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Native MySQL support. The Erlang MySQL module is needed:
http://support.process-one.net/doc/display/CONTRIBS/Yxa SVN Revision: 482
This commit is contained in:
Mickaël Rémond
parent
7ee3e45df1
commit
8401a5ac55
@ -1,3 +1,7 @@
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2006-01-02 Mickael Remond <mickael.remond@process-one.net>
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* src/odbc/ejabberd_odbc.erl: Native MySQL support
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2005-12-24 Alexey Shchepin <alexey@sevcom.net>
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* src/ejabberd_logger_h.erl: Speed optimizations
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@ -49,7 +49,7 @@ check_password(User, Server, Password) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["select password from users "
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"where username='", Username, "'"]) of
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"where username='", Username, "';"]) of
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{selected, ["password"], [{Password}]} ->
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true;
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_ ->
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@ -66,7 +66,7 @@ check_password(User, Server, Password, StreamID, Digest) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["select password from users "
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"where username='", Username, "'"]) of
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"where username='", Username, "';"]) of
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{selected, ["password"], [{Passwd}]} ->
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DigRes = if
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Digest /= "" ->
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@ -110,7 +110,7 @@ try_register(User, Server, Password) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["insert into users(username, password) "
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"values ('", Username, "', '", Pass, "')"]) of
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"values ('", Username, "', '", Pass, "');"]) of
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{updated, 1} ->
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{atomic, ok};
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_ ->
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@ -141,7 +141,7 @@ get_password(User, Server) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["select password from users "
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"where username='", Username, "'"]) of
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"where username='", Username, "';"]) of
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{selected, ["password"], [{Password}]} ->
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Password;
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_ ->
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@ -158,7 +158,7 @@ get_password_s(User, Server) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["select password from users "
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"where username='", Username, "'"]) of
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"where username='", Username, "';"]) of
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{selected, ["password"], [{Password}]} ->
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Password;
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_ ->
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@ -175,7 +175,7 @@ is_user_exists(User, Server) ->
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case catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["select password from users "
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"where username='", Username, "'"]) of
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"where username='", Username, "';"]) of
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{selected, ["password"], [{_Password}]} ->
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true;
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_ ->
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@ -191,7 +191,7 @@ remove_user(User, Server) ->
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Username = ejabberd_odbc:escape(LUser),
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catch ejabberd_odbc:sql_query(
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jlib:nameprep(Server),
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["delete from users where username='", Username ,"'"]),
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["delete from users where username='", Username ,"';"]),
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ejabberd_hooks:run(remove_user, jlib:nameprep(Server),
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[User, Server])
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end.
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@ -33,6 +33,7 @@
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-define(STATE_KEY, ejabberd_odbc_state).
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-define(MAX_TRANSACTION_RESTARTS, 10).
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-define(MYSQL_PORT, 3306).
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%%%----------------------------------------------------------------------
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%%% API
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@ -114,24 +115,14 @@ init([Host]) ->
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SQLServer = ejabberd_config:get_local_option({odbc_server, Host}),
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case SQLServer of
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{pgsql, Server, DB, Username, Password} ->
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case pgsql:connect(Server, DB, Username, Password) of
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{ok, Ref} ->
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{ok, #state{db_ref = Ref, db_type = pgsql}};
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{error, Reason} ->
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?ERROR_MSG("PostgreSQL connection failed: ~p~n", [Reason]),
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{stop, pgsql_connection_failed}
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end;
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pgsql_connect(Server, DB, Username, Password);
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{mysql, Server, DB, Username, Password} ->
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mysql_connect(Server, DB, Username, Password);
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_ when is_list(SQLServer) ->
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case odbc:connect(SQLServer,[{scrollable_cursors, off}]) of
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{ok, Ref} ->
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{ok, #state{db_ref = Ref, db_type = odbc}};
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{error, Reason} ->
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?ERROR_MSG("ODBC connection (~s) failed: ~p~n",
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[SQLServer, Reason]),
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{stop, odbc_connection_failed}
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end
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odbc_connect(SQLServer)
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end.
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%%----------------------------------------------------------------------
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%% Func: handle_call/3
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%% Returns: {reply, Reply, State} |
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@ -192,7 +183,9 @@ sql_query_internal(State, Query) ->
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odbc ->
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odbc:sql_query(State#state.db_ref, Query);
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pgsql ->
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pgsql_to_odbc(pgsql:squery(State#state.db_ref, Query))
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pgsql_to_odbc(pgsql:squery(State#state.db_ref, Query));
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mysql ->
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mysql_to_odbc(mysql_conn:fetch(State#state.db_ref, Query, self()))
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end.
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execute_transaction(_State, _F, 0) ->
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@ -211,6 +204,35 @@ execute_transaction(State, F, NRestarts) ->
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{atomic, Res}
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end.
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%% == pure ODBC code
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%% part of init/1
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%% Open an ODBC database connection
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odbc_connect(SQLServer) ->
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case odbc:connect(SQLServer,[{scrollable_cursors, off}]) of
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{ok, Ref} ->
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{ok, #state{db_ref = Ref, db_type = odbc}};
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{error, Reason} ->
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?ERROR_MSG("ODBC connection (~s) failed: ~p~n",
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[SQLServer, Reason]),
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{stop, odbc_connection_failed}
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end.
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%% == Native PostgreSQL code
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%% part of init/1
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%% Open a database connection to PostgreSQL
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pgsql_connect(Server, DB, Username, Password) ->
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case pgsql:connect(Server, DB, Username, Password) of
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{ok, Ref} ->
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{ok, #state{db_ref = Ref, db_type = pgsql}};
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{error, Reason} ->
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?ERROR_MSG("PostgreSQL connection failed: ~p~n", [Reason]),
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{stop, pgsql_connection_failed}
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end.
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%% Convert PostgreSQL query result to Erlang ODBC result formalism
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pgsql_to_odbc({ok, PGSQLResult}) ->
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case PGSQLResult of
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[Item] ->
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@ -233,3 +255,33 @@ pgsql_item_to_odbc({error, Error}) ->
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pgsql_item_to_odbc(_) ->
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{updated,undefined}.
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%% == Native MySQL code
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%% part of init/1
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%% Open a database connection to MySQL
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mysql_connect(Server, DB, Username, Password) ->
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NoLogFun = fun(_Level,_Format,_Argument) -> ok end,
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case mysql_conn:start(Server, ?MYSQL_PORT, Username, Password, DB, NoLogFun) of
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{ok, Ref} ->
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{ok, #state{db_ref = Ref, db_type = mysql}};
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{error, Reason} ->
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?ERROR_MSG("MySQL connection failed: ~p~n", [Reason]),
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{stop, mysql_connection_failed}
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end.
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%% Convert MySQL query result to Erlang ODBC result formalism
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mysql_to_odbc({updated, MySQLRes}) ->
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{updated, mysql:get_result_affected_rows(MySQLRes)};
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mysql_to_odbc({data, MySQLRes}) ->
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mysql_item_to_odbc(mysql:get_result_field_info(MySQLRes),
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mysql:get_result_rows(MySQLRes));
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mysql_to_odbc({error, MySQLRes}) ->
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{error, mysql:get_result_reason(MySQLRes)}.
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%% When tabular data is returned, convert it to the ODBC formalism
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mysql_item_to_odbc(Columns, Recs) ->
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%% For now, there is a bug and we do not get the correct value from MySQL
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%% module:
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{selected,
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[element(2, Column) || Column <- Columns],
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[list_to_tuple(Rec) || Rec <- Recs]}.
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