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prosody
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plugins/mod_http_errors.lua @ 12960:31b22cc221b5
mod_pubsub, mod_pep: Support per-node configurable inclusion of publisher
This matches ejabberd's behaviour, using the 'pubsub#itemreply' config option.
Although the current definition of this option in the specification is not
as clear as it could be, I think matching what existing deployments do is the
best option to resolve the ambiguity and reduce fragmentation.
We should update the spec to be clearer about how to use and interpret this
option.
The 'expose_publisher' option for mod_pubsub is now an override (always expose
or never expose). If unset, it will use the per-node config (which defaults to
not exposing).
Thanks to Link Mauve, edhelas and goffi for sparking this feature.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Wed, 22 Mar 2023 11:39:19 +0000 (21 months ago) |
parent | 11820:0375ef78ed64 |
child | 12977:74b9e05af71e |
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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); local default_message = { module:get_option_string("http_errors_default_message", "That's all I know.") }; 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." }; ["/"] = { "A study in simplicity."; "Better catch it!"; "Don't just stand there, go after it!"; "Well, say something, before it runs too far!"; "Welcome to the world of XMPP!"; "You can do anything in XMPP!"; -- "The only limit is XML."; "You can do anything with Prosody!"; -- the only limit is memory? }; }; local messages = setmetatable(module:get_option("http_errors_messages", {}), { __index = default_messages }); local html = [[ <!DOCTYPE html> <html> <head> <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.warning>span{font-size:large;background-color:yellow} p.extra{font-size:large;font-family:courier} @media(prefers-color-scheme:dark){ body{background-color:#161616;color:#eee} p.warning>span{background-color:inherit;color:yellow} } </style> </head> <body> <h1>{icon?{icon_raw!?}} {title}</h1> <p>{message}</p> {warning&<p class="warning"><span>⚠ {warning?} ⚠</span></p>} {extra&<p class="extra">{extra?}</p>} </body> </html> ]]; local function get_page(code, extra) local message = messages[code]; if always_serve or message then message = message or default_message; 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 = extra; }); end end -- Main error page handler module:hook_object_event(server, "http-error", function (event) if event.response then event.response.headers.content_type = "text/html; charset=utf-8"; end return get_page(event.code, (show_private and event.private_message) or event.message or (event.error and event.error.text)); end); -- Way to use the template for other things so to give a consistent appearance module:hook("http-message", function (event) if event.response then event.response.headers.content_type = "text/html; charset=utf-8"; end return render(html, event); end, -1); local icon = [[ <svg xmlns="http://www.w3.org/2000/svg" height="0.7em" viewBox="0 0 480 480" width="0.7em"> <rect fill="#6197df" height="220" rx="60" ry="60" width="220" x="10" y="10"></rect> <rect fill="#f29b00" height="220" rx="60" ry="60" width="220" x="10" y="240"></rect> <rect fill="#f29b00" height="220" rx="60" ry="60" width="220" x="240" y="10"></rect> <rect fill="#6197df" height="220" rx="60" ry="60" width="220" x="240" y="240"></rect> </svg> ]]; -- Something nicer shown instead of 404 at the root path, if nothing else handles this path module:hook_object_event(server, "http-error", function (event) local request, response = event.request, event.response; if request and response and request.path == "/" and response.status_code == 404 then response.status_code = 200; response.headers.content_type = "text/html; charset=utf-8"; local message = messages["/"]; return render(html, { icon_raw = icon, title = "Prosody is running!"; message = message[math.random(#message)]; }); end end, 1);