--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_server_status/mod_server_status.lua Tue Jan 10 19:36:28 2012 +0000
@@ -0,0 +1,140 @@
+-- (C) 2011, Marco Cirillo (LW.Org)
+-- Display server stats in readable XML or JSON format
+
+module:set_global()
+
+local ports = module:get_option_array("server_status_http_ports", {{ port = 5280 }})
+local show_hosts = module:get_option_array("server_status_show_hosts", nil)
+local show_comps = module:get_option_array("server_status_show_comps", nil)
+local json_output = module:get_option_boolean("server_status_json", false)
+
+local httpserver = require "net.httpserver"
+local json_encode = require "util.json".encode
+
+-- code begin
+
+if not prosody.stanza_counter and not show_hosts and not show_comps then
+ module:log ("error", "mod_server_status requires at least one of the following things:")
+ module:log ("error", "mod_stanza_counter loaded, or either server_status_show_hosts or server_status_show_comps configuration values set.")
+ module:log ("error", "check the module wiki at: http://code.google.com/p/prosody-modules/wiki/mod_server_status")
+ return false
+end
+
+local r_err = "\n<html>\n<head>\n<title>Prosody's Server Status - Error %s</title>\n<meta name=\"robots\" content=\"noindex, nofollow\" />\n</head>\n\n<body>\n<h3>%s</h3>\n</body>\n\n</html>\n"
+
+local response_table = {}
+response_table.header = '<?xml version="1.0" encoding="UTF-8" ?>'
+response_table.doc_header = '<document>'
+response_table.doc_closure = '</document>'
+response_table.stanzas = {
+ elem_header = ' <stanzas>', elem_closure = ' </stanzas>',
+ incoming = ' <incoming iq="%d" message="%d" presence="%d" />',
+ outgoing = ' <outgoing iq="%d" message="%d" presence="%d" />'
+}
+response_table.hosts = {
+ elem_header = ' <hosts>', elem_closure = ' </hosts>',
+ status = ' <status name="%s" current="%s" />'
+}
+response_table.comps = {
+ elem_header = ' <components>', elem_closure = ' </components>',
+ status = ' <status name="%s" current="%s" />'
+}
+
+local function forge_response_xml()
+ local hosts_s = {}; local components = {}; local stats = {}; local hosts_stats = {}; local comps_stats = {}
+
+ local function t_builder(t,r) for _, bstring in ipairs(t) do r[#r+1] = bstring end end
+
+ if show_hosts then t_builder(show_hosts, hosts_s) end
+ if show_comps then t_builder(show_comps, components) end
+
+ -- build stanza stats if there
+ if prosody.stanza_counter then
+ stats[1] = response_table.stanzas.elem_header
+ stats[2] = response_table.stanzas.incoming:format(prosody.stanza_counter.iq["incoming"],
+ prosody.stanza_counter.message["incoming"],
+ prosody.stanza_counter.presence["incoming"])
+ stats[3] = response_table.stanzas.outgoing:format(prosody.stanza_counter.iq["outgoing"],
+ prosody.stanza_counter.message["outgoing"],
+ prosody.stanza_counter.presence["outgoing"])
+ stats[4] = response_table.stanzas.elem_closure
+ end
+
+ -- build hosts stats if there
+ if hosts_s[1] then
+ hosts_stats[1] = response_table.hosts.elem_header
+ for _, name in ipairs(hosts_s) do
+ hosts_stats[#hosts_stats+1] = response_table.hosts.status:format(
+ name, hosts[name] and "online" or "offline")
+ end
+ hosts_stats[#hosts_stats+1] = response_table.hosts.elem_closure
+ end
+
+ -- build components stats if there
+ if components[1] then
+ comps_stats[1] = response_table.comps.elem_header
+ for _, name in ipairs(components) do
+ comps_stats[#comps_stats+1] = response_table.comps.status:format(
+ name, hosts[name].modules.component and hosts[name].modules.component.connected and "online" or
+ hosts[name] and hosts[name].modules.component == nil and "online" or "offline")
+ end
+ comps_stats[#comps_stats+1] = response_table.comps.elem_closure
+ end
+
+ -- build xml document
+ local result = {}
+ result[#result+1] = response_table.header; result[#result+1] = response_table.doc_header -- start
+ t_builder(stats, result); t_builder(hosts_stats, result); t_builder(comps_stats, result)
+ result[#result+1] = response_table.doc_closure -- end
+
+ return table.concat(result, "\n")
+end
+
+local function forge_response_json()
+ local result = {}
+
+ if prosody.stanza_counter then result.stanzas = {} ; result.stanzas = prosody.stanza_counter end
+ if show_hosts then
+ result.hosts = {}
+ for _,n in ipairs(show_hosts) do result.hosts[n] = hosts[name] and "online" or "offline" end
+ end
+ if show_comps then
+ result.comps = {}
+ for _,n in ipairs(show_hosts) do
+ result.comps[n] = hosts[name].modules.component and hosts[name].modules.component.connected and "online" or
+ hosts[name] and hosts[name].modules.component == nil and "online" or "offline"
+ end
+ end
+
+ return json_encode(result)
+end
+
+-- http handlers
+
+local function response(code, r, h)
+ local response = { status = code, body = r }
+
+ if h then response.headers = h end
+ return response
+end
+
+local function request(method, body, request)
+ if method == "GET" then
+ if not json_output then return response(200, forge_response_xml()) else return response(200, forge_response_json()) end
+ else
+ local err405 = r_err:format("405", "Only GET is supported")
+ return response(405, err405, {["Allow"] = "GET"})
+ end
+end
+
+-- initialization.
+-- init http interface
+local function setup()
+ httpserver.new_from_config(ports, request, { base = "server-status" })
+end
+
+if prosody.start_time then
+ setup()
+else
+ module:hook("server-started", setup)
+end