Mercurial > prosody-modules
view mod_invites_page/mod_invites_page.lua @ 4919:347e34c3c7e2
mod_rest: Improve error handling during format mapping
Prevents e.g. a nil, error return going directly into e.g. json
encoding, resulting in "null" being returned.
Further handling improvements down the line is needed.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Thu, 07 Apr 2022 17:49:08 +0200 |
parents | 2c47b8110c48 |
children | 733e5513f691 |
line wrap: on
line source
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 }); }; });