Chapril/xmpp.chapril.org-ejabberd
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New simple webadmin pages to view mnesia tables information and content

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This commit is contained in:
Badlop 2021-05-14 18:47:05 +02:00
parent 57202d958a
commit 16af8a4739
1 changed files with 100 additions and 3 deletions
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103
src/ejabberd_web_admin.erl
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@ -1152,13 +1152,18 @@ get_node(global, Node, [<<"db">>], Query, Lang) ->
_ -> {unknown, 0, 0}
end,
?XE(<<"tr">>,
[?XC(<<"td">>, STable),
[?XE(<<"td">>,
[?AC(<<"./", STable/binary,
"/">>,
STable)]),
?XE(<<"td">>,
[db_storage_select(STable, Type,
Lang)]),
?XAC(<<"td">>,
?XAE(<<"td">>,
[{<<"class">>, <<"alignright">>}],
(pretty_string_int(Size))),
[?AC(<<"./", STable/binary,
"/1/">>,
(pretty_string_int(Size)))]),
?XAC(<<"td">>,
[{<<"class">>, <<"alignright">>}],
(pretty_string_int(Memory)))])
@ -1189,6 +1194,10 @@ get_node(global, Node, [<<"db">>], Query, Lang) ->
<<"submit">>,
?T("Submit"))])])]))])])]
end;
get_node(global, Node, [<<"db">>, TableName], _Query, Lang) ->
make_table_view(Node, TableName, Lang);
get_node(global, Node, [<<"db">>, TableName, PageNumber], _Query, Lang) ->
make_table_elements_view(Node, TableName, Lang, binary_to_integer(PageNumber));
get_node(global, Node, [<<"backup">>], Query, Lang) ->
HomeDirRaw = case {os:getenv("HOME"), os:type()} of
{EnvHome, _} when is_list(EnvHome) -> list_to_binary(EnvHome);
@ -1732,6 +1741,94 @@ pretty_string_int(String) when is_binary(String) ->
{0, <<"">>}, lists:reverse(binary_to_list(String))),
Result.
%%%==================================
%%%% mnesia table view
make_table_view(Node, STable, Lang) ->
Table = misc:binary_to_atom(STable),
TInfo = ejabberd_cluster:call(Node, mnesia, table_info, [Table, all]),
{value, {storage_type, Type}} = lists:keysearch(storage_type, 1, TInfo),
{value, {size, Size}} = lists:keysearch(size, 1, TInfo),
{value, {memory, Memory}} = lists:keysearch(memory, 1, TInfo),
TableInfo = str:format("~p", [TInfo]),
[?XC(<<"h1">>, (str:translate_and_format(Lang, ?T("Database Tables at ~p"),
[Node]))),
?XAE(<<"table">>, [],
[?XE(<<"tbody">>,
[?XE(<<"tr">>,
[?XCT(<<"td">>, ?T("Name")),
?XAC(<<"td">>, [{<<"class">>, <<"alignright">>}],
STable
)]),
?XE(<<"tr">>,
[?XCT(<<"td">>, ?T("Node")),
?XAC(<<"td">>, [{<<"class">>, <<"alignright">>}],
misc:atom_to_binary(Node)
)]),
?XE(<<"tr">>,
[?XCT(<<"td">>, ?T("Storage Type")),
?XAC(<<"td">>, [{<<"class">>, <<"alignright">>}],
misc:atom_to_binary(Type)
)]),
?XE(<<"tr">>,
[?XCT(<<"td">>, ?T("Elements")),
?XAE(<<"td">>,
[{<<"class">>, <<"alignright">>}],
[?AC(<<"1/">>,
(pretty_string_int(Size)))])
]),
?XE(<<"tr">>,
[?XCT(<<"td">>, ?T("Memory")),
?XAC(<<"td">>, [{<<"class">>, <<"alignright">>}],
(pretty_string_int(Memory))
)])
])]),
?XC(<<"pre">>, TableInfo)].
make_table_elements_view(Node, STable, Lang, PageNumber) ->
Table = misc:binary_to_atom(STable),
TInfo = ejabberd_cluster:call(Node, mnesia, table_info, [Table, all]),
{value, {storage_type, Type}} = lists:keysearch(storage_type, 1, TInfo),
{value, {size, Size}} = lists:keysearch(size, 1, TInfo),
PageSize = 500,
TableContentErl = get_table_content(Node, Table, Type, PageNumber, PageSize),
TableContent = str:format("~p", [TableContentErl]),
PagesLinks = build_elements_pages_list(Size, PageNumber, PageSize),
[?XC(<<"h1">>, (str:translate_and_format(Lang, ?T("Database Tables at ~p"),
[Node]))),
?P, ?AC(<<"../">>, STable), ?P
] ++ PagesLinks ++ [?XC(<<"pre">>, TableContent)].
build_elements_pages_list(Size, PageNumber, PageSize) ->
PagesNumber = calculate_pages_number(Size, PageSize),
PagesSeq = lists:seq(1, PagesNumber),
PagesList = [?AC(<<"../", (integer_to_binary(N))/binary, "/">>,
<<(integer_to_binary(N))/binary, " ">>)
|| N <- PagesSeq],
lists:keyreplace(
[?C(<<(integer_to_binary(PageNumber))/binary, " ">>)],
4,
PagesList,
?C(<<" [", (integer_to_binary(PageNumber))/binary, "] ">>)).
calculate_pages_number(Size, PageSize) ->
Remainer = case Size rem PageSize of
0 -> 0;
_ -> 1
end,
case (Size div PageSize) + Remainer of
1 -> 0;
Res -> Res
end.
get_table_content(Node, Table, _Type, PageNumber, PageSize) ->
Keys1 = lists:sort(ejabberd_cluster:call(Node, mnesia, dirty_all_keys, [Table])),
FirstKeyPos = 1 - PageSize + PageNumber*PageSize,
Keys = lists:sublist(Keys1, FirstKeyPos, PageSize),
Res = [ejabberd_cluster:call(Node, mnesia, dirty_read, [Table, Key])
|| Key <- Keys],
lists:flatten(Res).
%%%==================================
%%%% navigation menu