Mercurial > prosody-modules
annotate mod_server_status/mod_server_status.lua @ 4976:75b6e5df65f9
various: Improve error reporting if missing file server module on 0.12
If there is some error loading net.http.files then it would be swallowed
by the pcall and then it would proceed to trying mod_http_files, which
might cause unexpected behavior on 0.12
Ref #1765
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 18 Jul 2022 22:47:54 +0200 |
parents | 7dbde05b48a9 |
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1 -- (C) 2011, Marco Cirillo (LW.Org) |
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2 -- Display server stats in readable XML or JSON format |
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3 |
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mod_server_status: updated to current HTTP API.
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4 module:depends("http") |
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5 |
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mod_server_status: fix code typo, get_option_array was used instead of get_option_string
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6 local base_path = module:get_option_string("server_status_basepath", "/server-status/") |
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7 local show_hosts = module:get_option_array("server_status_show_hosts", nil) |
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8 local show_comps = module:get_option_array("server_status_show_comps", nil) |
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9 local json_output = module:get_option_boolean("server_status_json", false) |
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10 |
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11 local json_encode = require "util.json".encode |
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12 |
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13 -- code begin |
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14 |
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15 if not prosody.stanza_counter and not show_hosts and not show_comps then |
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16 module:log ("error", "mod_server_status requires at least one of the following things:") |
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17 module:log ("error", "mod_stanza_counter loaded, or either server_status_show_hosts or server_status_show_comps configuration values set.") |
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18 module:log ("error", "check the module wiki at: http://code.google.com/p/prosody-modules/wiki/mod_server_status") |
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19 return false |
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20 end |
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21 |
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22 local response_table = {} |
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23 response_table.header = '<?xml version="1.0" encoding="UTF-8" ?>' |
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24 response_table.doc_header = '<document>' |
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25 response_table.doc_closure = '</document>' |
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26 response_table.stanzas = { |
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27 elem_header = ' <stanzas>', elem_closure = ' </stanzas>', |
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28 incoming = ' <incoming iq="%d" message="%d" presence="%d" />', |
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29 outgoing = ' <outgoing iq="%d" message="%d" presence="%d" />' |
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30 } |
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31 response_table.hosts = { |
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32 elem_header = ' <hosts>', elem_closure = ' </hosts>', |
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33 status = ' <status name="%s" current="%s" />' |
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34 } |
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35 response_table.comps = { |
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36 elem_header = ' <components>', elem_closure = ' </components>', |
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37 status = ' <status name="%s" current="%s" />' |
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38 } |
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39 |
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40 local function forge_response_xml() |
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41 local hosts_s = {}; local components = {}; local stats = {}; local hosts_stats = {}; local comps_stats = {} |
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42 |
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43 local function t_builder(t,r) for _, bstring in ipairs(t) do r[#r+1] = bstring end end |
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44 |
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45 if show_hosts then t_builder(show_hosts, hosts_s) end |
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46 if show_comps then t_builder(show_comps, components) end |
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47 |
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48 -- build stanza stats if there |
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49 if prosody.stanza_counter then |
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50 stats[1] = response_table.stanzas.elem_header |
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51 stats[2] = response_table.stanzas.incoming:format(prosody.stanza_counter.iq["incoming"], |
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52 prosody.stanza_counter.message["incoming"], |
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53 prosody.stanza_counter.presence["incoming"]) |
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54 stats[3] = response_table.stanzas.outgoing:format(prosody.stanza_counter.iq["outgoing"], |
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55 prosody.stanza_counter.message["outgoing"], |
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56 prosody.stanza_counter.presence["outgoing"]) |
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57 stats[4] = response_table.stanzas.elem_closure |
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58 end |
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59 |
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60 -- build hosts stats if there |
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61 if hosts_s[1] then |
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62 hosts_stats[1] = response_table.hosts.elem_header |
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63 for _, name in ipairs(hosts_s) do |
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64 hosts_stats[#hosts_stats+1] = response_table.hosts.status:format( |
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65 name, hosts[name] and "online" or "offline") |
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66 end |
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67 hosts_stats[#hosts_stats+1] = response_table.hosts.elem_closure |
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68 end |
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69 |
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70 -- build components stats if there |
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71 if components[1] then |
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72 comps_stats[1] = response_table.comps.elem_header |
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73 for _, name in ipairs(components) do |
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74 comps_stats[#comps_stats+1] = response_table.comps.status:format( |
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75 name, hosts[name] and hosts[name].modules.component and hosts[name].modules.component.connected and "online" or |
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76 hosts[name] and hosts[name].modules.component == nil and "online" or "offline") |
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77 end |
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78 comps_stats[#comps_stats+1] = response_table.comps.elem_closure |
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79 end |
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80 |
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81 -- build xml document |
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82 local result = {} |
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83 result[#result+1] = response_table.header; result[#result+1] = response_table.doc_header -- start |
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84 t_builder(stats, result); t_builder(hosts_stats, result); t_builder(comps_stats, result) |
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85 result[#result+1] = response_table.doc_closure -- end |
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86 |
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87 return table.concat(result, "\n") |
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88 end |
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89 |
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90 local function forge_response_json() |
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91 local result = {} |
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92 |
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93 if prosody.stanza_counter then result.stanzas = {} ; result.stanzas = prosody.stanza_counter end |
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94 if show_hosts then |
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95 result.hosts = {} |
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96 for _,n in ipairs(show_hosts) do result.hosts[n] = hosts[n] and "online" or "offline" end |
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97 end |
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98 if show_comps then |
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99 result.components = {} |
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100 for _,n in ipairs(show_comps) do |
546
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101 result.components[n] = hosts[n] and hosts[n].modules.component and hosts[n].modules.component.connected and "online" or |
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102 hosts[n] and hosts[n].modules.component == nil and "online" or "offline" |
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103 end |
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104 end |
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105 |
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106 return json_encode(result) |
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107 end |
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108 |
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109 -- http handlers |
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110 |
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111 local function request(event) |
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112 local response = event.response |
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113 if not json_output then |
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mod_server_status: for sure xml isn't json, passing json mime and viceversa isn't appropriate at all. *no no*
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114 response.headers.content_type = "text/xml" |
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115 response:send(forge_response_xml()) |
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116 else |
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117 response.headers.content_type = "application/json" |
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118 response:send(forge_response_json()) |
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119 end |
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120 end |
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121 |
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122 -- initialization. |
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123 |
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124 module:provides("http", { |
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125 default_path = base_path, |
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126 route = { |
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127 ["GET /"] = request |
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128 } |
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129 }) |
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130 |