Chapril/xmpp.chapril.org-ejabberd
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Fix compile errors introduced by previous cherry picks

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This commit is contained in:
Evgeniy Khramtsov 2014-07-10 14:16:33 +04:00
parent aa8dce9804
commit a5987633e0
4 changed files with 158 additions and 309 deletions
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3
src/ejabberd_riak.erl
View File

@ -4,7 +4,7 @@
%%% Interface for Riak database %%% Interface for Riak database
%%% @end %%% @end
%%% Created : 29 Dec 2011 by Alexey Shchepin <alexey@process-one.net> %%% Created : 29 Dec 2011 by Alexey Shchepin <alexey@process-one.net>
%%% @copyright (C) 2002-2012 ProcessOne %%% @copyright (C) 2002-2014 ProcessOne
%%% %%%
%%% This program is free software; you can redistribute it and/or %%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as %%% modify it under the terms of the GNU General Public License as
@ -42,6 +42,7 @@
terminate/2, code_change/3]). terminate/2, code_change/3]).
-include("ejabberd.hrl"). -include("ejabberd.hrl").
-include("logger.hrl").
-record(state, {pid = self() :: pid()}). -record(state, {pid = self() :: pid()}).

256
src/mod_caps.erl
View File

@ -17,9 +17,10 @@
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU %%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details. %%% General Public License for more details.
%%% %%%
%%% You should have received a copy of the GNU General Public License along %%% You should have received a copy of the GNU General Public License
%%% with this program; if not, write to the Free Software Foundation, Inc., %%% along with this program; if not, write to the Free Software
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. %%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%% %%%
%%% 2009, improvements from ProcessOne to support correct PEP handling %%% 2009, improvements from ProcessOne to support correct PEP handling
%%% through s2s, use less memory, and speedup global caps handling %%% through s2s, use less memory, and speedup global caps handling
@ -35,7 +36,8 @@
-export([read_caps/1, caps_stream_features/2, -export([read_caps/1, caps_stream_features/2,
disco_features/5, disco_identity/5, disco_info/5, disco_features/5, disco_identity/5, disco_info/5,
get_features/1]). get_features/2, export/1, import_info/0, import/5,
import_start/2, import_stop/2]).
%% gen_mod callbacks %% gen_mod callbacks
-export([start/2, start_link/2, stop/1]). -export([start/2, start_link/2, stop/1]).
@ -45,10 +47,8 @@
handle_cast/2, terminate/2, code_change/3]). handle_cast/2, terminate/2, code_change/3]).
%% hook handlers %% hook handlers
-export([user_send_packet/3, -export([user_send_packet/4, user_receive_packet/5,
user_receive_packet/4, c2s_presence_in/2, c2s_broadcast_recipients/6]).
c2s_presence_in/2,
c2s_broadcast_recipients/5]).
-include("ejabberd.hrl"). -include("ejabberd.hrl").
-include("logger.hrl"). -include("logger.hrl").
@ -79,9 +79,6 @@
-record(state, {host = <<"">> :: binary()}). -record(state, {host = <<"">> :: binary()}).
%%====================================================================
%% API
%%====================================================================
start_link(Host, Opts) -> start_link(Host, Opts) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME), Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:start_link({local, Proc}, ?MODULE, gen_server:start_link({local, Proc}, ?MODULE,
@ -99,20 +96,14 @@ stop(Host) ->
supervisor:terminate_child(ejabberd_sup, Proc), supervisor:terminate_child(ejabberd_sup, Proc),
supervisor:delete_child(ejabberd_sup, Proc). supervisor:delete_child(ejabberd_sup, Proc).
%% get_features returns a list of features implied by the given caps get_features(_Host, nothing) -> [];
%% record (as extracted by read_caps) or 'unknown' if features are get_features(Host, #caps{node = Node, version = Version,
%% not completely collected at the moment. exts = Exts}) ->
get_features(nothing) -> [];
get_features(#caps{node = Node, version = Version, exts = Exts}) ->
SubNodes = [Version | Exts], SubNodes = [Version | Exts],
%% read_caps takes a list of XML elements (the child elements of a
%% <presence/> stanza) and returns an opaque value representing the
%% Entity Capabilities contained therein, or the atom nothing if no
%% capabilities are advertised.
lists:foldl(fun (SubNode, Acc) -> lists:foldl(fun (SubNode, Acc) ->
NodePair = {Node, SubNode}, NodePair = {Node, SubNode},
case cache_tab:lookup(caps_features, NodePair, case cache_tab:lookup(caps_features, NodePair,
caps_read_fun(NodePair)) caps_read_fun(Host, NodePair))
of of
{ok, Features} when is_list(Features) -> {ok, Features} when is_list(Features) ->
Features ++ Acc; Features ++ Acc;
@ -121,6 +112,8 @@ get_features(#caps{node = Node, version = Version, exts = Exts}) ->
end, end,
[], SubNodes). [], SubNodes).
-spec read_caps([xmlel()]) -> nothing | caps().
read_caps(Els) -> read_caps(Els, nothing). read_caps(Els) -> read_caps(Els, nothing).
read_caps([#xmlel{name = <<"c">>, attrs = Attrs} read_caps([#xmlel{name = <<"c">>, attrs = Attrs}
@ -149,13 +142,12 @@ read_caps([_ | Tail], Result) ->
read_caps(Tail, Result); read_caps(Tail, Result);
read_caps([], Result) -> Result. read_caps([], Result) -> Result.
%%==================================================================== user_send_packet(#xmlel{name = <<"presence">>, attrs = Attrs,
%% Hooks children = Els} = Pkt,
%%==================================================================== _C2SState,
user_send_packet(
#jid{luser = User, lserver = Server} = From, #jid{luser = User, lserver = Server} = From,
#jid{luser = User, lserver = Server, lresource = <<"">>}, #jid{luser = User, lserver = Server,
#xmlel{name = <<"presence">>, attrs = Attrs, children = Els}) -> lresource = <<"">>}) ->
Type = xml:get_attr_s(<<"type">>, Attrs), Type = xml:get_attr_s(<<"type">>, Attrs),
if Type == <<"">>; Type == <<"available">> -> if Type == <<"">>; Type == <<"available">> ->
case read_caps(Els) of case read_caps(Els) of
@ -164,12 +156,15 @@ user_send_packet(
feature_request(Server, From, Caps, [Version | Exts]) feature_request(Server, From, Caps, [Version | Exts])
end; end;
true -> ok true -> ok
end; end,
user_send_packet(_From, _To, _Packet) -> ok. Pkt;
user_send_packet(Pkt, _C2SState, _From, _To) ->
Pkt.
user_receive_packet(#jid{lserver = Server}, From, _To, user_receive_packet(#xmlel{name = <<"presence">>, attrs = Attrs,
#xmlel{name = <<"presence">>, attrs = Attrs, children = Els} = Pkt,
children = Els}) -> _C2SState, #jid{lserver = Server},
From, _To) ->
Type = xml:get_attr_s(<<"type">>, Attrs), Type = xml:get_attr_s(<<"type">>, Attrs),
IsRemote = not lists:member(From#jid.lserver, ?MYHOSTS), IsRemote = not lists:member(From#jid.lserver, ?MYHOSTS),
if IsRemote and if IsRemote and
@ -180,9 +175,12 @@ user_receive_packet(#jid{lserver = Server}, From, _To,
feature_request(Server, From, Caps, [Version | Exts]) feature_request(Server, From, Caps, [Version | Exts])
end; end;
true -> ok true -> ok
end; end,
user_receive_packet(_JID, _From, _To, _Packet) -> Pkt;
ok. user_receive_packet(Pkt, _C2SState, _JID, _From, _To) ->
Pkt.
-spec caps_stream_features([xmlel()], binary()) -> [xmlel()].
caps_stream_features(Acc, MyHost) -> caps_stream_features(Acc, MyHost) ->
case make_my_disco_hash(MyHost) of case make_my_disco_hash(MyHost) of
@ -260,7 +258,8 @@ c2s_presence_in(C2SState,
end, end,
if CapsUpdated -> if CapsUpdated ->
ejabberd_hooks:run(caps_update, To#jid.lserver, ejabberd_hooks:run(caps_update, To#jid.lserver,
[From, To, get_features(Caps)]); [From, To,
get_features(To#jid.lserver, Caps)]);
true -> ok true -> ok
end, end,
ejabberd_c2s:set_aux_field(caps_resources, NewRs, ejabberd_c2s:set_aux_field(caps_resources, NewRs,
@ -268,29 +267,26 @@ c2s_presence_in(C2SState,
true -> C2SState true -> C2SState
end. end.
c2s_broadcast_recipients(InAcc, C2SState, {pep_message, Feature}, c2s_broadcast_recipients(InAcc, Host, C2SState,
_From, _Packet) -> {pep_message, Feature}, _From, _Packet) ->
case ejabberd_c2s:get_aux_field(caps_resources, C2SState) of case ejabberd_c2s:get_aux_field(caps_resources,
C2SState)
of
{ok, Rs} -> {ok, Rs} ->
gb_trees_fold( gb_trees_fold(fun (USR, Caps, Acc) ->
fun(USR, Caps, Acc) -> case lists:member(Feature,
case lists:member(Feature, get_features(Caps)) of get_features(Host, Caps))
true -> of
[USR|Acc]; true -> [USR | Acc];
false -> false -> Acc
Acc
end end
end, InAcc, Rs); end,
_ -> InAcc, Rs);
InAcc _ -> InAcc
end; end;
c2s_broadcast_recipients(Acc, _, _, _, _) -> c2s_broadcast_recipients(Acc, _, _, _, _, _) -> Acc.
Acc.
%%==================================================================== init_db(mnesia, _Host) ->
%% gen_server callbacks
%%====================================================================
init([Host, Opts]) ->
case catch mnesia:table_info(caps_features, storage_type) of case catch mnesia:table_info(caps_features, storage_type) of
{'EXIT', _} -> {'EXIT', _} ->
ok; ok;
@ -302,29 +298,42 @@ init([Host, Opts]) ->
mnesia:create_table(caps_features, mnesia:create_table(caps_features,
[{disc_only_copies, [node()]}, [{disc_only_copies, [node()]},
{local_content, true}, {local_content, true},
{attributes, record_info(fields, caps_features)}]), {attributes,
mnesia:add_table_copy(caps_features, node(), disc_only_copies), record_info(fields, caps_features)}]),
MaxSize = gen_mod:get_opt(cache_size, Opts, fun(CS) when is_integer(CS) -> CS end, 1000), update_table(),
LifeTime = gen_mod:get_opt(cache_life_time, Opts, fun(CL) when is_integer(CL) -> CL end, timer:hours(24) div 1000), mnesia:add_table_copy(caps_features, node(),
cache_tab:new(caps_features, [{max_size, MaxSize}, {life_time, LifeTime}]), disc_only_copies);
ejabberd_hooks:add(c2s_presence_in, Host, init_db(_, _) ->
?MODULE, c2s_presence_in, 75), ok.
init([Host, Opts]) ->
init_db(gen_mod:db_type(Opts), Host),
MaxSize = gen_mod:get_opt(cache_size, Opts,
fun(I) when is_integer(I), I>0 -> I end,
1000),
LifeTime = gen_mod:get_opt(cache_life_time, Opts,
fun(I) when is_integer(I), I>0 -> I end,
timer:hours(24) div 1000),
cache_tab:new(caps_features,
[{max_size, MaxSize}, {life_time, LifeTime}]),
ejabberd_hooks:add(c2s_presence_in, Host, ?MODULE,
c2s_presence_in, 75),
ejabberd_hooks:add(c2s_broadcast_recipients, Host, ejabberd_hooks:add(c2s_broadcast_recipients, Host,
?MODULE, c2s_broadcast_recipients, 75), ?MODULE, c2s_broadcast_recipients, 75),
ejabberd_hooks:add(user_send_packet, Host, ejabberd_hooks:add(user_send_packet, Host, ?MODULE,
?MODULE, user_send_packet, 75), user_send_packet, 75),
ejabberd_hooks:add(user_receive_packet, Host, ejabberd_hooks:add(user_receive_packet, Host, ?MODULE,
?MODULE, user_receive_packet, 75), user_receive_packet, 75),
ejabberd_hooks:add(c2s_stream_features, Host, ejabberd_hooks:add(c2s_stream_features, Host, ?MODULE,
?MODULE, caps_stream_features, 75), caps_stream_features, 75),
ejabberd_hooks:add(s2s_stream_features, Host, ejabberd_hooks:add(s2s_stream_features, Host, ?MODULE,
?MODULE, caps_stream_features, 75), caps_stream_features, 75),
ejabberd_hooks:add(disco_local_features, Host, ejabberd_hooks:add(disco_local_features, Host, ?MODULE,
?MODULE, disco_features, 75), disco_features, 75),
ejabberd_hooks:add(disco_local_identity, Host, ejabberd_hooks:add(disco_local_identity, Host, ?MODULE,
?MODULE, disco_identity, 75), disco_identity, 75),
ejabberd_hooks:add(disco_info, Host, ejabberd_hooks:add(disco_info, Host, ?MODULE,
?MODULE, disco_info, 75), disco_info, 75),
{ok, #state{host = Host}}. {ok, #state{host = Host}}.
handle_call(stop, _From, State) -> handle_call(stop, _From, State) ->
@ -360,15 +369,12 @@ terminate(_Reason, State) ->
code_change(_OldVsn, State, _Extra) -> {ok, State}. code_change(_OldVsn, State, _Extra) -> {ok, State}.
%%====================================================================
%% Aux functions
%%====================================================================
feature_request(Host, From, Caps, feature_request(Host, From, Caps,
[SubNode | Tail] = SubNodes) -> [SubNode | Tail] = SubNodes) ->
Node = Caps#caps.node, Node = Caps#caps.node,
NodePair = {Node, SubNode}, NodePair = {Node, SubNode},
case cache_tab:lookup(caps_features, NodePair, case cache_tab:lookup(caps_features, NodePair,
caps_read_fun(NodePair)) caps_read_fun(Host, NodePair))
of of
{ok, Fs} when is_list(Fs) -> {ok, Fs} when is_list(Fs) ->
feature_request(Host, From, Caps, Tail); feature_request(Host, From, Caps, Tail);
@ -388,7 +394,7 @@ feature_request(Host, From, Caps,
SubNode/binary>>}], SubNode/binary>>}],
children = []}]}, children = []}]},
cache_tab:insert(caps_features, NodePair, now_ts(), cache_tab:insert(caps_features, NodePair, now_ts(),
caps_write_fun(NodePair, now_ts())), caps_write_fun(Host, NodePair, now_ts())),
F = fun (IQReply) -> F = fun (IQReply) ->
feature_response(IQReply, Host, From, Caps, feature_response(IQReply, Host, From, Caps,
SubNodes) SubNodes)
@ -416,7 +422,7 @@ feature_response(#iq{type = result,
Els), Els),
cache_tab:insert(caps_features, NodePair, cache_tab:insert(caps_features, NodePair,
Features, Features,
caps_write_fun(NodePair, Features)); caps_write_fun(Host, NodePair, Features));
false -> ok false -> ok
end, end,
feature_request(Host, From, Caps, SubNodes); feature_request(Host, From, Caps, SubNodes);
@ -424,7 +430,12 @@ feature_response(_IQResult, Host, From, Caps,
[_SubNode | SubNodes]) -> [_SubNode | SubNodes]) ->
feature_request(Host, From, Caps, SubNodes). feature_request(Host, From, Caps, SubNodes).
caps_read_fun(Node) -> caps_read_fun(Host, Node) ->
LServer = jlib:nameprep(Host),
DBType = gen_mod:db_type(LServer, ?MODULE),
caps_read_fun(LServer, Node, DBType).
caps_read_fun(_LServer, Node, mnesia) ->
fun () -> fun () ->
case mnesia:dirty_read({caps_features, Node}) of case mnesia:dirty_read({caps_features, Node}) of
[#caps_features{features = Features}] -> {ok, Features}; [#caps_features{features = Features}] -> {ok, Features};
@ -458,7 +469,12 @@ caps_read_fun(LServer, {Node, SubNode}, odbc) ->
end end
end. end.
caps_write_fun(Node, Features) -> caps_write_fun(Host, Node, Features) ->
LServer = jlib:nameprep(Host),
DBType = gen_mod:db_type(LServer, ?MODULE),
caps_write_fun(LServer, Node, Features, DBType).
caps_write_fun(_LServer, Node, Features, mnesia) ->
fun () -> fun () ->
mnesia:dirty_write(#caps_features{node_pair = Node, mnesia:dirty_write(#caps_features{node_pair = Node,
features = Features}) features = Features})
@ -669,34 +685,46 @@ export(_Server) ->
[] []
end}]. end}].
import(_LServer) -> import_info() ->
[{<<"select node, subnode from caps_features;">>, [{<<"caps_features">>, 4}].
fun([Node, SubNode]) ->
SNode = ejabberd_odbc:escape(Node),
SSubNode = ejabberd_odbc:escape(SubNode),
{selected, _, Rows} =
ejabberd_odbc:sql_query_t(
[<<"select feature from caps_features "
"where node='">>, SNode,
<<"' and subnode='">>, SSubNode, <<"';">>]),
Features = case Rows of
[[Stamp]] ->
case catch jlib:binary_to_integer(Stamp) of
Int when is_integer(Int), Int>=0 ->
Int;
_ ->
[Stamp]
end;
_ ->
[Feature || [Feature] <- Rows]
end,
#caps_features{node_pair = {Node, SubNode},
features = Features}
end}].
import(_LServer, mnesia, #caps_features{} = Caps) -> import_start(LServer, DBType) ->
mnesia:dirty_write(Caps); ets:new(caps_features_tmp, [private, named_table, bag]),
import(_LServer, riak, #caps_features{} = Caps) -> init_db(DBType, LServer),
ejabberd_riak:put(Caps); ok.
import(_, _, _) ->
pass. import(_LServer, {odbc, _}, _DBType, <<"caps_features">>,
[Node, SubNode, Feature, _TimeStamp]) ->
Feature1 = case catch jlib:binary_to_integer(Feature) of
I when is_integer(I), I>0 -> I;
_ -> Feature
end,
ets:insert(caps_features_tmp, {{Node, SubNode}, Feature1}),
ok.
import_stop(LServer, DBType) ->
import_next(LServer, DBType, ets:first(caps_features_tmp)),
ets:delete(caps_features_tmp),
ok.
import_next(_LServer, _DBType, '$end_of_table') ->
ok;
import_next(LServer, DBType, NodePair) ->
Features = [F || {_, F} <- ets:lookup(caps_features_tmp, NodePair)],
case Features of
[I] when is_integer(I), DBType == mnesia ->
mnesia:dirty_write(
#caps_features{node_pair = NodePair, features = I});
[I] when is_integer(I), DBType == riak ->
ejabberd_riak:put(
#caps_features{node_pair = NodePair, features = I});
_ when DBType == mnesia ->
mnesia:dirty_write(
#caps_features{node_pair = NodePair, features = Features});
_ when DBType == riak ->
ejabberd_riak:put(
#caps_features{node_pair = NodePair, features = Features});
_ when DBType == odbc ->
ok
end,
import_next(LServer, DBType, ets:next(caps_features_tmp, NodePair)).

5
src/mod_offline.erl
View File

@ -594,9 +594,8 @@ webadmin_page(Acc, _, _) -> Acc.
get_offline_els(LUser, LServer) -> get_offline_els(LUser, LServer) ->
get_offline_els(LUser, LServer, gen_mod:db_type(LServer, ?MODULE)). get_offline_els(LUser, LServer, gen_mod:db_type(LServer, ?MODULE)).
get_offline_els(LUser, LServer, mnesia) -> get_offline_els(LUser, LServer, DBType)
Msgs = read_all_msgs(LUser, LServer, mnesia), when DBType == mnesia; DBType == riak ->
get_offline_els(LUser, LServer, DBType) when DBType == mnesia; DBType == riak ->
Msgs = read_all_msgs(LUser, LServer, DBType), Msgs = read_all_msgs(LUser, LServer, DBType),
lists:map( lists:map(
fun(Msg) -> fun(Msg) ->

179
src/mod_roster.erl
View File

@ -1754,182 +1754,3 @@ import(_LServer, riak, #roster_version{} = RV) ->
ejabberd_riak:put(RV); ejabberd_riak:put(RV);
import(_, _, _) -> import(_, _, _) ->
pass. pass.
riak_get_roster(LServer, Username) ->
ejabberd_riak:get_by_index(
LServer, <<"roster">>, <<"user_bin">>, Username).
riak_get_roster_jid_groups(LServer, Username) ->
case ejabberd_riak:get_by_index(
LServer, <<"roster_groups">>, <<"user_bin">>, Username) of
{ok, JGs} ->
Res = lists:map(fun riak_binary_to_groups/1, JGs),
{ok, Res};
Error -> Error
end.
riak_get_roster_groups(LServer, Username, SJID) ->
Key = <<Username/binary, $/, SJID/binary>>,
case ejabberd_riak:get(LServer, <<"roster_groups">>, Key) of
{ok, Gs} ->
{_, Res} = riak_binary_to_groups(Gs),
{ok, Res};
{error, notfound} ->
{ok, []};
Error -> Error
end.
riak_get_roster_by_jid(LServer, Username, SJID) ->
Key = <<Username/binary, $/, SJID/binary>>,
ejabberd_riak:get(LServer, <<"roster">>, Key).
riak_del_roster(LServer, Username, SJID) ->
Key = <<Username/binary, $/, SJID/binary>>,
ejabberd_riak:delete(LServer, <<"roster">>, Key).
riak_update_roster(LServer, Username, SJID, ItemVals, ItemGroups) ->
Key = <<Username/binary, $/, SJID/binary>>,
ejabberd_riak:put(
LServer, <<"roster">>, Key, ItemVals,
[{<<"user_bin">>, Username}]),
ejabberd_riak:put(
LServer, <<"roster_groups">>, Key, ItemGroups,
[{<<"user_bin">>, Username}]).
riak_roster_subscribe(LServer, Username, SJID, ItemVals) ->
Key = <<Username/binary, $/, SJID/binary>>,
ejabberd_riak:put(
LServer, <<"roster">>, Key, ItemVals,
[{<<"user_bin">>, Username}]).
riak_get_subscription(LServer, Username, SJID) ->
case riak_get_roster_by_jid(LServer, Username, SJID) of
{ok, SR} ->
case riak_raw_to_record(LServer, SR) of
error ->
{error, bad_record};
R ->
{ok, R#roster.subscription}
end;
Error ->
Error
end.
riak_set_roster_version(LServer, Username, RosterVersion) ->
ejabberd_riak:put(LServer, <<"roster_version">>,
Username, RosterVersion).
riak_del_user_roster(LServer, Username) ->
case ejabberd_riak:get_keys_by_index(
LServer, <<"roster">>, <<"user_bin">>, Username) of
{ok, Keys} ->
lists:foreach(
fun(Key) ->
ejabberd_riak:delete(LServer, <<"roster">>, Key)
end, Keys);
_ ->
ok
end,
case ejabberd_riak:get_keys_by_index(
LServer, <<"roster_groups">>, <<"user_bin">>, Username) of
{ok, GKeys} ->
lists:foreach(
fun(Key) ->
ejabberd_riak:delete(LServer, <<"roster_groups">>, Key)
end, GKeys);
_ ->
ok
end,
ejabberd_riak:delete(LServer, <<"roster_version">>, Username).
riak_raw_to_record(LServer,
<<UsernameLen:16, Username:UsernameLen/binary,
SJIDLen:16, SJID:SJIDLen/binary,
NickLen:16, Nick:NickLen/binary,
SSubscription, SAsk,
SAskMessageLen:16, SAskMessage:SAskMessageLen/binary>>) ->
User = Username,
case jlib:string_to_jid(SJID) of
error ->
error;
JID ->
LJID = jlib:jid_tolower(JID),
Subscription = case SSubscription of
$B -> both;
$T -> to;
$F -> from;
_ -> none
end,
Ask = case SAsk of
$S -> subscribe;
$U -> unsubscribe;
$B -> both;
$O -> out;
$I -> in;
_ -> none
end,
#roster{usj = {User, LServer, LJID},
us = {User, LServer},
jid = LJID,
name = Nick,
subscription = Subscription,
ask = Ask,
askmessage = SAskMessage}
end.
riak_record_to_string(#roster{us = {User, _Server},
jid = JID,
name = Name,
subscription = Subscription,
ask = Ask,
askmessage = AskMessage}) ->
Username = User,
UsernameLen = size(Username),
SJID = jlib:jid_to_string(jlib:jid_tolower(JID)),
SJIDLen = size(SJID),
Nick = Name,
NickLen = size(Nick),
SSubscription = case Subscription of
both -> $B;
to -> $T;
from -> $F;
none -> $N
end,
SAsk = case Ask of
subscribe -> $S;
unsubscribe -> $U;
both -> $B;
out -> $O;
in -> $I;
none -> $N
end,
SAskMessage = iolist_to_binary(AskMessage),
SAskMessageLen = size(SAskMessage),
<<UsernameLen:16, Username/binary,
SJIDLen:16, SJID/binary,
NickLen:16, Nick/binary,
SSubscription, SAsk,
SAskMessageLen:16, SAskMessage/binary>>.
riak_groups_to_binary(#roster{jid = JID, groups = Groups}) ->
SJID = jlib:jid_to_string(jlib:jid_tolower(JID)),
SJIDLen = size(SJID),
%% Empty groups do not need to be converted to string to be inserted in
%% the database
lists:foldl(
fun([], Acc) ->
Acc;
(Group, Acc) ->
G = Group,
Len = size(G),
<<Acc/binary, Len:16, G/binary>>
end, <<SJIDLen:16, SJID/binary>>, Groups).
riak_binary_to_groups(<<Len:16, SJID:Len/binary, Rest/binary>>) ->
{SJID, riak_binary_to_groups(Rest, [])}.
riak_binary_to_groups(<<Len:16, G:Len/binary, Rest/binary>>, Res) ->
riak_binary_to_groups(Rest, [G | Res]);
riak_binary_to_groups(_, Res) ->
Res.