local st = require "util.stanza"; local httpserver = require "net.httpserver"; local uuid_new = require "util.uuid".generate; local os_time = os.time; local t_insert, t_remove = table.insert, table.remove; local add_task = require "util.timer".add_task; local length_threshold = config.get(module.host, "core", "pastebin_threshold") or 500; local base_url = config.get(module.host, "core", "pastebin_url"); -- Seconds a paste should live for in seconds (config is in hours), default 24 hours local expire_after = math.floor((config.get(module.host, "core", "pastebin_expire_after") or 24) * 3600); local pastes = {}; local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im"; local xmlns_xhtml = "http://www.w3.org/1999/xhtml"; local function pastebin_message(text) local uuid = uuid_new(); pastes[uuid] = { text = text, time = os_time() }; pastes[#pastes+1] = uuid; if not pastes[2] then -- No other pastes, give the timer a kick add_task(expire_after, expire_pastes); end return base_url..uuid; end function handle_request(method, body, request) local pasteid = request.url.path:match("[^/]+$"); if not pasteid or not pastes[pasteid] then return "Invalid paste id, perhaps it expired?"; end --module:log("debug", "Received request, replying: %s", pastes[pasteid].text); return pastes[pasteid].text; end function check_message(data) local origin, stanza = data.origin, data.stanza; local body, bodyindex, htmlindex; for k,v in ipairs(stanza) do if v.name == "body" then body, bodyindex = v, k; elseif v.name == "html" and v.attr.xmlns == xmlns_xhtmlim then htmlindex = k; end end if not body then return; end body = body:get_text(); --module:log("debug", "Body(%s) length: %d", type(body), #(body or "")); if body and #body > length_threshold then local url = pastebin_message(body); module:log("debug", "Pasted message as %s", url); --module:log("debug", " stanza[bodyindex] = %q", tostring( stanza[bodyindex])); stanza[bodyindex][1] = url; local html = st.stanza("html", { xmlns = xmlns_xhtmlim }):tag("body", { xmlns = xmlns_xhtml }); html:tag("p"):text(body:sub(1,150)):up(); html:tag("a", { href = url }):text("[...]"):up(); stanza[htmlindex or #stanza+1] = html; end end module:hook("message/bare", check_message); function expire_pastes(time) time = time or os_time(); -- COMPAT with 0.5 if pastes[1] then pastes[pastes[1]] = nil; t_remove(pastes, 1); if pastes[1] then return (expire_after - (time - pastes[pastes[1]].time)) + 1; end end end local ports = config.get(module.host, "core", "pastebin_ports") or { 5280 }; for _, options in ipairs(ports) do local port, base, ssl, interface = 5280, "pastebin", false, nil; if type(options) == "number" then port = options; elseif type(options) == "table" then port, base, ssl, interface = options.port or 5280, options.path or "pastebin", options.ssl or false, options.interface; elseif type(options) == "string" then base = options; end base_url = base_url or ("http://"..module:get_host()..(port ~= 80 and (":"..port) or "").."/"..base.."/"); httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl } end