mirror of
https://github.com/processone/ejabberd.git
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255 lines
8.8 KiB
Erlang
255 lines
8.8 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : node_pep_odbc.erl
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%%% Author : Christophe Romain <christophe.romain@process-one.net>
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%%% Purpose : Standard PubSub PEP plugin with ODBC backend
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%%% Created : 1 Dec 2007 by Christophe Romain <christophe.romain@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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%%% @doc The module <strong>{@module}</strong> is the pep PubSub plugin.
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%%% <p>PubSub plugin nodes are using the {@link gen_pubsub_node} behaviour.</p>
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-module(node_pep_odbc).
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-behaviour(gen_pubsub_node).
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-author('christophe.romain@process-one.net').
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-include("pubsub.hrl").
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-include("jlib.hrl").
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-include("logger.hrl").
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-export([init/3, terminate/2, options/0, features/0,
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create_node_permission/6, create_node/2, delete_node/1,
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purge_node/2, subscribe_node/8, unsubscribe_node/4,
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publish_item/6, delete_item/4, remove_extra_items/3,
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get_entity_affiliations/2, get_node_affiliations/1,
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get_affiliation/2, set_affiliation/3,
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get_entity_subscriptions/2, get_node_subscriptions/1,
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get_subscriptions/2, set_subscriptions/4,
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get_pending_nodes/2, get_states/1, get_state/2,
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set_state/1, get_items/7, get_items/3, get_item/7,
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get_item/2, set_item/1, get_item_name/3, node_to_path/1,
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path_to_node/1,
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get_entity_subscriptions_for_send_last/2, get_last_items/3]).
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init(Host, ServerHost, Opts) ->
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node_flat_odbc:init(Host, ServerHost, Opts),
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complain_if_modcaps_disabled(ServerHost),
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ok.
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terminate(Host, ServerHost) ->
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node_flat_odbc:terminate(Host, ServerHost),
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ok.
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options() ->
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[{odbc, true}, {rsm, true} | node_pep:options()].
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features() ->
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[<<"rsm">> | node_pep:features()].
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create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
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node_pep:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
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create_node(Nidx, Owner) ->
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node_flat_odbc:create_node(Nidx, Owner),
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{result, {default, broadcast}}.
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delete_node(Nodes) ->
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{result, {_, _, Result}} = node_flat_odbc:delete_node(Nodes),
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{result, {[], Result}}.
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subscribe_node(Nidx, Sender, Subscriber, AccessModel,
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SendLast, PresenceSubscription, RosterGroup, Options) ->
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node_flat_odbc:subscribe_node(Nidx, Sender, Subscriber, AccessModel, SendLast,
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PresenceSubscription, RosterGroup, Options).
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unsubscribe_node(Nidx, Sender, Subscriber, SubId) ->
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case node_flat_odbc:unsubscribe_node(Nidx, Sender, Subscriber, SubId) of
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{error, Error} -> {error, Error};
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{result, _} -> {result, []}
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end.
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publish_item(Nidx, Publisher, Model, MaxItems, ItemId, Payload) ->
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node_flat_odbc:publish_item(Nidx, Publisher, Model, MaxItems, ItemId, Payload).
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remove_extra_items(Nidx, MaxItems, ItemIds) ->
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node_flat_odbc:remove_extra_items(Nidx, MaxItems, ItemIds).
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delete_item(Nidx, Publisher, PublishModel, ItemId) ->
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node_flat_odbc:delete_item(Nidx, Publisher, PublishModel, ItemId).
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purge_node(Nidx, Owner) ->
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node_flat_odbc:purge_node(Nidx, Owner).
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get_entity_affiliations(_Host, Owner) ->
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OwnerKey = jid:tolower(jid:remove_resource(Owner)),
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node_flat_odbc:get_entity_affiliations(OwnerKey, Owner).
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get_node_affiliations(Nidx) ->
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node_flat_odbc:get_node_affiliations(Nidx).
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get_affiliation(Nidx, Owner) ->
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node_flat_odbc:get_affiliation(Nidx, Owner).
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set_affiliation(Nidx, Owner, Affiliation) ->
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node_flat_odbc:set_affiliation(Nidx, Owner, Affiliation).
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get_entity_subscriptions(_Host, Owner) ->
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SubKey = jid:tolower(Owner),
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GenKey = jid:remove_resource(SubKey),
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Host = node_flat_odbc:encode_host(element(2, SubKey)),
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SJ = node_flat_odbc:encode_jid(SubKey),
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GJ = node_flat_odbc:encode_jid(GenKey),
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Query = case SubKey of
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GenKey ->
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[<<"select host, node, type, i.nodeid, jid, "
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"subscriptions from pubsub_state i, pubsub_node n "
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"where i.nodeid = n.nodeid and jid "
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"like '">>, GJ, <<"%' and host like '%@">>, Host, <<"';">>];
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_ ->
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[<<"select host, node, type, i.nodeid, jid, "
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"subscriptions from pubsub_state i, pubsub_node n "
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"where i.nodeid = n.nodeid and jid "
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"in ('">>, SJ, <<"', '">>, GJ, <<"') and host like '%@">>, Host, <<"';">>]
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end,
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Reply = case catch ejabberd_odbc:sql_query_t(Query) of
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{selected,
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[<<"host">>, <<"node">>, <<"type">>, <<"nodeid">>, <<"jid">>, <<"subscriptions">>],
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RItems} ->
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lists:map(fun ([H, N, T, I, J, S]) ->
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O = node_flat_odbc:decode_jid(H),
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Node = nodetree_tree_odbc:raw_to_node(O, [N, <<"">>, T, I]),
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{Node,
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node_flat_odbc:decode_subscriptions(S),
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node_flat_odbc:decode_jid(J)}
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end,
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RItems);
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_ ->
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[]
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end,
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{result, Reply}.
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get_entity_subscriptions_for_send_last(_Host, Owner) ->
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SubKey = jid:tolower(Owner),
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GenKey = jid:remove_resource(SubKey),
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Host = node_flat_odbc:encode_host(element(2, SubKey)),
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SJ = node_flat_odbc:encode_jid(SubKey),
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GJ = node_flat_odbc:encode_jid(GenKey),
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Query = case SubKey of
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GenKey ->
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[<<"select host, node, type, i.nodeid, jid, "
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"subscriptions from pubsub_state i, pubsub_node n, "
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"pubsub_node_option o where i.nodeid = n.nodeid "
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"and n.nodeid = o.nodeid and name='send_last_published_item' and "
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"val='on_sub_and_presence' and jid like '">>,
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GJ, <<"%' and host like '%@">>, Host, <<"';">>];
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_ ->
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[<<"select host, node, type, i.nodeid, jid, "
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"subscriptions from pubsub_state i, pubsub_node n, "
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"pubsub_node_option o where i.nodeid = n.nodeid "
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"and n.nodeid = o.nodeid and name='send_last_published_item' and "
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"val='on_sub_and_presence' and jid in ",
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"('">>, SJ, <<"', '">>, GJ, <<"') and host like '%@">>, Host, <<"';">>]
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end,
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Reply = case catch ejabberd_odbc:sql_query_t(Query) of
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{selected,
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[<<"host">>, <<"node">>, <<"type">>, <<"nodeid">>, <<"jid">>, <<"subscriptions">>],
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RItems} ->
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lists:map(fun ([H, N, T, I, J, S]) ->
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O = node_flat_odbc:decode_jid(H),
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Node = nodetree_tree_odbc:raw_to_node(O, [N, <<"">>, T, I]),
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{Node,
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node_flat_odbc:decode_subscriptions(S),
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node_flat_odbc:decode_jid(J)}
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end,
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RItems);
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_ ->
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[]
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end,
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{result, Reply}.
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get_node_subscriptions(Nidx) ->
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node_flat_odbc:get_node_subscriptions(Nidx).
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get_subscriptions(Nidx, Owner) ->
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node_flat_odbc:get_subscriptions(Nidx, Owner).
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set_subscriptions(Nidx, Owner, Subscription, SubId) ->
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node_flat_odbc:set_subscriptions(Nidx, Owner, Subscription, SubId).
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get_pending_nodes(Host, Owner) ->
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node_flat_odbc:get_pending_nodes(Host, Owner).
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get_states(Nidx) ->
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node_flat_odbc:get_states(Nidx).
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get_state(Nidx, JID) ->
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node_flat_odbc:get_state(Nidx, JID).
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set_state(State) ->
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node_flat_odbc:set_state(State).
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get_items(Nidx, From, RSM) ->
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node_flat_odbc:get_items(Nidx, From, RSM).
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get_items(Nidx, JID, AccessModel, PresenceSubscription, RosterGroup, SubId, RSM) ->
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node_flat_odbc:get_items(Nidx, JID, AccessModel,
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PresenceSubscription, RosterGroup, SubId, RSM).
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get_last_items(Nidx, JID, Count) ->
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node_flat_odbc:get_last_items(Nidx, JID, Count).
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get_item(Nidx, ItemId) ->
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node_flat_odbc:get_item(Nidx, ItemId).
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get_item(Nidx, ItemId, JID, AccessModel, PresenceSubscription, RosterGroup, SubId) ->
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node_flat_odbc:get_item(Nidx, ItemId, JID, AccessModel,
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PresenceSubscription, RosterGroup, SubId).
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set_item(Item) ->
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node_flat_odbc:set_item(Item).
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get_item_name(Host, Node, Id) ->
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node_flat_odbc:get_item_name(Host, Node, Id).
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node_to_path(Node) ->
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node_flat_odbc:node_to_path(Node).
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path_to_node(Path) ->
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node_flat_odbc:path_to_node(Path).
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%%%
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%%% Internal
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%%%
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%% @doc Check mod_caps is enabled, otherwise show warning.
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%% The PEP plugin for mod_pubsub requires mod_caps to be enabled in the host.
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%% Check that the mod_caps module is enabled in that Jabber Host
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%% If not, show a warning message in the ejabberd log file.
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complain_if_modcaps_disabled(ServerHost) ->
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case gen_mod:is_loaded(ServerHost, mod_caps) of
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false ->
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?WARNING_MSG("The PEP plugin is enabled in mod_pubsub "
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"of host ~p. This plugin requires mod_caps "
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"to be enabled, but it isn't.",
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[ServerHost]);
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true -> ok
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end.
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