--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/mod_http_errors.lua Thu Apr 26 15:16:29 2012 +0100
@@ -0,0 +1,75 @@
+module:set_global();
+module:depends("http");
+
+local server = require "net.http.server";
+local codes = require "net.http.codes";
+local termcolours = require "util.termcolours";
+
+local show_private = module:get_option_boolean("http_errors_detailed", false);
+
+local default_messages = {
+ [400] = { "What kind of request do you call that??" };
+ [403] = { "You're not allowed to do that." };
+ [404] = { "Whatever you were looking for is not here. %";
+ "Where did you put it?", "It's behind you.", "Keep looking." };
+ [500] = { "% Check your error log for more info.";
+ "Gremlins.", "It broke.", "Don't look at me." };
+};
+
+local messages = setmetatable(module:get_option("http_errors_messages", {}), { __index = default_messages });
+
+local html = [[
+<!DOCTYPE html>
+<html>
+<head>
+ <meta charset="utf-8">
+ <style>
+ body{
+ margin-top:14%;
+ text-align:center;
+ background-color:#F8F8F8;
+ font-family:sans-serif;
+ }
+ h1{
+ font-size:xx-large;
+ }
+ p{
+ font-size:x-large;
+ }
+ p+p { font-size: large; font-family: courier }
+ </style>
+</head>
+<body>
+ <h1>$title</h1>
+ <p>$message</p>
+ <p>$extra</p>
+</body>
+</html>]];
+html = html:gsub("%s%s+", "");
+
+local entities = {
+ ["<"] = "<", [">"] = ">", ["&"] = "&",
+ ["'"] = "'", ["\""] = """, ["\n"] = "<br/>",
+};
+
+local function tohtml(plain)
+ return (plain:gsub("[<>&'\"\n]", entities));
+
+end
+
+local function get_page(code, extra)
+ local message = messages[code];
+ if message then
+ return (html:gsub("$(%a+)", {
+ title = rawget(codes, code) or ("Code "..tostring(code));
+ message = message[1]:gsub("%%", function ()
+ return message[math.random(2, math.max(#message,2))];
+ end);
+ extra = tohtml(extra or "");
+ }));
+ end
+end
+
+module:hook_object_event(server, "http-error", function (event)
+ return get_page(event.code, (show_private and event.private_message) or event.message);
+end);