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mod_http_errors: Use util.interpolation to render HTML template

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Kim Alvefur 2017-10-27 13:27:35 +02:00
parent 44860ff0db
commit 78b88eff88
1 changed files with 28 additions and 33 deletions
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61
plugins/mod_http_errors.lua
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@ -2,6 +2,8 @@ module:set_global();
local server = require "net.http.server";
local codes = require "net.http.codes";
local xml_escape = require "util.stanza".xml_escape;
local render = require "util.interpolation".new("%b{}", xml_escape);
local show_private = module:get_option_boolean("http_errors_detailed", false);
local always_serve = module:get_option_boolean("http_errors_always_show", true);
@ -21,53 +23,46 @@ 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>
<meta charset="utf-8">
<title>{title}</title>
<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>$extra</p>
<h1>{title}</h1>
<p>{message}</p>
<p>{extra?}</p>
</body>
</html>
]];
html = html:gsub("%s%s+", "");
local entities = {
["<"] = "&lt;", [">"] = "&gt;", ["&"] = "&amp;",
["'"] = "&apos;", ["\""] = "&quot;", ["\n"] = "<br/>",
};
local function tohtml(plain)
return (plain:gsub("[<>&'\"\n]", entities));
end
local function get_page(code, extra)
local message = messages[code];
if always_serve or message then
message = message or default_message;
return (html:gsub("$(%a+)", {
return render(html, {
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 "");
}));
extra = extra;
});
end
end