Permalink
Find file
Fetching contributors…
Cannot retrieve contributors at this time
77 lines (65 sloc) 3.82 KB
%% @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, ReqData, Reason) ->
case webmachine_request:has_response_body(ReqData) of
true -> {webmachine_request:response_body(ReqData), ReqData};
false -> render_error_body(Code, ReqData, Reason)
end.
render_error_body(400, ReqData, _Reason) ->
ReqData1 = wrq:set_resp_header("Content-Type", "text/html", ReqData),
{<<"<HTML><HEAD><TITLE>400 Bad Request</TITLE></HEAD><BODY><H1>Bad Request</H1>The request was invalid.<P><HR><ADDRESS>mochiweb+webmachine web server</ADDRESS></BODY></HTML>">>, ReqData1};
render_error_body(404, ReqData, _Reason) ->
ReqData1 = wrq:set_resp_header("Content-Type", "text/html", ReqData),
{<<"<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>">>, ReqData1};
render_error_body(500, ReqData, Reason) ->
ReqData1 = wrq:set_resp_header("Content-Type", "text/html", ReqData),
Path = wrq:path(ReqData),
error_logger:error_msg("webmachine error: path=~p~n~p~n", [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), ReqData1};
render_error_body(501, ReqData, _Reason) ->
ReqData1 = wrq:set_resp_header("Content-Type", "text/html", ReqData),
Method = wrq:method(ReqData),
error_logger:error_msg("Webmachine does not support method ~p~n", [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>",
[Method]),
{erlang:iolist_to_binary(ErrorStr), ReqData1};
render_error_body(503, ReqData, _Reason) ->
ReqData1 = wrq:set_resp_header("Content-Type", "text/html", ReqData),
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), ReqData1}.