Chapril/xmpp.chapril.org-ejabberd
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If problem in config file starting ejabberd: display config lines and stop node (EJAB-1148)

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SVN Revision: 2845
This commit is contained in:
Badlop 2009-12-29 22:49:16 +00:00
parent a89b400c04
commit 1eb2b1f047
1 changed files with 57 additions and 8 deletions
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65
src/ejabberd_config.erl
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@ -101,15 +101,14 @@ get_plain_terms_file(File1) ->
case file:consult(File) of
{ok, Terms} ->
include_config_files(Terms);
{error, {_LineNumber, erl_parse, _ParseMessage} = Reason} ->
ExitText = lists:flatten(File ++ " approximately in the line "
++ file:format_error(Reason)),
?ERROR_MSG("Problem loading ejabberd config file ~n~s", [ExitText]),
exit(ExitText);
{error, {LineNumber, erl_parse, _ParseMessage} = Reason} ->
ExitText = describe_config_problem(File, Reason, LineNumber),
?ERROR_MSG(ExitText, []),
exit_or_halt(ExitText);
{error, Reason} ->
ExitText = lists:flatten(File ++ ": " ++ file:format_error(Reason)),
?ERROR_MSG("Problem loading ejabberd config file ~n~s", [ExitText]),
exit(ExitText)
ExitText = describe_config_problem(File, Reason),
?ERROR_MSG(ExitText, []),
exit_or_halt(ExitText)
end.
%% @doc Convert configuration filename to absolute path.
@ -171,6 +170,56 @@ normalize_hosts([Host|Hosts], PrepHosts) ->
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Errors reading the config file
describe_config_problem(Filename, Reason) ->
Text1 = lists:flatten("Problem loading ejabberd config file " ++ Filename),
Text2 = lists:flatten(" : " ++ file:format_error(Reason)),
ExitText = Text1 ++ Text2,
ExitText.
describe_config_problem(Filename, Reason, LineNumber) ->
Text1 = lists:flatten("Problem loading ejabberd config file " ++ Filename),
Text2 = lists:flatten(" approximately in the line "
++ file:format_error(Reason)),
ExitText = Text1 ++ Text2,
Lines = get_config_lines(Filename, LineNumber, 10, 3),
?ERROR_MSG("Extract from config file: ~n~s", [Lines]),
ExitText.
get_config_lines(Filename, TargetNumber, PreContext, PostContext) ->
{ok, Fd} = file:open(Filename, [read]),
LNumbers = lists:seq(TargetNumber-PreContext, TargetNumber+PostContext),
NextL = file:read_line(Fd),
R = get_config_lines2(Fd, NextL, 1, LNumbers, []),
file:close(Fd),
R.
get_config_lines2(_Fd, eof, _CurrLine, _LNumbers, R) ->
lists:reverse(R);
get_config_lines2(_Fd, _NewLine, _CurrLine, [], R) ->
lists:reverse(R);
get_config_lines2(Fd, {ok, Data}, CurrLine, [NextWanted | LNumbers], R) ->
NextL = file:read_line(Fd),
if
CurrLine >= NextWanted ->
Line2 = [integer_to_list(CurrLine), ": " | Data],
get_config_lines2(Fd, NextL, CurrLine+1, LNumbers, [Line2 | R]);
true ->
get_config_lines2(Fd, NextL, CurrLine+1, [NextWanted | LNumbers], R)
end.
%% If ejabberd isn't yet running in this node, then halt the node
exit_or_halt(ExitText) ->
case [Vsn || {ejabberd, _Desc, Vsn} <- application:which_applications()] of
[] ->
timer:sleep(1000),
halt(ExitText);
[_] ->
exit(ExitText)
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Support for 'include_config_file'