Mercurial > prosody-modules
annotate mod_muc_http_defaults/mod_muc_http_defaults.lua @ 4447:07aa101a1ae7
mod_muc_http_defaults: Get MUC room config from an API
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 19 Feb 2021 16:01:41 +0100 |
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children | 5879ca1f7853 |
rev | line source |
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4447
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1 -- Copyright (C) 2021 Kim Alvefur |
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2 -- |
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3 -- This file is MIT licensed. Please see the |
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4 -- COPYING file in the source package for more information. |
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5 -- |
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6 |
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7 local http = require "net.http"; |
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8 local httperr = require "net.http.errors"; |
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9 local async = require "util.async"; |
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10 local errors = require "util.error"; |
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11 local uh = require "util.http"; |
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12 local jid = require "util.jid"; |
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13 local json = require "util.json"; |
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14 local st = require "util.stanza"; |
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15 |
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16 local render = require "util.interpolation".new("%b{}", uh.urlencode); |
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17 |
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18 module:depends"muc"; |
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19 |
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20 local url_template = assert(module:get_option_string("muc_create_api_url", nil), "'muc_create_api_url' is a required option"); |
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21 local apiauth = module:get_option_string("muc_create_api_auth", nil); |
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22 |
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23 local ex = { |
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24 headers = { |
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25 accept = "application/json"; |
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26 authorization = apiauth; |
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27 } |
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28 }; |
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29 |
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30 local function check_status(response) |
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31 if math.floor(response.code/100) > 2 then |
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32 error(httperr.new(response.code, response.body)); |
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33 end |
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34 return response; |
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35 end |
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36 |
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37 local problems = errors.init(module.name, { |
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38 format = { type = "cancel", condition = "internal-server-error", text = "API server returned invalid data, see logs" }, |
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39 config = { type = "cancel", condition = "internal-server-error", text = "A problem occured while creating the room, see logs" }, |
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40 }); |
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41 |
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42 local function get_json(response) |
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43 return assert(json.decode(response.body), problems.new("format")); |
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44 end |
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45 |
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46 local function apply_config(room, settings) |
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47 local affiliations = settings.affiliations; |
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48 if type(affiliations) == "table" then |
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49 |
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50 -- COMPAT the room creator is unconditionally made 'owner' |
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51 -- clear existing affiliation |
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52 for existing_affiliation in pairs(room._affiliation) do |
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53 room:set_affiliation(true, existing_affiliation, "none"); |
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54 end |
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55 |
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56 if affiliations[1] ~= nil then -- array of ( jid, affiliation, nick ) |
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57 for _, aff in ipairs(affiliations) do |
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58 if type(aff) == "table" and type(aff.jid) == "string" and (aff.nick == nil or type(aff.nick) == "string") then |
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59 local prepped_jid = jid.prep(aff.jid); |
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60 if prepped_jid then |
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61 local ok, err = room:set_affiliation(true, prepped_jid, aff.affiliation, aff.nick and { nick = aff.nick }); |
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62 if not ok then |
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63 module:log("error", "Could not set affiliation in %s: %s", room.jid, err); |
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64 return nil, problems.new("config"); |
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65 end |
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66 else |
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67 module:log("error", "Invalid JID returned from API for %s: %q", room.jid, aff.jid); |
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68 return nil, problems.new("format"); |
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69 end |
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70 else |
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71 module:log("error", "Invalid affiliation item returned from API for %s: %q", room.jid, aff); |
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72 return nil, problems.new("format"); |
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73 end |
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74 end |
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75 else -- map of jid : affiliation |
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76 for user_jid, aff in pairs(affiliations) do |
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77 if type(user_jid) == "string" and type(aff) == "string" then |
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78 local prepped_jid = jid.prep(user_jid); |
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79 if prepped_jid then |
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80 local ok, err = room:set_affiliation(true, prepped_jid, aff); |
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81 if not ok then |
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82 module:log("error", "Could not set affiliation in %s: %s", room.jid, err); |
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83 return nil, problems.new("config"); |
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84 end |
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85 else |
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86 module:log("error", "Invalid JID returned from API: %q", aff.jid); |
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87 return nil, problems.new("format"); |
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88 end |
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89 end |
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90 end |
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91 end |
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92 elseif affiliations ~= nil then |
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93 module:log("error", "Invalid affiliations returned from API for %s: %q", room.jid, affiliations); |
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94 return nil, problems.new("format", { field = "affiliations" }); |
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95 end |
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96 |
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97 local config = settings.config; |
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98 if type(config) == "table" then |
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99 -- TODO reject invalid fields instead of ignoring them |
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100 if type(config.name) == "string" then room:set_name(config.name); end |
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101 if type(config.description) == "string" then room:set_description(config.description); end |
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102 if type(config.language) == "string" then room:set_language(config.language); end |
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103 if type(config.password) == "string" then room:set_password(config.password); end |
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104 if type(config.subject) == "string" then room:set_subject(config.subject); end |
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105 |
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106 if type(config.public) == "boolean" then room:set_public(config.public); end |
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107 if type(config.members_only) == "boolean" then room:set_members_only(config.members_only); end |
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108 if type(config.allow_member_invites) == "boolean" then room:set_allow_member_invites(config.allow_member_invites); end |
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109 if type(config.moderated) == "boolean" then room:set_moderated(config.moderated); end |
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110 if type(config.persistent) == "boolean" then room:set_persistent(config.persistent); end |
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111 if type(config.changesubject) == "boolean" then room:set_changesubject(config.changesubject); end |
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112 |
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113 if type(config.historylength) == "number" then room:set_historylength(config.historylength); end |
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114 if type(config.public_jids) == "boolean" then room:set_whois(config.public_jids and "anyone" or "moderators"); end |
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115 -- Leaving out presence_broadcast for now |
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116 |
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117 -- mod_muc_mam |
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118 if type(config.archiving) == "boolean" then room._config.archiving = config.archiving; end |
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119 elseif config ~= nil then |
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120 module:log("error", "Invalid config returned from API for %s: %q", room.jid, config); |
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121 return nil, problems.new("format", { field = "config" }); |
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122 end |
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123 return true; |
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124 end |
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125 |
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126 module:hook("muc-room-pre-create", function(event) |
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127 local url = render(url_template, event); |
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128 module:log("debug", "Calling API at %q for room %s", url, event.room.jid); |
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129 local ret, err = errors.coerce(async.wait_for(http.request(url, ex):next(check_status):next(get_json))); |
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130 if not ret then |
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131 event.room:destroy(); |
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132 event.origin.send(st.error_reply(event.stanza, err)); |
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133 return true; |
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134 end |
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135 |
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136 local configured, err = apply_config(event.room, ret); |
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137 if not configured then |
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138 event.room:destroy(); |
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139 event.origin.send(st.error_reply(event.stanza, err)); |
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140 return true; |
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141 end |
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142 end, -2); |