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6d29fa653c
module:fire_event("http-message", {title = "hello"; message = "world"})
Goal is to enable consistent messages from Prosody. Not necessarily
error messages, but warnings or just notices.
This does cause some drift in the purpose of mod_http_errors, but that's
okay.
84 lines
2.6 KiB
Lua
84 lines
2.6 KiB
Lua
module:set_global();
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local server = require "net.http.server";
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local codes = require "net.http.codes";
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local xml_escape = require "util.stanza".xml_escape;
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local render = require "util.interpolation".new("%b{}", xml_escape);
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local show_private = module:get_option_boolean("http_errors_detailed", false);
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local always_serve = module:get_option_boolean("http_errors_always_show", true);
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local default_message = { module:get_option_string("http_errors_default_message", "That's all I know.") };
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local default_messages = {
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[400] = { "What kind of request do you call that??" };
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[403] = { "You're not allowed to do that." };
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[404] = { "Whatever you were looking for is not here. %";
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"Where did you put it?", "It's behind you.", "Keep looking." };
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[500] = { "% Check your error log for more info.";
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"Gremlins.", "It broke.", "Don't look at me." };
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};
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local messages = setmetatable(module:get_option("http_errors_messages", {}), { __index = default_messages });
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local html = [[
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>{title}</title>
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<style>
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body{margin-top:14%;text-align:center;background-color:#f8f8f8;font-family:sans-serif}
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h1{font-size:xx-large}
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p{font-size:x-large}
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p.extra{font-size:large;font-family:courier}
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@media(prefers-color-scheme:dark){
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body{background-color:#161616;color:#eee}
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}
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</style>
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</head>
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<body>
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<h1>{title}</h1>
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<p>{message}</p>
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{extra&<p class="extra">{extra?}</p>}
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</body>
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</html>
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]];
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local function get_page(code, extra)
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local message = messages[code];
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if always_serve or message then
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message = message or default_message;
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return render(html, {
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title = rawget(codes, code) or ("Code "..tostring(code));
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message = message[1]:gsub("%%", function ()
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return message[math.random(2, math.max(#message,2))];
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end);
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extra = extra;
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});
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end
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end
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module:hook_object_event(server, "http-error", function (event)
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if event.response then
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event.response.headers.content_type = "text/html; charset=utf-8";
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end
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return get_page(event.code, (show_private and event.private_message) or event.message or (event.error and event.error.text));
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end);
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module:hook("http-message", function (event)
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if event.response then
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event.response.headers.content_type = "text/html; charset=utf-8";
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end
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return render(html, event);
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end);
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module:hook_object_event(server, "http-error", function (event)
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local request, response = event.request, event.response;
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if request and response and request.path == "/" and response.status_code == 404 then
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response.headers.content_type = "text/html; charset=utf-8";
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return render(html, {
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title = "Prosody is running!";
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message = "Welcome to the XMPP world!";
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});
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end
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end, 1);
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