mirror of
https://github.com/processone/ejabberd.git
synced 2024-11-10 15:47:30 +01:00
241 lines
7.5 KiB
Erlang
241 lines
7.5 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : ejabberd_sql_sup.erl
|
|
%%% Author : Alexey Shchepin <alexey@process-one.net>
|
|
%%% Purpose : SQL connections supervisor
|
|
%%% Created : 22 Dec 2004 by Alexey Shchepin <alexey@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
|
|
%%%
|
|
%%% This program is free software; you can redistribute it and/or
|
|
%%% modify it under the terms of the GNU General Public License as
|
|
%%% published by the Free Software Foundation; either version 2 of the
|
|
%%% License, or (at your option) any later version.
|
|
%%%
|
|
%%% This program is distributed in the hope that it will be useful,
|
|
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
%%% General Public License for more details.
|
|
%%%
|
|
%%% You should have received a copy of the GNU General Public License along
|
|
%%% with this program; if not, write to the Free Software Foundation, Inc.,
|
|
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(ejabberd_sql_sup).
|
|
|
|
-behaviour(ejabberd_config).
|
|
|
|
-author('alexey@process-one.net').
|
|
|
|
-export([start_link/1, init/1, add_pid/2, remove_pid/2,
|
|
get_pids/1, get_random_pid/1, transform_options/1,
|
|
opt_type/1]).
|
|
|
|
-include("ejabberd.hrl").
|
|
-include("logger.hrl").
|
|
|
|
-define(PGSQL_PORT, 5432).
|
|
|
|
-define(MYSQL_PORT, 3306).
|
|
|
|
-define(DEFAULT_POOL_SIZE, 10).
|
|
|
|
-define(DEFAULT_SQL_START_INTERVAL, 30).
|
|
|
|
-define(CONNECT_TIMEOUT, 500).
|
|
|
|
-record(sql_pool, {host, pid}).
|
|
|
|
start_link(Host) ->
|
|
ejabberd_mnesia:create(?MODULE, sql_pool,
|
|
[{ram_copies, [node()]}, {type, bag},
|
|
{local_content, true},
|
|
{attributes, record_info(fields, sql_pool)}]),
|
|
mnesia:add_table_copy(sql_pool, node(), ram_copies),
|
|
F = fun () -> mnesia:delete({sql_pool, Host}) end,
|
|
mnesia:ets(F),
|
|
supervisor:start_link({local,
|
|
gen_mod:get_module_proc(Host, ?MODULE)},
|
|
?MODULE, [Host]).
|
|
|
|
init([Host]) ->
|
|
StartInterval = ejabberd_config:get_option(
|
|
{sql_start_interval, Host},
|
|
fun(I) when is_integer(I), I>0 -> I end,
|
|
?DEFAULT_SQL_START_INTERVAL),
|
|
Type = ejabberd_config:get_option({sql_type, Host},
|
|
fun(mysql) -> mysql;
|
|
(pgsql) -> pgsql;
|
|
(sqlite) -> sqlite;
|
|
(mssql) -> mssql;
|
|
(odbc) -> odbc
|
|
end, odbc),
|
|
PoolSize = get_pool_size(Type, Host),
|
|
case Type of
|
|
sqlite ->
|
|
check_sqlite_db(Host);
|
|
mssql ->
|
|
ejabberd_sql:init_mssql(Host);
|
|
_ ->
|
|
ok
|
|
end,
|
|
|
|
{ok,
|
|
{{one_for_one, PoolSize * 10, 1},
|
|
lists:map(fun (I) ->
|
|
{I,
|
|
{ejabberd_sql, start_link,
|
|
[Host, StartInterval * 1000]},
|
|
transient, 2000, worker, [?MODULE]}
|
|
end,
|
|
lists:seq(1, PoolSize))}}.
|
|
|
|
get_pids(Host) ->
|
|
Rs = mnesia:dirty_read(sql_pool, Host),
|
|
[R#sql_pool.pid || R <- Rs].
|
|
|
|
get_random_pid(Host) ->
|
|
case get_pids(Host) of
|
|
[] -> none;
|
|
Pids -> lists:nth(erlang:phash(p1_time_compat:unique_integer(), length(Pids)), Pids)
|
|
end.
|
|
|
|
add_pid(Host, Pid) ->
|
|
F = fun () ->
|
|
mnesia:write(#sql_pool{host = Host, pid = Pid})
|
|
end,
|
|
mnesia:ets(F).
|
|
|
|
remove_pid(Host, Pid) ->
|
|
F = fun () ->
|
|
mnesia:delete_object(#sql_pool{host = Host, pid = Pid})
|
|
end,
|
|
mnesia:ets(F).
|
|
|
|
-spec get_pool_size(atom(), binary()) -> pos_integer().
|
|
get_pool_size(SQLType, Host) ->
|
|
PoolSize = ejabberd_config:get_option(
|
|
{sql_pool_size, Host},
|
|
fun(I) when is_integer(I), I>0 -> I end,
|
|
case SQLType of
|
|
sqlite -> 1;
|
|
_ -> ?DEFAULT_POOL_SIZE
|
|
end),
|
|
if PoolSize > 1 andalso SQLType == sqlite ->
|
|
?WARNING_MSG("it's not recommended to set sql_pool_size > 1 for "
|
|
"sqlite, because it may cause race conditions", []);
|
|
true ->
|
|
ok
|
|
end,
|
|
PoolSize.
|
|
|
|
transform_options(Opts) ->
|
|
lists:foldl(fun transform_options/2, [], Opts).
|
|
|
|
transform_options({odbc_server, {Type, Server, Port, DB, User, Pass}}, Opts) ->
|
|
[{sql_type, Type},
|
|
{sql_server, Server},
|
|
{sql_port, Port},
|
|
{sql_database, DB},
|
|
{sql_username, User},
|
|
{sql_password, Pass}|Opts];
|
|
transform_options({odbc_server, {mysql, Server, DB, User, Pass}}, Opts) ->
|
|
transform_options({odbc_server, {mysql, Server, ?MYSQL_PORT, DB, User, Pass}}, Opts);
|
|
transform_options({odbc_server, {pgsql, Server, DB, User, Pass}}, Opts) ->
|
|
transform_options({odbc_server, {pgsql, Server, ?PGSQL_PORT, DB, User, Pass}}, Opts);
|
|
transform_options({odbc_server, {sqlite, DB}}, Opts) ->
|
|
transform_options({odbc_server, {sqlite, DB}}, Opts);
|
|
transform_options(Opt, Opts) ->
|
|
[Opt|Opts].
|
|
|
|
check_sqlite_db(Host) ->
|
|
DB = ejabberd_sql:sqlite_db(Host),
|
|
File = ejabberd_sql:sqlite_file(Host),
|
|
Ret = case filelib:ensure_dir(File) of
|
|
ok ->
|
|
case sqlite3:open(DB, [{file, File}]) of
|
|
{ok, _Ref} -> ok;
|
|
{error, {already_started, _Ref}} -> ok;
|
|
{error, R} -> {error, R}
|
|
end;
|
|
Err ->
|
|
Err
|
|
end,
|
|
case Ret of
|
|
ok ->
|
|
sqlite3:sql_exec(DB, "pragma foreign_keys = on"),
|
|
case sqlite3:list_tables(DB) of
|
|
[] ->
|
|
create_sqlite_tables(DB),
|
|
sqlite3:close(DB),
|
|
ok;
|
|
[_H | _] ->
|
|
ok
|
|
end;
|
|
{error, Reason} ->
|
|
?INFO_MSG("Failed open sqlite database, reason ~p", [Reason])
|
|
end.
|
|
|
|
create_sqlite_tables(DB) ->
|
|
SqlDir = case code:priv_dir(ejabberd) of
|
|
{error, _} ->
|
|
?SQL_DIR;
|
|
PrivDir ->
|
|
filename:join(PrivDir, "sql")
|
|
end,
|
|
File = filename:join(SqlDir, "lite.sql"),
|
|
case file:open(File, [read, binary]) of
|
|
{ok, Fd} ->
|
|
Qs = read_lines(Fd, File, []),
|
|
ok = sqlite3:sql_exec(DB, "begin"),
|
|
[ok = sqlite3:sql_exec(DB, Q) || Q <- Qs],
|
|
ok = sqlite3:sql_exec(DB, "commit");
|
|
{error, Reason} ->
|
|
?INFO_MSG("Failed to read SQLite schema file: ~s",
|
|
[file:format_error(Reason)])
|
|
end.
|
|
|
|
read_lines(Fd, File, Acc) ->
|
|
case file:read_line(Fd) of
|
|
{ok, Line} ->
|
|
NewAcc = case str:strip(str:strip(Line, both, $\r), both, $\n) of
|
|
<<"--", _/binary>> ->
|
|
Acc;
|
|
<<>> ->
|
|
Acc;
|
|
_ ->
|
|
[Line|Acc]
|
|
end,
|
|
read_lines(Fd, File, NewAcc);
|
|
eof ->
|
|
QueryList = str:tokens(list_to_binary(lists:reverse(Acc)), <<";">>),
|
|
lists:flatmap(
|
|
fun(Query) ->
|
|
case str:strip(str:strip(Query, both, $\r), both, $\n) of
|
|
<<>> ->
|
|
[];
|
|
Q ->
|
|
[<<Q/binary, $;>>]
|
|
end
|
|
end, QueryList);
|
|
{error, _} = Err ->
|
|
?ERROR_MSG("Failed read from lite.sql, reason: ~p", [Err]),
|
|
[]
|
|
end.
|
|
|
|
opt_type(sql_pool_size) ->
|
|
fun (I) when is_integer(I), I > 0 -> I end;
|
|
opt_type(sql_start_interval) ->
|
|
fun (I) when is_integer(I), I > 0 -> I end;
|
|
opt_type(sql_type) ->
|
|
fun (mysql) -> mysql;
|
|
(pgsql) -> pgsql;
|
|
(sqlite) -> sqlite;
|
|
(mssql) -> mssql;
|
|
(odbc) -> odbc
|
|
end;
|
|
opt_type(_) ->
|
|
[sql_pool_size, sql_start_interval, sql_type].
|