248 lines
6.2 KiB
Erlang
248 lines
6.2 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_config.erl
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%%% Author : Alexey Shchepin <alexey@sevcom.net>
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%%% Purpose : Load config file
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%%% Created : 14 Dec 2002 by Alexey Shchepin <alexey@sevcom.net>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(ejabberd_config).
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-author('alexey@sevcom.net').
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-vsn('$Revision$ ').
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-export([start/0, load_file/1,
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add_global_option/2, add_local_option/2,
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get_global_option/1, get_local_option/1]).
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-include("ejabberd.hrl").
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-record(config, {key, value}).
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-record(local_config, {key, value}).
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-record(state, {opts = [],
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hosts = [],
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override_local = false,
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override_global = false,
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override_acls = false}).
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start() ->
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mnesia:create_table(config,
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[{disc_copies, [node()]},
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{attributes, record_info(fields, config)}]),
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mnesia:add_table_copy(config, node(), ram_copies),
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mnesia:create_table(local_config,
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[{disc_copies, [node()]},
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{local_content, true},
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{attributes, record_info(fields, local_config)}]),
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mnesia:add_table_copy(local_config, node(), ram_copies),
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Config = case application:get_env(config) of
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{ok, Path} -> Path;
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undefined ->
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case os:getenv("EJABBERD_CONFIG_PATH") of
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false ->
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?CONFIG_PATH;
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Path ->
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Path
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end
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end,
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load_file(Config).
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load_file(File) ->
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case file:consult(File) of
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{ok, Terms} ->
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State = lists:foldl(fun search_hosts/2, #state{}, Terms),
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Res = lists:foldl(fun process_term/2, State, Terms),
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set_opts(Res);
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{error, Reason} ->
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?ERROR_MSG("Can't load config file ~p: ~p", [File, Reason]),
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exit(file:format_error(Reason))
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end.
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search_hosts(Term, State) ->
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case Term of
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{host, Host} ->
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if
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State#state.hosts == [] ->
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add_hosts_to_option([Host], State);
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true ->
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?ERROR_MSG("Can't load config file: "
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"too many hosts definitions", []),
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exit("too many hosts definitions")
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end;
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{hosts, Hosts} ->
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if
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State#state.hosts == [] ->
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add_hosts_to_option(Hosts, State);
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true ->
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?ERROR_MSG("Can't load config file: "
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"too many hosts definitions", []),
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exit("too many hosts definitions")
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end;
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_ ->
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State
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end.
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add_hosts_to_option(Hosts, State) ->
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PrepHosts = normalize_hosts(Hosts),
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add_option(hosts, PrepHosts, State#state{hosts = PrepHosts}).
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normalize_hosts(Hosts) ->
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normalize_hosts(Hosts,[]).
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normalize_hosts([], PrepHosts) ->
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lists:reverse(PrepHosts);
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normalize_hosts([Host|Hosts], PrepHosts) ->
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case jlib:nodeprep(Host) of
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error ->
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?ERROR_MSG("Can't load config file: "
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"invalid host name [~p]", [Host]),
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exit("invalid hostname");
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PrepHost ->
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normalize_hosts(Hosts, [PrepHost|PrepHosts])
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end.
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process_term(Term, State) ->
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case Term of
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override_global ->
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State#state{override_global = true};
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override_local ->
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State#state{override_local = true};
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override_acls ->
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State#state{override_acls = true};
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{acl, ACLName, ACLData} ->
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process_host_term(Term, global, State);
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{access, RuleName, Rules} ->
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process_host_term(Term, global, State);
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{shaper, Name, Data} ->
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%lists:foldl(fun(Host, S) -> process_host_term(Term, Host, S) end,
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% State, State#state.hosts);
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process_host_term(Term, global, State);
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{host, Host} ->
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State;
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{hosts, Hosts} ->
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State;
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{host_config, Host, Terms} ->
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lists:foldl(fun(T, S) -> process_host_term(T, Host, S) end,
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State, Terms);
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{listen, Val} ->
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add_option(listen, Val, State);
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{outgoing_s2s_port, Port} ->
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add_option(outgoing_s2s_port, Port, State);
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{s2s_use_starttls, Port} ->
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add_option(s2s_use_starttls, Port, State);
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{s2s_certfile, CertFile} ->
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add_option(s2s_certfile, CertFile, State);
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{domain_certfile, Domain, CertFile} ->
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add_option({domain_certfile, Domain}, CertFile, State);
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{Opt, Val} ->
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lists:foldl(fun(Host, S) -> process_host_term(Term, Host, S) end,
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State, State#state.hosts)
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end.
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process_host_term(Term, Host, State) ->
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case Term of
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{acl, ACLName, ACLData} ->
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State#state{opts =
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[acl:to_record(Host, ACLName, ACLData) | State#state.opts]};
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{access, RuleName, Rules} ->
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State#state{opts = [#config{key = {access, RuleName, Host},
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value = Rules} |
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State#state.opts]};
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{shaper, Name, Data} ->
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State#state{opts = [#config{key = {shaper, Name, Host},
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value = Data} |
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State#state.opts]};
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{host, Host} ->
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State;
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{hosts, Hosts} ->
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State;
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{Opt, Val} ->
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add_option({Opt, Host}, Val, State)
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end.
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add_option(Opt, Val, State) ->
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Table = case Opt of
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hosts ->
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config;
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language ->
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config;
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_ ->
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local_config
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end,
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case Table of
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config ->
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State#state{opts = [#config{key = Opt, value = Val} |
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State#state.opts]};
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local_config ->
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State#state{opts = [#local_config{key = Opt, value = Val} |
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State#state.opts]}
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end.
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set_opts(State) ->
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Opts = lists:reverse(State#state.opts),
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F = fun() ->
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if
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State#state.override_global ->
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Ksg = mnesia:all_keys(config),
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lists:foreach(fun(K) ->
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mnesia:delete({config, K})
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end, Ksg);
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true ->
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ok
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end,
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if
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State#state.override_local ->
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Ksl = mnesia:all_keys(local_config),
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lists:foreach(fun(K) ->
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mnesia:delete({local_config, K})
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end, Ksl);
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true ->
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ok
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end,
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if
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State#state.override_acls ->
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Ksa = mnesia:all_keys(acl),
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lists:foreach(fun(K) ->
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mnesia:delete({acl, K})
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end, Ksa);
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true ->
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ok
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end,
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lists:foreach(fun(R) ->
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mnesia:write(R)
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end, Opts)
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end,
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{atomic, _} = mnesia:transaction(F).
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add_global_option(Opt, Val) ->
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mnesia:transaction(fun() ->
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mnesia:write(#config{key = Opt,
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value = Val})
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end).
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add_local_option(Opt, Val) ->
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mnesia:transaction(fun() ->
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mnesia:write(#local_config{key = Opt,
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value = Val})
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end).
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get_global_option(Opt) ->
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case ets:lookup(config, Opt) of
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[#config{value = Val}] ->
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Val;
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_ ->
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undefined
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end.
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get_local_option(Opt) ->
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case ets:lookup(local_config, Opt) of
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[#local_config{value = Val}] ->
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Val;
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_ ->
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undefined
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end.
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