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-module(mod_domain_isolation). |
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-behaviour(gen_mod). |
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-include_lib("exml/include/exml.hrl"). |
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-include_lib("jid/include/jid.hrl"). |
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-include("mongoose_config_spec.hrl"). |
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%% gen_mod handlers |
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-export([start/2, stop/1]). |
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-export([hooks/1]). |
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-export([config_spec/0]). |
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-export([supported_features/0]). |
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%% hooks |
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-export([filter_local_packet/3]). |
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-spec config_spec() -> mongoose_config_spec:config_section(). |
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config_spec() -> |
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186 |
#section{items = #{}}. |
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start(_HostType, _Opts) -> |
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1 |
ok. |
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stop(_HostType) -> |
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ok. |
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-spec hooks(mongooseim:host_type()) -> gen_hook:hook_list(). |
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hooks(HostType) -> |
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[{filter_local_packet, HostType, fun ?MODULE:filter_local_packet/3, #{}, 10}]. |
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-spec supported_features() -> [atom()]. |
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1 |
supported_features() -> [dynamic_domains]. |
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-spec filter_local_packet(FPacketAcc, Params, Extra) -> {ok, FPacketAcc} | {stop, drop} when |
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FPacketAcc :: mongoose_hooks:filter_packet_acc(), |
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Params :: map(), |
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Extra :: gen_hook:extra(). |
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filter_local_packet(drop, _, _) -> |
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:-( |
{ok, drop}; |
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filter_local_packet({#jid{lserver = Server}, #jid{lserver = Server}, _Acc, _Packet} = FPacketAcc, _, _) -> |
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{ok, FPacketAcc}; |
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filter_local_packet({#jid{lserver = FromServer}, #jid{lserver = ToServer}, _Acc, _Packet} = FPacketAcc, _, _) -> |
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8 |
FromHost = domain_to_host(FromServer), |
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8 |
ToHost = domain_to_host(ToServer), |
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8 |
case resolve_hosts(FromHost, ToHost, FPacketAcc) of |
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drop -> |
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3 |
{stop, drop}; |
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FPacketAcc -> |
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5 |
{ok, FPacketAcc} |
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end. |
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-spec resolve_hosts(Host, Host, FPacketAcc) -> FPacketAcc | drop when |
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Host :: jid:lserver(), |
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FPacketAcc :: mongoose_hooks:filter_packet_acc(). |
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resolve_hosts(Host, Host, FPacketAcc) -> |
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2 |
FPacketAcc; |
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resolve_hosts(_FromHost, _ToHost, {From, To, Acc, _Packet} = FPacketAcc) -> |
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%% Allow errors from this module to be passed |
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6 |
case mongoose_acc:get(domain_isolation, ignore, false, Acc) of |
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true -> |
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FPacketAcc; |
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false -> |
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3 |
maybe_send_back_error(From, To, Acc, FPacketAcc), |
| 64 |
3 |
drop |
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end. |
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%% muc.localhost becomes localhost. |
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%% localhost stays localhost. |
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-spec domain_to_host(jid:lserver()) -> jid:lserver(). |
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domain_to_host(Domain) -> |
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case mongoose_domain_api:get_subdomain_info(Domain) of |
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{ok, #{parent_domain := Parent}} when is_binary(Parent) -> Parent; |
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_ -> Domain |
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end. |
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-spec maybe_send_back_error(From, To, Acc, FPacketAcc) -> FPacketAcc | drop when |
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From :: jid:jid(), |
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To :: jid:jid(), |
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Acc :: mongoose_acc:t(), |
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FPacketAcc :: mongoose_hooks:filter_packet_acc(). |
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maybe_send_back_error(From, To, Acc, FPacketAcc) -> |
| 82 |
3 |
case mongoose_acc:stanza_type(Acc) of |
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<<"error">> -> %% Never reply to the errors |
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:-( |
FPacketAcc; |
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_ -> |
| 86 |
3 |
Err = mongoose_xmpp_errors:service_unavailable(<<"en">>, |
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<<"Filtered by the domain isolation">>), |
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Acc2 = mongoose_acc:set_permanent(domain_isolation, ignore, true, Acc), |
| 89 |
3 |
send_back_error(Err, From, To, Acc2), |
| 90 |
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drop |
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end. |
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-spec send_back_error(Etype, From, To, Acc) -> Acc when |
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Etype :: exml:element(), |
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From :: jid:jid(), |
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To :: jid:jid(), |
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Acc :: mongoose_acc:t(). |
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send_back_error(Etype, From, To, Acc) -> |
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3 |
{Acc1, Err} = jlib:make_error_reply(Acc, Etype), |
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3 |
ejabberd_router:route(To, From, Acc1, Err). |