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xmpp.chapril.org-ejabberd/src/mod_vcard_ldap.erl

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%%%----------------------------------------------------------------------
%%% File : mod_vcard_ldap.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose :
%%% Created : 2 Jan 2003 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id$
%%%----------------------------------------------------------------------
-module(mod_vcard_ldap).
-author('alexey@sevcom.net').
-vsn('$Revision$ ').
-behaviour(gen_mod).
-export([start/1, init/2, stop/0,
process_local_iq/3,
process_sm_iq/3,
remove_user/1]).
-include("ejabberd.hrl").
-include("eldap/eldap.hrl").
-include("jlib.hrl").
start(Opts) ->
IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
gen_iq_handler:add_iq_handler(ejabberd_local, ?NS_VCARD,
?MODULE, process_local_iq, IQDisc),
gen_iq_handler:add_iq_handler(ejabberd_sm, ?NS_VCARD,
?MODULE, process_sm_iq, IQDisc),
LDAPServers = ejabberd_config:get_local_option(ldap_servers),
eldap:start_link("mod_vcard_ldap", LDAPServers, 389, "", ""),
Host = gen_mod:get_opt(host, Opts, "vjud." ++ ?MYNAME),
Search = gen_mod:get_opt(search, Opts, true),
register(ejabberd_mod_vcard_ldap, spawn(?MODULE, init, [Host, Search])).
init(Host, Search) ->
case Search of
false ->
loop(Host);
_ ->
ejabberd_router:register_route(Host),
loop(Host)
end.
loop(Host) ->
receive
{route, From, To, Packet} ->
case catch do_route(From, To, Packet) of
{'EXIT', Reason} ->
?ERROR_MSG("~p", [Reason]);
_ ->
ok
end,
loop(Host);
stop ->
catch ejabberd_router:unregister_route(Host),
ok;
_ ->
loop(Host)
end.
stop() ->
gen_iq_handler:remove_iq_handler(ejabberd_local, ?NS_VCARD),
gen_iq_handler:remove_iq_handler(ejabberd_sm, ?NS_VCARD),
ejabberd_mod_vcard_ldap ! stop,
ok.
process_local_iq(_From, _To, #iq{type = Type, lang = Lang, sub_el = SubEl} = IQ) ->
case Type of
set ->
IQ#iq{type = error, sub_el = [SubEl, ?ERR_NOT_ALLOWED]};
get ->
IQ#iq{type = result,
sub_el = [{xmlelement, "vCard",
[{"xmlns", ?NS_VCARD}],
[{xmlelement, "FN", [],
[{xmlcdata, "ejabberd"}]},
{xmlelement, "URL", [],
[{xmlcdata,
"http://ejabberd.jabberstudio.org/"}]},
{xmlelement, "DESC", [],
[{xmlcdata,
translate:translate(
Lang,
"Erlang Jabber Server\n"
"Copyright (c) 2002-2004 Alexey Shchepin")}]},
{xmlelement, "BDAY", [],
[{xmlcdata, "2002-11-16"}]}
]}]}
end.
find_ldap_user(User) ->
Attr = ejabberd_config:get_local_option(ldap_uidattr),
Filter = eldap:equalityMatch(Attr, User),
Base = ejabberd_config:get_local_option(ldap_base),
case eldap:search("mod_vcard_ldap", [{base, Base},
{filter, Filter},
{attributes, []}]) of
#eldap_search_result{entries = [E | _]} ->
E;
_ ->
false
end.
is_attribute_read_allowed(Name,From,To) ->
true.
ldap_attribute_to_vcard(Prefix,{Name,Values},From,To) ->
case is_attribute_read_allowed(Name,From,To) of
true ->
ldap_lca_to_vcard(Prefix,stringprep:tolower(Name),Values);
_ ->
none
end.
ldap_lca_to_vcard(vCard,"displayname",[Value|_]) ->
{xmlelement,"FN",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCard,"uid",[Value|_]) ->
{xmlelement,"NICKNAME",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCard,"title",[Value|_]) ->
{xmlelement,"TITLE",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCard,"labeleduri",[Value|_]) ->
{xmlelement,"URL",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCard,"description",[Value|_]) ->
{xmlelement,"DESC",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCard,"telephonenumber",[Value|_]) ->
{xmlelement,"TEL",[],[{xmlelement,"VOICE",[],[]},
{xmlelement,"WORK",[],[]},
{xmlelement,"NUMBER",[],[{xmlcdata,Value}]}]};
ldap_lca_to_vcard(vCard,"mail",[Value|_]) ->
{xmlelement,"EMAIL",[],[{xmlelement,"INTERNET",[],[]},
{xmlelement,"PREF",[],[]},
{xmlelement,"USERID",[],[{xmlcdata,Value}]}]};
ldap_lca_to_vcard(vCardN,"sn",[Value|_]) ->
{xmlelement,"FAMILY",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCardN,"givenname",[Value|_]) ->
{xmlelement,"GIVEN",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCardN,"initials",[Value|_]) ->
{xmlelement,"MIDDLE",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCardO,"o",[Value|_]) ->
{xmlelement,"ORGNAME",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(vCardO,"ou",[Value|_]) ->
{xmlelement,"ORGUNIT",[],[{xmlcdata,Value}]};
ldap_lca_to_vcard(_,_,_) -> none.
ldap_attributes_to_vcard(Attributes,From,To) ->
Elts = lists:map(fun(Attr) ->
ldap_attribute_to_vcard(vCard,Attr,From,To)
end,Attributes),
FElts = [ X || X <- Elts, X /= none ],
NElts = lists:map(fun(Attr) ->
ldap_attribute_to_vcard(vCardN,Attr,From,To)
end,Attributes),
FNElts = [ X || X <- NElts, X /= none ],
OElts = lists:map(fun(Attr) ->
ldap_attribute_to_vcard(vCardO,Attr,From,To)
end,Attributes),
FOElts = [ X || X <- OElts, X /= none ],
[{xmlelement, "vCard", [{"xmlns", ?NS_VCARD}],
lists:append(FElts,
[{xmlelement,"N",[],FNElts},
{xmlelement,"ORG",[],FOElts}])
}].
is_self_request(From,To) ->
#jid{luser = RUser, lserver = RServer } = From,
#jid{luser = LUser} = To,
case RServer == ?MYNAME of
true ->
LUser == RUser;
_ ->
false
end.
process_sm_iq(From, To, #iq{type = Type, sub_el = SubEl} = IQ) ->
case Type of
set ->
IQ#iq{type = error, sub_el = [SubEl, ?ERR_NOT_ALLOWED]};
get ->
#jid{luser = LUser} = To,
case find_ldap_user(LUser) of
#eldap_entry{attributes = Attributes} ->
Vcard = ldap_attributes_to_vcard(Attributes,From,To),
IQ#iq{type = result, sub_el = Vcard};
_ -> IQ#iq{type = result, sub_el = []}
end
end.
-define(TLFIELD(Type, Label, Var),
{xmlelement, "field", [{"type", Type},
{"label", translate:translate(Lang, Label)},
{"var", Var}], []}).
-define(FORM(JID),
[{xmlelement, "instructions", [],
[{xmlcdata, translate:translate(Lang, "You need an x:data capable client to search")}]},
{xmlelement, "x", [{"xmlns", ?NS_XDATA}, {"type", "form"}],
[{xmlelement, "title", [],
[{xmlcdata, translate:translate(Lang, "Search users in ") ++
jlib:jid_to_string(JID)}]},
{xmlelement, "instructions", [],
[{xmlcdata, translate:translate(Lang, "Fill in fields to search "
"for any matching Jabber User")}]},
?TLFIELD("text-single", "User", "user"),
?TLFIELD("text-single", "Full Name", "fn"),
?TLFIELD("text-single", "Given Name", "given"),
?TLFIELD("text-single", "Middle Name", "middle"),
?TLFIELD("text-single", "Family Name", "family"),
?TLFIELD("text-single", "Nickname", "nickname"),
?TLFIELD("text-single", "Birthday", "bday"),
?TLFIELD("text-single", "Country", "ctry"),
?TLFIELD("text-single", "City", "locality"),
?TLFIELD("text-single", "email", "email"),
?TLFIELD("text-single", "Organization Name", "orgname"),
?TLFIELD("text-single", "Organization Unit", "orgunit")
]}]).
do_route(From, To, Packet) ->
#jid{user = User, resource = Resource} = To,
if
(User /= "") or (Resource /= "") ->
Err = jlib:make_error_reply(Packet, ?ERR_SERVICE_UNAVAILABLE),
ejabberd_router ! {route, To, From, Err};
true ->
IQ = jlib:iq_query_info(Packet),
case IQ of
#iq{type = Type, xmlns = ?NS_SEARCH, lang = Lang, sub_el = SubEl} ->
case Type of
set ->
XDataEl = find_xdata_el(SubEl),
case XDataEl of
false ->
Err = jlib:make_error_reply(
Packet, ?ERR_BAD_REQUEST),
ejabberd_router:route(To, From, Err);
_ ->
XData = jlib:parse_xdata_submit(XDataEl),
case XData of
invalid ->
Err = jlib:make_error_reply(
Packet,
?ERR_BAD_REQUEST),
ejabberd_router:route(To, From,
Err);
_ ->
ResIQ =
IQ#iq{
type = result,
sub_el =
[{xmlelement,
"query",
[{"xmlns", ?NS_SEARCH}],
[{xmlelement, "x",
[{"xmlns", ?NS_XDATA},
{"type", "result"}],
search_result(Lang, To, XData)
}]}]},
ejabberd_router:route(
To, From, jlib:iq_to_xml(ResIQ))
end
end;
get ->
ResIQ = IQ#iq{type = result,
sub_el = [{xmlelement,
"query",
[{"xmlns", ?NS_SEARCH}],
?FORM(To)
}]},
ejabberd_router:route(To,
From,
jlib:iq_to_xml(ResIQ))
end;
#iq{type = Type, xmlns = ?NS_DISCO_INFO, sub_el = SubEl} ->
case Type of
set ->
Err = jlib:make_error_reply(
Packet, ?ERR_NOT_ALLOWED),
ejabberd_router:route(To, From, Err);
get ->
ResIQ =
IQ#iq{type = result,
sub_el = [{xmlelement,
"query",
[{"xmlns", ?NS_DISCO_INFO}],
[{xmlelement, "identity",
[{"category", "directory"},
{"type", "user"},
{"name",
"vCard User Search"}],
[]},
{xmlelement, "feature",
[{"var", ?NS_SEARCH}], []},
{xmlelement, "feature",
[{"var", ?NS_VCARD}], []}
]
}]},
ejabberd_router:route(To,
From,
jlib:iq_to_xml(ResIQ))
end;
#iq{type = Type, xmlns = ?NS_DISCO_ITEMS, sub_el = SubEl} ->
case Type of
set ->
Err = jlib:make_error_reply(
Packet, ?ERR_NOT_ALLOWED),
ejabberd_router:route(To, From, Err);
get ->
ResIQ =
IQ#iq{type = result,
sub_el = [{xmlelement,
"query",
[{"xmlns", ?NS_DISCO_INFO}],
[]}]},
ejabberd_router:route(To,
From,
jlib:iq_to_xml(ResIQ))
end;
#iq{type = get, xmlns = ?NS_VCARD, lang = Lang} ->
ResIQ =
IQ#iq{type = result,
sub_el = [{xmlelement,
"vCard",
[{"xmlns", ?NS_VCARD}],
iq_get_vcard(Lang)}]},
ejabberd_router:route(To,
From,
jlib:iq_to_xml(ResIQ));
_ ->
Err = jlib:make_error_reply(Packet,
?ERR_SERVICE_UNAVAILABLE),
ejabberd_router:route(To, From, Err)
end
end.
iq_get_vcard(Lang) ->
[{xmlelement, "FN", [],
[{xmlcdata, "ejabberd/mod_vcard"}]},
{xmlelement, "URL", [],
[{xmlcdata,
"http://ejabberd.jabberstudio.org/"}]},
{xmlelement, "DESC", [],
[{xmlcdata, translate:translate(
Lang,
"ejabberd vCard module\n"
"Copyright (c) 2003-2004 Alexey Shchepin")}]}].
find_xdata_el({xmlelement, _Name, _Attrs, SubEls}) ->
find_xdata_el1(SubEls).
find_xdata_el1([]) ->
false;
find_xdata_el1([{xmlelement, Name, Attrs, SubEls} | Els]) ->
case xml:get_attr_s("xmlns", Attrs) of
?NS_XDATA ->
{xmlelement, Name, Attrs, SubEls};
_ ->
find_xdata_el1(Els)
end;
find_xdata_el1([_ | Els]) ->
find_xdata_el1(Els).
-define(LFIELD(Label, Var),
{xmlelement, "field", [{"label", translate:translate(Lang, Label)},
{"var", Var}], []}).
search_result(Lang, JID, Data) ->
[{xmlelement, "title", [],
[{xmlcdata, translate:translate(Lang, "Results of search in ") ++
jlib:jid_to_string(JID)}]},
{xmlelement, "reported", [],
[?LFIELD("JID", "jid"),
?LFIELD("Full Name", "fn"),
?LFIELD("Given Name", "given"),
?LFIELD("Middle Name", "middle"),
?LFIELD("Family Name", "family"),
?LFIELD("Nickname", "nickname"),
?LFIELD("Birthday", "bday"),
?LFIELD("Country", "ctry"),
?LFIELD("City", "locality"),
?LFIELD("email", "email"),
?LFIELD("Organization Name", "orgname"),
?LFIELD("Organization Unit", "orgunit")
]}] ++ lists:map(fun(E) ->
record_to_item(E#eldap_entry.attributes)
end, search(Data)).
-define(FIELD(Var, Val),
{xmlelement, "field", [{"var", Var}],
[{xmlelement, "value", [],
[{xmlcdata, Val}]}]}).
case_exact_compare(none,_) ->
false;
case_exact_compare(_,none) ->
false;
case_exact_compare(X,Y) ->
X > Y.
ldap_sort_entries(L) ->
lists:sort(fun(E1,E2) ->
case_exact_compare(ldap_get_value(E1,"cn"),ldap_get_value(E2,"cn"))
end,L).
ldap_get_value(E,Attribute) ->
#eldap_entry{attributes = Attributes} = E,
case lists:filter(fun({A,_}) ->
string:equal(A,Attribute)
end,Attributes) of
[{Attr,[Value|_]}] ->
Value;
_ ->
none
end.
ldap_attribute_to_item("uid",Value) ->
[
?FIELD("jid",Value ++ "@" ++ ?MYNAME),
?FIELD("uid",Value),
?FIELD("nickname",Value)
];
ldap_attribute_to_item("displayname",Value) ->
[
?FIELD("fn",Value)
];
ldap_attribute_to_item("sn",Value) ->
[
?FIELD("family",Value)
];
ldap_attribute_to_item("displayname",Value) ->
[
?FIELD("fn",Value)
];
ldap_attribute_to_item("givenname",Value) ->
[
?FIELD("given",Value)
];
ldap_attribute_to_item("initials",Value) ->
[
?FIELD("middle",Value)
];
ldap_attribute_to_item("mail",Value) ->
[
?FIELD("email",Value)
];
ldap_attribute_to_item("o",Value) ->
[
?FIELD("orgname",Value)
];
ldap_attribute_to_item("ou",Value) ->
[
?FIELD("orgunit",Value)
];
ldap_attribute_to_item(_,_) ->
[none].
record_to_item(Attributes) ->
List = lists:append(lists:map(fun({Attr,[Value|_]}) ->
ldap_attribute_to_item(stringprep:tolower(Attr),Value)
end,Attributes)),
FList = [X || X <- List, X /= none],
{xmlelement, "item", [],FList}.
search(Data) ->
Filter = make_filter(Data),
Base = ejabberd_config:get_local_option(ldap_base),
UIDAttr = ejabberd_config:get_local_option(ldap_uidattr),
case eldap:search("mod_vcard_ldap",[{base,Base},
{filter, Filter},
{attributes, []}]) of
#eldap_search_result{entries = E} ->
[X || X <- E, ejabberd_auth:is_user_exists(ldap_get_value(X,UIDAttr)) ];
_ ->
?ERROR_MSG("~p", ["Bad search"])
end.
make_filter(Data) ->
Filter = [X || X <- lists:map(fun(R) ->
make_assertion(R)
end,Data),
X /= none ],
case Filter of
[F] ->
F;
_ ->
eldap:'and'(Filter)
end.
make_assertion("givenName",Value) ->
eldap:substrings("givenName",[{any,Value}]);
make_assertion("cn",Value) ->
eldap:substrings("cn",[{any,Value}]);
make_assertion("sn",Value) ->
eldap:substrings("sn",[{any,Value}]);
make_assertion(Attr, Value) ->
eldap:equalityMatch(Attr,Value).
make_assertion({SVar, [Val]}) ->
LAttr = ldap_attribute(SVar),
case LAttr of
none ->
none;
_ ->
if
is_list(Val) and (Val /= "") ->
make_assertion(LAttr,Val);
true ->
none
end
end.
ldap_attribute("user") ->
"uid";
ldap_attribute("fn") ->
"cn";
ldap_attribute("family") ->
"sn";
ldap_attribute("given") ->
"givenName";
ldap_attribute("middle") ->
"initials";
ldap_attribute("email") ->
"mail";
ldap_attribute("orgname") ->
"o";
ldap_attribute("orgunit") ->
"ou";
ldap_attribute(_) ->
none.
remove_user(User) ->
true.
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