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mirror of https://github.com/processone/ejabberd.git synced 2024-11-24 16:23:40 +01:00

Fix migration of old pubsub database (#1409)

This commit is contained in:
Christophe Romain 2017-01-10 12:10:11 +01:00
parent 08d482b064
commit 6ff81946cf
2 changed files with 107 additions and 103 deletions

View File

@ -338,6 +338,7 @@ init([ServerHost, Opts]) ->
end,
pubsub_migrate:update_node_database(Host, ServerHost),
pubsub_migrate:update_state_database(Host, ServerHost),
pubsub_migrate:update_item_database(Host, ServerHost),
pubsub_migrate:update_lastitem_database(Host, ServerHost),
{_, State} = init_send_loop(ServerHost),
{ok, State}.

View File

@ -31,106 +31,8 @@
-export([update_node_database/2, update_state_database/2]).
-export([update_item_database/2, update_lastitem_database/2]).
update_item_database_binary() ->
F = fun () ->
case catch mnesia:read({pubsub_last_item, mnesia:first(pubsub_last_item)}) of
[First] when is_list(First#pubsub_last_item.itemid) ->
?INFO_MSG("Binarization of pubsub items table...", []),
lists:foreach(fun (Id) ->
[Node] = mnesia:read({pubsub_last_item, Id}),
ItemId = iolist_to_binary(Node#pubsub_last_item.itemid),
ok = mnesia:delete({pubsub_last_item, Id}),
ok = mnesia:write(Node#pubsub_last_item{itemid=ItemId})
end,
mnesia:all_keys(pubsub_last_item));
_-> no_need
end
end,
case mnesia:transaction(F) of
{aborted, Reason} ->
?ERROR_MSG("Failed to binarize pubsub items table: ~p", [Reason]);
{atomic, no_need} ->
ok;
{atomic, Result} ->
?INFO_MSG("Pubsub items table has been binarized: ~p", [Result])
end.
update_item_database(_Host, _ServerHost) ->
F = fun() ->
?INFO_MSG("Migration of old pubsub items...", []),
lists:foreach(fun (Key) ->
[Item] = mnesia:read({pubsub_item, Key}),
Payload = [xmlelement_to_xmlel(El) || El <- Item#pubsub_item.payload],
mnesia:write(Item#pubsub_item{payload=Payload})
end,
mnesia:all_keys(pubsub_item))
end,
case mnesia:transaction(F) of
{aborted, Reason} ->
?ERROR_MSG("Failed to migrate old pubsub items to xmlel: ~p", [Reason]);
{atomic, Result} ->
?INFO_MSG("Pubsub items has been migrated: ~p", [Result])
end.
xmlelement_to_xmlel({xmlelement, A, B, C}) when is_list(C) ->
{xmlel, A, B, [xmlelement_to_xmlel(El) || El <- C]};
xmlelement_to_xmlel(El) ->
El.
update_node_database_binary() ->
F = fun () ->
case catch mnesia:read({pubsub_node, mnesia:first(pubsub_node)}) of
[First] when is_list(First#pubsub_node.type) ->
?INFO_MSG("Binarization of pubsub nodes table...", []),
lists:foreach(fun ({H, N}) ->
[Node] = mnesia:read({pubsub_node, {H, N}}),
Type = iolist_to_binary(Node#pubsub_node.type),
BN = case N of
Binary when is_binary(Binary) ->
N;
_ ->
{result, BN1} = mod_pubsub:node_call(H, Type, path_to_node, [N]),
BN1
end,
BP = case [case P of
Binary2 when is_binary(Binary2) -> P;
_ -> element(2, mod_pubsub:node_call(H, Type, path_to_node, [P]))
end
|| P <- Node#pubsub_node.parents] of
[<<>>] -> [];
Parents -> Parents
end,
BH = case H of
{U, S, R} -> {iolist_to_binary(U), iolist_to_binary(S), iolist_to_binary(R)};
String -> iolist_to_binary(String)
end,
Owners = [{iolist_to_binary(U), iolist_to_binary(S), iolist_to_binary(R)} ||
{U, S, R} <- Node#pubsub_node.owners],
ok = mnesia:delete({pubsub_node, {H, N}}),
ok = mnesia:write(Node#pubsub_node{nodeid = {BH, BN},
parents = BP,
type = Type,
owners = Owners});
(_) -> ok
end,
mnesia:all_keys(pubsub_node));
_-> no_need
end
end,
case mnesia:transaction(F) of
{aborted, Reason} ->
?ERROR_MSG("Failed to binarize pubsub node table: ~p", [Reason]);
{atomic, no_need} ->
ok;
{atomic, Result} ->
?INFO_MSG("Pubsub nodes table has been binarized: ~p", [Result])
end.
convert_list_items().
update_node_database(Host, ServerHost) ->
mnesia:del_table_index(pubsub_node, type),
@ -386,7 +288,7 @@ update_node_database(Host, ServerHost) ->
rename_default_nodeplugin();
_ -> ok
end,
update_node_database_binary().
convert_list_nodes().
rename_default_nodeplugin() ->
lists:foreach(fun (Node) ->
@ -402,7 +304,7 @@ update_state_database(_Host, _ServerHost) ->
[stateid, nodeidx, items, affiliation, subscriptions] ->
?INFO_MSG("Upgrading pubsub states table...", []),
F = fun ({pubsub_state, {{U,S,R}, NodeID}, _NodeIdx, Items, Aff, Sub}, Acc) ->
JID = {iolist_to_binary(U), iolist_to_binary(S), iolist_to_binary(R)},
JID = {U,S,R},
Subs = case Sub of
none ->
[];
@ -437,7 +339,108 @@ update_state_database(_Host, _ServerHost) ->
end;
_ ->
ok
end.
end,
convert_list_subscriptions(),
convert_list_states().
update_lastitem_database(_Host, _ServerHost) ->
update_item_database_binary().
convert_list_lasts().
%% binarization from old 2.1.x
convert_list_items() ->
convert_list_records(
pubsub_item,
record_info(fields, pubsub_item),
fun(#pubsub_item{itemid = {I, _}}) -> I end,
fun(#pubsub_item{itemid = {I, Nidx},
creation = {C, CKey},
modification = {M, MKey},
payload = Els} = R) ->
R#pubsub_item{itemid = {bin(I), Nidx},
creation = {C, binusr(CKey)},
modification = {M, binusr(MKey)},
payload = [fxml:to_xmlel(El) || El<-Els]}
end).
convert_list_states() ->
convert_list_records(
pubsub_state,
record_info(fields, pubsub_state),
fun(#pubsub_state{stateid = {{U,_,_}, _}}) -> U end,
fun(#pubsub_state{stateid = {U, Nidx},
items = Is,
affiliation = A,
subscriptions = Ss} = R) ->
R#pubsub_state{stateid = {binusr(U), Nidx},
items = [bin(I) || I<-Is],
affiliation = A,
subscriptions = [{S,bin(Sid)} || {S,Sid}<-Ss]}
end).
convert_list_nodes() ->
convert_list_records(
pubsub_node,
record_info(fields, pubsub_node),
fun(#pubsub_node{nodeid = {{U,_,_}, _}}) -> U;
(#pubsub_node{nodeid = {H, _}}) -> H end,
fun(#pubsub_node{nodeid = {H, N},
id = I,
parents = Ps,
type = T,
owners = Os,
options = Opts} = R) ->
R#pubsub_node{nodeid = {binhost(H), bin(N)},
id = I,
parents = [bin(P) || P<-Ps],
type = bin(T),
owners = [binusr(O) || O<-Os],
options = Opts}
end).
convert_list_subscriptions() ->
convert_list_records(
pubsub_subscription,
record_info(fields, pubsub_subscription),
fun(#pubsub_subscription{subid = I}) -> I end,
fun(#pubsub_subscription{subid = I,
options = Opts} = R) ->
R#pubsub_subscription{subid = bin(I),
options = Opts}
end).
convert_list_lasts() ->
convert_list_records(
pubsub_last_item,
record_info(fields, pubsub_last_item),
fun(#pubsub_last_item{itemid = I}) -> I end,
fun(#pubsub_last_item{itemid = I,
nodeid = Nidx,
creation = {C, CKey},
payload = Payload} = R) ->
R#pubsub_last_item{itemid = bin(I),
nodeid = Nidx,
creation = {C, binusr(CKey)},
payload = fxml:to_xmlel(Payload)}
end).
%% internal tools
convert_list_records(Tab, Fields, DetectFun, ConvertFun) ->
case mnesia:table_info(Tab, attributes) of
Fields ->
ejabberd_config:convert_table_to_binary(
Tab, Fields, set, DetectFun, ConvertFun);
_ ->
?INFO_MSG("Recreating ~p table", [Tab]),
mnesia:transform_table(Tab, ignore, Fields),
convert_list_records(Tab, Fields, DetectFun, ConvertFun)
end.
binhost({U,S,R}) -> binusr({U,S,R});
binhost(L) -> bin(L).
binusr({U,S,R}) -> {bin(U), bin(S), bin(R)}.
bin(L) -> iolist_to_binary(L).