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mod_invites_page/mod_invites_page.lua @ 4877:adc6241e5d16
mod_measure_process: Report the enforced limit
The soft limit is what the kernel actually enforces, while the hard
limit is is how far you can change the soft limit without privileges.
Unless the process dynamically adjusts the soft limit, knowing the hard
limit is not as useful as knowing the soft limit.
Reporting the soft limit and the number of in-use FDs allows placing
alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 18 Jan 2022 18:55:20 +0100 |
parent | 4408:2c47b8110c48 |
child | 4975:733e5513f691 |
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local st = require "util.stanza"; local url_escape = require "util.http".urlencode; local base_url = "https://"..module.host.."/"; local render_html_template = require"util.interpolation".new("%b{}", st.xml_escape, { urlescape = url_escape; lower = string.lower; classname = function (s) return (s:gsub("%W+", "-")); end; relurl = function (s) if s:match("^%w+://") then return s; end return base_url.."/"..s; end; }); local render_url = require "util.interpolation".new("%b{}", url_escape, { urlescape = url_escape; noscheme = function (url) return (url:gsub("^[^:]+:", "")); end; }); local site_name = module:get_option_string("site_name", module.host); local site_apps; -- Enable/disable built-in invite pages local external_only = module:get_option_boolean("invites_page_external", false); local http_files; if not external_only then -- Load HTTP-serving dependencies if prosody.shutdown then -- not if running under prosodyctl module:depends("http"); http_files = module:depends("http_files"); end -- Calculate automatic base_url default base_url = module.http_url and module:http_url(); -- Load site apps info module:depends("register_apps"); site_apps = module:shared("register_apps/apps"); end local invites = module:depends("invites"); -- Point at eg https://github.com/ge0rg/easy-xmpp-invitation -- This URL must always be absolute, as it is shared standalone local invite_url_template = module:get_option_string("invites_page", base_url and (base_url.."?{invite.token}") or nil); -- This URL is relative to the invite page, or can be absolute local register_url_template = module:get_option_string("invites_registration_page", "register?t={invite.token}&c={app.id}"); local function add_landing_url(invite) if not invite_url_template then return; end -- TODO: we don't currently have a landing page for subscription-only invites, -- so the user will only receive a URI. The client should be able to handle this -- by automatically falling back to a client-specific landing page, per XEP-0401. if not invite.allow_registration then return; end invite.landing_page = render_url(invite_url_template, { host = module.host, invite = invite }); end module:hook("invite-created", add_landing_url); if external_only then return; end local function render_app_urls(apps, invite_vars) local rendered_apps = {}; for _, unrendered_app in ipairs(apps) do local app = setmetatable({}, { __index = unrendered_app }); local template_vars = { app = app, invite = invite_vars, base_url = base_url }; if app.magic_link_format then -- Magic link generally links directly to third-party app.proceed_url = render_url(app.magic_link_format or app.link or "#", template_vars); elseif app.supports_preauth_uri then -- Proceed to a page that guides the user to download, and then -- click the URI button app.proceed_url = render_url("{base_url!}/setup/{app.id}?{invite.token}", template_vars); else -- Manual means proceed to web registration, but include app id -- so it can show post-registration instructions app.proceed_url = render_url(register_url_template, template_vars); end table.insert(rendered_apps, app); end return rendered_apps; end function serve_invite_page(event) local invite_page_template = assert(module:load_resource("html/invite.html")):read("*a"); local invalid_invite_page_template = assert(module:load_resource("html/invite_invalid.html")):read("*a"); event.response.headers["Content-Type"] = "text/html; charset=utf-8"; local invite = invites.get(event.request.url.query); if not invite then return render_html_template(invalid_invite_page_template, { site_name = site_name; static = base_url.."/static"; }); end local template_vars = { site_name = site_name; token = invite.token; uri = invite.uri; type = invite.type; jid = invite.jid; inviter = invite.inviter; static = base_url.."/static"; }; template_vars.apps = render_app_urls(site_apps, template_vars); local invite_page = render_html_template(invite_page_template, template_vars); event.response.headers["Link"] = ([[<%s>; rel="alternate"]]):format(template_vars.uri); return invite_page; end function serve_setup_page(event, app_id) local invite_page_template = assert(module:load_resource("html/client.html")):read("*a"); local invalid_invite_page_template = assert(module:load_resource("html/invite_invalid.html")):read("*a"); event.response.headers["Content-Type"] = "text/html; charset=utf-8"; local invite = invites.get(event.request.url.query); if not invite then return render_html_template(invalid_invite_page_template, { site_name = site_name; static = base_url.."/static"; }); end local template_vars = { site_name = site_name; apps = site_apps; token = invite.token; uri = invite.uri; type = invite.type; jid = invite.jid; static = base_url.."/static"; }; template_vars.app = render_app_urls({ site_apps[app_id] }, template_vars)[1]; local invite_page = render_html_template(invite_page_template, template_vars); return invite_page; end local mime_map = { png = "image/png"; svg = "image/svg+xml"; js = "application/javascript"; }; module:provides("http", { route = { ["GET"] = serve_invite_page; ["GET /setup/*"] = serve_setup_page; ["GET /static/*"] = http_files and http_files.serve({ path = module:get_directory().."/static", mime_map = mime_map }); }; });