Mercurial > prosody-modules
view mod_webpresence/mod_webpresence.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> |
---|---|
date | Tue, 18 Jan 2022 18:55:20 +0100 |
parents | 1903add39b7c |
children |
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module:depends("http"); local jid_split = require "util.jid".prepped_split; local b64 = require "util.encodings".base64.encode; local sha1 = require "util.hashes".sha1; local stanza = require "util.stanza".stanza; local json = require "util.json".encode_ordered; local function require_resource(name) local icon_path = module:get_option_string("presence_icons", "icons"); local f, err = module:load_resource(icon_path.."/"..name); if f then return f:read("*a"); end module:log("warn", "Failed to open image file %s", icon_path..name); return ""; end local statuses = { online = {}, away = {}, xa = {}, dnd = {}, chat = {}, offline = {} }; local function handle_request(event, path) local status, message; local jid, type = path:match("([^/]+)/?(.*)$"); if jid then local user, host = jid_split(jid); if host and not user then user, host = host, event.request.headers.host; if host then host = host:gsub(":%d+$", ""); end end if user and host then local user_sessions = hosts[host] and hosts[host].sessions[user]; if user_sessions and user_sessions.top_resources then status = user_sessions.top_resources[1]; if status and status.presence then message = status.presence:child_with_name("status"); status = status.presence:child_with_name("show"); if not status then status = "online"; else status = status:get_text(); end if message then message = message:get_text(); end end end end end status = status or "offline"; statuses[status].image = function() return { status_code = 200, headers = { content_type = "image/png" }, body = require_resource("status_"..status..".png") }; end; statuses[status].html = function() local jid_hash = sha1(jid, true); return { status_code = 200, headers = { content_type = "text/html" }, body = [[<!DOCTYPE html>]].. tostring( stanza("html") :tag("head") :tag("title"):text("XMPP Status Page for "..jid):up():up() :tag("body") :tag("div", { id = jid_hash.."_status", class = "xmpp_status" }) :tag("img", { id = jid_hash.."_img", class = "xmpp_status_image xmpp_status_"..status, src = "data:image/png;base64,"..b64(require_resource("status_"..status..".png")) }):up() :tag("span", { id = jid_hash.."_status_name", class = "xmpp_status_name" }) :text("\194\160"..status):up() :tag("span", { id = jid_hash.."_status_message", class = "xmpp_status_message" }) :text(message and "\194\160"..message.."" or "") ) }; end; statuses[status].text = function() return { status_code = 200, headers = { content_type = "text/plain" }, body = status }; end; statuses[status].message = function() return { status_code = 200, headers = { content_type = "text/plain" }, body = (message and message or "") }; end; statuses[status].json = function() return { status_code = 200, headers = { content_type = "application/json" }, body = json({ jid = jid, show = status, status = (message and message or "null") }) }; end; statuses[status].xml = function() return { status_code = 200, headers = { content_type = "application/xml" }, body = [[<?xml version="1.0" encoding="utf-8"?>]].. tostring( stanza("result") :tag("jid"):text(jid):up() :tag("show"):text(status):up() :tag("status"):text(message) ) }; end if ((type == "") or (not statuses[status][type])) then type = "image" end; return statuses[status][type](); end module:provides("http", { default_path = "/status"; route = { ["GET /*"] = handle_request; }; });