prosody-modules
b3f8435e661c
mod_stanza_counter/mod_stanza_counter_http.lua

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mod_stanza_counter/mod_stanza_counter_http.lua @ 562:b3f8435e661c

mod_stanza_counter_http: added cleanup function (from mod_register_json)
author Marco Cirillo <maranda@lightwitch.org>
date Tue, 17 Jan 2012 01:27:38 +0000
parent 535:39c7115be370
child 568:3d66b0af9a15
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1 -- (C) 2011, Marco Cirillo (LW.Org)
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2 -- Exposes stats on HTTP for the stanza counter module.
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3
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4 module:set_global()
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5
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6 local ports = module:get_option_array("stanza_counter_http_ports", {{ port = 5280 }})
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7
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8 local httpserver = require "net.httpserver"
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9
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10 -- http handlers
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11
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12 local r_200 = "\n<html>\n<head>\n<title>Prosody's Stanza Counter</title>\n<meta name=\"robots\" content=\"noindex, nofollow\" />\n</head>\n\n<body>\n<h3>Incoming and Outgoing stanzas divided per type</h3>\n<p><strong>Incoming IQs</strong>: %d<br/>\n<strong>Outgoing IQs</strong>: %d<br/>\n<strong>Incoming Messages</strong>: %d<br/>\n<strong>Outgoing Messages</strong>: %d<br/>\n<strong>Incoming Presences</strong>: %d<br/>\n<strong>Outgoing Presences</strong>: %d<p>\n</body>\n\n</html>\n"
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13
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14 local r_err = "\n<html>\n<head>\n<title>Prosody's Stanza Counter - 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"
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15
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16 local function res(code, r, h)
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17 local response = {
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18 status = code,
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19 body = r
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20 }
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21
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22 if h then response.headers = h end
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23 return response
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24 end
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25
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26 local function req(method, body, request)
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27 if not prosody.stanza_counter then
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28 local err500 = r_err:format("500", "Stats not found, is the counter module loaded?")
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29 return res(500, err500) end
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30 if method == "GET" then
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31 local forge_res = r_200:format(prosody.stanza_counter.iq["incoming"],
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32 prosody.stanza_counter.iq["outgoing"],
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33 prosody.stanza_counter.message["incoming"],
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34 prosody.stanza_counter.message["outgoing"],
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35 prosody.stanza_counter.presence["incoming"],
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36 prosody.stanza_counter.presence["outgoing"])
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37 return res(200, forge_res)
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38 else
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39 local err405 = r_err:format("405", "Only GET is supported")
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40 return res(405, err405, {["Allow"] = "GET"})
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41 end
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42 end
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43
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44 -- initialization.
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45 -- init http and cleanup interface
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46
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47 function cleanup() -- recycled from mod_register_json, it's handy
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48 module:log("debug", "Cleaning up handlers and stuff as module is being unloaded.")
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49 for _, options in ipairs(ports) do
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50 if options.port then
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51 httpserver.new.http_servers[options.port].handlers[options.path or "stanza-counter"] = nil
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52 end
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53 end
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54
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55 -- if there are no handlers left clean and close the socket, doesn't work with server_event
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56 local event = require "core.configmanager".get("*", "core", "use_libevent")
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57
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58 if not event then
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59 for _, options in ipairs(ports) do
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60 if options.port and not next(httpserver.new.http_servers[options.port].handlers) then
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61 httpserver.new.http_servers[options.port] = nil
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62 if options.interface then
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63 for _, value in ipairs(options.interface) do
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64 if server.getserver(value, options.port) then server.removeserver(value, options.port) end
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65 end
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66 else if server.getserver("*", options.port) then server.removeserver("*", options.port) end end
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67 end
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68 end
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69 end
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70
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71 prosody.events.remove_handler("module-unloaded", cleanup)
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72 end
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73
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74 local function setup()
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75 httpserver.new_from_config(ports, req, { base = "stanza-counter" })
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76 prosody.events.add_handler("module-unloaded", cleanup)
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77 end
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78
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79 -- set it
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80 if prosody.start_time then setup() else module:hook("server-started", setup) end