend_message(Packet) ->
#xmlel{name = Name} = ParsedPacket =
xml_stream:parse_element(Packet),
if Name == <<"iq">>;
Name == <<"message">>;
Name == <<"presence">> ->
From = get_jid(<<"from">>, ParsedPacket),
To = get_jid(<<"to">>, ParsedPacket),
?DEBUG("Resend ~p ~p ~p~n", [From, To, ParsedPacket]),
ejabberd_router:route(From, To, ParsedPacket);
true -> ok
end.
%% Type can be "from" or "to"
%% Parsed packet is a parsed Jabber packet.
get_jid(Type, ParsedPacket) ->
case xml:get_tag_attr(Type, ParsedPacket) of
{value, StringJid} -> jlib:string_to_jid(StringJid);
false -> jlib:make_jid(<<"">>, <<"">>, <<"">>)
end.

8
src/ejabberd_socket.erl
View File

@ -50,16 +50,14 @@
-include("logger.hrl").
-include("jlib.hrl").
-type sockmod() :: ejabberd_http_poll |
ejabberd_http_bind |
-type sockmod() :: ejabberd_http_bind |
ejabberd_http_ws |
gen_tcp | p1_tls | ezlib.
-type receiver() :: pid () | atom().
-type socket() :: pid() | inet:socket() |
p1_tls:tls_socket() |
ezlib:zlib_socket() |
ejabberd_http_bind:bind_socket() |
ejabberd_http_poll:poll_socket().
ejabberd_http_bind:bind_socket().
-record(socket_state, {sockmod = gen_tcp :: sockmod(),
socket = self() :: socket(),
@ -192,7 +190,7 @@ send(SocketData, Data) ->
%% Can only be called when in c2s StateData#state.xml_socket is true
%% This function is used for HTTP bind
%% sockmod=ejabberd_http_poll|ejabberd_http_bind or any custom module
%% sockmod=ejabberd_http_ws|ejabberd_http_bind or any custom module
-spec send_xml(socket_state(), xmlel()) -> any().
send_xml(SocketData, Data) ->

11
src/ejabberd_sup.erl
View File

@ -144,14 +144,6 @@ init([]) ->
infinity,
supervisor,
[ejabberd_tmp_sup]},
HTTPPollSupervisor =
{ejabberd_http_poll_sup,
{ejabberd_tmp_sup, start_link,
[ejabberd_http_poll_sup, ejabberd_http_poll]},
permanent,
infinity,
supervisor,
[ejabberd_tmp_sup]},
FrontendSocketSupervisor =
{ejabberd_frontend_socket_sup,
{ejabberd_tmp_sup, start_link,
@ -183,9 +175,6 @@ init([]) ->
S2SOutSupervisor,
ServiceSupervisor,
HTTPSupervisor,
HTTPPollSupervisor,
IQSupervisor,
FrontendSocketSupervisor,
Listener]}}.

5
src/ejabberd_web_admin.erl
View File

@ -1549,9 +1549,7 @@ user_info(User, Server, Query, Lang) ->
c2s_compressed_tls ->
<<"tls+zlib">>;
http_bind ->
<<"http-bind">>;
http_poll ->
<<"http-poll">>
<<"http-bind">>
end,
<<" (", ConnS/binary,
"://",
@ -2879,4 +2877,3 @@ make_menu_item(item, 3, URI, Name, Lang) ->
%%%==================================
%%% vim: set foldmethod=marker foldmarker=%%%%,%%%=: