72 lines
3.3 KiB
Erlang
72 lines
3.3 KiB
Erlang
%% @author Justin Sheehy <justin@basho.com>
|
|
%% @author Andy Gross <andy@basho.com>
|
|
%% @author Jeremy Latt <jeremy@basho.com>
|
|
%% @copyright 2007-2008 Basho Technologies
|
|
%%
|
|
%% Licensed under the Apache License, Version 2.0 (the "License");
|
|
%% you may not use this file except in compliance with the License.
|
|
%% You may obtain a copy of the License at
|
|
%%
|
|
%% http://www.apache.org/licenses/LICENSE-2.0
|
|
%%
|
|
%% Unless required by applicable law or agreed to in writing, software
|
|
%% distributed under the License is distributed on an "AS IS" BASIS,
|
|
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
%% See the License for the specific language governing permissions and
|
|
%% limitations under the License.
|
|
|
|
|
|
%% @doc Some fairly minimal error message formatters.
|
|
|
|
-module(webmachine_error_handler).
|
|
-author('Justin Sheehy <justin@basho.com>').
|
|
-author('Andy Gross <andy@basho.com>').
|
|
-author('Jeremy Latt <jeremy@basho.com>').
|
|
|
|
-export([render_error/3]).
|
|
|
|
render_error(Code, Req, Reason) ->
|
|
case Req:has_response_body() of
|
|
true -> Req:response_body();
|
|
false -> render_error_body(Code, Req, Reason)
|
|
end.
|
|
|
|
render_error_body(404, Req, _Reason) ->
|
|
Req:add_response_header("Content-Type", "text/html"),
|
|
<<"<HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD><BODY><H1>Not Found</H1>The requested document was not found on this server.<P><HR><ADDRESS>mochiweb+webmachine web server</ADDRESS></BODY></HTML>">>;
|
|
|
|
render_error_body(500, Req, Reason) ->
|
|
Req:add_response_header("Content-Type", "text/html"),
|
|
error_logger:error_msg("webmachine error: path=~p~n~p~n", [Req:path(), Reason]),
|
|
STString = io_lib:format("~p", [Reason]),
|
|
ErrorStart = "<html><head><title>500 Internal Server Error</title></head><body><h1>Internal Server Error</h1>The server encountered an error while processing this request:<br><pre>",
|
|
ErrorEnd = "</pre><P><HR><ADDRESS>mochiweb+webmachine web server</ADDRESS></body></html>",
|
|
ErrorIOList = [ErrorStart,STString,ErrorEnd],
|
|
erlang:iolist_to_binary(ErrorIOList);
|
|
|
|
render_error_body(501, Req, _Reason) ->
|
|
Req:add_response_header("Content-Type", "text/html"),
|
|
error_logger:error_msg("Webmachine does not support method ~p~n",
|
|
[Req:method()]),
|
|
ErrorStr = io_lib:format("<html><head><title>501 Not Implemented</title>"
|
|
"</head><body><h1>Internal Server Error</h1>"
|
|
"The server does not support the ~p method.<br>"
|
|
"<P><HR><ADDRESS>mochiweb+webmachine web server"
|
|
"</ADDRESS></body></html>",
|
|
[Req:method()]),
|
|
erlang:iolist_to_binary(ErrorStr);
|
|
|
|
render_error_body(503, Req, _Reason) ->
|
|
Req:add_response_header("Content-Type", "text/html"),
|
|
error_logger:error_msg("Webmachine cannot fulfill"
|
|
" the request at this time"),
|
|
ErrorStr = "<html><head><title>503 Service Unavailable</title>"
|
|
"</head><body><h1>Service Unavailable</h1>"
|
|
"The server is currently unable to handle "
|
|
"the request due to a temporary overloading "
|
|
"or maintenance of the server.<br>"
|
|
"<P><HR><ADDRESS>mochiweb+webmachine web server"
|
|
"</ADDRESS></body></html>",
|
|
list_to_binary(ErrorStr).
|
|
|