Chapril/xmpp.chapril.org-ejabberd
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SIP support

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Conflicts:
	configure
	configure.ac
	doc/guide.tex
This commit is contained in:
Evgeniy Khramtsov 2014-04-30 19:20:38 +04:00
parent ec6c58a21c
commit 02e0649d18
10 changed files with 959 additions and 19 deletions
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50
configure vendored
View File

@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.67 for ejabberd community.
# Generated by GNU Autoconf 2.67 for ejabberd community 13.12-100-gec6c58a.
#
# Report bugs to <ejabberd@process-one.net>.
#
@ -552,8 +552,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='ejabberd'
PACKAGE_TARNAME='ejabberd'
PACKAGE_VERSION='community'
PACKAGE_STRING='ejabberd community'
PACKAGE_VERSION='community 13.12-100-gec6c58a'
PACKAGE_STRING='ejabberd community 13.12-100-gec6c58a'
PACKAGE_BUGREPORT='ejabberd@process-one.net'
PACKAGE_URL=''
@ -561,6 +561,7 @@ ac_default_prefix=/
ac_subst_vars='LTLIBOBJS
LIBOBJS
tools
sip
lager
http
debug
@ -672,6 +673,7 @@ enable_iconv
enable_debug
enable_http
enable_lager
enable_sip
enable_user
'
ac_precious_vars='build_alias
@ -1222,7 +1224,7 @@ if test "$ac_init_help" = "long"; then
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
\`configure' configures ejabberd community to adapt to many kinds of systems.
\`configure' configures ejabberd community 13.12-100-gec6c58a to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1283,7 +1285,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of ejabberd community:";;
short | recursive ) echo "Configuration of ejabberd community 13.12-100-gec6c58a:";;
esac
cat <<\_ACEOF
@ -1309,8 +1311,8 @@ Optional Features:
--enable-pgsql --enable-pam --enable-zlib
--enable-stun --enable-riak --enable-json
--enable-iconv --enable-debug --enable-http
--enable-lager --enable-tools (useful for Dialyzer
checks, default: no)
--enable-lager --enable-sip --enable-tools (useful
for Dialyzer checks, default: no)
--enable-tools build development tools (default: no)
--enable-nif replace some functions with C equivalents. Requires
Erlang R13B04 or higher (default: no)
@ -1327,6 +1329,7 @@ Optional Features:
--enable-http build external HTTP libraries ('ibrowse' and
'lhttpc', default: no)
--enable-lager enable lager support (default: yes)
--enable-sip enable SIP support (default: no)
--enable-user[[[=USER]]]
allow this system user to start ejabberd (default:
no)
@ -1407,7 +1410,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
ejabberd configure community
ejabberd configure community 13.12-100-gec6c58a
generated by GNU Autoconf 2.67
Copyright (C) 2010 Free Software Foundation, Inc.
@ -1466,7 +1469,7 @@ cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by ejabberd $as_me community, which was
It was created by ejabberd $as_me community 13.12-100-gec6c58a, which was
generated by GNU Autoconf 2.67. Invocation command line was
$ $0 $@
@ -2526,6 +2529,10 @@ parse(Version) ->
less_or_equal([], []) ->
true;
less_or_equal([], _Any) ->
true;
less_or_equal(_Any, []) ->
false;
less_or_equal([Left| Rl], [Right| Rr]) ->
case {Left < Right, Left == Right} of
{true, _} ->
@ -2608,6 +2615,10 @@ parse(Version) ->
less_or_equal([], []) ->
true;
less_or_equal([], _Any) ->
true;
less_or_equal(_Any, []) ->
false;
less_or_equal([Left| Rl], [Right| Rr]) ->
case {Left < Right, Left == Right} of
{true, _} ->
@ -2858,8 +2869,8 @@ fi
# Check whether --enable-all was given.
if test "${enable_all+set}" = set; then :
enableval=$enable_all; case "${enableval}" in
yes) nif=true odbc=true mysql=true pgsql=true pam=true zlib=true stun=true riak=true json=true iconv=true debug=true http=true lager=true tools=true ;;
no) nif=false odbc=false mysql=false pgsql=false pam=false zlib=false stun=false riak=false json=false iconv=false debug=false http=false lager=false tools=false ;;
yes) nif=true odbc=true mysql=true pgsql=true pam=true zlib=true stun=true riak=true json=true iconv=true debug=true http=true lager=true sip=true tools=true ;;
no) nif=false odbc=false mysql=false pgsql=false pam=false zlib=false stun=false riak=false json=false iconv=false debug=false http=false lager=false sip=false tools=false ;;
*) as_fn_error $? "bad value ${enableval} for --enable-all" "$LINENO" 5 ;;
esac
fi
@ -3021,6 +3032,18 @@ else
fi
# Check whether --enable-sip was given.
if test "${enable_sip+set}" = set; then :
enableval=$enable_sip; case "${enableval}" in
yes) sip=true ;;
no) sip=false ;;
*) as_fn_error $? "bad value ${enableval} for --enable-sip" "$LINENO" 5 ;;
esac
else
if test "x$sip" = "x"; then sip=false; fi
fi
ac_config_files="$ac_config_files Makefile vars.config src/ejabberd.app.src"
@ -3853,6 +3876,7 @@ fi
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
@ -4396,7 +4420,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by ejabberd $as_me community, which was
This file was extended by ejabberd $as_me community 13.12-100-gec6c58a, which was
generated by GNU Autoconf 2.67. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@ -4449,7 +4473,7 @@ _ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
ejabberd config.status community
ejabberd config.status community 13.12-100-gec6c58a
configured by $0, generated by GNU Autoconf 2.67,
with options \\"\$ac_cs_config\\"

15
configure.ac
View File

@ -106,10 +106,10 @@ AC_ARG_ENABLE(mssql,
esac],[db_type=generic])
AC_ARG_ENABLE(all,
[AC_HELP_STRING([--enable-all], [same as --enable-nif --enable-odbc --enable-mysql --enable-pgsql --enable-pam --enable-zlib --enable-stun --enable-riak --enable-json --enable-iconv --enable-debug --enable-http --enable-lager --enable-tools (useful for Dialyzer checks, default: no)])],
[AC_HELP_STRING([--enable-all], [same as --enable-nif --enable-odbc --enable-mysql --enable-pgsql --enable-pam --enable-zlib --enable-stun --enable-riak --enable-json --enable-iconv --enable-debug --enable-http --enable-lager --enable-sip --enable-tools (useful for Dialyzer checks, default: no)])],
[case "${enableval}" in
yes) nif=true odbc=true mysql=true pgsql=true pam=true zlib=true stun=true riak=true json=true iconv=true debug=true http=true lager=true tools=true ;;
no) nif=false odbc=false mysql=false pgsql=false pam=false zlib=false stun=false riak=false json=false iconv=false debug=false http=false lager=false tools=false ;;
yes) nif=true odbc=true mysql=true pgsql=true pam=true zlib=true stun=true riak=true json=true iconv=true debug=true http=true lager=true sip=true tools=true ;;
no) nif=false odbc=false mysql=false pgsql=false pam=false zlib=false stun=false riak=false json=false iconv=false debug=false http=false lager=false sip=false tools=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-all) ;;
esac],[])
@ -217,6 +217,14 @@ AC_ARG_ENABLE(lager,
*) AC_MSG_ERROR(bad value ${enableval} for --enable-lager) ;;
esac],[if test "x$lager" = "x"; then lager=true; fi])
AC_ARG_ENABLE(sip,
[AC_HELP_STRING([--enable-sip], [enable SIP support (default: no)])],
[case "${enableval}" in
yes) sip=true ;;
no) sip=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-sip) ;;
esac],[if test "x$sip" = "x"; then sip=false; fi])
AC_CONFIG_FILES([Makefile
vars.config
src/ejabberd.app.src])
@ -277,6 +285,7 @@ AC_SUBST(iconv)
AC_SUBST(debug)
AC_SUBST(http)
AC_SUBST(lager)
AC_SUBST(sip)
AC_SUBST(tools)
AC_OUTPUT

109
doc/guide.tex
View File

@ -93,6 +93,7 @@
\newcommand{\modsharedroster}{\module{mod\_shared\_roster}}
\newcommand{\modsharedrosterldap}{\module{mod\_shared\_roster\_ldap}}
\newcommand{\modsic}{\module{mod\_sic}}
\newcommand{\modsip}{\module{mod\_sip}}
\newcommand{\modstats}{\module{mod\_stats}}
\newcommand{\modtime}{\module{mod\_time}}
\newcommand{\modvcard}{\module{mod\_vcard}}
@ -396,6 +397,9 @@ Some options that you may be interested in modifying:
\titem{--enable-zlib}
Enable Stream Compression (XEP-0138) using zlib.
\titem{--enable-sip}
Enable SIP support (see section \ref{sip}).
\titem{--enable-stun}
Enable STUN support (see section \ref{stun}).
@ -883,6 +887,10 @@ The available modules, their purpose and the options allowed by each one are:
(as defined in the Jabber Component Protocol (\xepref{0114}).\\
Options: \texttt{access}, \texttt{hosts}, \texttt{max\_fsm\_queue},
\texttt{service\_check\_from}, \texttt{shaper\_rule}
\titem{\texttt{ejabberd\_sip}}
Handles SIP requests as defined in
\footahref{http://tools.ietf.org/html/rfc3261}{RFC 3261}.\\
Options: \texttt{certfile}, \texttt{tls}
\titem{\texttt{ejabberd\_stun}}
Handles STUN Binding requests as defined in
\footahref{http://tools.ietf.org/html/rfc5389}{RFC 5389}.\\
@ -1961,7 +1969,7 @@ listen:
\ejabberd{} is able to act as a stand-alone STUN server
(\footahref{http://tools.ietf.org/html/rfc5389}{RFC 5389}). Currently only Binding usage
is supported. In that role \ejabberd{} helps clients with Jingle ICE (\xepref{0176}) support to discover their external addresses and ports.
is supported. In that role \ejabberd{} helps clients with ICE (\footahref{http://tools.ietf.org/html/rfc5245}{RFC 5245}) or Jingle ICE (\xepref{0176}) support to discover their external addresses and ports.
You should configure \term{ejabberd\_stun} listening module as described in \ref{listened} section.
If \option{certfile} option is defined, \ejabberd{} multiplexes TCP and
@ -2001,6 +2009,61 @@ _stun._tcp IN SRV 0 0 3478 stun.example.com.
_stuns._tcp IN SRV 0 0 5349 stun.example.com.
\end{verbatim}
\makesubsection{sip}{SIP}
\ind{options!sip}\ind{sip}
\ejabberd{} has built-in SIP support. In order to activate it you need to add
listeners for it, configure DNS properly and enable \modsip{} for
the desired virtual host.
To add a listener you should configure \term{ejabberd\_sip} listening module as
described in \ref{listened} section. If option \option{tls} is specified, option
\option{certfile} must be specified as well, otherwise incoming TLS connections would fail.
Example configuration with standard ports
(as per \footahref{http://tools.ietf.org/html/rfc3261}{RFC 3261}):
\begin{verbatim}
listen:
...
-
port: 5060
transport: udp
module: ejabberd_sip
-
port: 5060
module: ejabberd_sip
-
port: 5061
module: ejabberd_sip
tls: true
certfile: "/etc/ejabberd/server.pem"
...
\end{verbatim}
Note that there is no StartTLS support in SIP and \footahref{http://en.wikipedia.org/wiki/Server\_Name\_Indication}{SNI} support is somewhat tricky, so for TLS you have to configure
different virtual hosts on different ports if you have different certificate files for them.
Next you need to configure DNS SIP records for your virtual domains.
Refer to \footahref{http://tools.ietf.org/html/rfc3263}{RFC 3263} for the detailed explanation.
Simply put, you should add NAPTR and SRV records for your domains.
Skip NAPTR configuration if your DNS provider doesn't support this type of records.
It's not fatal, however, highly recommended.
Example configuration of NAPTR records:
\begin{verbatim}
example.com IN NAPTR 10 0 "s" "SIPS+D2T" "" _sips._tcp.example.com.
example.com IN NAPTR 20 0 "s" "SIP+D2T" "" _sip._tcp.example.com.
example.com IN NAPTR 30 0 "s" "SIP+D2U" "" _sip._udp.example.com.
\end{verbatim}
Example configuration of SRV records with standard ports
(as per \footahref{http://tools.ietf.org/html/rfc3261}{RFC 3261}):
\begin{verbatim}
_sip._udp IN SRV 0 0 5060 sip.example.com.
_sip._tcp IN SRV 0 0 5060 sip.example.com.
_sips._tcp IN SRV 0 0 5061 sip.example.com.
\end{verbatim}
\makesubsection{includeconfigfile}{Include Additional Configuration Files}
\ind{options!includeconfigfile}\ind{includeconfigfile}
@ -2578,6 +2641,7 @@ The following table lists all modules included in \ejabberd{}.
\hline \ahrefloc{modsharedroster}{\modsharedroster{}} & Shared roster management & \modroster{} \\
\hline \ahrefloc{modsharedrosterldap}{\modsharedrosterldap{}} & LDAP Shared roster management & \modroster{} \\
\hline \ahrefloc{modsic}{\modsic{}} & Server IP Check (\xepref{0279}) & \\
\hline \ahrefloc{modsip}{\modsip{}} & SIP Registrar/Proxy (\footahref{http://tools.ietf.org/html/rfc3261}{RFC 3261}) & \term{ejabberd\_sip} \\
\hline \ahrefloc{modstats}{\modstats{}} & Statistics Gathering (\xepref{0039}) & \\
\hline \ahrefloc{modtime}{\modtime{}} & Entity Time (\xepref{0202}) & \\
\hline \ahrefloc{modvcard}{\modvcard{}} & vcard-temp (\xepref{0054}) & \\
@ -4618,6 +4682,49 @@ Options:
\iqdiscitem{\ns{urn:xmpp:sic:0}}
\end{description}
\makesubsection{modsip}{\modsip{}}
\ind{modules!\modsip{}}
This module adds SIP proxy/registrar support for the corresponding virtual host.
Note that it is not enough to just load this module only. You should also configure
listeners and DNS records properly. See section \ref{sip} for the full explanation.
Example configuration:
\begin{verbatim}
modules:
...
mod_sip: {}
...
\end{verbatim}
Options:
\begin{description}
\titem{via: [\{type: Type, host: Host, port: Port\}]}\ind{options!via}With
this option for every \term{Type} you can specify \term{Host} and \term{Port}
to set in \term{Via} header of outgoing SIP messages, where \term{Type} can be
\term{udp}, \term{tcp} or \term{tls}. \term{Host} is a string and \term{Port} is
a non negative integer. This is useful if you're running your server in a non-standard
network topology. Example configuration:
\begin{verbatim}
modules:
...
mod_sip:
via:
-
type: tls
host: "sip-tls.example.com"
port: 5061
-
type: tcp
host: "sip-tcp.example.com"
port: 5060
-
type: udp
host: "sip-udp.example.com"
port: 5060
...
\end{verbatim}
\end{description}
\makesubsection{modstats}{\modstats{}}
\ind{modules!\modstats{}}\ind{protocols!XEP-0039: Statistics Gathering}\ind{statistics}

1
doc/introduction.tex
View File

@ -128,6 +128,7 @@ Moreover, \ejabberd{} comes with a wide range of other state-of-the-art features
\item \txepref{0060}{Publish-Subscribe} component with support for \txepref{0163}{Personal Eventing via Pubsub}.
\item Support for web clients: \txepref{0025}{HTTP Polling} and \txepref{0206}{HTTP Binding (BOSH)} services.
\item IRC transport.
\item SIP support.
\item Component support: interface with networks such as AIM, ICQ and MSN installing special tranports.
\end{itemize}
\end{itemize}

12
rebar.config.script
View File

@ -43,7 +43,13 @@ HiPE = case lists:keysearch(hipe, 1, Cfg) of
end,
Includes = [{i, "include"},
{i, filename:join(["deps", "p1_xml", "include"])}],
{i, filename:join(["deps", "p1_xml", "include"])}|
lists:flatmap(
fun({sip, true}) ->
[{i, filename:join(["deps", "esip", "include"])}];
(_) ->
[]
end, Cfg)],
SrcDirs = lists:foldl(
fun({tools, true}, Acc) ->
@ -97,6 +103,8 @@ CfgDeps = lists:flatmap(
({http, true}) ->
[{ibrowse, ".*", {git, "git://github.com/cmullaparthi/ibrowse"}},
{lhttpc, ".*", {git, "git://github.com/esl/lhttpc"}}];
({sip, true}) ->
[{esip, ".*", {git, "git://github.com/processone/p1_sip"}}];
({lager, true}) ->
[{lager, ".*", {git, "git://github.com/basho/lager"}}];
({lager, false}) ->
@ -112,6 +120,8 @@ CfgPostHooks = lists:flatmap(
[ConfigureCmd("p1_zlib", "")];
({iconv, true}) ->
[ConfigureCmd("p1_iconv", "")];
({sip, true}) ->
[ConfigureCmd("esip", "")];
(_) ->
[]
end, Cfg),

36
src/ejabberd_listener.erl
View File

@ -151,6 +151,19 @@ init_udp(PortIP, Module, Opts, SockOpts, Port, IPS) ->
{ok, Socket} ->
%% Inform my parent that this port was opened succesfully
proc_lib:init_ack({ok, self()}),
case erlang:function_exported(Module, udp_init, 2) of
true ->
case catch Module:udp_init(Socket, Opts) of
{'EXIT', _} = Err ->
?ERROR_MSG("failed to process callback function "
"~p:~s(~p, ~p): ~p",
[Module, udp_init, Socket, Opts, Err]);
_ ->
ok
end;
false ->
ok
end,
udp_recv(Socket, Module, Opts);
{error, Reason} ->
socket_error(Reason, PortIP, Module, SockOpts, Port, IPS)
@ -160,6 +173,19 @@ init_tcp(PortIP, Module, Opts, SockOpts, Port, IPS) ->
ListenSocket = listen_tcp(PortIP, Module, SockOpts, Port, IPS),
%% Inform my parent that this port was opened succesfully
proc_lib:init_ack({ok, self()}),
case erlang:function_exported(Module, tcp_init, 2) of
true ->
case catch Module:tcp_init(ListenSocket, Opts) of
{'EXIT', _} = Err ->
?ERROR_MSG("failed to process callback function "
"~p:~s(~p, ~p): ~p",
[Module, tcp_init, ListenSocket, Opts, Err]);
_ ->
ok
end;
false ->
ok
end,
%% And now start accepting connection attempts
accept(ListenSocket, Module, Opts).
@ -342,6 +368,7 @@ start_listener2(Port, Module, Opts) ->
%% But it doesn't hurt to attempt to start it for any listener.
%% So, it's normal (and harmless) that in most cases this call returns: {error, {already_started, pid()}}
maybe_start_stun(Module),
maybe_start_sip(Module),
start_module_sup(Port, Module),
start_listener_sup(Port, Module, Opts).
@ -463,6 +490,11 @@ maybe_start_stun(ejabberd_stun) ->
maybe_start_stun(_) ->
ok.
maybe_start_sip(esip_socket) ->
ejabberd:start_app(esip);
maybe_start_sip(_) ->
ok.
%%%
%%% Check options
%%%
@ -642,7 +674,11 @@ prepare_ip(IP) when is_binary(IP) ->
prepare_mod(ejabberd_stun) ->
prepare_mod(stun);
prepare_mod(ejabberd_sip) ->
prepare_mod(sip);
prepare_mod(stun) ->
stun;
prepare_mod(sip) ->
esip_socket;
prepare_mod(Mod) when is_atom(Mod) ->
Mod.

404
src/mod_sip.erl Normal file
View File

@ -0,0 +1,404 @@
%%%-------------------------------------------------------------------
%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% @copyright (C) 2014, Evgeny Khramtsov
%%% @doc
%%%
%%% @end
%%% Created : 21 Apr 2014 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%-------------------------------------------------------------------
-module(mod_sip).
-behaviour(gen_mod).
-behaviour(esip).
%% API
-export([start/2, stop/1, prepare_request/1, make_response/2,
add_certfile/2, add_via/3]).
%% esip_callbacks
-export([data_in/2, data_out/2, message_in/2, message_out/2,
request/2, request/3, response/2, locate/1]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("esip.hrl").
-record(sip_session, {us = {<<"">>, <<"">>} :: {binary(), binary()},
socket = #sip_socket{},
timestamp = now() :: erlang:timestamp(),
tref = make_ref() :: reference(),
expires = 0 :: non_neg_integer()}).
%%%===================================================================
%%% API
%%%===================================================================
start(_Host, _Opts) ->
ejabberd:start_app(esip),
esip:set_config_value(max_server_transactions, 10000),
esip:set_config_value(max_client_transactions, 10000),
esip:set_config_value(software, <<"ejabberd ", (?VERSION)/binary>>),
esip:set_config_value(module, ?MODULE),
Spec = {mod_sip_registrar, {mod_sip_registrar, start_link, []},
transient, 2000, worker, [mod_sip_registrar]},
TmpSupSpec = {mod_sip_proxy_sup,
{ejabberd_tmp_sup, start_link,
[mod_sip_proxy_sup, mod_sip_proxy]},
permanent, infinity, supervisor, [ejabberd_tmp_sup]},
supervisor:start_child(ejabberd_sup, Spec),
supervisor:start_child(ejabberd_sup, TmpSupSpec),
ok.
stop(_Host) ->
ok.
data_in(Data, #sip_socket{type = Transport,
addr = {MyIP, MyPort},
peer = {PeerIP, PeerPort}}) ->
?DEBUG(
"SIP [~p/in] ~s:~p -> ~s:~p:~n~s",
[Transport, inet_parse:ntoa(PeerIP), PeerPort,
inet_parse:ntoa(MyIP), MyPort, Data]).
data_out(Data, #sip_socket{type = Transport,
addr = {MyIP, MyPort},
peer = {PeerIP, PeerPort}}) ->
?DEBUG(
"SIP [~p/out] ~s:~p -> ~s:~p:~n~s",
[Transport, inet_parse:ntoa(MyIP), MyPort,
inet_parse:ntoa(PeerIP), PeerPort, Data]).
message_in(#sip{type = request, method = M} = Req, SIPSock)
when M /= <<"ACK">>, M /= <<"CANCEL">> ->
case action(Req, SIPSock) of
{relay, _LServer, _Opts} ->
ok;
Action ->
request(Req, SIPSock, undefined, Action)
end;
message_in(_, _) ->
ok.
message_out(_, _) ->
ok.
response(Resp, SIPSock) ->
case action(Resp, SIPSock) of
{relay, LServer, Opts} ->
case esip:split_hdrs('via', Resp#sip.hdrs) of
{[_], _} ->
ok;
{[_MyVia|Vias], TailHdrs} ->
%% TODO: check if MyVia is really my Via
NewResp = Resp#sip{hdrs = [{'via', Vias}|TailHdrs]},
case proplists:get_value(socket, Opts) of
undefined ->
case esip:connect(NewResp,
add_certfile(LServer, Opts)) of
{ok, SIPSockOut} ->
esip:send(SIPSockOut, NewResp);
{error, _} ->
ok
end;
SIPSockOut ->
esip:send(SIPSockOut, NewResp)
end
end;
_ ->
ok
end.
request(#sip{method = <<"ACK">>} = Req, SIPSock) ->
case action(Req, SIPSock) of
{relay, LServer, Opts} ->
Req1 = prepare_request(Req),
case esip:connect(Req1, add_certfile(LServer, Opts)) of
{ok, SIPSockOut} ->
Req2 = add_via(SIPSockOut, LServer, Req1),
esip:send(SIPSockOut, Req2);
{error, _} = Err ->
Err
end;
_ ->
pass
end;
request(#sip{method = <<"CANCEL">>} = Req, SIPSock) ->
case action(Req, SIPSock) of
loop ->
make_response(Req, #sip{status = 483, type = response});
{unsupported, Require} ->
make_response(Req, #sip{status = 420,
type = response,
hdrs = [{'unsupported',
Require}]});
{relay, LServer, Opts} ->
Req1 = prepare_request(Req),
case esip:connect(Req1, add_certfile(LServer, Opts)) of
{ok, SIPSockOut} ->
Req2 = add_via(SIPSockOut, LServer, Req1),
esip:send(SIPSockOut, Req2);
{error, _} = Err ->
Err
end,
pass;
_ ->
pass
end.
request(Req, SIPSock, TrID) ->
request(Req, SIPSock, TrID, action(Req, SIPSock)).
request(Req, SIPSock, TrID, Action) ->
case Action of
to_me ->
process(Req, SIPSock);
register ->
mod_sip_registrar:request(Req, SIPSock);
loop ->
make_response(Req, #sip{status = 483, type = response});
{unsupported, Require} ->
make_response(Req, #sip{status = 420,
type = response,
hdrs = [{'unsupported',
Require}]});
{relay, LServer, Opts} ->
case mod_sip_proxy:start(LServer, Opts) of
{ok, Pid} ->
mod_sip_proxy:route(Req, SIPSock, TrID, Pid),
{mod_sip_proxy, route, [Pid]};
Err ->
?INFO_MSG("failed to proxy request ~p: ~p", [Req, Err]),
Err
end;
{proxy_auth, Host} ->
make_response(
Req,
#sip{status = 407,
type = response,
hdrs = [{'proxy-authenticate',
make_auth_hdr(Host)}]});
{auth, Host} ->
make_response(
Req,
#sip{status = 401,
type = response,
hdrs = [{'www-authenticate',
make_auth_hdr(Host)}]});
deny ->
make_response(Req, #sip{status = 403,
type = response});
not_found ->
make_response(Req, #sip{status = 480,
type = response})
end.
locate(_SIPMsg) ->
ok.
find(#uri{user = User, host = Host}) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Host),
case mod_sip_registrar:find_session(
LUser, LServer) of
{ok, #sip_session{socket = Sock}} ->
{relay, LServer, [{socket, Sock}]};
error ->
not_found
end.
%%%===================================================================
%%% Internal functions
%%%===================================================================
action(#sip{type = response, hdrs = Hdrs}, _SIPSock) ->
{_, ToURI, _} = esip:get_hdr('to', Hdrs),
{_, FromURI, _} = esip:get_hdr('from', Hdrs),
case at_my_host(FromURI) of
true ->
case at_my_host(ToURI) of
true ->
find(ToURI);
false ->
LServer = jlib:nameprep(FromURI#uri.host),
{relay, LServer, []}
end;
false ->
case at_my_host(ToURI) of
true ->
find(ToURI);
false ->
pass
end
end;
action(#sip{method = <<"REGISTER">>, type = request, hdrs = Hdrs,
uri = #uri{user = <<"">>} = URI} = Req, SIPSock) ->
case at_my_host(URI) of
true ->
case esip:get_hdrs('require', Hdrs) of
[_|_] = Require ->
{unsupported, Require};
_ ->
{_, ToURI, _} = esip:get_hdr('to', Hdrs),
case at_my_host(ToURI) of
true ->
case check_auth(Req, 'authorization', SIPSock) of
true ->
register;
false ->
{auth, ToURI#uri.host}
end;
false ->
deny
end
end;
false ->
deny
end;
action(#sip{method = Method, hdrs = Hdrs, type = request} = Req, SIPSock) ->
case esip:get_hdr('max-forwards', Hdrs) of
0 when Method == <<"OPTIONS">> ->
to_me;
0 ->
loop;
_ ->
case esip:get_hdrs('proxy-require', Hdrs) of
[_|_] = Require ->
{unsupported, Require};
_ ->
{_, ToURI, _} = esip:get_hdr('to', Hdrs),
{_, FromURI, _} = esip:get_hdr('from', Hdrs),
case at_my_host(FromURI) of
true ->
case check_auth(Req, 'proxy-authorization', SIPSock) of
true ->
case at_my_host(ToURI) of
true ->
find(ToURI);
false ->
LServer = jlib:nameprep(FromURI#uri.host),
{relay, LServer, []}
end;
false ->
{proxy_auth, FromURI#uri.host}
end;
false ->
case at_my_host(ToURI) of
true ->
find(ToURI);
false ->
deny
end
end
end
end.
check_auth(#sip{method = <<"CANCEL">>}, _, _SIPSock) ->
true;
check_auth(#sip{method = Method, hdrs = Hdrs, body = Body}, AuthHdr, _SIPSock) ->
Issuer = case AuthHdr of
'authorization' ->
to;
'proxy-authorization' ->
from
end,
{_, #uri{user = User, host = Host}, _} = esip:get_hdr(Issuer, Hdrs),
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Host),
case lists:filter(
fun({_, Params}) ->
Username = esip:get_param(<<"username">>, Params),
Realm = esip:get_param(<<"realm">>, Params),
(LUser == esip:unquote(Username))
and (LServer == esip:unquote(Realm))
end, esip:get_hdrs(AuthHdr, Hdrs)) of
[Auth|_] ->
case ejabberd_auth:get_password_s(LUser, LServer) of
<<"">> ->
false;
Password ->
esip:check_auth(Auth, Method, Body, Password)
end;
[] ->
false
end.
allow() ->
[<<"OPTIONS">>, <<"REGISTER">>].
process(#sip{method = <<"OPTIONS">>} = Req, _) ->
make_response(Req, #sip{type = response, status = 200,
hdrs = [{'allow', allow()}]});
process(#sip{method = <<"REGISTER">>} = Req, _) ->
make_response(Req, #sip{type = response, status = 400});
process(Req, _) ->
make_response(Req, #sip{type = response, status = 405,
hdrs = [{'allow', allow()}]}).
prepare_request(#sip{hdrs = Hdrs1} = Req) ->
MF = esip:get_hdr('max-forwards', Hdrs1),
Hdrs2 = esip:set_hdr('max-forwards', MF-1, Hdrs1),
Hdrs3 = lists:filter(
fun({'proxy-authorization', {_, Params}}) ->
Realm = esip:unquote(esip:get_param(<<"realm">>, Params)),
not is_my_host(jlib:nameprep(Realm));
(_) ->
true
end, Hdrs2),
Req#sip{hdrs = Hdrs3}.
make_auth_hdr(LServer) ->
Realm = jlib:nameprep(LServer),
{<<"Digest">>, [{<<"realm">>, esip:quote(Realm)},
{<<"qop">>, esip:quote(<<"auth">>)},
{<<"nonce">>, esip:quote(esip:make_hexstr(20))}]}.
make_response(Req, Resp) ->
esip:make_response(Req, Resp, esip:make_tag()).
at_my_host(#uri{host = Host}) ->
is_my_host(jlib:nameprep(Host)).
is_my_host(LServer) ->
gen_mod:is_loaded(LServer, ?MODULE).
add_certfile(LServer, Opts) ->
case ejabberd_config:get_option({domain_certfile, LServer},
fun iolist_to_binary/1) of
CertFile when is_binary(CertFile), CertFile /= <<"">> ->
[{certfile, CertFile}|Opts];
_ ->
Opts
end.
add_via(#sip_socket{type = Transport}, LServer, #sip{hdrs = Hdrs} = Req) ->
ConfiguredVias = get_configured_vias(LServer),
{ViaHost, ViaPort} = proplists:get_value(
Transport, ConfiguredVias, {LServer, undefined}),
ViaTransport = case Transport of
tls -> <<"TLS">>;
tcp -> <<"TCP">>;
udp -> <<"UDP">>
end,
Via = #via{transport = ViaTransport,
host = ViaHost,
port = ViaPort,
params = [{<<"branch">>, esip:make_branch()},
{<<"rport">>, <<"">>}]},
Req#sip{hdrs = [{'via', [Via]}|Hdrs]}.
get_configured_vias(LServer) ->
gen_mod:get_module_opt(
LServer, ?MODULE, via,
fun(L) ->
lists:map(
fun(Opts) ->
Type = proplists:get_value(type, Opts),
Host = proplists:get_value(host, Opts),
Port = proplists:get_value(port, Opts),
true = (Type == tcp) or (Type == tls) or (Type == udp),
true = is_binary(Host) and (Host /= <<"">>),
true = (is_integer(Port)
and (Port > 0) and (Port < 65536))
or (Port == undefined),
{Type, {Host, Port}}
end, L)
end, []).

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@ -0,0 +1,152 @@
%%%-------------------------------------------------------------------
%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% @copyright (C) 2014, Evgeny Khramtsov
%%% @doc
%%%
%%% @end
%%% Created : 21 Apr 2014 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%-------------------------------------------------------------------
-module(mod_sip_proxy).
-define(GEN_FSM, p1_fsm).
-behaviour(?GEN_FSM).
%% API
-export([start/2, start_link/2, route/4, route/5]).
%% gen_fsm callbacks
-export([init/1, wait_for_request/2, wait_for_response/2,
handle_event/3, handle_sync_event/4,
handle_info/3, terminate/3, code_change/4]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("esip.hrl").
-define(MAX_REDIRECTS, 5).
-record(state, {host = <<"">> :: binary(),
opts = [] :: [{certfile, binary()}],
orig_trid,
orig_req :: #sip{},
client_trid}).
%%%===================================================================
%%% API
%%%===================================================================
start(LServer, Opts) ->
supervisor:start_child(mod_sip_proxy_sup, [LServer, Opts]).
start_link(LServer, Opts) ->
?GEN_FSM:start_link(?MODULE, [LServer, Opts], []).
route(Resp, Req, _SIPSock, TrID, Pid) ->
?GEN_FSM:send_event(Pid, {Resp, Req, TrID}).
route(SIPMsg, _SIPSock, TrID, Pid) ->
?GEN_FSM:send_event(Pid, {SIPMsg, TrID}),
wait.
%%%===================================================================
%%% gen_fsm callbacks
%%%===================================================================
init([Host, Opts]) ->
{ok, wait_for_request, #state{opts = Opts, host = Host}}.
wait_for_request({#sip{type = request} = Req, TrID}, State) ->
Opts = mod_sip:add_certfile(State#state.host, State#state.opts),
Req1 = mod_sip:prepare_request(Req),
case connect(Req1, Opts) of
{ok, SIPSocket} ->
Req2 = mod_sip:add_via(SIPSocket, State#state.host, Req1),
case esip:request(SIPSocket, Req2, {?MODULE, route, [self()]}) of
{ok, ClientTrID} ->
{next_state, wait_for_response,
State#state{orig_trid = TrID,
orig_req = Req,
client_trid = ClientTrID}};
Err ->
{Status, Reason} = esip:error_status(Err),
esip:reply(TrID, mod_sip:make_response(
Req, #sip{type = response,
status = Status,
reason = Reason})),
{stop, normal, State}
end;
Err ->
{Status, Reason} = esip:error_status(Err),
esip:reply(TrID, mod_sip:make_response(
Req, #sip{type = response,
status = Status,
reason = Reason})),
{stop, normal, State}
end;
wait_for_request(_Event, State) ->
{next_state, wait_for_request, State}.
wait_for_response({#sip{method = <<"CANCEL">>, type = request}, _TrID}, State) ->
esip:cancel(State#state.client_trid),
{next_state, wait_for_response, State};
wait_for_response({Resp, _TrID}, State) ->
case Resp of
{error, _} ->
Req = State#state.orig_req,
{Status, Reason} = esip:error_status(Resp),
case Status of
408 when Req#sip.method /= <<"INVITE">> ->
%% Absorb useless 408. See RFC4320
esip:stop_transaction(State#state.orig_trid);
_ ->
ErrResp = mod_sip:make_response(
Req,
#sip{type = response,
status = Status,
reason = Reason}),
esip:reply(State#state.orig_trid, ErrResp)
end,
{stop, normal, State};
#sip{status = 100} ->
{next_state, wait_for_response, State};
#sip{status = Status} ->
case esip:split_hdrs('via', Resp#sip.hdrs) of
{[_], _} ->
{stop, normal, State};
{[_|Vias], NewHdrs} ->
esip:reply(State#state.orig_trid,
Resp#sip{hdrs = [{'via', Vias}|NewHdrs]}),
if Status < 200 ->
{next_state, wait_for_response, State};
true ->
{stop, normal, State}
end
end
end;
wait_for_response(_Event, State) ->
{next_state, wait_for_response, State}.
handle_event(_Event, StateName, State) ->
{next_state, StateName, State}.
handle_sync_event(_Event, _From, StateName, State) ->
Reply = ok,
{reply, Reply, StateName, State}.
handle_info(_Info, StateName, State) ->
{next_state, StateName, State}.
terminate(_Reason, _StateName, _State) ->
ok.
code_change(_OldVsn, StateName, State, _Extra) ->
{ok, StateName, State}.
%%%===================================================================
%%% Internal functions
%%%===================================================================
connect(Req, Opts) ->
case proplists:get_value(socket, Opts) of
undefined ->
esip:connect(Req, Opts);
#sip_socket{} = SIPSock ->
{ok, SIPSock}
end.

196
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@ -0,0 +1,196 @@
%%%-------------------------------------------------------------------
%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% @copyright (C) 2014, Evgeny Khramtsov
%%% @doc
%%%
%%% @end
%%% Created : 23 Apr 2014 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%-------------------------------------------------------------------
-module(mod_sip_registrar).
-define(GEN_SERVER, p1_server).
-behaviour(?GEN_SERVER).
%% API
-export([start_link/0, request/2, find_session/2]).
%% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
terminate/2, code_change/3]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("esip.hrl").
-record(sip_session, {us = {<<"">>, <<"">>} :: {binary(), binary()},
socket = #sip_socket{},
timestamp = now() :: erlang:timestamp(),
tref = make_ref() :: reference(),
expires = 0 :: non_neg_integer()}).
-record(state, {}).
%%%===================================================================
%%% API
%%%===================================================================
start_link() ->
?GEN_SERVER:start_link({local, ?MODULE}, ?MODULE, [], []).
request(#sip{hdrs = Hdrs} = Req, SIPSock) ->
{_, #uri{user = U, host = S}, _} = esip:get_hdr('to', Hdrs),
LUser = jlib:nodeprep(U),
LServer = jlib:nameprep(S),
{PeerIP, _} = SIPSock#sip_socket.peer,
US = {LUser, LServer},
Expires = esip:get_hdr('expires', Hdrs, 0),
case esip:get_hdrs('contact', Hdrs) of
[<<"*">>] when Expires == 0 ->
?INFO_MSG("unregister SIP session for user ~s@~s from ~s",
[LUser, LServer, inet_parse:ntoa(PeerIP)]),
unregister_session(US),
mod_sip:make_response(Req, #sip{type = response, status = 200});
[{_, _URI, _Params}|_] = Contacts ->
ContactsWithExpires =
lists:map(
fun({Name, URI, Params}) ->
Exp = case to_integer(
esip:get_param(
<<"expires">>, Params),
0, (1 bsl 32)-1) of
{ok, E} -> E;
_ -> Expires
end,
NewParams = esip:set_param(
<<"expires">>,
erlang:integer_to_binary(Exp),
Params),
{Exp, {Name, URI, NewParams}}
end, Contacts),
[{Expires1, _}|_] = lists:keysort(1, ContactsWithExpires),
MinExpires = min_expires(),
if Expires1 >= MinExpires ->
?INFO_MSG("register SIP session for user ~s@~s from ~s",
[LUser, LServer, inet_parse:ntoa(PeerIP)]),
register_session(US, SIPSock, Expires1),
mod_sip:make_response(
Req,
#sip{type = response,
status = 200,
hdrs = [{'contact',
[C || {_, C} <- ContactsWithExpires]}]});
Expires1 > 0, Expires1 < MinExpires ->
mod_sip:make_response(
Req, #sip{type = response,
status = 423,
hdrs = [{'min-expires', MinExpires}]});
true ->
?INFO_MSG("unregister SIP session for user ~s@~s from ~s",
[LUser, LServer, inet_parse:ntoa(PeerIP)]),
unregister_session(US),
mod_sip:make_response(
Req,
#sip{type = response, status = 200,
hdrs = [{'contact',
[C || {_, C} <- ContactsWithExpires]}]})
end;
_ ->
mod_sip:make_response(Req, #sip{type = response, status = 400})
end.
find_session(U, S) ->
case mnesia:dirty_read(sip_session, {U, S}) of
[Session] ->
{ok, Session};
[] ->
error
end.
%%%===================================================================
%%% gen_server callbacks
%%%===================================================================
init([]) ->
mnesia:create_table(sip_session,
[{ram_copies, [node()]},
{attributes, record_info(fields, sip_session)}]),
mnesia:add_table_copy(sip_session, node(), ram_copies),
{ok, #state{}}.
handle_call({write, Session}, _From, State) ->
Res = write_session(Session),
{reply, Res, State};
handle_call({delete, US}, _From, State) ->
Res = delete_session(US),
{reply, Res, State};
handle_call(_Request, _From, State) ->
Reply = ok,
{reply, Reply, State}.
handle_cast(_Msg, State) ->
{noreply, State}.
handle_info({write, Session}, State) ->
write_session(Session),
{noreply, State};
handle_info({delete, US}, State) ->
delete_session(US),
{noreply, State};
handle_info({timeout, TRef, US}, State) ->
case mnesia:dirty_read(sip_session, US) of
[#sip_session{tref = TRef}] ->
mnesia:dirty_delete(sip_session, US);
[] ->
ok
end,
{noreply, State};
handle_info(_Info, State) ->
?ERROR_MSG("got unexpected info: ~p", [_Info]),
{noreply, State}.
terminate(_Reason, _State) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
%%%===================================================================
%%% Internal functions
%%%===================================================================
register_session(US, SIPSocket, Expires) ->
Session = #sip_session{us = US,
socket = SIPSocket,
timestamp = now(),
expires = Expires},
gen_server:call(?MODULE, {write, Session}).
unregister_session(US) ->
gen_server:call(?MODULE, {delete, US}).
write_session(#sip_session{us = US, expires = Expires} = Session) ->
case mnesia:dirty_read(sip_session, US) of
[#sip_session{tref = TRef}] ->
erlang:cancel_timer(TRef);
[] ->
ok
end,
NewTRef = erlang:start_timer(Expires * 1000, self(), US),
mnesia:dirty_write(Session#sip_session{tref = NewTRef}).
delete_session(US) ->
case mnesia:dirty_read(sip_session, US) of
[#sip_session{tref = TRef}] ->
erlang:cancel_timer(TRef),
mnesia:dirty_delete(sip_session, US);
[] ->
ok
end.
min_expires() ->
60.
to_integer(Bin, Min, Max) ->
case catch list_to_integer(binary_to_list(Bin)) of
N when N >= Min, N =< Max ->
{ok, N};
_ ->
error
end.

1
vars.config.in
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@ -28,6 +28,7 @@
{json, @json@}.
{http, @http@}.
{lager, @lager@}.
{sip, @sip@}.
{iconv, @iconv@}.
%% Version